JP7244307B2 - Vehicle lighting control device, vehicle lighting control method, vehicle lighting system - Google Patents

Description

The present invention relates to a vehicle lamp .

Japanese Patent Application Laid-Open No. 2013-82390 (Patent Document 1) describes a variable light distribution control system that variably sets the brightness distribution of illumination light forward of the vehicle according to the running speed of the vehicle. With this system, when the vehicle is traveling at high speeds, the light distribution pattern is set so that the brightness of the area in the center or near the center of the illuminated light in the vehicle width direction is greater, and when the vehicle is traveling at low speeds, there is a difference in brightness from the center to the left and right. A light distribution pattern is set so that the brightness changes smoothly with less light (see FIG. 5 of Patent Document 1).

In Japanese Patent Application Laid-Open No. 2014-237346 (Patent Document 2), by increasing or decreasing the amount of light emitted from each of a plurality of light sources according to the steering angle of the vehicle, the location with the highest illuminance in the light distribution pattern can be detected. A vehicle headlamp device that executes control (so-called electronic swivel control) to move the headlamp in the left-right direction is described. In this vehicle headlamp device, if the non-irradiation area is formed in the light distribution pattern according to the position where the forward vehicle exists before the electronic swivel control is executed, the position where the illuminance is the highest due to the electronic swivel control. At least one of the plurality of light sources corresponding to the non-irradiation area after the movement is interlocked with the movement so that the non-irradiation area moves in the direction opposite to the moving direction of the place where the illuminance is the highest in the light distribution pattern. Control is performed to turn off the light.

By the way, as described above, the light distribution pattern is variably set according to the vehicle state such as the vehicle speed and the steering angle, and a non-illuminated area (or a dimming area) is provided in the light distribution pattern according to the position of the vehicle ahead. In some cases, the light irradiation area and the non-irradiation area may not be set appropriately. This is because when the brightness of each partial area in the light distribution pattern is changed, the width of the light that is actually applied to that partial area changes.

JP 2013-82390 A JP 2014-237346 A

One of the objects of a specific aspect of the present invention is to provide a technique capable of setting an appropriate light attenuation region (or non-irradiation region) and light irradiation region.

[1] A control device according to one aspect of the present invention is (a) a device for controlling a vehicle lamp that forms a light distribution pattern by arranging light emitted from each of a plurality of light emitting units in the vehicle width direction. (b) setting the brightness of the light emitted from each of the plurality of light emitting units according to the running state of the vehicle;
setting a combination pattern of the irradiation width of each of the irradiation light according to the brightness of the irradiation light from each of the set light emitting units; and setting the combination pattern of the irradiation width of each of the irradiation light. and a position of an object existing around the own vehicle to specify an irradiation light overlapping with the object, and control the vehicle lamp so as to dim the irradiation light. is a control device.
[2] A control device according to one aspect of the present invention is (a) a device for controlling a vehicle lamp that forms a light distribution pattern by arranging light emitted from each of a plurality of light emitting units in the vehicle width direction. (b) an illumination light setting unit for setting brightness of illumination light emitted from each of the plurality of light emitting units according to the running state of the vehicle; (d) an object existing in the vicinity of the own vehicle; and the combination pattern of the irradiation width of each of the irradiation lights to identify the irradiation light that overlaps with the target, and control the vehicle lamp so as to dim the irradiation light that overlaps with the target. and a dimming control unit for controlling a vehicle lamp.
[3] A control method according to one aspect of the present invention is (a) a method for controlling a vehicle lamp that forms a light distribution pattern by arranging light emitted from each of a plurality of light emitting units in the vehicle width direction. (b) setting the brightness of the light emitted from each of the plurality of light emitting units according to the running state of the vehicle; , by setting a combination pattern of the irradiation width of each of the irradiation lights, and comparing the set combination pattern of the irradiation width of each of the irradiation lights with the position of an object existing around the own vehicle; A control method for a vehicle lamp, wherein the vehicle lamp is controlled so as to identify the irradiation light overlapping the object and to reduce the intensity of the irradiation light.
[4] A control method according to one aspect of the present invention is (a) a method for controlling a vehicle lamp that forms a light distribution pattern by arranging light emitted from each of a plurality of light emitting units in the vehicle width direction. (b) a first step in which the control device sets the brightness of the light emitted from each of the plurality of light emitting units according to the running state of the vehicle; (d) a second step of setting a combination pattern of irradiation widths of the irradiation light according to the brightness of the irradiation light from each of the plurality of light emitting units set in one step; and identifying the irradiation light overlapping the object by comparing the position of the object existing around the own vehicle and the combination pattern of the irradiation width of each of the irradiation lights, and determining the irradiation light overlapping the object. and a third step of controlling the vehicle lamp to dim.
[5] A vehicle lighting system according to one aspect of the present invention is a vehicle lighting system including the control device described above and a vehicle lighting device controlled by the control device.

