Patent ID: 7574296

Claim:
A method for controlling a non-self-locking clutch actuatable by a clutch actuating system on the basis of electric power, between a drive unit and a transmission, and having a control device controlling the clutch actuating system and determining, using measured data of a sensor, a clutch position, the method, to verify a clutch reference position, comprising the steps of: powering down the clutch actuating system for a predetermined first passive period of time or until an actuator stoppage occurs; then determining the achieved clutch position in a first measurement and supplying electric power to the clutch actuating system for a predetermined active period of time; then powering down the clutch actuating system again for another predetermined passive period of time or until another actuator stoppage occurs; then determining the clutch position in another measurement; and then checking the measured clutch position to determine whether the clutch position measured by the first or other measurement can be verified as a new clutch reference position.