| 摘要 |
<p>PROBLEM TO BE SOLVED: To early visualize a track condition in the steering direction by selecting an output signal value taking a larger headlight swing angle against a steering angle out of a plural number of the output signal values to correspond to each of bit patterns of an input digital signal of a D/A converter. SOLUTION: A plural number of output signal values to correspond with each of bit patterns of an input digital signal of a D/A converter are previously set, and one of a plural number of the output signal values is selected by an irradiadiating direction moving angle changeover switch 10. Thereafter, the switch 10 is actuated to change by detecting high speed steering by a high speed steering detection/switch control circuit 16, and an output signal value taking a larger frontlamp swing angle against a steering angle is selected out of a plural number of the output signal values to correspond with each of the bit patterns of the input digital signal of the D/A converter 5. Consequently, it is possible to visualize a track condition in the steering direction early.</p> |
