Display control device, display system, and display control method

Abstract

To provide a display control device making it possible to recognize which of a preceding vehicle and an adjacent vehicle provides a greater slipstream effect.SOLUTION: A display control device 30 includes: a surrounding information acquisition section 41 which acquires surrounding information around an own vehicle 10; a preceding vehicle information acquisition section 42 which, on the basis of the surrounding information, acquires preceding vehicle information on a preceding vehicle traveling ahead in a travel lane of the own vehicle 10; an adjacent vehicle information acquisition section 43 which, on the basis of the surrounding information, acquires adjacent vehicle information on an adjacent vehicle traveling in an adjacent lane adjacent to the travel lane; an effect calculation section 44 which, on the basis of each of the preceding vehicle information and the adjacent vehicle information, calculates effect information on a slipstream with respect to each of the preceding vehicle and the adjacent vehicle; and a display control section 45 which, on the basis of the effect information, performs control to display an effect of the slipstream with respect to each of the preceding vehicle and the adjacent vehicle using an animation 50 moving in a vehicle rearward direction from each of a preceding vehicle display section 110A and an adjacent vehicle display section 210A.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a display control device and a display system. [Background technology]

[0002] Patent document 1 discloses a technology in which an image of the front end of a vehicle, a vehicle to be followed located in the upper area of ​​the image of the front end of the vehicle, and a barometer indicating the distance between the vehicle to be followed and the driver's vehicle are displayed on an information display located in front of the driver's seat. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-109582 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, it is preferable that the display control device be able to recognize which of the preceding vehicle and the adjacent vehicle has the greater effect of the slipstream.

[0005] An object of the present invention is to provide a display control device that can recognize whether the effect of a slipstream is greater for a leading vehicle or an adjacent vehicle. [Means for solving the problem]

[0006] The display control device of claim 1 comprises a surrounding information acquisition unit that acquires surrounding information about the surroundings of the host vehicle; a preceding vehicle information acquisition unit that acquires preceding vehicle information about a preceding vehicle traveling in front of the host vehicle's driving lane based on the surrounding information; an adjacent vehicle information acquisition unit that acquires adjacent vehicle information about an adjacent vehicle traveling in an adjacent lane adjacent to the driving lane based on the surrounding information; an effect calculation unit that calculates slipstream effect information for the preceding vehicle and the adjacent vehicle based on the preceding vehicle information and the adjacent vehicle information; and a display control unit that controls the display of the effect of the slipstream for the preceding vehicle and the adjacent vehicle as an animation that moves toward the rear of the vehicle from a preceding vehicle display unit that displays the preceding vehicle and an adjacent vehicle display unit that displays the adjacent vehicle.

[0007] The display control device according to claim 1 includes a display control unit that controls display of the effect of slipstreaming on the leading vehicle and adjacent vehicles as animation that moves from the leading vehicle display unit and the adjacent vehicle display unit toward the rear of the vehicle based on information about the effect of slipstreaming on the leading vehicle and adjacent vehicles. This allows the effect of slipstreaming on the leading vehicle and adjacent vehicles to be displayed as animation. This allows the driver to recognize which of the leading vehicle and adjacent vehicles has the greatest effect from the slipstream. As a result, the display control device allows the driver to drive with eco-driving in mind.

[0008] A display control device according to claim 2 is the display control device according to claim 1, wherein the display control unit displays the animation at a faster moving speed as the effect of the slipstream increases.

[0009] In the display control device according to claim 2, the display control unit displays the animation moving at a faster speed as the slipstream effect increases, so that when the slipstream effect is large, the animation moves at a faster speed, and when the slipstream effect is small, the animation moves at a slower speed. This makes it easier to recognize whether the slipstream effect is large for the leading vehicle or the adjacent vehicle.

[0010] A display control device according to claim 3 is the display control device according to claim 2, wherein the display control unit displays the animation larger as the effect of the slipstream increases.

