KR20140103581A - Apparatus and method for controlling lamp of vehicle - Google Patents

Apparatus and method for controlling lamp of vehicle Download PDF

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Publication number
KR20140103581A
KR20140103581A KR1020130017125A KR20130017125A KR20140103581A KR 20140103581 A KR20140103581 A KR 20140103581A KR 1020130017125 A KR1020130017125 A KR 1020130017125A KR 20130017125 A KR20130017125 A KR 20130017125A KR 20140103581 A KR20140103581 A KR 20140103581A
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KR
South Korea
Prior art keywords
vehicle
road
distance
lamp
point
Prior art date
Application number
KR1020130017125A
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Korean (ko)
Inventor
김동훈
이재익
차현철
Original Assignee
주식회사 에스엘라이팅
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Priority to KR1020130017125A priority Critical patent/KR20140103581A/en
Publication of KR20140103581A publication Critical patent/KR20140103581A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor 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
    • B60Q1/08—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor 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
    • B60Q1/12—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor 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 due to steering position
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • G01C21/34—Route searching; Route guidance
    • G01C21/3453—Special cost functions, i.e. other than distance or default speed limit of road segments
    • G01C21/3492—Special cost functions, i.e. other than distance or default speed limit of road segments employing speed data or traffic data, e.g. real-time or historical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/10—Indexing codes relating to particular vehicle conditions
    • B60Q2300/11—Linear movements of the vehicle
    • B60Q2300/112—Vehicle speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/30—Indexing codes relating to the vehicle environment
    • B60Q2300/32—Road surface or travel path
    • B60Q2300/322—Road curvature

Abstract

The present invention relates to an apparatus and a method for controlling a lamp for a vehicle and, more specifically, to an apparatus and a method for controlling a lamp for a vehicle by integrating information on a road extracted from a navigation device and the driving speed of the vehicle. According to an embodiment of the present invention, the apparatus for controlling a lamp for a vehicle comprises a location confirming part for confirming the location of a vehicle driven on a road; a speed determining part for determining the driving speed of the vehicle; a distance calculating part for calculating a direction changing point which exists in the front of the confirmed location, and the distance between the vehicles; and an operating part for controlling the light radiating direction of the lamp equipped in the vehicle based on the distance, the driving speed of the vehicle, and a road curvature at a point where the road meets a direction changing road including the direction changing point.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vehicle lamp control apparatus and method, and more particularly, to a vehicular lamp control apparatus and method for controlling operation of a vehicle lamp by integrating driving speed of a vehicle and information about roads extracted from a navigation apparatus .

2. Description of the Related Art Generally, a vehicle includes a lamp module having a lighting function for easily identifying an object located in the vicinity of the vehicle at nighttime, and a signal function for notifying other vehicle or road users of the traveling state of the vehicle.

For example, headlights and fog lights are aimed at lighting functions, and turn signal lights, taillights, brake lights, side markers and the like are intended for signal functions.

Among these, the vehicle headlamp has an essential function of securing the driver's view at night by irradiating light in the same direction as the running direction of the vehicle.

Such a vehicle headlamp is difficult to make an optimal operating environment according to the driving state of the vehicle, for example, the driving speed of the vehicle, the driving direction, the road surface condition and the ambient brightness, The adaptive headlight system adaptively changes the light distribution pattern according to the driving state of the vehicle by changing the cutoff pattern of the light generated from the light source to be different from each other.

In addition, a technology has also been developed in which the irradiation direction of the lamp is switched in the direction in which the traveling direction is switched. For example, when the driver changes the driving direction in the left direction, the illumination direction of the lamp is also changed to the left direction at a certain angle, thereby adaptively securing the driver's view according to the driving direction of the vehicle.

However, according to the conventional technique, since the irradiation direction of the lamp is determined merely by considering the curvature of the road, a sufficient field of view can not be secured. In other words, the point of interest of the driver is determined by various conditions such as the running speed of the vehicle. According to the conventional technology, the lamp can be irradiated to a point other than the point of interest of the driver.

