Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Battery monitoring

Subclass of:

702 - Data processing: measuring, calibrating, or testing

702001000 - MEASUREMENT SYSTEM IN A SPECIFIC ENVIRONMENT

702057000 - Electrical signal parameter measurement system

702060000 - Power parameter

Patent class list (only not empty are listed)

Deeper subclasses:

Entries
DocumentTitleDate
20130030739DEVICE AND METHOD FOR DETERMINING DETERIORATION OF SECONDARY BATTERY - A secondary battery is implemented as an assembly of a plurality of battery modules. An ECU calculates a deterioration indicator quantitatively indicating a degree of deterioration of a battery module for each of the plurality of battery modules, and detects as a module to be replaced, a battery module of which deterioration indicator has reached a prescribed replacement level. The ECU further extracts a module to additionally be replaced, which should be replaced simultaneously with the module to be replaced above, from battery modules of which deterioration indicator has not reached the replacement level, among the plurality of battery modules.01-31-2013
20130030738Converging algorithm for real-time battery prediction - A method predicts the battery state in “real-time”, which is based on a nodal algorithmic model. Under this method, the battery is modeled as a network mesh of both linear and non-linear electrical branch elements. Those branch elements are inter-connected through a set of nodes. Each node can have several branches either originating or ending into it. The branch elements may represent loosely some particular function or region of the battery or they may serve a pure algorithmic function. The non-linear behavior of the elements may be described either algorithmically or through lookup tables. Kirchhoff's laws are applied on each node to describe the relationships between currents and voltages. The system may be connected with a battery so that it can receive measured values at the battery, and the system yields state-of-charge, state-of-health, and state-of- function signals.01-31-2013
20130030737DEVICE FOR CALCULATING IMPEDANCES OF BATTERY CELL AND BATTERY IMPEDANCE MEASURING SYSTEM - There is provided a device for calculating impedances of a battery cell for respective frequency domains. The device includes: a Fourier transformation calculator configured to perform Fourier transformation on voltage waveform data and current waveform data, which are output from the battery cell, and calculate an impedance of the battery cell by dividing a Fourier transformation data of the voltage waveform data by a Fourier transformation data of the current waveform data; a circuit constant estimator configured to estimate circuit constants of a predetermined equivalent circuit model of the battery cell, based on the impedance calculated by the Fourier transformation calculator; and an impedance estimator configured to estimate impedances of the battery cell for respective frequency domains, based on the estimated circuit constants and the equivalent circuit mode.01-31-2013
20130030736BATTERY DEGRADATION DETERMINATION DEVICE, BATTERY DEGRADATION DETERMINATION METHOD AND BATTERY DEGRADATION DETERMINATION SYSTEM - A battery degradation determination device includes a fitting module configured to fit AC impedance measurement data into an equivalent circuit model including at least one circuit block in which a resistance and a constant phase element are connected in parallel, and to obtain circuit constants in the equivalent circuit model, a P-value saving module configured to save P values being index of the constant phase element obtained by fitting AC impedance measurement data of a reference battery to the equivalent circuit model, and a degradation determination module configured to perform degradation determination for a battery as a determination target based on circuit constants obtained by fitting AC impedance measurement data of the battery as a determination target to the equivalent circuit model with the use of the P values as fixed values, with reference to correlations between degrees of battery degradation and the circuit constants in the equivalent circuit model.01-31-2013
20130030735RACK SERVER SYSTEM AND CONTROL METHOD THEREOF - A rack server system and a control method thereof are provided. The rack server system establishes a communication link for communicating with a battery backup unit. The battery backup unit is connected to a power input port of the rack server system, and includes a number of battery modules connected with each other in parallel. The rack server system controls the battery backup unit to perform validity test on a first battery module during a first period and to perform validity test on a second battery module during a second period, wherein the first period and the second period are not overlapped with each other.01-31-2013
20110178746PORTABLE DEVICE, BATTERY PACK, DISPLAY CONTROLLING METHOD, AND DISPLAY CONTROLLING PROGRAM - A portable device driven by a secondary battery which is chargeable and dischargeable, the portable device including a full charge detecting unit configured to detect full charge of the secondary battery in receipt of a report of the full charge and acquires capacity data indicative of a capacity of the secondary battery, a memory controlling unit configured to store the capacity data acquired by the full charge detecting unit in a memory unit, and a display control unit configured to cause a display unit of the portable device to display the capacity data stored by the memory controlling unit in chronological order.07-21-2011
20100161260SYNCHRONIZED DATA SAMPLING SYSTEMS AND METHODS - A battery management system with synchronized data sampling for a battery pack including multiple battery cells is disclosed. The battery management system includes a plurality of local monitors coupled to a plurality of battery cells and operable for sampling status information for the battery cells. The battery management system further includes a central controller coupled to the local monitors and operable for broadcasting a sample command to the local monitor synchronously, wherein the local monitors start to sample the status information for the battery cells in response to the sample command.06-24-2010
20100161257Battery wireless link - An apparatus and method for wireless communication with a battery. A sensed condition associated with the battery is provided to a microcontroller which relays this information to a wireless module for communication with a host device or remote receiver.06-24-2010
20090171599Battery Discharge Indicator For Golf Car - A system is disclosed for determining battery state-of-charge (SoC) in an electric vehicle. The system includes an inverter that converts battery power to an alternating current, a current sensor that generates a signal indicative of a magnitude and direction of the alternating current, a first analog-to-digital converter (A2D) that converts the signal to current data, and a central processing unit (CPU) that periodically stores a present value of the current data to an associated memory and determines the SoC based on the stored current data.07-02-2009
20120203483Method and Circuitry to Calculate the State of Charge of a Battery/Cell - The present inventions, in one aspect, are directed to techniques and/or circuitry to determine the state of charge of a battery/cell using data which is representative of an overpotential of the battery/cell. In yet another aspect the present inventions are directed to techniques and/or circuitry to adaptively charge a battery/cell using data which is representative of a state of charge of the battery/cell and/or the data which is representative of an overpotential of the battery/cell.08-09-2012
20110208453CIRCUIT-BASED METHOD FOR ESTIMATING BATTERY CAPACITY - A method for providing state of charge (SOC) estimations is disclosed. The method may comprise: receiving a battery having a nominated capacity; measuring an initial SOC of the battery; discharging the battery and measuring a sequence of time-based discharge characteristics; measuring a total operating time and a total consumed capacity; providing a set of relationship equations derived from a circuit-based battery model having a variable capacitor; utilizing a computing module to perform data fitting of the set of relationship equations based on: the initial SOC, the nominated capacity, the total operating time, the total consumed capacity, and the sequence of discharge characteristics, the computing module being configured for determining values for a plurality of parameters of the set of relationship equations through said data fitting; and obtaining a remaining capacity estimation equation based on the set of relationship equations after the values for the plurality of parameters are determined.08-25-2011
20090192737METHOD FOR ESTIMATING LIFE STATUS OF LITHIUM BATTERY - A method for estimating a life status of a lithium battery applicable to a portable electronic device is described. The method includes the following steps. Firstly, a plurality of lithium battery life status intervals are sectioned out by a plurality of voltage-electric quantity curves representing characteristics of the lithium battery. Then, an actual voltage and an actual electric quantity of the lithium battery of the portable electronic device are measured. Afterwards, positions of the actual voltage and the actual electric quantity in the lithium battery life status intervals are determined to estimate the life status of the lithium battery.07-30-2009
20110196632BATTERY PACK MONITORING APPARATUS - The battery pack monitoring apparatus is for monitoring a battery pack constituted of battery blocks connected in series and each including battery cells connected in series. The battery pack monitoring apparatus includes a cell monitoring circuits provided respectively for the battery blocks, and a control circuit. Each of the cell monitoring circuits includes a cell voltage detection circuit to detect cell voltages of the battery cells included in a corresponding one of the battery blocks, and a block voltage detection circuit to detect a block voltage of the corresponding one of the battery blocks. The control circuit is configured to detect states of the battery cells based on the cell voltages and the block voltages transmitted from the respective cell monitoring circuits.08-11-2011
20100076704METHOD AND SYSTEM FOR DETERMINING A STATE OF CHARGE OF A BATTERY - Methods and systems for determining a state of charge of a battery are provided. A first component of the state of charge is calculated based on a first property of the battery. A second component of the state of charge is calculated based on a second property of the battery. The first component of the state of charge is weighted based on a rate of change of the first property relative to a change of the state of charge. The second component of the state of charge is weighted based on a rate of change of the second property relative to a change of the state of charge. The state of charge is determined based on the first and second weighted components.03-25-2010
20100076706Stand alone battery monitoring system with alert - A stand alone battery monitoring system coupled to a battery product having a positive pole and a negative pole having a housing, a battery monitoring electronics package contained within the housing, the electronics package having a controller with at least one of an at least one CPU, EEPROM(s), ADC(s), PWM(s), Digital Input(s), and Digital Output(s) and including a portion of memory for storage of data and software. A sensor is coupled to and communicates with the battery product and the controller, measuring at least a battery product voltage and a battery product temperature. Multiple code segments form software on the controller, the battery monitor software includes: an at least one code segment acquiring battery product data for at least a the battery product voltage and the battery product internal temperature from the at least one sensor, an at least one code segment filtering the acquired battery product data into modified battery product data and processing the modified battery product data against stored parameters; an at least one code segment storing the acquired, filtered, modified and compared battery product data in the portion of memory and retaining whole or in part the acquired, filtered, modified and compared battery product data to provide historical battery product data over the course of the life of the battery; an at least one code segment comparing the stored battery product data against threshold levels; and an at least one indicator on a wireless device, wherein if the at least one code segment comparing the stored battery product data against threshold levels determines that data is beyond those levels, it sends an alert wirelessly to a user via the wireless device and the at least one indicator element thereon.03-25-2010
20120245871BATTERY TESTER WITH HIGH PRECISION - The battery tester has a casing having an input device and two detecting wires, a microprocessor, a loading unit and a battery power status detecting unit. The microprocessor builds a strategic decision process therein to determine a loading time for a battery according to the battery capacity, battery voltage and detection requirements having 1/N CCA and a loading time input from the input device. Therefore, the battery tester detects batteries with different capacities and has accurate detecting results.09-27-2012
20130080094Device for Depth of Energy Prediction of a Battery and a Method for the Same - A device for predicting remaining capacity of a battery and a method for the same are disclosed. The device is embedded in a battery pack or externally coupled thereto. The device includes a program for proceeding an algorithm of cell capacity calculation, a database stored in a non-volatile memory having a table of open-circuit voltage, a table of current gain and a capacity conversion equation. The program generates a discharging curve according to the cell temperature and load accessed and corrects the database according to the battery voltage and the discharging curve and the coulomb counter.03-28-2013
20130080096ARITHMETIC PROCESSING APPARATUS FOR CALCULATING INTERNAL RESISTANCE/OPEN-CIRCUIT VOLTAGE OF SECONDARY BATTERY - In an arithmetic processing apparatus with a charge-discharge switching device for switching between a charge and a discharge of a secondary battery, a processor is provided for calculating an internal resistance or an open-circuit voltage of the secondary battery based on data including a voltage detected by a voltage sensor and a current detected by a current sensor. The processor is configured to derive an IV characteristic by using at least one of charging-period voltage and current data and discharging-period voltage and current data detected after a predetermined time has expired from a charge/discharge switching point, without using the voltage and current data of the secondary battery detected during a time duration from the charge/discharge switching point to the predetermined time, and configured to calculate the internal resistance or the open-circuit voltage from the derived IV characteristic.03-28-2013
20130080095MEASURING AND MONITORING A POWER SOURCE - Battery testing sensors, and systems and methods for testing batteries, are disclosed. Each battery sensor has a microcontroller programmed to analyze the frequencies of noise or other undesirable signals (“background noise”) present at a battery to be tested, and to determine the duty cycle of a desired pulse width modulation (PWM) signal to be applied to the battery in view of the background noise. Duty cycles of desired PWM signals are selected such that, when applied to the battery, they will at least approximate an AC signal having a frequency that has been determined to provide optimal test results in view of the background noise. The microcontroller analyzes the battery's response from application of the PWM signal thereto. Consequently, measurement errors from background noise present at the battery are minimized. Based on the response, attributes of the battery, such as internal admittance, voltage, current, and temperature, are determined.03-28-2013
20130085696METHOD AND SYSTEM FOR OBTAINING DEGRADATION OF BATTERY USING DEGRADATION MODEL AND PARAMETERS RELATED TO THE DEGRADATION - The present disclosure provides a method for obtaining degradation of a battery comprising the steps of collecting data of the battery and data related to the degradation of the battery; processing the collected data to obtain parameters related to the degradation of the battery; creating and updating a degradation model for the battery with the obtained parameters; and computing the degradation of the battery by using the degradation model and the parameters.04-04-2013
20130085695BATTERY STATE MEASURING METHOD AND APPARATUS, AND ELECTRONIC APPARATUS - A battery state measuring method computes a battery voltage at a time when charging or discharge of a battery stops, corresponding to a charging rate of a unit time before, based on a first battery characteristic. The method further computes a variation per unit time of the charging rate, corresponding to a voltage difference between the detected and computed battery voltages, based on a second battery characteristic, and computes a charging rate of the unit time after, using the charging rate of the unit time before and the computed variation.04-04-2013
20130041607BATTERY MONITORING CIRCUIT - A battery monitoring circuit is described. The battery monitoring circuit includes a high counter that increments when a sense voltage measurement is above a threshold. The battery monitoring circuit also includes a low counter that increments when the sense voltage measurement is below the threshold. The battery monitoring circuit further includes state machine circuitry coupled to the high counter and to the low counter. The battery monitoring circuit additionally includes open circuit voltage monitoring circuitry coupled to the state machine circuitry. The battery monitoring circuit also includes resistance monitoring circuitry coupled to the state machine circuitry.02-14-2013
20130041606DETECTING AN OPEN WIRE BETWEEN A BATTERY CELL AND AN EXTERNAL CIRCUIT - A device for detecting an open wire coupled to a battery includes a first pin and a second pin. The first pin is coupled to a positive terminal of a battery cell through a connection circuit. The second pin is coupled to a negative terminal of the battery cell through the connection circuit. A path of a current through the connection circuit changes in response to a wire between the connection circuit and the battery cell becoming open, and a change in a detecting voltage across the first pin and the second pin indicates a change in the path.02-14-2013
20100106437SUBSCRIBER PREMISES SIDE OPTICAL NETWORK UNIT AND OPTICAL TRANSMISSION SYSTEM - To provide a method for detecting a charged state of a battery, for evaluating a deterioration thereof due to each of reaction processes that individually have rates of reactions as different from therebetween, and for performing a detection of the charged state of the battery, a method for detecting the charged state of the battery according to the present invention comprises the steps of: measuring a voltage V04-29-2010
20090157335TELEMATICS-BASED METHOD AND SYSTEM OF BATTERY PARASITIC LOAD VALIDATION FOR A VEHICLE FLEET - Parasitic loads on a vehicular battery are evaluated based on an estimated reduction in the state of charge of the battery over the course of an engine-off state.06-18-2009
20120215471METHOD AND SYSTEM FOR DETERMINING A STATE OF CHARGE OF A BATTERY - Methods and systems are provided for determining a state of charge of a battery. A magnetic force between the battery and a magnet is detected. The state of charge of the battery is determined based on the detected magnetic force.08-23-2012
20120185191PORTABLE EQUIPMENT, NOTIFICATION METHOD AND NOTIFICATION PROGRAM - A portable equipment (07-19-2012
20120185190RESIDUAL QUANTITY DISPLAY SYSTEM - A microcomputer in a device body operates so as to store every update of a maximum discharge current value (I07-19-2012
20120185189COMPUTING DEVICE AND METHOD FOR TESTING CHARGING AND DISCHARGING RELIABILITY OF RECHARGABLE BATTERY - In a method for testing the charging and discharging reliability of a rechargeable battery, a test device measures the battery to obtain first terminal voltages and first electric currents when the battery is charged by a power supply. After the battery is discharged, the test device measures the battery to obtain second terminal voltages and second electronic currents. Based on the first terminal voltages and the first electric currents, a first lifecycle curve can be created. Based on the second terminal voltages and the second electric currents, a second lifecycle curve is created. The method compares the first lifecycle curve with a charging lifecycle curve, compares the second lifecycle curve with a discharging lifecycle curve, and generates a lifecycle estimation report of the rechargeable battery according to the comparison results.07-19-2012
20120185188SYSTEM AND METHOD FOR TESTING INTERNAL RESISTANCE OF BATTERY IN AN ELECTRONIC DEVICE - A system and method for testing an internal resistance of a battery in an electronic device include reading a first voltage of the battery in the electronic device, under the condition that the electronic device is in a standby state. The testing method further includes reading a second voltage of the battery, under the condition that a power transmission of the electronic device is at a maximum, and calculating the internal resistance of the battery according to the first voltage and the second voltage.07-19-2012
20120185187COMMUNICATIONS SYSTEM - An apparatus and method for monitoring energy storage devices is disclosed. A monitoring system that monitors an energy storage device collects and stores operating data from the device and relays that data through a communications system to one or more servers. The servers can store the operating data from each of the monitored energy storage devices.07-19-2012
20120185186Temperature Sensing of Electric Batteries - Methods and apparatus are provided related to thermal protection of electrical batteries. A sensor senses the temperature of a battery and a corresponding digital signal is digitally derived. Date, time and temperature data are written to storage media. A time-rate-of-change of the battery's temperature is determined and used to establish operational periodicity. Stored digital data can be communicated to another entity, temperature or time-rate-of-change values used to trigger an alarm or system shut-down, and so on. Electronic circuitry toggles between an active mode and a power-conserving sleep mode in accordance with periodic operating schedule.07-19-2012
20090125256Monitoring Apparatus For Secondary Battery - When the number of battery cells of a certain battery block is different from a reference number of cells, the inter-terminal voltage of the battery block is converted into the voltage corresponding to the reference number of cells. Thus, even when a plurality of battery blocks being different in the number of battery cells are included, a map for calculating the SOC may only be one. That is, since conventional software or calculation methods can be used, it is not necessary to increase the capacity of SOC calculation software or allowable battery output calculation software. As a result, a plurality of assembled batteries being different in the number of battery cells constituting each battery block can appropriately be monitored.05-14-2009
20100094575METHOD FOR DIAGNOSING THE LEAD-ACID BATTERY OF AN AUTOMOBILE AND SYSTEM FOR IMPLEMENTING THE SAME - A method for diagnosing a lead-acid battery of an automotive vehicle includes an experimentation phase in which parameterization of the state of health (SOH) of a lead-acid battery for different values of the state of charge (SOC) of the battery is conducted, and a diagnosis phase in which the battery temperature during the start-up phase of the vehicle is measured and, after the first discharge and over a given range of current variation, the corresponding voltage (U) and current (I) is measured, to deduce therefrom after processing, a value of parameter (γ) of the battery. The state of charge (SOC) of the battery is then determined, and the value representing the state of health is determined, so as to establish a diagnosis of the battery.04-15-2010
20120166116APPARATUS FOR CALCULATING RESIDUAL CAPACITY OF SECONDARY BATTERY - An apparatus for calculating a residual capacity of a secondary battery is provided. The apparatus calculates the residual capacity of energy in the secondary battery which is charged/discharged. The apparatus includes an arithmetic unit which estimates and calculates a first residual capacity based on a charge/discharge voltage corresponding to a residual capacity of the secondary battery, calculates a second residual capacity based on an integrated value of a charge/discharge current of the secondary battery, weights the charge/discharge voltage of the secondary battery with the first residual capacity or the second residual capacity according to the voltage changing rate, and combines the results of the weighting to obtain the residual capacity of the secondary battery.06-28-2012
20090259418CURRENT-VOLTAGE CONVERSION CIRCUIT AND POWER CONSUMPTION DETECTION CIRCUIT AND ELECTRONIC DEVICE USING THE SAME - A current-voltage conversion circuit which converts a current to be detected into a voltage, includes a detection resistor, amplifier circuit having a first operational amplifier, and an offset adjusting current source having a third resistor and a fourth resistor which are capable of trimming. The offset adjusting current source causes an offset adjustment current to flow in the offset resistor. The current value of the offset adjustment current is controlled by adjusting the resistance of the third resistor and the fourth resistor. A voltage at a node between the first transistor and the second resistor is output.10-15-2009
20130046495BATTERY MANAGEMENT SYSTEM AND METHOD FOR SYNCHRONIZING VOLTAGE AND CURRENT OF BATTERY - A controller of a power storage system includes a voltage measuring device configured to be electrically coupled to at least one cell and to generate first voltage data, the first voltage data comprising a first voltage value and a first voltage measurement time of a voltage of the at least one cell, and a current measuring device configured to be electrically coupled to the at least one cell and to generate first current data, the first current data comprising a first current value and a first current measurement time of a current through the at least one cell, the first voltage measurement time corresponding to the first current measurement time in a first measuring period, a battery management system configured to generate a clock signal transmitted to the voltage measuring device and the current measuring device to synchronize the first voltage data and the first current data in a first transmission period of the first measuring period.02-21-2013
20110004429MONITOR OF ASSEMBLED BATTERY - A monitor (01-06-2011
20110004427ACCURACY OF BATTERY MONITOR PARTS - Embodiments of the present invention provide a monitoring system that may include a plurality of monitors. Each may have a plurality of input pairs coupled to respective components of a component stack, wherein adjacent monitors each have an input pair coupled to a common component. Embodiments of the present invention provide an integrated circuit that may include a plurality of detectors to locally measure a first group of channels. The integrated circuit may also include a receiver operable to receive a measurement of at least one channel of the first group of channels, and a controller to calculate a correction factor based on the received measurement and a local measurement of the at least one channel and to correct all first group measurements with the correction factor.01-06-2011
20100138179DIAGNOSTIC SYSTEM FOR MONITORING INTERNAL CONDITIONS INSIDE A FUEL CELL - A diagnostic system for monitoring internal conditions inside a fuel cell includes a pair of bipolar plates, a gas diffusion layer, a central controller, and three or more sensors. Each bipolar plate contains a fuel gas channel. The central controller includes a computing unit and a display. Each sensor has a resistor portion, a capacitor portion, a common lead, a resistor line, and a capacitor line for detecting a voltage value, a resistance value, and a capacity value. The display shows out physical information detected by these sensors for diagnosing the fuel cell. The physical information includes voltage, resistance, capacity, temperature, humidity, flow velocity, and flow rate. In which, it can detect various physical information inside the fuel cell. It can monitor the internal conditions continuously and directly. Plus, it can prolong the product life of the fuel cell.06-03-2010
20100138178Battery capacity estimating method and apparatus - A method for accurately estimating battery capacity based on a weighting function is provided. The disclosed system monitors battery current and uses the monitored battery current to calculate the state of charge (SOCbyAh) of the battery. The system also measures the open circuit voltage (OCV) of the battery when the system is at rest, rest being determined by achieving a current of less than a preset current value for a period of time greater than a preset time period. The state of charge of the battery is calculated from the OCV (SOCbyOCV). The weighting function is based on ΔSOCbyAh and ΔSOCbyOCV, where ΔSOCbyAh is equal to SOCbyAh06-03-2010
20100138177Method for accurate battery run time estimation utilizing adaptive offset values - A disclosed method comprises adaptive offset values in an open-circuit voltage lookup table, a temperature lookup table, and an age lookup table, and then determining a present charge of the battery utilizing an open-circuit voltage of the battery and a temperature of the battery, determining a low-voltage-alarm charge of the battery utilizing a discharge current of the battery and an age of the battery, and utilizing the present charge and the low-voltage-alarm charge to estimate the run time of the battery. Utilizing the open-circuit voltage, temperature, and age comprises looking up a present battery capacity, temperature coefficient, and ageing coefficient in lookup tables, and adjusting the present battery capacity, temperature coefficient, and ageing coefficient by the respective offset values adaptive to the battery. Estimating the run time of the battery comprises, in one embodiment, dividing the difference of the present charge and the low-voltage-alarm charge by the discharge current.06-03-2010
20100138175Method for accurate battery run time estimation utilizing load-condition voltage - One disclosed embodiment is a method for accurately estimating a run time of a battery utilized by an electronic device. The method comprises determining a starting battery capacity utilizing an open-circuit voltage of the battery, determining a battery capacity decline rate utilizing a load-condition voltage of the battery, and determining a low-voltage-alarm battery capacity during an active operation of the electronic device. The method further comprises utilizing the starting battery capacity, the battery capacity decline rate, and the low-voltage-alarm battery capacity to estimate the run time of the battery. The run time estimate is determined, in one embodiment, by dividing the difference of the starting battery capacity and the low-voltage-alarm battery capacity by the battery capacity decline rate. One embodiment utilizes an open-circuit voltage lookup table, a load-condition voltage lookup table, and a low-voltage-alarm lookup table that are configured for use with a certain type of battery.06-03-2010
20100138176System for accurate battery run time estimation utilizing voltage capture and coulomb counting - A disclosed embodiment is a low-cost, low-power system for run time estimation of a battery utilized by an electronic device. The system comprises a voltage capture circuit configured to measure a voltage of the battery and a coulomb counting circuit configured to measure a charge of the battery. Additionally, the voltage capture circuit is configured to measure an open-circuit voltage of the battery during a sleep mode, or battery voltage during an operation mode, and the coulomb counting circuit is configured to measure a discharge of the battery during the sleep mode, or a change or discharge of battery during an operation mode. The voltage capture circuit comprises a sample-and-hold circuit and an analog-to-digital converter, while the coulomb counting circuit comprises a sigma-delta converter, a comb filter, and a digital accumulator. The voltage capture circuit and the coulomb counting circuit are coupled through a power management unit to a microprocessor configured to estimate battery run time in the electronic device.06-03-2010
20100268493Battery management system and driving method for the same - Disclosed are a battery management system that uses a source file for sensing of the cell voltages of battery cells by changing only declaration information of a header file using an MCU even when the number of battery cells is changed, and a driving method for the same. The battery management system is connected to a battery including at least one battery pack in which a plurality of battery cells are contained. includes a sensor including an AD converter connected to the battery cells, the sensor configured to sense cell voltages of the battery cells, a storage configured to store source data generated using an input external signal, and a controller configured to generate a source signal corresponding to the source data and forward the source signal to the sensor, the sensor being configured to sense the cell voltages of the battery cells according to the source signal.10-21-2010
20100268495POWER SUPPLY MONITORING FOR AN IMPLANTABLE DEVICE - A method and an apparatus for projecting an end of service (EOS) and/or an elective replacement indication (ERI) of a component in an implantable device is provided. The method comprises measuring the measured voltage of the energy storage device, and determining whether the measured voltage is less than a transition voltage. When the measured voltage is less than the transition voltage, determining a time period remaining until an end of service of the energy storage device is based upon a function of the measured voltage. When the measured voltage is greater than or equal to the transition voltage, determining a time period remaining until an end of service of the energy storage device is based upon a function of the total charge depleted. The transition voltage is a voltage associated with the transition point of non-linearity in the battery voltage depletion curve.10-21-2010
20090306915Method for predicting the power capacity of electrical energy stores - A method and a corresponding device are described for predicting the power capacity of an electrical energy store, such as a battery in a vehicle, in which, with the aid of a mathematical model for the energy store, its state variables and parameters are continuously adjusted, and thereby a charge and discharge power capability is estimated and predicted.12-10-2009
20100100343BATTERY MONITOR - A circuit tracks the total amount of time that a host device has spent in its high power “activated” state (an optionally idle and hibernate states) and thereby can estimate the total power consumed by the tag. A remote device can query the state of a counter storing a value representing this time to accurately determine how much of the energy has been consumed by the host device and how much time is left and/or how many more operations can be performed before the host device's battery is exhausted.04-22-2010
20120191390APPARATUS FOR ESTIMATING OPEN CIRCUIT VOLTAGE OF BATTERY, APPARATUS FOR ESTIMATING STATE OF CHARGE OF BATTERY, AND METHOD FOR CONTROLLING THE SAME - An apparatus for estimating an OCV of a battery includes a voltage sensing unit for measuring a battery output voltage; a temperature sensing unit for measuring a battery temperature; a data storing unit for periodically receiving the battery output voltage and temperature data from the sensing units and storing the data in a memory; an OCV variation estimating unit for calculating an OCV variation from a varying pattern of battery output voltages measured in the past and at the present, stored in the memory, by applying a mathematical model defining a correlation between the varying pattern and the OCV variation, and estimating an OCV at a current stage by reflecting a correction factor corresponding to the battery temperature on the calculated OCV variation; and an OCV estimating unit for estimating an OCV at the current stage by reflecting the estimated OCV variation on the OCV estimated at a last stage.07-26-2012
20120191389Method and Device for Determining a Charge State of a Battery with the Aid of a Fluxgate Sensor - A method for determining the charge state of a battery in a motor vehicle includes steps of applying a measuring voltage to a coil, cyclically reversing the polarity of the measuring voltage if the absolute value of the secondary current flowing through the coil exceeds a predetermined threshold value, scanning the secondary current, reconstructing the curve of the secondary current based on the scanned secondary current values, and determining the charge state based on the curve of the secondary current values.07-26-2012
20120191388DIAGNOSTIC METHOD TO CHECK FOR STUCK BITS IN STORAGE REGISTERS OF SAFETY-CRITICAL SYSTEMS - Method to verify proper operation of battery monitor shift register(s). The method may be implemented on an individual battery monitor or within a system of battery monitors. Battery monitor shift register(s) may be configured to store predetermined test patterns upon start up or reset. The contents of the battery monitor shift registers may be shifted out serially to a processor or controller, which may compare the read out data to a local copy of the predetermined test pattern. If the patterns do not match, the processor or controller may indicate an error condition.07-26-2012
20130073236SYSTEMS AND METHODS FOR DETERMINING A REMAINING BATTERY CAPACITY OF A BATTERY DEVICE - A system for determining a remaining battery capacity includes a detection circuitry and a controller. The detection circuitry is coupled to a battery device at a detection node for detecting a closed circuit voltage of the battery device. The controller is coupled to the detection circuitry, derives an amount of current drawn out from the battery device based on the closed circuit voltage, calculates an open circuit voltage of the battery device based on the current, and determines the remaining battery capacity of the battery device based on the open circuit voltage.03-21-2013
20130073235BATTERY MONITORING DEVICES - Described herein is a battery monitoring device that can easily be mounted on a cable or electrical connection associated with a battery pack for monitoring voltage and/or current of the battery pack. A pair of clamp elements (03-21-2013
20130073234Response to Low Voltage Electrolysis in a Battery Pack - An apparatus and method providing for detecting and responding to low voltage electrolysis within an electric vehicle battery detecting and responding to low voltage electrolysis within an electric vehicle battery enclosure to limit a possible hazard condition of battery enclosure. A microprocessor-implemented response system for low voltage electrolysis in a battery pack, includes an evaluator to monitor, using the microprocessor, a low voltage electrolysis flag indicative of a possible low voltage electrolysis of fluid within an enclosure that generates a flammable gas including a plurality of electrically-coupled battery modules storing energy for the battery pack; and a remediation system, coupled to the enclosure and responsive to the possible low voltage electrolysis when the evaluator detects a likelihood of the possible low voltage electrolysis, to decrease risks associated with the possible low voltage electrolysis when the remediation system is active.03-21-2013
20130073233Detection of Low Voltage Electrolysis in a Battery Pack - An apparatus and method providing for detecting and responding to low voltage electrolysis within an electric vehicle battery detecting and responding to low voltage electrolysis within an electric vehicle battery enclosure to limit a possible hazard condition of battery enclosure. The present invention includes embodiments directed towards detection algorithms and apparatus for promoting the use of sensors (e.g., hydrogen, voltage, current, and immersion sensors) for the purpose of detecting low voltage electrolysis. Additionally, the present invention includes response processes and structures to address low voltage electrolysis.03-21-2013
20130060497BATTERY STATE MONITORING DEVICE - A battery state monitoring device includes a battery pack including at least one battery cell, and a measuring circuit that measures a state of the battery cell, the measuring circuit including temperature measuring means for measuring a temperature of the battery cell, current measuring means for measuring a current flowing through the battery cell, and voltage measuring means for measuring a voltage of the battery cell, and including a calculation circuit in parallel, wherein the battery state monitoring device calculates a predetermined voltage corresponding to a predetermined state of charge of the battery cell, based on the temperature and the current of the battery cell, using a predetermined operational expression including a temperature quadratic exponential function and a temperature linear function, and compares the voltage of the battery cell with the predetermined voltage calculated using the operational expression to determine the predetermined state of charge of the battery cell.03-07-2013
20120310567DETERMINING THE INTERNAL RESISTANCE OF A BATTERY CELL OF A TRACTION BATTERY THAT IS CONNECTED TO A CONTROLLABLE MOTOR/GENERATOR - In a method and a device for determining the internal resistance of a battery cell of a battery, the battery is connected to a controllable motor/generator in such a way that a flow of energy can take place from the battery to the motor/generator or from the motor/generator to the battery, including the following steps: modulation of the magnetic field-forming portion of the motor/generator, determination of a change in voltage at the battery cell and of a change of the current flow through the battery cell during the modulation of the magnetic field-forming portion of the motor/generator, and calculation of the internal resistance of the battery cell as the quotient of the change in voltage and the change in current flow.12-06-2012
20120310564INFORMATION PROCESSING APPARATUS AND METHOD FOR PREDICTING REMAINING AMOUNT OF BATTERY CHARGE - An information processing apparatus driven by a battery, includes: a recording unit configured to record a value representing a magnitude of a load of the information processing apparatus; a determining unit configured to determine a lower threshold related to the load based on the value; a control unit configured to activate a program based on an amount of increase in the load caused by activation of the program, when the value is smaller than the lower threshold; and a calculating unit configured to calculate remaining time of the battery by using a function associated with a slope representing change in the value.12-06-2012
20120310563STATE OF CHARGE COMPUTATION SYSTEM - A first estimated state of charge is output based on an estimated open voltage of a secondary battery. A second estimated state of charge is output based on the result obtained by integrating the measured current of the secondary battery and the upper limit of the error of the measured current and the capacity of the secondary battery. A third estimated state of charge is output based on the result obtained by integrating the measured current and the lower limit of the error of the measured current and the battery capacity. A fourth estimated state of charge is output based on the result obtained by integrating the measured current and the battery capacity. The fourth estimated state of charge is output as a state of charge within the period of the predetermined period.12-06-2012
20120310561METHODS AND SYSTEMS FOR ESTIMATING BATTERY HEALTH - A method of estimating a state of health of a battery is disclosed. The method may include receiving information indicative of a history of electricity received by and discharged from the battery during a time period. The method may also include using the received information to estimate peaks in the electricity during the time period. Additionally, the method may include using an information processor to determine a parameter indicative of an estimated state of health of the battery based at least in part on an estimated magnitude of electricity at each of a plurality of the estimated peaks.12-06-2012
20090271132METHOD FOR ESTIMATING STATE OF CHARGE OF A RECHARGEABLE BATTERY - An apparatus for accurately estimating the SOC of a rechargeable battery installed in a hybrid electric vehicle. A voltage variation measurement unit measures terminal voltage variation amount of the rechargeable battery in a no-battery-current state in which a charge-discharge current does not flow in the rechargeable battery. A polarization voltage calculator calculates a polarization voltage from the measured variation amount. An electromotive force calculator subtracts the polarization voltage from a non-load voltage in a state in which a charge-discharge path is open to calculate the electromotive force of the rechargeable battery. An SOC estimator estimates the SOC of the rechargeable battery based on the electromotive force.10-29-2009
20120226455Anomalously Charged State Detection Device and Test Method for Lithium Secondary Cell - A lithium secondary cell has a positive electrode, a negative electrode, and an electrolyte including lithium ions. An anomalously charged state detection device includes: a voltage detection unit; a current detection unit; a calculation unit that calculates the electricity amount Q charged into or discharged from the lithium secondary cell and a differential value dV/dQ for each predetermined time period t, and that obtains a Q-dV/dQ curve; a measured data storage unit that stores the Q-dV/dQ curve; a cell data storage unit that stores a Q-dV/dQ curve during normal conditions; and a control unit that decides that the lithium secondary cell is in an anomalously charged state if, in the Q-dV/dQ curve stored by the measured data storage unit, a peak is present that is different from a peak that appears in the Q-dV/dQ curve during normal conditions.09-06-2012
20130066573SYSTEMS AND METHODS FOR DETERMINING BATTERY STATE-OF-HEALTH - A system and method use an open-circuit voltage (OCV) method of calculating a state-of-health (SOH) of a chemical battery. The OCV system and method includes charging the battery to a maximum charge potential, determining an open-circuit voltage (OCV) of the battery after waiting a predetermined period of time after completion of the charging, and determining the SOH of the battery based on the determined OCV of the battery. Another system and method use a time-to-charge (TTC) method of calculating a state-of-health (SOH) of a chemical battery. The TTC system and method includes monitoring and storing a charge time of the battery in a memory and scaling the stored charge time to form an SOH indication.03-14-2013
20090030627SYSTEM, METHOD, AND ARTICLE OF MANUFACTURE FOR DETERMINING AN ESTIMATED BATTERY STATE VECTOR - A system, a method, and an article of manufacture for determining an estimated battery state vector indicative of a state of a battery are provided. The method determines a first estimated battery state vector indicative of the state of the battery at a first predetermined time based on a plurality of predicted battery state vectors, a plurality of predicted battery output vectors, and a first battery output vector.01-29-2009
20090030626REMAINING ELECTRICAL CHARGE/REMAINING CAPACITY ESTIMATING METHOD, BATTERY STATE SENSOR AND BATTERY POWER SOURCE SYSTEM - The present invention provides a battery remaining electrical charge/remaining capacity estimating method which makes it possible to obtain a convergence value of a battery open circuit voltage with high accuracy and in a short time.01-29-2009
20130066572ASSEMBLED BATTERY - The present invention relates to a battery pack constituted by connecting a plurality of unit batteries, in which the route of the signal line is simplified and the manufacturing cost is reduced. The battery pack of the present invention includes means for measuring voltage or the like of a unit battery equipped for every unit battery board and for saving aforesaid measured value, means for transmitting aforesaid saved measured-value to aforesaid battery management unit as a digital signal, and the like, wherein the plurality of unit battery boards and aforesaid battery management unit are connected by a single loop-shaped or double loop-shaped communication channel, and it is constituted so as to carry out transmission and reception of aforesaid measured-value or the like between aforesaid respective unit battery boards and aforesaid battery management unit through aforesaid loop-shaped communication channel.03-14-2013
20090248334METHOD FOR ESTIMATING THE CHARGE OF A MOTOR VEHICLE BATTERY - In a method for estimating the charge of a motor vehicle battery, at least one sensor measures terminal voltage, current circulating in the battery, and temperature, such that: current variations are measured at predetermined time intervals; a modeled voltage is determined according to current and temperature; the modeled voltage includes components corresponding to charge polarization; estimated and measured voltage are compared to determine voltage error; theoretical model is adapted according to battery operating phase and determined voltage error. Operating phases of the battery on charge and discharge correspond on each occasion to operation substates including 100% saturated, close to 100% saturated, normal, close to 0% charged and 0% charged and in that, for the substates, adaptation is made for theoretical computation of battery charge state and/or computation of the component corresponding to polarization, the estimate of the state of charge of the battery being determined using the adapted theoretical model.10-01-2009
20100121592Method for Determining the Actual Amount of Energy Available in an Energy Storage Module - The amount of energy actually available in an energy storage module having a plurality of individual storage elements connected in series is determined. An upper and/or a lower limit voltage for the energy storage module is determined dynamically. During a charging operation of the energy storage module, in the event that a maximally permissible upper cell voltage is reached on at least one storage cell, the upper limit voltage of the energy storage module is determined by summing all cell voltages of all storage elements existing at that point-in-time. During a discharging operation, if a minimally permissible lower cell voltage is reached on at least one storage element, the lower limit voltage is determined by summing all cell voltages existing at that point-in-time. The actually available amount of energy is computed as a function of the determined limit voltage or voltages and of the determined actual storage capacity.05-13-2010
20090055110LITHIUM SULFUR RECHARGEABLE BATTERY FUEL GAUGE SYSTEMS AND METHODS - Systems and methods for accurately determining the state of charge and the relative age of lithium sulfur batteries are provided. The cell resistance and taper input charge of a particular type of lithium sulfur battery are respectively measured to determine the state of charge and age of the battery.02-26-2009
20090024338Remaining-Amount Estimation Device and Method For Secondary Battery - An SOC-estimation-value-depending gain selection unit multiplies the deviation of an SOC estimation value (last calculated value) relative to an estimated SOC by a correction gain G01-22-2009
20100088051ELECTRONIC DEVICE, BATTERY, AND BATTERY REMAINING CAPACITY DISPLAY METHOD - The present invention provides an electronic device capable of displaying a remaining capacity of a battery 04-08-2010
20130166233DEVICE FOR ESTIMATING A LIFETIME OF A SECONDARY BATTERY AND METHOD THEREOF - Embodiments of the present invention provide an accelerated lifetime estimation device for predicting the lifetime of a secondary battery, and a method thereof. The accelerated lifetime estimation device can accurately estimate a normal lifetime of the secondary battery while reducing an evaluation time period of the secondary battery.06-27-2013
20130166234METHOD FOR ESTIMATING BATTERY DEGRADATION - A method for estimating battery degradation is provided. In this method, a remaining capacity is obtained by looking up a device characteristic table according to a steady open circuit voltage of a battery. Besides, a constant current is provided to charge the battery, and when a terminal voltage of the battery reaches to a charging preset voltage, a constant voltage is provided to charge the battery. The transition point information at the transition from a constant current mode to a constant voltage mode, which includes a transition point estimated open circuit voltage, a transition point voltage, a transition point current and a transition point battery temperature, is analyzed based on voltage, current, temperature and capacity information measured during the charging process. A battery degradation index is calculated from the transition point information.06-27-2013
20130166235MANAGEMENT SYSTEM AND ESTIMATING METHOD FOR BATTERY PARAMETER - The present invention relates to a battery parameter management system and a battery parameter estimation method which are capable of simply estimating parameters of elements forming a battery equivalent model having a simple structure. The battery parameter system includes an amperemeter, a voltmeter, a control switch unit, and a processor, and the battery parameter estimation method includes supplying a pulse current, estimating resistance of an internal resistor, estimating capacitance of an internal capacitor, and estimating parameters of dynamic elements.06-27-2013
20120101753ADAPTIVE SLOWLY-VARYING CURRENT DETECTION - A system and method for determining whether an onboard estimation process, such as a recursive least squares regression process, can effectively calculate the state-of-charge of a battery. The method includes defining a current sample time and a previous sample time and measuring the battery current. The method then calculates a variation moving average of the measured current and an index of current change rate determined by averaging the absolute value of the current variation moving average using the measured current and calculated moving averages from the previous sample time. The method then determines if the current change index is greater than a predetermined threshold, and if so, the estimate of the battery state-of-charge resulting from the onboard estimation process is valid.04-26-2012
20110130984ESTIMATING REMAINING BATTERY SERVICE LIFE IN AN IMPLANTABLE MEDICAL DEVICE - Methods for estimating a remaining service life of an implantable medical device (IMD) battery are presented. In one embodiment, a characteristic discharge model of the battery is employed. Systems employing the methods may include an external device coupled to the IMD, for example, via a telemetry communications link, wherein a first portion of a computer readable medium included in the IMD is programmed to provide instructions for the measurement, or tracking, of time and the measurement of battery voltage, and a second portion of the computer readable medium included in the external device is programmed to provide instructions for carrying out the calculations when the voltage and time data is transferred via telemetry from the IMD to the external device.06-02-2011
20110119004Method and a Device for Measuring and Calculating the Insulation Resistance of a High Voltage Power Management System in a Hybrid Power Vehicle - This invention provides a method and a device for measuring and calculating the insulation resistance of a high voltage power management system in a hybrid power vehicle, which are designed to effectively measure the insulation resistance; said method and device for measuring the insulation resistance of a high voltage power management system in a hybrid power vehicle comprising a central process unit circuit, a battery-voltage-balance detection unit and an insulation resistance detection unit. The voltage signal outputted by the battery-voltage-balance detection unit is assessed by the central process unit circuit; the insulation-resistance detection unit is controlled by the central process unit circuit to start up when voltage is slightly out of balance, the signal detected by the insulation resistance detection unit is transmitted to the central process unit circuit, and the signal is transmitted to the battery management system by the central process unit circuit via CAN bus. The present invention not only is capable of measuring the total voltage of the battery with high precision and monitoring the real-time insulation state, but also is capable of effectively measuring the insulation resistance.05-19-2011
20120290237BATTERY CONDITION DETECTING APPARATUS AND BATTERY CONDITION DETECTING METHOD - There is provided a battery condition detecting apparatus including a unit for detecting a secondary battery temperature, a unit for calculating a capacity holding rate of the secondary battery, a unit for detecting a secondary battery voltage, a unit for calculating a waiting time between a time point when a current becomes a predetermined current value or smaller and a time point when a voltage variation per a unit time based on a battery property indicative of a relationship among a temperature of the secondary battery, a capacity holding rate, and the waiting time in response to the temperature detected by the unit and a capacity holding rate calculated by the unit, and a unit for estimating a condition of a residual quantity of the secondary battery based on the voltage detected by the unit after the waiting time calculated by the unit elapses.11-15-2012
20120290236BATTERY CONDITION DETECTING APPARATUS - There is provided a battery condition detecting apparatus including a voltage detecting unit configured to detect an open voltage of a secondary battery, and a charging rate calculating unit configured to calculate a charging rate by applying a charged open voltage obtained by charging the secondary battery and detected by the voltage detecting unit to a first battery property indicative of a relationship between the charged open voltage and the first battery property, and for calculating the charging rate by applying a discharged open voltage obtained by discharging the secondary battery and detected by the voltage detecting unit to a second battery property indicative of a relationship between the discharged open voltage and the second battery property.11-15-2012
20090210179MODEL-BASED ESTIMATION OF BATTERY HYSTERESIS - A method of battery state of charge estimation considering battery hysteresis includes using a Preisach-model-based algorithm to calculate a battery state of charge.08-20-2009
20120109555ADAPTIVE RATING FOR BACKUP POWER SUPPLY - Systems and methods of an adaptive rating for a backup power supply are disclosed. An exemplary method includes measuring electrical output for a load. The method also includes determining an adaptive rating for at least one battery module of a backup power supply. The method also includes storing changing adaptive ratings for the at least one battery module over time based on the measured electrical output for the load.05-03-2012
20110301891METHOD OF DIAGNOSING DETERIORATION OF CELL OF BATTERY FOR VEHICLE - Provided is a method of diagnosing deterioration of a cell of a battery for a vehicle. The present method makes it possible to prevent deterioration of a battery pack and reduction of performance due to degradation. The methods include calculating internal resistance in the method of least squares based on current and voltage of each cell in a battery pack, calculating available capacity and power of the cells from the internal resistance, determining whether the cells are deteriorated on the basis of the available capacity and power, and instructing a driver to check and repair the battery pack if needed.12-08-2011
20110301890AGGREGATING MOBILE DEVICE BATTERY LIFE DATA - Battery life data may be collected from a number of mobile devices. The battery life data for each of the mobile devices may be correlated with one or more characteristics of each of the mobile devices. The battery life data for the mobile devices may be aggregated based on at least one of the one or more characteristics. In some examples, a report of the aggregated battery life data for the mobile devices including at least one common characteristic is generated.12-08-2011
20110288798Method and Apparatus For Measuring and Monitoring a Power Source - A system and method for monitoring a power source using a site controller and first and second sensors are described herein. The system may include a first power source in communication with a second power source. The system may include a first sensor in communication with the first power source and the first sensor may calculate an exponential discharge characteristic of the first power source. The system may include a second sensor in communication with the second power source and the second sensor may calculate an exponential discharge characteristic of the second power source. The system may include a controller in communication with the first sensor via the second sensor wherein the controller may determine the characteristics of the first power source as a function of the exponential discharge characteristic of the first power source.11-24-2011
20110295534METHOD FOR DETERMINING DROP IN CAPACITY OF SODIUM-SULFUR BATTERY - It is determined that a drop in the capacity of a sodium-sulfur battery has proceeded to an abnormal level when both the following expression (1) and expression (2) hold. Qe−Qn≧K1 . . . (1) where Qe: abnormal block depth-of discharge; Qn: normal block depth of discharge; and K1: block abnormality determination setting value (integer constant), and Qe≧K2 . . . (2) where K2: depth of discharge abnormality determination setting value (integer constant).12-01-2011
20110295533METHOD AND DEVICE FOR CLASSIFYING A BATTERY - The invention relates to a device for classifying a battery produced by assembling electricity-accumulating elements (12-01-2011
20110295532ELECTRONIC STORAGE BATTERY DIAGNOSTIC SYSTEM - A battery diagnostic system including Kelvin connectors configured to electrically couple to a storage battery. A forcing function source is configured to apply a forcing function signal to the storage battery through the Kelvin connectors. Measurement circuitry calculates an electrical parameter of the storage battery. A memory stores a plurality of electrical parameters for a plurality of storage batteries and each of the plurality of stored electrical parameters is associated with storage battery identifier information which identifies one of the storage batteries of the plurality of storage batteries and time information, which identifies a time the electrical parameter was obtained.12-01-2011
20110288797METHOD FOR DETERMINING THE CHARGE STATE OF A SECONDARY INTERCALATION CELL OF A RECHARGEABLE BATTERY - A method is described for determining the charge state of a secondary intercalation cell having an anode, a cathode, a separator, and an electrolyte phase, which saturates the anode, the cathode, and the separator, in which the charge state is back-calculated on the basis of measured variables, which are measured on the intercalation cell, with the aid of an electrochemical simulation model. In the fundamental simulation model, physical-chemical properties in the anode and the cathode are each considered in simplified form as being homogeneously distributed in the anode and in the cathode and Butler-Volmer reaction kinetics are calculated in each case for the anode and for the cathode. The Butler-Volmer reaction kinetics are expanded on the anode side by a potential component (Φ11-24-2011
20130218496BATTERY STATE ESTIMATOR WITH OVERPOTENTIAL-BASED VARIABLE RESISTORS - A battery model and equivalent circuit that includes an ohmic resistance, a first RC-pair that models a battery cell charge transfer reaction and double layer processes and a second RC-pair that models battery cell diffusion. Each of the ohmic resistance, the charge transfer reaction resistance and the diffusion resistance in the model are variable resistances, where each resistance changes in response to a change in voltage potential across the resistance.08-22-2013
20100036628Systems and Methods for Monitoring Deterioration of a Rechargeable Battery - Systems and methods are provided for monitoring the deterioration of a rechargeable battery. A battery monitoring system may be used to store charging information, discharge information and storage information for a rechargeable battery to a data store. The charging information may include a number of charge cycles incurred by the rechargeable battery. The discharge information may include a number discharge cycles incurred by the rechargeable battery. The storage information may include information relating to periods when the rechargeable battery is not being actively charged or discharged. The battery monitoring system may be further used to determine an amount of deterioration of a battery performance characteristic based on the stored charging information, discharge information and storage information.02-11-2010
20110218748Apparatus for Monitoring Battery Voltage and Temperature - An apparatus for monitoring battery voltage and temperature includes a host controller and acquisition boards, and every acquisition board for the battery includes a voltage acquisition module, a temperature acquisition module, a host control chip MCU, A/D convertor module, an opto-isolator module, a CAN bus communication module and two external connection ports CN09-08-2011
20110218747MONITOR FOR FRONT TERMINAL BATTERIES - A battery monitoring device configured to monitor a storage battery. The battery monitoring device includes Kelvin connectors configured to couple to the terminals of the storage battery. The battery monitoring device is configured to receive data from a second battery monitoring device. Further, the battery monitoring device is configured to measure a parameter of the storage battery. The measured parameter and the data received from the second battery monitoring device are communicated to a receiving station.09-08-2011
20090187360Data Collection Device And Associated System For Monitoring And Storing Performance And Maintenance Data Related To A Component Of An Electrical System - The present invention provides systems and methods for testing and storage of information related to a component. A data collection device having a memory is fixedly connected to the component. A test device communicates with the data collection device to store test data concerning the component in the data collection device. The test device also performs analysis of the test data and provides information concerning the health and maintenance history of the component. The present invention also provides systems and methods for determining the current drawn or supplied by electrical components connected in parallel in an electrical system. A current sensor located between the electrical components determines the current supply or draw of one of the electrical components, while a current sensor between the electrical components and the remainder of the electrical system determine a cumulative current draw or supply by both the electrical components.07-23-2009
20090099800Apparatus and Method for Controlling Charging and Discharging Power Storage Device04-16-2009
20090088993VEHICLE POWER SUPPLY DEVICE AND ITS DEGRADATION JUDGMENT METHOD - A vehicle power supply device has a capacitor unit including capacitors storing auxiliary power; a temperature sensor; a charge circuit; a capacitor-unit current detector; a capacitor-unit voltage detector; a controller; a storage; and a determination unit. The determination unit determines the degradation level of the capacitor unit based on at least one of an internal resistance standard value and a corrected calculated value of capacitance. This structure determines degradation of the vehicle power supply device more accurately than ever, so that the device can be used until the end of the actual life.04-02-2009
20100082277DISTRIBUTED CAR CHARGING MANAGEMENT SYSTEM AND METHOD - A power control system positioned within a car is provided. In one example, the power control system includes an electrical system, a battery and a power interface coupled to the electrical system, a communication interface, a controller coupled to the electrical system and the communication interface, and a memory coupled to the controller. The memory contains instructions executable by the controller. The instructions include receiving at least one power consumption parameter from a power controller external to the car via the communication interface, actuating the electrical system to access an external power source via the power interface, and directing power from the power source to the battery via the electrical system in order to charge the battery. One or both of actuating the electrical system to access the external power source and an amount of power directed to the battery are based on the power consumption parameter.04-01-2010
