Electricity: motive power systems – Automatic and/or with time-delay means – Movement – position – or limit-of-travel
Patent
1995-07-07
1997-05-27
Ip, Paul
Electricity: motive power systems
Automatic and/or with time-delay means
Movement, position, or limit-of-travel
318286, 318266, 318466, H02P 300, B60J 7043
Patent
active
056335717
ABSTRACT:
A device for operating a movable part of a motor vehicle, in particular a sliding roof, is provided with an electric motor for driving the movable part, an adjusting element for setting a desired position for the movable part, an incremental position sensor for detecting the actual position of the sliding roof, a counter in addition to the position sensor, the reading of which counter gives the actual position of the movable part, and an electronic control unit which, depending on the desired position and the counter reading, actuates the electric motor in order to move the movable part into the desired position. The control unit comprises detection means for detecting at least one limit position of the movable part, at which the movable part is unable to travel further, whereby, when said limit position is reached, the control unit resets the counter to a predetermined reading which corresponds to said limit position.
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Ip Paul
Vermeulen-Hollandia Octrooien II B.V.
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