| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 324432000 | To determine battery electrolyte condition | 16 |
| 20090009176 | ELECTRONIC DEVICE, BATTERY PACK, AND ELECTRONIC DEVICE SYSTEM - An electronic device which is capable of performing high-accuracy remaining battery capacity management. The electronic device has a plurality of battery pack compartments assigned specific addresses, respectively. A remaining capacity-detecting unit detects the remaining battery capacity of a battery pack mounted in a battery pack compartment. A control microcomputer receives information indicative of a remaining battery capacity sent from a battery pack accommodated in one of the battery pack compartments and address information on the battery pack compartment, and sends correction information concerning the remaining battery capacity to the battery pack. | 01-08-2009 |
| 20090115420 | 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. | 05-07-2009 |
| 20090134879 | METHOD OF MEASURING CONCENTRATION OF FUEL - A method of measuring concentration of a fuel is provided. First, a fuel cell unit having at least an anode, a cathode, and a membrane electrode assembly (MEA) is provided. Next, a fuel is supplied to the anode, while a reactive gas is supplied to the cathode. Then, the amount of the reactive gas supplied to the cathode is adjusted and the concentration of the fuel is estimated in accordance with the consumption rate of the reactive gas in the fuel cell unit. | 05-28-2009 |
| 20090302855 | METHOD AND SYSTEM FOR CHARACTERIZING A BATTERY - Methods and systems are provided for characterizing a battery. A property of the battery is measured. A dynamic characteristic of the battery is determined from a second order linear dynamic model. | 12-10-2009 |
| 20100079145 | SYSTEM AND METHOD TO DETERMINE THE STATE OF CHARGE OF A BATTERY USING MAGNETOSTRICTION TO DETECT MAGNETIC RESPONSE OF BATTERY MATERIAL - One exemplary embodiment includes a method including providing a battery, producing a first magnetic field so that a second magnetic field is induced in the battery, sensing a magnetic field resulting from the interaction of the first magnetic field and the second magnetic field, utilizing the sensed net magnetic field to determine the state of charge of the battery. | 04-01-2010 |
| 20120119747 | BATTERY CONFIRMATION SYSTEM AND METHOD FOR CONFIRMING STATE OF CHARGE IN VEHICLE BATTERY - A battery confirmation system and method for confirming a state of charge in a vehicle battery installed in a vehicle includes a vehicle having a controller, a battery powering the controller, and an onboard diagnostics connector operatively connected to the controller. A tester is connectable to the onboard diagnostics connector. The tester is configured to receive a vehicle operating voltage from the connector when an electrical load on the battery is within a predetermined load range and to determine a SOC value based on the vehicle operating voltage. | 05-17-2012 |
| 20120194198 | SENSOR ARRANGEMENTS FOR MEASURING MAGNETIC SUSCEPTIBILITY - A device and method for determining the state of charge of an object, such as an electrochemical battery cell. The device includes a state of charge sensor having a primary magnet that creates a primary magnetic field, and at least one magnetic field sensing element. The sensitivity axes of the sensing elements are substantially perpendicular to the direction of polarization of the primary magnet. The primary magnet and the sensing elements are placed in the proximity of the object, and magnetic fields resulting from the magnetic susceptibility of the object are measured by the sensing elements. The sensing elements output an electrical signal from which the state of charge of the object can be determined. | 08-02-2012 |
| 20120212233 | BATTERY TESTER - A battery tester determines a remaining level of charge of a battery mounted within a separate electronic device having an audio jack. The battery tester includes a plug and a circuit having a high impedance input amplifier. At least one electrical contact of the plug is electrically coupled to an input of the high impedance input amplifier. The plug is removably insertable within the audio jack such that the battery of the separate electronic device is electrically connected to the input of the high impedance input amplifier. When electrically coupled to the battery, an output of the high impedance input amplifier provides a signal proportional to the remaining level of charge of the battery, whereby the remaining level of charge of the battery is obtainable by the battery tester without having to remove the battery from the electronic device. | 08-23-2012 |
| 20150338468 | BATTERY SYSTEM - A battery system includes a chargeable and dischargeable secondary battery and a controller that estimates the deterioration state or the charge state of the secondary battery. When estimating the deterioration state or the charge state, the controller uses an average ion concentration between a positive electrode and a negative electrode. The average ion concentration varies depending on an electric current flowing through the secondary battery. The average ion concentration between the electrodes can be calculated with a computing expression that includes a surface pressure of the secondary battery as a variable. The surface pressure of the secondary battery can be detected by a pressure sensor. The surface pressure of the secondary battery can also be estimated from an electric current flowing through the secondary battery. | 11-26-2015 |
