Class / Patent application number | Description | Number of patent applications / Date published |
320126000 | PARALLEL CONNECTED BATTERIES | 65 |
20080272736 | SMART LEAD ACID BATTERY (DIS)CHARGING MANAGEMENT SYSTEM - A smart lead-acid battery (dis)charging management system comprised of one or a plurality of identical smart battery unit with each including a controller, a lead-acid battery, and a sensor switch device working together with a alternator and a voltage regulator to upgrade charging efficiency, achieve consistent capacity among batteries, and isolate malfunctioning or failing battery to extend service life of the battery. | 11-06-2008 |
20090045775 | Charging Circuit for Parallel Charging in Multiple Battery Systems - A charging circuit for controlling a system charging parameter provided to a host of rechargeable batteries, wherein the host of batteries includes at least a first battery and second battery that may be coupled in parallel. The charging circuit provides for fast charging of rechargeable batteries in parallel. Independent current and voltage sensing for each battery enables parallel charging of batteries at different charging currents. The charging circuit may be configured to accept either analog or digital signals from an associated power management unit. | 02-19-2009 |
20090230922 | Multiple battery management system with charge balancing mechanism - The instant invention is directed to a multiple battery system and network controlled multiple battery system. A main battery having a main positive output and a main negative output is also provided, together with an at least one auxiliary battery having an at least one auxiliary positive output and an at least one auxiliary negative output. A main electrical circuit having an at least one switching device is provided with at least two operating positions. The two operating positions selectively couple the main and at least one auxiliary battery to the common positive terminal. In the first of the at least two operating positions electrical charge is provided to both the main battery and the at least one auxiliary battery. A controller is also provided and coupled to the main electrical circuit and switches the at least one switching device based on input from an at least one sensor. | 09-17-2009 |
20090278497 | APPARATUS AND METHOD FOR CONTROLLING POWER - An apparatus for controlling a power source, and which includes a power source unit including a plurality of power cells connected in parallel, a balancing unit coupled to the plurality of power cells of the power source unit, and a controller configured to control the balancing unit to balance operational characteristics of the plurality of power cells. | 11-12-2009 |
20100033130 | BATTERY CHARGE CONTROL DEVICE AND MARINE VESSEL INCLUDING THE SAME - A battery charge control device for a marine vessel is arranged to control charging of a plurality of batteries, which include a main battery arranged to supply power for operating an engine of a propulsion device, and an accessory battery which is arranged to supply power for devices other than the engine. The main battery and the accessory battery are connected in parallel to a power generator attached to the engine. The charge control device includes a switching element arranged to short-circuit the power generator, a first control unit arranged to execute first control to short-circuit the power generator by driving the switching element when a voltage of the main battery exceeds a first upper limit, in a first control period, and a second control unit arranged to execute second control to short-circuit the power generator by driving the switching element when a voltage of the accessory battery exceeds a second upper limit, in a second control period which is longer than the first control period. | 02-11-2010 |
20100097034 | HIERARCHICAL BATTERY MANAGEMENT SYSTEM - A hierarchical battery-management system mainly comprises a monitoring and equalizing module, an intermediary module and a communication and decision module. The monitoring and equalizing module electrically couples with the battery. The intermediary module electrically couples with the monitoring and equalizing module and the communication and decision module; besides, the communication and decision module electrically couples with a power system or an electronic/electrical apparatus. The present invention uses a digital transmission interface constructed from an uplink/downlink circuit with a DC isolation component for common battery management, and a hierarchical management structure constructed by the intermediary module to screen data and to transmit meaningful cell data to meet real time managing requirements of the large battery set. | 04-22-2010 |
20100141210 | ALTERNATOR FOR CHARGING MULTIPLE ELECTRIC STORAGE DEVICES - An alternator includes a body portion housing a charging circuit. A voltage regulator is mounted to the body portion and electrically coupled to the charging circuit. The voltage regulator is configured and disposed to output at least one charging current. An isolator is mounted to the body portion and electrically coupled to the charging circuit and the voltage regulator. The isolator is configured and disposed to be electrically coupled to at least two batteries with the isolator independently passing the at least one charging current to each of the first and second batteries. | 06-10-2010 |
20100327810 | ASSEMBLED BATTERY CHARGING METHOD AND BATTERY CHARGING SYSTEM - The present invention provides a battery charging system that includes: an assembled battery, in which a plurality of secondary batteries are connected in parallel using valve-regulated lead-acid batteries in which separators impregnated with electrolyte are arranged between mutually opposed plate-like positive electrodes and negative electrodes; and a plurality of charging units that are provided corresponding to the respective secondary batteries and that charge the corresponding secondary battery, respectively, wherein each of the charging units executes multistage constant-current charging in which constant-current charging is repeated a preset plurality of times for supplying current of a prescribed set current value to each corresponding secondary battery until the terminal voltage of the each corresponding secondary battery reaches a prescribed charging cutoff voltage, and also the set current value is reduced each time the constant-current charging is repeated. | 12-30-2010 |
