Entries |
Document | Title | Date |
20080215265 | ELECTRONIC APPARATUS - When discharge power calculated based on a current value detected by a current detector is smaller than expected maximum power, which is the maximum power expected in an actual operation, a discharge efficiency at the expected maximum power is set as a discharge efficiency used for remaining capacity calculation. This ensures that a remaining capacity based on power required for a photographing operation can be detected. | 09-04-2008 |
20080215266 | METHOD OF CALCULATING INTERNAL RESISTANCE OF SECONDARY BATTERY FOR VEHICLE - A current Ibe and a voltage Vbe before a large current discharge in a secondary battery are stored in a memory. Plural voltage-current pairs are detected and stored in the memory during the large current discharge. Next, a regression curve (or a regression line) is obtained based on the plural voltage-current pairs stored in the memory using a well-known method. A discharge current Ip which exceeds a current-sensor detectable range is input in the regression curve to obtain a voltage Vp. A maximum discharge coordinate is set using the discharge current Ip and the voltage Vp. An internal resistance Rin of the secondary battery is calculated based on an inclination of a line that connects the coordinates (Ibe, Vbe) and (Ip, Vp). | 09-04-2008 |
20080234956 | METHOD OF CALCULATING STATE VARIABLES OF SECONDARY BATTERY AND APPARATUS FOR ESTIMATING STATE VARIABLES OF SECONDARY BATTERY - An apparatus for estimating state variables of a secondary battery as an estimation target performs so that a neural network unit studies a true value of a battery temperature, a temperature large value which is larger than the true value of the battery temperature by an approximating temperature sensor detection error, and a temperature small value which is smaller than the true value of the battery temperature by the approximating temperature sensor detection error. After completion of the learning of those values, the neural network unit inputs a battery temperature detected by the temperature sensor, and performs a neural network based calculation to calculate a SOC (state of charge) of the secondary battery. This can drastically increase the calculation accuracy of the SOC of the secondary battery. | 09-25-2008 |
20080243405 | METHOD AND DEVICE FOR ESTIMATING BATTERY RESIDUAL CAPACITY, AND BATTERY POWER SUPPLY SYSTEM - In the method for estimating battery residual capacity of the present invention, the voltage measurement values are obtained (step S | 10-02-2008 |
20080249724 | SYSTEM AND METHOD OF BATTERY CAPACITY ESTIMATION - In accordance with the teachings described herein, systems and methods are provided for battery capacity estimation. A profile table may be used that relates a plurality of battery profile values with a plurality of operating parameter values. The profile table may be accessed to translate one or more measured operating parameters into one or more corresponding battery profile values. One or more of the battery profile values may be adjusted by a correction factor to generate a corrected battery profile value. The available capacity of the battery may be calculated using the corrected battery profile value. The correction factor may then be automatically calibrated by using an estimated battery profile value calculated from the one or more measured operating parameter. | 10-09-2008 |
20080249725 | SYSTEM, METHOD, AND ARTICLE OF MANUFACTURE FOR DETERMINING AN ESTIMATED COMBINED BATTERY STATE-PARAMETER VECTOR - A system, a method, and an article of manufacture for determining an estimated combined battery state-parameter vector are provided. The method determines the estimated combined battery state-parameter vector based on a plurality of predicted the combined battery state-parameter vectors, a plurality of predicted battery output vectors, and a battery output vector. | 10-09-2008 |
20080249726 | SYSTEM, METHOD, AND ARTICLE OF MANUFACTURE FOR DETERMINING AN ESTIMATED COMBINED BATTERY STATE-PARAMETER VECTOR - A system, a method, and an article of manufacture for determining an estimated combined battery state-parameter vector are provided. The method determines the estimated combined battery state-parameter vector based on a plurality of predicted the combined battery state-parameter vectors, a plurality of predicted battery output vectors, and a battery output vector. | 10-09-2008 |
20080255783 | Fully-charged battery capacity detection method - In a fully-charged battery capacity detection method, first and second no-load voltages (VOCV | 10-16-2008 |
20080288194 | SYSTEMS AND METHODS OF PROFILING POWER CYCLES IN A BATTERY FOR INDICATING DETRIMENTAL BATTERY OPERATION - Systems and methods for profiling power cycle characteristics in a device powered at least by a battery are disclosed. In one embodiment, the method comprises the steps of: detecting a series of power cycle events, examining the series of power cycle events for at least one indication of reduced life of the battery; storing the indication; and notifying a user of the device about the indication. Each power cycle event indicates a transition between line power and battery power. | 11-20-2008 |
20080312852 | Wireless Battery Status Management for Medical Devices - In a wireless medical component ( | 12-18-2008 |
20080312853 | Method and Apparatus for Measuring and Monitoring a Power Source - A system and method for monitoring a power source using a site controller ( | 12-18-2008 |
20090018785 | Model-based determination of power source replacement in wireless and other devices - A model-based system and method for analyzing power source performance and optimizing operational costs are provided. Data from the power source (such as a battery) and/or a device associated with the power source is analyzed and processed to predict an operating life of the power source. This could allow, for example, a power source replacement schedule to be generated for the device. If the analysis indicates that abnormal conditions exist or that any user-defined alerts are warranted, a message could also be sent to an operator terminal. The system and method may continue to monitor the device and thus provide real-time data. The data may also be stored in memory, collected over time, and analyzed or used in various ways. The system and method thus provide a cost effective and reliable analysis of power source performance and any associated operational and replacement costs. | 01-15-2009 |
20090024338 | Remaining-Amount Estimation Device and Method For Secondary Battery - An SOC-estimation-value-depending gain selection unit multiplies the deviation of an SOC estimation value (last calculated value) relative to an estimated SOC by a correction gain G | 01-22-2009 |
20090024339 | METHOD AND APPARATUS FOR CONFIRMING THE CHARGE AMOUNT AND DEGRADATION STATE OF A BATTERY, A STORAGE MEDIUM, AN INFORMATION PROCESSING APPARATUS, AND AN ELECTRONIC APPARATUS - A method and apparatus is used to confirm the charge amount and degradation state of a battery. Various cycle test battery measurements are conducted at prescribed time intervals until the end of the battery life, and the measured values are used to generate a determination table or determination tables showing relationships between battery charge amount and degradation state. To establish the charge amount and degradation state of a subject battery, the subject battery is measured and the results compared with determination table values. The existing charge amount and the state of battery degradation are estimated in accordance with a determination table location of matching values. | 01-22-2009 |
20090030626 | REMAINING ELECTRICAL CHARGE/REMAINING CAPACITY ESTIMATING METHOD, BATTERY STATE SENSOR AND BATTERY POWER SOURCE SYSTEM - The present invention provides a battery remaining electrical charge/remaining capacity estimating method which makes it possible to obtain a convergence value of a battery open circuit voltage with high accuracy and in a short time. | 01-29-2009 |
20090030627 | SYSTEM, METHOD, AND ARTICLE OF MANUFACTURE FOR DETERMINING AN ESTIMATED BATTERY STATE VECTOR - A system, a method, and an article of manufacture for determining an estimated battery state vector indicative of a state of a battery are provided. The method determines a first estimated battery state vector indicative of the state of the battery at a first predetermined time based on a plurality of predicted battery state vectors, a plurality of predicted battery output vectors, and a first battery output vector. | 01-29-2009 |
20090037124 | Battery status detecting method, battery status detecting apparatus, and expression deriving method - A battery status detecting method for detecting a battery status of a secondary battery that supplies power to an electrical load is disclosed. This method includes measuring a discharge current value of the secondary battery, and estimating the dischargeable capacity or the dischargeable time of the secondary battery with the measured discharge current value based on discharge characteristics of the secondary battery indicating the discharge status of the secondary battery when the voltage of the secondary battery drops to a predetermined voltage specified by the electrical load. | 02-05-2009 |
20090037125 | SYSTEM, METHOD, AND ARTICLE OF MANUFACTURE FOR DETERMINING AN ESTIMATED BATTERY STATE VECTOR - A system, a method, and an article of manufacture for determining an estimated battery state vector indicative of a state of a battery are provided. The method determines a first estimated battery state vector indicative of the state of the battery at a first predetermined time based on a plurality of predicted battery state vectors, a plurality of predicted battery output vectors, and a first battery output vector. | 02-05-2009 |
20090048793 | State and parameter estimator having integral and differential components for electrical energy accumulators - A device is described for ascertaining state variables and/or parameters of a mathematical energy accumulator model, in particular a battery model, that describes the electrical properties of the energy accumulator on the basis of various state variables and parameters, the mathematical energy accumulator model having correction equations by which the state variables and/or the parameters are corrected and adjusted to the actual operating performance of the energy accumulator. A particularly rapid and accurate compensation of the energy accumulator model may be achieved if the error between a measured battery performance quantity and the battery performance quantity calculated by the energy accumulator models, a differentiated component of the error and an integrated component of the error are calculated, the individual components are each weighted using a weighting factor and the weighted error components are taken into account in correction of a state variable and/or a parameter. | 02-19-2009 |
20090055110 | LITHIUM SULFUR RECHARGEABLE BATTERY FUEL GAUGE SYSTEMS AND METHODS - Systems and methods for accurately determining the state of charge and the relative age of lithium sulfur batteries are provided. The cell resistance and taper input charge of a particular type of lithium sulfur battery are respectively measured to determine the state of charge and age of the battery. | 02-26-2009 |
20090070052 | SECONDARY-BATTERY LIFE ESTIMATION APPARATUS AND METHOD - A secondary-battery life estimation apparatus includes: a voltage measuring portion measuring a terminal voltage of a secondary battery to be measured; a first memory storing in advance a terminal voltage V | 03-12-2009 |
20090088992 | Intelligent battery safety management - A method and apparatus for intelligent battery safety management. Some embodiments of a method for managing battery operation may include receiving a battery pack in a device, where the battery pack is rechargeable and includes a battery cell. In some embodiments data may be collected regarding the operation of the battery cell in the device, and the collected data may be compared with a set of battery reference data. In some embodiments a determination may be made whether the battery cell is non-authentic or defective based at least in part on the comparison between the collected data and the battery reference data. | 04-02-2009 |
20090088993 | VEHICLE POWER SUPPLY DEVICE AND ITS DEGRADATION JUDGMENT METHOD - A vehicle power supply device has a capacitor unit including capacitors storing auxiliary power; a temperature sensor; a charge circuit; a capacitor-unit current detector; a capacitor-unit voltage detector; a controller; a storage; and a determination unit. The determination unit determines the degradation level of the capacitor unit based on at least one of an internal resistance standard value and a corrected calculated value of capacitance. This structure determines degradation of the vehicle power supply device more accurately than ever, so that the device can be used until the end of the actual life. | 04-02-2009 |
20090088994 | BATTERY STATE DETERMINING APPARATUS - The present invention provides a battery state determining apparatus which can determine a battery state of a lead battery from an engine starting voltage accurately considering influence of a temperature of a vehicle. An engine starting voltage Vst | 04-02-2009 |
20090099799 | Systems, Methods and Circuits for Determining Micro-Short - Various systems and methods for determining micro-shorts are disclosed. For example, some embodiments of the present invention provide battery systems including a determination of potential micro-shorts based on rate of change of state of charge. Such battery systems include: a battery, a processor, and a computer readable medium. The computer readable medium includes instructions executable by the processor to: determine a rate of change of the state of charge of the battery; compare the rate of change of the state of charge of the battery against a threshold; and indicate a potential failure where the result of the comparison is beyond the threshold. | 04-16-2009 |
20090099800 | Apparatus and Method for Controlling Charging and Discharging Power Storage Device | 04-16-2009 |
20090112495 | METHOD FOR ESTIMATING BATTERY LIFE IN A HYBRID POWERTRAIN - A method for estimating an operating life for an electrical energy storage system electrically connected to transmit power to a hybrid powertrain system includes monitoring temperature state-of-charge and electric current of the electrical energy storage system, calculating a battery life metric for a time interval based upon the temperature, the state-of-charge, and the electric current discharge, determining a total battery life metric therefrom and determining the remaining operating life of the electrical energy storage system. | 04-30-2009 |
20090112496 | BATTERY PACK, METHOD OF CHARGING SECONDARY BATTERY AND BATTERY CHARGER - A battery pack includes a secondary battery including a plurality of cell blocks, a measuring section, a charge and discharge control switch, a protection circuit, and a memory. The measuring section detects a voltage, a current, and an internal resistance, of the secondary battery. The controller monitors the voltage and the current of the secondary battery and outputs a request signal indicative of a charge condition to charge the secondary battery in accordance with the charge condition which is set. The protection circuit monitors voltages of the plurality of cell blocks. The memory registers an initial internal resistance of the secondary battery. The controller calculates a deterioration coefficient by a ratio of the internal resistance detected by the measuring section to the initial internal resistance registered in the memory, and changes the charge condition in accordance with the deterioration coefficient. | 04-30-2009 |
20090125256 | Monitoring Apparatus For Secondary Battery - When the number of battery cells of a certain battery block is different from a reference number of cells, the inter-terminal voltage of the battery block is converted into the voltage corresponding to the reference number of cells. Thus, even when a plurality of battery blocks being different in the number of battery cells are included, a map for calculating the SOC may only be one. That is, since conventional software or calculation methods can be used, it is not necessary to increase the capacity of SOC calculation software or allowable battery output calculation software. As a result, a plurality of assembled batteries being different in the number of battery cells constituting each battery block can appropriately be monitored. | 05-14-2009 |
20090132186 | METHOD AND SYSTEM FOR REPORTING BATTERY STATUS BASED ON CURRENT ESTIMATION - A charge stored in a battery is estimated by multiplying estimated charge currents supplied during charge phases and estimated discharge currents discharged during operational modes by the respective amounts of time of charging and discharge. The state of charge of the battery is calculated from the estimated stored charge. Furthermore, parameters of the battery may be measured to be used to adjust the estimated state of charge of the battery. In a first case, the estimated stored charge may be adjusted to a charge value corresponding to the detected completion of a constant current charge phase. In a second case, the estimated stored charge may be adjusted to a charge value corresponding to the detected completion of a constant voltage charge phase. In a third case, the estimated stored charge may be adjusted to a charge value corresponding to a detected predetermined discharge level of the battery. | 05-21-2009 |
20090144001 | Networked Battery Monitors - A battery monitoring system for simultaneously managing the batteries in 100 or more remote locations, each of said locations comprising a battery string with 100 or fewer cells, said system comprising:
| 06-04-2009 |
20090150101 | Semiconductor Integrated Circuit Device and Battery Pack - A semiconductor integrated circuit device for calculating a remaining battery capacity of a battery from which the semiconductor integrated circuit device receives power supply, and reporting the calculated remaining battery capacity to a battery-using appliance which also receives power supply from the battery includes a clock generating unit configured to generate a first clock signal and a second clock signal having a higher frequency than a frequency of the first clock signal; a selecting unit configured to select one of the first clock signal and the second clock signal and output the selected clock signal; a calculating unit configured to operate according to the selected clock signal to calculate the remaining battery capacity; and a communicating unit configured to operate according to the selected clock to report the calculated remaining battery capacity to the battery-using appliance. | 06-11-2009 |
20090157335 | TELEMATICS-BASED METHOD AND SYSTEM OF BATTERY PARASITIC LOAD VALIDATION FOR A VEHICLE FLEET - Parasitic loads on a vehicular battery are evaluated based on an estimated reduction in the state of charge of the battery over the course of an engine-off state. | 06-18-2009 |
20090171598 | Battery Pack, Electronic Appliance, And Method of Detecting Remaining Amount of Battery - A battery pack has a charge and discharge count measuring part ( | 07-02-2009 |
20090171599 | Battery Discharge Indicator For Golf Car - A system is disclosed for determining battery state-of-charge (SoC) in an electric vehicle. The system includes an inverter that converts battery power to an alternating current, a current sensor that generates a signal indicative of a magnitude and direction of the alternating current, a first analog-to-digital converter (A2D) that converts the signal to current data, and a central processing unit (CPU) that periodically stores a present value of the current data to an associated memory and determines the SoC based on the stored current data. | 07-02-2009 |
20090171600 | Battery State Judging Method, And Battery State Judging Device - A battery state judging method is provided capable of properly judging a state of a lead-acid battery by measuring voltages without measuring currents. A state of the battery is judged by obtaining, in advance, a DC internal resistance r | 07-02-2009 |
20090171601 | BATTERY DETECTION DEVICE AND METHOD THEREOF - A battery detection device for detection battery voltage of a device is provided. The device includes a voltage dividing circuit configured to provide an output voltage in proportion to the battery voltage, and a detection unit which includes a voltage detection module, a comparison module, a control module and a state detection module configured to obtain the device's state. The voltage detection module produces a digital detection voltage according to the output voltage every normal time interval initially, the comparison module detects whether the digital detection voltage is lower than a reference voltage corresponding to the state. If yes, the voltage detection module obtains digital detection voltage for predetermined times of abnormal time interval. The comparison module compares the digital detection voltage with the reference voltage to produce comparison results. The control module determines whether to maintain the device's state according to the comparison results. | 07-02-2009 |
20090187359 | SYSTEM AND METHOD FOR ESTIMATING BATTERY STATE OF CHARGE - A battery system is disclosed herein. The battery system includes a battery and a controller operatively connected to the battery. The controller is configured to estimate a battery state of charge based on a history of the battery current such that the battery state of charge estimate is obtainable during the battery's course of use. A corresponding method for estimating the state of charge of a battery is also disclosed. | 07-23-2009 |
20090187360 | Data Collection Device And Associated System For Monitoring And Storing Performance And Maintenance Data Related To A Component Of An Electrical System - The present invention provides systems and methods for testing and storage of information related to a component. A data collection device having a memory is fixedly connected to the component. A test device communicates with the data collection device to store test data concerning the component in the data collection device. The test device also performs analysis of the test data and provides information concerning the health and maintenance history of the component. The present invention also provides systems and methods for determining the current drawn or supplied by electrical components connected in parallel in an electrical system. A current sensor located between the electrical components determines the current supply or draw of one of the electrical components, while a current sensor between the electrical components and the remainder of the electrical system determine a cumulative current draw or supply by both the electrical components. | 07-23-2009 |
20090192737 | METHOD FOR ESTIMATING LIFE STATUS OF LITHIUM BATTERY - A method for estimating a life status of a lithium battery applicable to a portable electronic device is described. The method includes the following steps. Firstly, a plurality of lithium battery life status intervals are sectioned out by a plurality of voltage-electric quantity curves representing characteristics of the lithium battery. Then, an actual voltage and an actual electric quantity of the lithium battery of the portable electronic device are measured. Afterwards, positions of the actual voltage and the actual electric quantity in the lithium battery life status intervals are determined to estimate the life status of the lithium battery. | 07-30-2009 |
20090210179 | MODEL-BASED ESTIMATION OF BATTERY HYSTERESIS - A method of battery state of charge estimation considering battery hysteresis includes using a Preisach-model-based algorithm to calculate a battery state of charge. | 08-20-2009 |
20090248331 | Systems and Methods for Determining State of Battery Charge in a Host - A processor executes a program to calculate values of the internal resistance R of a battery and updates a database of parameters defining the dependence of internal resistance on the battery state of charge (SOC) and temperature. The database is utilized to obtain the information needed to make accurate remaining run-time calculations. The processor may also execute a program to effectuate entry of a database into memory representative of characteristics of the battery including values of measured open circuit voltages (OCV) of the battery and determinations of “starting SOC” values that correspond to the most recently measured values of OCV after the battery has stabilized. The processor may also execute programs to determine the present SOC of the battery, the present battery capacity, and the remaining run-time of the device powered by the battery. | 10-01-2009 |
20090248332 | Maximizing Battery Life - Maximizing battery life includes identifying a characteristic curve for a voltage regulating component. A raw voltage value of a battery associated with the voltage regulating component or power converting component is detected. A mathematical model is generated based on the identified characteristic curve. In addition, a value of a regulated voltage output of the voltage regulating component or a converted voltage output of the power converting component is predicted by using the generated mathematical model to convert the detected raw voltage value of the battery. | 10-01-2009 |
20090248333 | RECHARGEABLE "SMART" BATTERY WITH CYCLE STATUS INDICATOR FOR USE IN MOBILE, HANDHELD ELECTRICAL DEVICES - An electronic battery label for displaying the status of a “smart” battery, wherein the “smart” battery comprises “smart” circuitry for determining the status of the “smart” battery, the electronic battery label comprising:
| 10-01-2009 |
20090248334 | METHOD FOR ESTIMATING THE CHARGE OF A MOTOR VEHICLE BATTERY - In a method for estimating the charge of a motor vehicle battery, at least one sensor measures terminal voltage, current circulating in the battery, and temperature, such that: current variations are measured at predetermined time intervals; a modeled voltage is determined according to current and temperature; the modeled voltage includes components corresponding to charge polarization; estimated and measured voltage are compared to determine voltage error; theoretical model is adapted according to battery operating phase and determined voltage error. Operating phases of the battery on charge and discharge correspond on each occasion to operation substates including 100% saturated, close to 100% saturated, normal, close to 0% charged and 0% charged and in that, for the substates, adaptation is made for theoretical computation of battery charge state and/or computation of the component corresponding to polarization, the estimate of the state of charge of the battery being determined using the adapted theoretical model. | 10-01-2009 |
20090254290 | Method for estimating remaining capacity of battery - The present invention provides a method for estimating a remaining capacity of a battery. The method comprises: measuring a current value, a voltage value and temperature of the battery; correcting the current value based on the voltage value; calculating a current integration value by integrating the corrected current value and calculating a current integration capacity from the calculated current integration value by reflecting a charge/discharge efficiency; determining a battery forward voltage capacity from the measured current value, voltage value and temperature, and determining whether it is necessary to correct the current integration capacity based on the forward voltage capacity; converting the current integration capacity into a remaining capacity, if it is determined that it is not necessary to correct; and correcting, if it is determined that it is necessary to correct, the current integration capacity and converting the corrected current integration capacity into a remaining capacity. With the method, SOC of the battery can be more accurately calculated. | 10-08-2009 |
20090259418 | CURRENT-VOLTAGE CONVERSION CIRCUIT AND POWER CONSUMPTION DETECTION CIRCUIT AND ELECTRONIC DEVICE USING THE SAME - A current-voltage conversion circuit which converts a current to be detected into a voltage, includes a detection resistor, amplifier circuit having a first operational amplifier, and an offset adjusting current source having a third resistor and a fourth resistor which are capable of trimming. The offset adjusting current source causes an offset adjustment current to flow in the offset resistor. The current value of the offset adjustment current is controlled by adjusting the resistance of the third resistor and the fourth resistor. A voltage at a node between the first transistor and the second resistor is output. | 10-15-2009 |
20090259419 | BATTERY CONDITION DIAGNOSIS APPARATUS - A battery condition diagnosis apparatus for a vehicle gradually supplies electricity to an electric motor of an electric power steering apparatus when a predetermined time elapses after an ignition switch is turned off. The apparatus diagnoses the deteriorated condition of the battery on the basis of the amount of supplied electricity and the detected battery voltage which changes in accordance therewith. The electric motor may be a brushless DC motor. In this case, current is supplied to the electric motor such that only d-axis armature current Id in the d-q coordinate system flows, to thereby prevent the electric motor from rotating, whereby safety is secured. Accordingly, the condition of the battery can be accurately diagnosed by supplying electricity to the electric motor without changing the condition of the vehicle. | 10-15-2009 |
20090259420 | ADAPTIVE SURFACE CONCENTRATION BATTERY CHARGING - Some embodiments of the present invention provide a system that adaptively charges a battery, wherein the battery is a lithium-ion battery which includes a transport-limiting electrode, an electrolyte separator and a non-transport-limiting electrode. To charge the battery, the system first determines a lithium surface concentration at an interface between the transport-limiting electrode and the electrolyte separator. Next, the system uses the determined lithium surface concentration to control a charging process for the battery so that the charging process maintains the lithium surface concentration within set limits. | 10-15-2009 |
20090259421 | SYSTEM AND METHOD FOR ESTIMATING REMAINING RUN-TIME OF AUTONOMOUS SYSTEMS BY INDIRECT MEASUREMENT - A system and method for estimating remaining run-time of an autonomous system by indirect measure is disclosed. In one aspect, the system includes a load circuit, an energy storage system (ESS) and an energy storage management system (ESM). The load circuit includes functional blocks. The ESS stores electric energy and is connected to the load circuit and configured to supply the varying electric current to the load circuit. The ESM is configured to estimate a remaining run-time of the autonomous system. The ESM includes an input connected to one of the functional blocks of the load circuit from which a first parameter being an indirect measure for the varying electric current supplied from the energy storage system to the load circuit is received. The ESM determines the remaining run-time from this first parameter. | 10-15-2009 |
20090265125 | BATTERY STATE-OF-HEALTH MONITORING SYSTEM AND METHOD - A battery state-of-health monitoring and prognosis method includes off-line training of parity-relation parameters utilized in providing a measure of battery state-of-health. | 10-22-2009 |
20090271132 | METHOD FOR ESTIMATING STATE OF CHARGE OF A RECHARGEABLE BATTERY - An apparatus for accurately estimating the SOC of a rechargeable battery installed in a hybrid electric vehicle. A voltage variation measurement unit measures terminal voltage variation amount of the rechargeable battery in a no-battery-current state in which a charge-discharge current does not flow in the rechargeable battery. A polarization voltage calculator calculates a polarization voltage from the measured variation amount. An electromotive force calculator subtracts the polarization voltage from a non-load voltage in a state in which a charge-discharge path is open to calculate the electromotive force of the rechargeable battery. An SOC estimator estimates the SOC of the rechargeable battery based on the electromotive force. | 10-29-2009 |
20090276172 | INTERNAL STATE ESTIMATING DEVICE FOR SECONDARY BATTERY AND METHOD FOR ESTIMATING INTERNAL STATE OF SECONDARY BATTERY - By using a battery model capable of estimating the internal reaction of a secondary battery based on a parameter value, a battery model portion provides the battery model with the parameter value obtained from a parameter generating portion and estimates the internal state of the secondary battery. The parameter generating portion generates the parameter value including a material property value of the secondary battery, based on information indicating a usage state of the secondary battery. The battery model is updated by updating the parameter value. This reduces a difference between the actual internal state of the secondary battery and the internal state of the secondary battery estimated by the battery model. | 11-05-2009 |
20090287434 | METHOD FOR EVALUATING REMAINING ELECTRIC CHARGE OF A BATTERY, AND ASSOCIATED SINGLE CHIP SYSTEM - A method for evaluating a remaining electric charge of a battery that is utilized for supplying a single chip system includes: receiving signals from the battery and outputting parameters corresponding to the received signals; temporarily storing the parameters; and calculating the remaining electric charge, and when the single chip system wakes up from a sleep mode, updating the remaining electric charge according to the temporarily stored parameters. An associated single chip system includes: a power management unit for receiving signals from a battery and outputting parameters corresponding to the received signals; a storage unit, coupled to the power management unit, for temporarily storing the parameters; and a control unit, coupled to the storage unit, for calculating a remaining electric charge, wherein when the single chip system wakes up from a sleep mode, the control unit updates the remaining electric charge according to the parameters from the storage unit. | 11-19-2009 |
20090292487 | BATTERY DETECTION AND USER EXPERIENCE - A method and medium are provided for enabling reliable indication of the amount of time a battery will provide sufficient charge to power a computing device. In one embodiment, the time interval that lapses from the charge draining from the battery between two thresholds is determined, and the thresholds are adjusted based on the time interval. Other embodiments provide for classifying a battery as no longer capable of maintaining sufficient charge by comparing the maximum amount of charge the battery could store to the current maximum amount of charge the battery can currently store. Another embodiment determines how long a battery will provide sufficient charge to power a computing device based on profiles of user activity and associated battery drain rates. The current amount of charge stored in the battery is divided by the profile drain rate to determine how long the battery will provide sufficient charge to power the computing device. | 11-26-2009 |
20090306915 | Method for predicting the power capacity of electrical energy stores - A method and a corresponding device are described for predicting the power capacity of an electrical energy store, such as a battery in a vehicle, in which, with the aid of a mathematical model for the energy store, its state variables and parameters are continuously adjusted, and thereby a charge and discharge power capability is estimated and predicted. | 12-10-2009 |
20090319208 | BATTERY MANAGEMENT METHOD - Disclosed herein is a battery management method. The battery management method includes measuring voltage, current and temperature of a battery, calculating the State Of Charge (SOC) of the battery using the integration value of the measured current of the battery, and calibrating the calculated SOC of the battery. The voltage, current and temperature of the battery are measured by an Electronic Control Unit (ECU). | 12-24-2009 |
20090319209 | BATTERY MANAGEMENT SYSTEM AND DRIVING METHOD THEREOF - A battery management system, and a driving method thereof, includes a sensing unit and an MCU. The sensing unit stores a detection voltage that corresponds to a cell voltage of a first battery among a plurality of battery cells, and measures a current of the battery at an end point of storing of the detection voltage. The MCU controls the sensing unit to measure the battery current at the end point of storing of the detection voltage. | 12-24-2009 |
20090326841 | Pattern recognition approach to battery diagnosis and prognosis - A method is provided for determining a state-of-health of a battery in a vehicle-during an engine cranking phase. An engine cranking phase is initiated. Characteristic data is recorded that includes battery voltage data and engine cranking speed data during the engine cranking phase. The characteristic data is provided to a pre-processing unit. The pre-processing unit normalizes the characteristic data for processing within a classifier. The normalized data is input o the classifier for determining the vehicle battery state-of-health. The classifier has a trained state-of-health decision boundary resulting from a plurality of trials in which predetermined characterization data is collected with known classes. The battery state-of-health is classified based on the trained state-of-health decision boundary. | 12-31-2009 |
20100004884 | SYSTEM AND METHOD FOR DETERMINING CAPACITY OF BATTERY OF ELECTRONIC DEVICE - A capacity determining system includes a measuring module, a reference module, and a calculating module. The measuring module is configured to measure current capacity of a battery of an electronic device. The reference module is configured to define standard consuming capacities of functions of the electronic device. The calculating module is configured to calculate results for performing the functions by respectively dividing the standard consuming capacities into the current capacity. A method for determining capacity of a battery of an electronic device is also provided. | 01-07-2010 |
20100004885 | DEVICE AND METHOD FOR DETECTING ABNORMALITY OF ELECTRIC STORAGE DEVICE - Provided is an abnormality detecting device for detecting an abnormality of electric storage devices such as a battery pack. Comparators ( | 01-07-2010 |
20100017154 | Battery Monitoring and Protecting Device - A battery monitoring and protecting device is disclosed. The device includes a voltage detector, an analog-to-digital converter, a controller and a communication interface. Also, the device has an ID code, by which whether the device is actuated can be determined. The data stored in the device can be sent out to communicate with an external unit at next timing phase if the device is actuated. This can prevent from interference or collision with each other when multiple devices are connected in parallel or series. | 01-21-2010 |
20100017155 | BATTERY MANAGEMENT SYSTEM - A battery management system includes a neural network, for estimating an amount of charge stored in a battery following a recharging operation. Then, an amount of charge drawn during a discharging operation is subtracted from this estimated amount of charge to derive an estimate for the state of charge of the battery at a present time. A parameter representing the state of health of the battery may be provided as an input to the neural network, and the parameter representing the state of health of the battery may be generated by a second neural network. | 01-21-2010 |
20100023285 | APPARATUS AND METHOD FOR DETECTING CHARGED STATE OF ELECTRIC STORAGE DEVICE - Provided is an apparatus for detecting state of charge (SOC) of a battery. A voltage of a battery pack ( | 01-28-2010 |
20100030498 | SECONDARY BATTERY DETERIORATION JUDGING DEVICE AND BACKUP POWER SUPPLY - A secondary battery deterioration judging device is provided with an overdischarge detecting section for detecting the overdischarge of a secondary battery, the deterioration of which is to be judged, a computing section for integrating a value indicating the deterioration of the secondary battery while the overdischarge is detected by the overdischarge detecting section, and a judging section for judging a deterioration state of the secondary battery based on an integration value obtained by the computing section. | 02-04-2010 |
20100030499 | Status Detector for Power Supply, Power Supply, and Initial Characteristic Extracting Device for Use with Power Supply - In a status detector for a power supply, a power supply, and an initial characteristic extracting device for use with the power supply, a measuring unit obtains measured values of at least current, voltage and temperature of the electricity accumulating unit. A processing unit executes status detection of the electricity accumulating unit by using the measured values and the characteristic information of the electricity accumulating unit which is stored in a memory unit. A discrepancy detecting unit detects the presence of a discrepancy away from a theoretical value when a result of the status detection is changed over a predetermined threshold or reversed with respect to the measured values. A modifying unit modifies the characteristic information depending on the detected discrepancy. | 02-04-2010 |
20100036626 | APPARATUS AND METHOD FOR ESTIMATING STATE OF HEALTH OF BATTERY BASED ON BATTERY VOLTAGE VARIATION PATTERN - An apparatus estimates SOH of a battery based on a battery voltage variation pattern. A data storing unit obtains and stores battery voltage, current and temperature data from sensors, at each SOH estimation. A first SOC estimating unit estimates first SOC by current integration using the battery current data. A second SOC estimating unit estimates open-circuit voltage from the voltage variation pattern, and calculates and stores second SOC corresponding to the open-circuit voltage and temperature using correlations between the open-circuit voltage/temperature and SOC. A weighted mean convergence calculating unit calculates and stores convergence value for weighted mean value of ratio of the second SOC variation to the first SOC variation. A SOH estimating unit estimates capacity corresponding to the weighted mean convergence value using correlation between the weighted mean convergence value and the capacity, estimates relative ratio of the estimated capacity to an initial capacity, and stores it as SOH. | 02-11-2010 |
20100036627 | APPARATUS AND METHOD FOR DETERMINATION OF THE STATE-OF-CHARGE OF A BATTERY WHEN THE BATTERY IS NOT IN EQUILIBRIUM - The invention relates to a method and an apparatus, like a charger for determining the state-of-charge of a battery which has been charged or discharged and which has not reached its equilibrium state, the method comprising the steps of determining the EMF of the battery by extrapolation of the battery voltage sampled during relaxation after the charge or the discharge process, wherein the extrapolation is based on a model using only variables sampled during the relaxation process and deriving the state-of-charge from the EMF of the battery by using a predetermined relation between the EMF and the state-of-charge. This method is a voltage-prediction method without the need to store parameters beforehand. Instead, the voltage relaxation end value is determined based on the measured first part of a voltage relaxation curve and mathematical optimisation/fitting of a function to this measured part of the relaxation curve. | 02-11-2010 |
20100036628 | Systems and Methods for Monitoring Deterioration of a Rechargeable Battery - Systems and methods are provided for monitoring the deterioration of a rechargeable battery. A battery monitoring system may be used to store charging information, discharge information and storage information for a rechargeable battery to a data store. The charging information may include a number of charge cycles incurred by the rechargeable battery. The discharge information may include a number discharge cycles incurred by the rechargeable battery. The storage information may include information relating to periods when the rechargeable battery is not being actively charged or discharged. The battery monitoring system may be further used to determine an amount of deterioration of a battery performance characteristic based on the stored charging information, discharge information and storage information. | 02-11-2010 |
20100049457 | METHOD AND APPARATUS FOR MONITORING ENERGY STORAGE DEVICES - An improved battery, monitoring circuit and method for communicating with the battery is provided. Such batteries and communication methods are particularly useful in UPS systems that use such batteries to provide back-up power to electrical loads. In one aspect, performance, manufacturing, trend and/or other data are stored in non-volatile memory of the battery and are communicated to an external system such as a UPS. In another aspect, a method for communicating via single-wire interface is provided. In one aspect, a same interface is used to communicate with both conventional batteries and improved batteries having increased monitoring capabilities. | 02-25-2010 |
20100049458 | ELECTRONIC EQUIPMENT AND POWER MANAGEMENT METHOD FOR THE ELECTRONIC EQUIPMENT, AND POWER SOURCE UNIT - Electronic equipment and power management method for the power equipment and a power source unit are provided. The present invention provides a guideline associated with control content required to use a fuel cell as a power source in various kinds of electronic equipment, and perform appropriate power management according to loads. A notebook personal computer includes a hybrid pack which has a battery serving as a secondary battery, a battery protection IC for controlling this battery, a fuel cell for causing a predetermine fuel and air to electrochemically react with each other so as to cause a power generating unit to generate power, and a fuel cell controller for controlling this fuel cell, and a computer body at least having a CPU for executing various processes and consuming power. In the hybrid pack, the battery protection IC and the fuel cell controller mutually transfer at least remaining battery power information indicative of the amount of power remaining in the battery and fuel cell status information indicative of a status of the fuel cell, to each other via a bus. | 02-25-2010 |
20100063756 | PORTABLE DEVICE BATTERY OPTIMIZATION ROUTING SYSTEM - A battery life management unit for managing the battery life of a portable device. The battery life management unit determines a scheduled event for a user of a portable device and estimates whether battery power of the portable device will last throughout the scheduled event. If the battery power of the portable device is estimated not to last throughout the scheduled event, the battery life management unit determines whether a location of the scheduled event provides one or more battery charging resources. If the location of the scheduled event provides one or more battery charging resources, the battery life management unit reserves a battery charging resource for the user of the portable device. | 03-11-2010 |
20100063757 | Microcomputer-equipped system and battery pack for electric power tool - A microcomputer-equipped system for electric power tool includes a microcomputer, a reference voltage generator, a reference data storage unit, and a first determiner. The microcomputer includes an analog-to-digital (AD) converter and at least one AD port. The reference voltage generator generates and inputs to the AD port a reference voltage having a predetermined value. The reference data storage unit prestores reference data corresponding to the reference voltage. The first determiner compares diagnostic data obtained by AD conversion by the AD converter of the reference voltage inputted to the AD port with the reference data to determine, in case that difference between the diagnostic data and the reference data is out of a predefined allowable range, that an AD abnormal state has occurred in which a correct result of the AD conversion is unable to be obtained from the AD converter. | 03-11-2010 |
20100063758 | ELECTRONIC APPARATUS WITH POWER INDICATION FUNCTION - An electronic apparatus with a power indication function is connected to an adapter. The electronic apparatus includes a host, a power jack, a rechargeable battery, a power indication element and a controller. The power jack is disposed on the host for connecting with the adapter. The rechargeable battery is disposed in the host and is electrically connected to the power jack. The power indication element has a switch disposed adjacent to the power jack and a power indicator disposed in the host. The controller is electrically connected to the rechargeable battery, the switch and the power indicator. When the switch turns on, the controller detects the remained power in the rechargeable battery and the remained power is indicated by the power indicator. | 03-11-2010 |
20100070220 | Battery Charge Indication Methods, Battery Charge Monitoring Devices, Rechargeable Batteries, and Articles of Manufacture - Battery charge indication methods, battery state of charge monitoring devices, rechargeable batteries, and articles of manufacture are described. According to one aspect, a battery charge indication method includes first determining a state of charge of a battery at a first moment in time using a first method, second determining a state of charge of the battery at a second moment in time using a second method different than the first method, and providing information regarding the state of charge of the battery at the first and second moments in time using information of the first and second determinings. | 03-18-2010 |
20100076704 | METHOD AND SYSTEM FOR DETERMINING A STATE OF CHARGE OF A BATTERY - Methods and systems for determining a state of charge of a battery are provided. A first component of the state of charge is calculated based on a first property of the battery. A second component of the state of charge is calculated based on a second property of the battery. The first component of the state of charge is weighted based on a rate of change of the first property relative to a change of the state of charge. The second component of the state of charge is weighted based on a rate of change of the second property relative to a change of the state of charge. The state of charge is determined based on the first and second weighted components. | 03-25-2010 |
20100076705 | METHOD AND SYSTEM FOR DETERMINING A STATE OF CHARGE OF A BATTERY BASED ON A TRANSIENT RESPONSE - Methods and systems for determining a state of charge of a battery exhibiting a transient response are provided. At least one property of the battery is measured. The state of charge of the battery is determined based on the at least one measured property and a transient response of the battery. | 03-25-2010 |
20100076706 | Stand alone battery monitoring system with alert - A stand alone battery monitoring system coupled to a battery product having a positive pole and a negative pole having a housing, a battery monitoring electronics package contained within the housing, the electronics package having a controller with at least one of an at least one CPU, EEPROM(s), ADC(s), PWM(s), Digital Input(s), and Digital Output(s) and including a portion of memory for storage of data and software. A sensor is coupled to and communicates with the battery product and the controller, measuring at least a battery product voltage and a battery product temperature. Multiple code segments form software on the controller, the battery monitor software includes: an at least one code segment acquiring battery product data for at least a the battery product voltage and the battery product internal temperature from the at least one sensor, an at least one code segment filtering the acquired battery product data into modified battery product data and processing the modified battery product data against stored parameters; an at least one code segment storing the acquired, filtered, modified and compared battery product data in the portion of memory and retaining whole or in part the acquired, filtered, modified and compared battery product data to provide historical battery product data over the course of the life of the battery; an at least one code segment comparing the stored battery product data against threshold levels; and an at least one indicator on a wireless device, wherein if the at least one code segment comparing the stored battery product data against threshold levels determines that data is beyond those levels, it sends an alert wirelessly to a user via the wireless device and the at least one indicator element thereon. | 03-25-2010 |
20100082277 | DISTRIBUTED CAR CHARGING MANAGEMENT SYSTEM AND METHOD - A power control system positioned within a car is provided. In one example, the power control system includes an electrical system, a battery and a power interface coupled to the electrical system, a communication interface, a controller coupled to the electrical system and the communication interface, and a memory coupled to the controller. The memory contains instructions executable by the controller. The instructions include receiving at least one power consumption parameter from a power controller external to the car via the communication interface, actuating the electrical system to access an external power source via the power interface, and directing power from the power source to the battery via the electrical system in order to charge the battery. One or both of actuating the electrical system to access the external power source and an amount of power directed to the battery are based on the power consumption parameter. | 04-01-2010 |
20100088050 | PORTABLE HEAVY LOAD BATTERY TESTING SYSTEM AND METHOD - A portable measurement device and method for measuring a parameter value of a battery. The measurement device connects a large resistive load to a battery being tested. The load is connected to the battery through a first set of kelvin connected clamps and a switch. A microprocessor measures open and closed circuit voltages via a second set of kelvin connected jaws. The microprocessor determines voltage drop curve data based on the measure open and closed circuit voltages. The microprocessor compares the voltage drop curve data to voltage drop profile data for a particular parameter to determine the parameter value for the battery. | 04-08-2010 |
20100088051 | ELECTRONIC DEVICE, BATTERY, AND BATTERY REMAINING CAPACITY DISPLAY METHOD - The present invention provides an electronic device capable of displaying a remaining capacity of a battery | 04-08-2010 |
20100094575 | METHOD FOR DIAGNOSING THE LEAD-ACID BATTERY OF AN AUTOMOBILE AND SYSTEM FOR IMPLEMENTING THE SAME - A method for diagnosing a lead-acid battery of an automotive vehicle includes an experimentation phase in which parameterization of the state of health (SOH) of a lead-acid battery for different values of the state of charge (SOC) of the battery is conducted, and a diagnosis phase in which the battery temperature during the start-up phase of the vehicle is measured and, after the first discharge and over a given range of current variation, the corresponding voltage (U) and current (I) is measured, to deduce therefrom after processing, a value of parameter (γ) of the battery. The state of charge (SOC) of the battery is then determined, and the value representing the state of health is determined, so as to establish a diagnosis of the battery. | 04-15-2010 |
20100100343 | BATTERY MONITOR - A circuit tracks the total amount of time that a host device has spent in its high power “activated” state (an optionally idle and hibernate states) and thereby can estimate the total power consumed by the tag. A remote device can query the state of a counter storing a value representing this time to accurately determine how much of the energy has been consumed by the host device and how much time is left and/or how many more operations can be performed before the host device's battery is exhausted. | 04-22-2010 |
20100106437 | SUBSCRIBER PREMISES SIDE OPTICAL NETWORK UNIT AND OPTICAL TRANSMISSION SYSTEM - To provide a method for detecting a charged state of a battery, for evaluating a deterioration thereof due to each of reaction processes that individually have rates of reactions as different from therebetween, and for performing a detection of the charged state of the battery, a method for detecting the charged state of the battery according to the present invention comprises the steps of: measuring a voltage V | 04-29-2010 |
20100114512 | SYSTEM AND METHOD FOR REMOTE MONITORING OF BATTERY CONDITION - A battery monitoring system may be configured to interface with a first battery monitoring unit and a second battery monitoring unit. The first battery monitoring unit may be configured to output data in a first format. The second battery monitoring unit may be configured to output data in a second format, the second format being different than the first format. The battery monitoring system may include a first polling agent, the first polling agent may be configured to receive data from the first battery monitoring unit and normalize the data into a predetermined data format and store the data in a database. The battery monitoring system may also include a second polling agent. The second polling agent may be configured to receive data from the second battery monitoring unit and normalize the data into the predetermined data format and store the data in a database. Furthermore, the battery monitoring system may be configured to output data associated with the condition of a respective battery unit coupled to at least the first battery monitoring unit and the second battery monitoring unit. | 05-06-2010 |