| 20150346285 | Device for Assessing Extent of Degradation of Secondary Battery - A device for assessing an extent of degradation of a secondary battery, includes: a determination unit that determines whether or not a value of current flowing in the secondary battery is less than a predetermined value; a first voltage measurement unit that takes a time point at which it is determined by the determination unit that the value of the current is less than the predetermined value as being a start time point of a specific interval, and that measures a first battery voltage of the secondary battery at the start time point; a first charge amount calculation unit that obtains a first charge amount corresponding to the secondary battery based upon the measured first battery voltage; a second voltage measurement unit that, after the first battery voltage has been measured by the first voltage measurement unit, takes a time point at which it is determined by the determination unit that the value of the current is less than the predetermined value as being an end time point of the specific interval, and that measures a second battery voltage of the secondary battery at the end time point; a second charge amount calculation unit that obtains a second charge amount corresponding to the secondary battery based upon the measured second battery voltage; an integrated current amount calculation unit that obtains an integrated amount of the current flowing in the secondary battery during the specific interval; and a charge capacity calculation unit that obtains a difference between the first charge amount and the second charge amount, and that calculates a charge capacity by dividing the integrated amount of the current by the difference. | 12-03-2015 |
| 20150369867 | BATTERY MANAGEMENT TERMINAL AND BATTERY MANAGEMENT SYSTEM - A battery management terminal is for a secondary battery mounted on a device. The battery management terminal includes a second electronic control unit and an inform unit. The second electronic control unit is configured to, at the time when the secondary battery is replaced, acquire a historical information of an evaluation value of the secondary battery before replacement from the first electronic control unit. The second electronic control unit is configured to determine required characteristics required of a replacement secondary battery on the basis of the historical information of the evaluation value. The inform unit is configured to inform the required characteristics determined by the second electronic control unit. | 12-24-2015 |
| 20160025814 | INTERNAL CONDITION ESTIMATING SYSTEM AND ESTIMATING METHOD - A method of estimating, as the charging rate of an electricity storage system, the internal condition of the electricity storage system including plural batteries, and an internal condition estimating system utilizing that method are provided. A voltage measuring unit | 01-28-2016 |
| 20160061909 | BATTERY MONITORING APPARATUS - A battery monitoring apparatus includes wire sections each connected to a node of corresponding adjacent two of the unit cells of a battery pack at one end thereof, and branched into a first branch section and a second branch section at another end thereof. Each of the first and second branch sections is constituted of a positive part connected to a positive electrode of the corresponding unit cell and a negative part connected to a negative electrode of the corresponding unit cell. The battery monitoring apparatus includes an equalizing switch provided between each of the first wire pairs, and a voltage detector to detect a voltage between each first wire pair, and an equalizing section which performs an equalizing process to equalize a terminal voltage of each unit cell by turning on the corresponding equalizing switch depending on a result of voltage detection by the voltage detector. | 03-03-2016 |
| 20160084917 | APPARATUS AND METHOD FOR DIAGNOSING DEGRADATION OF A HIGH VOLTAGE BATTERY OF A VEHICLE - An apparatus and method for diagnosing degradation of a high voltage battery of a vehicle are provided. The method includes calculating an average charging power of a slow charger during a setting interval on slow charging for an electric vehicle and calculating a correction factor based on the average charging power. The method also includes calculating a degree of degradation of the battery based on the average charging power and calculating a final degree of degradation by reflecting the correction factor to the degree of degradation. | 03-24-2016 |
| 20160146893 | Adjustable Length Battery Electrolyte Probe - Disclosed herein is an apparatus. The apparatus includes a sensor head section, a base section, a telescoping section, and an electronic component. The base section is connected to the sensor head section. The telescoping section includes a first end and a second end. The telescoping section is connected to the base section. The electronic component is proximate the first end of the telescoping section. The electronic component is protected from making contact with high current, electrically conductive battery elements and configured to sense battery parameters. | 05-26-2016 |
| 20160190658 | BATTERY-STATE ESTIMATION DEVICE - A battery-state estimation device obtains, at a first timing, a first resistance value corresponding to a first open circuit voltage of a lithium-ion secondary battery and a second resistance value corresponding to a second open circuit voltage, which is higher than the first open circuit voltage, of the lithium-ion secondary battery. Further, the battery-state estimation device obtains, at a second timing which is different from the first timing, a third resistance value corresponding to the first open circuit voltage and a fourth resistance value corresponding to the second open circuit voltage. The battery-state estimation device determines presence or absence of lithium deposition in the lithium-ion secondary battery, based on a magnitude relation between a first variation amount of the third resistance value with respect to the first resistance value and a second variation amount of the fourth resistance value with respect to the second resistance value. | 06-30-2016 |
