Patent ID: 6690130
Filing Date: 2004-02-10
Classification: B60S

Abstract:
A windshield wiper system for cleaning a windshield of a motor vehicle, comprising at least one wiper that can be shifted between two terminal positions and is driven by an electric drive motor, and having a control unit, which as an input variable processes the output signals of a rain sensor as well as the switching signals of a manually controllable switch means and as an output variable controls a supply voltage of the electric drive motor and thus a wiper speed, and as a function of a rain quantity detected by the rain sensor (2), the at least one wiper (8) can be operated with variable intermittent interval times and at variable wiper speeds, so that precisely one wiper speed and precisely one intermittent interval time are associated with each measured rain quantity, wherein the at least one wiper (8) is movable in an intermittent mode and in at least one continuous mode, and wherein the at least one wiper (8) moves in the intermittent mode with a lower speed than when operating in a slowest mode of said at least one continuous mode.