Vehicular light distribution control system and vehicular light distribution control method

Abstract

A vehicular light distribution control system (100) which controls a light distribution of headlights (3) includes a vehicle detecting part (10) which detects an anterior vehicle driving in front of an occupant's vehicle, an unirradiated region setting part (12) which sets a region where the anterior vehicle detected by the vehicle detecting part (10) exists as an unirradiated region, a vehicle motion estimating part (13) which estimates an ensuing motion of the anterior vehicle detected by the vehicle detecting part (10), and an unirradiated region adjusting part (14) which adjusts a size of the unirradiated region set by the unirradiated region setting part (12) depending on an estimated result of the vehicle motion estimating part (13).

Description

technical field [0001] The present invention relates to a vehicle light distribution control system and a vehicle light distribution control method for detecting a vehicle running in front of the vehicle and controlling the light distribution of the headlamp according to the existing position thereof, and in particular to preventing driving of a vehicle ahead A light distribution control system for a vehicle that dazzles passengers and a light distribution control method for a vehicle. Background technique [0002] Conventionally, there is known a vehicle headlamp device that uses a camera to detect a preceding vehicle running in front of the host vehicle, and controls the light distribution of the headlamp according to its existing position (for example, refer to Patent Document 1). [0003] The headlamp device for a vehicle considers the installation error and detection error of the camera device, or the component tolerance and installation error of the headlight unit, in ...

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Problems solved by technology

[0007] However, the vehicular headlamp device of Patent Document 1 only sets an enlarged area with a predetermined edge on a certain partial area in order to estimate whether or not there is a vehicle ahead in a certain partial area, or detects the partial area. At the same time as the horizontal moving speed of the vehicle in front, the timing of the irradiation and non-irradiation of the partial area is changed, and the size of the partial area where the irradiation and non-irradiation are switched is not changed. When there is a front vehicle in a part of the area, the light-emitting elements related to the part of the area are turned off

[0008] Therefore, as long as the vehicle headlamp device of Patent Document 1 detects or estimates that the preceding vehicle is present in the partial region regardless of the inter-vehicle distance between the own vehicle and the preceding vehicle, the entire partial region is set as a non-irradiation region, Therefore, in the case of a large inter-vehicle distance, the required area is set as a non-irradiated area. In addition, in the case of a small inter-vehicle distance, it is possible to irradiate an area that should have been a non-irradiated area and make the vehicle in front of drivers feel dazed

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