The invention discloses a four-wheel drive torque distribution method for a new energy automobile, and the method comprises the steps: controlling the switching of working points of a front drive motor and a rear drive motor of the new energy automobile according to the size of the total required torque requested by a driver, and guaranteeing that the loads of the front and rear axles of the new energy automobile are lower than the allowable maximum value of the adhesion force of a road surface. According to the four-wheel drive torque distribution method for the new energy automobile, reasonable distribution of front axle loads and rear axle loads is achieved, a driver can avoid driving slipping or braking locking and other unstable states when operating different modes, the safety performance of the automobile can be improved, and meanwhile the dynamics and trafficability of a pure electric double-motor automobile are guaranteed.

    本发明公开了一种新能源汽车四驱扭矩分配方法,根据驾驶员请求的总需求扭矩大小,控制新能源汽车的前驱动电机和后驱动电机的工作点的切换,并确保新能源汽车的前、后轴载荷低于路面附着力允许的最大值。本发明的新能源汽车四驱扭矩分配方法,实现对前后轴荷的合理分配,让驾驶员在操作不同模式下,避免驱动打滑或者制动抱死等失稳状态,不仅可以提高车辆的安全性能,同时保证了纯电动双电机汽车动力学和通过性。


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    Title :

    Four-wheel-drive torque distribution method for new energy automobile


    Additional title:

    新能源汽车四驱扭矩分配方法


    Contributors:
    ZHAO BEIBEI (author) / LIU ZHAOCAI (author) / HAO WEI (author)

    Publication date :

    2021-07-23


    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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