WO2019208365A1 - Dispositif d'affichage d'informations - Google Patents

Dispositif d'affichage d'informations Download PDF

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Publication number
WO2019208365A1
WO2019208365A1 PCT/JP2019/016500 JP2019016500W WO2019208365A1 WO 2019208365 A1 WO2019208365 A1 WO 2019208365A1 JP 2019016500 W JP2019016500 W JP 2019016500W WO 2019208365 A1 WO2019208365 A1 WO 2019208365A1
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WO
WIPO (PCT)
Prior art keywords
information
display device
information display
vehicle
hud
Prior art date
Application number
PCT/JP2019/016500
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English (en)
Japanese (ja)
Inventor
平田　浩二
谷津　雅彦
昭央 三沢
壮太 佐藤
Original Assignee
マクセル株式会社
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.)
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Publication date
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Publication of WO2019208365A1 publication Critical patent/WO2019208365A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays

Definitions

  • the present invention relates to an information display device for projecting an image on a windshield of a vehicle, on which a person such as an automobile, a train or an aircraft moves.
  • HUD head-up display
  • a virtual image is formed at a plurality of positions according to the driver's visual recognition position, that is, the distance at which the virtual image is formed is determined by the driver. It is required to be matched with the viewing position. For this reason, for example, as disclosed in Patent Document 2 below, there is an apparatus (so-called 3D map) that forms an image at a distance (far distance) and a vicinity (short distance) from the driver.
  • the navigation function for displaying the navigation information including the map and the driving route described above is not limited to the HUD device that is mounted in advance in the vehicle and used in, for example, a smartphone (hereinafter also simply referred to as “smartphone”). It can also be installed in a representative high-performance portable terminal device, and has been widely used in relation to user location information, traffic information, and the like during movement. Furthermore, as an example, a usage form in which the smartphone is used as a navigation device by arranging the smartphone between a steering wheel in front of the driver's seat and the window glass has been widely known.
  • the present invention takes into consideration the viewpoint movement of the driver, and the video display apparatus capable of displaying the navigation information of the smartphone to the driver without leaving the viewpoint movement largely away from the road surface to be viewed.
  • the purpose is to provide.
  • An example of the present invention is an information display device for displaying video information on a vehicle, comprising an HUD device disposed between a windshield of the vehicle and an instrument panel of the vehicle,
  • the HUD device includes a virtual image optical system that displays a virtual image of the video information in front of the vehicle by reflecting light emitted from the HUD device that displays the video information on the windshield, and the information display device.
  • Navigation information input means for inputting navigation information including a map from a separate mobile terminal device, displaying the navigation information from the mobile terminal device as a virtual image in front of the vehicle, An image corresponding to the distant view of the real scene seen by the driver is displayed at the top of the display area, and a close-up view is displayed at the bottom of the display area. It is configured to display the response to image information display apparatus is provided.
  • the navigation information of the smartphone achieves a practically excellent effect of providing a video display device that can be displayed to the driver without moving the driver's viewpoint greatly away from the road surface. It becomes possible to do.
  • FIG. 1A is a top view of an automobile (vehicle) equipped with the information display device of the present invention, and a windshield as the projection member 6 exists in the front part of the driver seat of the automobile body 101.
  • the windshield has a different inclination angle with respect to the vehicle body depending on the type of automobile.
  • the inventors investigated the radius of curvature in order to realize an optimum virtual image optical system.
  • the windshield differs in a horizontal radius of curvature Rh parallel to the ground contact surface of the automobile and a vertical radius of curvature Rv perpendicular to the horizontal axis.
  • Rh and Rv generally have the following relationship. Rh> Rv
  • Rh relative to Rv is often in the range of 1.5 to 2.5 times.
  • the inventors investigated a commercial product for the inclination angle of the windshield. As a result, although it differs depending on the body type, it was 20 to 30 degrees for light cars and 1 Box type, 30 to 40 degrees for sedan type, and 40 degrees or more for sports type.
  • FIG. 2 shows an example of a smartphone 200 that is a high-performance portable terminal device equipped with means for providing navigation information in the information display device of the present invention, that is, a navigation function. Navigation information including routes and routes can be displayed. 2 indicates a push button for starting up the apparatus.
  • the smartphone 200 which is a high-performance portable terminal device, is equipped with a navigation function (possible) and transmits its display image signal via a wired connection terminal or Bluetooth (registered trademark). ) Or WiFi, etc., can be output to the outside (information display device (HUD device) described below).
