The embodiment of the invention provides a motor torque control method and device under the gear shifting working condition of an electric vehicle and the vehicle, relates to the technical field of new energy vehicles, can distinguish the zero-crossing torque interval of the vehicle according to the vehicle running state, the required torque and a gear signal, distinguishes the reverse rotation state and the normal power output state of a transmission system, and improves the reliability of the vehicle. Torque response under different function requirements is realized, and the problems of slow power response and long gear shifting time are effectively avoided; specific torque requirements of dynamic gear shifting working conditions are accurately recognized according to the rapid switching working conditions between the forward gear and the reverse gear, the torque step phenomenon is avoided, and it is ensured that the vehicle runs stably and safely; in addition, a timing mechanism is introduced, the dynamic gear shifting torque acting time is reasonably calibrated, the torque slope in the dynamic gear shifting process is regulated and controlled, and the problem that the speed of the vehicle cannot be reduced due to the long-time acting of the dynamic gear shifting torque is solved.
本申请实施例提出了一种电动汽车换挡工况电机扭矩控制方法、装置及车辆,涉及新能源汽车技术领域,可以根据车辆运行状态、需求扭矩以及挡位信号来区分车辆过零扭矩区间,对传动系统反转和正常动力输出状态进行区分,实现不同功能需求时的扭矩响应,有效避免动力响应慢、换挡时间长的问题;并且针对前进挡与倒车挡之间的快速切换工况,精准识别动态换挡工况的特定扭矩需求,避免扭矩发生阶跃现象,确保车辆行驶稳定且安全;此外引入了计时机制,通过对动态换挡扭矩作用时间进行合理标定,调控动态换挡过程中的扭矩斜率,避免了动态换挡扭矩长时间作用导致车辆无法降速的问题。
Motor torque control method and device under gear shifting working condition of electric vehicle and vehicle
一种电动汽车换挡工况电机扭矩控制方法、装置及车辆
2025-03-14
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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