JP2018034622A - Display control device for vehicle and display system for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display control device for a vehicle which suppresses the drive of the vehicle by an illegal user.SOLUTION: An HCU for performing S10 determines a current state of a vehicle out of a normal state that the vehicle is driven by a regular user, and an abnormal state that the vehicle is stolen and driven by an illegal user. When it is determined that the vehicle is in the normal state, the HCU for performing S20 limits the display luminosity of a normal-time image to normal-time upper limit luminosity or lower as a whole by controlling a virtual image display state of the normal-time image which is provided to the regular user as a display image. The HCU for performing S30 when it is determined that the vehicle is in the abnormal state enhances the display luminosity of at least a part of an abnormal-time image to abnormal-time luminosity exceeding the normal-time upper limit luminosity by controlling a virtual image display state of the abnormal-time image which is provided to the illegal user in place of the normal-time image as the display image.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a vehicle display control device and a vehicle display system.

  2. Description of the Related Art Conventionally, in an abnormal state where a vehicle is stolen and driven by an unauthorized user, a technique for giving a warning to the unauthorized user and reducing the willingness to steal has been widely proposed.

  For example, in the technique disclosed in Patent Document 1, when the vehicle enters an abnormal state due to theft, the vehicle display control device causes the meter of the instrument panel to perform an abnormal display process. As a result, it is difficult for an unauthorized user to distribute a vehicle that performs an abnormality display process using a meter as it is, so that it is expected that the willingness to steal is reduced.

JP 2004-175317 A

  In general, it is known that the return rate at which a stolen vehicle is returned to an authorized user is as low as about 20%, for example. This indicates that once the vehicle is moved, the return rate to the authorized user is significantly reduced. For this reason, it is an important issue in crime prevention to prevent theft of the vehicle to suppress driving by an unauthorized user and make it difficult to move the vehicle. Therefore, when the disclosure technique of Patent Document 1 is examined for such an important problem, the abnormality display by the meter of the instrument panel is likely to deviate downward from the view of the unauthorized user driving the vehicle. It can be said that it is insufficient from the viewpoint of suppressing driving.

  By the way, a vehicular display system that displays a virtual image of a display image projected from a head-up display (hereinafter referred to as HUD (Head-up Display)) onto a projection member that transmits the foreground in the vehicle is widely known. In such a vehicle display system, the virtual image display of the display image is easily overlapped with the foreground that has passed through the projection member, thereby easily entering the user's field of view. Therefore, when the vehicle is driven by a regular user, it is usually required that the display image does not interfere with the regular driving. However, the inventors of the present invention have been diligently studied on a technique for suppressing the unauthorized driving by reversing the normal idea and displaying a virtual image of a display image that disturbs the driving by an unauthorized user. .

  The present invention was created based on the results of the above-mentioned diligent study, and the object thereof is configured to include a vehicle display control device that suppresses driving of a vehicle by an unauthorized user, and the vehicle display control device. An object of the present invention is to provide a vehicle display system.

  The technical means of the invention for achieving the object will be described below. The reference numerals in parentheses described in the claims and in this section disclosing the technical means of the invention indicate the correspondence with the specific means described in the embodiment described in detail later. It is not intended to limit the technical scope of the invention.

First, the disclosed first invention is:
In a vehicle (2) equipped with a head-up display (50) that projects a display image (56) onto a projection member (21) that transmits the foreground (8), a vehicle display that controls the virtual image display of the display image by the projection. A control device (54) comprising:
A determination block (S10) for determining a current state of the vehicle among a normal state in which the vehicle is driven by an authorized user and an abnormal state in which the vehicle is stolen and driven by an unauthorized user;
When the determination block determines that the vehicle is in the normal state, the display brightness (L) of the normal image is controlled by controlling the virtual image display state of the normal image (568) provided to the authorized user as a display image. A normal-time control block (S20) that limits the normal-time upper limit luminance (Ln) or less throughout,
When the determination block determines that the vehicle is in an abnormal state, the virtual image display state of the abnormal image (560, 5560, 6560, 7560) to be provided to an unauthorized user instead of the normal image as a display image is controlled. Thus, the abnormal-time control block (S30) for increasing at least a part of the display luminance (L) in the abnormal image to the abnormal luminance (La) exceeding the normal upper limit luminance is provided.

The disclosed second invention is:
A head-up display (50) that projects a display image (56) onto a projection member (21) that transmits the foreground (8) in the vehicle (2);
A vehicular display system (1) including a vehicular display control device (54) for controlling a virtual image display of a display image by projection from a head-up display onto a projection member,
The vehicle display control device
A determination block (S10) for determining a current state of the vehicle among a normal state in which the vehicle is driven by an authorized user and an abnormal state in which the vehicle is stolen and driven by an unauthorized user;
When the determination block determines that the vehicle is in the normal state, the display brightness (L) of the normal image is controlled by controlling the virtual image display state of the normal image (568) provided to the authorized user as a display image. A normal-time control block (S20) that limits the normal-time upper limit luminance (Ln) or less throughout,
When the determination block determines that the vehicle is in an abnormal state, the virtual image display state of the abnormal image (560, 5560, 6560, 7560) to be provided to an unauthorized user instead of the normal image as a display image is controlled. Thus, the abnormal-time control block (S30) for increasing at least a part of the display luminance (L) in the abnormal image to the abnormal luminance (La) exceeding the normal upper limit luminance is provided.

  According to these first and second inventions, in a normal state where the vehicle is driven by a regular user, the display brightness of the normal image provided to the regular user is limited to the normal upper limit brightness or less. According to this, it is possible to prevent a normal image that easily enters the field of view of the authorized user by being displayed as a virtual image superimposed on the foreground from interfering with driving of the vehicle due to too high display luminance. On the other hand, in an abnormal state in which the vehicle is driven by an unauthorized user, at least a part of the display luminance in the abnormal image provided to the unauthorized user is increased to an abnormal luminance exceeding the normal upper limit luminance. According to this, the abnormal image that is easily displayed in the field of view of the unauthorized user by being displayed as a virtual image superimposed on the foreground makes the unauthorized user feel bothered by the display brightness as high as possible, and driving the vehicle Can bother you. Therefore, it is possible to suppress driving of the vehicle by an unauthorized user.

It is an interior view which shows the vehicle interior of the own vehicle carrying the display system for vehicles by a first embodiment. It is a block diagram which shows the display system for vehicles by 1st embodiment. It is a schematic diagram which shows the structure of HUD by 1st embodiment. It is a schematic diagram for demonstrating the change of a display position as a virtual image display state by 1st embodiment. It is a mimetic diagram for explaining change of a display range as a virtual image display state by a first embodiment. It is a front view which shows the virtual image display state of the image at the time of normal by 1st embodiment. It is a front view which shows the virtual image display state of the image at the time of abnormality by 1st embodiment. It is a flowchart which shows the display control flow by 1st embodiment. It is a flowchart which shows the normal time mode performed in the display control flow of FIG. It is a flowchart which shows the mode at the time of abnormality performed in the display control flow of FIG. It is a flowchart which shows the mode at the time of abnormality performed in the display control flow by 2nd embodiment. It is a front view which shows the virtual image display state of the image at the time of abnormality by 2nd embodiment. It is a flowchart which shows the mode at the time of abnormality performed in the display control flow by 3rd embodiment. It is a front view which shows the virtual image display state of the image at the time of abnormality by 3rd embodiment. It is a flowchart which shows the mode at the time of abnormality performed in the display control flow by 4th embodiment. It is a schematic diagram which shows the detailed structure of HUD by 4th embodiment. It is a schematic diagram equivalent to the XVII-XVII arrow line view of FIG. It is a schematic diagram for demonstrating switching between the lighting side light source and light extinction side light source by 4th embodiment. It is a schematic diagram for demonstrating switching between the lighting side light source and light extinction side light source by 4th embodiment. It is a front view which shows the virtual image display state of the image at the time of abnormality by 5th embodiment. It is a flowchart which shows the mode at the time of abnormality performed in the display control flow by 5th embodiment. It is a front view which shows the virtual image display state of the image at the time of abnormality by 6th embodiment. It is a front view which shows the virtual image display state of the image at the time of abnormality by 6th embodiment. It is a front view which shows the virtual image display state of the image at the time of abnormality by 6th embodiment. It is a front view which shows the virtual image display state of the image at the time of abnormality by 6th embodiment. It is a front view which shows the virtual image display state of the image at the time of abnormality by 6th embodiment. It is a front view which shows the virtual image display state of the image at the time of abnormality by 6th embodiment. It is a flowchart which shows the mode at the time of abnormality performed in the display control flow by 6th embodiment. It is a front view which shows the virtual image display state of the image at the time of abnormality by 7th embodiment. It is a flowchart which shows the mode at the time of abnormality performed in the display control flow by 8th embodiment. It is a flowchart which shows the modification of FIG. It is a flowchart which shows the modification of FIG. It is a flowchart which shows the modification of FIG. It is a flowchart which shows the modification of FIG.