Therefore, it is required to develop an invention that can ensure a sufficient field of view for a driver who drives a vehicle at night by determining the direction of irradiation of the lamp in consideration of various conditions associated with running of the vehicle.

Japanese Patent No. 4,069,769 (Jan. 25, 2008)

An object of the present invention is to control the operation of a vehicle lamp by integrating information on the driving speed of the vehicle and the road extracted from the navigation apparatus.

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

In order to achieve the above object, a lamp controller for a vehicle according to an embodiment of the present invention includes a position determining unit for determining a position of a vehicle on a running road during running, a speed determining unit for determining a running speed of the vehicle, A distance calculating section for calculating a distance between a direction change point present in front of the identified position and the vehicle; a road curvature at a point where the direction change road including the direction change point meets the running road; And a driving unit for adjusting the light irradiation direction of the lamp provided in the vehicle with reference to the distance.

A method for controlling a lamp for a vehicle according to an embodiment of the present invention includes the steps of: confirming a position of a vehicle on a running road; determining a traveling speed of the vehicle; Calculating a distance between the vehicle and the vehicle, referring to the curvature of the road, the traveling speed of the vehicle, and the distance at a point where the directional road including the direction switching point meets the traveling road, And adjusting the light irradiation direction.

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

According to the vehicle lamp control apparatus and method of the present invention as described above, the operation speed of the vehicle lamp is controlled by integrating the traveling speed of the vehicle and the information about the road extracted from the navigation apparatus, thereby improving the recognition efficiency of the driver's point of interest .

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing that a light irradiation direction of a vehicle lamp is adjusted according to an embodiment of the present invention. Fig.
FIG. 2 is a view showing that the light irradiation direction is determined according to the embodiment of the present invention. FIG.
3 is a view showing a distance between a vehicle and a direction switching point according to an embodiment of the present invention.
4 is a block diagram showing a vehicle lamp control apparatus according to an embodiment of the present invention.
5 is a table showing speed weights according to an embodiment of the present invention.
FIG. 6 is a table showing distance weights according to an embodiment of the present invention.
FIGS. 7 to 12 show that the light irradiation direction is adjusted according to the embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. 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. Is provided to fully convey 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.

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.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing that a light irradiation direction of a vehicle lamp is adjusted according to an embodiment of the present invention. Fig.

The head lamp of the vehicle 100 is illuminated forward to secure the driver's view at night. However, on a straight road, the headlamp secures the view of the driver sufficiently, but on a road accompanied by a directional change such as an intersection, the headlamp does not receive sufficient visibility because it illuminates only the front of the driver, not the point of interest of the driver.

For this purpose, the vehicle lamp according to the embodiment of the present invention can adjust the light irradiation direction to the left and right. For example, when the running direction of the vehicle 100 is switched to the left, the light irradiation direction of the lamp is switched to the left, and when the running direction of the vehicle 100 is switched to the right, .

FIG. 1 shows a light distribution pattern of the lamp according to the present invention, which shows a front light distribution pattern 110, a left light distribution pattern 120, and a right light distribution pattern 130.

On the other hand, the light irradiation direction is determined according to the shape of the road, and the shape of the road is very irregular. In addition, when the light irradiation direction is determined in consideration of only the shape of the road, it may interfere with the driver.

For example, if there is a direction change section in front of the vehicle 100 in motion, the light irradiation direction can be adjusted. If the light irradiation direction is changed too early or the light irradiation direction is changed too early, The light distribution pattern is formed at an unintentional point, which may interfere with the operation of the driver.

The vehicle lamp control apparatus 400 according to the embodiment of the present invention may be configured so that the driver's interest in the vehicle 100 can be determined not only by the shape of the road but also by various environments. Can adjust the light irradiation direction of the lamp with reference to the road curvature 210, the traveling speed 220 of the vehicle 100, and the distance 230 between the direction switching point 303 and the vehicle 100.

Fig. 2 is a view showing a light irradiation direction determined according to an embodiment of the present invention. The road curvature 210, the traveling speed 220 of the vehicle, and the distance 230 of the vehicle are taken into consideration And the light irradiation direction 200 is determined.

