Abstract: A method for operating the electrical system of a motor vehicle having a control unit with an operating mode and an energy-saving standby mode is described. A wake-up operator control event is detected by a sensor and has an associated time interval from the preceding wake-up operator control event. The time interval is ascertained when a wake-up operator control event is detected, and the control unit is woken up or not woken up. Each wake-up operator control event has an associated switch-off indicator which is ascertained each time a wake-up operator control event is detected, and the control unit is woken up or not woken up as a function of the level of the switch-off indicator with reference to a switch-off threshold. A change in the current switch-off indicator relative to the preceding switch-off indicator is all the greater the smaller the current time interval.

Abstract: The invention relates to a drive arrangement for the motorized adjustment of a closure element of a motor vehicle, wherein the drive arrangement, in the installed state, is coupled in drive terms to the closure element. It is proposed for the drive arrangement to have at least one drive, which is intended for generating drive movements and in or on which is arranged an acoustic indicator for supplying acoustic feedback to the user.

Abstract: A sensor device for determining the deviation of the position of a head support of a motor vehicle seat from a target position is provided that includes a capacitative proximity sensor that can be integrated in a head support, having two transmitting electrodes disposed at a vertical distance from each other and a common receiving electrode.

Abstract: A method for detection of a control event by a sensor arrangement having at least one sensor element and a sensor controller is described. The sensor controller digitizes sensor signals into sensor measured values. An operator control event is produced by a user and a first coarse evaluation for a sign of operator control is performed and a predetermined number of sensor measured values are progressively buffer-stored in a buffer store wherein detection of a sign of operator control initiates a fine evaluation of the sensor measured values to verify the occurrence of an operator control event at an initiation time. The fine evaluation is based on the buffer-stored sensor measured values and on subsequent sensor measured values, so that the fine evaluation includes sensor measured values both before and after the initiation time.

Abstract: The invention specifies an anti-trapping device, comprising a motor for driving a pivotable actuating element of a motor vehicle, a sensor for contactlessly identifying an obstacle in the way of the actuating element with an electrode, which has a plurality of segments for producing an external electrical field with respect to a mating electrode and a control unit. The electrode extends in a radial direction with respect to the pivotable actuating element and is split in the radial direction into the plurality of segments, which can each be evaluated separately for the purpose of generating an interference signal. The control unit is designed to drive the motor as a function of an interference signal from one of the segments. Such an anti-trapping device has particularly high flexibility when driving the pivotable actuating element if an obstacle in the way of the pivotable actuating element has been detected.

Abstract: A capacitive sensor detects an object, in particular detects a collision in the case of a movable vehicle part. The sensor has an electrode arrangement which contains at least one sensor electrode. The sensor also has an evaluation circuit which is connected downstream of the sensor electrode and is intended to process a reception signal generated in the sensor electrode. In this case, the evaluation circuit contains a transimpedance amplifier which has a device for compensating for the frequency response.

Abstract: A method measures a capacitance. According to the method, a first detection measurement for the capacitance which is to be measured is detected by a first measurement method during a first measurement phase. In this case, a second measurement phase is started when the first detection measurement satisfies a transition criterion. A second detection measurement for the capacitance which is to be measured is detected during the second measurement phase by a second measurement method which differs from the first measurement method. The second measurement method has higher measurement accuracy than the first measurement method but also greater energy expenditure.

Abstract: A capacitive sensor unit is not susceptible to failure and remotely actuates a door of a vehicle. The sensor unit contains an electrode assembly having an elongated sensor electrode and a supply line for electrically connecting the sensor electrode to an evaluation unit. The supply line is surrounded by a shield. An additional ground conductor, which is electrically conductively connected to the shield over the entire length of the supply line, is connected in parallel to the supply line.

Abstract: A capacitive sensor unit is disposed for contactlessly actuating a vehicle door. The sensor unit has an electrode assembly with at least three electrodes that are disposed in a spaced relationship. The electrodes include a first transmitting electrode, a second transmitting electrode, and a receiving electrode arranged between the two transmitting electrodes.

