Windshield wiper system activated by sensing rainwater

Details Windshield wiper system activated by sensing rainwater Windshield wiper system activated by sensing rainwater

2005-10-25

2005-10-25

Martin, David (Department: 2837)

Electricity: motive power systems

Electric motor with nonmotor driving means

Manual driving means

C318S443000, C318S444000, C318S483000, C318SDIG002, C015S250001, C015S250120

Reexamination Certificate

active

06958585

ABSTRACT:
A windshield wiper system activated by sensing rainwater via a rain sensor placed inside the wiping pattern when a multifunction switch lever is in automatic mode. A rain sensor module activates a relay for low speeds and/or a relay for high speeds depending on the detected amount of rainwater. A first voltage detecting means detects battery voltage, a second voltage detecting means detects voltage of an automatic signal, and a microcomputer adjusts the sensitivity of the rain sensor based on a voltage ratio of the automatic signal voltage and the battery voltage. A reformed wiring structure connects the multifunction switch and the rain sensor module, which contributes to a reduction of the weight and cost of the wiring harness. The sensitivity of the rain sensor is not affected by a voltage change.

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