  Hereinafter, a plurality of embodiments of the present invention will be described with reference to the drawings. In addition, the overlapping description may be abbreviate | omitted by attaching | subjecting the same code | symbol to the corresponding component in each embodiment. When only a part of the configuration is described in each embodiment, the configuration of the other embodiment described above can be applied to the other part of the configuration. Moreover, not only the combination of the configurations explicitly described in the description of each embodiment, but also the configuration of a plurality of embodiments can be partially combined even if they are not explicitly described, as long as there is no problem in the combination.

(First embodiment)
The vehicle display system 1 according to the first embodiment of the present invention is mounted on a vehicle 2 as shown in FIGS. The vehicle display system 1 can display the anti-theft function of the vehicle 2 by controlling the display in the passenger compartment 2a of the vehicle 2, particularly in the present embodiment.

  As shown in FIG. 2, the vehicle display system 1 includes a periphery monitoring system 3, a vehicle control system 4, and a display system 5. These systems 3, 4, and 5 are connected to each other via an in-vehicle network 6 such as a LAN (Local Area Network).

  The periphery monitoring system 3 includes an external sensor 30 and a periphery monitoring ECU (Electronic Control Unit) 31. The external sensor 30 detects obstacles that exist in the external environment of the vehicle 2 and may collide, such as other vehicles, artificial structures, humans, and animals, and traffic-related objects that exist in the external environment. The external sensor 30 is, for example, one type or plural types of sonar, radar, LIDAR (Light Detection and Ranging / Laser Imaging Detection and Ranging), and a camera.

  The periphery monitoring ECU 31 is mainly configured by a microcomputer having a processor and a memory, and is connected to the external sensor 30 and the in-vehicle network 6. The periphery monitoring ECU 31 acquires, for example, obstacle information, sign information, travel path information, and the like based on the output signal of the external sensor 30.

  The vehicle control system 4 includes a vehicle state sensor 40, an occupant sensor 41, and a vehicle control ECU 42. The vehicle state sensor 40 is connected to the in-vehicle network 6. The vehicle state sensor 40 detects the traveling state of the vehicle 2. The vehicle state sensor 40 is, for example, one type or a plurality of types including at least a theft monitor 40a among the theft monitor 40a, a vehicle speed sensor, a rotation speed sensor, a rudder angle sensor, a fuel sensor, a water temperature sensor, and a communication device. is there.

  Specifically, the theft monitor 40 a outputs a theft signal corresponding to the detection by detecting the theft of the vehicle 2. The theft monitor 40a is, for example, unauthorized opening of the door outside the passenger compartment 2a, unauthorized entry into the passenger compartment 2a, unauthorized replacement of electrical components mounted on the vehicle 2, and the impact and shaking of the vehicle 2 associated with the theft. And the inclination or the like are detected as an abnormal state in which the vehicle 2 is stolen. For example, the theft monitor 40a is one type or a plurality of types among sensors, cameras, monitoring ECUs, and the like corresponding to such detection targets.

  The vehicle speed sensor detects the vehicle speed of the vehicle 2 and outputs a vehicle speed signal corresponding to the detection. The rotation speed sensor detects the engine rotation speed of the internal combustion engine in the vehicle 2 and outputs a rotation speed signal corresponding to the detection. The steering angle sensor detects the steering angle of the vehicle 2 and outputs a steering angle signal corresponding to the detection. The fuel sensor detects the remaining amount of fuel in the fuel tank of the vehicle 2 and outputs a fuel signal corresponding to the detection. The water temperature sensor detects a coolant temperature of the internal combustion engine in the vehicle 2 and outputs a water temperature signal corresponding to the detection. The communication device outputs a traffic signal by receiving output radio waves from, for example, a positioning satellite, another vehicle transmitter for vehicle-to-vehicle communication, and a roadside device for road-to-vehicle communication.

  The occupant sensor 41 is connected to the in-vehicle network 6. The occupant sensor 41 detects the state or operation of a user who has boarded in the passenger compartment 2a of the vehicle 2. The occupant sensor 41 includes, for example, a plurality of types including at least the display setting switch 41a and the power switch among the display setting switch 41a, the user state monitor 41b, the power switch, the turn switch, and the automatic control switch.

  Specifically, the display setting switch 41a is operated by the user to set the display state in the passenger compartment 2a, and outputs a display setting signal corresponding to the operation. In particular, the display setting switch 41a of the present embodiment functions as an “input device” to which a user inputs a virtual image display state of a display image 56 described in detail later. Here, the virtual image display state which is the input content to the display setting switch 41a is, for example, display on / off, display luminance L, display range R, display color C, display position P and the like shown in FIGS. Among these, in the present embodiment, there are one or more types including at least display on / off and display luminance L.

  The user state monitor 41b captures a user state on the driver's seat 20 in the passenger compartment 2a shown in FIG. 1 using an image sensor, thereby detecting the user state and outputting an image signal. In particular, the user state monitor 41b of the present embodiment functions as a “state detector” that detects a line-of-sight related state related to the user's line of sight. Here, the line-of-sight related state includes, for example, an eyeball state (specifically, a pupil state), an eyeball position (specifically, a pupil position), a face direction, a face position, and a body direction. One or more types.

  The power switch is operated by the user in the passenger compartment 2a to start the internal combustion engine or the motor generator of the vehicle 2, and outputs a power signal corresponding to the operation. The turn switch is operated by the user in the passenger compartment 2a to operate the direction indicator of the vehicle 2, and outputs a turn signal corresponding to the operation. The automatic control switch outputs an automatic control signal corresponding to the operation when operated by the user in the passenger compartment 2a in order to instruct automatic control with respect to the traveling state of the vehicle 2.

  The vehicle control ECU 42 shown in FIG. 2 is mainly composed of a microcomputer having a processor and a memory, and is connected to the in-vehicle network 6. The vehicle control ECU 42 is one type or a plurality of types among an engine control ECU, a motor control ECU, a brake control ECU, a steering control ECU, an integrated control ECU, and the like.

  The engine control ECU accelerates or decelerates the vehicle speed of the vehicle 2 by controlling the operation of the throttle actuator and the fuel injection valve of the internal combustion engine according to the operation of the accelerator pedal 26 in the passenger compartment 2a shown in FIG. 1 or automatically. . The motor control ECU accelerates or decelerates the vehicle speed of the vehicle 2 by controlling the operation of the motor generator according to the operation of the accelerator pedal 26 in the passenger compartment 2a or automatically. The brake control ECU accelerates or decelerates the vehicle speed of the vehicle 2 by controlling the operation of the brake actuator according to the operation of the brake pedal 27 in the passenger compartment 2a or automatically. The steering control ECU adjusts the steering angle of the vehicle 2 by controlling the operation of the electric power steering according to the operation of the steering handle 24 in the passenger compartment 2a or automatically. The integrated control ECU synchronously controls the operations of the other ECUs based on, for example, the output signals of the sensors 40 and 41, the acquisition information of the periphery monitoring ECU 31, and the control information of the ECUs other than itself among the vehicle control ECUs 42.

  As shown in FIGS. 1 and 2, the display system 5 is mounted on the vehicle 2 for visually presenting information. The display system 5 includes an HUD 50, an MFD (Multi Function Display) 51, a combination meter 52, and an HCU (HMI (Human Machine Interface) Control Unit) 54.