20110089903 | METHOD AND DEVICE FOR FEEDING POWER TO WRIST DEVICE - The invention relates to a method and device arrangement for feeding power to a wrist device, such as for example a mobile phone, a GPS device, heart rate monitor or the like. With the help of different embodiments of the invention also wrist devices with relatively high power consumption can be implemented, which devices nevertheless have small external dimensions and are light weighted. Method and device according to the invention for connecting the battery cells to each other enable a more flexible and advantageous structure of the wrist band both on the point of view of usability and manufacture. A varying number of battery cells can be connected and they can vary in size according to needs. Small number of conductors enables a moving and reliable contact surface between battery cells. Depending on the application, two or three contacts are needed, depending on whether the charging voltage is lead to the battery cells separately. The invention is based on that that own electronics unit, switch component and protection circuit are placed in connection with each battery cell. The electronics unit takes care of individual charging of the battery, the switch component connects the battery cell to the voltage feed of the actual device and the protection circuit limits the short circuit current as well as prevents the arise of damages in situations of excess voltage. | 04-21-2011 |
20110089904 | CURRENT CLAMPING PARALLEL BATTERY CHARGING SYSTEM TO SUPPLEMENT REGENERATIVE BRAKING IN ELECTRIC VEHICLE - To provide additional charge storage for an electric vehicle, an additional battery ( | 04-21-2011 |
20110248681 | Systems and methods for configuring and charging hybrid battery systems - Systems and methods for simultaneously charging two or more cell strings of a hybrid battery system from a shared input current path to the battery system. An input common charging current may be limited to the smallest maximum allowable charging current value of multiple battery cell strings of a hybrid battery system, or may be provided as the greater of the maximum allowable charging currents of multiple battery cell strings of a hybrid battery system with current supplied to individual cell strings that require less than the maximum current being individually controlled so as not to exceed the maximum allowable current for each of the individual cell strings of the hybrid battery system. | 10-13-2011 |
20110267007 | DISCHARGE METHOD FOR A BATTERY PACK - The present invention provides a discharge method for a hybrid battery pack to thereby extend its usage life. The discharge method determines which one of the battery sets installed in a hybrid battery pack should be held active to discharge electricity according to their parameters of battery state of health (SOH), wherein at least two of the battery sets are different in cell type. Accordingly, the method can optimize the discharging efficiency of the hybrid battery pack and then extend its usage life. | 11-03-2011 |
20120194139 | RECHARGEABLE BATTERY SYSTEM - A rechargeable battery system capable of suppressing the increase in the internal resistance of a lithium ion rechargeable battery and having long life is provided. A rechargeable battery system comprising rechargeable battery modules each having a plurality of lithium ion rechargeable batteries, and a charge/discharge control means for controlling assembled batteries having the rechargeable battery modules connected in parallel, in which the charge/discharge control means controls discharge, upon discharge of the lithium ion rechargeable batteries, on every lithium ion rechargeable battery modules connected in parallel is adopted. | 08-02-2012 |
20120206103 | Parallel Circuit of Accumulator Lines - A circuit for connecting a first accumulator line to a second accumulator line from an accumulator is described. The accumulator is provided for charging and discharging electrical energy via the accumulator lines. Each accumulator line has a positive pole and a negative pole for charging and discharging electrical energy. The circuit has at least one first switch which is provided for disconnecting and connecting two similar poles of the two accumulator lines. | 08-16-2012 |
20120212183 | POWER MANAGEMENT SYSTEM - Provided is a power management system capable of controlling charge and discharge of storage batteries according to power requirement of load even when handling electric power of large scale. A system controller receives load-related information data including the power requirement of load and storage battery-related information data including a state of a storage battery assembly including multiple storage batteries and creates an overall charge-discharge control instruction for the entire power management system based on the load-related information data and the storage battery-related information data. A hierarchical charge-discharge control apparatus receives the overall charge-discharge control instruction from the system controller and performs charge-discharge control of the multiple storage batteries, classified into hierarchical levels, on a hierarchical level basis. | 08-23-2012 |
20120217932 | CONNECTING ELECTRICAL STORAGE DEVICES IN PARALLEL - A circuit and a method for connecting a first electrical storage device and a second electrical storage device in parallel is disclosed. The first electrical storage device and the second electrical storage device have in each case a no-load voltage U | 08-30-2012 |
20120242291 | BATTERY PACK - A battery pack includes a first battery and a second battery connected electrically in parallel and performing charge and discharge, and a heater generating heat. The first battery can perform charge and discharge with a current larger than that of the second battery. The second battery has an electric storage capacity larger than that of the first battery. The heater is placed at a position closer to the first battery than the second battery. | 09-27-2012 |
20120262121 | BATTERY BALANCING CIRCUIT AND BALANCING METHOD THEREOF AND BATTERY ACTIVATION METHOD - Disclosed is a battery balancing circuit for balancing the voltages of a reference battery module and a detachable battery apparatus, which has a load channel, a charging-discharging channel, a MCU and a charging-discharging control circuit. The reference battery module and detachable battery apparatus are connected in parallel. The load channel is connected to the reference battery module. The charging-discharging channel is disconnected from the reference battery module. The load and charging-discharging channels are connected to the detachable battery apparatus respectively through a first and a second switches. When the voltage of the detachable battery apparatus is higher or lower than a threshold value, the MCU controls the first and second switches, such that the detachable battery apparatus is connected to the charging-discharging control circuit through the charging-discharging channel and disconnected from the load channel. Then the MCU charges or discharges the detachable battery apparatus through the charging-discharging control circuit. | 10-18-2012 |
20120268070 | APPARATUS AND METHOD FOR CONTROLLING CONNECTION OF BATTERY PACKS - Disclosed is an apparatus for controlling the connection of a plurality of battery packs including a switching unit provided on a charge/discharge path of each battery pack to selectively open and close the charge/discharge path, a first control unit provided for each battery pack to determine the state of charge (SOC) of each battery pack and control the opening/closing of the switching unit, and a second control unit to receive the determined SOC of each battery pack from the first control unit, group battery packs having a predetermined range of SOCs, select a group containing a largest number of battery packs, connect the battery packs of the selected group in parallel, charge or discharge the parallel-connected battery packs so that a difference in SOC between the parallel-connected battery packs and the non-connected battery pack falls within a predetermined range, and connect the non-connected battery pack thereto in parallel. | 10-25-2012 |
20120286735 | ENERGY STORAGE MODULE AND CONTROLLING METHOD THEREOF - Disclosed herein is an energy storage module including a first energy container, a second energy container that is connected to the first energy container in parallel, and a switching control unit that senses the energy containers corresponding to predetermined deterioration conditions among the first and second energy containers to selectively open the energy containers corresponding to deterioration conditions so as to selectively charge/discharge the energy containers, whereby the deterioration can be minimized without stopping the overall energy storage module. | 11-15-2012 |
20120326671 | BALANCING THE STATES OF CHARGE OF CHARGE ACCUMULATORS - Electrical systems for balancing charging or loading of parallel-arrayed charge accumulators ( | 12-27-2012 |
20130009602 | Temperature Controlled Parallel Balancing - A method of controlling current in a parallel battery systems includes providing at least two parallel connected batteries, each said battery having an internal resistance and dissipating heat while operating; during operation, measuring at least the temperature and current of each individual battery; and providing instructions to a temperature control system having a temperature control module coupled with each said battery for individually cooling each said battery to adjust temperature of at least one battery in order to maintain the current at a target value. | 01-10-2013 |
20130015819 | POWER STORAGE UNIT, CORRECTION METHOD FOR CAPACITY VALUES OF STORAGE BATTERIES, AND POWER STORAGE SYSTEMAANM Nakashima; TakeshiAACI Moriguchi CityAACO JPAAGP Nakashima; Takeshi Moriguchi City JPAANM Ikebe; HayatoAACI Moriguchi CityAACO JPAAGP Ikebe; Hayato Moriguchi City JP - A power storage unit is provided which is able to facilitate recalibration and which is able to supply power even while recalibration is being performed. A method for correcting the capacity values of storage batteries, and a power storage system are also provided. | 01-17-2013 |
20130063090 | BATTERY PROTECTION CIRCUIT AND BATTERY PROTECTION DEVICE, AND BATTERY PACK - A battery protection circuit to protect secondary batteries coupled in parallel, includes an overdischarge detection part provided for each of the secondary batteries and to output an abnormality signal when an overdischarge is detected from a corresponding one of the secondary batteries, an overcurrent detection part provided for each of the secondary batteries and to output an abnormality signal when an overcurrent is detected from a corresponding one of the secondary batteries, and a discharge control part to prohibit a discharge of at least one secondary battery when the abnormality signal is output from at least one of the overdischarge detection part and the overcurrent detection part. | 03-14-2013 |
20130063091 | BATTERY SYSTEM AND CONTROL METHOD OF BATTERY SYSTEM - A battery system includes a first battery and a second battery connected in parallel and performing charge and discharge. A first relay is switched between an ON state in which the charge and discharge of the first battery are allowed and an OFF state in which the charge and discharge of the first battery are prohibited. A second relay is switched between an ON state in which the charge and discharge of the second battery are allowed and an OFF state in which the charge and discharge of the second battery are prohibited. A controller controls the ON state and the OFF state of each of the first relay and the second relay. The controller also changes the order in which the first relay and the second relay are switched to the ON state, in performing the charge and discharge of the first battery and the second battery. | 03-14-2013 |
20130088202 | CELL BALANCE CONTROL UNIT - A cell balance control unit is provided, including: a discharge circuit connected to each of a plurality of battery cells constituting a battery in parallel; a voltage detecting circuit that detects a voltage of each of the battery cells; and a control device that controls each of the switching elements of the discharge circuit so that the voltage of each of the battery cells is made uniform based on voltage detection results of each of the battery cells, wherein the control device controls the switching elements of the discharge circuits connected to the adjacent battery cells in each different duty ratio, and detects disconnection of wirings extracted from both ends of each battery cell based on a potential difference between the adjacent battery cells. | 04-11-2013 |
20130106357 | INTELLIGENT CHARGING AND DISCHARGING SYSTEM FOR PARALLEL CONFIGURATION OF SERIES CELLS WITH SEMICONDUCTOR SWITCHING | 05-02-2013 |
20130200851 | METHOD AND APPARATUS FOR POWERING AN ELECTRIC HAND-HELD POWER TOOL DEVICE - An apparatus for powering an electric hand-held power tool device by an output voltage includes at least two connectors for connecting the apparatus to at least two batteries. At least two switches, and a command circuit of the switches, are provided. The command circuit is arranged for commanding the powering of the electric hand-held power tool device by using the battery which presents the highest open circuit voltage if the output voltage is higher than the open circuit voltage of each of the other batteries. And, by using the battery which presents the highest open circuit voltage and at least one other battery if the output voltage is lower than the open circuit voltage of the other battery, the battery which presents the highest open circuit voltage and the at least one other battery being connected in parallel. | 08-08-2013 |
20130229152 | POWER SUPPLY STACK REPLACEMENT METHOD, CONTROL DEVICE, AND STORAGE MEDIUM STORING CONTROL PROGRAM - A power supply stack replacement method includes: discharging or charging power supply stacks of a power supply device in which the power supply stacks are electrically connected in parallel with each other until the SOC of each of the power supply stacks becomes a predetermined value; and replacing a targeted power supply stack among the power supply stacks of which the SOC is the predetermined value through the charging or discharging with a replacement power supply stack. | 09-05-2013 |
20130234669 | INTELLIGENT INTEGRATED BATTERY MODULE - An energy storage system is provided. The system includes a plurality of energy storage modules connected in parallel. Each energy storage module has an energy storage source, a bidirectional current converter configured for supplying charge to the energy storage source from a power source and for discharging current for use by an electrical device, a monitoring module for monitoring the energy storage source and the current converter, and a controller configured to control the current converter based upon monitored characteristics of the storage source and the current converter to produce a respective output signal for each module. A communications module is in connection with each output signal of the energy storage modules and configured for communicating a combined output signal with one of the power source and the electrical device. | 09-12-2013 |
20130249491 | DISCHARGE CONTROLLER - Remaining capacity calculation section ( | 09-26-2013 |
20130265008 | DISCHARGE CONTROLLER - Remaining capacity calculation section ( | 10-10-2013 |
20130285611 | POWER SUPPLY APPARATUS - A power supply apparatus includes: a plurality of power supply units; a positive polarity coupling portion; and a negative polarity coupling portion; each of the power supply units is provided with: battery units; first relays connected in series to the battery units, capable of disconnecting electrical connection between the battery units and any one of the positive polarity coupling portion and the negative polarity coupling portion; resistor elements having one ends which are connected to the battery units between the battery units and the first relay; a resistor coupling portion; and a second relay connected to the resistor coupling portion, capable of disconnecting electrical connection between the resistor coupling portion and any one of the positive polarity coupling portion and the negative polarity coupling portion which is connected to the first relays, the second relay having fewer in number than the number of the power supply units. | 10-31-2013 |
20130285612 | CHARGE/DISCHARGE CONTROL SYSTEM FOR STORAGE BATTERY ASSEMBLY - A charge/discharge control system for a storage battery assembly includes a plurality of battery blocks each connected in parallel to a charge/discharge main bus via protective resistors, and a plurality of switches connected in parallel to the protective resistors, between the charge/discharge main bus and the plurality of battery blocks. In a state in which the plurality of switches are all on, when one of the plurality of switches turns off and a parallel off occurs, a charge/discharge control device performs processing for throttling the charge/discharge power, that flows to the charge/discharge main bus, in accordance with a pre-set reference. When the parallel off is canceled by the throttling processing, the charge/discharge power is restored. | 10-31-2013 |
