Entries |
Document | Title | Date |
20080204030 | Battery tester with promotion feature - Battery maintenance equipment is provided for use in maintaining storage batteries. The battery maintenance equipment includes battery maintenance circuitry. A redemption code output is provided and configured to provide an output having a redeemable value in response to the battery maintenance circuitry. A method includes outputting a redemption code in response to usage of battery maintenance equipment. | 08-28-2008 |
20080231284 | Method and Device for Detdermining the Ageing of a Battery - Disclosed is a method for determining the ageing (SoH) of a battery ( | 09-25-2008 |
20080238431 | Apparatus for Detecting an Electrical Variable of a Rechargeable Battery, and Method for Producing Said Apparatus - An apparatus for detecting an electrical variable of a rechargeable battery and a method for producing said apparatus, has: a measuring element ( | 10-02-2008 |
20080246488 | Method and configuration for monitoring a vehicle battery - A method for monitoring a battery includes the steps of activating a power conservation mode of an electrical system of a motor vehicle, measuring a duration of activation of the power conservation mode of the electrical system, and measuring a quiescent voltage of a vehicle battery of the motor vehicle. A battery status is determined based on the duration of activation of the power conservation mode and based on the quiescent voltage of the vehicle battery. Information indicative of the battery status is provided such that the information is perceivable outside the motor vehicle. A flashing pattern of a light emitting diode may for example indicate the battery status. A motor vehicle having a battery monitoring configuration is also provided. | 10-09-2008 |
20080252297 | APPARATUS AND ELECTRONIC SYSTEM FOR A BICYCLE AND RELATED METHODS - In order to allow the cyclist to keep the state of the batteries under control during use of a bicycle equipped with an on-board electronic apparatus or during the recharging of the batteries, data is displayed to the cyclist relative to the batteries on the display device of the on-board electronic apparatus. | 10-16-2008 |
20080284443 | Method for scientific research - A method providing comprehensive information about the properties of a type of electrochemical batteries at all stages of batteries resource exhaustion at their utilization which (properties) are connected with the action of the corresponding (for this utilization) influence on the batteries is realized through acquisition of the experimental data that contains the comprehensive information about these properties, creation of the known and new relevant quantities (on the basis of the acquired experimental data and some relevant parameters of the batteries) that characterize these properties, and study of the functional behavior of the created relevant quantities. | 11-20-2008 |
20080290877 | Apparatus and Method of Testing for Battery - The present invention relates to an apparatus and method for testing batteries, which can prevent errors from occurring due to the tolerance of voltage sensors when the charged states of batteries are measured, and can charge a battery having a charged state deteriorated due to the difference in the resistance of each battery. The apparatus includes a voltage circuit for measuring voltages of N batteries. A resistance circuit decreases voltages of batteries, which are greater than a reference voltage. A connection switch unit selects any one of the N batteries. A divert change unit separates polarities of each battery and changes positions of an cathode and a anode of the battery depending on separated polarities. A selection switch unit selectively connects the cathode and anode of the battery to an cathode and a anode of the voltage circuit or the resistance circuit. | 11-27-2008 |
20080303527 | BATTERY SYSTEM AND MANAGEMENT METHOD - A system and method for monitoring the status of a system of battery strings is described. The system includes a current sensor for each of the battery strings, and a controller configured to compute the average current from the measured currents. The state of the battery system is determined as being fully charged, discharging or charging, and the individual battery string currents are compared with the average measured current to determine if the currents are within a threshold value. An alarm indication is provided when one or more of the currents exceeds a threshold difference. The system may provide a local indication of status and may also interface with a communications network to provide for remote monitoring. | 12-11-2008 |
20090001992 | 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. | 01-01-2009 |
20090039892 | ELECTRONIC APPARATUS AND BATTERY CHECK METHOD - The present invention provides an electronic apparatus which detects a remaining level of a battery used as a power supply, comprising a current detection unit configured to detect a current value flowing through a circuit of the electronic apparatus, a voltage detection unit configured to detect a voltage value of the battery, and a calculation unit configured to calculate a voltage value of the battery when a consumption current of the electronic apparatus is a predetermined consumption current, based on current values and voltage values detected by the current detection unit and the voltage detection unit, respectively, in a plurality of states different in the consumption current of the electronic apparatus. | 02-12-2009 |
20090045815 | METHOD AND APPARATUS FOR MANAGING POWER FLOW OF AN ELECTRIC POWER STORAGE DEVICE - An electrical power storage device provides power to crank an internal combustion engine. Thereafter available power from the electric power storage device to crank the engine again is continually updated. Remedial measures are invoked if the available power is less than a predetermined power threshold. | 02-19-2009 |
20090058423 | ELECTRONIC APPARATUS AND CONTROLLING METHOD FOR THE SAME - An electronic apparatus which is capable of correctly displaying the remaining usable time even if a discharged current of a battery pack is changed by an unexpected load due to an external apparatus connected. The electronic apparatus has a battery pack with a secondary battery mounted therein. A first remaining usable time of the electronic apparatus is calculated based on a consumed current of the electronic apparatus. A second remaining usable time of the electronic apparatus is calculated based on a discharged current of the secondary battery. The first remaining usable time calculated by the first remaining usable time calculating unit or the second remaining usable time calculated by the second remaining usable time calculating unit, whichever is smaller, is selected, and then a displaying unit displays the selected remaining usable time. | 03-05-2009 |
20090066338 | Battery Voltage Detecting Circuit - A battery voltage detecting circuit includes: a first capacitor having one end connected to one input terminal of an operational amplifier; a second capacitor having one end connected to an output terminal of the operational amplifier and the other end connected to the one input terminal of the operational amplifier; a third capacitor having one end connected to the other input terminal of the operational amplifier; a fourth capacitor having one end applied with a reference voltage and the other end connected to the other input terminal of the operational amplifier; and a switching circuit configured to electrically connect the one input terminal of the operational amplifier to the one end of the first capacitor after the transient current has stopped flowing. | 03-12-2009 |
20090085571 | 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. | 04-02-2009 |
20090128157 | Abnormality Determination Device of Power Supply and Abnormality Determination Method Thereof - A power supply having a battery ( | 05-21-2009 |
20090140742 | 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. | 06-04-2009 |
20090140743 | CELL VOLTAGE DETECTING APPARATUS - The present invention provides an easy to produce cell voltage detecting apparatus using a semiconductor having low voltage endurance. In the cell voltage detecting apparatus, cell modules B | 06-04-2009 |
20090146663 | Battery testing device and battery testing method - The present invention provides a battery testing device and a battery testing method which can appropriately verify the behavior of a battery when damage occurs. Appropriately verification of battery behavior in a case of battery damage has not been achieved since a completely crushed state of a battery almost never occurs during the sue of a portable device, such as a portable telephone, and a completely crushed state of a battery is not the worst condition when determining an abnormality induced by an internal short. Therefore a secondary battery set on a test stand is partially crushed using a pressing member, and the quality of the secondary battery is determined by measuring the temperature of the secondary battery, whereby battery behavior when the secondary battery is damaged can be appropriately verified. | 06-11-2009 |
20090160451 | 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. | 06-25-2009 |
20090174410 | METHOD AND APPARATUS FOR CONTROLLING BATTERY - An apparatus for controlling a battery includes a capacitor for charging a voltage when the apparatus is on and discharging a voltage when the apparatus is off, a discharging circuit for discharging the voltage charged in the capacitor; a first switching unit for connecting or disconnecting the capacitor to/from a predetermined power source for the purpose of charging of the capacitor; a second switching unit for connecting or disconnecting the capacitor to/from the discharging unit; a voltage measuring unit for measuring a voltage charged in the capacitor; and a controller for calculating a power-off duration time according to the measured voltage. This apparatus may continuously calculate a power-off duration time of a battery pack. | 07-09-2009 |
20090189613 | 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. | 07-30-2009 |
20090195252 | Battery Sensor Unit and Method for Manufacturing the Battery Sensor Unit - A method is described for manufacturing a battery sensor unit, in particular a battery sensor unit for a motor vehicle battery, comprising a cable holder for a cable end of a cable. The method includes sliding a sleeve composed of a resistor material onto the cable end, at least one first measuring tap being installed between the cable end and an inner circumference of the sleeve. The cable end provided with the sleeve and the measuring tap is inserted into the cable holder and is permanently connected thereto to form a measuring device. A battery sensor unit is described having a fastening device for fastening the battery sensor unit to a contact of a battery, in particular a motor vehicle battery, and having a measuring device for detecting the state of the battery. The measuring device includes a cable end of a cable, a sleeve that is composed of a resistor material and encloses the cable end, at least one first measuring tap, which is installed between an inner circumference of the sleeve and the cable end, and a cable holder which accommodates the sleeve in a permanent connection. | 08-06-2009 |
20090206841 | INTELLIGENT FAULT-TOLERANT BATTERY MANAGEMENT SYSTEM - A battery pack monitoring system for monitoring a plurality of battery modules within a battery pack. Primary monitoring circuits are coupled to monitor respective battery modules and have circuitry to output measurement values that correspond to the respective battery modules. At least one standby monitoring circuit is coupled to monitor at least one of the battery modules and includes circuitry to output a first measurement value that corresponds to the battery module. A pack controller selectively applies, in a determination of battery pack status, either the first measurement value from the standby monitoring circuit or a second measurement value from one of the primary monitoring circuits. | 08-20-2009 |
20090212779 | Battery Sensor Unit - A battery sensor unit having a fastening device for fastening the battery sensor unit to a contact of a battery, in particular a motor vehicle battery, and having a measuring section for acquiring the state of the battery, the measuring section and the fastening device being combined to form an integral assembly. The measuring section is fashioned in the shape of a cylinder. In addition, a method for connecting the fastening device of the battery sensor unit to the cylindrically fashioned measuring section is described. | 08-27-2009 |
20090212780 | DIELECTRIC BREAKDOWN DETECTOR FOR HEV BATTERY APPLICATION - A circuit that indicates an impedance of a battery dielectric includes a signal generator module that flows a first current from a ground to a first terminal of a battery. A sensor circuit generates a signal based on a second current that flows from a second terminal of the battery through a resistance to ground. The second current includes the first current and a third current that flows to ground via an impedance presented by a battery dielectric housing. A signal conversion module generates an output signal based on the signal. The output signal represents the impedance presented by the battery dielectric housing. | 08-27-2009 |
20090212781 | SYSTEM FOR AUTOMATICALLY GATHERING BATTERY INFORMATION - A method that includes affixing a radio frequency identification tag on a storage battery at a battery manufacturing plant. The method also includes storing battery manufacturing information into the radio frequency identification tag at the battery manufacturing plant. The battery manufacturing information includes a battery algorithm suitable for use in testing the storage battery. | 08-27-2009 |
20090224769 | Multi-Series Battery Control System - A multi-series battery control system comprises a plurality of unit battery cell of which unit consists of multiple battery cells connected in series; a plurality of control IC comprising a control circuit for controlling the unit battery cell, a main controller that sends and receives signal to/from the control ICs via an insulation; means for sending an abnormality signal, which represents the existence or the absence of abnormality of the control ICs or the battery cells, to the main controller from the control ICs, responding to the first signal outputted from the main controller via the insulation; and means for searching contents of the abnormality in the control ICs or the battery cells and sending the abnormality contents signal based on the search, to the main controller from the control ICs, responding to the second signal outputted from the main controller via the insulation. | 09-10-2009 |
20090237085 | VOLTAGE DETECTION CIRCUIT - A voltage detection circuit | 09-24-2009 |
20090243621 | Assembled Battery Total Voltage Detection Circuit - An assembled battery total voltage detection circuit includes a main control circuit, a divider resistor connected between a plus terminal and a minus terminal of an assembled battery insulated from the main control circuit, and a differential amplifier circuit that amplifies voltage divided by the divider resistor. A constant electric potential relative to a ground of the main control circuit is applied to a midpoint of the divider resistor. The main control circuit measures the voltage divided by the divider resistor via the differential amplifier circuit. | 10-01-2009 |
20090251149 | BATTERY TESTER - A battery tester engages a power tool battery and includes a housing having a cavity for receiving a stem of the power tool battery. The battery tester has a plurality of electrically conductive contacts disposed in the cavity and is configured to engage corresponding battery electrodes on the stem. A processor is mounted within the housing and communicates with the battery through the electrically conductive contacts. The processor measures a voltage level of the battery, and a loading circuit electrically loads the battery during measuring. One or more indicators are controlled by the processor. The processor activates the loading circuit for a predetermined period of time to measure a voltage level of the battery while under load, and then activates the indicators to provide a visual indication of remaining battery life. The battery tester is a stand-alone device where housing does not have a motor or a battery charger. | 10-08-2009 |
20090251150 | METHOD AND APPARATUS FOR MEASURING ELECTROCHEMICAL PROPERTIES - Apparatus for measuring electrochemical properties of materials, and methods of measuring electrochemical properties of materials, are provided. | 10-08-2009 |
20090251151 | METHOD FOR EVALUATING BATTERY, AND EVALUATION APPARATUS THEREFOR - A battery evaluation method includes: determining a weighting coefficient to be assigned to each of performance capabilities of a battery for each field of application where the battery is used; making amendments to results of measurement of the respective performance capabilities acquired from the battery by means of the weighting coefficient; summating the weighted results of the respective performance capabilities amended by the weighting coefficient for each field of application to compute an application-specific evaluation value; and evaluating the battery for each application based on the application-specific evaluation value. | 10-08-2009 |
20090261835 | EVALUATION METHOD OF SEPARATOR FOR NONAQUEOUS ELECTROLYTE BATTERY, AND NONAQUEOUS ELECTROLYTE BATTERY - The evaluation method of a separator for a nonaqueous electrolyte battery according to the present invention includes: placing opposite an upper jig | 10-22-2009 |
20090267609 | Battery Connection Detecting Device and Image Forming Apparatus Including the Same - A battery connection detecting device includes a connecting unit, to which a battery is connected, a voltage detecting unit that detects a voltage value of the connecting unit, the voltage value detected by the voltage detecting unit being a detection voltage value, a switching unit that switches supply of charging power to the battery connected to the connecting unit based on the detection voltage value, and a connection detecting unit that compares at least one predetermined voltage value with at least one of the detection voltage value before the switching unit switches the supply of the charging power and the detection voltage value after the switching unit switches the supply of the charging power in order to detect whether or not the battery is connected to the connecting unit. | 10-29-2009 |
20090278545 | VOLTAGE MEASUREMENT OF HIGH VOLTAGE BATTERIES FOR HYBRID AND ELECTRIC VEHICLES - A system for accurate voltage measurement of a high voltage battery for hybrid and electric vehicles includes a voltage measurement circuit including an analog sensing circuit, a wave generator circuit and a comparator. The analog sensing circuit senses the analog voltage of the high voltage battery. The wave generator circuit generates an analog periodic signal. The comparator receives the sensed analog voltage and the analog periodic signal from the wave generator circuit. The comparator produces an output signal based on the comparison of the inputs, and the output signal takes the form of a digital periodic signal indicative of the voltage of the high voltage battery. | 11-12-2009 |
20090295395 | STORAGE BATTERY AND BATTERY TESTER - A storage battery is provided which has a first and second post for electrically coupling to an electrical system. A test plug is provided for use in coupling the storage battery to an electronic battery tester. In another aspect, a battery tester is provided having a plug configured to couple to a test plug of a storage battery for use in performing an electronic battery test on the storage battery. | 12-03-2009 |
20090295396 | Assembled battery monitoring apparatus, method for detecting wiring disconnection of assembled battery, and assembled battery system - An assembled battery monitoring device that detects presence of disconnection in wiring pulled from an assembled battery in which a plurality of electric cells are connected in series. The electric cells are connected respectively in parallel to auxiliary current channels each having a setting resistance value, and the presence of the disconnection in the wiring is detected based on a detection voltage when the switching device for auxiliary current channel is turned to the closed state. | 12-03-2009 |
20090315564 | LOW COST CURRENT AND TEMPERATURE SENSOR - A battery health or prognosis system may employ a ferrite disc embedded in a printed wiring board (PWB) to perform both a battery current sensing role and a temperature sensing role. The ferrite disc may be surrounded with a coil that may be comprised of surface conductors and electrically conductive vias of the PWB. Excursions of coil current may be produced to generate observable hysterisis loops in the ferrite disc. The generated hysterisis loops may be compared to a temperature-dependent family of hysterisis loops for the magnetic material from which the ferrite disc is constructed. A processor mounted on the PWB may collect and process outputs from a Hall-effect sensor to develop both temperature and battery current information to produce a prognosis for the battery. | 12-24-2009 |
20100013489 | ELECTRONIC BATTERY TESTER - An electronic battery tester for testing a storage battery includes test circuitry configured to provide an output based upon a selected test criteria. | 01-21-2010 |
20100026306 | METHOD AND APPARATUS FOR TELEMATICS-BASED VEHICLE NO-START PROGNOSIS - A system and method for determining the status of a vehicle battery to determine whether the battery may not have enough charge to start the vehicle. The method includes collecting data relating to the battery on the vehicle and collecting data relating to the battery at a remote back-office. Both the vehicle and the remote data center determine battery characteristics based on the collected data and the likelihood of a vehicle no-start condition, where the algorithm used at the remote back-office may be more sophisticated. The data collected at the remote back-office may include vehicle battery information transmitted wirelessly from the vehicle, and other information, such as temperature, battery reliability, miles that the vehicle has driven per day, ambient temperature, high content vehicle, etc. Both the vehicle and the remote back-office may determine the battery open circuit voltage. | 02-04-2010 |
20100026307 | METHODS FOR PREDICTING THE FUTURE PERFORMANCE OF FUEL CELL STACKS AND INDIVIDUAL FUEL CELLS - Method embodiments for analyzing the future performance of a fuel cell stack comprise the steps of: a) generating a first polarization curve data by experimentally measuring the voltage of a fuel cell stack across a current range at a first interval; b) dividing the current range into a plurality of discrete current ranges; c) calculate an average voltage value for each discrete current range; d) fitting all average voltage values to produce a first average polarization curve; e) conducting steps a) through d) at a second interval to produce a second average polarization curve; f) comparing the first average polarization curve to the second polarization curve to calculate the drop in voltage and thereby the fuel cell stack degradation; and g) utilizing the calculated drop in voltage between the first and second polarization curves to predict the polarization of the fuel cells at future time intervals. | 02-04-2010 |
20100073003 | BATTERY INFORMATION ACQUIRING APPARATUS - A battery information acquiring apparatus includes a voltage acquiring unit which acquires an inter-terminal voltage of the battery cell; a battery information acquiring circuit which acquires battery information of the battery cell with the acquired voltage being supplied as a first power supply voltage and; a radio circuit which transmits a signal of the battery information to the management unit via the antenna with the acquired voltage being supplied as a second power supply voltage and; a rectification circuit which receives a radio signal from the management unit via the antenna, rectify the received radio signal and generate a DC voltage; and a control circuit which controls supply of the first and second power supply voltages to the battery information acquiring circuit and the radio circuit wherein the control circuit operates with the generated DC voltage being supplied as a third power supply voltage. | 03-25-2010 |
20100073004 | Voltage detecting circuit - A voltage detecting circuit includes a switch group that selects any one of a plurality of battery cells connected in series, a sampling capacitor that maintains a potential difference between a positive electrode terminal and a negative electrode terminal of a battery cell selected by the switch group, a measuring part that outputs a detected voltage value signal corresponding to the potential difference between ends of the sampling capacitor, a transfer switch that transfers, to the measuring part, the potential difference caused between the ends of the sampling capacitor, a correction capacitor provided in parallel to input terminals of the measuring part, and between the transfer switch and the measuring part, and a discharge switch provided in parallel to the correction capacitor, and controlled so that a switching condition of the discharge switch is mutually exclusive with that of the transfer switch. | 03-25-2010 |