In the present invention, the curvature of the road 210 means the curvature of the road at the point 302 where the travel road 700 and the direction change road 800 meet. That is, when the traveling road 700 is connected to the direction switching road 800, a curved road is formed. The curvature of the curved road formed in this way is the road curvature 210 according to the embodiment of the present invention.

Therefore, in the case of traveling the curved road 700, the curvature at this time is not the curvature formed by connecting the travel road 700 and the directional road 800, 0.

Alternatively, the greatest curvature among the curvatures corresponding to the path connecting the vehicle 100 and the turning point 303 may be the road curvature 210 of the present invention.

The lamp control apparatus 400 for a vehicle according to the present invention adjusts the light irradiation direction 200 so as to face forward when the road curvature 210 is 0 and the road curvature 210 when the road curvature 210 is not 0, The traveling speed 220 of the vehicle, and the distance 230 between the traveling speed 220 and the direction switching point 303 of the vehicle. Hereinafter, a distance 230 between the vehicle 100 and the direction switching point 303 is referred to as a direction switching distance.

On the other hand, in the present invention, the light irradiation direction 200 is not determined simply in proportion to the traveling speed 220 or the direction switching distance 230 of the vehicle. For example, as the traveling speed 220 of the vehicle is higher, the light irradiation direction angle is larger and the traveling speed 220 is lower, the light irradiation direction angle is not decreased.

According to the embodiment of the present invention, the light irradiation direction angle becomes larger as the traveling speed 220 of the vehicle becomes higher, but when the traveling speed 220 is equal to or larger than a certain size, the light irradiation direction angle is proportional to the traveling speed 220 .

The relationship between the traveling speed 220 and the light irradiation direction angle is similarly applied to the relationship between the direction switching distance 230 and the light irradiation direction angle.

In other words, basically, as the direction changing distance 230 becomes smaller, the light irradiation direction angle becomes larger, but when the direction switching distance 230 is less than a certain size, the light irradiation direction angle can be made smaller in proportion to the direction switching distance 230 will be.

A detailed description of the relationship between the traveling speed 220 or the direction switching distance 230 and the light irradiation direction angle will be described later with reference to FIG. 5 and FIG.

3 is a view showing a distance between a vehicle and a direction switching point according to an embodiment of the present invention.

In the present invention, the road can be divided into a traveling road 700 and a direction switching road 800. Here, the traveling road 700 means a road on which the vehicle 100 is currently traveling, and the redirecting road 800 indicates a road connected to the traveling road 700 so that the vehicle 100 can leave the traveling road 700 it means.

For example, when the vehicle 100 enters the intersection intersection, the straight road in the intersection intersection is the running road 700, and the left or right turn road is the turnover road 800. [

In addition, in the present invention, a road means a road defined as a vehicle 100 can be driven by a navigation device (not shown). The vehicle lamp control apparatus 400 according to the embodiment of the present invention adjusts the light irradiation direction 200 of the lamp with reference to the position information and the route guidance information received from the navigation apparatus, It is possible to guide the traveling route of the vehicle 100 using the map.

In this way, the vehicle lamp control device 400 can receive the information about the traveling route from the navigation device. Since the information about the traveling route is generated based on the map stored in the navigation device, the vehicle lamp control device 400 ) Means a road defined as a vehicle 100 can be driven by a navigation device.

The direction change point 303 in the present invention is a direction in which the entire body of the vehicle 100 enters the turning point 800 when the vehicle 100 enters the turning turning road 800 it means.

The direction change point 230 in the present invention means the distance between the front of the vehicle 100 and the direction change point 303 so that the direction change point 303 allows the vehicle 100 to move out of the roadway 700 It can be understood as a point corresponding to the front of the vehicle 100 when the entire vehicle body is completely contained in the redirecting road 800 as soon as possible.

The redirection distance 230 is the distance 310 from the current point to the point 301 where the redirection begins and the distance 320 from the point 301 where redirection begins to the redirection point 303, And the like.

Here, the point 301 at which the direction change starts may be determined according to the width of the running road 700, the width of the direction changing road 800, and the road curvature 210.

