KR200460748Y1 - Lamp shield driving device and adaptive headlamp device using the same - Google Patents
Lamp shield driving device and adaptive headlamp device using the same Download PDFInfo
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- KR200460748Y1 KR200460748Y1 KR20090016628U KR20090016628U KR200460748Y1 KR 200460748 Y1 KR200460748 Y1 KR 200460748Y1 KR 20090016628 U KR20090016628 U KR 20090016628U KR 20090016628 U KR20090016628 U KR 20090016628U KR 200460748 Y1 KR200460748 Y1 KR 200460748Y1
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- shield
- gear
- rotates
- driving
- sub
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- Engineering & Computer Science (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
A lamp shield driving device and an adaptive head lamp device using the same are provided. One aspect of the lamp shield drive apparatus includes a first shield having one or more shield protrusions; A second shield spaced apart from the first shield; And a shield driving part including a step motor as driving means for providing driving force to the first shield and the second shield, wherein the shield driving part is in a reference mode when the step motor rotates in the first direction. The first shield is rotated to form one or more first beam patterns, and when the step motor rotates in the second direction, the first shield and the second shield are rotated together to form a second second beam different from the first beam pattern. Form a beam pattern.
Headlamp, adaptive headlamp, AFLS, beam pattern
Description
The present invention relates to a lamp shield driving apparatus and an adaptive head lamp apparatus using the same, and more particularly, to a lamp shield driving apparatus for generating a beam pattern suitable for a driving environment of a vehicle and an adaptive head lamp apparatus using the same. .
In general, the vehicle is provided with an illumination function for the purpose of informing the driving state of his vehicle to other vehicles or other road users so that the object of the driving direction can be seen well at night driving. A head lamp, also known as a headlight, is a lamp that functions to shine ahead of a vehicle, and requires brightness that can identify obstacles on the road at a distance of 100 meters ahead at night. The standard of the headlamp is set differently from country to country, and in particular, the direction of irradiation of the headlamp beam is set differently depending on whether the vehicle is driven right (left driving) or left (right driving).
Conventional vehicle headlamps provide drivers with a fixed lighting pattern, regardless of varying road conditions. Therefore, high speed driving that requires longer distances than existing vehicles, and the surrounding light is brighter than other roads, and the glare is caused by the reflection of urban driving, rain or snow or wet roads, which are less dependent on the brightness of the headlamps. This increases, and when driving in bad weather when the field of view is reduced, a proper field of view for the driver to drive safely is not secured.
Adaptive front lighting system (AFLS) was introduced in an attempt to improve the driver's and opponent's frontal awareness. Adaptive Headlamp System (AFLS) is a system that changes the width and length of headlights according to the driving conditions, road conditions, environmental conditions, etc. of a vehicle. For example, separate headlights may be possible in adaptive headlamp systems when cornering a turnway at low speeds. In addition, the brightness of the headlamp may be adjusted so that the driver of the vehicle approaching the opposite lane is not blinded.
Therefore, there is a need for a system that can provide a headlamp that generates a beam pattern that is suitable for changing road conditions and weather conditions, thereby improving the forward recognition of the driver and the counterpart driver.
An object of the present invention is to provide a lamp shield driving device that provides a variety of beam patterns by operating the first shield and the second shield and an adaptive headlamp device using the same.
Another object of the present invention is to provide a lamp shield drive device and an adaptive headlamp device using the same to drive a first shield or a second shield according to the rotation direction of the drive unit to provide a beam pattern suitable for the surrounding environment. The purpose.
The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.
In order to achieve the above object, one aspect of the lamp shield drive device of the present invention is a first shield having one or more shield projections; A second shield spaced apart from the first shield; And a shield driving part including a step motor as driving means for providing driving force to the first shield and the second shield, wherein the shield driving part is in a reference mode when the step motor rotates in the first direction. The first shield is rotated to form one or more first beam patterns, and when the step motor rotates in the second direction, the first shield and the second shield are rotated together to form a second second beam different from the first beam pattern. Form a beam pattern.