  As shown in FIGS. 1 and 3, the HUD 50 is installed on the instrument panel 22 in the passenger compartment 2a. The HUD 50 forms a display image 56 representing predetermined information by, for example, a liquid crystal type or scanning type projector 50a. As shown in FIG. 3, the HUD 50 projects the display image 56 formed in this way onto the front windshield 21 as a “projection member” in the vehicle 2 through an optical system 50 b such as a concave mirror. Here, the front windshield 21 is formed of translucent glass, and transmits the foreground 8 existing in front of the vehicle 2 outside the passenger compartment 2a as shown in FIG. At this time, the light flux of the display image 56 reflected by the front windshield 21 and the light flux from the foreground 8 transmitted through the shield 21 are perceived by the user on the driver seat 20. As a result, the virtual image of the display image 56 formed at a position ahead of the front windshield 21 is displayed so as to be superimposed on a part of the foreground 8 so that it can be visually recognized by the user on the driver's seat 20.

  As shown in FIGS. 1 and 3, two types of areas A1 and A2 are set in the display area where the virtual image of the display image 56 is displayed. First, the first display area A1 is set in order to superimpose the display image 56 of the virtual image display in association with the specific object in the foreground 8. The first display area A1 for the purpose of such association is adjusted by the HUD 50 so that the display image 56 is formed at a distant position, for example, about 15 m away from the vehicle 2 in the foreground 8 forward. On the other hand, the second display area A2 is set in order to remove the association with the specific object in the foreground 8 and display the display image 56 in a virtual image. The second display area A2 for such disassociation is formed by the HUD 50 more than the first display area A1 so that the display image 56 is formed in the foreground 8 forward from the vehicle 2 at a short distance position of about 2 m, for example. Adjusted downward and small size. That is, in the second display area A2, the display image 56 formed at a position closer to the vehicle 2 than in the case of the first display area A1 is displayed as a virtual image.

  In the first display area A1, as long as at least one type of display image 56 is associated with the specific object in the foreground 8, such disassociated display image 56 may be displayed as a virtual image. Further, in the second display area A2, as long as at least one type of display image 56 is disassociated from the specific object in the foreground 8, the display image 56 that realizes such association may be displayed as a virtual image. .

  As shown in FIG. 3, the projector 50a and the optical system 50b constituting the HUD 50 are individually provided for each of the display areas A1 and A2. The HUD 50 includes a position adjustment mechanism 50c that drives the optical system 50b for each of the display areas A1 and A2 to adjust the projection position of the display image 56 on the front windshield 21. The position adjustment mechanism 50c adjusts the projection position of the display image 56 with respect to the front windshield 21, so that the actual center position in both the vertical and horizontal directions of the display range R in which the display image 56 is displayed as a virtual image in each display area A1, A2. The display position P is moved as indicated by an arrow in FIG.

  Further, the HUD 50 may have a distance adjusting mechanism 50d for driving the projector 50a for each display area A1, A2 and adjusting the relative distance of the projector 50a with respect to the optical system 50b as shown in FIG. You don't have to. Here, when the HUD 50 includes the distance adjustment mechanism 50d, the display image 56 is a virtual image in each of the display areas A1 and A2 by the mechanism 50d adjusting the relative distance of the projector 50a with respect to the optical system 50b. The display range R to be displayed is enlarged or reduced as shown by a broken line and a solid line in FIG.

  At this time, in a normal state in which the vehicle 2 is driven by a regular user, the display range R of the display image 56 (specifically, a normal-time image 568 described later) as shown by a broken line in FIG. The reduction is limited within the upper limit range Rn. Here, the normal upper limit range Rn is set to the upper limit of the display range R in which information can be provided accurately and without bothering the regular user. On the other hand, in an abnormal state in which the vehicle 2 is stolen and driven by an unauthorized user, the display range R of the display image 56 (specifically, an abnormal image 560 described later) is the normal upper limit range Rn as shown by the solid line in FIG. It is expanded to an abnormal range Ra that exceeds. Here, the abnormal time range Ra is set to a display range R that can be annoying to an unauthorized user and warn.

  In the case where the HUD 50 does not include the distance adjustment mechanism 50d, the display range R of the display image 56 is always within the normal upper limit range Rn regardless of whether the vehicle 2 is in a normal state or an abnormal state. Is set. As described above, the display range R is set to the abnormal range Ra or the normal upper limit range Rn according to the relative distance of the projector 50a to the optical system 50b in the configuration of the HUD 50.

  As shown in FIGS. 6 and 7, a plurality of types of images are prepared as the display image 56 that the HUD 50 displays a virtual image in either of the display areas A1 and A2 with such a configuration. Specifically, the plurality of types of display images 56 include at least an abnormal image 560, a road surface image 562, a weather image 563, a temperature image 564, a navigation image 565, a vehicle speed image 566, and a rotation speed image 567. Here, the abnormal image 560 is displayed as a virtual image in an abnormal state in which the vehicle 2 is driven by an unauthorized user. On the other hand, the other images 562, 563, 564, 565, 566, 567 are displayed as virtual images as normal images 568 in a normal state in which the vehicle 2 is driven by a regular user.

  The abnormal image 560 is within the display range R corresponding to the configuration of the HUD 50 in the first display area A1 shown in FIG. 7, that is, within the abnormal range Ra in the drawing or the normal upper limit range Rn (not shown). A virtual image is displayed. In particular, the abnormal image 560 of the present embodiment is formed in a so-called solid paint shape so that the entire display range R is filled with a single color. At this time, in this embodiment, the display color C of the abnormal image 560 is set to white as an achromatic color having the maximum luminance by the projector 50a, as schematically shown by a white figure in FIG.

  As shown in FIG. 6, the road surface image 562 is displayed as a virtual image in association with the traveling road ahead of the vehicle 2 in the first display area A1. The road surface image 562 represents road surface information related to the traveling road ahead of the vehicle 2. The weather image 563 is displayed as a virtual image in association with the traveling road ahead of the vehicle 2 in the first display area A1. The weather image 563 represents weather information regarding the traveling environment of the vehicle 2. The temperature image 564 is displayed as a virtual image in association with the traveling road ahead of the vehicle 2 in the first display area A1. The temperature image 564 represents temperature information related to the traveling environment of the vehicle 2. The navigation image 565 is displayed in a virtual image in association with the forward travel path of the vehicle 2 in the first display area A1. The navigation image 565 represents navigation information for guiding the planned travel route of the vehicle 2. The navigation information can be acquired based on the map information stored in the memory 54b and the output signal of the vehicle state sensor 40 in the HCU 54 described in detail later.

  The vehicle speed image 566 is displayed as a virtual image at a certain location that is not associated with the specific object in the second display area A2. The vehicle speed image 566 represents vehicle speed information based on an output signal from the vehicle speed sensor in the vehicle state sensor 40. The rotational speed image 567 is displayed as a virtual image along with the vehicle speed image 566 at a fixed location that is not associated with the specific object in the second display area A2. The rotational speed image 567 represents engine rotational speed information based on an output signal from the rotational speed sensor of the vehicle state sensor 40.

  The images 562, 563, 564, 565, 566, and 567 to be the normal images 568 are displayed as virtual images in the normal upper limit range Rn as the display range R regardless of the configuration of the HUD 50. At the same time, the display color C of the images 562, 563, 564, 565, 566, 567 is, for example, a regular user who normally drives the vehicle 2 according to the design specifications and driving state of the vehicle 2, the display purpose for each image, and the like. It is set to a color suitable for providing information. Further, the display luminance L of the images 562, 563, 564, 565, 566, 567 is limited to a predetermined normal upper limit luminance Ln or less for the normal user over the whole. Here, the normal upper limit luminance Ln is set to an upper limit value among the display luminances L that can provide information accurately and without making the regular user feel dazzling.

