Abstract: A device (10) for the detection of quadrature signals of a signal unit (11; 21) has a common power supply line (VBATT_A & B) and a common ground wire (GND), and emits at least two out-of-phase square wave signals (IA, IB; IS, ID) during operation for analyzing the same in an analysis unit (16), wherein both out-of-phase square wave signals (IA, IB; IS, ID) are applied to the common power supply line (VBATT_A & B) at different amplitudes, wherein the two out-of-phase square wave signals (IA, IB; IS, ID) are modulated onto the supply current (I0)), and wherein the analysis unit (16) is or can be connected to the power supply line.

Abstract: In a method and a device for increasing the precision of the position determination of a motor-driven closure element of a vehicle, the data corresponding to a force-displacement reference curve and the data corresponding to a force-displacement actual value curve are used, a correlation function is calculated, the maximum thereof is found, and the counter status of a position counter is corrected by using the position offset associated with the determined maximum.

Abstract: For the purpose of detecting a jam during the adjustment of a component of a motor vehicle using an adjustment drive, wherein measured values related to the adjustment force (F) are compared to a threshold value (FREF) and when the threshold value is reached, the adjusting movement is slowed or stopped, and optionally reversed, it is proposed that the component speed or a parameter correlated therewith is detected and the threshold value (FREF) modified accordingly.

Abstract: In order to determine a drive force (FAct) produced by an electric motor, the motor current (Ia) supplied to the electric motor (10) from a power supply source (32) is measured and a force is calculated from this; in addition, the motor voltage (UBat) applied to the electric motor (10) is measured, and drive force fluctuations which result from voltage fluctuations that occur during operation of the power supply source are compensated for, with at least one compensation force component being determined which is based on the measured motor voltage (UBat), including voltage fluctuations.

Abstract: In a method and a device for increasing the precision of the position determination of a motor-driven closure element of a vehicle, the data corresponding to a force-displacement reference curve and the data corresponding to a force-displacement actual value curve are used, a correlation function is calculated, the maximum thereof is found, and the counter status of a position counter is corrected by using the position offset associated with the determined maximum.

Abstract: A device (10) for the detection of quadrature signals of a signal unit (11; 21) has a common power supply line (VBATT_ A & B) and a common ground wire (GND), and emits at least two out-of-phase square wave signals (IA, IB; IS, ID) during operation for analyzing the same in an analysis unit (16), wherein both out-of-phase square wave signals (IA, IB; IS, ID) are applied to the common power supply line (VBATT _A & B) at different amplitudes, wherein the two out-of-phase square wave signals (IA, IB; IS, ID) are modulated onto the supply current (I0)), and wherein the analysis unit (16) is or can be connected to the power supply line.

Abstract: For the purpose of detecting a jam during the adjustment of a component of a motor vehicle using an adjustment drive, wherein measured values related to the adjustment force (F) are compared to a threshold value (FREF) and when the threshold value is reached, the adjusting movement is slowed or stopped, and optionally reversed, it is proposed that the component speed or a parameter correlated therewith is detected and the threshold value (FREF) modified accordingly.

Abstract: In order to determine a drive force (FAct) produced by an electric motor, the motor current (Ia) supplied to the electric motor (10) from a power supply source (32) is measured and a force is calculated from this; in addition, the motor voltage (UBat) applied to the electric motor (10) is measured, and drive force fluctuations which result from voltage fluctuations that occur during operation of the power supply source are compensated for, with at least one compensation force component being determined which is based on the measured motor voltage (UBat), including voltage fluctuations.