  • FIG. 3 is a schematic view when the windshield 6 is viewed from the driver's seat of the automobile equipped with the information display device of the present invention.
  • FIG. 3 (a) shows the case of the left steering wheel represented by the United States.
  • FIG. 3B shows an example of the case of a right handle represented by Japan.
  • an HUD image display area (area) is provided in the vicinity of the left end (or the vicinity of the right end) of the windshield 6 on the front surface of the steering 43.
  • a user (driver) who uses a smartphone 200 which is a high-performance portable terminal device equipped with a navigation function, as a navigation device normally has the smartphone as shown in FIG. 200 in the vicinity of the left steering 43 (left side or right side: one is indicated by a broken line), and on the other hand, in the case of the right steering wheel, as shown in FIG. The operation is performed in the vicinity (right side or left side: one is indicated by a broken line).
  • fixing means such as a stand for housing the smartphone 200.
  • the HUD device displays the navigation information displayed on the display screen 210 of the smartphone 200 as an HUD image display area (area) for displaying various information as virtual images in front of the driver. ) Is used for display. More specifically, in the case of the left handle, the HUD device displays a virtual image of navigation information displayed on the display screen 210 of the smartphone 200 near the left side of the image display area (area) of the HUD, In the case of the right handle, the virtual image of the navigation information displayed on the display screen 210 of the smartphone 200 is displayed near the right side of the image display area (area) of the HUD.
  • the driver can confirm the navigation information necessary for driving not on the screen 210 of the smartphone 200 but on the image display area (area) of the HUD having a relatively large display area. it can. That is, it is possible to eliminate “smartphone (mobile)” that concentrates the consciousness on the display screen of the smartphone from the road, and to make the viewpoint movement from the road to the navigation information small and smooth.
  • the left handle does not disturb the view of the oncoming vehicle traveling on the left side, and the pedestrian jumps from the right side. There is no obstruction in view.
  • the right handle does not obstruct the field of view of the oncoming vehicle traveling on the right side, and does not obstruct the field of view of pedestrians flying from the left side.
  • the driver confirms the navigation information necessary for driving on the image display area (area) of the large HUD compared to the smartphone 200 having a relatively narrow display area
  • the driver can go to the screen of the smartphone 200.
  • This makes it possible to easily grasp the necessary information without concentrating the consciousness, and the burden on the driver can be greatly reduced. That is, the navigation information of the smartphone 200 is superimposed on the actual scene that the driver sees while driving by displaying the distant view information at the top and the near view information at the bottom of the screen using the image display area (area) of the HUD. This also enables safer driving while using the navigation function of the smartphone 200.
  • reference numeral 60 in FIG. 3 indicates a camera including, for example, an infrared camera, which is attached to a part of the steering 43, and here constitutes a means for detecting the driver's viewpoint. Visibility can be further improved by moving the video display position up and down or left and right and up and down and left and right using the result of detecting the viewpoint movement of the driver.
  • the viewpoint monitoring camera 60 that is the driver's viewpoint detection means does not necessarily have to be attached to a part of the steering as described above, and may be any device that can detect the driver's viewpoint. Or a part of the windshield 6 may be attached.
  • FIG. 4 is a block diagram and schematic configuration diagram showing the configuration of an information display apparatus according to an embodiment of the present invention and its peripheral devices.
  • a HUD that projects an image on a windshield of an automobile. The apparatus will be described.
  • the HUD device 1 forms a virtual image in front of the host vehicle at the driver's line of sight 8, but this virtual image may be formed at a preset single position, but in the present embodiment, the virtual image is three-dimensional.
  • virtual images V1 to V3 are formed at a plurality of positions, respectively. Therefore, it is a device (so-called 3D display HUD) that displays various information reflected by the projection member 6 (the windshield in the present embodiment) as a virtual image VI (virtual image).
  • Any information projection member may be used, and not only the windshield described above, but also a combiner, that is, in the information device 1 of the present embodiment, the driver's line of sight 8 is ahead of the host vehicle.
  • an alert display (information) that warns the presence of a pedestrian in front of the vehicle or the presence of a preceding vehicle is formed as a virtual image to be visually recognized by the driver by forming a virtual image at each of a plurality of positions in the vehicle.
  • vehicle information and foreground information captured by a camera such as a surveillance camera or an around viewer may be included.
