Controller Design for DC Brushless Motor of Electric Vehicle

Based on ds PIC and MC33035,a kind of controller is designed for brushless dc motor with good speed regulating and high reliability,which is used in electric car with four-wheel independent drive. The control plan and operating principle are outlined,and the corresponding hardware circuit structure and speed regulation method are introduced. The controller was applied to test self-developed electric car with four-wheel independent drive. The results indicate that the controller have characteristics of fast response,good speed control performance and high stability with low cost and extensive application.