20100121587 | Health Management of Rechargeable Batteries - Systems and methods for health management of rechargeable batteries are disclosed. In one embodiment, a rechargeable battery system includes a rechargeable battery, and a battery health management unit operatively coupled to the rechargeable battery and including a state of health module configured to estimate a battery health by receiving battery-related data and predicting one or more failure modes. The state of health module may further include a prognostic failure mode component configured to combine at least one flight data variable with at least one model-based prognostic. In alternate embodiments, the battery health management unit may further include a state of life module and a state of charge module. | 05-13-2010 |
20100121588 | Apparatus, system, and method for improving the accuracy of state of health/state of charge battery measurements using data accumulation - A method, system, and computer network for improving the accuracy of state of health/state of charge calculations of a battery product utilizing a battery tracking network communicating with a battery product, providing for the collection and recording of data from the operational environment of the battery product. Transmitting the collected and recorded data from all battery products in the battery tracking network through the battery tracking network to a database system. Storing the data in the database system. Calculating, using a state of charge/state of health algorithm, an estimated state of charge/state of health and comparing the accuracy of the calculation to the data collected. Then adjusting the state of health/state of charge algorithm based on the comparison with the collected data to improve the accuracy of the state of health/state of charge algorithm. The algorithm being adjusted and transmitted to the battery product to aid in calculating and displaying a state of health/state of charge of the battery product based on the adjusted state of health/state of charge algorithm for review by an operator. | 05-13-2010 |
20100121589 | APPARATUS AND METHOD FOR IMPLEMENTING APPLICATION USING SOLAR BATTERY CHARGING OF PORTABLE TERMINAL - An apparatus and method for implementing an application using solar battery charging of a portable terminal are provided. The method includes determining the accumulated charging time of the solar battery, extracting an image corresponding to the determined accumulated charging time of the solar battery from a storage unit, and displaying the extracted image on a display unit. Accordingly, a user may be entertained by plant growing at the same time of charging the solar battery. | 05-13-2010 |
20100121590 | TRAVEL SUPPORT SYSTEM, METHOD, AND PROGRAM - A travel support system for a vehicle includes: a required power amount obtaining unit determining a required power amount in a rechargeable battery required for travel of a predetermined section of a route; a remaining power amount obtaining unit determining a remaining power amount as the amount of power currently remaining in the rechargeable battery; an excess power amount obtaining unit determining an excess power amount as a portion of the remaining power amount in the rechargeable battery in excess of the required power amount; and a communication unit notifying a user of the vehicle of information indicating the availability of an electrical component of the vehicle in traveling the predetermined section, based on the excess power amount. | 05-13-2010 |
20100121591 | METHOD AND APPARATUS THAT DETECTS STATE OF CHARGE (SOC) OF A BATTERY - A method and apparatus for estimating a state of charge of a battery. The method may include generating one or more curves which expresses the a priori relationship between a first parameter and a state of charge (SOC) of a battery over a region of interest, taking a derivative of the generated one or more curves with respect to state of charge to generate a derived parameter with the SOC of the battery over the region of interest, transforming a combination of the generated one or more curves into one or more supplemental curves which express the a priori relationship between a second parameter with one or more of current (I) polarization current (Ip) and open circuit voltage (OCV), the voltage slope with respect to SOC (dOCV/dSOC), and any combination of (I, Ip, OCV and dOCV/dSOC), measuring a voltage and a current of the battery during a period of time to create a set of voltage and current data, processing the set of voltage and current data to create a set of processed data, combining one or more generated curves with the processed data to generate processed data as a function of SOC, regressing the process data function at multiple SOCs over the region of interest with respect to an equation which is representative of the battery to obtain values for parameters not associated with SOC and to generate a curve that evaluates each SOC for accuracy and chance likelihood of fit, selecting the SOC that minimizes both the error and chance occurrence, and outputting the selected SOC for display to the user on a user interface. | 05-13-2010 |
20100121592 | Method for Determining the Actual Amount of Energy Available in an Energy Storage Module - The amount of energy actually available in an energy storage module having a plurality of individual storage elements connected in series is determined. An upper and/or a lower limit voltage for the energy storage module is determined dynamically. During a charging operation of the energy storage module, in the event that a maximally permissible upper cell voltage is reached on at least one storage cell, the upper limit voltage of the energy storage module is determined by summing all cell voltages of all storage elements existing at that point-in-time. During a discharging operation, if a minimally permissible lower cell voltage is reached on at least one storage element, the lower limit voltage is determined by summing all cell voltages existing at that point-in-time. The actually available amount of energy is computed as a function of the determined limit voltage or voltages and of the determined actual storage capacity. | 05-13-2010 |
20100131217 | VEHICLE POWER SUPPLY DEVICE AND METHOD OF ESTIMATING STATE OF CHARGE OF POWER STORAGE DEVICE IN VEHICLE POWER SUPPLY DEVICE - A vehicle power supply device includes a battery (B | 05-27-2010 |
20100131218 | Method of Performance Analysis for VRLA Battery - This invention discloses a method of performance analysis for VRLA battery which applies the method of using the float voltage dispersion ratio of the battery to evaluate the battery performance from a new perspective, and it is an online real-time test which applies several ways to evaluate the performance of the VRLA battery. According to the relevance between the dispersion of the float charge voltage of the battery and its performance, the method gets the result of the battery performance through calculating the battery float charge voltage dispersion ratio and making it relevant with the battery performance. It has small workload, convenient operation and no danger to the system when doing online testing. It also won't affect the cycle life of the VRLA battery. | 05-27-2010 |
20100138175 | Method for accurate battery run time estimation utilizing load-condition voltage - One disclosed embodiment is a method for accurately estimating a run time of a battery utilized by an electronic device. The method comprises determining a starting battery capacity utilizing an open-circuit voltage of the battery, determining a battery capacity decline rate utilizing a load-condition voltage of the battery, and determining a low-voltage-alarm battery capacity during an active operation of the electronic device. The method further comprises utilizing the starting battery capacity, the battery capacity decline rate, and the low-voltage-alarm battery capacity to estimate the run time of the battery. The run time estimate is determined, in one embodiment, by dividing the difference of the starting battery capacity and the low-voltage-alarm battery capacity by the battery capacity decline rate. One embodiment utilizes an open-circuit voltage lookup table, a load-condition voltage lookup table, and a low-voltage-alarm lookup table that are configured for use with a certain type of battery. | 06-03-2010 |
20100138176 | System for accurate battery run time estimation utilizing voltage capture and coulomb counting - A disclosed embodiment is a low-cost, low-power system for run time estimation of a battery utilized by an electronic device. The system comprises a voltage capture circuit configured to measure a voltage of the battery and a coulomb counting circuit configured to measure a charge of the battery. Additionally, the voltage capture circuit is configured to measure an open-circuit voltage of the battery during a sleep mode, or battery voltage during an operation mode, and the coulomb counting circuit is configured to measure a discharge of the battery during the sleep mode, or a change or discharge of battery during an operation mode. The voltage capture circuit comprises a sample-and-hold circuit and an analog-to-digital converter, while the coulomb counting circuit comprises a sigma-delta converter, a comb filter, and a digital accumulator. The voltage capture circuit and the coulomb counting circuit are coupled through a power management unit to a microprocessor configured to estimate battery run time in the electronic device. | 06-03-2010 |
20100138177 | Method for accurate battery run time estimation utilizing adaptive offset values - A disclosed method comprises adaptive offset values in an open-circuit voltage lookup table, a temperature lookup table, and an age lookup table, and then determining a present charge of the battery utilizing an open-circuit voltage of the battery and a temperature of the battery, determining a low-voltage-alarm charge of the battery utilizing a discharge current of the battery and an age of the battery, and utilizing the present charge and the low-voltage-alarm charge to estimate the run time of the battery. Utilizing the open-circuit voltage, temperature, and age comprises looking up a present battery capacity, temperature coefficient, and ageing coefficient in lookup tables, and adjusting the present battery capacity, temperature coefficient, and ageing coefficient by the respective offset values adaptive to the battery. Estimating the run time of the battery comprises, in one embodiment, dividing the difference of the present charge and the low-voltage-alarm charge by the discharge current. | 06-03-2010 |
20100138178 | Battery capacity estimating method and apparatus - A method for accurately estimating battery capacity based on a weighting function is provided. The disclosed system monitors battery current and uses the monitored battery current to calculate the state of charge (SOCbyAh) of the battery. The system also measures the open circuit voltage (OCV) of the battery when the system is at rest, rest being determined by achieving a current of less than a preset current value for a period of time greater than a preset time period. The state of charge of the battery is calculated from the OCV (SOCbyOCV). The weighting function is based on ΔSOCbyAh and ΔSOCbyOCV, where ΔSOCbyAh is equal to SOCbyAh | 06-03-2010 |
20100138179 | DIAGNOSTIC SYSTEM FOR MONITORING INTERNAL CONDITIONS INSIDE A FUEL CELL - A diagnostic system for monitoring internal conditions inside a fuel cell includes a pair of bipolar plates, a gas diffusion layer, a central controller, and three or more sensors. Each bipolar plate contains a fuel gas channel. The central controller includes a computing unit and a display. Each sensor has a resistor portion, a capacitor portion, a common lead, a resistor line, and a capacitor line for detecting a voltage value, a resistance value, and a capacity value. The display shows out physical information detected by these sensors for diagnosing the fuel cell. The physical information includes voltage, resistance, capacity, temperature, humidity, flow velocity, and flow rate. In which, it can detect various physical information inside the fuel cell. It can monitor the internal conditions continuously and directly. Plus, it can prolong the product life of the fuel cell. | 06-03-2010 |
20100145643 | USER-CONTROLLED APPLICATION-BASED POWER MANAGEMENT - A user-controlled application-based power management function is provided for a battery-operated device. In general, for each of a number of applications of the battery-operated device, a power management function enables a user of the battery-operated device to provide a usage parameter for the application defining a desired amount of usage of the application for each of one or more tasks. For each task, the power management function determines an estimated amount of battery life that is sufficient to provide the desired amount of usage of the application for the task and determines whether the estimated amount of battery life is available. If the estimated amount of battery life is available, the power management function allocates an amount of battery life corresponding to the estimated amount of battery life to the application for the task. | 06-10-2010 |
20100145644 | Method and System for Estimating Life-Expectancy of Secondary Battery - It is an object of the present invention to provide a technique for specifically estimating a life expectancy of a secondary battery. The technique performs the steps of: determining an accumulating portion resistance of the secondary battery from an internal resistance thereof; determining an accumulating portion resistance increase coefficient under operating conditions of the secondary battery; and estimating a life expectancy of the secondary battery from the accumulating portion resistance and the accumulating portion resistance increase coefficient. | 06-10-2010 |
20100153037 | Battery-capacity supervisory control device and method thereof - A battery-capacity supervisory control device includes a DC current/DC voltage detecting loop, a microprocessor and a display unit. The DC current/DC voltage detecting loop is connected between a battery and a power inverter for detecting a first voltage value before the battery electrically discharges, and a second voltage value as well as an output current value of the battery after electrically discharging for a time unit of the battery, to calculate the available capacity of the battery and to calculate the available time of the battery under loading according to the available capacity of the battery through the microprocessor. The display simultaneously displays the available time of the battery under loading and the available capacity of the battery. Therefore, a user effectively supervises and assures the battery is in the usable state. | 06-17-2010 |
20100153038 | STATE ESTIMATING DEVICE OF SECONDARY BATTERY - A battery state estimating unit ( | 06-17-2010 |
20100153039 | Apparatus and Method for Testing a Power Source - A method and apparatus for communicating a battery information to a remote device or database. The battery tester and/or charger can communicate with a wired or wireless connection to the remote device. Battery indentifying information, test results and warranty information can be communicated to the remote device or database. | 06-17-2010 |
20100161257 | Battery wireless link - An apparatus and method for wireless communication with a battery. A sensed condition associated with the battery is provided to a microcontroller which relays this information to a wireless module for communication with a host device or remote receiver. | 06-24-2010 |
20100161258 | Measurement apparatus and system capable of displaying battery power - A measurement apparatus capable of displaying battery power includes a battery cell, a measurement chip and an information display unit. The battery cell stores the battery power. The measurement chip further includes an acquiring unit, a converting unit, a processing unit and a display driving unit. The acquiring unit acquires the battery power from the battery cell to generate a first power signal. The converting unit converts the first power signal into a second power signal. The processing unit analyzes and computes the second power signal to provide battery power information. The display driving unit drives the information display unit. The battery power information can selectively represent the battery power corresponding to the battery cell to a user through the display driving unit. | 06-24-2010 |
20100161259 | AGING STATUS DIAGNOSTIC APPARATUS FOR POWER CONVERSION SYSTEM, AND METHOD THEIR OF - The present invention relates to an apparatus capable of diagnosing the aging state of a power conversion system at ordinary times and its diagnosing method to ensure the reliability of a power conversion system. The apparatus includes a current sensing means for detecting the output current of a inverter switching module or an electrolytic capacitor, and measurement and diagnosis means for extracting elements related to the aging status of the power conversion system by receiving the output current waveform of the inverter switching module and magnitude of each harmonic or an impedance voltage signal of the electrolytic capacitor. Furthermore, it is preferable that the apparatus further includes a measurement current generation means for generating measurement current to be supplied to the electrolytic capacitor. By analyzing an average value or the magnitude of harmonics by FFT analysis of the output current waveform of the inverter switching module and measuring an ESR value or a loss angle tan δ of a DC bus of the power conversion system, the present invention is able to monitor and diagnose the abnormal state attributable to the aging or degradation of the power conversion system in advance. | 06-24-2010 |
20100161260 | SYNCHRONIZED DATA SAMPLING SYSTEMS AND METHODS - A battery management system with synchronized data sampling for a battery pack including multiple battery cells is disclosed. The battery management system includes a plurality of local monitors coupled to a plurality of battery cells and operable for sampling status information for the battery cells. The battery management system further includes a central controller coupled to the local monitors and operable for broadcasting a sample command to the local monitor synchronously, wherein the local monitors start to sample the status information for the battery cells in response to the sample command. | 06-24-2010 |
20100169033 | State Of Charge Determination - A method, device and computer program product for determining the state of charge of at least one battery as well as to a power compensator for an electric power transmission line including such a device. The device includes an internal states prediction unit and a state of charge determining unit. The internal states prediction unit makes an internal states prediction of a battery based on a model for the battery, where each internal state is related to the charge distribution in the battery, adjusts the internal states prediction with measured properties of the battery and applies the adjusted internal states prediction in the making of following internal state predictions. The state of charge determining unit provides the estimated state of charge (SOC) as a function of the predicted internal states. The invention allows the provision of improved state of charge estimates. | 07-01-2010 |
20100174498 | Battery monitoring algorithms for vehicles - A collection of computer software algorithms that ascertain the operational state of a vehicle's starter battery. | 07-08-2010 |
20100174499 | APPARATUS FOR ESTIMATING OPEN CIRCUIT VOLTAGE OF BATTERY, APPARATUS FOR ESTIMATING STATE OF CHARGE OF BATTERY, AND METHOD FOR CONTROLLING THE SAME - An apparatus for estimating an OCV of a battery includes a voltage sensing unit for measuring a battery output voltage; a temperature sensing unit for measuring a battery temperature; a data storing unit for periodically receiving the battery output voltage and temperature data from the sensing units and storing the data in a memory; an OCV variation estimating unit for calculating an OCV variation from a varying pattern of battery output voltages measured in the past and at the present, stored in the memory, by applying a mathematical model defining a correlation between the varying pattern and the OCV variation, and estimating an OCV at a current stage by reflecting a correction factor corresponding to the battery temperature on the calculated OCV variation; and an OCV estimating unit for estimating an OCV at the current stage by reflecting the estimated OCV variation on the OCV estimated at a last stage. | 07-08-2010 |
20100174500 | METHOD FOR CALCULATING POWER CAPABILITY OF BATTERY PACKS USING ADVANCED CELL MODEL PREDICTIVE TECHNIQUES - The present invention relates to a method and an apparatus for estimating discharge and charge power of battery applications, including battery packs used in Hybrid Electric Vehicles (HEV) and Electric Vehicles (EV). One charge/discharge power estimating method incorporates voltage, state-of-charge (SOC), power, and current design constraints and works for a user-specified prediction time horizon Δt. At least two cell models are used in calculating maximum charge/discharge power based on voltage limits. The first is a simple cell model that uses a Taylor-series expansion to linearize the equation involved. The second is a more complex and accurate model that models cell dynamics in discrete-time state-space form. The cell model can incorporate a inputs such as temperature, resistance, capacity, etc. One advantage of using model-based approach is that the same model may be used in both Kalman-filtering to produce the SOC and the estimation of maximum charge/discharge current based on voltage limits. | 07-08-2010 |
20100174501 | Method, Apparatus And Computer Program For Conserving Battery Charge - A method comprising determining a remaining electrical charge in a battery of a apparatus using a charge conserving system of the apparatus. The apparatus includes a plurality of hardware and/or software components. The charge conserving system is capable of defining one or a number of charge thresholds. The or each charge threshold corresponds to a quantity of remaining electrical charge in the battery. The method also includes broadcasting a charge status notification, using the charge conserving system, to at least one of a predefined group of the hardware and/or software components when the remaining electrical charge in the battery falls below the or each charge threshold. | 07-08-2010 |
20100174502 | SYSTEM FOR MONITORING EXPOSURE TO VIBRATION - A portable instrument, described in GB2413189, is held between the fingers of one hand and measures the cumulative exposure of a worker to vibration. However, this instrument will not comfortably fit the hands of all workers There is also an administrative problem in administering the allocation of different instruments to respective workers at the beginning of a shift, recording the measurements at the end of a shift and ensuring that instruments are adequately charged. The problem is solved by using a docking station ( | 07-08-2010 |
20100185405 | Battery Control Device - A plurality of resistance value tables of a battery group with respect to temperature and SOC of the assembled battery, which are measured in advance when currents of different change patterns flow in the assembled battery, are stored. A resistance value for the assembled battery is calculated, based upon its voltage and current. From among the plurality of resistance value tables, a resistance value table is selected so that it corresponds to the change pattern of the current flowing in the assembled battery when the voltage and the current of the assembled battery were measured, and a resistance value is searched for from that resistance value table corresponding to the temperature and the SOC of the assembled battery. Then the calculated resistance value and the one from the table are compared to determine the life of the assembled battery. | 07-22-2010 |
20100191490 | METHOD AND DEVICE FOR DETERMINING THE STATE OF CHARGE OF A BATTERY - For medical implants it is not only important to have a battery powering the implant with a long run-time, but to know exactly at any point in time how long the remaining run-time is. On the other hand the implant together with its battery shall be as user-friendly as possible requiring no or hardly any interaction with the device except for recharging of the battery. To better address these concerns, a method for determining the state of charge of a battery is suggested comprising the steps: charging the battery, discharging of the battery, predicting the state of charge of the battery using a recharge prediction unit, wherein the recharge prediction unit is disconnected from the battery during the discharging of the battery. The prediction of the state of charge of the battery during the discharge of the battery, i.e. during powering of a device connected to the battery, without carrying out any measurements during the discharging of the battery, enables a local separation of the battery or the implant powered by the battery and the recharge prediction unit during the discharge cycle of the battery. | 07-29-2010 |
20100191491 | SYSTEM, METHOD, AND ARTICLE OF MANUFACTURE FOR DETERMINING AN ESTIMATED BATTERY PARAMETER VECTOR - A system, a method, and an article of manufacture for determining an estimated battery parameter vector indicative of a parameter of a battery are provided. The method determines a first estimated battery parameter vector indicative of a parameter of the battery at a first predetermined time based on a plurality of predicted battery parameter vectors, a plurality of predicted battery output vectors, and a first battery output vector. | 07-29-2010 |
20100198536 | BATTERY HEALTH ASSESSMENT ESTIMATOR - A battery state of health estimator and similar method, system and computer product is disclosed providing for a estimate of a state of health (SOH) of one or more batteries, comprising, estimating a sampling of internal resistances of the one or more batteries, generating a time history of the internal resistance over a predetermined amount of time, generating a cumulative internal resistance histogram from the time history, calculated a final estimate of internal resistance of said one or more batteries which represents the calculated SOH of said one or more batteries and comparing the calculated SOH to a predetermined critical resistance threshold. If the calculated SOH is less than the predetermined critical resistance threshold, the battery is in no worse than a “Blue Monday” condition, and if the calculated SOH is greater than the critical resistance threshold, then the one or more batteries has failed. | 08-05-2010 |
20100198537 | ELECTRONIC DEVICE AND METHOD FOR CALCULATING REMAINING USABLE TIME OF BATTERY - A video camera | 08-05-2010 |
20100211340 | SYSTEM AND METHOD FOR MANAGING ELECTRIC VEHICLES - A system and method for managing a plurality of electric vehicles with a fleet management portal is described herein. In one embodiment, a machine implemented method for managing one or more fleets of electric vehicles includes monitoring one or more fleets of electric vehicles using a fleet management portal associated with a server. Next, the method includes monitoring a plurality of charge transfer devices using the fleet management portal. Next, the method includes receiving charging information from the charge transfer devices. Next, the method includes determining a charging status for each electric vehicle based on the charging information. Next, the method includes generating one or more reports having the charging status for each electric vehicle. | 08-19-2010 |
20100211341 | BATTERY PACK AND DETECTION METHOD - A battery pack includes: a plurality of batteries; a detection section to measure a voltage of each of the plurality of batteries to obtain a voltage variation of each of the plurality of batteries at different lapse times and compare the obtained voltage variations to thus detect whether at least one of the plurality of batteries has been replaced; and a controller to disable, when a result of the detection by the detection section indicates that at least one of the plurality of batteries has been replaced, a use of the plurality of batteries. | 08-19-2010 |
20100217551 | Embedded microprocessor system for vehicular batteries - A computer system embedded inside a starter or deep cycle battery that includes manufacturing data, the means to monitor battery pressure, the means to monitor electrolyte level and the means to transfer information to an external device. | 08-26-2010 |
20100217552 | Battery Management System for Measuring Remaining Charges in a Battery Packet with Multi-Cells - A battery management system for measuring remaining charges in a battery packet with multi-cells is disclosed. The battery comprises electric property and non-electric property measuring modules, multi-cells, a slave communication protocol controller, and a battery protective circuit. The portable device comprises an embedded controller and a charge gauge module and a master communication protocol controller. The parameters demanded for calculating the remaining charges of the multi-cells are measured by the electric property and non-electric property measurement modules and transferred through the SMBus interface to the embedded controller and the charge gauge module. Therefore, the battery management system can manage the remaining charges of every cell in the multi-cells without a microprocessor in the battery packet. | 08-26-2010 |
20100235121 | METHODS AND APPARATUS FOR MODELING, SIMULATING, ESTIMATING AND CONTROLLING POWER CONSUMPTION IN BATTERY-OPERATED DEVICES - A computer-based processing system simulates and estimates power consumption (i.e., battery life) in a battery-operated based on a set of operating parameters which is intended to control operation of the battery-operated device in a first operating mode. In the event the estimated/projected battery life fails to meet a predetermined desired battery life (i.e., operational life of the device), one or more operating parameters may be modified and power consumption is again calculated. Several iterations may occur. When a desired battery life is achieved, the battery-operated device is configured with a final set of operating parameters and, when deployed the device operates in accordance with the configured parameters. | 09-16-2010 |
20100241376 | CONTROL APPARATUS AND CONTROL METHOD FOR SECONDARY BATTERY - An ECU calculates an evaluation value decrease amount D(−) in response to a reduction of unevenness of lithium ion concentration caused by diffusion of lithium ions resulting from a lapse of one cycle time ΔT, calculates an evaluation value increase amount D(+) in response to an increase of the unevenness of the lithium ion concentration caused by discharging during a lapse of one cycle time ΔT, and calculates a present value D(N) of a battery deterioration evaluation value D due to high-rate discharging, as a previous value D(N−1)−evaluation value decrease amount D(−)+evaluation value increase amount D(+). If battery deterioration evaluation value D exceeds a predetermined target value E, the ECU sets a discharging power limit value WOUT that is a limit value of electric power to be discharged from a battery, to a value lower than a maximum value W(MAX). | 09-23-2010 |
20100241377 | BATTERY MANAGEMENT SYSTEM AND CHARGER - A battery management system includes a battery attached with an identification ID; and a plurality of chargers for reading the identification ID attached to the battery, the chargers associating the read identification ID with information indicative of an end of charging the battery and sending the information, the chargers charging the battery. The battery management system also includes a management server connected to each of the chargers for receiving the information indicative of the end of charging the battery associated with the identification ID and sent from each of the chargers. The management server cumulatively sums, as the number of chargings, the number of receptions of the information indicative of the end of charging the battery for each identification ID, and the management server associates the identification ID with the cumulatively summed number of chargings and allows the number of chargings to be recorded. | 09-23-2010 |
20100250162 | BATTERY LIFE ESTIMATION - A method of estimating battery lifetime includes monitoring a charge characteristic of a battery during a first time period, monitoring an operating condition of the battery, determining a first battery life value for the first time period based on the operating condition of the battery, the charge characteristic, and a duration of the first time period, determining an overall battery life value using the first battery life value and a second battery life value for a second time period, and estimating a remaining battery lifetime for the battery based on the overall battery life value. | 09-30-2010 |
20100250163 | CONTROL DEVICE OF SECONDARY BATTERY AND MAP CORRECTION METHOD - A two-dimensional map for calculating an SOC of a secondary battery is corrected. A battery ECU obtains a voltage index of a secondary battery. The voltage index is, for example, a no-load voltage of the secondary battery. When an amount of change of the calculated no-load voltage from an initial state falls outside a predefined range, the battery ECU corrects the two-dimensional map of initial state which is stored in advance in a storage unit using data obtained by statistically processing a plurality of two-dimensional maps obtained from a plurality of vehicles. | 09-30-2010 |
20100250164 | Battery End of Life Determination - A method for determining an end of life of a battery includes determining a discharge capacity of the battery at a given moment in time, determining a discharge capacity at a functional endpoint of the battery, and determining a fuel remaining in the battery at the given moment in time as a function of both the discharge capacity at the given moment in time and the discharge capacity of the battery at the functional endpoint of the battery. The determined fuel remaining is indicative of an end of life of the battery. | 09-30-2010 |
20100262392 | SYSTEM AND METHOD FOR IMPLEMENTING DATA STORAGE MODES IN A DATA STORAGE SYSTEM - The present disclosure provides a data storage system configured to implement data storage modes based on a battery health indicator. In one embodiment, a data storage system is provided and comprises an input interface configured to receive data and the battery health indicator. In one example, the data and battery health indicator is received from a host system through the input interface. The data storage system also includes at least one data storage device and a controller configured to store data in the at least one data storage device. The controller is configured to implement a data storage mode based on the battery health indicator. | 10-14-2010 |
20100268492 | Battery cell voltage measurement device - A battery cell voltage measurement device for a battery pack constructed by battery cells (E | 10-21-2010 |
20100268493 | Battery management system and driving method for the same - Disclosed are a battery management system that uses a source file for sensing of the cell voltages of battery cells by changing only declaration information of a header file using an MCU even when the number of battery cells is changed, and a driving method for the same. The battery management system is connected to a battery including at least one battery pack in which a plurality of battery cells are contained. includes a sensor including an AD converter connected to the battery cells, the sensor configured to sense cell voltages of the battery cells, a storage configured to store source data generated using an input external signal, and a controller configured to generate a source signal corresponding to the source data and forward the source signal to the sensor, the sensor being configured to sense the cell voltages of the battery cells according to the source signal. | 10-21-2010 |
20100268494 | Automatic Discharge Of A Failed Battery - A system comprises a battery cell, control logic, and a battery drain latch circuit. The control logic is coupled to the battery cell and determines whether a battery pack has experienced a failure condition. The battery drain latch circuit is activated by the control logic, upon detection of a failure condition, to cause the battery cell to drain energy therefrom. | 10-21-2010 |
20100268495 | POWER SUPPLY MONITORING FOR AN IMPLANTABLE DEVICE - A method and an apparatus for projecting an end of service (EOS) and/or an elective replacement indication (ERI) of a component in an implantable device is provided. The method comprises measuring the measured voltage of the energy storage device, and determining whether the measured voltage is less than a transition voltage. When the measured voltage is less than the transition voltage, determining a time period remaining until an end of service of the energy storage device is based upon a function of the measured voltage. When the measured voltage is greater than or equal to the transition voltage, determining a time period remaining until an end of service of the energy storage device is based upon a function of the total charge depleted. The transition voltage is a voltage associated with the transition point of non-linearity in the battery voltage depletion curve. | 10-21-2010 |
20100274507 | Method and Device for Improving Battery Life of a Mobile Computing Device - A method and device for extending the useful life of an energy storage device, for a mobile computing device is described. The method ( | 10-28-2010 |
20100274508 | Mobile Electronic Device and Method for Controlling the Same - It is possible to provide a mobile electronic device which can accurately and clearly display a cell service life and a method for controlling the device. | 10-28-2010 |
20100274509 | Portable Electronic Device and Method for Controlling the Same - Provided are a portable electronic device which accurately judges service life of a battery even when the battery is replaced, and a method for controlling such portable electronic device. A control block ( | 10-28-2010 |
20100280776 | Mobile Electronic Device and Method for Controlling the Same - It is possible to provide a mobile electronic device which can accurately judge the service life of a cell even when the cell is replaced. Provided is also a method for controlling the mobile electronic device. A control block ( | 11-04-2010 |
20100280777 | Method for Measuring SOC of a Battery in a Battery Management System and the Apparatus Thereof - According to an embodiment of this invention, a method for measuring SOC (State Of Charge) of a battery comprises the steps of: obtaining current data, voltage data and temperature by measuring the current, the voltage and the temperature of a battery; calculating SOCi (State Of Charge based on current) by accumulating the current data; calculating open circuit voltage by using an equivalent circuit model which simply presents the current data, the voltage data and the battery through an electric circuit; calculating SOCv (State Of Charge based on voltage) by using the temperature data and the open circuit voltage; and choosing at least one of the SOCi and the SOCv as SOC of the battery by using the SOCi and the SOCv based on the judgment on the current state of the battery for a certain time interval. | 11-04-2010 |
20100286938 | BATTERY PACK CONTROL APPARATUS - A battery pack control apparatus is provided with first, second and third monitoring devices, a battery pack control device, first and second communication devices, and a first electric power consuming device. The monitoring devices are connected to the single battery cells of a battery pack to monitor a state of the single battery cells. The battery pack control device communicates data related with the third monitoring device through the first communication device having an electric insulating quality and with the first monitoring device through a second communication device having an electric insulating quality. The second monitoring device communicates data with the first and third monitoring devices. The first electric power consuming device consumes an amount of electric power at a single battery cell connected to the second monitoring device. The amount of electric power corresponds to a communication occurring at the second communication device. | 11-11-2010 |
20100292942 | Embedded algorithms for vehicular batteries - Computer algorithms design to execute on a computer system embedded inside a starter or deep cycle battery that calculate optimal charge rates and detect internal alarm conditions and make this information externally available. | 11-18-2010 |
20100324846 | METHOD AND SYSTEM FOR ESTIMATING BATTERY LIFE - Methods and systems for estimating remaining life of an automotive propulsion battery are provided. A total usable capacity of the battery is calculated based on cycling the battery. A first component of degradation is calculated based on driving throughput of the battery. A second component of degradation is calculated based on aging of the battery. The total degradation is calculated based on the sum of the first component and the second component of degradation. | 12-23-2010 |
20100324847 | BATTERY GAS-GAUGE CIRCUIT AND METHOD THEREOF - A battery gas-gauge circuit and method thereof are provided. The battery gas-gauge circuit includes a sensing resistor, a voltage-to-current conversion circuit, a subtractor, a comparator, a logic circuit and a power-management unit. In the voltage-to-current conversion circuit, two conversion circuits thereof obtain two voltage signals according to the two ends of the sensing resistor, respectively, and convert the two voltage signals to two current signals correspondingly. The subtractor generates a current difference signal according to the two current signals. The comparator outputs a comparison signal according to the current difference signal and a current dead-band. The logic circuit outputs a logic signal according to the comparison signal and a predetermined signal. The power-management unit determines battery power according to the logic signal. | 12-23-2010 |
20100324848 | APPARATUS AND METHOD FOR TESTING STATE OF CHARGE IN BATTERY - Disclosed is an apparatus and method for estimating a state of charge (SOC) in a battery, in which the battery SOC is estimated using a fusion type soft computing algorithm, thereby accurately estimating the battery SOC in a high C-rate environment. The apparatus includes a detector unit for detecting current, voltage and temperature of a battery cell; and soft computing unit for outputting a battery SOC estimation value of processing the current, the voltage and the temperature detected by the detector unit using a radial function based on a neural network algorithm. Especially, the soft computing unit combines the neural network algorithm with any one of a fuzzy algorithm, a genetic algorithm (GA), a cellular automata (CA) algorithm, an immune system algorithm, and a rough-set algorithm, and thereby adaptively updates the parameters of the neural network algorithm. | 12-23-2010 |
20100332165 | Method of Estimating Pulse Response Using an Impedance Spectrum - Electrochemical Impedance Spectrum (EIS) data are used directly to predict the pulse performance of an energy storage device. The impedance spectrum of the EIS is obtained in-situ using pre-existing techniques. A simulation waveform is configured such that the period of the pulse is greater than or equal to the lowest frequency of the impedance measurement. If the pulse is assumed to be periodic for analysis purposes, the complex Fourier series coefficients can be obtained. The number of harmonic constituents are selected so as to appropriately resolve the response, but the maximum frequency should be less than or equal to the highest frequency of the impedance measurement. In some cases, the measured frequencies of the impedance spectrum do not match the corresponding harmonic components of the simulated pulse wave. This is resolved by estimating the impedance measurements at the desired frequencies using linear interpolation, cubic spline fits, or other comparable methods. Using a current pulse as an example, the Fourier coefficients of the pulse are multiplied by the impedance spectrum at the corresponding frequency to obtain the Fourier coefficients of the voltage response to the desired pulse. The Fourier coefficients of the response are then summed reassemble to obtain the overall time domain estimate of the voltage using the Fourier series analysis. Thus, the response of an energy storage device to an anticipated or desired pulse can be estimated using low-level, charge neutral impedance measurements combined with Fourier series analysis. | 12-30-2010 |
20100332166 | INFORMATION PROCESSING APPARATUS AND BATTERY DEGRADATION DETECTION METHOD - According to one embodiment, an information processing apparatus is configured to be powered by a battery. The apparatus includes a charging circuit, a charging current measuring module, a charging time measuring module, and a calculation module. The charging circuit charges the battery by using power from an external power supply. The charging current measuring module measures a charging current supplied to the battery from the charging circuit. The charging time measuring module measures a time during which the battery is charged by the charging current. The calculation module calculates a charging capacity from the measured charging current and the measured charging time, and compares an accumulated charging capacity, which is obtained by cumulatively adding the calculated charging capacity to a previously calculated charging capacity, with a reference value, in order to detect degradation of the battery. | 12-30-2010 |
20110004427 | ACCURACY OF BATTERY MONITOR PARTS - Embodiments of the present invention provide a monitoring system that may include a plurality of monitors. Each may have a plurality of input pairs coupled to respective components of a component stack, wherein adjacent monitors each have an input pair coupled to a common component. Embodiments of the present invention provide an integrated circuit that may include a plurality of detectors to locally measure a first group of channels. The integrated circuit may also include a receiver operable to receive a measurement of at least one channel of the first group of channels, and a controller to calculate a correction factor based on the received measurement and a local measurement of the at least one channel and to correct all first group measurements with the correction factor. | 01-06-2011 |
20110004428 | SERVICE LIFE ESTIMATION METHOD FOR LEAD STORAGE BATTERY AND POWER SOURCE SYSTEM - An estimation unit that estimates an estimated remaining service life of the lead storage battery implements: a storage step of storing an integral discharge threshold A that is a reference for determination of a service life of the lead storage battery under a standard condition with predetermined values of a surface temperature, a charge current, and a discharge current of the lead storage battery; a calculation step of calculating an integral discharged capacity B that represents an accumulated value of a discharged capacity of the lead storage battery under the actual conditions such as giving deterioration that same order as that occurring when the lead storage battery is repeatedly discharged under the standard conditions; a subtraction step of obtaining a differential electric quantity A−B by subtracting the integral discharged capacity B from the integral discharge threshold A; and an estimation step of estimating the estimated remaining service life of the lead storage battery by using the differential electric quantity. | 01-06-2011 |
20110004429 | MONITOR OF ASSEMBLED BATTERY - A monitor ( | 01-06-2011 |
20110029265 | METHOD AND DEVICE FOR PREDICTING A RECHARGEABLE BATTERY'S LIFETIME - A method is disclosed for determining an end of life for a rechargeable battery comprising the steps of using the battery ( | 02-03-2011 |
20110040505 | Testing System and Method for Testing Charging Circuit - A testing system for testing a charging circuit includes a setting unit, a virtual battery, and a control device. The setting unit is utilized for setting a charging configuration of the charging circuit according to a battery status message, to make the charging circuit to output a charging power accordingly. The virtual battery includes a battery status generating unit for generating the battery status message according to a first control signal, and a load unit for generating a load for the charging circuit according to a second control signal, so as to receive the charging power outputted from the charging circuit, and recording variation of the charging power. The control device is utilized for generating the first control signal and the second control signal, and storing information recorded by the load unit as a digital data for evaluate the charging circuit. | 02-17-2011 |
20110046905 | BATTERY MANAGEMENT SYSTEM - A battery management system for monitoring a plurality of battery cells, including a plurality of electronic boards, each of the electronic boards being mounted on a respective one of the battery cells, wherein the electronic boards are connected in series to a central processor by a twisted wire pair, the twisted wire pair being connected to each electronic board by a coupling, wherein the coupling is open during normal use and is closed to connect the wires of the twisted wire pair in response to sensing a predetermined event in relation to the respective battery cell such that the central processor is able to determine from a level of voltage returned through the twisted wire pair the number of battery cells at which the predetermined event has been sensed. | 02-24-2011 |
20110054815 | PROFESSIONAL DIAGNOSIS METHOD OF BATTERY PERFORMANCE ANALYSIS - The present invention discloses a professional diagnosis method of battery performance analysis, Through the overall evaluation of experiential data library, several parameters about the battery are input into the artificial neural network, outputting capacity prediction and service life prediction of each battery, etc. and giving useful advices for each battery. Therefore the result is much more in conformity with the real condition of the battery. Besides, it designs an adaptive learning function of the abovementioned artificial neural network. This invention effectively avoids the defect of evaluating the VRLA battery performance at single moment, from single perspective and by single method, and it does the real-time monitoring and evaluating for the performance of the battery during VRLA battery working period, which is easy to operate, and avoids checking discharge test to the battery so that it doesn't affect the cycle life of the VRLA battery. | 03-03-2011 |
20110054816 | METHOD OF ESTIMATING THE NON-MEASURABLE CHARACTERISTICS OF AN ELECTROCHEMICAL SYSTEM - The present invention relates to a method of estimating the internal state of an electrochemical system by a zero-dimensional (0D) electrochemical mathematical model for estimating the characteristics of a battery that are not directly measurable during operation thereof. For applications relating to hybrid and electric vehicles, the most significant internal characteristics are the state of charge (SoC), the state of health (SoH) and the thermal state (T). Reconstruction of the internal characteristics is achieved using a mathematical model of the battery. The method can be used with the operation of the battery itself (real time) with a concentrated-parameter (0D) or off-line mathematical model, for calibration, an optimization or a validation of management and estimation strategies. The method allows simulation of the thermal and electrical behavior of a battery. The method according to the invention can also be useful for battery dimensioning and for optimization of the energy and thermal management strategies as a function of the desired application. | 03-03-2011 |
20110054817 | Battery Run-Time Prediction System - Embodiments of the present disclosure include a computer implemented method and system for sampling battery runtime-related information from the batteries to provide an ongoing estimate of the remaining runtime left at a remote location based, at least in part, on a combination of computing techniques and statistical and mathematical models. | 03-03-2011 |
20110060538 | Estimation of State-Of-Health in Batteries - Methods and apparatuses for estimation of a state-of-health in a battery are disclosed. An example method comprises: determining if a terminal voltage of the chemical battery differs from a calculated terminal voltage; in response to determining that the terminal voltage of the chemical battery differs from the calculated terminal voltage, calculating a range of voltages by taking the convolution of a terminal current of the chemical battery with a range of impulse responses from a look up table of impulse responses corresponding to different states-of-health; comparing the terminal voltage of the chemical battery with the range of calculated voltages to determine a second impulse response that corresponds to the case where the terminal voltage matches the calculated voltage; and using the look up table of impulse responses corresponding to different states-of-health to determine the state-of-health of the chemical battery from the second impulse response. Other embodiments are described and claimed. | 03-10-2011 |
20110060539 | METHOD OF ESTIMATING THE NON-MEASURABLE CHARACTERISTICS OF AN ELECTROCHEMICAL SYSTEM - The present invention relates to a method of estimating the internal state of an electrochemical system using mathematical models which allow management of an electrochemical battery during operation, and notably estimation of the characteristics of the battery that are not directly measurable. For applications relating to hybrid and electric vehicles, the most significant internal characteristics are the state of charge (SoC), the state of health (SoH) and the thermal state. Reconstruction of the internal characteristics is achieved using mathematical models of the battery. The method can be used synchronously with the operation of the battery itself (real time) with a reduced or off-line mathematical model, for calibration, optimization or validation of management and estimation strategies. The method is useful for battery sizing, which has to be optimized according to the energy and thermal management strategies. | 03-10-2011 |
20110071780 | METHOD AND APPARATUS FOR DISPLAYING AT LEAST ONE INDICATOR RELATED TO A PROJECTED BATTERY LIFESPAN - In accordance with an example embodiment of the present invention, the apparatus comprises at least one processor and at least one memory including computer program code. The at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the following determine an estimated battery usage for one or more activities. Further, a user interface is configured to display at least one indicator related to a projected battery lifespan based at least in part on the estimated battery usage of the one or more activities. | 03-24-2011 |
20110071781 | BATTERY SYSTEM - A battery system comprises a first battery cell and a first management unit which is connected in one-to-one correspondence to the first battery cell. The first management unit comprises a first parameter acquiring unit, a first calculating unit, and a first storage unit. The first parameter acquiring unit acquires a power consumption parameter of the first battery cell. The first calculating unit calculates a power consumption state value of the first battery cell on the basis of the power consumption parameter acquired by the first parameter acquiring unit. The first storage unit stores the power consumption state value calculated by the first calculating unit. | 03-24-2011 |
20110077879 | DETERMINING BATTERY DC IMPEDANCE - A method and apparatus for measuring battery cell DC impedance by controlling charging of the battery cell. The method includes real-time characterization of a battery, (a) measuring periodically a DC impedance of the battery to determine a measured DC impedance; (b) ratioing the measured DC impedance to a reference DC impedance for the battery to establish an impedance degradation factor; (c) obtaining, during use of the battery and responsive to a set of attributes of the battery, an operational reference impedance for the battery; and (d) applying the impedance degradation factor to the operational reference impedance to obtain a real-time effective impedance for the battery. | 03-31-2011 |
20110077880 | SYSTEMS, METHODS AND COMPUTER READABLE MEDIA FOR ESTIMATING CAPACITY LOSS IN RECHARGEABLE ELECTROCHEMICAL CELL - A system includes an electrochemical cell, monitoring hardware, and a computing system. The monitoring hardware periodically samples charge characteristics of the electrochemical cell. The computing system periodically determines cell information from the charge characteristics of the electrochemical cell. The computing system also periodically adds a first degradation characteristic from the cell information to a first sigmoid expression, periodically adds a second degradation characteristic from the cell information to a second sigmoid expression and combines the first sigmoid expression and the second sigmoid expression to develop or augment a multiple sigmoid model (MSM) of the electrochemical cell. The MSM may be used to estimate a capacity loss of the electrochemical cell at a desired point in time and analyze other characteristics of the electrochemical cell. The first and second degradation characteristics may be loss of active host sites and loss of free lithium for Li-ion cells. | 03-31-2011 |