20100090702 | IN SITU BATTERY TESTER - A battery tester is described that can measure the life of a battery without requiring direct access to or removal of the battery from the musical instrument or effects box in which the battery is installed. | 04-15-2010 |
20100188091 | ELECTRONIC BATTERY TESTER - An electronic battery tester for testing a storage battery includes test circuitry configured to provide an output based upon a selected test criteria. Additionally, circuitry is provided to assist in balancing batteries used in a string of multiple batteries. | 07-29-2010 |
20100219836 | METHOD AND ARRANGEMENT FOR DETERMINING ENERGY SOURCE UNIT STATUS - A method performed by an electronic device may determine a status of an energy source unit indicating performance of the energy source unit residing in the electronic device. The method may include performing a measurement over the energy source unit to produce a measured value that may be compared with a predetermined value, to generate a difference value, and the status of the energy source unit may determined based on the difference value. | 09-02-2010 |
20100225325 | Battery System and Method for System State of Charge Determination - A battery system and method of providing a state of charge of for the system in one embodiment includes at least one first cell, the at least one first cell having a first battery chemistry exhibiting a first open circuit potential, and at least one second cell in series connection with the at least one first cell, the at least one second cell having a second battery chemistry exhibiting a second open circuit potential, wherein the at least one first cell exhibits an open circuit potential with a center slope that is greater than the center slope of the open circuit potential exhibited by the at least one second cell. | 09-09-2010 |
20100253356 | FUEL CELL MEASUREMENT APPARATUS - A fuel cell measurement apparatus capable of measuring electric characteristics of a solid oxide fuel cell is provided. The fuel cell measurement apparatus comprises a first current collecting unit, a second current collecting unit, a top holding set, a bottom holding set and an adjustable elastic load set. The solid oxide fuel cell is clipped by the first current collecting unit fixed by the top holding set and the second collection unit fixed by the bottom holding set. The adjustable elastic load set is capable of adjusting the tension between the top holding set and the bottom holding set. The first (second) current collecting unit comprises a first (second) conductive mesh and a first (second) porous plate having a first (second) through hole and a first (second) gas channel communicating with each other, wherein the first (second) conductive mesh is sintered on the first (second) porous plate. | 10-07-2010 |
20100264929 | LIFETIME ESTIMATING METHOD AND DETERIORATION SUPPRESSING METHOD FOR RECHARGEABLE LITHIUM BATTERY, LIFETIME ESTIMATING APPARATUS, DETERIORATION SUPPRESSOR, AND BATTERY PACK AND CHARGER USING THE SAME - In a lifetime estimating method for a rechargeable lithium battery, the open circuit voltages of the rechargeable lithium battery after discharging for at least two different charge/discharge cycle numbers are detected while charge/discharge cycles go on. Next, at least the two of the voltage values are plotted for respective cycle numbers, and a circular arc passing the plotted points is drawn. Furthermore, the lifetime of the rechargeable lithium battery is estimated based on a size of the circular arc. The progression of deterioration can be suppressed by controlling the charge and discharge of the rechargeable lithium battery based on the lifetime estimation. | 10-21-2010 |
20100289497 | Multi-Cell Power System Controller - Various apparatuses and methods for detecting cell connection status of a multi-cell battery are disclosed herein. For example, some embodiments provide an apparatus for detecting cell connection status of a multi-cell battery. The apparatus includes a battery cell input for each cell, a cell connection status detector for each cell, and at least one comparator. Each of the cell connection status detectors is connected to a battery cell input and has a current-based status indicator output. The at least one comparator is connected to the current-based status indicator outputs. Each of the plurality of cell connection status detectors floats in a different supply voltage range. The at least one comparator is referenced to a lower voltage potential than at least one of the plurality of cell connection status detectors. | 11-18-2010 |
20100289498 | BATTERY TESTER WITH PROMOTION FEATURE - Battery maintenance equipment is provided for use in maintaining storage batteries. The battery maintenance equipment includes battery maintenance circuitry. A redemption code output is provided and configured to provide an output having a redeemable value in response to the battery maintenance circuitry. A method includes outputting a redemption code in response to usage of battery maintenance equipment. | 11-18-2010 |
20100295549 | 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. | 11-25-2010 |
20100315089 | SYSTEM AND METHOD FOR BATTERY CHARGER SELF TEST AND DIAGNOSTIC MEANS - A self diagnostic battery charging system may include a battery charger and a diagnostic module having a power supply separate from the battery charger. Additionally, a method may include executing a diagnostic program and indicating a result from the diagnostic program. | 12-16-2010 |
20110001484 | SENSOR IN BATTERY - Systems and method for providing sensors in batteries are provided. In certain aspects of the disclosure, a battery comprises a housing dimensioned to fit within a battery compartment of the communication device, a battery cell configured to supply power to the communication device, one or more sensors within the housing configured to measure a condition external to the battery and to received power from the battery cell, and an interface configured to interface the one or more sensors with a processing system in the communication device. | 01-06-2011 |
20110031974 | Method and System to Measure Series-Connected Cell Voltages using a Flying Capacitor - A method and system for measuring voltage of individual cells connected in series includes a pair of busses connectable to the cells and a flying capacitor connectable to the busses. The capacitor stores the charge of one of the cells such that an analog-to-digital converter (ADC) connected to the capacitor may process an accurate representation of the voltage of the cell being measured. In order to prevent electrical interference with the capacitor and the ADC, the charge on the busses is reduced prior to measurement by the ADC | 02-10-2011 |
20110050235 | ELECTROCHEMICAL CELL - An electrochemical cell is provided. The electrochemical cell comprises a cathode compartment, wherein a metal in a solid form is disposed in the cathode compartment. The electrochemical cell further comprises a separator, an anode compartment, and at least one contact device disposed in the cathode compartment or in the anode compartment. The contact device is suspended from the top of the electrochemical cell in the cathode compartment or in the anode compartment. The electrochemical cell is in a ground state. An electrochemical cell during its working is also provided. Methods for using and manufacturing the electrochemical cell are also provided. The electrochemical cell is used to determine a state-of-charge of a source. | 03-03-2011 |
20110050236 | STATE MONITORING UNIT FOR ASSEMBLED BATTERY - A state monitoring unit monitors a state of an assembled battery in which unit cells are connected in series. The state monitoring unit includes a plurality of voltage monitoring devices and a controller. The controller transmits a common voltage measurement command to the voltage monitoring devices connected in a daisy-chain scheme. Each of the voltage monitoring devices measures the voltage of the corresponding unit cells in response to the command that is received from the controller or the adjacent voltage monitoring device at a leading end of the communication channel, and transmits the command to the adjacent voltage monitoring device at a termination of the communication channel. When received the measured voltage from the adjacent voltage monitoring device at the termination, the voltage monitoring device transmits it with the own measured voltage. The controller determines the abnormality in reception state based on the number of received, measured voltages. | 03-03-2011 |
20110057658 | BATTERY SYSTEM WITH A CURRENT DETECTION CIRCUIT - The battery system has a current detection circuit | 03-10-2011 |
20110068799 | ACTIVATING BATTERIES BASED ON ENVIRONMENTAL CONDITIONS - A system measures a temperature condition of a component of a mobile communication device, determines a battery of the mobile communication device based on the measured temperature condition, activates the determined battery, activates a temperature management device connected to the battery, and manages the measured temperature condition of the component with the temperature management device. | 03-24-2011 |
20110068800 | INTERNAL SHORT CIRCUIT EVALUATION APPARATUS FOR BATTERY - The present invention relates to an apparatus for evaluating an internal short circuit of a battery. An object of the invention is to provide an apparatus capable of evaluating whether or not an internal short circuit has occurred in an electrode group in consideration of pressure applied to the electrode group. An internal short circuit evaluation apparatus according to one embodiment of the invention includes at least a pressure member capable of operating independently and applying pressure to at least a predetermined position of the surface of the electrode group, and a short-circuiting member that is pressed into the predetermined position. An internal short circuit evaluation apparatus according to another embodiment of the invention includes a pressure member having an integrated short-circuiting member. | 03-24-2011 |
20110074430 | METHOD FOR EVALUATING SECONDARY BATTERY - A method for evaluating a secondary battery includes repeatedly performing: an open circuit voltage measurement step of measuring the open circuit voltage of the secondary battery to be evaluated at each of a plurality of temperatures; a potential change measurement step of measuring, after the open circuit voltage measurement step, the potential change in the secondary battery while changing the state of charge of the secondary battery; and an equilibrium potential measurement step of measuring the equilibrium potential of the secondary battery after the potential change measurement step. An entropy variation in each of the different states of charge is calculated based on the open circuit voltages at the plurality of temperatures measured in the state of charge, and a chemical diffusion coefficient in each of the different states of charge is calculated based on the equilibrium potential of the secondary battery and the potential change in the secondary battery both measured in the state of charge. The secondary battery is evaluated based on the entropy variations and the chemical diffusion coefficients in the different states of charge. | 03-31-2011 |
20110074431 | CIRCUITS AND METHODS FOR MEASURING CELL VOLTAGES IN BATTERY PACKS - A circuit used to measure cell voltages in a battery pack can include a cell voltage level shifter, a sense block, and a compensation current generator. The cell voltage level shifter selects a cell and shifts the terminal voltages of the selected cell from a first voltage level to a second voltage level. The sense block monitors the current consumed by the level shifter, and generates a signal indicative of the consumed current. The compensation current generator generates compensation currents to compensate the current consumed by the level shifter. Therefore, unbalance of the cell capacities caused by the current consumed by the level shifter can be reduced or eliminated, and thus the overall capacity of the battery pack can be improved. | 03-31-2011 |
20110074432 | METHODS AND APPARATUS FOR BATTERY TESTING - Methods and apparatus for testing electrical storage batteries monitor magnetic susceptibility of components of the storage batteries. In some embodiments, magnetic susceptibility of a plate in a lead-acid battery is determined to provide an indication of the state of charge of the battery. | 03-31-2011 |
20110128006 | Method and apparatus for detecting battery life - A system and method for determining life of a rechargeable battery. Data representing relationship between lasting time of the battery and equivalent number of life cycles of the battery is provided; lasting time of the battery in charging is obtained; and the life of the battery is determined utilizing the obtained lasting time and the data provided. | 06-02-2011 |
20110163752 | Apparatuses and Methods for Determining Potential Energy Stored in an Electrochemical Cell - A battery includes a first terminal, a second terminal, an outer layer, and a power indicator apparatus. The power indicator apparatus comprises an electrical conductor and a mechanical switch. The electrical conductor is configured to be in continuous electrical communication with the first terminal. The mechanical switch is configured to be actuated by an application of pressure at a single location, and upon actuation, to place the electrical conductor in electrical communication with the second terminal such that the power indication apparatus can facilitate a reading of a potential energy stored in the battery. Methods of determining a potential energy stored in the battery are also provided herein. | 07-07-2011 |
20110187377 | Battery Charger Tester With Individual Cell Temperature Measurement - A method and apparatus for sensing the temperature of each individual cell of a battery during the testing and charging. The method and apparatus can monitor the temperature of the cells of the battery, the charger or both. Additionally, a user can be notified when the temperature is at or exceeds a predetermined level. The temperature data is also used to aid in efficiently charging the battery and determining of the battery is defective. | 08-04-2011 |
20110199091 | CURRENT SENSOR - A current sensor, which senses current passing through a harness via a terminal of a battery, includes a fixed part to which the harness is fixed, a resistor which is inserted between the terminal and the fixed part, a circuit board which measures current passing through the resistor based on a potential difference between two positions along the direction in which current is passed through the resistor, and a case which accommodates the resistor and the circuit board. The circuit board includes a plurality of amplifiers which amplify potential difference between the two positions, an analog-digital converter which converts output voltages of the amplifiers into digital data of a predetermined number of bits, and a current measuring/processing unit which measures current passing through the resistor based on the digital data outputted from the analog-digital converter. | 08-18-2011 |
20110215810 | VOLTAGE MONITORING SYSTEM, VOLTAGE MONITORING DEVICE, AND METHOD OF SETTING INFORMATION - A voltage monitoring system includes a plurality of voltage monitoring devices connected to each other in series for monitoring a voltage of each of battery units obtained by dividing per specific number a plurality of batteries connected in series. Each of the voltage monitoring devices includes a reception unit for receiving specific information transmitted from a former stage; a storage unit for storing the specific information received with the reception unit as self specific information; and a transmission unit for adding predetermined information to the specific information received with the reception unit, and for transmitting the specific information to a later stage as later stage specific information. | 09-08-2011 |
20110248719 | Electrical Storage Module - An electrical storage module includes: a plurality of electrical storage units; electrical storage unit connecting conductors electrically connecting the plurality of electrical storage units; and a voltage detection line unit electrically connected to the plurality of electrical storage units for detecting a voltage of each of the plurality of the electrical storage units, wherein: the voltage detection line unit is unitized with the electrical storage unit connecting conductors, includes voltage detection lines for each detecting the voltage of one of the plurality of the electrical storage units, and is configured such that, when the electrical storage unit connecting conductors are mechanically connected to the plurality of electrical storage units, the voltage detection lines are electrically connected to the electrical storage units. | 10-13-2011 |
20110254558 | TESTING SYSTEM AND METHOD FOR TESTING A BATTERY CELL - A testing system and a method for testing a battery cell are provided. The system includes a nest member that receives the battery cell, and a clamping device that secures a first battery tab between first and second connectors, and secures a second battery tab between third and fourth connectors. The system further includes a voltmeter that measures a voltage level between the first and third connectors when the first and second battery tabs are contacting the first and third connectors, respectively. The system further includes an ohmeter that measures a first resistance level between a first portion of the outer housing and the first connector when the first battery tab is contacting the first connector. | 10-20-2011 |
20110260731 | BATTERY MODULE - The invention relates to a battery module, in particular for a motor vehicle, which includes a housing, at least one battery disposed in the housing, at least one inlet opening for introducing a tempering fluid into the housing, at least one outlet opening for discharging the tempering fluid from the housing, and at least one monitoring device for detecting a state of the at least one battery. According to the invention, the at least one inlet opening and the at least one outlet opening can be sealed by at least one closure element in the event of a disruption condition of the at least one battery, so that materials exiting the at least one battery, in particular gases, during the disruption state can not escape from the battery module. | 10-27-2011 |
20110267067 | ELECTRONIC BATTERY TESTER - An electronic battery tester for testing a storage battery including electrical connectors configured to couple to the storage battery. Measurement circuitry is coupled to the electrical connectors and a display is configured to display information to an operator. A manual input is configured to receive an input from a user. A microprocessor is coupled to the measurement circuitry and is configured to perform a battery test on the storage battery as a function of a battery parameter measured with the measurement circuitry. The microprocessor is configured to display characters and receive a character select input from the manual input which identifies one character of a plurality of characters displayed on the display. In another aspect, a forcing function is coupled to the battery and has first and second selectable frequencies. The microprocessor is configured to select between the first frequency and the second frequency. | 11-03-2011 |
20110279122 | METHOD, ELECTRIC CIRCUIT ARRANGEMENT AND ELECTRIC MEMORY UNIT FOR DETERMINING A CHARACTERISTIC STATUS PARAMETER OF THE MEMORY UNIT - The invention relates to a method for determining a characteristic status parameter of a memory unit via an electric circuit arrangement. In the circuit arrangement at least one inductive component and at least one capacitive component are arranged, forming a tuned circuit with the memory unit. The method has the following steps of energizing the tend circuit by temporary charging of the capacitive component, the energizing being carried out by an energizing device electrically supplied by the memory unit, and determining a time-dependent voltage change at the capacitive component after terminating the energizing and determining the characteristic status parameter from the time-dependence of the voltage change. The invention further relates to a corresponding electrical circuit arrangement and an electrical memory, including such a circuit arrangement. | 11-17-2011 |
20110298463 | BATTERY STATE MONITORING CIRCUIT AND BATTERY DEVICE - Provided are a battery state monitoring circuit and a battery device, in which, even when one secondary battery becomes an overcharged state or an overdischarged state and then a voltage detection circuit operates, power is not consumed in only the one secondary battery. The battery state monitoring circuit includes: a plurality of voltage detection circuits which are provided for a plurality of secondary batteries, respectively, for detecting voltages of the plurality of secondary batteries; and a current bypass circuit provided in each of the plurality of voltage detection circuits, for allowing an operation current of the each of the plurality of voltage detection circuits to flow into a ground terminal. Therefore, when only one secondary battery becomes an overcharged state or an overdischarged state, the battery device operates so that the power of all the secondary batteries is consumed to prevent voltages between the secondary batteries from being unbalanced. | 12-08-2011 |
20110309837 | CHUCK MECHANISM OF CHARGE/DISCHARGE TESTING DEVICE FOR FLAT-RECHARGEABLE BATTERIES - The present invention relates to a chuck mechanism of a charge/discharge testing device for flat-rechargeable batteries and has a proposition to provide a chuck mechanism that makes it possible to lighten conventionally needed troublesome works, that is, for example, works of storing and fixing a large number of flat-rechargeable batteries in a container, and that is capable of surely chucking the flat-rechargeable batteries (electrodes). The chuck mechanism includes a first guide couplable with a battery storage retaining a plurality of flat-rechargeable batteries arranged in parallel, and a plurality of chuck units continuously joined with the first guide and resiliently arranged in parallel, wherein the chuck units each have a second guide resiliently positioning each of the chuck units with a predetermined number of corresponding flat-rechargeable batteries in the battery storage. | 12-22-2011 |
20110316545 | Electronic Detection of Signatures - A method is described for retrieving, by a test system, a formation profile associated with the storage cell, the formation profile comprising one or more formation segments, with a formation segment comprising an action to be performed upon a detection of a signature value; measuring, by the test system, a value of a parameter of the formation segment; detecting, based on a comparison between the value of the parameter and one or more signatures associated with the formation segment, that the value of the parameter comprises the signature value; and performing the action specified in the formation segment. | 12-29-2011 |
20110316546 | Zero Insertion Force Scrubbing Contact - A contact assembly is described for testing a storage cell with a probe configured to flex in an outward direction, in response to a vertical application of force, to scrub a tab on the storage cell at a zero insertion force. The contact assembly comprises a contact structure configured to flex in an outward direction to scrub and to pierce a tab of the storage cell; a board, wherein a juxtaposition of the board to the contact structure defines an opening configured to receive the tab of the storage cell; and a device configured to move the contact structure, to a position in which the opening is closed, to cause the contact structure to scrub and to pierce the tab on the storage cell. | 12-29-2011 |
20120038364 | Circuit for Monitoring of Accumulator Cells Connected in Series - In one embodiment, a circuit includes a measuring circuit coupled to an accumulator cell. A first output of the measuring circuit outputs a current signal based on a cell voltage of the accumulator cell. The circuit includes an interface circuit coupled to the first output of the measuring circuit and a second output of a level-shifter circuit configured to change a voltage level on the first output at the interface circuit. The level-shifter circuit includes a first input coupled to the first output and one or more transistors coupled in series with one or more gate terminals that are each coupled to each of one or more terminals of the accumulator cell. | 02-16-2012 |
20120043967 | Ground Fault Detection Circuit, and Power Supply Device - A ground fault detection circuit according to the present invention is a ground fault detection circuit that detects the occurrence of a ground fault of a battery that is insulated, and that includes: an AC signal generation section that generates an AC signal; a first capacitive element that couples the AC signal generated by the AC signal generation section to the battery; a voltage division section that voltage divides the AC signal that is coupled to the battery by the first capacitive element; a ground fault detection unit that detects a ground fault of the battery based on an AC component of an input signal; and a second capacitive element that couples the AC signal that has been voltage divided by the voltage division section to the ground fault detection unit as the input signal. | 02-23-2012 |
