The invention discloses a vehicle torque control method and system, a vehicle and a storage medium, and belongs to the technical field of vehicles. The method comprises the following steps: acquiring total permissible driving power, permissible driving power and permissible torque of each driving motor, whole vehicle torque of a vehicle and a current vehicle speed; on the basis of the licensed driving power and the licensed torque of each driving motor and the current vehicle speed, the vehicle torque is limited, and a vehicle torque limiting value and a target torque distribution coefficient of the vehicle are obtained; determining an expected torque corresponding to each driving motor based on the whole vehicle torque limit value and the target torque distribution coefficient; based on the expected torque corresponding to each driving motor and the rotating speed of each driving motor, the expected total power of the vehicle is determined; according to the method, the expected total power is compared with the permissible total driving power, the corresponding distribution strategy is selected according to the comparison result to conduct torque distribution on all the driving motors, economical torque distribution output is achieved, and meanwhile the power requirement of vehicle driving is met to the maximum degree.

    本申请公开了一种车辆扭矩控制方法、系统、车辆及存储介质,属于车辆技术领域。本申请通过获取许可总驱动功率、各驱动电机的许可驱动功率及许可扭矩、车辆的整车扭矩以及当前车速;基于各驱动电机的许可驱动功率及许可扭矩和当前车速,对整车扭矩进行限制,得到车辆的整车扭矩限制值和目标扭矩分配系数;基于整车扭矩限制值和目标扭矩分配系数,确定各驱动电机对应的期望扭矩;基于各驱动电机对应的期望扭矩和各驱动电机的转速,确定车辆的期望总功率;将期望总功率和许可总驱动功率进行比对,并根据比对结果,选择对应的分配策略对各驱动电机进行扭矩分配,实现扭矩经济分配输出的同时,最大程度的满足了车辆驾驶的动力需求。


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    Title :

    Vehicle torque control method and system, vehicle and storage medium


    Additional title:

    车辆扭矩控制方法、系统、车辆及存储介质


    Contributors:
    CAO JIANG (author) / LIU GUORUI (author) / ZHANG JIAJU (author)

    Publication date :

    2022-07-12


    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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