WO2019176448A1 - Dispositif d'affichage d'informations - Google Patents

Dispositif d'affichage d'informations Download PDF

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Publication number
WO2019176448A1
WO2019176448A1 PCT/JP2019/005747 JP2019005747W WO2019176448A1 WO 2019176448 A1 WO2019176448 A1 WO 2019176448A1 JP 2019005747 W JP2019005747 W JP 2019005747W WO 2019176448 A1 WO2019176448 A1 WO 2019176448A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
information
display device
information display
hud
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.)
Ceased
Application number
PCT/JP2019/005747
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English (en)
Japanese (ja)
Inventor
平田　浩二
昭央 三沢
卓見 中田
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.)
Maxell Ltd
Original Assignee
Maxell 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 Maxell Ltd filed Critical Maxell Ltd
Publication of WO2019176448A1 publication Critical patent/WO2019176448A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
    • B60K35/23—Head-up displays [HUD]
    • B60K35/231—Head-up displays [HUD] characterised by their arrangement or structure for integration into vehicles
    • 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
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
    • B60K35/23—Head-up displays [HUD]
    • B60K35/235—Head-up displays [HUD] with means for detecting the driver's gaze direction or eye points
    • 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
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/28—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver
    • 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 so-called head-up display (HUD: Head) that projects image light on the windshield of a car to form a virtual image and displays traffic information such as route information and traffic jam information and car information such as fuel remaining amount and cooling water temperature -Up-Display) device is already known from, for example, Patent Document 1 below, and the HUD device main body is disposed between the steering in front of the driver's seat and the window glass, so that downsizing is desired.
  • 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, as disclosed in, for example, Patent Document 2 below, there is an apparatus that forms an image at a distance (far distance) and a vicinity (short distance) from the driver.
  • an object of the present invention is to provide a video display device capable of displaying information that makes the viewer's viewpoint movement more smooth in consideration of the relationship between the traveling speed of the vehicle and the stop distance.
  • the present invention is an information display device that displays video information on a vehicle, and is disposed between the windshield of the vehicle and the instrument panel of the vehicle.
  • 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 by the windshield.
  • an information display device having a system and configured to set the display position of the virtual image corresponding to the traveling speed of the vehicle.
  • the display of information in consideration of the relationship between the traveling speed of the vehicle and the stop distance reduces the driver's viewpoint movement, thereby enabling safer driving.
  • alert display information
  • information is information for warning the presence of a pedestrian in front of the vehicle or the preceding vehicle
  • FIG. 1 is a block diagram and schematic configuration diagram showing a peripheral device configuration of a HUD device according to an embodiment of the present invention.
  • FIG. 1A is a top view of an automobile equipped with the information display device of the present invention, and a windshield as a projection member 6 exists in the front part of the driver's 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.
  • 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. 2A 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. As shown in FIG. In the vicinity of the center portion, there is an enlarged HUD image display area (area). FIG. 2B shows the details of the image display area (area) of the HUD. As shown by the arrows in the figure, the image moves up and down according to the variation of the depression angle, and the horizontal width is changed to the viewing angle (horizontal). It moves according to the fluctuation of.
  • the depression angle is switched to 3.0 ° when traveling in an urban area of 30 to 60 km / h (urban area mode), and switched to 1.9 ° when traveling at a high speed of 60 to 100 km / h (high speed mode).
  • the viewing angle (horizontal) is 10 ° in the city mode and is narrowed to 9 ° in the high-speed mode.
  • the viewing angle (vertical) is constant at 2.2 °, for example.
  • the depression angle 1.9 °
  • the upper end 100 m forward of the vehicle and the lower end is 25 m.
  • the upper end portion is 25 m ahead of the vehicle and the lower end portion is 19 m. It should be noted that switching between the city mode and the high speed mode may be performed based on information from the navigation system described below.
  • FIG. 3 is a diagram for explaining setting conditions of the viewpoint (EYE Point).
  • This EYEPoint is the R Point, which is the rotational axis of the thigh and torso of the human body (model), the seat at the back, the seat height at the bottom, and the seat angle at 25 degrees (degrees). It is set by the H Point when the (model) is seated, and the depression angle is determined by the angle from this EYE Point to the center line of the HUD display.
  • the distance (stop distance) required for the traveling vehicle to stop changes in proportion to the traveling speed of the vehicle, as shown in FIG.
  • a vehicle traveling at a speed of 30 km / h needs a stopping distance of 14 m, which is a combination of the free running distance and the braking distance.
  • the stopping distance is 52 m at 70 km / h, and 93 m at a speed of 100 km / h. Necessary.
  • the HUD device which is an information display device, projects various kinds of information to the driver by projecting image light on the windshield of an automobile to provide various information to the driver.
  • the display position is preset in front of the vehicle. What was displayed at the indicated position was mainstream.
  • alert display information
  • the present invention provides a HUD device that enables safer driving in consideration of the relationship between the traveling speed of the vehicle and the stopping distance described above, and makes the display position of the virtual image (the distance in front of the vehicle) variable. It is an object of the present invention to provide a HUD device that can solve the problem of the HUD device in that case, that is, the increase in the device capacity due to the increase in the size of the optical system including the concave mirror also used in the above prior art.
  • FIG. 5 is a block diagram and a schematic configuration diagram showing a peripheral device configuration of the HUD device 100 according to an embodiment of the present invention.
  • a HUD device that projects an image on a windshield of an automobile is shown. explain.
