Headlight unit for vehicles that lean into turns, and method for illumination

摘要

The present teaching provides a headlight unit for vehicles that lean into turns and a method for illumination of forward and outward area of vehicles that lean into turns. The headlight unit can suppress the target view of an operator from appearing dark in the process of increasing or decreasing the lean angle of the vehicle. The headlight unit for a vehicle that leans into turns includes a first light source, and a plurality of second light sources. The plurality of second light sources has illumination ranges positioned outward of an illumination range of the first light source and at different positions relative to the vertical direction of the vehicle in the upright state of the vehicle. The brightnesses of the second light sources vary according to the lean angle of the vehicle. The second light sources have predetermined brightnesses when the lean angle of the vehicle is at a reference value individually set for each of the second light sources, and wherein the illumination ranges of the second light sources are positioned further upward for the second light sources having larger reference values in the upright state of the vehicle. When the lean angle of the vehicle reaches a specific value greater than the reference value set for one of the second light sources, and the first light source and an upper second light source having a larger reference value than the one of the second light source are on, the one of the second light sources becomes darker than the predetermined brightness.