Anti-Trapping Protection: Overview

Anti-trapping protection restricts window closing force to a maximum permissible value (closing-force limitation). Any load in excess of this force causes the window to immediately stop and reverse.

The power windows require an initialization procedure during the initial startup.

The initialization procedure consists of:

• Standardization
• Learning of characteristic closing-force curve

When the window is standardized, the end positions of the window travel are determined by a blocking run in the upper window seal and on the lower window stop. When the closing force is being learned, it is measured over the entire closing travel and permanently stored.

Anti-trapping protection is active and one-touch closing is possible only after initialization has been completed.

Calibration of the triggering threshold begins with a closing force of approx. 500 N. This high starting value increases operational reliability so that the windows are closed even in the event of stiffness.