20120074949 | BI-DIRECTIONAL DC/DC CONVERTER - A bi-directional DC/DC converter includes at least one module having a module input for providing a bi-directional module input current, and a module output with an output inductor for providing a bi-directional module output current. A transformer has a primary winding wound around a transformer core and connected to the module input, and a secondary winding wound around the core and connected to the module output. A primary set of switches is connected in an H-bridge configuration between the module input and the primary winding. And, a secondary set of switches is connected in an H-bridge configuration between the module output and the secondary winding. A current sensing component senses the module output current. A hysteretic control drives the primary set of switches to control flux. The hysteretic control drives the secondary set of switches to control the module output current as a function of the sensed module output current. | 03-29-2012 |
20120074950 | METHOD OF ESTIMATING TEMPERATURE OF BATTERY - The present invention relates to a temperature estimating method of a battery. A predetermined module of a battery is equipped with a temperature sensor and a current/voltage sensor(s). Whether the battery deteriorates can be determined by using the measured temperature, current, and voltage. | 03-29-2012 |
20120092018 | BATTERY PACK SAFETY AND THERMAL MANAGEMENT APPARATUS AND METHOD - A process of controlling the temperature of a battery pack includes the steps of determining the operating mode and present temperature of the battery pack. Optimal temperature for the battery pack depends on the operating mode and the difference between the present temperature and the previously identified optimal temperature. The battery pack is warmed if the temperature difference (measured minus optimal) is large. The optimal time interval over which the battery pack should be warmed is a function of the operating mode and the previously calculated temperature difference. A heater is switchably operated enabling and disabling the heat generating element to warm the pack to the previously identified Optimal temperature. | 04-19-2012 |
20120105066 | SELF-CORRECTING AMPLIFIER SYSTEM - DC offsets introduced in battery testing equipment are automatically compensated for using complementary current-mode servo feedback. An op amp receives and amplifies a response signal, while also introducing internal errors manifested in the amplified response signal. A correction circuitry coupled to receive the amplified response signal and comprising a balanced circuit with a positive input correction device and a negative input correction device to remove the DC bias. The correction circuitry further comprises an error sensing device to correct for the internal errors introduced by the op amp. | 05-03-2012 |
20120126818 | BATTERY STATUS DETECTION SENSOR - A battery condition detection sensor ( | 05-24-2012 |
20120139545 | VOLTAGE DETECTION DEVICE FOR ASSEMBLED BATTERY - An operational amplifier has an input biased at a predetermined reference voltage. A control unit opens both second switches and third switches corresponding to unit batteries being non-detection object, closes fourth switch. The control unit further closes both one of first switches and one of third switches corresponding to one unit battery being a detection object to charge corresponding one of first capacitors. Thereafter, the control unit opens the fourth switch. The control unit further closes one of the second switches corresponding to the one unit battery being the detection object, instead of the one of the first switches. Thus, the control unit detects a voltage of each of the unit batteries. | 06-07-2012 |
20120153960 | Negative Peak Voltage Detection for Enhanced FuelGauge Empty Voltage Prediction - Negative peak voltage detection for battery end of life estimations in fuel gauging is disclosed. Battery powered devices such cell phones and laptop computers create some noise in the form of negative excursions from the average output voltage of the battery which can cause the battery powered device to stop functioning. By negative peak detection relative to the average battery voltage, the end of life or discharged voltage condition can be altered in response to the negative peaks to obtain the maximum battery life without risk of the device inadvertently shutting down. Average output voltage of the battery may be taken as an estimated open circuit voltage or some other battery voltage. Various embodiments are disclosed. | 06-21-2012 |
20120161776 | 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. | 06-28-2012 |
20120182019 | BATTERY MONITORING CIRCUIT AND BATTERY MONITORING SYSTEM - A battery monitoring circuit monitors voltages of a plurality of secondary cells connected in series. The battery monitoring circuit comprises a first switch element, a second switch element, a third switch element, and a first capacitor. The battery monitoring circuit comprises an operational amplifier of which an inverting input terminal is connected to a second end of the first capacitor, a non-inverting input terminal is connected to a fixed potential, and an output is connected to the second end of the first capacitor. The battery monitoring circuit comprises an A/D converter which performs analog-to-digital conversion on a signal output by the operational amplifier and outputs an obtained digital signal. The battery monitoring circuit comprises a control circuit which performs on/off control on the first to third switch elements and controls operations of the operational amplifier and the A/D converter. | 07-19-2012 |
20120200297 | DEVICE FOR MEASURING BATTERY VOLTAGE AND RELATED MONITORING DEVICE - The invention relates to a device for measuring battery voltage including an accumulator (Ai), characterized in that said measuring device comprises: an alternating current generator (II), at least one first diode (D | 08-09-2012 |
20120212232 | BUSBAR FOR BATTERY ELECTRODE POST CONNECTION AND BATTERY VOLTAGE MONITOR USING THE SAME - A busbar for battery electrode post connection with a terminal for voltage detection is provided. Both ends of a length direction of a rectangular thin plate of a conductive metal are left and an elongated opening is formed in a center. Two holes through which an electrode post of one battery and an electrode post of an adjacent battery are inserted are respectively formed in the rectangular thin plates of both sides around the elongated opening of the center. A terminal for voltage detection is extended integrally to the rectangular thin plate from an edge of the rectangular thin plate. The two holes overlap in a state of where the rectangular thin plate is folded in two with respect to the elongated opening. The terminal for voltage detection can be erected from the rectangular thin plate by folding the terminal for voltage detection in a vertical direction. | 08-23-2012 |
20120217971 | NFC SYSTEM PROVIDING BATTERY POWER LEVEL MEASUREMENT FEATURES AND RELATED METHODS - A Near Field Communication (NFC) system may include a battery including a battery casing, at least one battery cell carried by the battery casing, at least one power measurement circuit carried by the battery casing and configured to measure a power level of the at least one battery cell, and a first NFC circuit carried by the battery casing and configured to communicate the power level measurement via NFC communication. The NFC system may further include a mobile wireless communications device including a portable housing, a second NFC circuit carried by the portable housing, and a controller carried by the portable housing and configured to cause the second NFC circuit to receive the power level measurement from the first NFC circuit based upon proximity therewith. | 08-30-2012 |
20120229142 | APPARATUS FOR DETECTING LEAKAGE CURRENT OF BATTERY - An apparatus for detecting leakage current of a battery is disclosed. The apparatus includes a leakage current generating unit, a leakage current measuring unit, and a peak holding unit. | 09-13-2012 |
20120274331 | Method and Apparatus for Determining the State-of-Charge of a Battery - A method and apparatus for determining the state-of-charge of a battery. In response to detecting that the battery is in a rest state, a pre-conditioning current is drawn from the battery to affect a correlation between the state-of-charge of the battery and an open-circuit voltage of the battery. Thereafter, the open-circuit voltage of the battery is measured, and used to determine the state-of-charge. | 11-01-2012 |
20120280692 | APPARATUS AND METHOD FOR MANAGING BATTERY PACK - The present invention discloses an apparatus and method for managing a battery pack, which can rapidly and accurately diagnose the coupling state of a bus bar to battery modules in the battery pack. In accordance with the present invention, provided is an apparatus for managing a battery pack having a plurality of battery modules and a bus bar coupled between the battery modules to electrically connect the battery modules, the apparatus comprising a coupling detection unit for detecting the coupling state of the bus bar to the battery modules; and a controlling unit for determining whether the coupling state of the bus bar has a defect on the basis of the coupling state detected by the coupling detection unit. | 11-08-2012 |
20120286792 | Channel Verification of Multiple Channels on One Chip - A battery monitoring system and method are disclosed. A battery monitor compares data in parallel register files. If voltage deviation above a certain threshold is detected in one register file, the system generates an alert that a fault exists upstream in the system. In order to better detect errors, the system may intentionally alter the voltages on the batteries to be monitored. | 11-15-2012 |
20120286793 | VEHICLE SYSTEM AND METHOD FOR DETECTING HYDROGEN SULFIDE - A sulfide-based solid electrolyte cell which can efficiently detect its deterioration, a cell pack equipped with the cell, a vehicle system equipped with the cell pack, and a method for detecting hydrogen sulfide. A sulfide-based solid electrolyte cell including at least one or more power generation units each including a positive electrode, a negative electrode and an electrolyte present between the positive and negative electrodes, and a cell case which houses the power generation units, wherein at least one of the positive electrode, negative electrode and electrolyte includes a sulfur material, and wherein at least one of a current collector which constitutes a charging and discharging path, a lead which constitutes a charging and discharging path, and a lead which is connected to a circuit that is attached to the charging and discharging path, includes a material which chemically reacts with hydrogen sulfide to change electrical resistance. | 11-15-2012 |
20120306503 | System and Method for Assessing Voltage Threshold Detecting Circuitry Within a Battery Pack - Systems and methods for assessing voltage threshold detection circuitry of individual battery cells within a battery pack supplying power to a vehicle are disclosed. One example system comprises, a plurality of battery cells within a battery pack, a plurality of voltage threshold detecting circuits detecting voltage of the plurality of battery cells, a voltage of a first battery cell of the plurality of battery cells coupled to a first voltage threshold detecting circuit of the plurality of voltage threshold detecting circuits, and a network that selectively couples a second battery cell to the first voltage detecting circuit while the first battery cell is coupled to the first voltage detecting circuit. | 12-06-2012 |
20120319693 | ELECTRIC POWER STORAGE SYSTEM - When a continuous short circuit occurs between both terminals of a battery pack, fault, destruction and rupture of the battery can occur. Further, when a momentary short circuit occurs, a user may continue to use, without knowing thermal and electrical damage to the batteries, and reliability for the batteries is impaired, To overcome the problem, in a battery pack configured by connecting a plurality of storage batteries in series, at least one first storage battery is included which has a low capacity compared to second storage batteries during high-rate discharge, and the first storage battery undergoes polarity inversion during external short circuit, thereby preventing the other batteries from becoming damaged. There are also included a detector that detects voltage of the first storage battery, and a fault signal generator that generates an output fault signal when a voltage detected by the detector inverses. | 12-20-2012 |
20120326724 | APPARATUS AND METHOD FOR ESTIMATING AVAILABLE TIME OF BATTERY - Disclosed are an apparatus and method for estimating an available time of a battery relatively accurately in consideration of a driving pattern of a user. The apparatus for estimating an available time of a battery includes a current measuring unit for measuring an output current of the battery, a SOC estimating unit for estimating SOC (State Of Charge) of the battery, and a controller for estimating an available time of the battery by using a measured current value obtained by the current measuring unit, an estimated SOC value obtained by the SOC estimating unit and an entire capacity of the battery. | 12-27-2012 |
20130002259 | BATTERY VOLTAGE MEASUREMENT SYSTEM AND METHOD THEREOF - A battery voltage measurement system is disclosed. The system includes a measurement unit, a calibration unit, and a control unit. The calibration unit is coupled between the measurement unit and a battery, for providing several test voltages to the measurement unit. The control unit is coupled to the calibration unit and the measurement unit, for controlling the calibration unit and for receiving an output voltage of the measurement unit. Under a calibration mode, the calibration unit outputs test voltages to the measurement unit, and the control unit calculates a calibration value according to a relation between the test voltages and the output voltage of the measurement unit. Under a measurement mode, the calibration unit transmits a battery voltage to the measurement unit, and the control unit calibrates the output voltage of the measurement unit according to the calibration value for acquiring accurate value of the battery voltage. | 01-03-2013 |
20130002260 | MONITORING SYSTEM FOR AN ENERGY STORAGE CELL - A monitoring system for monitoring the state of an energy storage cell for storing electrical energy, in particular, an electrochemical energy storage cell or an energy storage cell having at least one capacitor. Integrated electronics for monitoring the state of the energy storage cell are arranged in the energy storage cell, the integrated electronics having a transmitting/receiving unit for wireless data exchange with a battery control system arranged outside the energy storage cell. Alternatively, the integrated electronics are connected to a transmitting/receiving unit for wireless data exchange with a battery control system arranged outside the energy storage cell. | 01-03-2013 |
20130021036 | TEST AND MEASUREMENT DEVICE WITH A PISTOL-GRIP HANDLE - A clamp meter configured to receive a removable and rechargeable battery pack. The clamp meter includes a main body having a first axis, a handle, a clamp, a trigger, and a display. The handle has a second axis and includes a first recess configured to receive the battery pack. The first recess includes at least first and second electrical terminals which are exposed when the battery pack is not inserted into the first recess. The second axis forms an oblique angle with the first axis, and the battery pack is inserted into the first recess along the second axis. The clamp is coupled to the main body, aligned with the first axis, and operable to measure an electrical characteristic of a conductor based on an induced current. The trigger is operable to selectively open and close the clamp, and the display configured to display an indication of the electrical characteristic. | 01-24-2013 |
20130027047 | STATE-OF-CHARGE ESTIMATING APPARATUS - A state-of-charge estimating apparatus includes at least a first arithmetic unit configured to calculate, as a first estimation value, the present estimation value calculated based on a battery capacity, the last estimation value, and an electric current flowing in and out between a current control apparatus, which controls charge and discharge amounts of a power storage apparatus, and the power storage apparatus, and a second arithmetic unit configured to calculate, during constant current control, as the present value of a second estimation value, an estimation value calculated based on an equivalent circuit model of a battery and a voltage of the battery and, on the other hand, calculate, during constant voltage control, as the second estimation value, the present estimation value calculated taking into account a resistance change of the battery based on the equivalent circuit model of the battery and the voltage of the battery. | 01-31-2013 |
20130043876 | METHOD FOR ESTIMATING STATE-OF-CHARGE OF LITHIUM ION BATTERY - The invention relates to the technical field of lithium-ion batteries, in particular to a method for estimating the state of charge of a lithium-ion battery. The method includes: charging a lithium-ion battery, recording multiple groups of ampere-hour integral values, and states of charge and voltage values corresponding to the ampere-hour integral values; taking the maximum value in the multiple groups of ampere-hour integral values as the first ampere-hour integral value, the state of charge corresponding to the first ampere-hour integral value as the first state of charge, and the voltage value corresponding to the first ampere-hour integral value as the first voltage value; monitoring the lithium-ion battery in real time, recording a real-time second ampere-hour integral value and a second voltage value, obtaining a second state of charge by an ampere-hour measuring method; and if the second voltage value is consistent with the first voltage value and the second state of charge is inconsistent with the first state of charge, replacing the second state of charge with the first state of charge. The invention increases the reliable evidence for judging the online equalization of the battery pack and most importantly avoids the situation where the state of charge of the battery can be corrected only on condition that the battery pack works at the extreme state of charge, and lowers the influences of the full charge and discharge on the lifetime of the battery. | 02-21-2013 |
20130057288 | MAGNETIC MEASUREMENT SYSTEM AND METHOD FOR MEASURING MAGNETIC FIELD - In a magnetic measurement system for a battery, a magnetic signal generated by electric currents in the battery for charging and discharging can be accurately measured without saturating the output of a magnetic sensor even in an environment having strong magnetic noise, and electric current distribution in the lithium-ion battery is visualized. Generating a antiphase magnetic field having an antiphase magnetic field to a magnetic field measured by each magnetic sensor into the cancel coil disposed around each the magnetic sensor before charging and discharging; thereafter, reducing magnetic noise by subtracting the magnetic data recorded before charging and discharging (the correction-magnetic field data) from the magnetic data for charging and discharging; and accurately measuring the magnetic signal generated from the lithium-ion battery for charging and discharging are included. | 03-07-2013 |
20130057289 | VOLTAGE MEASURING APPARATUS FOR BATTERY ASSEMBLY - A voltage measuring apparatus includes polarity detection units that are each provided for a respective one of cells to detect polarities of the voltages output from the cells, absolute value detection units that are each provided for the respective one of the cells to detect absolute values of the voltages, A/D conversion units that are each provided for a respective one of a plurality of blocks and which includes at least one cell, to digitalize the absolute values of the voltages in correspondence with the cell of the respective blocks, and voltage detection units that calculate the output voltages with the polarities for the respective cells based on the digitalized absolute values of the voltages and the polarities of the voltages to detect the total voltages of the output voltages with the polarities for each of the blocks. | 03-07-2013 |
20130063151 | Arrangement and Method for Measurements on HV Battery - An arrangement ( | 03-14-2013 |
20130069658 | DIAGNOSTIC USE OF PHYSICAL AND ELECTRICAL BATTERY PARAMETERS AND STORING RELATIVE CONDITION DATA - In at least one embodiment, a power management module measures an electromagnetic radiation spectrum or a voltage response of a battery module. The measured electromagnetic radiation spectrum or voltage response of the battery is compared to a plurality of reference electromagnetic radiation spectrums or voltage responses, respectively, which may be determined for authentic batteries, for example. A relative condition of the battery, such as an age or state of health, may be estimated based on the measured electromagnetic radiation spectrum or voltage response of the battery module, and stored in a memory store. The rate of change of the relative condition of the battery over a period of time may be determined to identify potential defects in the battery. | 03-21-2013 |
20130069659 | POWER SUPPLYING SYSTEM - [Objective] To provide a power supplying system wherein the timing at which a storage unit conducts capacity learning is made to be more suitable. [Solution] A power supplying system supplies power to loads provided within a facility, and is provided with: a power storage unit that stores power by being charged, and supplies power by being discharged; and a capacity measurement unit that measures the remaining capacity of the power storage unit by executing a complete charging and a complete discharging of the power storage unit, in sequence. The capacity measurement unit obtains the operation schedule of the facility, and determines the timing at which the complete charging and the complete discharging of the power storage unit are to be conducted, on the basis of the operation schedule. | 03-21-2013 |
20130093428 | METHODS AND APPARATUS FOR BATTERY TESTING - Methods and apparatus for testing electrical storage batteries monitor magnetic susceptibility of components of the storage batteries. In some embodiments, magnetic susceptibility of a plate in a lead-acid battery is determined to provide an indication of the state of charge of the battery. | 04-18-2013 |
20130099793 | BATTERY MONITORING APPARATUS - A battery monitoring apparatus for monitoring a battery condition of an assembled battery. In the apparatus, a control unit transmits, to a monitoring unit that is powered by the assembled battery and monitors its battery condition, a first mode-switching instruction signal for instructing the monitoring unit to transition from a normal mode to a dark-current mode. Subsequently, the control unit transmits to the monitoring unit a second mode-switching signal for instructing the monitoring unit to transition from the dark-current mode to the normal mode, and acquires an increased count value of a timer circuit in the monitoring unit for a time period from transmission of the first mode-switching instruction signal to transmission of the second mode-switching instruction signal. When it is determined that the increased count value is greater than an abnormality diagnosis criterion value, then the control unit determines that the dark-current mode of the monitoring unit is malfunctioning. | 04-25-2013 |
20130106425 | CURRENT DETECTION APPARATUS | 05-02-2013 |
20130113492 | STORAGE BATTERY DETERIORATION DIAGNOSIS SYSTEM AND METHOD THEREOF - There is provided a storage battery deterioration diagnosis system, including: a cell-list creator configured to select diagnosis target cells from among a plurality of cells in a storage battery system, and create a list of the diagnosis target cells; a cell deterioration diagnoser configured to obtain degradation degrees of the diagnosis target cells; a temperature distribution estimator configured to estimate degradation degrees of non-target cells other than the diagnosis target cells, based on a distance between the non-target cell and the diagnosis target cells, and obtain temperature distribution of a whole of the plurality of cells based on degradation degrees of the diagnosis target cells and the degradation degrees of the non-target cells; and a cell-list updater configured to update the list of the diagnosis target cells based on the temperature distribution. | 05-09-2013 |
