Patent ID: 7423400

Claim:
A system for controlling a rotational closure system of a vehicle, said system comprising: a drive mechanism having electrical contacts to receive a drive signal to cause said drive mechanism to move a rotational closure system of a vehicle between an open and a closed position in response to the drive signal; a controller having electrical outputs electrically coupled to the electrical contacts of said drive mechanism and electrical inputs to receive feedback signals; and an angle sensor disposed on the rotational closure system and electrically coupled to the electrical inputs of said controller, said controller generating a drive signal to drive said drive mechanism and said angle sensor generating an angle signal having a digital pulsewidth modulation form with a duty cycle based on the angle of the rotational closure system, the angle signal being fed back to said controller via the electrical inputs and operable to cause said controller to alter the drive signal while said drive mechanism is moving the rotational closure system between the open and closed positions.