| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a headlight light control device that changes irradiation direction of a headlight so as not to give discomfort to a driver. <P>SOLUTION: A speed of a vehicle 40 is acquired from a speed detecting section 30. A threshold of frequency of switching irradiation direction of the headlight 60, corresponding to the speed, is set. An appearance frequency of a light source 50 detected by a light source detection unit 10 is detected. When the appearance frequency of the light source 50, which has been detected, within a predetermined period of time reaches a predetermined threshold (switching frequency threshold) or above, low beam of the headlight 60 is selected. When a predetermined period of time (switching prohibition time T<SB POS="POST">P</SB>) elapses after the low beam of the headlight 60 is selected, high beam of the headlight 60 is selected. <P>COPYRIGHT: (C)2013,JPO&INPIT |
