Apparatus and a method for controlling a wiper

Details Apparatus and a method for controlling a wiper Apparatus and a method for controlling a wiper

1987-03-20

1988-04-26

Ro, Bentsu

Electricity: motive power systems

Automatic and/or with time-delay means

Moisture content or wetness

318444, 318DIG2, 1525017, B60S 108

Patent

active

047407352

ABSTRACT:
An apparatus for controlling a windshield wiper in accordance with the amount of rain falling on the windshield. The apparatus includes a rain sensor for detecting an amount of rain positioned thereon, a comparator for comparing the output of the rain sensor with one of first and second signals representing predetermined amounts of drops of water and producing a second output signal, a memory for memorizing the second output signal, an exchanger for exchanging one of the first and second signals for the other one, and an actuator for actuating the wiper at one of high and low wiping speeds. Further, the comparator produces an output according to whether the detected amount of rain is equal to or greater than one of the first and second predetermined amounts of drops of water.

REFERENCES:
patent: 3649898 (1972-03-01), Inoue
patent: 3826979 (1974-07-01), Steinmann
patent: 4037146 (1977-07-01), Kondo
patent: 4107588 (1978-08-01), Seiler
patent: 4355271 (1982-10-01), Noack
patent: 4389603 (1983-06-01), Kogawa et al.
patent: 4463294 (1984-07-01), Gibson

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