| 摘要 |
<p>PROBLEM TO BE SOLVED: To change the irradiation area by providing a control means for controlling an irradiation area changing means on the basis of the angle of irradiation, which is computed by an irradiation angle computing means, so as to change the irradiation area. SOLUTION: At the time of controlling change of the irradiation area, wheel rotating speed LS, RS, which are input from a left and a right wheel speed sensors 20L, 20R to a distribution of luminous control ECU 10, are computed by a car speed computing means 11 and a turning radius computing means 14 of the distribution of luminous control ECU 10 so as to obtain the car speed V and the turning radius R. The computed turning radius R is input to an irradiation angle computing means 13 of the distribution of luminous control ECU 10, and the basic irradiation angleθ0 is computed. A left and a right rear wheel speed sensors 20L, 20R used for ABS provided in an automobile 1 are utilized so as to compute the irradiation angleθfor control of change of the irradiation area.</p> |
