CN113226848A - Vehicle lamp - Google Patents

Vehicle lamp Download PDF

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Publication number
CN113226848A
CN113226848A CN201980087010.4A CN201980087010A CN113226848A CN 113226848 A CN113226848 A CN 113226848A CN 201980087010 A CN201980087010 A CN 201980087010A CN 113226848 A CN113226848 A CN 113226848A
Authority
CN
China
Prior art keywords
lamp
vehicle
unit
lamp unit
automatic driving
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201980087010.4A
Other languages
Chinese (zh)
Inventor
手冢伸孝
井上拓纪
绵野裕一
渡边重之
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koito Manufacturing Co Ltd
Original Assignee
Koito Manufacturing Co Ltd
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 Koito Manufacturing Co Ltd filed Critical Koito Manufacturing Co Ltd
Publication of CN113226848A publication Critical patent/CN113226848A/en
Pending legal-status Critical Current

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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

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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

A vehicle lamp (10) is provided with: a camera (24) that detects that an occupant is positioned around the vehicle; and a road surface drawing lamp unit (22) that draws a flow pattern on a road surface around the vehicle when the occupant is detected by the camera (24). The vehicle lamp (10) further includes an automatic driving sign lamp unit (20) for notifying the surroundings that the vehicle is in automatic driving, and the automatic driving sign lamp unit (20) is interlocked with the road surface drawing lamp unit (22) and sequentially emits light.

Description

Vehicle lamp
Technical Field
The present invention relates to a vehicle lamp mounted on an autonomous vehicle.
Background
Currently, research on the automatic driving technology of automobiles is prevalent in various countries, and the countries are studying legal revisions for enabling vehicles to travel on roads in an automatic driving mode. The automatic driving is defined to have a level of 0 to 5, and generally, a level of 3 or more is regarded as automatic driving. Level 3 is called conditional autonomous driving, and is operated by the system in a specific place and by the driver 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 full-automatic driving, and the system recognizes the traffic situation without restriction of the place and performs all operations related to driving.
[ Prior art documents ]
[ patent document ]
Patent document 1: international publication No. 2017/073634
Disclosure of Invention
[ problems to be solved by the invention ]
As a lamp suitable for such an autonomous vehicle, the present inventors invented a vehicle lamp that can communicate with a human, as well as irradiate light around the vehicle.
The present invention has been made in view of the above circumstances, and an object thereof is to provide a vehicle lamp that can communicate with a person.
[ means for solving the problems ]
In order to solve the above problem, a vehicle lamp according to an aspect of the present invention includes: a sensor device that detects that an occupant is positioned around the vehicle; and a road surface drawing lamp unit that draws a flow pattern on a road surface around the vehicle when the occupant is detected by the sensor device.
Another aspect of the present invention is also a vehicular lamp. The vehicular lamp includes: an automatic driving sign lamp unit that emits light during automatic driving of the vehicle; and a lamp unit for an automatic driving signal, which can change a light emission mode based on information around the vehicle.
Another aspect of the present invention is also a vehicular lamp. The vehicular lamp includes: a lamp unit for automatic driving mark emitting cyan light; and an identification lamp unit emitting red light. The lamp unit for an automatic driving sign and the marker lamp unit are arranged so that their light emitting regions are separated by a predetermined distance or more.
Still another aspect of the present invention is also a vehicular lamp. The vehicle lamp includes a variable illumination color lamp unit that can illuminate either white light to be illuminated in a vehicle traveling direction or red light to be illuminated in a direction opposite to the vehicle traveling direction.
[ Effect of the invention ]
According to the present invention, a vehicle lamp that can communicate with a person can be provided.
Drawings
Fig. 1 is a schematic view showing a vehicle equipped with a vehicle lamp according to embodiment 1 of the present invention.
Fig. 2 is a schematic front view showing a portion a of the vehicle lamp shown in fig. 1.
Fig. 3 is a schematic sectional view B-B showing the vehicle lamp shown in fig. 2.
Fig. 4 is a schematic perspective view of the light emitting unit.
Fig. 5 is a functional block diagram for explaining the vehicular lamp according to embodiment 1 of the present invention.
Fig. 6 is a diagram showing an example of road surface tracing by the road surface tracing lamp unit.
Fig. 7 is a diagram showing another example of road surface tracing by the road surface tracing lamp unit.
Fig. 8 is a schematic view showing a part of the outer lens.