20130113493 | PROTECTIVE SEMICONDUCTOR APPARATUS FOR AN ASSEMBLED BATTERY, A BATTERY PACK INCLUDING THE PROTECTIVE SEMICONDUCTOR APPARATUS, AND AN ELECTRONIC DEVICE - A protective semiconductor apparatus for protecting an assembled battery including N secondary cells connected in series includes a disconnection detecting circuit including, for each of the N secondary cells, a voltage-sensing resistor dividing a voltage of a corresponding one of the secondary cells, a reference voltage, and a first comparator comparing a voltage obtained by the voltage-sensing resistor with the reference voltage. The protection semiconductor apparatus also includes a circuit connecting an internal resistor having a resistance value smaller than a resistance value of a corresponding one of the voltage-sensing resistors in parallel to the corresponding voltage-sensing resistors successively and selectively at predetermined time intervals. The disconnection detecting circuit detects disconnection between the N secondary cells and the protective semiconductor apparatus based on an output from the first comparator when the internal resistor is connected in parallel to the corresponding voltage-sensing resistor. | 05-09-2013 |
20130113494 | CHUCK MECHANISM OF CHARGE-DISCHARGE TEST DEVICE FOR THIN SECONDARY BATTERY - The present invention relates to a chuck mechanism of a charge-discharge test device for a thin secondary battery, and aims to provide a chuck mechanism having excellent action controllability. The chuck mechanism includes: a chuck drive part which is movable in a direction toward a battery container housing a thin secondary battery; and a chuck activation part which is located away from the chuck drive part in the direction toward the battery container and whose movement in the same direction is restricted. In the chuck mechanism, when the chuck unit is moved in the direction toward the battery container, the chuck drive part activates a chuck member of the chuck activation part whose movement in the same direction is restricted. | 05-09-2013 |
20130119997 | METHOD AND APPARATUS FOR BATTERY GAUGING IN A PORTABLE TERMINAL USING AMOLED DISPLAY - Provided is a battery gauging method for a portable terminal including an active matrix organic light emitting diode (AMOLED) display. The battery gauging method may measure a voltage value of a battery, may determine, for each pixel, RGB information associated with image data buffered in a frame buffer, may determine, for each pixel, a preliminary compensation value corresponding to determined RGB information so as to calculate a compensation value by adding preliminary compensation values of all pixels, and then determine a residual quantity of the battery based on the measured voltage value and the compensation value. | 05-16-2013 |
20130127473 | SECONDARY CELL AND METHOD FOR TESTING SECONDARY CELL - The present invention provides a secondary cell, wherein an area having generated therein a phenomenon due to an internal short-circuit can be freely changed, a change in the secondary cell due to the generation of the internal short-circuit is correctly grasped, and safety of the secondary cell can be accurately evaluated when the internal short-circuit is generated. An internal short-circuit test method for the secondary cell is also provided. In the present invention, the secondary cell is configured by disposing: an electrode group, which is formed by winding or laminating a positive electrode plate, a negative electrode plate, and an insulating layer disposed between the positive electrode plate and the negative electrode plate; and a heat generating body, which is disposed between the positive electrode plate and the insulating layer or between the negative electrode plate and the insulating layer. | 05-23-2013 |
20130141105 | TEST SYSTEM FOR A BATTERY MODULE - A test system for a battery module is provided. The system includes a housing having a bottom plate; and first, second, third and fourth side walls coupled to the bottom plate that defines an interior region. The system further includes a mounting fixture that fixedly holds the battery module thereon. The system further includes first, second, third and fourth coupling members. The system further includes a lid coupled to the housing utilizing the first, second, third and fourth coupling members. The system further includes a battery charging system that charges the battery module. | 06-06-2013 |
20130141106 | CIRCUIT FOR MEASURING VOLTAGE OF BATTERY AND POWER STORAGE SYSTEM USING THE SAME - A circuit for measuring voltage of a battery and a power storage system using the same are disclosed. According to one aspect, the circuit includes a switching element connected to the battery and configured to output a first signal at a first voltage level. The switching element is configured to be turned-on in response to a voltage measuring control signal. The circuit also includes a voltage conversion circuit connected to the switching element. The voltage conversion circuit is configured to output a second signal at a second voltage level that is proportional to the first voltage level. An analog-digital converter is configured to receive the second signal and convert the received second signal into a digital signal. A controller is configured to transfer the voltage measurement control signal to the switching element, and receive the digital signal from the analog-digital converter. | 06-06-2013 |
20130141107 | BATTERY INSPECTION APPARATUS - A battery inspection apparatus includes: a battery inspection table having a plurality of inspection units each for inspecting a rechargeable battery; and a controller that is provided separately from the battery inspection table and configured to control the battery inspection table. Each of the inspection units includes: a contactor for inspection configured to contact a corresponding battery; and a measurement circuit that is connected to the contactor and configured to generate an analog measured signal by measuring at least one of a current, voltage, and temperature, based on an input from the contactor. The battery inspection table has a control board mounted, the control board being configured to convert the analog measured signal generated by each of the inspection units into a digital signal to output to a common communication cable, and the communication cable connects the control board and the controller together. | 06-06-2013 |
20130141108 | METHOD FOR RECOGNIZING A CRITICAL BATTERY CONDITION AFTER A RESET OF A BATTERY MONITORING DEVICE - The invention relates to a method for recognising a critical battery condition after a reset ( | 06-06-2013 |
20130154652 | BATTERY STATE OF CHARGE SENSOR - The invention relates to an object's state or properties being monitored, such as a lithium-iron-phosphate (LFP) or other type of electrical battery containing one or more LFP or other type of electrical battery cell within the battery, and one or more sensors for measuring the state or property of the object, such as the state of charge of the battery cells, by measuring the magnetic susceptibility or other properties, such as the magnetic susceptibility of electrolyte or the electrodes within the battery cells. The state of charge of the battery cells within the battery arc monitored by the one or more sensors, which are coupled to electrical circuits. | 06-20-2013 |
20130154653 | ADAPTIVE METHOD FOR DETERMINING THE POWER THAT CAN BE MAXIMALLY OUTPUTTED OR ABSORBED BY A BATTERY - A method for determining the power that can be provided or absorbed by a battery includes determining a state variable of the battery. A power that can be provided or absorbed by the battery during a specified load period is determined using a table of power values and the state variable of the battery. The state variable of the battery is used as an access parameter for the table. A load of the battery is measured using an operating parameter of the battery. A load period in which the load of the battery is given is measured. The measured load period is compared with a comparison range that contains the specified load period. A correction routine is carried out if the load period lies in the comparison range. A battery system includes a controller for carrying out the method. A motor vehicle includes the battery system. | 06-20-2013 |
20130154654 | BATTERY TEST CIRCUIT WITH ENERGY RECOVERY - A battery test circuit for testing batteries in a working circuit having a plurality of batteries includes a DC step up converter. The DC step up converter may be selectively interconnected between a first one of a plurality of batteries and a second one of a plurality of batteries, to draw a test current from the first battery and to supply current at an elevated voltage to the second battery. The test circuit further includes an indicator output for providing a signal indicative of whether the first battery provides the test current substantially at its rated voltage. | 06-20-2013 |
20130154655 | PROCESS FOR AUTO-TESTING A FULLY DISCHARGED BATTERY, SUCH AS DOUBLE-LAYER CAPACITOR BATTERY, AND CIRCUIT FOR DOING THE SAME - A process for performing an auto-test of a fully discharged battery ( | 06-20-2013 |
20130169281 | PARAMETER ESTIMATION DEVICE - A parameter estimation device includes an input signal detecting means | 07-04-2013 |
20130181720 | BATTERY SENSOR - A battery sensor for determining at least one operational parameter of a battery, wherein the battery sensor comprises at least one transistor having controllable resistance, which is designed to determine the at least one operational parameter. | 07-18-2013 |
20130207663 | Arrangement for Measuring a Single Cell in a Rechargeable Battery Pack and Rechargeable Battery Pack Comprising such an Arrangement - An arrangement for measuring a single cell in a rechargeable battery pack is described, and which includes a plurality of cells coupled in a series circuit, and wherein adjacent cells are electrically coupled to a connecting branch, and a measuring device comprising a switch is provided, and which selectively electrically connects one connecting branch to a measuring input of the measuring device. | 08-15-2013 |
20130241564 | Method for Determining a Charge State of a Battery - The disclosure relates to a method for determining a charge state of a battery having a battery management unit. In a first operating state of the battery management unit, a battery current is regularly detected by the battery management unit. The battery management unit switches to a second operating state when the battery current exceeds a predetermined current threshold value. In the second operating state, information about the charge state of the battery is collected. Furthermore, a battery having a battery management unit is described, which is configured to carry out the method according to the disclosure. | 09-19-2013 |
20130257441 | BATTERY MONITORING SYSTEM AND SEMICONDUCTOR DEVICE - A battery monitoring system including: plural battery cell sets; and semiconductor devices, wherein: each of the semiconductor devices includes a measuring section, a high side communication section that is supplied with a drive voltage in a first voltage range, and, when a semiconductor device is present at a higher position that operates at a higher operating voltage than the operating voltage of the semiconductor device itself when measuring a battery cell set on the high side of the battery cell set measured by the semiconductor device itself, can perform communication with the high side semiconductor device, a low side communication section, and a communication level converter; the semiconductor device at the highest stage further includes a signal level determination section; and the first voltage range of the highest stage is set to a specific voltage range narrower than the first voltage range of another of the semiconductor devices. | 10-03-2013 |
20130265057 | STRUCTURE AND METHOD OF MOUNTING CURRENT SENSOR TO BATTERY CABLE - A structure of mounting a current sensor to a battery cable includes a battery cable, a thermal fusion bonding tape wound around an outer circumference of the battery cable, and a current sensor. The current sensor includes a housing including a current detecting part configured to detect a current flowing through the battery cable, and a holder configured to hold and compress a thermal fusion bonding tape mounting portion in cooperation with the housing to deform a cross-sectional shape of the thermal fusion bonding tape mounting portion into an elliptical shape. The thermal fusion bonding tape mounting portion is a portion where the thermal fusion bonding tape is wound around the battery cable. Upon a compression between the housing and the holder being released, the elliptical shape of the cross-sectional shape of the thermal fusion bonding tape mounting portion is maintained. | 10-10-2013 |
20130271148 | METHOD OF DETECTING BATTERY DEGRADATION LEVEL - A method of detecting battery degradation level detects charging and discharging current flow in the battery and determines battery degradation level (state of health, SOH) from the charging and discharging current. The method detects the battery degradation level (SOH) from the root-mean-square of the charging and discharging current flow (I | 10-17-2013 |
20130278270 | EXPECTED BATTERY LIFE DETERMINATION SYSTEMS AND METHODS - A method includes: generating a first age factor value for a battery based on: a cycle period of the battery; a required operational life of the battery; and a cycle life of the battery. The method further includes generating a second age factor value for the battery based on: the required operational life; and a resting life of the battery. The method further includes generating a third age factor value for the battery based on: the required operational life; the first age factor value; the second age factor value; and at least one of an expected period of cycling of the battery during the required operational life and expected period of resting of the battery during the required operational life. The method further includes: generating an expected life of the battery based on the required operational life and the third age factor value; and displaying the expected life. | 10-24-2013 |
20130300425 | ELECTRIC STORAGE DEVICE MANAGEMENT SYSTEM, ELECTRIC STORAGE DEVICE PACK, AND METHOD OF ESTIMATING STATE OF CHARGE - An electric storage device management system includes a voltage sensor, a memory, and a controller. The voltage sensor detects a voltage across an electric storage device having a correlation between an open circuit voltage (OCV) and a state of charge (SOC) including a slight change region and a sharp change region. The memory stores information on correlation between OCV and SOC in the sharp change region. The controller is configured to: determine an OCV based on a voltage detected by the voltage sensor; determine whether the defined OCV is within the sharp change region; determine an SOC corresponding to the defined OCV based on the stored information stored if the defined OCV is within the sharp change region; determine the determined SOC as an estimated SOC; and prohibit the determining of the SOC as an estimated SOC if the defined OCV is out of the sharp change region. | 11-14-2013 |
20130320988 | Method and Arrangement for Monitoring the Voltage on Electrical Storage Units, Battery and Motor Vehicle having such a Battery - The present disclosure relates to a method for monitoring the voltage on electrical storage units, to a battery and to a motor vehicle having such a battery that are configured to be used particularly for improved establishment of overvoltages and/or undervoltages on modules of the electrical storage unit. To this end, a method for monitoring the voltage on at least one electrical storage unit includes extracting an idle voltage U_OCV on the at least one electrical storage unit from a voltage U_measured that is measured on the at least one electrical storage unit. | 12-05-2013 |
20130328566 | METHOD OF TESTING SECONDARY BATTERY - A method of testing a secondary battery includes first to fourth steps. At the first step, the secondary battery after manufacture is charged to a first voltage. At the second step, a second voltage lower than the first voltage is set as a target voltage and discharge or charge is performed in a constant-current constant-voltage mode before the secondary battery is left standing. At the third step, the open circuit voltage of the secondary battery is measured before and after the secondary battery is left standing. At the fourth step, it is determined whether the secondary battery is a conforming item or not based on the difference in the open circuit voltage before and after the secondary battery is left standing. | 12-12-2013 |
20130335094 | VIBRATORY ANALYSIS OF BATTERIES - Methods and apparatuses for determining the charge of a battery are disclosed. Embodiments include determining the charge in batteries that exhibit mass diffusion during charging or discharging, such as by evaluating the response of the battery to vibration. Alternate embodiments include evaluating the amplitude response of the battery and the phase shift response of the battery. Still other embodiment include evaluating the H | 12-19-2013 |
20130335095 | VOLTAGE MONITORING MODULE AND VOLTAGE MONITORING SYSTEM - The voltage monitoring module ( | 12-19-2013 |
20140002094 | SUPPRESSING HF CABLE OSCILLATIONS DURING DYNAMIC MEASUREMENTS OF CELLS & BATTERIES | 01-02-2014 |
20140015532 | REMAINING LIFE DETERMINING SYSTEM FOR STATIONARY STORAGE BATTERY, AND METHOD OF DETERMINING REMAINING LIFE OF STATIONARY STORAGE BATTERY - A remaining life determining system for a stationary storage battery has a detecting unit configured to detect an evaluation value indicative of a deterioration level of the stationary storage battery, a first storage unit configured to store a usage history of the stationary storage battery, a second storage unit configured to store remaining life information associated with usage information of the stationary storage battery, a third storage unit configured to store remaining life basic information of the stationary storage battery, and a controller configured to estimate the remaining life of the stationary storage battery, from the usage history, the evaluation value, and the remaining life information. | 01-16-2014 |
20140015533 | CURRENT SENSOR - A current sensor including at least one first current detection element, which detects a load current (I | 01-16-2014 |
20140028320 | METHOD OF INSPECTING SECONDARY BATTERY - A method of inspecting a secondary battery includes: discharging the secondary battery initially charged, at a discharge current, from an initial voltage to a discharge ending voltage; calculating an interval capacity in a voltage interval from a check starting voltage to a check ending voltage, based on the discharge current, and discharge time taken in the voltage interval; measuring a voltage change amount from a point in time when the voltage reaches a first voltage to a point in time when a length of time elapses from the above point in time, when the secondary battery is discharged from the initial voltage to the discharge ending voltage; and determining whether a total capacity satisfies a performance requirement, by comparing the calculated interval capacity with a first threshold value, and determining whether an output satisfies a performance requirement, by comparing the measured voltage change amount with a second threshold value. | 01-30-2014 |
20140035592 | METHOD FOR MONITORING A BATTERY PACK, BATTERY WITH A MONITORING MODULE AND A MOTOR VEHICLE WITH A CORRESPONDING BATTERY - A method is used for monitoring a battery pack to check claims under guarantee that could possibly be invalid due to incorrect opening of the battery pack. The battery pack includes at least one electrochemical cell. When the battery pack is monitored, whether the battery pack has been opened is detected and any details relating to an event of opening are recorded in a non-erasable storage medium. | 02-06-2014 |
20140055143 | BATTERY TESTING SYSTEM WITH ENERGY CIRCULATION - A battery testing system with energy circulation includes a battery module to be tested, an electric power storage module, a bi-directional conversion module and a control module, and the control module controls the bi-directional conversion module to discharge the electric power storage module and charge the battery module to be tested, or discharge the battery module to be tested and charge the electric power storage module, so that the electricity can be fully and repeatedly used, and the electric power storage module can use a second-used power battery to save the cost of the electric power storage module while the battery testing system can be isolated from the grid of utility power to avoid creating a burden to the grid of the utility power. | 02-27-2014 |
20140062493 | HIGH VOLTAGE CONNECTOR SYSTEM AND METHOD - An electrical connector that has a first side configured to interface with a battery module and a second side configured to interface with a mating plug coupled to a first load. The electrical connector includes terminals extending through the first and second sides and configured to route power at a first voltage from the battery module to the mating plug; low voltage lines extending through the first and second sides, wherein the low voltage lines operate at a voltage less than the first voltage; and high voltage lines electrically coupled to the terminals via conductive leads and configured to route an electrical signal from the terminals to a second load. The electrical connector contains a secondary connection interface configured to allow access to the low and high voltage lines. | 03-06-2014 |
20140070813 | Wireless Handle for a Battery Tester and Battery Tester Assembly Thereof - A wireless handle for a battery tester, comprising a wireless signal transmitting/receiving means capable of exchanging information with a battery tester through wireless communication; an information input means; an information output means; and a signal processing and control means, wherein the wireless signal transmitting/receiving means, the information input means, and the information output means are coupled with the signal processing and control means. The wireless handle enables an operator to control some functions of the battery tester and/or monitor detected information remotely during the process of testing, which can increase efficiency of the testing and avoid any disturbance of the testing circuits caused by the information input means and the information output means. | 03-13-2014 |
20140077815 | METHOD AND APPARATUS FOR DETERMINING A CAPACITY OF A BATTERY - Some embodiments of the present invention provide a system that accurately and reliably updates a full charge capacity of a battery. During operation, the system charges the battery from an initial state to a rest point prior to reaching a fully charged state. The system then interrupts the charging process to allow the battery to relax to a resting voltage. Next, the system measures the resting voltage. The system then resumes the charging process toward the fully charged state. The system subsequently estimates the capacity of the battery based on the measured resting voltage and one or more other parameters. | 03-20-2014 |
20140077816 | SENSOR DEVICE AND METHOD FOR PRODUCING A SENSOR DEVICE FOR ACCOMMODATION IN A GALVANIC CELL - A sensor device for accommodation in a galvanic cell, having a sensor for detecting a predetermined measured quantity of the galvanic cell. The sensor device includes a sensor housing for receiving the sensor, the sensor being disposed in a recess in the sensor housing, and a measured-quantity transfer medium that covers at least the recess in the sensor housing in fluid-tight fashion and is formed to couple the sensor to an external environment of the sensor device for the transfer of the measured quantity. | 03-20-2014 |
20140091805 | BATTERY MODULE AND INSULATION INSPECTING METHOD OF BATTERY MODULE - A battery module includes a metal casing and a battery cell accommodated in the casing. The casing is provided on its outer surface with an insulation layer and a conductive portion. | 04-03-2014 |
20140097851 | Method for Transmitting Data Between a Control Device and at least one Measurement Device by means of a Bus System, and a Battery Management Unit - The disclosure provides a method for transmitting data between a control device and at least one measurement device via a bus system. The method includes recording first measurement data relating to at least one measurement variable with the at least one measurement device with a first measurement data resolution within a first measurement cycle, transmitting the recorded first measurement data to the bus system at a first measurement frequency within the first measurement cycle. The method further includes recording second measurement data relating to the at least one measurement variable with the at least one measurement device with a second measurement data resolution within a second measurement cycle. The second measurement data resolution is less than the first measurement data resolution. The method also includes transmitting the recorded second measurement data to the bus system at a second measurement frequency within the second measurement cycle. | 04-10-2014 |
20140111214 | ELECTRIC STORAGE CONDITION DETECTING APPARATUS - An electric storage condition detecting apparatus includes a voltage detector configured to detect a voltage of an electric storage device, and a controller configured to determine stabilizing time based on data corresponding to a charging capacity of the electric storage device, and the stabilizing time is required for stabilizing an open circuit voltage of the electric storage device. | 04-24-2014 |
20140117996 | TEST SYSTEM FOR A BATTERY PACK AND A METHOD FOR TESTING THE BATTERY PACK - A test system for a battery pack having at least first and second battery modules is provided. The system includes a high voltage service disconnect assembly having a housing and an electrically-actuated switch. The system further includes a microprocessor that generates a first signal to induce the switch to have a closed operational position to electrically couple the first battery module to the second battery module. The sensor generates a second signal associated with the battery pack. The microprocessor stops generating the first signal to induce the switch to have an open operational position to electrically decouple the first battery module from the second battery module when the first signal is greater than a threshold level. | 05-01-2014 |
20140117997 | Battery Pack Maintenance for Electric Vehicle - A method and apparatus for repairing or testing a used battery pack from an electric vehicle include removing the battery pack from the vehicle. Battery tests are performed on at least some of the plurality of batteries and battery test results for each of the batteries tested are obtained. A cradle is configured to receive at least two different types of batteries. The cradle includes connectors to electrically couple circuitry of a battery tester to the battery. | 05-01-2014 |
20140125344 | System and Method for Improved Battery Charge State Determination - Improved battery charge state determination. The estimated charge state of a battery comprising a plurality of series connected cells is updated using Coulomb counting during battery operation, for example, while operating an electric vehicle motor. The estimated charge state may be coupled to a fuel gauge. When the battery is in a no load state, a no load voltage measurement is made. During testing, a set of relationships between battery no load voltages and associated known good charge states have been determined. The measured no load voltage is compared to the set of no load voltages associated with known good charge states. A known good charge state associated with the measured no load voltage is used to update the estimated charge state, thereby providing a more accurate indication of the actual battery charge state, thus providing a more robust and accurate fuel gauge. | 05-08-2014 |
20140125345 | CONDITION ESTIMATION DEVICE AND METHOD OF ESTIMATING CONDITION - A condition estimation device for estimating condition of an electric storage device includes a voltage detector and a controller. The voltage detector is configured to detect a voltage of the electric storage device. The controller is configured to perform a distinctive point detection process to detect a distinctive point based on the voltage detected by the voltage detector, and an estimation process to estimate the condition of the electric storage device based on the distinctive point detected in the distinctive point detection process. The distinctive point is a point at which a variation in voltage per unit remaining capacity or per unit time of the electric storage device during charge or discharge is a local maximum value. | 05-08-2014 |
20140125346 | METHOD AND SYSTEM FOR VOLTAGE SENSE INPUT - A circuit that includes a bridge rectifier configured to convert a sensed input signal into a rectified output signal and a regulator configured to convert the rectified output signal into a voltage source signal. The circuit further includes a variable period timer configured to be powered by the voltage source signal and to convert the rectified output signal into a low duty cycle timer signal in which 50% is a low duty cycle and the low duty cycle timer signal has a frequency that is correlated to an input voltage level of the sensed input signal, wherein the voltage sensing circuit is configured to operate on input voltage levels of sensed alternating current (AC) and direct current (DC) input signals over one or more determined dynamic ranges. | 05-08-2014 |
20140125347 | SYSTEM FOR AUTOMATICALLY RECOGNIZING BATTERY CHARACTERISTIC, BATTERY INFORMATION STORAGE DEVICE FOR THE SAME, AND METHOD FOR AUTOMATICALLY OPTIMIZING BATTERY MANAGEMENT DEVICE BY USING THE SAME - A system for automatically recognizing a battery characteristic includes a battery information storage device for storing battery information; and a battery management device is connected to the battery information storage device and configured to battery management standards with reference to the battery information stored in the battery information storage device. In various cases in which a battery model applied to a system changes or various battery models are applied to a single system, the battery management device automatically recognizes characteristics of the different battery models, which allows the battery to be managed according to the optimized management standards suitable for the characteristics of the battery. | 05-08-2014 |
20140139228 | MASS DISTRIBUTION INDICATION OF FLOW BATTERY STATE OF CHARGE - An electrochemical device includes at least one electrochemical cell having an anode electrode and a cathode electrode, a reservoir configured to store an electrolyte and a mass distribution measuring device. The mass distribution measuring device includes at least one of a scale, a first pressure sensor located in a lower portion of the reservoir and a second pressure sensor located in an upper portion of the reservoir, or at least one strain gauge or load cell configured to measure a change a weight of the at least one electrochemical cell. | 05-22-2014 |
20140139229 | System and Method for Improving Chemical Efficiency of a Battery in a Flow Measurement System - Systems and methods for powering a measurement system are provided. In some aspects, a system includes a high energy density electric cell, storing energy for powering the measurement system; a rechargeable electric cell, being charged by the high energy density electric cell and providing high current bursts to the measurement system; and a charging control device, coupled between the high energy density electric cell and the rechargeable electric cell, and enabling the high energy density electric cell to charge the rechargeable electric cell. The high energy density electric cell operates at a current which allows the high energy density electric cell to be in its optimal zone of chemical efficiency. | 05-22-2014 |
20140139230 | METHOD AND APPARATUS FOR DETERMINING A CHARGE STATE - Described are methods and devices by which a charge state of a battery can be determined. The determination is made in various embodiments by substantially separating a load, and detecting voltages associated with the battery, and by including adjustments based on operating conditions of the battery. | 05-22-2014 |
20140152313 | BATTERY SENSOR - The invention relates to a battery sensor for a battery, in particular a motor vehicle battery, with a pole terminal ( | 06-05-2014 |
20140152314 | Mass Distribution Indication of Flow Battery State of Charge - An electrochemical device includes at least one electrochemical cell having an anode electrode and a cathode electrode, a reservoir configured to store an electrolyte and a mass distribution measuring device. The mass distribution measuring device includes at least one of a scale, a first pressure sensor located in a lower portion of the reservoir and a second pressure sensor located in an upper portion of the reservoir, or at least one strain gauge or load cell configured to measure a change a weight of the at least one electrochemical cell. | 06-05-2014 |
20140159734 | CURRENT SENSE - A current sense circuit for measuring a charge level of a battery is disclosure. The circuit comprising:
| 06-12-2014 |
20140159735 | DEVICE FOR MONITORING THE VOLTAGE OUTPUT BY THE CELLS OF AN ELECTROCHEMICAL GENERATOR - An electrochemical generator comprises a stack of cells in series. To control the voltage across the terminals, controlling means comprise, for each cell, a first reactive passive component, the impedance varying depending on the DC voltage across its terminals, being biased by the voltage delivered by the cell, and a second reactive or resonant passive component forming, with the first reactive passive component, a series or parallel resonant circuit having a preset nominal resonant frequency for a nominal biasing voltage delivered by the cell. Using a variable frequency signal generator to supply the resonant circuits allows a detection circuit to detect resonant peak(s) across the terminals. The divergence between the resonant frequency corresponding to a detected peak and the nominal resonant frequency indicates the state of the associated cell. The frequency differences directly, for their part, provide information on the uniformity of the cells with respect to each other. | 06-12-2014 |
20140159736 | DETERIORATION STATE ESTIMATION APPARATUS AND DETERIORATION STATE ESTIMATION METHOD FOR SECONDARY BATTERY - An estimation apparatus of estimating a deterioration state of a secondary battery has a current sensor measuring an electric current of the secondary battery, a current estimating section estimating the electric current of the secondary battery by using a battery model, and a deterioration estimating section estimating a second deterioration component produced in association with a salt concentration imbalance in the secondary battery. The deterioration estimating section estimates the second deterioration component by using the measured current obtained from the current sensor, the estimated current obtained from the current estimating section, and a first deterioration component produced in association with wear of the secondary battery. The deterioration estimating section corrects the estimated current by using a ratio between a resistance change rate of the secondary battery when the second deterioration component is eliminated and a resistance change rate during charge and discharge of the secondary battery. | 06-12-2014 |
20140167773 | SECONDARY-BATTERY MAXIMUM-CAPACITY MEASURING APPARATUS - A secondary-battery maximum-capacity measuring apparatus, includes: a current dependency processing unit configured to convert an inter-terminal voltage and an open cell voltage of a secondary battery into values without depending on a load current based on an amount of change in relative value of a voltage during a time period when a constant current is drawn from the secondary battery; and an error calculation unit configured to compute errors of the inter-terminal voltage and the open cell voltage of the secondary battery, the inter-terminal voltage and the open cell voltage being converted by the current dependency processing unit. | 06-19-2014 |
20140167774 | CHARGING TIME ESTIMATION DEVICE AND CHARGING TIME ESTIMATION METHOD - A charging time estimation device includes a cell temperature information acquisition unit, a cell capacity information acquisition unit, a current value information acquisition unit, a deterioration state information acquisition unit, a basic estimated value calculation unit, and a charging-required time calculation unit. The charging-required time calculation unit performs correction on a basic estimated value of a constant current charging time and a basic estimated value of a constant voltage charging time by using current value information and deterioration state information, and calculates, as a charging-required time, the sum of the basic estimated value of the constant current charging time after the correction and the basic estimated value of the constant voltage charging time after the correction. | 06-19-2014 |
20140176141 | BATTERY STATE MONITORING DEVICE AND BATTERY MODULE HAVING THE SAME - A battery state monitoring device includes a substrate in which a through-hole disposed to be opposite to a safety valve of a battery is formed, a sensor which includes a positive electrode end and a negative electrode end and which is provided on the substrate, a first interconnector which is connected to the positive electrode end of the sensor on the substrate and which is disposed to pass along a part of a periphery of the through-hole, and a second interconnector which is connected to the negative electrode end of the sensor on the substrate and which is disposed to pass along a part of the periphery of the through-hole. The first interconnector and the second interconnector are disposed to extend along each other at the periphery of the through-hole. | 06-26-2014 |
20140176142 | METHOD FOR DIAGNOSING FAULT OF FUEL CELL STACK - Disclosed herein is a method for diagnosing a fault of a fuel cell stack, the method including: applying a summed current obtained by summing first and second frequencies to the fuel cell stack; diagnosing whether or not a fault has been generated in the fuel cell stack using a higher frequency of first and second frequencies of output voltages of the fuel cell stack; and reconfirming whether or not the fault has been generated in the fuel cell stack using the first and second frequencies in the output voltage of the fuel cell stack. | 06-26-2014 |
20140176143 | METHOD FOR GENERATING INJECTED CURRENT OF FUEL CELL STACK - Disclosed herein is a method for generating an injected current of fuel cell stack, including: generating a synthesized frequency current in a form in which a first frequency current is synthesized with a second frequency current; and applying the synthesized frequency current to the fuel cell stack, wherein the first frequency current and the second frequency current are each used to calculate at least one of total harmonic distortion and impedance. According to the embodiment of the present invention, a hardware configuration may be reduced by applying the synthesized frequency current of the AC current for calculating the total harmonic distortion (THD) and the AC current for calculating the impedance to the fuel cell stack, without generating the AC current for calculating the total harmonic distortion (THD) and the AC current for calculating the impedance, respectively, thereby reducing a price and a size of the fuel cell stack. | 06-26-2014 |
20140176144 | METHOD FOR DIAGNOSING FAULT OF FUEL CELL STACK - Disclosed herein is a method for diagnosing a fault of a fuel cell stack, including: applying a summed current obtained by summing currents of different frequency regions to the fuel cell stack; passing output voltages of the fuel cell stack through each of the different frequency filters to extract the respective diagnosis data; and diagnosing whether or not a fault has been generated in the fuel cell stack using the respective diagnosis data. Therefore, it is possible to further improve diagnosis analysis capability by applying the summed current obtained by summing the currents of the different frequency regions to the fuel cell stack and then rapidly diagnosing the fault of the fuel cell stack using the diagnosis data obtained by filtering the output voltages of the fuel cell stack. | 06-26-2014 |
20140176145 | METHOD AND APPARATUS FOR DIAGNOSING FAULT OF FUEL CELL STACK BASED ON MEASUREMENT OF STACK CURRENT - Provided is an apparatus and method for diagnosing a fault of a fuel cell stack based on measurement of a stack current. The apparatus includes an alternating-current (AC) generation circuit configured to apply an AC to a fuel cell stack driven by a basic operating current (direct-current: DC), a current measurement circuit configured to measure a current of the fuel cell stack caused by the DC applied to the fuel cell stack, and a Micom configured to diagnose a fault of the fuel cell stack on the basis of a current measurement result of the current measurement circuit. | 06-26-2014 |
20140176146 | METHOD FOR DETERMINING A POWER LEVEL OF A BATTERY AND CIRCUIT THEREFOR - A remaining battery power calculation circuit includes: a detection unit configured to detect an output voltage of a battery; a data storage unit configured to store data in an associated manner with each of a plurality of current values for charge or discharge of the battery, the data indicating a relationship between the output voltage and a ratio of remaining power of the battery to a capacity of the battery in a case where the battery is charged or discharged with each of the plurality of current values; and a first calculation unit configured to calculate a charging/discharging current of the battery based on the data and the output voltage. | 06-26-2014 |
20140184233 | METHOD FOR CHECKING DETERIORATION OF BATTERY - A method of checking deterioration of a battery includes: measuring a power input by a charger in a specific SOC range, when the battery is being charged; and determining a current deterioration rate of the battery by applying the measured power to a function having, as an input, a power input in the specific SOC range and, as an output, a deterioration rate of the battery. | 07-03-2014 |
20140184234 | STORAGE CELL STATE NOTIFYING SYSTEM, STORAGE CELL STATE NOTIFYING METHOD, AND STORAGE CELL STATE NOTIFYING PROGRAM - There is provided a storage cell state notifying system capable of properly determining a frequency to notify a state of a storage cell being monitored. The storage cell state notifying system includes a storage cell state measuring means | 07-03-2014 |
20140191763 | DETECTION DEVICE FOR LITHIUM-ION BATTERY - The present disclosure provides a detection device for lithium-ion battery, which comprises an insulative housing having a receiving chamber; an insulative separator positioned between the positive electrode sheet and the negative electrode sheet when the positive electrode sheet and the negative electrode sheet are received in the receiving chamber; a positive electrode sheet conductive fastener passing through the insulative housing and fixedly connected to a positive electrode current collector at a positive electrode current collector non-film-coating region; a negative electrode sheet conductive fastener passing through the insulative housing and fixedly connected to a negative electrode current collector at a negative electrode current collector non-film-coating region; an insulative cover engaged with the insulative housing and the insulative separator; a positive electrode region detection hole communicated to the positive electrode sheet gas region; and a negative electrode region detection hole communicated to the negative electrode sheet gas region. | 07-10-2014 |
20140197840 | Lighting Apparatus - A lighting apparatus of the present invention includes: a light source; a power source unit arranged to power the light source; a detector unit arranged to detect the deterioration of ability of the power source unit to power the light source; and a determination unit arranged to determine the life of the power source unit in response to the detector unit. | 07-17-2014 |
20140203812 | ENERGY STORAGE UNIT CONNECTION INFORMATION ACQUIRING APPARATUS - An energy storage unit connection information acquiring apparatus that acquires information for connecting a plurality of energy storage units in parallel, each energy storage unit including one or more energy storage elements connected in series, the connection information acquiring apparatus including: a connectable range acquiring unit that acquires a connectable range by determining the connectable range that is a range of energy storage units that can be connected in parallel among the plurality of energy storage units; and a charge/discharge information acquiring unit that acquires information for charging or discharging a connected energy storage unit group such that at least one energy storage unit outside the connectable range can be connected in parallel to the connected energy storage unit group that is composed of the energy storage units in the connectable range that are connected in parallel. | 07-24-2014 |
20140210479 | DEVICE FOR MEASURING AN ELECTRIC CURRENT - The invention relates to a device for measuring an electric current between a vehicle battery and an electrical consumer connected to the vehicle battery. The claimed device includes a bus bar which picks up the electric current in the vehicle battery and guides it further to the electrical consumer, on which a first current sensor and a second current sensor which is different from the first current sensor are arranged, the current sensors being designed to measure, independently from each other, the electric current circulating in the bus bar. | 07-31-2014 |
20140210480 | METHOD OF TESTING SECONDARY BATTERY - A method of testing a secondary battery includes step A of charging the secondary battery to a predetermined charge voltage, step B of setting aside the secondary battery for a predetermined time (tb) after the step A, step C of discharging the secondary battery to a predetermined discharge voltage after the step B, and step D of detecting a battery voltage increase for a preset time (t2) after a predetermined time (t1) has elapsed after the step C. This method of testing a secondary battery can evaluate a measurement of how much the negative electrode active material layer covers the positive electrode active material layer based on the battery voltage increase detected in the step D. | 07-31-2014 |
20140218040 | METHOD FOR ESTIMATING THE STATE OF CHARGE OF A BATTERY, AND BATTERY MANAGEMENT SYSTEM USING THE METHOD - A method of estimating a state of charge (SOC) of a battery and a battery management system (BMS) using the method. According to the method of estimating the SOC of the battery, terminal voltage data is collected by periodically measuring a terminal voltage of the battery. Voltage data of a low frequency component is extracted by performing discrete wavelet transform (DWT) based multi-resolution analysis on the terminal voltage data. The SOC of the battery is estimated based on the voltage data of the low frequency component. | 08-07-2014 |
20140232410 | STATE OF CHARGE ESTIMATION DEVICE AND METHOD OF ESTIMATING STATE OF CHARGE - A state of charge estimation device for estimating a state of charge of an electric storage device includes a voltage measurement component, a current measurement component, and a controller component. The controller component is configured to, when estimation of state of charge of the electric storage device based on an accumulated amount of currents measured by the current measurement component is defined as a current accumulation method and the estimation based on an open circuit voltage (OCV) of the electric storage device measured by the voltage measurement component is defined as an OCV method, permit estimation of state of charge by the OCV method when a condition that an error in estimation of state of charge of the electric storage device by the current accumulation method exceeds an error in estimation of state of charge of the electric storage device by the OCV method is satisfied. | 08-21-2014 |
20140232411 | SYSTEM AND METHOD FOR BATTERY MONITORING - A method and system for estimating the state-of-charge (SOC) and state-of-health (SOH) of a battery is disclosed. The method of the invention accurately determines the battery SOC by estimating the values of the recurring constants determined by the battery parameters based on the current and SOC values obtained during the charging and discharging cycle of the battery. | 08-21-2014 |
20140239962 | FUEL CELL INSPECTION METHOD AND INSPECTION DEVICE - A fuel cell inspection method includes: applying DC voltage of a first voltage value, in a first period, to a power generation element that has an electrolyte membrane, an anode-side catalyst layer disposed on one side of the electrolyte membrane, and a cathode-side catalyst layer disposed on the other side of the electrolyte membrane; and applying, to the power generation element, DC voltage of a second voltage value that is lower than the first voltage value, in a second period after the first period; and detecting a value of current flowing in the power generation element. | 08-28-2014 |
20140239963 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND MANUFACTURING METHOD AND EVALUATION METHOD THEREOF (AS AMENDED) - A non-aqueous electrolyte secondary battery according to the present invention includes a positive electrode, a negative electrode, and a non-aqueous electrolyte solution. The negative electrode includes a coating derived from lithium bis(oxalate)borate. Assuming that an intensity of a peak attributable to a three-coordinate structure of the coating measured by an XAFS method is represented by a and an intensity of a peak attributable to a four-coordinate structure of the coating measured by the XAFS method is represented by β, the coating formed on the surface of the negative electrode satisfies a condition of α/(α+β)≧ | 08-28-2014 |
20140247052 | WIRELESS POWER SUPPLY SYSTEM, POWER TRANSMISSION DEVICE, AND POWER RECEIVING DEVICE - A wireless power supply system includes a power transmission device capable of transmitting power to a plurality of power receiving devices by a magnetic field resonance method. The power transmission device includes a detection unit configured to detect an amount of charge of each of the plurality of power receiving devices, a determination unit configured to determine, if the amount of charge of a certain power receiving device is not increased even when a predetermined time has elapsed since start of power transmission to the certain power receiving device, whether a cause of failure to increase the amount of charge is the power transmission device or the certain power receiving device, based on the amount of charge of any other power receiving device detected by the detection unit, and a notification unit configured to transmit a notification about the determination result by the determination unit. | 09-04-2014 |
