KR20160077726A - A lamp apparatus for vehicles - Google Patents

Abstract

The present invention relates to a lamp apparatus for a vehicle. The lamp apparatus for the vehicle comprises: a first light source module which forms a low beam pattern; a second light source module which has a plurality of first light sources to form a first beam pattern to be overlapped with the low beam pattern, and a plurality of second light sources arranged on a top of the first light sources to form a second beam pattern in a remote distance farther than the first beam pattern; and a controller which individually controls the first and second light sources. As such, the present invention improves a visibility for a driver by individually controlling a plurality of light sources.

Description

[0001] The present invention relates to a lamp apparatus for vehicles,

The present invention relates to a vehicular lamp apparatus, and more particularly, to a vehicular lamp apparatus that controls a plurality of light sources forming a high beam pattern individually to superimpose a part of a high beam pattern on a low beam pattern, .

Generally, a vehicle has a lighting function for easily confirming an object located in the vicinity of the vehicle at nighttime driving, and a lamp having a signal function for notifying other vehicle or road users of the running state of the vehicle.

Among the lamps mounted on the vehicle, the headlamp is a lamp including a function of securing the front view of the driver at nighttime driving, and generally includes a low beam (downward beam) irradiated near the front of the vehicle and a low beam It is equipped with a function to simultaneously or separately irradiate high beams (upward beams) irradiated to a long distance.

In the driver's viewpoint, it is the safest way to operate the vehicle because it is possible to simultaneously observe the driver's view of the near and far parts of the vehicle in front of the vehicle by simultaneously scanning the low beam and the high beam. However, It causes the glare of the pedestrian to be dangerous to prevent the visibility during the time required for the adaptation and the dark adaptation.

In recent years, in order to increase the road visibility of the driver and enable safer running, a counter vehicle, a preceding vehicle, a pedestrian, and the like are detected from a video image in front of the vehicle, and a place where a detected vehicle, a pedestrian, Adaptive drive beam (ADB) technology that changes the angle of the ramp so that the vehicle does not turn on, and when the vehicle turns on and turns on the headlamp at night, the vehicle headlamp moves to the left and right to correspond to the curve, Dynamic Bending Lighting function is applied to improve visibility.

However, since the ADB function and the DBL function must be performed by moving the headlamps vertically and horizontally using separate mechanical structures, the structure of the vehicular lamp unit is complicated, and production costs and power consumption are increased have.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vehicular lamp apparatus that controls a plurality of light sources forming a high beam pattern individually and superimposes a part of a high beam pattern on a low beam pattern to improve the visibility of a driver's road.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a lamp unit for a vehicle, comprising: a first light source module for forming a low beam pattern; A plurality of first light sources for forming a first beam pattern overlapping with the low beam pattern; a plurality of second light beams arranged on the first light source and forming a second beam pattern at a longer distance than the first beam pattern; A second light source module including a light source; And a controller for individually controlling the first light source and the second light source.

According to an embodiment, the controller may turn on / off the first light source and the second light source or adjust the brightness.

According to an embodiment, the controller controls the first light source to turn on at least one first light source disposed in a direction corresponding to the curved line of the plurality of first light sources, .

The number of the first light sources that are turned on or increased in brightness by the controller according to one embodiment may be proportional to the curvature of the curve.

According to one embodiment, the controller can turn off (or turn off) the second light source corresponding to the position of the opposite vehicle or reduce the brightness.

According to an embodiment, the plurality of first light sources and the plurality of second light sources may be arranged in the lateral direction.

According to an embodiment, a cut-off line may be formed in the low beam pattern, and the first beam pattern may be formed on the lower side of the cut-off line.

According to one embodiment, the controller may cause the second beam pattern to form a high beam pattern by turning on the plurality of second light sources or increasing the brightness.

According to an embodiment, the controller may turn on a first light source disposed in an intermediate region of the plurality of first light sources, or increase the light intensity so that the first beam pattern forms a spot pattern.

The details of other embodiments are included in the detailed description and drawings.

According to the lamp unit for a vehicle of the present invention, one or more of the following effects can be obtained.

