Patent ID: 6396230
Filing Date: 2002-05-28
Classification: B60S,Y10S

Abstract:
A windshield wiping device comprising:a manually operated switching device; at least one wiper displaceable between a first end position and a second end position, the at least one wiper having a first velocity when the switching device is in a first switch position, the at least one wiper having a second velocity when the switching device is in a second switch position, the second velocity being greater than the first velocity, the at least one wiper moving at the first velocity while the switching device is in the second switch position each time the at least one wiper is near an upper end position and a lower end position; an electrical drive motor driving the at least one wiper, the electrical drive motor including a first contact disk system, the first contact disk system rotating synchronously with revolutions of the electrical drive motor, the first contact disk system providing periodic switching between the second velocity and the first velocity; and a control device processing a current wiper position and switching signals of the switching device via input variables, the control device controlling a supply voltage of the electrical drive motor and a velocity of the at least one wiper via an output variable; wherein the electrical drive motor further includes a second contact disk system rotating synchronously with the revolutions of the electrical drive motor, the second contact disk system providing position-precise switching off of the at least one wiper in a park position after the switching device is placed in an off position.