On the other hand, the display luminance L of the abnormal image 560 described above exceeds the normal upper limit luminance Ln over the entire display range R corresponding to the configuration of the HUD 50 (that is, the abnormal range Ra or the normal upper limit range Rn). The abnormal brightness La is increased as shown in FIG. As a result, the abnormal image 560 of the present embodiment emits light entirely in white with a high abnormal luminance La. Here, the abnormal-time luminance La is set to a display luminance L that allows an unauthorized user who illegally drives the vehicle 2 to feel dazzling and warn. Specifically abnormal luminance La is, 10000 cd / ^{m 2} value space glare index the following equation 1 UGR (Unified Glare Rating) is 28 or more, for typical daytime intensity 5000 cd / ^{m 2} for example in the foreground 8 It sets so that it may become the above value. In Equation 1, the variable Lb is the luminance (unit: cd / m ² ) of the foreground 8 that is the background of the abnormal image 560. In Equation 1, the variable ω is the solid angle (unit: sr) of the projector 50a. Further, in Equation 1, the variable P is a position index (unit: m) at a position where the abnormal image 560 is formed by the projector 50a.

  In the above, the display brightness L of the images 560, 562, 563, 564, 565, 566, 567 is, for example, the gradation value of each color (specifically RGB) in the projector 50a or the light emission of the light source in the projector 50a. Adjustment is possible by setting the brightness or the like. Further, as the display image 56, in addition to the images 560, 562, 563, 564, 565, 566, 567, for example, an image related to music information or video information provided in the compartment 2a of the vehicle 2, etc. However, it may be adopted. Further, by using a translucent combiner that is arranged on the instrument panel 22 and transmits the foreground 8 in cooperation with the front windshield 21, a virtual image display can be realized by projecting the display image 56 on the combiner. It is.

  As shown in FIG. 1, the MFD 51 is installed in the center console 23 in the passenger compartment 2a. The MFD 51 displays a real image of an image formed so as to show predetermined information on one or a plurality of liquid crystal panels so that it can be visually recognized by a user on the driver's seat 20. As the real image display by the MFD 51, display of an image indicating one type or a plurality of types of information among navigation information, music information, video information, and the like is employed.

  The combination meter 52 is installed on the instrument panel 22 in the passenger compartment 2a. The combination meter 52 displays vehicle information related to the vehicle 2 so that the user on the driver's seat 20 can visually recognize the vehicle information. The combination meter 52 is a digital meter that displays vehicle information by an image formed on a liquid crystal panel, or an analog meter that displays vehicle information by indicating a scale with a pointer. As the display by the combination meter 52, for example, a display indicating one type or a plurality of types of information among information such as a vehicle speed, an engine speed, a remaining fuel amount, a coolant temperature, a turn switch, and an automatic control switch is adopted. .

  As shown in FIG. 2, the HCU 54 is mainly composed of a microcomputer having a processor 54 a and a memory 54 b, and is connected to the display elements 50, 51, 52 of the display system 5 and the in-vehicle network 6. The HCU 54 controls the display state of the display elements 50, 51, 52 synchronously. At this time, the HCU 54 controls the display state based on, for example, acquisition information or output signals of the ECU 31 and sensors 40 and 41, control information of the ECU 42, storage information of the memory 54b, acquisition information of the HCU 54 itself, and the like. The memory 54b of the HCU 54 and the memories of other various ECUs are respectively configured by using one or a plurality of storage media such as a semiconductor memory, a magnetic medium, or an optical medium.

  Here, the HCU 54 of the present embodiment functions as a “vehicle display control device” so as to read out the display image 56 stored as data in the memory 54 b and display the virtual image on the HUD 50. Specifically, the HCU 54 functionally realizes each step of the display control flow shown in FIG. 8 by executing a display control program by the processor 54a.

  The display control flow of the present embodiment is constructed so as to give versatility to various vehicles 2 in which the presence / absence of the distance adjustment mechanism 50d and the presence / absence of the user state monitor 41b are different. The display control flow is started in response to an ON operation of the power switch as the occupant sensor 41 and is ended in response to an OFF operation of the switch. Furthermore, “S” in the display control flow means each step. Note that the image storage unit for storing the display image 56 necessary for the display control flow is either one of the memories of the built-in ECU of the display elements 50, 51, 52, or the memory and the memory 54b of the HCU 54. Of these, a combination of a plurality of memories may be realized.

  In S10 of the display control flow, the current state of the vehicle 2 is determined between a normal state in which the vehicle 2 is driven by an authorized user and an abnormal state in which the vehicle 2 is stolen and driven by an unauthorized user. At this time, whether the current state of the vehicle 2 is a normal state or an abnormal state is determined based on the output signal of the theft monitor 40a.

  If it is determined in S10 that the vehicle 2 is in a normal state, the user in the passenger compartment 2a is assumed to be a regular user, and the process proceeds to S20. In S20, the normal mode is executed. In the normal mode, the normal image 568 currently provided to the regular user is selected from the images 562, 563, 564, 565, 566, and 567, and the virtual image display state of the selected normal image 568 is controlled. Here, during the normal mode, by receiving an output signal from the display setting switch 41a, a state in which an input from the authorized user to the display setting switch 41a is continued.

  Specifically, in the normal mode shown in FIG. 9, in S201, the display range R of the selected normal image 568 is limited to the normal upper limit range Rn regardless of the presence or absence of the distance adjustment mechanism 50d. Set.

  In S202 after executing S201 in the normal mode, the presence / absence of the user status monitor 41b is determined. As a result, when it is determined in S202 that the user status monitor 41b is present, the process proceeds to S203. In S203, the line-of-sight related state of the authorized user is acquired based on the output signal of the user state monitor 41b. In subsequent S204, the display position P of the selected normal image 568 is set in accordance with the line-of-sight related state of the authorized user acquired in S203. On the other hand, if it is determined in S202 that the user status monitor 41b is not present, the process proceeds to S205, where the display position P of the selected normal image 568 is set to the input position to the display setting switch 41a or a predetermined value. Set to the specified position. Here, the specified position is specified in advance as a display position P where the normal image 568 can be visually recognized in common with the assumed user by assuming a plurality of users having different physiques.

  After the execution of either S204 or 205 in the normal mode, the process proceeds to S206. In S206, the display color C of the selected normal image 568 is set to a color suitable for provision to the authorized user. In subsequent S207, the display luminance L of the selected normal image 568 as a whole is set to the input luminance to the display setting switch 41a or a predetermined specified luminance within a range in which the display luminance L is limited to the normal upper limit luminance Ln or less. Here, the prescribed luminance is preliminarily prescribed to a display luminance L that is equal to or lower than the normal upper limit luminance Ln that allows the normal image 568 to be visually recognized in common with the assumed user by assuming a plurality of users having different visual system sensitivities. Is done. In the subsequent S208, the virtual image display state in the corresponding areas A1, A2 of the selected normal image 568 is controlled according to the setting result in the step immediately before S201, S204, S205, S206, S207.

  In the normal mode, after executing S208 in this way, the process returns to S10 shown in FIG. When it is determined in S10 that the vehicle 2 is in an abnormal state with respect to S20 in the normal mode, the user in the passenger compartment 2a is determined to be an unauthorized user and the process proceeds to S30. In S30, the abnormal mode is executed. In this abnormal mode, the virtual image display state of the abnormal image 560 is controlled. Here, during the abnormal mode, the state of ignoring the input to the display setting switch 41a by an unauthorized user is continued by blocking the reception of the output signal from the display setting switch 41a.

  Specifically, in the abnormal mode shown in FIG. 10, whether or not the HUD 50 is in a display off state in which the virtual image display of the display image 56 is turned off by an input to the display setting switch 41 a before the execution of S30 is started. In S301, the determination is made. As a result, if it is determined in S301 that the HUD 50 is in the display off state of the display image 56, the process proceeds to S302.

  In S302, the state of the HUD 50 is forcibly switched to the display-on state in which the virtual image display of the display image 56 is turned on, and then the process proceeds to S303. If it is determined in S301 that the display image 56 is not in the display-off state, the HUD 50 proceeds to S303 without executing S302.

  In S303, the presence / absence of the distance adjustment mechanism 50d is determined. As a result, when it is determined in S303 that the distance adjustment mechanism 50d is present, the process proceeds to S304. In S304, the display range R of the abnormal image 560 is set to an abnormal range Ra that is larger than the normal upper limit range Rn. On the other hand, if it is determined in S303 that the distance adjustment mechanism 50d is not present, the process proceeds to S305. In S305, the display range R of the abnormal image 560 is set to be maintained within the normal upper limit range Rn.

