| 摘要 |
PURPOSE: A device for automatically washing a headlamp is provided to improve visibility by automatically checking the pollution of the headlamp and operating a washer injection port. CONSTITUTION: A couple of temperature sensors(5) are installed at the glass of a headlamp(2), and detects the inner temperature of the headlamp. A speed sensor(6) detects the speed of a vehicle. A lamp detecting sensor(7) detects the operation state of the headlamp. A control unit(8) receives a signal from the temperature sensors when the headlamp is turned on, and outputs a drive signal to a headlamp washer driving unit(9) if the local temperature deviation of the glass is more than a reference value. The headlamp washer driving unit moves a washer injection port(4) installed at the front of the headlamp, and selectively injects washer liquid into the headlamp.
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