20100268494Automatic Discharge Of A Failed Battery - A system comprises a battery cell, control logic, and a battery drain latch circuit. The control logic is coupled to the battery cell and determines whether a battery pack has experienced a failure condition. The battery drain latch circuit is activated by the control logic, upon detection of a failure condition, to cause the battery cell to drain energy therefrom.10-21-2010
20090150101Semiconductor Integrated Circuit Device and Battery Pack - A semiconductor integrated circuit device for calculating a remaining battery capacity of a battery from which the semiconductor integrated circuit device receives power supply, and reporting the calculated remaining battery capacity to a battery-using appliance which also receives power supply from the battery includes a clock generating unit configured to generate a first clock signal and a second clock signal having a higher frequency than a frequency of the first clock signal; a selecting unit configured to select one of the first clock signal and the second clock signal and output the selected clock signal; a calculating unit configured to operate according to the selected clock signal to calculate the remaining battery capacity; and a communicating unit configured to operate according to the selected clock to report the calculated remaining battery capacity to the battery-using appliance.06-11-2009
20090144001Networked Battery Monitors - A battery monitoring system for simultaneously managing the batteries in 100 or more remote locations, each of said locations comprising a battery string with 100 or fewer cells, said system comprising: 06-04-2009
20120035873APPARATUS AND METHOD FOR ESTIMATING STATE OF HEALTH OF BATTERY BASED ON BATTERY VOLTAGE VARIATION PATTERN - An apparatus estimates SOH of a battery based on a battery voltage variation pattern. A data storing unit obtains and stores battery voltage, current and temperature data from sensors, at each SOH estimation. A first SOC estimating unit estimates first SOC by current integration using the battery current data. A second SOC estimating unit estimates open-circuit voltage from the voltage variation pattern, and calculates and stores second SOC corresponding to the open-circuit voltage and temperature using correlations between the open-circuit voltage/temperature and SOC. A weighted mean convergence calculating unit calculates and stores convergence value for weighted mean value of ratio of the second SOC variation to the first SOC variation. A SOH estimating unit estimates capacity corresponding to the weighted mean convergence value using correlation between the weighted mean convergence value and the capacity, estimates relative ratio of the estimated capacity to an initial capacity, and stores it as SOH.02-09-2012
20120109557METHOD FOR CALIBRATING AN ELECTROCHEMICAL BATTERY - Method for calibration of an electrochemical accumulator, characterized in that it comprises a phase (P05-03-2012
20120109556BAND SELECT STATE OF CHARGE WEIGHTED SCALING METHOD - A method and system for selectively using a voltage-based state of charge estimate in an overall state of charge calculation. Regions or bands of battery pack state of charge are established, where in some regions, open circuit voltage is known to be a good indicator of state of charge, and in other regions, open circuit voltage is known to be a poor indicator of state of charge due to a high sensitivity to measurement error. In regions or bands where voltage-based state of charge is expected to be accurate, the voltage-based state of charge estimate may be used to scale or adjust a current-based state of charge estimate, thus avoiding a continuous accumulation of error in the current-based estimate. In regions or bands where voltage-based state of charge is known to be prone to error, only current-based state of charge information is used.05-03-2012
20120109554ONBOARD ADAPTIVE BATTERY CORE TEMPERATURE ESTIMATION - Methods and systems for dynamically estimating the core temperature of at least one cell in a battery. In one aspect, the method includes using a combination of estimations including one based on ohmic resistance and another based on a function of thermal energy transfer through the battery. A weighting factor may be used for each of the estimations as a way to calculating a core temperature. The estimation based on ohmic resistance may be made determined independently of a measured surface temperature of the battery or any of the cells in the battery.05-03-2012
20110196633ACCUMULATOR DEVICE, AND STATE OF CHARGE EVALUATION APPARATUS AND METHOD FOR ACCUMULATOR - There are implemented a method which allows a present state of charge to be precisely estimated not only for a new battery, but also for a lead accumulator that has deteriorated with the lapse of a certain period since first use thereof, and a lead accumulator which can be increased in lifetime and reduced in cost using information on the precisely determined state of charge. An accumulator device includes an accumulator, a terminal voltage measurement unit for measuring a terminal voltage of the accumulator, a current measurement unit for measuring a current flowing in the accumulator, multi-dimensional characteristic models in which a plurality of relational models each between the measured terminal voltage, current and the state of charge are prepared for each of deterioration degrees, a deterioration degree estimation unit for estimating a present deterioration degree of the accumulator, a corresponding model selective determination unit for selectively determining, based on the deterioration degree determined by the deterioration degree estimation unit, a corresponding model from among the multi-dimensional characteristic models, and a state of charge estimation unit for estimating the present state of charge using the model selectively determined by the corresponding model selective determination unit.08-11-2011
20090287434METHOD FOR EVALUATING REMAINING ELECTRIC CHARGE OF A BATTERY, AND ASSOCIATED SINGLE CHIP SYSTEM - A method for evaluating a remaining electric charge of a battery that is utilized for supplying a single chip system includes: receiving signals from the battery and outputting parameters corresponding to the received signals; temporarily storing the parameters; and calculating the remaining electric charge, and when the single chip system wakes up from a sleep mode, updating the remaining electric charge according to the temporarily stored parameters. An associated single chip system includes: a power management unit for receiving signals from a battery and outputting parameters corresponding to the received signals; a storage unit, coupled to the power management unit, for temporarily storing the parameters; and a control unit, coupled to the storage unit, for calculating a remaining electric charge, wherein when the single chip system wakes up from a sleep mode, the control unit updates the remaining electric charge according to the parameters from the storage unit.11-19-2009
20090088994BATTERY STATE DETERMINING APPARATUS - The present invention provides a battery state determining apparatus which can determine a battery state of a lead battery from an engine starting voltage accurately considering influence of a temperature of a vehicle. An engine starting voltage Vst04-02-2009
20090088992Intelligent battery safety management - A method and apparatus for intelligent battery safety management. Some embodiments of a method for managing battery operation may include receiving a battery pack in a device, where the battery pack is rechargeable and includes a battery cell. In some embodiments data may be collected regarding the operation of the battery cell in the device, and the collected data may be compared with a set of battery reference data. In some embodiments a determination may be made whether the battery cell is non-authentic or defective based at least in part on the comparison between the collected data and the battery reference data.04-02-2009
20110172940CELL DIAGNOSTIC SYSTEM AND METHOD - A system for assessing the accuracy of an electrochemical cell voltage measurement includes a cell discharge circuit electrically coupled to at least one electrochemical cell and configured to partially discharge the at least one cell when the cell discharge circuit is activated, and a cell measurement circuit electrically coupled to the at least one cell and to the cell discharge circuit. The cell measurement circuit is configured to measure a voltage of the at least one cell before activation of the cell discharge circuit and after activation of the cell discharge circuit. The cell measurement circuit compares the voltage before activation of the cell discharge circuit to the voltage after activation of the cell discharge circuit to detect if an error in the voltage measurement occurred.07-14-2011
20110172939System and Method to Determine an Internal Resistance and State of Charge, State of Health, or Energy Level of a Rechargeable Battery - A battery monitoring system includes a current, voltage, and temperature sensor. The system includes a processor in communication with each of the current, voltage, and temperature sensor that is configured to read a first bulk current of the at least one of a battery and a battery cell at a first time using the current sensor, and, when the first bulk current is less than a first threshold, read a second bulk current of the at least one of a battery and a battery cell at a second time using the current sensor. When the second bulk current has a value between a second threshold and a third threshold and the difference between the first time and the second time is less than a pre-determined delay threshold, the processor is configured to use the first and second bulk current values to determine an internal resistance of the battery or cell.07-14-2011
20110270552DELTA-SIGMA AD CONVERTER CIRCUIT AND BATTERY PACK - A delta-sigma AD converter circuit includes a modulation unit to produce pulse density modulated data by pulse density modulation of an analog signal, and a filtering unit to convert the pulse density modulated data into pulse code modulated data, wherein the modulation unit includes a shift register to store and shift the pulse density modulated data in synchronization with a clock, a counter to generate a register store instruction signal and a read request signal upon a count value reaching a predetermined value responsive to a mode, the count value being a count of a number of shifts of the shift register, and a plurality of registers to store plural data obtained by dividing data stored in the shift register and to hold the plural data in such a form that each of the plural data is readable independently of the others, wherein one or more of the plurality of registers store the pulse density modulated data stored in the shift register in response to the register store instruction signal, and the filtering unit reads the pulse density modulated data from one or more of the plurality of registers responsive to the mode in response to the read request signal.11-03-2011
20080288194SYSTEMS AND METHODS OF PROFILING POWER CYCLES IN A BATTERY FOR INDICATING DETRIMENTAL BATTERY OPERATION - Systems and methods for profiling power cycle characteristics in a device powered at least by a battery are disclosed. In one embodiment, the method comprises the steps of: detecting a series of power cycle events, examining the series of power cycle events for at least one indication of reduced life of the battery; storing the indication; and notifying a user of the device about the indication. Each power cycle event indicates a transition between line power and battery power.11-20-2008
20090265125 BATTERY STATE-OF-HEALTH MONITORING SYSTEM AND METHOD - A battery state-of-health monitoring and prognosis method includes off-line training of parity-relation parameters utilized in providing a measure of battery state-of-health.10-22-2009
20080312852Wireless Battery Status Management for Medical Devices - In a wireless medical component (12-18-2008
20080312853Method and Apparatus for Measuring and Monitoring a Power Source - A system and method for monitoring a power source using a site controller (12-18-2008
20120296586METHOD FOR DIAGNOSING THE STATE OF HEALTH OF A BATTERY - A method for diagnosing the state of health of a battery includes, determining a first state-of-charge value from the battery voltage during partial discharge at constant current, determining a second state-of-charge value from the open circuit voltage of the battery, and calculating the state of health from the difference between the first and second state-of-charge values.11-22-2012
20120296587SMOOTH CURRENT CALCULATION APPARATUS, SMOOTH CURRENT CALCULATION METHOD AND BATTERY MONITORING MODULE - A smooth current calculation apparatus, which calculates a smooth current of a secondary battery, includes a digital low-pass filter (11-22-2012
20080215265ELECTRONIC APPARATUS - When discharge power calculated based on a current value detected by a current detector is smaller than expected maximum power, which is the maximum power expected in an actual operation, a discharge efficiency at the expected maximum power is set as a discharge efficiency used for remaining capacity calculation. This ensures that a remaining capacity based on power required for a photographing operation can be detected.09-04-2008
20100145644Method and System for Estimating Life-Expectancy of Secondary Battery - It is an object of the present invention to provide a technique for specifically estimating a life expectancy of a secondary battery. The technique performs the steps of: determining an accumulating portion resistance of the secondary battery from an internal resistance thereof; determining an accumulating portion resistance increase coefficient under operating conditions of the secondary battery; and estimating a life expectancy of the secondary battery from the accumulating portion resistance and the accumulating portion resistance increase coefficient.06-10-2010
20110208451METHOD AND APPARATUS FOR DETECTING CELL DETERIORATION IN AN ELECTROCHEMICAL CELL OR BATTERY - A testing device detects and quantifies cell deterioration of an electrochemical cell or battery. The device contains measuring circuitry adapted to apply time-varying electrical excitation to said cell or battery, to sense time-varying electrical response to said excitation, and to utilize said excitation and response to determine components of complex immittance (i.e., either impedance or admittance) at n+m discrete frequencies, where n is an integer equal to or greater than two and m is an integer equal to or greater than one. Computation circuitry utilizes measured complex immittance components at the n discrete frequencies to evaluate the elements of a 2n-element equivalent circuit model. It then calculates the complex immittance of this model at the m discrete frequencies and mathematically compares components of the calculated immittances with components of the measured immittances at the m discrete frequencies. The results of this comparison are related to the degree of cell deterioration. A pass/fail determination can thus be made based solely upon cell deterioration—without even knowing the battery's manufacturer, group size, or its electrical ratings.08-25-2011
20100145643USER-CONTROLLED APPLICATION-BASED POWER MANAGEMENT - A user-controlled application-based power management function is provided for a battery-operated device. In general, for each of a number of applications of the battery-operated device, a power management function enables a user of the battery-operated device to provide a usage parameter for the application defining a desired amount of usage of the application for each of one or more tasks. For each task, the power management function determines an estimated amount of battery life that is sufficient to provide the desired amount of usage of the application for the task and determines whether the estimated amount of battery life is available. If the estimated amount of battery life is available, the power management function allocates an amount of battery life corresponding to the estimated amount of battery life to the application for the task.06-10-2010
20110208454SCAN TOOL FOR ELECTRONIC BATTERY TESTER - A cable for connecting to an electronic battery tester, includes a first end configured to couple to a databus of a vehicle and a second end configured to couple to the electronic battery tester. An electrical connection extends between the first end and the second end and is configured to couple the electronic battery tester to the databus of the vehicle.08-25-2011
20100274507Method and Device for Improving Battery Life of a Mobile Computing Device - A method and device for extending the useful life of an energy storage device, for a mobile computing device is described. The method (10-28-2010
20110208455METHOD AND APPARATUS FOR MONITORING BATTERY STATUS OF IMPLANTABLE MEDICAL DEVICE - A battery monitoring system monitors status of a battery in an implantable medical device by comparing a measured battery status trend to a calculated battery status trend. The measured battery status trend is a trend of measured parameter values each indicative of an actual state of depletion of the battery. The calculated battery status trend is a trend of calculated parameter values each indicative of an expected state of depletion of the battery.08-25-2011
20110208452NON-INVASIVE METHOD OF DETERMINING THE ELECTRICAL IMPEDANCE OF A BATTERY - A non-invasive method and device for determining the electrical impedance of an electrochemical system for electric power is disclosed. The voltage and current are measured at terminals as a function of time, and these measurements are converted to signals dependent on frequency. The signals dependent on frequency are subjected to at least one segmentation. For each segment, a power spectral density of the current signal Ψ08-25-2011
20100004885DEVICE AND METHOD FOR DETECTING ABNORMALITY OF ELECTRIC STORAGE DEVICE - Provided is an abnormality detecting device for detecting an abnormality of electric storage devices such as a battery pack. Comparators (01-07-2010
20090187359SYSTEM AND METHOD FOR ESTIMATING BATTERY STATE OF CHARGE - A battery system is disclosed herein. The battery system includes a battery and a controller operatively connected to the battery. The controller is configured to estimate a battery state of charge based on a history of the battery current such that the battery state of charge estimate is obtainable during the battery's course of use. A corresponding method for estimating the state of charge of a battery is also disclosed.07-23-2009
20110224928BATTERY STATE ESTIMATOR USING MULTIPLE SAMPLING RATES - A method for estimating vehicle battery parameters that uses two different sampling rates. The method samples a battery terminal voltage and current at a high sampling rate to estimate the battery open circuit voltage and high frequency resistance. The battery state of charge (SOC) is derived from the open circuit voltage. Next, the battery terminal voltage and current are re-sampled at a low sampling rate. Other battery parameters can be extracted from the low-rate sampled signals. Next, all of the battery parameters that were obtained from the two sampling rates are used together to predict battery power.09-15-2011
20090024339METHOD AND APPARATUS FOR CONFIRMING THE CHARGE AMOUNT AND DEGRADATION STATE OF A BATTERY, A STORAGE MEDIUM, AN INFORMATION PROCESSING APPARATUS, AND AN ELECTRONIC APPARATUS - A method and apparatus is used to confirm the charge amount and degradation state of a battery. Various cycle test battery measurements are conducted at prescribed time intervals until the end of the battery life, and the measured values are used to generate a determination table or determination tables showing relationships between battery charge amount and degradation state. To establish the charge amount and degradation state of a subject battery, the subject battery is measured and the results compared with determination table values. The existing charge amount and the state of battery degradation are estimated in accordance with a determination table location of matching values.01-22-2009
20110231122METHOD AND SYSTEM FOR DETERMINING THE KIND OF A BATTERY - A method and system is disclosed for determining the kind of a battery in an automotive vehicle. Based on obtaining a set of battery parameters corresponding to the battery in the automotive vehicle, the set of battery parameters is compared to a number of predetermined sets of known battery parameters to obtain respective comparison values. Based on at least one of the comparison values, the kind of battery in the vehicle is determined to be of the same type and capacity as a known kind of battery that corresponds to one of the predetermined sets of known battery parameters.09-22-2011
20110231124BATTERY MODEL IDENTIFICATION METHOD - In a battery model identification method of the present invention, an M-sequence input electric current production part 09-22-2011
20110231123Battery Analysis Interface and Measurement System - A battery analysis interface enables measurement of a performance of an internal battery while the battery powers an electronic device. The battery analysis interface is configured to connect an analysis device to the battery located within a battery compartment of the electronic device and enclosed by a battery cover. In this way, the battery analysis interface may enable testing of the battery's performance while the electronic device is fully assembled (i.e., the battery cover is secured to electronic device). The battery analysis interface may be connected to directly to terminals on the battery and/or electronic device or connected to the terminals via wires or strips of conductive material.09-22-2011
20100121589APPARATUS AND METHOD FOR IMPLEMENTING APPLICATION USING SOLAR BATTERY CHARGING OF PORTABLE TERMINAL - An apparatus and method for implementing an application using solar battery charging of a portable terminal are provided. The method includes determining the accumulated charging time of the solar battery, extracting an image corresponding to the determined accumulated charging time of the solar battery from a storage unit, and displaying the extracted image on a display unit. Accordingly, a user may be entertained by plant growing at the same time of charging the solar battery.05-13-2010
20090099799Systems, Methods and Circuits for Determining Micro-Short - Various systems and methods for determining micro-shorts are disclosed. For example, some embodiments of the present invention provide battery systems including a determination of potential micro-shorts based on rate of change of state of charge. Such battery systems include: a battery, a processor, and a computer readable medium. The computer readable medium includes instructions executable by the processor to: determine a rate of change of the state of charge of the battery; compare the rate of change of the state of charge of the battery against a threshold; and indicate a potential failure where the result of the comparison is beyond the threshold.04-16-2009
20120078553BATTERY CHARGE AMOUNT INCREASE FACILITY INFORMATION PROVISION DEVICE AND METHOD - A battery charge amount increase facility information provision device provides information relating to a battery charge amount increase facility to a vehicle installed with a battery (03-29-2012
20120078552IN-SITU BATTERY DIAGNOSIS METHOD USING ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY - Method of estimating the internal state of an electrochemical system for electric power storage, such as a battery.03-29-2012
20120078551Battery Detector for Portable Electronic Device and Method Thereof - Various embodiments of a battery detector are provided. In one aspect, a battery detector of a portable electronic device is applied to a battery module without an identification (ID) terminal. When the portable electronic device receives a direct current (DC) voltage provided by an external transformer to conduct a startup procedure, the battery detector detects whether the battery module is connected to the portable electronic device or not, and prevents the portable electronic device from conducting erroneous operations.03-29-2012
20120078550System And Method For Displaying Battery String Cell Data In Polar Coordinate Graphical Form - In accordance with an aspect of the present disclosure, battery string cell data obtained by a battery monitor monitoring the battery string is transmitted to a computer by the battery monitor. The computer has a display coupled to it. The computer displays the battery string cell data for each battery string in graphical form in a polar coordinate graphical image with data for a plurality of battery strings being displayed simultaneously, each in its own polar coordinate graphical image.03-29-2012
20120078549APPARATUS AND METHOD FOR ESTIMATING STATE OF HEALTH OF BATTERY OF VEHICLE - An apparatus and a method for estimating the SOH of a battery of a vehicle are provided, in which degree of deterioration of the battery is estimated from temperature change and traveling distance. Accordingly, the SOH of the battery and remaining traveling distance can be accurately estimated.03-29-2012
20090248332Maximizing Battery Life - Maximizing battery life includes identifying a characteristic curve for a voltage regulating component. A raw voltage value of a battery associated with the voltage regulating component or power converting component is detected. A mathematical model is generated based on the identified characteristic curve. In addition, a value of a regulated voltage output of the voltage regulating component or a converted voltage output of the power converting component is predicted by using the generated mathematical model to convert the detected raw voltage value of the battery.10-01-2009
20120035872EXTENDED BATTERY DIAGNOSIS IN TRACTION BATTERIES - The invention relates to a method and a device for determining the properties of a battery, in particular a traction battery. Particularly the invention determines a battery state such as the capacity and/or a charging state and/or a remaining service life of the battery, preferably with an observer and a battery model for a model-based state identification. According to the invention, a querying module for querying an operational state of a consumer supplied by a battery and a first control module for starting the determination of the properties of the battery, only when the operational state of the supplied consumer shows that it does not operate in the principal mode, are provided.02-09-2012
20090259419BATTERY CONDITION DIAGNOSIS APPARATUS - A battery condition diagnosis apparatus for a vehicle gradually supplies electricity to an electric motor of an electric power steering apparatus when a predetermined time elapses after an ignition switch is turned off. The apparatus diagnoses the deteriorated condition of the battery on the basis of the amount of supplied electricity and the detected battery voltage which changes in accordance therewith. The electric motor may be a brushless DC motor. In this case, current is supplied to the electric motor such that only d-axis armature current Id in the d-q coordinate system flows, to thereby prevent the electric motor from rotating, whereby safety is secured. Accordingly, the condition of the battery can be accurately diagnosed by supplying electricity to the electric motor without changing the condition of the vehicle.10-15-2009
20100161259AGING STATUS DIAGNOSTIC APPARATUS FOR POWER CONVERSION SYSTEM, AND METHOD THEIR OF - The present invention relates to an apparatus capable of diagnosing the aging state of a power conversion system at ordinary times and its diagnosing method to ensure the reliability of a power conversion system. The apparatus includes a current sensing means for detecting the output current of a inverter switching module or an electrolytic capacitor, and measurement and diagnosis means for extracting elements related to the aging status of the power conversion system by receiving the output current waveform of the inverter switching module and magnitude of each harmonic or an impedance voltage signal of the electrolytic capacitor. Furthermore, it is preferable that the apparatus further includes a measurement current generation means for generating measurement current to be supplied to the electrolytic capacitor. By analyzing an average value or the magnitude of harmonics by FFT analysis of the output current waveform of the inverter switching module and measuring an ESR value or a loss angle tan δ of a DC bus of the power conversion system, the present invention is able to monitor and diagnose the abnormal state attributable to the aging or degradation of the power conversion system in advance.06-24-2010
20090259420ADAPTIVE SURFACE CONCENTRATION BATTERY CHARGING - Some embodiments of the present invention provide a system that adaptively charges a battery, wherein the battery is a lithium-ion battery which includes a transport-limiting electrode, an electrolyte separator and a non-transport-limiting electrode. To charge the battery, the system first determines a lithium surface concentration at an interface between the transport-limiting electrode and the electrolyte separator. Next, the system uses the determined lithium surface concentration to control a charging process for the battery so that the charging process maintains the lithium surface concentration within set limits.10-15-2009
20100153039Apparatus and Method for Testing a Power Source - A method and apparatus for communicating a battery information to a remote device or database. The battery tester and/or charger can communicate with a wired or wireless connection to the remote device. Battery indentifying information, test results and warranty information can be communicated to the remote device or database.06-17-2010
20100153037Battery-capacity supervisory control device and method thereof - A battery-capacity supervisory control device includes a DC current/DC voltage detecting loop, a microprocessor and a display unit. The DC current/DC voltage detecting loop is connected between a battery and a power inverter for detecting a first voltage value before the battery electrically discharges, and a second voltage value as well as an output current value of the battery after electrically discharging for a time unit of the battery, to calculate the available capacity of the battery and to calculate the available time of the battery under loading according to the available capacity of the battery through the microprocessor. The display simultaneously displays the available time of the battery under loading and the available capacity of the battery. Therefore, a user effectively supervises and assures the battery is in the usable state.06-17-2010
20100191491SYSTEM, METHOD, AND ARTICLE OF MANUFACTURE FOR DETERMINING AN ESTIMATED BATTERY PARAMETER VECTOR - A system, a method, and an article of manufacture for determining an estimated battery parameter vector indicative of a parameter of a battery are provided. The method determines a first estimated battery parameter vector indicative of a parameter of the battery at a first predetermined time based on a plurality of predicted battery parameter vectors, a plurality of predicted battery output vectors, and a first battery output vector.07-29-2010
20100174502SYSTEM FOR MONITORING EXPOSURE TO VIBRATION - A portable instrument, described in GB2413189, is held between the fingers of one hand and measures the cumulative exposure of a worker to vibration. However, this instrument will not comfortably fit the hands of all workers There is also an administrative problem in administering the allocation of different instruments to respective workers at the beginning of a shift, recording the measurements at the end of a shift and ensuring that instruments are adequately charged. The problem is solved by using a docking station (07-08-2010
20100191490METHOD AND DEVICE FOR DETERMINING THE STATE OF CHARGE OF A BATTERY - For medical implants it is not only important to have a battery powering the implant with a long run-time, but to know exactly at any point in time how long the remaining run-time is. On the other hand the implant together with its battery shall be as user-friendly as possible requiring no or hardly any interaction with the device except for recharging of the battery. To better address these concerns, a method for determining the state of charge of a battery is suggested comprising the steps: charging the battery, discharging of the battery, predicting the state of charge of the battery using a recharge prediction unit, wherein the recharge prediction unit is disconnected from the battery during the discharging of the battery. The prediction of the state of charge of the battery during the discharge of the battery, i.e. during powering of a device connected to the battery, without carrying out any measurements during the discharging of the battery, enables a local separation of the battery or the implant powered by the battery and the recharge prediction unit during the discharge cycle of the battery.07-29-2010
20100217552Battery Management System for Measuring Remaining Charges in a Battery Packet with Multi-Cells - A battery management system for measuring remaining charges in a battery packet with multi-cells is disclosed. The battery comprises electric property and non-electric property measuring modules, multi-cells, a slave communication protocol controller, and a battery protective circuit. The portable device comprises an embedded controller and a charge gauge module and a master communication protocol controller. The parameters demanded for calculating the remaining charges of the multi-cells are measured by the electric property and non-electric property measurement modules and transferred through the SMBus interface to the embedded controller and the charge gauge module. Therefore, the battery management system can manage the remaining charges of every cell in the multi-cells without a microprocessor in the battery packet.08-26-2010
20100161258Measurement apparatus and system capable of displaying battery power - A measurement apparatus capable of displaying battery power includes a battery cell, a measurement chip and an information display unit. The battery cell stores the battery power. The measurement chip further includes an acquiring unit, a converting unit, a processing unit and a display driving unit. The acquiring unit acquires the battery power from the battery cell to generate a first power signal. The converting unit converts the first power signal into a second power signal. The processing unit analyzes and computes the second power signal to provide battery power information. The display driving unit drives the information display unit. The battery power information can selectively represent the battery power corresponding to the battery cell to a user through the display driving unit.06-24-2010
