The invention discloses a battery electric vehicle electric quantity management control method and system and a battery electric vehicle, and belongs to the technical field of battery electric vehicles, and the method comprises the steps that a battery management system (BMS) calculates the maximum power P1 allowed to be output to a motor controller (MCU) by a battery and feeds back the maximum power P1 to a vehicle control unit (VCU); the battery management system (BMS) judges whether the battery remaining capacity state (SOC) is smaller than a preset battery remaining capacity state (SOC) threshold value or not, if yes, information that the battery remaining capacity state (SOC) is smaller than the preset battery remaining capacity state (SOC) threshold value is fed back to the vehicle control unit (VCU), and the vehicle control unit (VCU) limits the maximum vehicle speed; a vehicle control unit (VCU) judges the relation between the limited maximum vehicle speed and the actual vehicle speed and controls the power output by a battery to a motor control unit (MCU) according to the judgment result. According to the invention, the cruising ability of the whole pure electric vehicle can be improved.

    本发明公开了一种纯电动汽车电量管理控制方法、系统及纯电动汽车,属于纯电动汽车技术领域,所述方法包括:电池管理系统(BMS)计算允许电池输出至电机控制器(MCU)的最大功率P1并反馈至整车控制器(VCU);电池管理系统(BMS)判断电池剩余电量状态(SOC)是否小于预设电池剩余电量状态(SOC)阈值,若是,则反馈电池剩余电量状态(SOC)小于预设电池剩余电量状态(SOC)阈值的信息至整车控制器(VCU),整车控制器(VCU)限制最高车速;整车控制器(VCU)判断限制最高车速与实际车速之间的关系,并根据判断结果控制电池输出至电机控制器(MCU)的功率。通过本发明能够提升纯电动汽车整车的续航能力。


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    Title :

    Electric quantity management control method and system for pure electric vehicle and pure electric vehicle


    Additional title:

    一种纯电动汽车电量管理控制方法、系统及纯电动汽车


    Contributors:
    YANG DONG (author)

    Publication date :

    2025-03-21


    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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