20140253134 | ELECTRONIC DEVICE AND METHOD FOR DETECTING THE AMOUNT OF CHARGE OF A BATTERY - An electronic device and a corresponding method for detecting the amount of charge of a battery are provided. The electronic device includes a battery, a detector, and a processor. The battery provides the electric energy needed by the electronic device. The detector detects a parameter of the battery. The parameter is related to the amount of charge of the battery. The detector sends a signal when the parameter changes. The processor obtains the parameter from the detector in response to the signal. | 09-11-2014 |
20140266221 | METHOD AND SYSTEM FOR DETERMINING A BATTERY ELEMENT VOLTAGE - A method for estimating the voltage of a battery element of a vehicle battery system is provided. The method comprises providing a balancing/sensing circuit having a series combination of a balancing switch and a balancing resistive element electrically connected in parallel with the battery element, and measuring the voltage across the combination of the balancing switch and balancing resistive element when the balancing switch is presumed to be in a “closed” state. The method further comprises deriving a compensated value for the measured voltage using empirically-derived data, wherein the compensated value compensates for a voltage drop occurring in the balancing/sensing circuit when the balancing switch is in the “closed” state and represents an estimate of the voltage of the battery element. A battery system is also provided that includes a battery element, a balancing/sensing circuit, a sensor, and a control module configured to perform the method described above. | 09-18-2014 |
20140266222 | METHOD AND SYSTEM FOR ESTIMATING VOLTAGE OF A BATTERY ELEMENT - A method for estimating the voltage of a battery element of a battery system is provided. In one embodiment, the method comprises providing a balancing/sensing circuit having a series combination of a balancing switch and a balancing resistive element electrically connected in parallel with the battery element, and measuring the voltage across the balancing switch/balancing resistive element combination when the switch is presumed to be in a “closed” state.” The method further comprises deriving a compensated value for the measured voltage by applying a calculated compensation factor to the measured voltage, the compensated value compensating for a voltage drop occurring in the balancing/sensing circuit when the balancing switch is in the “closed” state and represents an estimate of the battery element voltage. A battery system is also provided that includes a battery element, a balancing/sensing circuit, a sensor, and a control module configured to perform the method described above. | 09-18-2014 |
20140266223 | ESTIMATING COOLANT CONDUCTIVITY IN A MULTI-VOLTAGE FUEL CELL SYSTEM - A coolant conductivity method and apparatus used to determine when a coolant, circulating through a vehicle's coolant system, starts to conduct electrical current and loses its electrical isolation properties. The system includes a battery monitor controller senses one or more isolation resistances placed throughout a fuel cell system and is programmed to run an isolation algorithm. The isolation algorithm opens and closes contactors in a specific order, measures the resistance of the one or more isolation resistances and calculates a coolant conductivity value. The system will indicate when the coolant needs to be replaced. | 09-18-2014 |
20140266224 | System And Method For Improved Accuracy In Battery Resistance Measurement Systems - A method is disclosed for reducing an influence of voltage ripple on battery test measurements of battery cells coupled in series that form a direct current (DC) bus. A calibration operation is used to obtain a ratiometric difference between first and second series connected battery cells of the DC bus, which is indicative of a variance in their respective output voltages. Voltage measurements across each of the two cells may then be obtained at least substantially simultaneously. The ratiometric difference may be used to modify the voltage measurement taken across the second cell to produce a modified voltage measurement of the second cell. A difference between the measured voltage across the first battery cell and the modified voltage measurement may then be determined, which represents a filtered DC test voltage that has substantially all of the voltage ripple removed therefrom. | 09-18-2014 |
20140266225 | CURRENT CLAMP WITH JAW CLOSURE DETECTION - A current clamp has a pair of jaws that are placed around an electrical conductor to measure a parameter (a measurable quantity or distinguishing or notable characteristic) corresponding to the electrical conductor. | 09-18-2014 |
20140285207 | Control Circuit for Determining a Charge Current of a Battery - This application relates a method and a control circuit for determining a charge current of a battery connected to a modulated load, wherein a current limited power source is connected in parallel to the modulated load and the battery for supplying a load dependent current up to a predetermined current limit to the modulated load and the battery. The control circuit comprises means for measuring a current flowing through the battery; means for indicating an overload condition of the current limited power source; and means for determining the charge current of the battery. The means for indicating an overload condition are configured to indicate an overload condition when a sum of a current drawn by the modulated load and a current flowing into the battery exceeds the predetermined current limit of the current limited power source. | 09-25-2014 |
20140292344 | ACCUMULATED POWER CONSUMPTION SENSOR: APPLICATION IN SMART BATTERIES SYSTEMS - A device is provided for monitoring the total current discharged from a battery. The device includes a bridge circuit of resistors in which one of the resistors has a resistance which varies according to the current which has passed through it. Whenever the battery passes a current to a load, a small portion of the current is passed through the bridge circuit. | 10-02-2014 |
20140300363 | In-situ Battery Monitoring System - The present disclosure provides a system, method, and apparatus for battery monitoring. In one or more embodiments, the disclosed method involves injecting at least one test signal into a battery, and receiving at least one response signal from the battery. In one or more embodiments, the response signal(s) comprises at least one reflected signal. The method further involves comparing, with at least one processor, the response signal(s) with at least one baseline signal to produce at least one comparison signal. Also, the method involves detecting, with at least one processor, at least one anomaly within the battery by using the comparison signal(s). Further, the method involves determining, with at least one processor, a location at least one anomaly within the battery by using the comparison signal(s). | 10-09-2014 |
20140300364 | BATTERY PACK - Provided is a battery pack, which can prevent a plurality of battery modules from being abnormally assembled. The battery pack may include n battery modules; n slave battery management systems (BMSs) corresponding to the n battery modules, the n slave BMSs respectively and sequentially coupled to each other; and a master BMS coupled to the n slave BMSs. Here, the master BMS is configured to apply a trigger signal to a first slave BMS, the first to (n−1)th slave BMSs are configured to transmit the trigger signal and first to (n−1)th signals, which are different from each other, to a next slave BMS, an nth slave BMS is configured to transmit an nth signal to the master BMS. | 10-09-2014 |
20140312910 | BATTERY MANAGEMENT SYSTEM AND DRIVING METHOD THEREOF - A battery management system includes a sensing unit and a main controller unit (MCU) is disclosed. In one aspect, the sensing unit is configured to measure a current value and a voltage value of a battery under a discharge condition of the battery. In addition, the MCU is configured to receive the current and voltage values and further configured to manage capacities of the battery based at least in part on the current and voltage values. In addition, the MCU includes a an unusable capacity calculating unit configured to calculate an unusable capacity corresponding to a portion of a theoretical maximum capacity of the battery that is unusable under the discharge condition, where the unusable capacity is calculated based at least in part on the current value and an internal resistance value of the battery under the discharge condition. | 10-23-2014 |
20140312911 | BATTERY - The present invention relates to a battery. The battery includes: a detecting apparatus, located inside the battery and on an anode or cathode end of the battery, and configured to detect an electric potential inside the battery; and a conducting wire, electrically connected to the detecting apparatus and insulated from the anode and cathode of the battery, and configured to export a value of the electric potential measured by the detecting apparatus. The battery according to embodiments of the present invention is provided with a built-in detecting apparatus, which is led out together with the anode and cathode of the battery by using the conducting wire electrically connected to the detecting apparatus. This design achieves accurate and reliable measurement of a potential at a single electrode. | 10-23-2014 |
20140312912 | Method and Circuitry to adaptively Charge a Battery/Cell - The present inventions, in one aspect, are directed to techniques and/or circuitry to adapt the charging of a battery using data which is representative of an overpotential or relaxation time (full or partial) of the battery. In another aspect the present inventions are directed to techniques and/or circuitry to calculate data which is representative of an overpotential or relaxation time (full or partial) of the battery. In yet another aspect the present inventions are directed to techniques and/or circuitry to calculate data which is representative of a state of charge of the battery using an overpotential or relaxation time (full or partial) of the battery. | 10-23-2014 |
20140312913 | BATTERY MONITORING APPARATUS AND BATTERY MONITORING SYSTEM - A battery monitoring apparatus comprises a reception section to receive a radio signal and to output power and a demodulated signal according to the radio signal; a first power source circuit to perform power supply based on the power; a decode circuit to operate upon receiving the power supply from the first power source circuit and to output an activation signal and a command based on the demodulated signal; a second power source circuit to be activated according to the activation signal and to perform power supply; a battery monitoring circuit to operate upon receiving the power supply from the second power source circuit and to output a monitoring result of a state of the battery according to the command; and a transmission section to operate upon receiving the power supply from the second power source circuit and to wirelessly transmit the monitoring result. | 10-23-2014 |
20140320140 | METHOD FOR DETERMINING COMPLETION OF DISCHARGE OF A WASTE BATTERY AND DETERMINATION DEVICE - Provided is an efficient method for determining the completion of discharging waste batteries, the method being capable of accurately identifying the discharging states of the charge remaining in the waste batteries and appropriately determining the completion of discharging without measuring the residual voltage of each of the waste batteries. The method for determining the completion of discharging waste batteries according to the present invention is characterized in that after immersing the waste batteries in a conductive liquid, the concentration of hydrogen gas produced from the liquid is measured, thereby determining the completion of discharging the charge remaining in the waste batteries. | 10-30-2014 |
20140320141 | SECONDARY BATTERY CONTROL DEVICE AND SOC DETECTION METHOD - A control device of a secondary battery uses, as material of a positive electrode, positive electrode active material that shows a difference of an open circuit voltage curve between charging and discharging. A storing unit stores, as discharge open circuit voltage information, a relationship between an SOC in a discharge process and an open circuit voltage for each changeover SOC that is an SOC when changing a state of the secondary battery from the charge to the discharge. An SOC calculating unit calculates the SOC of the secondary battery in the discharge process on the basis of a changeover SOC when actually performing the change from the charge to the discharge and the discharge open circuit voltage information stored in the storing unit. It is therefore possible to properly detect the SOC during the discharge | 10-30-2014 |
20140320142 | METHOD AND SYSTEM FOR MEASURING ELECTRIC CURRENT - A system for measuring electric current supplied by an electric battery, for example a battery in a motor vehicle, including: a Hall effect current sensor; a device for compensating for measurement errors made by the sensor, including a mechanism applying an operation close to the inverse of an operator characterizing magnetic hysteresis of the sensor to the measured current. | 10-30-2014 |
20140327444 | Battery Monitoring Assembly Having Battery Monitor Module and Cable for Connection to a Shunt of the Module - A vehicle battery monitoring assembly includes a terminal connectable to a battery post, a shunt formed of a first metallic material, and a cable formed of a different second metallic material. The shunt is connected at one end to the terminal. The assembly further includes a sheet formed of the second metallic material. The sheet is attached on a portion of another end of the shunt. The cable is connected at one end to the sheet. | 11-06-2014 |
20140333312 | SOC DETERMINATION BY EVALUATION OF EFFECTS INVOKED BY DIMENSIONAL CHANGES OF BATTERY CELLS - A system and method for monitoring a state-of-charge (SOC) of a battery, where the system includes a sensor and a controller. The sensor provides a measurement signal that can track changes of a nominal volume of the battery by either measuring a size or pressure of the battery, where the nominal volume is the volume that the electrolyte, anode, cathode and current collectors would occupy if unconstrained. The controller is programmed to use a function to estimate the SOC from the measurement signal. The function can be established after constructing and finding a repeatable charging and discharging curve of the battery that graphs the measurement signal compared to the SOC of the battery. | 11-13-2014 |
20140333313 | APPLICATION INDEPENDENT MAP-BASED CYCLE LIFE TESTING OF BATTERY CELLS - A method and system for application independent map-based cycle life testing of battery cells is provided. A target depth of discharge (DOD) and a charge/discharge current level is selected for the battery test. The battery is discharged to the target DOD. The battery is cycled within the DOD range one or more times, wherein the cycling comprises a charge pulse and a discharge pulse at the selected current levels. A reference performance test (RPT) is performed on the battery, wherein the RPT comprises a static capacity test and a dynamic power test. The cycling and RPT testing are repeated until an end of test condition is detected. | 11-13-2014 |
20140333314 | CURRENT MEASURING CIRCUIT, BATTERY AND MOTOR VEHICLE - A current measuring circuit for redundantly measuring electrical current includes a measuring resistor, a magnetic field sensor, and an evaluation circuit on an evaluation circuit board. The evaluation circuit is used to determine electrical current using the measuring resistor. The magnetic field sensor on the evaluation circuit board and the evaluation circuit board are arranged in direct proximity to the measuring resistor such that the magnetic field sensor is configured to detect the magnetic field from the current-carrying resistor. A battery includes the current measuring circuit and a motor vehicle includes the battery. | 11-13-2014 |
20140333315 | MONITORING SYSTEM AND VEHICLE - An object is to provide, at low costs, a function for determining whether a monitoring section should execute a self-diagnosis. A monitoring system has a monitoring section for acquiring information on the charge and discharge state of an electric storage device and a determination section for determining the charge and discharge state of the electric storage device on the basis of information acquired by the monitoring section. The determination section has an output section for continuously outputting, to the monitoring section, a stepped signal made up of a High signal and a Low signal, and as well, when the charge and discharge state of the electric storage device has been determined to fall within an allowable range on the basis of the information acquired from the monitoring section, outputs a diagnosis permit signal that is a unique stepped signal having a period different from that before the determination, and when the signal received from the determination section has been determined to be the diagnosis permit signal, the monitoring section executes a self-diagnosis for detecting an abnormal event in the monitoring section. | 11-13-2014 |
20140333316 | FUEL CELL SYSTEM - A fuel cell system comprises: a fuel cell formed of a plurality of cells stacked therein, each cell generating electric power through an electrochemical reaction between a fuel gas and an oxidant gas; a cell monitor capable of detecting a group voltage for each group wherein each group is composed of two or more cells; and an estimation device that estimates a minimum cell voltage. The estimation device comprises a maximum cell voltage estimation part that estimates a maximum cell voltage, and the estimation device estimates the minimum cell voltage by using an estimated value of the maximum cell voltage and a minimum group-average voltage, where an average voltage of a group having the lowest voltage value among the group voltages is defined as the minimum group-average voltage. | 11-13-2014 |
20140340091 | METHOD FOR MEASURING ELECTRIC CHARGE OF A BATTERY - A method for measuring electric charge of a battery is provided. The method includes the following steps. A lookup table is provided that stores a plurality of preset measurement confirmation voltages and a plurality of set electric charge. A first voltage of the battery is measured as a start point. An end point is calculated according to the lookup table and the start point. A voltage and a current of the battery are measured until a measured voltage reaches a preset measurement confirmation voltage corresponding to the end point. A set electric charge is calculated according to the lookup table from the start point to the end point. An actual electric charge is calculated from the start point to the end point. The set electric charge is corrected according to a difference between the actual electric charge and the set electric charge. | 11-20-2014 |
20140347057 | APPARATUS AND METHOD FOR PROVIDING BATTERY INFORMATION, AND USER TERMINAL THEREFOR - A battery information providing apparatus includes a short-range communication module for performing short-range communication; an information detector for detecting battery information; and a microprocessor for controlling the battery information to be transmitted by the short-range communication module. | 11-27-2014 |
20140347058 | METHOD FOR MONITORING A STATE OF A RECHARGEABLE BATTERY BASED ON A STATE VALUE WHICH CHARACTERIZES THE RESPECTIVE STATE OF THE RECHARGEABLE BATTERY - A method for monitoring a state of a rechargeable battery based on a state value which characterizes the respective state of the rechargeable battery, characterized in that, during at least one time interval, an electrical energy which is output by the rechargeable battery and an electrical energy which is received by the rechargeable battery are detected, and in that an instantaneous state of charge or an instantaneous no-load voltage of the rechargeable battery is detected, wherein the detected electrical energy which is output by the rechargeable battery, the detected electrical energy which is received by the rechargeable battery and the respectively detected instantaneous state of charge or the respectively detected instantaneous no-load voltage of the rechargeable battery are evaluated in order to generate the state value. | 11-27-2014 |
20140354289 | METHOD FOR PREDICTING CHARGING TIME OF BATTERY FOR ELECTRIC VEHICLE - A method for predicting charging time of a battery for an electric vehicle is provided. The method includes differentiating a rapid charging and a slow charging. A necessary charging amount of the battery is calculated, and a reference current value that is stored in advance is detected for slow charging. A time required for slowly charging a battery is calculated using the necessary charging amount and the reference current value. | 12-04-2014 |
20140368205 | Electronic Device and Methods Therein - A battery cell is configured to operate in within an electronic device. Determining the status of the battery cell includes using a strain gauge attached to the battery cell. A value of the dimension of the battery cell is established by use of the strain gauge. The status of the battery cell is determined based on the established dimension value compared to a reference value and a threshold related to the dimension of the battery cell. Related methods, devices and/or computer program products are described. | 12-18-2014 |
20140368206 | BATTERY CONTROL DEVICE - A battery control device includes an acquisition portion that acquires measured values on the battery state every predetermined period, and a determination processing portion that determines the battery state. The determination processing portion determines that the battery state is abnormal when the number of times the measured value is out of a given range reaches a threshold until the measured value is acquired a predetermined standard number of times. If the number of times the measured value is out of range is less than the threshold when the measured number is acquired the standard number of times, the determination of the battery state is performed for an extended period until the number of times the measured value is out of the range reaches the threshold, or until the measured number is within the range, based on the measured value acquired more than the standard number of times. | 12-18-2014 |
20140375325 | BATTERY WITH REFERENCE ELECTRODE FOR VOLTAGE MONITORING - A lithium-ion battery structure with a third electrode as reference electrode is disclosed. The reference electrode may be fabricated from lithium metal, lithiated carbon, or a variety of other lithium-containing electrode materials. A porous current collector allows permeation of reference lithium ions from the reference electrode to the cathode or anode, enabling voltage monitoring under actual operation of a lithium-ion battery. The reference electrode therefore does not need to be spatially between the battery anode and cathode, thus avoiding a shielding effect. The battery structure includes an external reference circuit to dynamically display the anode and cathode voltage. The battery structure can result in improved battery monitoring, enhanced battery safety, and extended battery life. | 12-25-2014 |
20150008929 | Apparatus for Detecting the State of a Rechargeable Battery to be Checked - An apparatus for detecting the state of a checkable storage battery in a vehicle having at least two vehicle onboard power supply systems of different operating voltages is provided. The vehicle onboard power supply systems are coupled by a DC/DC converter, which converts a first DC voltage of a first vehicle onboard power supply system into a second DC voltage of the storage battery in the second vehicle onboard power supply system. The vehicle onboard power supply systems have a control device that includes a test signal module configured to supply a test signal via the DC/DC converter to the checkable storage battery, a measured value detection module configured to measure the reaction values of the checkable storage battery, and an evaluation module configured to detect the state of the storage battery from the measured reaction values. | 01-08-2015 |
20150008930 | VOLTAGE MONITORING CIRCUIT, TEST METHOD THEREFOR, AND VOLTAGE MONITORING SYSTEM - A voltage monitoring circuit includes a plurality of voltage input terminals which input a voltage across each of a plurality of series-coupled battery cells, a selection circuit which, by selecting two of the voltage input terminals, selects a voltage across one of the battery cells, an A/D converter which converts the voltage across the battery cell into a digital value, a control unit which sends the digital value to an external controller, a ground wiring which is coupled to a ground terminal for inputting a ground level voltage for the voltage monitoring circuit, the ground terminal being among the voltage input terminals, and through which the voltage monitoring circuit is supplied with the ground level voltage, a terminal which is supplied with a lowest fixed potential, and a switch circuit which is coupled between the first terminal and the ground wiring. | 01-08-2015 |
