WO2017163414A1 - Dispositif de commande de distribution de lumière, procédé de commande de distribution de lumière, et programme de commande de distribution de lumière - Google Patents

Dispositif de commande de distribution de lumière, procédé de commande de distribution de lumière, et programme de commande de distribution de lumière Download PDF

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Publication number
WO2017163414A1
WO2017163414A1 PCT/JP2016/059706 JP2016059706W WO2017163414A1 WO 2017163414 A1 WO2017163414 A1 WO 2017163414A1 JP 2016059706 W JP2016059706 W JP 2016059706W WO 2017163414 A1 WO2017163414 A1 WO 2017163414A1
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WO
WIPO (PCT)
Prior art keywords
light distribution
vehicle
area
setting unit
region
Prior art date
Application number
PCT/JP2016/059706
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English (en)
Japanese (ja)
Inventor
竜 村松
博仁 西山
政明 武安
倉橋　正人
佐藤　直人
Original Assignee
三菱電機株式会社
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Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2016/059706 priority Critical patent/WO2017163414A1/fr
Publication of WO2017163414A1 publication Critical patent/WO2017163414A1/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
    • B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
    • B60Q1/08—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically
    • B60Q1/10—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically due to vehicle inclination, e.g. due to load distribution
    • 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 technique for controlling the light distribution of a vehicle headlamp.
  • the driver may travel with a high beam in order to ensure the maximum field of view.
  • driving with a high beam may dazzle the driver of the vehicle ahead, so the driver travels with a low beam.
  • the light distribution of the low beam is downward, the driver's visibility is greatly reduced compared to the case of the high beam, leading to oversight of pedestrians near the road, road signs, and distant road shapes.
  • Patent Document 1 includes means for detecting angle information in the pitch direction and yaw direction of the vehicle.
  • the light distribution area of the headlamp When the light distribution area of the headlamp is controlled to the first predetermined light distribution area, or when the change amount of each angle exceeds the threshold, the light distribution area is set to the first predetermined light distribution.
  • a technique for changing to a second light distribution region different from the region is disclosed.
  • the light distribution region is set to a first predetermined light distribution region (for example, a high beam light distribution).
  • the second predetermined light distribution region (for example, the low beam light distribution region) is controlled from the region or the intermediate light distribution region between the high beam and the low beam.
  • the light distribution area of the headlamp is controlled based on only the angle in the pitch direction and the yaw direction of the vehicle or the amount of change in the angle. Since the vehicle and the preceding vehicle are traveling, the relative positional relationship between the vehicles changes every moment. However, in the technique of Patent Document 1, an effective arrangement according to the relative positional relationship between the vehicles is performed. There is a problem that light control cannot be performed.
  • the main object of the present invention is to solve such problems, and a main object of the present invention is to obtain a configuration capable of performing effective light distribution control according to the relative positional relationship between vehicles. .
  • the light distribution control device includes: A light distribution control device that is mounted on a vehicle and controls light distribution of a headlamp of the vehicle, A glare area setting unit that sets a glare area that may distract the driver of the vehicle ahead of the vehicle when the light distribution is performed, among the space areas in which the light distribution of the headlamp is possible; Light distribution of the headlamp is possible based on at least one of the relative angle in the pitch direction between the vehicle and the preceding vehicle and the relative angle in the yaw direction between the vehicle and the preceding vehicle, and the glare region.
  • a light distribution prohibition region setting unit that sets a light distribution prohibition region in which the light distribution of the headlamp is prohibited.
  • the shape of the light distribution prohibited area is changed based on at least one of the relative angle in the pitch direction between the vehicles and the relative angle in the yaw direction. Accordingly, effective light distribution control can be performed.
  • FIG. 3 is a diagram illustrating an example of a device mounted on the vehicle according to the first embodiment.
  • FIG. 3 is a diagram illustrating a hardware configuration example of a light distribution control device according to the first embodiment.
  • FIG. 3 is a diagram illustrating a functional configuration example of a light distribution control device according to the first embodiment.
  • FIG. 4 is a diagram illustrating an example of a glare area according to the first embodiment.
  • region which concerns on Embodiment 1 is a figure which shows from the side surface direction of a vehicle body.
