Scheme for operating an electric window lifter

An operating method for (i) an electric rear window lifter for moving a rear pane and (ii) an electric front window lifter for moving a front pane in a motor vehicle, wherein:

• (a) a control device in the motor vehicle controls the electric rear window lifter to move the rear pane in a rear-pane lowering direction,
• (b) the control device detects trapping of a body part or other object between the rear pane and the front pane, while the electric rear window lifter is moving the rear pane in the rear-pane lowering direction,
• (c) upon detecting the trapping of the body part or the other object, the control device automatically moves the rear pane in a rear-pane lifting direction to a safety position that eliminates the case of trapping, while preventing movement of the front pane, and
• (d) upon reaching the safety position, the control device automatically holds the rear pane at the safety position, wherein:
• a corner of the rear pane moves along a curved trajectory when moved in the rear-pane lowering direction from a closed position to an open position, forming a gap between the rear pane and the front pane at intermediate positions;
• the case of trapping occurs at a trapping position wherein the gap is substantially closed in a plane of movement of the rear pane;
• at the safety position, the gap is open in the plane of movement of the rear pane;
• and
• the safety position is an intermediate position between the closed position and the open position.