WO2020137455A1 - Lumière de véhicule - Google Patents

Lumière de véhicule Download PDF

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Publication number
WO2020137455A1
WO2020137455A1 PCT/JP2019/047877 JP2019047877W WO2020137455A1 WO 2020137455 A1 WO2020137455 A1 WO 2020137455A1 JP 2019047877 W JP2019047877 W JP 2019047877W WO 2020137455 A1 WO2020137455 A1 WO 2020137455A1
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WO
WIPO (PCT)
Prior art keywords
vehicle
lamp
unit
light
automatic driving
Prior art date
Application number
PCT/JP2019/047877
Other languages
English (en)
Japanese (ja)
Inventor
手塚　伸孝
拓紀 井上
裕一 綿野
重之 渡邉
Original Assignee
株式会社小糸製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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 CN201980087010.4A priority Critical patent/CN113226848A/zh
Priority to JP2020563020A priority patent/JP7422088B2/ja
Publication of WO2020137455A1 publication Critical patent/WO2020137455A1/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
    • 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
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B60Q1/507—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking specific to autonomous vehicles
    • 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
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B60Q1/543—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking for indicating other states or conditions of the vehicle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/19—Attachment of light sources or lamp holders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/08—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light
    • 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
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B60Q1/503—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking using luminous text or symbol displays in or on the vehicle, e.g. static text
    • B60Q1/5035—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking using luminous text or symbol displays in or on the vehicle, e.g. static text electronic displays
    • B60Q1/5037—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking using luminous text or symbol displays in or on the vehicle, e.g. static text electronic displays the display content changing automatically, e.g. depending on traffic situation
    • 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
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B60Q1/545—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking for indicating other traffic conditions, e.g. fog, heavy traffic
    • 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
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B60Q1/547—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking for issuing requests to other traffic participants; for confirming to other traffic participants they can proceed, e.g. they can overtake

Definitions

  • the present invention relates to a vehicle lamp mounted on an autonomous vehicle.
  • Levels 0 to 5 are defined for automatic operation, and generally level 3 or higher is automatic operation.
  • Level 3 is called conditional automatic driving, in which the system operates everything at a specific location and the driver operates in an emergency.
  • Level 4 is called highly automated driving, and the system recognizes traffic conditions only in a specific place such as an expressway and performs all operations related to driving.
  • Level 5 is called fully automatic driving, in which the system recognizes traffic conditions without restrictions on location and performs all driving-related operations.
  • the inventor of the present invention has invented, as a lamp suitable for such an autonomous vehicle, a lamp for a vehicle that can communicate not only with the light around the vehicle but also with a person.
  • the present invention has been made in view of these circumstances, and an object thereof is to provide a vehicle lighting device that can communicate with a person.
  • a vehicular lamp includes a sensor device for detecting that an occupant is around the vehicle, and a sequential pattern on a road surface around the vehicle when the occupant is detected by the sensor device. And a road surface drawing lamp unit for drawing.
  • This vehicle lamp includes an automatic driving marker lamp unit that emits light while the vehicle is performing automatic driving, and an automatic driving signal lamp unit that can change a light emission pattern based on information about the vehicle surroundings.
  • This vehicular lamp includes an automatic driving marker lamp unit that emits turquoise light and a marker lamp unit that emits red light.
  • the automatic driving marker lamp unit and the marker lamp unit are arranged such that their light emitting areas are separated from each other by a predetermined distance or more.
  • This vehicular lamp includes an irradiation light color variable lamp unit capable of emitting either white light to be emitted in the vehicle traveling direction or red light to be emitted in the opposite direction to the vehicle traveling direction.
  • FIG. 1 is a schematic diagram showing a vehicle equipped with a vehicular lamp according to a first exemplary embodiment of the present invention. It is a schematic front view which shows the A section of the vehicle lamp shown in FIG.
  • FIG. 3 is a schematic BB sectional view of the vehicle lamp shown in FIG. 2.
  • It is a schematic perspective view of a light emitting unit.
  • It is a functional block diagram for explaining the vehicular lamp according to the first exemplary embodiment of the present invention. It is a figure which shows an example of road surface drawing by a road surface drawing lamp unit. It is a figure which shows another example of road surface drawing by a road surface drawing lamp unit.
  • It is a schematic diagram showing a part of outer lens. It is a schematic diagram of a boundary part of an outer lens and a bonnet.
