KR101664710B1 - Method for controlling beam pattern of head lamp - Google Patents

Method for controlling beam pattern of head lamp Download PDF

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Publication number
KR101664710B1
KR101664710B1 KR1020150086958A KR20150086958A KR101664710B1 KR 101664710 B1 KR101664710 B1 KR 101664710B1 KR 1020150086958 A KR1020150086958 A KR 1020150086958A KR 20150086958 A KR20150086958 A KR 20150086958A KR 101664710 B1 KR101664710 B1 KR 101664710B1
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KR
South Korea
Prior art keywords
pattern
mode
headlamp
head lamp
vehicle
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KR1020150086958A
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Korean (ko)
Inventor
신직수
라진호
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현대자동차주식회사
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Priority to KR1020150086958A priority Critical patent/KR101664710B1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00Arrangements or adaptations of optical signalling or lighting devices
    • B60Q1/02Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/06Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely controlled from inside vehicle
    • B60Q1/08Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely controlled from inside vehicle automatically
    • F21S48/30
    • H05B37/0227
    • F21W2101/10

Abstract

The present invention relates to a method for controlling a beam pattern of a head lamp for a vehicle, which controls beam patterns of a left head lamp and a right head lamp to be realized to be different beam patterns in accordance with a distance change with the preceding vehicle when a vehicle capable of realizing an ADB mode is driven, thereby removing a phenomenon in which brightness of a road rapidly becomes dark.

Description

TECHNICAL FIELD [0001] The present invention relates to a beam pattern control method for a vehicle headlamp,

The present invention relates to a method of controlling a beam pattern of a headlamp for a vehicle, and more particularly, to a method of controlling a beam pattern of a headlamp for a vehicle, in which a beam pattern of a left headlamp and a right headlamp are different And a beam pattern control method for a vehicle headlamp that is realized with a beam pattern.

Generally, a beam pattern implemented in a head lamp of a vehicle includes a low beam mode, a high beam mode, and an adaptive driving beam (ADB) mode.

Among them, ADB mode is a mode that automatically adjusts the direction and angle of light shining according to driving conditions. It is a technology to automatically detect high-beam mode and low beam mode by detecting the preceding vehicle through camera sensor. And it is a technique to prevent a comfortable driving and glare of the opponent vehicle driver by forming a cancer stage when a preceding vehicle appears.

1, the shield 10 receives the power of the motor 20 through the gear mechanism 30 and transmits the power of the motor 20 to the lamp housing 40 through the shield 30, So that the shaft can be rotated.

2, the shield 10 includes a plane 11 for implementing a high beam mode, a first projection 12 for implementing a low beam mode, and a second projection 13 for implementing an ADB mode A low beam is realized when the first projection 12 is positioned in front of the light source 50 and a high beam is realized when the plane 11 is positioned in front of the light source 50, ADB is implemented when the projection 13 is located in front of the light source 50. [

2, X is a beam pattern of the left headlamp, Y is a beam pattern of the right headlamp, and Z is a beam pattern of the entire lamp.

3, the shield of the left head lamp and the shield of the right head lamp operate at the same angle, so that the beam pattern X of the left head lamp and the beam pattern And the beam pattern Y of the right headlamp are equal to each other. As a result, the brightness of the road surface is drastically reduced at the time of implementation of the low beam, which is a risk factor for safe operation. Particularly, There are occasions where the driver feels a great sense of heterogeneity and raises a problem with the merchantability.

That is, if there is no preceding vehicle 60 in a vehicle equipped with a headlamp capable of implementing the ADB mode, the left and right headlamps all implement the high beam mode (section A). If the sensor recognizes the preceding vehicle 60 The left and right headlamp shields 10 are all rotated in the same direction to implement the low beam mode, the brightness of the road surface is gradually reduced (section B), and when the preceding vehicle is getting closer, The shield 10 is turned to the low beam mode and the brightness of the road surface is suddenly darkened (section C). If the driver of the preceding vehicle gets closer to the preceding vehicle so as to cause glare, (D section), and the beam pattern (X, Y) of the left and right headlamps is divided after completion of the ADB mode, the brightness of the road surface is gradually increased furnace The brightness is maintained at the same brightness. (E section)

