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System and method of cell block voltage analytics to improve balancing effectiveness and identify self-discharge rate
System and method of cell block voltage analytics to improve balancing effectiveness and identify self-discharge rate
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机译:电池块电压分析的系统和方法,可提高平衡效果并确定自放电率
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摘要
A battery management unit includes a cell balancing module to perform cell balancing between a cells in a battery cell stack, and a controller operable to determine, during a first charge cycle, that the first cell has reached an over-voltage threshold before the second cell, to determine, during a discharge cycle, that the first cell has reached an under-voltage threshold before the second cell, to identify the first cell as having a lower capacity than the second cell based upon the determination that the first cell reached the over-voltage threshold before the second cell and upon the determination that the first cell reached the under-voltage threshold before the second cell, and to prevent, during another charge cycle, the cell balancing module from performing cell balancing on the first cell based upon the first cell being identified as having the lower capacity than the second cell.
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