The invention belongs to the technical field of electric automobiles, and particularly provides an electric drive axle vehicle single-axle drive control system and method based on double-axle drive, and the system comprises two electric drive axles, a vehicle control unit and a gear shifting handle in communication connection with the vehicle control unit; each electric drive axle is provided with a drive motor, a gear shifting speed change mechanism and a gear shifting executing mechanism which are connected with the vehicle control unit. The gear shifting handle sends a gear shifting operation request of a driver to the vehicle control unit through the CAN bus, the vehicle control unit enters a single-axle driving control mode by recognizing operation of the driver, a gear shifting executing mechanism on the driven electric drive axle is controlled, and gear shifting switching of the electric drive axle is achieved. Switching control between the two electric drive axles can be achieved, driving of one electric drive axle is switched to driving of the other electric drive axle, abrasion balance is guaranteed, when one electric drive axle goes wrong or is abnormal, the other electric drive axle is controlled to be switched in, it is guaranteed that a vehicle does not stop, and the fault parking rate of the vehicle is reduced.
本发明属于电动汽车技术领域,具体提供一种基于双轴驱动的电驱桥车辆单桥驱动控制系统及方法,所述系统包括两个电驱桥、整车控制器和与整车控制器通信连接的换档手柄;每个电驱桥上安装有与整车控制器连接的驱动电机、换档变速机构和换档执行机构;换档手柄通过CAN总线将司机的换档操作请求发给整车控制器,整车控制器通过识别司机操作,进入单桥驱动控制模式,控制驱动的电驱桥上的换档执行机构,实现电驱桥的换档切换。可以实现两个电驱桥之间的切换控制,由一个电驱桥驱动切换到另一个电驱桥驱动,保证磨损均衡,也可以在一个电驱桥出现问题或异常时,控制另一个电驱桥切入,保证车辆不停车,降低车辆故障停车率。
Electric drive axle vehicle single-axle drive control system and method based on double-axle drive
一种基于双轴驱动的电驱桥车辆单桥驱动控制系统及方法
2023-12-22
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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