In order to improve the consistency and stability of automobile transmission,a design method of automobile mechanical automatic transmission system based on torsional damping is proposed.The hardware structure of automatic mechanical transmission system is composed of main control chip,minimum system,input/output circuit,communication interface,motor drive circuit and torsional damper.The dynamic model of the vehicle in the starting state and the sliding state is established.On this basis,the vehicle speed control is realized through fuzzy control and Fuzzy-Bang Bang dual mode control,and the design of the automatic mechanical transmission system of the vehicle is completed.The experimental results show that the shift time of the proposed method is short and the stability of the shift process is high.
关键词
汽车机械式自动变速/扭转减振器/动力学模型/模糊控制/变速系统设计
Key words
auto mechanical transmission/torsional damper/dynamic model/fuzzy control/transmission system design