The road curvature 210 indicates the curvature of the road at the point 302 where the driving road 700 and the direction switching road 800 meet as shown in FIG.

4 is a block diagram of a vehicle lamp control device 400 according to an embodiment of the present invention. The vehicle lamp control device 400 includes a position determination unit 410, a speed determination unit 420, a storage unit 430, a control unit 440, a driving unit 450, an angle calculating unit 460, and a distance calculating unit 470.

The position confirming unit 410 confirms the position of the vehicle 100 on the running road 700 in the running state. In the present invention, the vehicular lamp control apparatus 400 is mounted inside the vehicle 100. [ Therefore, it is understood that the position confirming unit 410 confirms the position of the vehicle 100 mounting the lamp controller 400 for a vehicle.

A GPS (Global Positioning System) receiver may be used as the position confirming unit 410 for confirming the position, and an encoder for checking the number of revolutions of the wheel may be used. However, it is needless to say that the position determining unit 410 according to the embodiment of the present invention is not limited to this, and the position of the vehicle 100 can be confirmed by using various means in combination.

The location of the vehicle 100 identified by the location confirmation unit 410 may be represented by a geographical coordinate value such as WGS84 and may be represented by an identification value separately provided to represent each geographical point.

The speed determination unit 420 determines the traveling speed 220 of the vehicle 100. [ For example, the vehicle speed meter may serve as the speed determination unit 420, but the position identified by the position determination unit 410 may be used for speed determination.

That is, the speed determiner 420 can determine the speed of the vehicle 100 by referring to the distance between two different positions and the elapsed time required to travel by the distance, May have a timer or a clock.

Also, the speed determiner 420 may determine the travel speed 220 of the vehicle 100 by referring to the value output by the encoder.

The distance calculating unit 470 calculates the distance between the direction changing point 303 and the vehicle 100 located in front of the position of the vehicle 100 confirmed by the position confirming unit 410, And to perform the function of calculating.

As described above, the direction switching distance 230 is set to a distance 310 from the position of the vehicle 100 identified by the position determining unit 410 to the point 301 where the direction switching starts, And the distance 320 from the point 301 to the direction change point 303. The distance calculation unit 470 calculates the width of the travel road 700 and the distance It is possible to determine the point 301 at which the direction change starts in consideration of the width and the road curvature 210 and calculate the direction change distance 230. [

The position determining unit 410 checks the width of the traveling road 700 and the width of the direction switching road 800 and the curvature of the road 210 as well as the position of the vehicle 100 and outputs the distance to the distance calculating unit 470 Such information may be extracted through a map stored in the storage unit 430. [

That is, the map stored in the storage unit 430 includes information about the width of each road and the curvature of the road 210. The position determination unit 410 determines the position and direction of the vehicle 100, The width 800 of the traveling road 700, the width of the direction switching road 800 and the road curvature 210 can be extracted from the storage unit 430 by checking the road 800. [

The driving unit 450 includes the curvature of the road 210 at the point 302 where the directional road 800 including the directional switching point 303 meets the driving road 700, And adjusts the light irradiation direction 200 of the lamp provided in the vehicle 100 with reference to the distance 230.

Since the curvature of the road 210 has a constant value, the driving speed 220 and the direction switching distance 230 may vary with time. Therefore, the driving unit 450 may continuously change the traveling speed 220 and the direction The light irradiation direction 200 of the lamp can be adjusted in consideration of the switching distance 230. [

In addition, the driving unit 450 can adjust the light irradiation direction 200 of the lamp with reference to the speed weight corresponding to the speed section including the traveling speed 220 among a plurality of predetermined speed sections.

FIG. 5 shows a table 500 showing speed weights according to an embodiment of the present invention.

5, when a currently sensed traveling speed 220 is included in a specific speed section, a speed weight corresponding to the speed section is included in the light irradiation direction 200, And the like.

The following is a formula for determining the light irradiation direction 200 of the lamp according to an embodiment of the present invention.

[Equation 1]

? = R? (? _max / R_max) V_w x D_w

Where R_max represents a maximum curvature previously determined to be recognizable, and V_w represents a maximum curvature that can be recognized by the lamp, Represents a speed weight, and D_w represents a distance weight.

