WO2021200804A1 - Phare de véhicule et système de phare de véhicule - Google Patents

Phare de véhicule et système de phare de véhicule Download PDF

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Publication number
WO2021200804A1
WO2021200804A1 PCT/JP2021/013246 JP2021013246W WO2021200804A1 WO 2021200804 A1 WO2021200804 A1 WO 2021200804A1 JP 2021013246 W JP2021013246 W JP 2021013246W WO 2021200804 A1 WO2021200804 A1 WO 2021200804A1
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WO
WIPO (PCT)
Prior art keywords
vehicle
region
signal indicating
light
turning
Prior art date
Application number
PCT/JP2021/013246
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English (en)
Japanese (ja)
Inventor
雄太 丸山
Original Assignee
株式会社小糸製作所
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Publication date
Application filed by 株式会社小糸製作所 filed Critical 株式会社小糸製作所
Priority to JP2022512199A priority Critical patent/JP7561183B2/ja
Publication of WO2021200804A1 publication Critical patent/WO2021200804A1/fr

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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
    • 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
    • B60Q1/14—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 having dimming means

Definitions

  • the present invention relates to a vehicle headlight and a vehicle headlight system including the vehicle headlight.
  • a vehicle headlight that changes the light distribution pattern of the emitted light based on information from a detection device that detects another vehicle located in front of the vehicle is known.
  • the following Patent Document 1 describes such a vehicle headlight, and the vehicle headlight is located in front of the vehicle and a light emitting unit capable of changing the light distribution pattern of the emitted light.
  • This control unit controls the lamp so that the width of the region where the light irradiation is suppressed changes in the left-right direction according to the position of the other vehicle in the left-right direction.
  • Patent Document 1 does not consider the dazzling of the driver of the other vehicle when the other vehicle turns. Further, when the region where the light irradiation is suppressed is formed in the light distribution pattern as described above, a part of the light distribution pattern is darker than the other regions of the light distribution pattern, so that the front of the own vehicle Visibility tends to decrease.
  • the present invention is a vehicle headlight and a vehicle headlight that can suppress the dazzling of the driver of the other vehicle when the other vehicle turns and can suppress the deterioration of the front visibility of the own vehicle. It is an object of the present invention to provide a vehicle headlight system equipped with.
  • the present invention is a vehicle headlight mounted on a vehicle, which emits light having a changeable light distribution pattern toward another vehicle located in front of the vehicle. It is detected by the detection device and a determination unit that determines information from the unit and a detection device that detects the other vehicle and generates a signal indicating a turning operation of the other vehicle, which is at least one of a turning notice and a turn.
  • the control unit includes a control unit for inputting a signal indicating the other vehicle and a signal indicating the turning operation of the other vehicle, and the control unit is among the light distribution patterns when the signal indicating the other vehicle is input.
  • At least the region including the first region that overlaps all of the visual recognition portions for the driver of the other vehicle to visually recognize the outside of the vehicle is the total light beam of the light from the light emitting unit as compared with before the signal indicating the other vehicle is input.
  • the light emitting unit is controlled so as to be a dimmed region in which the amount is reduced and a signal indicating the turning operation of the other vehicle is further input in addition to the signal indicating the other vehicle, the light emitting unit is included in the dimmed region.
  • the light emission is such that at least the first region spreads toward the turning direction side of the other vehicle after the signal indicating the other vehicle is input and before the signal indicating the turning operation of the other vehicle is input.
  • the dimming region includes a second region that connects to the lower edge of the first region, with the left edge of the second region to the right of the left edge of the first region. It is characterized in that the right edge of the second region is located on the left side of the right edge of the first region.
  • the turning notice may be, for example, a state in which the turn lamp of another vehicle is blinking.
  • the turning direction side means a side on which another vehicle is scheduled to turn or a turning side when viewed from the own vehicle.
  • the right turn lamp of the other vehicle blinks, or the other vehicle is turning to the right, that is, when the other vehicle is turning to the right.
  • the turning direction side is on the right side when viewed from the own vehicle.
  • the left turn lamp of the other vehicle blinks or is turning to the left, that is, when the other vehicle is turning to the left, the turning direction.
  • the side is on the right side when viewed from the own vehicle.
  • a visual recognition unit for the driver of another vehicle to visually recognize the outside of the vehicle for example, a front window or the like can be mentioned when the other vehicle is an oncoming vehicle, and for example, a side mirror when the other vehicle is a preceding vehicle.
  • Rear window image pickup device that images the rear of the vehicle, and the like.
  • this vehicle headlight when a signal indicating a turning operation of another vehicle is input to the control unit, at least the first region of the dimming region is input with a signal indicating another vehicle. It spreads toward the turning direction side compared to before the signal indicating the turning notice of the other vehicle is input later. Therefore, the region of the light distribution pattern in which the line of sight of the driver of the other vehicle moves may be darker than the other regions of the light distribution pattern. Therefore, according to this vehicle headlight, it is possible to suppress dazzling of the driver of the other vehicle when the other vehicle turns.
  • the dimming region includes a second region connected to the lower edge of the first region, and the left edge of the second region is the first.
  • the right edge of the second region is located to the right of the left edge of the first region, and the right edge of the second region is located to the left of the right edge of the first region.
  • this vehicle headlight it is possible to suppress the dazzling of the driver of the other vehicle when the other vehicle turns, and it is possible to suppress the deterioration of the forward visibility in the own vehicle.
  • the dimming region includes a third region connected to the upper edge of the first region, and the control unit receives a signal indicating the turning operation of the other vehicle in addition to the signal indicating the other vehicle.
  • the light emitting unit may be controlled so that the edge of the third region on the turning direction side is located closer to the other vehicle than the edge of the first region on the turning direction side.
  • the spread of the third region located above the first region toward the turning direction is suppressed.
  • the proportion of the bright region in the light distribution pattern is larger than that in the case where the spread of the third region in the turning direction side is equivalent to the spread of the first region and the turning direction side. Therefore, it is possible to suppress a decrease in the front visibility of the own vehicle.
  • the control unit receives the signal indicating the turning operation of the other vehicle in addition to the signal indicating the other vehicle, and the control unit receives the signal indicating the turning operation of the other vehicle. It is preferable to control the light emitting unit so that the edge on the turning direction side does not move from the position before the signal indicating the turning operation of the other vehicle is input.
  • the dimming region includes the third region
  • the position of the upper edge of the first region in the vertical direction is above the roof panel of the other vehicle and the light distribution pattern. It is preferably located below the center between the upper edge and the roof panel.
  • the visible part of the other vehicle is generally located below the roof panel of the other vehicle. Therefore, if the upper edge of the first region is located above the roof panel, the entire visible portion can more reliably overlap the first region. Further, if the upper edge of the first region is located below the center between the upper edge of the light distribution pattern and the roof panel, it can be suppressed that the area of the third region becomes too small. .. Therefore, when another vehicle issues a turning notice, it is possible to further suppress the unnecessarily expanding of the dimming area, and it is possible to further suppress the deterioration of the front visibility of the own vehicle.
  • control unit when the control unit further inputs a signal indicating the turning operation of the other vehicle in addition to the signal indicating the other vehicle, the control unit is at least the edge of the first region on the turning direction side of the dimming region.
  • the light emitting unit may be controlled so as to move upward and away from the vertical line passing through the end of the other vehicle on the turning direction side.
  • the ratio of the bright region to the changed light distribution pattern can be increased as compared with the case where the dimming region is widened while the edge of the dimming region on the turning direction side is parallel to the vertical line. Therefore, it is possible to further suppress the deterioration of the front visibility of the own vehicle.
  • the determination unit determines the distance to the other vehicle based on the information from the detection device, and outputs a signal indicating the other vehicle to the control unit when the distance is equal to or less than a predetermined distance. May be good.
  • dazzling to other vehicles is more likely to occur as the distance to other vehicles is shorter. Therefore, by inputting a signal indicating another vehicle to the control unit when the distance is less than a predetermined distance, dazzling to the other vehicle can be effectively suppressed. Further, when the distance to another vehicle is larger than a predetermined distance, the dimming area does not widen, so that the visibility of the own vehicle can be improved while suppressing the dazzling of the other vehicle.
  • the vehicle headlight system of the present invention is characterized by including the vehicle headlight according to any one of the above and a detection device for detecting the other vehicle. Is.
  • This vehicle headlight system is equipped with the vehicle headlights described in any of the above. Therefore, this vehicle headlight can suppress the dazzling of the driver of the other vehicle when the other vehicle turns, and can suppress the deterioration of the front visibility of the own vehicle.
  • a vehicle headlight that can suppress the dazzling of the driver of the other vehicle when the other vehicle turns and can suppress the deterioration of the front visibility of the own vehicle and the said vehicle.
  • a vehicle headlight system with a vehicle headlight can be provided.
  • FIG. 1st Embodiment of this invention It is a top view which conceptually shows the vehicle which comprises the headlight for a vehicle and the headlight system for a vehicle according to 1st Embodiment of this invention. It is a side view which shows typically one light emitting unit shown in FIG. It is a front view which shows typically the light distribution pattern forming part shown in FIG. It is a figure which shows an example of the control flowchart of the control part in 1st Embodiment. It is a figure which shows the light distribution pattern of a high beam. It is a figure which shows an example of the light distribution pattern of the light emitted when the preceding vehicle is detected by the detection device. It is a figure which enlarges and shows the dimming region and its vicinity among the light distribution patterns shown in FIG.
