机械式自动变速器, 起步离合器, MAP图控制, DMC-PID串级算法

The mainly influence factors of the clutch engagement during starting process had been analyzed thoroughly; a Map control strategy was applied to reduce the starting jerk and the friction work by considering throttle angle, engine speed, idle object speed and input shaft speed. Due to the influence of nonlinear dynamic characteristics with time-delays of clutch electrohydraulic position control system, a DMC-PID cascade control algorithm was proposed for clutch position control, which took the advantages of the strong robustness and predictability of DMC, the strong anti-jamming ability of PID. Road tests were implemented using the proposed Map control strategy with Shanghai Maple model AMT, which proves that the method is effective.