The invention provides a power battery equalization control method and system, an electric vehicle, equipment and a medium, and relates to the technical field of battery management. The method is applied to a control system in an active equalization system of the electric vehicle, and comprises the following steps: in a charging or discharging process of a power battery in the electric vehicle, acquiring a voltage extreme value and a reference value in voltage data of a plurality of battery cells contained in the power battery at a target moment; when the voltage extreme value and the reference value meet a preset equalization condition, taking the battery cell with the voltage extreme value as a first battery cell, generating a switch closing instruction, and sending the switch closing instruction to a control end of a first equalization switch, therefore, the energy of the first battery cell or the energy of the second battery cell is transferred between the first battery cell and the second battery cell. According to the mode, the complexity of active equalization control is reduced, and the equalization effect is further improved.

    本申请提供一种动力电池均衡控制方法、系统、电动汽车、设备及介质,涉及电池管理技术领域。该方法应用于电动汽车的主动均衡系统中的控制系统,包括:在电动汽车中的动力电池充电或放电过程中,获取动力电池包含的多个电池电芯在目标时刻的电压数据中的电压极值和参考值;在电压极值和参考值满足预设均衡条件时,将具有电压极值的电池电芯作为第一电池电芯,生成开关闭合指令,并向第一均衡开关的控制端发送开关闭合指令,以使第一电池电芯的能量或第二电池电芯的能量在第一电池电芯与第二电池电芯之间进行转移。上述方式降低了主动均衡控制的复杂度,进而提高了均衡效果。


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    Titel :

    Power battery equalization control method and system, electric vehicle, equipment and medium


    Weitere Titelangaben:

    动力电池均衡控制方法、系统、电动汽车、设备及介质


    Beteiligte:
    ZHOU YUN (Autor:in) / CHEN ANCHONG (Autor:in) / LAI QUAN (Autor:in)

    Erscheinungsdatum :

    22.08.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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