One aspect of the adaptive headlamp device of the present invention for achieving the above object is a lamp; A lamp shield driving device which blocks a part of the light provided by the lamp in a predetermined shield pattern; A lens for concentrating the blocked light forward; And the lamp and the lamp shield driving device, wherein the lamp shield driving device comprises: a first shield having one or more shield protrusions; A second shield spaced apart from and parallel to the first shield; And a shield driving part including a step motor as driving means for providing driving force to the first shield and the second shield, wherein the shield driving part is in a reference mode when the step motor rotates in the first direction. One or more first beam patterns are formed as the first shield rotates, and when the step motor rotates in the second direction, the second shield is different from the first beam pattern as the first shield and the second shield rotate together. Form a beam pattern.
According to the present invention, it is possible to provide a variety of beam patterns by driving the first shield and the second shield individually or in conjunction with one driving unit.
In addition, the first shield or the second shield may be driven according to the rotation direction of the driving unit to provide a beam pattern suitable for the surrounding environment.
Effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.
Specific details of other embodiments are included in the detailed description and the drawings. Advantages and features of the present invention, and methods for achieving them will be apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. It should be understood, however, that the present invention is not limited to the embodiments disclosed herein but may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, To the person having the invention, and this invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.
Hereinafter, with reference to the accompanying drawings for a preferred embodiment of the present invention will be described in more detail.
1 shows an exploded perspective view of an adaptive headlamp device according to an embodiment of the present invention, Figure 2 shows a perspective view of the adaptive headlamp device is assembled according to an embodiment of the present invention.
1 and 2, an adaptive headlamp device according to an embodiment of the present invention includes a
The
The
The
The
The
The left and
The
On the other hand, the adaptive headlamp device according to an embodiment of the present invention may further include a control unit (not shown) for controlling the
3A and 3B show an example of the first shield and the second shield arrangement in the lamp shield driving apparatus according to an embodiment of the present invention.
3A and 3B, the
The
As such, when the
The
Referring to FIG. 3B, the
For example, when the road surface, such as rain, gets wet, and the glare may be severely generated by the headlamp, the
Hereinafter, various beam patterns described above will be briefly described. For example, as shown in Table 1, the beam pattern of the headlamp is divided according to the high beam and the low beam, which can be divided into different classes according to conditions such as driving speed, road characteristics, road condition, lane direction, etc. have.
[Table 1]
(Basic Beam)
(Town Beam)
(Motorway Light)
(Wetroad Light)
(High)
At this time, the dotted line in Table 1 can be understood as a beam pattern of C class, it is shown for comparison with each beam pattern. The H class is a beam pattern called a high-beam that illuminates a long distance, and is a beam pattern suitable for a high-speed environment without other vehicles in front.
The RHD C class is a beam pattern used when a road driving environment is changed from right to left traffic based on a vehicle.
Class C is a beam pattern that is suitable when a vehicle is driving on a country road or when there is no special situation and it is not necessary to apply a different mode beam pattern. Compared with a general low-beam, the pattern improves the amount of light while securing a view of the opposite lane.
Class V is a beam pattern suitable when the vehicle is traveling in an environment where the brightness of the surrounding light is secured such as a city area. For example, when the city is running, the speed of the vehicle is 60 km / h or less and the luminance of the road surface is 1 cd / m 2 or more. In particular, the left / right field of view is wider than the C class, and the field of view of a shorter distance (about 50 to 60 m) than the C class is secured. However, in order to widen the left / right field of view, it is common to tilt the irradiation direction of the left / right headlamps somewhat outward.
Class E is a beam pattern that is suitable when a vehicle is traveling on a highway or on a road where a substantial straight section is maintained. Thus, the E class has a somewhat longer forward far field than the C class.
Class W is a beam pattern that is suitable when the vehicle is driving in rainy weather or on wet roads. Therefore, the forward far field is somewhat similar to the E class, but in order to reduce the reflective glare up to about 10 to 20 m in front of the front, it is rather characterized by reducing the amount of light.
4 shows a perspective view of a shield driving device in the adaptive headlamp device according to the embodiment of the present invention. FIG. 5 is an exploded perspective view of the shield driving unit in the shield driving device of FIG. 4.
First, referring to FIG. 4, a shield driving device in an adaptive headlamp device according to an embodiment of the present invention may include a
The
Referring to FIG. 5, the
The
The
The
The
The
As shown in FIG. 10, the
The
Meanwhile, the
The
The
The printed circuit board (PCB) 470 serves to generate and transmit a predetermined control signal. The printed
Figure 6a shows an exploded perspective view of the first gear portion and the second gear portion in the adaptive headlamp device according to an embodiment of the present invention, Figure 6b is an adaptive headlamp device in accordance with an embodiment of the present invention Shows a sectional view of the shield drive unit.
