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    • 4. 发明授权
    • Battery power monitoring apparatus for vehicle
    • 车载电池电量监控装置
    • US5652069A
    • 1997-07-29
    • US566662
    • 1995-12-04
    • Shoji SakaiMitsuo InagakiSadahisa OnimaruHironori Asa
    • Shoji SakaiMitsuo InagakiSadahisa OnimaruHironori Asa
    • G01R31/36B60L3/00B60L11/18G01R31/00H01M10/48H02J7/00
    • G01R31/3648G01R31/006G01R31/3624Y10S320/21
    • A battery power monitoring apparatus for use in an electric automobile is provided. The battery power monitoring apparatus determines the amount of available reserve electric power remaining in a storage battery based on electric power discharged from the storage battery to an electric motor and a battery characteristic stored in a memory, representing a relation between a voltage level at which a given level of current flows from the storage battery and the then discharged electric power. The battery characteristic is updated based on the latest detected voltage of the storage battery and current flowing from the storage battery. The battery power monitoring apparatus determines that charge polarization has occurred when a voltage level of the storage battery from which the given level of current flows is increased, and prohibits the updating of the battery characteristic. With this operation, the amount of available electric power is calculated correctly even under the influence of charge polarization.
    • 提供了一种用于电动汽车的电池电力监视装置。 电池电力监视装置基于从蓄电池放电到电动机的电力和存储在存储器中的电池特性,确定蓄电池中剩余的可用备用电力的量,其表示电池电压 给定电流从蓄电池流出的电流和随后的放电电力。 基于蓄电池的最新检测电压和从蓄电池流出的电流来更新电池特性。 电池电力监视装置确定当给定电流流过的蓄电池的电压电平增加时,发生充电极化,并且禁止更新电池特性。 通过这种操作,即使在充电极化的影响下也可以正确地计算可用电力的量。