The invention discloses an equalization method of a power battery pack, an automobile and a medium, and the equalization method of the power battery pack comprises the steps: charging the power battery pack, and obtaining the single voltage and inflection point capacity of each single battery of the power battery pack; after the charging is finished, judging whether the charging is full or not based on the monomer voltage; if the current charging is full charging, balancing the single batteries according to a full charging voltage difference; and if the current charging is not fully charged, balancing the single batteries according to the inflection point capacity of each single battery. According to the method, time waste in an ultra-long conversion process caused by switching between top alignment and inflection point alignment between frequent full charge and frequent non-full charge is avoided, the balanced alignment targets for two types of user habits of frequent full charge and intermittent full charge are unified, and it is ensured that the series battery pack exerts the maximum total capacity under top alignment for a long time; and the maximum energy application of the battery pack is realized.

    本申请公开了一种动力电池组的均衡方法、汽车及介质,其中,动力电池组的均衡方法,包括:对动力电池组进行充电并获取所述动力电池组的各单体电池的单体电压和拐点容量;充电结束后,基于所述单体电压判断本次充电是否满充;若本次充电为满充,则根据满充电压差对所述单体电池进行均衡;若本次充电非满充,则根据各所述单体电池的拐点容量对所述单体电池进行均衡。避免了经常满充和经常不满充在顶端对齐和拐点对齐之间的切换造成的超长转换过程时间浪费,统一了对于经常满充和间歇性满充两类用户习惯的均衡对齐目标,保证了串联电池组长期在顶端对齐下发挥最大总容量,实现了电池组的最大能量应用。


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    Title :

    Balancing method of power battery pack, automobile and medium


    Additional title:

    一种动力电池组的均衡方法、汽车及介质


    Contributors:
    DENG LINWANG (author) / FENG TIANYU (author) / LI XIAOQIAN (author)

    Publication date :

    2022-07-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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