Fig. 9 is a schematic view of a boundary portion between the outer lens and the engine cover.
Fig. 10 is a side view of a vehicle equipped with the vehicle lamp according to embodiment 2 of the present invention.
Fig. 11 is a front view of a vehicle equipped with the vehicle lamp according to embodiment 2 of the present invention.
Fig. 12 is a schematic front view showing a part of the vehicle lamp.
Fig. 13 is a schematic sectional view a-a of the vehicular lamp shown in fig. 12.
Fig. 14 is a functional block diagram for explaining the vehicular lamp according to embodiment 2 of the present invention.
Fig. 15 is a rear view of a vehicle on which the vehicle lamp according to embodiment 3 of the present invention is mounted.
Fig. 16 is a schematic vertical sectional view for explaining the configuration of the illumination color variable lamp unit.
Fig. 17 is a schematic vertical sectional view for explaining a modification of the lighting color variable lamp unit.
Fig. 18 is a schematic vertical sectional view for explaining another modification of the illumination color variable lamp unit.
Fig. 19 is a schematic vertical sectional view for explaining another modification of the illumination color variable lamp unit.
Fig. 20 is a schematic horizontal cross-sectional view for explaining still another modification of the illumination color variable lamp unit.
Detailed Description
Hereinafter, a vehicle lamp according to an embodiment of the present invention will be described in detail with reference to the drawings. In addition, since the drawings are for the purpose of explaining the positional relationship of the respective members, the actual dimensional relationship of the respective members is not necessarily shown. In each embodiment, the same or corresponding components are denoted by the same reference numerals, and overlapping description thereof will be omitted as appropriate.
[ embodiment 1 ]
Fig. 1 is a schematic view showing a vehicle 100 on which a vehicle lamp 10 according to embodiment 1 of the present invention is mounted. The Vehicle 100 is a self-driven personal belonging Vehicle (POV) corresponding to level 3. The vehicle lamp 10 is a headlamp provided at the front of the vehicle 100.
Fig. 2 is a schematic front view showing a portion a (a portion facing the left side of the vehicle from the center) of the vehicle lamp 10 shown in fig. 1. The vehicular lamp 10 includes: a lamp body 12 and a transparent outer lens 14 disposed on the front side of the lamp body 12. The lamp body 12 and the outer lens 14 form a lamp chamber.
A lamp unit and a sensor device for detecting information around a vehicle are disposed in a lamp room. The lamp unit includes: a headlight unit 16 capable of emitting high beam and low beam, a turn signal lamp 18, an Automatic Driving (AD) sign lamp unit 20 for notifying surroundings that the vehicle is in automatic Driving, and a road surface drawing lamp unit 22. The headlight unit 16 or the turn signal lamp 18 may use an LED. The road-tracing lamp unit 22 may be a Digital Micromirror Device (DMD). The sensor means include a camera 24, a millimeter wave radar 26, and a LiDAR (laser radar) 28. The vehicle lamp 10 according to embodiment 1 is a lamp in which the plurality of lamp units and the plurality of sensor devices are integrally assembled in a lamp chamber. In an autonomous vehicle, it is necessary to appropriately recognize a moving object around the vehicle and a surrounding environment such as a road shape. In addition, it is also necessary to notify the surroundings of the function of the autonomous vehicle. According to the vehicle lamp 10 of embodiment 1, the vehicle lamp suitable for the automatically driven vehicle can be realized by integrally assembling the lamp unit 20 for the automatic driving sign and various sensor devices in addition to the headlamp unit 16 for irradiating the low beam and the high beam.
In embodiment 1, as shown in fig. 2, the automatic driving sign lamp unit 20 is disposed so as to extend in a straight line in the vehicle width direction, and the LiDAR28, the millimeter-wave radar 26, the road surface drawing lamp unit 22, and the headlamp unit 16 are disposed below the automatic driving sign lamp unit 20 in this order from the center toward the left side of the vehicle. Further, a camera 24 is disposed below the road surface drawing lamp unit 22, and a turn signal lamp 18 is disposed below the headlight unit 16. The same applies to the vehicle from the center to the right side. However, these configurations are one example, and are not limited thereto.
