To provide an optical axis control system of headlight capable of properly performing optical axis adjustment with respect to a gradient change of a road on which a vehicle travels.SOLUTION: An optical axis control system 10 of headlight for controlling an optical axis of light radiated toward the front of a vehicle from a headlight in a manner variable in the vertical direction of the vehicle includes: an information acquisition part 20 for acquiring location information S1 showing a location on a road where a vehicle travels, and gradient information S2 showing the gradient of the road in the travelling direction of the vehicle; and an optical axis adjustment part 30 for adjusting an optical axis based on the location information S1 and the gradient information S2 acquired by the information acquisition part 20. The optical axis adjustment part 30 starts moving an optical axis in a direction in which the gradient of the road changes before the location where the gradient change of the road starts, and while returning the optical axis in the opposite direction from the direction in which the gradient of the road changes before the location where the gradient change of the road ends, and adjusts the optical axis in accordance with the location where the gradient change of the road ends.SELECTED DRAWING: Figure 2

    【課題】車両が走行する道路の勾配変化に対して光軸調整を適切に行うことを可能とした前照灯の光軸制御システムを提供する。【解決手段】前照灯から車両の前方に向けて照射される光の光軸を車両の上下方向において可変に制御する前照灯の光軸制御システム10であって、車両が走行する道路上の位置を示す位置情報S1と、車両の進行方向における道路の勾配を示す勾配情報S2とを取得する情報取得部20と、情報取得部20が取得した位置情報S1及び勾配情報S2に基づいて光軸を調整する光軸調整部30とを備え、光軸調整部30は、道路の勾配変化が開始される位置の手前から道路の勾配が変化する方向への光軸の移動を開始し、道路の勾配変化が終了する位置の手前から道路の勾配が変化する方向とは反対方向に光軸を戻しながら、道路の勾配変化が終了する位置に合わせて光軸を調整する。【選択図】図2


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    Title :

    OPTICAL AXIS CONTROL SYSTEM AND OPTICAL AXIS CONTROL METHOD OF HEADLIGHT, AND VEHICLE, OPTICAL AXIS CONTROL PROGRAM


    Additional title:

    前照灯の光軸制御システム及び光軸制御方法、並びに車両、光軸制御プログラム


    Contributors:

    Publication date :

    2018-12-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein



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