The invention discloses a control method for ejection starting of an electric vehicle, which comprises the following steps of: sequentially stepping on a vehicle brake pedal and a vehicle accelerator pedal, and enabling the vehicle accelerator pedal to be at a forced downshift position; the vehicle control unit sends motor output torque request information to a motor control unit according to the position information of the vehicle brake pedal and the position information of the vehicle accelerator pedal; and the motor control unit controls the motor output torque according to the motor output torque request information, and drives the vehicle to be launched after the vehicle brake pedal is released. By controlling the output torque of the motor, it can be ensured that the maximum acceleration is obtained during ejection starting of the vehicle, and the stability of the vehicle is ensured; the starting speed of the electric automobile is increased, a driver can obtain the maximum back pushing feeling, the starting time is shortened, the acceleration time per hundred kilometers of the automobile is shortened, the driving feeling and the driving fun of the driver are improved, and the safety of ejection starting can be fully ensured.
本发明公开了一种电动汽车弹射起步的控制方法,即依次踩下车辆制动踏板和车辆加速踏板,并令所述车辆加速踏板处于强制降档位置;整车控制器根据上述车辆制动踏板的位置信息和车辆加速踏板的位置信息向电机控制单元发出电机输出扭矩请求信息;所述电机控制单元根据所述电机输出扭矩请求信息控制电机输出扭矩,并在所述车辆制动踏板被释放后驱动车辆弹射起步。本发明通过对电机输出扭矩的控制可以确保车辆弹射起步时获得最大加速度,并确保车辆的稳定性;不仅提高电动汽车的起步速度,让驾驶员获得最大推背感,缩短起步时间,缩短汽车百公里加速时间,提高驾驶员的驾驶感受和驾驶乐趣,还可充分确保弹射起步的安全。
Control method for ejection starting of electric automobile
一种电动汽车弹射起步的控制方法
2022-05-13
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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