  • FIG. 9 It is a figure which shows an example of the light distribution pattern of the light emitted when an oncoming vehicle is detected by a detection device. It is a figure which enlarges and shows the dimming region and its vicinity among the light distribution patterns shown in FIG. It is a figure which shows the state which the turn lamp of the preceding vehicle blinks from the same viewpoint as FIG. It is a figure which shows the state which changed the light distribution pattern shown in FIG. 7 from the same viewpoint as FIG. It is a figure which shows the state which the turn lamp of an oncoming vehicle blinks from the same viewpoint as FIG. It is a figure which shows the state which changed the light distribution pattern shown in FIG. 9 from the same viewpoint as FIG.
  • FIG. 1 is a plan view conceptually showing a vehicle 100 including a vehicle headlight and a vehicle headlight system according to the first embodiment.
  • the vehicle 100 includes a vehicle headlight system 2
  • the vehicle headlight system 2 includes a vehicle headlight 1 and another vehicle located in front of the vehicle 100.
  • a detection device 20 for detecting the above is provided.
  • the vehicle headlight 1 of the present embodiment is a headlight that can be mounted on an automobile as a vehicle.
  • the vehicle headlight 1 mainly includes a pair of left and right light emitting units 10, a control unit CO, a determination unit 25, a pair of power supply circuits 30, and a memory ME.
  • "right” means the right side from the viewpoint of the driver of the vehicle 100, which is the own vehicle
  • "left” means the driver of the vehicle 100, which is the own vehicle. It means the left side in the viewpoint.
  • the pair of light emitting units 10 have shapes that are substantially symmetrical with each other in the left-right direction of the vehicle 100, and emit light having a changeable light distribution pattern toward another vehicle located in front of the vehicle 100. .. Further, the configuration of one light emitting unit 10 is the same as the configuration of the other light emitting unit 10 except that the shape is substantially symmetrical. Therefore, in the following, one light emitting unit 10 will be described, and the other light emitting unit 10 will be omitted.
  • FIG. 2 is a side view schematically showing one of the light emitting units 10 shown in FIG.
  • the light emitting unit 10 includes a light distribution pattern forming unit 12, a projection lens 15, and a housing 16 as main configurations.
  • the housing 16 is shown in a vertical cross section.
  • the housing 16 includes a lamp housing 17, a front cover 18, and a back cover 19 as main configurations.
  • the front of the lamp housing 17 has an opening, and the front cover 18 is fixed to the lamp housing 17 so as to close the opening. Further, an opening smaller than that in the front is formed behind the lamp housing 17, and a back cover 19 is fixed to the lamp housing 17 so as to close the opening.
  • the space formed by the lamp housing 17, the front cover 18 that closes the front opening of the lamp housing 17, and the back cover 19 that closes the rear opening of the lamp housing 17 is a light chamber 10R.
  • the light distribution pattern forming unit 12 and the projection lens 15 are housed therein.
  • FIG. 3 is a front view schematically showing the light distribution pattern forming portion 12 shown in FIG.
  • the light distribution pattern forming unit 12 of the present embodiment includes a plurality of light emitting elements 13 that emit light, and a circuit board 14 on which the plurality of light emitting elements 13 are mounted.
  • the plurality of light emitting elements 13 are arranged in a matrix to form rows in the vertical direction and the horizontal direction, and emit light toward the front.
  • these light emitting elements 13 are LEDs (Light Emitting Diodes), and the light distribution pattern forming unit 12 is a so-called LED array.
  • the number of light emitting elements 13, the number of rows of light emitting elements 13, the number of light emitting elements 13 in each row of light emitting elements 13, the direction in which the light emitting elements 13 are arranged, and the type of the light emitting elements 13 are particularly limited. is not it.
  • Such a light distribution pattern forming unit 12 can form a predetermined light distribution pattern by selecting a light emitting element 13 that emits light. Further, the light distribution pattern forming unit 12 can adjust the light intensity distribution in a predetermined light distribution pattern by adjusting the intensity of the light emitted from each light emitting element 13.
  • the projection lens 15 is a lens that adjusts the divergence angle of incident light.
  • the projection lens 15 is arranged in front of the light distribution pattern forming unit 12, and the light emitted from the light distribution pattern forming unit 12 is incident, and the divergence angle of this light is adjusted by the projection lens 15.
  • the projection lens 15 is a lens having an incident surface and an exit surface formed in a convex shape, and the rear focal point of the projection lens 15 is the light of any light emitting element 13 in the light distribution pattern forming unit 12. It is located on or near the exit surface.
  • the divergence angle of the light emitted from the light distribution pattern forming unit 12 is adjusted by the projection lens 15, and the light of a predetermined light distribution pattern is emitted from the light emitting unit 10 toward the front of the vehicle 100 via the front cover 18.
  • control unit CO for example, an integrated circuit such as a microcontroller, an IC (Integrated Circuit), an LSI (Large-scale Integrated Circuit), an ASIC (Application Specific Integrated Circuit), or an NC (Numerical Control) device can be used. Further, when the NC device is used, the control unit CO may use a machine learning device or may not use a machine learning device. As will be described later, the control unit CO controls the pair of light emitting units 10.
  • IC Integrated Circuit
  • LSI Large-scale Integrated Circuit
  • ASIC Application Specific Integrated Circuit
  • NC Genetic Control
  • a light switch 35 included in the vehicle 100 is connected to the control unit CO.
  • the light switch 35 of the present embodiment is a switch that selects light emission or non-emission. For example, the light switch 35 outputs a signal indicating light emission to the control unit CO when the light switch 35 is on, and does not output a signal to the control unit CO when the light switch 35 is off.
  • the determination unit 25 determines whether or not the other vehicle detected by the detection device 20 satisfies a predetermined requirement based on the information from the detection device 20.
  • a predetermined requirement for example, the distance between the other vehicle and the vehicle 100 is not more than or equal to the predetermined distance. In the present embodiment, this predetermined distance is, for example, 100 m. However, the predetermined distance may be larger than 100 m.
  • the determination unit 25 When the determination unit 25 satisfies this predetermined requirement, the determination unit 25 generates a signal indicating another vehicle and outputs the signal to the control unit CO.
  • the determination unit 25 of the present embodiment precedes the other vehicle as a signal indicating the other vehicle.
  • a signal indicating a vehicle a signal relating to the distance from the vehicle 100 to the preceding vehicle, a signal indicating the position of a pair of red light spots in an image captured as information on the position of the preceding vehicle with respect to the vehicle 100, and the right or left side of the preceding vehicle.
  • a signal indicating that the turn lamp is on is output to the control unit CO.
  • the determination unit 25 of the present embodiment when the determination unit 25 of the present embodiment is in a state where the other vehicle satisfies a predetermined requirement and a signal that the other vehicle is an oncoming vehicle is input from the detection device 20, the determination unit 25 serves as a signal indicating the other vehicle.
  • a signal indicating an oncoming vehicle a signal indicating the distance from the vehicle 100 to the oncoming vehicle, a signal indicating the position of a pair of white light spots in an image captured as information on the position of the oncoming vehicle with respect to the vehicle 100, and a signal indicating the position of a pair of white light spots, and the right or left side of the oncoming vehicle.
  • a signal indicating that the turn lamp is blinking is output to the control unit CO.
  • the determination unit 25 does not output a signal to the control unit CO when the other vehicle does not satisfy the predetermined requirement or when the signal is not input from the detection device 20 to the determination unit 25. Therefore, it can be understood that the determination by the determination unit 25 changes the signal to be output in different cases according to the signal input from the detection device 20 in this way.
  • One power supply circuit 30 corresponds to one light emitting unit 10, and the other power supply circuit 30 corresponds to the other light emitting unit 10.
  • Each power supply circuit 30 includes a driver, and when a signal is input from the control unit CO, the power supplied to each light emitting element 13 of the light distribution pattern forming unit 12 is adjusted by this driver. In this way, the intensity of the light emitted from each light emitting element 13 is adjusted.
  • the driver of the power supply circuit 30 may adjust the power supplied to each light emitting element 13 by PWM (Pulse Width Modulation) control. In this case, by adjusting the duty cycle, the intensity of the light emitted from each light emitting element 13 is adjusted.
  • PWM Pulse Width Modulation
  • the memory ME is configured to store information and read the stored information.
  • the memory ME is, for example, a non-transitory recording medium, and a semiconductor recording medium such as RAM (Random Access Memory) or ROM (Read Only Memory) is suitable, but an optical recording medium or magnetic It may include any type of recording medium such as a recording medium.
  • the "non-transient" recording medium includes all computer-readable recording media except for transient propagation signals (transitory, propagating signal), and does not exclude volatile recording media. ..
  • a plurality of captured images captured by the imaging device are stored in the memory ME in association with the time when each captured image is captured. Further, the memory ME stores a table in which information on the light distribution pattern formed by the light emitted from the light emitting unit 10 and information on other vehicles detected by the detection device 20 are associated with each other. Examples of the information regarding the light distribution pattern formed by the light emitted from the light emitting unit 10 include information regarding the electric power supplied to each light emitting element 13 of the light distribution pattern forming unit 12. Information regarding the electric power supplied to each light emitting element 13 includes, for example, each light emitting element 13 when forming a high beam light distribution pattern described later and when forming a light distribution pattern according to a turning notice. Information on the power to be supplied can be mentioned.