  • the HUD device 1 includes an image projection device 11 that projects image light for displaying information, an intermediate image formation unit 4 that forms an image of light from the image projection device 11, and the intermediate image formation unit 4.
  • An optical component 5 that converges or diverges the image information (image light) that has been formed, and a control device 30 that controls the image projection device 11 are provided.
  • the optical component 5 is a virtual image optical system described below, and includes a concave mirror that reflects light. Further, the light reflected by the optical component 5 is reflected by the projection member 6 and travels toward the driver's line of sight 8 (EyeBox).
  • the intermediate image forming unit (or intermediate image display unit) 4 has a function of forming an image of light from the image projection device 11.
  • a microlens array in which microlenses are two-dimensionally arranged.
  • an optical element 21 and an optical element 22 are disposed between the intermediate image forming unit 4 and the optical component 5 including the concave reflecting mirror forming the eyepiece optical system.
  • the arrangement of the optical elements 21 and 22 is for the purpose of setting the virtual image forming positions at a plurality of locations in front of the host vehicle (three locations in FIG. 4).
  • aberration correction is performed between the intermediate image forming unit 4 and the optical component 5 forming the eyepiece optical system at a position where the image light from the intermediate image forming unit 4 is separated. To do. According to the aberration correction by these optical elements, even if virtual images are formed at different positions, a plurality of virtual images can be displayed at different magnifications by using the same virtual image optical system.
  • the optical element 21 corrects the aberration of the light beam forming the nearest virtual image V1 and the optical element 22 corrects the aberration of the intermediate virtual image V2.
  • the virtual image V3 formed at the farthest is optimally designed for aberration in the original virtual image optical system, no optical element is provided here, but it was optimally designed to further improve the aberration correction capability. It goes without saying that the provision of an optical element does not depart from the technical idea or scope of the present invention.
  • the virtual image V1 is displayed at a distance of 14 m or more in front of the vehicle
  • the virtual image V2 is displayed at a distance of 52 m or more
  • the virtual image V3 is displayed at a distance of 93 m or more.
  • a virtual image generation position is divided into a far virtual image V3, an intermediate virtual image V2, and a near virtual image V1, and the optical element 21 and the optical element 22 are provided individually, respectively.
  • the spatial optical distance is changed, more specifically, the thickness of the optical element in the vertical direction of the screen is changed.
  • Sufficient aberration correction capability is provided by changing the position where the virtual image is continuously generated to change the lens shape on both surfaces of the optical element to a decentered aspherical shape or a free-form surface shape.
  • the control device 30 includes a storage device 31 and a microcomputer (hereinafter referred to as “microcomputer”) 32.
  • the storage device 31 is a non-volatile storage device that can rewrite stored contents.
  • the microcomputer 32 includes a ROM 34 that stores processing programs and data that need to retain stored contents even when the power is turned off, a RAM 33 that temporarily stores processing programs and data, and processes stored in the ROM 34 and RAM 33. It is mainly configured by a computer having a CPU 35 that executes various processes according to a program.
  • the ROM 34 stores a processing program for the microcomputer 32 to execute information display processing for controlling the image projection device 11 so that various information such as vehicle information and foreground information is projected onto the projection target member 6.
  • the control device 30 includes, as a source of vehicle information and foreground information, at least a smartphone 200 that is a high-performance portable terminal device having a navigation function, and a driving support electronic control device (hereinafter referred to as “driving support ECU”). (Electronic Control Unit) 42) and the above-described viewpoint monitoring camera 60 are connected to each other by wire or wirelessly.
  • the smartphone 200 constituting the navigation system has a destination set according to the result of collation with the map data stored in the map data storage unit based on the current position detected by the built-in position detection device. It is a device to guide the route to.
  • the map data includes various types of information (so-called navigation information including maps and route information) such as information on road speed limits, the number of lanes, and intersections.
  • the control device 30 provides foreground information such as the speed limit of the road corresponding to the current position where the host vehicle is traveling, the number of lanes, the planned travel route of the host vehicle set in the navigation system, and the like from the smartphone 200. (That is, information displayed in front of the host vehicle by the virtual image).
  • the driving support ECU 62 is a control device that realizes driving support control by controlling the drive system and the control system in accordance with the obstacle detected as a result of monitoring by the periphery monitoring device 63, and cruise control is used as the driving support control. , Including well-known technologies such as adaptive cruise control, pre-crash safety, lane keeping assistance.
