Opening frame e.g. electrically/manually actuated rear hatch, driving device for motor vehicle, has wheels, where reduction ratio between wheels is chosen such that angular positions of wheels are identical between end positions of frame

摘要

The device has an angular position detection system for detecting angular positions of toothed input and output wheels (5, 6) that rotatably drive an opening frame of a vehicle i.e. motor vehicle. A reduction ratio between the wheels is chosen such that the angular positions of the wheels are identical between end positions such as completely closed and open positions, of the opening frame of the vehicle. The system has magnetic field detectors (11, 12) i.e. analog sensors, that detect magnetic fields emitted by respective magnets (7, 8). An independent claim is also included for a gear motor comprising an opening frame driving device.