Therefore, in the conventional headlamp, the beam pattern X of the left headlamp and the beam pattern Y of the right headlamp are mutually changed in accordance with the distance from the preceding vehicle 60, There is a disadvantage that the brightness of the image becomes suddenly dark.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

Korean Patent Publication No. 10-2010-0123150

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in order to solve the above-mentioned disadvantages, and it is an object of the present invention to provide a vehicle headlamp capable of realizing the ADB mode by controlling the beam patterns of the left head lamp and the right head lamp in different beam patterns In addition, when the front vehicle approaches to the beam pattern of the low beam mode, the left and right head lamps are sequentially changed into the beam pattern of the low beam mode, thereby minimizing the change of the brightness of the road surface due to the beam pattern change And it is an object of the present invention to provide a method of controlling a beam pattern of a vehicle headlamp capable of minimizing a sense of heterogeneity in brightness change.

According to another aspect of the present invention, there is provided a method of controlling a beam pattern of a vehicle headlamp capable of realizing ADB mode, comprising the steps of: recognizing a preceding vehicle A first step in which the left head lamp and the right head lamp implement the same beam pattern until a situation occurs; In which a beam pattern of the left head lamp and a beam pattern of the right head lamp are implemented in different patterns until a situation immediately before the beam pattern of the left head lamp and the beam pattern of the right head lamp are separated from each other, Step 2; And a third step in which the left head lamp and the right head lamp again implement the same beam pattern and the beam pattern of the left head lamp and the beam pattern of the right head lamp are separated from each other after the second step .

In the first step, the left head lamp and the right head lamp both implement a beam pattern of a high beam mode.

Wherein the second step includes: a remote access section that is a section from a state in which the preceding vehicle is recognized according to a change in distance from the preceding vehicle to a time immediately before the driver of the preceding vehicle generates the glare; A short access interval, which is a section from the remote access section to the just before the implementation of the ADB mode; And a second access section that is a section for completing the ADB mode implementation after the short access section; And the beam pattern of the left head lamp and the beam pattern of the right head lamp are implemented in different patterns in the remote access section, the near access section and the second approach section.

The left headlamp is converted into the beam pattern of the low beam mode in the beam pattern of the high beam mode and the right headlamp maintains the beam pattern of the high beam mode in the long access section.

The left headlamp is converted from the beam pattern of the low beam mode into the beam pattern of the ADB mode and the right headlamp is converted from the beam pattern of the high beam mode into the beam pattern of the low beam mode.

The left headlamp completes the beam pattern of the ADB mode in the second approach interval and the right headlamp is converted into the beam pattern of the ADB mode in the beam pattern of the low beam mode.

In the third step, the left headlamp and the right headlamp are divided into a beam pattern of the left headlamp and a beam pattern of the left headlamp while implementing the beam pattern of the completed ADB mode, .

According to the beam pattern control method for a vehicle headlamp according to the present invention, when a vehicle capable of implementing the ADB mode travels, the beam patterns of the left headlamp and the right headlamp are controlled in different beam patterns in accordance with the distance from the preceding vehicle The left head lamp and the right head lamp are sequentially changed into the beam pattern of the low beam mode when the beam pattern of the low beam mode is changed as the preceding vehicle approaches, It is possible to eliminate the phenomenon in which the brightness of the road surface suddenly dims in the near approach section and the second approach section and to minimize the change in the brightness of the road surface due to the change of the beam pattern and further to minimize the heterogeneity There is an advantage.

Further, the present invention can remarkably improve the stability of the vehicle while improving the merchantability.

1 is a view for explaining a shield of a headlamp,
2 is a view for explaining a beam mode and a beam pattern implemented according to an angle change of a shield,
3 is a view for explaining a beam pattern change and a road surface brightness change realized in a conventional headlamp,
4 is a view for explaining a method of controlling a beam pattern of a vehicle headlamp capable of realizing the ADB mode according to the present invention.

Hereinafter, a method of controlling a beam pattern of a vehicle headlamp according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

1 and 2, the shield 10 receives the power of the motor 20 and receives the power from the lamp housing (not shown) 40 so as to rotate the shaft.