  In the abnormal mode, the process proceeds to S306 after both S304 and S305 are executed. In S306, the presence / absence of the user status monitor 41b is determined. As a result, when it is determined in step S306 that the user status monitor 41b is present, the process proceeds to step S307. In S307, the gaze-related state of the unauthorized user is acquired based on the output signal of the user state monitor 41b. In subsequent S308, the display position P of the abnormal image 560 is set in accordance with the gaze-related state of the unauthorized user acquired in S307. On the other hand, if it is determined in step S306 that the user status monitor 41b is not present, the process proceeds to step S309, and the display position P of the abnormal image 560 is set to a predetermined specified position. Here, the specified position is defined in advance as a display position P where a plurality of users having different physiques are assumed and the abnormal image 560 can be visually recognized in common with the assumed users.

  After executing either S308 or S0309 in the abnormal mode, the process proceeds to S310. In S310, the display color C of the abnormal image 560 is set to white. In subsequent S311, the display luminance L in the entire abnormal image 560 is forcibly set to an abnormal luminance La exceeding the normal upper limit luminance Ln. In the subsequent S312, the virtual image display state in which the entire abnormal image 560 is continuously displayed in the first display area A1 is set in the step immediately before among S304, S305, S308, S309, S310, and S311. Control according to the results. Thereby, in S312, the abnormal image 560 that emits white light with the abnormal luminance La exceeding the normal upper limit luminance Ln over the entire display range R (that is, the abnormal range Ra or the normal upper limit range Rn) is a virtual image. It will continue to be displayed.

  In the abnormal mode, after executing S312 in this manner, the process returns to S10 shown in FIG. Therefore, when the output of the theft signal from the theft monitor 40a is canceled in S10 that has been returned, the normal mode of S20 is restored.

  As described above, in the HCU 54 that realizes the display control flow, the functional part that executes S10 corresponds to the “determination block”, the functional part that executes S20 corresponds to the “normal control block”, and executes S30. The functional part is equivalent to an “abnormal control block”.

(Function and effect)
The effects of the first embodiment described above will be described below.

  According to the first embodiment, in a normal state in which the vehicle 2 is driven by a regular user, the display luminance L of the normal image 568 provided to the regular user is limited to the normal upper limit luminance Ln or less. According to this, it suppresses that the normal time image 568 which becomes easy to enter into a legitimate user's field of vision by being superimposed with the foreground 8 and disturbing the driving of the vehicle 2 due to the display luminance L that is too high. Can do. On the other hand, in an abnormal state in which the vehicle 2 is driven by an unauthorized user, the display luminance L over the entire abnormal image 560 provided to the unauthorized user is increased to an abnormal luminance La that exceeds the normal upper limit luminance Ln. According to this, the abnormal image 560 that is easily displayed in the field of view of the unauthorized user by being displayed as a virtual image superimposed on the foreground 8 makes the unauthorized user feel annoyed by the display luminance L as high as possible. The driving of the vehicle 2 can be disturbed. Therefore, it is possible to suppress driving of the vehicle 2 by an unauthorized user.

  Further, according to the first embodiment, in an abnormal state in which the vehicle 2 is driven by an unauthorized user, the first display area A1 that associates the display image 56 with the specific object in the foreground 8 and the second display area that is removed from the association. The abnormal image 560 is displayed as a virtual image in the first display area A1 of A2. According to this, the abnormal image 560 that can increase the ease of entering an unauthorized user's field of view by associating with a specific object in the foreground 8 is combined with a high abnormal luminance La that exceeds the normal upper limit luminance Ln. Thus, it becomes easy to disturb the driving of the vehicle 2. Therefore, the driving | running | working suppression effect of the vehicle 2 by an unauthorized user can be heightened.

  Further, according to the first embodiment, in an abnormal state in which the vehicle 2 is driven by an unauthorized user, the entire display range R set by the HUD 50 is displayed as a virtual image with a single color having an abnormal luminance La. Filled with. According to this, the abnormal image 560 that easily closes the field of view of the unauthorized user by filling the entire display range R is combined with the high abnormal luminance La that exceeds the normal upper limit luminance Ln in the entire region. It becomes easy to disturb the driving of the vehicle 2. Therefore, the driving | running | working suppression effect of the vehicle 2 by an unauthorized user can be heightened.

  Furthermore, according to the first embodiment, the display range R of the normal image 568 is within the normal upper limit range Rn with respect to the regular user in the normal state where the vehicle 2 is driven by the regular user regardless of the presence or absence of the distance adjustment mechanism 50d. Limited to According to this, it is possible to suppress the normal image 568 from interfering with the driving of the vehicle 2 due to the display range R that is too wide. When the distance adjusting mechanism 50d is provided, the display range R of the abnormal image 560 is expanded to the abnormal range Ra exceeding the normal upper limit range Rn in an abnormal state where the vehicle 2 is driven by an unauthorized user. According to this, the abnormal image 560 that can make an unauthorized user feel annoyed by the wide display range R as much as possible, combined with the high abnormal luminance La exceeding the normal upper limit luminance Ln, It becomes easy to disturb driving. Therefore, the driving | running | working suppression effect of the vehicle 2 by an unauthorized user can be heightened.

  In addition, according to the first embodiment, in an abnormal state where the vehicle 2 is driven by an unauthorized user, the input from the unauthorized user to the display setting switch 41a is ignored. According to this, the unauthorized user who felt dazzling by visually recognizing the abnormal image 560 having the high abnormal luminance La exceeding the normal upper limit luminance Ln displays the virtual image display state of the abnormal image 560 to the display setting switch 41a. Even if an attempt is made to make a change by inputting, the change is rejected. Such rejection can reduce the willingness of the fraudulent user to steal, so that it is possible to increase the driving suppression effect of the vehicle 2 by the unauthorized user.

  In addition, according to the first embodiment, when there is the user status monitor 41b, in an abnormal state in which the vehicle 2 is driven by an unauthorized user, an abnormality occurs in accordance with the line-of-sight related state of the unauthorized user detected by the user status monitor 41b. The display position P of the hour image 560 is set. According to this, the abnormal image 560 that can surely enter the field of view of the unauthorized user by setting the display position P according to the line-of-sight related state is combined with a high abnormal luminance La that exceeds the normal upper limit luminance Ln. It becomes easy to disturb the driving of the vehicle 2. Therefore, the driving | running | working suppression effect of the vehicle 2 by an unauthorized user can be heightened.

(Second embodiment)
As shown in FIG. 11, the second embodiment of the present invention is a modification of the first embodiment.

  In S2310 instead of S310 of the first embodiment in the display control flow of the second embodiment, the display color C of the abnormal image 560 is set to a warning color Cc as schematically shown in FIG. 12 with dot hatching. . At this time, the warning color Cc is set to, for example, red as a chromatic color that gives a warning to an unauthorized user by a visual stimulus. In S312 of the display control flow after execution of S2310, the warning color Cc of the abnormal luminance La exceeds the normal upper limit luminance Ln over the entire display range R (that is, the abnormal range Ra or the normal upper limit range Rn). The abnormal-time image 560 that is emitted in the light is continuously displayed as a virtual image.

  According to such a second embodiment, in an abnormal state where the vehicle 2 is driven by an unauthorized user, the display color C of the entire abnormal image 560 set to the abnormal luminance La is a warning color that gives a warning to the unauthorized user. Set to Cc. According to this, the abnormal image 560 that can improve the warning property to the unauthorized user by setting the warning color Cc, together with the high abnormal luminance La exceeding the normal upper limit luminance Ln in the warning color portion, It becomes easy to disturb the driving of the vehicle 2. Therefore, the driving | running | working suppression effect of the vehicle 2 by an unauthorized user can be heightened.

(Third embodiment)
As shown in FIG. 13, the third embodiment of the present invention is a modification of the first embodiment.

  In S3312 instead of S312 of the first embodiment in the display control flow of the third embodiment, the virtual image display state in which the entire abnormal image 560 blinks as time passes as shown by the arrow in FIG. Control according to the setting result. The blinking at this time is, for example, a process of repeatedly forming and erasing the abnormal image 560 by setting a gradation value in the projector 50a, or light emission and non-light emission of the abnormal image 560 by turning on and off the light source in the projector 50a. It can be realized from the process of repeating the above. Also, the blinking cycle may be constant or random. As a result of the execution of S3312, the abnormal state image 560 emits white light with an abnormal luminance La exceeding the normal upper limit luminance Ln over the entire display range R (that is, the abnormal range Ra or the normal upper limit range Rn). Then, the non-display state in which the display brightness L is substantially zero is repeated.