20130285613 | BATTERY CONTROL DEVICE - Provided is a storage battery system comprising a plurality of storage batteries connected in parallel, characterized by detecting the temperature and energy amount of each battery connected in parallel, calculating the deterioration rate of each battery based on the detected temperature and energy-amount, and controlling the power amount to be inputted to and output from each battery so that the deterioration rate of each storage battery will come closer to each other. | 10-31-2013 |
20130307482 | Device and method for charging a plurality of parallel-connected non-aqueous electrolyte secondary batteries with parallel-connected chargers - A device and method for charging a plurality of parallel-connected non-aqueous electrolyte secondary batteries with parallel-connected chargers, wherein a second charger which parallel connected to the first charger is additionally arranged to ensure that the charge process can be continued, and the charge process can be performed without battery management system. | 11-21-2013 |
20130320927 | POWER SUPPLY APPARATUS AND POWER SUPPLY SWITCHING METHOD - A power supply apparatus includes a plurality of power storage modules that are connected in parallel and a backup power storage module that is connected in parallel with the plurality of power storage modules. When charging or discharging of at least one of the power storage modules is disabled, charging of the other power storage modules is inhibited, discharging of the backup power storage module is permitted, states of charge of the backup power storage module and the other power storage modules are detected, and charging of the backup power storage module and the other power storage modules is permitted in accordance with the detected states of charge. | 12-05-2013 |
20130335028 | BATTERY PACK AND METHOD OF CONTROLLING THE SAME - A battery pack is disclosed. The battery pack includes a first battery cell group having a plurality of battery cells, and a second battery cell group having a plurality of battery cells. The battery pack also includes a first impedance unit serially connected to the first battery cell group, a second impedance unit serially connected to the second battery cell group, and a battery management unit respectively determining a degree of deviation of the first battery cell group and the second battery cell group to adjust impedances of the first impedance unit and the second impedance unit. Accordingly, a decrease in performance due to deviation difference between batteries may be prevented. | 12-19-2013 |
20140009117 | ELECTRICAL STORAGE SYSTEM AND MOBILE BODY - An electrical storage system includes: a plurality of electrical storage portions that are connected parallel to each other; a measurement portion that measures the full charge capacity of each of the electrical storage portions while switching an electrical storage portion that is a measurement target among the electrical storage portions; and a charge and discharge control portion that performs charge and discharge control on the electrical storage portions. The charge and discharge control portion makes other electrical storage portion other than the measurement target perform charge or discharge in a period of time during which the measurement portion measures the full charge capacity of the electrical storage portion that is the measurement target. | 01-09-2014 |
20140021925 | BATTERY POWER SUPPLY APPARATUS AND BATTERY POWER SUPPLY SYSTEM - A battery power supply apparatus has: a battery including a parallel circuit that has series circuits connected in parallel, each of the series circuits having a secondary battery and a cutoff element connected in series, each of the cutoff elements becoming a disconnected state, when an abnormality occurs in the secondary battery; a first detector detecting an overall current value flowing through the battery block; a second detector connected in parallel to the series circuits to detect a block voltage value of the battery block; a setting portion setting a current limit value; and an estimation portion estimating, as the number of valid batteries, the number of cutoff elements which have not become disconnected states, based on the overall current value and the block voltage value. The setting portion sets the current limit value so that the current limit value decreases as the number of valid batteries decreases. | 01-23-2014 |
20140062409 | POWER SUPPLY SYSTEM - In control over a power supply system that includes a plurality of parallel connected batteries, electric power is supplied from the plurality of batteries to an electrical device at a total output upper limit value that is obtained by applying a first computing to individual output upper limit values of the plurality of batteries, and, when there is an abnormality in at least one of the plurality of batteries, the at least one of the plurality of batteries, having an abnormality, is isolated, and a total output upper limit value is set by applying a second computing to the battery having no abnormality, the total output upper limit value being smaller than the total output upper limit value obtained through the first computing. | 03-06-2014 |
20140077765 | Virtual Cell Method for Battery Management - The present disclosure provides a system, method, and apparatus for battery management. The disclosed method involves current balancing through sinking and/or sourcing current, by at least one virtual cell, for battery cells in a battery pack based on available current and capacity of the battery cells. In one or more embodiments, at least one virtual cell is capable to sink and/or source current for at least one degraded battery cell or at least one dead battery cell. | 03-20-2014 |
