Anti-trap system for an open roof assembly

An open roof assembly for providing a closable roof opening in a vehicle roof, the open roof assembly comprising a closure member that is moveably arranged for opening and closing the roof opening and a detection system for detecting an object in the roof opening and for providing a signal to a control unit for controlling movement of the closure member of a vehicle having the vehicle roof, wherein the detection system is configured to

• determine at least one property of the object;
• select a signal from a group of signals, dependent on the determined at least one property of the object, wherein the group of signals comprises an entrapment signal and an operating signal to instruct the control unit to perform a user controlled operation;
• and
• provide the selected signal to the control unit;
• and
• wherein the detection system comprises a mechanical impact detection and localization system, the mechanical impact detection and localization system being configured to detect a mechanical impact and to ascertain a position of the mechanical impact, and wherein the detection system is configured to provide:
• the entrapment signal when a mechanical impact is detected in an edge section of the closure member;
• and
• the operating signal when a mechanical impact is detected in a center section of the closure member.