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    • 49. 发明授权
    • Determination and control of battery state
    • 电池状态的测定与控制
    • US5672951A
    • 1997-09-30
    • US529396
    • 1995-09-18
    • Hisashi Shiota
    • Hisashi Shiota
    • G01R31/36H01M10/44H01M10/48H02J7/00H02J7/10H01M10/46
    • G01R31/361G01R31/3662H02J7/0078H02J7/008
    • A technique for measuring battery characteristics comprises measuring a battery terminal voltage, a charge/discharge current and a charge/discharge time. The technique entails arithmetically determining an integrated power, an integrated charge quantity and an integrating time interval over a period extending from a start of a charge/discharge process to an end thereof, determining a mean terminal voltage by dividing the integrated power by the integrated charge quantity, determining a mean charge current by dividing the integrated charge quantity by the integrating time interval, determining a polarization resistance of the battery on the basis of the mean terminal voltage and the mean current by using a battery polarization resistance model, and finally determining an open-circuit voltage of the battery on the basis of the polarization resistance. The information culled from the above technique may be used to control a charge/discharge process and to predict the remaining life of the battery.
    • 用于测量电池特性的技术包括测量电池端子电压,充电/放电电流和充电/放电时间。 该技术需要在从充电/放电过程开始到其结束的一段时间内算术确定集成电力,积分电荷量和积分时间间隔,通过将积分功率除以积分电荷来确定平均端电压 数量,通过将积分电荷量除以积分时间间隔来确定平均充电电流,通过使用电池极化电阻模型,基于平均端电压和平均电流确定电池的极化电阻,最后确定 基于极化电阻的电池的开路电压。 从上述技术中剔除的信息可用于控制充电/放电过程并预测电池的剩余寿命。