The invention provides a four-wheel drive gradient torque control method and device, and a four-wheel drive vehicle. The method comprises the steps of acquiring a longitudinal acceleration of a wholevehicle; estimating a current gradient according to the longitudinal acceleration; and calculating a torque output to a driven wheel according to the estimated gradient. According to the four-wheel drive gradient torque control method and device, and the four-wheel drive vehicle, the current gradient can be accurately estimated under the condition that a sensor is not additionally arranged, and then the output torque is accurately controlled.

    本发明提供了一种四驱坡度扭矩控制方法、装置及四驱车辆。该方法包括:获取整车的纵向加速度;根据纵向加速度,估计当前的坡度;根据估计得到的坡度,计算输出到被动车轮的扭矩。本发明提供的四驱坡度扭矩控制方法、装置及四驱车辆能够在不额外增加传感器的条件下,准确估计当前的坡度,进而准确的控制输出扭矩。


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    Title :

    Four-wheel drive gradient torque control method and device, and four-wheel drive vehicle


    Additional title:

    四驱坡度扭矩控制方法、装置及四驱车辆


    Contributors:
    WEI XIAOLEI (author)

    Publication date :

    2020-09-15


    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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