  According to the third embodiment, in the abnormal state in which the vehicle 2 is driven by an unauthorized user, the entire abnormal image 560 set to the abnormal luminance La flashes. According to this, the abnormal image 560 that can make an unauthorized user feel annoying by blinking is combined with the high abnormal luminance La that exceeds the normal upper limit luminance Ln in the blinking portion, and the vehicle 2 is operated. It becomes easy to disturb. Therefore, the driving | running | working suppression effect of the vehicle 2 by an unauthorized user can be heightened.

(Fourth embodiment)
As shown in FIG. 15, the fourth embodiment of the present invention is a modification of the third embodiment.

  In S4312 instead of S3312 of the third embodiment in the display control flow of the fourth embodiment, the virtual image display state in which the blinking portion in the abnormal image 560 changes with the passage of time is controlled according to the setting result in the immediately preceding step. The time change at this time can be realized by turning on and off each light source 5050e that the projector 5050a has as shown in FIGS.

  Specifically, the plurality of light sources 5050e are arranged in an array along the screen of the liquid crystal display 5050f that forms the abnormal image 560. Here, FIGS. 16 and 17 show a structure in which two light sources 5050e having a rectangular shape in a plan view are arranged in a line. Each light source 5050e is connected to the HCU 54 in parallel, so that each lighting can be individually controlled. Each light source 5050e has a corresponding pixel portion shifted in the abnormal image 560 formed by the liquid crystal display 5050f. Thus, each light source 5050e illuminates and emits the corresponding pixel portion in the abnormal image 560 when each light source is turned on. On the other hand, each light source 5050e emits no light when the corresponding pixel portion in the abnormal image 560 is turned off.

  Under the configuration of the projector 5050a, in step S4312 of FIG. 15, the lighting side light source 5050e to be turned on and the lighting side light source 5050e to be turned off are switched as time passes as shown in FIGS. Accordingly, in S4132, the display portion that emits white light with the abnormal luminance La exceeding the normal upper limit luminance Ln and the non-display portion where the display luminance L is substantially zero are displayed in the display range R (that is, the abnormal range Ra or normal). The switching is continued within the hour upper limit range Rn).

  Here, FIG. 18 shows an example in which the combination of the lighting-side light source 5050e and the extinguishing-side light source 5050e is switched in a constant pattern as indicated by an arrow at a constant or random cycle. On the other hand, FIG. 19 shows an example in which the combination of the lighting-side light source 5050e and the extinguishing-side light source 5050e is switched in a random pattern as indicated by an arrow at a constant or random cycle. In FIGS. 18 and 19, the lighting-side light source 5050e is indicated by a white graphic, and the extinguishing-side light source 5050e is indicated by a black graphic.

  According to the fourth embodiment, in an abnormal state in which the vehicle 2 is driven by an unauthorized user, the light source 5050e to be turned on and the light source 5050e to be turned off among the plurality of light sources 5050e that emit the abnormal image 560 by illumination are time-dependent. It is switched as time passes. According to this, it is possible to change the light emitting portion in the blinking abnormal image 560 according to the switching of the light source 5050e. The abnormal image 560 that can increase the annoyance felt by an unauthorized user due to such a change in the light emitting portion is combined with a high abnormal luminance La that exceeds the normal upper limit luminance Ln in the light emitting portion to drive the vehicle 2. It becomes easy to disturb. Therefore, the driving | running | working suppression effect of the vehicle 2 by an unauthorized user can be heightened.

(Fifth embodiment)
As shown in FIG. 20, the fifth embodiment of the present invention is a modification of the first embodiment.

  The abnormal image 5560 according to the fifth embodiment is directed outward from the inner portion 5560a at the center in both the vertical and horizontal directions of the display range R (that is, the abnormal range Ra or the normal upper limit range Rn) in the first display area A1. The so-called gradation in which the display color C changes is formed. At this time, the display color C of the abnormal image 5560 by the projector 50a is an achromatic color that changes in gradation from white at which the luminance is maximum to black at which the luminance is minimum through a plurality of gray colors between the white and black. Set to Here, the black portion of the abnormal image 5560 is not projected from the projector 50a, so that the foreground 8 is transmitted in the virtual image display state.

  The display luminance L of the abnormal image 5560 given such display color C is set so as to decrease from the abnormal luminance La toward the outer side from the inner part 5560a in the display range R. Here, in the abnormal image 5560, the portion of the abnormal luminance La exceeding the normal upper limit luminance Ln is, for example, from the white inner portion 5560a or from the inner portion 5560a and at least a part of the gray portion. It is preferable to be configured to occupy 10% or more.

  In the display control flow of the fifth embodiment according to the configuration described so far, a gradation is formed from the white inner portion 5560a toward the black outer side in S5310 instead of S310 of the first embodiment as shown in FIG. The display color C of the abnormal image 5560 is set. In S5311 instead of S311 of the first embodiment, the display luminance L that decreases from the abnormal luminance La exceeding the normal upper limit luminance Ln toward the outer side from the inner portion 5560a is set in the abnormal image 5560. As described above, in S312, the gradation-like abnormal image 5560 gradually decreasing from the abnormal luminance La toward the outside of the display range R is continuously displayed as a virtual image.

  According to the fifth embodiment, in the abnormal state in which the vehicle 2 is driven by an unauthorized user, the display luminance L of the abnormal image 5560 increases toward the outside of the display range R set in the HUD 50. Is reduced from According to this, in the abnormal image 5560, a portion set to a high abnormal luminance La exceeding the normal upper limit luminance Ln can be concentrated inside the display range R. The abnormal-time image 5560 that can increase the glare felt by the unauthorized user due to the concentration of the high-luminance portion inside the display range R easily disturbs the driving of the vehicle 2. Therefore, the driving | running | working suppression effect of the vehicle 2 by an unauthorized user can be heightened.

(Sixth embodiment)
As shown in FIGS. 22 to 27, the sixth embodiment of the present invention is a modification of the first embodiment.

  The abnormal image 6560 according to the sixth embodiment has a periodic or random geometric pattern or a random pattern throughout the display range R (that is, the abnormal time range Ra or the normal time upper limit range Rn) in the first display area A1. Given a marble pattern. At this time, the display color C of the abnormal image 6560 is set by the projector 50a in accordance with a pattern given as described below. Here, the black portion of the abnormal image 6560 is not projected from the projector 50a, so that the foreground 8 is transmitted in the virtual image display state.

Image 6560a shown in FIG. 22 are given the checkered pattern as geometric, period a white rectangular portion 6560a1 of Brightness is maximum, and a rectangular portion 6560a2 of the black luminance becomes the minimum at both the longitudinal and transverse directions Are alternately arranged. An image 6560b shown in FIG. 23 is given a mosaic pattern as a geometric pattern, and has a white rectangular portion 6560b1 having the maximum luminance, a black rectangular portion 6560b2 having the minimum luminance, and a gray between the black and white. Color rectangular portions 6560b3 are randomly arranged in both the vertical and horizontal directions.

  An image 6560c shown in FIG. 24 is provided with a vertical stripe pattern among stripe patterns as a geometric pattern, a white linear portion 6560c1 having the maximum luminance, a black linear portion 6560c2 having the minimum luminance, the black and Gray linear portions 6560c3 between white are arranged periodically or randomly in the lateral direction. An image 6560d shown in FIG. 25 is provided with a horizontal stripe pattern among stripe patterns as a geometric pattern, and includes a white continuous dot portion 6560d1 having a maximum luminance and a black continuous dot portion 6560d2 having a minimum luminance. They are arranged alternately alternately in the vertical direction.

