Method and apparatus for adjusting visibility of vehicle
First Claim
1. A method of adjusting visibility for vehicle by which forward visibility of a driver is adjusted, comprising the process of:
- controlling an illumination property of headlights of a vehicle so that a contrast between light and shade or a difference in color temperature forms a convex-shaped illumination configuration in a vehicle forward direction within an illuminated region ranging from a front end of the vehicle to a front end of the illuminated region.
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Accused Products
Abstract
An illumination property of headlights 4 is controlled so that light quantity or color in a belt-like region B including a virtual line segment A may be different from those in other regions, and thereby the virtual line segment A which uniformly inclines downward from an apex T deviated from a driver toward opposite sides in a vehicle-width direction is indicated on a road surface. The virtual line segment A thus indicated can suppress inclinations of forward visibility and also suppress the sway of ahead inclination angle when a vehicle turns, thereby stabilizing a driving posture of a driver and suppressing steering disturbance.
12 Citations
20 Claims
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1. A method of adjusting visibility for vehicle by which forward visibility of a driver is adjusted, comprising the process of:
controlling an illumination property of headlights of a vehicle so that a contrast between light and shade or a difference in color temperature forms a convex-shaped illumination configuration in a vehicle forward direction within an illuminated region ranging from a front end of the vehicle to a front end of the illuminated region.
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2. A method of adjusting visibility for vehicle by which forward visibility of a driver is adjusted, comprising the processes of:
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disposing a virtual parting line at a lower end of a windshield, the parting line having an apex and left and right ridgelines, the apex being located between a position opposed to a driver and a vehicle center position and being deviated from the opposed position, the left and right ridgelines uniformly inclining downward from the apex toward opposite sides in a vehicle-width direction; and
controlling an illumination property of headlights of the vehicle so that light quantity or color temperature in a belt-like region on a road surface is different from those in other illuminated regions, the belt-like region including a virtual line segment on the road surface that is composed of a set of points at which a line connecting a driver'"'"'s viewpoint with a point on the parting line intersects with the road surface in front of the vehicle. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A visibility adjusting apparatus for vehicle for adjusting forward visibility of a driver, comprising:
a control unit that controls an illumination property of headlights of a vehicle so that a contrast between light and shade or a difference in color temperature forms a convex-shaped illumination configuration in a vehicle forward direction within an illuminated region ranging from a front end of the vehicle to a front end of the illuminated region.
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14. A visibility adjusting apparatus for vehicle for adjusting forward visibility of a driver, comprising:
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a control unit that disposes a virtual parting line at a lower end of a windshield, and controls an illumination property of headlights of a vehicle so that light quantity or color temperature in a belt-like region on a road surface is different from those in other illuminated regions, wherein the parting line has an apex and left and right ridgelines, the apex being located between a position opposed to the driver and a vehicle center position and being deviated from the opposed position, the left and right ridgelines uniformly inclining downward from the apex toward opposite sides in a vehicle-width direction, and the belt-like region includes a virtual line segment on the road surface that is composed of a set of points at which a line connecting a driver'"'"'s viewpoint with a point on the parting line intersects with the road surface in front of the vehicle. - View Dependent Claims (15, 16, 17, 18)
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19. A visibility adjusting apparatus for vehicle for adjusting forward visibility of a driver, comprising:
a control means for controlling an illumination property of headlights of a vehicle so that a contrast between light and shade or a difference in color temperature forms a convex-shaped illumination configuration in a vehicle forward direction within an illuminated region ranging from a front end of the vehicle to a front end of the illuminated region.
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20. A visibility adjusting apparatus for vehicle for adjusting forward visibility of a driver, comprising:
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control means for disposing a virtual parting line at a lower end of a windshield, and controlling an illumination property of headlights of a vehicle so that light quantity or color temperature in a belt-like region on a road surface is different from those in other illuminated regions, wherein the parting line has an apex and left and right ridgelines, the apex being located between a position opposed to the driver and a vehicle center position and being deviated from the opposed position, the left and right ridgelines uniformly inclining downward from the apex toward opposite sides in a vehicle-width direction, and the belt-like region includes a virtual line segment on the road surface that is composed of a set of points at which a line connecting a driver'"'"'s viewpoint with a point on the parting line intersects with the road surface in front of the vehicle.
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Specification