20150015267 | INTEGRATED STANDARD-COMPLIANT DATA ACQUISITION DEVICE - An integrated standard-compliant data acquisition device includes an electrically insulating package including a plurality of conductive leads and an integrated circuit (IC) disposed within the electrically insulating package and electrically coupled to at least some of the plurality of conductive leads. The IC includes a first multiplexer (MUX), a second MUX, a third MUX, an analog-to-digital converter (ADC), a plurality of registers, a fourth MUX, control logic, and communication circuitry. In operation, a first circuit value under a first condition can be determined and stored, a second circuit value under a second condition can be determined and stored, and the decision as to whether there is a fault condition can be mad by comparing the first circuit value and the second circuit value. | 01-15-2015 |
20150022213 | BATTERY SENSING CIRCUIT PATH RESISTANCE COMPENSATION SYSTEMS AND METHODS - System and methods for measuring parameters of a battery system using a battery sensing circuit are presented. In certain embodiments, the systems and methods allow a vehicle battery sensing circuit and/or other associated system to measure a compensation parameter. The compensation parameter may be utilized by the battery sensing circuit and/or other associated system in measuring other parameters relating to the battery system including cell voltages. | 01-22-2015 |
20150028878 | BATTERY SYSTEM AND CHARGE/ DISCHARGE MEASURING APPARATUS - The present invention provides a charge/discharge measuring apparatus capable of appropriate charge/discharge management by accurately measuring a capacitance change of a secondary battery in charge/discharge. This charge/discharge measuring apparatus is configured such that a current from the secondary battery can be switched between a first connection circuit in which the secondary battery, a load resistor, and a conductor film are connected in series and a second connection circuit in which the secondary battery, a charger, and the conductor film are connected in series. Moreover, this charge/discharge measuring apparatus has a magnetic film arranged in parallel with the conductor film and connected in parallel with connection from the secondary battery to the load resistor and the charger and has a voltage detecting means for detecting a voltage change in the magnetic film. | 01-29-2015 |
20150035540 | BATTERY POWER DETECTING DEVICE AND METHOD - A battery power detecting device and method are provided. It can detect the battery power of a battery rod in a non-disposable electronic cigarette. The battery power detecting device includes a spare battery unit, a current sampling unit, a voltage sampling unit, a charging control unit, a main control unit, and a power display unit. The main control unit is configured to control the charging control unit to adjust and output the voltage provided by the spare battery unit according to the charging current sampled by the current sampling unit, in order to make the charging current equal to a preset current. Then, the main control unit calculates the battery power of the battery rod according to the charging voltage currently sampled by the voltage sampling unit, and finally controls the power display unit to display the battery power of the battery rod. | 02-05-2015 |
20150042349 | VOLTAGE MEASUREMENT - Apparatus comprises a charging terminal for connection to a source of charging current; a battery terminal for connection to a battery; a first resistive element; a second resistive element; a switch having a single pole and first and second throws; and a voltage measurement circuit having first and second inputs. The first throw of the switch is coupled to a node between the battery terminal and the second resistive element. The second throw of the switch is coupled to a node between the charging terminal and the first resistive element. The first resistive element is coupled between the charging terminal and the second resistive element. The second resistive element is coupled between the battery terminal and the first resistive element. The pole of the switch is coupled to a first input of the voltage measurement circuit. | 02-12-2015 |
20150054518 | Sensor apparatus for a battery cell of an electrical energy store, battery cell, method for producing said cell and method for transmitting sensor data inside said cell - A sensor apparatus for a battery cell of an electrical energy reservoir is provided, which battery cell has a housing. The sensor apparatus has: a sensing device for sensing sensor data with regard to the battery cell, which sensing device is located inside the housing of the battery cell and has a coupling element for inductive emission of the sensor data and for inductive reception of electrical power; an evaluation device for evaluating the sensor data, which evaluation device is located inside or outside the housing of the battery cell and has a transfer element for inductive transfer of electrical power to the sensing apparatus and for inductive reception of the sensor data from the sensing apparatus. | 02-26-2015 |
20150061686 | Method for detecting lithium battery - The present invention relates to a method for detecting lithium battery. In the present invention, the method for detecting lithium battery is provided for executing the two pulse load test and AC impedance analysis to determine not only whether the state of health (SOH) of lithium battery is working or not, but also the SOH of battery would be precisely estimated to obtain the precise SOH and to avoid detection error resulted in substantial waste of resources. | 03-05-2015 |
20150061687 | BATTERY MANAGEMENT SYSTEM AND OPERATING METHOD THEREOF - A battery management system (BMS) is disclosed. In one aspect, the BMS includes a measuring unit, a pulse applying unit and a main controller unit (MCU). The measuring unit measures the voltage of a battery. The pulse applying unit applies a current pulse to the battery, the current pulse having a predetermined amplitude and period. The MCU calculates a polarization voltage based on the measured voltage and estimates a state of health (SOH) of the battery using a polarization voltage. | 03-05-2015 |
20150070021 | BATTERY MODULE PRINTED CIRCUIT BOARD ASSEMBLY SYSTEM AND METHOD - A battery module includes a housing, a plurality of battery cells disposed in the housing, and a printed circuit board (PCB) assembly disposed in the housing. The PCB assembly includes a PCB and a shunt disposed across a first surface of the PCB. A second surface of the shunt directly contacts the first surface of the PCB, and the shunt is electrically coupled between the battery cells and a terminal of the battery module. | 03-12-2015 |
20150070022 | BATTERY RECOMMENDED REPLACEMENT TIME INDICATOR SYSTEM - A method of generating at least one recommended replacement time signal for a battery is provided. The method includes measuring a plurality of associated unloaded and loaded battery voltages. A delta voltage for each associated unloaded and loaded battery voltage is then determined. A select number of delta voltages are averaged. A minimum delta voltage is determined from a plurality of the averaged delta voltages. At least one recommended replacement time signal for the battery is generated with the use of the minimum delta voltage when at least one averaged delta voltage is detected that has at least reached a replacement threshold. | 03-12-2015 |
20150070023 | BATTERY MONITORING DEVICE AND BATTERY SYSTEM MONITORING DEVICE - A battery monitoring device for monitoring a cell group made by connecting a plurality of single battery cells in series including a first switching circuit configured to select, as a measurement target voltage, a type of voltage a differential amplifier circuit including a first input terminal and a second input terminal, configured to convert the measurement target voltage, which is selected by the first switching circuit and input between the first input terminal and the second input terminal, into a voltage in a predetermined range by performing differential amplification, and an AD converter configured to measure the measurement target voltage selected by the first switching circuit and converted by the differential amplifier circuit, and output a digital signal according to the measurement result, wherein an abnormality detection voltage, is output to the AD converter. | 03-12-2015 |
20150077123 | BATTERY CAPACITY DISPLAYING SYSTEM FOR WIRELESS PERIPHERAL DEVICE - A battery capacity displaying system includes a host, a display device in communication with the host, and a wireless peripheral device. The display device is connected with the host. The display device is in communication with the host, and includes a triggering element. When the triggering element is pressed, a wireless signal containing a battery capacity data is transmitted from the wireless peripheral device to the host. After the wireless signal is received by the host, a residual battery capacity corresponding to the battery capacity data is displayed on the display device. Consequently, the user can realize the residual battery capacity of the wireless peripheral device at any appropriate time according to the practical requirements. | 03-19-2015 |
20150077124 | ASSEMBLED BATTERY MODULE AND DISCONNECTION DETECTING METHOD - An assembled battery module includes battery cells connected in series, resistors, a voltage measuring unit, failure detection switches, and a control unit. Each resistor is connected between a positive or negative electrode of the corresponding battery cell and a corresponding node for the positive or negative electrode. Each failure detection switch is connected between the two nodes corresponding to positive and negative electrodes of a battery cell to allow on-off switching between the two nodes. The control unit detects a disconnection between a positive or negative electrode of a battery cell to a corresponding node based on first and second voltages measured between two nodes, the first voltage being measured when one of the two failure detection switches connected to the corresponding node is switched from on to off and the second voltage being measured when the other failure detection switch is switched from on to off. | 03-19-2015 |
20150084638 | CURRENT MEASUREMENT DEVICE - A current measurement device includes a measurement part that is constituted by including a resistance part having a predetermined electric resistance value and a pair of current collector parts for extracting a potential difference generated by a current that flows the resistance part; a potential difference detector that is connected to the pair of current collector parts and detects a potential difference generated in the resistance part; and a current detector that detects the current that flows through the inside of a fuel cell. The measurement part is disposed to be integrated with one separator of the pair of separators and the pair of current collectors is disposed so as to overlap with the resistance part when seen from a direction orthogonal to the stacking direction of the cells. | 03-26-2015 |
20150091578 | MANUFACTURING METHOD FOR SECONDARY BATTERY - A method of manufacturing for a secondary battery. The secondary battery is configured to include an electrode group in a battery package. The electrode group includes a positive electrode, a negative electrode, and a separator. The manufacturing method includes: (a) measuring a first voltage drop amount of the secondary battery with the passage of time in a state in which a compression force in a direction crossing a lamination direction of the electrode group is applied to the electrode group via the battery package; (b) measuring a second voltage drop amount of the secondary battery with the passage of time in a state in which the compression force is released; and (c) detecting a small short circuit of the secondary battery by comparing the first voltage drop amount and the second voltage drop amount. | 04-02-2015 |
20150102815 | VOLTAGE SENSING SYSTEM AND METHOD - A voltage sensing system for a vehicle traction battery having a plurality of cells includes: a battery controller, a plurality of electrical circuits, each being respectively connected to at least one of the cells and including an electrical component for limiting current therethrough, and a plurality of wires, each being respectively connected to one of the electrical circuits in series with a respective one of the electrical components for limiting current and the controller. | 04-16-2015 |
20150102816 | Apparatus And Method For Identifying Batteries Of Different Thicknesses, And Electronic Device - An apparatus and method for identifying batteries with different thickness, and an electronic device thereof, the apparatus comprises a buckle switch arranged at a position close to battery compartment in the electronic device, and a control circuit connected with the buckle switch. When a thin battery is mounted in the electronic device, the state of the buckle switch is ON; and when a thick battery is mounted in the electronic device, the state of the buckle switch is OFF. According to the ON/OFF state of the buckle switch, the control circuit identifies whether a thin battery or a thick battery is mounted in the electronic device. The apparatus and method can identify whether a thin battery or a thick battery is used in the electronic device, and thereby can adopt different drivers to manage the battery. | 04-16-2015 |
20150102817 | SHORT-CIRCUIT DETECTION APPARATUS FOR DETECTING SHORT CIRCUITS OF A BATTERY CELL AND METHOD FOR SHORT-CIRCUIT DETECTION - A short-circuit detection apparatus for detecting short circuits ( | 04-16-2015 |
20150108989 | Distinguishing Batteries in a Recycling Stream - Examples are disclosed herein that relate to identifying batteries of different chemistries such as in a battery recycling stream. One example provides a method for differentiating between batteries of different chemistries, the method comprising determining an expected mass of a sample of one or more batteries based upon an expected chemistry of the sample of one or more batteries, weighing the sample of one or more batteries to determine a sample mass, comparing the sample mass to the expected mass, and if the sample mass does not match the expected mass within a threshold range, then determining that the sample contains one or more batteries of a different chemistry than the expected chemistry. | 04-23-2015 |
20150108990 | POWER CELL SYSTEM WITH MEANS FOR DETECTING A DISCONTINUITY - A power cell system, e.g. a fuel cell system, having a plurality of power cells, e.g. fuel cells and plurality of first resistances, the plurality of power cells and first resistances being connected in the form of a ladder circuit, and electronic filters each having a first connection to a first node between two of the first resistances, each electronic filter comprising a second resistance and a charge storage device connected to the second resistance. | 04-23-2015 |
20150115968 | Ultrasonic Device Detecting Charging / Discharging Status of Flow-Cell Pack - A device is provided for detecting a charging and discharging status of a flow-cell pack. During charging and discharging course of the flow-cell pack coordinated with electrolyte storage tanks and actuators, ultrasonic sensors of ultrasonic detection devices are used to sense sonic vibration generated by fluid flow in the flow-cell pack. Thus, the charging and discharging status of the flow-cell pack is detected for adjusting related parameters. The present invention has a simple structure, runs without using extra power supply, does not hinder performance of flow cell, and obtains charging and discharging status of flow cell accurately and rapidly. | 04-30-2015 |
20150115969 | STORAGE BATTERY ANALYSIS SYSTEM, STORAGE BATTERY ANALYSIS METHOD AND STORAGE BATTERY ANALYSIS PROGRAM - A storage battery analysis system includes a storage device storing data of time series variation of a voltage value and a current value during a charging period of a storage battery and data of time series variation of the voltage value and the current value during the charging period of the storage battery; and an arithmetic device that executes a process to read out the time series variation data of the voltage value and the current value during the charging period of the battery, compares the read time series variation data, identifies a difference in the time series variation between the initial usage period and the analysis period, and stores in the storage device the difference as an index indicating a degradation state of the storage battery. | 04-30-2015 |
20150123668 | DETECTION CIRCUIT AND ELECTRONIC TERMINAL - Disclosed are a detection circuit and an electronic terminal The detection circuit is applied in the electronic terminal and configured to detect a real-time working current of the electronic terminal The circuit comprises: a resistor ( | 05-07-2015 |
20150130469 | ELECTRIC VEHICLE BATTERY CONTACTOR SWITCH MONITORING - Contactor switches between a multi-cell battery pack and an electric vehicle load are monitored. A main microcontroller having a chassis ground is digitally isolated from positive and negative busses of the battery pack. A battery monitoring IC having a plurality of auxiliary/thermistor A/D inputs measures respective voltages of battery cells. An evaluation switch is connected to a junction between a first contactor switch and the load. The evaluation switch is activated in response to a command received from the main microprocessor. A voltage divider is coupled between the output of the evaluation switch and the negative bus to provide a divided voltage output to one of the auxiliary/thermistor A/D inputs. The battery monitoring IC transmits a digital value representative of the divided voltage output to the main microprocessor via a serial data link, and the main microprocessor determines a state of the contactor in response to the digital value. | 05-14-2015 |
20150130470 | METHOD FOR DETERMINING A MAXIMUM VOLTAGE VALUE OF A LOAD SIGNAL BY SAMPLING - A method for determining, by sampling at a given frequency, a maximum voltage value of a load signal of at least one motor vehicle battery cell, the load signal to be sampled being rectified and sinusoidal and having a frequency that is higher than the sampling frequency, the method including: determining a sampling frequency, a measurement time at the sampling frequency, and a related inaccuracy, measuring a load voltage with the predetermined sampling frequency and with the predetermined measurement time, and determining a maximum load voltage. | 05-14-2015 |
20150137820 | BATTERY FUEL GAUGES USING FET SEGMENT CONTROL TO INCREASE LOW CURRENT MEASUREMENT ACCURACY - A circuit comprises a battery field-effect transistor (FET) coupled between a battery and an electronic system so that current from the battery flows through the battery FET to the electronic system. A replica FET couples the battery to a current sensing circuit. One of the battery FET and the replica FET comprises a plurality of parallel FET segments having separate control terminals. A logic block provides a plurality of switch control signals based on a system state input. A switching circuit receives the switch control signals and selectively couples the separate control terminals of the FET segments to one of a first reference voltage terminal or a second reference voltage terminal to independently turn each FET segment on or off. The current sensing circuit provides a voltage indicative of the current flowing through the replica FET. | 05-21-2015 |
20150137821 | ASSEMBLED-BATTERY VOLTAGE DETECTION DEVICE - An assembled-battery voltage detection device for detecting a voltage at an assembled-battery including a plurality of single batteries connected in series includes: single-battery voltage detection circuits detecting voltages at the respective single batteries; single-battery voltage detection terminals connected to ends of the single batteries; connectors connecting the single-battery voltage detection terminals and the single batteries; voltage detection terminals detecting a voltage at one of the single batteries located at one end in the assembled battery; an assembled-battery voltage detection circuit detecting a potential difference between the voltage detection terminals; a single-battery voltage sum calculator calculating a sum of the voltages detected by the single-battery voltage detection circuits; an end-battery voltage abnormality determination unit determining whether the voltage at the single battery located at the end is 0 V; and an abnormality output unit outputting an abnormality depending on predetermined conditions. | 05-21-2015 |
20150137822 | APPARATUS AND METHOD FOR ESTIMATING SOC OF SECONDARY BATTERY INCLUDING BLENDED CATHODE MATERIAL - Disclosed is an apparatus and method for estimating a SOC of a secondary battery containing a blended cathode material. The SOC estimating apparatus estimates a SOC of a secondary battery including a cathode having a blended cathode material containing a first cathode material and a second cathode material with different operating voltage ranges, an anode having an anode material, and a separator for separating the cathode from the anode, and the apparatus includes a sensor configured to measure a discharge inception voltage and a final discharge voltage when the secondary battery is discharged for a predetermined time, and a control unit configured to estimate SOC of the secondary battery corresponding to the measured discharge inception voltage and the measured final discharge voltage by using a predetermined relationship between the discharge inception voltage and the final discharge voltage and the SOC of the secondary battery. | 05-21-2015 |
20150293179 | TEST ARRANGEMENT OF AN ENERGY STORAGE DEVICE - For an efficient, economical and at the same time flexibly usable or configurable test arrangement for energy storage devices consisting of a plurality of energy storage modules each comprising a plurality of energy storage units, it is proposed that an AC/DC converter ( | 10-15-2015 |
20150293181 | SECONDARY BATTERY TESTER - Provided is a simple secondary battery tester that obtains, without applying an AC signal for determination based on capacitance, the capacitance of a secondary battery from time characteristics of a current flowing to the secondary battery and a terminal voltage and determines whether the secondary battery is degraded based on the capacitance thus obtained. | 10-15-2015 |
20150295284 | Electrochemical Energy Cell, and Rechargeable Battery for Repeatedly Storing Electrical Energy, and also Method for Determining an Electrode Potential of an Electrode of an Electrochemical Energy Storage Cell - An electrochemical energy storage cell is configured to repeatedly store electrical energy, and includes two electrodes, and at least one reference electrode element to enable determining an electrode potential of at least one of the two electrodes. A rechargeable battery, and in particular to a rechargeable lithium-ion battery, includes the electrochemical energy storage cell, and is configured to supply electrical energy to an electrical load. A method includes determining an electrode potential of at least one of the two electrodes with reference to the at least one reference electrode element. | 10-15-2015 |
20150301113 | VEHICLE BATTERY MONITORING SYSTEM - A battery monitoring system includes a self-contained measurement device configured to mount to a battery cell. The self-contained measurement device includes a sensor configured to monitor an operational parameter of the battery cell, and a communication module configured to output a signal indicative of the operational parameter. | 10-22-2015 |
20150301123 | PERFORMANCE DETERIORATION DETECTING APPARATUS AND PERFORMANCE DETERIORATION DETECTING METHOD FOR ENERGY STORAGE DEVICE, AND ENERGY STORAGE SYSTEM - A performance deterioration detecting apparatus detects an initial state of sudden deterioration in performance of an energy storage device as a performance deterioration start state, and includes: a first acquiring unit configured to acquire a first maximum variation amount as a maximum value of a capacity variation amount that is a degree of variation in current carrying capacity relative to variation in voltage of the charged or discharged energy storage device, regarding a capacity-voltage property at a first time point, indicating relation between the capacity variation amount and the voltage; a second acquiring unit configured to acquire a second maximum variation amount as a maximum value of the capacity variation amount regarding the capacity-voltage property at a second time point after the first time point; and a performance deterioration determiner configured to determine that the energy storage device is in the performance deterioration start state at the second time point if a variation amount ratio as a ratio of the second maximum variation amount to the first maximum variation amount exceeds a predetermined value. | 10-22-2015 |