First, referring to FIG. 6A, the
The
The
The
The
The
Referring to FIG. 6B, in the reference mode, the gears of the
When the
7A to 7C are views schematically showing the operation of the shield driver in the adaptive headlamp device according to the embodiment of the present invention. 7A to 7C, an operation of the
First, referring to FIG. 7A, the
Therefore, the clockwise rotation of the
Referring to FIG. 7B, the
Referring to FIG. 7C, as shown in FIG. 7B, the
That is, when the clockwise rotation of the
As described above, in the embodiment of the present invention, the
FIG. 8 schematically shows a configuration for detecting a fail mode in a shield driver in an adaptive headlamp device according to an embodiment of the present invention.
Referring to FIG. 8, the
On the other hand, for example, the
For example, the power supply may not be applied to the
However, when the
In an embodiment of the present invention, the
As described above, in an embodiment of the present invention, the
Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may be substituted, modified, and modified in various ways without departing from the spirit or essential features of the present invention. It is to be understood that modifications may be made and other embodiments may be embodied. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not limiting.
1 is an exploded perspective view of an adaptive headlamp device according to an embodiment of the present invention.
2 is a perspective view of an adaptive headlamp device assembled according to an embodiment of the present invention.
3A and 3B are diagrams illustrating an example of a first shield and a second shield arrangement in the lamp shield driving apparatus according to an embodiment of the present invention.
4 is a perspective view of a shield driving device in an adaptive headlamp device according to an embodiment of the present invention.
FIG. 5 is an exploded perspective view of the shield drive unit in the shield drive device of FIG. 4.
6A is an exploded perspective view of the first gear unit and the second gear unit in the adaptive headlamp device according to the embodiment of the present invention.
6B is a cross-sectional view of the shield driving unit in the adaptive headlamp device according to the embodiment of the present invention.
7A to 7C are views schematically showing the operation of the shield driver in the adaptive headlamp device according to the embodiment of the present invention.
FIG. 8 is a diagram schematically illustrating a configuration of detecting a fail mode in a shield driver in an adaptive headlamp device according to an embodiment of the present invention.
* Description of the main parts of the drawings *
70: lamp 80: lens
90: reflector 200: shield drive unit
300: left and right driving unit 400: leveling driving unit
210: first shield 220: second shield
260: rotation axis projection 350: housing
232, 234, 236: shield protrusion
420: first gear 425: second gear
430: first sub gear 435: second sub gear
432: first inner gear 437: second inner gear
440: first projection 445: second projection
450: first barn section 455: second barn section
480: step motor 485: step gear
490: magnet 472: Hall sensor
Claims (14)
Priority Applications (1)
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KR20090016628U KR200460748Y1 (en) | 2009-12-21 | 2009-12-21 | Lamp shield driving device and adaptive headlamp device using the same |
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KR20090016628U KR200460748Y1 (en) | 2009-12-21 | 2009-12-21 | Lamp shield driving device and adaptive headlamp device using the same |
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KR20110006481U KR20110006481U (en) | 2011-06-29 |
KR200460748Y1 true KR200460748Y1 (en) | 2012-06-08 |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101356151B1 (en) | 2011-05-23 | 2014-01-24 | 에스엘 주식회사 | Automotive headlamp system and cotrolling method for the same |
KR101249003B1 (en) * | 2011-11-25 | 2013-04-01 | 에스엘 주식회사 | Apparatus and method for controlling head lamp |
KR20150076945A (en) | 2013-12-27 | 2015-07-07 | 현대모비스 주식회사 | Automotive headlamp |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005259473A (en) | 2004-03-10 | 2005-09-22 | Koito Mfg Co Ltd | Projection type vehicular head lamp |
KR100913545B1 (en) * | 2007-10-26 | 2009-08-21 | 에스엘 주식회사 | A lamp shield driving apparatus and lamp assembly using the same |
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2009
- 2009-12-21 KR KR20090016628U patent/KR200460748Y1/en active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005259473A (en) | 2004-03-10 | 2005-09-22 | Koito Mfg Co Ltd | Projection type vehicular head lamp |
KR100913545B1 (en) * | 2007-10-26 | 2009-08-21 | 에스엘 주식회사 | A lamp shield driving apparatus and lamp assembly using the same |
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KR20110006481U (en) | 2011-06-29 |
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