The invention provides a battery equalization circuit and a battery management method. The battery equalization circuit comprises an auxiliary power supply, at least two single batteries and at leasttwo equalization loops, wherein the single batteries are in one-to-one correspondence with the equalization loops; the at least two single batteries are sequentially connected in series, and a first switch is arranged between every two adjacent single batteries; the anodes of the single batteries are connected with the positive electrodes of the corresponding equalization loops through the first ends of the second switches, the negative electrodes of the single batteries are connected with the positive electrodes of the corresponding equalization loops through the second ends of the second switches, and the negative electrodes of the single batteries are connected with the negative electrodes of the corresponding equalization loops through the third switches; the positive electrodes of theequalization loops are connected with the negative electrode of the auxiliary power supply through the third end of the second switch, and the negative electrodes of the equalization loops are connected with the positive electrode of the auxiliary power supply through the fourth switch, thereby avoiding energy equalization between single batteries through charging and discharging, reducing the charging and discharging times of the single batteries, and prolonging the service life of the batteries.

    本申请提供一种电池均衡电路及电池管理方法,该电池均衡电路包括:辅助电源、至少两个单体电池和至少两个均衡回路;其中,单体电池和均衡回路一一对应;至少两个单体电池依次串联,两个相邻的单体电池之间设置有第一开关;单体电池的正极通过第二开关的第一端与对应的均衡回路的正极连接,单体电池的负极通过第二开关的第二端与对应的均衡回路的正极连接,单体电池的负极通过第三开关与对应的均衡回路的负极连接;均衡回路的正极通过第二开关的第三端与辅助电源的负极连接,均衡回路的负极通过第四开关与辅助电源的正极连接,无需在单体电池之间通过充放电进行能量均衡,减少了单体电池充放电次数,从而增加了电池的使用寿命。


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    Title :

    Battery equalization circuit and battery management method


    Additional title:

    电池均衡电路及电池管理方法


    Contributors:
    ZHANG FANG (author) / DENG JINTAO (author) / XIE SHENGDONG (author) / WANG RUIMING (author)

    Publication date :

    2020-05-29


    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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