Method and device for identifying pinching situations in displacing drives in motor vehicles

Abstract

Disclosed is a method for identifying pinching situations in a motor-driven displacing device. During a displacing process along an actuating direction, values (W(n) to (W(n−m)) of a quantity (1), which characterizes the currently occurring displacing force, or a quantity derived therefrom are determined and stored, and a quantity (8) that characterizes the pinching force of the displacing device is determined on the basis of at least two stored values (W(n) to (W(n−m)). At least two measured values (W(n) to W(n−m)) of the quantity (1), which characterizes the displacing force, or of a quantity, which is derived from these values (W(n) to W(n−m)), are compared with one another with regard to the time at which they are recorded, and are weighted according to the time at which they are recorded, wherein the quantity (8) that characterizes the pinching force is determined on the basis of the weighted values and is compared with an initiating threshold, and when this initiated threshold is exceeded, the displacing process is stopped and/or the actuation direction is reversed.

Dependencies are inferred from the claim text.