According to the above configuration, it is possible to set an appropriate dimming region (or non-irradiation region) and light irradiation region.

FIG. 1 is a diagram showing the configuration of a vehicle lamp system according to one embodiment. 2A and 2B are schematic diagrams for explaining the configuration of each lamp unit. FIG. 3A is a diagram schematically showing high beams formed in front of the host vehicle. FIG. 3B is a diagram for explaining the lighting rate in each segment. FIG. 3C is a diagram showing an example of the irradiation range (light distribution split angle) of each segment. FIG. 4A is a diagram schematically showing high beams formed in front of the host vehicle. FIG. 4B is a diagram for explaining the lighting rate in each segment. FIG. 4C is a diagram showing an example of the irradiation range (light distribution split angle) of each segment. FIG. 5A is a diagram schematically showing high beams formed in front of the host vehicle. FIG. 5B is a diagram for explaining the lighting rate in each segment. FIG. 5C is a diagram showing an example of the irradiation range (light distribution split angle) of each segment. FIG. 6 is a flowchart for explaining the operation of the control device in the vehicle lamp system of this embodiment. FIGS. 7A and 7B are diagrams for explaining an example of the effects obtained by the vehicle lamp system of this embodiment.

FIG. 1 is a diagram showing the configuration of a vehicle lamp system according to one embodiment. The vehicle lighting system shown in the figure adjusts the high beam light irradiation range and dimming range ( Alternatively, the non-irradiation range) is variably set, and the light intensity distribution of the high beam is variably set according to the running state (advance direction, etc.) of the vehicle to irradiate light forward of the vehicle. This vehicle lighting system includes an imaging unit 1, a control device 2, a nonvolatile memory 3, and a pair of lamp units 4L and 4R.

The imaging unit 1 is for detecting the position of the forward vehicle, and includes a camera 10 and an image processing section 11 . The camera 10 photographs the space around the own vehicle. The image processing unit 11 performs predetermined image recognition processing on the basis of the video (image) obtained by the camera 10 to detect the position of the forward vehicle as a target and transmit the position data to the control device 2 . supply to The position of the forward vehicle output from the image recognition unit 11 is represented, for example, by a relative angle with respect to the position of the own vehicle.

The control device 2 receives position data (position information) of the forward vehicle obtained from the imaging unit 1, and vehicle speed and steering angle (steering angle of the steering wheel) information obtained from various sensors (not shown) provided in the own vehicle. , to control the lighting state of the pair of lamp units 4L and 4R. The control device 2 is constructed by executing a predetermined operation program in a computer system including, for example, a CPU, a ROM, and a RAM. The control device 2 has a lighting rate setting section 20, a light distribution split angle setting section 21, a light distribution pattern setting section 22, and a lighting control section 23 as functional blocks. The lighting rate setting unit 20 corresponds to the “irradiation light setting unit”, the light distribution split angle setting unit 21 corresponds to the “irradiation width setting unit”, and the light distribution pattern setting unit 22 and the lighting control unit 23 correspond to the “decrease setting unit”. It corresponds to the "light control unit".