20110077881 | ABNORMALITY PREDICTION SYSTEM FOR SECONDARY BATTERIES - An abnormality prediction system for secondary batteries according to the present invention includes: a parameter value detection portion that detects parameter values each corresponding to each of a plurality of secondary batteries to determine whether all the parameter values are normal or not; and a singular state determination portion that determines, if a difference between a reference value calculated by use of all the parameter values determined to be normal by the parameter value detection portion and at least one of the parameter values is not less than a threshold value, the secondary battery corresponding to the parameter value with the difference not less than the threshold value to be in a state different from those of the other secondary batteries out of the plurality of secondary batteries. | 03-31-2011 |
20110082655 | METHODS AND SYSTEMS FOR MONITORING LIFT USAGE - Methods and systems for lift monitoring are described. In one embodiment, a first operation signal may be received from a first relay coupled to an electro-mechanical patient lift when the electro-mechanical patient lift is being operated in a first position. A second operation signal may be received from a second relay coupled to the electro-mechanical patient lift when the electro-mechanical patient lift is being operated in a second position. A determination of whether a lift qualification threshold is met may be based on the receiving of the first operation signal and the second operation signal. An occurrence of a lift may be recorded when a determination is made that the lift qualification threshold is met. Additional methods and systems are disclosed. | 04-07-2011 |
20110112781 | METHOD FOR ESTIMATING BATTERY DEGRADATION IN A VEHICLE BATTERY PACK - A method for gathering information from battery sensors—for instance, information regarding the state-of-charge (SOC), temperature and/or other characteristics of battery cells in a vehicle battery pack—and using that information to estimate or predict battery degradation or state-of-health (SOH). According to an exemplary embodiment, the method uses both a time-based algorithm and an event-based algorithm to predict or estimate battery degradation. The event-based algorithm may select certain data from the battery conditions (e.g., a state-of-charge (SOC) swing (ΔSOC) or an SOC maximum (SOC | 05-12-2011 |
20110112782 | BATTERY STATUS DETECTION DEVICE - A battery status detection device for detecting the status of a secondary battery | 05-12-2011 |
20110119004 | Method and a Device for Measuring and Calculating the Insulation Resistance of a High Voltage Power Management System in a Hybrid Power Vehicle - This invention provides a method and a device for measuring and calculating the insulation resistance of a high voltage power management system in a hybrid power vehicle, which are designed to effectively measure the insulation resistance; said method and device for measuring the insulation resistance of a high voltage power management system in a hybrid power vehicle comprising a central process unit circuit, a battery-voltage-balance detection unit and an insulation resistance detection unit. The voltage signal outputted by the battery-voltage-balance detection unit is assessed by the central process unit circuit; the insulation-resistance detection unit is controlled by the central process unit circuit to start up when voltage is slightly out of balance, the signal detected by the insulation resistance detection unit is transmitted to the central process unit circuit, and the signal is transmitted to the battery management system by the central process unit circuit via CAN bus. The present invention not only is capable of measuring the total voltage of the battery with high precision and monitoring the real-time insulation state, but also is capable of effectively measuring the insulation resistance. | 05-19-2011 |
20110119005 | BATTERY-STATE MONITORING APPARATUS - A battery-state monitoring apparatus includes: a secondary battery | 05-19-2011 |
20110125433 | BATTERY MANAGEMENT SYSTEM - Control apparatus for operating a rechargeable energy storage device and for collecting operating data, as well as a method for operating such a control apparatus. The invention is described with reference to the use in a motor vehicle and to the control of the rechargeable energy storage device thereof for the supply of the electric drive of the motor vehicle. However, it should be noted that an apparatus having the features of the claims can operate rechargeable energy storage devices also independently of motor vehicles, or in stationary use. | 05-26-2011 |
20110125434 | METHOD AND SYSTEM FOR ESTIMATING BATTERY PERCENTAGE - A method and a system for estimating a battery percentage are provided. The method includes the following steps. A coulomb counter calculated battery index (CCBI) relating to an accumulated amount of current flowing out of a battery is obtained. A battery voltage curve tracer calculated battery index (VCBI) relating to a temperature, an output voltage of the battery, and a current flowing out of the battery is obtained. A modified calculated battery index (MCBI) ranging between the CCBI and the VCBI is generated according to the CCBI and the VCBI. | 05-26-2011 |
20110130983 | BATTERY MONITORING SYSTEM - A battery monitoring system includes a detector and a supervisor connected to the detector. Wherein, pluralities of sensors of the detector respectively disposed on battery cells of the battery for at least correspondingly detecting voltage and temperature signals of the battery cells. Subsequently, the aforementioned signals are transmitted to a central processor for a separate conversion into accessible and distinguishable data applied to compare with a predetermined threshold. Finally, the compared results would be shown on the supervisor for users to realize the physical state of each battery. The central processor friendly reacts to the compared result under the irregular state and emits a warning signal to the supervisor, for which to promptly carry out a warning action. | 06-02-2011 |
20110130984 | ESTIMATING REMAINING BATTERY SERVICE LIFE IN AN IMPLANTABLE MEDICAL DEVICE - Methods for estimating a remaining service life of an implantable medical device (IMD) battery are presented. In one embodiment, a characteristic discharge model of the battery is employed. Systems employing the methods may include an external device coupled to the IMD, for example, via a telemetry communications link, wherein a first portion of a computer readable medium included in the IMD is programmed to provide instructions for the measurement, or tracking, of time and the measurement of battery voltage, and a second portion of the computer readable medium included in the external device is programmed to provide instructions for carrying out the calculations when the voltage and time data is transferred via telemetry from the IMD to the external device. | 06-02-2011 |
20110130985 | System and Method for Recursively Estimating Battery Cell Total Capacity - A system and method for determining an estimated battery cell total capacity indicative of a total capacity of a battery cell is provided. The method includes receiving a first battery cell state-of-charge estimate at a first time and receiving a second battery cell state-of-charge estimate at a second time subsequent to the first time, measuring an integrated battery cell current value indicative of the integrated battery cell current between the first time and the second time, updating at least one recursive parameter based on the first battery cell state-of-charge estimate, the second battery cell state-of-charge estimate, and the integrated battery cell current value, determining the estimated battery cell total capacity based on at least one recursive parameter, and storing a value corresponding to the estimated battery cell total capacity in a memory. | 06-02-2011 |
20110130986 | System and Method For Maximizing a Battery Pack Total Energy Metric - A system and method for maximizing a battery pack total energy metric indicative of a total energy of a battery pack is provided. The method includes receiving battery cell charge capacity estimates for all cells in the battery pack, composing battery pack configurations comprising subsets of the totality of battery cells, evaluating a battery pack energy metric for every battery pack configuration that is composed, selecting the battery pack configuration that has the maximum battery pack energy metric, and storing values indicative of the selected battery pack configuration in a memory. | 06-02-2011 |
20110153239 | Test bed for electrical energy storage systems for vehicles - A test bed for electrical energy storage systems for vehicles, in particular for traction batteries for hybrid electric vehicles, plug-in hybrid electric vehicles, and electric vehicles is equipped with a test system ( | 06-23-2011 |
20110153240 | Method for Determining Power Supply Usage - The remaining capacity of a battery may be monitored with a microprocessor by integrating a voltage measured across a current sense resistor coupled in series with the battery. The microprocessor may measure electrons passing through the battery by sampling the integrator and summing the values recorded from the integrator. Each time the integrator is sampled, the microprocessor may reset the integrator to prevent the integrator from saturating. The remaining capacity of the battery may be calculated based on calibration values and the sum of electrons measured by the integrator. The remaining capacity may be communicating to remote users through a network and displayed in an executive dashboard. | 06-23-2011 |
20110153241 | SEMICONDUCTOR INTEGRATED CIRCUIT - A semiconductor integrated circuit includes a central processing unit | 06-23-2011 |
20110161024 | BATTERY MULTI-SERIES SYSTEM AND COMMUNICATION METHOD THEREOF - A battery multi-series system and a communication method thereof. The battery multi-series system includes a master battery management system managing a battery; and a block master battery management system connected to the master battery management system and receiving data from at least one slave battery management system and storing the received data, wherein the master battery management system receives data periodically from the block master battery management system. | 06-30-2011 |
20110161025 | STATE ESTIMATING DEVICE FOR SECONDARY BATTERY - A battery state estimating unit estimates an internal state of a secondary battery in accordance with a battery model equation in every arithmetic cycle, and estimates a charging rate and a battery current based on a result of the estimation. A parameter estimating unit obtains a battery current measured by a sensor as well as the charging rate and the battery current estimated by the battery state estimating unit. The parameter estimating unit estimates a capacity deterioration parameter such that a rate of change in difference (estimation error) between a summed value of an actual current and a summed value of an estimated current with respect to the charging rate is minimized. A result obtained by estimating the capacity deterioration parameter is reflected in the battery model by the battery state estimating unit. | 06-30-2011 |
20110166810 | System And Method For Determining An Expected Vehicle Drive Range - A vehicle may include one or more controllers configured to determine a remaining energy of the vehicle's battery, to determine a series of energy consumption rates of the vehicle, and to select a set of energy consumption rates from the series. The one or more controllers may be further configured to determine an expected drive range for the vehicle based on the remaining energy and the selected set of energy consumption rates. | 07-07-2011 |
20110166811 | METHOD AND SYSTEM FOR DETERMINING A STATE OF CHARGE OF A BATTERY - Methods and systems are provided for determining a state of charge of a battery. The battery is subjected to a predetermined magnetic field such that the battery and the predetermined magnetic field jointly create a resultant magnetic field. The resultant magnetic field is sensed. The state of charge of the battery is determined based on the resultant magnetic field. | 07-07-2011 |
20110172939 | System and Method to Determine an Internal Resistance and State of Charge, State of Health, or Energy Level of a Rechargeable Battery - A battery monitoring system includes a current, voltage, and temperature sensor. The system includes a processor in communication with each of the current, voltage, and temperature sensor that is configured to read a first bulk current of the at least one of a battery and a battery cell at a first time using the current sensor, and, when the first bulk current is less than a first threshold, read a second bulk current of the at least one of a battery and a battery cell at a second time using the current sensor. When the second bulk current has a value between a second threshold and a third threshold and the difference between the first time and the second time is less than a pre-determined delay threshold, the processor is configured to use the first and second bulk current values to determine an internal resistance of the battery or cell. | 07-14-2011 |
20110172940 | CELL DIAGNOSTIC SYSTEM AND METHOD - A system for assessing the accuracy of an electrochemical cell voltage measurement includes a cell discharge circuit electrically coupled to at least one electrochemical cell and configured to partially discharge the at least one cell when the cell discharge circuit is activated, and a cell measurement circuit electrically coupled to the at least one cell and to the cell discharge circuit. The cell measurement circuit is configured to measure a voltage of the at least one cell before activation of the cell discharge circuit and after activation of the cell discharge circuit. The cell measurement circuit compares the voltage before activation of the cell discharge circuit to the voltage after activation of the cell discharge circuit to detect if an error in the voltage measurement occurred. | 07-14-2011 |
20110178742 | DETECTION METHOD FOR MEMBRANE AND ELECTRODE FAILURES IN FUEL CELL STACKS - A method for determining a failure of a membrane in a fuel cell in a fuel cell stack. The method includes measuring the voltage of each fuel cell in the fuel cell stack, calculating an average cell voltage from all of the cell voltages of the fuel cells in the fuel cell stack, and identifying a minimum cell voltage from all of the cell voltages of the fuel cells in the fuel cell stack. The method then determines an absolute delta voltage value as the difference between the average cell voltage of the fuel cells and the minimum cell voltage of the fuel cells at a plurality of sample points during the sample period. A plurality of absolute delta voltage values determined over a plurality of sample periods, filtered for low current density are used to determine whether there is a membrane failure and, by filtering for high current density, to determine whether there is an electrode failure. | 07-21-2011 |
20110178743 | EARLY DETECTION OF MINIMUM CELL VOLTAGE DEGRADATION OF A FUEL CELL STACK - A method for determining a low performing cell in a fuel cell stack. The method measures the voltage of each cell in the fuel cell stack and calculates an average cell voltage of all of the cell voltages from the fuel cell stack at a plurality of stack current densities. The method also identifies a minimum cell voltage from all of the cell voltages from the fuel cell stack at the plurality of stack current densities that the average cell voltages are calculated and determines a relative delta voltage relationship between the average cell voltage and the minimum cell voltage at each of the plurality of stack current densities. The relative delta voltage relationships are used to determine whether the minimum cell voltage indicates a persistent stack problem. | 07-21-2011 |
20110178744 | SOLAR POWERED OPERATION OF MEDICAL DEVICES - A medical device includes an energy storage unit that is configured for being supplied with solar energy. The medical device is configured for an evaluation of a charging state of the storage unit according to a medical workflow and for the output of information related to the result of the evaluation or a signal related to the evaluation. A supply of energy is provided during the workflow. | 07-21-2011 |
20110178745 | ELECTRONIC DEVICES, REMAINING BATTERY ENERGY LEVEL DISPLAYING METHOD, AND OPERABLE TIME DISPLAYING METHOD - Provision of electronic devices adapted to display a remaining energy level of a battery in service in combination with remaining energy levels of batteries out of service, or display an operable time by a remaining energy level of a battery in service in combination with an operable time by remaining energy levels of batteries out of service, and a remaining battery energy level displaying method and an operable time displaying method applicable thereto. | 07-21-2011 |
20110178746 | PORTABLE DEVICE, BATTERY PACK, DISPLAY CONTROLLING METHOD, AND DISPLAY CONTROLLING PROGRAM - A portable device driven by a secondary battery which is chargeable and dischargeable, the portable device including a full charge detecting unit configured to detect full charge of the secondary battery in receipt of a report of the full charge and acquires capacity data indicative of a capacity of the secondary battery, a memory controlling unit configured to store the capacity data acquired by the full charge detecting unit in a memory unit, and a display control unit configured to cause a display unit of the portable device to display the capacity data stored by the memory controlling unit in chronological order. | 07-21-2011 |
20110184677 | BATTERY MANAGEMENT SYSTEM AND DRIVING METHOD THEREOF - A battery management system and a driving method thereof are disclosed, which may detect a short battery cell capable of causing short among a plurality of battery cells during a parking period of a vehicle. The battery management system includes a sensing unit for measuring a cell voltage and a cell current of each of a plurality of battery cells and an MCU for measuring an SOC of each of the battery cells to control charge and discharge by utilizing the cell voltage and the cell current of each of the battery cells. The MCU measures a first SOC of each of the battery cells in a key-off state and a second SOC of each of the battery cells in a key-on state after the key-off state. The MCU utilizes the first SOC, the second SOC, and a time period between the first and second SOCs to determine a short battery cell among the plurality of battery cells. | 07-28-2011 |
20110196632 | BATTERY PACK MONITORING APPARATUS - The battery pack monitoring apparatus is for monitoring a battery pack constituted of battery blocks connected in series and each including battery cells connected in series. The battery pack monitoring apparatus includes a cell monitoring circuits provided respectively for the battery blocks, and a control circuit. Each of the cell monitoring circuits includes a cell voltage detection circuit to detect cell voltages of the battery cells included in a corresponding one of the battery blocks, and a block voltage detection circuit to detect a block voltage of the corresponding one of the battery blocks. The control circuit is configured to detect states of the battery cells based on the cell voltages and the block voltages transmitted from the respective cell monitoring circuits. | 08-11-2011 |
20110196633 | ACCUMULATOR DEVICE, AND STATE OF CHARGE EVALUATION APPARATUS AND METHOD FOR ACCUMULATOR - There are implemented a method which allows a present state of charge to be precisely estimated not only for a new battery, but also for a lead accumulator that has deteriorated with the lapse of a certain period since first use thereof, and a lead accumulator which can be increased in lifetime and reduced in cost using information on the precisely determined state of charge. An accumulator device includes an accumulator, a terminal voltage measurement unit for measuring a terminal voltage of the accumulator, a current measurement unit for measuring a current flowing in the accumulator, multi-dimensional characteristic models in which a plurality of relational models each between the measured terminal voltage, current and the state of charge are prepared for each of deterioration degrees, a deterioration degree estimation unit for estimating a present deterioration degree of the accumulator, a corresponding model selective determination unit for selectively determining, based on the deterioration degree determined by the deterioration degree estimation unit, a corresponding model from among the multi-dimensional characteristic models, and a state of charge estimation unit for estimating the present state of charge using the model selectively determined by the corresponding model selective determination unit. | 08-11-2011 |
20110208451 | METHOD AND APPARATUS FOR DETECTING CELL DETERIORATION IN AN ELECTROCHEMICAL CELL OR BATTERY - A testing device detects and quantifies cell deterioration of an electrochemical cell or battery. The device contains measuring circuitry adapted to apply time-varying electrical excitation to said cell or battery, to sense time-varying electrical response to said excitation, and to utilize said excitation and response to determine components of complex immittance (i.e., either impedance or admittance) at n+m discrete frequencies, where n is an integer equal to or greater than two and m is an integer equal to or greater than one. Computation circuitry utilizes measured complex immittance components at the n discrete frequencies to evaluate the elements of a 2n-element equivalent circuit model. It then calculates the complex immittance of this model at the m discrete frequencies and mathematically compares components of the calculated immittances with components of the measured immittances at the m discrete frequencies. The results of this comparison are related to the degree of cell deterioration. A pass/fail determination can thus be made based solely upon cell deterioration—without even knowing the battery's manufacturer, group size, or its electrical ratings. | 08-25-2011 |
20110208452 | NON-INVASIVE METHOD OF DETERMINING THE ELECTRICAL IMPEDANCE OF A BATTERY - A non-invasive method and device for determining the electrical impedance of an electrochemical system for electric power is disclosed. The voltage and current are measured at terminals as a function of time, and these measurements are converted to signals dependent on frequency. The signals dependent on frequency are subjected to at least one segmentation. For each segment, a power spectral density of the current signal Ψ | 08-25-2011 |
20110208453 | CIRCUIT-BASED METHOD FOR ESTIMATING BATTERY CAPACITY - A method for providing state of charge (SOC) estimations is disclosed. The method may comprise: receiving a battery having a nominated capacity; measuring an initial SOC of the battery; discharging the battery and measuring a sequence of time-based discharge characteristics; measuring a total operating time and a total consumed capacity; providing a set of relationship equations derived from a circuit-based battery model having a variable capacitor; utilizing a computing module to perform data fitting of the set of relationship equations based on: the initial SOC, the nominated capacity, the total operating time, the total consumed capacity, and the sequence of discharge characteristics, the computing module being configured for determining values for a plurality of parameters of the set of relationship equations through said data fitting; and obtaining a remaining capacity estimation equation based on the set of relationship equations after the values for the plurality of parameters are determined. | 08-25-2011 |
20110208454 | SCAN TOOL FOR ELECTRONIC BATTERY TESTER - A cable for connecting to an electronic battery tester, includes a first end configured to couple to a databus of a vehicle and a second end configured to couple to the electronic battery tester. An electrical connection extends between the first end and the second end and is configured to couple the electronic battery tester to the databus of the vehicle. | 08-25-2011 |
20110208455 | METHOD AND APPARATUS FOR MONITORING BATTERY STATUS OF IMPLANTABLE MEDICAL DEVICE - A battery monitoring system monitors status of a battery in an implantable medical device by comparing a measured battery status trend to a calculated battery status trend. The measured battery status trend is a trend of measured parameter values each indicative of an actual state of depletion of the battery. The calculated battery status trend is a trend of calculated parameter values each indicative of an expected state of depletion of the battery. | 08-25-2011 |
20110213576 | METHOD FOR CALCULATING THE CHARGE STATE OF A BATTERY - In a method for ascertaining the charge state of a battery based on its open circuit voltage which may be determined using various methods, the accuracy of the charge state calculation may be optimized if the error of the open circuit voltage, which would result from applying a first and at least one additional method for open circuit voltage determination, is calculated, and the charge state is ascertained based on the particular open circuit voltage, the error of which is smaller than the error, which would result from applying another method for determining the open circuit voltage. | 09-01-2011 |
20110218747 | MONITOR FOR FRONT TERMINAL BATTERIES - A battery monitoring device configured to monitor a storage battery. The battery monitoring device includes Kelvin connectors configured to couple to the terminals of the storage battery. The battery monitoring device is configured to receive data from a second battery monitoring device. Further, the battery monitoring device is configured to measure a parameter of the storage battery. The measured parameter and the data received from the second battery monitoring device are communicated to a receiving station. | 09-08-2011 |
20110218748 | Apparatus for Monitoring Battery Voltage and Temperature - An apparatus for monitoring battery voltage and temperature includes a host controller and acquisition boards, and every acquisition board for the battery includes a voltage acquisition module, a temperature acquisition module, a host control chip MCU, A/D convertor module, an opto-isolator module, a CAN bus communication module and two external connection ports CN | 09-08-2011 |
20110224928 | BATTERY STATE ESTIMATOR USING MULTIPLE SAMPLING RATES - A method for estimating vehicle battery parameters that uses two different sampling rates. The method samples a battery terminal voltage and current at a high sampling rate to estimate the battery open circuit voltage and high frequency resistance. The battery state of charge (SOC) is derived from the open circuit voltage. Next, the battery terminal voltage and current are re-sampled at a low sampling rate. Other battery parameters can be extracted from the low-rate sampled signals. Next, all of the battery parameters that were obtained from the two sampling rates are used together to predict battery power. | 09-15-2011 |
20110231122 | METHOD AND SYSTEM FOR DETERMINING THE KIND OF A BATTERY - A method and system is disclosed for determining the kind of a battery in an automotive vehicle. Based on obtaining a set of battery parameters corresponding to the battery in the automotive vehicle, the set of battery parameters is compared to a number of predetermined sets of known battery parameters to obtain respective comparison values. Based on at least one of the comparison values, the kind of battery in the vehicle is determined to be of the same type and capacity as a known kind of battery that corresponds to one of the predetermined sets of known battery parameters. | 09-22-2011 |
20110231123 | Battery Analysis Interface and Measurement System - A battery analysis interface enables measurement of a performance of an internal battery while the battery powers an electronic device. The battery analysis interface is configured to connect an analysis device to the battery located within a battery compartment of the electronic device and enclosed by a battery cover. In this way, the battery analysis interface may enable testing of the battery's performance while the electronic device is fully assembled (i.e., the battery cover is secured to electronic device). The battery analysis interface may be connected to directly to terminals on the battery and/or electronic device or connected to the terminals via wires or strips of conductive material. | 09-22-2011 |
20110231124 | BATTERY MODEL IDENTIFICATION METHOD - In a battery model identification method of the present invention, an M-sequence input electric current production part | 09-22-2011 |
20110238343 | Apparatus, system and method of managing battery level of wirelessly communicable radiographic cassette - A current charge level of a battery presently used for supplying a wirelessly communicable cassette is detected and transmitted to a console of an X-ray imaging apparatus. In the console, a power consumption calculator calculates an estimated amount of power consumption by the cassette for each of received orders for inspections. When a new order for inspection is received, or one of the ordered inspections is canceled or finished, or the battery of the cassette is replaced, the last inspection until which the presently used battery can effectively supply the cassette is determined among the ordered inspections on the basis of the detected current charge level and the estimated power consumption amounts for the individual inspections, to display a message prompting to replace the presently used battery before the end of the determined last inspection. | 09-29-2011 |
20110238344 | SYSTEM AND METHOD OF BATTERY CAPACITY ESTIMATION - A method includes measuring an operating parameter of a battery of a mobile device. The measured operating parameter is translated into an equivalent series resistance (ESR) value. The ESR value is adjusted by a correction factor to generate a corrected ESR value. The capacity of the battery is determined based on the corrected ESR value. The correction factor is automatically calibrated based on the measured operating parameter. | 09-29-2011 |
20110257912 | APPARATUS FOR ANALYSIS AND EVALUATION OF CHARACTERISTICS OF SERIES-CONNECTED SOLAR BATTERY CELLS - An apparatus for estimating and evaluating characteristics of large-area series-connected solar battery cells from a measured current-voltage characteristic of a small-area single cell, includes an analysis model construction unit, an analysis operation unit and an evaluation unit. The construction unit reads shape parameters and material physical properties of the cells and automatically constructs a finite element method model. The operation unit obtains a current at a voltage based on the measured characteristic, sets the current as a current load, calculates potential distributions of transparent electrode and rear electrode of the cells, corrects the current load based on a difference between the distributions and the measured characteristic, recalculates the distributions based on the corrected current load, and repeats the recalculation until the distributions converge. The evaluation unit evaluates whether a converged calculation result is a pattern exhibiting a desired current-voltage characteristic of the cells. | 10-20-2011 |
20110257913 | ELECTRONIC BATTERY TESTER WITH BATTERY AGE INPUT - An electronic battery tester for testing a storage battery, includes connections configured to couple to terminals of the battery. Measurement circuitry is coupled to the connections and configured to measure a parameter of the battery. An input is configured to receive a battery age input variable. Computation circuitry is configured to provide a test output related to a condition of the battery based upon the measured parameter and the battery age input variable. | 10-20-2011 |
20110257914 | Charged state estimating device and charged state estimating method of secondary battery - When a battery current is not larger than a limit current set depending on the battery temperature and is flowing continuously for a predetermined time set depending on the battery temperature or longer, a decision is made that a secondary battery is in stable state. When the secondary battery is in stabilized state, the battery voltage is considered to be equal to the open circuit voltage and SOC estimation is performed based on the open circuit voltage-SOC characteristics. When the product of the internal resistance of the secondary battery and the limit current is made substantially constant (constant voltage) by setting the limit current in association with temperature dependence of the internal resistance, estimation error can be kept within a predetermined range in the stabilized state even if SOC estimation is performed while the battery voltage is assumed as the open circuit voltage. Consequently, SOC can be estimated with high precision within a predetermined error by a simple and reliable system under stabilized state. | 10-20-2011 |
20110257915 | APPARATUS FOR CALCULATING STATE OF CHARGE, METHOD OF CALCULATING STATE OF CHARGE, AND ELECTRIC SYSTEM - When the sum of a first state of charge of a first battery stack and a second state of charge of a second battery stack is large, a higher state of charge is selected as a priority state of charge. When the sum of first state of charge of the first battery stack and the second state of charge of the second battery stack is small, a lower state of charge is selected as the priority state of charge. A first coefficient and a second coefficient are set in accordance with the priority state of charge. The second coefficient is set so as to be lower than the first coefficient. The product of the first coefficient and the priority state of charge is added to the product of the second coefficient and the other state of charge, to thereby calculate a state of charge of a power storage system. | 10-20-2011 |
20110257916 | SYSTEM, METHOD, AND ARTICLE OF MANUFACTURE FOR DETERMINING AN ESTIMATED BATTERY CELL MODULE STATE - A system, a method, and an article of manufacture for determining an estimated battery cell module state indicative of a state of a battery cell module of a battery pack are provided. The method includes measuring at least one of a battery cell module voltage, a battery cell module current, and a battery cell module temperature. The method further includes determining the estimated battery cell module state of the battery cell module at a predetermined time based on an estimated battery pack state and at least one of the battery cell module voltage, the battery cell module current, and the battery cell module temperature. The method further includes storing a vector corresponding to the estimated battery cell module state in a memory. | 10-20-2011 |
20110264390 | METHOD AND APPARATUS FOR DETERMINING STATE OF CHARGE VALUES FOR AN ELECTRICAL POWER CELL - A method for determining a state of charge value for an electrical power cell comprises obtaining an indication of a charge level of the electrical power cell, obtaining at least one indication of at least one operating condition for the electrical power cell, and determining an available charge indication value and a potential charge indication value based at least partly on the charge level indication and the at least one operating condition indication. | 10-27-2011 |
20110270552 | DELTA-SIGMA AD CONVERTER CIRCUIT AND BATTERY PACK - A delta-sigma AD converter circuit includes a modulation unit to produce pulse density modulated data by pulse density modulation of an analog signal, and a filtering unit to convert the pulse density modulated data into pulse code modulated data, wherein the modulation unit includes a shift register to store and shift the pulse density modulated data in synchronization with a clock, a counter to generate a register store instruction signal and a read request signal upon a count value reaching a predetermined value responsive to a mode, the count value being a count of a number of shifts of the shift register, and a plurality of registers to store plural data obtained by dividing data stored in the shift register and to hold the plural data in such a form that each of the plural data is readable independently of the others, wherein one or more of the plurality of registers store the pulse density modulated data stored in the shift register in response to the register store instruction signal, and the filtering unit reads the pulse density modulated data from one or more of the plurality of registers responsive to the mode in response to the read request signal. | 11-03-2011 |
20110276290 | Device for counting and storing automatically number of times of usage of cell - A device for counting and storing automatically the number of times of usage of a cell is provided. The device essentially includes at least a battery, a current sensor, a microprocessor, a memory unit, and a communication interface. Electrical connection is provided between the microprocessor and other components. The microprocessor, coupled with the current sensor, determines a time to start or stop counting, adds up the calculated charging and discharging duration, and sends the total duration to the memory unit. An external device can be connected to the microprocessor via the communication interface for reading from the memory unit the accumulative total of the charging and discharging duration, and obtain the number of times of the full charging and the full discharging of the battery by formula-based conversion. The device enables users and maintenance technicians to understand the past usage of the cell, and provides reference for warranty maintenance. | 11-10-2011 |
20110282604 | BATTERY PACK, ELECTRONIC DEVICE, AND INSPECTION METHOD OF BATTERY PACK - A battery pack includes: a chargeable and dischargeable battery; and a microcomputer that acquires information on a voltage drop across the battery in a condition equivalent to no load and stores the information therein. | 11-17-2011 |
20110288797 | METHOD FOR DETERMINING THE CHARGE STATE OF A SECONDARY INTERCALATION CELL OF A RECHARGEABLE BATTERY - A method is described for determining the charge state of a secondary intercalation cell having an anode, a cathode, a separator, and an electrolyte phase, which saturates the anode, the cathode, and the separator, in which the charge state is back-calculated on the basis of measured variables, which are measured on the intercalation cell, with the aid of an electrochemical simulation model. In the fundamental simulation model, physical-chemical properties in the anode and the cathode are each considered in simplified form as being homogeneously distributed in the anode and in the cathode and Butler-Volmer reaction kinetics are calculated in each case for the anode and for the cathode. The Butler-Volmer reaction kinetics are expanded on the anode side by a potential component (Φ | 11-24-2011 |
20110288798 | Method and Apparatus For Measuring and Monitoring a Power Source - A system and method for monitoring a power source using a site controller and first and second sensors are described herein. The system may include a first power source in communication with a second power source. The system may include a first sensor in communication with the first power source and the first sensor may calculate an exponential discharge characteristic of the first power source. The system may include a second sensor in communication with the second power source and the second sensor may calculate an exponential discharge characteristic of the second power source. The system may include a controller in communication with the first sensor via the second sensor wherein the controller may determine the characteristics of the first power source as a function of the exponential discharge characteristic of the first power source. | 11-24-2011 |
20110295532 | ELECTRONIC STORAGE BATTERY DIAGNOSTIC SYSTEM - A battery diagnostic system including Kelvin connectors configured to electrically couple to a storage battery. A forcing function source is configured to apply a forcing function signal to the storage battery through the Kelvin connectors. Measurement circuitry calculates an electrical parameter of the storage battery. A memory stores a plurality of electrical parameters for a plurality of storage batteries and each of the plurality of stored electrical parameters is associated with storage battery identifier information which identifies one of the storage batteries of the plurality of storage batteries and time information, which identifies a time the electrical parameter was obtained. | 12-01-2011 |
20110295533 | METHOD AND DEVICE FOR CLASSIFYING A BATTERY - The invention relates to a device for classifying a battery produced by assembling electricity-accumulating elements ( | 12-01-2011 |
20110295534 | METHOD FOR DETERMINING DROP IN CAPACITY OF SODIUM-SULFUR BATTERY - It is determined that a drop in the capacity of a sodium-sulfur battery has proceeded to an abnormal level when both the following expression (1) and expression (2) hold. Qe−Qn≧K1 . . . (1) where Qe: abnormal block depth-of discharge; Qn: normal block depth of discharge; and K1: block abnormality determination setting value (integer constant), and Qe≧K2 . . . (2) where K2: depth of discharge abnormality determination setting value (integer constant). | 12-01-2011 |
20110301890 | AGGREGATING MOBILE DEVICE BATTERY LIFE DATA - Battery life data may be collected from a number of mobile devices. The battery life data for each of the mobile devices may be correlated with one or more characteristics of each of the mobile devices. The battery life data for the mobile devices may be aggregated based on at least one of the one or more characteristics. In some examples, a report of the aggregated battery life data for the mobile devices including at least one common characteristic is generated. | 12-08-2011 |
20110301891 | METHOD OF DIAGNOSING DETERIORATION OF CELL OF BATTERY FOR VEHICLE - Provided is a method of diagnosing deterioration of a cell of a battery for a vehicle. The present method makes it possible to prevent deterioration of a battery pack and reduction of performance due to degradation. The methods include calculating internal resistance in the method of least squares based on current and voltage of each cell in a battery pack, calculating available capacity and power of the cells from the internal resistance, determining whether the cells are deteriorated on the basis of the available capacity and power, and instructing a driver to check and repair the battery pack if needed. | 12-08-2011 |
20110307201 | BATTERY CAPACITY DISPLAY FOR A POWER TOOL - The present invention discloses a battery capacity display circuit for a power tool. The battery capacity display circuit has a first circuit module arranged in the battery pack of the power tool for detecting and displaying the battery capacity and a second circuit module arranged in the power tool for displaying the battery capacity. The battery capacity display also has an optical signal transmitting device and an optical signal receiving device to communicate with the first circuit module and the second circuit module. | 12-15-2011 |
20110307202 | SYSTEM FOR MONITORING THE STATE OF A BATTERY - The invention is a monitoring system for a battery having a plurality of accumulators. The system comprises means for measuring the voltage on the terminals of each accumulator, means for measuring the temperature of the battery, means for measuring the current flowing through the battery, means for calculating a voltage difference between a maximum voltage measured on the terminals of one of the accumulators and a minimum voltage measured on the terminals of one of the accumulators, means for comparing the voltage difference with at least one threshold value depending on the measured temperature and current, and means reporting an error if the voltage difference is greater than or equal to said at least one threshold value. | 12-15-2011 |
20110313696 | BATTERY MONITORING SYSTEM - A battery monitoring device includes a sensor device, which is electrically connectable to an automobile battery and may be placed thereon, and which is arranged to detect an operating variable of the battery. The battery monitoring device further includes a detection circuit, which is connected via a cable connection to the sensor device; and a data processing circuit, which is connected via a potential isolation circuit to the detection circuit. The potential isolation circuit provides isolation of the potential level of the detection circuit from a potential level of the data processing circuit for direct components. | 12-22-2011 |
20110313697 | METHOD AND APPARATUS FOR MONITORING BATTERY LIFE - A method and apparatus for monitoring battery life in a human input device powered by replaceable batteries includes repeatedly measuring battery charge by use of a measuring arrangement forming part of the input device. Battery charge is measured while the input device is in a relatively inactive condition and when it is in an active condition, and a time value is associated with each battery charge measurement. A usage model may be constructed based on the battery charge measurements, and calculation of an expected battery life may be based at least in part on the usage model. | 12-22-2011 |
20110313698 | VOLTAGE POLARITY DETERMINATION CIRCUIT AND CHARGE AMOUNT MEASUREMENT CIRCUIT - A voltage polarity determination circuit includes an integration circuit, a switch, and a time measurement circuit. The integration circuit includes an operational amplifier circuit having an input offset voltage which is larger than the maximum value of a voltage input to the integration circuit or smaller than the minimum value of the input voltage of the integration circuit. The switch switches the input voltage of the integration circuit between a voltage whose polarity is to be determined and a reference voltage. The time measurement circuit measures a time interval which it takes for the output voltage of the integration circuit to reach a set voltage, and based on the result of the measurement, determines the polarity of the input voltage of the integration circuit. | 12-22-2011 |
20110313699 | METHOD FOR CALCULATING STATE OF CHARGE OF SODIUM-SULFUR BATTERY - An accurately and precisely calculation of the state of charge of a sodium-sulfur battery may be made by determining a state of charge Qr according to expression (1) given below even if the sodium-sulfur battery is applied to compensate for fluctuations in the power generated by a natural energy generating device: Qr=100×(1−(Qu/(Qa−Qsf))) . . . (1) where Qu: used capacity; Qa: product capacity; and Qsf: residual capacity in final year; and Qsf=f | 12-22-2011 |
20120004873 | BATTERY MANAGEMENT SYSTEMS FOR PROTECTING BATTERIES FROM FAULT CONDITIONS - A battery management system for a battery pack that includes multiple battery cells is disclosed. The battery management system includes a detector coupled to the battery cells, multiple temperature sensors coupled to the battery cells, a current sensor coupled to the battery cells in series, and a processor coupled to the current sensor. The detector generates first monitoring signals corresponding to cell voltages across the battery cells. The temperature sensors generate second monitoring signals corresponding to temperatures of the battery cells. The current sensor generates third monitoring signals corresponding to currents of the battery cells. The processor determines whether an undesired condition is present according to the first, second, and third monitoring signals. | 01-05-2012 |
20120004874 | MAXIMUM POWER POINT TRACKING DEVICE FOR A SOLAR ELECTRIC GENERATION SYSTEM AND A TRACKING METHOD FOR THE SAME - A maximum-power-point tracking device is provided for a solar electric-generation system that includes a solar battery and a DC/DC converter connected to the solar battery. The device includes a sampling module configured to detect output current and voltage values of the solar battery. A controlling module is configured to calculate a target current value according to the output current and voltage values and a preset current value, and output a controlling signal for controlling the value of a current according to the output current of the solar battery and the target current value. The device also includes a driving module configured to receive the controlling signal from the controlling module and output a driving signal to adjust a output current value of the DC/DC converter to close to the target current value and adjust an output power of the DC/DC converter. | 01-05-2012 |
20120004875 | METHOD OF DETECTING BATTERY INTERNAL RESISTANCE - The method of detecting battery internal resistance detects battery | 01-05-2012 |
20120016609 | IN-VEHICLE BATTERY MONITOR - An apparatus and a method of monitoring a battery in an automotive vehicle are provided. An output is provided which can be a relative output as a function of minimum and maximum parameters of the battery. | 01-19-2012 |
20120022816 | METHOD FOR DETERMINING A PARAMETER OF AT LEAST ONE ACCUMULATOR OF A BATTERY - A method for determining a parameter such as the resistance of at least one accumulator of a battery, comprising the steps:
| 01-26-2012 |
20120022817 | Measuring and Monitoring a Power Source - The disclosed battery monitoring systems and methods may minimize measurement errors due to noise and/or other disruptions. The sensor may generate a pulse width modulated signal that when applied to the battery forms an AC test signal having a defined waveform, frequency, amplitude, and/or duration. The sensor may measure the battery's response to the test signal. The resultant response signal may be measured to determine the health of the battery, including its internal admittance. The sensor may determine an optimum frequency to test the battery by scanning a frequency range and measuring the amount of noise present. | 01-26-2012 |
20120022818 | AGGREGATING MOBILE DEVICE BATTERY LIFE DATA - Battery life data may be collected from a number of mobile devices. The battery life data for each of the mobile devices may be correlated with one or more characteristics of each of the mobile devices. The battery life data for the mobile devices may be aggregated based on at least one of the one or more characteristics. In some examples, a report of the aggregated battery life data for the mobile devices including at least one common characteristic is generated. | 01-26-2012 |
20120029851 | REMAINING CAPACITY DETECTING DEVICE AND BATTERY CONTROL IC - A battery control IC includes a remaining amount estimation computing unit. The remaining amount estimation computing unit switches, during discharging of a battery pack, a first estimating method, in which a direct current resistance is obtained from a change in a voltage value of a battery voltage and a change in a current value of a current flowing through the battery pack at a start of discharging of the battery pack and a full charge capacity of the battery pack is obtained based on information set in advance indicating a relation between the direct current resistance and the full charge capacity, and a second estimating method, in which the full charge capacity of the battery pack is estimated from a relation between an open-circuit voltage predicted from the battery voltage and a used charge amount obtained from information of the current flowing through the battery pack. | 02-02-2012 |
20120029852 | BATTERY MONITOR SYSTEM ATTACHED TO A VEHICLE WIRING HARNESS - A computer system that installs in the proximity of the vehicle's operator by attaching to the vehicle's wiring harness (e.g., via a power outlet in the vehicle cabin). The device, gathers data relating to the operational state of the vehicle's battery, calculates various health information of the battery from the gathered data, and provides the health and operational state of the battery to the vehicle's operator. To facilitate battery health calculations, the device receives input from a temperature sensor that is remote to the battery, such as a temperature sensor in the device's housing or in the vehicle cabin. The temperature reading can be used to approximate the temperature of the battery. The computer system can also support non-battery related functions, such as navigation, theft deterrence, etc. Algorithms utilizing battery health data over multiple load cycles to determine the health of a battery are also disclosed. | 02-02-2012 |
20120035872 | EXTENDED BATTERY DIAGNOSIS IN TRACTION BATTERIES - The invention relates to a method and a device for determining the properties of a battery, in particular a traction battery. Particularly the invention determines a battery state such as the capacity and/or a charging state and/or a remaining service life of the battery, preferably with an observer and a battery model for a model-based state identification. According to the invention, a querying module for querying an operational state of a consumer supplied by a battery and a first control module for starting the determination of the properties of the battery, only when the operational state of the supplied consumer shows that it does not operate in the principal mode, are provided. | 02-09-2012 |
20120035873 | APPARATUS AND METHOD FOR ESTIMATING STATE OF HEALTH OF BATTERY BASED ON BATTERY VOLTAGE VARIATION PATTERN - An apparatus estimates SOH of a battery based on a battery voltage variation pattern. A data storing unit obtains and stores battery voltage, current and temperature data from sensors, at each SOH estimation. A first SOC estimating unit estimates first SOC by current integration using the battery current data. A second SOC estimating unit estimates open-circuit voltage from the voltage variation pattern, and calculates and stores second SOC corresponding to the open-circuit voltage and temperature using correlations between the open-circuit voltage/temperature and SOC. A weighted mean convergence calculating unit calculates and stores convergence value for weighted mean value of ratio of the second SOC variation to the first SOC variation. A SOH estimating unit estimates capacity corresponding to the weighted mean convergence value using correlation between the weighted mean convergence value and the capacity, estimates relative ratio of the estimated capacity to an initial capacity, and stores it as SOH. | 02-09-2012 |
20120041697 | ELECTRONIC BATTERY TESTER FOR TESTING STORAGE BATTERY - An electronic battery tester, includes test circuitry configured to couple to a battery and measure a parameter of the battery. A manual input is configured to receive an input from an operator. A user output provides an output to the operator. A memory contains programming code, which includes code to output battery test procedure instructions for implementation by the operator. A microprocessor operates in accordance with the programming code to instruct the operator to perform the battery test procedure. The microprocessor further performs a battery test based upon the measured parameter. | 02-16-2012 |
20120041698 | METHOD AND SYSTEM FOR OPERATING A BATTERY IN A SELECTED APPLICATION - A method of the present invention using a prediction process including a battery equivalent circuit model used to predict a voltage and a state of charge of a battery. The equivalent circuit battery model includes different equivalent circuit models consisting of at least an ideal DC power source, internal resistance, and an arbitrary number of representative parallel resistors and capacitors. These parameters are obtained a priori by fitting the equivalent circuit model to battery testing data. The present invention further uses a correction process includes determining a corrected predicted state of charge of the battery; and storing the corrected state of charge of the battery in a storage medium. In the present invention, an expectation of the predicted voltage of the battery and an expectation of the predicted state of charge of the battery are obtained by an unscented transform with sigma points selected by a Gaussian process optimization. | 02-16-2012 |
20120046892 | DETERMINATION OF THE INTERNAL RESISTANCE OF A BATTERY CELL OF A TRACTION BATTERY WHILE USING INDUCTIVE CELL BALANCING - The invention relates to a method and a device for determining the internal resistance of a battery cell of a battery, in particular a traction battery, in which an inductive cell balancing for balancing the charging states of the battery cells is carried out, whereby the charge removed from or supplied to a battery cell is determined by a determination of the current flowing during the removal or supply of the charge. According to the invention, a first control module is provided for determining a first voltage applied to the battery cell and a first current flowing from or to the battery cell at a first time during removal or supply of the charge and for determining a second voltage applied to the battery cell and a second current flowing from or to the battery cell at a second time during removal or supply of the charge. Further provided is a calculating unit for calculating the internal resistance of the battery cell on the basis of the quotients of the difference of the second voltage and the first voltage and the difference of the second current and the first current. | 02-23-2012 |
20120046893 | BATTERY VOLTAGE MONITORING DEVICE - A battery controller | 02-23-2012 |
20120046894 | Method and System for Minimizing the Accumulated Offset Error for an Analog to Digital Converter - A method and system utilized with an analog to digital converter is disclosed. The method and system comprise providing a first conversion on an input signal. In the first conversion, an offset error is added to the input signal to provide a first result. The method and system further includes providing a second conversion on the input signal. In the second conversion, an offset error is subtracted from the input signal to provide a second result. The first and second results are then combined to substantially remove the offset error. A system and method in accordance with the present invention compensates for the accumulated offset error over many samples, thereby achieving much higher accuracy in the offset error compensation. | 02-23-2012 |
20120065909 | TIME DAMPENED CHARGING INDICATOR - Systems and methods to determine a power pack charging state. A difference between a first power pack capacity of a power pack at a first time and a second power pack capacity of the power pack at a second time is estimated, where the second time is a time duration after the first time. A determination is made that the charging state is “not charging” if the power pack capacity decreases between the two times. A determination is made that the charging state is “charging” if the power pack capacity increases between the two times. If a change in power pack capacity is not observed between the two times, the power pack charging state of the previous determination is used. Various techniques are used to determine the difference in power pack charging state. | 03-15-2012 |
20120072144 | METHOD AND APPARATUS FOR ESTIMATING SOC OF A BATTERY - A method of determining a state-of-charge for a battery is provided. A startup state-of-charge of the battery is determined as a function of a present open circuit voltage measurement for a present ignition startup, at least one open circuit voltage observation of a previous ignition startup, and a current draw integration over a time period from a previous ignition startup event to a present ignition startup event. A run state-of-charge change of the battery is determined for an ignition key-on operation. The run state-of-charge change comprises a difference between the present open circuit voltage measurement and the at least one previous open circuit voltage observation, and is determined in response to of a current draw integration over a respective period of time. The state-of-charge of the battery is calculated based on a function of the startup state-of-charge and the run state-of-charge change of the battery. | 03-22-2012 |
20120072145 | Method and Apparatus for Estimating Battery Capacity of a Battery - A method is provided for determining a battery capacity for a vehicle battery. Open circuit voltages of a vehicle battery are measured during ignition startups. A battery parameter is estimated for the vehicle battery that is a function of a present open circuit voltage measurement for a present ignition startup, a function of at least one open circuit voltage observation of a previous ignition startup, a function of a current draw integration over a time period from a previous ignition startup event to a present ignition startup event, and a function of an adjustment factor. A battery parameter is determined based on a new battery. The battery capacity is calculated as function of the battery parameter for the vehicle battery and the battery parameter for the new battery. | 03-22-2012 |
20120072146 | METHOD AND APPARATUS FOR DETECTING STATE OF CHARGE OF BATTERY - A method for detecting a state of charge (SOC) of a battery is disclosed. The method includes inputting a pulse to the battery for receiving a response curve of the battery associated with the pulse inputted to the battery, determining a set of parameters for preparing a simulated curve, comparing a difference between the response curve and the simulated curve, determining whether the difference between the simulated curve and the response curve is less than a predetermined threshold before further utilizing the parameters to determine the SOC from a corresponding relationship. | 03-22-2012 |
20120078549 | APPARATUS AND METHOD FOR ESTIMATING STATE OF HEALTH OF BATTERY OF VEHICLE - An apparatus and a method for estimating the SOH of a battery of a vehicle are provided, in which degree of deterioration of the battery is estimated from temperature change and traveling distance. Accordingly, the SOH of the battery and remaining traveling distance can be accurately estimated. | 03-29-2012 |
20120078550 | System And Method For Displaying Battery String Cell Data In Polar Coordinate Graphical Form - In accordance with an aspect of the present disclosure, battery string cell data obtained by a battery monitor monitoring the battery string is transmitted to a computer by the battery monitor. The computer has a display coupled to it. The computer displays the battery string cell data for each battery string in graphical form in a polar coordinate graphical image with data for a plurality of battery strings being displayed simultaneously, each in its own polar coordinate graphical image. | 03-29-2012 |
20120078551 | Battery Detector for Portable Electronic Device and Method Thereof - Various embodiments of a battery detector are provided. In one aspect, a battery detector of a portable electronic device is applied to a battery module without an identification (ID) terminal. When the portable electronic device receives a direct current (DC) voltage provided by an external transformer to conduct a startup procedure, the battery detector detects whether the battery module is connected to the portable electronic device or not, and prevents the portable electronic device from conducting erroneous operations. | 03-29-2012 |
20120078552 | IN-SITU BATTERY DIAGNOSIS METHOD USING ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY - Method of estimating the internal state of an electrochemical system for electric power storage, such as a battery. | 03-29-2012 |
20120078553 | BATTERY CHARGE AMOUNT INCREASE FACILITY INFORMATION PROVISION DEVICE AND METHOD - A battery charge amount increase facility information provision device provides information relating to a battery charge amount increase facility to a vehicle installed with a battery ( | 03-29-2012 |
20120084032 | IDENTIFYING AND AMERLIORATING A DETERIORATING CONDITION FOR BATTERY NETWORKS IN-SITU - A temperature is measured for each terminal of the battery unit. The magnitude and sign of a temperature differential is calculated from the temperatures. The temperature differential is then correlated to a deteriorating condition of the battery unit. | 04-05-2012 |
20120089352 | MODULAR DEVICE FOR PROTECTING AND MONITORING A BATTERY - A modular device having at least one master integrated circuit, and one or more slave integrated circuit modules coupled to the at least one master integrated circuit with each slave integrated circuit module of the one or more slave integrated circuit modules coupled to and associated with only a single cell of the battery. Each slave integrated circuit module of the one or more slave integrated circuit modules further comprises: detection circuitry adapted to detect data comprising one or more of the temperature, voltage or charge status, and malfunctioning of the single cell associated with and monitored by the slave integrated circuit; and an interface operable to send said detected data to the at least one master integrated circuit. The at least one master integrated circuit is adapted to send commands to a slave integrated circuit module in response to the detected data detected by the slave integrated circuit module. | 04-12-2012 |
20120089353 | METHODS OF INVERSE DETERMINATION OF MATERIAL PROPERTIES OF AN ELECTROCHEMICAL SYSTEM - A method of determining at least one material property of at least one component of an electrochemical system (fully or partially completed) using a process to reduce a difference of a performance characteristic between a numerical simulation result of a physical model and an empirical result. The method includes providing an electrochemical cell using a thin film process and performing a plurality of tests on the electrochemical cell to identify one or more target performance characteristics of the electrochemical cell. The method includes performing a surrogate based analysis process and determining a plurality of outputs of the surrogate based analysis function and determines a value of the unknown material property. | 04-12-2012 |
20120101753 | ADAPTIVE SLOWLY-VARYING CURRENT DETECTION - A system and method for determining whether an onboard estimation process, such as a recursive least squares regression process, can effectively calculate the state-of-charge of a battery. The method includes defining a current sample time and a previous sample time and measuring the battery current. The method then calculates a variation moving average of the measured current and an index of current change rate determined by averaging the absolute value of the current variation moving average using the measured current and calculated moving averages from the previous sample time. The method then determines if the current change index is greater than a predetermined threshold, and if so, the estimate of the battery state-of-charge resulting from the onboard estimation process is valid. | 04-26-2012 |
20120101754 | METHOD OF ESTIMATING REMAINING CONSTANT CURRENT/CONSTANT VOLTAGE CHARGING TIME - Method, apparatus, and computer program product embodiments are disclosed for estimating the remaining charging time of a rechargeable battery. An example embodiment of the invention comprises a method comprising the steps of determining if the battery charging point is in a constant current phase or in a constant voltage phase; if the battery charging point is in the constant current phase, calculating a time remaining to charge in the constant current phase based on the constant current phase charging characteristics and a time remaining to charge in the constant voltage phase based on the constant voltage phase charging characteristics; and if the battery charging point is in the constant voltage phase, calculating a time remaining to charge in the constant voltage phase based on the constant voltage phase charging characteristics. | 04-26-2012 |
20120101755 | VEHICULAR BATTERY PACK - A battery pack includes a battery module that charges and discharges electricity to be used to drive a vehicle, and a monitoring controller for monitoring charge of the battery module. The monitoring controller stores past charge records and past discharge records in a charge-discharge history. Based on an analysis of learning data of a charge-discharge cycle in the charge-discharge history, the monitoring controller determines a charge operation, which may either be a normal charge or a quick charge, for charging the battery. The normal charge provides a charging electric current per unit time that is less than the charging current per unit time of the quick charge. | 04-26-2012 |
20120109554 | ONBOARD ADAPTIVE BATTERY CORE TEMPERATURE ESTIMATION - Methods and systems for dynamically estimating the core temperature of at least one cell in a battery. In one aspect, the method includes using a combination of estimations including one based on ohmic resistance and another based on a function of thermal energy transfer through the battery. A weighting factor may be used for each of the estimations as a way to calculating a core temperature. The estimation based on ohmic resistance may be made determined independently of a measured surface temperature of the battery or any of the cells in the battery. | 05-03-2012 |
20120109555 | ADAPTIVE RATING FOR BACKUP POWER SUPPLY - Systems and methods of an adaptive rating for a backup power supply are disclosed. An exemplary method includes measuring electrical output for a load. The method also includes determining an adaptive rating for at least one battery module of a backup power supply. The method also includes storing changing adaptive ratings for the at least one battery module over time based on the measured electrical output for the load. | 05-03-2012 |
20120109556 | BAND SELECT STATE OF CHARGE WEIGHTED SCALING METHOD - A method and system for selectively using a voltage-based state of charge estimate in an overall state of charge calculation. Regions or bands of battery pack state of charge are established, where in some regions, open circuit voltage is known to be a good indicator of state of charge, and in other regions, open circuit voltage is known to be a poor indicator of state of charge due to a high sensitivity to measurement error. In regions or bands where voltage-based state of charge is expected to be accurate, the voltage-based state of charge estimate may be used to scale or adjust a current-based state of charge estimate, thus avoiding a continuous accumulation of error in the current-based estimate. In regions or bands where voltage-based state of charge is known to be prone to error, only current-based state of charge information is used. | 05-03-2012 |
20120109557 | METHOD FOR CALIBRATING AN ELECTROCHEMICAL BATTERY - Method for calibration of an electrochemical accumulator, characterized in that it comprises a phase (P | 05-03-2012 |
20120116699 | ANALYZING AND CONTROLLING PERFORMANCE IN A COMPOSITE BATTERY MODULE - A method for performance analysis and use management of a battery module is disclosed, wherein the battery module includes a multitude of interconnected battery cells and a battery management system with a plurality of dedicated analysis/control units (ACUs) that analyze performance of the battery module, the ACUs being assigned to individual battery cells and/or battery blocks of battery module. The method includes measuring current and voltage of one or more of an individual battery cell and a battery block; calculating a charge removal from the one or more of the individual battery cell and the battery block; calculating a loading charge of the one or more of the individual battery cell and the battery block; determining the remaining charge of the one or more of the individual battery cell and the battery block; and failure monitoring of the one or more of the individual battery cell and the battery block. | 05-10-2012 |
20120116700 | Battery-capacity supervisory control device and method thereof - A battery-capacity supervisory control device includes a DC current/DC voltage detecting loop, a microprocessor and a display unit. The DC current/DC voltage detecting loop is connected between a battery and a power inverter for detecting a first voltage value before the battery electrically discharges, and a second voltage value as well as an output current value of the battery after electrically discharging for a time unit of the battery, to calculate the available capacity of the battery and to calculate the available time of the battery under loading according to the available capacity of the battery through the microprocessor. The display simultaneously displays the available time of the battery under loading and the available capacity of the battery. Therefore, a user effectively supervises and assures the battery is in the usable state. | 05-10-2012 |
20120116701 | METHOD AND DEVICE FOR DIAGNOSING SECONDARY BATTERY DEGRADATION - During charging of a secondary battery, a rate of voltage change dV/dt is obtained when a voltage V of the secondary battery reaches a predetermined voltage V | 05-10-2012 |
20120123712 | DETERMINING REMAINING LIFE FRACTION FOR BATTERY NETWORKS IN-SITU - Determination of a remaining life fraction for a network of batteries during use in an electrical circuit is disclosed. A state of health of the battery network can be determined by measuring a change in impedance characteristics of the individual battery units and/or the battery network as a whole. More specifically, a mode and a severity of a failure can be determined for individual battery units. | 05-17-2012 |
20120130660 | Battery Life Monitor System and Method - An apparatus includes a battery, a plurality of circuit components operable independently, and a controller coupled to the battery and the plurality of circuit components and configured to control operation of the plurality of circuit components. The apparatus further includes a power consumption monitor coupled to the controller and configured to calculate a remaining battery life of the battery based on at least one operating time of a corresponding at least one of the plurality of circuit components. | 05-24-2012 |
20120130661 | BATTERY MONITORING DEVICE AND BATTERY MONITORING METHOD - A battery monitoring device includes a detecting unit which detects a voltage value, a current value and a temperature of a secondary battery, a charging time computing unit which computes a charging time of the battery by using the voltage value, the current value and the temperature detected by the detecting unit, and a determining unit which determines a charging state of the battery. The charging time computing unit is configured to compute a fully charged time of the battery based on a first charging ratio, a constant-current charging ratio, and a second charging ratio. | 05-24-2012 |
20120130662 | METHOD FOR CHARACTERIZING AN ELECTRIC BATTERY - A determination of particular parameters for modeling a battery such as a lithium-ion battery, for example the charge transfer resistance and the double layer behavior at the surface of electrical connections, by extrapolating results obtained in a stationary mode, for example without charge or discharge current, to quick charge or discharge modes, where traditional measurements are too slow, since the parameters vary as a function of the charge or discharge state. | 05-24-2012 |
20120136594 | DYNAMIC BATTERY CAPACITY ESTIMATION - A method of determining a state of health of a battery in real time includes estimating a parameter value associated with the state of health of the battery and determining one or more of a terminal voltage, an accumulated charge, a state of charge, and a temperature of the battery. The method further includes determining, via a computing device, a reserve capacity of the battery based at least in part on the estimated parameter value and one or more of the terminal voltage, the accumulated charge, the state of charge, and the temperature of the battery. | 05-31-2012 |
20120136595 | BATTERY DIFFUSION VOLTAGE ESTIMATION - A method includes estimating a first diffusion voltage value of a battery by selecting the first diffusion voltage value from a look-up table, estimating a second diffusion voltage value of the battery using an estimation procedure, selecting at least one of the estimated first and second diffusion voltage values, and determining an open circuit voltage of the battery based at least in part on the selected diffusion voltage value. The method may be implemented by a computing device in a vehicle. | 05-31-2012 |
20120143541 | SYSTEM AND METHOD FOR DETECTING COUNTERFEIT AND DEFECTIVE BATTERIES USING BATTERY CHARACTERISTIC PROFILES - Systems and methods are disclosed for detecting whether a battery in an electronic device is counterfeit or defective. An actual battery characteristic profile is generated by recording the performance of the battery during use of the battery by the device. This profile is then compared to its corresponding expected characteristic profile. If the profiles are not substantially similar (i.e. if the error between the two curves exceeds a given error threshold), the battery is determined to be counterfeit or defective and responsive action is taken. | 06-07-2012 |
20120143542 | STATE-OF-CHARGE ESTIMATION METHOD AND BATTERY CONTROL UNIT - A SOC (state of charge) estimation method for a rechargeable battery includes: measuring a battery parameter of the rechargeable battery; judging whether the battery parameter of the rechargeable battery is stable; if the battery parameter of the rechargeable battery is not stable yet, estimating an open circuit voltage of the rechargeable battery by a fuzzy control and expanding an established experiment data of the rechargeable battery into a 3D function by the fuzzy control; and calculating a time domain dynamic equation and converting into a SOC function, substituting the SOC function into the fuzzy control to estimate an SOC estimation value, wherein the time domain dynamic equation performing a time domain dynamic monitor. | 06-07-2012 |
20120143543 | MEASURING DEVICE AND ELECTRONIC APPARATUS USING THE SAME - A measuring device includes a number of detectors and a processing unit. The detectors are used for detecting a supply voltage of a power source, and respectively generating a number of detecting signals. The processing unit is used for determining whether each of the detecting signals is at a first level or a second level, calculating a total number of the first level detecting signals, and acquiring a current power level of the power source according to the total number. | 06-07-2012 |
20120150464 | AUTOMATIC DETERMINATION OF BASELINES FOR BATTERY TESTING - Baseline values for battery testing are automatically determined for individual batteries, battery cells, or networks of batteries. Impedance information is obtained from individual batteries and adjusted for operating conditions at a site of use (e.g., temperature, age, connection topology and user-entered information). Population-referenced baselines are automatically calculated from the group of individual-referenced baselines. All baselines can be continually updated and improved. SOC and SOH characteristics of batteries in the network can be automatically determined by comparison of measured impedance, and other, values to said baselines. | 06-14-2012 |
20120150465 | ELECTRONIC DEVICE, BATTERY PACK, AND METHOD OF COMPUTING BATTERY PACK CAPACITY - An electronic device includes a battery capacity computing unit configured to compute the current full-charge capacity of a currently inserted battery apparatus having secondary cells. The battery capacity computing unit acquires at least information on the full-charge capacity of the battery apparatus in a brand-new state and information on the battery charge/discharge cycle count from the battery apparatus, retains a correction coefficient used when computing the current full-charge capacity of the battery apparatus, and calculates the current full-charge capacity of the battery apparatus using the information on the full-charge capacity of the battery apparatus in a brand-new state, the information on the battery charge/discharge cycle count, and the correction coefficient. | 06-14-2012 |
20120158330 | MONITORING SYSTEM FOR LITHIUM ION SECONDARY BATTERY AND MONITORING METHOD THEREOF - A monitoring system for a lithium ion secondary battery which detects deterioration of the lithium ion secondary battery accurately is provided. The monitoring system for a lithium ion secondary battery ( | 06-21-2012 |
20120166116 | APPARATUS FOR CALCULATING RESIDUAL CAPACITY OF SECONDARY BATTERY - An apparatus for calculating a residual capacity of a secondary battery is provided. The apparatus calculates the residual capacity of energy in the secondary battery which is charged/discharged. The apparatus includes an arithmetic unit which estimates and calculates a first residual capacity based on a charge/discharge voltage corresponding to a residual capacity of the secondary battery, calculates a second residual capacity based on an integrated value of a charge/discharge current of the secondary battery, weights the charge/discharge voltage of the secondary battery with the first residual capacity or the second residual capacity according to the voltage changing rate, and combines the results of the weighting to obtain the residual capacity of the secondary battery. | 06-28-2012 |
20120173179 | CHARGE STATE DETECTING DEVICE FOR BATTERY PACK AND METHOD FOR DETECTING CHARGE STATE - A total SOC of a battery pack including a collection of a plurality of battery blocks is calculated based on a plurality of block SOCs representing respective stored charge amounts in the plurality of battery blocks. In the case where a block SOC maximum value is higher than a control upper limit value, the total SOC is calculated to be higher than the control upper limit value. On the other hand, in the case where a block SOC minimum value is lower than a control lower limit value, the total SOC is calculated to be lower than the control upper limit value. Further, in the case where each of the block SOCs is in a range of not less than the control lower limit value and not more than the control upper limit value, the total SOC is determined to fall within the range of not less than the control lower limit value and not more than the control upper limit value. | 07-05-2012 |
20120179398 | NONAQUEOUS ELECTROLYTE TYPE LITHIUM ION SECONDARY BATTERY SYSTEM, METHOD OF DETERMINING LITHIUM DEPOSITION IN THE SYSTEM, AND VEHICLE MOUNTING THE SYSTEM - It is arranged to obtain charging voltage when charging voltage is applied to a nonaqueous electrolyte type lithium ion secondary battery and discharging voltage when a discharging current is generated by the battery. A coefficient of a quadratic term of an approximated curve of a quadratic function with respect to changes in value within a sampling period for each of the charging voltage and the discharging voltage is calculated. This calculation is repeated over a plurality of the sampling periods. Based on occurrence situations of symmetry phenomenon and intersection phenomenon in the calculated coefficients, it can be determined whether or not there is a possibility of lithium deposition without disassembling the battery. | 07-12-2012 |
20120179399 | BATTERY SYSTEM AND ENERGY STORAGE SYSTEM INCLUDING THE SAME - A battery system having components with reduced maximum voltage tolerance requirements is disclosed. The battery system includes a battery pack with battery modules, and measuring units, which are connected to the battery modules. The measuring units have first analog front ends (AFEs) for monitoring the at least two battery modules. Each first AFE is configured to transmit information related to the monitored characteristic via an isolator to a processor configured to control the battery pack based on the transmitted information. The isolator receives the transmitted information from an AFE which is not connected to the battery module having the least electric potential or to the battery module having the greatest electric potential. | 07-12-2012 |
20120185186 | Temperature Sensing of Electric Batteries - Methods and apparatus are provided related to thermal protection of electrical batteries. A sensor senses the temperature of a battery and a corresponding digital signal is digitally derived. Date, time and temperature data are written to storage media. A time-rate-of-change of the battery's temperature is determined and used to establish operational periodicity. Stored digital data can be communicated to another entity, temperature or time-rate-of-change values used to trigger an alarm or system shut-down, and so on. Electronic circuitry toggles between an active mode and a power-conserving sleep mode in accordance with periodic operating schedule. | 07-19-2012 |
20120185187 | COMMUNICATIONS SYSTEM - An apparatus and method for monitoring energy storage devices is disclosed. A monitoring system that monitors an energy storage device collects and stores operating data from the device and relays that data through a communications system to one or more servers. The servers can store the operating data from each of the monitored energy storage devices. | 07-19-2012 |
20120185188 | SYSTEM AND METHOD FOR TESTING INTERNAL RESISTANCE OF BATTERY IN AN ELECTRONIC DEVICE - A system and method for testing an internal resistance of a battery in an electronic device include reading a first voltage of the battery in the electronic device, under the condition that the electronic device is in a standby state. The testing method further includes reading a second voltage of the battery, under the condition that a power transmission of the electronic device is at a maximum, and calculating the internal resistance of the battery according to the first voltage and the second voltage. | 07-19-2012 |
20120185189 | COMPUTING DEVICE AND METHOD FOR TESTING CHARGING AND DISCHARGING RELIABILITY OF RECHARGABLE BATTERY - In a method for testing the charging and discharging reliability of a rechargeable battery, a test device measures the battery to obtain first terminal voltages and first electric currents when the battery is charged by a power supply. After the battery is discharged, the test device measures the battery to obtain second terminal voltages and second electronic currents. Based on the first terminal voltages and the first electric currents, a first lifecycle curve can be created. Based on the second terminal voltages and the second electric currents, a second lifecycle curve is created. The method compares the first lifecycle curve with a charging lifecycle curve, compares the second lifecycle curve with a discharging lifecycle curve, and generates a lifecycle estimation report of the rechargeable battery according to the comparison results. | 07-19-2012 |
20120185190 | RESIDUAL QUANTITY DISPLAY SYSTEM - A microcomputer in a device body operates so as to store every update of a maximum discharge current value (I | 07-19-2012 |
20120185191 | PORTABLE EQUIPMENT, NOTIFICATION METHOD AND NOTIFICATION PROGRAM - A portable equipment ( | 07-19-2012 |
20120191388 | DIAGNOSTIC METHOD TO CHECK FOR STUCK BITS IN STORAGE REGISTERS OF SAFETY-CRITICAL SYSTEMS - Method to verify proper operation of battery monitor shift register(s). The method may be implemented on an individual battery monitor or within a system of battery monitors. Battery monitor shift register(s) may be configured to store predetermined test patterns upon start up or reset. The contents of the battery monitor shift registers may be shifted out serially to a processor or controller, which may compare the read out data to a local copy of the predetermined test pattern. If the patterns do not match, the processor or controller may indicate an error condition. | 07-26-2012 |
20120191389 | Method and Device for Determining a Charge State of a Battery with the Aid of a Fluxgate Sensor - A method for determining the charge state of a battery in a motor vehicle includes steps of applying a measuring voltage to a coil, cyclically reversing the polarity of the measuring voltage if the absolute value of the secondary current flowing through the coil exceeds a predetermined threshold value, scanning the secondary current, reconstructing the curve of the secondary current based on the scanned secondary current values, and determining the charge state based on the curve of the secondary current values. | 07-26-2012 |
20120191390 | APPARATUS FOR ESTIMATING OPEN CIRCUIT VOLTAGE OF BATTERY, APPARATUS FOR ESTIMATING STATE OF CHARGE OF BATTERY, AND METHOD FOR CONTROLLING THE SAME - An apparatus for estimating an OCV of a battery includes a voltage sensing unit for measuring a battery output voltage; a temperature sensing unit for measuring a battery temperature; a data storing unit for periodically receiving the battery output voltage and temperature data from the sensing units and storing the data in a memory; an OCV variation estimating unit for calculating an OCV variation from a varying pattern of battery output voltages measured in the past and at the present, stored in the memory, by applying a mathematical model defining a correlation between the varying pattern and the OCV variation, and estimating an OCV at a current stage by reflecting a correction factor corresponding to the battery temperature on the calculated OCV variation; and an OCV estimating unit for estimating an OCV at the current stage by reflecting the estimated OCV variation on the OCV estimated at a last stage. | 07-26-2012 |
20120203482 | DIAGNOSTIC METHOD TO MONITOR BATTERY CELLS OF SAFETY-CRITICAL SYSTEMS - System and method to detect battery cell malfunctions through redundant offset battery cell monitoring. Redundant battery monitoring may be implemented in a battery monitoring system to process battery cell voltages at offset times. A processor may compare offset voltage samples for a particular battery cell. If the samples vary outside a predetermined range, the processor may indicate a battery cell malfunction. | 08-09-2012 |
20120203483 | Method and Circuitry to Calculate the State of Charge of a Battery/Cell - The present inventions, in one aspect, are directed to techniques and/or circuitry to determine the state of charge of a battery/cell using data which is representative of an overpotential of the battery/cell. In yet another aspect the present inventions are directed to techniques and/or circuitry to adaptively charge a battery/cell using data which is representative of a state of charge of the battery/cell and/or the data which is representative of an overpotential of the battery/cell. | 08-09-2012 |
20120203484 | BATTERY FUEL GAUGE CIRCUIT - A detection circuit is mounted on an electronic device having a communication function, including at least a battery, a CPU, and a communication unit, and is configured to detect the remaining battery charge. An A/D converter performs sampling of a magnitude of a current I | 08-09-2012 |
20120209550 | PERFORMANCE MONITORING OF INDIVIDUAL HYDROCYCLONES USING SONAR- BASED SLURRY FLOW MEASUREMENT - Apparatus, including a signal processor, featuring at least one module configured to respond to signals containing information about sound propagating through a slurry flowing in part, including overflow pipes, of cyclones operating in parallel on a cyclone battery, and determine the performance of individual cyclones based at least partly on the information contained in the signals. The signal process may form part of a non-invasive acoustic-based passive monitoring system, comprising: cyclones and sensors; where the cyclones are configured in parallel to form a cyclone battery in order to process a slurry, each cyclone having an overflow pipe for providing some portion of the slurry flowing in the cyclone battery, where each sensor is configured to mount on a respective overflow pipe of a respective cyclone, to respond to sound propagating through the slurry flowing in the respective overflow pipe of the respective cyclone, and to provide a respective signal containing information about the sound propagating through the slurry flowing in the respective overflow pipe of the respective cyclone; and where the signal processor is configured to respond to respective signals from the sensors and determine the performance of individual cyclones based at least partly on the information contained in the respective signals. | 08-16-2012 |
20120209551 | STATE ESTIMATION METHOD AND STATE ESTIMATION APPARATUS OF ELECTRIC STORAGE ELEMENT - A method includes the steps of calculating the temperature of a reference point in an electric storage element by using a detected temperature by a temperature sensor attached to an outer face of the electric storage element and a heat conduction equation, and estimating the internal state of the electric storage element by using the calculated temperature of the reference point. The reference point is a lattice point at which a temperature associated with the internal resistance of the electric storage element is shown, out of a plurality of lattice points provided in the electric storage element. | 08-16-2012 |
20120215471 | METHOD AND SYSTEM FOR DETERMINING A STATE OF CHARGE OF A BATTERY - Methods and systems are provided for determining a state of charge of a battery. A magnetic force between the battery and a magnet is detected. The state of charge of the battery is determined based on the detected magnetic force. | 08-23-2012 |
20120215472 | NONAQUEOUS ELECTROLYTE SOLUTION TYPE LITHIUM ION SECONDARY BATTERY SYSTEM, METHOD FOR DETERMINING LITHIUM DEPOSITION IN THAT SYSTEM, AND VEHICLE PROVIDED WITH THAT SYSTEM - A battery system includes a discharge amount obtaining portion that obtains a discharge amount (determination zone discharge amount) from a determination start voltage until a predetermined determination end voltage of a battery; an internal resistance obtaining portion that obtains an internal resistance value of the battery; a correlation map in which a combination of internal resistance value information and determination zone discharge amount information for a battery that is the same kind as a target of a determination and in which lithium deposition has not occurred is stored for each degree of age-related deterioration of the battery; and a deposition determining portion that determines a degree of lithium deposition in the target battery by comparing the determination zone discharge amount during the determination of the target battery with the internal resistance value during the determination of the target battery on the same scale by converting at least one via the correlation map. | 08-23-2012 |
20120221266 | TEST SYSTEM AND METHOD OF TESTING BATTERY PACK - A test system to test a battery pack includes a power supply, a high-frequency-voltage application unit, a splitter, a first coupling capacitor, a second coupling capacitor, a ground, and a data logger. The power supply supplies power to a battery management unit of the battery pack. The splitter includes an input terminal, and first and second output terminals. The high-frequency-voltage application unit outputs a high-frequency voltage to the input terminal of the splitter. The first coupling capacitor is provided between the first output terminal and a positive-electrode terminal of the battery pack. The second coupling capacitor is provided between the second output terminal and a negative-electrode terminal of the battery pack. An earth terminal of the high-frequency-voltage application unit and one of power-supply input terminal of the battery pack are connected to the ground. The data logger records data outputted from a data-output terminal of the battery management unit. | 08-30-2012 |
20120221267 | ESTIMATION APPARATUS AND ESTIMATION METHOD - An estimation apparatus has a controller which estimates an internal reaction of a secondary battery. The controller calculates a voltage drop amount due to an internal resistance of the secondary battery by using an expression (I): | 08-30-2012 |
20120226455 | Anomalously Charged State Detection Device and Test Method for Lithium Secondary Cell - A lithium secondary cell has a positive electrode, a negative electrode, and an electrolyte including lithium ions. An anomalously charged state detection device includes: a voltage detection unit; a current detection unit; a calculation unit that calculates the electricity amount Q charged into or discharged from the lithium secondary cell and a differential value dV/dQ for each predetermined time period t, and that obtains a Q-dV/dQ curve; a measured data storage unit that stores the Q-dV/dQ curve; a cell data storage unit that stores a Q-dV/dQ curve during normal conditions; and a control unit that decides that the lithium secondary cell is in an anomalously charged state if, in the Q-dV/dQ curve stored by the measured data storage unit, a peak is present that is different from a peak that appears in the Q-dV/dQ curve during normal conditions. | 09-06-2012 |
20120239325 | BATTERY CAPACITY ESTIMATION - A method comprising obtaining a voltage sample of a battery; converting the voltage sample to a battery capacity; calculating an average battery capacity based on averaging battery capacity values stored in a buffer; converting the average battery capacity to a voltage; calculating a current consumption based on the voltage sample and the voltage, wherein the current consumption corresponds to current consumed during a sampling period of the voltage sample; calculating a voting factor based on the current consumption; calculating a battery capacity difference based on a difference between the average battery capacity and the battery capacity; determining whether the battery capacity difference is greater than zero; and storing the average battery capacity in the buffer, a number of times, corresponding to the voting factor, when the battery capacity difference is equal to or less than zero. | 09-20-2012 |
20120245871 | BATTERY TESTER WITH HIGH PRECISION - The battery tester has a casing having an input device and two detecting wires, a microprocessor, a loading unit and a battery power status detecting unit. The microprocessor builds a strategic decision process therein to determine a loading time for a battery according to the battery capacity, battery voltage and detection requirements having 1/N CCA and a loading time input from the input device. Therefore, the battery tester detects batteries with different capacities and has accurate detecting results. | 09-27-2012 |
20120253713 | ESTIMATING THE CAPACITY OF A LI-ION BATTERY BASED ON INITIAL PART OF THE DISCHARGE CURVE - A system and method for testing a battery is provided. A load is connected in electrical series connection with the battery. A sensor may be in communication with the battery for measuring a battery discharge curve. A processor monitors an output of the battery and determines a battery status based on a slope of an initial portion of the battery discharge curve. | 10-04-2012 |
20120253714 | BATTERY VOLTAGE MEASUREMENT - An apparatus is provided that includes a first circuit to determine when a battery current falls below a threshold, a second circuit to measure a battery voltage and current in response to the first circuit determining that the battery current falls below the threshold, and a third circuit to store the measured battery voltage and current. | 10-04-2012 |
20120253715 | ELECTRIC CHARGING SYSTEM - In an electric charging system, an electric charger and an electric vehicle is connected via a charging cable, and charging power is provided to a battery of the electric vehicle via the charging cable. The electric charger calculates a voltage drop based on a supply current Is of the electric charger and an electric resistance of the charging cable. The electric charger compares a supply voltage of the electric charger with a determination value, and, if the supply voltage reaches the determination value, determines that the battery is charged to a fully-charged state. The determination value is updated by adding the voltage drop to a preset determination base value so as to take the voltage drop of the charging cable into account. | 10-04-2012 |
20120253716 | BATTERY VOLTAGE DETECTOR - A battery voltage detector includes a voltage detection circuit and a voltage processor. The voltage detection circuit includes a capacitor, a pair of output terminals and an output switch. A power source voltage is supplied from a power source to a higher voltage output terminal of the pair of output terminals in the voltage detection circuit. While the output switch is turned off, the voltage processor takes in a voltage between the output terminals as a voltage for determining a defect and determines whether or not a false detection of the cell voltage has occurred based on the voltage for determining the defect. | 10-04-2012 |
20120253717 | BATTERY VOLTAGE DETECTOR AND BATTERY VOLTAGE DETECTING METHOD - A battery voltage detector includes: a voltage detection circuit; a voltage processor; and a power voltage. The voltage detection circuit is configured to detect a cell voltage of a battery cell. The voltage processor is configured to perform analog-to-digital conversion on the cell voltage with a predetermined period to collect cell voltage detection data. The power voltage monitoring circuit is configured to determine whether or not an instantaneous variation of an externally-supplied power voltage occurs, and output an instantaneous variation detection signal indicating a result of detection to the voltage processor. If the voltage processor detects based on the instantaneous variation detection signal that the instantaneous variation of the externally-supplied power voltage occurs, the voltage processor is configured to delete the cell voltage detection data that is the newest. | 10-04-2012 |
20120259567 | INTELLIGENT BATTERY PACK - The present relates to a battery pack adapted for receiving battery cells, and alternately to a battery pack comprising the battery cells. The present battery pack comprises an energy output, an energy input and a controller. The energy output outputs energy from the at least one battery cell. The energy, input receives energy for recharging the at least one battery cell, and the controller controls. the energy received from the energy input for recharging the at least one battery cell. | 10-11-2012 |
20120259568 | ELECTRONIC DEVICE WITH BATTERY CAPACITY DETECTING FUNCTION AND BATTERY CAPACITY DETECTING METHOD THEREOF - An electronic device with a battery capacity detecting function is provided. The electronic device detects an actual voltage of the battery every first preset time interval, calculates a weighted average voltage within a second preset time interval according to all the detected actual voltages within the second preset time interval, and determines a battery capacity according to the calculated weighted average voltage. A method for detecting a battery capacity of an electronic device is also provided. | 10-11-2012 |
20120259569 | DIAGNOSIS SYSTEM AND DIAGNOSIS METHOD FOR LITHIUM ION SECONDARY BATTERY - Manufacturing management information relating to a module battery and single battery mounted therein which are obtained in a battery manufacturing process ( | 10-11-2012 |
20120265461 | ELECTRONIC DEVICE AND SYSTEM TIME SETTING METHOD THEREOF - A system time setting function for an electronic device includes a battery module, a clock module, a processing module and a storage module. The battery module includes a battery gauge integrated chip which times in cycles and measuring a remaining battery capacity. The clock module generates a system time T | 10-18-2012 |
20120265462 | METHOD AND APPARATUS FOR DETERMINING DETERIORATION OF SECONDARY BATTERY, AND POWER SUPPLY SYSTEM THEREWITH - A method for detecting SOC and SOH of a storage battery includes: calculating an SOC value of the storage battery with use of an SOC calculation unit based on a measured voltage value or a measured current value of the storage battery and calculating an SOH value of the storage battery with use of an SOH calculation unit based on the SOC value; further calculating a new SOC value with use of the SOC calculation unit based on the SOH value and calculating a new SOH value with use of the SOH calculation unit based on the new SOC value, these further calculations of SOC value and SOH value being repeated a prescribed n times of at least one so as to obtain an nth calculated SOC value and an nth calculated SOH value; outputting the nth calculated SOH value as an SOH output value and outputting the nth calculated SOH value as an SOC output value; and storing the SOH output value into a memory. | 10-18-2012 |
20120271577 | MATERIAL PROPERTY TESTING DEVICES WITH CAPABILITIES OF MONITORING ENERGY-CONSUMPTION AND DETECTING THE ENVIRONMENT - A material property testing device with capabilities of energy-consumption monitoring and environment detecting the device including a processing unit, which intercommunicates with the testing unit and the storage unit; the input end of the processing unit connects with an energy monitoring device and an environment detecting unit; the energy monitoring device is installed in a power supply module to monitor the electricity consumption conditions and sends the energy consumption data to the processing unit; the environment detecting unit adopts a detection sensor to detect the environment conditions and sends the environmental information to the processing unit. | 10-25-2012 |
20120271578 | BATTERY MANAGEMENT SYSTEM - A battery management system includes a neural network, for estimating an amount of charge stored in a battery following a recharging operation. Then, an amount of charge drawn during a discharging operation is subtracted from this estimated amount of charge to derive an estimate for the state of charge of the battery at a present time. A parameter representing the state of health of the battery may be provided as an input to the neural network, and the parameter representing the state of health of the battery may be generated by a second neural network. | 10-25-2012 |
20120290234 | SYSTEMS AND METHODS FOR DETERMINING CELL CAPACITY VALUES IN A MULTI-CELL BATTERY - Systems and methods to determine cell capacities of a vehicle battery pack. Cell capacities may be determined using state of charge (SOC) estimates for the cells and a charge count for the battery pack. The SOC estimates may be determined when the SOC of the battery pack is below a lower threshold and above an upper threshold. Error values may also be generated for the cell capacity values. | 11-15-2012 |
20120290235 | SYSTEMS AND METHODS FOR DETERMINING THE STATE OF CHARGE OF A BATTERY UTILIZING CONFIDENCE VALUES - Systems and methods to determine a state of charge (SOC) of a battery using confidence values. SOC estimations are determined using a voltage-based estimation strategy and a current-based estimation strategy. Confidence values are also generated for the voltage-based SOC estimation and the current-based SOC estimation to quantify the amount of uncertainty associated with the SOC estimations. An overall SOC estimation is determined by comparing the confidence values and selecting the SOC estimation having the least amount of uncertainty. | 11-15-2012 |
20120290236 | BATTERY CONDITION DETECTING APPARATUS - There is provided a battery condition detecting apparatus including a voltage detecting unit configured to detect an open voltage of a secondary battery, and a charging rate calculating unit configured to calculate a charging rate by applying a charged open voltage obtained by charging the secondary battery and detected by the voltage detecting unit to a first battery property indicative of a relationship between the charged open voltage and the first battery property, and for calculating the charging rate by applying a discharged open voltage obtained by discharging the secondary battery and detected by the voltage detecting unit to a second battery property indicative of a relationship between the discharged open voltage and the second battery property. | 11-15-2012 |
20120290237 | BATTERY CONDITION DETECTING APPARATUS AND BATTERY CONDITION DETECTING METHOD - There is provided a battery condition detecting apparatus including a unit for detecting a secondary battery temperature, a unit for calculating a capacity holding rate of the secondary battery, a unit for detecting a secondary battery voltage, a unit for calculating a waiting time between a time point when a current becomes a predetermined current value or smaller and a time point when a voltage variation per a unit time based on a battery property indicative of a relationship among a temperature of the secondary battery, a capacity holding rate, and the waiting time in response to the temperature detected by the unit and a capacity holding rate calculated by the unit, and a unit for estimating a condition of a residual quantity of the secondary battery based on the voltage detected by the unit after the waiting time calculated by the unit elapses. | 11-15-2012 |
20120296586 | METHOD FOR DIAGNOSING THE STATE OF HEALTH OF A BATTERY - A method for diagnosing the state of health of a battery includes, determining a first state-of-charge value from the battery voltage during partial discharge at constant current, determining a second state-of-charge value from the open circuit voltage of the battery, and calculating the state of health from the difference between the first and second state-of-charge values. | 11-22-2012 |
20120296587 | SMOOTH CURRENT CALCULATION APPARATUS, SMOOTH CURRENT CALCULATION METHOD AND BATTERY MONITORING MODULE - A smooth current calculation apparatus, which calculates a smooth current of a secondary battery, includes a digital low-pass filter ( | 11-22-2012 |
20120303301 | DEVICE FOR ESTIMATING INTERNAL RESISTANCE OF BATTERY AND BATTERY PACK INCLUDING THE SAME - A device for estimating an internal resistance of a battery and a battery pack including the same. The device stores voltage difference values between sampled voltage values and current difference values between sampled current values for a predetermined period of time, periodically selects a maximum value or a minimum value of stored voltage difference values and a maximum value or a minimum value of the stored current difference values, calculates a covariance value and a variance value of the selected voltage difference values and the selected current difference values, and estimates the internal resistance of the battery based on the calculated covariance value and variance value. | 11-29-2012 |
20120303302 | Systems and Methods for Monitoring Deterioration of a Rechargeable Battery - Systems and methods are provided for monitoring the deterioration of a rechargeable battery. A battery monitoring system may be used to store charging information, discharge information and storage information for a rechargeable battery to a data store. The charging information may include a number of charge cycles incurred by the rechargeable battery. The discharge information may include a number discharge cycles incurred by the rechargeable battery. The storage information may include information relating to periods when the rechargeable battery is not being actively charged or discharged. The battery monitoring system may be further used to determine an amount of deterioration of a battery performance characteristic based on the stored charging information, discharge information and storage information. | 11-29-2012 |
20120310561 | METHODS AND SYSTEMS FOR ESTIMATING BATTERY HEALTH - A method of estimating a state of health of a battery is disclosed. The method may include receiving information indicative of a history of electricity received by and discharged from the battery during a time period. The method may also include using the received information to estimate peaks in the electricity during the time period. Additionally, the method may include using an information processor to determine a parameter indicative of an estimated state of health of the battery based at least in part on an estimated magnitude of electricity at each of a plurality of the estimated peaks. | 12-06-2012 |
20120310562 | BATTERY MONITORING CIRCUIT, APPARATUS AND METHOD - Various aspects of the present disclosure are directed to monitoring battery cells. In accordance with various embodiments, a battery pack having a plurality of battery cells connected in series is monitored. Current is separately injected into individual ones of the plurality of battery cells, such as by operating a balancing circuit coupled across an individual cell, to inject current (e.g., positive or negative) into the cell. For each of the battery cells, an output is provided to indicate cell voltage of the battery cell responsive to the current injected therein. An output indicative of current through each of the battery cells is provided as well. From the respective outputs as corresponding to each individual cell, amplitude and phase characteristics of the current and voltage outputs for each of the cells are extracted to provide an indication of an impedance characteristic of the cell(s). | 12-06-2012 |
20120310563 | STATE OF CHARGE COMPUTATION SYSTEM - A first estimated state of charge is output based on an estimated open voltage of a secondary battery. A second estimated state of charge is output based on the result obtained by integrating the measured current of the secondary battery and the upper limit of the error of the measured current and the capacity of the secondary battery. A third estimated state of charge is output based on the result obtained by integrating the measured current and the lower limit of the error of the measured current and the battery capacity. A fourth estimated state of charge is output based on the result obtained by integrating the measured current and the battery capacity. The fourth estimated state of charge is output as a state of charge within the period of the predetermined period. | 12-06-2012 |
20120310564 | INFORMATION PROCESSING APPARATUS AND METHOD FOR PREDICTING REMAINING AMOUNT OF BATTERY CHARGE - An information processing apparatus driven by a battery, includes: a recording unit configured to record a value representing a magnitude of a load of the information processing apparatus; a determining unit configured to determine a lower threshold related to the load based on the value; a control unit configured to activate a program based on an amount of increase in the load caused by activation of the program, when the value is smaller than the lower threshold; and a calculating unit configured to calculate remaining time of the battery by using a function associated with a slope representing change in the value. | 12-06-2012 |
20120310565 | APPARATUS AND METHOD FOR DETERMINING BATTERY/CELL'S PERFORMANCE, AGE, AND HEALTH - A self-energized measuring system for determining primary and secondary battery/cell's performance, age, and health by measuring and recording battery/cell's voltage response to a specified load-changing perturbation spot-test event. The cell's voltage response is compared to a synchronously measured voltage signal of a comparator resistor. The relationship between the two voltage signals is analyzed on logarithmic time scale to determine performance parameters such as cell impedance and power and their variation in the time domain. The cell temperature is also measured for impedance and power normalization for 20 centigrade. Results are compared to a previously generated master data tabulation characteristic of a similar, new cell of perfect health condition. The time-domain performance parameters are related to the performance, age and health of the cell at any particular instant. The evaluation method can be easily adjusted to various battery chemistries, types. | 12-06-2012 |
20120310566 | CALCULATION METHOD, CALCULATION SYSTEM, AND CALCULATION APPARATUS - A calculation method causing a calculation apparatus configured to calculate a voltage of a battery to implement a computation capability includes: referring to a detection value database configured to store a charge amount of a battery and a voltage of the battery, the voltage being generated when the battery is charged, while associating the charge amount of the battery with the voltage of the battery, and a function information database configured to store a function representing a relationship between the voltage and a charge amount of each of a plurality of active materials included in the battery; and performing a regression calculation on the voltage of the battery that is stored in the detection value database, with an amount of the active materials of the function stored in the function information database being set as a variable. | 12-06-2012 |
20120310567 | DETERMINING THE INTERNAL RESISTANCE OF A BATTERY CELL OF A TRACTION BATTERY THAT IS CONNECTED TO A CONTROLLABLE MOTOR/GENERATOR - In a method and a device for determining the internal resistance of a battery cell of a battery, the battery is connected to a controllable motor/generator in such a way that a flow of energy can take place from the battery to the motor/generator or from the motor/generator to the battery, including the following steps: modulation of the magnetic field-forming portion of the motor/generator, determination of a change in voltage at the battery cell and of a change of the current flow through the battery cell during the modulation of the magnetic field-forming portion of the motor/generator, and calculation of the internal resistance of the battery cell as the quotient of the change in voltage and the change in current flow. | 12-06-2012 |
20120310568 | Monitoring Battery State of Charge - Systems and methods for monitoring a state of charge of a battery are disclosed. An updated state of charge of the battery may be determined based on a measured terminal voltage of the battery, a measured current of the battery, and a value of at least one battery parameter selected from a plurality of values based on a prior state of charge of the battery. | 12-06-2012 |
20120316810 | BATTERY LIMIT CALIBRATION BASED ON BATTERY LIFE AND PERFORMANCE OPTIMIZATION - Methods and systems are provided for calibrating one or more limits of a battery of a vehicle, the battery having state of charge limits and power limits. A history of environmental conditions for the vehicle is obtained and stored in a memory. One or more of the state of charge limits, one or more of the power limits, or both are adjusted based on the history of environmental conditions and usage severity using a processor. | 12-13-2012 |
20120316811 | APPARATUS AND METHOD FOR DETERMINING A REMAINING BATTERY LIFE OF A PORTABLE TERMINAL - An apparatus and method for determining a remaining battery life of a portable terminal are provided, in which a battery checker checks the remaining battery life, upon input of a power key is being input during a power-off state of the portable terminal, and a controller for checking and displaying of the remaining battery life during the power-off state of the portable terminal. | 12-13-2012 |
20120316812 | BATTERY STATE ESTIMATION DEVICE AND BATTERY STATE ESTIMATION METHOD - An object of the present invention is to provide a battery state estimation device and a battery state estimation method which identify parameter of a secondary battery with high accuracy. A current and a terminal voltage of secondary battery are detected, then by using the current measured value and terminal voltage measured value thus detected, the terminal voltage of secondary battery based on predetermined battery model is estimated, and the parameter of the secondary battery is identified such that a difference between terminal voltage measured value and voltage estimated value is converged to zero. In the identifying of parameter of secondary battery, the terminal voltage measured value and terminal voltage estimated value are subjected to filter treatment by low pass filter having a common high frequency breaking characteristic and the terminal voltage measured value and terminal voltage estimated value subjected to the filter treatment are used. | 12-13-2012 |
20120316813 | METHOD AND DEVICE FOR PROVIDING RELIABLE INFORMATION ABOUT THE LIFETIME OF A BATTERY - A battery powering a propulsion engine of a vehicle, is controlled by determining state data representative of the operation and wear of the battery, authenticating state data using an encryption method, and transmitting authenticated state data to an on-board computer of the vehicle for display. | 12-13-2012 |
20120316814 | SYSTEM AND METHOD FOR DETERMINING THE STATE OF HEALTH OF ELECTROCHEMICAL BATTERY CELLS - A system and method for determining the state of health of a battery. In particular, the present invention is related to a system and method for determining the state of health of an electrochemical battery cell by obtaining state of charge measurements for the battery cell, and using the state of charge measurements to calculate the state of health of the battery cell, wherein the state of charge measurements are based on the magnetic susceptibility of the battery cell. The system includes a sensing device for measuring the magnetic susceptibility of the battery cell, and a computing device for performing the steps of the disclosed method. | 12-13-2012 |
20120316815 | METHOD FOR EVALUATING DETERIORATION OF LITHIUM ION SECONDARY BATTERY, AND BATTERY PACK - Disclosed is a method for evaluating deterioration of a lithium ion secondary battery, in which an impedance spectrum of a lithium ion secondary battery is measured using alternating current of a predetermined frequency range. In a diagram including an arc-like portion obtained when the impedance spectrum is represented on a complex plane defined by a resistive component axis and a capacitive component axis, the coordinates of a peak of the arc-like portion are determined. The deterioration state of the lithium ion secondary battery is evaluated on the basis of the determined coordinates of the peak. | 12-13-2012 |
20120316816 | METHOD FOR DETERMINING BATTERY CAPACITY - An electrical device is powered by a battery. The device includes transition phase determining circuitry operatively connected to the battery to determine that the battery has entered a transition phase based on the occurrence of a change in direction of current flowing through the battery. Battery capacity determining circuitry is operatively connected to the transition phase determining circuitry and configured to determine, in response the transition phase determining circuitry determining that the battery is in the transition phase, a capacity of the battery based on a transition phase battery capacity model of capacity-vs.-voltage. The transition phase determining circuitry is further configured to determine an end of the transition phase based on the transition phase battery capacity model and a non-transition battery capacity model of capacity-vs.-voltage yielding the same capacity value for a given measured voltage of the battery. | 12-13-2012 |
20120323511 | BATTERY STATE NOTIFYING UNIT, BUS BAR MODULE, BATTERY PACK, AND BATTERY STATE MONITORING SYSTEM - [Problem to be Solved] | 12-20-2012 |
20120323512 | Battery Charge Determination - A method of determining a current state of charge of a battery having an internal resistance comprises estimating the current state of charge of the battery at a current time as a function of a previous state of charge of the battery at a previous time, a battery voltage of the battery during a time interval between the previous time and the current time, and a value of the internal resistance of the battery. The method improves the determining of the current state of charge of a battery. | 12-20-2012 |
20120330588 | Battery Monitoring System - A battery monitoring system including an on-site battery event monitor (BEM) that sends out battery-related data to a server over a wide area network (WAN). The BEM sends out data in a broadcast (or unicast manner) to predetermined server(s) without being queried or polled. This improves network security and data security and also eliminates the need for on-site network configuration and administration. | 12-27-2012 |
20120330589 | BINDER WITH GOOD RATE PROPERTY AND LONG CYCLEABILITY FOR LITHIUM SECONDARY BATTERY - Disclosed is a binder, which comprises polymer particles obtained by polymerization of: (a) 1˜80 parts by weight of a (meth)acrylic acid ester monomer; (b) 1˜20 parts by weight of an unsaturated carboxylic acid monomer; and (c) 0.001˜40 parts by weight of a vinyl monomer, based on 100 parts by weight of the binder polymer, and which allows electrode active material particles capable of lithium intercalation/deintercalation to be fixed and linked among themselves, and between the particles and a collector. An electrode comprising the binder, and a lithium secondary battery having the electrode are also disclosed. Further, a method for evaluating interrelation between wettability of a binder to an electrolyte and quality of a battery comprising the binder is disclosed. | 12-27-2012 |
20130013235 | SYSTEM, METHOD, AND PROGRAM PRODUCT FOR PREDICTING STATE OF BATTERY - An observation model for calculating a capacity maintenance ratio of a battery. The capacity maintenance ratio is calculated on the basis of basic data representing an internal state of the battery (such as a feature quantity extracted from a positive and negative AC impedance curve plot), and a transition model for mapping a temporally preceding internal state and deterioration environment (SOC, that is, the battery capacity that is actually available, temperature, etc.) onto a current internal state are prepared in advance. Using the above models, a transition path of an internal state having the maximum likelihood, that is, the minimum sum of squares of differences between predictive values calculated from the above models and an actual value, is determined using an optimization method that is preferably dynamic programming, and the capacity maintenance ratio is predicted. | 01-10-2013 |
20130013236 | SYSTEM, METHOD, AND PROGRAM PRODUCT FOR PREDICTING STATE OF BATTERY - An observation model for calculating a capacity maintenance ratio of a battery. The capacity maintenance ratio is calculated on the basis of basic data representing an internal state of the battery (such as a feature quantity extracted from a positive and negative AC impedance curve plot), and a transition model for mapping a temporally preceding internal state and deterioration environment (SOC, that is, the battery capacity that is actually available, temperature, etc.) onto a current internal state are prepared in advance. Using the above models, a transition path of an internal state having the maximum likelihood, that is, the minimum sum of squares of differences between predictive values calculated from the above models and an actual value, is determined using an optimization method that is preferably dynamic programming, and the capacity maintenance ratio is predicted. | 01-10-2013 |
20130013237 | STATE-OF-CHARGE ESTIMATION METHOD, STATE-OF-CHARGE ESTIMATION DEVICE, AND SECONDARY-BATTERY POWER SYSTEM - There is provided a state-of-charge estimation method, a state-of-charge estimation device, and a secondary-battery power system that may quickly and stably determine the convergence value of an adjustment parameter of a voltage characteristic formula that may approximate change over time of an open-circuit voltage of a secondary battery with high precision by appropriately setting the initial value of the adjustment parameter. At step S | 01-10-2013 |
20130013238 | METHOD OF DETECTING BATTERY CAPACITY OF SECONDARY BATTERY - A method detecting a battery capacity of a secondary battery, in which charging mode includes first mode including only ON state, and second mode including ON state and OFF state, the method includes: charging mode selection process of selecting the charging mode; internal resistance calculation process calculating internal resistance of secondary battery when ON state and OFF state are switched; remaining capacity calculation process calculating remaining capacity of secondary battery; remaining capacity variation amount calculation process calculating variation amount of remaining capacity from most recent full charge capacity calculation time; charged electricity amount calculation process of calculating amount of charged electricity in accordance with integrated value of current that flowed from point of time at which most recent full charge capacity is calculated; and full charge capacity detection process of detecting full charge capacity of secondary battery based on variation amount of remaining capacity and amount of charged electricity. | 01-10-2013 |
20130018610 | SECONDARY BATTERY MODULE, BATTERY INFORMATION MANAGEMENT DEVICE, BATTERY INFORMATION MANAGEMENT SYSTEM, SECONDARY BATTERY REUSE SYSTEM, SECONDARY BATTERY RECOVERY AND SALES SYSTEM, SECONDARY BATTERY REUSE METHOD, AND SECONDARY BATTERY RECOVERY AND SALES METHOD - A secondary battery module includes a battery information storage unit for storing electric characteristic information and usage history information of the secondary battery module. A battery information management device and a terminal device respectively include interfaces to be connected to the secondary battery module. The battery information management device is provided with a battery information database. The battery information management device is connected to the terminal device through a communications network. In this way, battery information stored in the battery information storage unit, which is acquired by the battery information management device and the terminal device, is accumulated in the battery information database. Moreover, the battery information management device grades the secondary battery module for reuse based on the battery information and a predetermined threshold. | 01-17-2013 |
20130030735 | RACK SERVER SYSTEM AND CONTROL METHOD THEREOF - A rack server system and a control method thereof are provided. The rack server system establishes a communication link for communicating with a battery backup unit. The battery backup unit is connected to a power input port of the rack server system, and includes a number of battery modules connected with each other in parallel. The rack server system controls the battery backup unit to perform validity test on a first battery module during a first period and to perform validity test on a second battery module during a second period, wherein the first period and the second period are not overlapped with each other. | 01-31-2013 |
20130030736 | BATTERY DEGRADATION DETERMINATION DEVICE, BATTERY DEGRADATION DETERMINATION METHOD AND BATTERY DEGRADATION DETERMINATION SYSTEM - A battery degradation determination device includes a fitting module configured to fit AC impedance measurement data into an equivalent circuit model including at least one circuit block in which a resistance and a constant phase element are connected in parallel, and to obtain circuit constants in the equivalent circuit model, a P-value saving module configured to save P values being index of the constant phase element obtained by fitting AC impedance measurement data of a reference battery to the equivalent circuit model, and a degradation determination module configured to perform degradation determination for a battery as a determination target based on circuit constants obtained by fitting AC impedance measurement data of the battery as a determination target to the equivalent circuit model with the use of the P values as fixed values, with reference to correlations between degrees of battery degradation and the circuit constants in the equivalent circuit model. | 01-31-2013 |
20130030737 | DEVICE FOR CALCULATING IMPEDANCES OF BATTERY CELL AND BATTERY IMPEDANCE MEASURING SYSTEM - There is provided a device for calculating impedances of a battery cell for respective frequency domains. The device includes: a Fourier transformation calculator configured to perform Fourier transformation on voltage waveform data and current waveform data, which are output from the battery cell, and calculate an impedance of the battery cell by dividing a Fourier transformation data of the voltage waveform data by a Fourier transformation data of the current waveform data; a circuit constant estimator configured to estimate circuit constants of a predetermined equivalent circuit model of the battery cell, based on the impedance calculated by the Fourier transformation calculator; and an impedance estimator configured to estimate impedances of the battery cell for respective frequency domains, based on the estimated circuit constants and the equivalent circuit mode. | 01-31-2013 |
20130030738 | Converging algorithm for real-time battery prediction - A method predicts the battery state in “real-time”, which is based on a nodal algorithmic model. Under this method, the battery is modeled as a network mesh of both linear and non-linear electrical branch elements. Those branch elements are inter-connected through a set of nodes. Each node can have several branches either originating or ending into it. The branch elements may represent loosely some particular function or region of the battery or they may serve a pure algorithmic function. The non-linear behavior of the elements may be described either algorithmically or through lookup tables. Kirchhoff's laws are applied on each node to describe the relationships between currents and voltages. The system may be connected with a battery so that it can receive measured values at the battery, and the system yields state-of-charge, state-of-health, and state-of- function signals. | 01-31-2013 |
20130030739 | DEVICE AND METHOD FOR DETERMINING DETERIORATION OF SECONDARY BATTERY - A secondary battery is implemented as an assembly of a plurality of battery modules. An ECU calculates a deterioration indicator quantitatively indicating a degree of deterioration of a battery module for each of the plurality of battery modules, and detects as a module to be replaced, a battery module of which deterioration indicator has reached a prescribed replacement level. The ECU further extracts a module to additionally be replaced, which should be replaced simultaneously with the module to be replaced above, from battery modules of which deterioration indicator has not reached the replacement level, among the plurality of battery modules. | 01-31-2013 |
20130041606 | DETECTING AN OPEN WIRE BETWEEN A BATTERY CELL AND AN EXTERNAL CIRCUIT - A device for detecting an open wire coupled to a battery includes a first pin and a second pin. The first pin is coupled to a positive terminal of a battery cell through a connection circuit. The second pin is coupled to a negative terminal of the battery cell through the connection circuit. A path of a current through the connection circuit changes in response to a wire between the connection circuit and the battery cell becoming open, and a change in a detecting voltage across the first pin and the second pin indicates a change in the path. | 02-14-2013 |
20130041607 | BATTERY MONITORING CIRCUIT - A battery monitoring circuit is described. The battery monitoring circuit includes a high counter that increments when a sense voltage measurement is above a threshold. The battery monitoring circuit also includes a low counter that increments when the sense voltage measurement is below the threshold. The battery monitoring circuit further includes state machine circuitry coupled to the high counter and to the low counter. The battery monitoring circuit additionally includes open circuit voltage monitoring circuitry coupled to the state machine circuitry. The battery monitoring circuit also includes resistance monitoring circuitry coupled to the state machine circuitry. | 02-14-2013 |
20130046495 | BATTERY MANAGEMENT SYSTEM AND METHOD FOR SYNCHRONIZING VOLTAGE AND CURRENT OF BATTERY - A controller of a power storage system includes a voltage measuring device configured to be electrically coupled to at least one cell and to generate first voltage data, the first voltage data comprising a first voltage value and a first voltage measurement time of a voltage of the at least one cell, and a current measuring device configured to be electrically coupled to the at least one cell and to generate first current data, the first current data comprising a first current value and a first current measurement time of a current through the at least one cell, the first voltage measurement time corresponding to the first current measurement time in a first measuring period, a battery management system configured to generate a clock signal transmitted to the voltage measuring device and the current measuring device to synchronize the first voltage data and the first current data in a first transmission period of the first measuring period. | 02-21-2013 |
20130060497 | BATTERY STATE MONITORING DEVICE - A battery state monitoring device includes a battery pack including at least one battery cell, and a measuring circuit that measures a state of the battery cell, the measuring circuit including temperature measuring means for measuring a temperature of the battery cell, current measuring means for measuring a current flowing through the battery cell, and voltage measuring means for measuring a voltage of the battery cell, and including a calculation circuit in parallel, wherein the battery state monitoring device calculates a predetermined voltage corresponding to a predetermined state of charge of the battery cell, based on the temperature and the current of the battery cell, using a predetermined operational expression including a temperature quadratic exponential function and a temperature linear function, and compares the voltage of the battery cell with the predetermined voltage calculated using the operational expression to determine the predetermined state of charge of the battery cell. | 03-07-2013 |
20130066572 | ASSEMBLED BATTERY - The present invention relates to a battery pack constituted by connecting a plurality of unit batteries, in which the route of the signal line is simplified and the manufacturing cost is reduced. The battery pack of the present invention includes means for measuring voltage or the like of a unit battery equipped for every unit battery board and for saving aforesaid measured value, means for transmitting aforesaid saved measured-value to aforesaid battery management unit as a digital signal, and the like, wherein the plurality of unit battery boards and aforesaid battery management unit are connected by a single loop-shaped or double loop-shaped communication channel, and it is constituted so as to carry out transmission and reception of aforesaid measured-value or the like between aforesaid respective unit battery boards and aforesaid battery management unit through aforesaid loop-shaped communication channel. | 03-14-2013 |
20130066573 | SYSTEMS AND METHODS FOR DETERMINING BATTERY STATE-OF-HEALTH - A system and method use an open-circuit voltage (OCV) method of calculating a state-of-health (SOH) of a chemical battery. The OCV system and method includes charging the battery to a maximum charge potential, determining an open-circuit voltage (OCV) of the battery after waiting a predetermined period of time after completion of the charging, and determining the SOH of the battery based on the determined OCV of the battery. Another system and method use a time-to-charge (TTC) method of calculating a state-of-health (SOH) of a chemical battery. The TTC system and method includes monitoring and storing a charge time of the battery in a memory and scaling the stored charge time to form an SOH indication. | 03-14-2013 |
20130073233 | Detection of Low Voltage Electrolysis in a Battery Pack - An apparatus and method providing for detecting and responding to low voltage electrolysis within an electric vehicle battery detecting and responding to low voltage electrolysis within an electric vehicle battery enclosure to limit a possible hazard condition of battery enclosure. The present invention includes embodiments directed towards detection algorithms and apparatus for promoting the use of sensors (e.g., hydrogen, voltage, current, and immersion sensors) for the purpose of detecting low voltage electrolysis. Additionally, the present invention includes response processes and structures to address low voltage electrolysis. | 03-21-2013 |
20130073234 | Response to Low Voltage Electrolysis in a Battery Pack - An apparatus and method providing for detecting and responding to low voltage electrolysis within an electric vehicle battery detecting and responding to low voltage electrolysis within an electric vehicle battery enclosure to limit a possible hazard condition of battery enclosure. A microprocessor-implemented response system for low voltage electrolysis in a battery pack, includes an evaluator to monitor, using the microprocessor, a low voltage electrolysis flag indicative of a possible low voltage electrolysis of fluid within an enclosure that generates a flammable gas including a plurality of electrically-coupled battery modules storing energy for the battery pack; and a remediation system, coupled to the enclosure and responsive to the possible low voltage electrolysis when the evaluator detects a likelihood of the possible low voltage electrolysis, to decrease risks associated with the possible low voltage electrolysis when the remediation system is active. | 03-21-2013 |
20130073235 | BATTERY MONITORING DEVICES - Described herein is a battery monitoring device that can easily be mounted on a cable or electrical connection associated with a battery pack for monitoring voltage and/or current of the battery pack. A pair of clamp elements ( | 03-21-2013 |
20130073236 | SYSTEMS AND METHODS FOR DETERMINING A REMAINING BATTERY CAPACITY OF A BATTERY DEVICE - A system for determining a remaining battery capacity includes a detection circuitry and a controller. The detection circuitry is coupled to a battery device at a detection node for detecting a closed circuit voltage of the battery device. The controller is coupled to the detection circuitry, derives an amount of current drawn out from the battery device based on the closed circuit voltage, calculates an open circuit voltage of the battery device based on the current, and determines the remaining battery capacity of the battery device based on the open circuit voltage. | 03-21-2013 |
20130080094 | Device for Depth of Energy Prediction of a Battery and a Method for the Same - A device for predicting remaining capacity of a battery and a method for the same are disclosed. The device is embedded in a battery pack or externally coupled thereto. The device includes a program for proceeding an algorithm of cell capacity calculation, a database stored in a non-volatile memory having a table of open-circuit voltage, a table of current gain and a capacity conversion equation. The program generates a discharging curve according to the cell temperature and load accessed and corrects the database according to the battery voltage and the discharging curve and the coulomb counter. | 03-28-2013 |
20130080095 | MEASURING AND MONITORING A POWER SOURCE - Battery testing sensors, and systems and methods for testing batteries, are disclosed. Each battery sensor has a microcontroller programmed to analyze the frequencies of noise or other undesirable signals (“background noise”) present at a battery to be tested, and to determine the duty cycle of a desired pulse width modulation (PWM) signal to be applied to the battery in view of the background noise. Duty cycles of desired PWM signals are selected such that, when applied to the battery, they will at least approximate an AC signal having a frequency that has been determined to provide optimal test results in view of the background noise. The microcontroller analyzes the battery's response from application of the PWM signal thereto. Consequently, measurement errors from background noise present at the battery are minimized. Based on the response, attributes of the battery, such as internal admittance, voltage, current, and temperature, are determined. | 03-28-2013 |
20130080096 | ARITHMETIC PROCESSING APPARATUS FOR CALCULATING INTERNAL RESISTANCE/OPEN-CIRCUIT VOLTAGE OF SECONDARY BATTERY - In an arithmetic processing apparatus with a charge-discharge switching device for switching between a charge and a discharge of a secondary battery, a processor is provided for calculating an internal resistance or an open-circuit voltage of the secondary battery based on data including a voltage detected by a voltage sensor and a current detected by a current sensor. The processor is configured to derive an IV characteristic by using at least one of charging-period voltage and current data and discharging-period voltage and current data detected after a predetermined time has expired from a charge/discharge switching point, without using the voltage and current data of the secondary battery detected during a time duration from the charge/discharge switching point to the predetermined time, and configured to calculate the internal resistance or the open-circuit voltage from the derived IV characteristic. | 03-28-2013 |
20130085695 | BATTERY STATE MEASURING METHOD AND APPARATUS, AND ELECTRONIC APPARATUS - A battery state measuring method computes a battery voltage at a time when charging or discharge of a battery stops, corresponding to a charging rate of a unit time before, based on a first battery characteristic. The method further computes a variation per unit time of the charging rate, corresponding to a voltage difference between the detected and computed battery voltages, based on a second battery characteristic, and computes a charging rate of the unit time after, using the charging rate of the unit time before and the computed variation. | 04-04-2013 |
20130085696 | METHOD AND SYSTEM FOR OBTAINING DEGRADATION OF BATTERY USING DEGRADATION MODEL AND PARAMETERS RELATED TO THE DEGRADATION - The present disclosure provides a method for obtaining degradation of a battery comprising the steps of collecting data of the battery and data related to the degradation of the battery; processing the collected data to obtain parameters related to the degradation of the battery; creating and updating a degradation model for the battery with the obtained parameters; and computing the degradation of the battery by using the degradation model and the parameters. | 04-04-2013 |
20130090870 | BATTERY TESTERS WITH SECONDARY FUNCTIONALITY - An electronic vehicle tester includes a battery tester configured to measure a parameter of a battery of a vehicle. A tire tester is configured to receive a parameter of a tire of the vehicle. A wireless receiver can be configured to receive pressure information from a transmitter associated with a tire of a vehicle. | 04-11-2013 |
20130090871 | CAPACITY ESTIMATING APPARATUS FOR SECONDARY BATTERY - A capacity estimating apparatus for a secondary battery includes a current-detecting section configured to detect a value of current flowing in the secondary battery; a voltage-detecting section configured to detect a voltage value of the secondary battery; a first estimating section configured to calculate a first estimate value of a remaining capacity of the secondary battery on the basis of an accumulated value of the current values detected by the current-detecting section; and a second estimating section configured to calculate a second estimate value of the remaining capacity of the secondary battery on the basis of the voltage value detected by the voltage-detecting section. The first estimating section is configured to calculate a difference between the first estimate value and the second estimate value, and to correct the first estimate value by correcting the accumulated value so as to gradually reduce the difference. | 04-11-2013 |
20130090872 | BATTERY MANAGEMENT SYSTEM, BATTERY MANAGEMENT APPARATUS, METHOD OF REUSING BATTERY, AND INFORMATION COMMUNICATION TERMINAL APPARATUS - Provided is a method of reusing a battery, a battery management system, a battery management apparatus, and an information communication terminal apparatus, wherein, upon retrieving batteries mounted on vehicles, methods of handling the retrieved batteries can be determined at low cost. Measurement data of each of a plurality of stacks constituting a battery pack are transmitted to a data station. The data station stores the received measurement data in a history information storage unit as history information. When history information of a battery pack mounted on a scrapped vehicle is not stored in the history information storage unit of the data station, that battery pack is subjected to recycle processing. When history information thereof is stored in the history information storage unit of the data station, a method of reusing the battery pack is determined on the basis of the history information. | 04-11-2013 |
20130096858 | SYSTEM, METHOD, AND PROGRAM FOR PREDICTING STATE OF BATTERY - A method and system for predicting degradation of a battery. Modeling of a battery is made to be separated into an aging section and a current-carrying section. The modeling is established such that the amount of degradation of a capacity retention ratio is determined by the linear sum of stay at each temperature and each SOC. The separation into degradation components at each temperature and each SOC enables predicting degradation under various degradation environments. A model for a battery separated into an aging section and a current-carrying section and a calculation model of a root law are combined into an objective function, and a table of discharge coefficients a | 04-18-2013 |
20130103332 | VOLTAGE CALIBRATION METHOD - In a rechargeable battery set, an average voltage is computed from average voltage drop produced by the sum of internal resistances of each battery cell. A calculated internal resistance of each battery cell is then computed from a measured voltage of each battery cell and the average voltage. Finally, the measured voltage of each battery cell is calibrated according to the calculated internal resistance and a calibrated voltage of each battery cell may be computed. In such way, the calibrated voltage of each battery cell is much closer to a real voltage of the battery cell, which provides a battery control unit more precise information when charging/discharging the battery cells. | 04-25-2013 |
20130103333 | BATTERY SYSTEM - A battery system includes secondary batteries (Ca to Ch), temperature sensors (Ta to Th), current sensors (Ia and Ib), voltage sensors (Va to Vh), and a control unit | 04-25-2013 |
20130110428 | Method And System For Estimating A Capacity Of A Battery | 05-02-2013 |
20130110429 | BATTERY INTERNAL STATE ESTIMATING APPARATUS AND BATTERY INTERNAL STATE ESTIMATING METHOD | 05-02-2013 |
20130110430 | STORAGE SYSTEM AND STORAGE CONTROLLER FOR STORAGE SYSTEM | 05-02-2013 |
20130110431 | SECONDARY BATTERY CHARGING METHOD AND CHARGING APPARATUS | 05-02-2013 |
20130116954 | BATTERY STATE ESTIMATING DEVICE AND BATTERY STATE ESTIMATING METHOD - A battery state estimating device being one aspect of the present invention detects a current and a terminal voltage of a secondary battery, estimates a terminal voltage of the secondary battery which is based on a predetermined battery model by using measured values I(k) and V(k) respectively of the detected current and the detected terminal voltage, and sequentially identifies a parameter φ̂(k) of the battery model in such a way that the difference between a value based on the measured value of the terminal voltage and an estimate value of the terminal voltage converges to zero. Then, when a certain parameter φ | 05-09-2013 |
20130124121 | BATTERY PACK MANAGEMENT - A battery pack management system provides information such as remaining capacity and/or run time to empty for a battery. A time taken for a battery voltage to drop a threshold amount is measured and used to determine a remaining capacity of the battery. The time may be associated with a temperature and current of the battery. The remaining capacity of a battery is calculated by monitoring a discharge of the battery. For example, current drawn from the battery is monitored over a period of time and an initial amount by which the battery has been discharged is calculated. Compensation of this initial amount is carried out in order to take into account factors such as temperature, self-discharge rate and age of the battery. | 05-16-2013 |
20130132010 | METHOD AND APPARATUS FOR BATTERY CHARGE LEVEL ESTIMATION - There is provided an apparatus for battery life estimation comprising an energy harvester; an energy storage apparatus, connected to the energy harvester, the energy storage apparatus representative of a unit of measure; a battery for receiving energy from the storage apparatus; and a processor for monitoring the energy provided by the storage apparatus, monitoring energy provided to the battery by other charging apparatus and monitoring the energy being delivered by the battery; wherein the processor calculates the remaining life of the battery based on the number of energy storage apparatus units that are provided to and delivered from the battery. | 05-23-2013 |
20130132011 | DEVICE AND METHOD FOR DIAGNOSING RECHARGEABLE BATTERY, AND VEHICLE - A diagnostic device diagnoses a lithium ion battery including a plurality of battery blocks. If a condition is established for starting a diagnosis, the diagnostic device starts discharging the battery, and after each battery block has a voltage decreased to a measurement starting voltage until the block has the voltage decreased to a measurement ending voltage the block discharges an amount of power, which the diagnostic device calculates for the battery block. If all blocks each discharge power in an amount larger than a brand-new product threshold value the diagnostic device determines that the battery is in a brand new condition. If all blocks each discharge power in an amount larger than a uselessness threshold value the diagnostic device determines that the battery is useful. If at least one block discharges power in an amount smaller than the uselessness threshold value the diagnostic device determines that the battery is useless. | 05-23-2013 |
20130138369 | METHOD AND APPARATUS FOR ONLINE DETERMINATION OF BATTERY STATE OF CHARGE AND STATE OF HEALTH - An online method and apparatus for determining state of charge (SoC) and state of health (SoH) of batteries on platforms that present dynamic charge and discharge environments is disclosed. A rested open circuit voltage (OCV) may be estimated online using a battery dynamic model along with measured terminal voltage, current and temperature. The SoC and SoH can then be determined from this estimated OCV. The apparatus and methods may estimate SoC and SoH of a battery in a real-time fashion without the need to a) disconnect the battery system from service; b) wait for a predefined rest time; or c) depolarize the battery. | 05-30-2013 |
20130138370 | BATTERY STATE-OF-CHARGE ESTIMATION METHOD AND BATTERY MANAGEMENT SYSTEM - Provided are a battery state-of-charge (SOC) estimation method and a battery management system which are capable of estimating an SOC using an inexpensive processor and a small-capacity memory. The SOC estimation method includes an SOC table creation step, an SOC calculation step, an SOC comparison step, and a processing step. The battery management system includes a battery, a sensing resistor, a control switch unit, and a processor. | 05-30-2013 |
20130144547 | APPARATUS FOR CONTROLLING BATTERY PACK, AND ENERGY STORAGE SYSTEM INCLUDING THE APPARATUS - An apparatus for controlling a battery pack and an energy storage system including the apparatus are disclosed. In one embodiment, the battery pack includes at least one battery tray each including one or more battery cells. The apparatus may include an open circuit voltage (OCV) calculator and a state of charge (SOC) estimator. The OCV calculator may receive OCV measurement values of the battery cells of each battery tray when the power of the battery pack is turned on, and calculate a final OCV of the battery cells based at least in part on the OCV measurement values. The SOC estimator may extract an SOC value corresponding to the final OCV from an SOC table and estimate the extracted SOC value as an initial SOC. | 06-06-2013 |
20130151180 | BATTERY MAGNETIC STATE OF CHARGE SENSOR CONTROL ALGORITHM - A system and method for estimating the state-of-charge (SOC) of a battery cell in a vehicle using a magnetic sensor that measures changes in magnetism of the battery cell. The method provides an offset correction to a current output signal from the magnetic sensor that calibrates the current output signal to a known magnetic field strength, provides a temperature correction to the current output signal that corrects the current output signal based on a temperature of the magnetic sensor, and provides a current correction to the current output signal that removes portions of the magnetic field caused by other battery cells, where the corrected current output signal is converted to the battery cell SOC. | 06-13-2013 |
20130151181 | DETERMINING A BATTERY CHEMISTRY FOR A BATTERY IN A PERIPHERAL DEVICE - Some embodiments provide a system that determines a battery chemistry for a battery in a peripheral device. During operation, the system determines a first voltage of the battery at a first time and a second voltage of the battery at a second time. The first voltage and the second voltage are then compared to one or more predetermined battery usage profiles to determine the battery chemistry. | 06-13-2013 |
20130151182 | PROCESS FOR SUPPLYING A MEDICAL DEVICE - A process for supplying a medical device ( | 06-13-2013 |
20130151183 | TECHNIQUE OF DETERMINING DEGRADATION OF HIGH-VOLTAGE BATTERY FOR VEHICLE - Disclosed herein is a technique for determining degradation of a high-voltage battery of a vehicle. More specifically, variations in charge capacity with respect to a predetermined variation in voltage of a high-voltage battery that is currently being slowly charged are obtained depending on degradation degrees of the high-voltage battery. A vehicle equipped with a high-voltage battery having a specification identical to those of the high-voltage battery is used to acquire a charge capacity and a voltage of the high-voltage battery that is currently being slowly charged. A variation in charge capacity with respect to the predetermined variation in voltage is calculated from the charge capacity and the voltage. The variation in charge capacity with respect to the predetermined variation in voltage is compared with the variations in charge capacity with respect to the predetermined variation in voltage depending on the degradation degrees, thus determining a relevant degradation degree. | 06-13-2013 |
20130158912 | Apparatus for Measuring the State of Health of a Cell Pack - Disclosed is an apparatus for measuring and classifying a cell pack based on statistical parameters of charge of and discharge from the cell pack. The apparatus includes a control unit, a register, a database, a display, a charger and a load. The register, the database, the display, the charger and the load are connected to the control unit. | 06-20-2013 |
20130158913 | SYSTEM AND METHOD FOR DETERMINING CHARGING AND DISCHARGING POWER LEVELS FOR A BATTERY PACK - A system and a method for determining charging and discharging power levels for a battery pack are provided. The battery pack has an enclosure holding a battery module therein. The system includes a computer that determines a temperature correlation value based on first and second temperature values associated with the battery pack. The computer determines a third temperature value indicative of a temperature level of a first battery cell disposed adjacent to the end of a housing in the battery pack based on the first temperature value and the temperature correlation value. The computer determines a desired charging power level for the battery pack based on the third temperature value. | 06-20-2013 |
20130158914 | Apparatus for Measuring the State of Charge of a Battery Pack via Measuring an Open Circuit Voltage - Disclosed is an apparatus for measuring the state of charge of a battery pack via measuring an open circuit voltage. The apparatus includes a voltage measurement unit electrically connected to the battery pack, a current sensor electrically connected to the battery pack, a current measurement unit electrically connected to the current sensor, and a processor electrically connected to the voltage measurement unit and the current measurement unit. The processor measures the voltage and current of the battery pack via the voltage measurement unit and the current measurement unit. | 06-20-2013 |
20130158915 | Method, Arrangement and Computer Program Product for Determining an End-of-Life State of a Battery - The present disclosure relates to a method, an arrangement and a computer program product for determining an end-of-life state of a battery. It is an object of the present invention to more reliably determine an end-of-life (EOL) state of a battery even when the load of the system to be powered by the battery varies. | 06-20-2013 |
20130158916 | BATTERY FUEL GAUGE - A system for estimating battery state of charge (SoC) includes evaluating a battery model to produce an estimated battery voltage using a previously produced SoC. Current and voltage measurements are combined with the estimated battery voltage to produce a present battery SoC. The battery model may be updated by taking battery measurements when certain conditions occur. | 06-20-2013 |
20130158917 | BATTERY ABNORMALITY PREDICTION SYSTEM - A battery abnormality prediction system includes a normal range determination unit which acquires parameter values representing the states of a plurality of unit cells ( | 06-20-2013 |
20130166233 | DEVICE FOR ESTIMATING A LIFETIME OF A SECONDARY BATTERY AND METHOD THEREOF - Embodiments of the present invention provide an accelerated lifetime estimation device for predicting the lifetime of a secondary battery, and a method thereof. The accelerated lifetime estimation device can accurately estimate a normal lifetime of the secondary battery while reducing an evaluation time period of the secondary battery. | 06-27-2013 |
20130166234 | METHOD FOR ESTIMATING BATTERY DEGRADATION - A method for estimating battery degradation is provided. In this method, a remaining capacity is obtained by looking up a device characteristic table according to a steady open circuit voltage of a battery. Besides, a constant current is provided to charge the battery, and when a terminal voltage of the battery reaches to a charging preset voltage, a constant voltage is provided to charge the battery. The transition point information at the transition from a constant current mode to a constant voltage mode, which includes a transition point estimated open circuit voltage, a transition point voltage, a transition point current and a transition point battery temperature, is analyzed based on voltage, current, temperature and capacity information measured during the charging process. A battery degradation index is calculated from the transition point information. | 06-27-2013 |
20130166235 | MANAGEMENT SYSTEM AND ESTIMATING METHOD FOR BATTERY PARAMETER - The present invention relates to a battery parameter management system and a battery parameter estimation method which are capable of simply estimating parameters of elements forming a battery equivalent model having a simple structure. The battery parameter system includes an amperemeter, a voltmeter, a control switch unit, and a processor, and the battery parameter estimation method includes supplying a pulse current, estimating resistance of an internal resistor, estimating capacitance of an internal capacitor, and estimating parameters of dynamic elements. | 06-27-2013 |
20130179103 | BATTERY ANALYSIS DEVICE AND METHOD THEREOF - A battery analysis device for a battery module having at least one battery cell includes a power source supply unit, a signal capturing unit, a signal adjusting unit, a frequency domain analyzing unit, a time domain analyzing unit, and a processing unit. The power source supply unit provides a variable-frequency voltage signal to a battery cell. The signal capturing unit captures a current signal generated by a battery cell in response to the variable-frequency voltage signal. The signal adjusting unit adjusts the variable-frequency voltage signal and the current signal. The frequency domain analyzing unit and time domain analyzing unit analyze both the adjusted variable-frequency voltage signal and the adjusted current signal in frequency domain and time domain respectively for obtaining a frequency domain parameter and a time domain parameter. The processing unit obtains electrochemistry characteristics of the battery cell according to the frequency and the time domain parameters. | 07-11-2013 |
20130185007 | METHOD AND CONFIGURATION FOR ESTIMATING THE EFFICIENCY OF AT LEAST ONE BATTERY UNIT OF A RECHARGEABLE BATTERY - The state of charge of at least one battery unit of a rechargeable battery is initially estimated, and at least one variable of the battery unit which describes the state of health of this battery unit at a selected operating point with the aid of a model is estimated. The variable describing the state of health is an instantaneous charge capacity of the battery unit, which is estimated from the load current of the battery unit at the operating point and the reciprocal value of the derivation over time of the previously estimated state of charge of the battery unit. | 07-18-2013 |
20130185008 | PARAMETER ESTIMATION DEVICE USING FILTER - A parameter estimation device using a filter has a preprocessing computing means | 07-18-2013 |
20130204560 | Gas Gauge Device - The present invention discloses a gas gauge device for measuring a state of charge of a battery. The gas gauge device comprises a first programmable gain amplifier (PGA), for amplifying a battery current of the battery with a first adjustable gain, to generate an amplified battery current; a first analog to digital (ADC) converter, for converting the amplified battery current into a digital amplified battery current with a first adjustable sampling rate; and a micro controller, for adjusting the first adjustable gain and the first adjustable sampling rate to measure the battery current. | 08-08-2013 |
20130204561 | Device And Method For Determining A Range Of A Battery Characteristic Curve - A device for determining at least one range of a battery characteristic curve for a battery in a vehicle, having a measuring device for measuring battery parameters, and an analysis unit including a device for determining the current state of charge (SOC) of the battery from the measured battery parameters, a device for determining a shift value (VW) from the difference of a measured battery parameter and a standard value derived from a standard battery characteristic curve considering the determined state of charge (SOC), and a device for determining at least one range of a new battery characteristic curve by adding the shift value (VW) to the standard battery characteristic curve. | 08-08-2013 |
20130218496 | BATTERY STATE ESTIMATOR WITH OVERPOTENTIAL-BASED VARIABLE RESISTORS - A battery model and equivalent circuit that includes an ohmic resistance, a first RC-pair that models a battery cell charge transfer reaction and double layer processes and a second RC-pair that models battery cell diffusion. Each of the ohmic resistance, the charge transfer reaction resistance and the diffusion resistance in the model are variable resistances, where each resistance changes in response to a change in voltage potential across the resistance. | 08-22-2013 |
20130226486 | Power Management in an Activity Monitoring Device - Batteries for an athletic activity monitoring device may be managed in both charged and discharged state to provide more accurate state information and/or expected charge times. Additionally or alternatively, various power management processes may be executed to maximize an amount of battery charge remaining. | 08-29-2013 |
20130231880 | BATTERY DETECTION AND USER EXPERIENCE - Methods, systems, and computer-readable storage media are provided for enabling a reliable indication of the amount of time a battery will provide sufficient charge to power a computing device. One or more profiles of user activity on a computing device are created. A drain rate for each profile of user activity is determined and stored. An analysis of the user activities being engaged in on the computing device is conducted, and a profile of user activity is determined to describe the user activities. An amount of remaining charge stored in the battery is determined, and the period of time that the battery will provide sufficient charge to the computing device is determined based on the amount of remaining charge and on the drain rate at which charge is drained from the battery for the determined profile of user activity. | 09-05-2013 |
20130231881 | System and Method for Monitoring Power Source Longevity of an Implantable Medical Device - A power source longevity monitor is configured for an implantable medical device. An energy counter counts the amount of energy used by the implantable medical device. A voltage monitor monitors the voltage of the power source. A calculator predicts the power source longevity using the energy longevity estimate and the voltage longevity estimate. | 09-05-2013 |
20130245973 | APPARATUS, COMPUTER PROGRAM, METHOD, AND SYSTEM FOR ACQUIRING AND ANALYZING BATTERY METRICS - An apparatus, computer program, method, and system for acquiring and analyzing battery metrics. The apparatus, computer program, method, and system are directed to acquiring operating metrics for a battery, for wirelessly communicating the acquired metrics to a computing device executing the computer program, for determining pertinent operation information associated with battery life from the acquired metrics, and for presenting a user with the metrics, the status information, or the operating parameters of the battery. | 09-19-2013 |
20130245974 | METHOD AND APPARATUS FOR COLLECTING VOLTAGE DIFFERENTIAL PARAMETERS OF INDIVIDUAL BATTERY CELLS IN BATTERY PACK - The invention belongs to the technical field of battery management, and in particular relates to a method and apparatus for collecting voltage differential parameters of individual battery cells in a battery pack. In the invention, a reference voltage is provided, the reference voltage is compared with an actual voltage of each individual battery cell at a same moment to obtain a relative voltage difference value between the actual voltage of each individual battery cell and the common reference voltage at the current moment; and an actual voltage difference value between the actual voltage of each individual battery cell and an actual average voltage value of the actual voltages of all individual battery cells is determined according to the relative voltage difference value, and each actual voltage difference value is used for representing the voltage differential parameter of the individual battery cell relative to a battery system. | 09-19-2013 |
20130253862 | IMPEDANCE ANALYZING DEVICE - An impedance analyzing device, adapted to a testee comprising an electrode or at least one battery cell, includes a signal capturing unit, a signal adjusting unit, a signal analyzing unit, a processing unit, and a power source supply unit providing a variable-frequency voltage signal to the testee. The signal adjusting unit receiving and adjusts a variable-frequency voltage signal and the current signal to generate an adjusted variable-frequency voltage signal and an adjusted current signal. The signal capturing unit captures a current signal generated by the testee in response to the variable-frequency voltage signal. The signal analyzing unit receives and analyzes the adjusted variable-frequency voltage signal and the adjusted current signal in frequency domain to obtain a frequency domain parameter and/or a time domain parameter. The processing unit receives the frequency domain parameter and/or the time domain parameter to obtain an impedance variation characteristic of the testee. | 09-26-2013 |
20130262002 | MONITORING AND MATCHING BATTERIES AND BATTERY POWERED DEVICES - Provided herein are systems, methods and computer readable media for matching one or more batteries that were charged in a charging station with a remote device that is depleting its availble battery power. In providing such matching functionality, the system can be configured to, for example, monitor the amount of power the remote device, such as a rechargeable battery-powered device used in a hospital, requires over one or more periods of time, monitor the health of a number of batteries, match one or more of the batteries to the rechargeable battery-powered device, and then convey to a user which rechargeable battery-powered device should have its depleted battery replaced with a remotely-charged battery. | 10-03-2013 |
20130268223 | SYSTEMS AND METHODS FOR MONITORING DETERIORATION OF A RECHARGEABLE BATTERY - Systems and methods are provided for monitoring the deterioration of a rechargeable battery. A battery monitoring system may be used to store charging information, discharge information and storage information for a rechargeable battery to a data store. The charging information may include a number of charge cycles incurred by the rechargeable battery. The discharge information may include a number discharge cycles incurred by the rechargeable battery. The storage information may include information relating to periods when the rechargeable battery is not being actively charged or discharged. The battery monitoring system may be further used to determine an amount of deterioration of a battery performance characteristic based on the stored charging information, discharge information and storage information. | 10-10-2013 |
20130275067 | STATE OF CHARGE ERROR CORRECTION SYSTEMS AND METHODS - Systems and methods for determining a state of charge of a battery on a mobile device are disclosed. An exemplary method may include obtaining, when the battery is applying a level of current below a threshold level, an initial state of charge of the battery based upon a measured open circuit voltage value that is applied by the battery. Charge drawn from, and provided to, the battery is monitored from a time after the measured open circuit voltage value is obtained and a state of charge value is calculated when the battery is loaded after the initial open circuit voltage value is obtained based upon the monitored charge. An estimated open circuit voltage for the battery is calculated based upon simultaneous measurements of battery voltage and battery current, and a corrected state of charge value is generated using the estimated open circuit voltage. | 10-17-2013 |
20130282316 | DEGRADATION SPEED ESTIMATION METHOD, AND DEGRADATION SPEED ESTIMATION DEVICE, OF LITHIUM-ION BATTERY - A deterioration rate estimation method for a lithium-ion battery of estimating the deterioration rate of the lithium-ion battery including a negative electrode having stage structures switching depending on an electric storage amount includes a first step of acquiring first information about the stage structure, a second step of acquiring second information about the battery temperature of the lithium-ion battery, and a third step of estimating the deterioration rate from the first information and the second information. | 10-24-2013 |
20130289908 | BATTERY MONITORING APPARATUS AND WIRELESS FIELD DEVICE - A battery monitoring apparatus is built in a device having a primary battery. The battery monitoring apparatus includes a voltage measuring module configured to obtain an open circuit voltage of the primary battery and an output voltage of the primary battery at the time when a load current flows, a current measuring module configured to obtain the load current, a first resistance value calculating module configured to obtain a first internal resistance of the primary battery based on the open circuit voltage, the load current and the output voltage, a second resistance value calculating module configured to obtain a second internal resistance of the primary battery at which the device can operate normally based on the open circuit voltage, the load current and the minimum drive voltage, and an alarm outputting module configured to output a battery life alarm when the first internal resistance is larger than the second internal resistance. | 10-31-2013 |
20130297243 | BATTERY SOC ESTIMATION DEVICE - A battery SoC estimation device includes a discharge-and charge current detection means | 11-07-2013 |
20130297244 | SECONDARY BATTERY LIFETIME PREDICTION APPARATUS, BATTERY SYSTEM AND SECONDARY BATTERY LIFETIME PREDICTION METHOD - An object of the present invention is to provide a secondary battery lifetime prediction apparatus, a battery system and a secondary battery lifetime prediction method that allow a more accurate lifetime prediction for a secondary battery. The battery system ( | 11-07-2013 |
20130311115 | Battery System and Method with Parameter Estimator - An electrochemical battery system in one embodiment includes at least one electrochemical cell, a first sensor configured to generate a current signal indicative of an amplitude of a current passing into or out of the at least one electrochemical cell, a second sensor configured to generate a voltage signal indicative of a voltage across the at least one electrochemical cell, a memory in which command instructions are stored, and a processor configured to execute the command instructions to obtain the current signal and the voltage signal, and to generate kinetic parameters for an equivalent circuit model of the at least one electrochemical cell by obtaining a derivative of an open cell voltage (U | 11-21-2013 |
20130311116 | Battery System and Method with SOC/SOH Observer - An electrochemical battery system in one embodiment includes at least one electrochemical cell, a first sensor configured to generate a current signal indicative of an amplitude of a current passing into or out of the at least one electrochemical cell, a second sensor configured to generate a voltage signal indicative of a voltage across the at least one electrochemical cell, a memory in which command instructions are stored, and a processor configured to execute the command instructions to obtain the current signal and the voltage signal, and to generate an estimated SOC and kinetic parameters for an equivalent circuit model of the at least one electrochemical cell by obtaining a derivative of an open cell voltage, obtaining an estimated nominal capacity of the at least one electrochemical cell, estimating the kinetic parameters using a modified least-square algorithm with forgetting factor, and estimating the SOC using the estimated kinetic parameters. | 11-21-2013 |
20130311117 | Battery System and Method with Capacity Estimator - An electrochemical battery system in one embodiment includes at least one electrochemical cell, a current sensor configured to generate a current signal, a voltage sensor configured to generate a voltage signal, a memory in which command instructions are stored, and a processor configured to execute the command instructions to obtain the current signal and the voltage signal, and to generate an estimated cell nominal capacity (C | 11-21-2013 |
20130311118 | OPEN CIRCUIT VOLTAGE ESTIMATION DEVICE, CONDITION ESTIMATION DEVICE, AND METHOD OF ESTIMATING OPEN CIRCUIT VOLTAGE - An open circuit voltage estimation device for estimating an open circuit voltage of an electric storage device includes a voltage measurement portion and a controller. The voltage measurement portion measures terminal voltages of the electric storage device. The controller is configured to: control the voltage measurement portion to measure the terminal voltages; store the terminal voltages in association with elapsed time since charge or discharge completion time; calculate a variation in terminal voltage per unit time at predetermined elapsed time since the charge or the discharge of the electric storage device is complete based on the terminal voltages measured by the voltage measurement portion; and estimate the open circuit voltage based on the predetermined elapsed time, the voltage at the predetermined elapsed time, and the variation. | 11-21-2013 |
20130311119 | METHOD OF DETECTING BATTERY FULL-CHARGE CAPACITY - A method including a remaining charge capacity determination step to determine a first remaining charge capacity from the first open circuit voltage and a second remaining charge capacity from the second open circuit voltage, a change in remaining charge capacity computation step to compute the change in remaining charge capacity from the difference between the first remaining charge capacity and the second remaining charge capacity, and a full-charge capacity computation step to compute the battery full-charge capacity from the change in remaining charge capacity and the change in charge capacity. The method computes battery full-charge capacity from the change in charge capacity and the change in remaining charge capacity when at least one of the values, namely the change in charge capacity, the change in remaining charge capacity, and the difference between the first open circuit voltage and the second open circuit voltage, is greater than a preset value. | 11-21-2013 |
20130317771 | MODELING CHANGES IN THE STATE-OF-CHARGE OPEN CIRCUIT VOLTAGE CURVE BY USING REGRESSED PARAMETERS IN A REDUCED ORDER PHYSICS BASED MODEL - A method for modeling changes in the state of charge vs. open circuit voltage (SOC-OCV) curve for a lithium-ion battery cell as it ages. During battery pack charging, voltage and current data are gathered for a battery cell. A set of state equations are used to determine the stoichiometry and state of charge of the cathode half-cell based on the charging current profile over time. The voltage and current data, along with the stoichiometry and state of charge of the cathode half-cell, are then used to estimate maximum and minimum solid concentration values at the anode, using an error function parameter regression/optimization. With stoichiometric conditions at both the cathode and anode calculated, the cell's capacity and a new SOC-OCV curve can be determined. | 11-28-2013 |
20130325379 | INTERNAL RESISTANCE ESTIMATION DEVICE AND METHOD OF ESTIMATING INTERNAL RESISTANCE - An internal resistance estimation device for estimating an internal resistance of an electric storage device includes a current measurement portion, a voltage measurement portion, and a controller. The current measurement portion is configured to measure a charge current to the electric storage device. The voltage measurement portion is configured to measure a terminal voltage of the electric storage device. The controller is configured to estimate an internal resistance of the electric storage device based on the charge current and the terminal voltage measured in a restrictive period of charge time for charging the electric storage device. The restrictive period is a period in which a time variation in charge current is constant. | 12-05-2013 |
20130338950 | APPARATUS AND METHOD FOR ESTIMATING VOLTAGE OF SECONDARY BATTERY INCLUDING BLENDED CATHODE MATERIAL - Disclosed is an apparatus for estimating a voltage of a secondary battery which includes a cathode comprising a first cathode material and a second cathode material with different operating voltage ranges, an anode comprising an anode material and a separator for separating the cathode from the anode. The apparatus comprises a control unit configured to estimate a voltage of a secondary battery based on a circuit model including a first cathode material circuit, a second cathode material circuit and an anode material circuit, each circuit modeled to change its voltage according to State Of Charge (SOC) of the electrode material corresponding the circuit and a current flowing through the circuit. | 12-19-2013 |
20130346000 | BATTERY SYSTEM FOR SECONDARY BATTERY COMPRISING BLENDED CATHODE MATERIAL, AND APPARATUS AND METHOD FOR MANAGING THE SAME - Disclosed is a battery system for a secondary battery including a blended cathode material, and an apparatus and method for managing a secondary battery having a blended cathode material. The blended cathode material includes at least a first cathode material and a second cathode material. The first and second cathode materials have different operating voltage ranges. When the secondary battery comes to an idle state or a no-load state, the battery system detects a voltage relaxation occurring by the transfer of operating ions between the first and second cathode materials. | 12-26-2013 |
20130346001 | METHOD AND DEVICE FOR PREDICTING STATE-OF-HEALTH OF BATTERY, AND BATTERY MANAGEMENT SYSTEM USING SAME - Disclosed are a method and a device for predicting a state-of-health of a battery and a battery management system using same. The method for predicting a state-of-health of a battery includes estimating state-of-health (SOH) estimation values for predicting an aged degree of the battery for each time; aligning the plurality of estimated values to create a history table; extracting candidate values from the history table; and determining a targeted SOH of the battery based on the candidate values. | 12-26-2013 |
20140005965 | Method of Evaluating Remaining Power of a Battery for Portable | 01-02-2014 |
20140019074 | MEASUREMENT SYSTEM - A measurement system according to one aspect of the present invention includes a battery pack and at least one type of connected device to which the pack is connected. The pack includes a first detection device detecting a predetermined physical quantity in the pack and having a predetermined measurement range. The connected device includes a second detection device detecting a physical quantity the same as the predetermined physical quantity and having a measurement range different from the range of the first detection device. One of the pack and the connected device includes a receiving device and a measurement processing device that performs a predetermined measurement process by using one of: a detection-value-related information received by the receiving device; and a detection result by one device of the first detection device and the second detection device, the one device being provided in one of the pack and the connected device. | 01-16-2014 |
20140025322 | METHOD FOR PERFORMING POWER CONSUMPTION MANAGEMENT, AND ASSOCIATED APPARATUS - A method and an apparatus for performing power consumption management are provided, where the method is applied to an electronic device. The method includes: obtaining current information corresponding to an application from a database, the current information being of at least one current on at least one current path between a battery and at least one portion of the electronic device; and performing battery drain prediction corresponding to the application according to the current information. The method may further include: performing sampling operations to generate a plurality of samples of the current, and more particularly, utilizing an ADC to perform analog-to-digital conversion on a voltage difference corresponding to the current to generate the plurality of samples. The voltage difference can be obtained by probing two terminals of a resistor or a Hall component. | 01-23-2014 |
20140025323 | CELL VOLTAGE MONITORING AND SELF-CALIBRATING DEVICE - A cell voltage monitoring and self-calibrating device for a plurality of battery cells connected in series is disclosed. The device includes a first voltage measurement unit, a second voltage measurement unit, a first compensation unit, a second compensation unit and a calculating unit. It can measure voltages of each cell in a battery pack which provides power to electric equipment and calibrates itself during measurement. | 01-23-2014 |
20140025324 | OPEN CIRCUIT VOLTAGE CALCULATING SYSTEM AND METHOD - An electronic device being used to calculate an open circuit voltage of a battery built in the electronic device. The electronic device reads a charging voltage and a charging current, a discharging voltage and a discharging current. The electronic device calculates the open circuit voltage of the battery according to the charging voltage, the charging current and the resistance if the battery is charging. The electronic device calculates the open circuit voltage of the battery according to the discharging voltage, the discharging current and the resistance if the battery is discharging. | 01-23-2014 |
20140032141 | System and Method for Posteriori Adaptation of a State of Charge Model in a Battery - A method for estimating a state of charge in a battery includes identifying a first state of charge in the battery at a first time, identifying the first state of charge in the battery at a second time after operation of the battery, identifying an estimated state of charge at the second time with reference to a model having a plurality of model parameters, modifying at least one of the plurality of model parameters with reference to an error between the estimated state of charge and the first state of charge, and generating an output corresponding to an estimate of the state of charge of the battery using the model with the at least one modified parameter while operating the battery in the at least one operating mode after the second time. | 01-30-2014 |
20140052395 | METHOD AND APPARATUS FOR ESTIMATING THE REMAINING TIME REQUIRED TO FULLY CHARGE A BATTERY, AND MOBILE DEVICE INCORPORATING THEREOF - A method, an apparatus and a mobile device estimate remaining time required to fully charge a battery. The method may include (a) determining from one or more of the mobile device's charging records the time required for charging the battery of the mobile device by one unit of charge (“unit charging time”); and (b) based on the time so determined, calculating the remaining time required for fully charging the mobile device's battery. In this manner, an accurate estimate of the remaining charging time is achieved. In one instance, the charging record includes the initial charge (A) in the battery, expressed as a percentage of the full capacity, the final charge (B) in the battery at the end of the charging, also expressed as a percentage of full capacity, and the total charging time required (T). Each unit of charge may be, for example, 1% of the full charge of the battery. | 02-20-2014 |
20140052396 | Device and Method for Measuring the Capacity Degradation of a Battery - Provided are an apparatus and a method for measuring battery capacity fade. The apparatus for measuring battery capacity fade includes: at least one battery used in a hybrid vehicle, a plug-in hybrid electric vehicle or an electric vehicle; a sensing unit sensing current, voltage and temperature of the at least one battery; a data processing unit measuring voltage and current data from the sensing unit if the current is constant current in a charging period and state of charge (SOC) is in a predetermined region; and a calculating unit setting at least two points on the voltage data and applying the voltage data corresponding to the at least two points to an equivalent circuit model of the at least one batter, to calculate faded capacity. | 02-20-2014 |
20140067297 | Optimized method for thermal management of an electrochemical storage system - The present invention relates to an optimized method for thermal management of the surface and core temperature of an electrochemical system under nominal and extreme operating conditions. For applications relating to hybrid and electric vehicles, the thermal state (T) at the surface and in the core of the constituent elements of the system has to be controlled in order to prevent thermal runaway, fire and explosion risks. Reconstruction of the internal characteristics that are not directly measurable, such as the temperature in the core of the elements, is carried out using an electrical, thermal and thermochemical runaway model of the battery. | 03-06-2014 |
20140074416 | APPARATUS AND METHOD FOR ESTIMATING BATTERY STATE - Disclosed is an apparatus and method for estimating a battery state, the apparatus including a measurement unit for measuring a terminal voltage, a charging/discharging current and a current offset value of a battery, a prediction unit for predicting a state variable and an output variable according to a state equation including SOC and an overpotential of the battery as state variables and includes a terminal voltage of the battery as an output variable, a correction unit for correcting the predicted state variable, a SOC estimation unit for estimating SOC of the battery by means of the corrected state variable, and a control unit for selecting a single state variable to estimate SOC of the battery according to the measured current offset value, so that the SOC estimation unit estimates SOC of the battery by means of the selected state variable. | 03-13-2014 |
20140088896 | DEVICE AND METHOD FOR DETECTING STATE OF HEALTH OF BATTERIES - A device for detecting state-of-health (SOH) of batteries has a detection module, a computation control module and an output module. The computation control module is electrically connected to the detection module and the output module. The detection module detects voltage values of a battery at multiple test points. The computation control module converts the voltage values at the test points into a ratio and maps the ratio to a SOH value in a SOH curve of the battery indicative of a state of health of the battery and the SOH value is outputted through the output module. The present invention can easily detect the SOH of a battery within a short period of time to solve the existing problems of being time-consuming and complicated in determining the SOH of batteries and causing incorrect determination of battery capacity and additional maintenance cost. | 03-27-2014 |
20140088897 | Computer Implemented Method for Diagnositc Analytics for Battery Life Management - A computer implemented method combines a simplified equivalent circuit model with a model capturing the variation of the circuit parameters. The components of the equivalent circuit model depend on the internal battery state, and the parameters of the model encode this dependence. The invention then uses actual operational data capturing various modes of operation of the battery and different discharge rates to fit the model parameters (rather than controlled laboratory tests used in previous work). Once this analysis is done (offline), the model can be used in an online phase to adjust estimates of the internal battery state as the battery is operating. | 03-27-2014 |
20140088898 | Method for Estimation State of Health for ESS - Provided is a system for estimating a state of health for an ESS, including: a pack voltage calculating processor receiving cell voltage of a battery cell that is the most basic of an energy storage system (ESS) to calculate pack voltage of a battery pack; an SOH estimating processor receiving the pack voltage from the pack voltage calculating processor and setting preconditions for estimating state of health (SOH) to estimate the SOH meeting the preconditions; an SOH calculating processor confirming pack voltage when meeting the preconditions at the time of estimating the SOH and calculating the SOH by using a voltage difference between the confirmed current pack voltage and initial pack voltage; and an SOC compensating processor calculating a state of charge (SOC) compensating capacity by multiplying initial rated capacity by the SOH received from the SOH calculating processor. | 03-27-2014 |
20140095089 | SYSTEM AND METHOD FOR ESTIMATED BATTERY STATE OF CHARGE - A method for diagnosing an estimated battery state of charge is provided. The method includes estimating a first state of charge of a battery at a first time with a state-of-charge sensor, estimating a second state of charge of the battery at the first time, calculating a difference between the first state of charge and the second state of charge, and comparing the difference between the first state of charge and the second state of charge to a predetermined value to determine whether the battery sensor is within operating parameters. A system for estimating battery state of charge is further provided. The system includes a state-of-charge sensor configured to estimate a first state of charge of a battery at a first time, and a processor connected to the battery sensor and configured to estimate a second state of charge of the battery at the first time, and compare a difference between the first state of charge to the second state of charge to a predetermined value to determine whether the battery sensor is within operating parameters. | 04-03-2014 |
20140095090 | RESIDUAL BATTERY CAPACITY ESTIMATION SYSTEM THAT ADDS TWO MUTUALLY PERPENDICULAR COMPONENTS AND THE METHOD THEREOF - A residual battery capacity estimation system that adds two mutually perpendicular components and the method thereof are provided. The mechanism detects the battery voltage, current and temperature as the sensing parameters, and uses the preset electrical characteristic parameters and capacity change to look up a table for the battery dynamic internal resistance component. The mechanism uses the sensing parameters and the Coulomb counting method to calculate the component of the battery Coulomb counting charge. Afterwards, the battery dynamic internal resistance component and the battery Coulomb counting capacity component are then added to calculate the actual residual power of the battery. The mechanism achieves the goal of increasing the accuracy in estimating the battery residual power. | 04-03-2014 |
20140095091 | METHODS AND APPARATUS FOR MODELING, MONITORING, ESTIMATING and CONTROLLING POWER CONSUMPTION IN BATTERY-OPERATED DEVICES - A computer-based processing system (e.g., host server) is operable for receiving historical device operation information (power consumption data) collected during operation of the remote battery-operated device in accordance with a first set of operating parameters, including rechargeable battery information (such as the number of charging cycles experienced). The first set of operating parameters enable operation of the battery-operated device in a first operating mode. The processing system calculates an observed battery life for the device based on the received historical power consumption data and a power capacity value representing a power capacity of the battery resident in the device. This observed battery life may be output to a user and used to determine whether the device will meet a predetermined operational life. If not, parameters for the device can be modified and a new projected battery life calculated (simulation), with the new modified parameters controlling power consumption in the device. | 04-03-2014 |
20140095092 | STATE EVALUATION APPARATUS OF SECONDARY BATTERY, STATE EVALUATION METHOD OF SECONDARY BATTERY, AND COMPUTER-READABLE MEDIUM STORING STATE EVALUATION PROGRAM OF SECONDARY BATTERY - A state evaluation apparatus of a secondary battery, the state evaluation apparatus includes at least one processor configured to perform a process including calculating internal resistance based on a measured voltage value and current value of the secondary battery and calculating internal temperature of the secondary battery and obtaining an amount of charge and discharge electric charge of the secondary battery based on the current value, or obtaining a charge state that indicates a charging rate of the secondary battery based on the current value and the voltage value, and calculating a battery state that indicates a state after deterioration of the secondary battery, based on the internal temperature and at least one of the amount of charge and discharge electric charge and the charge state. | 04-03-2014 |
20140095093 | APPARATUS AND METHOD FOR MEASURING INSULATION RESISTANCE OF BATTERY - Disclosed is an apparatus for measuring an insulation resistance that may calculate each of a cathode terminal-side insulation resistance value and an anode terminal-side insulation resistance value of a battery. The apparatus for measuring an insulation resistance according to the present disclosure forms different first and second circuits by selectively connecting an insulation resistance measurement unit to a cathode terminal or an anode terminal of the battery, and calculates a cathode terminal-side insulation resistance value and an anode terminal-side insulation resistance value from first and second insulation detection voltages applied to the insulation resistance measurement unit and simultaneous circuit equations derived from the first and the second circuits. Accordingly, quantitative insulation resistance values of the cathode terminal and the anode terminal of the battery may be each obtained. | 04-03-2014 |
20140100802 | Method and computer system for measuring remaining battery capacity - A method for measuring a remaining capacity of a chargeable magnetic material includes determining a discharging parameter, obtaining an open-circuit-voltage state-of-charge (OCV SOC) curve according to the discharging parameter, obtaining a discharging curve according to the OCV SOC curve and the discharging parameter, and processing an interpolation operation to measure the remaining capacity according to the OCV SOC curve and the discharging curve. | 04-10-2014 |
20140100803 | POWER ESTIMATION DEVICE FOR ESTIMATING CHARGEABLE/DISCHARGEABLE POWER OF ELECTRIC STORAGE DEVICE, ELECTRIC STORAGE APPARATUS, AND METHOD OF ESTIMATING CHARGEABLE/DISCHARGEABLE POWER - A power estimation device for estimating at least one of chargeable power and dischargeable power of an electric storage device, the power estimation device includes a memory unit and a processing unit. The memory unit stores a reference power value. The processing unit is configured to perform: a condition determination process to determine whether a condition of the electric storage device is a voltage limit condition or a current limit condition; a first power estimation process to estimate chargeable/dischargeable power by multiplying the reference power value by a first correction factor if the condition of the electric storage device is the current limit condition; and a second power estimation process to estimate chargeable/dischargeable power by multiplying the reference power value by a second correction factor that is different from the first correction factor if the condition of the electric storage device is the voltage limit condition. | 04-10-2014 |
20140107956 | METHOD OF ESTIMATING BATTERY LIFE, BATTERY LIFE ESTIMATION DEVICE, ELECTRIC VEHICLE, AND ELECTRIC POWER SUPPLY APPARATUS - A method of estimating a battery life includes: for a secondary battery having a degradation rate R when X days have elapsed after initial charge of the secondary battery, calculating a degradation estimation value (X+Y) days after the initial charge from degradation master data, the degradation master data being identified with use of conditions of temperature T provided for the calculation and a battery state S provided for the calculation; and deriving number of elapsed days Xcorr giving the degradation rate R based on the identified degradation master data, and calculating the degradation estimation value (Xcorr+Y) days after the initial charge from the identified degradation master data. | 04-17-2014 |
20140114593 | APPARATUS AND METHOD FOR CALCULATING ELECTRICAL CHARGE QUANTITY OR ELECTRICAL DISCHARGE QUANTITY FOR BATTERY UNIT ACCORDING TO CALIBRATION PARAMETER USED FOR ADJUSTING TIME INTERVAL OF ELECTRICAL CHARGE/DISCHARGE CALCULATION, AND METHOD FOR CALIBRATING INTEGRAL TIME INTERVAL - A method for calculating electrical charge/discharge quantity for a battery unit includes: utilizing an oscillator for generating a clock signal; providing a storage unit for storing a calibration parameter that is used for adjusting or calibrating a time interval of electrical charge/discharge calculation; determining when to generate an interrupt signal to a controller according to the clock signal and the calibration parameter; and measuring a current associated with the battery unit and calculating the electrical charge/discharge quantity for the battery unit when the interrupt signal is generated. | 04-24-2014 |
20140114594 | METHOD FOR PERFORMING CELL BALANCING OF A BATTERY SYSTEM BASED ON CELL CAPACITY VALUES - A method for calculating the charge to balance for cells in a multi-cell battery. The method determines a depletion-goal state of charge (SOC) for the battery cells. The method determines a corresponding set of depletion-goal charges and usable charges for the set of cells, where the depletion-goal charge is calculated using the corresponding charge capacity and depletion-goal SOC and the usable charge is calculated using the corresponding actual charge and depletion-goal charge. The method determines a charge-bias using the set of usable charges. The method determines for the set of cells a corresponding set of charges to balance from the set of usable charges and the charge-bias. | 04-24-2014 |
20140114595 | Method for Determining a Maximum Available Constant Current of a Battery - A method for determining a maximum constant current of a battery available over a prediction period is described. The method comprises determining a battery state and determining the solution to a differential equation which describes the temporal development of the battery state over the course of the prediction period with the aid of an equivalent circuit diagram model. A battery management unit is also provided and is configured to carry out the method according to the disclosure. The battery management unit includes a device configured to determine the battery state and a control unit configured to determine the solution to the differential equation. A battery having a battery management unit according to the disclosure and a motor vehicle comprising a battery management unit according to the disclosure or a battery according to the disclosure are also provided. | 04-24-2014 |
20140129162 | BATTERY WITH COMPUTING, SENSING AND COMMUNICATION CAPABILTIES - Electrical battery apparatus embodiments are presented that generally involve incorporating sensing, computing, and communication capabilities into the one common component that a vast number of electronic devices employ—namely batteries. By integrating these capabilities into disposable and/or rechargeable batteries, new functionality and intelligence can be provided to otherwise stand-alone devices. | 05-08-2014 |
20140129163 | BATTERY CAPACITY AND DURABILITY PREDICTION METHOD - A method of determining battery performance information indicative of a performance of a battery in a device is disclosed, the method including: receiving environmental condition information indicative of environmental conditions of the device during a usage period; receiving operating parameter information indicative of one or more operating parameters of the battery during the usage period; and determining the battery performance information based at least in part on: the environmental condition information, the operating parameter information, and a performance model corresponding to the battery. | 05-08-2014 |
20140129164 | SYSTEM AND METHOD TO REDUCE DATA HANDLING ON LITHIUM ION BATTERY MONITORS - An example method to reduce data handling on lithium ion battery monitors is provided and includes receiving a request from a micro-controller for data associated with one or more cells, receiving signals corresponding to monitored properties from the cells, calculating derivative properties from the monitored properties, dividing a default data into a plurality of portions, and sending the derivative properties and one of the portions to the micro-controller according to at least a first compute logic option or a second compute logic option. The default data can include cell voltages, auxiliary inputs, stack voltage, reference output voltage, analog voltage output, analog voltage input, temperature, and reference buffer voltage. The default data is provided sequentially to the micro-controller in as many consecutive read backs as the number of portions, where each portion corresponds to the default data measured at a distinct time instant. | 05-08-2014 |
20140129165 | BATTERY CONTROL IC AND CONTROL METHOD THEREFORE - A battery control IC includes a voltage measurement unit that measures, in a normal current mode, a voltage value of each of a plurality of unit battery cells forming a battery pack, and measures, in a short-time large-current mode, a voltage value of a unit battery cell that has exhibited a lowest voltage value in the normal current mode, and a calculation unit that calculates an available power value of the battery pack in the short-time large-current mode based on a voltage value, measured in the short-time large-current mode, of the unit battery cell that has exhibited the lowest voltage value in the normal current mode. | 05-08-2014 |
20140136132 | ANALYSIS APPARATUS AND ANALYSIS METHOD - Provided are an analysis apparatus and an analysis method which are capable of recognizing a local state change of an internal structure of a secondary battery. The analysis apparatus includes: an observation cell that houses a secondary battery; a charging and discharging controller that controls charging and discharging of the secondary battery; an image pickup device that captures color images of the secondary battery at a predetermined time interval; and a charging and discharging data detection unit that acquires charging and discharging data on the secondary battery during charging and discharging. Color image signals output from the image pickup device and charging and discharging data signals output from the charging and discharging data detection unit are supplied to a signal processing device. The signal processing device outputs a unit that temporally links time-series color image signals and time-series charging and discharging data signals, and designated analysis data. | 05-15-2014 |
20140149057 | ESTIMATING THE BATTERY LIFE OF A PORTABLE ELECTRONIC DEVICE BASED ON USAGE LOGS - The present embodiments provide a system that estimates a battery life for a portable electronic device. During operation, the system obtains a usage log containing traces of user-related system activity for the portable electronic device. Next, the system runs the usage log against a power model for the portable electronic device to determine the power consumption for the portable electronic device. Finally, the system uses the determined power consumption to estimate a battery life for the portable electronic device. In some embodiments, estimating the battery life involves determining a battery size to achieve a desired battery life for the portable electronic device. | 05-29-2014 |
20140149058 | MEASURING DEVICES OF REMAINING BATTERY LIFE AND MEASURING METHODS THEREOF - A remaining battery life measuring device may include a first estimator configured to estimate a state of charging of a battery using an open circuit voltage of the battery; a second estimator configured to estimate the state of charging of the battery using charge, discharge, or charge and discharge currents of the battery; a correction unit configured to generate a correction value on the state of charging estimated by the second estimator, based on the state of charging estimated by the first estimator or an output state of charging; and/or a state of charging (SOC) processing unit configured to calculate the output state of charging using the state of charging estimated by the second estimator and an accumulated correction value. The accumulated correction value may be generated based on the correction value. | 05-29-2014 |
20140156209 | DEVICES WITH BATTERY REMAINING CAPACITY ESTIMATING FUNCTIONS - A device includes an interface and a processor. The interface receives information for a parameter indicative of a status of a battery. The processor calculates a remaining capacity of the battery, calculates a capacity ratio of the calculated remaining capacity to a capacity reference of the battery, compares the parameter with a parameter reference to generate a first comparison result, compares the capacity ratio with a ratio reference to generate a second comparison result, sets an amount according to the first and second comparison results, and changes the calculated remaining capacity by the amount. | 06-05-2014 |
20140163909 | LOAD CELL RESIDUAL FATIGUE LIFE ESTIMATION SYSTEM AND METHOD - A system and method for estimating the residual fatigue life of a load cell includes storing, in a memory, fatigue life reference data associated with a test load cell. A predetermined number of data storage bins are provided. Each data storage bin is representative of a predefined value range of peak loads. Peak loads applied to an in-service load cell are detected, and each is stored in an appropriate one of the data storage bins. A number of load cycles of the in-service load cell are calculated based on the detected peak loads stored in each of the data storage bins. An estimate of the residual life of the in-service load cell is calculated from the fatigue life reference data and the calculated number of load cycles of the in-service load cell. | 06-12-2014 |
20140163910 | BATTERY POWER MEASURING METHOD, MEASURING DEVICE AND BATTERY-POWERED EQUIPMENT - Disclosed herein are various battery power measurement devices, methods, and related apparatuses. In one embodiment, a method of measuring a battery power can include: (i) detecting a voltage and a temperature at an output terminal of a battery; (ii) obtaining a first correction coefficient based on a battery open-circuit voltage at a previous sample time; (iii) obtaining a second correction coefficient based on the battery temperature; (iv) calculating a real-time battery open-circuit voltage by using the voltage at the output terminal of the battery, the first and second correction coefficients, the battery open-circuit voltage at the previous sample time, and a time interval between the previous sample time and a present sample time; and (v) converting the real-time battery open-circuit voltage into a battery power measurement for display. | 06-12-2014 |
20140172332 | METHODS AND SYSTEMS FOR DETERMINING WHETHER A VOLTAGE MEASUREMENT IS USABLE FOR A STATE OF CHARGE ESTIMATION - Systems and methods for improvements in battery state of charge accuracy, charge termination consistency, capacity estimation, and energy delivery consistency. More specifically, embodiments herein detail systems and methods using an algorithm to calculate the change in state of charge for a given voltage change (dSOC/dV) at a given temperature in a region around the present voltage measurement or estimation and to set a signal indicating when the measurement should not be used due to potential error. | 06-19-2014 |
20140172333 | SYSTEMS AND METHODS FOR STATE OF CHARGE ESTIMATION - The present disclosure includes systems and methods for state of charge estimation. In one embodiment, the present disclosure includes a method comprising receiving a voltage corresponding to a state of charge of a battery, converting the voltage to an estimated state of charge using different algorithms across different ranges. In another embodiment, an offset state of charge is applied to a first state of charge to produce an estimated state of charge. | 06-19-2014 |
20140172334 | METHOD FOR CHARACTERIZATION OF ACCUMULATORS AND RELATED DEVICES - A method for characterization of the parameters of an equivalent model of an accumulator is described. The method is based on an accumulator equivalent circuit modelling primary and secondary chemical reactions. The method includes: a step of identification of the accumulator equivalent circuit; a step of characterization of the primary reactions during an accumulator charging process, wherein measurements of a given number of electric parameters of primary reactions branch in absence of secondary reactions are performed; a step of characterization of the secondary reactions during the charging process when also the secondary reactions are active; and a calculation step, that can be performed subsequently to the charging process, wherein mathematical functions allowing to extrapolate the values of the electric parameters in correspondence of a given state of charge are determined. A charging system, a charge control system, a computer and a storing device related to the method are also described. | 06-19-2014 |
20140180614 | System And Method For Selective Estimation Of Battery State With Reference To Persistence Of Excitation And Current Magnitude - A method of monitoring a battery with a controller identifies appropriate times for estimating a state of the battery. The method includes identifying a persistence of excitation in the battery, identifying a magnitude of an electrical current that is supplied to the battery, and performing a state estimation process for the battery only in response to the identified persistence of excitation exceeding a first predetermined threshold and the identified magnitude of the electrical current exceeding a second predetermined threshold. | 06-26-2014 |
20140188412 | APPLICATION IDLE CURRENT DRAIN MEASUREMENT - A device may identify an exhibited idle mode current draw according to test results representative of measured current usage associated with execution of an application under test on a test mobile device in communication with a live communications network of a network service provider; determine a battery consumption rating associated with the application under test according to the idle mode current draw and predetermined rating criteria; and update a listing of application ratings based on the determined battery consumption rating of the application under test. | 07-03-2014 |
20140188413 | REMOTE SENSING OF REMAINING BATTERY CAPACITY USING ON-BATTERY CIRCUITRY - A method of remote sensing a charge includes charging or discharging a capacitor of an RC circuit to a predetermined threshold voltage using a power source. A response signal is provided from a communications module to a handheld computing device comprising a reader system once the capacitor reaches the predetermined threshold voltage. An amount of time taken for the handheld computing device to receive the response signal is determined using a processor. The processor determines charge information using the amount of time. | 07-03-2014 |
20140188414 | METHOD AND SYSTEM FOR MEASURING IMPEDANCE FOR DIAGNOSIS OF FUEL CELL STACK - A method and system for measuring impedance of a fuel cell stack that can rapidly measure impedance of a plurality of frequencies of the fuel cell stack using a sine wave signal in which a different plurality of frequencies are synthesized as an impedance measurement input signal, for diagnosis of the state of a fuel cell stack includes: synthesizing a plurality of sine wave signals having different frequencies; applying the synthesized signal as an input signal for measuring to the fuel cell stack; measuring a current and a voltage of the fuel cell stack; transforming the measured current and voltage of the fuel cell stack with a predetermined method; and calculating impedance of the fuel cell stack of the different frequencies based on the current and voltage of the fuel cell stack that is transformed with the predetermined method. | 07-03-2014 |
20140188415 | Apparatus and Method for Accurate Energy Device State-of-Health (SoH) Monitoring - A device and associated testing method for testing state of health of an energy device, comprising: applying electrical excitations to the energy device at a predetermined electrical excitation frequency ω | 07-03-2014 |
20140195179 | SYSTEMS AND METHODS TO CAPTURE AND UTILIZE TEMPERATURE INFORMATION IN A BATTERY SYSTEM - Disclosed herein are various systems and methods for capturing and utilizing temperature information in a battery pack. An electrical measurement system may be configured to determine a subdivision electrical parameter associated with one or more subdivisions, and a thermal measurement system configured to determine and track a thermal parameter associated with one or more subdivisions. A battery model may utilize the thermal parameter and the electrical parameter to estimate a characteristic of one or more battery subdivisions. In some embodiments, the battery model may further estimate a second thermal parameter of a second subdivision based upon a location of the second subdivision within the battery pack and based on the estimated characteristic of a first subdivision. Some embodiments may further estimate a life assessment of one or more subdivisions based at least in part on the subdivision electrical parameter and the thermal parameter. | 07-10-2014 |
20140195180 | ELECTRONIC DEVICE POWER MANAGEMENT - A method of power management for an electronic device that is coupled to a protective case for the electronic device is provided. The method includes receiving data including a charge level of a battery of the protective case, identifying a charge level of a battery of the electronic device, and generating a graphical representation. The graphical representation includes an indication of the charge level of the protective case battery and an indication of a charge level of the electronic device battery. The method further includes displaying the graphical representation on a display of the electronic device. | 07-10-2014 |
20140195181 | RECYCLED SECONDARY BATTERY SUPPLY FORECAST SYSTEM AND RECYCLED SECONDARY BATTERY SUPPLY FORECAST USAGE - A recycled battery supply forecast unit | 07-10-2014 |
20140214346 | ADAPTIVE AVAILABLE POWER ESTIMATION FOR HIGH VOLTAGE LITHIUM ION BATTERY - The present invention provides for a method and computer program product for estimating battery available power from a battery system in relation to a cell voltage, comprising: determining the cell voltage, a power command of the battery system; and a cell voltage threshold. The processes used by the present invention, include a static and a dynamic portion in which cell voltages, cell voltage thresholds and power command are associated and processed using a feed forward estimator and a proportional-integral-derivation (PID) controller to determine the final power command estimation for the requisite battery system. | 07-31-2014 |
20140214347 | METHOD TO DETECT OPEN-CIRCUIT VOLTAGE SHIFT THROUGH OPTIMIZATION FITTING OF THE ANODE ELECTRODE HALF-CELL VOLTAGE CURVE - Methods are disclosed for modeling changes in capacity and the state of charge vs. open circuit voltage (SOC-OCV) curve for a battery cell as it ages. During battery pack charging, voltage and current data are gathered for a battery cell. In one method, using multiple data points taken during the plug-in charge event, data optimization is used to determine values for two parameters which define a scaling and a shifting of the SOC-OCV curve from its original shape at the cell's beginning of life to its shape in the cell's current condition. In a second method, only initial and final voltages and current throughput data are needed to determine the values of the two parameters. With the scaling and shifting parameters calculated, the cell's updated capacity and updated SOC-OCV curve can be determined. The methods can also be applied to data taken during a discharge event. | 07-31-2014 |
20140214348 | Method for Estimating a State of Charge of Batteries - A method estimates a state-of-charge (SoC) of a battery by constructing a set of two or more battery models. Each battery model is associated with an adaptive SOC estimator. A set of intermediate SOCs is estimated using the models and the associate adaptive SoC estimators. Then, the set of intermediate SoCs are fused to obtain a final SoC of the battery. | 07-31-2014 |
20140214349 | ESTIMATING CONDITION OF BATTERY, RELATED SYSTEM AND VEHICLE - An apparatus for estimating a condition of a battery includes a mode identifying unit configured to identify a usage mode of the battery during a period of time and its corresponding attenuation curve, according to recorded data on battery usage, stored usage modes of the battery and attenuation curves corresponding to the various usage modes, the attenuation curve representing a change of a fully charged capacity of the battery with battery usage; and a condition estimating unit configured to calculate battery degradation according to the recorded data, the identified usage mode and its corresponding attenuation curve, the degradation representing a quantity of the fully charged capacity of the battery that is reduced over the battery usage. The condition of the battery is estimated so as to rationally judge the residual value of the battery in operation. | 07-31-2014 |
20140222358 | CELL PERFORMANCE ESTIMATION METHOD AND CELL PERFORMANCE ESTIMATION APPARATUS - According to one embodiment, a cell performance estimation method includes storing data obtained by measuring a cell temperature, an electric current, and a voltage while a secondary cell is charged or discharged, estimating an internal resistance value of the cell by using the cell temperature data, the electric current data, and the voltage data, and predetermined data indicating a relationship between a charged capacity and open circuit voltages of a cathode active material and anode active material, calculating a reaction resistance component, an ohmic resistance component, and a diffusion resistance component from the estimated internal resistance value and correcting the estimated internal resistance value based on a value obtained by correcting the reaction resistance component, the ohmic resistance component, and the diffusion resistance component in accordance with a temperature, and adding up the corrected values. | 08-07-2014 |
20140222359 | APPARATUS AND METHOD FOR MANAGING BATTERY APPLICATION ENVIRONMENT AND USAGE HISTORY - Disclosed is an apparatus and method for managing a battery that may manage a surrounding environment and a usage history of the battery. The battery management apparatus senses a temperature of an environment to which the battery is exposed, and stores a period of time during which the battery is exposed to a high temperature when the sensed temperature corresponds to a preset first or second area. In this instance, the battery management apparatus may determine whether the battery is simply exposed to the high temperature or the battery is charged or discharged while exposed to the high temperature, and store a usage time together. According to the present disclosure, information about a time domain affecting the life or performance of the battery may be calculated in consideration of the temperature environment to which the battery is exposed. | 08-07-2014 |
20140236509 | APPARATUS FOR DETECTING FAULTS IN BATTERY SYSTEM - An apparatus for detecting a fault in a battery system, the apparatus including: a voltage detector configured to receive a voltage signal from the battery system and to digitize the voltage signal to generate voltage data; a discrete wavelet transformer configured to receive the voltage data and to perform a discrete wavelet transformation of the voltage data to generate transformation data; a statistical processor configured to receive the transformation data and to process the transformation data to generate statistical data, the statistical data including an average value of the transformation data; and a fault diagnosing unit configured to detect the fault in the battery system based on the statistical data and to transmit a fault signal when the fault is detected. | 08-21-2014 |
20140236510 | DISTRIBUTED BATTERY MANAGEMENT SYSTEM AND METHOD OF IDENTIFICATION DISTRIBUTION USING THE SAME - A distributed battery management device and a method thereof are provided. The method comprises: receiving, by a battery management control module, a first identification distribution request from a first data acquisition module; activating, by the battery management control module, the first data acquisition module for monitoring one or more batteries; and sending, by the battery management control module, a first identification message corresponding to the first identification distribution request, to the first data acquisition module. The device comprises: a battery management control module; and a first data acquisition module communicatively coupled with the battery management control module, wherein the battery management control module and the first data acquisition module are configured to communicate with each other to identify the data acquisition module. | 08-21-2014 |
20140236511 | SYSTEM AND METHOD FOR DETERMINING STATE OF CHARGE OF A BATTERY - A novel method and system for determining state of charge of a battery (SOC) is disclosed wherein the direct method and the indirect method are not used at the same time, but alternately as indicated by battery current status. The method of the invention compensates for the exiting modeling errors and parameter estimation errors to provide an accurate SOC estimation. The method of the invention computes the DC offset and the battery capacitance to compensate for the exiting modeling errors and parameter estimation errors. | 08-21-2014 |
20140244193 | BATTERY STATE OF CHARGE TRACKING, EQUIVALENT CIRCUIT SELECTION AND BENCHMARKING - A method includes calculating a first estimated state of charge (SOC) of a battery at a first time, receiving a voltage value representing a measured voltage across the battery at a second time, calculating a filter gain at the second time, and calculating a second estimated SOC of the battery at the second time based on the first estimated SOC, the voltage value, and the filter gain. Another method includes storing, in a memory, a library of equivalent circuit models representing a battery, determining an operational mode of a battery based on a load associated with the battery, selecting one of the equivalent circuit models based on the determined operational mode, and calculating a state of charge of charge (SOC) of the battery using the selected equivalent circuit model. | 08-28-2014 |
20140257724 | TRACKING FADING BATTERY CAPACITY IN A PLUGGED-IN PORTABLE ELECTRONIC DEVICE - A system for tracking the capacity of a battery in a portable electronic device is described. While the portable electronic device remains plugged in to a power adapter, the system estimates the capacity of the battery by performing the following operations. The system measures a first open-circuit voltage for the battery while the battery rests at a first state of charge. Next, the system causes the battery to transition to a second state of charge. While the battery transitions to the second state of charge, the system integrates a current through the battery to determine a net change in charge for the battery. Next, the system measures a second open-circuit voltage for the battery while the battery rests at the second state of charge. Finally, the system estimates a capacity for the battery based on the first open-circuit voltage, the second open-circuit voltage and the net change in charge. This capacity measurement is repeated and the multiple results are fit to a line. The slope of fitted line is then used to estimate how the true battery capacity has faded since last measured using traditional methods that require the battery to be rested at a low state of charge. | 09-11-2014 |