[0011] In the display control device according to claim 3, the display control unit displays the animation larger the greater the effect of the slipstream, so that when the effect of the slipstream is large, the animation is displayed larger, and when the effect of the slipstream is small, the animation is displayed smaller. This makes it easier to recognize whether the effect of the slipstream is large for the leading vehicle or the adjacent vehicle.

[0012] The display system of claim 4 comprises a display control device according to any one of claims 1 to 3, and a display unit provided in front of the driver's seat in the vehicle cabin and displaying an image controlled by the display control device.

[0013] The display system according to claim 4 includes a display unit that is provided in front of the driver's seat in the vehicle interior and displays an image controlled by the display control device, so that the effect of the slipstream on the preceding vehicle is displayed in front of the driver's seat, making it easier for the driver to recognize that the effect of the slipstream is occurring.

[0014] The display control method of claim 5 acquires surrounding information about the surroundings of the host vehicle, acquires preceding vehicle information about a preceding vehicle traveling in a lane ahead of the host vehicle based on the surrounding information, acquires adjacent vehicle information about an adjacent vehicle traveling in an adjacent lane adjacent to the traveling lane based on the surrounding information, calculates slipstream effect information for the preceding vehicle and the adjacent vehicle based on the preceding vehicle information and the adjacent vehicle information, and controls the display of the effect of the slipstream for the preceding vehicle and the adjacent vehicle as an animation that moves toward the rear of the vehicle from a preceding vehicle display unit that displays the preceding vehicle and an adjacent vehicle display unit that displays the adjacent vehicle.

[0015] In the display control method according to claim 5, it is possible to recognize which of the preceding vehicle and the adjacent vehicle has the greater effect of the slipstream. [Effects of the Invention]

[0016] As described above, the display control device according to the present invention makes it possible to recognize whether the slipstream effect is greater for the leading vehicle or the adjacent vehicle. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a schematic diagram illustrating an overall system according to an embodiment. [Figure 2] 1 is a block diagram showing a functional configuration of a display control device according to an embodiment. [Figure 3] 1A and 1B are diagrams illustrating examples of display by a display control device according to an embodiment. [Figure 4] 1A and 1B are diagrams illustrating examples of display by a display control device according to an embodiment. [Figure 5] 4 is a flowchart illustrating a flow of processing by a display control device according to an embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0018] A display system 1 including a display control device 30 according to an embodiment will be described below with reference to the drawings. Behind a traveling vehicle, a phenomenon called a slipstream occurs, in which air resistance is lower than normal. By having the host vehicle enter this slipstream, air resistance is reduced, making it possible to suppress energy loss during traveling.

[0019] The display system 1 according to this embodiment will be described as an example of displaying the effect of a slipstream caused by a preceding vehicle and an adjacent vehicle traveling ahead of the vehicle. Note that the arrow UP in Fig. 1 indicates the upper side in the vertical direction of the vehicle, the arrow RH indicates the right side in the width direction of the vehicle, and the arrow FR indicates the front side in the longitudinal direction of the vehicle.

[0020] [Configuration of the vehicle 10] 1, an instrument panel 11 is provided in the front part of the passenger compartment of a vehicle 10. The instrument panel 11 extends in the vehicle width direction, and a steering wheel 12 is provided on the right side of the instrument panel 11.

[0021] A windshield glass 13 is provided at the front end of the instrument panel 11. The windshield glass 13 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.

[0022] The right end of the windshield glass 13 is fixed to a front pillar 14 on the right side of the vehicle. The front pillar 14 extends in the vertical direction of the vehicle, and the windshield glass 13 is fixed to the inner end of the front pillar 14 in the vehicle width direction. In addition, the front end of a front side window 15 is fixed to the outer end of the front pillar 14 in the vehicle width direction.

[0023] The windshield glass 13 is provided with a first display unit 21 as a display unit 20 having a display area S1 for displaying an image. The first display unit 21 is provided above the steering wheel 12 and forms a projection surface onto which an image is projected by a head-up display device 25 as a display device. Specifically, the head-up display device 25 capable of projecting an image is provided on the front side of the vehicle of the instrument panel 11, and the image is projected from the head-up display device 25 onto the first display unit 21 of the windshield glass 13.

