Method of controlling a windshield wiper system

Details Method of controlling a windshield wiper system Method of controlling a windshield wiper system

1995-04-18

1996-04-16

Ro, Bentsu

Electricity: motive power systems

Periodic, repetitious or successive operations control of...

Variable periods or intervals between controlling operations

318DIG2, 3889075, 388916, B60S 108

Patent

active

055085954

ABSTRACT:
A method of automatically controlling the operating speed of a vehicular windshield wiping system based on an average rate of change in the value of a sensor signal indicative of the moisture on the windshield. The wiping system includes a motor for driving at least one wiper blade at a high speed and a low speed, and a sensor mounted to the windshield for monitoring a portion of the windshield wiped by the at least one wiper blade. The method includes determining an average rate of change in the sensor signal value over a predetermined period of time and operating the wiper system with the motor at the high speed based on the average rate of change in the sensor signal value. In one embodiment, the method includes wiper system is operated with the motor at the high speed based on the frequency with which the average rate of change in the sensor signal value drops below a first predetermined threshold.

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