  • FIG. 6 is a side view of a vehicle equipped with a vehicular lamp according to a second exemplary embodiment of the present invention.
  • FIG. 6 is a front view of a vehicle equipped with a vehicular lamp according to a second exemplary embodiment of the present invention. It is a schematic front view which shows some vehicle lamps.
  • FIG. 13 is a schematic cross-sectional view taken along the line AA of the vehicular lamp shown in FIG. 12. It is a functional block diagram for explaining a vehicle lamp according to a second embodiment of the present invention. It is a rear view of the vehicle carrying the vehicle lamp according to the third embodiment of the present invention. It is a schematic vertical cross-sectional view for explaining the configuration of the irradiation light color variable lamp unit.
  • FIG. 1 is a schematic diagram showing a vehicle 100 equipped with a vehicular lamp 10 according to a first embodiment of the present invention.
  • This vehicle 100 is a personally owned vehicle (POV) that supports level 3 autonomous driving.
  • the vehicular lamp 10 is a headlight provided in the front part of the vehicle 100.
  • FIG. 2 is a schematic front view showing a portion A (a portion from the center toward the vehicle on the left side) of the vehicular lamp 10 shown in FIG. 1.
  • the vehicular lamp 10 includes a lamp body 12 and a transparent outer lens 14 arranged on the lamp body 12 front side of the lamp.
  • the lamp body 12 and the outer lens 14 form a lamp chamber.
  • a lamp unit and a sensor device that detects information around the vehicle are installed in the lamp room.
  • the lighting unit includes a headlamp unit 16 capable of irradiating a high beam and a low beam, a turn signal lamp 18, and a lamp for an automatic driving (AD: Automated Driving) marker for informing the surroundings that the vehicle is in automatic driving.
  • a unit 20 and a road surface drawing lamp unit 22 are included.
  • the headlight unit 16 and the turn signal lamp 18 may use LEDs.
  • the road surface drawing lamp unit 22 may be a digital mirror device (DMD).
  • the sensor device includes a camera 24, a millimeter wave radar 26, and a LiDAR (Light Detection and Ranging) 28.
  • the vehicular lamp 10 according to the first exemplary embodiment is one in which these plural lamp units and plural sensor devices are integrally incorporated in a lamp chamber.
  • an autonomous vehicle it is necessary to properly recognize surrounding environments such as moving objects and road shapes around the vehicle. It is also necessary to have a function to inform the surroundings that the vehicle is an autonomous vehicle.
  • the vehicular lamp 10 according to the first exemplary embodiment in addition to the headlamp unit 16 that emits a low beam or a high beam, the automatic driving marker lamp unit 20 and various sensor devices are integrally incorporated, It is possible to realize a vehicle lamp suitable for an autonomous vehicle.
  • the automatic driving marker lamp unit 20 is arranged so as to extend in one character in the vehicle width direction, and the vehicle is provided below the automatic driving marker lamp unit 20.
  • the LiDAR 28, the millimeter wave radar 26, the road surface drawing lamp unit 22, and the headlight unit 16 are arranged in this order from the center to the left side toward the.
  • a camera 24 is arranged below the road surface drawing lamp unit 22, and a turn signal lamp 18 is arranged below the headlight unit 16. The same applies from the center of the vehicle to the right side.
  • these arrangements are examples, and the present invention is not limited thereto.
  • FIG. 3 is a schematic cross-sectional view of the vehicle lamp 10 shown in FIG.
  • a millimeter wave radar 26 is arranged in a lamp chamber formed by the lamp body 12 and the outer lens 14.
  • the vehicular lamp 10 according to the first exemplary embodiment includes a light guide body 30 arranged so as to cover the front surface of the millimeter wave radar 26.
  • the light guide 30 has a light entrance portion 30a formed at the upper end. Leakage light from the automatic driving marker lamp unit 20 and the road surface drawing lamp unit 22 enters the light guide body from the light entrance portion 30a, and the light guide body 30 emits light.
  • the presence of the millimeter wave radar 26 can be hidden and the appearance can be improved.
  • the automatic driving marker lamp unit 20 includes a plurality of light emitting units 34.
  • the plurality of light emitting units 34 are regularly arranged in the lamp chamber. Each light emitting unit 34 emits turquoise light.
  • FIG. 4 is a schematic perspective view of the light emitting unit 34.
  • the light emitting unit 34 includes a base portion 36, an LED provided in the base portion 36 for emitting light in a turquoise color, and a lens unit 38 for controlling light from the LED.
  • the lens unit 38 includes a lens body portion 39 formed of a transparent member and a turquoise plate lens portion 40 embedded in a part of the lens body portion 39.
  • the lens body 39 and the plate-shaped lens 40 form an integrated lens.
  • FIG. 5 is a functional block diagram for explaining the vehicular lamp 10 according to the first exemplary embodiment of the present invention.
  • the vehicle lamp 10 includes a headlamp unit 16, a turn signal lamp 18, an automatic driving marker lamp unit 20, and a road surface drawing lamp unit 22 as lamp units.
  • the vehicular lamp 10 also includes a millimeter wave radar 26, a camera 24, and a LiDAR 28 as sensor devices.
  • the vehicle lamp 10 includes a control device 42 connected to the lamp unit and the sensor device.
  • the control device 42 may be arranged inside the lamp body 12 of the vehicular lamp 10 or may be arranged outside the lamp body 12.
  • control device 42 may be connected to an automatic driving control device 44 included in the vehicle 100.
  • the control device 42 acquires information on whether or not the vehicle 100 is in automatic driving from the automatic driving control device 44, and causes the automatic driving marker lamp unit 20 to emit turquoise color while performing automatic driving.
  • the camera 24 captures an image around the vehicle and sends the captured image to the control device 42.
  • the control device 42 performs image recognition of people around the vehicle from the image captured by the camera 24, and detects that a pre-registered occupant is around the vehicle. Since the image is used for detection, the direction in which the occupant is present can be detected as viewed from the camera 24.
  • the millimeter wave radar 26 or the LiDAR 28 may be used to improve the detection accuracy.
  • FIG. 6 shows an example of road surface drawing by the road surface drawing lamp unit 22.
  • FIG. 6 shows a situation in which the occupant 60 is heading toward the vehicle 100 parked in the parking lot.
  • the control device 42 controls the road surface drawing lamp unit 22 to draw a sequential pattern 62 on the road surface around the vehicle in the direction in which the detected occupant 60 exists.
  • the sequential pattern is an irradiation pattern that lights up in a chain, and is, for example, a pattern continuously drawn on the road surface from a position near the occupant 60 toward the vehicle 100.
  • the "hospitality" can be provided to the occupant 60 who has returned to the vehicle 100.
  • the vehicular lamp 10 according to the first exemplary embodiment, it is possible to communicate with the occupant in this manner.
  • control device 42 may cause another lamp unit different from the road surface drawing lamp unit 22, for example, the automatic driving marker lamp unit 20 to interlock with the road surface drawing lamp unit 22 to sequentially emit light.
  • the road surface drawing lamp unit 22 has the plurality of light emitting units 34 that emit light in turquoise color, novel sequential light emission is possible, and a more impressive "hospitality" effect can be provided to the occupant 60.
  • “The automatic driving marker lamp unit 20 and the road surface drawing lamp unit 22 are interlocked with each other” means that, for example, the sequential light emission of the automatic driving marker lamp unit 20 is finished after the road surface drawing lamp unit 22 finishes drawing the road surface in a sequential pattern. It may be the one that starts. Alternatively, the sequential driving of the automatic driving marker lamp unit 20 may be performed during the drawing of the sequential pattern by the road surface drawing lamp unit 22.
  • the headlight unit 16 and the turn signal lamp 18 may be linked with the road surface drawing lamp unit 22 to sequentially emit light.
  • FIG. 7 shows another example of road surface drawing by the road surface drawing lamp unit 22.
  • FIG. 7 shows a situation where no occupant exists around vehicle 100.
  • the control device 42 controls the road surface drawing lamp unit 22 to draw the sequential pattern 64 in the irradiable area around the vehicle. By drawing such a sequential pattern on the road surface, "hospitality" can be provided to people around the vehicle.
  • FIG. 8 is a schematic view showing a part of the outer lens 14.
  • the outer lens 14 includes an outer lens 14a for the automatic driving marker lamp unit 20 and an outer lens 14b for the headlamp unit 16, the turn signal lamp 18, and the road surface drawing lamp unit 22.
  • the outer lenses 14a and 14b are integrally formed of a resin member with the front panel 80 and the hood 82. By integrally molding the resin member, the weight of the vehicle 100 can be reduced.
