SH â…  Series Electric Vehicle Control System Design And Application

In recent years, electric bike for less environmental pollution, low energy consumption, economical, and convenient transportation has become a focus in the field of vehicle engineering research and development. In this paper, SH I series of new electric vehicle research and development of Wuxi Electric bicycle factory is considered as the engineering background which does an independent research and develops brushless DC motor based on complex electrical and mechanical braking system.The author independently developed a fuzzy adaptive PID composite controller torque. Through real vehicle tests on the development of SH I series of electric vehicles by this control system, the results show that the system can implement braking torque regulation and improve electric vehicle’s control performance dramatically. After repeated authentication and improved control system, electric vehicles can meet the electric depot product cost-effective control requirements of Wuxi electric bicycle factory.Main contents and creative work of this paper as follows:At first, According to SH I series of electric vehicles of Wuxi electric bicycle factory’s cost-effective control system design requirements, the CY8C24423A Series brushless motor controller chip into the electric vehicle control systems, the text on the chip, extensions, key components, the external circuit the corresponding analysis, selection and design.Second, Creatively point out that electro-mechanical composite brake strategy based on fuzzy control algorithm. Having identified fuzzy braking torque calculation method, on this basis robust, developed adaptive and superior composite PID controller which is short in braking time and excellent in braking effect improve comfort, security of the operation of electric bicycles.Third, Completely use the experimental data of Wuxi electric bicycle factory accumulated a lot of preliminary work. some related experimental studies show that The upgrade system is simple, common good. When you need Car model changes, simply set the constant in the original system can avoid time-consuming software development, reducing labor costs. Compared with other similar products, the system is a high cost-effective way of control to improve the performance of electric vehicles.