20090254290Method for estimating remaining capacity of battery - The present invention provides a method for estimating a remaining capacity of a battery. The method comprises: measuring a current value, a voltage value and temperature of the battery; correcting the current value based on the voltage value; calculating a current integration value by integrating the corrected current value and calculating a current integration capacity from the calculated current integration value by reflecting a charge/discharge efficiency; determining a battery forward voltage capacity from the measured current value, voltage value and temperature, and determining whether it is necessary to correct the current integration capacity based on the forward voltage capacity; converting the current integration capacity into a remaining capacity, if it is determined that it is not necessary to correct; and correcting, if it is determined that it is necessary to correct, the current integration capacity and converting the corrected current integration capacity into a remaining capacity. With the method, SOC of the battery can be more accurately calculated.10-08-2009
20100217551Embedded microprocessor system for vehicular batteries - A computer system embedded inside a starter or deep cycle battery that includes manufacturing data, the means to monitor battery pressure, the means to monitor electrolyte level and the means to transfer information to an external device.08-26-2010
20100235121METHODS AND APPARATUS FOR MODELING, SIMULATING, ESTIMATING AND CONTROLLING POWER CONSUMPTION IN BATTERY-OPERATED DEVICES - A computer-based processing system simulates and estimates power consumption (i.e., battery life) in a battery-operated based on a set of operating parameters which is intended to control operation of the battery-operated device in a first operating mode. In the event the estimated/projected battery life fails to meet a predetermined desired battery life (i.e., operational life of the device), one or more operating parameters may be modified and power consumption is again calculated. Several iterations may occur. When a desired battery life is achieved, the battery-operated device is configured with a final set of operating parameters and, when deployed the device operates in accordance with the configured parameters.09-16-2010
20100241377BATTERY MANAGEMENT SYSTEM AND CHARGER - A battery management system includes a battery attached with an identification ID; and a plurality of chargers for reading the identification ID attached to the battery, the chargers associating the read identification ID with information indicative of an end of charging the battery and sending the information, the chargers charging the battery. The battery management system also includes a management server connected to each of the chargers for receiving the information indicative of the end of charging the battery associated with the identification ID and sent from each of the chargers. The management server cumulatively sums, as the number of chargings, the number of receptions of the information indicative of the end of charging the battery for each identification ID, and the management server associates the identification ID with the cumulatively summed number of chargings and allows the number of chargings to be recorded.09-23-2010
20100241376CONTROL APPARATUS AND CONTROL METHOD FOR SECONDARY BATTERY - An ECU calculates an evaluation value decrease amount D(−) in response to a reduction of unevenness of lithium ion concentration caused by diffusion of lithium ions resulting from a lapse of one cycle time ΔT, calculates an evaluation value increase amount D(+) in response to an increase of the unevenness of the lithium ion concentration caused by discharging during a lapse of one cycle time ΔT, and calculates a present value D(N) of a battery deterioration evaluation value D due to high-rate discharging, as a previous value D(N−1)−evaluation value decrease amount D(−)+evaluation value increase amount D(+). If battery deterioration evaluation value D exceeds a predetermined target value E, the ECU sets a discharging power limit value WOUT that is a limit value of electric power to be discharged from a battery, to a value lower than a maximum value W(MAX).09-23-2010
20100211341BATTERY PACK AND DETECTION METHOD - A battery pack includes: a plurality of batteries; a detection section to measure a voltage of each of the plurality of batteries to obtain a voltage variation of each of the plurality of batteries at different lapse times and compare the obtained voltage variations to thus detect whether at least one of the plurality of batteries has been replaced; and a controller to disable, when a result of the detection by the detection section indicates that at least one of the plurality of batteries has been replaced, a use of the plurality of batteries.08-19-2010
20100211340SYSTEM AND METHOD FOR MANAGING ELECTRIC VEHICLES - A system and method for managing a plurality of electric vehicles with a fleet management portal is described herein. In one embodiment, a machine implemented method for managing one or more fleets of electric vehicles includes monitoring one or more fleets of electric vehicles using a fleet management portal associated with a server. Next, the method includes monitoring a plurality of charge transfer devices using the fleet management portal. Next, the method includes receiving charging information from the charge transfer devices. Next, the method includes determining a charging status for each electric vehicle based on the charging information. Next, the method includes generating one or more reports having the charging status for each electric vehicle.08-19-2010
20120130662METHOD FOR CHARACTERIZING AN ELECTRIC BATTERY - A determination of particular parameters for modeling a battery such as a lithium-ion battery, for example the charge transfer resistance and the double layer behavior at the surface of electrical connections, by extrapolating results obtained in a stationary mode, for example without charge or discharge current, to quick charge or discharge modes, where traditional measurements are too slow, since the parameters vary as a function of the charge or discharge state.05-24-2012
20120143543MEASURING DEVICE AND ELECTRONIC APPARATUS USING THE SAME - A measuring device includes a number of detectors and a processing unit. The detectors are used for detecting a supply voltage of a power source, and respectively generating a number of detecting signals. The processing unit is used for determining whether each of the detecting signals is at a first level or a second level, calculating a total number of the first level detecting signals, and acquiring a current power level of the power source according to the total number.06-07-2012
20120143542STATE-OF-CHARGE ESTIMATION METHOD AND BATTERY CONTROL UNIT - A SOC (state of charge) estimation method for a rechargeable battery includes: measuring a battery parameter of the rechargeable battery; judging whether the battery parameter of the rechargeable battery is stable; if the battery parameter of the rechargeable battery is not stable yet, estimating an open circuit voltage of the rechargeable battery by a fuzzy control and expanding an established experiment data of the rechargeable battery into a 3D function by the fuzzy control; and calculating a time domain dynamic equation and converting into a SOC function, substituting the SOC function into the fuzzy control to estimate an SOC estimation value, wherein the time domain dynamic equation performing a time domain dynamic monitor.06-07-2012
20100198537ELECTRONIC DEVICE AND METHOD FOR CALCULATING REMAINING USABLE TIME OF BATTERY - A video camera 08-05-2010
20090276172INTERNAL STATE ESTIMATING DEVICE FOR SECONDARY BATTERY AND METHOD FOR ESTIMATING INTERNAL STATE OF SECONDARY BATTERY - By using a battery model capable of estimating the internal reaction of a secondary battery based on a parameter value, a battery model portion provides the battery model with the parameter value obtained from a parameter generating portion and estimates the internal state of the secondary battery. The parameter generating portion generates the parameter value including a material property value of the secondary battery, based on information indicating a usage state of the secondary battery. The battery model is updated by updating the parameter value. This reduces a difference between the actual internal state of the secondary battery and the internal state of the secondary battery estimated by the battery model.11-05-2009
20090319209BATTERY MANAGEMENT SYSTEM AND DRIVING METHOD THEREOF - A battery management system, and a driving method thereof, includes a sensing unit and an MCU. The sensing unit stores a detection voltage that corresponds to a cell voltage of a first battery among a plurality of battery cells, and measures a current of the battery at an end point of storing of the detection voltage. The MCU controls the sensing unit to measure the battery current at the end point of storing of the detection voltage.12-24-2009
20090319208BATTERY MANAGEMENT METHOD - Disclosed herein is a battery management method. The battery management method includes measuring voltage, current and temperature of a battery, calculating the State Of Charge (SOC) of the battery using the integration value of the measured current of the battery, and calibrating the calculated SOC of the battery. The voltage, current and temperature of the battery are measured by an Electronic Control Unit (ECU).12-24-2009
20120143541SYSTEM AND METHOD FOR DETECTING COUNTERFEIT AND DEFECTIVE BATTERIES USING BATTERY CHARACTERISTIC PROFILES - Systems and methods are disclosed for detecting whether a battery in an electronic device is counterfeit or defective. An actual battery characteristic profile is generated by recording the performance of the battery during use of the battery by the device. This profile is then compared to its corresponding expected characteristic profile. If the profiles are not substantially similar (i.e. if the error between the two curves exceeds a given error threshold), the battery is determined to be counterfeit or defective and responsive action is taken.06-07-2012
20110130986System and Method For Maximizing a Battery Pack Total Energy Metric - A system and method for maximizing a battery pack total energy metric indicative of a total energy of a battery pack is provided. The method includes receiving battery cell charge capacity estimates for all cells in the battery pack, composing battery pack configurations comprising subsets of the totality of battery cells, evaluating a battery pack energy metric for every battery pack configuration that is composed, selecting the battery pack configuration that has the maximum battery pack energy metric, and storing values indicative of the selected battery pack configuration in a memory.06-02-2011
20090112495METHOD FOR ESTIMATING BATTERY LIFE IN A HYBRID POWERTRAIN - A method for estimating an operating life for an electrical energy storage system electrically connected to transmit power to a hybrid powertrain system includes monitoring temperature state-of-charge and electric current of the electrical energy storage system, calculating a battery life metric for a time interval based upon the temperature, the state-of-charge, and the electric current discharge, determining a total battery life metric therefrom and determining the remaining operating life of the electrical energy storage system.04-30-2009
20090112496BATTERY PACK, METHOD OF CHARGING SECONDARY BATTERY AND BATTERY CHARGER - A battery pack includes a secondary battery including a plurality of cell blocks, a measuring section, a charge and discharge control switch, a protection circuit, and a memory. The measuring section detects a voltage, a current, and an internal resistance, of the secondary battery. The controller monitors the voltage and the current of the secondary battery and outputs a request signal indicative of a charge condition to charge the secondary battery in accordance with the charge condition which is set. The protection circuit monitors voltages of the plurality of cell blocks. The memory registers an initial internal resistance of the secondary battery. The controller calculates a deterioration coefficient by a ratio of the internal resistance detected by the measuring section to the initial internal resistance registered in the memory, and changes the charge condition in accordance with the deterioration coefficient.04-30-2009
20080249724SYSTEM AND METHOD OF BATTERY CAPACITY ESTIMATION - In accordance with the teachings described herein, systems and methods are provided for battery capacity estimation. A profile table may be used that relates a plurality of battery profile values with a plurality of operating parameter values. The profile table may be accessed to translate one or more measured operating parameters into one or more corresponding battery profile values. One or more of the battery profile values may be adjusted by a correction factor to generate a corrected battery profile value. The available capacity of the battery may be calculated using the corrected battery profile value. The correction factor may then be automatically calibrated by using an estimated battery profile value calculated from the one or more measured operating parameter.10-09-2008
20090018785Model-based determination of power source replacement in wireless and other devices - A model-based system and method for analyzing power source performance and optimizing operational costs are provided. Data from the power source (such as a battery) and/or a device associated with the power source is analyzed and processed to predict an operating life of the power source. This could allow, for example, a power source replacement schedule to be generated for the device. If the analysis indicates that abnormal conditions exist or that any user-defined alerts are warranted, a message could also be sent to an operator terminal. The system and method may continue to monitor the device and thus provide real-time data. The data may also be stored in memory, collected over time, and analyzed or used in various ways. The system and method thus provide a cost effective and reliable analysis of power source performance and any associated operational and replacement costs.01-15-2009
20130132010METHOD AND APPARATUS FOR BATTERY CHARGE LEVEL ESTIMATION - There is provided an apparatus for battery life estimation comprising an energy harvester; an energy storage apparatus, connected to the energy harvester, the energy storage apparatus representative of a unit of measure; a battery for receiving energy from the storage apparatus; and a processor for monitoring the energy provided by the storage apparatus, monitoring energy provided to the battery by other charging apparatus and monitoring the energy being delivered by the battery; wherein the processor calculates the remaining life of the battery based on the number of energy storage apparatus units that are provided to and delivered from the battery.05-23-2013
20130132011DEVICE AND METHOD FOR DIAGNOSING RECHARGEABLE BATTERY, AND VEHICLE - A diagnostic device diagnoses a lithium ion battery including a plurality of battery blocks. If a condition is established for starting a diagnosis, the diagnostic device starts discharging the battery, and after each battery block has a voltage decreased to a measurement starting voltage until the block has the voltage decreased to a measurement ending voltage the block discharges an amount of power, which the diagnostic device calculates for the battery block. If all blocks each discharge power in an amount larger than a brand-new product threshold value the diagnostic device determines that the battery is in a brand new condition. If all blocks each discharge power in an amount larger than a uselessness threshold value the diagnostic device determines that the battery is useful. If at least one block discharges power in an amount smaller than the uselessness threshold value the diagnostic device determines that the battery is useless.05-23-2013
20110112781METHOD FOR ESTIMATING BATTERY DEGRADATION IN A VEHICLE BATTERY PACK - A method for gathering information from battery sensors—for instance, information regarding the state-of-charge (SOC), temperature and/or other characteristics of battery cells in a vehicle battery pack—and using that information to estimate or predict battery degradation or state-of-health (SOH). According to an exemplary embodiment, the method uses both a time-based algorithm and an event-based algorithm to predict or estimate battery degradation. The event-based algorithm may select certain data from the battery conditions (e.g., a state-of-charge (SOC) swing (ΔSOC) or an SOC maximum (SOC05-12-2011
20090070052SECONDARY-BATTERY LIFE ESTIMATION APPARATUS AND METHOD - A secondary-battery life estimation apparatus includes: a voltage measuring portion measuring a terminal voltage of a secondary battery to be measured; a first memory storing in advance a terminal voltage V03-12-2009
20090037125SYSTEM, METHOD, AND ARTICLE OF MANUFACTURE FOR DETERMINING AN ESTIMATED BATTERY STATE VECTOR - A system, a method, and an article of manufacture for determining an estimated battery state vector indicative of a state of a battery are provided. The method determines a first estimated battery state vector indicative of the state of the battery at a first predetermined time based on a plurality of predicted battery state vectors, a plurality of predicted battery output vectors, and a first battery output vector.02-05-2009
20130138369METHOD AND APPARATUS FOR ONLINE DETERMINATION OF BATTERY STATE OF CHARGE AND STATE OF HEALTH - An online method and apparatus for determining state of charge (SoC) and state of health (SoH) of batteries on platforms that present dynamic charge and discharge environments is disclosed. A rested open circuit voltage (OCV) may be estimated online using a battery dynamic model along with measured terminal voltage, current and temperature. The SoC and SoH can then be determined from this estimated OCV. The apparatus and methods may estimate SoC and SoH of a battery in a real-time fashion without the need to a) disconnect the battery system from service; b) wait for a predefined rest time; or c) depolarize the battery.05-30-2013
20130138370BATTERY STATE-OF-CHARGE ESTIMATION METHOD AND BATTERY MANAGEMENT SYSTEM - Provided are a battery state-of-charge (SOC) estimation method and a battery management system which are capable of estimating an SOC using an inexpensive processor and a small-capacity memory. The SOC estimation method includes an SOC table creation step, an SOC calculation step, an SOC comparison step, and a processing step. The battery management system includes a battery, a sensing resistor, a control switch unit, and a processor.05-30-2013
20100332166INFORMATION PROCESSING APPARATUS AND BATTERY DEGRADATION DETECTION METHOD - According to one embodiment, an information processing apparatus is configured to be powered by a battery. The apparatus includes a charging circuit, a charging current measuring module, a charging time measuring module, and a calculation module. The charging circuit charges the battery by using power from an external power supply. The charging current measuring module measures a charging current supplied to the battery from the charging circuit. The charging time measuring module measures a time during which the battery is charged by the charging current. The calculation module calculates a charging capacity from the measured charging current and the measured charging time, and compares an accumulated charging capacity, which is obtained by cumulatively adding the calculated charging capacity to a previously calculated charging capacity, with a reference value, in order to detect degradation of the battery.12-30-2010
20100332165Method of Estimating Pulse Response Using an Impedance Spectrum - Electrochemical Impedance Spectrum (EIS) data are used directly to predict the pulse performance of an energy storage device. The impedance spectrum of the EIS is obtained in-situ using pre-existing techniques. A simulation waveform is configured such that the period of the pulse is greater than or equal to the lowest frequency of the impedance measurement. If the pulse is assumed to be periodic for analysis purposes, the complex Fourier series coefficients can be obtained. The number of harmonic constituents are selected so as to appropriately resolve the response, but the maximum frequency should be less than or equal to the highest frequency of the impedance measurement. In some cases, the measured frequencies of the impedance spectrum do not match the corresponding harmonic components of the simulated pulse wave. This is resolved by estimating the impedance measurements at the desired frequencies using linear interpolation, cubic spline fits, or other comparable methods. Using a current pulse as an example, the Fourier coefficients of the pulse are multiplied by the impedance spectrum at the corresponding frequency to obtain the Fourier coefficients of the voltage response to the desired pulse. The Fourier coefficients of the response are then summed reassemble to obtain the overall time domain estimate of the voltage using the Fourier series analysis. Thus, the response of an energy storage device to an anticipated or desired pulse can be estimated using low-level, charge neutral impedance measurements combined with Fourier series analysis.12-30-2010
20110130985System and Method for Recursively Estimating Battery Cell Total Capacity - A system and method for determining an estimated battery cell total capacity indicative of a total capacity of a battery cell is provided. The method includes receiving a first battery cell state-of-charge estimate at a first time and receiving a second battery cell state-of-charge estimate at a second time subsequent to the first time, measuring an integrated battery cell current value indicative of the integrated battery cell current between the first time and the second time, updating at least one recursive parameter based on the first battery cell state-of-charge estimate, the second battery cell state-of-charge estimate, and the integrated battery cell current value, determining the estimated battery cell total capacity based on at least one recursive parameter, and storing a value corresponding to the estimated battery cell total capacity in a memory.06-02-2011
20100250163CONTROL DEVICE OF SECONDARY BATTERY AND MAP CORRECTION METHOD - A two-dimensional map for calculating an SOC of a secondary battery is corrected. A battery ECU obtains a voltage index of a secondary battery. The voltage index is, for example, a no-load voltage of the secondary battery. When an amount of change of the calculated no-load voltage from an initial state falls outside a predefined range, the battery ECU corrects the two-dimensional map of initial state which is stored in advance in a storage unit using data obtained by statistically processing a plurality of two-dimensional maps obtained from a plurality of vehicles.09-30-2010
20100030499Status Detector for Power Supply, Power Supply, and Initial Characteristic Extracting Device for Use with Power Supply - In a status detector for a power supply, a power supply, and an initial characteristic extracting device for use with the power supply, a measuring unit obtains measured values of at least current, voltage and temperature of the electricity accumulating unit. A processing unit executes status detection of the electricity accumulating unit by using the measured values and the characteristic information of the electricity accumulating unit which is stored in a memory unit. A discrepancy detecting unit detects the presence of a discrepancy away from a theoretical value when a result of the status detection is changed over a predetermined threshold or reversed with respect to the measured values. A modifying unit modifies the characteristic information depending on the detected discrepancy.02-04-2010
20090048793State and parameter estimator having integral and differential components for electrical energy accumulators - A device is described for ascertaining state variables and/or parameters of a mathematical energy accumulator model, in particular a battery model, that describes the electrical properties of the energy accumulator on the basis of various state variables and parameters, the mathematical energy accumulator model having correction equations by which the state variables and/or the parameters are corrected and adjusted to the actual operating performance of the energy accumulator. A particularly rapid and accurate compensation of the energy accumulator model may be achieved if the error between a measured battery performance quantity and the battery performance quantity calculated by the energy accumulator models, a differentiated component of the error and an integrated component of the error are calculated, the individual components are each weighted using a weighting factor and the weighted error components are taken into account in correction of a state variable and/or a parameter.02-19-2009
20090326841Pattern recognition approach to battery diagnosis and prognosis - A method is provided for determining a state-of-health of a battery in a vehicle-during an engine cranking phase. An engine cranking phase is initiated. Characteristic data is recorded that includes battery voltage data and engine cranking speed data during the engine cranking phase. The characteristic data is provided to a pre-processing unit. The pre-processing unit normalizes the characteristic data for processing within a classifier. The normalized data is input o the classifier for determining the vehicle battery state-of-health. The classifier has a trained state-of-health decision boundary resulting from a plurality of trials in which predetermined characterization data is collected with known classes. The battery state-of-health is classified based on the trained state-of-health decision boundary.12-31-2009
20100063758ELECTRONIC APPARATUS WITH POWER INDICATION FUNCTION - An electronic apparatus with a power indication function is connected to an adapter. The electronic apparatus includes a host, a power jack, a rechargeable battery, a power indication element and a controller. The power jack is disposed on the host for connecting with the adapter. The rechargeable battery is disposed in the host and is electrically connected to the power jack. The power indication element has a switch disposed adjacent to the power jack and a power indicator disposed in the host. The controller is electrically connected to the rechargeable battery, the switch and the power indicator. When the switch turns on, the controller detects the remained power in the rechargeable battery and the remained power is indicated by the power indicator.03-11-2010
20100063757Microcomputer-equipped system and battery pack for electric power tool - A microcomputer-equipped system for electric power tool includes a microcomputer, a reference voltage generator, a reference data storage unit, and a first determiner. The microcomputer includes an analog-to-digital (AD) converter and at least one AD port. The reference voltage generator generates and inputs to the AD port a reference voltage having a predetermined value. The reference data storage unit prestores reference data corresponding to the reference voltage. The first determiner compares diagnostic data obtained by AD conversion by the AD converter of the reference voltage inputted to the AD port with the reference data to determine, in case that difference between the diagnostic data and the reference data is out of a predefined allowable range, that an AD abnormal state has occurred in which a correct result of the AD conversion is unable to be obtained from the AD converter.03-11-2010
20100063756PORTABLE DEVICE BATTERY OPTIMIZATION ROUTING SYSTEM - A battery life management unit for managing the battery life of a portable device. The battery life management unit determines a scheduled event for a user of a portable device and estimates whether battery power of the portable device will last throughout the scheduled event. If the battery power of the portable device is estimated not to last throughout the scheduled event, the battery life management unit determines whether a location of the scheduled event provides one or more battery charging resources. If the location of the scheduled event provides one or more battery charging resources, the battery life management unit reserves a battery charging resource for the user of the portable device.03-11-2010
20110178743EARLY DETECTION OF MINIMUM CELL VOLTAGE DEGRADATION OF A FUEL CELL STACK - A method for determining a low performing cell in a fuel cell stack. The method measures the voltage of each cell in the fuel cell stack and calculates an average cell voltage of all of the cell voltages from the fuel cell stack at a plurality of stack current densities. The method also identifies a minimum cell voltage from all of the cell voltages from the fuel cell stack at the plurality of stack current densities that the average cell voltages are calculated and determines a relative delta voltage relationship between the average cell voltage and the minimum cell voltage at each of the plurality of stack current densities. The relative delta voltage relationships are used to determine whether the minimum cell voltage indicates a persistent stack problem.07-21-2011
20110178745ELECTRONIC DEVICES, REMAINING BATTERY ENERGY LEVEL DISPLAYING METHOD, AND OPERABLE TIME DISPLAYING METHOD - Provision of electronic devices adapted to display a remaining energy level of a battery in service in combination with remaining energy levels of batteries out of service, or display an operable time by a remaining energy level of a battery in service in combination with an operable time by remaining energy levels of batteries out of service, and a remaining battery energy level displaying method and an operable time displaying method applicable thereto.07-21-2011
20110178744SOLAR POWERED OPERATION OF MEDICAL DEVICES - A medical device includes an energy storage unit that is configured for being supplied with solar energy. The medical device is configured for an evaluation of a charging state of the storage unit according to a medical workflow and for the output of information related to the result of the evaluation or a signal related to the evaluation. A supply of energy is provided during the workflow.07-21-2011
20110082655METHODS AND SYSTEMS FOR MONITORING LIFT USAGE - Methods and systems for lift monitoring are described. In one embodiment, a first operation signal may be received from a first relay coupled to an electro-mechanical patient lift when the electro-mechanical patient lift is being operated in a first position. A second operation signal may be received from a second relay coupled to the electro-mechanical patient lift when the electro-mechanical patient lift is being operated in a second position. A determination of whether a lift qualification threshold is met may be based on the receiving of the first operation signal and the second operation signal. An occurrence of a lift may be recorded when a determination is made that the lift qualification threshold is met. Additional methods and systems are disclosed.04-07-2011
20110153240Method for Determining Power Supply Usage - The remaining capacity of a battery may be monitored with a microprocessor by integrating a voltage measured across a current sense resistor coupled in series with the battery. The microprocessor may measure electrons passing through the battery by sampling the integrator and summing the values recorded from the integrator. Each time the integrator is sampled, the microprocessor may reset the integrator to prevent the integrator from saturating. The remaining capacity of the battery may be calculated based on calibration values and the sum of electrons measured by the integrator. The remaining capacity may be communicating to remote users through a network and displayed in an executive dashboard.06-23-2011
20110077881ABNORMALITY PREDICTION SYSTEM FOR SECONDARY BATTERIES - An abnormality prediction system for secondary batteries according to the present invention includes: a parameter value detection portion that detects parameter values each corresponding to each of a plurality of secondary batteries to determine whether all the parameter values are normal or not; and a singular state determination portion that determines, if a difference between a reference value calculated by use of all the parameter values determined to be normal by the parameter value detection portion and at least one of the parameter values is not less than a threshold value, the secondary battery corresponding to the parameter value with the difference not less than the threshold value to be in a state different from those of the other secondary batteries out of the plurality of secondary batteries.03-31-2011
20110077879DETERMINING BATTERY DC IMPEDANCE - A method and apparatus for measuring battery cell DC impedance by controlling charging of the battery cell. The method includes real-time characterization of a battery, (a) measuring periodically a DC impedance of the battery to determine a measured DC impedance; (b) ratioing the measured DC impedance to a reference DC impedance for the battery to establish an impedance degradation factor; (c) obtaining, during use of the battery and responsive to a set of attributes of the battery, an operational reference impedance for the battery; and (d) applying the impedance degradation factor to the operational reference impedance to obtain a real-time effective impedance for the battery.03-31-2011
20110060539METHOD OF ESTIMATING THE NON-MEASURABLE CHARACTERISTICS OF AN ELECTROCHEMICAL SYSTEM - The present invention relates to a method of estimating the internal state of an electrochemical system using mathematical models which allow management of an electrochemical battery during operation, and notably estimation of the characteristics of the battery that are not directly measurable. For applications relating to hybrid and electric vehicles, the most significant internal characteristics are the state of charge (SoC), the state of health (SoH) and the thermal state. Reconstruction of the internal characteristics is achieved using mathematical models of the battery. The method can be used synchronously with the operation of the battery itself (real time) with a reduced or off-line mathematical model, for calibration, optimization or validation of management and estimation strategies. The method is useful for battery sizing, which has to be optimized according to the energy and thermal management strategies.03-10-2011