The lighting rate setting section 20 sets the lighting rate of each of the plurality of light emitting sections provided in the high beam light source 40 of each of the lamp units 4L and 4R based on the running state (mainly steering angle and speed) of the own vehicle. The brightness of the light emitted by each light emitting unit is set according to this lighting rate.

The light distribution split angle setting unit 21 sets the light distribution split indicating the irradiation range (that is, the irradiation width) of the irradiation light formed by each light emitting unit based on the lighting rate of each light emitting unit set by the lighting rate setting unit 20. Sets the angle combination pattern.

Based on the combination pattern of the light distribution split angle set by the light distribution split angle setting unit 21 and the positional information of the forward vehicle obtained from the imaging unit 1, the light distribution pattern setting unit 22 determines the high beam irradiation range of A predetermined range corresponding to the position of the forward vehicle is set as a dimming range (or a light shielding range), and the other range is set as a light irradiation range.

The lighting control section 23 generates a light distribution control signal for performing light irradiation according to the light irradiation range and the dimming range set by the light distribution pattern setting section 22, and supplies the light distribution control signal to each of the lamp units 4L and 4R.

A pair of lamp units 4L and 4R are installed at predetermined positions on the left and right sides of the front of the vehicle, and emit light to form high beams (running lights) and low beams (passing lights). Each lamp unit 4L, 4R has a high beam light source 40 and a low beam light source 41, respectively.

The high beam light source 40 is for irradiating a high beam, and includes, for example, an LED array in which a plurality of LEDs (light emitting elements) are arranged in one direction, and a driving circuit that supplies driving power to the LED array. ing. Each LED of the high beam light source 40 can individually control the lighting state (on/off, brightness, etc.). The drive circuit controls the light brightness (luminance) of each LED by PWM control or current control, for example.

The low beam light source 41 is for irradiating a low beam, and includes, for example, several LEDs and a driving circuit for driving them. In the following description, detailed description of the low beam including illustration is omitted, but it is assumed that the low beam is appropriately irradiated together with the high beam.

2A and 2B are schematic diagrams for explaining the configuration of each lamp unit. As shown in FIG. 2A, each lamp unit 4L, 4R includes a high beam light source 40 and a lens 42 arranged in front thereof, and a low beam light source 41 and a lens 43 arranged in front thereof. . As shown in FIG. 2(B), the lens 42 is arranged in front of the high beam light source 40, collects the light emitted from the high beam light source 40 to form a high beam, and directs the high beam to the front of the vehicle. Project. Similarly, the lens 43 is arranged in front of the low beam light source 41, collects the light emitted from the low beam light source 41 to form a low beam, and projects it forward of the vehicle.

FIG. 3A is a diagram schematically showing high beams formed in front of the host vehicle. Here, high beams formed in front of the own vehicle traveling on a straight road at a relatively low speed (for example, less than 50 km/h) are schematically shown. In order to make the explanation easier to understand, the high beam formed mainly from the center of the vehicle to the front right is shown, and the high beam formed from the center of the vehicle to the front left is not shown (the same applies hereinafter). ).

As illustrated, the high beam HB includes five segments S1, S2, S3, S4, and S5 arranged in the vehicle width direction (horizontal direction in the drawing). In the high beam HB of this embodiment, the brightness (illuminance) of the illumination light is individually controlled for each segment. For example, in this embodiment, the high-beam light source 40 of each lamp unit 4L, 4R has five light-emitting portions, and each of these five light-emitting portions corresponds to the segments S1 to S5 one-to-one. In addition, each light-emitting part is configured including, for example, one or a plurality of LEDs.

In the illustrated high beam HB, each segment S1-S5 partially overlaps with each other segment. Specifically, segment S1 overlaps a portion of each of segments S2 and S3. Segment S2 overlaps a portion of each of segments S1, S3-S5. Segment S3 overlaps a portion of each of segments S1-S5. Segment S4 overlaps a portion of each of segments S2-S5. Segment S5 overlaps a portion of each of segments S2-S4.