  • the periphery monitoring device 63 is a device that monitors the situation around the host vehicle.
  • a camera that detects an object around the host vehicle based on an image obtained by shooting the periphery of the host vehicle, an exploration wave, and the like.
  • An exploration device that detects an object that exists in the vicinity of the host vehicle based on the result of transmitting and receiving the vehicle.
  • the periphery monitoring device 63 may detect daylight or nighttime by detecting (sensing) external light with the above-described camera.
  • the control device 30 acquires such information from the driving support ECU 62 (for example, the distance to the preceding vehicle, the heading direction of the preceding vehicle, the position where the obstacle or sign is present, etc.) as the foreground information. Furthermore, an ignition (IG) signal and own vehicle state information are input to the control device 30. Among these pieces of information, the own vehicle state information is information acquired as vehicle information, and represents, for example, that a predetermined abnormal state such as the remaining amount of fuel in the internal combustion engine or the temperature of the cooling water has been entered. Contains warning information. Information such as the operation result of the direction indicator, the traveling speed of the host vehicle, and the shift position is also included. The control device 30 described above is activated when an ignition signal is input. The above is the description of the entire system of the information display apparatus according to the embodiment of the present invention.
  • the smartphone 200 equipped with a navigation function carried and used by the user is used as an information source of navigation information.
  • the user can set the navigation information of his / her smartphone 200 (for example, setting of a destination and a travel route) at a time and place other than when he / she is on the vehicle. Therefore, the convenience is further improved.
  • the above-described wireless LAN such as Bluetooth or WiFi as a method of transmitting navigation information from the smartphone 200
  • navigation information including a map displayed on the display screen 210 of the smartphone 200 is displayed in front of the host vehicle by using the HUD device 1. Displayed as a virtual image (see FIGS. 3 and 4). At that time, it is possible to display navigation information more natural for the driver by displaying the navigation information in the same direction as the traveling direction of the host vehicle.
  • the navigation information on the smartphone 200 is described as it is displayed on the image display area (area) of the HUD as it is (that is, at a ratio of 1: 1), but the present invention is limited to this.
  • the entire or part of the display area can be enlarged or reduced without being displayed.
  • FIG. 5A predictive danger information (alert display of a pedestrian or a preceding vehicle detected as a result of monitoring by the peripheral monitoring device 63) is added to the short-distance navigation information.
  • FIG. 5B shows an example of displaying high-precision 3D map information.
  • navigation information on the smartphone 200 using the image display area (area) of the HUD, in particular, navigation including 3D high-precision map information including height information and depth information. Since the information is larger than the display screen 210 of the smartphone 200 and can be displayed in the display area of the HUD including the 3D display function, more realistic 3D map information can be displayed.
  • the volume of the information display device increases as the viewing angle (horizontal (H), vertical (V)) of the HUD image display area (area) increases.
  • the set volume of the HUD exceeds 18 L due to the enlargement of the optical system including the concave mirror, and the front where the apparatus is mounted.
  • FIG. 7 and 8 show the configuration and arrangement (layout) of the HUD device 1 which is an information display device suitable for downsizing.
  • the HUD device 1 which is an information display device suitable for downsizing.
  • the group 2, the image display device 11, and the backlight light source 10 using light emitting diodes constituting the backlight as a light source are provided.
  • symbol 7 is a housing
  • the concave mirror 5a is rotationally driven, and in order to realize a farther virtual image distance, the optical means 3 is appropriately set.
  • the desired characteristics can be realized by such as.
  • the HUD image display area (area) may be enlarged by adding a second information display device that scans laser light onto the windshield with a MEMS element to obtain a real image.
  • the HUD device 100 having the configuration and arrangement described above, the increase in the device capacity accompanying the increase in the viewing angle of the HUD image display area (area) described above can be solved, and the HUD device can be mounted on the HUD device. It can be housed in the space between the windshield and the steering wheel.
  • the information display apparatus which consists of various embodiment of this invention was described.
  • the present invention is not limited to the above-described embodiments, and includes various modifications.
  • the above-described embodiment describes the entire system in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to the one having all the configurations described.
  • a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. .