Abstract: A method for detection of a control event by a sensor arrangement having at least one sensor element and a sensor controller is described. The sensor controller digitizes sensor signals into sensor measured values. An operator control event is produced by a user and a first coarse evaluation for a sign of operator control is performed and a predetermined number of sensor measured values are progressively buffer-stored in a buffer store wherein detection of a sign of operator control initiates a fine evaluation of the sensor measured values to verify the occurrence of an operator control event at an initiation time. The fine evaluation is based on the buffer-stored sensor measured values and on subsequent sensor measured values, so that the fine evaluation includes sensor measured values both before and after the initiation time.

Abstract: 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 (?) of the pivotable actuating element (6) and to track the triggering threshold (A).

Abstract: A method for operating the electrical system of a motor vehicle having a control unit with an operating mode and an energy-saving standby mode is described. A wake-up operator control event is detected by a sensor and has an associated time interval from the preceding wake-up operator control event. The time interval is ascertained when a wake-up operator control event is detected, and the control unit is woken up or not woken up. Each wake-up operator control event has an associated switch-off indicator which is ascertained each time a wake-up operator control event is detected, and the control unit is woken up or not woken up as a function of the level of the switch-off indicator with reference to a switch-off threshold. A change in the current switch-off indicator relative to the preceding switch-off indicator is all the greater the smaller the current time interval.

Abstract: An apparatus and production method for a watertight capacitive sensor unit is provided. Accordingly, a carrier, approximately U-shaped in cross section, is made from a water-impermeable material. At least one electrode strip is placed in an interior space of the carrier along the longitudinal extension of the carrier. The interior space is filled with a hardening filler material in such a way that the electrode strip is sealed outwardly watertight.

Abstract: An Anti-pinch sensor, in particular for detecting an obstacle in the path of an actuator of a motor vehicle is provided. The anti-pinch sensor includes a first measurement electrode and a second electrically isolated measurement electrode spaced a distance from the first measurement electrode, wherein the first measurement electrode is designed to generate an external electric field with respect to the second measurement electrode, and wherein the first and second measurement electrodes are elastically supported relative to an electrically isolated ground electrode. In addition, a sensor device having such an anti-pinch sensor is disclosed. The anti-pinch sensor is suitable as both a contactless and a tactile sensor. Detection of surface deposits of contaminants or water is easily possible.

Abstract: a method and a device for detecting the rotation of a brush-operated d.c. motor comprising a number of winding branches which are electrically connected between brushes, during the operation of the motor, by means of plates, according to the rotational angle. According to the invention, an alternating voltage signal is modulated on the basis of a supply direct voltage for the brushes, by which means the course of the complex resistance of the direct current motor is determined and used for the detection of rotation. In this way, the invention enables a cost-effective rotation detection that can be used in motor vehicle technology without requiring additional mechanical components.

Abstract: An adjusting device for a headrest of a motor vehicle seat is specified. The adjusting device comprises, in a first variant, a capacitive proximity sensor integrated into or designed for integration into the headrest having at least three transmitting electrodes spaced apart vertically from one another and having a common receiving electrode. In a second variant of the adjusting device, the proximity sensor has at least three receiving electrodes spaced apart vertically from one another and has a common transmitting electrode. In both variants, the adjusting device also has an actuating drive for motorized vertical adjustment of the headrest relative to the vehicle seat, as well as a control unit.

Abstract: An anti-pinch sensor (10,13,40,45) with an associated evaluation circuit (33,48) is disclosed, which is suitable in particular for recognizing an obstacle in the way of an actuating element (e.g., 9) of a motor vehicle (1). The anti-pinch sensor (10,13,40,45) comprises a sensor body, which contains a sensing electrode (17), for generating an external electric field with respect to a counter-electrode (25), and a pressure sensor (34,34?) decoupled from the sensing electrode (17), for detecting a mechanical pressure.

Abstract: A sensor device for determining the deviation of the position of a head support of a motor vehicle seat from a target position is provided that includes a capacitative proximity sensor that can be integrated in a head support, having two transmitting electrodes disposed at a vertical distance from each other and a common receiving electrode.

Abstract: An apparatus and production method for a watertight capacitive sensor unit is provided. Accordingly, a carrier, approximately U-shaped in cross section, is made from a water-impermeable material. At least one electrode strip is placed in an interior space of the carrier along the longitudinal extension of the carrier. The interior space is filled with a hardening filler material in such a way that the electrode strip is sealed outwardly watertight.

Abstract: 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 (?) of the pivotable actuating element (6) and to track the triggering threshold (A).