20140257725 | METHOD OF DETERMINING THE RESIDUAL CAPACITY OF A BATTERY - The invention relates to a method of determining the residual capacity of an electrochemical cell for an electrical energy storage using a no-load voltage model of the cell which is parameterized so that the parameter represents the aging of the cell. Parameterizing the model is achieved from a series of measurements performed on the battery, comprising at least a voltage measurement, a temperature measurement and a current measurement of the cell. | 09-11-2014 |
20140257726 | APPARATUS AND METHOD FOR BATTERY STATE OF CHARGE ESTIMATION - An apparatus and method for battery state of charge (SOC) estimation can reduce the estimation error in the battery SOC. The apparatus includes a charge/discharge current detection unit, a terminal voltage detection unit, a first estimation unit that estimates a first SOC by integrating the charge/discharge current value, a second estimation unit that estimates an open circuit voltage value from the charge/discharge current value and the terminal voltage value and estimates a second SOC from the open circuit voltage value, a first difference calculation unit that calculates a SOC difference between the first SOC and the second SOC, an error estimation unit that estimates, based on the SOC difference, an error as a state quantity of an error model by using the error model, and a second difference calculation unit that calculates a SOC of the battery by subtracting the error from the first SOC. | 09-11-2014 |
20140278167 | Battery State-Of-Charge Estimation For Hybrid And Electric Vehicles Using Extended Kalman Filter Techniques - Adaptive estimation techniques to create a battery state estimator to estimate power capabilities of the battery pack in a vehicle. The estimator adaptively updates circuit model parameters used to calculate the voltage states of the ECM of a battery pack. The adaptive estimation techniques may also be used to calculate a solid-state diffusion voltage effects within the battery pack. The adaptive estimator is used to increase robustness of the calculation to sensor noise, modeling error, and battery pack degradation. | 09-18-2014 |
20140278168 | ELECTIVE REPLACEMENT INDICATION GENERATION - This disclosure describes techniques for generating an elective replacement indication (ERI) for an implantable medical device having a non-rechargeable power source. A signal may be sampled that is indicative of a characteristic of the power source. Measurement logic may be configured to obtain samples of a signal indicative of a characteristic of the power source. A control circuit may be configured to determine when a first sample of the signal having a first predetermined relationship to a first threshold is received, and to initiate issuance of an elective replacement indication if a predetermined period of time elapses between receipt of the first sample and receipt of a second sample of the signal having a second predetermined relationship to a second threshold. | 09-18-2014 |
20140278169 | APPARATUS FOR PREDICTING STATE OF HEALTH OF BATTERY PACK BY USING DISCRETE WAVELET TRANSFORM - A method of predicting a state of health (SOH) of a battery pack is provided. The method includes: obtaining at least one of charging voltage data or discharging voltage data for each of a plurality of selected cells of the battery pack; wavelet transforming the at least one of charging voltage data or discharging voltage data to obtain low frequency component voltage data and high frequency component voltage data; calculating respective standard deviations of at least two from among the at least one of charging voltage data or discharging voltage data, the low frequency component voltage data, and the high frequency component voltage data; and predicting the SOH of the battery pack based on the calculated standard deviations. | 09-18-2014 |
20140278170 | STATE OF CHARGE (SOC) DISPLAY FOR RECHARGEABLE BATTERY - An initial SoC curve may be defined that relates system state of charge (SoC) as a function of battery SoC. Endpoints that define the SoC curve may be updated. For example, each time a battery SoC is determined, the SoC curve may be updated. The SoC curve may then be evaluated to produce a system SoC that can be present to the user. | 09-18-2014 |
20140303914 | STATE OF CHARGE ESTIMATION DEVICE AND METHOD OF ESTIMATING STATE OF CHARGE - The state of charge (SOC) estimation device includes a memory and a controller component. The memory stores data on a first correlation between an elapsed time and an estimation error in SOC estimation. The controller component executes a first estimation process and a second estimation process. The first estimation process is for estimating a first SOC and a first estimation error of the electric storage device in a non-charge/discharge state based on a terminal voltage and the elapsed time. The second estimation process is for estimating a second SOC and a second estimation error of the electric storage device in a charge/discharge state based on an accumulated charge/discharge current. The controller component calculates a total error from the first estimation error and the second estimation error. The controller component estimates the first estimation error when the elapsed time becomes equal to or longer than a reference time. | 10-09-2014 |
20140303915 | APPARATUS AND METHOD FOR ESTIMATING STATE OF CHARGE OF BATTERY - Provided are battery SOC estimating apparatus and method. The battery SOC estimating apparatus according to the present invention includes a first SOC calculating unit which applies a predetermined parameter to calculate a first state of charge (SOC) of a battery; one or more second SOC calculating units which individually apply different parameters to calculate one or more second SOCs of the battery; and an optimal parameter extracting unit which confirms a second SOC which is the closest to an actual SOC of the battery from one or more second SOCs to extract a parameter which is applied to the second SOC which is the closest to the actual SOC as an optimal parameter, in which the first SOC calculating unit applies the optimal parameter to calculate a final SOC of the battery. | 10-09-2014 |
20140316728 | SYSTEM AND METHOD FOR SOC ESTIMATION OF A BATTERY - The present invention provides a SOC estimation method applied to a battery system comprising a battery pack. The SOC estimation method comprises the steps of: determining an initial SOC value; determining whether the battery pack is in a working status; measuring the voltage and current of the battery pack if the battery pack is in the working status; calculating a current SOC value by using an ampere-hour method based on the initial SOC value and the measured voltage and current; determining dynamic characteristic parameters of the battery pack; and optimizing the current SOC value by using extended Kalman filter (EKF) method and based on the dynamic characteristic parameters of the battery pack. | 10-23-2014 |
20140324370 | Battery State-of-Charge Aggregation Method - Embodiments of the disclosure may include a method of managing a state of charge of a battery having a plurality of battery cells. The method may include calculating an individual state of charge for each battery cell, calculating an average state of charge for the battery cells, defining a minimum and a maximum average state of charge threshold, and calculating an overall state of charge for the battery such that when the average state of charge is below the minimum threshold, the overall state of charge is calculated based on the state of charge of a subset of battery cells having the lowest state of charge, and when the average state of charge is above the maximum threshold, the overall state of charge is calculated based on the state of charge of a subset of battery cells having the highest state of charge. | 10-30-2014 |
20140336962 | Method and Apparatus for Estimating Remaining Operating Time - In accordance with an example embodiment of the present invention, an apparatus comprising a status detector configured to identify status of a device powered by at least one battery, an energy management circuitry configured to at least perform estimating a remaining battery energy at a first time instant and a second time instant, calculating an average power consumption based at least on the measured remaining battery energy for at least the first time instant and the second time instant, and estimating a remaining operating time for the identified status based at least on the calculated average power consumption, wherein a single status of the device is identified from the first time instant to the second time instant. | 11-13-2014 |
20140336963 | METHODS AND APPARATUS FOR COMMUNICATING AVAILABLE BATTERY POWER - Systems and methods of enabling a battery system to intelligently provide its current support capability include logic to determine current battery power status information. The current battery power status information may be compared with a set of programmed battery power status information to determine a match. There may be logic to indicate the current battery power status information based on the match. | 11-13-2014 |
20140336964 | METHOD FOR DETERMINING REMAINING LIFETIME - A method includes discharging an assembled battery ( | 11-13-2014 |
20140336965 | CHARGE/DISCHARGE ASSIST DEVICE - An electronic control unit of a charge/discharge assist device has a data input section, a departure/arrival time prediction map generation section, a travel distance prediction map generation section, a rule curve creation section, and a data output section. The input section inputs departure time information, arrival time information, and travel distance information. The prediction map generation section creates a map for providing a predicted departure time in future and a map for providing a predicted arrival time in future. The prediction map generation section creates a departure-time-zone-specific predicted travel distance map for predicting the longest travel distance in each departure time zone. On the basis of the predicted travel distance map, the creation section determines an electric energy required in each time zone and creates a rule curve. The output section creates a charge plan or a discharge plan by using the rule curve and outputs the plan. | 11-13-2014 |
20140343876 | ELECTRIC STORAGE SYSTEM - Each of the electric storage elements has a current interrupt device interrupting a current path within the electric storage element. The controller uses the voltage detected by the voltage sensor to calculate the estimated value of a current passing through the electric storage block having a plurality of electric storage elements connected in parallel. The controller uses the correspondence between a first ratio and a second ratio to determine whether or not the current interrupt device is in an interrupt state. The first ratio is the ratio between the estimated current value and the reference value of a current passing through the electric storage block. The second ratio is the ratio between the total number of the electric storage elements constituting the electric storage block and the total number of the current interrupt devices not in the interrupt state. | 11-20-2014 |
20140343877 | POWER SUPPLY UNIT, VEHICLE AND STORAGE BATTERY UNIT EQUIPPED WITH POWER SUPPLY UNIT, AND REMAINING CAPACITY DETECTING METHOD OF BATTERY - A power supply unit comprises a battery, current and voltage detecting portions, and a remaining capacity computing portion. The remaining capacity computing portion comprises a first computing portion computing a first open circuit terminal voltage based on current and voltage values from the current and voltage detecting portions, and computing a first remaining capacity based on the first open circuit terminal voltage, a second computing portion computing a second open circuit terminal voltage based on the current and voltage values, an ohmic resistance voltage drop and a polarization resistance voltage drop, and computing a second remaining capacity based on the second open circuit terminal voltage, a third computing portion calculating a third remaining capacity based on an integrated value by integrating the current, and a main computing portion computing a real remaining capacity of the battery based on the first and/or third remaining capacity, and the second remaining capacity. | 11-20-2014 |
20140350875 | RELAXATION MODEL IN REAL-TIME ESTIMATION OF STATE-OF-CHARGE IN LITHIUM POLYMER BATTERIES - Relaxation time constants give valuable information about a lithium polymer battery cell's state-of-charge. Moreover, determination of these time constants can be performed in real time by fitting exponential functions to transient voltage or current patterns. | 11-27-2014 |
20140350876 | Method and Devices for Making Available Information for the Purpose of Performing Maintenance and Servicing of a Battery - A method makes available information for the purpose of performing maintenance and servicing of a battery, which includes at least one battery module with an assigned module control device and a central control device, wherein at least one module control device has a non-volatile memory. The method comprises detecting and quantizing useful data of battery units, forming a histogram which has frequency values of the occurrence of specific values of the individual quantized useful data or values derived therefrom, transferring the histogram from the central control device to a module control device, and storing the histogram in the non-volatile memory of the module control device. Furthermore, a computer program and a battery management system are specified which are configured to execute the method, as well as a battery and a motor vehicle whose drive system is connected to a battery of this type. | 11-27-2014 |
20140350877 | BATTERY PARAMETERS, STATE OF CHARGE (SOC), AND STATE OF HEALTH (SOH) CO-ESTIMATION - Battery parameters, state of charge, and state of health co-estimation are disclosed. According to an aspect, a method includes determining a terminal current and a terminal voltage of a battery. The method also includes maintaining a battery model that defines a relationship between a parameter of the battery, the terminal current, and the terminal voltage. Further, the method includes determining the parameter of the battery based on the battery model and the acquired terminal current and the terminal voltage. | 11-27-2014 |
20140358459 | MODEL-BASED BATTERY MONITORING - Methods, systems, and devices for monitoring a battery are described herein. One method includes receiving a plurality of values, each value associated with a respective battery characteristic, and determining an internal state associated with the battery based, at least in part, on the plurality of values. | 12-04-2014 |
20140358460 | ELECTRIC VEHICLE AND METHOD FOR CONTROLLING SAME - The present invention relates to an electric vehicle and to a method for controlling same. The electric vehicle according to the present invention comprises: a battery for storing electrical energy; a cluster for calculating the final state of charge (SOC) of the battery and indicating the result of the calculation; a battery management system for transmitting raw data of the SOC of the battery to the cluster at a predetermined interval; and a motor control unit for measuring the power consumption of the motor at predetermined interval and transmitting the measured power consumption to the cluster. The cluster includes a cluster control unit for calculating the final SOC using the raw data of the SOC of the battery and the power consumption of the motor, and a cluster indication unit for indicating the final SOC. | 12-04-2014 |
20140365150 | METHOD AND DEVICE FOR DETERMINING A CHARGE STATE OF AN ELECTRIC ENERGY STORE - A method for determining a charge state of an electric energy store, having the following steps: measuring a voltage of the electric energy store on the basis of a charge quantity which is removed from or supplied to the electric energy store as a voltage characteristic curve and ascertaining a virtual open-circuit voltage characteristic curve from the measured voltage using at least one operating parameter of the electric energy store, ascertaining a first derivative and/or a second derivative of the virtual open-circuit voltage characteristic curve according to the charge quantity removed from or supplied to the electric energy store, detecting at least one characteristic of the first derivative and/or the second derivative of the virtual open-circuit voltage characteristic curve, and determining the charge state of the electric energy store using the detected at least one characteristic, is provided. | 12-11-2014 |
20140372053 | TECHNIQUES FOR ESTIMATING BATTERY PACK PARAMETERS - A method for a battery pack controller of an electrified vehicle, the battery pack controller including one or more processors, includes identifying N battery cells of a battery pack that includes M battery cells, the N battery cells being weakest battery cells of the battery pack, wherein N is an integer greater than zero and less than M. The method includes determining one or more first parameters for each of the N battery cells, each of the one or more first parameters indicating a parameter for a specific battery cell. The method includes estimating one or more second parameters for the battery pack based on the one or more first parameters for each of the N battery cells, each of the one or more second parameters indicating a parameter for the battery pack. The method also includes outputting the one or more second parameters for the battery pack. | 12-18-2014 |
20140372054 | DOUBLE-PULSE TECHNIQUE FOR ON-LINE DIAGNOSTICS OF ELECTROCHEMICAL SYSTEMS - A method for dynamic characterization of an electrochemical system (such as a lithium-ion battery) is provided, comprising exciting an electrochemical system with a plurality of double-pulse sequences, each comprising a constant-current discharge pulse, a constant-current charge pulse having the same pulse width and pulse amplitude, and a zero-current period between the pulses; and calculating an impulse response, using a recursive or matrix-based method, to dynamically characterize the electrochemical system. A constant state-of-charge is maintained in the electrochemical system. Therefore the signal-to-noise ratio is high due to the repetition of the driving sequence. This method may be employed for on-line determination of the impedance spectrum of an electrochemical system, since the cycling profile can be easily integrated into charge/discharge profiles. Batteries (and other devices) can be diagnosed at high speed and with high accuracy. The double-pulse sequence is robust for fairly noisy systems. | 12-18-2014 |
20140372055 | METHODS AND APPARATUS FOR SENSING THE INTERNAL TEMPERATURE OF AN ELECTROCHEMICAL DEVICE - The internal temperature of an electrochemical device may be probed without a thermocouple, infrared detector, or other auxiliary device to measure temperature. Some methods include exciting an electrochemical device with a driving profile; acquiring voltage and current data from the electrochemical device, in response to the driving profile; calculating an impulse response from the current and voltage data; calculating an impedance spectrum of the electrochemical device from the impulse response; calculating a state-of-charge of the electrochemical device; and then estimating internal temperature of the electrochemical device based on a temperature-impedance-state-of-charge relationship. The electrochemical device may be a battery, fuel cell, electrolytic cell, or capacitor, for example. The procedure is useful for on-line applications which benefit from real-time temperature sensing capabilities during operations. These methods may be readily implemented as part of a device management and safety system. | 12-18-2014 |
20140372056 | Method and Device for Determining a Parameter of a Model of a Technical Installation - Methods and devices for determining at least one parameter of a model of a technical installation are provided. In this case, the parameters are updated on the basis of measurements as a function of an observation matrix. The observation matrix is prescribed as a function of the model and being able, if appropriate, to depend on a time variable which can be measured. | 12-18-2014 |
20140379284 | SYSTEM AND METHOD FOR CALCULATING TOTAL AVAILABLE ENERGY FROM VEHICLE BATTERY - A system and method for calculating available energy of a battery is provided and the system includes a controller configured to receive State-Of-Charge (SOC) of the battery as an input and output an Open-Circuit Voltage (OCV) of the battery. In addition, a value of available energy is stored in a memory and the controller obtains a value of charged and discharged energy and a value of heat loss energy from an OCV of the battery, an output voltage of a battery system, and an output current of the battery system. The value of the obtained charged and discharged energy are added to the value of the available energy which has been previously stored and the value of the heat loss energy is subtracted to calculate a value of new available energy. | 12-25-2014 |
20140379285 | SYSTEMS AND METHODS FOR REMOTELY DETERMINING A BATTERY CHARACTERISTIC - Included are embodiments for remotely determining a battery characteristic. Some embodiments include searching for a first wireless signal that identifies the energy storage device and, in response to receiving the first wireless signal, determining a current charge level of the energy storage device. Some embodiments include receiving a second wireless signal from the energy storage device, determining from the second wireless signal, whether the current charge level of the energy storage device reaches a predetermined threshold, and in response to determining that the current charge level of the energy storage device reaches the predetermined threshold, sending, by the computing device, an alert indicating the current charge level. | 12-25-2014 |
20150019149 | Real-time power distribution method and system for lithium battery and redox flow battery energy storage systems hybrid energy storage power station - The invention provides a lithium battery and redox flow battery energy storage systems hybrid energy storage power station real-time power distribution method and system. The system comprises a communication module, a data storage and management module, a gross power coordination control module and a real-time power distribution module. The said method and system not only can complete the real-time distribution of each battery energy storage units in the battery energy storage station, but also the aims of effective control and distribution of the lithium-liquid flow cell combined energy storage power station and aims of effective control and distribution of the lithium-flow flow joint energy storage power station real-time power can be achieved. | 01-15-2015 |
20150025822 | BATTERY DC IMPEDANCE MEASUREMENT - The state of charge of a rechargeable battery is determined by calculating the DC impedance of the battery. The impedance is calculated by: performing a two different constant current discharges of the battery at a first and second C-rates, respectively; measuring the voltage and current during the interval of each constant current discharge and calculating the amount of charge extracted from the battery up to a point where the battery voltage drops to a threshold value; calculating the state of charge of the battery; and calculating the DC impedance of the battery as a function of the difference between the battery voltages and discharge currents for the two different discharges. | 01-22-2015 |
20150025823 | TEMPERATURE-COMPENSATED STATE OF CHARGE ESTIMATION FOR RECHARGEABLE BATTERIES - The remaining state of charge of a rechargeable battery is calculated by: measuring the instantaneous voltage, impedance and temperature of the battery, and then inputting the measured voltage, impedance and temperature values into an equation, wherein the equation yields a state of charge value that is a function of the said measured voltage, impedance and temperature values. | 01-22-2015 |
20150025824 | Method for Monitoring a Battery - A method is described for monitoring a battery, and a battery and a system for carrying out the method in connection with such a battery. A number of sensors are assigned to the battery, the sensors being connected serially to one another and to a control unit via a data line; at least one of the sensors putting in each case at least one data word on the data line. | 01-22-2015 |
20150025825 | BATTERY PACK AND METHOD FOR CALCULATING ELECTRIC ENERGY OF BATTERY PACK - A battery pack ( | 01-22-2015 |
20150032394 | POWER MANAGEMENT SYSTEM - A battery monitoring unit monitors at least one from among: (i) the attachment state of secondary battery pack; (ii) the low state of a battery voltage VBAT; and (iii) the state of whether it is possible or impossible to use the secondary battery. A battery measurement unit measures the battery voltage VBAT, a charge/discharge current IBAT, and a temperature T of the secondary battery pack, and converts the measured values into digital data. A charging circuit is configured to charge the secondary battery pack using DC voltage from an external power supply based on the state information detected by the battery monitoring unit and the information measured by the battery measurement unit. A coulomb counter measures the charge/discharge current IBAT at predetermined time intervals, and integrates the measurement value, thereby calculating the sum total of the charged/discharged amount. The battery management circuit is monolithically integrated on a single semiconductor substrate. | 01-29-2015 |
20150039255 | METHODOLOGY FOR CHARGING BATTERIES SAFELY - An apparatus and method for identifying a presence of a short circuit in a battery pack. A fault-detection apparatus for a charging system that rapidly charges a collection of interconnected lithium ion battery cells, the safety system includes a data-acquisition system for receiving a set of data parameters from the collection while the charging system is actively charging the collection; a monitoring system evaluating the set of data parameters to identify a set of anomalous conditions; and a controller comparing the set of anomalous conditions against a set of predetermined profiles indicative of an internal short in one or more cells of the collection, the controller establishing an internal-short state for the collection when the comparing has a predetermined relationship to the set of predetermined profiles. | 02-05-2015 |
20150046105 | VOLTAGE MODE FUEL GAUGE - In one embodiment, a circuit comprises a sensor providing a digital signal responsive to a battery voltage on a battery terminal of a battery. The sensor can be an analog-to-digital convertor. A processor is coupled to the sensor and is configured to calculate a state of charge of the battery based on the digital signal at a first time, the digital signal at a second time, and a stored battery profile of open circuit voltage as a function of state of charge at the second time. | 02-12-2015 |
20150046106 | APPARATUS, SYSTEM AND METHOD FOR A CLOUD BASED UNIVERSAL FLEET MONITORING SYSTEM - An enhanced system and method for monitoring operation of a plurality of data sensors allows monitoring of data from industrial batteries and/or Battery Data Sensors (BDSs), vehicles, charging systems and related equipment. One or more Data Collection Modules communicate wirelessly and receive data from each device sensor, store data in the Data Collector memory and asynchronously transmit the data through the Cloud and/or Internet to the Cloud Server, which stores and process all received raw data and stores configuration information for each uniquely identified monitored device. Users may interact with the monitoring system using smart Web-enabled devices, and may submit user configuration data via the Cloud Server and receive reports regarding operation of the monitoring system, individual sensors and monitored devices. | 02-12-2015 |
20150046107 | APPARATUS AND METHOD FOR ESTIMATING STATE OF CHARGE OF BATTERY - Provided are battery SOC estimating apparatus and method. The battery SOC estimating apparatus according to the present invention includes an input/output power pattern analyzing unit which analyzes an input/output power of a battery during a predetermined time to obtain an input/output power pattern of the battery; an application status determining unit which analyzes the input/output power pattern of the battery to determine a current application status of the battery; and an SOC calculating unit which calculates an SOC of the battery using a state of charge (SOC) estimation algorithm corresponding to the current application status of the battery. | 02-12-2015 |
20150046108 | DEVICE AND METHOD FOR ESTIMATING SECONDARY CELL STATUS - Provided is a device for estimating secondary cell status using multiple models. The device for estimating secondary cell status uses multiple models, model 1, model 2, and model 3, to estimate the status of respective secondary cells. An arithmetic unit compares the estimated voltage values obtained from model 1, model 2, and model 3 with measured voltage values, sets the model having the highest correlation as the optimal model, optimizes the parameters of such model, and estimates secondary cell status. | 02-12-2015 |
20150046109 | BATTERY SYSTEM MAINTENANCE MANAGEMENT SYSTEM AND METHOD - Proposed is a method for efficiently indicating the replacement timing of each battery module which is a constituent element of a battery system on the basis of operational results information of the battery system without lowering the operating ratio of the battery system. First, capacity-voltage profile data of the battery module according to manufacturing state and degradation state, capacity-voltage profile data at the time of shipping of the battery module, and most recent capacity-voltage profile data of the battery module are collated to estimate the degradation degree of the battery module of the battery system. Then, based on past charge/discharge results data of the battery module, a future use pattern is estimated. Thereafter, remaining operating life is computed based on the degradation degree, the use pattern of the battery module, and characteristics degradation data. Finally, based on the remaining operating computed for the life battery module, the replacement timing of the individual battery module is indicated. | 02-12-2015 |
20150046110 | APPARATUS OF ESTIMATING POWER OF SECONDARY BATTERY INCLUDING BLENDED CATHODE MATERIAL AND METHOD THEREOF - Disclosed are an apparatus and method for estimating the power of a secondary battery including a blended cathode material. The apparatus according to the present disclosure includes a sensor configured to measure a discharge current of a secondary battery comprising a cathode including a blended cathode material, and a control unit configured to estimate a state of charge of the secondary battery, determine a discharge voltage of the secondary battery using a first resistance predefined corresponding to the state of charge under a first condition in which a magnitude of the discharge current is smaller than a magnitude of a critical current and a second resistance predefined corresponding to the state of charge under a second condition in which the magnitude of the discharge current is larger than the magnitude of the critical current, and determine the power of the secondary battery from the determined discharge voltage and the measured discharge current. | 02-12-2015 |
20150051853 | APPARATUS FOR PARAMETER ESTIMATION - Provided is an apparatus for parameter estimation that, when performing parameter identification of a mathematical model expressing a target system as a differential equation, can reduce the estimation error of the parameters insofar as possible. The apparatus for parameter estimation includes a mathematical model expressing a target system as a differential equation, an input signal detection unit that detects an input signal to the target system, an output signal detection unit that detects an output signal from the target system, and a parameter identification unit that performs system identification by taking the input signal and the output signal as input and using these signals to identify parameters used in a transfer function of the mathematical model. The parameter identification unit performs, simultaneously with the system identification, continuous-time system identification of initial values of the transfer function based on the input signal and the output signal. | 02-19-2015 |
20150051854 | APPARATUS AND METHOD FOR ESTIMATING PARAMETER OF SECONDARY BATTERY - Disclosed is an apparatus and method for estimating a parameter of a secondary battery. The apparatus according to the present disclosure includes a sensor means configured to measure a plurality of current-voltage data while a charging current decreases when a secondary battery is charged in such a pattern that the charging current increases to a peak value and then decreases, and a control means configured to receive an input of the plurality of current-voltage data from the sensor means, calculate a linear approximation equation representing a correlation between a current and a voltage from the plurality of current-voltage data, and estimate a Y intercept of the linear approximation equation as an open-circuit voltage of the secondary battery. | 02-19-2015 |
20150051855 | APPARATUS AND METHOD FOR ESTIMATING POWER OF SECONDARY BATTERY COMPRISING BLENDED CATHODE MATERIAL - Disclosed is an apparatus and method for estimating a power of a secondary battery comprising a blended cathode material. The apparatus according to the present invention estimates a power of a secondary battery comprising a blended cathode material in which at least a first cathode material and a second cathode material are blended, the apparatus comprising a discharging means for discharging the secondary battery under conditions of a plurality of discharge rates (c-rate) different from each other, a sensor means for measuring a plurality of discharge termination voltages (V | 02-19-2015 |
20150057957 | DEGRADATION ESTIMATION METHOD FOR HIGH VOLTAGE BATTERY - A degradation estimation method system of a high voltage battery is provided that detect degradation of a battery. The degradation estimation method includes obtaining, by a controller, information about an input voltage, an input current and an external temperature of a slow charger. The controller is configured to calculate an output power used for charging the battery, based on an input power calculated based on the input voltage and the input current. In addition, the method includes calculating, by the controller, a mean charging current based on the output power and the battery charging voltage and calculating a battery degradation degree based on the mean charging current. | 02-26-2015 |
20150066405 | PARAMETER AND STATE LIMITING IN MODEL BASED BATTERY CONTROL - A method of determining battery power capability may include: determining a circuit model for a battery, including a first resistance (r | 03-05-2015 |
20150066406 | ON-BOARD STATE OF HEALTH MONITORING OF BATTERIES USING INCREMENTAL CAPACITY ANALYSIS - A method is provided for determining capacity of a battery. The method includes: defining a model for a battery, where the model relates terminal voltage of the battery to charged capacity of the battery; taking a plurality of voltage measures of the battery, where the voltage measures are taken through a range of states of charge and the range excludes the battery being fully charged and fully discharged; determining the parameters of the model by fitting the plurality of voltage measures to the model; determining an incremental capacity curve for the battery by taking derivative of the model; and quantifying a peak of the incremental capacity curve to thereby determine a capacity of the battery. | 03-05-2015 |
20150066407 | APPARATUS AND METHOD FOR ESTIMATING PARAMETER OF SECONDARY BATTERY - Disclosed is an apparatus and method for estimating a parameter of a secondary battery. The apparatus includes a sensor configured to measure an open circuit voltage (OCV | 03-05-2015 |
20150081237 | DATA DRIVEN/PHYSICAL HYBRID MODEL FOR SOC DETERMINATION IN LITHIUM BATTERIES - A hybrid model to determine state-of-charge for lithium batteries includes both a physical model and an empirical or data-driven model. The physical model is an electrochemical model, based on the battery materials properties and structure and describes dynamic electrochemical reactions. The empirical model uses coulomb counting and a relaxation filter, plus a Kalman filter for adaptive compensation of the system parameters. In some SOC regimes, one model is strongly favored over the other. In some SOC regions, a weighted combination of the two models is used. | 03-19-2015 |
20150088443 | METHOD OF DETERMINING THE STATE OF CHARGE OF A BATTERY OF AN ELECTRONIC APPLIANCE - A state of charge of a battery is estimated in several iterations, each iteration including: acquiring a measurement of intensity of current supplied by the battery, acquiring a measurement of voltage supplied by the battery, estimating a first state of charge of the battery based on a first estimated state of charge obtained upon a previous iteration and on the current intensity measurement, estimating a value of intensity of current supplied by the battery based on the voltage measurement and on a state of charge of the battery obtained upon the previous iteration, and calculating a corrected state of charge by adding to the first estimated state of charge a corrective term obtained by the product of a first correction gain multiplied by a factor representative of a difference between the estimated and measured current intensities. | 03-26-2015 |
20150094970 | BATTERY CELL ASSEMBLY - A battery cell assembly having a battery cell and a thin profile sensor is provided. The battery cell has a housing and first and second electrical terminals. The thin profile sensor has a flexible plastic sheet, and a microprocessor, a sensing circuit, and a heat generating circuit coupled to the flexible plastic sheet. The flexible plastic sheet is coupled to the battery cell. The microprocessor determines a first voltage value representing an open circuit voltage, and a second voltage value of the battery cell when the battery cell is supplying electrical current through the heat generating circuit. The microprocessor determines a current value when the battery cell is supplying the electrical current through the heat generating circuit, and determines an internal resistance value based on the first voltage value, the second voltage value, and the current value. | 04-02-2015 |
20150094971 | Method for Determining a Maximum Available Constant Current of a Battery, Arrangement for Carrying Out said Method, Battery Combined with said Type of Arrangement and Motor Vehicle Comprising said Type of Battery - A method for determining a maximum available first constant current of a battery over a first prediction period includes determining a maximum available second constant current for a second prediction period. The second prediction period occurs after the first prediction period. The method can further include limiting a first difference between the maximum available first constant current and the maximum available second constant current to one of less than or equal to a prescribed absolute value. The method can further include determining a maximum available first constant power of the battery over the first prediction period. | 04-02-2015 |
20150094972 | Current-based cell modeling - An arrangement provides simulation of important battery factors such as state of charge or state of health, and the estimates are provided to the human user in ways that permit the human user to make better use of the battery, for example in an electric car. The arrangement is made up in part of nodes, each individually simulated, and at least some of the nodes communicate with each other by means of values which within the domain of the simulator are understood as currents but which may have real-world significance for some value that is not a current at all. The currents are passed on a (simulated) analog bus. Some lines on the analog bus, while understood as “currents” in the domain of the simulator, are actually values that merely pass messages between modeling elements, the “current” values not necessarily representing any real-life measurable such as the aforementioned temperature value. | 04-02-2015 |
20150100259 | SYSTEM AND CORRESPONDING METHOD FOR ESTIMATING THE CHARGE STATUS OF A BATTERY - A system and method estimates the state of charge of a battery comprising at least two modules each provided with at least one cell. A sensor senses a series current flowing through all cells of the modules connected in series. A switching device selectively disconnects one of the modules, the other modules remaining connected in series. A calculator calculates the state of charge of the cells through which the series current flows from the integration of the series current and calculates the state of charge of each of the cells of the disconnected module from an open circuit voltage thereof. | 04-09-2015 |
20150100260 | APPARATUS AND METHOD FOR ESTIMATING SOC OF SECONDARY BATTERY INCLUDING BLENDED CATHODE MATERIAL - Disclosed is an apparatus for estimating a state of charge (SOC) of a secondary battery which includes (i) a cathode comprising a blended cathode material having a first cathode material and a second cathode material, wherein the first and second cathode materials have different operating voltage ranges; (ii) an anode comprising an anode material; and (iii) a separator for separating the cathode from the anode. The apparatus includes a sensor configured to measure a dynamic voltage of the secondary battery during charging of the secondary battery, and a control unit configured to identify a dynamic voltage profile of the secondary battery as a transition region voltage pattern, calculate a parameter of the transition region voltage pattern, and estimate a SOC of the secondary battery from the calculated parameter by using a predetermined relationship between the parameter and the SOC. | 04-09-2015 |
20150100261 | Method and Terminal for Displaying Battery Power - A method and a related terminal for displaying battery power to improve accuracy of displaying battery power. The method includes acquiring a power increase of a battery according to a preset time interval when the battery enters a charging state, where the battery has completed discharging before entering the charging state, acquiring power stored in the battery and an open circuit voltage OCV of the battery at a time when the acquired power increase of the battery reaches a preset threshold, generating an Open Circuit Voltage-State Of Capacity (OCV-SOC) curve according to the acquired power stored in the battery and the acquired OCV when the battery completes charging, and displaying the battery power according to the generated OCV-SOC curve. | 04-09-2015 |
20150106044 | ESTIMATING OF THE STATE OF CHARGE OF A BATTERY - A method for estimating a state of charge of a battery including plural cells connected in series, including: determination, at a given time, of a minimum cell voltage and of a maximum cell voltage from among the cell voltages, and calculation of a physical quantity analytically depending on the minimum and maximum cell voltages according to an equation including weighting elements ensuring the weight associated with the maximum cell voltage increases when the state of charge of the associated cell increases, and the weight associated with the minimum cell voltage increases when the state of charge of the associated cell decreases. | 04-16-2015 |
20150112619 | BATTERY STATUS ESTIMATING DEVICE | 04-23-2015 |
20150112620 | METHOD AND DEVICE FOR TESTING ELECTRICAL ENERGY STORING SYSTEMS FOR DRIVING VEHICLES - A method for testing electrical energy storage systems for driving vehicles provides that the load current of the energy storage system traces by means of a control loop, if possible without delay, a reference current that varies over time according to predetermined test cycles. The control loop is created by means of a model-based controller design method in which a model of the impedance of the energy storage system is integrated in the model of the controlled system. | 04-23-2015 |
20150120225 | APPARATUS AND METHOD FOR DETERMINING DEGRADATION OF HIGH-VOLTAGE VEHICLE BATTERY - Provided are an apparatus and method for determining degradation of a high-voltage vehicle battery, and the apparatus for determining degradation of a high-voltage vehicle battery is configured to measure a battery state of health (SOH) according to a preset estimation calculation, thereby minimizing a battery degradation estimation error. According to the present invention, it is possible to calculate a capacity of a battery only using a current value and a state of charge (SOC) change value to estimate an SOH of the battery, thereby simplifying an algorithm for the estimation. In particular, it is also advantageously possible to estimate a battery SOH through a first estimation algorithm, compare the estimated battery SOH with a threshold value, determine whether to perform re-estimation, and if the re-estimation is determined, re-estimate the battery SOH through a second estimation algorithm, using a least mean square method, thereby minimizing an error in a battery SOH estimation value. | 04-30-2015 |
20150120226 | BATTERY DEGRADATION MONITORING SYSTEM - In a battery degradation monitoring system provided with a battery monitoring unit including a temperature sensor for detecting the ambient temperature of a battery mounted on a vehicle and a clock function unit to compute the state of charge and the degradation rate of the battery as a whole by inputting the voltages and temperatures of a plurality of battery modules of the battery from cell monitoring units when an ignition switch of the vehicle is on, the battery monitoring unit is further actuated by the clock function unit each time a predetermined period of time elapses when the ignition switch of the vehicle is off to integrate a degradation function formula with respect to the ambient temperature detected by the temperature sensor and compute the degradation rate of the battery when the ignition switch is off. | 04-30-2015 |
20150127279 | METHOD FOR SAFELY AND ECONOMICALLY OPERATING AN ELECTROLYSER - A method for determining a safe and economic voltage operating range dependent on current density and/or a specific energy consumption operating range of a cell element of an electrolyser. A method for improving voltage results and/or specific energy consumption results, in which the voltage operating range and/or specific energy consumption operating range is determined depending on an operating parameter associated with the cell element. | 05-07-2015 |
20150127280 | BATTERY'S STATE OF CHARGE ESTIMATION APPARATUS - A battery's state of charge estimation apparatus will be provided. | 05-07-2015 |
20150127281 | BATTERY CHARACTERISTICS LEARNING APPARATUS - A battery characteristics learning apparatus is provided for calculating learning values of circuit constants of an equivalent circuit of a rechargeable battery. The apparatus includes: (1) means for acquiring values of terminal voltage of the battery sensed by voltage-sensing means and values of current of the battery sensed by current-sensing means and storing the acquired values in time series; (2) means for determining, based on the acquired values of the current, whether there has occurred a predetermined change in the current; and (3) means for calculating, when it is determined that the predetermined change has occurred, the learning values of the circuit constants based on those values of the terminal voltage and the current which are acquired at sampling time points or during sampling periods, each of the sampling time points and the sampling periods being set according to a corresponding one of time constants defined by the circuit constants. | 05-07-2015 |
20150127282 | BATTERY TESTER WITH HIGH PRECISION - The battery tester has a casing having an input device and two detecting wires, a microprocessor, a loading unit and a battery power status detector. The microprocessor builds a strategic decision process therein to determine a discharge time of a battery according to an output current, a preset load having 1/N CCA (Cold Cranking Amps) and a preset loading time inputted from the input device. Therefore, the battery tester can detect the health of batteries with different capacities and provides accurate detecting results. | 05-07-2015 |
20150134282 | BATTERY RESIDUAL CAPACITANCE CALCULATION DEVICE AND BATTERY RESIDUAL CAPACITANCE CALCULATION METHOD - A residual capacity calculation apparatus for a battery includes: a current detection device to detect a charge/discharge current of the battery; a voltage detection device to detect a terminal voltage of the battery; a first residual capacity calculation unit to calculate a first residual capacity based on an integrated value of the charge/discharge current of the battery; a second residual capacity calculation unit to calculate a second residual capacity based on an open circuit voltage of the battery; a blend rate setting unit to determine a blend rate of the second residual capacity based on a deviation between the first residual capacity and the second residual capacity; and a third residual capacity calculation unit to calculate a post-combination residual capacity by subjecting the first residual capacity and the second residual capacity to weighted combination with use of the blend rate, in which the blend rate setting unit is configured to increase the blend rate as the deviation between the first residual capacity and the second residual capacity increases. | 05-14-2015 |
20150134283 | BATTERY SYSTEM AND METHOD OF DETERMINING POLARIZATION OF SECONDARY BATTERY - A concentration distribution in an active material of a battery unit is calculated by using a diffusion equation, and a first polarization elimination time taken for the concentration distribution in the active material to fall within an allowable range is calculated assuming that charge and discharge of the battery unit is not performed. A concentration distribution in an electrolyte of the battery unit is calculated by using a diffusion equation, and a second polarization elimination time taken for the concentration distribution in the electrolyte to fall within an allowable range is calculated assuming that the charge and the discharge of the battery unit is not performed. It is determined that polarization of the battery unit is eliminated when a time for which the charge and the discharge of the battery unit is not performed is longer than the longer one of the first polarization elimination time and the second polarization elimination time. | 05-14-2015 |
20150142351 | System and Method of Battery Life Estimation - A device which includes a plurality of substantially identical batteries coupled via switching circuits to a power bus. Control circuits coupled to the batteries and the switching circuits to provide electrical energy to the bus from each of the batteries during a sequence of predetermined time intervals wherein one of the batteries provides electrical energy to the bus during a greater percentage of each tie intervals than the others of the plurality. Estimating remaining battery life of the others of the plurality in response to sensing that the one battery is substantial discharged. | 05-21-2015 |
20150142352 | METHOD FOR DETERMINING A STATE OF ENERGY ON THE BASIS OF DATA ORIGINATING FROM THE PROCESSING METHOD - Method for determining the state of energy of an electrochemical accumulator, characterized in that it comprises the following steps:
| 05-21-2015 |
20150149101 | Multiturn Rotary Encoders - A multiturn rotary encoder includes: a measuring standard having at least one graduation track, with whose aid the angular position of a shaft is absolutely encoded; a first scanner, with which the at least one graduation track is able to be scanned in order to generate first position signals; a first single-turn evaluation unit for forming a first single-turn code word from the first position signals; a first multiturn evaluation unit for forming a first multiturn code word from the first position signals; a second scanner, with which the at least one graduation track is able to be scanned in order to generate second position signals; a second single-turn evaluation unit for forming a second single-turn code word from the second position signals; a second multiturn evaluation unit for forming a second multiturn code word from the second position signals; and a battery, with which at least the components necessary for forming the multiturn code words are able to be supplied with energy upon loss of a main power supply. A first battery-monitoring unit is provided, with which the functioning of the battery is able to be monitored and indicated by at least one battery-status signal. | 05-28-2015 |
20150301114 | Devices and Methods for Power Transmission Level Indication - Devices and methods are disclosed which relate to a wireless communications device comprising a wireless power transmission detector and a wireless power transmission indicator for displaying to a user the current level of wireless power transmission. A voltmeter and ammeter take readings from the wireless transceiver circuit while the wireless communications device is on. A power logic stored on a memory within the wireless communications device converts the readings into a wireless power transmission level. The wireless power transmission level is output to an indicator on the wireless communications device where a user can view it. Exemplary embodiments include a true battery life indicator on the wireless communications device. The true battery life indicator gives an amount of time a battery powering the wireless communications device will last at the current wireless power transmission level. | 10-22-2015 |
20150301116 | STATE OF CHARGE ESTIMATOR AND METHODS OF MAKING AND USING THE SAME - A number of variations include a method, which may include using at least a segment of voltage-based Battery State Estimation data, and using real-time linear regression, which may be a method of estimating future behavior of a system based on current and previous data points, to provide a robust and fast-adapting impedance response approximator. Linear regression may be performed by forming an RC circuit which is “equivalent” to electrochemical impedance spectroscopy data and processing the runtime values of that RC circuit using any number of known real-time linear regression algorithms including, but not limited, to a weighted recursive least squares (WRLS), Kalman filter or other means. | 10-22-2015 |
20150301117 | PARAMETER ESTIMATING DEVICE, PARAMETER ESTIMATING METHOD, ELECTRICITY STORAGE SYSTEM, AND PROGRAM - A parameter estimating device includes a state quantity measurement unit | 10-22-2015 |
20150301118 | POST-DETERIORATION PERFORMANCE ESTIMATING APPARATUS AND POST-DETERIORATION PERFORMANCE ESTIMATING METHOD FOR ENERGY STORAGE DEVICE, AND ENERGY STORAGE SYSTEM - A post-deterioration performance estimating apparatus estimates a post-deterioration performance value indicating performance of an energy storage device at a predetermined deterioration point, wherein discharge capacity of the energy storage device discharging at a predetermined first current is referred to as energy storage capacity, discharge capacity of the energy storage device discharging at a second current of a current value smaller than that of the first current is referred to as small current discharge capacity, a relational expression on relation among initial capacity of the energy storage device, a first capacity decreased amount obtained by subtracting the small current discharge capacity from the initial capacity, a second capacity decreased amount obtained by subtracting the energy storage capacity from the small current discharge capacity, and a cumulative operating period as a cumulative value of operating periods of the energy storage device is referred to as a first relational expression, and the post-deterioration performance estimating apparatus includes a post-deterioration performance estimator configured to estimate the post-deterioration performance value at the deterioration point in accordance with the first relational expression and the cumulative operating period at the deterioration point. | 10-22-2015 |
20150301119 | BATTERY SENSOR FOR VEHICLE AND METHOD FOR DETERMINING SEASON USING BATTERY SENSOR FOR VEHICLE - A season is determined by using a battery sensor for a vehicle, and as a result, a performance of a battery is predicted in advance to improve a monitoring performance of the battery sensor for the vehicle. | 10-22-2015 |
20150301122 | METHOD AND APPARATUS FOR CORRECTING ERROR OCCURRING IN ESTIMATION OF BATTERY LIFE - An apparatus and method for correcting an error occurring in estimation of a life of a battery. Either one or both of usage information and battery environment information are collected, and a weight corresponding to the either one or both of the battery usage information and the battery environment information may be calculated from a battery degradation model. The calculated weight may be reflected on a state of health (SOH), and the SOH may be corrected. | 10-22-2015 |