[0024] The instrument panel 11 is provided with a second display unit 22 as a display unit 20 having a display area S2 for displaying an image, and a third display unit 23 as a display unit 20 having a display area S3 for displaying an image. The second display unit 22 is configured as a center display disposed in the center of the instrument panel 11 in the vehicle width direction. The third display unit 23 is configured as a meter display provided in front of the driver's seat.

[0025] [Configuration of Display System 1] As shown in FIG. 1, the display system 1 includes a camera 26, a vehicle distance sensor 27, a vehicle speed sensor 28, a display control device 30, a head-up display device 25, and a first display unit 21.

[0026] The camera 26 is provided on the host vehicle 10 and is attached so as to capture an image of the area ahead of the host vehicle 10.

[0027] The inter-vehicle distance sensor 27 is provided on the host vehicle 10 and detects the inter-vehicle distance between the host vehicle 10 and a preceding vehicle traveling ahead of the host vehicle 10, and the inter-vehicle distance between the host vehicle 10 and an adjacent vehicle traveling in an adjacent lane adjacent to the lane the host vehicle 10 is traveling in. The inter-vehicle distance sensor 27 may be a laser radar device, a millimeter wave radar device, or the like. The vehicle speed sensor 28 is provided on the host vehicle 10 and detects the vehicle speed of the host vehicle 10.

[0028] The display control device 30 is provided in the vehicle 10 and performs various controls. The display control device 30 can be an ECU (Electronic Control Unit).

[0029] [Hardware configuration of display control device 30] 1, the display control device 30 includes a CPU (Central Processing Unit) 31, a ROM (Read Only Memory) 32, a RAM (Random Access Memory) 33, a storage unit 34, a communication unit 35, and an input / output unit 36. Each component is connected to each other via an internal bus 37 so as to be able to communicate with each other.

[0030] The CPU 31 is a central processing unit that executes various programs and controls each part. That is, the CPU 31 reads programs from the ROM 32 or the storage unit 34 and executes the programs using the RAM 33 as a work area. The CPU 31 also controls the above-mentioned components and performs various arithmetic processing in accordance with the programs recorded in the ROM 32 or the storage unit 34.

[0031] The ROM 32 stores various programs and various data. The RAM 33 temporarily stores programs or data as a working area. The storage unit 34 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 unit 34 stores programs for performing display control processing, which will be described later.

[0032] The communication unit 35 is an interface for the display control device 30 to communicate with a server 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).

[0033] The input / output unit 36 ​​is connected to the first display unit 21, the second display unit 22, the head-up display device 25, the camera 26, the inter-vehicle distance sensor 27, the vehicle speed sensor 28, and the like.

[0034] [Functional configuration of display control device 30] In the display control device 30, the camera image captured by the camera 26, the detection information detected by the inter-vehicle distance sensor 27, and the detection information detected by the vehicle speed sensor 28 are input to a control unit 40 (see FIG. 2), and the processing information subjected to display control processing in the control unit 40 is output to the head-up display device 25. In the control unit 40, the CPU 31 executes the display control processing in accordance with a program recorded in the ROM 32 or the storage unit 34.

[0035] As shown in Figure 2, the control unit 40 functionally includes a surrounding information acquisition unit 41, a preceding vehicle information acquisition unit 42, an adjacent vehicle information acquisition unit 43, an effect calculation unit 44, and a display control unit 45.

[0036] The surrounding information acquisition unit 41 acquires surrounding information of the surroundings of the vehicle 10 based on the camera image captured by the camera 26.

[0037] The preceding vehicle information acquisition unit 42 acquires preceding vehicle information of the preceding vehicle traveling ahead in the driving lane of the subject vehicle 10 based on the camera image acquired by the surrounding information acquisition unit 41, the vehicle speed of the subject vehicle 10 detected by the vehicle speed sensor 28, and the inter-vehicle distance from the preceding vehicle detected by the inter-vehicle distance sensor 27.

