Vehicle display device, vehicle display system, vehicle display method and program

Abstract

To provide a display device for vehicle which does not leave a crew member with an uneasy feeling when a vehicle decelerates, a display system for vehicle, a display method for vehicle and a program.SOLUTION: A display device for vehicle comprises: a curve information acquisition unit for acquiring information relating to a curve of a driving lane 100; a speed reduction determination unit for determining whether or not speed reduction of a vehicle is required from the curve of the driving lane 100 and a vehicle speed; and a mark display unit which causes a display device to display a predetermined mark M to be overlaid along the driving lane 100 on an in-vehicle display region V3 in a case where the speed reduction is required.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a vehicle display device, a vehicle display system, a vehicle display method, and a program. [Background technology]

[0002] Patent Document 1 discloses a display control device that controls display by a head-up display (HUD). Specifically, in Patent Document 1, non-superimposed content is displayed when turning right or left, and then superimposed content is displayed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-132137 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in a vehicle equipped with a driving assistance device that automatically accelerates and decelerates the vehicle, there are cases where the occupants may feel uneasy when decelerating because they are unable to understand the reason for the deceleration.

[0005] An object of the present invention is to provide a vehicle display device, a vehicle display system, a vehicle display method, and a program that do not cause occupants to feel uneasy when the vehicle is decelerating. [Means for solving the problem]

[0006] The vehicle display device according to claim 1 includes a curve information acquisition unit that acquires information about the curvature of a driving lane, a deceleration determination unit that determines whether or not the vehicle needs to decelerate based on the curvature of the driving lane and the vehicle speed, and a display unit that displays a plurality of curves at different angles along the driving lane on a display area of ​​a display unit provided in a vehicle cabin when the vehicle needs to decelerate. Three-dimensionala mark display unit that displays an arrow feather-shaped mark in a superimposed manner; and a control unit that controls the host vehicle to decelerate when deceleration of the host vehicle is necessary, wherein the mark display unit As the angles of the marks displayed along the driving lane are different, the three-dimensional shape of the mark displayed at a position farther from the vehicle is displayed so as to have a larger area than the three-dimensional shape of the mark displayed at a position closer to the vehicle.

[0007] In the vehicle display device according to claim 1, the curve information acquisition unit acquires information about the curvature of the driving lane. The deceleration determination unit determines whether or not the vehicle needs to decelerate based on the curvature of the driving lane and the vehicle speed. When the deceleration determination unit determines that the vehicle needs to decelerate, the mark display unit superimposes a mark along the driving lane. This allows the occupants to visually recognize the superimposed mark along the curve and know in advance that they will need to decelerate. In addition, the mark display unit displays marks farther from the vehicle larger than marks closer to the vehicle, making it easier to understand the curvature of the curve. The term "superimposed display" used here is not limited to a configuration in which an obstacle is superimposed on an image of the obstacle seen through the windshield glass, but is a broad concept that includes a configuration in which an obstacle is superimposed on an image of the obstacle displayed on a display inside the vehicle. 。

[0008] Claim 2 The vehicle display device according to claim 1 to In the present invention, the mark display unit displays a plurality of the marks outside the driving lane.

[0009] Claim 2 In the vehicle display device according to the present invention, by displaying multiple marks outside the driving lane, it is possible to prevent a decrease in visibility of the driving lane even when the marks are displayed in front of the occupant's line of sight using a head-up display device or the like.

[0010] Claim 3 The vehicle display device according to claim 1 or 2 In the above, the mark display unit displays a mark in a deceleration section where deceleration is performed.

[0011] Claim 3 The vehicle display device according to the present invention allows the occupant to accurately grasp the position where deceleration will occur. It can be done.

[0012] Claim 4 The vehicle display device according to the present invention comprises the following features: 3 In any one of the above items, the mark display unit displays the time remaining until deceleration is performed.

[0013] Claim 4 The vehicle display device according to the present invention allows the occupant to accurately grasp the timing of deceleration. Note that the term "displaying the time" is not limited to a configuration in which the number of seconds remaining until deceleration is performed is displayed numerically, but is a broad concept that includes a configuration in which an animation using bar-shaped marks and circular marks, such as a progress bar, is displayed.