  • information on the other vehicle detected by the detection device 20 for example, information on whether the other vehicle is a preceding vehicle or an oncoming vehicle, information on the distance from the vehicle 100 to the other vehicle, and information on the other vehicle with respect to the vehicle 100.
  • Information on the position, information on whether or not the turn lamp of another vehicle is blinking, and the like can be mentioned.
  • Information on the position of the other vehicle with respect to the vehicle 100 includes information on the position of a pair of light spots in the captured image, and information on whether or not the turn lamp of the other vehicle is blinking includes at least one in the captured image. Information on one orange light spot and the like can be mentioned.
  • the detection device 20 constitutes the vehicle headlight system 2 together with the vehicle headlight 1.
  • the detection device 20 can identify whether the other vehicle is a preceding vehicle or an oncoming vehicle based on the color of a pair of light spots to be detected, for example, as will be described later. Further, the detection device 20 can detect whether or not another vehicle is scheduled to turn to the right or left side when viewed from the vehicle 100. Further, the detection device 20 can detect whether or not the other vehicle is turning to the right or left side when viewed from the vehicle 100.
  • the detection device 20 may include, for example, a camera, a detection unit, or the like (not shown).
  • the camera is attached to the front part of the vehicle 100 and photographs the front of the vehicle 100 at predetermined time intervals, for example, 1/30 second intervals.
  • the camera may be, for example, a CCD (Charged coupled device) camera.
  • the captured image captured by the camera includes at least a part of a region irradiated with light emitted from the pair of light emitting units 10.
  • the detection unit can detect the presence of the other vehicle and the position of the other vehicle with respect to the vehicle 100 based on the captured image taken by the camera, and whether the other vehicle is a preceding vehicle or an oncoming vehicle. Can be identified.
  • the detection unit can detect whether or not the other vehicle is scheduled to turn to the right or left side when viewed from the vehicle 100, or whether or not it is turning.
  • the detection unit detects the presence of the oncoming vehicle and the position of the oncoming vehicle with respect to the vehicle 100 based on the light emitted from the headlight of the oncoming vehicle. Specifically, when the detection unit has a pair of white light spots having a brightness higher than a predetermined brightness located at a predetermined interval in the left-right direction in the captured image, an oncoming vehicle exists. A signal indicating that the operation is to be performed is output to the determination unit 25. In this case, the detection unit calculates, for example, the distance from the vehicle 100 to the oncoming vehicle based on the positions of the pair of white light spots in the captured image, the distance between the pair of white light spots, and the like.
  • the detection unit determines a signal indicating the position of a pair of white light spots in the captured image as information on the position of the oncoming vehicle with respect to the vehicle 100, and a signal indicating the calculated distance from the vehicle 100 to the oncoming vehicle. Output to 25. Further, when the detection unit has at least one orange light spot having a brightness higher than a predetermined brightness on the right side of the center between the pair of light spots in the captured image, the detection unit of the oncoming vehicle A signal indicating that the right turn lamp is blinking is output to the determination unit 25.
  • the signal indicating that the right turn lamp is blinking is a signal indicating that another vehicle is scheduled to turn to the left when viewed from the vehicle 100, and the turning direction side indicated by the turning notice of the other vehicle is on the left side. It is a signal indicating that. Further, the detection unit determines that at least one orange light spot having a brightness higher than the predetermined brightness blinks at a predetermined time interval on the left side of the center between the pair of light spots in the captured image. In this case, a signal indicating that the left turn lamp of the oncoming vehicle is blinking is output to the determination unit 25.
  • the signal indicating that the left turn lamp of the oncoming vehicle is blinking is a signal indicating that the other vehicle is scheduled to turn to the right when viewed from the vehicle 100, and the turning direction side of the other vehicle is on the right side. It is a signal indicating.
  • the detection unit compares the first captured image and the last captured image among the plurality of captured images captured within a predetermined time with the captured image captured later in the captured image.
  • the position of the pair of white light spots in the left-right direction is shifted to the left or right side by a predetermined length or more with respect to the position of the pair of white light spots in the left-right direction in the previously captured image. If so, it is determined that the oncoming vehicle is turning to the left or right.
  • the detection unit outputs a signal indicating that the oncoming vehicle is turning to the determination unit 25. For example, when the oncoming vehicle is turning to the left, the oncoming vehicle is turning to the right when viewed from the vehicle 100, which is the own vehicle.
  • the position of the pair of light spots imaged by the vehicle 100 shifts to the right from the position of the pair of light spots imaged earliest within a predetermined time. Therefore, when the deviation of the pair of light spots to the right in the two contrasting captured images is longer than a predetermined length, the detection unit outputs a signal indicating a left turn of the oncoming vehicle to the determination unit 25. do.
  • the signal indicating a left turn of the oncoming vehicle is a signal indicating that the oncoming vehicle is turning to the right when viewed from the vehicle 100, and is a signal indicating that the oncoming vehicle is on the right side in the turning direction.
  • the detection unit detects the presence of the preceding vehicle and the position of the preceding vehicle with respect to the vehicle 100 based on the light emitted from the taillight of the preceding vehicle. Specifically, the detection unit has a preceding vehicle when the captured image has a pair of red-based light spots having a brightness higher than a predetermined brightness located at a predetermined interval in the left-right direction. Is output to the determination unit 25. In this case, the detection unit calculates, for example, the distance from the vehicle 100 to the preceding vehicle based on the positions of the pair of red light spots, the distance between the pair of red light spots, and the like.
  • the detection unit 25 determines a signal indicating the position of a pair of red light spots in the captured image as information on the position of the preceding vehicle with respect to the vehicle 100, and a signal indicating the calculated distance from the vehicle 100 to the preceding vehicle. Output to. Further, the detection unit determines that at least one orange light spot having a brightness higher than the predetermined brightness blinks at a predetermined time interval on the right side of the center between the pair of light spots in the captured image. In this case, a signal indicating that the right turn lamp of the preceding vehicle is blinking is output to the determination unit 25.
  • the signal indicating that the right turn lamp of the preceding vehicle is blinking is a signal indicating that the other vehicle is scheduled to turn to the right when viewed from the vehicle 100, and the turning direction side indicated by the turning notice of the other vehicle is It is a signal indicating that it is on the right side. Further, when the detection unit determines that at least one orange light spot having a brightness higher than the predetermined brightness blinks on the left side of the center between the pair of light spots at a predetermined time interval, the detection unit determines. A signal indicating that the left turn lamp of the preceding vehicle is blinking is output to the determination unit 25.
  • the signal indicating that the left turn lamp of the preceding vehicle is blinking is a signal indicating that the other vehicle is scheduled to turn to the left when viewed from the vehicle 100, and the turning direction side indicated by the turning notice of the other vehicle is It is a signal indicating that it is on the left side.
  • the detection unit compares the first captured image and the last captured image among the plurality of captured images captured within a predetermined time with the captured image captured later in the captured image.
  • the position of the pair of red light spots in the left-right direction is shifted to the left or right side by a predetermined length or more with respect to the position of the pair of red light spots in the left-right direction in the previously captured image.
  • a signal indicating that the preceding vehicle is turning is output to the determination unit 25. For example, when the preceding vehicle is turning to the right, the preceding vehicle is turning to the right when viewed from the vehicle 100 which is the own vehicle.
  • the position of the pair of light spots imaged by the vehicle 100 shifts to the right from the position of the pair of light spots imaged earliest within a predetermined time. Therefore, when the deviation of the pair of light spots to the right in the two contrasting captured images is equal to or longer than a predetermined length, the detection unit sends a signal indicating that the preceding vehicle is turning to the right. Output to the determination unit 25.
  • the signal indicating that the preceding vehicle is turning to the right is a signal indicating that the preceding vehicle is turning to the right when viewed from the vehicle 100, and is a signal indicating that the turning direction side of the preceding vehicle is on the right side. Is.
  • the predetermined time interval of the above-mentioned turn lamp is a time interval stipulated by law, and is a time interval of about 0.5 second to about 1.0 second. For example, this time interval may be 0.67 seconds.
  • the detection unit does not output a signal when the captured image does not have a pair of light spots having a brightness higher than a predetermined brightness located at a predetermined interval in the left-right direction.
  • the same configuration as that of the control unit CO can be mentioned.
  • the method of identifying the above and the method of identifying whether or not another vehicle is turning are not particularly limited.
  • the detection device 20 performs image processing on the captured image captured by the camera, and based on the information obtained by this image processing, the captured image captured by the camera is subjected to the above-mentioned pair of light spots and the light of the turn lamp. You may judge whether there is a point or not.
  • the detection device 20 further includes a millimeter-wave radar, a rider, and the like capable of detecting an object located in front of the vehicle 100, and receives an image captured by the camera and a signal input from the millimeter-wave radar, the rider, and the like. Based on this, the presence of another vehicle located in front of the vehicle 100, the position of the other vehicle with respect to the vehicle 100 may be detected, and whether the detected other vehicle is a preceding vehicle or an oncoming vehicle may be identified.