  • the HUD device 100 forms various virtual images V1 to V3 at a plurality of positions in front of the host vehicle in the driver's line of sight 8, and thus various information reflected by the projection member 6 (the windshield in the present embodiment).
  • the projected member 6 may be a member on which information is projected, and may be a combiner as well as the above-described windshield. That is, in the HUD device 100 of the present embodiment, a driver forms a virtual image at each of a plurality of positions in front of the host vehicle in the driver's line of sight 8 and visually recognizes the driver.
  • an alert display (information) for warning the presence of a pedestrian or a preceding vehicle in front of the vehicle, and further includes vehicle information and foreground information captured by a camera (not shown) such as a surveillance camera or an around viewer. But you can.
  • the HUD device 100 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: described in detail later).
  • 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 that forms the eyepiece optical system.
  • the arrangement of these optical elements 21 and 22 is for the purpose of setting the virtual image forming positions at a plurality of positions in front of the host vehicle (three positions in FIG. 5).
  • 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 aberrations 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.
  • the generation position of the virtual image is divided into the far virtual image V3, the intermediate virtual image V2, and the near virtual image V1, and the optical elements 21 and 22 are provided individually, has been described. It is not limited to this.
  • 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 is connected with at least a navigation system 61 and a driving support electronic control device (hereinafter referred to as “driving support ECU (Electronic Control Unit))” 62 as an acquisition source of vehicle information and foreground information. Yes.
  • driving support ECU Electric Control Unit
  • the navigation system 61 is a device that guides a route to a set destination according to the result of collating the current position detected by the position detection device with the map data stored in the map data storage unit.
  • the map data includes various information such as information on road speed limits, the number of lanes, and intersections.
  • the control device 30 obtains information such as the speed limit and number of lanes of the road corresponding to the current position where the host vehicle is traveling, the planned travel route of the host vehicle set in the navigation system 61, and the like. Obtained as foreground information (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 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 description of the whole system of the information display apparatus which is one Embodiment of this invention.
  • the travel speed and the stop distance of the host vehicle are displayed as an alert display on a dangerous object far away from the stop distance (for example, a pedestrian in front of the vehicle or a preceding vehicle).
  • the display position (range) necessary for alert display is obtained, and the display position is determined including the optimum viewing angle (FOV). For example, when the traveling speed is 30 km / h, an alert is displayed at a distance of 14 m or more to avoid danger.
  • FIG. 6 shows the situation when the above alert display is performed for a pedestrian.
  • the alert display for the pedestrian is displayed on the HUD shown in FIG. It is performed near the lower end of the image display area (area).
  • the alert display performed near the lower end portion of the HUD image display area (area) is displayed near the vehicle front 19 m, as is apparent from the left part of the figure.
  • the vehicle is traveling at a high speed, as is apparent from the left part of the figure, it is performed near the upper end. According to this, the alert display performed near the upper end of the HUD image display area (area) is displayed in the vicinity of 100 m ahead of the vehicle.
  • FIG. 7 shows the situation when the above alert display is performed on the preceding vehicle.
  • the alert display for the preceding vehicle is displayed on the HUD shown in FIG. This is performed near the lower end of the image display area (area).
  • the alert display performed near the lower end of the HUD image display area (area) is displayed in the vicinity of 19 m ahead of the vehicle.
  • the alert display performed near the upper end of the HUD image display area (area) is displayed in the vicinity of 100 m ahead of the vehicle.
  • the alert that is information for warning the presence of a pedestrian ahead of the vehicle and the presence of a preceding vehicle is considered in consideration of the relationship between the traveling speed of the vehicle and the stop distance.
  • the display (information) or the like can be displayed for a dangerous object far from the stop distance of the host vehicle.
  • 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 Therefore, in order to solve the increase in the device capacity accompanying the increase in the viewing angle of the HUD image display area (area), it is pointed out that it cannot be stored in the space between the glass and the steering.
  • the structure of the information display device will be described.
  • FIGS. 9 and 10 show the configuration and arrangement (layout) of the HUD device 100, which is an information display device suitable for miniaturization.
  • the HUD device 100 which is an information display device suitable for miniaturization.
  • a concave (free-form surface) mirror that projects image light that forms a virtual image through the windshield 6, and a correction lens group for correcting distortion and aberration generated at that time.
  • a backlight source using a light emitting diode constituting the backlight as a light source is provided.
  • 7 is a housing
  • an optical means 3 for suppressing the P wave component is provided between the lens group and the video display device. ing.
  • An opening for projecting image light toward the windshield of the automobile is formed on the upper surface of the housing 7, and the opening is covered with an antiglare plate 9 (glare trap).
  • a concave mirror driving unit constituted by an electric motor or the like for adjusting the position of the concave mirror is provided integrally with the concave mirror.
  • the collimating optical system in order to enlarge the viewing angle, for example, by rotating the concave mirror, and in order to realize a far-off virtual image distance, the collimating optical system is appropriately set, etc.
  • desired characteristics can be realized.
  • 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 present invention is not limited to the above-described embodiments, and includes various modifications.
  • the above-described embodiments are described in detail for the entire system in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those 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.
  • DESCRIPTION OF SYMBOLS 3 ... Optical means, 4 ... Intermediate image image formation part, 5 ... Optical component, 6 ... Projection member (front glass), 7 ... Housing