That is, the driving unit 450 is capable of adjusting the light irradiation direction 200 of the lamp with reference to the preset maximum curvature of the curvature and the maximum rotation angle of the lamp. If the maximum curvature of the curvature or the maximum rotation angle of the lamp is deviated, Lt; RTI ID = 0.0 > 450 < / RTI >

Meanwhile, the distance weight may be determined by applying different mathematical expressions using the direction switching distance 230 as a parameter according to a distance interval including the direction switching distance 230 among a plurality of distance intervals set in advance.

For example, when the distance interval is set to 0 to 50 m and 50 to 100 m, the mathematical expression when the direction switching distance 230 is included in the range of 0 to 50 m and the mathematical expression when included in the range of 50 to 100 m may be different from each other The following equation shows this.

&Quot; (2) "

D_w = d / d_thr (0 = d <50)

&Quot; (3) &quot;

D_w = 1 - 0.02 x (d - d_thr) (50 = d <100)

Here, d represents the direction switching distance 230, d_thr represents the critical distance, and Equations (2) and (3) can be understood to represent cases where the critical distance is 50. [ That is, Equation (2) represents a distance weight when the direction switching distance 230 is 0 m or more and less than 50 m, and Equation (3) represents a distance weight when the direction switching distance 230 is 50 m or more and less than 100 m .

The reason why the threshold distance is set and the different equations are applied is that the running pattern of the vehicle changes as it approaches the direction switching point 303. [ In other words, when the direction change point 303 is at a long distance, the vehicle travels straight, but when the direction change point 303 is close to the vehicle, the vehicle is curved. As the travel pattern is different, different mathematical expressions .

As a result, in the present invention, the critical distance can be understood to correspond to the distance 320 from the point 301 at which the above-described redirection starts to the redirection point 303.

In addition, the distance weight may be determined according to a predetermined distance range rather than the above equation, which is shown in Fig.

The angle calculation section 460 can calculate the angle of the light irradiation direction 200 of the lamp that is controlled by the driving section 450, The vehicle curvature 210 at the point 302 where the directional road 800 including the driving road 700 meets the driving road 700 and the traveling speed 220 and the directional switching distance 230 of the vehicle, The angle calculating unit 460 can calculate the angle of rotation of the lamp using Equations (1), (2), and (3) described above.

In the present invention, the role of the location confirmation unit 410 and the storage unit 430 may be performed by a navigation device. That is, when the vehicle 100 is provided with a separate navigation device, the vehicle lamp control device 400 determines the point of interest with reference to the position of the vehicle 100 received from the navigation device, the road curvature 210, and the like The angle of rotation of the lamp can be determined.

In addition, the navigation device plays a role of determining a route to a destination input by a user, and transmits information on the route to the location confirmation unit 410. The route determination unit (not shown) And may be provided in the vehicle lamp control apparatus 400. [

In order to request data transmission to the navigation device and receive data from the navigation device, the vehicle lamp control device 400 preferably includes communication means (not shown) capable of communicating with the navigation device.

The control unit 440 performs overall control on the position determining unit 410, the speed determining unit 420, the storing unit 430, the driving unit 450, the angle calculating unit 460, and the distance calculating unit 470 .

FIGS. 7 to 12 show that the light irradiation direction is adjusted according to the embodiment of the present invention.

The driver of the vehicle 100 traveling on the driving road 700 at night illuminates the lamp provided in the vehicle 100 in order to secure the field of view so that the light distribution pattern 110 Is formed.

7 shows a light distribution pattern 110 formed in front of the vehicle 100. Since the distance 230 between the vehicle 100 and the turning point 303 is out of a predetermined threshold value, And the light distribution pattern 110 is formed toward the front.

Meanwhile, the vehicle lamp control device 400 according to the embodiment of the present invention already knows the road to be driven in the future. As the vehicle 100 approaches the turning point 303, the vehicle lamp control device 400 Adjust the angle of rotation of the lamp.

