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。
Four-wheel drive gradient torque control method and device, and four-wheel drive vehicle
四驱坡度扭矩控制方法、装置及四驱车辆
2020-09-15
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
European Patent Office | 2018
|European Patent Office | 2019
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