  • a millimeter-wave radar a rider, and the like capable of detecting an object located in front of the vehicle 100, and receives an image captured by the camera and a signal input from the millimeter-wave radar, the rider, and the like. Based on this, the presence of another vehicle located in front of the vehicle 100, the position of the other vehicle with respect to the vehicle 100 may be detected, and whether the detected other vehicle is a preceding vehicle or an oncoming vehicle may be identified.
  • FIG. 4 is a diagram showing an example of a control flowchart of the control unit CO in the present embodiment. As shown in FIG. 4, the control flow of the present embodiment includes steps SP11 to SP19.
  • Step SP11 the control unit CO determines whether or not a signal indicating the emission of light is input from the light switch 35.
  • the control unit CO advances the control flow to step SP12.
  • the control unit CO advances the control flow to step SP19. Therefore, the determination of the control unit CO can be understood as changing the next step by classifying the cases according to the signal input in this way.
  • Step SP12 the control unit CO determines whether or not the other vehicle detected by the detection device 20 is in a state of satisfying a predetermined requirement based on the signal input from the determination unit 25.
  • the determination unit 25 is the other vehicle.
  • a signal indicating the preceding vehicle is generated as a signal indicating the above-mentioned signal, and the signal is output to the control unit CO.
  • the determination unit 25 when the other vehicle satisfies a predetermined requirement and a signal indicating that the other vehicle is an oncoming vehicle is input from the detection device 20, the determination unit 25 generates a signal indicating the oncoming vehicle as a signal indicating the other vehicle. , The signal is output to the control unit CO. Therefore, the control unit CO advances the control flow to step SP14 when a signal indicating another vehicle is input. In this step, a signal indicating the position of a pair of light spots in the captured image as information on the distance from the vehicle 100 to the other vehicle and the position of the other vehicle with respect to the vehicle 100 is also input to the control unit CO.
  • control unit CO determines whether the control unit CO is input a signal indicating another vehicle. If the control unit CO does not input a signal indicating another vehicle, the control unit CO advances the control flow to step SP13. If the detection device 20 does not detect another vehicle, the detection device 20 does not input a signal to the determination unit 25, and the determination unit 25 does not output a signal to the control unit CO. Therefore, even in such a case, the control flow proceeds to step SP13.
  • the determination unit 25 makes a first determination as to whether or not the other vehicle is in a state of satisfying a predetermined requirement based on the information from the detection device 20, and in the first determination, the other vehicle determines.
  • the control unit CO advances the control flow to step SP14, and when it is determined in the first determination that the other vehicle does not satisfy the predetermined requirement, the control unit CO CO advances the control flow to step SP13.
  • Step SP13 the control unit CO controls the light emitting unit 10 so that the high beam is emitted from the vehicle headlight 1.
  • the control unit CO refers to the information stored in the memory ME and outputs a signal based on the power supplied to each light emitting element 13 in the high beam light distribution pattern to the power supply circuit 30.
  • the driver of the power supply circuit 30 adjusts the electric power supplied to each light emitting element 13 so as to generate light that becomes a high beam light distribution pattern, and the high beam light distribution pattern from the vehicle headlight 1 is obtained. Light is emitted.
  • the control unit CO returns the control flow to step SP11.
  • FIG. 5 is a diagram showing a high beam light distribution pattern.
  • S indicates a horizontal line
  • V indicates a vertical straight line passing through the center of the vehicle 100 in the left-right direction
  • a high beam light distribution pattern PH formed on a virtual vertical screen arranged 25 m ahead of the vehicle 100. Shown by a thick line.
  • the oncoming lane OL or the overtaking lane OL is located on the right side of the traveling lane DL of the vehicle 100, and the vehicle 100 is traveling on the left side.
  • the hot zone which is the region where the light intensity is the highest in the high beam light distribution pattern PH, is located on or near the intersection of the horizontal line S and the vertical line V.
  • the light intensity in the high beam light distribution pattern PH becomes lower as the distance from this hot zone increases toward the outside.
  • the dimming regions 210 and 310 which will be described later, are shown by dotted lines.
  • Step SP14 the control unit CO controls the light emitting unit 10 so that the light distribution pattern of the light emitted from the vehicle headlight 1 becomes a light distribution pattern corresponding to another vehicle detected by the detection device 20. ..
  • the control unit CO refers to a table stored in the memory ME based on a signal indicating another vehicle, a distance from the vehicle 100 to another vehicle, and a signal indicating the position of a pair of light spots in the captured image. do.
  • the control unit CO outputs a signal based on the electric power supplied to each light emitting element 13 in the light distribution pattern corresponding to the information about the other vehicle to the power supply circuit 30.
  • the driver of the power supply circuit 30 adjusts the electric power supplied to each light emitting element 13 so that the light of the light distribution pattern corresponding to the information about the other vehicle is generated, and the distribution is adjusted from the vehicle headlight 1. Light that becomes an optical pattern is emitted. Then, the control unit CO advances the control flow to step SP15.
  • FIG. 6 is a diagram showing an example of a light distribution pattern of light emitted when a preceding vehicle is detected by the detection device 20.
  • S indicates a horizontal line
  • V indicates a vertical line passing through the center of the vehicle 100 in the left-right direction
  • the light distribution pattern 200 formed on the virtual vertical screen arranged 25 m ahead of the vehicle 100 is a thick line.
  • the lane DL shown in FIG. 6 is a traveling lane
  • the lane OL is an overtaking lane.
  • the shape of the light distribution pattern 200 is the same as the shape of the high beam light distribution pattern PH shown in FIG. 5, but the dimming region 210 is formed in a part of the light distribution pattern.
  • the total luminous flux amount of the light from the light emitting unit 10 irradiated to the dimming region 210 is the total luminous flux amount of the light emitted from the light emitting unit 10 irradiated to the region corresponding to the dimming region 210 in the high beam light distribution pattern PH. Fewer.
  • the intensity of light in the dimming region 210 is lower than a predetermined reference intensity. In the present embodiment, the intensity of light in the dimming region 210 is substantially constant.
  • the dimming region 210 may be a region that is not irradiated with light. Therefore, the dimming region 210 is a region in which the total luminous flux amount of the light from the light emitting unit 10 is reduced as compared with before the signal indicating another vehicle is input.
  • the light intensity distribution in the region other than the dimming region 210 in the light distribution pattern 200 is substantially the same as the light intensity distribution in the region other than the region corresponding to the dimming region 210 in the light distribution pattern PH. Therefore, the region other than the dimming region 210 in the light distribution pattern 200 is a region in which the total luminous flux amount of the light from the light emitting unit 10 is not reduced, and is brighter than the dimming region 210.
  • FIG. 7 is an enlarged view of the dimming region 210 and its vicinity in the light distribution pattern 200.
  • the dimming region 210 crosses a part of the preceding vehicle 80 in the left-right direction and overlaps the portion of the preceding vehicle 80 above the taillight 81.
  • the dimming region 210 of the present embodiment has a first region 211 and a second region 212.
  • the boundary between the first region 211 and the second region 212 is shown by a dotted line, and a pair of red light spots reflected in the captured image by the light from the taillight 81 are shown in black. There is.
  • the second region 212 is an region that crosses the preceding vehicle 80 below the first region 211 and is connected to the lower edge 211U of the first region 211.
  • the second region 212 extends in a strip shape in the left-right direction, and is located at the lowermost position of the dimming region 210.
  • the lower edge 212U of the second region 212 extends substantially linearly in the left-right direction.
  • the left edge 212L of the second region 212 is located on the right side of the left edge 211L of the first region 211, and is located between the left edge 211L of the first region and the preceding vehicle 80.
  • the right edge 212R of the second region 212 is located on the left side of the right edge 211R of the first region 211, and is located between the right edge 211R of the first region 211 and the preceding vehicle 80. ing. Therefore, the width of the second region 212 in the left-right direction is smaller than the width of the first region 211 in the left-right direction. Further, in the present embodiment, the width in the left-right direction from the left edge 211L of the first region 211 to the preceding vehicle 80 is smaller than the width in the left-right direction from the right edge 211R of the first region 211 to the preceding vehicle 80.
  • the width in the left-right direction from the left edge 211L of the first region 211 to the preceding vehicle 80 may be the same as the width in the left-right direction from the right edge 211R of the first region 211 to the preceding vehicle 80. It may be large.
  • the width of the first region 211 and the width of the second region 212 change according to the distance from the vehicle 100 to the preceding vehicle 80, and the farther the distance from the vehicle 100 to the preceding vehicle 80, the wider these widths. It becomes smaller. Further, the positions of the first region 211 and the second region 212 change integrally according to the position of the preceding vehicle 80 with respect to the vehicle 100.
  • a table stored in the memory ME is configured so that such a light distribution pattern 200 is formed.
  • the positions of the side mirror 82 and the rear window 83, in which the driver visually recognizes the rear, differ depending on the type of vehicle.
  • the side mirror 82 and the rear window 83 which are the visual recognition parts, are located in an area above the taillight 81 of the preceding vehicle 80, and are vertically located between the taillight 81 and the visual recognition part for visually recognizing the rear.
  • a gap is formed in the direction.
  • the detection device 20 can detect the position of the taillight 81 of the preceding vehicle 80. Therefore, even if the visible portion for visually recognizing the rear of the preceding vehicle 80 is not detected, the information regarding the electric power supplied to each light emitting element 13 for forming the light distribution pattern 200 having the dimming region 210 is preceded.