  • FIG. 6 is a flowchart showing an operation example of a vertical direction setting unit according to the first embodiment.
  • FIG. 6 is a diagram showing a glare region when the relative angle ⁇ ⁇ 0 ° in the yaw direction according to the first embodiment.
  • FIG. 4 is a flowchart showing an operation example of a horizontal direction setting unit according to the first embodiment.
  • FIG. 5 is a flowchart showing an operation example of a light distribution area setting unit according to the first embodiment.
  • FIG. 4 is a flowchart showing an operation example of a light distribution prohibited area conversion unit according to the first embodiment.
  • FIG. *** Explanation of configuration *** FIG. 1 shows an example of an apparatus mounted on a vehicle 100 according to the present embodiment.
  • FIG. 1 shows only the device used for headlamp light distribution control.
  • the vehicle 100 includes a light distribution control device 1, headlight driving devices 600 and 610, headlights 700 and 710, a wireless communication device 400, an in-vehicle camera 410, a GPS (Global Positioning System) system 500, a vehicle speed sensor 510, A posture sensor 520 is provided.
  • a light distribution control device 1 headlight driving devices 600 and 610, headlights 700 and 710, a wireless communication device 400, an in-vehicle camera 410, a GPS (Global Positioning System) system 500, a vehicle speed sensor 510, A posture sensor 520 is provided.
  • GPS Global Positioning System
  • the wireless communication device 400, the in-vehicle camera 410, the GPS system 500, the vehicle speed sensor 510, and the attitude sensor 520 may be shared with other systems in the vehicle 100.
  • the light distribution control device 1 is a computer that controls the light distribution of the headlamps of the vehicle 100.
  • the light distribution control device 1 determines a light distribution area based on information on the positions of the preceding vehicle and the vehicle 100, information on the vehicle speed, and information on the traveling direction. Then, the light distribution control device 1 transmits the determined light distribution region to the headlamp driving devices 600 and 610 through the network 20.
  • the light distribution area is an area where the headlamps 700 and 710 are distributed.
  • the operation procedure performed in the light distribution control device 1 corresponds to an example of a light distribution control method and a light distribution control program.
  • the headlamp driving devices 600 and 610 control lighting of the respective light sources included in the headlamps 700 and 710 based on the light distribution area received from the light distribution control device 1.
  • the headlamps 700 and 710 are constituted by, for example, a plurality of light sources, and the headlamp driving devices 600 and 610 generate electric power for turning on / off the light sources based on the received light distribution area. Each light source is driven by supplying power to each light source individually or simultaneously.
  • the headlamp driving devices 600 and 610 change the supply current value or perform PWM (Pulse Width Modulation) control, for example, when power is supplied to drive each light source. Allows changing the brightness.
  • PWM Pulse Width Modulation
  • the headlamp driving devices 600 and 610 are installed on the left and right, respectively, but if the lighting control of each light source in the headlamps 700 and 710 can be realized, three or more may be used alone. It does n’t matter.
  • a plurality of light sources are installed in the headlamps 700 and 710, and lighting of these light sources is individually controlled by electric power supplied from the headlamp driving devices 600 and 610. By turning on / off each of the plurality of installed light sources, it is possible to change the light distribution shape that illuminates the space in front of the host vehicle.
  • Wireless communication device 400 performs wireless communication with communication devices and base stations of surrounding vehicles.
  • the in-vehicle camera 410 is installed at a specific position in the vehicle 100, for example, in the vicinity of a room mirror in the vehicle interior.
  • the in-vehicle camera 410 captures a space in front of the vehicle 100 and performs image analysis on image data obtained by the photographing, thereby detecting information related to the relative position of the vehicle ahead of the vehicle 100.
  • the in-vehicle camera 410 detects information related to the position of the headlight or tail lamp of the vehicle ahead (hereinafter referred to as the light position) based on the image data.
  • the vehicle speed sensor 510 acquires information related to the vehicle speed of the vehicle 100.
  • the attitude sensor 520 is, for example, a 6-axis acceleration sensor.
  • the attitude sensor 520 acquires information related to the traveling direction of the vehicle 100, information related to the pitch direction angle of the vehicle 100, and information related to the angle of the vehicle 100 in the yaw direction.
