Patent ID: 8392083

Claim:
A method for controlling a twin clutch transmission including at least two partial drive trains, each of which is coupleable to a combustion engine using a respective clutch (K 1 , K 2 ), comprising the following steps to be carried out on the inactive partial drive train: shifting from an engaged gear to neutral with the clutch of the inactive partial drive train open; determining the drag torque M S of the input shaft of the inactive partial drive train during a predetermined period P 1 ( 130 ); closing the clutch of the inactive partial drive train up to a predetermined position in which a clutch torque is transmitted and determining a total torque M of the input shaft of the inactive partial drive train during a predetermined period P 2 ( 140 ); determining the clutch torque M K of the input shaft of the inactive partial drive train from the drag torque M S and the total torque M as the sum of the drag torque M S and the clutch torque M K ; and determining a contact point position from the absolute value of the determined clutch torque M K and a clutch characteristic of the clutch of the inactive partial drive train.