| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an inexpensive automatic leveling device for a headlamp usable over a long period by reducing a driving frequency of an actuator. SOLUTION: In this automatic leveling device having a headlamp having the optical axis L vertically tilting to a car body by driving of an actuator 10, a vehicle speed sensor 12 and a storage part 20 for storing pitch angle data detected by a vehicle height sensor 14 and having a control part 16 for controlling the actuator 10 so that the optical axis L becomes a prescribed inclination to a road surface on the basis of the detected pitch angle data, the storage part 20 is constituted so as to store plural data up to a pich angle before a prescribed time from the newest pitch angle; the control part 16 controls the driving of the actuator 10 at a specific interval on the basis of the newest pitch angle during stopping, and corrects and controls the driving of the actuator 10 on the basis of a vehicle pitch angle before stepping an accelerator at departure.</p> |
