The invention discloses an electric automobile and a working condition recognition method and device for the electric automobile. The method comprises the steps that: the motor request torque, currentautomobile speed and steering wheel rotating angle of the electric automobile are obtained; the linear acceleration of the electric automobile is acquired according to the motor request torque; the lateral acceleration of the electric automobile is obtained according to the current vehicle speed and the steering wheel angle; and a current driving condition is determined according to the linear acceleration and the lateral acceleration. The method is simple, reliable and high in robustness, can achieve the accurate identification of the driving working condition of the automobile, thereby conducting torque distribution according to various driving working conditions of the automobile, ensuring reasonable torque distribution, and improving the controllability, drivability and safety performance of the whole automobile.
本发明公开了一种电动汽车及其工况识别方法、装置,包括:获取电动汽车的电机请求扭矩,当前车速和方向盘转角;根据电机请求扭矩获取电动汽车的直线加速度;根据当前车速和方向盘转角获取电动汽车的横向加速度;以及根据直线加速度和横向加速度确定当前行驶工况。该方法简单可靠、鲁棒性强,可以实现车辆行驶工况的准确识别,从而可以使汽车针对各种行驶工况进行扭矩分配,确保扭矩分配合理,进而可以调高整车的操控性、驾驶性和安全性能。
Electric automobile and working condition recognition method and device for electric automobile
电动汽车及其工况识别方法、装置
2020-05-26
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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