[0038] Specifically, the preceding vehicle information acquisition unit 42 identifies the type of vehicle of the preceding vehicle and acquires information about the size of the preceding vehicle, for example, by image recognition, based on the camera image acquired by the surrounding information acquisition unit 41. The preceding vehicle information acquisition unit 42 also acquires information about the speed of the preceding vehicle based on the speed of the host vehicle 10 detected by the vehicle speed sensor 28 and the change in the distance to the preceding vehicle detected by the following distance sensor 27.

[0039] The adjacent vehicle information acquisition unit 43 acquires adjacent vehicle information of an adjacent vehicle traveling ahead in an adjacent lane adjacent to the lane in which the vehicle 10 is traveling, based on the camera image acquired by the surrounding information acquisition unit 41, the vehicle speed of the vehicle 10 detected by the vehicle speed sensor 28, and the inter-vehicle distance between the vehicle 10 and the adjacent vehicle detected by the inter-vehicle distance sensor 27.

[0040] Specifically, the adjacent vehicle information acquisition unit 43 identifies the vehicle type of the adjacent vehicle and acquires information about the size of the adjacent vehicle, for example, by image recognition, based on the camera image acquired by the surrounding information acquisition unit 41. In addition, the adjacent vehicle information acquisition unit 43 acquires information about the vehicle speed of the host vehicle 10 detected by the vehicle speed sensor 28 and the change in the inter-vehicle distance from the adjacent vehicle detected by the inter-vehicle distance sensor 27.

[0041] The effect calculation unit 44 calculates slipstream effect information for the preceding vehicle based on the preceding vehicle information, and calculates slipstream effect information for the adjacent vehicle based on the adjacent vehicle information.

[0042] Furthermore, the effect calculation unit 44 determines the magnitude of the effect of the slipstream on the preceding vehicle and adjacent vehicles. The effect calculation unit 44 determines that the larger the size of the preceding vehicle acquired by the preceding vehicle information acquisition unit 42, the greater the effect of the slipstream. The effect calculation unit 44 determines that the faster the vehicle speed of the preceding vehicle acquired by the preceding vehicle information acquisition unit 42, the greater the effect of the slipstream. The effect calculation unit 44 determines that the larger the size of the adjacent vehicle acquired by the adjacent vehicle information acquisition unit 43, the greater the effect of the slipstream. The effect calculation unit 44 determines that the faster the vehicle speed of the adjacent vehicle acquired by the adjacent vehicle information acquisition unit 43, the greater the effect of the slipstream.

[0043] The display control unit 45 performs control to display the effect of slipstreaming on the preceding vehicle behind the preceding vehicle display unit 110A (see FIG. 3) that displays the preceding vehicle in the driving lane, based on the effect information calculated by the effect calculation unit 44. The display control unit 45 performs control to display the effect of slipstreaming on the adjacent vehicle behind the adjacent vehicle display unit 210A (see FIG. 3) that displays the adjacent vehicle in the adjacent lane, based on the effect information calculated by the effect calculation unit 44.

[0044] Specifically, as shown in Figure 3, the display control unit 45 controls the display of the effect of the slipstream on the preceding vehicle as animation 50 on both sides of the vehicle width direction of the host vehicle display unit 10A and the preceding vehicle display unit 110A, which display the host vehicle 10, in the driving lane R1.

[0045] The display control unit 45 controls the display of the effect of the slipstream on the preceding vehicle by an animation 50 in which a mark 52 moves from the preceding vehicle display unit 110A toward the host vehicle display unit 10A. The mark 52 may be a line extending in the fore-and-aft direction of the vehicle.

[0046] The display control unit 45 performs control to display the effect of the slipstream on the adjacent vehicle in the adjacent lane R2 as animation 50 on both sides of the adjacent vehicle display unit 210A in the vehicle width direction.

[0047] The display control unit 45 controls the display of the effect of the slipstream on the adjacent vehicle by an animation 50 in which a mark 52 moves from the adjacent vehicle display unit 210A toward the rear of the vehicle from the adjacent vehicle display unit 210A. The mark 52 may be a line extending in the fore-and-aft direction of the vehicle.

