Patent ID: 8519625
Filing Date: 2013-08-27
Classification: B60Q

Abstract:
1. A light quantity control apparatus which controls light quantity of a light installed in a vehicle, comprising: a traffic jam information obtaining unit which obtains traffic jam information including information on positions and information on presence/absence of a traffic jam at each of the positions; an own vehicle position obtaining unit which obtains a position of an own vehicle; a traffic jam identifying unit which identifies whether or not the own vehicle is in a traffic jam based on the traffic jam information and the position of the own vehicle; a traffic-jam-time light quantity control unit which decreases the light quantity of the light compared with a normal time if the own vehicle is in a traffic jam; an urban district obtaining unit which obtains information on whether or not the own vehicle is in an urban district or near an intersection; and an urban-district-traveling-time light quantity control unit which decreases the light quantity of the light compared with a case where the own vehicle is in an area other than urban districts and intersections if the own vehicle is in the urban district or near an intersection, wherein whether or not the own vehicle is in the urban district is determined based on map data or density of buildings around the own vehicle.