  • FIG. 9 is a schematic view of a boundary portion between the outer lens 14a and the hood 82.
  • the outer lenses 14a and 14b are transparent, and the hood 82 and the front panel 80 are colored. Therefore, a boundary line (parting line) is generated at the boundary portion between the outer lens 14a and the hood 82 (C portion in FIG. 8) and the boundary portion between the outer lens 14b and the front panel 80 (D portion in FIG. 8).
  • the boundary line is made inconspicuous by providing a gradation for coloring the boundary portion. Accordingly, it is possible to realize a novel design in which the sense of unity between the vehicular lamp 10 and the body of the vehicle 100 is enhanced.
  • the linear light guide body 106 is arranged at the boundary between the body 102 and the side window 104.
  • the light guide 106 is configured to emit a turquoise color.
  • the second embodiment has been made in view of such a situation, and an object thereof is to provide a vehicular lamp capable of displaying while the vehicle is driving automatically and communicating with people around the vehicle.
  • FIG. 10 is a side view of a vehicle 1100 equipped with a vehicle lamp 1010 according to the second embodiment of the present invention.
  • FIG. 11 is a front view of a vehicle 1100 equipped with a vehicle lamp 1010 according to the second embodiment of the present invention.
  • the vehicle 1100 is a vehicle that supports level 5 fully autonomous driving and does not have a driver's seat.
  • Vehicle 1100 is substantially symmetrical in the length direction of the vehicle (direction perpendicular to the vehicle width direction, hereinafter appropriately referred to as “vehicle length direction”), and is movable in both vehicle length directions.
  • vehicle length direction direction perpendicular to the vehicle width direction
  • one side in the vehicle length direction is the front side
  • the other side in the vehicle length direction (right side in FIG. 10) is the back side.
  • the vehicle 1100 includes a boarding/alighting section 1102, on which a passenger gets in and out, tires 1104, and the like.
  • a vehicle lamp 1010 is arranged on the front side of the vehicle 1100, and a vehicle lamp 1011 is arranged on the rear side. Since the vehicle lamps 1010 and 1011 have substantially the same configuration and function, the vehicle lamp 1010 arranged on the front side will be described below.
  • FIG. 12 is a schematic front view showing a part of the vehicle lamp 1010.
  • FIG. 13 is a schematic cross-sectional view taken along the line AA of the vehicular lamp 1010 shown in FIG.
  • the vehicular lamp 1010 includes a lamp body 1012 and a transparent outer lens 1014 arranged on the lamp body 1012 front side of the lamp.
  • the lamp body 1012 and the outer lens 1014 form a lamp chamber 1016.
  • a plurality of lamp units are arranged in the lamp room 1016.
  • the lamp units are arranged in a substantially quadrangular shape in a front view.
  • a lamp unit 1018 for an automated driving (AD) marker is arranged at the position of the upper side of a quadrangle extending in a substantially horizontal direction.
  • the automatic driving marker lamp unit 1018 is a lamp for informing the surroundings that the vehicle is in automatic driving, and constantly emits turquoise light while the vehicle is in automatic driving.
  • an automatic operation (AD) signal lamp unit 1020 is arranged at the position of the lower side of a rectangle extending in a substantially horizontal direction. That is, the automatic driving signal lamp unit 1020 is arranged at a predetermined distance from the automatic driving marker lamp unit 1018. This is to make it easier to distinguish the light emitting state of the automatic driving marker lamp unit 1018 from the light emitting state of the automatic driving signal lamp unit 1020.
  • the self-driving signal lamp unit 1020 is a lamp for the self-driving vehicle to communicate with a pedestrian or the like such as giving way to the pedestrian or suggesting a start, and the light emission pattern can be changed based on information around the vehicle.
  • Each of the automatic driving marker lamp unit 1018 and the automatic driving signal lamp unit 1020 includes an LED 1022 that emits a plurality of turquoise colors and a transparent inner lens 1024, and emits turquoise light.
  • a white light emitting LED and a turquoise inner lens may be used to irradiate turquoise light.
  • Three irradiation light color variable lamp units 1026 and three automatic operation signal lamp units 1020 are alternately arranged in the vertical direction at positions on the left and right sides of a quadrangle extending in a substantially vertical direction.
  • a millimeter wave radar 1028 for detecting a pedestrian or the like, a light guide body 1030 arranged so as to cover the front surface of the millimeter wave radar 1028, and light inside the light guide body 1030 are provided below the lamp units.
  • a light source 1032 for supplying is arranged. In this manner, by covering the front surface of the millimeter wave radar 1028 with the light guide 1030 to emit light, the presence of the millimeter wave radar 1028 can be hidden and the appearance can be improved.
  • the variable illumination light color lamp unit 1026 is configured to be capable of emitting either white light to be emitted in the traveling direction of the vehicle or red light to be emitted in the opposite direction to the traveling direction of the vehicle.
  • the white light to be emitted in the traveling direction of the vehicle is light of a color and intensity that meets the regulations required for ordinary headlamps.
  • the red light to be emitted in the direction opposite to the traveling direction of the vehicle is light of a color and intensity that meets the regulations required for ordinary rear lamps.
  • Such a variable illumination light color lamp unit 1026 can illuminate either the white light or the red light in front of the lamp according to the traveling direction of the vehicle, so that the traveling direction is switched depending on the surrounding conditions. Suitable for cars.
  • a display device 1060 is arranged inside a plurality of lamp units arranged in a substantially rectangular shape.
  • the display device 1060 displays the state information of the vehicle 1100.
  • the display device 1060 is not particularly limited as long as it is a thin display, and an organic EL display or a liquid crystal display can be preferably used.
  • FIG. 14 is a functional block diagram for explaining a vehicular lamp 1010 according to the second embodiment of the present invention.
  • a vehicle lamp 1010 includes a millimeter wave radar 1028 as a sensor device that detects information around the vehicle, an automatic driving marker lamp unit 1018, an automatic driving signal lamp unit 1020, and a display device. 1060 and a control device 1040.
  • the control device 1040 may be arranged inside the lamp body 1012 of the vehicular lamp 1010, or may be arranged outside the lamp body 1012.
  • the control device 1040 detects a person from the information from the millimeter wave radar 1028.
  • control device 1040 may be connected to the automatic driving control device 1041 included in the vehicle 1100.
  • the control device 1040 acquires information on whether or not the vehicle 1100 is in automatic driving from the automatic driving control device 1041 and causes the automatic driving marker lamp unit 1018 to constantly emit light during automatic driving.
  • control device 1040 controls the light emission pattern of the automatic driving signal lamp unit 1020 based on the information around the vehicle detected by the millimeter wave radar 1028. For example, when a pedestrian is detected and stopped, the automatic driving signal lamp unit 1020 is continuously illuminated, for example, from one end to the other end, thereby indicating that the pedestrian is willing to give way. According to the second embodiment, it is possible to communicate with pedestrians and the like around the vehicle in this manner.
  • control device 1040 controls the display of the display device 1060.
  • the control device 1040 may provide a display for assisting these lamps on the display device 1060 in cooperation with, for example, a tail lamp or a stop lamp.
  • the on/off information of the tail lamp and the stop lamp may be acquired from the automatic driving control device 1041. For example, by causing the display device 1060 to emit red light in conjunction with the stop lamp, the pedestrian and other vehicles can be alerted.
  • the control device 1040 may increase the light emission intensity of the display device 1060 or change the light emission color when the millimeter wave radar 1028 detects that a pedestrian approaches within a predetermined distance. This allows the pedestrian to recognize that the vehicle is approaching.
  • the control device 1040 may display graphics or characters on the display device 1060 in order to present the vehicle state information to pedestrians and other vehicles, in addition to simply causing the display device 1060 to emit light.
  • characters or icons can be displayed on the display device 1060 to present accident and construction information, falling object information, emergency evacuation information, etc. to other vehicles and pedestrians.
  • the automatic driving marker lamp unit 1018 and the automatic driving signal lamp unit 1020 are arranged vertically with a predetermined distance. As a result, it is possible to realize the vehicular lamp 1010 that can display the automatic driving and can communicate with the people around the vehicle.
  • the automatic driving marker lamp unit 1018 is arranged at the upper side and the automatic driving signal lamp unit 1020 is arranged at the lower side.
  • the lamp unit 1020 may be arranged above, and the automatic driving marker lamp unit 1018 may be arranged below.
  • FIG. 15 is a rear view of a vehicle 1200 equipped with a vehicle lamp 1210 according to the third embodiment of the present invention.
  • This vehicle 1200 is a personally owned vehicle (POV) that supports level 3 autonomous driving.
  • PV personally owned vehicle
  • the vehicle lamp 1210 includes an automatic driving marker lamp unit 1218 that emits turquoise color light and a marker lamp unit 1220 that emits red light.
  • the marker lamp unit 1220 functions as a tail and stop lamp.
  • the present inventor has recognized the following problems in the process of developing the vehicle lamp 1210 including the automatic driving marker lamp unit 1218 and the marker lamp unit 1220. Since the turquoise color and the red color have a complementary color relationship, when the automatic driving marker lamp unit 1218 and the marker light unit 1220 are arranged adjacent to each other, the turquoise color light and the red light may be mixed to be recognized as white light. is there. This is not preferable because it may give erroneous recognition to pedestrians and drivers of other vehicles.
  • the automatic driving marker lamp unit 1218 and the marker lamp unit 1220 are arranged such that their light emitting areas are separated from each other by a predetermined distance D or more.
  • the predetermined distance D is a distance at which the turquoise light from the automatic driving marker lamp unit 1218 and the red light from the marker lamp unit 1220 are not erroneously recognized as white light, and can be appropriately set by experiments or simulations. As a result of examination by the present inventor, it was found that erroneous recognition of white light is unlikely to occur when the predetermined distance D is 100 mm or more.
  • the turquoise color light is generated by separating the light emitting area of the automatic driving marker lamp unit 1218 from the light emitting area of the marker lamp unit 1220 by a predetermined distance D or more. Since it is possible to prevent the red light from being erroneously recognized as white light, it is possible to improve safety.
  • level 5 fully automatic driving, the system recognizes traffic conditions without restrictions on location and performs all driving-related operations.
  • a vehicle without a driver's seat has been proposed because the driver does not have to drive.
  • the concept of front and rear of the vehicle disappears, and it is assumed that the traveling direction switches depending on the surrounding situation.
  • Conventional headlamps and rear lamps are designed to illuminate one of the front and rear directions of the vehicle, so it is difficult to support such a fully autonomous vehicle. Therefore, the present inventor has invented a vehicular lamp suitable for an autonomous vehicle.
  • FIG. 16 is a schematic vertical sectional view for explaining the configuration of the irradiation light color variable lamp unit 1026.
  • each irradiation light color variable lamp unit 1026 can emit either white light to be emitted in the vehicle traveling direction or red light to be emitted in the opposite direction to the vehicle traveling direction.
  • the white light to be emitted in the traveling direction of the vehicle is light of a color and intensity that meets the regulations required for ordinary headlamps.
  • the red light to be emitted in the direction opposite to the traveling direction of the vehicle is light of a color and intensity that meets the regulations required for ordinary rear lamps.
  • the irradiation light color variable lamp unit 1026 includes a white light source unit 1034 that can emit white light, a light color conversion member 1036 that converts white light into red light, and a light color conversion member 1036 that is movable with respect to the white light source unit 1034.
  • the white light source unit 1034 includes a white LED 1040 and an inner lens 1042 that controls light from the white LED 1040.
  • the movable mechanism 1038 includes a rotation shaft 1043 of the light color conversion member 1036 and an actuator (not shown) that rotates the light color conversion member 1036 by 90° around the rotation shaft 1043. Due to the movable mechanism 1038, the light color conversion member 1036 is moved to a position on the light irradiation path of the white light source unit 1034 (shown by a solid line in FIG. 16) and a position retracted from the light irradiation path of the white light source unit 1034 (broken line in FIG. 16). (Shown in FIG. 2) can be used.
  • the movable mechanism 1038 rotates the light color conversion member 1036 based on the information on the vehicle traveling direction from the ECU of the vehicle 1100. For example, when the traveling direction of the vehicle 1100 is the front side, the movable mechanism 1038 retracts the light color conversion member 1036 from the light irradiation path of the white light source unit 1034. As a result, white light can be emitted in front of the vehicular lamp 1010. On the other hand, when the traveling direction of the vehicle 1100 is the rear side, the movable mechanism 1038 positions the light color conversion member 1036 on the light irradiation path of the white light source unit 1034. As a result, the white light from the white light source unit 1034 is converted into red light by the light color conversion member 1036, so that the red light can be emitted to the front of the vehicular lamp 1010.
  • FIG. 17 is a schematic vertical sectional view for explaining a modified example of the irradiation light color variable lamp unit 1026.
  • the light color conversion member 1036 is configured to slide in the vertical direction with respect to the white light source unit 1034.
