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6107779 |
Apparatus for detecting remaining capacity of battery
When a battery as an energy source for propelling an electric vehicle is repeatedly charged and discharged, the calculated remaining capacity of the battery tends to suffer a large error due to an...
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6107780 |
Method and an arrangement relating to temperature sensing in electric circuitry
It is shown a method and an apparatus for determining a temperature of a battery pack connected via a single communication line to an electric device. The battery pack and electric device both...
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6104166 |
Method and device for detecting a state of charge of a battery assembly, and battery assembly charge and discharge control device
Variation of the charged amount among battery blocks composing a battery assembly is detected. By subtracting the detected value of the variation from the width between the upper limit value and...
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6101611 |
Portable terminal having controller for judging remaining capacity of a battery and for controlling the supply of power in response to a drive request and method related to same
When a judgment request is output, a judging means outputs a remaining battery capacity calculation request F, in response to which a remaining capacity calculating means outputs a request for...
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6100666 |
Method for calibrating rechargeable battery capacity
A smart battery provides electrical power and reports remaining capacity of the battery. A disparity between the calculated remaining capacity and the actual capacity of the smart battery is...
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6097175 |
Method for charging and discharging a smart battery of an electronic equipment
A system and process of properly controlling the charging and discharging a smart battery of an electronic equipment even if data information of the smart battery is not exact. The process is...
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6097176 |
Method for managing back-up power source
A method for managing a back-up power source capable of maintaining the discharge capacity of a nickel metal-hydride storage battery for a long-term at a low cost, and is suitable for the...
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6094033 |
Battery state of charge detector with rapid charging capability and method
A battery state of charge (SOC) detector for rapid charging and method each provide an efficient means for formatting, charging, and recharging batteries of various types and ratings. The detector...
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6094030 |
Resistance and charging monitor within a standby battery bank
Apparatus and method are provided for measuring the series resistance of each individual cell of a battery bank for establishing the readiness of the batteries. The invention comprises a switch in...
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6094031 |
Battery condition-detecting apparatus and battery condition-detecting unit using an optical signal
The battery condition such as the voltage of individual batteries for constructing a battery set is intended to be measured by using a simple system. Further, it is also intended to save the...
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6091227 |
Process and apparatus for charging lithium cells or the like
A process for charging one or more lithium containing electrochemical cells which exhibit a plurality of characteristics with respect to time while either being charged with or while discharging...
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6091230 |
Voltage recovery method for a zinc-air battery
A method of recovering and restoring the voltage in a zinc-air battery that has dropped below a first threshold. The method includes the steps of decoupling essentially all loads from the zinc-air...
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6091228 |
Control system for, in the presence of a varying system load, establishing generator current to maintain a particular battery charge state
A controller for a hybrid electric system such as a hybrid electric vehicle includes a load, a battery, and a controllable source of auxiliary electricity. The state of charge (SOC) of the battery...
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6087808 |
System and method for accurately determining remaining battery life
A system for providing an accurate indication of the remaining life of a battery. The system includes a first circuit that provides a control signal. A second circuit employs an internal resistance...
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6084380 |
Conforming intelligent battery label
A thin, substantially planar intelligent battery label for attachment to an exterior surface of a standard battery pack to form an intelligent battery pack having dimensions substantially the same...
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6081097 |
Method for charging lithium secondary battery
A method for charging a secondary battery is disclosed. The method comprises the steps of detecting an impedance of the battery; charging the battery with a substantially constant first current...
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6078871 |
Method of displaying a status condition of a battery
A method of displaying a status condition of a smart battery being charged by a smart battery charger. The method includes: transmitting data from the smart battery to a computer, wherein the smart...
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6078164 |
Portable electronic appliance
A portable electronic appliance, such as a portable computer, includes a battery receiving room, disposed within the main body, and a switching device for allowing a user to check the battery...
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6066899 |
Resetable battery drain limitation circuit with complementary dual voltage setpoints
A battery drain limitation circuit for use in engine powered vehicles and equipment which rely upon a battery to start the engine and also to operate accessories. When the engine is not running,...
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6064180 |
Method and apparatus for determining battery state-of-charge using neural network architecture
A neural network characterized by a minimal architecture suitable for implementation in conventional microprocessor battery pack monitoring hardware includes linear and non-linear processing...
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6064181 |
Method for detecting fully-charged state of rechargeable battery
The difference voltage between the terminal voltage VB of a rechargeable battery BAT and a reference voltage Vz1 is amplified at an initial gain, thereby reducing an amplified voltage value S12....
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6064182 |
Battery pack, battery remaining capacity detection method, and application device driven with battery pack as power source
A capacity detection method for use with a secondary battery is provided which is capable of accurately detecting capacity by a voltage method by taking into consideration the polarization...
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6064183 |
Device detecting the amount of charge remaining in a battery
When an electronic still camera in which a value of a voltage from a battery 2 is compared with reference values in a heavily loaded condition, i.e. with an LCD monitor 21 operated, to detect the...
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6060862 |
Rechargeable electronic apparatus
A electrical-generating type of electronic apparatus, such as a rechargeable electronic watch capable of allowing the user to easily verify the detection of the charge capacity of the battery is...
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6051956 |
Rechargeable battery pack with pre-end signal output terminal and electronic device containing rechargeable battery pack
When overdischarging or overcurrent of a rechargeable battery pack is detected, the output voltage current and output current between VDD and VSS of the pack become zero. In this case, a device, or...
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6051957 |
Battery pack having a state of charge indicator
A battery pack for a portable electronic device includes a case for carrying a battery. The case supports a charge sensing circuit carried by the case, the charge sensing circuit producing a...
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6049193 |
Method and device for executing a battery auto-learning
A method and device for executing battery auto-learning applied to a portable data processor with a rechargeable battery and a current gauge is disclosed. The device includes a charging device, a...
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6046574 |
Battery dropout correction for battery monitoring in mobile unit
A mobile electronic device can operate in multiple modes, each at a respective current load. Monitoring a battery in such a mobile device includes acquiring a sensed battery voltage during a...
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6045941 |
Method to determine the state of charge and remaining life of lithium batteries used in oilfield services applications
The present invention relates to a new method of constructing and interrogating electrochemical cells, especially those having lithium thionyl chloride (Li/SOCl 2 ) chemistry, that permits rapid...
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6043629 |
Modular control electronics for batteries
A power system includes at least two battery cell modules. Each battery cell module has a lithium-ion battery cell, and a battery cell controller operably connected to the lithium-ion battery to...
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6037750 |
Battery pack controller
A battery pack having a battery pack controller that combines the functions of a battery pack protection circuit, battery charger, current and voltage regulator, and a data monitor circuit. In one...
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6037749 |
Battery monitor
A battery monitoring system includes a circuit for use with a battery which is one of a defined (quantified re volts supplied at known current loads at known discharge levels) type of battery such...
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6031302 |
Battery management system with current measurement across on-resistance of semiconductor cutout switch
An improved battery management circuit and system are disclosed. The improved battery management system relates to the type having at least one battery cell that is connected in a circuit with...
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6031354 |
On-line battery management and monitoring system and method
An on-line battery management and monitoring system and method for monitoring a plurality of battery cells identifies and computes individual cell and battery bank operating parameters. The system...
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6025698 |
Smart battery charging system, charging method therefor and power supply system for portable computer using the same
The present invention relates to a smart battery charging system, a charging method therefor and a power supply system for portable computer using the same that executes various charging operations...
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6023150 |
Optimized method for determining remaining life cycles in a rechargeable battery
A method (200) of estimating existing and/or remaining life cycles of a battery pack (102) having an internal battery cell (104) and battery pack circuitry (110) is based on determining an...
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6014014 |
State-of-charge-measurable batteries
A storage device allows the state of charge of a main battery to be determined by measuring the state of charge of a dummy battery. The storage device may provide power to an electronic appliance...
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6014012 |
Apparatus for managing a battery unit having storage batteries
The voltages V of storage batteries Sa, Sb, . . . Sn are detected, and the voltage E of the battery unit 10 is detected. A defect in each storage battery is detected in accordance with the voltage...
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6011379 |
Method for determining state-of-charge using an intelligent system
A method for determining state of charge (SOC) of an electrochemical device using fuzzy logic (i.e., an intelligent system) is presented. State of charge of an electrochemical device is determined...
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6011380 |
Refreshing charge control method and apparatus to extend the life of batteries
A method and apparatus for charging a battery which is operable to normally charge the battery at a first state of charge setting, to determine when the battery has been undercharged a...
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6008620 |
Battery charging device, method for charging battery pack and battery pack
There is disclosed a battery charging device for charging a battery pack having a battery cell, the battery pack being capable of storing an information for a maximum charging current and a maximum...
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6008626 |
Apparatus for preventing deterioration of lithium secondary battery
When a battery with series-connected lithium secondary cells is charged to a high voltage, the capacity of the battery is prevented from being irreversibly deteriorated. If a battery current...
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5998970 |
Battery charging operation and a detection of a fully charged condition of the charged battery
A microcomputer performs a total of 100 sampling actions during a 1 sec sampling period for obtaining a plurality of battery voltage data V. In each sampling period, a minimum value υmin and a...
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5998969 |
Apparatus for regulating state of charge of cells of battery set
There is disclosed an apparatus for precisely regulating, with a simple structure, a state of charge of each of cells constituting a battery set. In the apparatus, a detection circuit, a plurality...
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5998971 |
Apparatus and method for coulometric metering of battery state of charge
The apparatus for metering the state of charge of a battery has a battery current sensor providing a voltage signal dependent on a current flowing into or out of the battery, an integrator for...
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5994876 |
Battery capacity measurement circuit
An electronic circuit and a method for accurately measuring intermittent current pulses supplied by a storage battery to energize a load. In the preferred embodiment, an analog integrator...
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5994878 |
Method and apparatus for charging a rechargeable battery
In a system and method for charging a rechargeable battery having a protection circuit, the rechargeable battery operates according to a model that includes an ideal battery and an internal...
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5994877 |
Method for detecting working condition of non-aqueous electrolyte secondary batteries
The present invention provides methods for detecting a working condition of a non-aqueous electrolyte secondary battery which allow easy and accurate determination of the degree of degradation and...
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5994875 |
Battery charging apparatus and method with charging mode convertible function
A battery charging apparatus for use with batteries that require charging in a constant current mode and/or constant voltage mode. The charging apparatus includes a constant current charging...
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5990662 |
Nickel battery charging method and apparatus
Raising the charging acceptability of nickel battery. The setting of the initial SOC (state of charge) of hybrid electric vehicle battery to X% (for example 50%) is performed by two steps. The...
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