[0014] Claim 5 The vehicle display system according to the present invention comprises: 4 and a display device that displays the mark in a superimposed manner on the display area.

[0015] Claim 5 In the vehicle display system according to the present invention, the display device displays a plurality of marks superimposed along the driving lane in response to an instruction from the mark display unit.

[0016] A display method for a vehicle according to claim 6 includes the steps of: acquiring information about a curvature of a driving lane by a computer; determining whether or not deceleration of the vehicle is necessary based on the curvature of the driving lane and the vehicle speed; and, if deceleration of the vehicle is necessary, displaying a plurality of images at different angles along the driving lane on a display area of ​​a display unit provided in a vehicle cabin. Three-dimensional A mark in the shape of an arrow feather is superimposed, and when it is necessary for the vehicle to decelerate, the vehicle is controlled to decelerate. As the angles of the marks displayed along the driving lane are different, the three-dimensional shape of the mark displayed at a position farther from the vehicle is displayed so as to have a larger area than the three-dimensional shape of the mark displayed at a position closer to the vehicle. .

[0017] The program according to claim 7 acquires information about the curvature of the driving lane, determines whether or not the vehicle needs to decelerate based on the curvature of the driving lane and the vehicle speed of the vehicle, and if the vehicle needs to decelerate, displays a plurality of images of the vehicle with different angles along the driving lane on a display area of ​​a display unit provided in the vehicle cabin. Three-dimensional A mark in the shape of an arrow feather is superimposed, and when it is necessary for the vehicle to decelerate, the vehicle is controlled to decelerate. As the angles of the marks displayed along the driving lane are different, the three-dimensional shape of the mark displayed at a position farther from the vehicle is displayed so as to have a larger area than the three-dimensional shape of the mark displayed at a position closer to the vehicle. . [Effects of the Invention]

[0018] As described above, the vehicle display device, vehicle display system, vehicle display method, and program according to the present invention can prevent occupants from feeling uneasy when the vehicle is decelerating. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a schematic diagram of a front portion of a vehicle interior of a vehicle to which a vehicular display system according to an embodiment is applied, viewed from the rear side of the vehicle. [Figure 2] 1 is a block diagram showing a hardware configuration of a vehicle display device according to an embodiment; [Figure 3] 1 is a block diagram showing a functional configuration of a vehicle display device according to an embodiment; [Figure 4] 10A and 10B are diagrams illustrating display examples of a display area in an embodiment. [Figure 5] 10 is a flowchart illustrating an example of the flow of a display process according to an embodiment. [Figure 6] FIG. 10 is a diagram showing a display example of a display area in a first modified example. [Figure 7] FIG. 10 is a diagram showing a display example of a display area in a second modified example. [Figure 8] FIG. 11 is a diagram showing a display example of a display area in a third modified example. DETAILED DESCRIPTION OF THE INVENTION

[0020] A vehicular display system S according to an embodiment will be described with reference to the drawings. The arrow UP in Fig. 1 indicates the upper side in the vertical direction of the vehicle, and the arrow RH indicates the right side in the width direction of the vehicle. The vertical direction and the left-right direction in the following description refer to the up and down directions in the vertical direction of the vehicle and the left and right directions in the width direction of the vehicle, respectively.

[0021] 1, an instrument panel 14 is provided in the front portion of the cabin of a vehicle 12. The instrument panel 14 extends in the vehicle width direction, and a steering wheel 16 is provided on the right side of the instrument panel 14. That is, in this embodiment, as an example, the vehicle is a right-hand drive vehicle in which the steering wheel 16 is provided on the right side, and the driver's seat is located on the right side of the vehicle.

[0022] A windshield glass 18 is provided at the front end of the instrument panel 14. The windshield glass 18 extends in the vertical direction and the width direction of the vehicle, and separates the interior of the vehicle from the exterior of the vehicle.