  • FIG. 2 shows a hardware configuration example of the light distribution control device 1 according to the present embodiment.
  • the light distribution control device 1 includes a microcomputer 10, a nonvolatile memory 15, a communication interface 16, and an input / output interface 17 as main components.
  • the microcomputer 10 includes a ROM 11 (Read Only Memory) and a RAM (Random Access Memory) 12 that are storage devices, and a CPU (Central Processing Unit) 13 that is a processor.
  • a program 14 is stored in the ROM 11.
  • the program 14 is loaded into the RAM 12 and executed by the CPU 13.
  • the program 14 includes a forward vehicle information collection unit 101, a vehicle information collection unit 102, a glare region setting unit 103, a vertical direction setting unit 104, a horizontal direction setting unit 105, and a light distribution region setting unit 106 illustrated in FIG.
  • a program for realizing the light distribution prohibited area setting unit 108 is illustrated in FIG.
  • the communication interface 16 is a circuit that functions as an interface with the network 20.
  • the input / output interface 17 is a circuit that functions as an interface with the control devices 30 and 31.
  • FIG. 3 shows a functional configuration example of the light distribution control device 1 according to the present embodiment.
  • the communication unit 107 communicates with the wireless communication device 400, the in-vehicle camera 410, the GPS system 500, the vehicle speed sensor 510, the attitude sensor 520, and the headlight driving devices 600 and 610 via the network 20.
  • the forward vehicle information collection unit 101 extracts information related to the forward vehicle from the information received by the communication unit 107.
  • the vehicle information collection unit 102 extracts information related to the vehicle 100 from the information received by the communication unit 107.
  • the glare area setting unit 103 sets the glare area based on the positional relationship between the vehicle 100 and the preceding vehicle.
  • the glare area is an area in which light distribution from the headlamps 700 and 710 may cause a driver of the vehicle ahead if the light distribution is performed. Details of the glare region will be described later.
  • the operation performed by the glare area setting unit 103 corresponds to glare area setting processing.
  • the light distribution prohibited area setting unit 108 sets the light distribution prohibited area based on the relative angle in the pitch direction between the vehicle 100 and the preceding vehicle, the relative angle in the yaw direction between the vehicle 100 and the preceding vehicle, and the glare area. To do.
  • the light distribution prohibition area is a space area in which light distribution of the headlamps 700 and 710 is prohibited among space areas in which light distribution of the headlamps 700 and 710 is possible.
  • the light distribution prohibition area setting unit 108 divides a space area where the headlights 700 and 710 can distribute light into a plurality of virtual blocks, and sets the light distribution prohibition area in units of virtual blocks.
  • the light distribution prohibition region setting unit 108 determines the relative angle in the pitch direction between the vehicle 100 and the preceding vehicle, the relative angle in the yaw direction between the vehicle 100 and the preceding vehicle, and the size of the glare region.
  • the geometric calculation used is performed, and the light distribution prohibition area is set in the range of the minimum virtual block including the area obtained by the geometric calculation.
  • the light distribution prohibition region setting unit 108 includes a vertical direction setting unit 104, a horizontal direction setting unit 105, and a light distribution region conversion unit 109.
  • the vertical direction setting unit 104 sets the length of the light distribution prohibited area in the vertical direction according to the relative angle ⁇ in the pitch direction of the preceding vehicle with respect to the vehicle 100.
  • the horizontal direction setting unit 105 sets the horizontal length of the light distribution prohibited area according to the relative angle ⁇ in the yaw direction of the preceding vehicle with respect to the vehicle 100.
  • the light distribution area conversion unit 109 performs a process of converting the light distribution prohibited area into the virtual block unit.
  • the light distribution prohibition area setting unit 108 divides a space area where the headlights 700 and 710 can distribute light into a plurality of virtual blocks, and sets the light distribution prohibition area in units of virtual blocks. More specifically, the light distribution prohibition region setting unit 108 determines the relative angle in the pitch direction between the vehicle 100 and the preceding vehicle, the relative angle in the yaw direction between the vehicle 100 and the preceding vehicle, and the size of the glare region.
  • the geometric calculation used is performed, and the light distribution prohibition area is set in the range of the minimum virtual block including the area obtained by the geometric calculation.
  • the operation performed by the light distribution prohibited area setting unit 108 corresponds to a light distribution prohibited area setting process.
  • the light distribution area setting unit 106 determines the range of the virtual block excluding the light distribution prohibited area set by the light distribution prohibited area setting unit 108 among the plurality of virtual blocks as the light distribution area.
  • the communication unit 107 is realized by the communication interface 16.
  • the wireless communication device 400 receives information regarding the angle in the pitch direction of the preceding vehicle, information regarding the angle in the yaw direction, and information regarding the vehicle classification by wireless communication. In addition, the wireless communication device 400 transmits the received information to the light distribution control device 1 through the network 20.
  • the information related to the vehicle classification is information on the category of vehicles such as passenger cars, light vehicles, large vehicles such as buses and trucks.
  • the light distribution control device 1 can determine whether the preceding vehicle is a passenger car, a light vehicle, or a large vehicle based on the information related to the vehicle classification.
  • the light distribution control device 1 can estimate the position of the windshield of the forward vehicle (the position of the glare area) by determining the vehicle classification of the forward vehicle.
  • the in-vehicle camera 410 performs image analysis on the image data obtained by photographing, and generates information regarding the relative position of the preceding vehicle with respect to the vehicle 100 and information regarding the position of the light of the preceding vehicle.
  • the in-vehicle camera 410 transmits information regarding the relative position of the preceding vehicle with respect to the vehicle 100 and information regarding the position of the light of the preceding vehicle to the light distribution control device 1 through the network 20.
  • the light distribution control device 1 can estimate the position of the windshield of the vehicle ahead (the position of the glare area) by determining the position of the light.
  • the vehicle speed sensor 510 acquires information related to the speed of the vehicle 100. Then, the vehicle speed sensor 510 transmits information regarding the speed of the vehicle 100 to the light distribution control device 1 through the network 20.
  • the attitude sensor 520 acquires information related to the traveling direction of the vehicle 100, information related to the pitch direction angle of the vehicle 100, and information related to the angle of the vehicle 100 in the yaw direction.
  • the attitude sensor 520 transmits information related to the traveling direction of the vehicle 100, information related to the angle in the pitch direction of the vehicle 100, and information related to the angle in the yaw direction of the vehicle 100 to the light distribution control device 1 through the network 20.
  • the source of the above information may not be as described above, or may be a device other than the above device. .
  • the forward vehicle information collection unit 101 has information on the relative position of the forward vehicle with respect to the vehicle 100, information on the position of the light of the forward vehicle, the angle in the pitch direction of the forward vehicle, and the angle in the yaw direction of the forward vehicle.
  • Information regarding the vehicle classification of the preceding vehicle is acquired from the communication unit 107.
  • the front vehicle information collection part 101 is the information regarding the relative position of the front vehicle with respect to the vehicle 100, the position of the light of the front vehicle, the angle of the pitch direction of the front vehicle, the information about the angle of the yaw direction of the front vehicle, the vehicle of the front vehicle Information on the classification is transmitted to the glare area setting unit 103.
  • the vehicle information collection unit 102 acquires information regarding the pitch direction angle of the vehicle 100 and the yaw direction angle of the vehicle 100 from the communication unit 107. Then, the vehicle information collection unit 102 transmits information regarding the pitch direction angle of the vehicle 100 and the yaw direction angle of the vehicle 100 to the glare region setting unit 103.
  • the glare area setting unit 103 sets a glare area.
  • FIG. 4 shows an example of the glare area.
  • the depth of the glare region is defined as x
  • the lateral width of the glare region is defined as y
  • the height of the glare region is defined as z with reference to the front of the vehicle.
  • the glare area setting unit 103 determines the length of the glare area from x, y, z, and the glare area from the ground. Set the height and position of the glare area.
  • FIG. 5 shows the glare region from the side of the vehicle.
  • the glare area setting unit 103 includes information on the lengths of x, y, and z in the glare area, information on the height of the glare area from the ground, information on the position of the glare area, the angle in the pitch direction of the vehicle 100, Information regarding the angle in the yaw direction, information regarding the angle in the pitch direction of the preceding vehicle, and information regarding the angle in the yaw direction of the preceding vehicle are transmitted to the vertical direction setting unit 104.
