AUTOMATIC WINDSHIELD WIPER APPARATUS WITH RAINDROP DETECTOR FOR AUTOMOTIVE VEHICLES AND METHODS FOR AUTOMATICALLY CONTROLLING WIPER APPARATUS

摘要

A wiper apparatus comprises a wiper motor, a wiper switch, a moisture sensor for sensing presence of moisture, a vibration sensor for sensing a vibration caused by raindrops and a controller for actuating the wiper motor in accordance with output signals from the moisture sensor and the vibration sensor. The apparatus is free from the malfunction and works automatically by sensing even a drizzling rain.