[0023] The right end of the windshield glass 18 is fixed to a front pillar 20 on the right side of the vehicle. The front pillar 20 extends in the vertical direction of the vehicle, and the windshield glass 18 is fixed to the inner end of the front pillar 20 in the vehicle width direction. In addition, the front ends of front side windows 22 are fixed to the outer end of the front pillar 20 in the vehicle width direction. The left end of the windshield glass 18 is fixed to a front pillar on the left side of the vehicle (not shown).

[0024] Here, the instrument panel 14 is provided with a first display unit 24 having an image display area V1. The first display unit 24 is a meter display located on the vehicle right side of the instrument panel 14, and predetermined information is displayed by a first display device 42 (see FIG. 2). The first display unit 24 is connected to various meter devices mounted on the vehicle 12, and is provided in a position within the driver's field of view when the driver is looking ahead of the vehicle.

[0025] The instrument panel 14 is provided with a second display unit 25 having an image display area V2. The second display unit 25 is configured by a center display disposed in the center of the instrument panel 14 in the vehicle width direction, and predetermined information is displayed by a second display device 44 (see FIG. 2).

[0026] The windshield glass 18 is provided with a third display unit 26 having an image display area V3. The third display unit 26 is set above the first display unit 24 and is configured as a projection surface onto which an image is projected by a third display device 46 (see FIG. 2). Here, the third display device 46 is a head-up display device provided on the vehicle front side of the instrument panel 14, and is configured so that an image is projected from the third display device 46, which is a head-up display device, onto the third display unit 26 of the windshield glass 18. In other words, the third display unit 26 is part of the windshield glass 18, which serves as the projection surface for the head-up display device.

[0027] In the present embodiment, as an example, the third display device 46 is a so-called Augmented Reality Head-Up Display (AR-HUD) configured to be able to superimpose an image on the foreground of the vehicle 12. That is, the third display device 46 defines the angle of view based on the driver's eye point and an imaging plane of a virtual range in space where a virtual image can be formed. The third display device 46 is configured to control the display position so that the positional relationship between the driver's eye point, the superimposed object in the foreground, and the superimposed display is continuously maintained.

[0028] Here, the vehicle 12 is provided with a vehicle display device 10 that constitutes a vehicle display system S. The vehicle display device 10 of this embodiment is, for example, a display ECU (Electronic Control Unit) that performs various display controls.

[0029] (Hardware configuration of the vehicle display system S) As shown in FIG. 2, the vehicle display system S is configured to include a vehicle display device 10, a group of peripheral information acquisition sensors 56, a group of vehicle information acquisition sensors 66, and an autonomous driving ECU 48, each of which is communicatively connected via a communication bus 74.

[0030] The vehicle display device 10 includes a CPU (Central Processing Unit: processor) 30, a ROM (Read Only Memory) 32, a RAM (Random Access Memory) 34, a storage 36, and a communication interface (communication I / F) 38. Each component is connected to each other via an internal bus 40 so as to be able to communicate with each other.

[0031] The CPU 30 is a central processing unit that executes various programs and controls each part. That is, the CPU 30 reads programs from the ROM 32 or storage 36 and executes the programs using the RAM 34 as a work area. The CPU 30 also controls the above-mentioned components and performs various arithmetic processing in accordance with the programs recorded in the ROM 32 or storage 36.

[0032] The ROM 32 stores various programs and various data. The RAM 34 temporarily stores programs or data as a working area. The storage 36 is configured by an HDD (Hard Disk Drive) or an SSD (Solid State Drive), and is a non-temporary recording medium that stores various programs including an operating system and various data. In this embodiment, the ROM 32 or the storage 36 stores a display program for performing display processing, etc.

[0033] The communication I / F 38 is an interface that allows the vehicle display device 10 to communicate with external servers and other devices, and uses standards such as CAN (Controller Area Network), Ethernet (registered trademark), LTE (Long Term Evolution), FDDI (Fiber Distributed Data Interface), and Wi-Fi (registered trademark).