The high beam HB becomes brighter in areas where more segments overlap. Therefore, it has an illuminance distribution in which the center is brighter and the brightness decreases toward the periphery. When there is an oncoming vehicle 100 in the oncoming lane, the high beam HB is controlled so that the segments (all the segments S1 to S5 in the illustrated example) overlapping the location (range) of the oncoming vehicle 100 are dimmed.

FIG. 3B is a diagram for explaining the lighting rate in each segment. As shown in the figure, the lighting rate of the corresponding light emitting portion of the high beam light source 40 is set for each of the segments S1 to S5. The lighting rate referred to here is, for example, the light emission luminance of each light emitting unit set at a maximum light emission luminance of 100%. The width (illumination width) of each segment S1 to S5 increases or decreases according to the lighting rate assigned to each segment.

FIG. 3C is a diagram showing an example of the irradiation range (light distribution split angle) of each segment. The irradiation range of each segment is represented, for example, by an angle based on the center of the own vehicle. Here, with the center of the vehicle as a reference, the right direction is positive and the left direction is negative. Also, the irradiation range (irradiation width) of each segment is called a "light distribution split angle". The light distribution split angle of segment S1 is in the range of 7.8° to 18.2°. The light distribution split angle of segment S2 is in the range of 5.2° to 15.0°. The light distribution split angle of segment S3 is in the range of 2.6° to 10.8°. The light distribution split angle of segment S4 is in the range of -0.4° to 7.0°. The light distribution split angle of the segment S5 is in the range of -3.4° to 3.4°. Thus, a combination pattern of the light distribution split angles for each of the segments S1 to S5 is set corresponding to the straight road (low speed). Here, the irradiation range is a range in which light having an illuminance equal to or higher than a predetermined reference value is irradiated from the light source section corresponding to each segment.

FIG. 4A is a diagram schematically showing high beams formed in front of the host vehicle. Here, high beams formed in front of the own vehicle traveling on a curved road (curved road) to the right are schematically shown. In the illustrated high beam HB, the widths of the segments S1 to S5 are different from those of the straight road (low speed) described above. Segment S1 overlaps a portion of each of segments S2 and S3. Segment S2 overlaps a portion of each of segments S1, S3, and S4. Segment S3 overlaps a portion of each of segments S1, S2, and S4. Segment S4 overlaps a portion of each of segments S2, S3 and S5. Segment S5 overlaps a portion of each of segments S3 and S4.

The high beam HB becomes brighter in areas where more segments overlap. For this reason, it is the same as the straight road (low speed) described above in that the brightness is brighter toward the center and the brightness decreases toward the periphery, but the illuminance distribution is different from the above straight road because the way the segments overlap is different. different. Also in the case of a curved road, the high beam HB is controlled so that when there is an oncoming vehicle 100 in the oncoming lane, the segments (segments S2 to S5 in the illustrated example) that overlap the existing position (range) of the oncoming vehicle 100 are dimmed. be done.

FIG. 4B is a diagram for explaining the lighting rate in each segment. The lighting rate set for each of the segments S1 to S5 is different from that for the straight road described above. The width of each segment S1 to S5 increases or decreases according to the lighting rate assigned to each segment.

FIG. 4C is a diagram showing an example of the irradiation range (light distribution split angle) of each segment. The light distribution split angle of segment S1 is in the range of 8.8° to 12.8°. The light distribution split angle of segment S2 is in the range of 5.6° to 11.8°. The light distribution splitting angle of segment S3 is in the range of 2.8° to 9.8°. The light distribution split angle of segment S4 is in the range of -0.4° to 6.6°. The light distribution split angle of the segment S5 is in the range of -3.2° to 3.2°. Thus, a combination pattern of the light distribution split angles for each of the segments S1 to S5 is set corresponding to the curved road.