  • the light distribution pattern 200 as described above can be formed by storing the light distribution pattern 200 in the memory ME in advance according to the position of the taillight 81 of the car 80.
  • FIG. 8 is a diagram showing an example of a light distribution pattern of light emitted when an oncoming vehicle is detected by the detection device 20.
  • S indicates a horizontal line
  • V indicates a vertical line passing through the center of the vehicle 100 in the left-right direction
  • the light distribution pattern 300 formed on the virtual vertical screen arranged 25 m ahead of the vehicle 100 is a thick line.
  • the lane OL shown in FIG. 8 is an oncoming lane, and another road AL extending substantially perpendicular to the oncoming lane OL is connected to the oncoming lane OL. Therefore, the oncoming vehicle 90 traveling in the oncoming lane OL can turn left and travel on the road AL. When the oncoming vehicle 90 turns left, it is recognized that the oncoming vehicle 90 is turning to the right when viewed from the vehicle 100.
  • the shape of the light distribution pattern 300 is the same as the shape of the high beam light distribution pattern PH shown in FIG. 5, but the dimming region 310 is formed in a part of the light distribution pattern.
  • the total luminous flux amount of the light from the light emitting unit 10 irradiated to the dimming region 310 is the total luminous flux amount of the light emitted from the light emitting unit 10 irradiated to the region corresponding to the dimming region 310 in the high beam light distribution pattern PH. Fewer.
  • the intensity of light in the dimming region 310 is lower than a predetermined reference intensity. In this embodiment, the intensity of light in the dimmed region is substantially constant.
  • the dimming region 310 may be a region that is not irradiated with light. Therefore, the dimming region 310 is a region in which the total luminous flux amount of the light from the light emitting unit 10 is reduced as compared with before the signal indicating another vehicle is input.
  • the light intensity distribution in the region other than the dimming region 310 of the light distribution pattern 300 is substantially the same as the light intensity distribution in the region other than the region corresponding to the dimming region 310 in the light distribution pattern PH. Therefore, the region other than the dimming region 310 in the light distribution pattern 300 is a region in which the total luminous flux amount of the light from the light emitting unit 10 is not reduced, and is brighter than the dimming region 210.
  • FIG. 9 is an enlarged view of the dimming region 310 and its vicinity in the light distribution pattern 300.
  • the dimming region 310 crosses a part of the oncoming vehicle 90 detected by the detection device 20 in the left-right direction, and the portion of the oncoming vehicle 90 above the headlight 91. It overlaps with.
  • the dimming region 310 of the present embodiment has a first region 311 and a second region 312.
  • the boundary between the first region 311 and the second region 312 is shown by a dotted line, and a pair of white light spots reflected in the captured image by the light from the headlight 91 are shown by hatching. ing.
  • the first region 311 is an region that crosses the oncoming vehicle 90 above the second region 312 and overlaps the entire front window 93 of the oncoming vehicle 90.
  • the front window 93 is a visual recognition unit for the driver of the oncoming vehicle 90 to visually recognize the front outside the vehicle.
  • the lower edge 311U of the first region 311 extends substantially linearly in the left-right direction.
  • the second region 312 is an region that crosses the oncoming vehicle 90 below the first region 311 and is connected to the lower side of the first region 311.
  • the second region 312 extends in a strip shape in the left-right direction, and is located at the lowermost position of the dimming region 310.
  • the lower edge 312U of the second region 312 extends substantially linearly in the left-right direction.
  • the left edge 312L of the second region 312 is located closer to the oncoming vehicle 90 than the left edge 311L of the first region 311 and the right edge 312R of the second region 312 is from the right edge 311R of the first region 311. Is also located on the side of the oncoming vehicle 90.
  • the width of the second region 312 in the left-right direction is smaller than the width of the first region 311 in the left-right direction.
  • the width in the left-right direction from the right edge 311R of the first region 311 to the oncoming vehicle 90 is larger than the width from the left edge 311L of the first region 311 to the oncoming vehicle 90.
  • the width in the left-right direction from the edge 311R on the right side of the first region 311 to the oncoming vehicle 90 may be the same as or smaller than the width from the left edge 311L of the first region 311 to the oncoming vehicle 90. ..
  • the width of the first region 311 and the width of the second region 312 change according to the distance from the vehicle 100 to the oncoming vehicle 90 detected by the detection device 20, and the distance from the vehicle 100 to the oncoming vehicle 90. The farther they are, the smaller these widths are. Further, the positions of the first region 211 and the second region 212 change integrally and their widths change according to the direction of the oncoming vehicle 90 with respect to the vehicle 100. In the present embodiment, a table stored in the memory ME is configured so that such a light distribution pattern 300 is formed. The shorter the distance from the vehicle 100 to the oncoming vehicle 90, the larger the width from the right edge 311R of the first region 311 to the oncoming vehicle 90 may be.
  • the position of the front window 93, in which the driver visually recognizes the front differs depending on the type of vehicle.
  • the front window 93 which is a visual recognition unit, is located in an area above the headlight 91 of the oncoming vehicle 90, and is vertically located between the headlight 91 and the visual recognition unit for visually recognizing the front.
  • a gap is formed in the direction.
  • the detection device 20 can detect the position of the headlight 91 of the oncoming vehicle 90. Therefore, even if the visible portion for visually recognizing the front of the oncoming vehicle 90 is not detected, the oncoming vehicle can provide information on the power supplied to each light emitting element 13 in order to form the light distribution pattern 200 having the dimming region 310.
  • the light distribution pattern 300 as described above can be formed by storing the light distribution pattern 300 in the memory ME in advance according to the position of the headlight 91 of the 90.
  • the region including the first regions 211 and 311 of the light distribution pattern that overlaps with all of the visibility units for the driver of the other vehicle to visually recognize the outside of the vehicle is the other vehicle.
  • the light emitting unit 10 is controlled so as to be in the dimming regions 210 and 310 in which the total luminous flux amount of the light from the light emitting unit 10 is reduced as compared with before the signal shown is input.
  • step SP15 and step SP16 for changing the light distribution pattern according to the turning notice of another vehicle will be described.
  • steps SP15 and SP16 will be described by taking the case where another vehicle is the preceding vehicle as an example.
  • Step SP15 This step is a step of determining whether or not another vehicle has issued a turning notice.
  • FIG. 10 is a diagram showing how the right turn lamp of the preceding vehicle 80 blinks from the same viewpoint as in FIG. 7.
  • the preceding vehicle 80 blinks the right turn lamp 84R in order to move to the overtaking lane OL.
  • the driver of the preceding vehicle 80 blinks the right turn lamp 84R and issues a turning notice to the driver of the vehicle 100 or the like that the preceding vehicle 80 turns to the right.
  • the light emitted from the right turn lamp 84R One orange light spot is projected at predetermined time intervals. In FIG.
  • the detection unit of the detection device 20 outputs a signal indicating the blinking of the right turn lamp 84R of the preceding vehicle 80 to the determination unit 25.
  • this signal is a signal indicating that the preceding vehicle 80 is scheduled to turn to the right when viewed from the vehicle 100.
  • a signal indicating the preceding vehicle is input to the determination unit 25.
  • the determination unit 25 determines that the right turn lamp of the preceding vehicle 80 is blinking, and outputs a signal indicating the blinking of the right turn lamp of the preceding vehicle 80 to the control unit CO.
  • This signal is a signal indicating that the turning direction side of the preceding vehicle 80 is on the right side when viewed from the vehicle 100.
  • the control unit CO further inputs a signal indicating the turning notice of the other vehicle in addition to the signal indicating the other vehicle, the control unit CO advances the control flow to step SP16.
  • control unit CO advances the control flow to step SP17.
  • Step SP16 This step is a step of emitting light that forms a light distribution pattern according to the turning notice.
  • FIG. 11 is a diagram showing a state in which the light distribution pattern shown in FIG. 7 has changed from the same viewpoint as in FIG.
  • the light distribution pattern 200A shown in FIG. 11 is a light distribution pattern stored in the memory ME as one of the light distribution patterns corresponding to the turning notice, and the first region 211 of the dimming region 210 shown in FIG. 7 is
  • the determination unit 25 includes a first region 211A that is wider to the right than before the determination in step 15.
  • the second region 212 of the light distribution pattern 200A shown in FIG. 11 is the same as the second region 212 of the light distribution pattern 200 shown in FIG. 7.
  • the control unit CO refers to the table stored in the memory ME and outputs a control signal for forming the light distribution pattern 200 to the power supply circuit 30. do. Then, a predetermined electric power is supplied to each light emitting element 13 by the operation of the driver based on the control. As a result, the light forming the light distribution pattern 200A is generated in the light emitting unit 10, and the light having the light distribution pattern 200A is emitted from the vehicle headlight 1. In this way, the first region 211 in the dimming region 210 is the vehicle after the signal indicating the other vehicle is input to the control unit CO and before the signal indicating the turning notice of the other vehicle is input to the control unit CO.
  • the control unit CO returns the control flow to step SP11 without performing steps SP17 and 18 described later.
  • steps SP15 and 16 the example in which the preceding vehicle 80 is scheduled to turn to the right has been described, but when the preceding vehicle 80 is scheduled to turn to the left, the preceding vehicle 80 is viewed from the vehicle 100.