20140084872 | CHARGE AND DISCHARGE CONTROL DEVICE AND CHARGE AND DISCHARGE CONTROL METHOD - A charge and discharge control device includes: a coordination unit which generates coordination information for calculating an output value which each storage battery is caused to output, based on a bus voltage value and a target voltage value; a string output calculating unit which calculates, based on the coordination information, an output target value indicating the output value which the storage battery is caused to output to maintain the bus voltage value at the target voltage value; and a control unit which causes, among the storage batteries, a storage battery corresponding to the calculated output target value to output an output having magnitude indicated by the calculated output target value, wherein the coordination unit generates the coordination information to avoid simultaneous presence of a storage battery that outputs an output in a charge direction and a storage battery that outputs an output in a discharge direction. | 03-27-2014 |
20140091767 | POWER SOURCE APPARATUS FOR VEHICLE - A power source apparatus mounted to a vehicle is equipped with a lead-acid battery and a lithium battery. An open circuit voltage and an internal resistance of each of the batteries are determined to satisfy the following conditions (a1), (a2), and (a3): (a1) In the use range of SOC of the lead-acid battery and the use range of SOC of the lithium battery, there is an equal voltage point Vds at which the open circuit voltage V0 (Pb) of the lead-acid battery becomes equal to the open circuit voltage V0 (Li) of the lithium battery; (a2) The relationship of V0 (Li)>V0 (Pb) is satisfied in the upper limit side of the use range of SOC of the battery; and (a3) A terminal voltage Vc (Li) of the lithium battery is not more than a set voltage Vreg of a regulator when a maximum current flows in the lithium battery. | 04-03-2014 |
20140117936 | POWER STORAGE SYSTEM - A power storage system is provided with a battery and a battery charger which charges a battery pack having a battery voltage and current detection circuit. A charge circuit is structured such as to acquire terminal voltage information of the battery from a battery voltage detection circuit of the battery pack in a charging process, carry out a constant current charge control in a state in which the terminal voltage of the battery is equal to or lower than a previously determined reference voltage value of the battery, and switch to a constant voltage charge control maintaining the output voltage of the charge circuit in the case that the terminal voltage of the battery goes beyond the reference voltage value, thereby carrying on the charge until the battery is fully charged. Therefore, the power storage system can accurately charge the battery to a prescribed amount safely. | 05-01-2014 |
20140159666 | CHARGE CONTROL DEVICE, CELL SYSTEM, AND CHARGE CONTROL METHOD - Even when current values of a current that flows to a plurality of cell modules connected in parallel are different, efficient charging is performed. A charge control device that controls a charging current to be supplied to a plurality of cell modules connected in parallel compares a maximum current value, selected from current values detected by a current sensor provided in each of a plurality of the cell modules, with a reference current value predetermined as a maximum current value of the current to be supplied to secondary batteries, and controls the charging current to be supplied to a plurality of the cell modules based on a comparison result. | 06-12-2014 |
20140176073 | ELECTRIC VEHICLE BATTERY SYSTEMS WITH EXCHANGEABLE PARALLEL ELECTRIC VEHICLE BATTERY MODULES - Systems and methods for electric vehicle battery systems with replaceable parallel electric vehicle battery modules are described herein. The electric vehicle battery system includes a plurality of electric vehicle battery modules connected in parallel. Each electric vehicle battery module includes a battery. Each electric vehicle battery module can also include a balancing circuit in electrical communication with a current path from the battery to an electric vehicle battery module output node. Each electric vehicle battery module also may have a current sensor in electromagnetic communication with the current path between the battery and the balancing circuit. The current sensor can be configured to sense a current level between the battery and the balancing circuit. The balancing circuit can be configured to balance the current level sensed by the current sensor of each electric vehicle battery module. | 06-26-2014 |
20140247014 | STORAGE BATTERY SYSTEM AND METHOD OF CONTROLLING THE SAME - A storage battery system includes: electric storage units; and DC-DC converters each provided between one of the electric storage units and a DC bus. Each of the DC-DC converters includes: a voltage sensor for detecting a voltage value at a connection point between the DC bus and the DC-DC converter; a second obtainment unit which obtains voltage values detected by the voltage sensors of the other DC-DC converters; and a control unit which, when a difference value between a statistic of the voltage values obtained by the second obtainment unit and the voltage value detected by the voltage sensor is not less than a predetermined threshold value, changes the voltage value detected by the voltage sensor, and controls an amount of charge in and an amount of discharge from a corresponding one of the electric storage units to approximate the changed voltage value to a predetermined target value. | 09-04-2014 |
20140253040 | PREVENTIVE BALANCING TECHNIQUE FOR BATTERY PACKS IN PORTABLE ELECTRONIC DEVICES - The disclosed embodiments provide a system that manages use of a battery pack in a portable electronic device. During operation, the system detects a characteristic of a battery bank in the battery pack that is associated with a gradual imbalance in the battery pack. Next, the system manages use of the battery pack based on the characteristic to prevent the gradual imbalance in the battery pack. | 09-11-2014 |
20140312846 | Time-Controlled Charge Balancing in Battery Systems - A method for charge balancing of battery cells to be connected in parallel of a battery module includes making contact with terminals of the battery cells and measuring quiescent voltages of the battery cells; determining capacitances and internal resistances of the battery cells for determining a required duration for the charge balancing; and short-circuiting the battery cells in pairs at a low resistance and implementing the charge balancing via the internal resistances of the battery cells short-circuited in pairs. The method further includes ending the contact-making after the required duration; and producing a parallel circuit between the battery cells by fastening connecting lugs on respective terminals of the battery cells. | 10-23-2014 |
20150035492 | ADJUSTING DEVICE, BATTERY PACK, AND ADJUSTING METHOD - An adjusting device that is connected to a load and to a plurality of storage battery units that are connected together in parallel and that adjusts voltage differences among the plurality of storage battery units includes: for each of the storage battery units, a switch that is provided between a storage battery unit and the load that is turned ON during detection intervals for detecting current from the storage battery unit, a detection means that detects the current supplied from each of the storage battery units during the detection interval, and an adjusting means that, based on the detection results of the detection means, controls the ON/OFF states of switches during the adjustment intervals for adjusting voltage differences such that the voltage differences among the plurality of storage battery units are decreased. | 02-05-2015 |
20150042284 | CONTROL APPARATUS FOR VEHICLE BATTERY AND CONTROL METHOD FOR VEHICLE BATTERY - A control apparatus for a vehicle battery having a first battery and a second battery connected in parallel is provided. Each of the first and second batteries is provided with a relay operating between an allowing state in which charge from the power supply section is allowed and in a non-allowing state in which the charge is not allowed. The control apparatus includes a controller performing charge processing in which, when a voltage difference exists between the first battery and the second battery, the relay provided for one of the batteries having a lower voltage is set at the allowing state to charge only the one of the batteries, and when the charge causes the voltage of the one of the batteries to be equal to the voltage of the other of the batteries, both the relays provided for the one and the other of the batteries are set at the allowing state to charge the one and the other of the batteries. | 02-12-2015 |
20150048795 | CHARGE CONTROL APPARATUS AND CHARGE CONTROL METHOD - A charge control apparatus which includes charger | 02-19-2015 |
20150077061 | REGULATING DEVICE, BATTERY ASSEMBLY DEVICE AND REGULATING METHOD - A regulating device includes: a generating means for generating an output voltage from an input voltage; a plurality of first switches, respectively corresponding to the plural storage battery units connected in parallel, with each of said first switches interposed between the corresponding storage battery unit and the input side of the generating means; a plurality of second switches, respectively corresponding to the plural storage battery units, with each of said second switches interposed between the corresponding storage battery unit and the output side of the generating means; a detecting means for detecting the voltage of each of the plural storage battery units; and, a control means that, referring to the result of detection from the detecting means, identifies first storage battery units whose voltages are higher than the average value of voltage of the plural storage battery units and second storage battery units whose voltages are lower than the average value, from the plural storage battery units, and turns on the first control switches corresponding to the first storage battery units from among the plural first switches and the second control switches corresponding to the second storage battery units from among the second switches. | 03-19-2015 |
20150084594 | BATTERY POWER SYSTEM HAVING HIGH WORKING STABILITY - A battery power system includes a number of battery modules. Each battery module includes a number of battery cells, a management circuit positioned at a first side of the battery module, and a heat source positioned at a second side of the battery module and opposite to the first side. The management circuit is electrically connected to and manages charging and discharging of the cells of the corresponding battery module. The heat source is thermally coupled to the cells of the corresponding battery module and dissipates heat generated by the cells of the corresponding battery module. The battery modules are arranged in two lines, and the first sides of the battery modules in one line are positioned adjacent to and face the first sides of the battery modules in another line. | 03-26-2015 |
20150295425 | ENERGY STORAGE SYSTEM BALANCING DEVICE - An energy storage system balancing device arranged to perform balance processing of charge states of a plurality of energy storage systems being disconnected from each other and from external loads is provided. Each of the storage systems is divided into a plurality of cells and at least one equalization device, is arranged, in each storage system for balancing the cells within the system. The balancing device is arranged to at least collect information about voltage of at least one cell in each storage system from the equalization device/-s and determine a balancing status of the storage systems on the basis of the collected information. The balancing device is further arranged to determine a target cell voltage in dependency of the balancing status and provide the target voltage to each equalization device to control the balancing of the cells. | 10-15-2015 |
20150295432 | BATTERY SYSTEM - A battery system includes a plurality of battery packs connected in parallel each including a switch and a battery connected to the switch in series and a battery state determining unit determining a state of the battery. The battery state determining unit includes a disconnection determining unit controlling disconnection of the switch and a switch controller controlling open and close of the switch in accordance with a result of determining the state. The disconnection determining unit calculates allowable stop and demanded stop periods of the battery packs on the basis of the past data, season data, and allowable currents of the batteries and transmits data to the switch controller when the demanded stop period is smaller than the allowable stop period, and the switch controller makes the switch in an open state. | 10-15-2015 |
