WINDSHIELD WIPER SYSTEM ACTIVATED BY SENSING RAINWATER

摘要

A windshield wiper system activated by sensing rainwater adapted to dete ct rainwater via a rain sensor placed inside a wiping pattern of a windshield glass while a multifunction switch lever is in automatic mode, the system comprising a rai n sensor module for activating a relay for low speeds and/or a relay for high speeds depending on the detected amount of rainwater. There is further provided a first voltage detecting means for detecting a battery voltage, a second voltage detecting means for detecting a voltage of an automatic signal, and a microcomputer for adjusting the sensitivity of the rain sensor on the basis of a voltage ratio of the automatic signal voltage and the battery voltage. The present invention has a reformed wiring structure that connects the multifunction switch and the rain sensor module, which contributes to a reduction of the weight of a wiring harness, as well as the manufacturing cost. The sensitivi ty of the rain sensor is not affected by a voltage change, which may occur from variou s factors inside the vehicle.