Abstract: A method is disclosed for detecting the activation of a coupling in a damper actuator, the coupling engaging a drive motor and an adjustable damper with each other, so that the damper can be adjusted by means of the drive motor, and the engagement between the drive motor and the damper being disengaged if a force or a momentum acting on the damper exceeds a maximum value. The method comprises the following steps: detecting the indication of an adjustment rate, in particular a rotary speed of the drive motor; determining a gradient of the adjustment rate, in particular a rotary speed gradient, by the indication of the adjustment rate; determining the activation of the coupling by determining whether the determined gradient exceeds or falls below a predetermined threshold value of the gradient.

Abstract: An adjustment device and a corresponding method for a movable body part of a vehicle, has an actuator for adjusting the movable body part and has a control device for activating the actuator in an operating state. The control device switches from the operating state to an idle state if no adjustment of the movable body part occurs within a defined period of time. A manual adjustment of the movable body part switches the control device back to the operating state from the idle state.

Abstract: A method is disclosed for detecting the activation of a coupling in a damper actuator, the coupling engaging a drive motor and an adjustable damper with each other, so that the damper can be adjusted by means of the drive motor, and the engagement between the drive motor and the damper being disengaged if a force or a momentum acting on the damper exceeds a maximum value. The method comprises the following steps: detecting the indication of an adjustment rate, in particular a rotary speed of the drive motor; determining a gradient of the adjustment rate, in particular a rotary speed gradient, by the indication of the adjustment rate; determining the activation of the coupling by determining whether the determined gradient exceeds or falls below a predetermined threshold value of the gradient.

Abstract: An adjustment device and a corresponding method for a movable body part of a vehicle, has an actuator for adjusting the movable body part and has a control device for activating the actuator in an operating state. The control device switches from the operating state to an idle state if no adjustment of the movable body part occurs within a defined period of time. A manual adjustment of the movable body part switches the control device back to the operating state from the idle state.