  An image 6560e shown in FIG. 26 is given a wave pattern as a geometric pattern, and a white waveform portion 6560e1 having the maximum luminance and a black waveform portion 6560e2 having the minimum luminance are regularly waved. In addition, they are arranged periodically in the vertical direction. However, although not illustrated for the image 6560e, the waveform portions may be randomly wavy, the arrangement direction of the waveform portions may be the horizontal direction, or the arrangement of the waveform portions may be random. An image 6560f illustrated in FIG. 27 has a marble pattern, and has a white portion 6560f1 having the maximum luminance and a black portion 6560f2 having the minimum luminance in a mixed manner.

  Any one of the images 6560a, 6560b, 6560c, 6560d, 6560e, and 6560f of the pattern and the display color C is selected as the abnormal image 6560 to display a virtual image in the sixth embodiment. Here, as shown in FIGS. 22 to 27, in any case, the display brightness L of the abnormal image 6560 is at least the abnormal brightness La that exceeds the normal upper limit brightness Ln in the white portion that is the maximum brightness portion. Is set. In any case, the display luminance L of the abnormal image 6560 is limited to the normal upper limit luminance Ln or less in at least the black portion that is the minimum luminance portion. Furthermore, when the images 6560b and 6560c are selected as the abnormal image 6560, the display luminance L of the gray portion may be set to all the abnormal luminance La or may be limited to the normal upper limit luminance Ln or less. Alternatively, it may be divided into a part of abnormal brightness La and a part below normal upper limit brightness Ln. From the above, it is preferable that the portion of the abnormal luminance La that exceeds the normal upper limit luminance Ln in the abnormal image 6560 occupy, for example, 50% or more of the display range R.

  In the display control flow of the sixth embodiment according to the configuration described so far, the display color C of the abnormal image 6560 is given according to the pattern given in S6310 instead of S310 of the first embodiment as shown in FIG. The same image 6560 is set. Further, in S6311 instead of S311 of the first embodiment, the display luminance L at which the maximum luminance portion becomes the abnormal luminance La exceeding the normal upper limit luminance Ln is set in the abnormal image 6560 according to the pattern to be given. As described above, in S312, the abnormal-time image 6560 that emits light by giving the abnormal-time luminance La to a part of the geometric pattern or marble pattern spreading over the entire display range R is continuously displayed as a virtual image. At this time, the pattern of the abnormal image 6560 may be fixed regardless of the passage of time, or may be changed periodically or randomly according to the passage of time.

  According to the sixth embodiment, in an abnormal state in which the vehicle 2 is driven by an unauthorized user, at least the display luminance L of the maximum luminance portion in the geometric pattern or marble pattern abnormal image 6560 is the abnormal luminance La. Is set. According to this, the abnormal image 6560 in which at least the maximum luminance portion of the geometric pattern or marble pattern has a high abnormal luminance La exceeding the normal upper limit luminance Ln can make an unauthorized user feel annoyed. It is easy to disturb the driving of 2. Therefore, the driving | running | working suppression effect of the vehicle 2 by an unauthorized user can be heightened.

(Seventh embodiment)
As shown in FIG. 29, the seventh embodiment of the present invention is a modification of the first embodiment.

  The abnormal image 7560 according to the seventh embodiment includes a warning character portion 7560a displayed as large as possible in the display range R (that is, the abnormal range Ra or the normal upper limit range Rn) in the first display area A1. It is composed of. The warning character portion 7560a represents a sentence that can give a warning intuitively to an unauthorized user. At this time, the display color C of the abnormal image 7560 is set by the projector 50a to a white color with the maximum brightness in the warning character portion 7560a, and to the warning color Cc according to the second embodiment except for the portion 7560a. The

  The display luminance L of the warning character portion 7560a is set to the abnormal luminance La that exceeds the normal upper limit luminance Ln as the entire abnormal image 7560 given the display color C. Thereby, in S312 in the display control flow of the seventh embodiment, the abnormal image 7560 in which the warning character portion 7560a of the abnormal luminance La spreading in the display range R emits white light is continuously displayed as a virtual image.

  According to the seventh embodiment, in the abnormal state in which the vehicle 2 is driven by an unauthorized user, the display luminance L of the warning character portion 7560a that gives a warning to the unauthorized user in the abnormal image 7560 is set to the abnormal luminance La. Is done. According to this, the abnormal image 7560 that can improve the warning property to an unauthorized user by displaying a virtual image of the warning character portion 7560a is compatible with a high abnormal luminance La that exceeds the normal upper limit luminance Ln in the warning character portion 7560a. Thus, it becomes easy to disturb the driving of the vehicle 2. Therefore, the driving | running | working suppression effect of the vehicle 2 by an unauthorized user can be heightened.

(Eighth embodiment)
As shown in FIG. 30, the eighth embodiment of the present invention is a modification of the first embodiment.

  In the display control flow of the eighth embodiment, in S8309 instead of S309 of the first embodiment, the display position P of the abnormal image 560 that determines the center position of the display range R (that is, the abnormal time range Ra or the normal time upper limit range Rn). Is variably set so as to change over time. At this time, the time change of the display position P can be realized by driving the position adjustment mechanism 50c continuously or intermittently. Moreover, the variable limit of the display position P in the first display area A1 covers an eye box that allows the abnormal image 560 to be visually recognized by each of the assumed users by assuming a plurality of users having different physiques. In advance.

  In S312 of the display control flow after the execution of S8309, the display position P of the abnormal image 560 that emits white light with the abnormal luminance La exceeding the normal upper limit luminance Ln over the entire display range R changes over time. Will continue.

  According to the eighth embodiment, in the abnormal state where the vehicle 2 is driven by an unauthorized user, the display position P of the abnormal image 560 changes with the passage of time. According to this, even when the abnormal image 560 that is once difficult to view due to a change in the posture of the unauthorized user can enter the view of the unauthorized user due to the temporal change of the display position P, the normal upper limit luminance Ln When combined with a high abnormality luminance La exceeding 1, the driving of the vehicle 2 is easily disturbed. Therefore, the driving | running | working suppression effect of the vehicle 2 by an unauthorized user can be heightened.

(Other embodiments)
Although a plurality of embodiments of the present invention have been described above, the present invention is not construed as being limited to these embodiments, and various embodiments and combinations can be made without departing from the scope of the present invention. Can be applied.

  Specifically, as Modification 1 regarding the first to eighth embodiments, the second display area A2 may not be set. As a second modification related to the first to eighth embodiments, the abnormal images 560, 5560, 6560, and 7560 may be displayed as virtual images in the second display area A2 in addition to the first display area A1.

  As a third modification related to the first to eighth embodiments, the abnormal images 560, 5560, 6560, and 7560 may be displayed as virtual images in the second display area A2 instead of the first display area A1. Here, in the case of the modified example 3, only the second display area A2 may be set without setting the first display area A1.

  As a fourth modification related to the third to eighth embodiments, the display color C of at least the portion set to the abnormal luminance La in the abnormal images 560, 5560, 6560, and 7560 is a warning color according to the second embodiment. You may set to Cc. As a fifth modified example related to the third to eighth embodiments, the display color C of at least the abnormal brightness La in the abnormal images 560, 5560, 6560, and 7560 is changed to a color other than white and the warning color Cc. It may be set.

  As a sixth modified example related to the fifth to eighth embodiments, at least a portion where the abnormal luminance La is set in the abnormal images 560, 5560, 6560, and 7560 is blinked according to the third or fourth embodiment. Also good. As a seventh modified example related to the fifth embodiment, the display luminance of the abnormal image 5560 may be decreased from the abnormal luminance La toward the inside of the display range R.

  As a modification 8 related to the first to eighth embodiments, the display range R may be enlarged or reduced by enlarging or reducing the formation size of the abnormal images 560, 5560, 6560, and 7560 by the projector 50a. In the case of the modified example 8, the process may be shifted from S302 to S304 without executing S303 and S305 in the display control flow. As a ninth modified example related to the first to eighth embodiments, when the HUD 50 has only a configuration without the distance adjusting mechanism 50d, the process proceeds from S302 to S305 without executing S303 and S304 in the display control flow. Also good.

