基于线控电动汽车的驱动转向一体化控制器研究

Integrated controller for EV drove and steer by wire

针对目前纯电动汽车轮毂电机驱动和四轮电机转向都是作为独立技术进行研究的问题,对线控电动汽车结构、整车控制系统、轮毂电机驱动控制、四轮独立转向、CAN总线通信网络、功率管隔离驱动等方面进行了研究,提出了一种基于线控电动汽车的驱动转向一体化控制器,对其总体控制方案和5大关键技术进行了归纳总结,利用配置了驱动转向一体化控制器的线控电动汽车进行了5种工作模式的实验,并重点对正常工作模式下转向和电子差速控制进行了实验研究。研究结果表明,驱动转向一体化控制器能满足线控电动汽车转向和电子差速在实时性、控制精度和可靠性等方面的技术要求。

Aiming at the problem that recently both the driving strategy for the motor in wheel and steering strategy for the electric vehicle were researched independently, the structure, the control system, the motor in wheel driving control system, the independent steering sys-tem, the CAN communication network and the power tube isolation drive were studied, and the integrated controller for the electric vehicle was proposed. Experiments on 5 kinds of vehicle working mode were carried out based on the integrated steering controller driver. The steer-ing and electronic differential control of the normal working mode was focused by experiment. The results indicate that the integrated control-ler can meet the real time, accuracy and reliability requirements of the electric vehicle.