  • the vertical direction setting unit 104 sets the length of the light distribution prohibited area in the vertical direction according to the relative angle ⁇ in the pitch direction of the preceding vehicle with respect to the vehicle 100.
  • the vertical direction setting unit 104 calculates the relative angle ⁇ in the pitch direction based on the difference between the absolute value of the angle in the pitch direction of the preceding vehicle and the value of the angle in the pitch direction of the vehicle 100.
  • FIG. 6 shows an outline of the operation of the vertical direction setting unit 104, and shows a glare region when the relative angle ⁇ ⁇ 0 ° in the pitch direction. Since the glare region is inclined in the pitch direction by the relative angle ⁇ , it is necessary to expand in the vertical direction along with the light distribution prohibited region.
  • the vertical direction setting unit 104 obtains the length of the light distribution prohibited area in the vertical direction by the following equation (1). x ⁇ cos (90 ° ⁇ ) + z ⁇ sin (90 ° ⁇ ) (1)
  • FIG. 7 is a flowchart showing details of the operation of the vertical direction setting unit 104.
  • step S100 the vertical direction setting unit 104 determines the presence or absence of a forward vehicle. If the vertical direction setting unit 104 receives information about the lengths of x, y, and z of the glare area from the glare area setting unit 103, the vertical direction setting unit 104 determines that a vehicle ahead is present. When it is determined that a preceding vehicle exists, the vertical direction setting unit 104 determines in step S101 the pitch direction of the preceding vehicle relative to the vehicle 100 from the information regarding the angle in the pitch direction of the preceding vehicle and the information regarding the angle in the pitch direction of the vehicle 100. Relative angle ⁇ is calculated.
  • step S102 the vertical direction setting unit 104 sets the vertical length of the light distribution prohibited area according to the above-described equation (1) according to the relative angle ⁇ . If it is determined in step S100 that there is no preceding vehicle, the vertical direction setting unit 104 ends the process assuming that there is no light distribution prohibited area. If the vertical length of the light distribution prohibited area is set in step S102, the vertical direction setting unit 104 sets information on the vertical length of the light distribution prohibited area, x, y, and z of the glare area.
  • Information on the length, information on the height of the glare area from the ground, information on the position of the glare area, information on the angle in the yaw direction of the vehicle 100, and information on the angle in the yaw direction of the preceding vehicle are transmitted to the horizontal direction setting unit 105 To do.
  • the horizontal direction setting unit 105 sets the horizontal length of the light distribution prohibited area according to the relative angle ⁇ in the yaw direction of the preceding vehicle with respect to the vehicle 100.
  • the horizontal direction setting unit 105 calculates the relative angle ⁇ in the yaw direction based on the difference between the absolute value of the angle in the yaw direction of the preceding vehicle and the value of the angle in the yaw direction of the vehicle 100.
  • FIG. 8 shows the glare region from above the vehicle.
  • the horizontal direction setting unit 105 obtains the horizontal length of the light distribution prohibited area by the following equation (2). x ⁇ cos (90 ° ⁇ ) + y ⁇ sin (90 ° ⁇ ) (2)
  • FIG. 10 is a flowchart showing details of the operation of the horizontal direction setting unit 105.
  • the horizontal direction setting unit 105 determines the presence or absence of a forward vehicle. If the horizontal direction setting unit 105 receives information about the vertical length of the light distribution prohibited area from the vertical direction setting unit 104, the horizontal direction setting unit 105 determines that there is a vehicle ahead. If it is determined that there is a preceding vehicle, the horizontal direction setting unit 105 determines in step S201 the yaw direction of the preceding vehicle relative to the vehicle 100 from the information regarding the angle of the yaw direction of the preceding vehicle and the information regarding the angle of the yaw direction of the vehicle 100. The relative angle ⁇ of is calculated.
  • step S202 the horizontal direction setting unit 105 sets the horizontal length of the light distribution prohibited area according to the above-described equation (2) according to the relative angle ⁇ . If it is determined in step S200 that there is no preceding vehicle, the horizontal direction setting unit 105 ends the process assuming that there is no light distribution prohibition area. If the horizontal length of the light distribution prohibited area is set in step S202, the horizontal direction setting unit 105 sets the information on the position of the light distribution prohibited area in the glare area and the length of the light distribution prohibited area in the horizontal direction. And information on the vertical length of the light distribution prohibited area are transmitted to the light distribution prohibited area conversion unit 109.