Fig. 3 is a schematic sectional view B-B of the vehicular lamp 10 shown in fig. 2. As shown in fig. 3, a millimeter-wave radar 26 is disposed in a lamp chamber formed by the lamp body 12 and the outer lens 14. The vehicle lamp 10 according to embodiment 1 includes a light guide 30 arranged to cover the front surface of the millimeter wave radar 26. The light guide unit 30 has a light incident portion 30a formed at an upper end thereof. Light leaked from the lamp unit 20 for an automatic driving mark or the road surface drawing lamp unit 22 enters the light guide from the light incident portion 30a, and the light guide 30 emits light. By covering the front surface of the millimeter wave radar 26 with the light guide 30 and emitting light in this way, the presence of the millimeter wave radar 26 can be hidden, and the appearance can be improved.
As shown in fig. 2, the lamp unit for automatic driving sign 20 includes a plurality of light emitting units 34. A plurality of light emitting units 34 are regularly arranged in the lamp chamber. Each light emitting unit 34 emits cyan 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 that emits light in a bluish green color provided in the base portion 36; and a lens unit 38 that controls light from the LED. The lens unit 38 includes a lens body 39 formed of a transparent member and a cyan plate-shaped lens portion 40 embedded in a part of the lens body 39. The lens body 39 and the plate-shaped lens portion 40 constitute a combined integral lens. By using such a lens unit 38, the lens unit 38 looks bluish green even when the LED is off, and therefore it is possible to notify the surroundings that the vehicle 100 is an autonomous vehicle.
Fig. 5 is a functional block diagram for explaining the vehicular lamp 10 according to embodiment 1 of the present invention. As shown in fig. 5, the vehicular lamp 10 includes, as a lamp unit: a headlamp unit 16, a turn signal lamp 18, an automatic driving sign lamp unit 20, and a road surface drawing lamp unit 22. Further, as the sensor device, the vehicle lamp 10 includes: millimeter-wave radar 26, camera 24, and LiDAR 28. Further, the vehicle lamp 10 includes a control device 42 connected to the lamp unit and the sensor device. The control device 42 may be disposed inside the lamp body 12 of the vehicle lamp 10, or may be disposed outside the lamp body 12.
As shown in fig. 5, control device 42 may be connected to an automatic driving control device 44 provided in vehicle 100. Control device 42 acquires information on whether or not vehicle 100 is under autonomous driving from autonomous driving control device 44, and causes lamp unit for an autonomous marker 20 to emit light in cyan while autonomous driving is being performed.
Camera 24 captures an image of the surroundings of the vehicle and transmits the captured image to control device 42. Control device 42 performs image recognition of the person around the vehicle based on the image captured by camera 24, and detects that the occupant registered in advance is located around the vehicle. Since the detection is performed using the image, the direction in which the occupant is present when viewed from the camera 24 can be detected. To improve the detection accuracy, the millimeter wave radar 26 or LiDAR28 may be used in addition to the camera 24.
Fig. 6 shows an example of road surface tracing by the road surface tracing lamp unit 22. Fig. 6 shows a situation in which the occupant 60 is facing the vehicle 100 staying in the parking lot. When the occupant 60 is detected around the vehicle 100, the control device 42 controls the road surface drawing lamp unit 22 to draw the flow pattern 62 on the road surface around the vehicle toward the direction in which the detected occupant 60 is present. The flow pattern is an illumination pattern that lights up in a chain, and is, for example, a pattern that is drawn on a road surface continuously from a position near the occupant 60 toward the vehicle 100. By depicting such a flow pattern, a "check-up" (おもてなし) demonstration can be made of the occupant 60 returning to the vehicle 100. According to the vehicle lamp 10 of embodiment 1, communication with the occupant is enabled by this.
Further, the control device 24 may cause another lamp unit different from the road surface drawing lamp unit 22, for example, the automatic driving sign lamp unit 20 to emit light in a flowing manner in conjunction with the road surface drawing lamp unit 22. Since the road surface drawing lamp unit 22 has the plurality of light emitting units 34 that emit light in cyan, it is possible to perform new floating light emission, and thus it is possible to make a more impressive "fashion" presentation to the occupant 60. The "lamp unit for automatic driving sign 20 is interlocked with the road surface drawing lamp unit 22", and the flow light emission of the lamp unit for automatic driving sign 20 may be started after the road surface drawing of the flow pattern by the road surface drawing lamp unit 22 is completed, for example. Alternatively, the flow light emission of the lamp unit for automatic driving sign 20 may be performed during the drawing of the flow pattern by the road surface drawing lamp unit 22.
The headlight unit 16 and the winker 18 may be caused to emit light in a flow-linked manner with the road surface drawing lamp unit 22 in addition to the road surface drawing lamp unit 22 or instead of the road surface drawing lamp unit 22.
