Automotive headlamp apparatus having swivel function of lamp unit

A curvature estimation unit estimates the curvature of the road on which a vehicle is driving. A swivel angle setting unit is configured to perform a first mode in which a swivel angle of a lamp unit is set such that a light distribution pattern follows the travelling direction of the vehicle based...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Sasa, Manabu, Nakanishi, Yutaka, Yamazaki, Atsushi
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING ORSUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES INGENERAL BLASTING HEATING LIGHTING MECHANICAL ENGINEERING NON-PORTABLE LIGHTING DEVICES PERFORMING OPERATIONS SYSTEMS THEREOF TRANSPORTING VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A curvature estimation unit estimates the curvature of the road on which a vehicle is driving. A swivel angle setting unit is configured to perform a first mode in which a swivel angle of a lamp unit is set such that a light distribution pattern follows the travelling direction of the vehicle based on the curvature estimated by the curvature estimation unit, and perform a second mode in which a swivel angle of the lamp unit is set such that a shielded area created in a light distribution pattern follows the position of the vehicle detected by a vehicle position detector. A pattern determination unit determines a light distribution pattern such that the position of the vehicle detected by the vehicle position detector remains in the shielded area. A swivel angle setting unit performs the first mode when it is determined that the road is a curved road based on the curvature estimated by the curvature estimation unit, and performs the second mode when it is determined that the road is a straight road.