  • the light distribution pattern is changed so that the first region 211 spreads toward the left side of the visible portion of the above.
  • steps SP15 and SP16 will be described by taking the case where another vehicle is an oncoming vehicle as an example.
  • FIG. 12 is a view showing how the right turn lamp of the oncoming vehicle 90 blinks from the same viewpoint as in FIG.
  • the oncoming vehicle 90 which is another vehicle, blinks the left turn lamps 94L and 95L in order to turn left on the road AL.
  • the left turn lamp 94L is provided on a part of the left headlight 91 of the oncoming vehicle 90
  • the left turn lamp 95L is provided on the cover of the left side mirror of the oncoming vehicle 90. ..
  • the left turn lamps 94L and 95L blink in synchronization.
  • the driver of the oncoming vehicle 90 blinks the left turn lamps 94L and 95L, and issues a turning notice to the driver of the vehicle 100 and the like that the oncoming vehicle 90 turns to the left.
  • the oncoming vehicle 90 is scheduled to turn to the right.
  • the left turn lamps 94L and 95L Two orange-based light spots due to the light emitted from the camera are projected at predetermined time intervals. In FIG. 12, white light spots are indicated by hatching, and orange light spots are indicated by black coating.
  • the detection unit of the detection device 20 outputs a signal indicating the blinking of the left turn lamp of the oncoming vehicle 90 to the determination unit 25.
  • this signal is a signal indicating that the oncoming vehicle 90 is scheduled to turn to the right when viewed from the vehicle 100.
  • a signal that the other vehicle is an oncoming vehicle and a signal that the oncoming vehicle is in a state of satisfying a predetermined requirement are input to the determination unit 25.
  • the determination unit 25 determines that the left turn lamp of the oncoming vehicle 90 is blinking, and outputs a signal indicating that the left turn lamp of the oncoming vehicle 90 is lit as a signal indicating a turning notice of another vehicle to the control unit CO. do.
  • This signal is a signal indicating that the turning direction side of the oncoming vehicle 90 is on the right side when viewed from the vehicle 100.
  • the control unit CO advances the control flow to step SP16.
  • control unit CO advances the control flow to step SP17.
  • FIG. 13 is a diagram showing a state in which the light distribution pattern shown in FIG. 9 has changed from the same viewpoint as in FIG.
  • the light distribution pattern 300A shown in FIG. 13 is a light distribution pattern stored in the memory ME as one of the light distribution patterns corresponding to the turning notice, and the first region 311 of the dimming region 310 shown in FIG. 9 is on the right side. It contains a first region 311A that extends to.
  • the second region 312 of the light distribution pattern 300 shown in FIG. 13 is the same as the second region 312 of the light distribution pattern 300 shown in FIG.
  • the control unit CO refers to the table stored in the memory ME and outputs a control signal for forming the light distribution pattern 300A to the power supply circuit 30. do.
  • a predetermined electric power is supplied to each light emitting element 13 by the operation of the driver based on the control signal.
  • the light forming the light distribution pattern 300A is generated in the light emitting unit 10, and the light having the light distribution pattern 300A is emitted from the vehicle headlight 1.
  • the first region 311 in the dimming region 310 is the vehicle after the signal indicating the other vehicle is input to the control unit CO and before the signal indicating the turning notice of the other vehicle is input to the control unit CO.
  • the control unit CO When viewed from 100, it spreads toward the right side of the visible portion of the oncoming vehicle 90. In this case, the right side of the visible portion of the oncoming vehicle 90 when viewed from the vehicle 100 corresponds to the turning direction side indicated by the turning notice. Then, the control unit CO returns the control flow to step SP11 without performing steps SP17 and 18 described later.
  • steps SP15 and 16 the example in which the oncoming vehicle 90 is scheduled to turn to the right when viewed from the vehicle 100 has been described, but when the oncoming vehicle 90 is scheduled to turn to the left when viewed from the vehicle 100,
  • the light distribution pattern is changed so that the first region 311 expands toward the left side of the visible portion of the oncoming vehicle 90 when viewed from the vehicle 100.
  • the control unit CO indicates the turning notice of the other vehicle after the signals indicating the other vehicle are input to the first regions 211 and 311 of the dimming regions 210 and 310.
  • the light emitting unit 10 is controlled so that the light emitting unit 10 spreads toward the turning direction side as compared with before the signal is input.
  • steps SP17 and step SP18 for changing the light distribution pattern according to the turning of another vehicle will be described.
  • steps SP17 and 18 will be described by taking the case where another vehicle is the preceding vehicle as an example.
  • Step SP17 This step is a step of determining whether or not another vehicle is turning.
  • FIG. 14 is a diagram showing how the preceding vehicle 80 has started turning to the right when viewed from the vehicle 100, from the same viewpoint as in FIG. 7.
  • step SP15 the determination unit 25 does not determine that the preceding vehicle 80 has issued a turn notice. Therefore, this step is executed. As shown in FIG. 14, immediately after the preceding vehicle 80 starts turning to the right, the light of the above-mentioned light distribution pattern 200 is emitted toward the preceding vehicle 80.
  • FIG. 15 schematically shows a pair of red light spots in a captured image captured when a predetermined time has elapsed from the state of FIG. 14, together with a light distribution pattern 200.
  • the taillight 81 in the state of FIG. 14 is shown by a broken line. As shown in FIG.
  • the determination unit 25 determines that the preceding vehicle 80 is turning to the right. Then, the determination unit 25 inputs a signal indicating a right turn of the preceding vehicle 80 to the control unit CO. This signal is a signal indicating that the turning direction of the preceding vehicle 80 is on the right side when viewed from the vehicle 100. When this signal is input, the control unit CO advances the control flow to step SP18.
  • control unit CO returns the control flow to step SP11.
  • Step SP18 This step is a step of emitting a light distribution pattern according to the turning of another vehicle.
  • FIG. 16 is a diagram showing a state in which the light distribution pattern shown in FIG. 14 has changed from the same viewpoint as in FIG. 7.
  • the right edge 211R in the first region 211 of the light distribution pattern 200 before the change is shown by a broken line.
  • the light distribution pattern before the change corresponds to the light distribution pattern immediately before step SP17.
  • the light distribution pattern 200B shown in FIG. 16 is a light distribution pattern stored in the memory ME as one of the light distribution patterns corresponding to the turning, and the first region 211 in the dimming region 210 shown in FIG. 7 is determined.
  • the unit 25 includes the first region 211B that has expanded to the right side as compared with before the determination of step SP17.
  • the second region 212 of the light distribution pattern 200B is the same as the second region 212 of the light distribution pattern 200 shown in FIG. 7, and has not changed from the state of step SP14.
  • the control unit CO refers to the table stored in the memory ME and outputs a control signal for forming the light distribution pattern 200B to the power supply circuit 30. Then, a predetermined electric power is supplied to each light emitting element 13 by the operation of the driver based on the control signal. As a result, the light forming the light distribution pattern 200B is generated in the light emitting unit 10, and the light having the light distribution pattern 200B is emitted from the vehicle headlight 1. In this way, the first region 211 in the dimming region 210 expands toward the right side of the visible portion of the preceding vehicle 80 when viewed from the vehicle 100 by the length d2 as compared with before the determination unit 25 determines the step SP17. In the present embodiment, this length d2 is a length larger than the above-mentioned predetermined length d1.
  • control unit CO returns the control flow to step SP11.
  • steps SP17 and 18 will be described by taking the case where another vehicle is an oncoming vehicle as an example.
  • Step SP17 For example, consider a case where an oncoming vehicle 90, which is another vehicle, turns to the left when viewed from the vehicle 100.
  • FIG. 17 is a diagram showing a state in which the oncoming vehicle 90 is traveling in the oncoming lane OL that curves to the left when viewed from the vehicle 100 from the same viewpoint as in FIG. That is, in the state of FIG. 17, the oncoming vehicle 90 is turning to the right when viewed from the oncoming vehicle 90.
  • the turn lamp is not blinked. Therefore, the oncoming vehicle 90 does not blink the turn lamp, and in step SP15, the determination unit 25 does not determine that the preceding vehicle 80 has issued a turn notice. Therefore, this step is executed.
  • the light of the above-mentioned light distribution pattern 300 is emitted in the state of FIG.
  • FIG. 17 schematically shows a pair of white light spots in a captured image captured when a predetermined time has elapsed from the state of FIG. 17, together with a light distribution pattern 300.
  • the headlight 91 in the state of FIG. 17 is shown by a broken line. As shown in FIG.
  • the pair of white light spots are shifted to the left.
  • the determination unit 25 determines that the oncoming vehicle 90 is turning to the right. Then, the determination unit 25 inputs a signal indicating a right turn of the oncoming vehicle 90 to the control unit CO.
  • This signal is a signal indicating that the turning direction of the oncoming vehicle 90 is on the left side when viewed from the vehicle 100.
  • the control unit CO advances the control flow to step SP18.
  • control unit CO returns the control flow to step SP11.
  • FIG. 19 is a diagram showing a state in which the light distribution pattern shown in FIG. 17 has changed from the same viewpoint as in FIG.
  • the left edge 311L in the first region 311 of the light distribution pattern 300 before the change is shown by a broken line.
