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7598712 |
Method and apparatus for real-time life estimation of an electric energy storage device
Sate-of-life for an electrical energy storage device is predictively determined based on electrical current, state-of-charge, and temperature of the electrical energy storage device during active...
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7593823 |
Method and device for determining state of battery, and battery power supply system therewith
Coefficients A and B are calculated from the measured temperature and the measured state of charge. Next, a response voltage Vc is calculated by substituting the measured internal impedance X into...
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7589534 |
Method and apparatus for detecting cell voltage of battery pack
Disclosed is a method and apparatus for detecting a cell voltage of a battery pack. The method comprises the steps of storing an impedance of the conductive wire from a part connected to a voltage...
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7567085 |
Diagnosis for expected life of emergency power apparatus
An emergency power diagnosis system measures the exact value of impedance voltage (Vis) from an AC actual waveform (V SM ) includes circuits and software operable to measure the effective...
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7550946 |
Method and apparatus for real-time life estimation of an electric energy storage device in a hybrid electric vehicle
A hybrid vehicular powertrain includes an electrical energy storage device. State-of-life for the electrical energy storage device is predictively determined based on electrical current,...
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7541814 |
Method and device for determining the charge of a battery
A method and device for determining the charge of a battery, characterized in that a gain crossover frequency (f ± ) for an impedance of the battery excited by an alternating current signal is...
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7518375 |
Method of estimating maximum output of battery for hybrid electric vehicle
Disclosed is a method of estimating a maximum output of a battery for a hybrid electric vehicle (HEV). The method comprises extracting maximum charge/discharge outputs of the battery depending on a...
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7489107 |
Optimal battery charging for damage mitigation
A system and method for charging and thus extending the life of an electrical storage device is disclosed. The system provides for developing an essentialized cell model structure of the electrical...
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7486079 |
Available input-output power estimating device for secondary battery
An available input-output power estimating device for a secondary battery includes a parameter estimating section substituting a measured current value I and a measured voltage value V into an...
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7444192 |
Reactive replenishable device management
Reactive replenishable device management comprises receiving device measurement data from at least one device, updating one or more device usage profiles associated with the at least one device,...
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7423408 |
Monitoring device and method for determining at least one characteristic variable for the state of a battery
A method for determining at least one characteristic variable for the state of a battery includes: (a) determining the charge throughput of the battery per time step; having, (b) determining a...
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7420374 |
Battery with remaining electrical power display function and method of the same
This invention provides an electronic device that has a battery with a power storage unit and a display module, a power detector and a display control module. The power storage unit is for storing...
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7411515 |
Remote control with low battery indication
The invention is a method and remote control apparatus for controlling an electronic device that is capable of indicating a low battery state without the need for cooperation with the electronic...
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7405571 |
Methods and apparatuses for determining battery capacity
Methods and apparatuses for determining a battery capacity are described. According to one embodiment, an exemplary method includes generating virtual calibration data of the battery based on one...
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7394394 |
Battery monitor with wireless remote communication
An apparatus and method for monitoring at least one battery condition. A ac signal is applied to a battery. A difference between a signal output from the battery and a threshold determines a...
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7382270 |
Method and apparatus for communication between an electronic device and a connected battery
An apparatus supporting both identification of a battery type and communications over an interface between a battery and an electronic device is disclosed. The electronic device includes a...
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7319333 |
Power control unit
A tracked vehicle has a power control apparatus for controlling charging and discharging of a plurality of storage devices. A voltage measuring device measures voltages of the respective storage...
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7253631 |
Method of determining the impedance of an electrochemical system
The invention relates to a method of determining the complex impedance Z(f m ) of a non-steady electrochemical system, comprising the following steps consisting in: bringing the system to a...
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7239147 |
Method and device for inspecting secondary battery precursor and method for manufacturing secondary battery using the inspection method
A method for testing a precursor of a secondary cell with high reliability and high efficiency to judge the precursor to be acceptable or defective. The current flowing when a test voltage is...
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7236893 |
Arrangement for voltage supply to several users and controllers for a on-board network comprising at least two energy stores
An arrangement for supplying voltage to a number of loads for example, in a vehicle includes a vehicle power supply system ( 6 ) which has at least two energy stores. A first energy store is...
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7212011 |
Capacitor deterioration judgment method
A method for determining the deterioration of a capacitor that increases the measurement accuracy to have an improved reliability is disclosed. In this method for determining the deterioration of a...
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7212006 |
Method and apparatus for monitoring the condition of a battery by measuring its internal resistance
The method comprises coupling an external load having a predetermined resistance directly in series with the battery, conducting a power transistor to supply a transient large current to the...
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7205746 |
Battery cover assembly having integrated battery condition monitoring
A battery cover assembly having integrated battery condition monitoring for measuring electrical current passing to and from a battery post, including an electrically conductive collar for...
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7199537 |
Voltage converter control apparatus, and method
By using a target voltage Vc* of a capacitor connected to the output side of a DC/DC converter and a voltage Vb of a battery connected to the input side of the DC/DC converter, a duty ratio D as a...
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7190171 |
Detecting method and detecting apparatus for detecting internal of rechargeable battery, rechargeable battery pack having said detecting apparatus therein, apparatus having said detecting apparatus therein, program in which said detecting method is incorporated, and medium in which said program is stored
A detecting method for detecting internal resistance of an inspective rechargeable battery when said inspective rechargeable battery is charged by the constant current-constant voltage charging...
