Storage battery voltage control apparatus
September 10, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesCharging system and method for multicell storage batteries System and method for charging electrochemical cells in series Circuit for protecting storage cells Battery overcharge protection system Device for balancing parallel strings Arrangement and method for operating an electrochemical storage device Isolated power supply system and method Multiple voltage battery charge balancing and load protecting device Battery equalization circuit for a dual voltage charging system Cell monitor and control unit for multicell battery InventorsAssigneeApplicationNo. 926698 filed on 09/10/1997US Classes:307/10.6, Ignition or starter circuits320/116, SERIALLY CONNECTED BATTERIES OR CELLS320/134With battery or cell condition monitoring (e.g., for protection from overcharging, heating, etc.)ExaminersPrimary: Elms, RichardAttorney, Agent or FirmForeign Patent References
International ClassB60R 022/00Foreign Application Priority Data1996-09-10 JPAbstractEight storage battery cells 111 to 118 making up a storage battery cell group 2 can be connected selectively to a voltage-correcting storage battery 12 through nine cell change-over switches 131 to 139, four polarity-inverting switches 141 to 144 and a current-limiting resistor 15. When the voltages of two or more of the storage battery cells 111 to 118 are different, the voltages of each of the storage battery cells 111 to 118 can be equalized by then transferring the charge from a storage battery cell high in voltage to the voltage-correcting storage battery 12 and by transferring the charge of that voltage-correcting storage battery 12 to a storage battery cell low in voltage. As a result, the voltage difference due to the performance variations among the individual storage battery cells 111 to 118 can be obviated thereby to increase the working voltage range of the storage battery cell group 2 as a whole.Field of SearchBypassable battery cellSwitchable cells (e.g., for voltage regulation, etc.) Having variable number of cells or batteries in series With discharge of cells or batteries SERIALLY CONNECTED BATTERIES OR CELLS With generator charging source Switchable to parallel connection With individual charging of plural batteries or cells With battery or cell condition monitoring (e.g., for protection from overcharging, heating, etc.) Detection of current and voltage amplitude Multi-rate charging (e.g., plural charge rates before a maintenance charge, etc.) Detection of current and voltage amplitude VEHICLE MOUNTED SYSTEMS Automobile Ignition or starter circuits Battery protection Lighting circuits PLURAL SUPPLY CIRCUITS OR SOURCES Substitute or emergency source Load current division Plural substitute sources Storage battery or accumulator Series-connected sources Connecting or disconnecting Condition responsive Attainment of voltage, frequency or phase relationship Parallel-charge, series-discharge (e.g., voltage doublers) Electrical Power or energy Voltage Switch actuation Power circuit controlled With time delay or retardation means Electric With means on vehicle for generating power for the electric motor With electronic devices (logic gates, semi-conductors, vacuum tubes, etc.) in control circuit | |
