The invention relates to a driving torque distribution method for a pure electric four-wheel-drive vehicle and a storage medium. The method comprises the following steps: obtaining driving state information of a current vehicle; judging whether the obtained driving state information meets a stability priority strategy or not; if so, distributing corresponding output torque to front and rear shafts of the vehicle according to a torque distribution coefficient corresponding to the longitudinal acceleration of the current vehicle; if not, judging whether the vehicle is in an urgent acceleration working condition or not; if so, distributing the corresponding output torque to the front and rear axles of the vehicle according to the actual axle loads of the front and rear axles of the current vehicle; and if not, distributing the corresponding output torques to the front and rear axles of the vehicle by adopting an economic priority strategy. According to the driving state information of the electric vehicle, the required torque of the whole vehicle is distributed through different torque distribution strategies, and organic unification of the stability, the dynamic property, the economical efficiency and the smoothness of the whole vehicle is achieved.

    本发明涉及一种纯电动四驱车驱动扭矩分配方法及存储介质,所述方法包括以下步骤:获取当前车辆的行驶状态信息;根据获取的行驶状态信息是否满足稳定性优先策略;若满足,则根据当前车辆的纵向加速度对应的扭矩分配系数为车辆的前后轴分配相应的输出扭矩;若不满足,则判断是否处于急加速工况;若是,则根据当前车辆的前后轴的实际轴荷为车辆的前后轴分配相应的输出扭矩;若不是,则采用经济优先策略为车辆的前后轴分配相应的输出扭矩。根据电动汽车的行驶状态信息,通过不同的扭矩分配策略对整车需求扭矩进行分配,实现了整车的稳定性、动力性、经济性及平顺性的有机统一。


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    Titel :

    Driving torque distribution method for pure electric four-wheel-drive vehicle and storage medium


    Weitere Titelangaben:

    一种纯电动四驱车驱动扭矩分配方法及存储介质


    Beteiligte:
    FU ZHENXING (Autor:in) / SHI QING (Autor:in) / HUANG XIAODONG (Autor:in) / YANG YUAN (Autor:in) / WANG XIAODAN (Autor:in)

    Erscheinungsdatum :

    31.12.2021


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

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



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