| 摘要 |
<p>PURPOSE: To provide an automatic light controller (speed sensing automatic headlamps lighting on/off device) for automatically turning on the headlamps when a car starts to move and the tires are rotated by the specified angle, for continuously turning on the light in traveling, and for automatically turning off the light when the headlamps are continuously turned on for the specified seconds (the optional time can be set) after the car is decelerated and completely stopped. CONSTITUTION: When the tires are rotated by the angle of 45 deg., a pulse from a sensor unit 1 for outputting a high or low pulse is guided to an oscillator 2 capable of performing the retrigger. This oscillator 2 forms one high pulse for five minutes (the optional time can be set) by the trigger pulse. The output of the oscillator 2 is made high for five seconds after the car starts to move, during traveling and after the car is stopped. The output of the oscillator 2 is guided to a headlamp current control circuit 3, and turning-on of the headlamps is performed when the output of the oscillator 2 is high, and turning- off is performed when the output is low.</p> |
