The invention relates to an electric vehicle driving torque distribution method and device, computer equipment and a storage medium. A constraint range of a torque distribution coefficient is obtained; the constraint range of the torque distribution coefficient is divided into a plurality of sub-constraint ranges; in each sub-constraint range, according to the torque distribution coefficient and apreset iterative algorithm, an optimization objective function is solved to obtain a target torque distribution coefficient enabling the output value of the optimization objective function to be minimum, thereby obtaining a torque distribution coefficient enabling the stability and economy of the electric vehicle to be optimal; and the torque required by a front motor and the torque required by arear motor of the electric vehicle are obtained according to the target torque distribution coefficient and the total required torque. According to the method, the range of the torque distribution coefficient can be constrained, the calculation amount is reduced, the torque distribution mode is prevented from being too extreme, the optimal torque distribution coefficient can be calculated in eachsub-constraint range, the calculation time is shortened, and an effect of torque distribution enabling the economy and stability to be optimal is achieved.

    本发明涉及一种电动汽车驱动转矩分配方法、装置、计算机设备和存储介质,通过获取转矩分配系数的约束范围,将该转矩分配系数约束范围划分为多个子约束范围,在每个子约束范围中根据转矩分配系数和预设迭代算法,对优化目标函数进行求解,得到令优化目标函数输出值最小的目标转矩分配系数,从而得到令电动汽车稳定性和经济性最优的转矩分配系数,根据该目标转矩分配系数和总需求转矩,得到电动汽车前电机需要的转矩和后电机需要的转矩。本申请可以对转矩分配系数的范围进行约束,减少了计算量,避免转矩分配方式过于极端,还可以在每个子约束范围内进行最优转矩分配系数的计算,缩短计算时间,实现了令经济性和稳定性均最优地分配转矩的效果。


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    Title :

    Electric vehicle driving torque distribution method and device and computer equipment


    Additional title:

    电动汽车驱动转矩分配方法、装置和计算机设备


    Contributors:
    ZHANG XINRUI (author) / DUAN JIE (author) / JIANG QINGHUA (author) / LIN QINHONG (author)

    Publication date :

    2020-05-22


    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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