FIG. 5A is a diagram schematically showing high beams formed in front of the host vehicle. Here, high beams formed in front of the own vehicle traveling on a straight road at a relatively high speed (for example, 50 km/h or more) are schematically shown. In the illustrated high beam HB, the widths of the segments S1 to S5 are different for the straight road (low speed) and the curved road. Segment S1 overlaps a portion of each of segments S2 and S3. Segment S2 overlaps a portion of each of segments S1, S3, and S4. Segment S3 overlaps a portion of each of segments S1, S2, S4, and S5. Segment S4 overlaps a portion of each of segments S2, S3 and S5. Segment S5 overlaps a portion of each of segments S3 and S4.

In this high beam HB, too, the brightness increases in areas where more segments overlap. For this reason, it is the same as the above-mentioned straight road (low speed) in that the brightness is brighter in the center and the brightness decreases toward the periphery, but the above-mentioned straight road and curved road are different because the way each segment overlaps is different. has a different illuminance distribution. Even in the case of a straight road (high speed), when there is an oncoming vehicle 100 in the oncoming lane, the high beam HB is dimmed in the segments (segments S2 to S5 in the illustrated example) that overlap the existing position (range). controlled as

FIG. 5B is a diagram for explaining the lighting rate in each segment. The lighting rate set for each of the segments S1 to S5 is different from that for the straight road described above. The width of each segment S1 to S5 increases or decreases according to the lighting rate assigned to each segment.

FIG. 5C is a diagram showing an example of the irradiation range (light distribution split angle) of each segment. The light distribution splitting angle of segment S1 is in the range of 8.2° to 14.8°. The light distribution split angle of segment S2 is in the range of 5.0° to 15.0°. The light distribution split angle of segment S3 is in the range of 2.2° to 11.4°. The light distribution split angle of segment S4 is in the range of -0.8° to 7.4°. The light distribution split angle of the segment S5 is in the range of -3.8° to 3.8°. In this manner, a combination pattern of the light distribution split angles for each of the segments S1 to S5 is set corresponding to the straight road (high speed).

FIG. 6 is a flowchart for explaining the operation of the control device in the vehicle lamp system of this embodiment. It should be noted that the processing procedure described below is an example, and it is possible to replace the processing procedure or add another processing procedure as long as there is no inconsistency in the operation.

The lighting rate setting unit 20 acquires vehicle speed information and steering angle information from various sensors of the host vehicle (step S11), and based on the vehicle speed information and steering angle information, emits light corresponding to each segment S1 to S5 of the high beam HB. A lighting rate (basic light distribution) to be assigned to each part is set (step S12). This lighting rate can be set by referring to a data table stored in advance in the nonvolatile memory 3, for example.

Specifically, based on the vehicle speed information, the lighting rate setting unit 20 determines that the vehicle is running at high speed when the vehicle speed is equal to or greater than a predetermined threshold, and determines that the vehicle is running at low speed when the vehicle speed is less than the threshold. and set the corresponding lighting rate (see FIGS. 3(B) and 5(B)). The threshold can be set, for example, at 50 km/h. In addition, based on the steering angle information, the lighting rate setting unit 20 determines that the steering angle is equal to or greater than a predetermined threshold value, and sets the lighting rate corresponding to it (see FIG. 4 (B)). )reference). Although the explanation is omitted, it is also preferable that different lighting rates are set depending on whether the course is to the right or to the left. Further, when the vehicle is traveling on a curved road, it is also preferable to set the lighting rate individually according to the vehicle speed.

Next, the light distribution split angle setting unit 21 sets a combination pattern of the light distribution split angles of the segments S1 to S5 based on the lighting rate of the light emitting unit corresponding to each segment set by the lighting rate setting unit 20. (step S13). For example, for each segment, a data table of light distribution split angles obtained from the lighting rate assigned to that segment is stored in advance in the non-volatile memory 3. By referring to the data table, the distribution of each segment can be determined. A combination pattern of the light splitting angles is set (see FIGS. 3(C), 4(C), and 5(C)).