Fig. 7 shows another example of road surface tracing by the road surface tracing lamp unit 22. Fig. 7 shows a situation in which no occupant is present around the vehicle 100. When the occupant 60 is not detected around the vehicle 100, the control device 42 controls the road surface drawing lamp unit 22 to draw the flow pattern 64 on the illuminable region around the vehicle. By drawing the flow pattern on the road surface, the "fashion" can be displayed to the people around the vehicle.
Fig. 8 is a schematic diagram showing a part of the outer lens 14. The outer lens 14 includes an outer lens 14a for an automatic driving sign lamp unit 20, a headlamp unit 16, a turn signal lamp 18, and an outer lens 14b for a road surface drawing lamp unit 22. In embodiment 1, the outer lenses 14a and 14b are formed of a resin member integrally with the front panel 80 and the engine cover 82. By using such an integrally molded product of resin members, the vehicle 100 can be reduced in weight.
Fig. 9 is a schematic view of a boundary portion between the outer lens 14a and the engine cover 82. The outer lenses 14a and 14b are transparent, and the engine cover 82 and the front panel 80 are colored. Therefore, boundary lines (boundary lines) are formed at the boundary portion between the outer lens 14a and the engine cover 82 (portion C in fig. 8) and at the boundary portion between the outer lens 14b and the front panel 80 (portion D in fig. 8). In embodiment 1, as shown in fig. 8, the border line is made less conspicuous by providing gradation in coloring of the border portion. This makes it possible to achieve a novel design that improves the sense of integration of the vehicle lamp 10 and the vehicle body of the vehicle 100.
Returning to fig. 1, in vehicle 100 according to embodiment 1, linear light guide 106 is disposed at a boundary portion between vehicle body 102 and side window 104. The light guide 106 is configured to emit light in cyan. By disposing such a light guide 106, it is possible to notify the side of the vehicle 100 that the vehicle 100 is automatically driving, and safety can be improved.
[ 2 nd embodiment ]
In an autonomous vehicle, a lamp (referred to as an "indicator lamp for autonomous driving") for notifying surroundings that the vehicle is autonomously driven needs to be installed, and standard production is currently in progress. Under such circumstances, the present inventors have invented a vehicle lamp that can communicate with a passenger or a person around a vehicle while displaying that the vehicle is being driven automatically.
The 2 nd embodiment has been made in view of the above circumstances, and an object thereof is to provide a vehicle lamp that performs display during automatic driving and is capable of communicating with people around the vehicle.
Fig. 10 is a side view of a vehicle 1100 mounted with a vehicle lamp 1010 according to embodiment 2 of the present invention. Fig. 11 is a front view of a vehicle 1100 on which a vehicle lamp 1010 according to embodiment 2 of the present invention is mounted.
The vehicle 1100 is a fully autonomous vehicle corresponding to level 5 and has no driver seat. The vehicle 1100 is substantially symmetrical in the longitudinal direction of the vehicle (the direction perpendicular to the vehicle width direction, hereinafter referred to as "vehicle length direction" as appropriate), and is movable in both directions of the vehicle length direction. For convenience, one side in the vehicle length direction (left side in fig. 10) is set as a front side, and the other side in the vehicle length direction (right side in fig. 10) is set as a rear side. Vehicle 1100 includes a passenger boarding and alighting unit 1102, tires 1104, and the like.
As shown in fig. 10, a vehicle lamp 1010 is disposed on the front side of a vehicle 1100, and a vehicle lamp 1011 is disposed on the rear side. Since the vehicle lamps 1010 and 1011 have substantially the same configuration and function, the vehicle lamp 1010 disposed on the front surface 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 sectional view a-a of the vehicular lamp 1010 shown in fig. 12. The vehicle lamp 1010 includes a lamp body 1012 and a transparent outer lens 1014 disposed on the lamp front side of the lamp body 1012. The lamp body 1012 and the outer lens 1014 form a lamp chamber.
A plurality of lamp units are arranged in lamp chamber 1016. In the vehicle lamp 1010 according to embodiment 2, the lamp unit is arranged to have a substantially rectangular shape in front view.
A lamp unit 1018 for an Automated Driving (AD) sign is disposed at a position on the upper side of the quadrangle extending in the substantially horizontal direction. The lamp unit for automated driving sign 1018 is a lamp for notifying surroundings that the vehicle is in automated driving, and emits bluish green light all the time while the vehicle is in automated driving.
