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    • 33. 发明申请
    • ADAPTIVE SLOWLY-VARYING CURRENT DETECTION
    • 适应性缓慢的电流检测
    • US20120101753A1
    • 2012-04-26
    • US12908669
    • 2010-10-20
    • Jian LinXidong TangBrian J. Koch
    • Jian LinXidong TangBrian J. Koch
    • G01R31/36
    • H01M10/48G01R31/3832
    • A system and method for determining whether an onboard estimation process, such as a recursive least squares regression process, can effectively calculate the state-of-charge of a battery. The method includes defining a current sample time and a previous sample time and measuring the battery current. The method then calculates a variation moving average of the measured current and an index of current change rate determined by averaging the absolute value of the current variation moving average using the measured current and calculated moving averages from the previous sample time. The method then determines if the current change index is greater than a predetermined threshold, and if so, the estimate of the battery state-of-charge resulting from the onboard estimation process is valid.
    • 用于确定车载估计过程(诸如递归最小二乘回归过程)的系统和方法可以有效地计算电池的充电状态。 该方法包括定义当前采样时间和先前采样时间并测量电池电流。 然后,该方法计算测量电流的变化移动平均值和通过使用测量的电流和从先前采样时间计算的移动平均值平均电流变化移动平均线的绝对值而确定的电流变化率的指标。 然后,该方法确定当前变化指数是否大于预定阈值,如果是,则由车载估计处理产生的电池状态估计是有效的。