A plurality of light sources for forming a high beam pattern are individually controlled so that a part of the high beam pattern is superimposed on the low beam pattern to reinforce the low beam pattern, a dynamic bending light (DBL) function and the like, So that the visibility of the road of the driver is improved.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is a schematic view of a vehicle equipped with a lamp unit for a vehicle according to an embodiment of the present invention.
2 is a block diagram showing the configuration of a lamp unit for a vehicle according to an embodiment of the present invention.
3 is a block diagram schematically illustrating a connection relationship between the second light source module and the controller of the lamp unit for a vehicle according to an embodiment of the present invention.
4 is a view schematically showing a beam pattern formed by a lamp unit for a vehicle according to an embodiment of the present invention.
5 is a view schematically showing a beam pattern formed by a vehicle lamp unit when the vehicle is traveling on a right curved line according to an embodiment of the present invention.
Fig. 6 is a view schematically showing a beam pattern formed by a vehicular lamp unit when the vehicle travels on a left curve according to an embodiment of the present invention. Fig.
Fig. 7 is a view schematically showing a beam pattern formed by a vehicular lamp unit when the vehicle is traveling on a highway according to an embodiment of the present invention. Fig.
Fig. 8 is a view schematically showing a beam pattern in which a dark zone along the opposite vehicle appears in Fig. 7. Fig.
9 is a view schematically showing a spot beam pattern formed by a lamp unit for a vehicle according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. &Quot; comprises " and / or "comprising" when used in this specification is taken to specify the presence or absence of one or more other components, steps, operations and / Or additions.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

Hereinafter, the present invention will be described with reference to the drawings for explaining a lamp unit for a vehicle according to embodiments of the present invention.

1 is a schematic view of a vehicle equipped with a lamp unit for a vehicle according to an embodiment of the present invention.

Referring to FIG. 1, a vehicle lamp unit 1 according to an embodiment of the present invention is provided on both sides of a front side of a vehicle 2 so that the vehicle 2 travels at night or in a dark place such as a tunnel The vehicle lamp unit 1 is a headlamp that allows a driver to secure a forward view of the vehicle. The vehicle lamp unit 1 is provided with a low beam pattern P1, 4), high beam patterns (P2, P3, see Fig. 4), and the like.

The present invention is not limited to this, but may be applied to a vehicle lamp 2 such as a tail lamp, a brake lamp, a fog lamp, a turn signal lamp, a position lamp, ). ≪ / RTI >

The vehicle lamp device 1 may include various lamps such as a position lamp or a turn signal lamp in addition to the lamps that form the low beam pattern P1 and the high beam patterns P2 and P3 described above, The lamps forming the high beam patterns P1 and P2 and the high beam patterns P3 may be respectively installed and the low beam patterns P1 and the high beam patterns P2 and P3 may be formed together in one lamp .

2 is a block diagram showing the configuration of a lamp unit for a vehicle according to an embodiment of the present invention. 3 is a block diagram schematically illustrating a connection relationship between the second light source module and the controller of the lamp unit for a vehicle according to an embodiment of the present invention.

Referring to FIGS. 2 and 3, a vehicle lamp according to an embodiment of the present invention includes a first light source module 110, a second light source module 120, and a controller 200. The on-vehicle lamp unit 1 may further include a sensing unit 300.

FIG. 2 illustrates one of the lamp units for vehicles provided on both sides of the vehicle 2 (see FIG. 1) as shown in FIG. 1, and there may be some differences in the installation direction and the like. Lt; / RTI >

The first light source module 110 irradiates light toward the front side of the vehicle 2 (see Fig. 1) to form a low beam pattern P1.

The second light source module 120 includes a plurality of first light sources 121a to 121e (see FIG. 3) forming a first beam pattern P2 (see FIG. 4) overlapping with the low beam pattern P1 (see FIG. 4) And a plurality of second light sources 122a to 122e which are disposed above the first light sources 121a to 121h and form a second beam pattern P3 (see Fig. 4) at a distance from the first beam pattern P2, 3).

As the plurality of first light sources 121a to 121h and the plurality of second light sources 122a to 122h, a semiconductor light emitting device such as an LED (Light Emitting Diode) or an LD (Laser Diode) may be used.

3, the plurality of first light sources 121a to 121h and the plurality of second light sources 122a to 122h are arranged in the vertical direction, and the plurality of first light sources 121a to 121h are arranged in the horizontal direction . The plurality of second light sources 122a to 122h are disposed on the upper side of the first light sources 121a to 121h and arranged in the lateral direction. Accordingly, the plurality of first light sources 121a to 121h and the plurality of second light sources 122a to 122h may have a matrix structure as a whole.

The plurality of first light sources 121a to 121h and the plurality of second light sources 122a to 122h are connected to the controller 200 through individual channels. Accordingly, the plurality of first light sources 121a to 121h and the plurality of second light sources 122a to 122h can be turned on / off (turned on / off) by the controller 200 or the light intensity can be individually controlled.

