The invention discloses a torque dynamic change control method and system for a multi-power-source electric vehicle and the vehicle. The method comprises the following steps that the maximum total theoretical torque variable quantity of the whole vehicle based on the driving comfort requirement is determined; determining the maximum target torque variation of each motor in the task period; determining a first theoretical variable quantity of the torque of each motor in the task cycle; determining the total increase amount of the motor torque, the total decrease amount of the motor torque and the theoretical change amount of the whole vehicle torque in the task period; determining a first proportionality coefficient and a second proportionality coefficient; setting vehicle acceleration performance optimization parameters, and determining the variable quantity of the target torque of each motor in the task period; obtaining a target torque of each motor after a task period; and the above steps are repeated until the target torque is the steady-state target torque after multiple task periods. According to the method, the motor torque, the whole vehicle torque and the whole vehicle impact are regulated and controlled, and the dynamic property, comfort and safety of electric vehicle driving are integrated.

    本发明公开了一种多动力源电动汽车转矩动态变化控制方法、系统及车辆,方法包括以下步骤:确定基于驾驶舒适度要求的整车最大总理论转矩变化量;确定任务周期内各电机最大目标转矩变化量;确定任务周期内各电机扭矩第一理论变化量;确定任务周期内电机扭矩总增大量、电机扭矩总减少量和整车扭矩的理论变化量;确定第一比例系数和第二比例系数;设定整车加速性能优化参数,确定各电机在任务周期内目标转矩的变化量;得到各电机在一个任务周期后目标转矩;重复上述步骤,直至多个周期任务周期后目标转矩为稳态目标转矩。本发明的方法,通过对电机转矩、整车转矩和整车冲击的调控,综合了电动汽车驾驶的动力性、舒适性以及安全性。


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    Title :

    Multi-power-source electric vehicle torque dynamic change control method and system and vehicle


    Additional title:

    多动力源电动汽车转矩动态变化控制方法、系统及车辆


    Contributors:
    LIU QING (author) / XIONG YONG (author) / LI MENG (author) / WANG LONG (author) / RAO XIANPENG (author) / RAO YADAN (author)

    Publication date :

    2022-12-16


    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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