Research on Brushless DC Motor Control System for Electric Vehicle

摘要

In order to improve the controllability and safety of electric vehicle, the flexibility of the motor control system, and ensure the service life of the motor controller, a kind of brushless DC motor control system that used microcontroller with special integrated circuits is suggested in this paper. Introduced the control scheme and operational principle of the control system, given the main hardware circuit, and expounded the control strategy and software design of system. In this control system, the microcontroller is mainly used to control special integrated circuits, implement good man-machine conversation and control strategy, as well as the management of the lead-acid battery; Special integrated circuits main to control the motor, alleviate the pressure of microcontroller effectively, guarantee the microcontroller to complete other work better. The test result indicates that the control system have a simple structure, response quickly, good reliability.