Patent ID: 8321109

Claim:
A method of controlling a clutch, which forms part of a drive train of a motor vehicle, for a torque transfer between an engine and a transmission, in which significant clutch way points are assigned to the clutch, whereby a clutch way point coordinate system, achieved through a learning process and comprising at least relevant clutch way points needed for starting gear shift, being monitored by verifying an engaging point (s Z ) of the clutch and, in case of a change, being one of corrected and used as measured, the method comprising the steps of: in order to learn a new friction point (S M ), learning the point of engagement after starting the engine, disengaging the clutch under consideration of a constructional related minimum disengagement way point, with the engine running, moving the clutch under consideration a direction toward engagement until a transmission input, captured by a transmission speed monitoring of a transmission side secondary side of the clutch under consideration, exceeds a given rotation speed threshold, acquiring an actual engaging speed, which is the speed at which the clutch under consideration is engaged, and depending on the acquired actual engaging speed, correcting the determined friction point (s M ) for the clutch under consideration.