Research on the four wheel hub motor control system of the electric vehicle based on DSP

摘要

This paper mainly solves the problem of the independent driving and coordinated control of the four wheel motor in electric vehicle. The vehicle controller is designed based on DSP2407, the DA_OUT function is added to the program of the DSP2407 SPI module, which can be used to set the parameters SPI_DATA according to the corresponding relationship between the digital quantity of sensors and the speed of the four wheels. The four channels can be programmed independently. From the experiment figures, it can be known that the method proposed in this paper can realize the independent driving of the four wheels motor, which provides the basis for the future research of the electric vehicle turning and other complex working conditions.