20150318583 | COMMUNICATION SYSTEM IN AN ELECTRIC BATTERY - A system in a battery in which a plurality of elementary cells are connected between two first nodes. The system includes: a first device configured to apply an alternating signal to the first nodes; at least one second device connected to the second nodes of the cells; and at least one resonant element, an inductive element of which includes an inductance itself of the battery between the two nodes. | 11-05-2015 |
20150323607 | METHOD FOR ADJUSTING A CURRENT SENSOR - A method for adjusting a current sensor with a measuring element having a broken rational current-voltage characteristic curve, including:—changing the broken rational profile of the broken rational current-voltage characteristic curve of the measuring element on the basis of at least one predetermined condition. | 11-12-2015 |
20150331053 | METHOD AND DEVICE FOR CHARACTERISING A MODULE FOR STORING ENERGY VIA A CAPACITIVE EFFECT - A device is provided for characterising at least one element for storing energy via a capacitive effect. The device includes a measuring component for measuring the voltage across the terminals of the storing element and another measuring component for measuring the current flowing through the storing element, having response times of the same order of magnitude. The device includes a controller for controlling the measuring component and a calculator for calculating a statistical quantity from the measurements taken. The controller is configured to control the measuring component so that the voltage-measurement period and the current-measurement period overlap temporally by at least 70%, especially 90%, of a total period including the voltage and current-measurement periods. A method is also provided for characterising an element for storing energy via a capacitive effect and to an assembly including at least one element for storing energy via a capacitive effect and a characterising device. | 11-19-2015 |
20150331054 | VOLTAGE DETECTING DEVICE - Disclosed herein is a voltage detecting device including: an analog converting circuit configured to level-convert voltages of a plurality of battery cells constituting a battery into low voltages; a digital converting circuit configured to convert the low voltages output by the analog converting circuit into digital values; and a control circuit configured to be driven by a power supply provided separately to control the digital converting circuit; the analog converting circuit being driven by a first power generated from the plurality of battery cells, and the digital converting circuit being driven by a second power generated on a basis of a pulse signal generated by the control circuit. | 11-19-2015 |
20150338470 | WIRELESS BATTERY MANAGEMENT CONTROL AND MONITORING SYSTEM - A battery management system using a sensor inside of the battery that sensor enables monitoring and detection of various events in the battery and transmission of a signal from the sensor through the battery casing to a control and data acquisition module by wireless transmission. The detection of threshold events in the battery enables remedial action to be taken to avoid catastrophic events. | 11-26-2015 |
20150362557 | STATE DETECTING METHOD AND STATE DETECTING DEVICE OF SECONDARY BATTERY - A state detecting method and device of a secondary battery correct impact resulting from state quantities caused by variation and calculate a state of charge with high accuracy. The state detecting method includes a first step of acquiring a detected voltage value and a detected current value, a second step of acquiring state quantities caused by variation such as a detected temperature value, a third step of determining if the detected voltage value is the voltage threshold value or greater, a fourth step of determining if the detected current value is the current threshold value or less, a fifth step of determining if a duration time of the current threshold value or less has elapsed a determination time, a sixth step of setting a state of charge in a reference state as the state of charge, and a seventh step of correcting the state of charge in the reference state. | 12-17-2015 |
20150369871 | STATE-OF-CHARGE ESTIMATION DEVICE AND STATE-OF-CHARGE ESTIMATION METHOD - A state-of-charge estimation device includes a transition estimation unit, when a transition from a charge mode to a discharge mode starts, which starts current integration by use of a measured current and obtains a second state of charge by use of a first state of charge at the start of the transition and a current integration value, so as to estimate that the second state of charge is a state of charge upon transition until a target state of charge is reached that is determined by a current integration value obtained for a predetermined time period after the start of the transition, and/or when a transition from a discharge mode to a charge mode starts, which starts current integration by use of a measured current and obtains a sixth state of charge by use of a third state of charge at the start of the transition and a current integration value. | 12-24-2015 |
20150377948 | SYSTEM AND METHOD FOR DIFFERENTIATING SHORTING IN A BATTERY - A system for differentiating short circuiting in a battery includes: a detector coupled to the battery; a monitor in communication with the detector, the monitor including a profile of a battery shorting behavior, and a comparator for matching data from the detector to the profile; and a controller for taking action based upon information from the detector. A method for detecting short circuiting in a battery includes the steps of: detecting a behavior of the battery; comparing the behavior of the battery to a predetermined battery behavior profile; determining the type of short based on the comparison; and taking mitigating action based on the determination. The system/method may monitor: temperature of the battery, heat generation from the battery, current flow through the battery, voltage drop across the battery, and/or combinations thereof. The system/method discriminates between the various battery shorting behaviors for aggressive response or passive response. | 12-31-2015 |
20150377973 | VOLTAGE MONITORING DEVICE - A voltage monitoring device has a capacitor circuit having capacitors connected in series, first switches connecting end terminals of the capacitor circuit to specific electrode terminals of unit cells in a battery pack, second switches connecting remaining electrode terminals of the unit cells to the connection nodes between the capacitors, first voltage detection sections corresponding to each of the capacitors, a second voltage detection section connected to the end terminals of the capacitor circuit, and a microcomputer which selectively performs a first process of charging each capacitor, and a second process of charging the capacitors simultaneously. The respective specific electrode terminals correspond to the unit cells, and are arranged at an interval corresponding to the number of connection nodes formed between the capacitors. The microcomputer performs a polarity switching process of adjusting for the adjacent capacitors to have a same polarity of the charged voltage before performing the second process. | 12-31-2015 |
20150377977 | METHODS FOR TESTING A BATTERY AND DEVICES CONFIGURED TO TEST A BATTERY - A method for testing a battery may be provided. The method may include: bringing the battery to a pre-determined voltage; determining a parameter of the battery, the parameter of the battery including at least one of an entropy of the battery at the pre-determined voltage or an enthalpy of the battery at the pre-determined voltage; and determining an ageing history of the battery based on the determined parameter. | 12-31-2015 |
20160011270 | INSPECTION AID | 01-14-2016 |
20160018468 | 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 |
20160018470 | METHOD AND SYSTEM FOR CALCULATING ACCURATE BATTERY PERCENTAGE USAGE IN WIRELESS FIELD DEVICES - Methods and systems are disclosed herein for accurately calculating battery consumption in a wireless field device. The total current consumed by a radio board associated with a wireless field device can be determined based on the sum of the current consumed as a result of particular events occurring at the radio board. The current consumed by a sensor board of the wireless field device can then be averated with respect to particular type of sensor. The current consumed by the radio board and the current consumed by the sensor board in the wireless field device can be combined to calculate a predictive value indicative of a remaining life of a battery associated with the wireless field device. | 01-21-2016 |
20160054389 | BATTERY STATE DETERMINATION DEVICE - This battery state determination device ( | 02-25-2016 |
20160061867 | METHOD AND APPARATUS FOR METERING A VOLTAGE SIGNAL - A voltage metering module for metering a voltage signal at least one analogue to digital converter (ADC) component arranged to receive at an input thereof a voltage signal and to generate a digital signal representative of the received voltage signal. The at least one ADC component includes at least one sampling network controllable to sample the received voltage signal for conversion to a digital signal representative of the received voltage signal and at least one compensation network operably coupled in parallel with the sampling network and controllable to sample the received voltage signal such that an input current of the compensation network at least partially compensates for a component of an input current of the sampling network. | 03-03-2016 |
20160061874 | ABNORMALITY DETECTION CIRCUIT FOR POWER STORAGE DEVICE, AND POWER STORAGE DEVICE INCLUDING SAME - An abnormality detection circuit detects an abnormality in a power storage device. A positive electrode terminal and a negative electrode terminal respectively receive a positive electrical potential and a negative electrical potential from a converter. A power storage module includes plural cells connected in series between the positive electrode terminal and the negative electrode terminal. The abnormality detection circuit includes a voltage detection circuit and a control circuit. The voltage detection circuit detects an electrical potential of an intermediate node located at an intermediate position between the positive electrode terminal and the negative electrode terminal on a basis of a ground potential. The control circuit determines an abnormality of the power storage module based on a change in an intermediate ground potential from voltage detection circuit from the ground potential. | 03-03-2016 |
20160061901 | Battery System Monitoring Device - A battery system monitoring device includes a plurality of battery monitoring circuits, which is respectively provided in cell groups, and a balancing resistor. Each of the battery monitoring circuits includes a cell voltage measurement unit to measure a cell voltage of each single battery cell at predetermined timing, a discharge switch to switch a state of a discharge current which flows from each single battery cell through the balancing resistor, and a balancing control unit configured to control the discharge switch. A filter circuit is connected between the cell voltage measurement unit and each single battery cell. The cell voltage measurement unit determines whether a cell voltage is measured within a transient response period corresponding to a time constant of the filter circuit and corrects a measurement value of a cell voltage by using a correction value correcting a result of the determination. | 03-03-2016 |
20160061903 | APPARATUS FOR MONITORING VOLTAGE ACROSS ANY UNIT BATTERY IN BATTERY PACK - In an apparatus, an input switch circuit selectively connects one of unit batteries to a capacitor. A first group of at least one unit battery has a first polarity when being connected to the capacitor. A second group of at least one unit battery has a second polarity when being connected to the capacitor. A voltage converter converts a voltage of a unit battery selectively connected to the capacitor into a value within a voltage range manipulatable by a voltage monitor. A reference voltage setter variably sets a reference voltage according to one of the first polarity and the second polarity of the voltage of a unit battery selectively connected to the capacitor. The reference voltage is used as a reference to match a scale of the voltage of a unit cell selectively connected to the capacitor for each of the first and second polarities with the predetermined voltage range. | 03-03-2016 |
20160069945 | Method for Detecting a Faulty Connection of an Auxiliary Battery - A method for detecting a faulty connection of an auxiliary battery ( | 03-10-2016 |
20160069960 | COULOMB COUNTING USING ANALOG-TO-FREQUENCY CONVERSION - In an analog-to-frequency converting circuit, a set of switches receive a first sense signal indicative of a current and provides a second sense signal that alternates between an original version of the first sense signal and a reversed version of the first sense signal, under control of a switching signal. An integral comparing circuit integrates the second sense signal to generate an integral value and generates a train of trigger signals. Each trigger signal is generated when the integral value reaches a preset reference. A compensation circuit compensates for the integral value with a predetermined value in response to each trigger signal. A control circuit generates the switching signal such that a time interval during which the second sense signal is the original version and a time interval during which the second sense signal is the reversed version are substantially the same. | 03-10-2016 |
20160069961 | SYSTEM FOR MANAGING A BATTERY AND METHOD THEREOF - A system for managing a battery may comprise: an interruption determiner configured to determine an interruption of a vehicle battery voltage; a State Of Charge(SOC) calculator configured to calculate the SOC of the vehicle battery and reset the SOC if the interruption of the battery voltage occurs; and an After Sale Service(AS) generation determiner configured to determine whether the AS of a vehicle component is performed if the interruption of the battery voltage does not occur. | 03-10-2016 |
20160069965 | SYSTEMS AND METHODS FOR TESTING BATTERY TAB ELECTRICAL CONNECTION QUALITY - Systems and methods for determining the quality of battery cell tab electrical connections are presented. In certain embodiments, a first electrical current may be supplied between a first tab group and a second tab group of a battery cell group. A first voltage drop may be measured between the first tab group and the second tab group and a measured cell group resistance may be determined based on the measured first voltage drop. The measured cell group resistance may be compared with a reference cell group resistance to determine a quality of an associated battery cell tab electrical connection. | 03-10-2016 |
20160077159 | BATTERY TESTER - A system for monitoring battery status and estimating battery life including a battery monitor configured to connect to a battery. The battery monitor comprises a voltage detection circuit, a temperature sensor and a wireless transmitter configured to transmit voltage and temperature data measured by the voltage detection circuit and the temperature sensor. The system further includes a remote device operative to receive battery voltage and temperature data from the battery monitor, generate a real-time indication of battery voltage, and generate predicted battery life data. | 03-17-2016 |
20160079635 | CHARGING AND DISCHARGING INSPECTION DEVICE AND CHARGING AND DISCHARGING INSPECTION METHOD FOR THIN SECONDARY BATTERY - A plurality of batteries is stacked, together with spacers, in a compressed state. Charging and discharging units are arranged facing lead terminals protruding from the batteries and are independently operable for the respective batteries. The charging and discharging units each independently include substantially V-like shaped power-side and measurement-side contact elements elastically supported by compression coil springs and having floating freedom. When the batteries are moved all together toward the charging and discharging units, front end surfaces of the lead terminals are pressed against and electrically connected to flat surfaces of the power-side and measurement-side contact elements. By this, it is possible to smoothly perform charging and discharging inspection on the batteries even when the lead terminals protruding from the battery package are subjected in advance to surface treatment. | 03-17-2016 |
20160084912 | METHOD FOR CORRECTING VOLTAGE SENSOR INCLUDED IN BATTERY RACK - The present invention discloses a method for correcting a voltage sensor. Because a plurality of battery racks are electrically connected to a power storage apparatus in parallel, a voltage sensor connected to each of the battery racks can be influenced by the voltage of other adjacent battery racks when measuring the voltage of each of the battery racks. Therefore, after electrically connecting only one battery rack to the voltage sensor, the voltage value measured by the corresponding voltage sensor is corrected. | 03-24-2016 |
20160091570 | SYSTEM FOR MEASURING A STACK CELL VOLTAGE OF A FUEL CELL AND METHOD THEREOF - A system for measuring a stack cell voltage of a fuel cell according to the present invention comprises: a stack voltage measuring unit which measures a stack voltage of a stack cell battery for each channel; a correction variable calculating unit which calculates a correction variable by using the stack voltage value measured by the stack voltage measuring unit; and a stack voltage value correcting unit which corrects the stack voltage measured by the stack voltage measuring unit on driving by using the correction variable. | 03-31-2016 |
20160097815 | VOLTAGE MEASUREMENT FOR MULTIPLE CELL BATTERY PACK - A method and apparatus to detect cell voltage of each of a plurality of battery cells in a rechargeable battery pack is disclosed. The method comprises generating a square wave form with a positive phase and a negative phase, sending the square wave form to a first circuit that is connected to a battery cell and to a second circuit with matching components of the first circuit, and finally driving a matching voltage of the second circuit to become equivalent to the battery cell voltage for measurement. | 04-07-2016 |
20160099487 | BATTERY SENSOR POSITIONER, BATTERY SENSOR ASSEMBLY EQUIPPED WITH SAME, AND BATTERY SENSOR - A battery sensor assembly ( | 04-07-2016 |
20160103182 | SECONDARY BATTERY STATUS DETECTION DEVICE AND SECONDARY BATTERY STATUS DETECTION METHOD - [Object] To accurately detect a state of a secondary battery when the secondary battery is mounted on a vehicle. | 04-14-2016 |
20160103183 | 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. | 04-14-2016 |
20160103187 | Inspection Device - An inspection device | 04-14-2016 |
20160116539 | Device for Monitoring Electricity Generation and Method for Monitoring Electricity Generation - A device for monitoring electricity generation comprising: an acquirer that acquires a total value of cell voltage from multiple cells including fuel cells; an increaser that increases the anode gas now rate to the multiple cells when the total value shows a possibility of negative voltage occurring in some of the multiple cells; and a judger that judges if negative voltage occurred in some of the multiple cells based on the total value following the increase of the anode gas flow rate. | 04-28-2016 |
20160124051 | BATTERY FUEL GAUGE - A system includes a battery; an analog-to-digital converter coupled to the battery and capable of measuring an output voltage of the battery; a processor, receiving measured battery output voltages from the analog-to-digital converter; the processor using a first equivalent circuit model of the battery to estimate battery current when the battery operation is static; and the processor using a second equivalent circuit model of the battery to estimate battery current when the battery operation is dynamic. | 05-05-2016 |
20160131718 | BATTERY MONITORING SYSTEM, SEMICONDUCTOR CIRCUIT, LINE-BREAKAGE DETECTION PROGRAM, AND LINE-BREAKAGE DETECTION METHOD - The present invention appropriately detects line-breakages in a signal line related to a battery connected to a discharge circuit for discharging. Namely, an initialization operation produces a state in which a capacitor (C | 05-12-2016 |
20160139208 | REMAINING BATTERY CAPACITY INDICATOR - A power supply path b (b | 05-19-2016 |
20160139209 | BATTERY STATE DETECTION APPARATUS AND METHOD FOR MANUFACTURING SAME - A battery state detection device includes a casing ( | 05-19-2016 |
20160146895 | Accurate Assessment of the State of Charge of Electrochemical Cells - Provided are methods, systems and devices for thermodynamically evaluating electrochemical systems and components thereof, including electrochemical cells such as batteries. The present systems and methods are capable of monitoring selected electrochemical cell conditions, such as temperature, open circuit voltage and/or composition, and carrying out measurements of a number of cell parameters, including open circuit voltage, time and temperature, with accuracies large enough to allow for precise determination of thermodynamic state functions and materials properties relating to the composition, phase, states of charge, health and safety and electrochemical properties of electrodes and electrolytes in an electrochemical cell. Thermodynamic measurement systems of the present invention are highly versatile and provide information for predicting a wide range of performance attributes for virtually any electrochemical system having an electrode pair. | 05-26-2016 |
20160146898 | METHOD FOR ESTIMATING STATE OF HEALTH OF A BATTERY IN A HYBRID VEHICLE - A method for estimation of state-of-health (SOH) characteristics of a battery in hybrid vehicles includes charging and discharging the battery at least one time within an upper region of a state-of-charge (SOC) window, wherein the battery; charging and discharging the battery at least one time within a lower region of the SOC window, calibrating a battery management unit included in the hybrid vehicle by using the reached levels outside the SOC window and estimating the SOH characteristics of the battery during the charge and discharge periods by using the battery management unit. | 05-26-2016 |
20160161564 | TEST METHOD FOR SECONDARY BATTERY - A test method for a secondary battery, which early detects the occurrence of the future micro short-circuiting in the screening and promotes to render the contaminant harmless while suppressing the short-circuiting between the positive and negative electrodes in the aging, is provided. This test method includes Step S | 06-09-2016 |
20160164126 | DEVICE AND METHOD FOR MONITORING DRYNESS OF FUEL CELL STACK - A device and a method for monitoring dryness of a fuel cell stack can accurately determine whether the fuel cell stack is dry or not, to ensure smooth operation and performance of the fuel cell stack during operation of a fuel cell vehicle. The device includes a voltage sensing unit that monitors voltage of the fuel cell stack in real time; a current sensing unit that monitors current of the fuel cell stack in real time; a counting unit that compares the monitored voltage with a standard current-voltage performance curve; and a stack dryness determining unit that determines that the fuel cell stack is dry when a count determined by the counting unit is a standard level or more. | 06-09-2016 |
20160178701 | BATTERY MONITORING APPARATUS | 06-23-2016 |
20160178702 | BATTERY MONITORING APPARATUS | 06-23-2016 |
20160178704 | DETERMINING CHEMISTRY OF A BATTERY FOR AN ELECTRONIC DEVICE | 06-23-2016 |
20160187431 | Storage battery, storage-battery evaluating device, and storage-battery evaluating method - A storage battery includes power storage devices in series and switching circuits each arranged between adjacent power storage devices. Each switching circuit includes an input terminal I, an output terminal O, an input terminal Si, and an output terminal So, a first switch that electrically connects the input terminal Si and the output terminal O, a second switch that electrically connects the input terminal I and the output terminal So, a third switch that electrically connects the input terminal I and the output terminal O, and a fourth switch that electrically connects the input terminal Si and the output terminal So. The input terminal Si is electrically connected to the output terminal So of one of adjacent switching circuits and the output terminal So is electrically connected to the input terminal Si of the other of the adjacent switching circuits. | 06-30-2016 |
20160195584 | SEMICONDUCTOR DEVICE | 07-07-2016 |
20160202322 | ELECTROMECHANICAL ADAPTER | 07-14-2016 |
20160252580 | LITHIUM-ION ENERGY STORE AND METHOD FOR DETECTING A DEPTH OF DISCHARGE AND/OR A STATE OF CHARGE OF A LITHIUM-ION ENERGY STORE | 09-01-2016 |
20160252581 | BATTERY FUEL GAUGE CURRENT SENSING CIRCUIT AND METHOD THEREOF | 09-01-2016 |
20180024197 | Bus-Based Information Collection System With Micro Power Consumption For Battery Packages | 01-25-2018 |