  • the light distribution pattern before the change corresponds to the light distribution pattern immediately before step SP17.
  • the light distribution pattern 300B shown in FIG. 19 is a light distribution pattern stored in the memory ME as one of the light distribution patterns corresponding to the turning, and the first region 311 of the dimming region 310 shown in FIG. 9 is determined.
  • the unit 25 includes a first region 311B that is wider to the left side than before the determination of step SP17.
  • the second region 312 of the light distribution pattern 300B is the same as the second region 312 of the light distribution pattern 300 shown in FIG. 9, and has not changed from the state of step SP14.
  • the control unit CO refers to the table stored in the memory ME and transmits a control signal for forming the light distribution pattern 300B to the power supply circuit 30. Output to. Then, a predetermined electric power is supplied to each light emitting element 13 by the operation of the driver based on the control signal. As a result, the light forming the light distribution pattern 300B is generated in the light emitting unit 10, and the light having the light distribution pattern 300B is emitted from the vehicle headlight 1.
  • the first region 311 in the dimming region 310 expands toward the left side of the visible portion of the oncoming vehicle 90 when viewed from the vehicle 100 by the length d2 as compared with before the determination unit 25 determines the step SP17.
  • the length d2 is set to be larger than the predetermined length d1 described above.
  • control unit CO returns the control flow to step SP11.
  • steps SP17 and 18 the example in which the oncoming vehicle 90 is turning to the right has been described, but when the oncoming vehicle 90 is turning to the left, the right side of the visual recognition portion of the oncoming vehicle 90 is described.
  • the light distribution pattern is changed so that the first region 311 expands toward.
  • step SP17 when the determination unit 25 determines in step SP15 that the other vehicle has not issued a turn notice, in step SP17, the other vehicle turns based on the information from the detection device 20. Further determine whether or not it is done. Then, in step 18, when it is determined that the other vehicle is turning in this step 17, the first regions 211 and 311 of the dimming regions 210 and 310 are on the turning direction side as compared with before this determination.
  • the control unit CO controls the light emitting unit 10 so as to spread.
  • Step SP19 In this step, no signal is input from the light switch 35 to the control unit CO. Therefore, the light switch 35 is in the off state.
  • the control unit CO outputs a predetermined signal to the power supply circuit 30, stops the supply of electric power to the respective light emitting elements 13 to the power supply circuit 30, makes the light from the vehicle headlight 1 non-emission, and controls. The flow is returned to step SP11.
  • the light distribution pattern of the light emitted from the vehicle headlight 1 is changed when the preceding vehicle 80 or the oncoming vehicle 90 blinks the turn lamp to give a turning notice or when the vehicle is turning.
  • at least one of the turning notice and the turning motion of the other vehicle is also referred to as a turning motion.
  • the control flow of the control unit CO is not limited to the control flow shown in FIG.
  • the determination unit 25 may determine whether or not another vehicle is turning in step SP15, and may determine whether or not another vehicle is issuing a turn notice in step SP17.
  • the determination unit 25 determines whether or not another vehicle has issued a turning notice.
  • the determination unit 25 may simultaneously determine whether or not the other vehicle has issued a turning notice and whether or not the other vehicle is turning. good.
  • steps SP15 to 18 can be considered as a control flow for determining whether or not another vehicle is performing a turning motion that is at least one of turning notice and turning.
  • the vehicle headlight system 2 of the present embodiment includes a detection device 20 for detecting other vehicles 80 and 90, and a vehicle headlight 1. Further, the vehicle headlight 1 determines information from the light emitting unit 10 and the detection device 20 that emit light having a light distribution pattern that can be changed toward other vehicles 80 and 90 located in front of the vehicle 100.
  • a determination unit 25 for generating a signal indicating the other vehicles 80 and 90 and a signal indicating the turning operation of the other vehicles 80 and 90, and a control unit CO are provided.
  • the control unit CO has a light distribution pattern in which the region including the first regions 211 and 311 that overlap all the visible parts of the other vehicles 80 and 90 is the other vehicle 80.
  • the light emitting unit 10 is controlled so as to be in the dimming regions 210 and 310 in which the total luminous flux amount of the light from the light emitting unit 10 is reduced as compared with before the signal indicating, 90 is input, and the other vehicles 80 and 90 are shown.
  • a signal indicating the turning operation of the other vehicles 80 and 90 is further input in addition to the signal, after the signal indicating the other vehicles 80 and 90 is input to the first regions 211 and 311 of the dimming regions 210 and 310.
  • the light emitting unit 10 is controlled so as to spread toward the turning direction side of the other vehicles 80 and 90 as compared with before the signal indicating the turning operation of the other vehicles 80 and 90 is input.
  • the dimming regions 210 and 310 formed by the vehicle headlight 1 of the present embodiment have second regions 212 and 312 located below the first regions 211 and 311. For this reason, the width of the dimming region in the left-right direction is narrower below the visible portion of the other vehicles 80 and 90, and the ratio of the bright region to the light distribution pattern is large. Therefore, the forward visibility of the vehicle 100, which is the own vehicle, can be improved. Further, the region below the visible portion of the other vehicles 80 and 90 tends not to touch the line of sight of the driver of the other vehicle. Therefore, even if the second regions 212 and 312 are formed in this way, the dazzling of the drivers of the other vehicles 80 and 90 can be suppressed.
  • the vehicle headlight 1 when the other vehicle turns, the dazzling of the driver of the other vehicle can be suppressed and the deterioration of the front visibility of the own vehicle can be suppressed.
  • the dimming regions 210 and 310 of the present embodiment are irradiated with a certain amount of light, the dimming regions 210 and 310 have a certain degree of brightness. Therefore, as compared with the case where the dimming areas 210 and 310 are not irradiated with light, the front visibility of the driver of the own vehicle 100 is improved while suppressing the dazzling of the drivers of the other vehicles 80 and 90. Can be done. On the other hand, when the dimming regions 210 and 310 are not irradiated with light, the dazzling of the drivers of the other vehicles 80 and 90 can be further suppressed.
  • the length d2 at which the dimming region is expanded when it is determined that the other vehicle is turning is the criterion for determining that the other vehicle is turning. It is larger than the length d1 of the deviation of the pair of light spots in the left-right direction.
  • the determination unit 25 of the present embodiment determines the distances to the other vehicles 80 and 90 based on the information from the detection device 20, and controls a signal indicating the other vehicle when the distance is equal to or less than a predetermined distance.
  • Output to CO In general, dazzling to other vehicles is more likely to occur as the distance to other vehicles is shorter. Therefore, by inputting a signal indicating another vehicle to the control unit CO when the distance is less than a predetermined distance, dazzling to the other vehicle can be effectively suppressed. Further, when the distance to another vehicle is larger than a predetermined distance, the dimming areas 210 and 310 do not widen, so that the visibility of the own vehicle can be improved while suppressing the dazzling of the other vehicle.
  • the dimming regions 210 and 310 expand to the turning direction side of the other vehicles 80 and 90.
  • the left edge of the second region is located to the right of the left edge of the first region and the right edge of the second region is located to the left of the right edge of the first region.
  • the entire dimming areas 210 and 310 may be extended to the turning direction side of the other vehicles 80 and 90. In short, at least the first region may be widened to the side where the other vehicles 80 and 90 turn.
  • FIG. 21 is a diagram showing the light distribution pattern in the second embodiment from the same viewpoint as in FIG.
  • FIG. 22 is a diagram showing a state in which the light distribution pattern shown in FIG. 21 has changed.
  • the same or equivalent components as those in the first embodiment are designated by the same reference numerals and duplicated description will be omitted unless otherwise specified.
  • the shape and light intensity distribution of the light distribution pattern 200 in the present embodiment, and the shape and light intensity distribution of the dimming region 210 in the present embodiment are the same as those of the light distribution pattern 200 and the dimming region 210 in the first embodiment. The same is true. However, as shown in FIG. 21, the regions other than the second region 212 in the light distribution pattern 200 of the present embodiment are divided into the first region 211 and the third region 213. In this respect, the light distribution pattern 200 of the present embodiment is different from the light distribution pattern 200 of the first embodiment.
  • the first region 211 and the third region 213 of the present embodiment are separated from each other with reference to a line extending in the left-right direction slightly above the roof panel 87 of the preceding vehicle 80.
  • the line is shown by a broken line in FIG. 21, which corresponds to the upper edge 211J of the first region 211.
  • the first region 211 is an region that overlaps with the entire side mirror 82 and the rear window 83, which are the visual recognition portions of the preceding vehicle 80.
  • the third region 213 is connected to the upper edge 211J of the first region 211 and is located at the uppermost portion of the dimming region 210.
  • the control unit CO of the present embodiment is, for example, after the signal indicating another vehicle is input when it is determined that the preceding vehicle 80 is issuing a turn notice to the right.
  • the first region 211 spreads to the right side on the turning direction side of the preceding vehicle 80, and the right edge on the turning direction side of the third region 213 is the first. 2
  • the light emitting unit 10 is controlled so as not to move from the position before the determination.
  • the light distribution pattern 200A after the change of the present embodiment becomes a light distribution pattern having the first region 211A in which the first region 211 extends to the right side.
  • the third region located above the first region does not spread to the turning direction side, so that the third region is combined with the first region.
