Method for positioning a closing surface which is actuated by an external force

Abstract

The invention is based on a method for the contactless approaching of an upper stop position (A) outfitted with a seal (5) by a window pane (1) of a motor vehicle actuated by external force. When an upper window-pane edge (2) approaches the stop position (A), a control signal is generated by a control unit (26), by way of which the electric drive is switched off in a shutoff position (11) pa, and/or its driving direction is reversed, so that the upper window-pane edge (2) comes to a standstill at a zero position (10) p0. When the window pane (1) approaches the stop position (A), system parameters (S1 . . . Sn) are detected by sensors (27) and stored in a memory (28). A system state SZ (S1-Sn) dependent on the system parameters (S1 . . . Sn) is read out with the shutoff position (11) pa from a characteristic diagram. A difference ΔSZ is determined by comparing the respective current system states (SZcur (S1-Sn) and the reference system state SZref (S1 . . . Sn) stored in the memory (28). A new shutoff position (11.1) panew is calculated based on the deviation ΔSZ determined.

Dependencies are inferred from the claim text.