The invention provides a vehicle torque control method and device and a hybrid power vehicle, the method is applied to the hybrid power vehicle, and the method comprises the steps that the vehicle speed, the first driving motor rotating speed, the second driving motor rotating speed, the tire radius, the circumferential coefficient and the vehicle running working condition are obtained; based on the first driving motor rotating speed, the second driving motor rotating speed, the tire radius, the vehicle speed and the circumference coefficient, the slip rate corresponding to the vehicle driving working condition is determined; based on the first driving motor rotation speed, the second driving motor rotation speed, the tire radius and the circumference coefficient, determining a front and rear axle wheel speed difference value corresponding to the vehicle driving condition; if the slip rate corresponding to the vehicle driving working condition meets the preset slip rate condition or the front and rear axle wheel speed difference value corresponding to the vehicle driving working condition meets the preset wheel speed difference value condition, the driving motor is controlled to conduct torque compensation according to the preset compensation torque limiting condition; and the probability that the wheels slip relative to the ground is reduced, so that the stability of the vehicle is improved.
本申请提供了一种车辆扭矩的控制方法、装置及混合动力车辆,所述方法应用于混合动力车辆,包括:获取车辆速度、第一驱动电机转速、第二驱动电机转速、轮胎半径、圆周系数及车辆行驶工况;基于第一驱动电机转速、第二驱动电机转速、轮胎半径、车辆速度及圆周系数,确定车辆行驶工况对应的滑移率;基于第一驱动电机转速、第二驱动电机转速、轮胎半径及圆周系数,确定车辆行驶工况对应的前后桥轮速差值;若车辆行驶工况对应的滑移率满足预设滑移率条件或者车辆行驶工况对应的前后桥轮速差值满足预设轮速差值条件,控制驱动电机按预设补偿扭矩限制条件进行扭矩补偿;降低了车轮相对地面打滑的概率,从而提升了车辆的稳定性。
Vehicle torque control method and device and hybrid vehicle
一种车辆扭矩的控制方法、装置及混合动力车辆
2023-09-08
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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