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

Abstract

L'invention concerne un dispositif d'affichage d'informations qui prend en compte une relation entre la vitesse de déplacement et la distance d'arrêt du véhicule pour réduire le mouvement du point de vue du conducteur et pour permettre une conduite plus sûre. Ledit dispositif d'affichage d'informations affiche des informations d'image dans un véhicule, le dispositif d'affichage d'informations comprenant un dispositif HUD disposé entre un pare-brise du véhicule et un panneau d'installation du véhicule, le dispositif HUD comprenant un système optique d'image virtuelle qui amène une image virtuelle des informations d'image à être affichée à l'avant du véhicule par réflexion de la lumière émise par le dispositif HUD affichant les informations d'image sur le pare-brise, et la position d'affichage de l'image virtuelle étant réglée en correspondance avec la vitesse de déplacement du véhicule.
PCT/JP2019/005747 2018-03-15 2019-02-18 Dispositif d'affichage d'informations Ceased WO2019176448A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-048499 2018-03-15
JP2018048499A JP2019159207A (ja) 2018-03-15 2018-03-15 情報表示装置

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WO2019176448A1 true WO2019176448A1 (fr) 2019-09-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021228112A1 (fr) * 2020-05-15 2021-11-18 华为技术有限公司 Appareil de réglage de système de poste de pilotage et procédé destiné à régler un système de poste de pilotage

Citations (4)

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Publication number Priority date Publication date Assignee Title
JPH05147456A (ja) * 1991-11-27 1993-06-15 Nippon Seiki Co Ltd 車両用表示装置
JP2010143520A (ja) * 2008-12-22 2010-07-01 Toshiba Corp 車載用表示システム及び表示方法
WO2017029740A1 (fr) * 2015-08-20 2017-02-23 三菱電機株式会社 Dispositif de commande d'affichage, dispositif d'affichage et procédé de commande d'affichage
WO2017134866A1 (fr) * 2016-02-05 2017-08-10 日立マクセル株式会社 Dispositif d'affichage tête haute

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05147456A (ja) * 1991-11-27 1993-06-15 Nippon Seiki Co Ltd 車両用表示装置
JP2010143520A (ja) * 2008-12-22 2010-07-01 Toshiba Corp 車載用表示システム及び表示方法
WO2017029740A1 (fr) * 2015-08-20 2017-02-23 三菱電機株式会社 Dispositif de commande d'affichage, dispositif d'affichage et procédé de commande d'affichage
WO2017134866A1 (fr) * 2016-02-05 2017-08-10 日立マクセル株式会社 Dispositif d'affichage tête haute

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021228112A1 (fr) * 2020-05-15 2021-11-18 华为技术有限公司 Appareil de réglage de système de poste de pilotage et procédé destiné à régler un système de poste de pilotage
CN113682315A (zh) * 2020-05-15 2021-11-23 华为技术有限公司 座舱系统调节装置和用于调节座舱系统的方法
CN113993741A (zh) * 2020-05-15 2022-01-28 华为技术有限公司 座舱系统调节装置和用于调节座舱系统的方法
CN114407903A (zh) * 2020-05-15 2022-04-29 华为技术有限公司 座舱系统调节装置和用于调节座舱系统的方法
CN114407903B (zh) * 2020-05-15 2022-10-28 华为技术有限公司 座舱系统调节装置和用于调节座舱系统的方法
US12597274B2 (en) 2020-05-15 2026-04-07 Shenzhen Yinwang Intelligent Technologies Co., Ltd. Cockpit system adjustment apparatus and cockpit system adjustment method

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