The invention provides a battery pack active equalization system, a control method and a vehicle. The battery pack active equalization system comprises: a plurality of secondary charging circuits connected with single batteries; a primary side charging circuit connected with the power supply and in electromagnetic induction connection with each secondary side charging circuit; and a controller used for obtaining the battery state of each single battery in the charging process of the battery pack, obtaining the average battery state according to the battery state of each single battery, and controlling the secondary charging circuit of the target single battery to be switched on according to the average battery state and the battery state of each single battery, wherein the target single battery is a single battery of which the battery state is lower than the average battery state. By arranging the single-primary-side multi-secondary-side charging circuit, supplementary charging is continuously carried out on the target single battery with the poor battery state in the charging process, so that the difference between the single batteries in the whole battery pack is small and tends to be consistent, and the service life of the batteries is prolonged.
本发明提供了一种电池组主动均衡系统、控制方法及车辆,其中,电池组主动均衡系统,包括:多个与单体电池连接的副边充电电路;与供电电源连接的原边充电电路,且与每一副边充电电路电磁感应连接;控制器,用于在电池组充电过程中,获取每一单体电池的电池状态,根据每一单体电池的电池状态得到平均电池状态,并根据平均电池状态以及每一单体电池的电池状态,控制目标单体电池的副边充电电路接通,其中,目标单体电池为电池状态低于平均电池状态的单体电池。通过设置单原边多副边的充电电路,在充电过程中不断对电池状态较差的目标单体电池进行补充充电,使得整个电池组中单体电池间的差异较小,且趋于一致,有利于提高电池的使用寿命。
Battery pack active equalization system, control method and vehicle
一种电池组主动均衡系统、控制方法及车辆
2021-10-01
Patent
Elektronische Ressource
Chinesisch
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