[0034] A first display device 42, a second display device 44, and a third display device 46 are connected to the vehicle display device 10. The first display device 42 displays an image in a display area V1 of the first display unit 24. The second display device 44 displays an image in a display area V2 of the second display unit 25. The third display device 46 displays an image in a display area V3 of the third display unit 26.

[0035] The surrounding information acquisition sensor group 56 includes a GPS (global positioning system) device 58 , an in-vehicle communication device 60 , a radar device 62 , and a camera 64 .

[0036] The GPS device 58 receives GPS signals from multiple GPS satellites to determine the position of the vehicle. The in-vehicle communication device 60 is a communication device that enables vehicle-to-vehicle communication with other vehicles and road-to-vehicle communication with roadside devices.

[0037] The radar device 62 is a sensor for detecting objects such as pedestrians and other vehicles around the vehicle, and is configured to include a plurality of radar devices with different detection ranges. For example, the radar device 62 may be configured to include a LIDAR (Light Detection and Ranging) or the like. The radar device 62 may also be configured to acquire the relative position and relative speed between the detected object and the vehicle.

[0038] The camera 64 captures images of the surroundings of the vehicle and outputs the captured images. For example, the camera 64 includes a front camera that captures images in front of the vehicle, a rear camera that captures images behind the vehicle, and side cameras that capture images on both the left and right sides of the vehicle.

[0039] The vehicle information acquisition sensor group 66 includes a vehicle speed sensor 68, an acceleration sensor 70, and a steering angle sensor 72. The vehicle speed sensor 68 directly or indirectly detects and outputs the vehicle speed. The acceleration sensor 70 directly or indirectly detects and outputs the vehicle acceleration. The steering angle sensor 72 directly or indirectly detects and outputs the vehicle steering angle.

[0040] The autonomous driving ECU 34 is a control unit for performing autonomous driving processing to allow the vehicle to travel automatically without any driving operation by the occupants, and this autonomous driving ECU 48 is electrically connected to a throttle actuator 50, a brake actuator 52, and a steering actuator 54.

[0041] The throttle actuator 50 is an actuator that changes the throttle opening of the vehicle, the brake actuator 52 is an actuator that changes the braking force generated by the vehicle's braking device, and the steering actuator 54 is an actuator that changes the steering amount by the vehicle's steering device.

[0042] Here, in the autonomous driving processing by the autonomous driving ECU 34, the situation of the vehicle and its surroundings is determined based on information obtained from the surrounding information acquisition sensor group 56 and the vehicle information acquisition sensor group 66, and the throttle actuator 50, brake actuator 52, and steering actuator 54 are controlled according to the surrounding situation.

[0043] In this embodiment, the vehicle is configured to be switchable between an automatic driving mode and a manual driving mode. In the automatic driving mode, the vehicle is driven automatically without any driving operation by the vehicle occupant, as described above. On the other hand, in the manual driving mode, the occupant performs at least some of the driving operations. For example, the manual driving mode includes a case where the occupant performs all driving operations, as well as a case where the occupant performs steering operations like a cruise control function, and the automatic driving ECU 48 performs vehicle acceleration and deceleration.

[0044] (Functional configuration of the vehicle display device 10) The above hardware resources are used to realize various functions of the vehicle display device 10. The functional configuration realized by the vehicle display device 10 will be described with reference to FIG.

[0045] 3, the vehicle display device 10 is configured to include, as functional components, a curve information acquisition unit 80, a deceleration determination unit 82, a mark display unit 84, and a display destination setting unit 86. Each functional component is realized by the CPU 30 reading and executing a program stored in the ROM 32 or the storage 36.

[0046] The curve information acquisition unit 80 acquires information regarding the degree of curvature of the driving lane in which the vehicle 12 is traveling. In the present embodiment, as an example, the curve information acquisition unit 80 calculates the radius of curvature of the curve in the driving lane from image data of the area ahead of the vehicle captured by the camera 64. The curve information acquisition unit 80 may also acquire data regarding the curve in which the vehicle 12 is scheduled to travel, based on the GPS device 58 and map information registered in the navigation system.