The shield 10 includes a plane 11 for implementing a high beam mode, a first projection 12 for implementing a low beam mode, and a second projection 13 for implementing an ADB mode, A beam pattern of a low beam mode is realized when the projection 12 is positioned in front of the light source 50 and a beam pattern of a high beam mode is realized when the plane 11 is positioned in front of the light source 50, When the two projections 13 are located in front of the light source 50, a beam pattern of the ADB mode is realized.

4, a method of controlling a beam pattern of a vehicle headlamp capable of realizing an ADB mode according to the present invention is a method of controlling a beam pattern of a vehicle headlamp in a state where a preceding vehicle 60 is recognized in a running state, A first step in which the right headlamp implements the same beam pattern (X, Y); The beam pattern X of the left headlamp and the beam pattern Y of the right headlamp are separated from each other until the situation immediately before the beam pattern X of the left headlamp and the beam pattern Y of the right headlamp are split from each other, A second step in which the beam pattern Y of the ramp is implemented in a different pattern; And after the second step, the left head lamp and the right head lamp again implement the same beam pattern (X, Y), and the beam pattern (X) of the left head lamp and the beam pattern (Y) And a third step of dividing.

4, Z is the beam pattern of the entire lamp.

Meanwhile, in the first step, the left head lamp and the right head lamp both implement a beam pattern of a high beam mode.

In the second step, a remote access section (section H), which is a section from a state in which the preceding vehicle is recognized according to a change in distance from the preceding vehicle to a time immediately before the driver of the preceding vehicle generates glare; A short-range access section (I section), which is a section from the remote access section (section H) to just before the implementation of the ADB mode is started; And a second access section J which is a section for completing the ADB mode implementation after the short access section (I section); The beam pattern X of the left headlamp and the beam pattern Y of the right headlamp are implemented in different patterns in the remote access section (section H), the short access section (section I) and the second approach section J .

Here, the left headlamp is converted into the beam pattern X of the low beam mode in the beam pattern of the high beam mode and the beam pattern Y of the high beam mode is maintained by the right headlamp in the remote access section (section H).

The left headlamp is converted from the beam pattern of the low beam mode into the beam pattern X of the ADB mode in the short access period (I section), and the beam pattern of the low beam mode in the beam pattern of the high beam mode Y).

In the second approach period (section J), the left headlamp completes the beam pattern X of the ADB mode, and the right headlamp is converted to the beam pattern Y of the ADB mode in the beam pattern of the low beam mode.

In the third step, the left headlamp and the right headlamp both implement the beam pattern (X, Y) of the completed ADB mode and the beam pattern of the left headlamp (X And the beam pattern Y of the left headlamp are separated from each other.

Hereinafter, the operation of the embodiment of the present invention will be described.

If there is no preceding vehicle 60 in a state where a vehicle equipped with a headlamp capable of implementing the ADB mode is running, both the left and right headlamps realize the beam patterns X and Y of the high beam mode (section F) , And the beam pattern (X, Y) in the high beam mode continues until the sensor recognizes the preceding vehicle 60. (G section)

When the preceding vehicle 60 is recognized, the left head lamp is converted into the beam pattern X of the low beam mode in the beam pattern of the high beam mode and the beam pattern Y of the high beam mode is maintained And the brightness of the road surface is suddenly darkened by the right headlamp which holds the beam pattern Y in the high beam mode. (H section and long distance section)

When the preceding vehicle 60 gets closer, the left headlamp is converted from the beam pattern of the low beam mode to the beam pattern X of the ADB mode and the right headlamp is converted into the beam pattern Y of the low beam mode in the beam pattern of the high beam mode, (I-section, near-distance approach section) in which the brightness of the road surface is suddenly darkened by the left headlamp which is converted into the beam pattern X of the ADB mode.

When the preceding vehicle 60 gets closer, the left headlamp completes the beam pattern X of the ADB mode and the right headlamp completes the beam pattern Y of the ADB mode in the beam pattern of the low beam mode, It is possible to solve the conventional disadvantage that the brightness of the road surface is suddenly darkened by the left headlamp completing the beam pattern X of the ADB mode and the right headlamp converted into the beam pattern Y of the ADB mode. Access section)

In the section (section K) after the second approach interval, both the left head lamp and the right head lamp implement the beam pattern (X, Y) of the completed ADB mode while the beam pattern X of the left head lamp and the left head lamp The beam patterns Y of the preceding vehicle 60 are separated from each other, thereby preventing the driver of the preceding vehicle 60 from glare.

