The invention discloses a battery inconsistency control method and system, and belongs to the technical field of circuit design. The method comprises the following steps: calculating the number N of single battery cells in the battery system and the residual electric quantity of each single battery cell; single-pole double-throw switches corresponding to single bodies with residual electric quantity/terminal voltage not meeting requirements are judged to jump to bypass contacts or single-pole double-throw switches corresponding to single bodies with residual electric quantity/terminal voltage meeting requirements are judged to jump to series contacts through active bypass According to the invention, inconsistent battery cells in the series battery system are removed, and the remaining battery cells in the series loop can be continuously charged or discharged, so that the potential of each single battery cell in the battery system can be brought into full play to ensure that the battery system can be charged with as much electric energy as possible in a charging state or can release as much electric energy as possible in a discharging state; and the available energy of the grouped battery system is close to the total energy as much as possible.

    本发明的一种电池不一致性控制方法及系统,属于电路设计技术领域。方法为计算电池系统中单体电芯的数量N以及每颗单体电芯的剩余电量;判断不同电芯间剩余电量差异并控制剩余电量/端电压不满足需求的单体对应的单刀双掷开关跳变到旁路触点或判断不同电芯间剩余电量差异并控制剩余电量/端电压满足需求的单体对应的单刀双掷开关跳回到串联触点通过主动旁路掉串联电池系统中不一致的电芯,让串联回路中剩下的电芯还能继续充电或放电,能充分发挥电池系统中每个单体电芯的潜能以保证电池系统在充电状态下能充进去尽可能多的电能或电池系统在放电状态下能释放出尽可能多的电能,保证电池系统成组后的可用能量最大可能地逼近于总能量。


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    Title :

    Battery inconsistency control method and system


    Additional title:

    一种电池不一致性控制方法及系统


    Contributors:
    ZHANG RUI (author) / DAI WEIBIN (author) / QIU DEBO (author) / CHEN FANGMING (author)

    Publication date :

    2023-06-02


    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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