Lighting device for vehicle
First Claim
1. A lighting device for a vehicle comprising:
- vehicle current-position detecting means for obtaining position information;
road information acquiring means for obtaining road information; and
irradiation control means for deciding a running area based on the position information obtained by vehicle current-position detecting means and the road information obtained by road information acquiring means and carrying out irradiation control of a lighting tool for a vehicle based on the decided running area;
wherein the irradiation control means decide a type of a running area, in which a vehicle is running, from the position information and the road information based on road information in a current position of the vehicle and road information about a road over which the vehicle has already run, and wherein, in a case in which results of previous decisions related to a running area are stored and are compared with a result of a present decision to change the running area, the irradiation control means gradually vary an irradiation state from an irradiation state before the change to an irradiation state after the change.
1 Assignment
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Accused Products
Abstract
It is an object to reliably decide the running area of a vehicle and to carry out suitable irradiation control for the area. This invention provides a lighting device 1 for a vehicle including irradiation control means 5 for deciding a running area based on position information obtained by vehicle current-position detecting means 2 and road information obtained by road information acquiring means 3 and for carrying out irradiation control of a lighting tool for a vehicle according to a result of the decision. For road information, a current running area (a high-speed running area, an urban area) is decided based on information in the current position of a vehicle and information about a road over which the vehicle has already run or the same information and information about the forward place of the vehicle.
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Citations
6 Claims
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1. A lighting device for a vehicle comprising:
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vehicle current-position detecting means for obtaining position information;
road information acquiring means for obtaining road information; and
irradiation control means for deciding a running area based on the position information obtained by vehicle current-position detecting means and the road information obtained by road information acquiring means and carrying out irradiation control of a lighting tool for a vehicle based on the decided running area;
wherein the irradiation control means decide a type of a running area, in which a vehicle is running, from the position information and the road information based on road information in a current position of the vehicle and road information about a road over which the vehicle has already run, and wherein, in a case in which results of previous decisions related to a running area are stored and are compared with a result of a present decision to change the running area, the irradiation control means gradually vary an irradiation state from an irradiation state before the change to an irradiation state after the change. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification