Study on control strategy of starting process for clutch of AMT vehicle

The control strategy of cultch engagement process for AMT vehicle starting stage was researched in this paper, and the control strategy of multi-stages which developed based on fuzzy-control was introduced. The initial-starting stage, starting-accelerate stage and tend to synchronous stage of clutch was controlled in fuzzy closed-loop. In order to increase the control accuracy, the control parameters were optimized respectively, and a reasonable fuzzy control rule base was designed. An electronic-control system based on Freescale MC9S12DT128 microcontroller was developed. Bench test was taken on the first gear and second gear, the results show that: or the jerk and friction work of the engagement process is in allowable range, the vehicle can be started quickly and smoothly.