Further, at a position on a lower side of a quadrangle extending in a substantially horizontal direction, an Automatic Driving (AD) signal lamp unit 1020 is disposed. That is, the lamp unit 1020 for an automatic driving signal is disposed at a predetermined distance from the lamp unit 1018 for an automatic driving sign. This is to facilitate recognition of the light emission state of the lamp unit 1018 for the automatic driving sign and the light emission state of the lamp unit 1020 for the automatic driving signal. The lamp unit 1020 for an automated driving signal is a lamp for presenting an exchange such as a concession and a start to a pedestrian or the like by an automated driving vehicle, and can change a light emission pattern based on information around the vehicle.
Each of the lamp unit for automatic driving sign 1018 and the lamp unit for automatic driving signal 1020 includes a plurality of LEDs 1022 emitting light in cyan and a transparent inner lens 1024, and emits light in cyan. Alternatively, the LED may be configured to emit light of cyan color using a white LED and an inner lens of cyan color.
At the left and right sides of the quadrangle extending in the substantially vertical direction, 3 lighting color variable lighting units 1026 and 3 lighting unit 1020 for an automatic driving signal are arranged alternately in the vertical direction. Millimeter wave radar 1028 for detecting a pedestrian or the like is arranged below these lamp units, light guide 1030 arranged so as to cover the front surface of millimeter wave radar 1028, and light source 1032 for supplying light into light guide 1030. In this way, by covering the front surface of millimeter wave radar 1028 with light guide body 1030 and emitting light, the presence of millimeter wave radar 1028 can be hidden, and the appearance can be improved.
The illumination color variable lamp unit 1026 is configured to be capable of illuminating either white light to be illuminated in the vehicle traveling direction or red light to be illuminated in the direction opposite to the vehicle traveling direction. The white light to be irradiated in the traveling direction of the vehicle is light having a color and intensity that satisfy the regulations required for a general headlamp. The red light to be irradiated in the direction opposite to the traveling direction of the vehicle is light having a color and intensity that satisfy the regulations required for a general backlight. Since the lighting color variable lamp unit 1026 can emit either white light or red light to the front of the lamp in accordance with the traveling direction of the vehicle, the present invention is suitable for a fully automatic driving vehicle in which the traveling direction is switched in accordance with the surrounding situation.
As shown in fig. 12, a display device 1060 is disposed inside the plurality of lamp units disposed in a substantially rectangular shape. The state information of the vehicle 1100 is displayed on the display device 1060. The display device 1060 may be a thin display, and is not particularly limited, and an organic EL display or a liquid crystal display can be preferably used.
Fig. 14 is a functional block diagram for explaining a vehicle lamp 1010 according to embodiment 2 of the present invention. As shown in fig. 13, the vehicle lamp 1010 includes: millimeter wave radar 1028, an automatic driving sign lamp unit 1018, an automatic driving signal lamp unit 1020, a display device 1060, and a control device 1040 as sensor devices that detect information around the vehicle. The controller 1040 may be disposed inside the lamp body 1012 of the vehicle lamp 1010, or may be disposed outside the lamp body 1012.
Information detected by the millimeter wave radar 1028 is transmitted to the control device 1040. The control device 1040 detects a person from the information from the millimeter wave radar 1028.
As shown in fig. 14, control device 1040 may be connected to an automatic driving control device 1041 included in vehicle 1100. Control device 1040 acquires information on whether or not vehicle 1100 is under autonomous driving from autonomous driving control device 1041, and causes lamp unit for autonomous driving flag 1018 to emit light at all times while autonomous driving is being performed.
Further, control device 1040 controls the light emission mode of lamp unit for autopilot 1020 based on information on the vehicle periphery detected by millimeter wave radar 1028. For example, when a pedestrian is detected and stopped, the lamp unit 1020 for an automatic driving signal is continuously turned on from one end portion to the other end portion, thereby giving an indication of concessional to the pedestrian. According to embodiment 2, communication with pedestrians and the like around the vehicle is enabled by this.
Further, the control device 1040 controls the display of the display device 1060. For example, the control device 1040 may be interlocked with a tail lamp or a stop lamp, and display for assisting these lamps may be performed on the display device 1060. The information on the turning on/off of the tail lamp or the stop lamp may be acquired from automatic drive control device 1041. For example, the display device 1060 emits red light in conjunction with a stop lamp, thereby enhancing the attention of pedestrians and other vehicles.