  • the light distribution prohibition area conversion unit 109 represents the information on the position of the light distribution prohibition area, the information on the horizontal length of the light distribution prohibition area, and the vertical direction of the light distribution prohibition area expressed in the three-dimensional world coordinate system. Based on the information on the length of the direction, a spatial area where the headlamps 700 and 710 can distribute light (hereinafter, a light distribution possible area) is set in a two-dimensional screen coordinate system. More specifically, the light distribution prohibition area conversion unit 109 sets the light distribution prohibition area as a set of arbitrarily divided virtual blocks in the screen coordinate system.
  • FIG. 15 is a flowchart showing details of the operation of the light distribution prohibited area conversion unit 109.
  • the light distribution prohibition region conversion unit 109 determines whether there is a vehicle ahead. If the light distribution prohibition area conversion unit 109 receives the horizontal length of the light distribution prohibition area from the horizontal direction setting unit 105, the light distribution prohibition area conversion unit 109 determines that a preceding vehicle exists. If it is determined that there is a preceding vehicle, the light distribution prohibition area conversion unit 109 determines in step S401 the information on the position of the light distribution prohibition area, the information on the horizontal length of the light distribution prohibition area, and the vertical of the light distribution prohibition area. A light distribution prohibition area is arranged in the world coordinate system based on the direction length information.
  • step S402 conversion processing between general world coordinates and screen coordinates in the field of 3D graphics is performed, and the light distribution prohibited area handled in the 3D world coordinate system is viewed from the vehicle 100 in front. Converted to a two-dimensional screen coordinate system.
  • the light distribution prohibition area conversion unit 109 performs conversion so that the space represented by the screen coordinate system matches the light distribution possible area.
  • step S403 the light distribution prohibition area conversion unit 109 divides the light distribution possible area into a plurality of virtual blocks.
  • the light distribution prohibition area conversion unit 109 is preliminarily stored in the ROM 11 or the nonvolatile memory 15 in the microcomputer 10 based on the vertical division number and the horizontal division number for the space area. To split.
  • step S404 the light distribution prohibition area conversion unit 109 determines whether the light distribution prohibition area and each virtual block overlap, and if they overlap, determines the virtual block as a light distribution prohibition area. To the light distribution area setting unit 106.
  • the overlap determination here may use a general collision detection algorithm, an inside / outside determination algorithm, or the like. If it is determined in step S400 that there is no preceding vehicle, the light distribution prohibition area conversion unit 109 determines that there is no light distribution prohibition area and ends the process.
  • FIG. 11 is a flowchart illustrating an operation example of the light distribution area setting unit 106.
  • the light distribution area setting unit 106 determines whether or not there is a light distribution prohibited area.
  • the light distribution area setting unit 106 determines that there is a light distribution prohibited area if it receives information about the horizontal length of the light distribution prohibited area from the horizontal direction setting unit 105. If it is determined that the light distribution prohibited area exists, the light distribution area setting unit 106 sets a light distribution area that does not include the light distribution prohibited area in step S301. That is, the range of the virtual block excluding the light distribution prohibition area among the plurality of virtual blocks corresponding to the space area where the headlights 700 and 710 can distribute light is set as the light distribution area.
  • step S300 if it is determined in step S300 that the light distribution prohibition area does not exist, all of the plurality of virtual blocks corresponding to the entire space area in which the headlights 700 and 710 can distribute light are defined as the light distribution prohibition area.
  • the light distribution area setting unit 106 transmits information for specifying the set light distribution area to the headlight driving devices 600 and 610 through the network 20.
  • the headlamp driving devices 600 and 610 receive information specifying the light distribution area transmitted from the light distribution area setting unit 106 via the network 20. Then, the headlamp driving devices 600 and 610 generate electric power for turning on / off the light sources in the headlamps 700 and 710 based on the light distribution area specified by the received information. Each light source is driven by supplying power to the light sources individually or simultaneously. In addition, the headlamp driving devices 600 and 610 change the brightness at the time of lighting of each light source by, for example, changing the supply current value or performing PWM control in the power supply for driving each light source. To do.
