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Apparatus and method for managing battery pack based on retrogression degree of secondary electric cell and battery pack using it
Apparatus and method for managing battery pack based on retrogression degree of secondary electric cell and battery pack using it
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机译:基于二次电池的退化程度来管理电池组的设备和方法以及使用该设备和方法的电池组
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摘要
The present invention discloses an apparatus for managing a battery pack by reflecting a degradation degree of secondary cells, the apparatus comprising: a voltage sensing unit for measuring the voltages of a plurality of secondary cells constituting the battery pack; a first monitoring unit for storing a first voltage value being the voltage value that each of the plurality of secondary cells individually represents at the time when all voltages of the plurality of secondary cells are not lower than a minimum reference voltage value in a charging cycle; a second monitoring unit for storing a second voltage value being the voltage value that each of the plurality of secondary cells individually represents at the time when the voltage of one cell among the plurality of secondary cells is not lower than a maximum reference voltage value in the charging cycle; and a controlling unit for calculating a disparate voltage value being the difference between the first voltage value and the second voltage value, selecting the secondary cell having a maximum disparate voltage value among the calculated disparate voltage values as a degraded cell in the current charging cycle, and updating the information on the degraded cell.
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