20150316618 | METHODS AND APPARATUS FOR BATTERY POWER AND ENERGY AVAILABILITY PREDICTION - This application relates to methods and apparatus for predicting power and energy availability of a battery. The prediction is made based on a given amount of time, which represents a period in which the battery may be required to operate. Additionally, a learning cycle is incorporated to update a battery model of the battery with certain parameters. The battery model is updated by introducing a time-varying current to the battery and analyzing the voltage response of the battery. A model-based predictive algorithm is used in combination with the battery model to predict battery output parameters based on variables derived from the learning cycle and additional inputs supplied to the model-based predictive algorithm. After one or more iterations, or using a simplified model-based equation, the model-based predictive algorithm can provide an accurate prediction for the maximum current that the battery can supply for a predetermined period of time. | 11-05-2015 |
20150323611 | LIFE PREDICTION APPARATUS FOR ELECTRICAL STORAGE DEVICE AND LIFE PREDICTION METHOD FOR ELECTRICAL STORAGE DEVICE - A life prediction apparatus for an electrical storage device, which has a life predictor, includes: an operation controller for life prediction that controls operation of the electrical storage device; a data collector that collects measurement data with respect to a plurality of operation conditions and calculates and successively accumulates evaluation characteristics; a data analyzer that creates a regression formula representing a relationship between the evaluation characteristic and an operation time by curve fitting, with an appropriate approximation function, the accumulated evaluation characteristic data; and a life prediction formula creator that creates a life prediction formula for calculating a predicted value of the evaluation characteristic under random operation conditions on the basis of the regression formula. | 11-12-2015 |
20150331055 | VEHICLE CONTROL APPARATUS - A vehicle control apparatus is provided, which includes a sensor; and a processing device that calculates a SOC, determines whether the calculation value of the SOC is greater than a predetermined threshold, and permits execution of control that involves a discharge of a battery if the SOC is greater than the predetermined threshold. When the processing device detects a decrease in accuracy of the SOC, the processing device determines whether the calculation value of the SOC at a time of detection of the decrease is greater than a predetermined value, and if yes, corrects the SOC, etc., to continue the determination with the predetermined threshold, such that the execution of the control is permitted more difficulty, within a range in which the execution of the control can be permitted, with respect to a state before the detection. | 11-19-2015 |
20150331056 | BATTERY CHARGE METER TESTING - A circuit includes a first analog to digital converter configured to convert an analog voltage sample of a rechargeable power source into a digital voltage value, a second analog to digital converter configured to convert an analog current sample of the rechargeable power source into a digital current value, a charge state controller configured to determine a charge state of the rechargeable power source based on the digital voltage value and the digital current value, and a communication interface configured to output a computer-readable indication of the charge state. The charge state controller is further configured to receive pregenerated voltage values and pregenerated current values, and determine a simulated charge state of the rechargeable power source based on the pregenerated voltage values and the pregenerated current values. The communication interface is further configured to output a computer-readable indication of the simulated charge state. | 11-19-2015 |
20150338467 | Method and Device for Measuring State of Charge of Mobile Terminal - The present invention relates to the field of battery measurement for a mobile terminal, and provides a method and a device for measuring state of charge (SoC) of a mobile terminal The method comprises: measuring, after the mobile terminal enters a sleep/idle mode, battery parameters of the mobile terminal in accordance with a predetermined measurement period; filtering, when the mobile terminal exits the sleep/idle mode, the measured battery parameters and storing the filtered battery parameters; and acquiring state of charge of the mobile terminal in accordance with the stored battery parameters. According to the technical solution of the present invention, the battery power of the mobile terminal can be measured and the process of the battery power consumption can be calculated accurately. | 11-26-2015 |
20150346283 | APPARATUS AND METHOD FOR CALCULATING PRECHARGE RESISTANCE OF BATTERY PACK - Disclosed are an apparatus and a method for calculating a precharge resistance of a battery pack. The apparatus for calculating a precharge resistance of a battery pack according to the present invention includes: a load resistor configured to be connected between a battery pack and a precharge resistor in series; a voltage measuring unit configured to measure a no-load voltage in a no-load state in which the load resistor is not installed in the battery pack or a load voltage applied to the load resistor when the load resistor has a predetermined current value in a load state in which the load resistor is installed in the battery pack; and a precharge resistance calculating unit configured to calculate the precharge resistor of the battery pack using the no-load voltage of the battery pack, the load voltage, and the predetermined current value. | 12-03-2015 |
20150355282 | METHOD OF ESTIMATING REMAINING BATTERY ENERGY - A method of estimating remaining energy of a battery Includes calculating a no-load energy of the battery. An estimated energy is calculated by reflecting predicted energy consumption due to an internal resistance and polarization into the calculated no-load energy. Remaining energy is calculated by calculating a correction value proportional to a difference between an estimated terminal voltage and a currently-measured terminal voltage and reflecting the correction value into the estimated energy. | 12-10-2015 |
20150355283 | Method and System for Estimating Battery Model Parameters to Update Battery Models Used for Controls - A powertrain having a traction battery is operated according to performance variables of the battery based on state variables of a reduced-order electrochemical model of the battery. The state variables are estimated by an estimator based on the battery model. A parameter of the battery model characterizing dynamics of the state variables with respect to battery operating conditions is updated by the estimator based on the battery model. | 12-10-2015 |
20150355286 | SYSTEM FOR ESTIMATING FAILURE IN CELL MODULE - In failure estimating system for a battery module, failure estimating device includes: charge state calculating unit for calculating the charge state of battery module; ΔSOC calculating unit for calculating ΔSOC as the amount of variation of the charge state from the initial charge state of battery module; ΔV integrated value calculating unit for calculating ΔV as the difference between a maximum inter-terminal voltage value and a minimum inter-terminal voltage value among a plurality of battery blocks and calculating a ΔV integrated value by sequentially integrating the calculated ΔV; and number-of-failed-cells estimating unit for estimating, with reference to association file, the number of failed cells that corresponds to the calculated ΔSOC and ΔV integrated value. Association file is stored in storage unit, and associates the relationship between ΔSOC and ΔV integrated value with the number of failed cells. | 12-10-2015 |
20150355288 | SECONDARY BATTERY DEGRADATION DETERMINATION METHOD AND SECONDARY BATTERY DEGRADATION DETERMINATION DEVICE - Provided are a secondary battery degradation determination method and a secondary battery degradation determination device which can detect degradation of a secondary battery in advance even before an engine starts. When it is determined in Step S | 12-10-2015 |
20150362558 | ASSESSMENT OF THE ENERGY THAT CAN BE EXTRACTED FROM A MOTOR VEHICLE BATTERY - A method for assessing a quantity of energy that can be extracted from a motor vehicle battery including: receiving an initial temperature value and an initial battery charge status value, corresponding to an initial point in time; estimating at least one subsequent temperature value on the basis of the initial temperature value received and the initial charge status value received; determining an estimated value of the quantity of energy that can be extracted from the battery on the basis of the at least one subsequent temperature value and the initial battery charge status value. | 12-17-2015 |
20150362559 | Method for Determining a Control Observer for the SoC - In order to create a control observer for any battery type in a structured and at least partially automated manner, first, a nonlinear model of the battery, in form of a local model network including a number of local, linear, time-invariant, and dynamic models, which each have validity in specific ranges of the input variables, is determined from the measuring data of a previously ascertained, optimized experimental design via a data-based modeling method. For each local model (LM | 12-17-2015 |
20150362561 | BATTERY STATE OF HEALTH ESTIMATION USING CHARGING RESISTANCE EQUIVALENT - A number of illustrative variations may include a method of estimating battery health including using a charging resistance equivalent. | 12-17-2015 |
20150369868 | ESTIMATING STATE OF CHARGE (SOC) AND UNCERTAINTY FROM RELAXING VOLTAGE MEASUREMENTS IN A BATTERY - Some embodiments of the present invention provide a system that estimates a state of charge for a battery. During operation, while the battery is relaxing toward a fully rested state, the system determines if a modified state of charge of the battery is substantially consistent with a predetermined decay pattern. If so, the system estimates the state of charge of the battery as a value of the modified state of charge determined at the time when the consistency is observed. Otherwise, the system continues monitoring the modified state of charge of the battery. In one embodiment, the predetermined decay pattern is a single exponential decay. After estimating the state of charge of the battery, the system may determine an uncertainty of the estimated state of charge. More specifically, the system can estimate the uncertainty as substantially equal to a fraction of the difference between the value of the modified state of charge and the value of the voltage-based state of charge at the time when the consistency is observed. | 12-24-2015 |
20150369872 | Distance to Empty Prediction with Long Term Distance Compensation - A vehicle is provided which may include an energy conversion device, an energy source to supply power to the energy conversion device, and at least one controller. The controller may be programmed to, in response to detecting one or more noise factors expected to affect propulsive energy consumption of the energy conversion device from vehicle start until the energy source is empty, output a distance to empty (DTE) based on a change in energy consumption rate due to the one or more noise factors and predicted to last at least until the energy source is empty. The controller may further include a DTE prediction architecture including a feed-forward energy consumption estimator, an energy consumption learning filter, and a DTE calculator. A method for estimating distance to empty for a vehicle is also provided which may output a DTE modified by a predicted change in energy consumption rate selected to include a compensation factor corresponding to and correcting for a noise factor. | 12-24-2015 |
20150369873 | BATTERY CONTROLLER - Provided is a battery control device which can verify a probability of a state of charge or a state of health of a battery. A battery controller according to the invention calculates a measurement parameter of the battery using the state of charge or the state of health of the battery, and the probability of the state of charge or the state of health is diagnosed by comparing the measurement results (see FIGS. | 12-24-2015 |
20150369874 | METHOD AND APPARATUS FOR LEARNING AND ESTIMATING BATTERY STATE INFORMATION - A method of estimating battery state information includes collecting battery information; partitioning the collected battery information into interval information in a predetermined range; accumulating the interval information; and estimating the battery state information based on the accumulated interval information and learning information determined in advance. A method of learning battery state information includes collecting battery information; partitioning the collected battery information into interval information in a predetermined range; accumulating the interval information; and determining learning information based on the accumulated interval information and reference information of a battery, the learning information being used to estimate the battery state information. | 12-24-2015 |
20150369875 | BATTERY STATE ESTIMATING DEVICE - Battery state estimating device includes: measured value acquiring unit for acquiring a measured value in a predetermined measurement period of the time-varying battery state of battery after charge or discharge; model function determining unit for determining, based on the measured value, the function forms of a plurality of model functions for modelling the battery state; multiple prediction unit for predicting the variation of the battery state using each of the plurality of model functions whose function forms are determined; and estimating unit for calculating an estimated stable value of the battery state on the basis of the result by multiple prediction unit. | 12-24-2015 |
20150372317 | PRIMARY ALKALINE BATTERY WITH INTEGRATED IN-CELL RESISTANCES - The invention is directed toward a primary AA alkaline battery. The primary AA alkaline battery includes an anode; a cathode; an electrolyte; and a separator between the anode and the cathode. The anode includes an electrochemically active anode material. The cathode includes an electrochemically active cathode material. The electrolyte includes potassium hydroxide. The primary AA alkaline battery has an integrated in-cell ionic resistance (R | 12-24-2015 |
20150377972 | METHOD FOR DETERMINING A STATE OF CHARGE AND REMAINING OPERATION LIFE OF A BATTERY - Determining a state of charge (SOC) of a rechargeable battery includes using a first process to determine a first value for the SOC of the battery and using a second process to determine a second value for the SOC of the battery and deriving the SOC as a weighted average of the first value for the SOC and the second value for the SOC. During a charging cycle of the battery an input charge of the battery is determined from an input current flowing into the battery and a charging time. During a discharging cycle an output charge of the battery is determined from an output current flowing out of the battery, a discharging time and an actual capacity of the battery is the sum of the input charge over charging cycles minus the sum of the output charge over discharging cycles. | 12-31-2015 |
20150377974 | BATTERY STATE ESTIMATION METHOD AND SYSTEM USING DUAL EXTENDED KALMAN FILTER, AND RECORDING MEDIUM FOR PERFORMING THE METHOD - Provided are a battery state estimation method and system and a recording medium for performing the method. The battery state estimation is provided by applying an ARX model and a dual extended Kalman filter. A battery state estimation system estimates a parameter of a battery model using an ARX model and estimates a battery state by applying the estimated parameter of the battery model to a dual extended Kalman filter including a state filter used to estimate a state of charge (SOC) and a weight filter used to estimate a state of health (SOH) of the battery. | 12-31-2015 |
20150377976 | METHOD AND CIRCUITRY TO ADAPTIVELY CHARGE A BATTERY/CELL USING THE STATE OF HEALTH THEREOF - The present inventions, in one aspect, are directed to techniques and/or circuitry to determining data which is representative of the state of health, or a change therein, of the battery using the data which is representative of (i) the relaxation time of the battery and/or (ii) the overpotential of the battery. In another aspect the present inventions are directed to techniques and/or circuitry to adapt one or more characteristics of a charge signal using data which is representative of the state of health, or a change therein, of the battery. In yet another aspect the present inventions are directed to techniques and/or circuitry to determine a state of charge of the battery using data which is representative of the state of health, or a change therein, of the battery. | 12-31-2015 |
20150377978 | SECONDARY BATTERY STATE DETECTING DEVICE AND SECONDARY BATTERY STATE DETECTING METHOD - To provide a secondary battery state detecting device that decreases the deterioration in capacity of the secondary battery and is low in arithmetic cost. | 12-31-2015 |
20160003912 | SECONDARY BATTERY STATE DETECTING DEVICE AND SECONDARY BATTERY STATE DETECTING METHOD - [Object] To detect states of a plurality of secondary batteries whose kinds are different with high accuracy. | 01-07-2016 |
20160003913 | BATTERY FUEL GAUGING SYSTEM - The present disclosure discloses a battery fuel gauging system, which includes a battery voltage collecting module and a microprocessor module. An input terminal of the battery voltage collecting module is configured to collect a terminal voltage of the battery. The microprocessor module is configured to receive the terminal voltage and estimate the remaining charge in the battery. The microprocessor module estimates an open-circuit voltage of the battery according to the terminal voltage of the battery and a built-in battery model, and further calculates the battery's remaining charge based on SOC-OCV relations of a typical lithium-ion battery. The present disclosure is capable of maintaining the precision of the battery fuel gauging system and can set the battery fuel gauging system inside or outside of the battery. | 01-07-2016 |
20160003917 | METHOD AND APPARATUS FOR ESTIMATING STATE OF BATTERY - A battery state estimation method and apparatus. The apparatus includes a time detector configured to detect a time during which a voltage level of a battery, being partially charged and discharged, changes through a constant current charge. The apparatus also includes a state of health (SoH) information estimator configured to estimate SoH information of the battery with the changed voltage level and the detected time, based on predetermined reference information. | 01-07-2016 |
20160011269 | Methods to Determine Battery Cell Voltage Relaxation Time Based on Cell Usage History and Temperature | 01-14-2016 |
20160011271 | AUTOMOTIVE MAINTENANCE SYSTEM | 01-14-2016 |
20160011272 | ESTIMATION METHODS AND DEVICES FOR STATE-OF-CHARGE OF BATTERIES | 01-14-2016 |
20160011274 | BATTERY LIFE ESTIMATION METHOD AND BATTERY LIFE ESTIMATION APPARATUS | 01-14-2016 |
20160018345 | METHOD AND APPARATUS FOR DETECTING ABNORMAL STATE OF BATTERY - A method and apparatus for detecting an abnormal state of a battery are provided. An entropy calculator is configured to calculate an information entropy based on battery estimation information and battery measurement information. The battery estimation information corresponds to an output required from the battery, and the battery measurement information is collected from the battery. A battery abnormality determiner is configured to determine whether the battery is in the abnormal state based on the information entropy. | 01-21-2016 |
20160018469 | METHOD OF ESTIMATING THE STATE OF CHARGE OF A BATTERY AND SYSTEM THEREOF - The invention relates to a method for estimating the state of charge (SOC) of a battery when battery is in the at least states of: charging, discharging, and relaxing. The invention makes use of the battery voltage (VBAT) instead of the battery current. In order to build models in the method, we use standard charging and discharging processes to collect battery information. | 01-21-2016 |
20160018471 | BATTERY SYSTEM IDENTIFICATION THROUGH IMPULSE INJECTION - Vehicle systems and methods can include a traction battery and a controller to operate the traction battery according to current limits of a battery model identified from a battery response to a pulse of current injected into the battery while the battery is not being discharged to propel the vehicle or being charged. The pulse can have a sampling time and magnitude. The response is battery terminal voltages measurements at every sampling time during a set duration. The controller can implement a state estimator configured to output battery state uses a battery impulse response. The pulse input into the battery can be a current signal and the measured battery response can be a voltage. The controller can select a time period for the pulse input and battery measurement response to be when the controller is not charging the battery or drawing current from the battery to propel the vehicle. | 01-21-2016 |
20160018472 | METHOD AND APPARATUS FOR ESTIMATING STATE OF BATTERY - A battery state estimation apparatus includes a sensing data acquirer configured to acquire sensing data on a battery, and a battery state estimator configured to approximate the sensing data by mapping the sensing data to a predetermined feature space, and compare the approximated sensing data to predetermined reference information to estimate a state of the battery. | 01-21-2016 |
20160025815 | BATTERY CELL VOLTAGE SENSING CIRCUIT DIAGNOSTICS - A system and method are disclosed for diagnosing an open circuit of a cell voltage sensing board. The board includes, for each cell, a line balancing resistor, a line sense resistor, and a gate. Each gate connects and disconnects a given line balancing resistor to and from a corresponding cell. A cell voltage is measured for a selected battery cell, and a controller determines if the selected battery cell is an uppermost or lowermost cell in the battery stack. A line sense resistance value is calculated for the selected battery cell using a first set of equations when the selected battery cell is the uppermost cell, a second set of equations when the selected battery cell is the lowermost cell, and a third set of equations when the selected battery cell is neither. A control action is executed when the calculated line sense resistance exceeds a calibrated resistance threshold. | 01-28-2016 |
20160041229 | APPARATUS AND METHOD FOR ESTIMATING A BATTERY STATE OF CHARGE - An apparatus for estimating battery state of charge may include a sensor configured to sense a voltage value and a current value of a battery, an internal resistance calculator configured to calculate an internal resistance using the voltage value and the current value, a noise remover configured to determine an output accumulation method or an open circuit using method using an open circuit voltage to remove a noise due to the internal resistance, an output accumulator configured to accumulate and calculate a residual capacity of the battery depending on the output accumulation method, a compensated state of charge calculator configured to calculate a compensated state of charge of the battery using a preset lookup table depending on the open circuit using method, and a battery state of charge estimator configured to calculate an estimated state of charge of the battery using the residual capacity or the compensated state of charge. | 02-11-2016 |
20160041231 | METHOD AND APPARATUS FOR ESTIMATING BATTERY LIFE CORRESPONDING TO CHARACTERISTIC OF USAGE BASED ON PATTERN INFORMATION - A method and apparatus for estimating a battery life are provided. The apparatus includes a battery information collector, a model determiner, and a battery life estimator. The battery information collector is configured to collect battery information from a battery. The model determiner is configured to select a battery degradation model representing pattern information corresponding to the battery information. The battery life estimator is configured to estimate battery life information based on the selected battery degradation model. | 02-11-2016 |
20160047862 | CHARGE SYSTEM TO IMPROVE BATTERY OPERATIONAL LIFE - The disclosure includes a system and method for providing charging services to mobile client devices. The system includes a processor and a memory storing instructions that, when executed, cause the system to: estimate a departure time of a future journey associated with a mobile client device; verify one or more electrical characteristics of a battery associated with the mobile client device; determine a target state of charge for the battery at the departure time; and determine a charge scheme to improve an operational life of the battery. The charge scheme has a combining charge cost that satisfies a charge objective of the mobile client device. The combining charge cost includes a weighted combination of a power cost and a battery degradation cost. The charge scheme is configured to charge the battery to achieve the target state of charge at the departure time. | 02-18-2016 |
20160054390 | TECHNIQUES FOR ROBUST BATTERY STATE ESTIMATION - More accurate and robust battery state estimation (BSE) techniques for a battery system of an electrified vehicle include estimating a current bias or offset generated by a current sensor and then adjusting the measured current to compensate for the estimated current bias. The techniques obtain nominal parameters for a battery model of the battery system based on a measured temperature and an estimated open circuit voltage (OCV). The techniques use these nominal parameters and the corrected measured current to estimate the OCV, a capacity, and an impedance of the battery system. The techniques utilize the OCV to estimate a state of charge (SOC) of the battery system. The techniques also estimate a state of health (SOH) of the battery system based on its estimated capacity and impedance. The techniques then control the electrified vehicle based on the SOC and/or the SOH. | 02-25-2016 |
20160054392 | APPARATUS AND METHOD FOR ESTIMATING STATE OF HEALTH OF BATTERY - Disclosed is an apparatus and method for estimating the battery state of health (SOH) to enable fast and easy SOH estimation of unused batteries. | 02-25-2016 |
20160061900 | METHOD AND DEVICE FOR MEASURING A DC VOLTAGE SUCH AS THE VOLTAGE OF A MOTOR VEHICLE BATTERY - A method for measuring a DC voltage such as the voltage Vbat of a motor vehicle battery, according to which the voltage Vbat is converted into a digital value Nbat by an analog-to-digital converter ( | 03-03-2016 |
20160061904 | Analysing Effects of Programs on Mobile Devices - A method for analysing the effect of installed applications (A | 03-03-2016 |
20160061908 | SECONDARY BATTERY CAPACITY MEASUREMENT SYSTEM AND SECONDARY BATTERY CAPACITY MEASUREMENT METHOD - A secondary battery capacity measurement system includes a data convertor, an SOC computer, and a maximum capacity computer. The data convertor determines a partial derivative characteristic curve of a capacity-to-voltage derivative over voltage, the partial derivative characteristic curve indicating a characteristic of a capacity-to-voltage derivative, from a set of historical data of time-sequentially-measured values of voltage and current. The SOC computer computes a difference between the partial derivative characteristic curve and a reference derivative curve indicating a reference characteristic of the capacity-to-voltage derivative, and fits the partial derivative characteristic curve to the reference derivative curve by reducing the difference to estimate an SOC. The maximum capacity computer estimates a maximum value of capacity, from the partial derivative characteristic curve and the reference derivative curve. The reference derivative curve is given by a complex of first and second characteristic derivative curves respectively derived from positive and negative electrode materials. | 03-03-2016 |
20160077160 | BATTERY IMPEDANCE AND POWER CAPABILITY ESTIMATOR AND METHODS OF MAKING AND USING THE SAME - A number of illustrative variations may include a method, which may include using at least a segment of impedance-based battery power capability estimation data, and using real-time linear regression, which may be used as a method of estimating future behavior of a system based on current and previous data points, to provide a robust state of power predictor. | 03-17-2016 |
20160084910 | SYSTEMS AND METHODS FOR ESTIMATING BATTERY SYSTEM ENERGY CAPABILITY - System and methods for determining battery system energy capability in a vehicle are presented. A voltage offset of a battery system may be determined based on comparison of an open circuit voltage of the battery system and a measured voltage. An estimated remaining pack energy may be determined based, at least in part, on the voltage offset. Similarly, an estimated total pack energy may be determined based, at least in part, on the voltage offset. An energy capability of the battery system may be determined based on the estimated remaining pack energy and the estimated total pack energy. | 03-24-2016 |
20160084913 | CELL MONITORING APPARATUS, BATTERY MONITORING APPARATUS, INTEGRATED CIRCUIT AND METHOD OF MONITORING A RECHARGEABLE CELL - A cell monitoring apparatus includes a processor and memory arranged to execute code representing a linear time-invariant state transition model and a non-linear observation model are provided to model a rechargeable cell using at least a non-linear open circuit voltage, an internal resistance, a time-invariant distortion voltage across a reactive component block, and a distortion current component constituting an error of measurement of current flowing through the reactive component block. An estimator unit performs extended Kalman filtering in respect of the state transition model and the observation model using the input state data in order to generate output state data. The processor is arranged to evaluate a criterion associated with at least part of the output state data and to generate a control signal in response to evaluation of the criterion. | 03-24-2016 |
20160084918 | BATTERY STATE ESTIMATION DEVICE, BATTERY STATE MANAGEMENT SYSTEM, BATTERY, BATTERY STATE ESTIMATION METHOD, AND NON-TRANSITORY STORAGE MEDIUM - The state of a battery parameter at the time of state estimation is estimated by using a plurality of pieces of parameter transition information (k, k+1), each piece of information representing an aspect of a temporal change in the battery parameter and representing the aspect of the temporal change until a predetermined state is achieved after a predetermined time that has elapsed from an initial state for each of use environments of a battery, and use environment information representing the use environment of the battery from the time of the start of use to the time of state estimation. In a case where the use environment of the battery is transited from a k-th use environment to a (k+1)-th use environment, a battery parameter p | 03-24-2016 |
20160096443 | METHOD AND SYSTEM FOR DETERMINING AN OPERATION CONDITION OF AN ENERGY STORAGE DEVICE - A method and a system are disclosed for determining a parameter map used for estimating an operation condition for an energy storage device which may be an energy storage device. The method includes updating the parameter map. When updating the parameter map, a correlation model is implemented taking into account aging behavior of the energy storage device. The model comprises correlation between different parts of the parameter map which enables updating the parameter map at parts which is presently not at a current operating point. Based on the parameter map, an operation condition of the energy storage device may be determined. | 04-07-2016 |
20160097816 | Estimation Method for State of Charge of Lithium Iron Phosphate Power Battery Packs - An estimation method for SOC of lithium iron phosphate power battery packs, include: 1, selecting a secondary battery (A) having characteristics of linear relationship between terminal voltage and SOC1; 2, connecting the secondary battery (A) with lithium iron phosphate power battery packs (B) in series, 3, repeatedly detecting values of the SOC1 and values the terminal voltages Ua of the secondary battery during the secondary battery is charging or discharging, fitting a formula (1) between the SOC1 and the terminal voltage Ua, the formula (1) being shown as following: SOC1=K1*Ua+M1 (1); 4, obtaining a formula (2) between SOC1 and SOC of the lithium iron phosphate power battery pack: SOC1=K2*SOC+M2 (2); 5, by formula (1) and formula (2), obtaining a formula (3) for calculating the SOC of the lithium iron phosphate power battery pack, the formula (3) being shown as following: SOC=Ua*K1/K2+(M1−M2)/K2 (3). | 04-07-2016 |
20160097821 | METHOD FOR MONITORING THE STATE OF A BATTERY IN A MOTOR VEHICLE - This disclosure relates to a method for monitoring the state of a battery of a motor vehicle, with which method internal corrosion in the battery can be identified. In this case, the water loss from the battery is estimated by means of a model, and an evaluation unit generates an alarm signal if the estimated water loss exceeds a defined limit value. The water loss model provides, in particular, that the z-curve, which is used in the charging strategy of the battery, and the battery temperature are used, and the mass flow of the water loss on account of gas development is determined as a function of the used z-curve and the battery temperature from a correlation, which is stored in the evaluation unit, at least between the mass flow of the water loss on account of gas development, a z-curve of the charging strategy and the battery temperature. | 04-07-2016 |
20160103181 | ESTIMATION CIRCUIT FOR SOC AND SOH OF BATTERY - Estimation circuit for SOC and SOH of battery includes a control circuit, a current estimation circuit, an open-circuit voltage detection circuit, an optional multiplexer and an electrical-capacity calculation circuit. The control circuit operates under six modes based on a reset signal, a voltage signal and a current signal. The current estimation circuit comprises a current modification circuit and a Coulomb integral circuit, the current modification circuit receives the current signal and outputs a modifying current signal, the Coulomb integral circuit integrates the modifying current signal to obtain an estimating electrical-capacity value. The open-circuit voltage detection circuit receives the voltage signal and outputs an initial electrical-capacity value. The optional multiplexer receives an estimation optional signal, the estimating electrical-capacity value and the initial electrical-capacity value to output an estimating electrical-capacity signal. The electrical-capacity calculation circuit stores the estimating electrical-capacity signal to calculate battery-electrical-capacity remaining signal and state of health signal. | 04-14-2016 |
20160103184 | BATTERY STATE ESTIMATION APPARATUS - A battery state estimation apparatus estimates a state of a secondary battery based on a battery model thereof. The battery model includes a DC resistance model, a reaction resistance model, and a diffusion resistance model. The apparatus includes a DC information storage section which stores information on the DC resistance related to temperature of the secondary battery, a reaction information storage section which stores information on the reaction resistance parameter related to the temperature, a diffusion information storage section which stores information on each of the first and second parameters related to the temperature, and a state estimation section which calculates the DC resistance, the reaction resistance parameter, and the first and second parameters from the stored information, by using the temperature as input, and estimates the state of the secondary battery based on the DC resistance, reaction resistance parameter, and first and second parameters. | 04-14-2016 |
20160109522 | METHOD AND SYSTEM FOR ESTIMATING STATE OF CHARGE OF BATTERY - Disclosed is a method for estimating a state of charge (SOC) of a secondary battery using a full charge capacity (FCC) of the battery, the method including (S1) measuring voltage and current of the battery, (S2) calculating the FCC using a voltage change and a current integral of the battery during a specific time, (S3) estimating a time remaining until the battery is fully discharged using the calculated FCC and the measured voltage and current to calculate a self-discharge rate, (S4) calculating a capacity deterioration rate of each charge cycle of the battery, and (S5) applying the calculated self-discharge rate and the calculated capacity deterioration rate to estimate the SOC of the battery. | 04-21-2016 |
20160109527 | METHOD AND APPARATUS FOR DETERMINING A CHANGE IN RESISTANCE OF AN ENERGY STORAGE DEVICE AND VEHICLE - An apparatus and a method for determining a change in resistance (ΔR | 04-21-2016 |
20160109529 | REPORTED STATE-OF-CHARGE SCALING - In a general aspect, a method can include providing an indication that the electronic device has changed from a battery charging state to a battery discharging state and measuring an initial measured state-of-charge (MSOC) value of a battery of the electronic device. In the event the initial MSOC value is above a threshold value, the method can further include determining a compensation value based on the initial MSOC value and the threshold value, determining an initial reported state of charge (RSOC) value by scaling the initial MSOC value using the compensation value and reporting the initial RSOC value using the electronic device. | 04-21-2016 |
20160116542 | ESTIMATION DEVICE AND ESTIMATION METHOD - An estimation device and estimation method that can reduce computational load and enhance estimation accuracy in state estimation of an internal state quantity in a nonlinear system are provided. An estimation device ( | 04-28-2016 |
20160116543 | SYSTEM AND METHOD FOR SENSING BATTERY CAPACITY - One embodiment of the invention includes a battery sense system. The system includes a temperature sensor configured to measure a temperature of a battery and a memory configured to store predetermined data associated with steady-state and transient behaviors of the battery relative to a depth of discharge (DOD) of the battery. The system also includes a controller configured to measure a voltage of the battery and to calculate a state of charge (SOC) of the battery based on the voltage, the predetermined data, and the temperature. | 04-28-2016 |
20160116548 | CIRCUITRY AND TECHNIQUES FOR DETERMINING SWELLING OF A BATTERY/CELL AND ADAPTIVE CHARGING CIRCUITRY AND TECHNIQUES BASED THEREON - Disclosed are methods and systems for measuring and managing swelling of rechargeable batteries in situ. Some implementations involve using capacity fade or state of health of rechargeable batteries to estimate swelling of the rechargeable batteries. Some implementations provide methods and systems for measuring battery swelling based on inductive or capacitive coupling between sensors and the battery. Some implementations provide means to manage or reduce swelling of rechargeable batteries by applying adaptive charging with consideration of battery swelling. | 04-28-2016 |
20160131701 | BATTERY TESTING SYSTEM AND METHOD - A battery testing method according to an exemplary aspect of the present disclosure includes, among other things, controlling a temperature of an environmental chamber that houses at least one battery cell during a test cycle to maintain a relatively constant temperature of the at least one battery cell throughout the test cycle. | 05-12-2016 |
20160131714 | POWER AND CURRENT ESTIMATION FOR BATTERIES - A method and a system are provided for determining a maximum charge current or a maximum discharge current of an energy storage cell of an energy storage device. The method includes providing a predetermined upper voltage limit or lower voltage limit, and providing a time horizon as a time difference from a present time to a future time. The method also include, with a repetition time period different from the time horizon, repeating measuring a present voltage level of the energy storage cell, calculating a voltage difference between the present voltage level and the upper voltage limit or the lower voltage limit, and determining the maximum charge current or maximum discharge current corresponding to the voltage difference and a model, such that the estimated voltage is within the voltage limits. | 05-12-2016 |
20160131715 | SYSTEM AND METHOD FOR ESTIMATING STATE OF HEALTH USING BATTERY MODEL PARAMETER - A method and system for estimating a state of health using battery model parameters are provided. The system includes a battery model parameter extractor that is configured to extract liquid-phase diffusivity of Li-ion parameters and a storage unit that is configured to store a mapping table in which states of health (SOH) for each liquid-phase diffusivity of Li-ion parameter are mapped. In addition, a SOH estimator is configured to use the mapping table to estimate the SOH that corresponds to a liquid-phase diffusivity of Li-ion extracted from the battery model parameter extractor. | 05-12-2016 |
20160131716 | SECONDARY BATTERY STATE DETECTION DEVICE AND SECONDARY BATTERY STATE DETECTION METHOD - [Object] To accurately detect states of a variety of types of secondary batteries even in a low-current range. | 05-12-2016 |
20160131720 | DEVICE FOR ESTIMATING STATE OF HEALTH OF BATTERY, AND STATE OF HEALTH ESTIMATION METHOD FOR BATTERY - A device for estimating state of health of battery, and a state of health estimation method with improved estimation accuracy of the state of health of the battery are provided. The device for estimating state of health includes: a charge and discharge current detection unit ( | 05-12-2016 |
20160139207 | APPARATUS FOR CALCULATING STATE OF CHARGE OF STORAGE BATTERY - In an apparatus, an OCV calculator measures a close circuit voltage (CCV) across an equivalent circuit of a storage battery, and calculates an open circuit voltage (OCV) across the storage battery based on the CCV, the equivalent circuit, and a current flowing through the storage battery. The equivalent circuit simulates an electrochemical behavior of the storage battery. The equivalent circuit includes the OCV as a power supply voltage and a predetermined internal impedance connected in series to the power supply voltage. The internal impedance includes a capacitance. A calculator calculates an SOC of the storage battery as a function of the OCV. A determiner determines whether the capacitance is saturated as a function of an electrical parameter associated with a charge stored in the capacitance. A diagnosing unit diagnoses whether the SOC of the storage battery is appropriate according to whether the capacitance is saturated. | 05-19-2016 |
20160139210 | MONITORING CHARGE STORED IN A BATTERY - A method and corresponding device, for monitoring a charge of a battery. The method obtains a battery current measurement value and a battery voltage measurement value, and applies a current integration method to update a primary charge estimate value representative of the charge stored in the battery by taking into account the battery current measurement value. The method further determines an ancillary charge estimate value representative of the charge stored in the battery using a battery model taking into account the battery voltage measurement value, and determines an error value for the ancillary charge estimate value, in which the error value expresses the reliability of the battery model. The method also applies a correction to the primary charge estimate value as function of the ancillary charge estimate value and the error value. Interpretation of the correction applied in this manner allows determination of current sensor offset and battery capacity change. | 05-19-2016 |
20160144736 | Method for Battery Management and Battery Management System - The disclosure relates to a method for battery management, wherein a magnitude of a current that can be provided by the battery within a prediction period is determined from an available magnitude of a status variable, which is predicted within the prediction period, wherein the predicted available magnitude of the status variable is determined by means of a difference between a permissible magnitude of the status variable, which is determined for a first reference period, and an obtained magnitude of the status variable, which is determined for the first reference period. The disclosure also relates to a computer program and a battery management system suitable for carrying out the method and to a motor vehicle having such a battery management system. | 05-26-2016 |
20160146894 | METHOD FOR MEASURING ELECTRIC CAPACITY OF CELL MODULE - A method for measuring electric capacity of a cell module is provided. A voltage measurement unit is configured to measure an instant voltage of the cell module. A calculation processing unit compares the instant voltage with a fully-charged voltage of the cell module. When the instant voltage is smaller than the fully-charged voltage, the calculation processing unit calculates a cell capacity displaying value of the cell module according to a corresponding threshold capacity, the instant voltage and the fully-charged voltage. The fully-charged voltage is a voltage value of the cell module when an electric capacity of the cell module enters a quasi fully-charged range. | 05-26-2016 |
20160154063 | METHOD FOR ESTIMATING THE STATE OF HEALTH OF AN ELECTROCHEMICAL CELL FOR STORING ELECTRICAL ENERGY | 06-02-2016 |
20160161565 | APPROACHES FOR MONITORING BATTERY HEALTH - Approaches provide for determining an internal rate of resistance of a battery in a computing device. In particular, various examples enable using a processor to expose the battery to a first load at a first rate of consumption and to measure a first analog voltage across the battery during exposure of the battery to the first load. The processor is able to expose the battery to a second load a second rate of consumption and to measure a second analog voltage across the battery during exposure of the battery to the second load. Linear equations can be used to solve for the battery's internal rate of resistance based at least in part on the first rate of consumption, the first analog voltage, the second rate of consumption, and the second analog voltage. In various embodiments, the battery's internal rate of resistance can be correlated to a battery health indicator. | 06-09-2016 |
20160161567 | METHOD AND APPARATUS FOR ESTIMATING STATE OF BATTERY - A method and apparatus for estimating a state of a battery are provided. A battery life estimation apparatus includes a time information accumulator configured to partition sensing data of a battery into sections, and to accumulate time information corresponding to the sections. The battery life estimation apparatus also includes a time information extractor configured to extract time information corresponding to a period from the accumulated time information. The battery life estimation apparatus further includes a life estimator configured to extract expected time information based on the accumulated time information, the time information corresponding to the period, and learning information, and configured to estimate an end of life (EOL) of the battery based on the expected time information. | 06-09-2016 |
20160169975 | BATTERY CAPACITY ESTIMATING APPARATUS AND BATTERY CAPACITY ESTIMATING METHOD THEREOF | 06-16-2016 |
20160178703 | BATTERY CHARACTERISTIC DETERMINING DEVICE FOR A VEHICLE | 06-23-2016 |
20160178706 | METHOD AND APPARATUS OF DETECTING STATES OF BATTERY | 06-23-2016 |
20160178707 | SYSTEMS AND METHODS FOR IDENTIFYING FAULTY BATTERY IN AN ELECTRONIC DEVICE | 06-23-2016 |
20160187428 | Method and apparatus for estimating state of health (SOH) of battery - A method and apparatus for estimating a state of health (SOH) of a battery are provided. The method includes measuring a voltage and a partial discharge time of the battery, acquiring a normalized partial discharge time using a battery model of a reference battery normalized with respect to a time, calculating a full discharge time of the battery based on the partial discharge time and the normalized partial discharge time, and estimating the SOH based on a ratio between a stored full discharge time of the reference battery and the full discharge time of the battery. | 06-30-2016 |
20160187429 | Apparatus For Predicting Power Parameter of Secondary Battery - In an apparatus, a circuit model includes a DC resistance model, and a reaction impedance model having a nonlinear relationship between a first potential difference across a reaction resistance and a current flowing through the secondary battery. The nonlinearly relationship depends on a temperature of the secondary battery. The circuit model includes a diffusion impedance model. The apparatus predicts a future remaining voltage across the secondary battery at a future timing when a predetermined duration will have elapsed since a prediction time. The apparatus calculates a future polarization voltage across the secondary battery at the future timing. The apparatus predicts a target power parameter of the secondary battery at the future timing according to the future remaining voltage, the future polarization voltage, a first potential difference across the reaction resistance, and a second potential difference across the DC resistance model. | 06-30-2016 |
20160187430 | APPARATUS FOR MEASURING CELL INTERNAL RESISTANCE ONLINE AND MEASUREMENT METHOD THEREFOR - An apparatus for online measurement of a battery internal resistance and a measurement method thereof are disclosed and applicable to online measure the internal resistance of a monomer cell in the battery, which include an excitation source circuit, electrically connected between any two monomer cells to be detected and a battery end and forming a loop respectively or simultaneously with the two monomer cells; an analog-to-digital conversion unit, for detecting and converting a response voltage of the monomer cell ends, and simultaneously electrically connected to the loop formed with the two monomer cells, for detecting and converting a current in the loop as well as detecting and converting a phase value between the current and the response voltage; a digital signal processing unit, electrically connected to the analog-to-digital conversion unit, for calculating the internal resistance value of the monomer cell to be detected after receiving a conversion signal from the analog-to-digital conversion unit; and realize precise, efficient and convenient internal resistance measurement of the monomer cell without damaging the monomer cell and sacrificing the online load of the battery. | 06-30-2016 |
20160187432 | ESTIMATION OF THE STATE OF DETERIORATION OF AN ELECTRIC BATTERY - A method for managing an electrochemical accumulator or a storage battery includes determining an estimated value of a state of deterioration of the accumulator from the accumulator's history of voltage values, intensity of current flow, and temperature. The estimated value is a barycentric value of the state of deterioration calculated as a barycenter of at least two values. The at least two values include a first value indicative of the state of deterioration of the accumulator calculated by a first method and a second value indicative of the state of deterioration of the accumulator calculated by a second method different from the first method. From an initial commissioning state of the accumulator, barycentric coefficients are varied at least once to calculate the next barycentric value when a previous value of the state of deterioration of the accumulator, calculated according to the first method, has passed a first threshold. | 06-30-2016 |
20160195586 | ENERGY MANAGEMENT IN A BATTERY | 07-07-2016 |
20160195587 | APPARATUS AND METHOD ESTIMATING STATE OF BATTERY PACK INCLUDING PLURAL BATTERY CELLS | 07-07-2016 |
20160195589 | DEGRADATION DIAGNOSIS SYSTEM AND DEGRADATION DIAGNOSIS METHOD FOR SECONDARY BATTERY | 07-07-2016 |
20160202324 | METHOD, DEVICE AND SYSTEM FOR ESTIMATING THE CHARGE STATE OF A BATTERY | 07-14-2016 |
20160202325 | METHOD AND SYSTEM FOR ITERATIVELY DETERMINING STATE OF CHARGE OF A BATTERY CELL | 07-14-2016 |
20160252582 | STATE-OF-CHARGE ESTIMATING DEVICE, STATE-OF-CHARGE DETERMINING METHOD, AND STATE-OF-CHARGE DETERMINING PROGRAM | 09-01-2016 |
20160252583 | APPARATUS FOR ESTIMATING STATE OF HYBRID SECONDARY BATTERY AND METHOD THEREOF | 09-01-2016 |
20160252585 | BATTERY PARAMETER ESTIMATION DEVICE AND PARAMETER ESTIMATION METHOD | 09-01-2016 |
20160252586 | INSPECTION METHOD OF SECONDARY BATTERY | 09-01-2016 |
20160253852 | BATTERY TESTER FOR ELECTRIC VEHICLE | 09-01-2016 |
20160377684 | ASSESSING THE QUANTITY OF ENERGY IN A MOTOR VEHICLE BATTERY - A method for evaluating a quantity of energy at constant power of a battery includes determining a value of a capacity parameter for the battery, constructing a table of values for a parameter of voltage across terminals of the battery as a function of a value of a current parameter, for N values of a state of charge parameter, determining a value of an internal resistance parameter for the battery, providing a table of values of an open-circuit voltage parameter, estimating a value of the state of charge parameter at an initial time, and estimating a quantity of energy parameter between a final and initial states of charge using a function whose variable is the state of charge parameter and whose parameters are said value of the capacity parameter for the battery, said value of the internal resistance parameter, and said value of the open-circuit voltage parameter. | 12-29-2016 |
20160377686 | DEGRADATION ESTIMATION METHOD, DEGRADATION ESTIMATION SYSTEM, AND DEGRADATION ESTIMATION PROGRAM - According to an embodiment, a degradation estimation method includes detecting a stop interval of a battery control apparatus having a function to calculate a state of charge of a battery, acquiring degradation information corresponding to a calculated state of charge calculated from the battery and a detection temperature detected from the battery or degradation information corresponding to the calculated state of charge and an ambient temperature based on a first degradation information database showing degradation of the battery in accordance with a set state of charge and a set temperature, and estimating the degradation of the battery in the stop interval based on the degradation information acquired. | 12-29-2016 |
20170234931 | METHODS AND APPARATUS FOR MODELING, MONITORING, ESTIMATING and CONTROLLING POWER CONSUMPTION IN BATTERY-OPERATED DEVICES | 08-17-2017 |
20170234934 | POWER SYSTEM AND STATE OF CHARGE ESTIMATION | 08-17-2017 |
20180024199 | DEVICE AND METHOD FOR ESTIMATING STATE OF BATTERY | 01-25-2018 |
20180024200 | SECONDARY BATTERY STATE-OF-CHARGE ESTIMATING DEVICE AND SECONDARY BATTERY STATE-OF-CHARGE ESTIMATING METHOD | 01-25-2018 |
20180026454 | Battery Management System | 01-25-2018 |
20190143834 | ELECTRICAL CONTROL SYSTEM | 05-16-2019 |
20220137146 | BATTERY MODEL ESTIMATION BASED ON BATTERY TERMINAL VOLTAGE AND CURRENT TRANSIENT DUE TO LOAD POWERED FROM THE BATTERY - A method for estimating parameters of a battery impedance model that models an output impedance of a battery may include dividing the battery impedance model into a plurality of separate impedance stages, wherein each separate impedance stage approximates the battery impedance model within a particular frequency range, the respective impedance in each separate impedance stage comprises a primary impedance model with a primary set of defining impedance parameters and a secondary impedance model with a secondary set of impedance parameters, and the battery impedance model is defined by a series connection of the respective primary impedance models of the plurality of impedance stages. The method may also include monitoring operation of the battery to determine the primary set of defining impedance parameters and the secondary set of impedance parameters. | 05-05-2022 |
20220137148 | MEASUREMENT SYSTEM AND METHOD FOR DETERMINING A STATUS OF A POWER SYSTEM IN A VEHICLE USING THE MEASUREMENT SYSTEM - A measurement system for determining safe operating conditions of a high-voltage power system of a vehicle, the measurement system comprising: a first voltage measurement unit arranged to measure a first voltage between a positive pole and a negative pole of the power system; a second voltage measurement unit arranged to measure a second voltage between the positive pole and ground of the power system; a third voltage measurement unit arranged to measure a third voltage between a negative pole and ground of the power system; and a measurement system control unit connected to the first, second and third voltage measurement units and configured to compare each of the first, second and third voltage with a corresponding first, second and third voltage threshold value, and if any of the first second or third voltages exceed the corresponding threshold value, provide an indication that a threshold voltage is exceeded. | 05-05-2022 |
20220137153 | MANAGEMENT METHOD, MANAGEMENT DEVICE, MANAGEMENT SYSTEM AND NON-TRANSITORY STORAGE MEDIUM - According to one embodiment, a management method of a storage battery including a plurality of batteries is provided. In the management method, replacement data is generated based on at least an estimation result of an internal state of each of the batteries, and deterioration rate data indicative of a deterioration rate of battery characteristics in each of the batteries, the deterioration rate data being based on the estimation result of the internal state. The replacement data includes information indicative of a target battery which is a target of replacement among the batteries, information relating to a battery with which the target battery is replaced, and information relating to a time of replacement of the target battery. | 05-05-2022 |