Headlight apparatus and method of controlling the same
First Claim
1. A headlight apparatus provided in a transportation, the headlight apparatus comprising:
- a light source unit including at least one light source and emitting a light in a forward direction of the transportation;
a light source driving unit supplying a driving current to the at least one light source included in the light source unit; and
a control unit receiving information about a driving environment of the transportation and determining a driving condition of the light source unit by using the received information about the driving environment,wherein the driving condition includes a driving current value corresponding to a brightness of the light source of the light source unit,wherein the control unit is configured to;
control the light source unit by using a first driving current value when the information is a first state;
determine a second driving current value corresponding to a second state when the information is changed from the first state to the second state, andwherein, when a variation of a driving speed drop between a first driving speed of the first state and a second driving speed of the second state exceeds a predetermined driving speed drop value, the first driving current value of the light source unit is maintained for a predetermined time to maintain a first brightness of the light source.
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Accused Products
Abstract
Disclosed are a headlight apparatus and a method of controlling the same. The headlight apparatus provided in a transportation includes a light source unit including at least one light source and emitting a light in a forward direction of the transportation, a light source driving unit supplying a driving current to the at least one light source included in the light source unit, and a control unit receiving information about a driving environment of the transportation and determining a driving condition of the light source unit by using the received information about the driving environment. The driving condition of the light source unit includes a driving current value corresponding to a brightness of the at least one light source included in the light source unit.
29 Citations
15 Claims
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1. A headlight apparatus provided in a transportation, the headlight apparatus comprising:
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a light source unit including at least one light source and emitting a light in a forward direction of the transportation; a light source driving unit supplying a driving current to the at least one light source included in the light source unit; and a control unit receiving information about a driving environment of the transportation and determining a driving condition of the light source unit by using the received information about the driving environment, wherein the driving condition includes a driving current value corresponding to a brightness of the light source of the light source unit, wherein the control unit is configured to; control the light source unit by using a first driving current value when the information is a first state; determine a second driving current value corresponding to a second state when the information is changed from the first state to the second state, and wherein, when a variation of a driving speed drop between a first driving speed of the first state and a second driving speed of the second state exceeds a predetermined driving speed drop value, the first driving current value of the light source unit is maintained for a predetermined time to maintain a first brightness of the light source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of controlling a headlight apparatus including at least one light source, the method comprising:
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receiving information about a driving environment of a transportation; determining a first driving current value corresponding to a brightness of the light source when the information is a first state; operating the light source by using the first driving current value; and determining a second driving current value of the light source corresponding to a second state when the information is changed from the first state to the second state, wherein, when a variation of a driving speed drop between a first driving speed of the first state and a second driving speed of the second state exceeds a predetermined driving speed drop value, the first driving current value of the light source unit is maintained for a predetermined time to maintain a first brightness of the light source. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification