Head lamp device for vehicle
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorShinichirou Gotou
Life of this patent
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Abstract
A head lamp device for a vehicle in which a light distribution can be properly adjusted in response to a state of a road or a running environment and visibility can be improved is provided. The head lamp device for a vehicle capable of adjusting a lighting region in a forward direction of the vehicle comprises proper vehicle position sensing means for sensing a proper vehicle running position in a lateral direction of a road, and control means for calculating a distance from the proper vehicle running position to a center line on the road and adjusting a lighting region of the head lamp in such a way that the lighting region is expanded more and more toward the center line as the calculated distance is longer and longer.
Claims20
A head lamp device for a vehicle capable of adjusting a lighting region in a forward direction of the vehicle comprising:
- proper vehicle position sensing means for sensing a proper vehicle running position in a lateral direction of a road;
- and
- control means for calculating a distance from said proper vehicle running position to a center line on the road and adjusting a lighting region of the head lamp such that the lighting region is more expanded toward the center line as said distance is longer.
A head lamp device for a vehicle capable of adjusting a lighting region in a forward direction of the vehicle comprising:
- running lane sensing means for sensing a proper vehicle running lane in a lateral direction of a road;
- and
- control means for calculating number of lanes ranging from the running lane of said proper vehicle to a center line on the road and adjusting a lighting region of the head lamp such that the lighting region is more expanded toward the center line as the number of said lanes is increased.
A head lamp device for a vehicle capable of adjusting a lighting region in a forward direction of the vehicle comprising:
- urban area sensing means for sensing if an area where the vehicle runs is an urban area;
- steering angle sensing means for sensing a steering angle of a steering device;
- and
- control means for determining an adjusting amount of a lighting region in response to said sensed steering angle and expanding a predetermined reference non-sensitive range of the lighting region to the steering angle when the vehicle runs in the urban area.
A head lamp device for a vehicle capable of adjusting a lighting region in a forward direction of the vehicle comprising:
- dwelling area sensing means for sensing if an area where the vehicle runs is a dwelling area;
- and
- control means for controlling a lateral width of the lighting region to be larger than a predetermined reference value when the vehicle runs in the dwelling area.
A head lamp device for a vehicle capable of adjusting a lighting region in a forward direction of the vehicle comprising:
- central separating zone sensing means for sensing if a central separating zone for separating a lane where a proper vehicle runs from a lane where an opposing vehicle runs is present;
- and
- control means for adjusting an optical axis of said head amp to an upward orientation when the vehicle runs on a road having the central separating zone so as to increase a far reaching side distance of the lighting region.
Dependencies are inferred from the claim text.