Next, the light distribution pattern setting unit 22 acquires the position information of the forward vehicle from the imaging unit 1 (step S14), and determines whether or not there is a forward vehicle whose high beam should be partially blocked. (Step S15). For example, when the position of the forward vehicle is included within a predetermined angular range in front of the host vehicle, it is determined that the forward vehicle to be shaded exists.

If there is a forward vehicle to be shaded (step S15; YES), the light distribution pattern setting unit 22 sets position information (angle information) of the forward vehicle and each segment set by the light distribution division angle setting unit 21. By comparing the combination patterns of the light distribution split angles, the segment that should be the light irradiation range and the segment that should be the dimming range are set (step S16).

For example, if the position of the vehicle ahead is in the range of 2.2° to 7.0°, this range is compared with the light distribution split angle for each segment. Specified as light range. In the above example, in the case of a straight road (low speed), all of the segments S1 to S5 overlap with the position of the preceding vehicle, so all of these segments are set in the dimming range (see FIG. 3(C)). On the other hand, in the case of a curved road and a straight road (high speed), only the segments S2 to S5 overlap, so the segment S1 is set to the light irradiation range and the segments S2 to S5 are set to the dimming range (see FIG. 4). (C), see FIG. 5(C)).

Next, the lighting control unit 23 performs light irradiation based on the lighting rate set by the lighting rate setting unit 20 and based on the light irradiation range and the dimming range set by the light distribution pattern setting unit 22. A light distribution control signal is generated and output to each lamp unit 4L, 4R (step S17). Based on this light distribution control signal, the lamp units 3L and 3R form a high beam and illuminate the front of the vehicle. After that, the process returns to step S11.

On the other hand, if there is no forward vehicle to be shaded (step S15; NO), there is no need to set the dimming range. In this case, based on the lighting rate set by the lighting rate setting section 20, the lighting control section 23 generates a light distribution control signal for performing light irradiation with all segments as the light irradiation range, and the lamp units 4L and 4R are generated. (step S17). Based on this light distribution control signal, the lamp units 3L and 3R form a high beam and illuminate the front of the vehicle. After that, the process returns to step S11.

FIG. 7A is a diagram for explaining an example of the effect obtained by the vehicle lamp system of this embodiment. FIG. 7A schematically shows the high beam HB in the case of the curved road described above. As described above, when the lighting rate is set to be variable according to the running state, the appropriate light distribution split angle is obtained accordingly, and the light irradiation range and the dimming range are set using it. , the right segment S1 of the oncoming vehicle 100 is set as the light irradiation range. Thereby, the visibility of the right side area of the oncoming vehicle 100 can be improved. On the other hand, in the comparative example shown in FIG. 7B, the light irradiation range and the dimming range are set using the same light distribution split angle as for the straight road (low speed) even in the case of the curved road. The segment S1 is also set in the light shielding range, and the visibility in this area is reduced. It should be noted that the effect shown here is only an example, and on the contrary, there may be cases where the segment to be set as the dimming range is appropriately set.

According to the above embodiments, it is possible to set an appropriate light distribution pattern according to the running state of the own vehicle.

It should be noted that the present invention is not limited to the contents of the above-described embodiments, and various modifications can be made within the scope of the gist of the present invention. For example, the aspects such as the number and shape of the segments in the above-described embodiment are examples, and are not limited to these. The present invention may also be applied to a lighting system used in vehicles other than four-wheeled vehicles (for example, two-wheeled vehicles).

Further, in the above-described embodiment, an oncoming vehicle was exemplified as an object to be dimmed, but the object is not limited to this. For example, a preceding vehicle may be the target object, or a pedestrian, a bicycle, or the like may be the target object. Further, although the imaging unit is exemplified as the detection means for these objects, detection means such as radar may be used.