Since the plurality of second light sources 122a to 122h are disposed on the upper side of the plurality of first light sources 121a to 121h, the light is emitted from a longer distance than the first light sources 121a to 121h. Thus, the second beam pattern P3 can be formed at a greater distance from the vehicle 2 (see Fig. 1) than the first beam pattern P2.

The controller 200 controls the first light source module 110 and the second light source module 120 based on the sensing information input from the sensing unit 300. The controller 200 includes a plurality of first light sources 121a to 121h and a plurality of first light sources 121a to 121h through channels individually connected to the plurality of first light sources 121a to 121h and the plurality of second light sources 122a to 122h, The second light sources 122a to 122h of the light source unit 100 can be separately controlled.

The controller 200 can individually turn on / off the plurality of first light sources 121a to 121h and the plurality of second light sources 122a to 122h. The controller 200 controls the amount of current applied to the plurality of first light sources 121a to 121h and the plurality of second light sources 122a to 122h so that the first light sources 121a to 121h and the second light sources 122a to 122h can be controlled. The controller 200 will be described later in detail.

The sensing unit 300 is configured to sense information about the road on which the vehicle 2 (see FIG. 1) is running, information about the preceding vehicle or the opposite vehicle located in front of the vehicle 2 (see FIG. 1) Information can be detected.

For example, the sensing unit 300 may measure the width of a head lamp or a tail lamp obtained from an image photographed by a camera provided in the vehicle 2 (see FIG. 1), the wavelength of light generated from the head lamp or the tail lamp, It is possible to detect the preceding vehicle or the opposite vehicle on the basis of this.

Also, the sensing unit 300 can obtain road information from the steering angle of rotation, navigation, and the like, and obtain road information on which the vehicle is traveling. Accordingly, the sensing unit 300 can sense whether the vehicle is traveling on a highway, a vehicle is traveling on a curved road, a vehicle is traveling in a city area, and the like.

In FIG. 3, the first beam pattern P2, the second beam pattern P3, and the low beam pattern P1 are shown as separated from each other. However, the first beam pattern P2, the second beam pattern P3, Practically, the boundaries of the respective patterns appear superimposed on each other.

4 is a view schematically showing a beam pattern formed by a lamp unit for a vehicle according to an embodiment of the present invention.

Referring to FIG. 4, the first light source module 110 of the lamp unit 1 (see FIG. 3) according to an embodiment of the present invention forms a low beam pattern P1 for near vision, The module 120 forms a high beam pattern for a far field of view.

The positions of the plurality of first light sources 121a to 121h shown in FIG. 3 correspond to the first beam pattern P2 of the matrix structure shown in FIG. Further, the positions of the plurality of second light sources 122a to 122h shown in Fig. 3 correspond to the second beam pattern P3 of the matrix structure shown in Fig.

A plurality of first light sources 121a to 121h in the second light source module 120 form a first beam pattern P2 overlapping the low beam pattern P1. In one embodiment of the present invention, the first beam pattern P2 may be formed below the cut-off line of the low beam pattern P1 and overlap with the low beam pattern P1.

The first beam pattern P2 irradiated from the plurality of first light sources 121a to 121h is overlapped with the low beam pattern P1 so that the low beam pattern P1 is reinforced, Visibility is improved. However, the controller 200 causes the first beam pattern P2 to overlap within a range that satisfies the light distribution rule for the low beam pattern P1.

The first beam pattern P2 is formed by a plurality of first light sources 121a to 121h arranged in a row in a row, but the present invention is not limited to this, One beam pattern P2 may be formed by a plurality of first light sources arranged in two or more rows in a transverse direction.

3, the controller 200 is connected to a plurality of first light sources 121a to 121h that form the first beam pattern P2 in individual channels, and the plurality of first light sources 121a- 121h are individually turned on / off or the brightness is adjusted.

In the second light source module 120, the plurality of second light sources 122a to 122h form a second beam pattern P3 at a distance from the first beam pattern P2. In an embodiment of the present invention, the second beam pattern P3 is formed generally on the upper side of the cut-off line of the low beam pattern P1.

However, a part of the second beam pattern P3 may overlap with a part of the upper end of the low beam pattern P1. Accordingly, a part of the second beam pattern P3 is formed in a region located below the horizontal line H corresponding to the eye height of the driver in the cut-off line of the low beam pattern P1, Can be prevented from deteriorating.

In an embodiment of the present invention, the second beam pattern P3 is formed by a plurality of second light sources 122a to 122h arranged transversely in a row, but the present invention is not limited to this, The two beam patterns P3 may be formed by a plurality of second light sources 122a to 122h arranged in two or more rows in a transverse direction.