20120303302Systems and Methods for Monitoring Deterioration of a Rechargeable Battery - Systems and methods are provided for monitoring the deterioration of a rechargeable battery. A battery monitoring system may be used to store charging information, discharge information and storage information for a rechargeable battery to a data store. The charging information may include a number of charge cycles incurred by the rechargeable battery. The discharge information may include a number discharge cycles incurred by the rechargeable battery. The storage information may include information relating to periods when the rechargeable battery is not being actively charged or discharged. The battery monitoring system may be further used to determine an amount of deterioration of a battery performance characteristic based on the stored charging information, discharge information and storage information.11-29-2012
20120303301DEVICE FOR ESTIMATING INTERNAL RESISTANCE OF BATTERY AND BATTERY PACK INCLUDING THE SAME - A device for estimating an internal resistance of a battery and a battery pack including the same. The device stores voltage difference values between sampled voltage values and current difference values between sampled current values for a predetermined period of time, periodically selects a maximum value or a minimum value of stored voltage difference values and a maximum value or a minimum value of the stored current difference values, calculates a covariance value and a variance value of the selected voltage difference values and the selected current difference values, and estimates the internal resistance of the battery based on the calculated covariance value and variance value.11-29-2012
20120203482DIAGNOSTIC METHOD TO MONITOR BATTERY CELLS OF SAFETY-CRITICAL SYSTEMS - System and method to detect battery cell malfunctions through redundant offset battery cell monitoring. Redundant battery monitoring may be implemented in a battery monitoring system to process battery cell voltages at offset times. A processor may compare offset voltage samples for a particular battery cell. If the samples vary outside a predetermined range, the processor may indicate a battery cell malfunction.08-09-2012
20110060538Estimation of State-Of-Health in Batteries - Methods and apparatuses for estimation of a state-of-health in a battery are disclosed. An example method comprises: determining if a terminal voltage of the chemical battery differs from a calculated terminal voltage; in response to determining that the terminal voltage of the chemical battery differs from the calculated terminal voltage, calculating a range of voltages by taking the convolution of a terminal current of the chemical battery with a range of impulse responses from a look up table of impulse responses corresponding to different states-of-health; comparing the terminal voltage of the chemical battery with the range of calculated voltages to determine a second impulse response that corresponds to the case where the terminal voltage matches the calculated voltage; and using the look up table of impulse responses corresponding to different states-of-health to determine the state-of-health of the chemical battery from the second impulse response. Other embodiments are described and claimed.03-10-2011
20110040505Testing System and Method for Testing Charging Circuit - A testing system for testing a charging circuit includes a setting unit, a virtual battery, and a control device. The setting unit is utilized for setting a charging configuration of the charging circuit according to a battery status message, to make the charging circuit to output a charging power accordingly. The virtual battery includes a battery status generating unit for generating the battery status message according to a first control signal, and a load unit for generating a load for the charging circuit according to a second control signal, so as to receive the charging power outputted from the charging circuit, and recording variation of the charging power. The control device is utilized for generating the first control signal and the second control signal, and storing information recorded by the load unit as a digital data for evaluate the charging circuit.02-17-2011
20100262392SYSTEM AND METHOD FOR IMPLEMENTING DATA STORAGE MODES IN A DATA STORAGE SYSTEM - The present disclosure provides a data storage system configured to implement data storage modes based on a battery health indicator. In one embodiment, a data storage system is provided and comprises an input interface configured to receive data and the battery health indicator. In one example, the data and battery health indicator is received from a host system through the input interface. The data storage system also includes at least one data storage device and a controller configured to store data in the at least one data storage device. The controller is configured to implement a data storage mode based on the battery health indicator.10-14-2010
20110178742DETECTION METHOD FOR MEMBRANE AND ELECTRODE FAILURES IN FUEL CELL STACKS - A method for determining a failure of a membrane in a fuel cell in a fuel cell stack. The method includes measuring the voltage of each fuel cell in the fuel cell stack, calculating an average cell voltage from all of the cell voltages of the fuel cells in the fuel cell stack, and identifying a minimum cell voltage from all of the cell voltages of the fuel cells in the fuel cell stack. The method then determines an absolute delta voltage value as the difference between the average cell voltage of the fuel cells and the minimum cell voltage of the fuel cells at a plurality of sample points during the sample period. A plurality of absolute delta voltage values determined over a plurality of sample periods, filtered for low current density are used to determine whether there is a membrane failure and, by filtering for high current density, to determine whether there is an electrode failure.07-21-2011
20110153239Test bed for electrical energy storage systems for vehicles - A test bed for electrical energy storage systems for vehicles, in particular for traction batteries for hybrid electric vehicles, plug-in hybrid electric vehicles, and electric vehicles is equipped with a test system (06-23-2011
20100280776Mobile Electronic Device and Method for Controlling the Same - It is possible to provide a mobile electronic device which can accurately judge the service life of a cell even when the cell is replaced. Provided is also a method for controlling the mobile electronic device. A control block (11-04-2010
20100114512SYSTEM AND METHOD FOR REMOTE MONITORING OF BATTERY CONDITION - A battery monitoring system may be configured to interface with a first battery monitoring unit and a second battery monitoring unit. The first battery monitoring unit may be configured to output data in a first format. The second battery monitoring unit may be configured to output data in a second format, the second format being different than the first format. The battery monitoring system may include a first polling agent, the first polling agent may be configured to receive data from the first battery monitoring unit and normalize the data into a predetermined data format and store the data in a database. The battery monitoring system may also include a second polling agent. The second polling agent may be configured to receive data from the second battery monitoring unit and normalize the data into the predetermined data format and store the data in a database. Furthermore, the battery monitoring system may be configured to output data associated with the condition of a respective battery unit coupled to at least the first battery monitoring unit and the second battery monitoring unit.05-06-2010
20120203484BATTERY FUEL GAUGE CIRCUIT - A detection circuit is mounted on an electronic device having a communication function, including at least a battery, a CPU, and a communication unit, and is configured to detect the remaining battery charge. An A/D converter performs sampling of a magnitude of a current I08-09-2012
20100004884SYSTEM AND METHOD FOR DETERMINING CAPACITY OF BATTERY OF ELECTRONIC DEVICE - A capacity determining system includes a measuring module, a reference module, and a calculating module. The measuring module is configured to measure current capacity of a battery of an electronic device. The reference module is configured to define standard consuming capacities of functions of the electronic device. The calculating module is configured to calculate results for performing the functions by respectively dividing the standard consuming capacities into the current capacity. A method for determining capacity of a battery of an electronic device is also provided.01-07-2010
20090259421SYSTEM AND METHOD FOR ESTIMATING REMAINING RUN-TIME OF AUTONOMOUS SYSTEMS BY INDIRECT MEASUREMENT - A system and method for estimating remaining run-time of an autonomous system by indirect measure is disclosed. In one aspect, the system includes a load circuit, an energy storage system (ESS) and an energy storage management system (ESM). The load circuit includes functional blocks. The ESS stores electric energy and is connected to the load circuit and configured to supply the varying electric current to the load circuit. The ESM is configured to estimate a remaining run-time of the autonomous system. The ESM includes an input connected to one of the functional blocks of the load circuit from which a first parameter being an indirect measure for the varying electric current supplied from the energy storage system to the load circuit is received. The ESM determines the remaining run-time from this first parameter.10-15-2009
20090248333RECHARGEABLE "SMART" BATTERY WITH CYCLE STATUS INDICATOR FOR USE IN MOBILE, HANDHELD ELECTRICAL DEVICES - An electronic battery label for displaying the status of a “smart” battery, wherein the “smart” battery comprises “smart” circuitry for determining the status of the “smart” battery, the electronic battery label comprising: 10-01-2009
20090248331Systems and Methods for Determining State of Battery Charge in a Host - A processor executes a program to calculate values of the internal resistance R of a battery and updates a database of parameters defining the dependence of internal resistance on the battery state of charge (SOC) and temperature. The database is utilized to obtain the information needed to make accurate remaining run-time calculations. The processor may also execute a program to effectuate entry of a database into memory representative of characteristics of the battery including values of measured open circuit voltages (OCV) of the battery and determinations of “starting SOC” values that correspond to the most recently measured values of OCV after the battery has stabilized. The processor may also execute programs to determine the present SOC of the battery, the present battery capacity, and the remaining run-time of the device powered by the battery.10-01-2009
20110213576METHOD FOR CALCULATING THE CHARGE STATE OF A BATTERY - In a method for ascertaining the charge state of a battery based on its open circuit voltage which may be determined using various methods, the accuracy of the charge state calculation may be optimized if the error of the open circuit voltage, which would result from applying a first and at least one additional method for open circuit voltage determination, is calculated, and the charge state is ascertained based on the particular open circuit voltage, the error of which is smaller than the error, which would result from applying another method for determining the open circuit voltage.09-01-2011
20090037124Battery status detecting method, battery status detecting apparatus, and expression deriving method - A battery status detecting method for detecting a battery status of a secondary battery that supplies power to an electrical load is disclosed. This method includes measuring a discharge current value of the secondary battery, and estimating the dischargeable capacity or the dischargeable time of the secondary battery with the measured discharge current value based on discharge characteristics of the secondary battery indicating the discharge status of the secondary battery when the voltage of the secondary battery drops to a predetermined voltage specified by the electrical load.02-05-2009
20110257916SYSTEM, METHOD, AND ARTICLE OF MANUFACTURE FOR DETERMINING AN ESTIMATED BATTERY CELL MODULE STATE - A system, a method, and an article of manufacture for determining an estimated battery cell module state indicative of a state of a battery cell module of a battery pack are provided. The method includes measuring at least one of a battery cell module voltage, a battery cell module current, and a battery cell module temperature. The method further includes determining the estimated battery cell module state of the battery cell module at a predetermined time based on an estimated battery pack state and at least one of the battery cell module voltage, the battery cell module current, and the battery cell module temperature. The method further includes storing a vector corresponding to the estimated battery cell module state in a memory.10-20-2011
20110257912APPARATUS FOR ANALYSIS AND EVALUATION OF CHARACTERISTICS OF SERIES-CONNECTED SOLAR BATTERY CELLS - An apparatus for estimating and evaluating characteristics of large-area series-connected solar battery cells from a measured current-voltage characteristic of a small-area single cell, includes an analysis model construction unit, an analysis operation unit and an evaluation unit. The construction unit reads shape parameters and material physical properties of the cells and automatically constructs a finite element method model. The operation unit obtains a current at a voltage based on the measured characteristic, sets the current as a current load, calculates potential distributions of transparent electrode and rear electrode of the cells, corrects the current load based on a difference between the distributions and the measured characteristic, recalculates the distributions based on the corrected current load, and repeats the recalculation until the distributions converge. The evaluation unit evaluates whether a converged calculation result is a pattern exhibiting a desired current-voltage characteristic of the cells.10-20-2011
20130158916BATTERY FUEL GAUGE - A system for estimating battery state of charge (SoC) includes evaluating a battery model to produce an estimated battery voltage using a previously produced SoC. Current and voltage measurements are combined with the estimated battery voltage to produce a present battery SoC. The battery model may be updated by taking battery measurements when certain conditions occur.06-20-2013
20080255783Fully-charged battery capacity detection method - In a fully-charged battery capacity detection method, first and second no-load voltages (VOCV10-16-2008
20110004428SERVICE LIFE ESTIMATION METHOD FOR LEAD STORAGE BATTERY AND POWER SOURCE SYSTEM - An estimation unit that estimates an estimated remaining service life of the lead storage battery implements: a storage step of storing an integral discharge threshold A that is a reference for determination of a service life of the lead storage battery under a standard condition with predetermined values of a surface temperature, a charge current, and a discharge current of the lead storage battery; a calculation step of calculating an integral discharged capacity B that represents an accumulated value of a discharged capacity of the lead storage battery under the actual conditions such as giving deterioration that same order as that occurring when the lead storage battery is repeatedly discharged under the standard conditions; a subtraction step of obtaining a differential electric quantity A−B by subtracting the integral discharged capacity B from the integral discharge threshold A; and an estimation step of estimating the estimated remaining service life of the lead storage battery by using the differential electric quantity.01-06-2011
20080249726SYSTEM, METHOD, AND ARTICLE OF MANUFACTURE FOR DETERMINING AN ESTIMATED COMBINED BATTERY STATE-PARAMETER VECTOR - A system, a method, and an article of manufacture for determining an estimated combined battery state-parameter vector are provided. The method determines the estimated combined battery state-parameter vector based on a plurality of predicted the combined battery state-parameter vectors, a plurality of predicted battery output vectors, and a battery output vector.10-09-2008
20080249725SYSTEM, METHOD, AND ARTICLE OF MANUFACTURE FOR DETERMINING AN ESTIMATED COMBINED BATTERY STATE-PARAMETER VECTOR - A system, a method, and an article of manufacture for determining an estimated combined battery state-parameter vector are provided. The method determines the estimated combined battery state-parameter vector based on a plurality of predicted the combined battery state-parameter vectors, a plurality of predicted battery output vectors, and a battery output vector.10-09-2008
20110054817Battery Run-Time Prediction System - Embodiments of the present disclosure include a computer implemented method and system for sampling battery runtime-related information from the batteries to provide an ongoing estimate of the remaining runtime left at a remote location based, at least in part, on a combination of computing techniques and statistical and mathematical models.03-03-2011
20110054816METHOD OF ESTIMATING THE NON-MEASURABLE CHARACTERISTICS OF AN ELECTROCHEMICAL SYSTEM - The present invention relates to a method of estimating the internal state of an electrochemical system by a zero-dimensional (0D) electrochemical mathematical model for estimating the characteristics of a battery that are not directly measurable during operation thereof. For applications relating to hybrid and electric vehicles, the most significant internal characteristics are the state of charge (SoC), the state of health (SoH) and the thermal state (T). Reconstruction of the internal characteristics is achieved using a mathematical model of the battery. The method can be used with the operation of the battery itself (real time) with a concentrated-parameter (0D) or off-line mathematical model, for calibration, an optimization or a validation of management and estimation strategies. The method allows simulation of the thermal and electrical behavior of a battery. The method according to the invention can also be useful for battery dimensioning and for optimization of the energy and thermal management strategies as a function of the desired application.03-03-2011
20110054815PROFESSIONAL DIAGNOSIS METHOD OF BATTERY PERFORMANCE ANALYSIS - The present invention discloses a professional diagnosis method of battery performance analysis, Through the overall evaluation of experiential data library, several parameters about the battery are input into the artificial neural network, outputting capacity prediction and service life prediction of each battery, etc. and giving useful advices for each battery. Therefore the result is much more in conformity with the real condition of the battery. Besides, it designs an adaptive learning function of the abovementioned artificial neural network. This invention effectively avoids the defect of evaluating the VRLA battery performance at single moment, from single perspective and by single method, and it does the real-time monitoring and evaluating for the performance of the battery during VRLA battery working period, which is easy to operate, and avoids checking discharge test to the battery so that it doesn't affect the cycle life of the VRLA battery.03-03-2011
20110257915APPARATUS FOR CALCULATING STATE OF CHARGE, METHOD OF CALCULATING STATE OF CHARGE, AND ELECTRIC SYSTEM - When the sum of a first state of charge of a first battery stack and a second state of charge of a second battery stack is large, a higher state of charge is selected as a priority state of charge. When the sum of first state of charge of the first battery stack and the second state of charge of the second battery stack is small, a lower state of charge is selected as the priority state of charge. A first coefficient and a second coefficient are set in accordance with the priority state of charge. The second coefficient is set so as to be lower than the first coefficient. The product of the first coefficient and the priority state of charge is added to the product of the second coefficient and the other state of charge, to thereby calculate a state of charge of a power storage system.10-20-2011
20100292942Embedded algorithms for vehicular batteries - Computer algorithms design to execute on a computer system embedded inside a starter or deep cycle battery that calculate optimal charge rates and detect internal alarm conditions and make this information externally available.11-18-2010
20110119005BATTERY-STATE MONITORING APPARATUS - A battery-state monitoring apparatus includes: a secondary battery 05-19-2011
20120150464AUTOMATIC DETERMINATION OF BASELINES FOR BATTERY TESTING - Baseline values for battery testing are automatically determined for individual batteries, battery cells, or networks of batteries. Impedance information is obtained from individual batteries and adjusted for operating conditions at a site of use (e.g., temperature, age, connection topology and user-entered information). Population-referenced baselines are automatically calculated from the group of individual-referenced baselines. All baselines can be continually updated and improved. SOC and SOH characteristics of batteries in the network can be automatically determined by comparison of measured impedance, and other, values to said baselines.06-14-2012
20110125434METHOD AND SYSTEM FOR ESTIMATING BATTERY PERCENTAGE - A method and a system for estimating a battery percentage are provided. The method includes the following steps. A coulomb counter calculated battery index (CCBI) relating to an accumulated amount of current flowing out of a battery is obtained. A battery voltage curve tracer calculated battery index (VCBI) relating to a temperature, an output voltage of the battery, and a current flowing out of the battery is obtained. A modified calculated battery index (MCBI) ranging between the CCBI and the VCBI is generated according to the CCBI and the VCBI.05-26-2011
20110125433BATTERY MANAGEMENT SYSTEM - Control apparatus for operating a rechargeable energy storage device and for collecting operating data, as well as a method for operating such a control apparatus. The invention is described with reference to the use in a motor vehicle and to the control of the rechargeable energy storage device thereof for the supply of the electric drive of the motor vehicle. However, it should be noted that an apparatus having the features of the claims can operate rechargeable energy storage devices also independently of motor vehicles, or in stationary use.05-26-2011
20100324846METHOD AND SYSTEM FOR ESTIMATING BATTERY LIFE - Methods and systems for estimating remaining life of an automotive propulsion battery are provided. A total usable capacity of the battery is calculated based on cycling the battery. A first component of degradation is calculated based on driving throughput of the battery. A second component of degradation is calculated based on aging of the battery. The total degradation is calculated based on the sum of the first component and the second component of degradation.12-23-2010
20100324847BATTERY GAS-GAUGE CIRCUIT AND METHOD THEREOF - A battery gas-gauge circuit and method thereof are provided. The battery gas-gauge circuit includes a sensing resistor, a voltage-to-current conversion circuit, a subtractor, a comparator, a logic circuit and a power-management unit. In the voltage-to-current conversion circuit, two conversion circuits thereof obtain two voltage signals according to the two ends of the sensing resistor, respectively, and convert the two voltage signals to two current signals correspondingly. The subtractor generates a current difference signal according to the two current signals. The comparator outputs a comparison signal according to the current difference signal and a current dead-band. The logic circuit outputs a logic signal according to the comparison signal and a predetermined signal. The power-management unit determines battery power according to the logic signal.12-23-2010
20100324848APPARATUS AND METHOD FOR TESTING STATE OF CHARGE IN BATTERY - Disclosed is an apparatus and method for estimating a state of charge (SOC) in a battery, in which the battery SOC is estimated using a fusion type soft computing algorithm, thereby accurately estimating the battery SOC in a high C-rate environment. The apparatus includes a detector unit for detecting current, voltage and temperature of a battery cell; and soft computing unit for outputting a battery SOC estimation value of processing the current, the voltage and the temperature detected by the detector unit using a radial function based on a neural network algorithm. Especially, the soft computing unit combines the neural network algorithm with any one of a fuzzy algorithm, a genetic algorithm (GA), a cellular automata (CA) algorithm, an immune system algorithm, and a rough-set algorithm, and thereby adaptively updates the parameters of the neural network algorithm.12-23-2010
20110257914Charged state estimating device and charged state estimating method of secondary battery - When a battery current is not larger than a limit current set depending on the battery temperature and is flowing continuously for a predetermined time set depending on the battery temperature or longer, a decision is made that a secondary battery is in stable state. When the secondary battery is in stabilized state, the battery voltage is considered to be equal to the open circuit voltage and SOC estimation is performed based on the open circuit voltage-SOC characteristics. When the product of the internal resistance of the secondary battery and the limit current is made substantially constant (constant voltage) by setting the limit current in association with temperature dependence of the internal resistance, estimation error can be kept within a predetermined range in the stabilized state even if SOC estimation is performed while the battery voltage is assumed as the open circuit voltage. Consequently, SOC can be estimated with high precision within a predetermined error by a simple and reliable system under stabilized state.10-20-2011
20090171600Battery State Judging Method, And Battery State Judging Device - A battery state judging method is provided capable of properly judging a state of a lead-acid battery by measuring voltages without measuring currents. A state of the battery is judged by obtaining, in advance, a DC internal resistance r07-02-2009
20090171601BATTERY DETECTION DEVICE AND METHOD THEREOF - A battery detection device for detection battery voltage of a device is provided. The device includes a voltage dividing circuit configured to provide an output voltage in proportion to the battery voltage, and a detection unit which includes a voltage detection module, a comparison module, a control module and a state detection module configured to obtain the device's state. The voltage detection module produces a digital detection voltage according to the output voltage every normal time interval initially, the comparison module detects whether the digital detection voltage is lower than a reference voltage corresponding to the state. If yes, the voltage detection module obtains digital detection voltage for predetermined times of abnormal time interval. The comparison module compares the digital detection voltage with the reference voltage to produce comparison results. The control module determines whether to maintain the device's state according to the comparison results.07-02-2009
20090171598Battery Pack, Electronic Appliance, And Method of Detecting Remaining Amount of Battery - A battery pack has a charge and discharge count measuring part (07-02-2009
20100121587Health Management of Rechargeable Batteries - Systems and methods for health management of rechargeable batteries are disclosed. In one embodiment, a rechargeable battery system includes a rechargeable battery, and a battery health management unit operatively coupled to the rechargeable battery and including a state of health module configured to estimate a battery health by receiving battery-related data and predicting one or more failure modes. The state of health module may further include a prognostic failure mode component configured to combine at least one flight data variable with at least one model-based prognostic. In alternate embodiments, the battery health management unit may further include a state of life module and a state of charge module.05-13-2010
20100174501Method, Apparatus And Computer Program For Conserving Battery Charge - A method comprising determining a remaining electrical charge in a battery of a apparatus using a charge conserving system of the apparatus. The apparatus includes a plurality of hardware and/or software components. The charge conserving system is capable of defining one or a number of charge thresholds. The or each charge threshold corresponds to a quantity of remaining electrical charge in the battery. The method also includes broadcasting a charge status notification, using the charge conserving system, to at least one of a predefined group of the hardware and/or software components when the remaining electrical charge in the battery falls below the or each charge threshold.07-08-2010
20100174500METHOD FOR CALCULATING POWER CAPABILITY OF BATTERY PACKS USING ADVANCED CELL MODEL PREDICTIVE TECHNIQUES - The present invention relates to a method and an apparatus for estimating discharge and charge power of battery applications, including battery packs used in Hybrid Electric Vehicles (HEV) and Electric Vehicles (EV). One charge/discharge power estimating method incorporates voltage, state-of-charge (SOC), power, and current design constraints and works for a user-specified prediction time horizon Δt. At least two cell models are used in calculating maximum charge/discharge power based on voltage limits. The first is a simple cell model that uses a Taylor-series expansion to linearize the equation involved. The second is a more complex and accurate model that models cell dynamics in discrete-time state-space form. The cell model can incorporate a inputs such as temperature, resistance, capacity, etc. One advantage of using model-based approach is that the same model may be used in both Kalman-filtering to produce the SOC and the estimation of maximum charge/discharge current based on voltage limits.07-08-2010
20100121591METHOD AND APPARATUS THAT DETECTS STATE OF CHARGE (SOC) OF A BATTERY - A method and apparatus for estimating a state of charge of a battery. The method may include generating one or more curves which expresses the a priori relationship between a first parameter and a state of charge (SOC) of a battery over a region of interest, taking a derivative of the generated one or more curves with respect to state of charge to generate a derived parameter with the SOC of the battery over the region of interest, transforming a combination of the generated one or more curves into one or more supplemental curves which express the a priori relationship between a second parameter with one or more of current (I) polarization current (Ip) and open circuit voltage (OCV), the voltage slope with respect to SOC (dOCV/dSOC), and any combination of (I, Ip, OCV and dOCV/dSOC), measuring a voltage and a current of the battery during a period of time to create a set of voltage and current data, processing the set of voltage and current data to create a set of processed data, combining one or more generated curves with the processed data to generate processed data as a function of SOC, regressing the process data function at multiple SOCs over the region of interest with respect to an equation which is representative of the battery to obtain values for parameters not associated with SOC and to generate a curve that evaluates each SOC for accuracy and chance likelihood of fit, selecting the SOC that minimizes both the error and chance occurrence, and outputting the selected SOC for display to the user on a user interface.05-13-2010
20100121590TRAVEL SUPPORT SYSTEM, METHOD, AND PROGRAM - A travel support system for a vehicle includes: a required power amount obtaining unit determining a required power amount in a rechargeable battery required for travel of a predetermined section of a route; a remaining power amount obtaining unit determining a remaining power amount as the amount of power currently remaining in the rechargeable battery; an excess power amount obtaining unit determining an excess power amount as a portion of the remaining power amount in the rechargeable battery in excess of the required power amount; and a communication unit notifying a user of the vehicle of information indicating the availability of an electrical component of the vehicle in traveling the predetermined section, based on the excess power amount.05-13-2010
20120310568Monitoring Battery State of Charge - Systems and methods for monitoring a state of charge of a battery are disclosed. An updated state of charge of the battery may be determined based on a measured terminal voltage of the battery, a measured current of the battery, and a value of at least one battery parameter selected from a plurality of values based on a prior state of charge of the battery.12-06-2012
20120310566CALCULATION METHOD, CALCULATION SYSTEM, AND CALCULATION APPARATUS - A calculation method causing a calculation apparatus configured to calculate a voltage of a battery to implement a computation capability includes: referring to a detection value database configured to store a charge amount of a battery and a voltage of the battery, the voltage being generated when the battery is charged, while associating the charge amount of the battery with the voltage of the battery, and a function information database configured to store a function representing a relationship between the voltage and a charge amount of each of a plurality of active materials included in the battery; and performing a regression calculation on the voltage of the battery that is stored in the detection value database, with an amount of the active materials of the function stored in the function information database being set as a variable.12-06-2012
20120310565APPARATUS AND METHOD FOR DETERMINING BATTERY/CELL'S PERFORMANCE, AGE, AND HEALTH - A self-energized measuring system for determining primary and secondary battery/cell's performance, age, and health by measuring and recording battery/cell's voltage response to a specified load-changing perturbation spot-test event. The cell's voltage response is compared to a synchronously measured voltage signal of a comparator resistor. The relationship between the two voltage signals is analyzed on logarithmic time scale to determine performance parameters such as cell impedance and power and their variation in the time domain. The cell temperature is also measured for impedance and power normalization for 20 centigrade. Results are compared to a previously generated master data tabulation characteristic of a similar, new cell of perfect health condition. The time-domain performance parameters are related to the performance, age and health of the cell at any particular instant. The evaluation method can be easily adjusted to various battery chemistries, types.12-06-2012