Further, in the above-described embodiment, the light distribution split angle of each segment was set each time based on the lighting rate of each segment according to the driving state of the own vehicle. The light distribution split angle may be stored as data in advance in the non-volatile memory 3, and the light distribution split angle of each segment may be set by appropriately reading out the data.

1: imaging unit, 2: control device, 3: nonvolatile memory, 4L, 4R: lamp unit (vehicle lamp), 10: camera, 11: image processing unit, 20: lighting rate setting unit, 21: light distribution division Angle setting unit 22: Light distribution pattern setting unit 23: Lighting control unit 40: High beam light source 41: Low beam light source 42, 43: Lens 100: Forward vehicle

Claims (8)

A device for controlling a vehicle lamp that forms a light distribution pattern by arranging light emitted from each of a plurality of light emitting units in the vehicle width direction,
setting the brightness of the light emitted by each of the plurality of light emitting units according to the running state of the vehicle; setting a combination pattern of irradiation widths, and comparing the set combination pattern of irradiation widths of the irradiation light with the position of an object existing around the own vehicle, so that the irradiation overlaps with the object controlling the vehicle lamp so as to identify the light and dim the emitted light;
A control device for a vehicle lamp. A device for controlling a vehicle lamp that forms a light distribution pattern by arranging light emitted from each of a plurality of light emitting units in the vehicle width direction,
an irradiation light setting unit that sets the brightness of the irradiation light from each of the plurality of light emitting units according to the running state of the own vehicle;
an irradiation width setting unit that sets a combination pattern of the irradiation widths of the irradiation light according to the brightness of the irradiation light from each of the plurality of light emitting units set by the irradiation light setting unit;
By comparing the position of an object existing around the own vehicle and the combination pattern of the irradiation width of each of the irradiation lights, the irradiation light that overlaps with the object is specified, and the irradiation light that overlaps with the object is reduced. a dimming control unit that controls the vehicle lamp to emit light;
A control device for a vehicle lamp, comprising: The running state of the own vehicle is the vehicle speed of the own vehicle and/or the traveling direction of the own vehicle,
3. The control device for a vehicle lamp according to claim 1. A combination pattern of irradiation widths of each of the irradiation lights is set by referring to a data table prepared in advance.
A control device for a vehicle lamp according to any one of claims 1 to 3. the brightness of the light emitted by each of the plurality of light emitting units is set by the lighting rate of each of the plurality of light emitting units;
A control device for a vehicle lamp according to any one of claims 1 to 4. A method for controlling a vehicle lamp that forms a light distribution pattern by arranging light emitted from each of a plurality of light emitting units in the vehicle width direction, comprising:
setting the brightness of the light emitted by each of the plurality of light emitting units according to the running state of the vehicle; setting a combination pattern of irradiation widths, and comparing the set combination pattern of irradiation widths of the irradiation light with the position of an object existing around the own vehicle, so that the irradiation overlaps with the object controlling the vehicle lamp so as to identify the light and dim the emitted light;
A control method for a vehicle lamp. A method for controlling a vehicle lamp that forms a light distribution pattern by arranging light emitted from each of a plurality of light emitting units in the vehicle width direction, comprising:
a first step in which the control device sets the brightness of the light emitted from each of the plurality of light emitting units according to the running state of the host vehicle;
a second step in which the control device sets a combination pattern of the irradiation width of each of the irradiation lights according to the brightness of the irradiation light from each of the plurality of light emitting units set in the first step;
The control device identifies the irradiation light that overlaps with the object by comparing the position of the object existing around the own vehicle and the combination pattern of the irradiation width of each of the irradiation lights, and identifies the irradiation light that overlaps with the object. a third step of controlling the vehicle lamp so as to dim the overlapping illumination light;
A method of controlling a vehicle lamp, comprising: A vehicle lighting system comprising: the control device according to any one of claims 1 to 5; and a vehicle lighting device controlled by the control device.

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