The invention provides an electric vehicle hill starting assisting method, belongs to the technical field of auxiliary driving, and determines that a hill starting assisting process needs to be executed when it is judged that the working condition of a vehicle on a ramp and the angle of the ramp meet preset conditions. Under the condition, if the brake pedal is lifted up, the motor is controlled to output the auxiliary torque, the vehicle sliding trend is overcome only through the auxiliary torque of the motor, the vehicle is kept static on a ramp, the vehicle sliding phenomenon is avoided, the subsequent ramp starting process is facilitated, an electromechanical servo power-assisted brake system does not need to be used, and the cost is reduced. And the driver does not need to step on a brake pedal or pull up a hand brake, so that the hill starting auxiliary process is completed at lower cost.
本申请提供了一种电动汽车坡道起步辅助方法,属于辅助驾驶技术领域,在判断出位于坡道上的车辆的工况以及坡道的角度满足预设条件时,确定出需要执行坡道起步辅助过程。在这种情况下,如果刹车踏板被抬起,则控制电机输出辅助扭矩,只利用电机的辅助扭矩来克服车辆溜车趋势,使车辆在坡道上保持静止,避免溜车现象,便于后续进行坡道起步过程,无需使用机电伺服助力刹车系统,也无需驾驶员踩下刹车踏板或拉起手刹,以更低的成本完成了坡道起步辅助过程。
Method and device for assisting hill starting of electric vehicle and vehicle
电动汽车坡道起步辅助方法、装置及车辆
2023-06-02
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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