Then membership degree of the failures is evaluated by membership degrees of the symptoms. At last, DOH(degree of healthy) of the cells was estimate by membership degrees of the failures.

• 通过综合考虑各个电池的外部特性数据的变化值与平均变化值的偏移,可以对电池的症状进行隶属度评估,进而得到相应的故障隶属度,并根据一定的评估原则得到每个电池的健康状况等级。