8 and 9 show that the rotational angle of the lamp is adjusted as the vehicle 100 approaches the turn-off point 303. Fig. That is, when the direction change point 303 is relatively long, the rotation angle is small, but when the direction change point 303 is close to the ground, the rotation angle becomes large.

8 and 9 show the light distribution pattern 140 of a solid line and the light distribution pattern 111 of a dotted line. In addition to the light distribution patterns shown in FIGS. 10 and 12 as well as FIGS. 8 and 9, The light distribution pattern 140 represents the light distribution pattern formed by the actual lamp, and the light distribution pattern 111 by the dotted line represents the virtual light distribution pattern in the case where the light distribution pattern 111 is not rotated.

10 to 12 are diagrams showing the light distribution pattern 140 when the vehicle 100 enters the redirecting road 800 and the front side of the vehicle 100 is located at the redirecting point 303, that is, when the entire body of the vehicle 100 is included in the redirecting road 800, the rotational angle of the lamp is 0 degrees so that the light distribution pattern 140 is formed to face forward .

Although the above description has been made with reference to FIGS. 7 to 12 that the rotation angle of the lamp is determined according to the distance 230 between the vehicle 100 and the turning point 303, The rotational speed of the lamp may be reflected to determine the rotational angle of the lamp.

12 shows that the rotation angle of the lamp is 0 degrees and the light distribution pattern 140 is directed to the front. However, if there is a direction change road (not shown) existing afterward, A light distribution pattern (not shown) may be formed.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

410: Position confirming unit 420: Speed determining unit
430: storage unit 440:
450: driving unit 460; The angle-
470: Distance calculation unit

Claims (10)

A position confirming unit for confirming the position of the vehicle on the running road during running;
A speed determining unit for determining a traveling speed of the vehicle;
A distance calculating unit for calculating a distance between the direction change point and the vehicle existing in front of the identified position; And
And a driving unit for adjusting the light irradiation direction of the lamp provided in the vehicle with reference to the curvature of the road, the traveling speed of the vehicle, and the distance at a point where the directional switching road including the direction switching point meets the traveling road Vehicle lamp control device. The method according to claim 1,
Wherein the driving unit adjusts the light irradiation direction of the lamp with reference to a speed weight corresponding to a speed section including the traveling speed among a plurality of predetermined speed sections. 3. The method of claim 2,
Wherein the distance weight is determined by applying different mathematical expressions using the distance as a parameter according to a distance section including the distance among a plurality of distance sections set in advance. The method according to claim 1,
Wherein the driving unit adjusts a light irradiation direction of the lamp with reference to a maximum curvature of a road set in advance and a maximum rotation angle of the lamp. The method according to claim 1,
Wherein the direction change point is the first point where the entire body of the vehicle is included in the direction change road when the vehicle enters the direction change road for changing direction. Confirming the position of the vehicle on the running road during running;
Determining a traveling speed of the vehicle;
Calculating a distance between a direction change point and a vehicle existing in front of the identified position; And
Adjusting the light irradiation direction of the lamp provided in the vehicle with reference to the curvature of the road, the traveling speed of the vehicle, and the distance at a point where the direction road including the direction switching point and the traveling road meet, A method for controlling a lamp for a vehicle. The method according to claim 6,
Wherein the step of adjusting the light irradiation direction of the lamp includes adjusting a light irradiation direction of the lamp with reference to a speed weight corresponding to a speed section including the traveling speed among a plurality of preset speed sections, Control method. 8. The method of claim 7,
Wherein the distance weight is determined by applying different mathematical expressions using the distance as a parameter according to a distance section including the distance among a plurality of distance sections set in advance. The method according to claim 6,
Wherein the step of adjusting the light irradiation direction of the lamp includes adjusting a light irradiation direction of the lamp with reference to a preset maximum curvature of curvature and a maximum rotation angle of the lamp. The method according to claim 6,
Wherein the direction change point is the first point at which the entire body of the vehicle is included in the direction change road when the vehicle enters the direction change road for changing direction.
KR1020130017125A 2013-02-18 2013-02-18 Apparatus and method for controlling lamp of vehicle KR20140103581A (en)

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