Method of controlling a dual clutch transmission

摘要

A method of controlling the pressure applied to the engaged clutch of a vehicle having a dual clutch transmission to control the torque transferred across the engaged clutch thereby providing engine speed control for each gear based on the engine throttle position. The method includes the steps of determining the engine throttle position, determining the currently engaged gear of the transmission, and sensing the speed of the clutch. An engine stall speed is selected for the current gear and engine throttle position from a look-up table, and then a target engine speed based on the engine stall speed and the clutch speed is continuously redetermined, the clutch speed increasing in response to the increasing engine speed. The method also includes determining the difference between the target engine speed and the actual engine speed and then varying the torque transferred across the clutch driving the engaged gear to cause the engine to track the target engine speed based on the difference between the target engine speed and the actual engine speed.