A driving force control method is executed in a vehicle provided with a first electric motor for driving front wheels and a second electric motor for driving rear wheels, and distributes a requested driving force for travel driving at a predetermined distribution ratio in accordance with the travel state of the vehicle and outputs the requested driving force by the first electric motor and the second electric motor. In this driving force control method, an output torque is moved from one motor to the other motor in accordance with a change in a distribution ratio based on the traveling state of the vehicle, a slip state parameter indicating the slip state of the vehicle is set, and when the slip state parameter is equal to or less than a predetermined threshold value, the output torque is shifted from the one motor to the other motor. When the slip state parameter exceeds the threshold value, the upper limit of the rate of change of the output torque of the movement is set to a relatively small first upper limit value, and when the slip state parameter exceeds the threshold value, the upper limit of the rate of change is set to a relatively large second upper limit value.

    本发明提供一种驱动力控制方法,在具备驱动前轮的第一电动机和驱动后轮的第二电动机的车辆中被执行,根据车辆的行驶状态以规定的分配比分配行驶驱动用的请求驱动力并通过第一电动机和第二电动机输出,在该驱动力控制方法中,根据基于车辆的行驶状态的分配比的变化,使输出扭矩从一方的电动机向另一方的电动机移动,设定表示车辆的滑动状态的滑动状态参数,在滑动状态参数为规定的阈值以下的情况下,将移动的输出扭矩的变化速度的上限设定为相对较小的第一上限值,在滑动状态参数超过阈值的情况下,将变化速度的上限设定为相对较大的第二上限值。


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    Title :

    Driving force control method and driving force control device


    Additional title:

    驱动力控制方法及驱动力控制装置


    Contributors:

    Publication date :

    2023-06-23


    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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