Automatic control system for automobile lights
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United States of America Patent
Stats
-
May 12, 1987
Grant Date -
N/A
app pub date -
Aug 14, 1985
filing date -
Aug 14, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The control system is for automatic operation of vehicle lights. It has two distinct switching points corresponding to two predetermined ambient light levels. The first switching point is for turning on the vehicle lights such as after dusk. The second switching point is for turning off the vehicle lights such as after sun rise. The system is free of the chattering problem in common automatic light controls and it is not affected by slight variations in the ambient light condition. It is simple in structure and can be quickly and easily installed in a vehicle. The system includes a timer to delay its actuation momentarily when it is first energized so as to allow full current from the battery to be used for starting the engine. It also includes a temperature compensation to allow for ambient temperature variations.
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