The invention belongs to the technical field of pure electric vehicle control strategies, and particularly relates to a single-pedal electric direct-drive vehicle control method. The method comprises the steps that firstly, the road gradient of a road where a vehicle is located, the pedal displacement of the vehicle and the pedal displacement rate are obtained; then, the working interval where the vehicle is located is judged, wherein the working interval is a driving interval, a sliding interval or a braking interval; under the condition that the vehicle is in the driving interval, if the road gradient is larger than 0, the torque value corresponding to the pedal opening degree is increased; if the road gradient is larger than the gradient threshold value, the pedal displacement is larger than the pedal displacement threshold value or the pedal displacement rate threshold value is larger than the pedal displacement rate threshold value, the torque value corresponding to the increased pedal opening degree needs to be compensated. Under the condition that the vehicle is in the driving interval, the torque value corresponding to the pedal opening degree is increased, then under the condition that the gradient is large, the pedal displacement is large or the pedal displacement rate is large, the motor torque is compensated, and the vehicle requirement is met.
本发明属于纯电动车辆控制策略技术领域,具体涉及一种单踏板电动直驱车辆控制方法。该方法首先获取车辆所处道路的道路坡度、车辆的踏板位移和踏板位移速率;然后判断车辆所处的工作区间,所述工作区间为驱动区间、滑动区间或者制动区间;在车辆处于驱动区间的情况下,若道路坡度大于0,则增加踏板开度对应的转矩值;且若道路坡度大于坡度阈值、踏板位移大于踏板位移阈值或者踏板位移速率阈值大于踏板位移速率阈值,还需对增加后的踏板开度对应的转矩值进行补偿。本发明在车辆处于驱动区间的情况下,增加踏板开度对应的转矩值,进而在坡度较大、踏板位移较大或者踏板位移率较大的情况下,同样对电机转矩进行补偿,满足车辆需求。
Single-pedal electric direct-drive vehicle control method
一种单踏板电动直驱车辆控制方法
2023-03-24
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |