The invention discloses a battery cell electric quantity balancing method of a battery, a battery management system and a storage medium. The method comprises the following steps: determining a target battery cell which firstly reaches a preset voltage and a full charge voltage in a charging process; obtaining a first association relationship of the relationship between the charging voltage and the capacity of the target cell; when the target battery cell reaches the full charging voltage, obtaining the charging voltage of the remaining battery cells; estimating the current to-be-charged capacity of the remaining battery cells in a first association relationship by using the charging voltage and the full charging voltage of the remaining battery cells; based on the current to-be-charged capacity of the residual battery cells, judging whether the residual battery cells meet an electric quantity balance condition or not; and if yes, carrying out electric quantity equalization on the target battery cell and the remaining battery cells. By means of the mode, electric quantity balance of the battery cells can be achieved, and therefore the consistency of the battery cells is improved.
本申请公开电池的电芯电量均衡方法、电池管理系统及存储介质。该方法包括:在充电过程中确定最先达到预设电压及满充电压的目标电芯;获取目标电芯的充电电压和容量之间的关系的第一关联关系;在目标电芯达到满充电压时获取剩余电芯的充电电压;利用剩余电芯的充电电压和满充电压在第一关联关系中估算剩余电芯的当前待充容量;基于剩余电芯的当前待充容量判断剩余电芯是否满足电量均衡条件;若满足,则对目标电芯和剩余电芯进行电量均衡。通过上述方式,本申请能够实现对电芯的电量均衡,从而提高电芯的一致性。
Battery cell electric quantity balancing method of battery, battery management system and storage medium
电池的电芯电量均衡方法、电池管理系统及存储介质
2023-12-08
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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