| 摘要 |
<p>PROBLEM TO BE SOLVED: To adjust timing of lighting-on-and-off on an automatic light control device to desired timing by equipping a resistor to change timing of lighting-on- and-off of a car exterior lamp group and a meter gauge lighting lamps to desired timing on a drive circuit of the control device. SOLUTION: A timing means 8 to change each lighting-on-and-off timing of a small light 5 and a headlamp 6 connects it short, medium and long positions 8a-8c to each of resistors R6-R8. Additionally, in an automatic lighting-on-and-off control mode where a lighting switch 1 is on at an automatic switch opposition 1c and an ignition switch 11 is on, timing designated by the timing means 8 is read in a RAM 7f from a ROM 7e, and illuminance and a counter value of a timer 7h are read in. Thereafter, an illuminance value and a threshold are compared with each other, and when the illuminance value is higher than the threshold, the timer 7h is reset, and when it is lower, the timer 7h is cleared.</p> |