20120310562BATTERY MONITORING CIRCUIT, APPARATUS AND METHOD - Various aspects of the present disclosure are directed to monitoring battery cells. In accordance with various embodiments, a battery pack having a plurality of battery cells connected in series is monitored. Current is separately injected into individual ones of the plurality of battery cells, such as by operating a balancing circuit coupled across an individual cell, to inject current (e.g., positive or negative) into the cell. For each of the battery cells, an output is provided to indicate cell voltage of the battery cell responsive to the current injected therein. An output indicative of current through each of the battery cells is provided as well. From the respective outputs as corresponding to each individual cell, amplitude and phase characteristics of the current and voltage outputs for each of the cells are extracted to provide an indication of an impedance characteristic of the cell(s).12-06-2012
20090292487BATTERY DETECTION AND USER EXPERIENCE - A method and medium are provided for enabling reliable indication of the amount of time a battery will provide sufficient charge to power a computing device. In one embodiment, the time interval that lapses from the charge draining from the battery between two thresholds is determined, and the thresholds are adjusted based on the time interval. Other embodiments provide for classifying a battery as no longer capable of maintaining sufficient charge by comparing the maximum amount of charge the battery could store to the current maximum amount of charge the battery can currently store. Another embodiment determines how long a battery will provide sufficient charge to power a computing device based on profiles of user activity and associated battery drain rates. The current amount of charge stored in the battery is divided by the profile drain rate to determine how long the battery will provide sufficient charge to power the computing device.11-26-2009
20100030498SECONDARY BATTERY DETERIORATION JUDGING DEVICE AND BACKUP POWER SUPPLY - A secondary battery deterioration judging device is provided with an overdischarge detecting section for detecting the overdischarge of a secondary battery, the deterioration of which is to be judged, a computing section for integrating a value indicating the deterioration of the secondary battery while the overdischarge is detected by the overdischarge detecting section, and a judging section for judging a deterioration state of the secondary battery based on an integration value obtained by the computing section.02-04-2010
20100023285APPARATUS AND METHOD FOR DETECTING CHARGED STATE OF ELECTRIC STORAGE DEVICE - Provided is an apparatus for detecting state of charge (SOC) of a battery. A voltage of a battery pack (01-28-2010
20100017154Battery Monitoring and Protecting Device - A battery monitoring and protecting device is disclosed. The device includes a voltage detector, an analog-to-digital converter, a controller and a communication interface. Also, the device has an ID code, by which whether the device is actuated can be determined. The data stored in the device can be sent out to communicate with an external unit at next timing phase if the device is actuated. This can prevent from interference or collision with each other when multiple devices are connected in parallel or series.01-21-2010
20110153241SEMICONDUCTOR INTEGRATED CIRCUIT - A semiconductor integrated circuit includes a central processing unit 06-23-2011
20110307202SYSTEM FOR MONITORING THE STATE OF A BATTERY - The invention is a monitoring system for a battery having a plurality of accumulators. The system comprises means for measuring the voltage on the terminals of each accumulator, means for measuring the temperature of the battery, means for measuring the current flowing through the battery, means for calculating a voltage difference between a maximum voltage measured on the terminals of one of the accumulators and a minimum voltage measured on the terminals of one of the accumulators, means for comparing the voltage difference with at least one threshold value depending on the measured temperature and current, and means reporting an error if the voltage difference is greater than or equal to said at least one threshold value.12-15-2011
20110307201BATTERY CAPACITY DISPLAY FOR A POWER TOOL - The present invention discloses a battery capacity display circuit for a power tool. The battery capacity display circuit has a first circuit module arranged in the battery pack of the power tool for detecting and displaying the battery capacity and a second circuit module arranged in the power tool for displaying the battery capacity. The battery capacity display also has an optical signal transmitting device and an optical signal receiving device to communicate with the first circuit module and the second circuit module.12-15-2011
20100036626APPARATUS AND METHOD FOR ESTIMATING STATE OF HEALTH OF BATTERY BASED ON BATTERY VOLTAGE VARIATION PATTERN - An apparatus estimates SOH of a battery based on a battery voltage variation pattern. A data storing unit obtains and stores battery voltage, current and temperature data from sensors, at each SOH estimation. A first SOC estimating unit estimates first SOC by current integration using the battery current data. A second SOC estimating unit estimates open-circuit voltage from the voltage variation pattern, and calculates and stores second SOC corresponding to the open-circuit voltage and temperature using correlations between the open-circuit voltage/temperature and SOC. A weighted mean convergence calculating unit calculates and stores convergence value for weighted mean value of ratio of the second SOC variation to the first SOC variation. A SOH estimating unit estimates capacity corresponding to the weighted mean convergence value using correlation between the weighted mean convergence value and the capacity, estimates relative ratio of the estimated capacity to an initial capacity, and stores it as SOH.02-11-2010
20080243405METHOD AND DEVICE FOR ESTIMATING BATTERY RESIDUAL CAPACITY, AND BATTERY POWER SUPPLY SYSTEM - In the method for estimating battery residual capacity of the present invention, the voltage measurement values are obtained (step S10-02-2008
20110112782BATTERY STATUS DETECTION DEVICE - A battery status detection device for detecting the status of a secondary battery 05-12-2011
20120041698METHOD AND SYSTEM FOR OPERATING A BATTERY IN A SELECTED APPLICATION - A method of the present invention using a prediction process including a battery equivalent circuit model used to predict a voltage and a state of charge of a battery. The equivalent circuit battery model includes different equivalent circuit models consisting of at least an ideal DC power source, internal resistance, and an arbitrary number of representative parallel resistors and capacitors. These parameters are obtained a priori by fitting the equivalent circuit model to battery testing data. The present invention further uses a correction process includes determining a corrected predicted state of charge of the battery; and storing the corrected state of charge of the battery in a storage medium. In the present invention, an expectation of the predicted voltage of the battery and an expectation of the predicted state of charge of the battery are obtained by an unscented transform with sigma points selected by a Gaussian process optimization.02-16-2012
20120150465ELECTRONIC DEVICE, BATTERY PACK, AND METHOD OF COMPUTING BATTERY PACK CAPACITY - An electronic device includes a battery capacity computing unit configured to compute the current full-charge capacity of a currently inserted battery apparatus having secondary cells. The battery capacity computing unit acquires at least information on the full-charge capacity of the battery apparatus in a brand-new state and information on the battery charge/discharge cycle count from the battery apparatus, retains a correction coefficient used when computing the current full-charge capacity of the battery apparatus, and calculates the current full-charge capacity of the battery apparatus using the information on the full-charge capacity of the battery apparatus in a brand-new state, the information on the battery charge/discharge cycle count, and the correction coefficient.06-14-2012
20120041697ELECTRONIC BATTERY TESTER FOR TESTING STORAGE BATTERY - An electronic battery tester, includes test circuitry configured to couple to a battery and measure a parameter of the battery. A manual input is configured to receive an input from an operator. A user output provides an output to the operator. A memory contains programming code, which includes code to output battery test procedure instructions for implementation by the operator. A microprocessor operates in accordance with the programming code to instruct the operator to perform the battery test procedure. The microprocessor further performs a battery test based upon the measured parameter.02-16-2012
20120046893BATTERY VOLTAGE MONITORING DEVICE - A battery controller 02-23-2012
20120046894Method and System for Minimizing the Accumulated Offset Error for an Analog to Digital Converter - A method and system utilized with an analog to digital converter is disclosed. The method and system comprise providing a first conversion on an input signal. In the first conversion, an offset error is added to the input signal to provide a first result. The method and system further includes providing a second conversion on the input signal. In the second conversion, an offset error is subtracted from the input signal to provide a second result. The first and second results are then combined to substantially remove the offset error. A system and method in accordance with the present invention compensates for the accumulated offset error over many samples, thereby achieving much higher accuracy in the offset error compensation.02-23-2012
20120046892DETERMINATION OF THE INTERNAL RESISTANCE OF A BATTERY CELL OF A TRACTION BATTERY WHILE USING INDUCTIVE CELL BALANCING - The invention relates to a method and a device for determining the internal resistance of a battery cell of a battery, in particular a traction battery, in which an inductive cell balancing for balancing the charging states of the battery cells is carried out, whereby the charge removed from or supplied to a battery cell is determined by a determination of the current flowing during the removal or supply of the charge. According to the invention, a first control module is provided for determining a first voltage applied to the battery cell and a first current flowing from or to the battery cell at a first time during removal or supply of the charge and for determining a second voltage applied to the battery cell and a second current flowing from or to the battery cell at a second time during removal or supply of the charge. Further provided is a calculating unit for calculating the internal resistance of the battery cell on the basis of the quotients of the difference of the second voltage and the first voltage and the difference of the second current and the first current.02-23-2012
20120004875METHOD OF DETECTING BATTERY INTERNAL RESISTANCE - The method of detecting battery internal resistance detects battery 01-05-2012
20120004874MAXIMUM POWER POINT TRACKING DEVICE FOR A SOLAR ELECTRIC GENERATION SYSTEM AND A TRACKING METHOD FOR THE SAME - A maximum-power-point tracking device is provided for a solar electric-generation system that includes a solar battery and a DC/DC converter connected to the solar battery. The device includes a sampling module configured to detect output current and voltage values of the solar battery. A controlling module is configured to calculate a target current value according to the output current and voltage values and a preset current value, and output a controlling signal for controlling the value of a current according to the output current of the solar battery and the target current value. The device also includes a driving module configured to receive the controlling signal from the controlling module and output a driving signal to adjust a output current value of the DC/DC converter to close to the target current value and adjust an output power of the DC/DC converter.01-05-2012
20120004873BATTERY MANAGEMENT SYSTEMS FOR PROTECTING BATTERIES FROM FAULT CONDITIONS - A battery management system for a battery pack that includes multiple battery cells is disclosed. The battery management system includes a detector coupled to the battery cells, multiple temperature sensors coupled to the battery cells, a current sensor coupled to the battery cells in series, and a processor coupled to the current sensor. The detector generates first monitoring signals corresponding to cell voltages across the battery cells. The temperature sensors generate second monitoring signals corresponding to temperatures of the battery cells. The current sensor generates third monitoring signals corresponding to currents of the battery cells. The processor determines whether an undesired condition is present according to the first, second, and third monitoring signals.01-05-2012
20120116700Battery-capacity supervisory control device and method thereof - A battery-capacity supervisory control device includes a DC current/DC voltage detecting loop, a microprocessor and a display unit. The DC current/DC voltage detecting loop is connected between a battery and a power inverter for detecting a first voltage value before the battery electrically discharges, and a second voltage value as well as an output current value of the battery after electrically discharging for a time unit of the battery, to calculate the available capacity of the battery and to calculate the available time of the battery under loading according to the available capacity of the battery through the microprocessor. The display simultaneously displays the available time of the battery under loading and the available capacity of the battery. Therefore, a user effectively supervises and assures the battery is in the usable state.05-10-2012
20100036627APPARATUS AND METHOD FOR DETERMINATION OF THE STATE-OF-CHARGE OF A BATTERY WHEN THE BATTERY IS NOT IN EQUILIBRIUM - The invention relates to a method and an apparatus, like a charger for determining the state-of-charge of a battery which has been charged or discharged and which has not reached its equilibrium state, the method comprising the steps of determining the EMF of the battery by extrapolation of the battery voltage sampled during relaxation after the charge or the discharge process, wherein the extrapolation is based on a model using only variables sampled during the relaxation process and deriving the state-of-charge from the EMF of the battery by using a predetermined relation between the EMF and the state-of-charge. This method is a voltage-prediction method without the need to store parameters beforehand. Instead, the voltage relaxation end value is determined based on the measured first part of a voltage relaxation curve and mathematical optimisation/fitting of a function to this measured part of the relaxation curve.02-11-2010
20110166810System And Method For Determining An Expected Vehicle Drive Range - A vehicle may include one or more controllers configured to determine a remaining energy of the vehicle's battery, to determine a series of energy consumption rates of the vehicle, and to select a set of energy consumption rates from the series. The one or more controllers may be further configured to determine an expected drive range for the vehicle based on the remaining energy and the selected set of energy consumption rates.07-07-2011
20110166811METHOD AND SYSTEM FOR DETERMINING A STATE OF CHARGE OF A BATTERY - Methods and systems are provided for determining a state of charge of a battery. The battery is subjected to a predetermined magnetic field such that the battery and the predetermined magnetic field jointly create a resultant magnetic field. The resultant magnetic field is sensed. The state of charge of the battery is determined based on the resultant magnetic field.07-07-2011
20100076705METHOD AND SYSTEM FOR DETERMINING A STATE OF CHARGE OF A BATTERY BASED ON A TRANSIENT RESPONSE - Methods and systems for determining a state of charge of a battery exhibiting a transient response are provided. At least one property of the battery is measured. The state of charge of the battery is determined based on the at least one measured property and a transient response of the battery.03-25-2010
20120065909TIME DAMPENED CHARGING INDICATOR - Systems and methods to determine a power pack charging state. A difference between a first power pack capacity of a power pack at a first time and a second power pack capacity of the power pack at a second time is estimated, where the second time is a time duration after the first time. A determination is made that the charging state is “not charging” if the power pack capacity decreases between the two times. A determination is made that the charging state is “charging” if the power pack capacity increases between the two times. If a change in power pack capacity is not observed between the two times, the power pack charging state of the previous determination is used. Various techniques are used to determine the difference in power pack charging state.03-15-2012
20120116701METHOD AND DEVICE FOR DIAGNOSING SECONDARY BATTERY DEGRADATION - During charging of a secondary battery, a rate of voltage change dV/dt is obtained when a voltage V of the secondary battery reaches a predetermined voltage V05-10-2012
20120016609IN-VEHICLE BATTERY MONITOR - An apparatus and a method of monitoring a battery in an automotive vehicle are provided. An output is provided which can be a relative output as a function of minimum and maximum parameters of the battery.01-19-2012
20100198536BATTERY HEALTH ASSESSMENT ESTIMATOR - A battery state of health estimator and similar method, system and computer product is disclosed providing for a estimate of a state of health (SOH) of one or more batteries, comprising, estimating a sampling of internal resistances of the one or more batteries, generating a time history of the internal resistance over a predetermined amount of time, generating a cumulative internal resistance histogram from the time history, calculated a final estimate of internal resistance of said one or more batteries which represents the calculated SOH of said one or more batteries and comparing the calculated SOH to a predetermined critical resistance threshold. If the calculated SOH is less than the predetermined critical resistance threshold, the battery is in no worse than a “Blue Monday” condition, and if the calculated SOH is greater than the critical resistance threshold, then the one or more batteries has failed.08-05-2010
20120022817Measuring and Monitoring a Power Source - The disclosed battery monitoring systems and methods may minimize measurement errors due to noise and/or other disruptions. The sensor may generate a pulse width modulated signal that when applied to the battery forms an AC test signal having a defined waveform, frequency, amplitude, and/or duration. The sensor may measure the battery's response to the test signal. The resultant response signal may be measured to determine the health of the battery, including its internal admittance. The sensor may determine an optimum frequency to test the battery by scanning a frequency range and measuring the amount of noise present.01-26-2012
20120022818AGGREGATING MOBILE DEVICE BATTERY LIFE DATA - Battery life data may be collected from a number of mobile devices. The battery life data for each of the mobile devices may be correlated with one or more characteristics of each of the mobile devices. The battery life data for the mobile devices may be aggregated based on at least one of the one or more characteristics. In some examples, a report of the aggregated battery life data for the mobile devices including at least one common characteristic is generated.01-26-2012
20120116699ANALYZING AND CONTROLLING PERFORMANCE IN A COMPOSITE BATTERY MODULE - A method for performance analysis and use management of a battery module is disclosed, wherein the battery module includes a multitude of interconnected battery cells and a battery management system with a plurality of dedicated analysis/control units (ACUs) that analyze performance of the battery module, the ACUs being assigned to individual battery cells and/or battery blocks of battery module. The method includes measuring current and voltage of one or more of an individual battery cell and a battery block; calculating a charge removal from the one or more of the individual battery cell and the battery block; calculating a loading charge of the one or more of the individual battery cell and the battery block; determining the remaining charge of the one or more of the individual battery cell and the battery block; and failure monitoring of the one or more of the individual battery cell and the battery block.05-10-2012
20100070220Battery Charge Indication Methods, Battery Charge Monitoring Devices, Rechargeable Batteries, and Articles of Manufacture - Battery charge indication methods, battery state of charge monitoring devices, rechargeable batteries, and articles of manufacture are described. According to one aspect, a battery charge indication method includes first determining a state of charge of a battery at a first moment in time using a first method, second determining a state of charge of the battery at a second moment in time using a second method different than the first method, and providing information regarding the state of charge of the battery at the first and second moments in time using information of the first and second determinings.03-18-2010
20120158330MONITORING SYSTEM FOR LITHIUM ION SECONDARY BATTERY AND MONITORING METHOD THEREOF - A monitoring system for a lithium ion secondary battery which detects deterioration of the lithium ion secondary battery accurately is provided. The monitoring system for a lithium ion secondary battery (06-21-2012
20120209551STATE ESTIMATION METHOD AND STATE ESTIMATION APPARATUS OF ELECTRIC STORAGE ELEMENT - A method includes the steps of calculating the temperature of a reference point in an electric storage element by using a detected temperature by a temperature sensor attached to an outer face of the electric storage element and a heat conduction equation, and estimating the internal state of the electric storage element by using the calculated temperature of the reference point. The reference point is a lattice point at which a temperature associated with the internal resistance of the electric storage element is shown, out of a plurality of lattice points provided in the electric storage element.08-16-2012
20120209550PERFORMANCE MONITORING OF INDIVIDUAL HYDROCYCLONES USING SONAR- BASED SLURRY FLOW MEASUREMENT - Apparatus, including a signal processor, featuring at least one module configured to respond to signals containing information about sound propagating through a slurry flowing in part, including overflow pipes, of cyclones operating in parallel on a cyclone battery, and determine the performance of individual cyclones based at least partly on the information contained in the signals. The signal process may form part of a non-invasive acoustic-based passive monitoring system, comprising: cyclones and sensors; where the cyclones are configured in parallel to form a cyclone battery in order to process a slurry, each cyclone having an overflow pipe for providing some portion of the slurry flowing in the cyclone battery, where each sensor is configured to mount on a respective overflow pipe of a respective cyclone, to respond to sound propagating through the slurry flowing in the respective overflow pipe of the respective cyclone, and to provide a respective signal containing information about the sound propagating through the slurry flowing in the respective overflow pipe of the respective cyclone; and where the signal processor is configured to respond to respective signals from the sensors and determine the performance of individual cyclones based at least partly on the information contained in the respective signals.08-16-2012
20110071781BATTERY SYSTEM - A battery system comprises a first battery cell and a first management unit which is connected in one-to-one correspondence to the first battery cell. The first management unit comprises a first parameter acquiring unit, a first calculating unit, and a first storage unit. The first parameter acquiring unit acquires a power consumption parameter of the first battery cell. The first calculating unit calculates a power consumption state value of the first battery cell on the basis of the power consumption parameter acquired by the first parameter acquiring unit. The first storage unit stores the power consumption state value calculated by the first calculating unit.03-24-2011
20110071780METHOD AND APPARATUS FOR DISPLAYING AT LEAST ONE INDICATOR RELATED TO A PROJECTED BATTERY LIFESPAN - In accordance with an example embodiment of the present invention, the apparatus comprises at least one processor and at least one memory including computer program code. The at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the following determine an estimated battery usage for one or more activities. Further, a user interface is configured to display at least one indicator related to a projected battery lifespan based at least in part on the estimated battery usage of the one or more activities.03-24-2011
20120072146METHOD AND APPARATUS FOR DETECTING STATE OF CHARGE OF BATTERY - A method for detecting a state of charge (SOC) of a battery is disclosed. The method includes inputting a pulse to the battery for receiving a response curve of the battery associated with the pulse inputted to the battery, determining a set of parameters for preparing a simulated curve, comparing a difference between the response curve and the simulated curve, determining whether the difference between the simulated curve and the response curve is less than a predetermined threshold before further utilizing the parameters to determine the SOC from a corresponding relationship.03-22-2012
20120072145Method and Apparatus for Estimating Battery Capacity of a Battery - A method is provided for determining a battery capacity for a vehicle battery. Open circuit voltages of a vehicle battery are measured during ignition startups. A battery parameter is estimated for the vehicle battery that is a function of a present open circuit voltage measurement for a present ignition startup, a function of at least one open circuit voltage observation of a previous ignition startup, a function of a current draw integration over a time period from a previous ignition startup event to a present ignition startup event, and a function of an adjustment factor. A battery parameter is determined based on a new battery. The battery capacity is calculated as function of the battery parameter for the vehicle battery and the battery parameter for the new battery.03-22-2012
20120072144METHOD AND APPARATUS FOR ESTIMATING SOC OF A BATTERY - A method of determining a state-of-charge for a battery is provided. A startup state-of-charge of the battery is determined as a function of a present open circuit voltage measurement for a present ignition startup, at least one open circuit voltage observation of a previous ignition startup, and a current draw integration over a time period from a previous ignition startup event to a present ignition startup event. A run state-of-charge change of the battery is determined for an ignition key-on operation. The run state-of-charge change comprises a difference between the present open circuit voltage measurement and the at least one previous open circuit voltage observation, and is determined in response to of a current draw integration over a respective period of time. The state-of-charge of the battery is calculated based on a function of the startup state-of-charge and the run state-of-charge change of the battery.03-22-2012
20100121588Apparatus, system, and method for improving the accuracy of state of health/state of charge battery measurements using data accumulation - A method, system, and computer network for improving the accuracy of state of health/state of charge calculations of a battery product utilizing a battery tracking network communicating with a battery product, providing for the collection and recording of data from the operational environment of the battery product. Transmitting the collected and recorded data from all battery products in the battery tracking network through the battery tracking network to a database system. Storing the data in the database system. Calculating, using a state of charge/state of health algorithm, an estimated state of charge/state of health and comparing the accuracy of the calculation to the data collected. Then adjusting the state of health/state of charge algorithm based on the comparison with the collected data to improve the accuracy of the state of health/state of charge algorithm. The algorithm being adjusted and transmitted to the battery product to aid in calculating and displaying a state of health/state of charge of the battery product based on the adjusted state of health/state of charge algorithm for review by an operator.05-13-2010
20110077880SYSTEMS, METHODS AND COMPUTER READABLE MEDIA FOR ESTIMATING CAPACITY LOSS IN RECHARGEABLE ELECTROCHEMICAL CELL - A system includes an electrochemical cell, monitoring hardware, and a computing system. The monitoring hardware periodically samples charge characteristics of the electrochemical cell. The computing system periodically determines cell information from the charge characteristics of the electrochemical cell. The computing system also periodically adds a first degradation characteristic from the cell information to a first sigmoid expression, periodically adds a second degradation characteristic from the cell information to a second sigmoid expression and combines the first sigmoid expression and the second sigmoid expression to develop or augment a multiple sigmoid model (MSM) of the electrochemical cell. The MSM may be used to estimate a capacity loss of the electrochemical cell at a desired point in time and analyze other characteristics of the electrochemical cell. The first and second degradation characteristics may be loss of active host sites and loss of free lithium for Li-ion cells.03-31-2011
20120123712DETERMINING REMAINING LIFE FRACTION FOR BATTERY NETWORKS IN-SITU - Determination of a remaining life fraction for a network of batteries during use in an electrical circuit is disclosed. A state of health of the battery network can be determined by measuring a change in impedance characteristics of the individual battery units and/or the battery network as a whole. More specifically, a mode and a severity of a failure can be determined for individual battery units.05-17-2012
20110029265METHOD AND DEVICE FOR PREDICTING A RECHARGEABLE BATTERY'S LIFETIME - A method is disclosed for determining an end of life for a rechargeable battery comprising the steps of using the battery (02-03-2011
20120316812BATTERY STATE ESTIMATION DEVICE AND BATTERY STATE ESTIMATION METHOD - An object of the present invention is to provide a battery state estimation device and a battery state estimation method which identify parameter of a secondary battery with high accuracy. A current and a terminal voltage of secondary battery are detected, then by using the current measured value and terminal voltage measured value thus detected, the terminal voltage of secondary battery based on predetermined battery model is estimated, and the parameter of the secondary battery is identified such that a difference between terminal voltage measured value and voltage estimated value is converged to zero. In the identifying of parameter of secondary battery, the terminal voltage measured value and terminal voltage estimated value are subjected to filter treatment by low pass filter having a common high frequency breaking characteristic and the terminal voltage measured value and terminal voltage estimated value subjected to the filter treatment are used.12-13-2012
20120316811APPARATUS AND METHOD FOR DETERMINING A REMAINING BATTERY LIFE OF A PORTABLE TERMINAL - An apparatus and method for determining a remaining battery life of a portable terminal are provided, in which a battery checker checks the remaining battery life, upon input of a power key is being input during a power-off state of the portable terminal, and a controller for checking and displaying of the remaining battery life during the power-off state of the portable terminal.12-13-2012
20090132186METHOD AND SYSTEM FOR REPORTING BATTERY STATUS BASED ON CURRENT ESTIMATION - A charge stored in a battery is estimated by multiplying estimated charge currents supplied during charge phases and estimated discharge currents discharged during operational modes by the respective amounts of time of charging and discharge. The state of charge of the battery is calculated from the estimated stored charge. Furthermore, parameters of the battery may be measured to be used to adjust the estimated state of charge of the battery. In a first case, the estimated stored charge may be adjusted to a charge value corresponding to the detected completion of a constant current charge phase. In a second case, the estimated stored charge may be adjusted to a charge value corresponding to the detected completion of a constant voltage charge phase. In a third case, the estimated stored charge may be adjusted to a charge value corresponding to a detected predetermined discharge level of the battery.05-21-2009
20100250164Battery End of Life Determination - A method for determining an end of life of a battery includes determining a discharge capacity of the battery at a given moment in time, determining a discharge capacity at a functional endpoint of the battery, and determining a fuel remaining in the battery at the given moment in time as a function of both the discharge capacity at the given moment in time and the discharge capacity of the battery at the functional endpoint of the battery. The determined fuel remaining is indicative of an end of life of the battery.09-30-2010
20100250162BATTERY LIFE ESTIMATION - A method of estimating battery lifetime includes monitoring a charge characteristic of a battery during a first time period, monitoring an operating condition of the battery, determining a first battery life value for the first time period based on the operating condition of the battery, the charge characteristic, and a duration of the first time period, determining an overall battery life value using the first battery life value and a second battery life value for a second time period, and estimating a remaining battery lifetime for the battery based on the overall battery life value.09-30-2010