Further, when it is detected by millimeter wave radar 1028 that a pedestrian approaches within a predetermined distance, controller 1040 may increase the light emission intensity of display 1060 or change the light emission color. This enables the pedestrian to recognize that the vehicle is approaching.
Note that control device 1040 may display a graphic or a character on display device 1060 in order to provide the pedestrian or another vehicle with the vehicle state information, instead of causing display device 1060 to emit light. For example, characters or icons can be displayed on the display device 1060 to present accident or construction information, falling object information, emergency evacuation information, and the like to other vehicles or pedestrians.
As described above, in the vehicle lamp 1010 according to embodiment 2, the lamp unit 1018 for the automatic driving mark and the lamp unit 1020 for the automatic driving signal are vertically arranged at a predetermined distance from each other. Thus, the vehicle lamp 1010 can be realized that can communicate with people around the vehicle while performing display during automatic driving.
In embodiment 2 described above, as shown in fig. 12, the lamp unit 1018 for the automatic driving sign is disposed above and the lamp unit 1020 for the automatic driving signal is disposed below, or conversely, the lamp unit 1020 for the automatic driving signal may be disposed above and the lamp unit 1018 for the automatic driving sign may be disposed below.
[ embodiment 3 ]
Fig. 15 is a rear view of a vehicle 1200 mounted with a vehicle lamp 1210 according to embodiment 3 of the present invention. The Vehicle 1200 is a self-driven personal belonging (POV) corresponding to level 3.
The vehicle lamp 1210 includes an automatic driving sign lamp unit 1218 that emits cyan light, and an identification lamp unit 1220 that emits red light. The marker lamp unit 1220 functions as a tail lamp & stop lamp.
The present inventors have come to recognize the following problems in developing a vehicle lamp 1210 including an automatic driving sign lamp unit 1218 and a marker lamp unit 1220. Since cyan and red are in a complementary color relationship, when the lamp unit 1218 for an automatic driving sign and the marker lamp unit 1220 are disposed adjacent to each other, cyan and red light may be mixed and recognized as white light. This is not preferable because it may cause a false recognition of the pedestrian or the driver of another vehicle.
Therefore, in embodiment 3, the lamp unit 1218 for an automatic driving marker and the marker lamp unit 1220 are arranged so that their light emitting regions are separated by a predetermined distance D or more. The predetermined distance D is a distance between the cyan light from the lamp unit 1218 for an automatic driving marker and the red light from the marker lamp unit 1220, which is not recognized as the white light by mistake, and can be set as appropriate by experiments, simulations, and the like. The present inventors have studied and found that if the predetermined distance D is 100mm or more, it is difficult to cause erroneous recognition of white light.
As described above, according to the vehicle lamp 1210 of embodiment 3, by separating the light emitting region of the lamp unit for automatic driving marker 1218 from the light emitting region of the marker lamp unit 1220 by the predetermined distance D or more, it is possible to prevent a situation in which the cyan light and the red light are erroneously recognized as the white light, and therefore, it is possible to improve safety.
As described above, the full-automatic driving at level 5 is the automatic driving in which the system recognizes the traffic condition without being restricted by the place and performs all the operations related to the driving. Since the driver does not need to drive at all, a vehicle excluding the driver's seat has been proposed. In a fully autonomous vehicle without a driver's seat, it is assumed that the vehicle does not have a concept of front-rear, and the traveling direction is switched according to the surrounding situation. Since the conventional headlights and tail lamps are designed to illuminate one side of the vehicle in the front-rear direction, it is difficult to cope with such a fully autonomous vehicle. Accordingly, the present inventors have invented a vehicle lamp suitable for an autonomous vehicle.
Fig. 16 is a schematic vertical sectional view for explaining the configuration of the illumination color variable lamp unit 1026. As described above, each of the illumination color variable lamp units 1026 can illuminate either white light to be illuminated in the vehicle traveling direction or red light to be illuminated in the direction opposite to the vehicle traveling direction. The white light to be irradiated in the traveling direction of the vehicle is light having a color and intensity that satisfy the regulations required for a general headlamp. The red light to be irradiated in the direction opposite to the traveling direction of the vehicle is light having a color and intensity that satisfy the regulations required for a general backlight.
The illumination color variable lamp unit 1026 includes: a white light source unit 1034 capable of irradiating white light; a light color conversion member 1036 capable of converting white light into red light; and a movable mechanism 1038 that moves the color conversion member 1036 relative to the white light source unit 1034 to irradiate one of the white light and the red light to the front of the lamp.