[0047] The deceleration determination unit 82 determines whether or not the vehicle 12 needs to decelerate based on the degree of curvature of the traveling lane and the vehicle speed. Specifically, the deceleration determination unit 82 determines whether or not the vehicle 12 needs to decelerate based on information about the degree of curvature of the traveling lane acquired by the curve information acquisition unit 80 and the speed of the vehicle 12 acquired from the vehicle speed sensor 68. In this case, as an example in the present embodiment, the deceleration determination unit 82 makes the determination when the vehicle 12 reaches a determination position that is a predetermined distance before the position where the vehicle 12 enters the curve.

[0048] For example, data is stored that sets the maximum speed when entering a curve according to the radius of curvature of the curve, and the deceleration determination unit 82 may refer to this data and determine that deceleration is necessary if the current speed of the vehicle 12 is faster than the maximum speed corresponding to the radius of curvature of the curve.

[0049] When it is necessary for the vehicle 12 to decelerate, the mark display unit 84 causes at least one of the first display device 42, the second display device 44, and the third display device 46 to superimpose a predetermined mark along the driving lane on at least one of the display areas V1, V2, and V3 inside the vehicle cabin.

[0050] As an example in this embodiment, when the first display device 42 displays a mark in the display area V1, and when the second display device 44 displays a mark in the display area V2, the mark is superimposed on the driving lane in the image in front of the vehicle captured by the camera 64. When the third display device 46 displays a mark in the display area V3, the mark is superimposed on the position of the driving lane as seen by the occupant in the foreground of the vehicle. Specific examples of displaying marks in the display area V3 will be described later.

[0051] The display destination setting unit 86 sets the display destination of the mark. Specifically, the display destination setting unit 86 determines whether the mark is to be displayed in display area V1, display area V2, or display area V3. For example, when the occupant is looking ahead of the vehicle, the display destination setting unit 86 displays the mark in display area V3. On the other hand, when the occupant is gazing at the information displayed in display area V2, such as while driving in autonomous driving mode, the display destination setting unit 86 may display the mark together with the image of the foreground in display area V2.

[0052] (Display example) Next, a display example displayed in the display region V3 of the third display unit 26 will be described with reference to FIG.

[0053] 4, the display area V3 shows the view ahead of the vehicle through the windshield glass 18. For ease of explanation, only a portion of the view through the windshield glass 18 is shown in section.

[0054] 4, the vehicle 12 is traveling in a driving lane 100 just before a curve, and a white line 102 extends along the driving lane 100 at the right end of the driving lane 100. A white line 104 extends along the driving lane 100 at the left end of the driving lane 100. Furthermore, a lane boundary line 106 extends to the left of the white line 104, and a lane 108 extends to the left of the lane boundary line 106. That is, as an example, the road in FIG. 4 has two lanes in each direction, and the vehicle 12 is traveling in the right lane.

[0055] Here, five marks M are displayed in the display area V3 by the mark display unit 84. In this embodiment, as an example, the five marks M are displayed at intervals on the outside of the driving lane 100. Specifically, the five marks M are displayed as if floating above the white line 102 on the right side of the driving lane 100.

[0056] The five marks M are displayed in a three-dimensional, roughly arrow-flute shape, with the angles of the arrow fletching varying along the curve of the driving lane 100. In this way, by displaying the marks M along the curve by the mark display unit 84, the occupants are notified to slow down in preparation for the curve.

[0057] (action) Next, the operation of this embodiment will be described.

[0058] (Display processing) An example of a display process for displaying the mark M in the display area V3 of the third display unit 26 will be described with reference to the flowchart shown in Fig. 5. This display process is executed by the CPU 30 reading a display program from the ROM 32 or the storage 36, expanding it in the RAM 34, and executing it.

[0059] In step S102, the CPU 30 acquires an image of the view ahead of the vehicle 12. Specifically, the CPU 30 acquires an image of the view ahead of the vehicle 12 taken by the camera 64 using the function of the curve information acquisition unit 80.

[0060] In step S104, the CPU 30 calculates the radius of curvature of the curve. Specifically, the CPU 30 extracts the driving lane 100 from the acquired image, and calculates the radius of curvature of the driving lane 100 by image processing.

