The invention provides a battery pack charging control method and a discharging control method, and the method comprises the steps: taking the lowest voltage as a reference standard, selecting a battery branch with a lower voltage for preferential charging in the charging process of a battery pack, calculating the voltage difference between the battery branch with the lowest voltage and other to-be-charged battery branches in real time, setting proper conditions according to the foreseeable actual voltage change condition when the battery enters the charging state, and charging the to-be-charged battery branch meeting the conditions; in the discharging process, using the highest voltage as a reference standard, selecting the battery branch with the higher voltage for preferential discharging, calculating the voltage difference between the battery branch with the highest voltage and other battery branches to be discharged in real time in the discharging process, and according to the predictable actual voltage change condition in the discharging state, setting proper conditions, and discharging the to-be-discharged battery branches meeting the conditions, so that the voltage difference between the battery branches is reduced, the voltage dynamic balance between the battery branches is realized, and the stability and the safety of the battery pack are effectively improved.

    本发明提供一种电池组充电控制方法和放电控制方法,在电池组充电过程中,以最低电压作为参考标准选取较低电压的电池支路进行优先充电,并实时计算最低电压的电池支路与其他待充电的电池支路之间的压差,根据进入充电状态时可预见的电压实际变化情况,设定适当的条件,并对符合条件的待充电电池支路进行充电;在放电过程中,以最高电压作为参考标准选取具有较高电压的电池支路进行优先放电,并在放电过程中实时计算最高电压的电池支路与其他待放电的电池支路之间的压差,根据进入放电状态时可预见的电压实际变化情况,设定适当的条件,并对符合条件的待放电电池支路进行放电,减小各电池支路之间的压差,实现各电池支路之间的电压动态平衡,有效提高电池组的稳定性和安全性。


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    Title :

    Battery pack charging control method and discharging control method


    Additional title:

    一种电池组充电控制方法和放电控制方法


    Contributors:
    YAO ZHENFEI (author) / WU SHENGXIAN (author) / XU WENHAO (author)

    Publication date :

    2021-10-29


    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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