  As a tenth modification regarding the first to eighth embodiments, when the HUD 50 has only a configuration without the user status monitor 41b, S202, S203, S204, S306, S307, and S308 are not executed in the display control flow. It is also possible to shift from S201 to S205 and shift from S304 and S305 to S309. As a modification 11 related to the first to seventh embodiments, when the HUD 50 is configured without the position adjustment mechanism 50c, S202, S203, S204, S205, S306, S307, S308, and S309 are executed in the display control flow. Instead, the process may proceed from S201 to S206 and from S304 and S305 to S310. Here, in the case of the modification 11, the display position P of the display image 56 including the abnormal images 560, 5560, 6560, and 7560 is always fixed at the specified position described in the first embodiment.

  As a twelfth modification related to the first to eighth embodiments, when the display image 56 is always displayed as a virtual image because the display on / off is not included in the input content to the display setting switch 41a, the display control flow is used. S301 and S302 may not be executed. As a modified example 13 related to the first to eighth embodiments, when the HUD 50 is configured without the display setting switch 41a, when the display image 56 is always displayed as a virtual image, the input reception in S20 and the processing in S30 are performed. Ignoring input and S301 and S302 may not be executed in the display control flow.

  The normal image 568 of the modified example 14 related to the first to eighth embodiments is one that represents information different from those images instead of at least one of the images 562, 563, 564, 565, 566, 567. Types or a plurality of types of display images 56 may be employed. Here, in the case of the modified example 14, the display position P of the display image 56 is in an area selected according to the type of the display image 56 employed as the normal image 568 in the first display areas A1 and A2. Is set.

  As a modification 15 related to the fifth embodiment, as shown in FIGS. 31 to 34, the structure of the projector 5050 a may be constructed other than the structure in which two light sources 5050 e having a rectangular shape in a plan view are arranged in a row. Good. Here, FIG. 31 shows a structure in which four or more light sources 5050e having a rectangular shape in a plan view are arranged in a line. FIG. 32 shows a structure in which two or more light sources 5050e having a rectangular shape in a plan view are arranged in two or more rows and four or more in each row. Further, FIG. 33 shows a structure in which light sources 5050e having a triangular shape in plan view are arranged in two or more rows and a plurality of rows in each row. Furthermore, FIG. 34 shows a structure in which light sources 5050e having a hexagonal shape in a plan view are arranged in three or more rows and in each row.

  As a modified example 16 related to the first to eighth embodiments, at least a part of the display control flow is realized by hardware by one or a plurality of ICs instead of functionally by the HCU 54. Also good. As a modified example 17 related to the first to eighth embodiments, in addition to or instead of the HCU 54, one type or a plurality of types of the peripheral control ECU 31 and the display control ECUs of the display elements 50, 51, 52 are designated as “vehicle display”. It may function as a “control device”.

DESCRIPTION OF SYMBOLS 1 Vehicle display system, 2 Vehicle, 8 Foreground, 21 Front windshield, 40 Vehicle state sensor, 40a Theft monitor, 41 Occupant sensor, 41a Display setting switch, 41b User state monitor, 50 HUD, 50a, 5050a Projector, 50b Optical System, 50c Position adjustment mechanism, 50d Distance adjustment mechanism, 54 HCU, 56 Display image, 560, 5560, 6560, 7560 Abnormal image, 568 Normal image, 5050e Light source, A1 First display area, A2 Second display area, C Display color, Cc Warning color, L Display brightness, La abnormal brightness, Ln Normal upper limit brightness, P display position, R display range, Ra abnormal range, Rn Normal upper limit range

Claims (14)

For a vehicle (2) equipped with a head-up display (50) for projecting a display image (56) onto a projection member (21) that transmits the foreground (8), for controlling a virtual image display of the display image by the projection A display control device (54) comprising:
A determination block (S10) for determining a current state of the vehicle among a normal state in which the vehicle is driven by an authorized user and an abnormal state in which the vehicle is stolen and driven by an unauthorized user;
When the vehicle is determined to be in the normal state by the determination block, by controlling the virtual image display state of the normal image (568) provided to the regular user as the display image, the normal image A normal control block (S20) for limiting the display luminance (L) to the normal upper limit luminance (Ln) or less throughout,
A virtual image of an abnormal image (560, 5560, 6560, 7560) to be provided to the unauthorized user as the display image instead of the normal image when the determination block determines that the vehicle is in the abnormal state An abnormal-time control block (S30) that increases at least a part of the display luminance (L) in the abnormal image to an abnormal luminance (La) that exceeds the normal upper limit luminance by controlling the display state; Vehicle display control device. The first display area (A1) for displaying a virtual image by associating the display image with the specific object in the foreground, and the second display area (A2) for removing the association and displaying the display image as a virtual image. In the vehicle set by the up display,
2. The vehicle display control device according to claim 1, wherein the abnormal-time control block displays a virtual image of the abnormal-time image (560, 5560, 6560, 7560) in the first display area.   The abnormal control block sets a display color (C) of at least a portion set to the abnormal luminance in the abnormal image (560) to a warning color (Cc) that gives a warning to the unauthorized user. The vehicle display control apparatus according to 1 or 2.   The vehicular display control device according to any one of claims 1 to 3, wherein the abnormal-time control block blinks at least a portion set to the abnormal-time luminance in the abnormal-time image (560). In the vehicle in which the display image emitted and emitted by a plurality of light sources (5050e) of the head-up display is displayed as a virtual image,
The vehicle display control device according to claim 4, wherein the abnormal time control block switches the light source to be turned on and the light source to be turned off as time passes.   The abnormal control block displays a virtual image of the abnormal image (560) in which the entire display range (R) set in the head-up display is filled with a single color of the abnormal luminance. The display control apparatus for vehicles as described in any one of these.   The abnormal-time control block decreases the display luminance (L) of the abnormal-time image (5560) from the abnormal-time luminance toward the outside of the display range (R) set in the head-up display. The display control apparatus for vehicles as described in any one of -5.   The abnormal control block sets a display luminance (L) of at least a maximum luminance portion in the abnormal image (6560) of a geometric pattern or a marble pattern as the abnormal luminance. The vehicle display control device according to Item.   2. The abnormal-time control block displays a virtual image of the abnormal-time image (7560) in which the display luminance (L) of a warning character portion (7560 a) that gives a warning to the unauthorized user is set to the abnormal-time luminance. The display control apparatus for vehicles as described in any one of -5. The normal control block limits the display range (R) of the normal image to a normal upper limit range (Rn) for the regular user,
10. The abnormality control block expands the display range (R) of the abnormal image (560, 5560, 6560, 7560) to an abnormal range (Ra) exceeding the normal upper limit range. The vehicle display control device according to any one of the preceding claims. In the vehicle equipped with an input device (41a) to which a virtual image display state of the display image is input from a user,
The vehicle display according to any one of claims 1 to 10, wherein when the determination block determines that the vehicle is in the abnormal state, the abnormality control block ignores an input to the input device. Control device. In the vehicle equipped with a state detector (41b) for detecting a line-of-sight related state related to the user's line of sight,
The abnormal control block sets a display position (P) of the abnormal image (560, 5560, 6560, 7560) according to the gaze-related state of the unauthorized user detected by the state detector. Item 12. The vehicle display control device according to any one of Items 1 to 11.   The vehicle display control apparatus according to any one of claims 1 to 12, wherein the abnormal-time control block changes a display position (P) of the abnormal-time image (560) as time passes. A head-up display (50) that projects a display image (56) onto a projection member (21) that transmits the foreground (8) in the vehicle (2);
A vehicle display control system (1) including a vehicle display control device (54) for controlling a virtual image display of the display image by projection from the head-up display onto the projection member,
The vehicle display control device comprises:
A determination block (S10) for determining a current state of the vehicle among a normal state in which the vehicle is driven by an authorized user and an abnormal state in which the vehicle is stolen and driven by an unauthorized user;
When the vehicle is determined to be in the normal state by the determination block, by controlling the virtual image display state of the normal image (568) provided to the regular user as the display image, the normal image A normal control block (S20) for limiting the display luminance (L) to the normal upper limit luminance (Ln) or less throughout,
A virtual image of an abnormal image (560, 5560, 6560, 7560) to be provided to the unauthorized user as the display image instead of the normal image when the determination block determines that the vehicle is in the abnormal state An abnormal-time control block (S30) that increases at least a part of the display luminance (L) in the abnormal image to an abnormal luminance (La) that exceeds the normal upper limit luminance by controlling the display state; Vehicle display system.