The invention provides a vehicle downhill speed control method, device and system and a vehicle. Automatic working condition recognition and automatic and stable speed control in the downhill process of the vehicle are achieved. According to the vehicle downhill speed control method, when the vehicle goes downhill, no matter how much the real-time vehicle speed is, a driver only needs to loosen the accelerator pedal and the brake pedal, the vehicle can automatically recognize the downhill working condition, the current vehicle speed serves as the target vehicle speed, vehicle speed closed-loop operation is conducted, and the real-time required brake torque is determined; and the required braking torque is realized by controlling the torque feedback of the motor and the electronic braking system, so that the vehicle automatically runs at the stable target vehicle speed, and the control simplicity, the economical efficiency and the driving feeling when the vehicle goes downhill are improved.
本申请提供了车辆下坡车速控制方法及控制装置、控制系统及车辆,实现了车辆下坡过程的工况自动识别、车速自动稳定控制。本申请提供的一种车辆下坡车速控制方法,车辆在下坡时,无论实时车速为多少,驾驶者只需松开加速踏板和制动踏板,车辆即可自动识别下坡工况,并以当前车速作为目标车速,进行车速闭环运算确定实时需求制动扭矩,再通过控制电机扭矩回馈以及电子制动系统来实现需求的制动扭矩,从而使车辆自动以稳定的目标车速运行,提高了车辆下坡时操控简便性、经济性和驾驶感受。
Vehicle downhill speed control method, device and system and vehicle
车辆下坡车速控制方法及控制装置、控制系统及车辆
2023-03-31
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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