20150329007 | POWER SUPPLY CONTROL DEVICE - A power supply control device includes: a generator driven by an engine; a lead acid battery and a lithium ion battery connected in parallel to the generator; an SOC detector that detects SOC of the lead acid battery; and a charge controller that controls charging of the lead acid battery. The charge controller performs the charge control based on a regenerative predictive amount estimated according to vehicle state information when the SOC is greater than a threshold SL | 11-19-2015 |
20150338466 | POWER MANAGEMENT SCHEME FOR SEPARATELY AND ACCURATELY MEASURING BATTERY INFORMATION OF EACH OF MULTIPLE BATTERIES - A power management apparatus used in a system comprising multiple batteries includes an ADC measurement circuit and a processing circuit. The ADC measurement circuit is configured for measuring or detecting a plurality of voltage levels for each of the multiple batteries. The processing circuit is configured for calculating a DC current for each of the batteries according to an internal resistance of each of the batteries and the detected voltage levels, and for estimating an internal voltage level for each of the batteries according to the calculated DC current. | 11-26-2015 |
20160036255 | METHOD AND DEVICE FOR FAST-CHARGING OF RECHARGEABLE BATTERIES - A system and method for fast charging of a lithium-ion battery, including: continuously monitoring a state of charge (SOC) of the lithium-ion battery; during a normal mode of operation and upon detecting that the battery is at the predetermined low charge level, discontinuing the discharge; upon detecting that the battery is connected to a charger, providing charging rate of at least 4C for at least part of charging; and upon detecting that the battery, while connected to the charger is at the predetermined high charge level, discontinue the charging, wherein the predetermined low charge level and the predetermined high charge level define a consumable capacity of the battery, wherein the consumable capacity is below 50% of the full capacity of the battery. | 02-04-2016 |
20160056656 | CIRCUITS AND METHODS FOR USING PARALLEL SEPARATE BATTERY CELLS - Circuits and methods allowing virtually any number of batteries to be connected in parallel without the supply voltage being substantially reduced, while allowing their capacities to add directly as well as increasing the current capability of the batteries by placing the batteries' internal resistances in parallel | 02-25-2016 |
20160094056 | BATTERY MODULE SHORT CIRCUIT PROTECTION - The present disclosure includes an automotive battery system including a first battery that couples to an electrical system. Additionally, the first battery includes a first battery chemistry. Further, the automotive battery system includes a second battery coupled in parallel with the first battery and couples to the electrical system. Furthermore, the automotive battery system includes a first switch coupled to a positive terminal of the second battery, which electrically couples or decouples the second battery to or from the electrical system. Moreover, the automotive battery system includes a battery control unit that detects a short circuit condition of the first battery, the second battery, or both and decouples the second battery from the electrical system by opening the first switch upon detecting the short circuit condition. | 03-31-2016 |
20160094065 | BATTERY PROTECTION CIRCUIT AND DEVICE, BATTERY PACK, AND BATTERY PROTECTION METHOD - A battery protection circuit that protects a rechargeable battery including cells connected in parallel includes an overcharging detection part provided for each of the cells and configured to prevent the corresponding cell from being charged in response to detecting overcharging of the corresponding cell, an overdischarge detection part provided for each of the cells and configured to prevent the corresponding cell from being discharged in response to detecting overdischarge of the corresponding cell, a charging current limiting part provided for each of the cells and configured to prevent a charging current from exceeding a predetermined charging current value during a period for which the charging current flows through the corresponding cell, and a discharge current limiting part provided for each of the cells and configured to prevent a discharge current from exceeding a predetermined discharge current value during a period for which the discharge current flows through the corresponding cell. | 03-31-2016 |
20160137093 | Electric Vehicle Battery Systems with Exchangeable Parallel Electric Vehicle Battery Modules - Systems and methods for electric vehicle battery systems with replaceable parallel electric vehicle battery modules are described herein. The electric vehicle battery system includes a plurality of electric vehicle battery modules connected in parallel. Each electric vehicle battery module includes a battery. Each electric vehicle battery module can also include a balancing circuit in electrical communication with a current path from the battery to an electric vehicle battery module output node. Each electric vehicle battery module also may have a current sensor in electromagnetic communication with the current path between the battery and the balancing circuit. The current sensor can be configured to sense a current level between the battery and the balancing circuit. The balancing circuit can be configured to balance the current level sensed by the current sensor of each electric vehicle battery module. | 05-19-2016 |
20160172888 | BATTERY PACK | 06-16-2016 |