Claims
- 1. An automatic optical-axis adjusting device for automatically adjusting a direction of an optical axis of at least one front light of a vehicle, said automatic optical-axis adjusting device comprising:
a steering angle measuring means for measuring a steering angle of a steering wheel of said vehicle; a response changing means for changing a response in swivel adjustment of said direction of said optical axis of said at least one front light of said vehicle based on an angular positional change rate of said steering angle measured with said steering angle measuring means; and a swivel control means for adjusting said direction of said optical axis of said at least one front light with respect to said steering angle measured with said steering angle measuring means based on a control angle obtained through said response changing means.
- 2. An automatic optical-axis adjusting device according to claim 1, wherein said response changing means changes said response by changing a filter.
- 3. An automatic optical-axis adjusting device according to claim 1, wherein said steering angle measuring means sets an insensible region around a neutral point of said steering angle.
- 4. An automatic optical-axis adjusting device according to claim 2, wherein said control angle is obtained by filtering said steering angle measured with said steering angle measuring means through said filter.
- 5. An automatic optical-axis adjusting device according to claim 2, wherein:
said filter is selected from a group consisting of a weaker filter and a stronger filter; said weaker filter is selected when said angular positional change rate of said steering angle exceeds a predetermined threshold value; and said stronger filter is selected when said angular positional change rate of said steering angle does not exceed said predetermined threshold value.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2000-303281 |
Oct 2000 |
JP |
|
CROSS REFERENCE TO RELATED APPLICATION
[0001] This application is based on and incorporates herein by reference Japanese Patent Application No. 2000-303281 filed on Oct. 3, 2000.