The invention discloses a multi-battery-pack parallel control method and system, and relates to the technical field of battery control, and the method comprises the steps: obtaining a first voltage value of a first battery pack and a second voltage value of a second battery pack; determining a master node battery pack and a slave node battery pack according to the first voltage value and the second voltage value; calculating group combining current of the slave node battery pack through the master node battery pack; acquiring continuous withstand current of the slave node battery pack; when the combination current is smaller than the continuous withstand current, the main node battery pack and the slave node battery pack are combined through the switch module, so that the main node battery pack and the slave node battery pack are connected to the whole vehicle module or the charging module; when the parallel current is larger than the continuous withstand current, the current adjusting module is connected to the master node battery pack and the slave node battery pack through the switch module so as to reduce the parallel current to be smaller than the continuous withstand current. The safety of the battery pack in the parallel connection process can be improved.

    本申请公开了一种多电池组并联控制方法及系统,涉及电池控制技术领域,包括:获取第一电池组的第一电压值、第二电池组的第二电压值;根据第一电压值、第二电压值的大小确定主节点电池组、从节点电池组;通过主节点电池组计算从节点电池组的并组电流;获取从节点电池组的持续耐受电流;当并组电流小于持续耐受电流,通过开关模块将主节点电池组、从节点电池组并组,以使主节点电池组、从节点电池组接入整车模块或充电模块;当并组电流大于持续耐受电流,通过开关模块将电流调节模块接入主节点电池组、从节点电池组,以降低并组电流至小于持续耐受电流。本申请能够提高电池组并联过程中的安全性。


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    Title :

    Multi-battery-pack parallel control method and system


    Additional title:

    多电池组并联控制方法及系统


    Contributors:
    XU TONGHUI (author) / CHEN BINBIN (author)

    Publication date :

    2023-11-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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