  • the light distribution prohibition region is set according to the positions of the vehicle 100 and the preceding vehicle, the relative angle in the pitch direction between the vehicle 100 and the preceding vehicle, and the relative angle in the yaw direction between the vehicle 100 and the preceding vehicle. can do. For this reason, when traveling on a curve or a slope, the possibility of dazzling the driver of the front vehicle due to the light distribution by the headlamp of the vehicle 100 can be reduced.
  • FIG. 12 shows an example of the light distribution prohibited area and the light distribution area when correction based on the relative angle in the pitch direction and the relative angle in the yaw direction is not performed.
  • FIG. 13 shows a problem when correction based on the relative angle in the pitch direction and the relative angle in the yaw direction is not performed.
  • FIG. 14 shows an example of the light distribution prohibited area and the light distribution area when correction based on the relative angle in the pitch direction and the relative angle in the yaw direction is performed.
  • 12 to 14 show space areas where the headlamps 700 and 710 can distribute light, and rectangular areas indicate virtual blocks that divide the space areas. As shown in FIG.
  • the light distribution prohibited area setting unit 108 sets the light distribution prohibited area based on the relative angle in the pitch direction between the vehicle 100 and the preceding vehicle and the relative angle in the yaw direction between the vehicle 100 and the preceding vehicle. Therefore, as shown in FIG. 14, all of the glare area in which the inclination of the preceding vehicle is reflected is set as the light distribution prohibited area. In this case, the possibility of dazzling the driver of the vehicle ahead is low.
  • effective light distribution control according to the relative positional relationship between the vehicle 100 and the preceding vehicle can be performed.
  • the light distribution prohibited area may be set using only one of the relative angle in the pitch direction between the vehicle 100 and the preceding vehicle and the relative angle in the yaw direction between the vehicle 100 and the preceding vehicle. .
  • the horizontal length of the light-blocking prohibition region based on the horizontal length y of the glare region and the relative position of the preceding vehicle with respect to the vehicle 100.
  • the vertical direction z of the light shielding prohibition region is determined based on the vertical length z of the glare region and the relative position of the preceding vehicle with respect to the vehicle 100. Set the length.
  • the forward vehicle information collection unit 101, the vehicle information collection unit 102, the glare area setting unit 103, the vertical direction setting unit 104, the horizontal direction setting unit 105, and the light distribution area setting unit 106 Information, data, signal values, and variable values indicating the processing results of the light distribution prohibited area setting unit 108 are stored in the RAM 12, the nonvolatile memory 15, or a register or cache memory in the CPU 13. Further, the functions of the front vehicle information collecting unit 101, the vehicle information collecting unit 102, the glare area setting unit 103, the vertical direction setting unit 104, the horizontal direction setting unit 105, the light distribution area setting unit 106, and the light distribution prohibited area setting unit 108 are provided.
  • the realized program 14 may be stored in a portable storage medium such as a magnetic disk, a flexible disk, an optical disk, a compact disk, a Blu-ray (registered trademark) disk, or a DVD.
  • the light distribution control device 1 includes a logic IC (Integrated Circuit), a GA (Gate Array), and an ASIC (Application Specific). It may be realized by an electronic circuit such as an integrated circuit (FPGA) or a field-programmable gate array (FPGA).
  • the processor and the electronic circuit are also collectively referred to as a processing circuit.
  • 1 light distribution control device 10 microcomputer, 11 ROM, 12 RAM, 13 CPU, 14 program, 15 nonvolatile memory, 16 communication interface, 17 input / output interface, 20 network, 30 control device, 31 control device, 100 vehicle, 101 vehicle information collection unit, 102 vehicle information collection unit, 103 glare area setting unit, 104 vertical direction setting unit, 105 horizontal direction setting unit, 106 light distribution region setting unit, 107 communication unit, 108 light distribution prohibited region setting unit, 400 wireless communication device, 410 on-vehicle camera, 500 GPS system, 510 vehicle speed sensor, 520 attitude sensor, 600 headlight driving device, 610 headlight driving device, 700 headlight, 710 headlight.

