Title :
On control strategy of automatic transmission starting process
Author :
Wang, Erlie ; Tao, Gang ; Chen, Huiyan
Author_Institution :
Mech. Eng. Dept., Beijing Inst. of Technol., Beijing, China
Abstract :
In a bid to research the starting process and improve the gear performance, the control of clutch in the starting process of a hydro-mechanical automatic transmission is analyzed. For this purpose the dynamic model of vehicle during starting process is built and analyzed in detail. Then a control strategy of starting process for automatic transmission is proposed, that is, fuzzy adaptive control at initial phase of quick oil charge, fuzzy adaptive control at torque phase and increment type PID adaptive control at inertia phase. Finally, the ECU is developed, and the control strategy has been verified on a heavy duty vehicle loaded with seven-gear AT. The starting process can be classified into starting by torque converter and starting by clutch. The test result shows that the control strategy is reasonable and effective.
Keywords :
adaptive control; automotive engineering; clutches; fuzzy control; gears; road vehicles; three-term control; torque convertors; vehicle dynamics; ECU; automatic transmission starting process control strategy; clutch control; fuzzy adaptive control; gear performance improvement; heavy duty vehicle; hydro-mechanical automatic transmission starting process analysis; increment-type PID adaptive control; inertia phase; quick-oil charge; seven-gear AT load; torque converter phase; vehicle dynamic model; Adaptive control; Friction; Process control; Solenoids; Torque; Turbines; Vehicles;
Conference_Titel :
Vehicular Electronics and Safety (ICVES), 2012 IEEE International Conference on
Conference_Location :
Istanbul
Print_ISBN :
978-1-4673-0992-9
DOI :
10.1109/ICVES.2012.6294325