[0061] Next, the CPU 30 determines whether deceleration is necessary in step S106. Specifically, if the speed of the vehicle 12 is determined by the function of the deceleration determination unit 82 to be faster than the maximum possible speed corresponding to the radius of curvature of the curve, the CPU 30 makes a positive determination in step S106 and proceeds to processing in step S108. On the other hand, if the speed of the vehicle 12 is slower than the maximum possible speed corresponding to the radius of curvature of the curve, deceleration is not necessary, so the CPU 30 makes a negative determination in step S106 and terminates the display processing. In other words, if deceleration of the vehicle 12 is not necessary, the mark M is not displayed.

[0062] In step S108, the CPU 30 uses the function of the mark display unit 84 to display five marks M along the driving lane 100 (see FIG. 4). Then, the CPU 30 ends the display process.

[0063] After the mark M is displayed by the mark display unit 84, the automatic driving ECU 48 controls the brake actuator 52, and the vehicle 12 is automatically decelerated without any operation by the driver.

[0064] As described above, in the vehicle display system S and vehicle display device 10 according to this embodiment, the occupants can visually recognize the mark M superimposed along the curve and know in advance that they will be slowing down.

[0065] In addition, in this embodiment, by displaying multiple (five) marks M outside the driving lane 100, it is possible to prevent a decrease in visibility of the driving lane 100 even if the mark M is displayed in front of the occupant's line of sight.

[0066] In the above embodiment, as shown in FIG. 4, the mark M is displayed superimposed above the white line 102 on the right side in the display area V3, but this is not limiting. For example, the configuration of the first modified example shown in FIG. 6 may be adopted. Also, the configuration of the second modified example shown in FIG. 7 may be adopted. Furthermore, the configuration of the third modified example shown in FIG. 8 may be adopted.

[0067] (First Modification) As shown in FIG. 6, in this modification, the mark display unit 84 displays five marks M as if they are floating above the driving lane 100.

[0068] Specifically, the five marks M are displayed at intervals on the driving lane 100 in a roughly arrow-like shape, with the angles of the arrow feathers varying along the curve of the driving lane 100.

[0069] In this modified example, the five marks M are displayed in animation in order from the foremost mark M. The speed at which the marks M are displayed is gradually slowed down to let the occupant know that the vehicle is in a deceleration zone.

[0070] In this way, this modification allows the occupant to intuitively recognize that the vehicle is decelerating.

[0071] (Second Modification) As shown in FIG. 7, in this modification, the mark display unit 84 displays the mark M2 superimposed on the driving lane 100.

[0072] The mark M2 is superimposed on the deceleration section in the driving lane 100 where the vehicle 12 decelerates, and is displayed across the entire driving lane in the deceleration section.

[0073] In this way, in this modified example, by superimposing the mark M2 on the deceleration section, the occupant can accurately grasp the position where deceleration will occur. Although not shown in Fig. 7, the mark display unit 84 may also display the time remaining until deceleration occurs in the display area V3. In this case, the occupant can accurately grasp the timing when deceleration will occur.

[0074] Note that various modes may be adopted for displaying the time remaining until deceleration occurs. For example, the mark display unit 84 may display the number of seconds remaining until deceleration occurs in the display area V3. Alternatively, the mark display unit 84 may display a bar-shaped mark like a progress bar, and gradually change color from one end to the other, allowing the occupant to grasp the time remaining until deceleration occurs.

[0075] (Third Modification) 8, in this modification, the display area V2 of the second display unit 25 is divided into an upper and lower area. A navigation system screen is displayed below the display area V2. The navigation system screen displays, for example, the current position of the vehicle 12 and the roads around the vehicle.

[0076] An image of the area ahead of the vehicle is displayed above the display area V2. Specifically, an image captured by the camera 64 is displayed in the display area V2. Five marks M are also displayed in the display area V2. Specifically, similar to the above embodiment, the marks M are displayed by the mark display unit 84 as if floating above the white line 102 on the right side.

