Electricity: motive power systems – Periodic – repetitious or successive operations control of... – Variable periods or intervals between controlling operations
Patent
1995-09-18
1997-08-05
Ip, Paul
Electricity: motive power systems
Periodic, repetitious or successive operations control of...
Variable periods or intervals between controlling operations
318443, 318483, 318DIG2, B60S 108
Patent
active
056546173
ABSTRACT:
A windshield wiper controller 10 is provided for automatically regulating the operating speed of a motor powering a windshield wiper. An automatically set or manually set wiper speed selector 36, 48 is provided for selecting a wiper speed setting to initially control the operating speed of the windshield wiper motor. A sensor 22 senses the actual speed of the windshield wiper movement relative to the windshield. Controller 32 is responsive to the sensor 22 and automatically generates a wiper speed increase signal to the selector when the sensed wiper speed is less than a selected value, and similarly generates a wiper speed reduce signal when the sensed wiper speed is greater than a selected value. The wiper speed sensor 22 may include a magnet 20 which acts as a triggering mechanism outputting a signal from the wiper sensor. A timer 44 measures the time interval between at least a substantial portion of the forward wiping motion and the return wiping motion. The windshield wiper controller 10 may also include a light controller 40 and a rear light blinker 42 for automatically activating the vehicle driving lights and rear lights to increase the visibility of the vehicle to other drivers.
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Technical Highlight: Cadillac CV-RSS, 1 p.
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