Landscapes

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

Abstract

L'invention concerne un dispositif de commande de distribution de lumière (1) qui est installé dans un véhicule de manière à commander la distribution de lumière des phares du véhicule. Une unité de définition de région d'éblouissement (103) définit une région d'éblouissement dans laquelle le conducteur d'un véhicule avant risque d'être ébloui par une distribution de lumière à l'intérieur d'une région d'espace où de la lumière peut être distribuée par les phares. Une unité de définition de région d'interdiction de distribution de lumière (108) définit une région d'interdiction de distribution de lumière où la distribution de lumière des phares est interdite à l'intérieur de la région d'espace où de la lumière peut être distribuée par les phares, sur la base de l'angle relatif dans la direction de pas et/ou dans la direction de lacet entre le véhicule et le véhicule avant et la région d'éblouissement.
PCT/JP2016/059706 2016-03-25 2016-03-25 Dispositif de commande de distribution de lumière, procédé de commande de distribution de lumière, et programme de commande de distribution de lumière WO2017163414A1 (fr)

Priority Applications (1)

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PCT/JP2016/059706 WO2017163414A1 (fr) 2016-03-25 2016-03-25 Dispositif de commande de distribution de lumière, procédé de commande de distribution de lumière, et programme de commande de distribution de lumière

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PCT/JP2016/059706 WO2017163414A1 (fr) 2016-03-25 2016-03-25 Dispositif de commande de distribution de lumière, procédé de commande de distribution de lumière, et programme de commande de distribution de lumière

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WO2017163414A1 true WO2017163414A1 (fr) 2017-09-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020208818A1 (fr) * 2019-04-12 2020-10-15 三菱電機株式会社 Système de commande de distribution de lumière

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2156984A1 (fr) * 2008-08-20 2010-02-24 Hella KG Hueck & Co. Procédé et dispositif de commande de ligne de coupure verticale de phares
EP2156983A1 (fr) * 2008-08-20 2010-02-24 Hella KG Hueck & Co. Procédé et dispositif de commande de la ligne de coupure verticale de phares
JP2013147111A (ja) * 2012-01-18 2013-08-01 Stanley Electric Co Ltd 車両用前照灯の点灯制御装置、車両用前照灯システム
JP2013151195A (ja) * 2012-01-24 2013-08-08 Stanley Electric Co Ltd 車両用前照灯の点灯制御装置、車両用前照灯システム
JP2013184602A (ja) * 2012-03-08 2013-09-19 Stanley Electric Co Ltd 車両用前照灯の点灯制御装置及び車両用前照灯システム
JP2013184595A (ja) * 2012-03-08 2013-09-19 Stanley Electric Co Ltd 車両用前照灯の点灯制御装置及び車両用前照灯システム
JP2013193644A (ja) * 2012-03-22 2013-09-30 Stanley Electric Co Ltd 車両用前照灯の配光制御システム及び車両用前照灯システム

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2156984A1 (fr) * 2008-08-20 2010-02-24 Hella KG Hueck & Co. Procédé et dispositif de commande de ligne de coupure verticale de phares
EP2156983A1 (fr) * 2008-08-20 2010-02-24 Hella KG Hueck & Co. Procédé et dispositif de commande de la ligne de coupure verticale de phares
JP2013147111A (ja) * 2012-01-18 2013-08-01 Stanley Electric Co Ltd 車両用前照灯の点灯制御装置、車両用前照灯システム
JP2013151195A (ja) * 2012-01-24 2013-08-08 Stanley Electric Co Ltd 車両用前照灯の点灯制御装置、車両用前照灯システム
JP2013184602A (ja) * 2012-03-08 2013-09-19 Stanley Electric Co Ltd 車両用前照灯の点灯制御装置及び車両用前照灯システム
JP2013184595A (ja) * 2012-03-08 2013-09-19 Stanley Electric Co Ltd 車両用前照灯の点灯制御装置及び車両用前照灯システム
JP2013193644A (ja) * 2012-03-22 2013-09-30 Stanley Electric Co Ltd 車両用前照灯の配光制御システム及び車両用前照灯システム

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020208818A1 (fr) * 2019-04-12 2020-10-15 三菱電機株式会社 Système de commande de distribution de lumière
JPWO2020208818A1 (ja) * 2019-04-12 2021-09-27 三菱電機株式会社 配光制御システム

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