Vehicle headlamp apparatus

Details Vehicle headlamp apparatus Vehicle headlamp apparatus

2006-06-06

2006-06-06

Nguyen, Tai T. (Department: 2632)

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

C340S686100, C340S686300, C362S464000, C362S465000, C362S466000, C362S467000, C362S525000, C362S526000

Reexamination Certificate

active

07057504

ABSTRACT:
In a headlamp apparatus comprising a sub-CPU integrally provided on a headlamp for controlling an optical axis direction changing operation and a main CPU for sending out to the sub-control circuit a control signal for changing the direction of the optical axis, the sub-CPU comprises a power-on resetting circuit of a simple configuration comprising a capacitor and a resistor. When the main CPU detects an abnormality in the sub-CPU, a power supply is temporarily cut off by a power supply control means, and the sub-CPU is reset by a power-on resetting circuit. An abnormality triggered by a runaway of the sub-CPU can be resolved so that the sub-CPU can be restored to a normal condition as quickly as possible.

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