Development Survey of Automobile Automated Transmission

Abstract:

Five automated transmissions popular in international automobile market are introduced systematically.Transmission principle of five transmissions is expatiated,and development history and state-of-art of the automated transmissions are advanced.From the perspective of simulation skill,launch control,shifting schedule establishment,shifting quality optimized,actuator design,and product manufacture,the same key techniques of automated transmissions are proposed.Representative manufacturers and the application status in China market are listed.Advantages and disadvantages of automated transmissions are compared,and development perspective is presented.

Key words:automated transmission; launch control; shifting schedule; shifting quality