| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device for vehicular illumination capable of restraining variations in the brightness of residual lamps, when a lamp is blown out while restraining the cost. SOLUTION: The vehicular illumination control device 1 performing a DRL (daytime running light) lighting vehicular illumination lamp during daytime is provided with a treatment of a step 2 and a step 3 performed by a CPU 2 and an FET 4 driving a plurality of lamps 6, 7 by a PWM control, a light-monitoring part 8 and the CPU 2 detecting the drive state and abnormality of the lamp 6, 7, and by the CPU 2 for adjusting the drive frequency so that residual output becomes equal, when the lamps 6, 7 become abnormal. COPYRIGHT: (C)2007,JPO&INPIT |