3, the controller 200 is connected to the plurality of second light sources 122a to 122h, which form the second beam pattern P3, in separate channels, and the plurality of second light sources 122a- 122h are individually turned on / off or the brightness is adjusted. Accordingly, the vehicular lamp apparatus makes it possible to form various beam patterns. Various beam patterns formed by controlling the first light sources 121a to 121h and the second light sources 122a to 122h by the controller 200 will be described below.

The controller 200 may also be configured to turn on at least one first light source disposed in a direction corresponding to a curved path among the plurality of first light sources 121a to 121h, .

For example, when the vehicle is traveling on the right curved line, the controller 200 is arranged in the right direction among the plurality of first light sources 121a to 121h so that the controller 200 turns on at least one light source 121a to 121c, . The controller 200 may also be configured to turn on at least one of the light sources 121f to 121h disposed on the left side of the plurality of first light sources 121a to 121h or to increase the light intensity have. A detailed description thereof will be described with reference to Figs. 5 and 6. Fig.

In addition, the number of the first light sources, which are turned on by the controller when the vehicle travels in a curved path, or whose brightness increases is proportional to the curvature of the curved line. Therefore, when the curvature of the curved line is large, the number of the first light sources that are turned on by the controller 200 or whose brightness increases is increased. For example, when the curvature to the right curved line is large, a space in which the vehicular lamp unit faces the right curved line becomes large. Therefore, when the number of the first light sources that are turned on or increased in brightness by the controller 200 increases, the area in which the vehicular lamp unit can emit light toward the right curved line increases. A detailed description thereof will be described with reference to Figs. 5 and 6. Fig.

5 is a view schematically showing a beam pattern formed by a vehicle lamp unit when the vehicle is traveling on a right curved line according to an embodiment of the present invention. Fig. 6 is a view schematically showing a beam pattern formed by a vehicular lamp unit when the vehicle travels on a left curve according to an embodiment of the present invention. Fig.

Referring to Fig. 5, the controller 200 (see Fig. 2) includes at least the first light source 121a to 121e (see Fig. 3) disposed on the right side of the vehicle 2 The first light sources 121a to 121d can be turned on or the brightness can be increased.

For example, when the vehicle 2 travels on the right curve, the controller 200 turns on the first light source 121a disposed on the right edge of the plurality of first light sources 121a to 121h, Increase the current value to increase the brightness. Accordingly, it is possible to secure an additional light distribution pattern in the traveling direction of the vehicle 2, and thus it is possible to ensure the visibility that the driver can easily see when driving on the right curved line.

In addition, the sensing unit 300 (see FIG. 2) can sense information such as the radius of curvature to the right curve, the right angle of the steering wheel of the vehicle, and the like. When the radius of curvature is small or the rotation angle is large, since the range in which the vehicle lamp unit 1 (see Fig. 1) needs to secure the visibility of the right side of the vehicle 2 becomes large, the first light sources 121a to 121d, The number of ONs can be increased. For example, when the vehicle 2 travels on the right curved line with a large radius of curvature, the first light source 121a disposed on the right edge of the first light sources 121a to 121h, The first light source 121b disposed on the left side is turned on or the current value supplied is increased to increase the brightness.

6, when the vehicle 2 travels on the left curved line, the controller 200 turns on at least one first light source 121e to 121h disposed on the left of the plurality of first light sources 121a to 121h (ON) or increase the brightness.

For example, when the vehicle 2 travels on the left curve, the controller 200 turns on the first light source 121h disposed at the left edge of the plurality of first light sources 121a to 121h, Increase the current value to increase the brightness. Thus, it is possible to secure an additional light distribution pattern in the running direction of the vehicle 2, thereby making it possible to ensure the visibility that the driver can easily see when driving on the left curve.

In addition, the sensing unit 300 may sense information such as a radius of curvature of the left curved line, a left turn angle of the steering wheel of the vehicle, and the like. When the radius of curvature is small or the rotation angle is large, the range in which the right lamp of the vehicle lamp unit 1 is required to secure the visibility of the vehicle 2 becomes large. Therefore, among the first light sources 121e to 121h disposed on the left side, ) Can be increased. For example, when the vehicle 2 is traveling on a left curved line having a large radius of curvature, the first light source 121h disposed at the left edge of the first light sources 121a to 121h and the first light source 121h The first light source 121g disposed on the right side is turned on or the current value supplied is increased to increase the brightness.

Accordingly, the vehicular lamp unit 1 can perform a DBL (Dynamic Bendin Lighting) function without moving through the plurality of first light sources 121a to 121h through a separate mechanical structure.