  • the slide mechanism (not shown), the light color conversion member 1036 is moved to a position on the light irradiation path of the white light source unit 1034 (shown by a solid line in FIG. 17) and a position retracted from the light irradiation path of the white light source unit 1034 ( 17 is shown by a broken line).
  • the light color conversion member 1036 may be configured to slide in the horizontal direction with respect to the white light source unit 1034.
  • FIG. 18 is a schematic vertical sectional view for explaining a further modified example of the irradiation light color variable lamp unit 1026.
  • the irradiation light color variable lamp unit 1026 includes a white light source unit 1034 capable of emitting white light, a red light source unit 1044 capable of emitting red light, and a white light source unit 1034 and a red light source unit 1044 that are movable. And a movable mechanism for irradiating the front of the lamp with either white light or red light.
  • the red light source unit 1044 includes a red LED 1046 and an inner lens 1048 that controls light from the red LED 1046.
  • the white light source unit 1034 and the red light source unit 1044 are combined so as to emit light in opposite directions.
  • the movable mechanism includes a rotating shaft 1050 provided at the center of the white light source unit 1034 and the red light source unit 1044, and an actuator (not shown) that rotates the white light source unit 1034 and the red light source unit 1044 around the rotating shaft 1050. ..
  • the irradiation light color variable lamp unit 1026 takes one of a state in which the white light source unit 1034 can emit white light in front of the lamp and a state in which the red light source unit 1044 can emit red light in front of the lamp. be able to.
  • FIG. 19 is a schematic vertical sectional view for explaining a further modified example of the irradiation light color variable lamp unit 1026.
  • the white light source unit 1034 and the red light source unit 1044 are both arranged in a vertical direction so that light can be emitted to the front of the lamp.
  • the movable mechanism is configured to slide the white light source unit 1034 and the red light source unit 1044 in the vertical direction.
  • the slide mechanism (not shown), in the irradiation light color variable lamp unit 1026, the white light source unit 1034 can irradiate white light to the front of the lamp and the red light source unit 1044 can irradiate red light to the front of the lamp. You can take either.
  • the white light source unit 1034 and the red light source unit 1044 may be configured to slide in the horizontal direction.
  • FIG. 20 is a schematic horizontal sectional view for explaining a further modified example of the irradiation light color variable lamp unit 1026.
  • the irradiation light color variable lamp unit 1026 includes a white LED 1054 capable of emitting white light, a red LED 1056 capable of emitting red light, a common substrate 1052 on which the white LED 1054 and the red LED 1056 are mounted, and a white color.
  • a common inner lens 1058 arranged in front of the LED 1054 and the red LED 1056.
  • either the white LED 1054 or the red LED 1056 is turned on by the control circuit according to the traveling direction of the vehicle.
  • the white LED 1054 is turned on, white light is emitted to the front of the lamp through the inner lens 1058.
  • red LED 1056 is turned on, red light is emitted to the front of the lamp through the inner lens 1058.
  • either the white light or the red light can be emitted to the front of the lamp according to the traveling direction of the vehicle. It is possible to realize a vehicular lamp suitable for a fully self-driving vehicle in which the traveling direction is switched according to.
  • the present invention relates to a vehicle lamp mounted on an autonomous vehicle.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

La présente invention concerne une lumière de véhicule (10) qui est pourvue : d'une caméra (24) pour détecter qu'un occupant est à proximité d'un véhicule ; et d'une unité lumineuse d'application sur surface de route (22) pour appliquer un motif séquentiel sur une surface de route à proximité du véhicule lorsque l'occupant est détecté par la caméra (24). La lumière de véhicule (10) est en outre pourvue d'une unité lumineuse (20) pour un marqueur de conduite automatique qui informe l'environnement que le véhicule est en conduite automatique, l'unité lumineuse (20) pour un marqueur de conduite automatique émettant séquentiellement de la lumière en association avec l'unité lumineuse d'application sur surface de route (22).
PCT/JP2019/047877 2018-12-28 2019-12-06 Lumière de véhicule WO2020137455A1 (fr)

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CN201980087010.4A CN113226848A (zh) 2018-12-28 2019-12-06 车辆用灯具
JP2020563020A JP7422088B2 (ja) 2018-12-28 2019-12-06 車両用灯具

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JP2000025520A (ja) * 1998-07-08 2000-01-25 Sanetoshi Maekawa 自動車の照明装置
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