| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To secure a forward visible distance in deceleration and to prevent the glare to oncoming cars in acceleration in controlling the irradiating direction of a head lamp for a vehicle. <P>SOLUTION: This irradiating direction control device 1 of the head lamp for the vehicle, comprises a vehicle attitude detecting means 2 for detecting the change of the vehicle attitude, an irradiation control means 3 for calculating the controlled variable for correcting an irradiation optical axis relating to the front lamp 5 by calculating a pitch angle indicating a vertical inclination attitude in the vehicle traveling direction on the basis of the detection information, and performing the calculation for correction to keep the constant forward visible distance of the vehicle by controlling a ground angle of the irradiation optical axis in deceleration (or acceleration) of the vehicle to be less (or more) than a standard ground angle of the irradiation optical axis in stopping the vehicle or constant-speed traveling, and a driving means 4 for changing the direction of the irradiation optical axis of the front lamp 5 by receiving the control command from the irradiation control means 3. The irradiation optical axis direction is controlled to keep the approximately constant forward visible distance in accordance with the pitch angle calculated on the basis of the vehicle attitude detection information. <P>COPYRIGHT: (C)2004,JPO</p> |
