Light control device for vehicle
First Claim
1. A light control device for a vehicle, comprising:
- an upper side illuminance sensor for detecting an illuminance at an upper side of the vehicle;
a control portion which determines whether the illuminance detected by the upper side illuminance sensor reaches a preset first reference illuminance, and performs a turning on or off control of a light of the vehicle based on a determined result; and
an environment change detecting means for detecting a predetermined external environment change of the vehicle, the environment change detecting means connected to the control portion to send an external environment change signal to the control portion when the environment change detecting means detects the predetermined external environment change, wherein;
when the control portion receives the external environment change signal from the environment change detecting means, the control portion uses a second reference illuminance higher than the first reference illuminance, instead of the first reference illuminance, and performs the turning on or off control by comparing the illuminance detected by the upper side illuminance sensor with the second reference illuminance.
1 Assignment
0 Petitions
Accused Products
Abstract
In a light control device for a vehicle, a control portion determines whether an illuminance detected by an illuminance sensor reaches a first reference illuminance, and performs a turning on or off control of lights of the vehicle based on the determined result. When the control portion receives an external environment change signal from an environment change detecting means, the control portion uses a second reference illuminance higher than the first reference illuminance, instead of the first reference illuminance, and performs the turning on or off control when the illuminance detected by the illuminance sensor reaches the second reference illuminance. Accordingly, vehicle lights can be suitably turned on or off in accordance with an external environment of the vehicle.
23 Citations
20 Claims
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1. A light control device for a vehicle, comprising:
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an upper side illuminance sensor for detecting an illuminance at an upper side of the vehicle;
a control portion which determines whether the illuminance detected by the upper side illuminance sensor reaches a preset first reference illuminance, and performs a turning on or off control of a light of the vehicle based on a determined result; and
an environment change detecting means for detecting a predetermined external environment change of the vehicle, the environment change detecting means connected to the control portion to send an external environment change signal to the control portion when the environment change detecting means detects the predetermined external environment change, wherein;
when the control portion receives the external environment change signal from the environment change detecting means, the control portion uses a second reference illuminance higher than the first reference illuminance, instead of the first reference illuminance, and performs the turning on or off control by comparing the illuminance detected by the upper side illuminance sensor with the second reference illuminance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A light control device for a vehicle, comprising:
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an illuminance sensor for detecting an illuminance at an upper side of the vehicle;
a control portion which determines whether the illuminance detected by the illuminance sensor is equal to or lower than a first reference illuminance, and performs a turning on or off control of a light of the vehicle based on a determined result;
a tunnel detecting means for detecting a tunnel; and
when the control portion receives a tunnel detection signal from the tunnel detecting means, the control portion uses a second reference illuminance higher than the first reference illuminance, instead of the first reference illuminance, and performs the turning on or off control by comparing the illuminance detected by the illuminance sensor with the second reference illuminance.
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16. A light control device for a vehicle, comprising:
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an illuminance sensor for detecting an illuminance at an upper side of the vehicle;
a control portion which determines whether the illuminance detected by the illuminance sensor is equal to or lower than a first reference illuminance, and performs a turning on or off control of a light of the vehicle based on a determined result;
a precipitation detecting means for detecting a precipitation; and
when the control portion receives a precipitation detection signal from the precipitation detecting means, the control portion uses a second reference illuminance higher than the first reference illuminance, instead of the first reference illuminance, and performs the turning on or off control by comparing the illuminance detected by the illuminance sensor with the second reference illuminance.
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17. A light control device for a vehicle, comprising:
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an upper side illuminance sensor for detecting an illuminance at an upper side of the vehicle;
a control portion which determines whether the illuminance detected by the upper side illuminance sensor is equal to or lower than a predetermined reference illuminance, and performs a turning on or off control of a light of the vehicle based on a determined result at a time delayed by a predetermined time from the determination;
a tunnel detecting means for detecting a tunnel; and
when the control portion receives a tunnel detection signal from the tunnel detecting means, the control portion performs the turning on or off control of the light at a time delayed by a delay time shorter than the predetermined time, from the determination. - View Dependent Claims (18, 19, 20)
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Specification