The invention discloses a power battery pack equalization method and a battery management system, and the method comprises the steps: obtaining the battery parameters of a power battery pack, determining the current state of the power battery pack, and carrying out the equalization of the power battery pack when the power battery pack is in a reserved charging state; when the power battery pack is in a static non-reservation state or a charging state, adopting a first equalization strategy to passively equalize the power battery pack, when the power battery pack is in a static non-reservation state or a charging state, adopting a second equalization strategy to passively equalize the power battery pack, and when the power battery pack is in a discharging state; and a third equalization strategy is adopted to actively equalize the power battery pack according to the battery parameters, so that the batteries can keep good capacity consistency before the next state, and the endurance mileage of the automobile is improved.
本发明公开了一种动力电池组的均衡方法及电池管理系统,其中,动力电池组的均衡方法通过获取动力电池组的电池参数,并确定动力电池组的当前状态,在动力电池组处于预约充电状态时,根据电池参数采取第一均衡策略对动力电池组进行被动均衡,在动力电池组处于静止无预约状态或充电状态时,根据电池参数采取第二均衡策略对动力电池组进行被动均衡,在动力电池组处于放电状态时,根据电池参数采取第三均衡策略对动力电池组进行主动均衡,从而使电池在下一个状态前保持较好的容量一致性,以提高提高汽车的续航里程。
Balancing method of power battery pack and battery management system
动力电池组的均衡方法和电池管理系统
2022-06-21
Patent
Elektronische Ressource
Chinesisch
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