Valeo Systemes D'essuyage

Valeo Electrical Systems, Inc.

James Jackson

Harald Klode

Frank R Lombardo

Gregory Hickey

Christopher Jones

Eric Hospital

Eugene B Porter

A method for controlling a wiper motor of a wiper device for a motor vehicle windshield. A control unit implements the inventive method and a wiper device for a motor vehicle windshield. The control unit controls an electric motor which powers a wiper blade on a windshield sweeping between two end-of-travel zones. In each end-of-travel zone, there is a software end-of-travel stop which is moved by a predetermined value after each passage on the software stop, the latter always remaining in its test zone, thereby providing self-adaptation of the sweeping limits in time. The invention also enables the detection of the presence of obstacles on the wiper blade path.

Method for controlling a wiper motor

A windshield wiper drive apparatus includes a non-electrical contact position detector of the wiper inwipe position. A magnet is rotated by the wiper drive gear and moves past a magnetically responsive sensor mounted within the drive housing to detect the inwipe position of the wipers. In one aspect, a rotatable cam is mounted in the housing and carries the magnet. Interengaging members on the drive gear and the cam cause rotation of the cam in only the normal direction of rotation of the drive gear. Any back movement of the drive gear through interfering contact of the wiper blades with an obstruction separates the drive gear interengaging member from the cam preventing movement of the cam.

Non-reversing windshield wiper motor park switch

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Paris, France

James Jackson