The white light source unit 1034 includes a white LED1040 and an inner lens 1042 that controls light from the white LED 1040. The movable mechanism 1038 includes a rotation shaft 1043 of the color conversion member 1036 and an actuator (not shown) for rotating the color conversion member 1036 by 90 ° around the rotation shaft 1043. By the movable mechanism 1038, the light color conversion member 1036 can select either a position on the light irradiation path of the white light source unit 1034 (illustrated by a solid line in fig. 16) or a position avoiding the light irradiation path of the white light source unit 1034 (illustrated by a broken line in fig. 16).
The movable mechanism 1038 rotates the light color conversion member 1036 based on information of the vehicle traveling direction from the ECU of the vehicle 1100. For example, in the case where the traveling direction of the vehicle 1100 is the front side, the movable mechanism 1038 retracts the color conversion member 1036 from the light irradiation path of the white light source unit 1034. This allows white light to be emitted to the front of the vehicle 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. Thus, the white light from the white light source unit 1034 is converted into red light by the light color conversion member 1036, and thus the red light can be irradiated to the front of the vehicle lamp 1010.
Fig. 17 is a schematic vertical cross-sectional view for explaining a modification of the illumination color variable lamp unit 1026. In the present modification, the light color conversion member 1036 is configured to slide in the vertical direction with respect to the white light source unit 1034. The light color conversion member 1036 can select, by a slide mechanism (not shown), either a position on the light irradiation path of the white light source unit 1034 (shown by a solid line in fig. 17) or a position retracted from the light irradiation path of the white light source unit 1034 (shown by a broken line in fig. 17). Further, the light color conversion member 1036 may also be configured to slide in a horizontal direction with respect to the white light source unit 1034.
Fig. 18 is a schematic vertical sectional view for explaining another modification of the illumination color variable lamp unit 1026. In the present modification, the illumination color variable lamp unit 1026 includes: a white light source unit 1034 capable of irradiating white light; a red light source unit 1044 capable of irradiating red light; and a movable mechanism that moves the white light source unit 1034 and the red light source unit 1044 to irradiate either one of white light and red light toward the front of the lamp.
The red light source unit 1044 includes a red LED1046 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 to irradiate light in mutually opposite directions. The movable mechanism includes a rotation 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 rotation shaft 1050. By the movable mechanism, the lighting color variable lamp unit 1026 can select either a state in which the white light source unit 1034 can illuminate white light to the front of the lamp or a state in which the red light source unit 1044 can illuminate red light to the front of the lamp.
Fig. 19 is a schematic vertical sectional view for explaining another modification of the illumination color variable lamp unit 1026. In the present modification, the white light source unit 1034 and the red light source unit 1044 are arranged in the vertical direction in such a direction that light can be irradiated forward of the lamp. In the present modification, 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 lighting color variable lamp unit 1026 can select, by a slide mechanism (not shown), either a state in which the white light source unit 1034 can illuminate white light to the front of the lamp or a state in which the red light source unit 1044 can illuminate red light to the front of the lamp. 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 cross-sectional view for explaining still another modification of the illumination color variable lamp unit 1026. In the present modification, the illumination color variable lamp unit 1026 includes: a white LED1054 capable of emitting white light; a red LED1056 capable of emitting red light; a common substrate 1052 on which the white LED1054 and the red LED1056 are mounted; and a common inner lens 1058 disposed on the front surfaces of the white LED1054 and the red LED 1056.
In the case of the illumination color variable lamp unit 1026 according to the present modification, either one of the white LED1054 and the red LED1056 is turned on by the control circuit in accordance with the traveling direction of the vehicle. When the white LED1054 is turned on, white light is emitted to the front of the lamp via the inner lens 1058. On the other hand, when the red LED1056 is turned on, red light is emitted to the front of the lamp via the inner lens 1058.
As described above, according to the illumination color variable lamp unit 1026 of the present embodiment, since either one of white light and red light can be illuminated toward the front of the lamp in accordance with the traveling direction of the vehicle, it is possible to realize a vehicle lamp suitable for a fully autonomous vehicle in which the traveling direction is switched in accordance with the surrounding situation.
The present invention has been described above based on the embodiments. It should be understood by those skilled in the art that these embodiments are illustrative, and various modifications are possible in combination of the respective constituent elements and the respective processing steps, and such modifications are also within the scope of the present invention.
