Abstract: Disclosed is a method for positioning a mobile unit in a motor vehicle. The mobile unit is driven by an external force and equipped with an electronic jamming protection device. A tactile input unit is provided for positioning the mobile unit. An occupied position of the mobile unit is stored under certain conditions, whereby said stored position is automatically approached when the tactile unit is correspondingly operated.

Abstract: Disclosed is a circuit arrangement for electrically controlling and/or regulating the movement of an electrically driven unit (2), especially a window lifter or sliding roof of a motor vehicle, and to a method for operating said circuit arrangement. According to the invention, a jamming protection System is characterized in that a correlation variable (K) for the adjusting force of the unit (2) is measured and the adjusting movement is stopped or reversed in order to prevent jamming if the correlation variable (K) for the adjusting force exceeds a threshold value that corresponding to a predetermined jamming force. A filter (140) is used for temporally filtering the correlation variable (K) for the adjusting force of the unit. The invention is characterized in that the filter parameters (142, 143), especially the cutoff frequency (fg) and/or the order of the filter (140), can be controlled.

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)).

Abstract: In a method for determining the distance between two transmitting and receiving stations, a transmission signal is generated in each station and is transmitted as a series of microwave pulses having a predefined pulse repetition frequency to the other respective station. The coincidence of pulses of the transmission signal sent by the respective station and the signal received by the station is detected in each station as a coincidence event, and the number of pulses transmitted and received by the respective station at the time of the coincidence event is determined. The distance between the stations is then calculated on the basis of the number of the determined pulses.

Abstract: 1. Method for determining the distance between two transmitting and receiving stations. 2.1. In automotive engineering transmitting and receiving stations are usually used in keyless locking systems as electronic key modules or evaluation units for identifying the key module. Deactivation of the locking system is prevented, if the key module is not in the immediate vicinity of the evaluation unit. The novel method shall determine the distance between two transmitting and receiving stations with high resolution. 2.3. According to the novel method, a transmission signal is generated in each transmitting and receiving station and is transmitted as a series of microwave pulses having a predefined pulse repetition frequency to the other respective transmitting and receiving station.

Abstract: In automotive engineering transmitting and receiving stations are usually used in keyless locking systems as electronic key modules or evaluation units for identifying the key module. Deactivation of the locking system is prevented if the key module allocated by means of a clear identification number from the evaluation unit is not in the immediate vicinity of the evaluation unit. The novel method shall determine the distance between two transmitting and receiving stations with high resolution. According to the novel method, a transmission signal (S1, S2) respectively is generated in the transmitting and receiving stations (1, 2) and transmitted as a series of microwave pulses having a predefined pulse repetition frequency (fp1, fp2) to the other respective transmitting and receiving station (2, 1) and received thereby in the form of a received signal.