Fig. 7 is a view schematically showing a beam pattern formed by a vehicular lamp unit when the vehicle is traveling on a highway according to an embodiment of the present invention. Fig. Fig. 8 is a view schematically showing a beam pattern in which a dark zone along the opposite vehicle appears in Fig. 7. Fig.

Referring to Fig. 7, when the vehicle 2 travels on a road where a highway or a substantially straight section is maintained, the vehicle 2 travels at a high speed. Therefore, the driver can recognize the obstacle or the preceding vehicle by securing the distance vision.

In the embodiment of the present invention, the vehicle lamp device 1 (see Fig. 1) forms a second beam pattern P3, which is a high beam pattern together with the low beam pattern P1, The vehicle lamp device 1 (see Fig. 1) is provided with a low beam pattern P1, a first beam pattern P2 and a second beam pattern P3 at the same time .

Accordingly, the controller 200 (see FIG. 2) turns on the plurality of second light sources 122a to 122e (see FIG. 3) to form the second beam pattern P3 of the far vision. That is, the controller 200 may turn on the plurality of second light sources 122a to 122e (see FIG. 3) or increase the luminous intensity so that the second beam pattern forms a high beam pattern. However, the second beam pattern P3, which is a high beam pattern, causes glare to the driver of the preceding vehicle or the opposite vehicle.

8, when the controller 200 detects the preceding vehicle or the opposite vehicle on the basis of the information received from the sensing unit 300 (see FIG. 2), the controller 200 determines that the preceding vehicle or the opposite vehicle 122b, and 122c or to reduce the brightness.

For example, in one embodiment of the present invention, the controller 200 turns off the corresponding second light sources 122b and 122c when the opposite vehicle enters the second beam pattern (P3) region to form a dark zone. Accordingly, the vehicular lamp unit 1 (see Fig. 1) can prevent the glare of the opposed vehicle from being generated, while securing the near field and the far field of view. Accordingly, the vehicular lamp unit 1 (see FIG. 1) can perform the ABD (Adaptive drive beam) function without moving through the second light sources 122a to 122h through a separate mechanical structure.

9 is a view schematically showing a spot beam pattern formed by a lamp unit for a vehicle according to an embodiment of the present invention.

Referring to FIG. 9, the controller 200 (see FIG. 2) can form a spot beam pattern by irradiating a part of a plurality of first light sources 121d to 121e (see FIG. That is, the controller 200 turns on the first light sources 121d to 121e disposed in the middle area of the plurality of first light sources 121a to 121h (see FIG. 3) So that the beam pattern forms a spot pattern.

Here, the surveillance region of the driver is formed as a region in which the inclination is formed in the cut-off line. In response to this, the controller 200 turns on the first light sources 121d and 121e corresponding to the regions where the inclination is formed in the cut-off line among the plurality of first light sources 121a to 121h, . As a result, the viewing area of the driver is bright, thereby improving the visibility of the driver.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It should be understood that various modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.

1: vehicle lamp unit 2: vehicle
110: first light source module 120: second light source module
121a to 121h: First light sources 122a to 122h:
200: controller 300:
P1: low beam pattern P2: first beam pattern
P3: second beam pattern

Claims (9)

A first light source module forming a low beam pattern;
A plurality of first light sources for forming a first beam pattern overlapping the low beam pattern and a plurality of second light beams for forming a second beam pattern at a longer distance than the first beam pattern, A second light source module including a light source; And
And a controller for individually controlling the first light source and the second light source. The method according to claim 1,
Wherein the controller controls on / off (ON / OFF) or brightness of the first light source and the second light source. The method according to claim 1,
Wherein the controller turns on at least one first light source disposed in a direction corresponding to the curved line of the plurality of first light sources or increases the luminous intensity when the vehicle travels on a curved road. The method of claim 3,
Wherein the number of the first light sources that are turned on or increased in brightness by the controller is proportional to the curvature of the curved line. The method according to claim 1,
Wherein the controller turns off (or turns off) the second light source corresponding to the position of the opposed vehicle. The method according to claim 1,
Wherein the plurality of first light sources and the plurality of second light sources are arranged in the lateral direction. The method according to claim 1,
In the low beam pattern, a cut-off line is formed,
Wherein the first beam pattern is formed below the cut-off line. The method according to claim 1,
Wherein the controller causes the second beam pattern to form a high beam pattern by turning on the plurality of second light sources or increasing the luminous intensity. The method according to claim 1,
Wherein the controller causes the first beam pattern to form a spot pattern by turning on a first light source disposed in an intermediate region of the plurality of first light sources or increasing the luminous intensity.

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