A system and method are provided for detecting blockages during an automatic adjustment of a movable vehicle part in a motor vehicle equipped with an electric motor drive and an electronic control unit. The drive current as well as the movement speed of the drive are detected by the electronic control unit. When the movement speed increases above the normal level, the control unit suppresses the detection of a blockage event if a drive current increase required for the movement speed increase cannot be ascertained.

A scissor drive includes two legs which can be pivoted relative to one another about a pivot axis, each having a longitudinal axis and designed to be connected to an external component, and a motor/gear assembly that drives the relative pivoting movement of the two legs. The first leg includes a housing that is hollow at least in portions, a cavity defined in the hollow housing extending at least in portions along the longitudinal axis of the first leg, and the motor/gear assembly being received in the housing of the first leg at least in portions in the portion of the cavity that extends along the longitudinal axis of the first leg.

An adjusting device for a vehicle part which is movable relative to a body of a vehicle, includes a drive arrangement having a drive unit and a movement state sensor, an adjusting element which is displaceable relative to the drive arrangement via the drive unit and a control unit for controlling the drive unit. The control unit is designed to actuate the drive unit according to an actual movement state. The disclosure also relates to a motor vehicle having a body and a vehicle part movable relative to the body, which part is equipped with an adjusting device.

A scissor drive includes two legs which can be pivoted relative to one another about a pivot axis, each having a longitudinal axis and designed to be connected to an external component, and a motor/gear assembly that drives the relative pivoting movement of the two legs. The first leg includes a housing that is hollow at least in portions, a cavity defined in the hollow housing extending at least in portions along the longitudinal axis of the first leg, and the motor/gear assembly being received in the housing of the first leg at least in portions in the portion of the cavity that extends along the longitudinal axis of the first leg.