[0077] In this manner, in this modified example, the mark M is displayed on the second display unit 25 provided on the instrument panel 14. This reduces the annoyance caused by the mark M when the driver is looking ahead, compared to a configuration in which the mark M is superimposed on an actual obstacle.

[0078] Although the vehicular display system S and the vehicular display device 10 according to the embodiment have been described above, it goes without saying that they can be embodied in various forms without departing from the spirit of the present invention. For example, in the above embodiment, a configuration in which the mark M is displayed on the third display unit 26 has been described, and in the above third modified example, a configuration in which the mark M is displayed on the second display unit 25 has been described, but the present invention is not limited to this, and the mark M may also be displayed on the first display unit 24.

[0079] In the above embodiment, the mark M is displayed in a substantially arrow feather shape as shown in Fig. 4, but is not limited to this. For example, a mark in the shape of an arrow may be displayed.

[0080] Furthermore, in the above embodiment, the mark M is displayed before the automatic deceleration is performed by the automatic driving ECU 48, but this is not limiting. For example, even if the occupant is performing driving operations, if it is determined that deceleration is necessary before entering a curve, the mark display unit 84 may display the mark M. [Explanation of symbols]

[0081] 10 Vehicle display device 12 vehicles 80 Curve information acquisition unit 82 Deceleration judgment section 84 Mark display area 100 travel lanes M mark S Vehicle Display System V1 display area V2 display area V3 display area

Claims

1. a curve information acquisition unit that acquires information about the curvature of a driving lane; a deceleration determination unit that determines whether or not deceleration of the host vehicle is necessary based on the degree of curvature of the travel lane and the vehicle speed of the host vehicle; a mark display unit that displays a plurality of three-dimensional arrow feather-shaped marks at different angles along the driving lane in a display area of ​​a display unit provided in a vehicle cabin when deceleration of the vehicle is required; a control unit that controls the host vehicle to decelerate when deceleration of the host vehicle is necessary; and The mark display unit displays the three-dimensional shape of the mark displayed at a position farther from the vehicle so that the area thereof is larger than the three-dimensional shape of the mark displayed at a position closer to the vehicle, due to differences in the angle of the mark displayed along the driving lane.

2. The vehicle display device according to claim 1 , wherein the mark display unit displays a plurality of the marks outside the driving lane.

3. The vehicle display device according to claim 1 or 2, wherein the mark display unit displays a mark in a deceleration section where deceleration is performed.

4. 4. The display device for a vehicle according to claim 1, wherein the mark display unit displays a time remaining until deceleration is performed.

5. The vehicle display device according to any one of claims 1 to 4, a display device that displays the mark superimposed on the display area; A vehicle display system having:

6. By computer, Obtain information about the curvature of the driving lane, determining whether or not deceleration of the host vehicle is necessary based on the degree of curvature of the travel lane and the vehicle speed of the host vehicle; When the vehicle needs to decelerate, a plurality of three-dimensional arrow feather-shaped marks at different angles are superimposed and displayed along the driving lane in a display area of ​​a display unit provided in the vehicle cabin; When deceleration of the host vehicle is necessary, control the host vehicle to decelerate; As the angles of the marks displayed along the driving lane are different, the three-dimensional shape of the mark displayed at a position farther from the vehicle is displayed so as to have a larger area than the three-dimensional shape of the mark displayed at a position closer to the vehicle. Vehicle display method.

7. Obtain information about the curvature of the driving lane, determining whether or not deceleration of the host vehicle is necessary based on the degree of curvature of the travel lane and the vehicle speed of the host vehicle; When the vehicle needs to decelerate, a plurality of three-dimensional arrow feather-shaped marks at different angles are superimposed and displayed along the driving lane in a display area of ​​a display unit provided in the vehicle cabin; When deceleration of the host vehicle is necessary, control the host vehicle to decelerate; As the angles of the marks displayed along the driving lane are different, the three-dimensional shape of the mark displayed at a position farther from the vehicle is displayed so as to have a larger area than the three-dimensional shape of the mark displayed at a position closer to the vehicle. A program that causes a computer to perform a process.

Images