MODELING AND SIMULATION ON DOUBLE-CLUTCH LAUNCHING OF DRY DUAL CLUTCH TRANSMISSION

摘要

Based on the particular structure of the Dual Clutch Transmissions (DCT), the control strategy of doubleclutch-launching is proposed, which distributes the transmitted torque of the two clutches properly and makes their slippage work relatively equal. Simulations including launching with different accelerator pedal displacements and on ramp are carried out based on the dynamics models of the engine, clutch, transmission as well as the vehicle longitudinal dynamics model. The results show that with the application of the proposed control strategy, the launching duration is short and the jerk is within the recommended limits. Furthermore, the slippage work of two clutches turns out to be relatively close.