Up-shift control in wet double clutch transmission

In order to solve the problems of shifting jerk of dual-clutch automatic transmission and clutch fray, the characteristic of dual-clutch pressure transmitting during shifting was studied based on the analysis of shifting quality evaluation, and method to control the clutch pressure was proposed. Taking up-shift from 1 to 2 for example, up-shifting control strategy was drawed. The effection on shifting quality of dual-clutch automatic transmission in the presence of engine was discussed. After applied the introduced method into the real car test under different throttle positions, ideal shifting quality was achieved. The result indicated that the speed of vehicle changed gentlely without distinct impact, and the oil temperature hardly changed. This essay verifies the validity of the proposed method of dual-clutch pressure control and the strategy of shifting control.