20120221267ESTIMATION APPARATUS AND ESTIMATION METHOD - An estimation apparatus has a controller which estimates an internal reaction of a secondary battery. The controller calculates a voltage drop amount due to an internal resistance of the secondary battery by using an expression (I):08-30-2012
20120221266TEST SYSTEM AND METHOD OF TESTING BATTERY PACK - A test system to test a battery pack includes a power supply, a high-frequency-voltage application unit, a splitter, a first coupling capacitor, a second coupling capacitor, a ground, and a data logger. The power supply supplies power to a battery management unit of the battery pack. The splitter includes an input terminal, and first and second output terminals. The high-frequency-voltage application unit outputs a high-frequency voltage to the input terminal of the splitter. The first coupling capacitor is provided between the first output terminal and a positive-electrode terminal of the battery pack. The second coupling capacitor is provided between the second output terminal and a negative-electrode terminal of the battery pack. An earth terminal of the high-frequency-voltage application unit and one of power-supply input terminal of the battery pack are connected to the ground. The data logger records data outputted from a data-output terminal of the battery management unit.08-30-2012
20120130661BATTERY MONITORING DEVICE AND BATTERY MONITORING METHOD - A battery monitoring device includes a detecting unit which detects a voltage value, a current value and a temperature of a secondary battery, a charging time computing unit which computes a charging time of the battery by using the voltage value, the current value and the temperature detected by the detecting unit, and a determining unit which determines a charging state of the battery. The charging time computing unit is configured to compute a fully charged time of the battery based on a first charging ratio, a constant-current charging ratio, and a second charging ratio.05-24-2012
20120259567INTELLIGENT BATTERY PACK - The present relates to a battery pack adapted for receiving battery cells, and alternately to a battery pack comprising the battery cells. The present battery pack comprises an energy output, an energy input and a controller. The energy output outputs energy from the at least one battery cell. The energy, input receives energy for recharging the at least one battery cell, and the controller controls. the energy received from the energy input for recharging the at least one battery cell.10-11-2012
20120215472NONAQUEOUS ELECTROLYTE SOLUTION TYPE LITHIUM ION SECONDARY BATTERY SYSTEM, METHOD FOR DETERMINING LITHIUM DEPOSITION IN THAT SYSTEM, AND VEHICLE PROVIDED WITH THAT SYSTEM - A battery system includes a discharge amount obtaining portion that obtains a discharge amount (determination zone discharge amount) from a determination start voltage until a predetermined determination end voltage of a battery; an internal resistance obtaining portion that obtains an internal resistance value of the battery; a correlation map in which a combination of internal resistance value information and determination zone discharge amount information for a battery that is the same kind as a target of a determination and in which lithium deposition has not occurred is stored for each degree of age-related deterioration of the battery; and a deposition determining portion that determines a degree of lithium deposition in the target battery by comparing the determination zone discharge amount during the determination of the target battery with the internal resistance value during the determination of the target battery on the same scale by converting at least one via the correlation map.08-23-2012
20120136594DYNAMIC BATTERY CAPACITY ESTIMATION - A method of determining a state of health of a battery in real time includes estimating a parameter value associated with the state of health of the battery and determining one or more of a terminal voltage, an accumulated charge, a state of charge, and a temperature of the battery. The method further includes determining, via a computing device, a reserve capacity of the battery based at least in part on the estimated parameter value and one or more of the terminal voltage, the accumulated charge, the state of charge, and the temperature of the battery.05-31-2012
20120136595BATTERY DIFFUSION VOLTAGE ESTIMATION - A method includes estimating a first diffusion voltage value of a battery by selecting the first diffusion voltage value from a look-up table, estimating a second diffusion voltage value of the battery using an estimation procedure, selecting at least one of the estimated first and second diffusion voltage values, and determining an open circuit voltage of the battery based at least in part on the selected diffusion voltage value. The method may be implemented by a computing device in a vehicle.05-31-2012
20110184677BATTERY MANAGEMENT SYSTEM AND DRIVING METHOD THEREOF - A battery management system and a driving method thereof are disclosed, which may detect a short battery cell capable of causing short among a plurality of battery cells during a parking period of a vehicle. The battery management system includes a sensing unit for measuring a cell voltage and a cell current of each of a plurality of battery cells and an MCU for measuring an SOC of each of the battery cells to control charge and discharge by utilizing the cell voltage and the cell current of each of the battery cells. The MCU measures a first SOC of each of the battery cells in a key-off state and a second SOC of each of the battery cells in a key-on state after the key-off state. The MCU utilizes the first SOC, the second SOC, and a time period between the first and second SOCs to determine a short battery cell among the plurality of battery cells.07-28-2011
20100174498Battery monitoring algorithms for vehicles - A collection of computer software algorithms that ascertain the operational state of a vehicle's starter battery.07-08-2010
20100174499APPARATUS FOR ESTIMATING OPEN CIRCUIT VOLTAGE OF BATTERY, APPARATUS FOR ESTIMATING STATE OF CHARGE OF BATTERY, AND METHOD FOR CONTROLLING THE SAME - An apparatus for estimating an OCV of a battery includes a voltage sensing unit for measuring a battery output voltage; a temperature sensing unit for measuring a battery temperature; a data storing unit for periodically receiving the battery output voltage and temperature data from the sensing units and storing the data in a memory; an OCV variation estimating unit for calculating an OCV variation from a varying pattern of battery output voltages measured in the past and at the present, stored in the memory, by applying a mathematical model defining a correlation between the varying pattern and the OCV variation, and estimating an OCV at a current stage by reflecting a correction factor corresponding to the battery temperature on the calculated OCV variation; and an OCV estimating unit for estimating an OCV at the current stage by reflecting the estimated OCV variation on the OCV estimated at a last stage.07-08-2010
20120173179CHARGE STATE DETECTING DEVICE FOR BATTERY PACK AND METHOD FOR DETECTING CHARGE STATE - A total SOC of a battery pack including a collection of a plurality of battery blocks is calculated based on a plurality of block SOCs representing respective stored charge amounts in the plurality of battery blocks. In the case where a block SOC maximum value is higher than a control upper limit value, the total SOC is calculated to be higher than the control upper limit value. On the other hand, in the case where a block SOC minimum value is lower than a control lower limit value, the total SOC is calculated to be lower than the control upper limit value. Further, in the case where each of the block SOCs is in a range of not less than the control lower limit value and not more than the control upper limit value, the total SOC is determined to fall within the range of not less than the control lower limit value and not more than the control upper limit value.07-05-2012
20100017155BATTERY MANAGEMENT SYSTEM - A battery management system includes a neural network, for estimating an amount of charge stored in a battery following a recharging operation. Then, an amount of charge drawn during a discharging operation is subtracted from this estimated amount of charge to derive an estimate for the state of charge of the battery at a present time. A parameter representing the state of health of the battery may be provided as an input to the neural network, and the parameter representing the state of health of the battery may be generated by a second neural network.01-21-2010
20120316814SYSTEM AND METHOD FOR DETERMINING THE STATE OF HEALTH OF ELECTROCHEMICAL BATTERY CELLS - A system and method for determining the state of health of a battery. In particular, the present invention is related to a system and method for determining the state of health of an electrochemical battery cell by obtaining state of charge measurements for the battery cell, and using the state of charge measurements to calculate the state of health of the battery cell, wherein the state of charge measurements are based on the magnetic susceptibility of the battery cell. The system includes a sensing device for measuring the magnetic susceptibility of the battery cell, and a computing device for performing the steps of the disclosed method.12-13-2012
20120316813METHOD AND DEVICE FOR PROVIDING RELIABLE INFORMATION ABOUT THE LIFETIME OF A BATTERY - A battery powering a propulsion engine of a vehicle, is controlled by determining state data representative of the operation and wear of the battery, authenticating state data using an encryption method, and transmitting authenticated state data to an on-board computer of the vehicle for display.12-13-2012
20120316816METHOD FOR DETERMINING BATTERY CAPACITY - An electrical device is powered by a battery. The device includes transition phase determining circuitry operatively connected to the battery to determine that the battery has entered a transition phase based on the occurrence of a change in direction of current flowing through the battery. Battery capacity determining circuitry is operatively connected to the transition phase determining circuitry and configured to determine, in response the transition phase determining circuitry determining that the battery is in the transition phase, a capacity of the battery based on a transition phase battery capacity model of capacity-vs.-voltage. The transition phase determining circuitry is further configured to determine an end of the transition phase based on the transition phase battery capacity model and a non-transition battery capacity model of capacity-vs.-voltage yielding the same capacity value for a given measured voltage of the battery.12-13-2012
20120316815METHOD FOR EVALUATING DETERIORATION OF LITHIUM ION SECONDARY BATTERY, AND BATTERY PACK - Disclosed is a method for evaluating deterioration of a lithium ion secondary battery, in which an impedance spectrum of a lithium ion secondary battery is measured using alternating current of a predetermined frequency range. In a diagram including an arc-like portion obtained when the impedance spectrum is represented on a complex plane defined by a resistive component axis and a capacitive component axis, the coordinates of a peak of the arc-like portion are determined. The deterioration state of the lithium ion secondary battery is evaluated on the basis of the determined coordinates of the peak.12-13-2012
20120316810BATTERY LIMIT CALIBRATION BASED ON BATTERY LIFE AND PERFORMANCE OPTIMIZATION - Methods and systems are provided for calibrating one or more limits of a battery of a vehicle, the battery having state of charge limits and power limits. A history of environmental conditions for the vehicle is obtained and stored in a memory. One or more of the state of charge limits, one or more of the power limits, or both are adjusted based on the history of environmental conditions and usage severity using a processor.12-13-2012
20100049458ELECTRONIC EQUIPMENT AND POWER MANAGEMENT METHOD FOR THE ELECTRONIC EQUIPMENT, AND POWER SOURCE UNIT - Electronic equipment and power management method for the power equipment and a power source unit are provided. The present invention provides a guideline associated with control content required to use a fuel cell as a power source in various kinds of electronic equipment, and perform appropriate power management according to loads. A notebook personal computer includes a hybrid pack which has a battery serving as a secondary battery, a battery protection IC for controlling this battery, a fuel cell for causing a predetermine fuel and air to electrochemically react with each other so as to cause a power generating unit to generate power, and a fuel cell controller for controlling this fuel cell, and a computer body at least having a CPU for executing various processes and consuming power. In the hybrid pack, the battery protection IC and the fuel cell controller mutually transfer at least remaining battery power information indicative of the amount of power remaining in the battery and fuel cell status information indicative of a status of the fuel cell, to each other via a bus.02-25-2010
20100049457METHOD AND APPARATUS FOR MONITORING ENERGY STORAGE DEVICES - An improved battery, monitoring circuit and method for communicating with the battery is provided. Such batteries and communication methods are particularly useful in UPS systems that use such batteries to provide back-up power to electrical loads. In one aspect, performance, manufacturing, trend and/or other data are stored in non-volatile memory of the battery and are communicated to an external system such as a UPS. In another aspect, a method for communicating via single-wire interface is provided. In one aspect, a same interface is used to communicate with both conventional batteries and improved batteries having increased monitoring capabilities.02-25-2010
20100280777Method for Measuring SOC of a Battery in a Battery Management System and the Apparatus Thereof - According to an embodiment of this invention, a method for measuring SOC (State Of Charge) of a battery comprises the steps of: obtaining current data, voltage data and temperature by measuring the current, the voltage and the temperature of a battery; calculating SOCi (State Of Charge based on current) by accumulating the current data; calculating open circuit voltage by using an equivalent circuit model which simply presents the current data, the voltage data and the battery through an electric circuit; calculating SOCv (State Of Charge based on voltage) by using the temperature data and the open circuit voltage; and choosing at least one of the SOCi and the SOCv as SOC of the battery by using the SOCi and the SOCv based on the judgment on the current state of the battery for a certain time interval.11-04-2010
20120179399BATTERY SYSTEM AND ENERGY STORAGE SYSTEM INCLUDING THE SAME - A battery system having components with reduced maximum voltage tolerance requirements is disclosed. The battery system includes a battery pack with battery modules, and measuring units, which are connected to the battery modules. The measuring units have first analog front ends (AFEs) for monitoring the at least two battery modules. Each first AFE is configured to transmit information related to the monitored characteristic via an isolator to a processor configured to control the battery pack based on the transmitted information. The isolator receives the transmitted information from an AFE which is not connected to the battery module having the least electric potential or to the battery module having the greatest electric potential.07-12-2012
20120179398NONAQUEOUS ELECTROLYTE TYPE LITHIUM ION SECONDARY BATTERY SYSTEM, METHOD OF DETERMINING LITHIUM DEPOSITION IN THE SYSTEM, AND VEHICLE MOUNTING THE SYSTEM - It is arranged to obtain charging voltage when charging voltage is applied to a nonaqueous electrolyte type lithium ion secondary battery and discharging voltage when a discharging current is generated by the battery. A coefficient of a quadratic term of an approximated curve of a quadratic function with respect to changes in value within a sampling period for each of the charging voltage and the discharging voltage is calculated. This calculation is repeated over a plurality of the sampling periods. Based on occurrence situations of symmetry phenomenon and intersection phenomenon in the calculated coefficients, it can be determined whether or not there is a possibility of lithium deposition without disassembling the battery.07-12-2012
20100274509Portable Electronic Device and Method for Controlling the Same - Provided are a portable electronic device which accurately judges service life of a battery even when the battery is replaced, and a method for controlling such portable electronic device. A control block (10-28-2010
20100274508Mobile Electronic Device and Method for Controlling the Same - It is possible to provide a mobile electronic device which can accurately and clearly display a cell service life and a method for controlling the device.10-28-2010
20120253717BATTERY VOLTAGE DETECTOR AND BATTERY VOLTAGE DETECTING METHOD - A battery voltage detector includes: a voltage detection circuit; a voltage processor; and a power voltage. The voltage detection circuit is configured to detect a cell voltage of a battery cell. The voltage processor is configured to perform analog-to-digital conversion on the cell voltage with a predetermined period to collect cell voltage detection data. The power voltage monitoring circuit is configured to determine whether or not an instantaneous variation of an externally-supplied power voltage occurs, and output an instantaneous variation detection signal indicating a result of detection to the voltage processor. If the voltage processor detects based on the instantaneous variation detection signal that the instantaneous variation of the externally-supplied power voltage occurs, the voltage processor is configured to delete the cell voltage detection data that is the newest.10-04-2012
20120253714BATTERY VOLTAGE MEASUREMENT - An apparatus is provided that includes a first circuit to determine when a battery current falls below a threshold, a second circuit to measure a battery voltage and current in response to the first circuit determining that the battery current falls below the threshold, and a third circuit to store the measured battery voltage and current.10-04-2012
20120253715ELECTRIC CHARGING SYSTEM - In an electric charging system, an electric charger and an electric vehicle is connected via a charging cable, and charging power is provided to a battery of the electric vehicle via the charging cable. The electric charger calculates a voltage drop based on a supply current Is of the electric charger and an electric resistance of the charging cable. The electric charger compares a supply voltage of the electric charger with a determination value, and, if the supply voltage reaches the determination value, determines that the battery is charged to a fully-charged state. The determination value is updated by adding the voltage drop to a preset determination base value so as to take the voltage drop of the charging cable into account.10-04-2012
20120253713ESTIMATING THE CAPACITY OF A LI-ION BATTERY BASED ON INITIAL PART OF THE DISCHARGE CURVE - A system and method for testing a battery is provided. A load is connected in electrical series connection with the battery. A sensor may be in communication with the battery for measuring a battery discharge curve. A processor monitors an output of the battery and determines a battery status based on a slope of an initial portion of the battery discharge curve.10-04-2012
20100268492Battery cell voltage measurement device - A battery cell voltage measurement device for a battery pack constructed by battery cells (E10-21-2010
20120259568ELECTRONIC DEVICE WITH BATTERY CAPACITY DETECTING FUNCTION AND BATTERY CAPACITY DETECTING METHOD THEREOF - An electronic device with a battery capacity detecting function is provided. The electronic device detects an actual voltage of the battery every first preset time interval, calculates a weighted average voltage within a second preset time interval according to all the detected actual voltages within the second preset time interval, and determines a battery capacity according to the calculated weighted average voltage. A method for detecting a battery capacity of an electronic device is also provided.10-11-2012
20120259569DIAGNOSIS SYSTEM AND DIAGNOSIS METHOD FOR LITHIUM ION SECONDARY BATTERY - Manufacturing management information relating to a module battery and single battery mounted therein which are obtained in a battery manufacturing process (10-11-2012
20120239325BATTERY CAPACITY ESTIMATION - A method comprising obtaining a voltage sample of a battery; converting the voltage sample to a battery capacity; calculating an average battery capacity based on averaging battery capacity values stored in a buffer; converting the average battery capacity to a voltage; calculating a current consumption based on the voltage sample and the voltage, wherein the current consumption corresponds to current consumed during a sampling period of the voltage sample; calculating a voting factor based on the current consumption; calculating a battery capacity difference based on a difference between the average battery capacity and the battery capacity; determining whether the battery capacity difference is greater than zero; and storing the average battery capacity in the buffer, a number of times, corresponding to the voting factor, when the battery capacity difference is equal to or less than zero.09-20-2012
20110130983BATTERY MONITORING SYSTEM - A battery monitoring system includes a detector and a supervisor connected to the detector. Wherein, pluralities of sensors of the detector respectively disposed on battery cells of the battery for at least correspondingly detecting voltage and temperature signals of the battery cells. Subsequently, the aforementioned signals are transmitted to a central processor for a separate conversion into accessible and distinguishable data applied to compare with a predetermined threshold. Finally, the compared results would be shown on the supervisor for users to realize the physical state of each battery. The central processor friendly reacts to the compared result under the irregular state and emits a warning signal to the supervisor, for which to promptly carry out a warning action.06-02-2011
20120265461ELECTRONIC DEVICE AND SYSTEM TIME SETTING METHOD THEREOF - A system time setting function for an electronic device includes a battery module, a clock module, a processing module and a storage module. The battery module includes a battery gauge integrated chip which times in cycles and measuring a remaining battery capacity. The clock module generates a system time T10-18-2012
20120265462METHOD AND APPARATUS FOR DETERMINING DETERIORATION OF SECONDARY BATTERY, AND POWER SUPPLY SYSTEM THEREWITH - A method for detecting SOC and SOH of a storage battery includes: calculating an SOC value of the storage battery with use of an SOC calculation unit based on a measured voltage value or a measured current value of the storage battery and calculating an SOH value of the storage battery with use of an SOH calculation unit based on the SOC value; further calculating a new SOC value with use of the SOC calculation unit based on the SOH value and calculating a new SOH value with use of the SOH calculation unit based on the new SOC value, these further calculations of SOC value and SOH value being repeated a prescribed n times of at least one so as to obtain an nth calculated SOC value and an nth calculated SOH value; outputting the nth calculated SOH value as an SOH output value and outputting the nth calculated SOH value as an SOC output value; and storing the SOH output value into a memory.10-18-2012
20120323511BATTERY STATE NOTIFYING UNIT, BUS BAR MODULE, BATTERY PACK, AND BATTERY STATE MONITORING SYSTEM - [Problem to be Solved]12-20-2012
20120323512Battery Charge Determination - A method of determining a current state of charge of a battery having an internal resistance comprises estimating the current state of charge of the battery at a current time as a function of a previous state of charge of the battery at a previous time, a battery voltage of the battery during a time interval between the previous time and the current time, and a value of the internal resistance of the battery. The method improves the determining of the current state of charge of a battery.12-20-2012
20120330588Battery Monitoring System - A battery monitoring system including an on-site battery event monitor (BEM) that sends out battery-related data to a server over a wide area network (WAN). The BEM sends out data in a broadcast (or unicast manner) to predetermined server(s) without being queried or polled. This improves network security and data security and also eliminates the need for on-site network configuration and administration.12-27-2012
20120330589BINDER WITH GOOD RATE PROPERTY AND LONG CYCLEABILITY FOR LITHIUM SECONDARY BATTERY - Disclosed is a binder, which comprises polymer particles obtained by polymerization of: (a) 1˜80 parts by weight of a (meth)acrylic acid ester monomer; (b) 1˜20 parts by weight of an unsaturated carboxylic acid monomer; and (c) 0.001˜40 parts by weight of a vinyl monomer, based on 100 parts by weight of the binder polymer, and which allows electrode active material particles capable of lithium intercalation/deintercalation to be fixed and linked among themselves, and between the particles and a collector. An electrode comprising the binder, and a lithium secondary battery having the electrode are also disclosed. Further, a method for evaluating interrelation between wettability of a binder to an electrolyte and quality of a battery comprising the binder is disclosed.12-27-2012
20110046905BATTERY MANAGEMENT SYSTEM - A battery management system for monitoring a plurality of battery cells, including a plurality of electronic boards, each of the electronic boards being mounted on a respective one of the battery cells, wherein the electronic boards are connected in series to a central processor by a twisted wire pair, the twisted wire pair being connected to each electronic board by a coupling, wherein the coupling is open during normal use and is closed to connect the wires of the twisted wire pair in response to sensing a predetermined event in relation to the respective battery cell such that the central processor is able to determine from a level of voltage returned through the twisted wire pair the number of battery cells at which the predetermined event has been sensed.02-24-2011
20120271577MATERIAL PROPERTY TESTING DEVICES WITH CAPABILITIES OF MONITORING ENERGY-CONSUMPTION AND DETECTING THE ENVIRONMENT - A material property testing device with capabilities of energy-consumption monitoring and environment detecting the device including a processing unit, which intercommunicates with the testing unit and the storage unit; the input end of the processing unit connects with an energy monitoring device and an environment detecting unit; the energy monitoring device is installed in a power supply module to monitor the electricity consumption conditions and sends the energy consumption data to the processing unit; the environment detecting unit adopts a detection sensor to detect the environment conditions and sends the environmental information to the processing unit.10-25-2012
20120271578BATTERY MANAGEMENT SYSTEM - A battery management system includes a neural network, for estimating an amount of charge stored in a battery following a recharging operation. Then, an amount of charge drawn during a discharging operation is subtracted from this estimated amount of charge to derive an estimate for the state of charge of the battery at a present time. A parameter representing the state of health of the battery may be provided as an input to the neural network, and the parameter representing the state of health of the battery may be generated by a second neural network.10-25-2012
20110238344SYSTEM AND METHOD OF BATTERY CAPACITY ESTIMATION - A method includes measuring an operating parameter of a battery of a mobile device. The measured operating parameter is translated into an equivalent series resistance (ESR) value. The ESR value is adjusted by a correction factor to generate a corrected ESR value. The capacity of the battery is determined based on the corrected ESR value. The correction factor is automatically calibrated based on the measured operating parameter.09-29-2011
20110238343Apparatus, system and method of managing battery level of wirelessly communicable radiographic cassette - A current charge level of a battery presently used for supplying a wirelessly communicable cassette is detected and transmitted to a console of an X-ray imaging apparatus. In the console, a power consumption calculator calculates an estimated amount of power consumption by the cassette for each of received orders for inspections. When a new order for inspection is received, or one of the ordered inspections is canceled or finished, or the battery of the cassette is replaced, the last inspection until which the presently used battery can effectively supply the cassette is determined among the ordered inspections on the basis of the detected current charge level and the estimated power consumption amounts for the individual inspections, to display a message prompting to replace the presently used battery before the end of the determined last inspection.09-29-2011
20110257913ELECTRONIC BATTERY TESTER WITH BATTERY AGE INPUT - An electronic battery tester for testing a storage battery, includes connections configured to couple to terminals of the battery. Measurement circuitry is coupled to the connections and configured to measure a parameter of the battery. An input is configured to receive a battery age input variable. Computation circuitry is configured to provide a test output related to a condition of the battery based upon the measured parameter and the battery age input variable.10-20-2011
20120130660Battery Life Monitor System and Method - An apparatus includes a battery, a plurality of circuit components operable independently, and a controller coupled to the battery and the plurality of circuit components and configured to control operation of the plurality of circuit components. The apparatus further includes a power consumption monitor coupled to the controller and configured to calculate a remaining battery life of the battery based on at least one operating time of a corresponding at least one of the plurality of circuit components.05-24-2012
20120089353METHODS OF INVERSE DETERMINATION OF MATERIAL PROPERTIES OF AN ELECTROCHEMICAL SYSTEM - A method of determining at least one material property of at least one component of an electrochemical system (fully or partially completed) using a process to reduce a difference of a performance characteristic between a numerical simulation result of a physical model and an empirical result. The method includes providing an electrochemical cell using a thin film process and performing a plurality of tests on the electrochemical cell to identify one or more target performance characteristics of the electrochemical cell. The method includes performing a surrogate based analysis process and determining a plurality of outputs of the surrogate based analysis function and determines a value of the unknown material property.04-12-2012
20120089352MODULAR DEVICE FOR PROTECTING AND MONITORING A BATTERY - A modular device having at least one master integrated circuit, and one or more slave integrated circuit modules coupled to the at least one master integrated circuit with each slave integrated circuit module of the one or more slave integrated circuit modules coupled to and associated with only a single cell of the battery. Each slave integrated circuit module of the one or more slave integrated circuit modules further comprises: detection circuitry adapted to detect data comprising one or more of the temperature, voltage or charge status, and malfunctioning of the single cell associated with and monitored by the slave integrated circuit; and an interface operable to send said detected data to the at least one master integrated circuit. The at least one master integrated circuit is adapted to send commands to a slave integrated circuit module in response to the detected data detected by the slave integrated circuit module.04-12-2012
20110276290Device for counting and storing automatically number of times of usage of cell - A device for counting and storing automatically the number of times of usage of a cell is provided. The device essentially includes at least a battery, a current sensor, a microprocessor, a memory unit, and a communication interface. Electrical connection is provided between the microprocessor and other components. The microprocessor, coupled with the current sensor, determines a time to start or stop counting, adds up the calculated charging and discharging duration, and sends the total duration to the memory unit. An external device can be connected to the microprocessor via the communication interface for reading from the memory unit the accumulative total of the charging and discharging duration, and obtain the number of times of the full charging and the full discharging of the battery by formula-based conversion. The device enables users and maintenance technicians to understand the past usage of the cell, and provides reference for warranty maintenance.11-10-2011
20120290234SYSTEMS AND METHODS FOR DETERMINING CELL CAPACITY VALUES IN A MULTI-CELL BATTERY - Systems and methods to determine cell capacities of a vehicle battery pack. Cell capacities may be determined using state of charge (SOC) estimates for the cells and a charge count for the battery pack. The SOC estimates may be determined when the SOC of the battery pack is below a lower threshold and above an upper threshold. Error values may also be generated for the cell capacity values.11-15-2012
20120101755VEHICULAR BATTERY PACK - A battery pack includes a battery module that charges and discharges electricity to be used to drive a vehicle, and a monitoring controller for monitoring charge of the battery module. The monitoring controller stores past charge records and past discharge records in a charge-discharge history. Based on an analysis of learning data of a charge-discharge cycle in the charge-discharge history, the monitoring controller determines a charge operation, which may either be a normal charge or a quick charge, for charging the battery. The normal charge provides a charging electric current per unit time that is less than the charging current per unit time of the quick charge.04-26-2012