  • the proportion of bright areas in the light distribution pattern is larger than when it is widened. Therefore, it is possible to suppress a decrease in the front visibility of the own vehicle. Further, as described above, since the first region extends to the side where the other vehicle issues a turning notice, it is possible to prevent the driver of the other vehicle from being dazzled.
  • the edge on the turning direction side of the third region 213 is the edge on the turning direction side of the first region.
  • the light emitting unit 10 may be controlled so as to be located closer to the other vehicle. Even in this case, the spread of the third region 213 toward the turning direction is suppressed. As a result, the proportion of the bright region in the light distribution pattern is larger than that in the case where the spread of the third region 213 in the turning direction side is equivalent to the spread of the first region 211 and the turning direction side. Therefore, it is possible to suppress a decrease in the front visibility of the own vehicle.
  • the position of the upper edge of the first region in the vertical direction is not particularly limited as long as it does not prevent the first region from overlapping with the entire visual recognition portion of the other vehicle.
  • the position is above the roof panel of another vehicle and below the center of the upper edge of the light distribution pattern and the roof panel.
  • the visible portion of the other vehicle is generally located below the roof panel of the other vehicle. Therefore, if the upper edge of the first region is located above the roof panel, the entire visible portion can more reliably overlap the first region. Further, if the upper edge of the first region is located below the center between the upper edge of the light distribution pattern and the roof panel, it can be suppressed that the area of the third region becomes too small. .. Therefore, when another vehicle issues a turning notice, it is possible to further suppress the unnecessarily expanding of the dimming area, and it is possible to further suppress the deterioration of the front visibility of the own vehicle.
  • the present embodiment can also be applied to the case where another vehicle is turning. That is, the present embodiment can be applied to the case where another vehicle is performing a turning operation that is at least one of a turning notice and a turning.
  • FIG. 23 is a diagram showing a state in which the light distribution pattern in the present embodiment has changed.
  • the same or equivalent components as those in the first embodiment are designated by the same reference numerals and duplicated description will be omitted unless otherwise specified.
  • the preceding vehicle 80 has issued a turn notice to the right.
  • the turning direction side of the preceding vehicle 80 is on the right side when viewed from the own vehicle, and the control unit CO is on the right side of the preceding vehicle 80 as the right edge 211R of the first region 211 of the dimming region 210 goes upward.
  • the light emitting unit 10 is controlled so as to be away from the vertical line Va passing through the end portion of the light emitting unit 10.
  • the first region 211 expands to the turning direction side of the preceding vehicle 80. Therefore, when the preceding vehicle 80 turns, the dazzling of the driver of the preceding vehicle 80 can be suppressed.
  • the dimming region on the turning direction side is changed so as to move away from the vertical line Va as it goes upward, the dimming region is expanded toward the turning direction while the edge is parallel to the vertical line Va.
  • the ratio of the bright region to the changed light distribution pattern can be increased as compared with the above. Therefore, it is possible to further suppress the deterioration of the front visibility of the own vehicle.
  • the control unit CO when the signal indicating the turning notice of the other vehicles 80 and 90 is input, the control unit CO is the other vehicle as the edges of the first regions 211 and 311 on the turning direction side go upward.
  • the light emitting unit 10 is controlled so as to be away from the vertical line passing through the end portion of the 80 and 90 on the turning direction side.
  • FIG. 23 shows an example in which the right edge 211R of the first region 211 is inclined so as to be separated from the vertical line Va as it goes upward, but it is on the turning direction side of the first regions 211 and 311.
  • the edge does not necessarily have to be inclined, and may be stepped, for example, as long as the edge moves upward and away from the vertical line passing through the end of the other vehicles 80, 90 on the turning direction side.
  • the present embodiment can also be applied to the case where another vehicle is turning. That is, the present embodiment can be applied to the case where another vehicle is performing a turning operation that is at least one of a turning notice and a turning.
  • a vehicle headlight that changes the high beam light distribution pattern according to another vehicle detected by the detection device 20 has been described as an example.
  • the vehicle headlight may change the light distribution pattern of the light emitted according to the other vehicle detected by the detection device 20.
  • the vehicle headlight may change the low beam light distribution pattern according to another vehicle detected by the detection device 20.
  • the light emitting unit 10 having the light distribution pattern forming unit 12 which is a so-called LED array has been described as an example.
  • the light emitting unit 10 is not particularly limited as long as the light distribution pattern of the emitted light can be changed.
  • the light emitting unit 10 is configured to form a predetermined light distribution pattern by scanning the light emitted from the light source using a reflector such as a rotating reflector, MEMS (Micro Electro Mechanical Systems), and a galvano mirror. There may be.
  • the light distribution pattern of the emitted light can be changed by adjusting the inclination of the reflector or adjusting the light emitted from the light source.
  • the light emitting unit 10 may be configured to form a predetermined light distribution pattern by diffracting the light emitted from the light source using LCOS (Liquid Crystal On Silicon).
  • LCOS Liquid Crystal On Silicon
  • the light distribution pattern of the emitted light can be changed by adjusting the orientation of the liquid crystal display in the LCOS.
  • the light intensity distribution in the regions other than the dimming regions 210 and 310 of the light distribution patterns 200 and 300 is the region other than the regions corresponding to the dimming regions 210 and 310 of the light distribution pattern PH.
  • the example which is almost the same as the light intensity distribution in is described, it is not limited to this. However, from the viewpoint of suppressing the driver of the vehicle 100 from feeling uncomfortable, it is preferable that the light intensity distribution in the regions other than the dimming regions 210 and 310 does not change.
  • the light intensity in the dimming regions 210 and 310 may change depending on, for example, the distance from the vehicle 100 to another vehicle.
  • the shape of the light distribution pattern described in the above embodiment is an example and can be changed as appropriate.
  • the width of each of the above-mentioned first region, second region, and third region in the left-right direction does not have to be constant along the up-down direction.
  • the detection device 20 detects the preceding vehicle 80 based on the light from the taillight 81 of the preceding vehicle 80, and detects the oncoming vehicle 90 based on the light from the headlight 91 of the oncoming vehicle 90.
  • the configuration of the detection device 20 is not limited to this.
  • the detection device 20 may detect the side mirror 82, the rear window 83, etc., which are the visual recognition parts of the preceding vehicle 80, or the front window 93, which is the visual recognition part of the oncoming vehicle 90.
  • the control unit CO may control the pair of light emitting units 10 based on the information of these visual recognition units detected by the detection device 20.
  • turn notice is not limited to this.
  • communication information between vehicles in the automatic driving mode road information obtained from navigation, road surface drawing drawn by another vehicle, and the like can be mentioned.
  • the present invention is not limited to this. For example, it may be determined whether or not the other vehicle is turning based on the communication information between the vehicles in the automatic driving mode, the road information obtained from the navigation, the movement of the road surface drawing drawn by the other vehicle, and the like.
  • a signal indicating another vehicle is input from the determination unit 25 to the control unit CO.
  • a signal indicating another vehicle may be input from the detection device 20 to the control unit CO.
  • the signal indicating the other vehicle is input to the control unit CO without the determination by the determination unit 25, the signal indicating the turning operation of the other vehicle is input to the control unit CO to reduce the distance to the other vehicle.
  • the first region can be expanded toward the turning direction of another vehicle without depending on the vehicle.
  • a vehicle headlight and a vehicle headlight that can suppress the dazzling of the driver of the other vehicle when the other vehicle turns and can suppress the deterioration of the front visibility of the own vehicle.
  • a vehicle headlight system is provided and can be used in fields such as vehicle headlights for automobiles and the like.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

La présente invention concerne un phare de véhicule (1) qui est pourvu d'une unité d'émission de lumière (10), d'une unité de détermination (25) et d'une unité de commande (CO). Lorsqu'un signal indiquant un autre véhicule est entré, l'unité de commande (CO) commande l'unité d'émission de lumière (10) de telle sorte qu'une zone comprenant une première zone (211, 311) dans un motif de distribution de lumière soit une zone à lumière réduite (210, 310). Lorsqu'un signal indiquant une action de braquage d'un autre véhicule est également entré en plus du signal indiquant l'autre véhicule, l'unité de commande (CO) commande l'unité d'émission de lumière (10) de telle sorte qu'au moins la première zone (211, 311) dans la zone à lumière réduite (210, 310) soit plus large du côté de la direction de braquage de l'autre véhicule (80, 890) par rapport à après que le signal indiquant l'autre véhicule (80, 90) a été entré et avant que le signal indiquant l'action de braquage de l'autre véhicule (80, 90) ne soit entré. La zone à lumière réduite (210, 310) comprend une seconde zone (212, 312) reliée au bord inférieur de la première zone (211, 311).
PCT/JP2021/013246 2020-03-31 2021-03-29 Phare de véhicule et système de phare de véhicule WO2021200804A1 (fr)

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JP2019038279A (ja) * 2017-08-22 2019-03-14 スタンレー電気株式会社 車両用灯具の制御装置、車両用灯具システム

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JP2011255825A (ja) * 2010-06-10 2011-12-22 Koito Mfg Co Ltd 車両用灯具システム、制御装置および車両用灯具
WO2012063365A1 (fr) * 2010-11-12 2012-05-18 トヨタ自動車株式会社 Système de commande de distribution de lumière pour véhicule et procédé de commande de distribution de lumière pour véhicule
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