Vehicle headlight device
First Claim
Patent Images
1. A headlight device for a motorcycle, which comprises:
- a pair of headlight units disposed laterally on right and left sides with respect to the motorcycle, in which at least one of those headlight units is a movable headlight unit including a light distribution adjusting mechanism for changing a range of illumination during a cornering of the motorcycle; and
a bank angle detector for detecting a bank angle of the motorcycle, including a gyroscope to measure a rotational angular velocity of the motorcycle, a speedometer for measuring a traveling velocity of the motorcycle, and a bank angle calculator for calculating a bank angle of the motorcycle using the rotational angular velocity and the traveling velocity of the motorcycle,wherein the light distribution adjusting mechanism adjusts the movable headlight unit based on the detected bank angle, and the light distribution adjusting mechanism includes a light distribution changing mechanism configured for shifting to change the range of illumination and a driving unit for shifting the light distribution changing mechanism,wherein the light distribution adjusting mechanism also includes a position detector for detecting a position of the light distribution changing mechanism, and wherein the driving unit and the position detector are positioned on one side of a center of the movable headlight unit and adjacent a mid-center plane in the width direction of the motorcycle.
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Abstract
A headlight device (27) for motor vehicle includes a plurality of headlight units (29 and 30). At least one of those headlight units is a movable headlight unit (30) having a light distribution adjusting mechanism (83) for changing a range of illumination during a cornering of the motor vehicle.
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Citations
16 Claims
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1. A headlight device for a motorcycle, which comprises:
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a pair of headlight units disposed laterally on right and left sides with respect to the motorcycle, in which at least one of those headlight units is a movable headlight unit including a light distribution adjusting mechanism for changing a range of illumination during a cornering of the motorcycle; and a bank angle detector for detecting a bank angle of the motorcycle, including a gyroscope to measure a rotational angular velocity of the motorcycle, a speedometer for measuring a traveling velocity of the motorcycle, and a bank angle calculator for calculating a bank angle of the motorcycle using the rotational angular velocity and the traveling velocity of the motorcycle, wherein the light distribution adjusting mechanism adjusts the movable headlight unit based on the detected bank angle, and the light distribution adjusting mechanism includes a light distribution changing mechanism configured for shifting to change the range of illumination and a driving unit for shifting the light distribution changing mechanism, wherein the light distribution adjusting mechanism also includes a position detector for detecting a position of the light distribution changing mechanism, and wherein the driving unit and the position detector are positioned on one side of a center of the movable headlight unit and adjacent a mid-center plane in the width direction of the motorcycle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A headlight device for a motorcycle including a pair of headlight units disposed laterally on right and left sides with respect to the motorcycle comprising:
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a fixed headlight unit; a movable headlight unit including a light distribution adjusting mechanism for changing a range of illumination during a cornering of the motorcycle, a light emitting element, and a rotatable reflector for collecting rays of light emitted from the light emitting element; a potentiometer for detecting a position of the rotatable reflector of the movable headlight unit; a drive controller to halt a rotation of the rotatable reflector based on the potentiometer; and a bank angle detector for detecting a bank angle of the motorcycle including a gyroscope to measure a rotational angular velocity of the motorcycle, wherein the light distribution adjusting mechanism adjusts the movable headlight unit based on the detected bank angle, and wherein the potentiometer is positioned on one side of a center of the movable headlight unit and adjacent a mid-center plane in the width direction of the motorcycle. - View Dependent Claims (12, 13)
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14. A headlight device for a motorcycle including a pair of headlight units disposed laterally on right and left sides with respect to the motorcycle comprising:
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a fixed headlight unit; a movable headlight unit including a driving unit, a light distribution adjusting mechanism for changing a range of illumination during a cornering of the motorcycle, a light emitting element, and a rotatable reflector for collecting rays of light emitted from the light emitting element; a potentiometer for detecting a position of the rotatable reflector of the movable headlight unit; a drive controller to halt a rotation of the rotatable reflector based on the potentiometer; and a bank angle detector for detecting a bank angle of the motorcycle including a gyroscope to measure a rotational angular velocity of the motorcycle, wherein the light distribution adjusting mechanism adjusts the movable headlight unit based on the detected bank angle, and wherein the driving unit is positioned on one side of a center of the movable headlight unit and adjacent a mid-center plane in the width direction of the motorcycle. - View Dependent Claims (15)
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16. A headlight device for a motorcycle which comprises:
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a pair of headlight units disposed laterally on right and left sides with respect to the motorcycle, in which at least one of those headlight units is a movable headlight unit including a light distribution adjusting mechanism for changing a range of illumination during a cornering of the motorcycle; and a bank angle detector for detecting a bank angle of the motorcycle, wherein the light distribution adjusting mechanism adjusts the movable headlight unit based on the detected bank angle, and the light distribution adjusting mechanism includes a light distribution changing mechanism configured for shifting to change the range of illumination and a driving unit for shifting the light distribution changing mechanism, wherein the light distribution adjusting mechanism also includes a position detector for detecting a position of the light distribution changing mechanism, and wherein at least one of the driving unit and the position detector is positioned on one side of a center of the movable headlight unit and adjacent a mid-center plane in the width direction of the motorcycle and wherein another of the pair of headlight units is fixed relative to the movable headlight unit and the bank angle detector calculates a bank angle from a rotational angular velocity and traveling velocity of the motorcycle.
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Specification