Patent ID: 7997636

Claim:
A device for actuating a vehicle roof system, comprising a first hydraulic actuator for moving a first component of the vehicle roof system, and a second hydraulic actuator for moving a second component of the vehicle roof system in order to displace the vehicle roof system between a closed position covering the vehicle interior and an open position opening up the vehicle interior, wherein the device is designed so as, during the displacement for opening and/or closing the vehicle roof system, to provide a synchronous displacement phase in which, for the synchronous movement of the two components, the first actuator and the second actuator are hydraulically coupled via a hydraulic passage connecting the two actuators, characterized in that the device comprises: monitoring means for monitoring the synchronous movement of the two components during the synchronous displacement phase and for detecting a deviation of the synchronous movement from a predetermined desired synchronous movement, correcting means for correcting the synchronous movement by at least partially suspending the hydraulic coupling of the two actuators in the event of a deviation of the synchronous movement from the predetermined desired synchronous movement being detected; and wherein the monitoring means compare an actual movement parameter of the second component with a desired movement parameter of the second component, which desired movement parameter is generated on the basis of an actual movement parameter of the first component, and activate the correcting means as soon as the difference between the actual movement parameter and the desired movement parameter of the second component leaves a predetermined tolerance range.