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7148708 |
Probe assembly for minimizing excitation pick-up voltages
A probe assembly for use with a battery impedance meter which minimizes excitation pick-up voltages by routing the wires from the meter to the battery cell terminals without forming a loop within a...
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7098665 |
Method for prediction of the internal resistance of an energy storage battery, and a monitoring device for energy storage batteries
A method for predicting the internal resistance of an energy storage battery in assumed environmental and battery state conditions includes subdividing the internal resistance into a first...
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7095237 |
Method of grouping single cells of power sources to build optimal packs using parameters obtained by analysis of impedance spectrum
A method for selecting unit cells to make an optimal battery pack improves the performance of the battery pack with primary or secondary batteries connected to one another in series, in parallel,...
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7081761 |
Ultracapacitor useful life prediction
Methods and apparatus are provided for projecting the useful life Y proj of an ultracapacitor undergoing at least one ON period after an OFF period. The apparatus comprises sensors coupled to the...
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7079038 |
Method and apparatus for communication between an electronic device and a connected battery
An apparatus supporting both identification of a battery type and communications over an interface between a battery and an electronic device is disclosed. The electronic device includes a...
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7062390 |
Method for evaluating capacity of secondary battery using mathematical calculation of specific resistance components of equivalent circuit model fitted from impedance spectrum
The present invention relates to a method for evaluating an initial capacity of secondary batteries and, more specifically, to a method for evaluating an initial capacity of secondary batteries...
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7061247 |
Electric power generating system for a vehicle
A power generating system for a vehicle is configured to include a power generator, a voltage control device which controls an output voltage of the power generator, a battery which is charged by...
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7039534 |
Charging monitoring systems
An electronic system for the continuous monitoring of voltage charge within the electrical system of a motor vehicle having an electrical generation source and a secondary electrochemical cell or...
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7009401 |
Battery apparatus and method for monitoring battery state of a secondary battery
Motor generator (MG) is controlled via motor controller by MG control processor of CPU, so that voltage and current of battery is detected while changing frequency of state detection current...
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6931332 |
Method and system for testing battery connectivity
A method for testing battery connectivity in a battery-backed up system, the method includes inducing a step increase in a battery bus voltage, and monitoring a magnitude of a corresponding current...
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6922058 |
Method for determining the internal impedance of a battery cell in a string of serially connected battery cells
A method for determining the internal impedance of each battery cell within a system including at least one parallel string of serially connected battery cells without disconnecting the battery...
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6788069 |
Method for calculating the parameters of the power battery of an electric motor vehicle
The invention relates to a method for determining at least one operating parameter of the power battery of a vehicle having an electric traction motor. The battery parameter includes at least one...
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6788068 |
Method and device for measuring pure resistance of on-vehicle battery by periodically measuring a discharge current and terminal voltage while a rush current flows into a constant load
A discharge current and terminal voltage of the battery are periodically measured while a rush current flows into a predetermined constant load of the loads. The rush current first monotonically...
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6765389 |
Method of computing AC impedance of an energy system
An energy system is formed of a plurality of battery cells, and has an application associated therewith that draws power from the energy system. As the application is being used, voltage and...
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6762610 |
Device and method for evaluating battery can coatings
The electrical resistance aging properties of a coating intended for use on a base material in a primary alkaline cell battery are be tested by manufacturing at least one test device, measuring a...
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6696818 |
Method and unit for computing charging efficiency and charged electrical quantity of battery
A charging efficiency, which is a ratio of an electrical quantity charged in a battery as an electromotive force to a total electrical quantity supplied to the battery, is computed at a plurality...
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6691049 |
Method and apparatus to detect that the battery gauge is out of calibration
A laptop computer system comprising an apparatus and related method for monitoring a battery gauge of a laptop computer and notifying the computer system user if the battery gauge is out of...
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6677759 |
Method and apparatus for high-voltage battery array monitoring sensors network
A battery-monitoring system in accordance with the principles of the present invention includes one or more cell sensors modules linked to a battery sensor module via a data interface. In turn, the...
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6674287 |
Method for grouping unit cells using pattern matching technology of impedance spectrum
A method for grouping unit cells of a similar impedance spectrum uses pattern matching technology to optimize the performance of a battery pack made of primary or secondary batteries as the unit...
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6653817 |
State-of-charge detection device for a battery
A method and apparatus for improving estimation of battery impedance when determining the state of charge of a battery including injecting a wide spectrum signal continuously across a battery when...
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6618681 |
Method and apparatus for predicting the available energy of a battery
A method of predicting by non-invasive testing the available energy of a battery at any state of charge by acquiring data of the parameters of internal resistance (IR), open circuit voltage (OCV)...
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6538449 |
Battery life estimation
Battery life estimation can be performed by using an algorithm and parameter values for the algorithm, scaled according to the type, e.g. capacity and chemistry, of the battery actually being used....
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6529840 |
Device for estimating the state of charge of a battery
The invention relates to a device ( 1 ) for estimating the state of charge of a rechargeable battery (BAT) by means of a measuring circuit (MES). This measuring circuit has at least two initial...
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6519538 |
Method for predicting stability characteristics of power supplies
A method for determining the effect of load impedance on the magnitude and phase of loop gain of a power converter apparatus to aid in predicting stability of the converter apparatus under various...
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6518735 |
Method and apparatus for measuring pure resistance of in-vehicle battery
In an apparatus for measuring a pure resistance of an in-vehicle battery, a terminal voltage and a discharging current of the battery are measured when the discharging current flows from the...
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