Pinch detection system

An open-roof assembly for covering or at least partly uncovering an opening in a vehicle roof, the open-roof assembly comprising a moveably arranged closure member, a drive assembly configured to move the closure member and a control unit operatively coupled to the drive assembly and configured to control a movement of the closure member, wherein the control unit comprises a pinch detection unit configured to detect a pinch of the closure member with an object, the pinch detection unit comprising a first pinch detection system, a second pinch detection system and a predetermined reference, the predetermined reference representing an undisturbed movement of the closure member, wherein the first pinch detection system comprises :

• a first tracker module configured to compare the movement of the closure member and the reference, the first tracker module allowing a first tolerance between movement and the reference;
• a first deviation module configured to determine a first deviation in movement by the closure member, if the first tolerance is exceeded;
• and
• a first pinch determination module configured to determine that a pinch occurs, if the first deviation in movement exceeds a first threshold;
• and
• wherein the second pinch detection system comprises:
• a second tracker module configured to compare the movement of the closure member and the reference, the second tracker module allowing a second tolerance between movement and the reference, the second tolerance being larger than the first tolerance;
• a second deviation module configured to determine a second deviation in movement by the closure member, if the second tolerance is exceeded;
• and
• a second pinch determination module configured to determine that a pinch occurs, if the second deviation in movement exceeds a second threshold, the second threshold being smaller than the first threshold;
• and
• wherein the pinch detection unit is configured to determine that a pinch occurs if at least one of the first and the second pinch detection systems determines that a pinch occurs.