As described above, according to the embodiment of the present invention, it is possible to eliminate the phenomenon in which the brightness of the road surface is rapidly darkened in the remote access section, the near access section and the second approach section, thereby minimizing the change in brightness of the road surface It is possible to minimize the sense of heterogeneity in the brightness change, and it is possible to greatly improve the stability of the driving and to improve the merchantability.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

10 - Shield 60 - Preceding vehicle
X - beam pattern of the left headlamp Y - beam pattern of the right headlamp

Claims (7)

  1. A method of controlling a beam pattern of a vehicle headlamp capable of realizing an ADB mode,
    A first step in which the left head lamp and the right head lamp realize the same beam pattern from a situation where there is no preceding vehicle in the running to a situation where the preceding vehicle is recognized;
    In which a beam pattern of the left head lamp and a beam pattern of the right head lamp are implemented in different patterns until a situation immediately before the beam pattern of the left head lamp and the beam pattern of the right head lamp are separated from each other, Step 2; And
    And a third step in which the left head lamp and the right head lamp again implement the same beam pattern and the beam pattern of the left head lamp and the beam pattern of the right head lamp are divided from each other after the second step;
    Wherein the second step includes: a remote access section that is a section from a state in which the preceding vehicle is recognized according to a change in distance from the preceding vehicle to a time immediately before the driver of the preceding vehicle generates the glare;
    A short access interval, which is a section from the remote access section to the just before the implementation of the ADB mode; And
    Subdivided into a second access period, which is an interval for completing the ADB mode implementation after the short-term access period;
    The beam pattern of the left head lamp and the beam pattern of the right head lamp are implemented in different patterns in the remote access section, the near access section and the second approach section;
    Wherein the left headlamp completes the beam pattern of the ADB mode and the right headlamp converts the beam pattern of the low beam mode into the beam pattern of the ADB mode in the second approach period.
  2. The method according to claim 1,
    Wherein the left headlamp and the right headlamp both implement the beam pattern of the high beam mode in the first step.
  3. delete
  4. The method according to claim 1,
    Wherein the left headlamp is converted into a beam pattern of a low beam mode in a beam pattern of a high beam mode and the right headlamp maintains a beam pattern of a high beam mode in the long distance approach section.
  5. The method according to claim 1,
    Wherein the left headlamp is converted from the beam pattern of the low beam mode to the beam pattern of the ADB mode and the right headlamp is converted from the beam pattern of the high beam mode to the beam pattern of the low beam mode. / RTI >
  6. delete
  7. The method according to claim 1,
    In the third step, the left headlamp and the right headlamp are divided into a beam pattern of the left headlamp and a beam pattern of the left headlamp while implementing the beam pattern of the completed ADB mode, Of the beam pattern of the vehicle headlamp.
KR1020150086958A 2015-06-18 2015-06-18 Method for controlling beam pattern of head lamp KR101664710B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10234101B2 (en) 2017-04-27 2019-03-19 Hyundai Mobis Co., Ltd. Optical device
KR20190083122A (en) 2018-01-03 2019-07-11 한국광기술원 Head lamp using display panel
KR20190118315A (en) 2018-04-10 2019-10-18 한국광기술원 Head lamp

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100123150A (en) 2009-05-14 2010-11-24 주식회사 케피코 Apparatus and method for detecting fault of automatic transmission based on shift by wire
KR20150052638A (en) * 2013-11-06 2015-05-14 현대모비스 주식회사 ADB head-lamp system and Beam control method using the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100123150A (en) 2009-05-14 2010-11-24 주식회사 케피코 Apparatus and method for detecting fault of automatic transmission based on shift by wire
KR20150052638A (en) * 2013-11-06 2015-05-14 현대모비스 주식회사 ADB head-lamp system and Beam control method using the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10234101B2 (en) 2017-04-27 2019-03-19 Hyundai Mobis Co., Ltd. Optical device
KR20190083122A (en) 2018-01-03 2019-07-11 한국광기술원 Head lamp using display panel
KR20190118315A (en) 2018-04-10 2019-10-18 한국광기술원 Head lamp

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