According to one embodiment disclosed in the present document, a battery management device includes: a voltage measurement unit that measures a voltage of each of a plurality of batteries; and a controller communicable with the voltage measuring unit, in which the controller may be configured to: control the voltage measuring unit to measure a voltage of each battery in the plurality of battery packs at a predetermined time interval; calculating a first deviation which is a pitch between a long-term fluctuation average value and a short-term fluctuation average value of a voltage of each of the plurality of batteries; calculating a second deviation which is a pitch between a long-term fluctuation average value and a short-term fluctuation average value of an average voltage of the plurality of batteries; calculating a first diagnostic deviation of each of the plurality of batteries, which is a difference between the first deviation and the second deviation; calculating a second diagnostic deviation of each of the plurality of batteries based on a reference value of the first diagnostic deviation of each of the plurality of batteries obtained by multiplying a threshold constant by a second deviation; and diagnosing an abnormality of at least one battery among the plurality of batteries based on the second diagnosis deviation of each of the plurality of batteries.
根据本文献中公开的一个实施方式,一种电池管理装置包括:电压测量单元,其测量多个电池中的各个电池的电压;以及控制器,其可以与电压测量单元通信,其中,控制器可以被配置为:控制电压测量单元以预定时间间隔测量所述多个电池组中的各个电池的电压;计算第一偏差,其是多个电池中的各个电池的电压的长期波动平均值与短期波动平均值之间的间距;计算第二偏差,其是所述多个电池的平均电压的长期波动平均值与短期波动平均值之间的间距;计算所述多个电池中的各个电池的第一诊断偏差,其是第一偏差与第二偏差之差;基于通过将阈值常数乘以第二偏差而获得的所述多个电池中的各个电池的第一诊断偏差的参考值,来计算所述多个电池中的各个电池的第二诊断偏差;以及基于所述多个电池中的各个电池的第二诊断偏差,来诊断所述多个电池当中的至少一个电池的异常。
Battery management device and operating method thereof
电池管理装置及其操作方法
11.04.2025
Patent
Elektronische Ressource
Chinesisch
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