| 摘要 |
An anti-pinching device (18) for a pivotable actuating element (6) of a motor vehicle (2) is specified. Said device comprises a capacitive sensor (8) which is intended to contactlessly detect an obstacle in the path of the actuating element (6) and has an electrode (14) for generating an external electric field opposite a counterelectrode (16), wherein the electrode (14) extends in a radial direction (R) of the pivoting movement of the actuating element (6), and a control unit (10) which is set up to interpret a change in a measurement capacitance (CM), which is formed between the electrode (14) and the counterelectrode (16), as pinching when the changed measurement capacitance (CM) exceeds a triggering threshold (A) which is predefined on the basis of an opening angle (φ) of the pivotable actuating element (6) and to track the triggering threshold (A). In order to achieve greater detection reliability of the anti-pinching device (18), the electrode (14) is subdivided into a plurality of segments (12) along the radial direction (R), wherein the control unit (10) is set up to track the triggering threshold (A) in a manner assigned to segments. |