[ Industrial availability ]
The present invention relates to a vehicle lamp mounted on an autonomous vehicle.
[ description of reference numerals ]
10. 1010, 1011, 1210 vehicle lighting fixture, 12, 1012 lamp body, 16 headlight unit, 18 turn signal lamp, 20, 1018, 1218 automatic driving sign lighting fixture unit, 22 road surface drawing lighting fixture unit, 24 camera, 26, 1028 millimeter wave radar, 28LiDAR, 34 light emitting unit, 44, 1041 automatic driving control device, 100, 1100, 1200 vehicle, 1020 automatic driving signal lighting fixture unit, 1026 illumination color variable lighting fixture unit, 1034 white light source unit, 1036 color light conversion member, 1038 movable mechanism, 1044 red light source unit, 1060 display device, 1220 logo lamp unit.

Claims (14)

1. A lamp for a vehicle, characterized by comprising:
a sensor device for detecting that an occupant is located around the vehicle, an
A road surface drawing lamp unit that draws a flow pattern on a road surface around the vehicle when the occupant is detected by the sensor device.
2. A lamp for a vehicle as defined in claim 1,
and another lamp unit which emits light in conjunction with the road surface drawing lamp unit.
3. A lamp for a vehicle as claimed in claim 2,
the other lamp unit is an automatic driving sign lamp unit that notifies surroundings that the vehicle is in automatic driving.
4. A lamp for a vehicle as claimed in claim 2 or 3,
the other lamp unit is configured to emit light in a flow manner in conjunction with the road surface drawing lamp unit.
5. The vehicular lamp according to any one of claims 1 to 4,
the sensor device is configured to be able to detect a direction in which an occupant is present;
the road surface depicting the light fixture unit depicts a flow pattern towards the direction in which the detected occupant is present.
6. A lamp for a vehicle, characterized by comprising:
lamp unit for automatic driving sign that emits light during automatic driving of vehicle, and
the automatic driving signal lamp unit can change the light emitting mode based on the information around the vehicle.
7. A lamp for a vehicle as claimed in claim 6,
the lamp unit for an automatic driving signal is disposed at a predetermined distance from the lamp unit for an automatic driving sign.
8. A lamp for a vehicle as claimed in claim 6 or 7,
and a display device disposed between the lamp unit for an automatic driving sign and the lamp unit for an automatic driving signal.
9. A lamp for a vehicle, characterized by comprising:
lamp unit for automatic driving mark emitting bluish green light, and
an identification lamp unit emitting red light;
the lamp unit for an automatic driving sign and the marker lamp unit are arranged so that light emitting regions thereof are separated by a predetermined distance or more.
10. A lamp for a vehicle as defined in claim 9,
the predetermined distance is 100mm or more.
11. A lamp for a vehicle, characterized in that,
the lighting device includes a lighting color variable lamp unit capable of irradiating either white light to be irradiated in a vehicle traveling direction or red light to be irradiated in a direction opposite to the vehicle traveling direction.
12. A lamp for a vehicle as defined in claim 11,
the lighting color-variable lamp unit for irradiation is provided with:
a white light source unit capable of irradiating white light,
a light color conversion member capable of converting white light into red light, and
and a movable mechanism that moves the color conversion member relative to the white light source unit and irradiates either one of white light and red light to the front of the lamp.
13. A lamp for a vehicle as defined in claim 11,
the lighting color-variable lamp unit for irradiation is provided with:
a white light source unit capable of irradiating white light,
a red light source unit capable of emitting red light, and
and a movable mechanism which makes the white light source unit and the red light source unit movable and irradiates any one of white light and red light to the front of the lamp.
14. A lamp for a vehicle as defined in claim 11,
the lighting color-variable lamp unit for irradiation is provided with:
a white light source capable of emitting white light,
a red light source capable of emitting red light, an
And a control unit that turns on either the white light source or the red light source and irradiates either the white light or the red light to the front of the lamp.
CN201980087010.4A 2018-12-28 2019-12-06 Vehicle lamp Pending CN113226848A (en)

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JP2018247866 2018-12-28
JP2018247868 2018-12-28
JP2018-247866 2018-12-28
JP2018247869 2018-12-28
JP2018-247869 2018-12-28
JP2018-247868 2018-12-28
PCT/JP2019/047877 WO2020137455A1 (en) 2018-12-28 2019-12-06 Vehicular light

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