Windshield wiper control
AssigneeITT Industries, Inc.
InventorsGunther Gille, Horst Goertler, Anton Lill, Hans Prohaska, Horst Rachner, Thomas Theurer
Life of this patent
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Abstract
A windshield wiper assembly comprising two windshield wipers each driven by a separate motor is described in which a control provides switching signals for switching on and off the wiper motors so as to achieve relatively smooth running of the wipers. In particular wiping areas one motor is continuously switched on and only the other motor, in dependence on the difference of the angular positions of the two wipers, is controlled such that collision of the wipers is prevented when the wiping areas overlap.
Claims22
A windshield wiper assembly for motor vehicles comprising:
- two windshield wipers:
- two motors, each motor driving one of said two wipers in pendulum-fashion between a parking position and a reversing position;
- each motor comprising a sensor for detecting particular angular positions of the windshield wipers;
- and
- a control device to which the signals from each said motor sensor are conducted, said control device providing control signals for energizing and deenergizing said motors such that in a first wiping area the motor of a first one of said wipers is continuously energized independently of the angular positions of said two wipers and only the motor of the second of said two wipers is energized and deenergized in dependence on the angular position of both wipers.
Dependencies are inferred from the claim text.