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Instrument Panels (AREA)

Abstract

La présente invention concerne un dispositif d'affichage d'informations qui affiche des informations d'image dans un véhicule et comprend un dispositif d'affichage tête haute qui est disposé entre le pare-brise et le tableau de bord du véhicule. Le dispositif d'affichage tête haute comprend : un système optique d'image virtuelle pour réfléchir la lumière émise par le dispositif d'affichage tête haute affichant les informations d'image au moyen du pare-brise de sorte qu'une image virtuelle des informations d'image soit affichée dans une partie avant du véhicule ; et un moyen d'entrée d'informations de navigation pour entrer des informations de navigation comprenant une carte provenant d'un dispositif de terminal portable qui est séparé du dispositif d'affichage d'informations. Les informations de navigation provenant du dispositif terminal portable sont affichées sous la forme d'une image virtuelle dans la partie avant du véhicule, une image correspondant à une vue distante dans la scène réelle visualisée par un conducteur est affichée dans la partie supérieure de la zone d'affichage pour les informations d'image, et une image correspondant à une vue à courte distance est affichée dans la partie inférieure de la zone d'affichage.
PCT/JP2019/016500 2018-04-26 2019-04-17 Dispositif d'affichage d'informations WO2019208365A1 (fr)

Applications Claiming Priority (2)

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JP2018085110A JP2019189078A (ja) 2018-04-26 2018-04-26 情報表示装置
JP2018-085110 2018-04-26

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220234445A1 (en) * 2021-01-27 2022-07-28 Honda Motor Co., Ltd. Head-up display control system and head-up display display method
CN114816291A (zh) * 2021-01-27 2022-07-29 本田技研工业株式会社 抬头显示控制系统以及抬头显示的显示方法
CN115079424A (zh) * 2022-08-23 2022-09-20 泽景(西安)汽车电子有限责任公司 Hud图像显示方法、装置、终端、交通工具及存储介质

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JP2000241190A (ja) * 1999-02-24 2000-09-08 Aisin Aw Co Ltd 車両用情報表示装置及び該装置の記録媒体
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220234445A1 (en) * 2021-01-27 2022-07-28 Honda Motor Co., Ltd. Head-up display control system and head-up display display method
CN114816291A (zh) * 2021-01-27 2022-07-29 本田技研工业株式会社 抬头显示控制系统以及抬头显示的显示方法
US11865917B2 (en) * 2021-01-27 2024-01-09 Honda Motor Co., Ltd. Head-up display control system and head-up display display method
CN115079424A (zh) * 2022-08-23 2022-09-20 泽景(西安)汽车电子有限责任公司 Hud图像显示方法、装置、终端、交通工具及存储介质

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