20120101754METHOD OF ESTIMATING REMAINING CONSTANT CURRENT/CONSTANT VOLTAGE CHARGING TIME - Method, apparatus, and computer program product embodiments are disclosed for estimating the remaining charging time of a rechargeable battery. An example embodiment of the invention comprises a method comprising the steps of determining if the battery charging point is in a constant current phase or in a constant voltage phase; if the battery charging point is in the constant current phase, calculating a time remaining to charge in the constant current phase based on the constant current phase charging characteristics and a time remaining to charge in the constant voltage phase based on the constant voltage phase charging characteristics; and if the battery charging point is in the constant voltage phase, calculating a time remaining to charge in the constant voltage phase based on the constant voltage phase charging characteristics.04-26-2012
20120290235SYSTEMS AND METHODS FOR DETERMINING THE STATE OF CHARGE OF A BATTERY UTILIZING CONFIDENCE VALUES - Systems and methods to determine a state of charge (SOC) of a battery using confidence values. SOC estimations are determined using a voltage-based estimation strategy and a current-based estimation strategy. Confidence values are also generated for the voltage-based SOC estimation and the current-based SOC estimation to quantify the amount of uncertainty associated with the SOC estimations. An overall SOC estimation is determined by comparing the confidence values and selecting the SOC estimation having the least amount of uncertainty.11-15-2012
20100185405Battery Control Device - A plurality of resistance value tables of a battery group with respect to temperature and SOC of the assembled battery, which are measured in advance when currents of different change patterns flow in the assembled battery, are stored. A resistance value for the assembled battery is calculated, based upon its voltage and current. From among the plurality of resistance value tables, a resistance value table is selected so that it corresponds to the change pattern of the current flowing in the assembled battery when the voltage and the current of the assembled battery were measured, and a resistance value is searched for from that resistance value table corresponding to the temperature and the SOC of the assembled battery. Then the calculated resistance value and the one from the table are compared to determine the life of the assembled battery.07-22-2010
20100169033State Of Charge Determination - A method, device and computer program product for determining the state of charge of at least one battery as well as to a power compensator for an electric power transmission line including such a device. The device includes an internal states prediction unit and a state of charge determining unit. The internal states prediction unit makes an internal states prediction of a battery based on a model for the battery, where each internal state is related to the charge distribution in the battery, adjusts the internal states prediction with measured properties of the battery and applies the adjusted internal states prediction in the making of following internal state predictions. The state of charge determining unit provides the estimated state of charge (SOC) as a function of the predicted internal states. The invention allows the provision of improved state of charge estimates.07-01-2010
20130013235SYSTEM, METHOD, AND PROGRAM PRODUCT FOR PREDICTING STATE OF BATTERY - An observation model for calculating a capacity maintenance ratio of a battery. The capacity maintenance ratio is calculated on the basis of basic data representing an internal state of the battery (such as a feature quantity extracted from a positive and negative AC impedance curve plot), and a transition model for mapping a temporally preceding internal state and deterioration environment (SOC, that is, the battery capacity that is actually available, temperature, etc.) onto a current internal state are prepared in advance. Using the above models, a transition path of an internal state having the maximum likelihood, that is, the minimum sum of squares of differences between predictive values calculated from the above models and an actual value, is determined using an optimization method that is preferably dynamic programming, and the capacity maintenance ratio is predicted.01-10-2013
20130013238METHOD OF DETECTING BATTERY CAPACITY OF SECONDARY BATTERY - A method detecting a battery capacity of a secondary battery, in which charging mode includes first mode including only ON state, and second mode including ON state and OFF state, the method includes: charging mode selection process of selecting the charging mode; internal resistance calculation process calculating internal resistance of secondary battery when ON state and OFF state are switched; remaining capacity calculation process calculating remaining capacity of secondary battery; remaining capacity variation amount calculation process calculating variation amount of remaining capacity from most recent full charge capacity calculation time; charged electricity amount calculation process of calculating amount of charged electricity in accordance with integrated value of current that flowed from point of time at which most recent full charge capacity is calculated; and full charge capacity detection process of detecting full charge capacity of secondary battery based on variation amount of remaining capacity and amount of charged electricity.01-10-2013
20130013237STATE-OF-CHARGE ESTIMATION METHOD, STATE-OF-CHARGE ESTIMATION DEVICE, AND SECONDARY-BATTERY POWER SYSTEM - There is provided a state-of-charge estimation method, a state-of-charge estimation device, and a secondary-battery power system that may quickly and stably determine the convergence value of an adjustment parameter of a voltage characteristic formula that may approximate change over time of an open-circuit voltage of a secondary battery with high precision by appropriately setting the initial value of the adjustment parameter. At step S01-10-2013
20130013236SYSTEM, METHOD, AND PROGRAM PRODUCT FOR PREDICTING STATE OF BATTERY - An observation model for calculating a capacity maintenance ratio of a battery. The capacity maintenance ratio is calculated on the basis of basic data representing an internal state of the battery (such as a feature quantity extracted from a positive and negative AC impedance curve plot), and a transition model for mapping a temporally preceding internal state and deterioration environment (SOC, that is, the battery capacity that is actually available, temperature, etc.) onto a current internal state are prepared in advance. Using the above models, a transition path of an internal state having the maximum likelihood, that is, the minimum sum of squares of differences between predictive values calculated from the above models and an actual value, is determined using an optimization method that is preferably dynamic programming, and the capacity maintenance ratio is predicted.01-10-2013
20100153038STATE ESTIMATING DEVICE OF SECONDARY BATTERY - A battery state estimating unit (06-17-2010
20100131217VEHICLE POWER SUPPLY DEVICE AND METHOD OF ESTIMATING STATE OF CHARGE OF POWER STORAGE DEVICE IN VEHICLE POWER SUPPLY DEVICE - A vehicle power supply device includes a battery (B05-27-2010
20100131218Method of Performance Analysis for VRLA Battery - This invention discloses a method of performance analysis for VRLA battery which applies the method of using the float voltage dispersion ratio of the battery to evaluate the battery performance from a new perspective, and it is an online real-time test which applies several ways to evaluate the performance of the VRLA battery. According to the relevance between the dispersion of the float charge voltage of the battery and its performance, the method gets the result of the battery performance through calculating the battery float charge voltage dispersion ratio and making it relevant with the battery performance. It has small workload, convenient operation and no danger to the system when doing online testing. It also won't affect the cycle life of the VRLA battery.05-27-2010
20130018610SECONDARY BATTERY MODULE, BATTERY INFORMATION MANAGEMENT DEVICE, BATTERY INFORMATION MANAGEMENT SYSTEM, SECONDARY BATTERY REUSE SYSTEM, SECONDARY BATTERY RECOVERY AND SALES SYSTEM, SECONDARY BATTERY REUSE METHOD, AND SECONDARY BATTERY RECOVERY AND SALES METHOD - A secondary battery module includes a battery information storage unit for storing electric characteristic information and usage history information of the secondary battery module. A battery information management device and a terminal device respectively include interfaces to be connected to the secondary battery module. The battery information management device is provided with a battery information database. The battery information management device is connected to the terminal device through a communications network. In this way, battery information stored in the battery information storage unit, which is acquired by the battery information management device and the terminal device, is accumulated in the battery information database. Moreover, the battery information management device grades the secondary battery module for reuse based on the battery information and a predetermined threshold.01-17-2013
20110161025STATE ESTIMATING DEVICE FOR SECONDARY BATTERY - A battery state estimating unit estimates an internal state of a secondary battery in accordance with a battery model equation in every arithmetic cycle, and estimates a charging rate and a battery current based on a result of the estimation. A parameter estimating unit obtains a battery current measured by a sensor as well as the charging rate and the battery current estimated by the battery state estimating unit. The parameter estimating unit estimates a capacity deterioration parameter such that a rate of change in difference (estimation error) between a summed value of an actual current and a summed value of an estimated current with respect to the charging rate is minimized. A result obtained by estimating the capacity deterioration parameter is reflected in the battery model by the battery state estimating unit.06-30-2011
20110161024BATTERY MULTI-SERIES SYSTEM AND COMMUNICATION METHOD THEREOF - A battery multi-series system and a communication method thereof. The battery multi-series system includes a master battery management system managing a battery; and a block master battery management system connected to the master battery management system and receiving data from at least one slave battery management system and storing the received data, wherein the master battery management system receives data periodically from the block master battery management system.06-30-2011
20100088050PORTABLE HEAVY LOAD BATTERY TESTING SYSTEM AND METHOD - A portable measurement device and method for measuring a parameter value of a battery. The measurement device connects a large resistive load to a battery being tested. The load is connected to the battery through a first set of kelvin connected clamps and a switch. A microprocessor measures open and closed circuit voltages via a second set of kelvin connected jaws. The microprocessor determines voltage drop curve data based on the measure open and closed circuit voltages. The microprocessor compares the voltage drop curve data to voltage drop profile data for a particular parameter to determine the parameter value for the battery.04-08-2010
20080234956METHOD OF CALCULATING STATE VARIABLES OF SECONDARY BATTERY AND APPARATUS FOR ESTIMATING STATE VARIABLES OF SECONDARY BATTERY - An apparatus for estimating state variables of a secondary battery as an estimation target performs so that a neural network unit studies a true value of a battery temperature, a temperature large value which is larger than the true value of the battery temperature by an approximating temperature sensor detection error, and a temperature small value which is smaller than the true value of the battery temperature by the approximating temperature sensor detection error. After completion of the learning of those values, the neural network unit inputs a battery temperature detected by the temperature sensor, and performs a neural network based calculation to calculate a SOC (state of charge) of the secondary battery. This can drastically increase the calculation accuracy of the SOC of the secondary battery.09-25-2008
20110264390METHOD AND APPARATUS FOR DETERMINING STATE OF CHARGE VALUES FOR AN ELECTRICAL POWER CELL - A method for determining a state of charge value for an electrical power cell comprises obtaining an indication of a charge level of the electrical power cell, obtaining at least one indication of at least one operating condition for the electrical power cell, and determining an available charge indication value and a potential charge indication value based at least partly on the charge level indication and the at least one operating condition indication.10-27-2011
20130144547APPARATUS FOR CONTROLLING BATTERY PACK, AND ENERGY STORAGE SYSTEM INCLUDING THE APPARATUS - An apparatus for controlling a battery pack and an energy storage system including the apparatus are disclosed. In one embodiment, the battery pack includes at least one battery tray each including one or more battery cells. The apparatus may include an open circuit voltage (OCV) calculator and a state of charge (SOC) estimator. The OCV calculator may receive OCV measurement values of the battery cells of each battery tray when the power of the battery pack is turned on, and calculate a final OCV of the battery cells based at least in part on the OCV measurement values. The SOC estimator may extract an SOC value corresponding to the final OCV from an SOC table and estimate the extracted SOC value as an initial SOC.06-06-2013
20120253716BATTERY VOLTAGE DETECTOR - A battery voltage detector includes a voltage detection circuit and a voltage processor. The voltage detection circuit includes a capacitor, a pair of output terminals and an output switch. A power source voltage is supplied from a power source to a higher voltage output terminal of the pair of output terminals in the voltage detection circuit. While the output switch is turned off, the voltage processor takes in a voltage between the output terminals as a voltage for determining a defect and determines whether or not a false detection of the cell voltage has occurred based on the voltage for determining the defect.10-04-2012
20080215266METHOD OF CALCULATING INTERNAL RESISTANCE OF SECONDARY BATTERY FOR VEHICLE - A current Ibe and a voltage Vbe before a large current discharge in a secondary battery are stored in a memory. Plural voltage-current pairs are detected and stored in the memory during the large current discharge. Next, a regression curve (or a regression line) is obtained based on the plural voltage-current pairs stored in the memory using a well-known method. A discharge current Ip which exceeds a current-sensor detectable range is input in the regression curve to obtain a voltage Vp. A maximum discharge coordinate is set using the discharge current Ip and the voltage Vp. An internal resistance Rin of the secondary battery is calculated based on an inclination of a line that connects the coordinates (Ibe, Vbe) and (Ip, Vp).09-04-2008
20130090871CAPACITY ESTIMATING APPARATUS FOR SECONDARY BATTERY - A capacity estimating apparatus for a secondary battery includes a current-detecting section configured to detect a value of current flowing in the secondary battery; a voltage-detecting section configured to detect a voltage value of the secondary battery; a first estimating section configured to calculate a first estimate value of a remaining capacity of the secondary battery on the basis of an accumulated value of the current values detected by the current-detecting section; and a second estimating section configured to calculate a second estimate value of the remaining capacity of the secondary battery on the basis of the voltage value detected by the voltage-detecting section. The first estimating section is configured to calculate a difference between the first estimate value and the second estimate value, and to correct the first estimate value by correcting the accumulated value so as to gradually reduce the difference.04-11-2013
20130090870BATTERY TESTERS WITH SECONDARY FUNCTIONALITY - An electronic vehicle tester includes a battery tester configured to measure a parameter of a battery of a vehicle. A tire tester is configured to receive a parameter of a tire of the vehicle. A wireless receiver can be configured to receive pressure information from a transmitter associated with a tire of a vehicle.04-11-2013
20130090872BATTERY MANAGEMENT SYSTEM, BATTERY MANAGEMENT APPARATUS, METHOD OF REUSING BATTERY, AND INFORMATION COMMUNICATION TERMINAL APPARATUS - Provided is a method of reusing a battery, a battery management system, a battery management apparatus, and an information communication terminal apparatus, wherein, upon retrieving batteries mounted on vehicles, methods of handling the retrieved batteries can be determined at low cost. Measurement data of each of a plurality of stacks constituting a battery pack are transmitted to a data station. The data station stores the received measurement data in a history information storage unit as history information. When history information of a battery pack mounted on a scrapped vehicle is not stored in the history information storage unit of the data station, that battery pack is subjected to recycle processing. When history information thereof is stored in the history information storage unit of the data station, a method of reusing the battery pack is determined on the basis of the history information.04-11-2013
20130096858SYSTEM, METHOD, AND PROGRAM FOR PREDICTING STATE OF BATTERY - A method and system for predicting degradation of a battery. Modeling of a battery is made to be separated into an aging section and a current-carrying section. The modeling is established such that the amount of degradation of a capacity retention ratio is determined by the linear sum of stay at each temperature and each SOC. The separation into degradation components at each temperature and each SOC enables predicting degradation under various degradation environments. A model for a battery separated into an aging section and a current-carrying section and a calculation model of a root law are combined into an objective function, and a table of discharge coefficients a04-18-2013
20130103332VOLTAGE CALIBRATION METHOD - In a rechargeable battery set, an average voltage is computed from average voltage drop produced by the sum of internal resistances of each battery cell. A calculated internal resistance of each battery cell is then computed from a measured voltage of each battery cell and the average voltage. Finally, the measured voltage of each battery cell is calibrated according to the calculated internal resistance and a calibrated voltage of each battery cell may be computed. In such way, the calibrated voltage of each battery cell is much closer to a real voltage of the battery cell, which provides a battery control unit more precise information when charging/discharging the battery cells.04-25-2013
20130103333BATTERY SYSTEM - A battery system includes secondary batteries (Ca to Ch), temperature sensors (Ta to Th), current sensors (Ia and Ib), voltage sensors (Va to Vh), and a control unit 04-25-2013
20130179103BATTERY ANALYSIS DEVICE AND METHOD THEREOF - A battery analysis device for a battery module having at least one battery cell includes a power source supply unit, a signal capturing unit, a signal adjusting unit, a frequency domain analyzing unit, a time domain analyzing unit, and a processing unit. The power source supply unit provides a variable-frequency voltage signal to a battery cell. The signal capturing unit captures a current signal generated by a battery cell in response to the variable-frequency voltage signal. The signal adjusting unit adjusts the variable-frequency voltage signal and the current signal. The frequency domain analyzing unit and time domain analyzing unit analyze both the adjusted variable-frequency voltage signal and the adjusted current signal in frequency domain and time domain respectively for obtaining a frequency domain parameter and a time domain parameter. The processing unit obtains electrochemistry characteristics of the battery cell according to the frequency and the time domain parameters.07-11-2013
20130124121BATTERY PACK MANAGEMENT - A battery pack management system provides information such as remaining capacity and/or run time to empty for a battery. A time taken for a battery voltage to drop a threshold amount is measured and used to determine a remaining capacity of the battery. The time may be associated with a temperature and current of the battery. The remaining capacity of a battery is calculated by monitoring a discharge of the battery. For example, current drawn from the battery is monitored over a period of time and an initial amount by which the battery has been discharged is calculated. Compensation of this initial amount is carried out in order to take into account factors such as temperature, self-discharge rate and age of the battery.05-16-2013
20110313699METHOD FOR CALCULATING STATE OF CHARGE OF SODIUM-SULFUR BATTERY - An accurately and precisely calculation of the state of charge of a sodium-sulfur battery may be made by determining a state of charge Qr according to expression (1) given below even if the sodium-sulfur battery is applied to compensate for fluctuations in the power generated by a natural energy generating device: Qr=100×(1−(Qu/(Qa−Qsf))) . . . (1) where Qu: used capacity; Qa: product capacity; and Qsf: residual capacity in final year; and Qsf=f12-22-2011
20110313698VOLTAGE POLARITY DETERMINATION CIRCUIT AND CHARGE AMOUNT MEASUREMENT CIRCUIT - A voltage polarity determination circuit includes an integration circuit, a switch, and a time measurement circuit. The integration circuit includes an operational amplifier circuit having an input offset voltage which is larger than the maximum value of a voltage input to the integration circuit or smaller than the minimum value of the input voltage of the integration circuit. The switch switches the input voltage of the integration circuit between a voltage whose polarity is to be determined and a reference voltage. The time measurement circuit measures a time interval which it takes for the output voltage of the integration circuit to reach a set voltage, and based on the result of the measurement, determines the polarity of the input voltage of the integration circuit.12-22-2011
20110313697METHOD AND APPARATUS FOR MONITORING BATTERY LIFE - A method and apparatus for monitoring battery life in a human input device powered by replaceable batteries includes repeatedly measuring battery charge by use of a measuring arrangement forming part of the input device. Battery charge is measured while the input device is in a relatively inactive condition and when it is in an active condition, and a time value is associated with each battery charge measurement. A usage model may be constructed based on the battery charge measurements, and calculation of an expected battery life may be based at least in part on the usage model.12-22-2011
20100286938BATTERY PACK CONTROL APPARATUS - A battery pack control apparatus is provided with first, second and third monitoring devices, a battery pack control device, first and second communication devices, and a first electric power consuming device. The monitoring devices are connected to the single battery cells of a battery pack to monitor a state of the single battery cells. The battery pack control device communicates data related with the third monitoring device through the first communication device having an electric insulating quality and with the first monitoring device through a second communication device having an electric insulating quality. The second monitoring device communicates data with the first and third monitoring devices. The first electric power consuming device consumes an amount of electric power at a single battery cell connected to the second monitoring device. The amount of electric power corresponds to a communication occurring at the second communication device.11-11-2010
20130151180BATTERY MAGNETIC STATE OF CHARGE SENSOR CONTROL ALGORITHM - A system and method for estimating the state-of-charge (SOC) of a battery cell in a vehicle using a magnetic sensor that measures changes in magnetism of the battery cell. The method provides an offset correction to a current output signal from the magnetic sensor that calibrates the current output signal to a known magnetic field strength, provides a temperature correction to the current output signal that corrects the current output signal based on a temperature of the magnetic sensor, and provides a current correction to the current output signal that removes portions of the magnetic field caused by other battery cells, where the corrected current output signal is converted to the battery cell SOC.06-13-2013
20130151183TECHNIQUE OF DETERMINING DEGRADATION OF HIGH-VOLTAGE BATTERY FOR VEHICLE - Disclosed herein is a technique for determining degradation of a high-voltage battery of a vehicle. More specifically, variations in charge capacity with respect to a predetermined variation in voltage of a high-voltage battery that is currently being slowly charged are obtained depending on degradation degrees of the high-voltage battery. A vehicle equipped with a high-voltage battery having a specification identical to those of the high-voltage battery is used to acquire a charge capacity and a voltage of the high-voltage battery that is currently being slowly charged. A variation in charge capacity with respect to the predetermined variation in voltage is calculated from the charge capacity and the voltage. The variation in charge capacity with respect to the predetermined variation in voltage is compared with the variations in charge capacity with respect to the predetermined variation in voltage depending on the degradation degrees, thus determining a relevant degradation degree.06-13-2013
20130151181DETERMINING A BATTERY CHEMISTRY FOR A BATTERY IN A PERIPHERAL DEVICE - Some embodiments provide a system that determines a battery chemistry for a battery in a peripheral device. During operation, the system determines a first voltage of the battery at a first time and a second voltage of the battery at a second time. The first voltage and the second voltage are then compared to one or more predetermined battery usage profiles to determine the battery chemistry.06-13-2013
20130151182PROCESS FOR SUPPLYING A MEDICAL DEVICE - A process for supplying a medical device (06-13-2013
20130158915Method, Arrangement and Computer Program Product for Determining an End-of-Life State of a Battery - The present disclosure relates to a method, an arrangement and a computer program product for determining an end-of-life state of a battery. It is an object of the present invention to more reliably determine an end-of-life (EOL) state of a battery even when the load of the system to be powered by the battery varies.06-20-2013
20130158912Apparatus for Measuring the State of Health of a Cell Pack - Disclosed is an apparatus for measuring and classifying a cell pack based on statistical parameters of charge of and discharge from the cell pack. The apparatus includes a control unit, a register, a database, a display, a charger and a load. The register, the database, the display, the charger and the load are connected to the control unit.06-20-2013
20130158917BATTERY ABNORMALITY PREDICTION SYSTEM - A battery abnormality prediction system includes a normal range determination unit which acquires parameter values representing the states of a plurality of unit cells (06-20-2013
20130158914Apparatus for Measuring the State of Charge of a Battery Pack via Measuring an Open Circuit Voltage - Disclosed is an apparatus for measuring the state of charge of a battery pack via measuring an open circuit voltage. The apparatus includes a voltage measurement unit electrically connected to the battery pack, a current sensor electrically connected to the battery pack, a current measurement unit electrically connected to the current sensor, and a processor electrically connected to the voltage measurement unit and the current measurement unit. The processor measures the voltage and current of the battery pack via the voltage measurement unit and the current measurement unit.06-20-2013
20130158913SYSTEM AND METHOD FOR DETERMINING CHARGING AND DISCHARGING POWER LEVELS FOR A BATTERY PACK - A system and a method for determining charging and discharging power levels for a battery pack are provided. The battery pack has an enclosure holding a battery module therein. The system includes a computer that determines a temperature correlation value based on first and second temperature values associated with the battery pack. The computer determines a third temperature value indicative of a temperature level of a first battery cell disposed adjacent to the end of a housing in the battery pack based on the first temperature value and the temperature correlation value. The computer determines a desired charging power level for the battery pack based on the third temperature value.06-20-2013
20130185007METHOD AND CONFIGURATION FOR ESTIMATING THE EFFICIENCY OF AT LEAST ONE BATTERY UNIT OF A RECHARGEABLE BATTERY - The state of charge of at least one battery unit of a rechargeable battery is initially estimated, and at least one variable of the battery unit which describes the state of health of this battery unit at a selected operating point with the aid of a model is estimated. The variable describing the state of health is an instantaneous charge capacity of the battery unit, which is estimated from the load current of the battery unit at the operating point and the reciprocal value of the derivation over time of the previously estimated state of charge of the battery unit.07-18-2013
20130185008PARAMETER ESTIMATION DEVICE USING FILTER - A parameter estimation device using a filter has a preprocessing computing means 07-18-2013
20110282604BATTERY PACK, ELECTRONIC DEVICE, AND INSPECTION METHOD OF BATTERY PACK - A battery pack includes: a chargeable and dischargeable battery; and a microcomputer that acquires information on a voltage drop across the battery in a condition equivalent to no load and stores the information therein.11-17-2011
20110313696BATTERY MONITORING SYSTEM - A battery monitoring device includes a sensor device, which is electrically connectable to an automobile battery and may be placed thereon, and which is arranged to detect an operating variable of the battery. The battery monitoring device further includes a detection circuit, which is connected via a cable connection to the sensor device; and a data processing circuit, which is connected via a potential isolation circuit to the detection circuit. The potential isolation circuit provides isolation of the potential level of the detection circuit from a potential level of the data processing circuit for direct components.12-22-2011
20120022816METHOD FOR DETERMINING A PARAMETER OF AT LEAST ONE ACCUMULATOR OF A BATTERY - A method for determining a parameter such as the resistance of at least one accumulator of a battery, comprising the steps: 01-26-2012
20120029852BATTERY MONITOR SYSTEM ATTACHED TO A VEHICLE WIRING HARNESS - A computer system that installs in the proximity of the vehicle's operator by attaching to the vehicle's wiring harness (e.g., via a power outlet in the vehicle cabin). The device, gathers data relating to the operational state of the vehicle's battery, calculates various health information of the battery from the gathered data, and provides the health and operational state of the battery to the vehicle's operator. To facilitate battery health calculations, the device receives input from a temperature sensor that is remote to the battery, such as a temperature sensor in the device's housing or in the vehicle cabin. The temperature reading can be used to approximate the temperature of the battery. The computer system can also support non-battery related functions, such as navigation, theft deterrence, etc. Algorithms utilizing battery health data over multiple load cycles to determine the health of a battery are also disclosed.02-02-2012
20120029851REMAINING CAPACITY DETECTING DEVICE AND BATTERY CONTROL IC - A battery control IC includes a remaining amount estimation computing unit. The remaining amount estimation computing unit switches, during discharging of a battery pack, a first estimating method, in which a direct current resistance is obtained from a change in a voltage value of a battery voltage and a change in a current value of a current flowing through the battery pack at a start of discharging of the battery pack and a full charge capacity of the battery pack is obtained based on information set in advance indicating a relation between the direct current resistance and the full charge capacity, and a second estimating method, in which the full charge capacity of the battery pack is estimated from a relation between an open-circuit voltage predicted from the battery voltage and a used charge amount obtained from information of the current flowing through the battery pack.02-02-2012
20130204561Device And Method For Determining A Range Of A Battery Characteristic Curve - A device for determining at least one range of a battery characteristic curve for a battery in a vehicle, having a measuring device for measuring battery parameters, and an analysis unit including a device for determining the current state of charge (SOC) of the battery from the measured battery parameters, a device for determining a shift value (VW) from the difference of a measured battery parameter and a standard value derived from a standard battery characteristic curve considering the determined state of charge (SOC), and a device for determining at least one range of a new battery characteristic curve by adding the shift value (VW) to the standard battery characteristic curve.08-08-2013
20130204560Gas Gauge Device - The present invention discloses a gas gauge device for measuring a state of charge of a battery. The gas gauge device comprises a first programmable gain amplifier (PGA), for amplifying a battery current of the battery with a first adjustable gain, to generate an amplified battery current; a first analog to digital (ADC) converter, for converting the amplified battery current into a digital amplified battery current with a first adjustable sampling rate; and a micro controller, for adjusting the first adjustable gain and the first adjustable sampling rate to measure the battery current.08-08-2013
20120084032IDENTIFYING AND AMERLIORATING A DETERIORATING CONDITION FOR BATTERY NETWORKS IN-SITU - A temperature is measured for each terminal of the battery unit. The magnitude and sign of a temperature differential is calculated from the temperatures. The temperature differential is then correlated to a deteriorating condition of the battery unit.04-05-2012

Patent applications in class Battery monitoring