Patent ID: 8156838

Claim:
A driving device for a hatch in a motor vehicle, the device comprising: a first fastening element which can be connected to a stationary structural component; a second fastening element which can be connected to a movable structural component; a spindle drive comprising a threaded spindle having an axis of rotation and a spindle nut arranged on the threaded spindle; a rotary drive comprising a driveshaft for rotating said spindle about said axis of rotation to move the second fastening element axially relative to the first fastening element; a spindle sensor for detecting revolutions of the spindle; a stroke detection sensor for continuously detecting the position of the movable structural component, the stroke detection sensor comprising a rotatable sensor element driven in rotation by the driveshaft and a stationary sensor element for continuously detecting the rotational position of the rotatable sensor element; and a gear reduction unit between the driveshaft and the rotatable sensor element.