[0048] 3, when the effect calculation unit 44 calculates that the effect of the slipstream of the preceding vehicle is small and the effect of the slipstream of the adjacent vehicle is large, the display control unit 45 performs control to slow down the movement speed of the mark 52 of the driving lane R1 and to increase the movement speed of the mark 52 of the adjacent lane R2. In other words, the display control unit 45 performs control to increase the movement speed of the animation 50 of the lane for which the effect calculation unit 44 calculates that the effect of the slipstream is large.

[0049] Furthermore, if the effect calculation unit 44 calculates that the effect of the slipstream of the preceding vehicle is small and the effect of the slipstream of the adjacent vehicle is large, the display control unit 45 performs control to reduce the number of marks 52 in the width direction of the driving lane R1 and increase the number of marks 52 in the width direction of the adjacent lane R2. In the example of Fig. 3, the number of marks 52 in the width direction of the vehicle of the driving lane R1 is one, and the number of marks 52 in the width direction of the vehicle of the adjacent lane R2 is three. In other words, the display control unit 45 performs control to enlarge the animation 50 of the lane for which the effect calculation unit 44 calculates that the effect of the slipstream is large.

[0050] As shown in Figure 4, if the effect calculation unit 44 calculates that the effect of the slipstream of the preceding vehicle is large and the effect of the slipstream of the adjacent vehicle is small, the display control unit 45 controls the movement speed of the mark 52 in the driving lane R1 to be faster and the movement speed of the mark 52 in the adjacent lane R2 to be slower.

[0051] Furthermore, if the effect calculation unit 44 calculates that the effect of the slipstream of the preceding vehicle is large and the effect of the slipstream of the adjacent vehicle is small, the display control unit 45 performs control to increase the number of marks 52 in the width direction of the driving lane R1 and decrease the number of marks 52 in the width direction of the adjacent lane R2. In the example of Fig. 4, the number of marks 52 in the width direction of the vehicle of the driving lane R1 is three, and the number of marks 52 in the width direction of the vehicle of the adjacent lane R2 is one.

[0052] [Display control process flow] As shown in FIG. 5, when the display control process starts, the surrounding information acquisition unit 41 acquires surrounding information of the surroundings of the vehicle 10 based on the camera image captured by the camera 26 (step S101).

[0053] Next, the preceding vehicle information acquisition unit 42 acquires preceding vehicle information of the preceding vehicle traveling ahead of the vehicle 10 in the driving lane R1 based on the camera image acquired by the surrounding information acquisition unit 41, the vehicle speed of the vehicle 10 detected by the vehicle speed sensor 28, and the distance between the vehicle 10 and the preceding vehicle detected by the vehicle distance sensor 27 (step S102).

[0054] Next, the adjacent vehicle information acquisition unit 43 acquires adjacent vehicle information of the adjacent vehicle traveling ahead of the vehicle 10 in the adjacent lane R2 based on the camera image acquired by the surrounding information acquisition unit 41, the vehicle speed of the vehicle 10 detected by the vehicle speed sensor 28, and the inter-vehicle distance from the adjacent vehicle detected by the inter-vehicle distance sensor 27 (step S103).

[0055] Next, the effect calculation unit 44 calculates slipstream effect information for the preceding vehicle and slipstream effect information for the adjacent vehicle based on the preceding vehicle information and the adjacent vehicle information (step S104).

[0056] Next, the effect calculation unit 44 determines whether the effect of the slipstream on the preceding vehicle is large (step S105). If it is determined that the effect of the slipstream on the preceding vehicle is large (YES in step S105), the process proceeds to step S106. On the other hand, if it is determined that the effect of the slipstream on the preceding vehicle is small (NO in step S105), the process proceeds to step S121.

[0057] In step S106, the effect calculation unit 44 determines whether the effect of the slipstream on the adjacent vehicle is large. If it is determined that the effect of the slipstream on the adjacent vehicle is large (YES in step S106), the process proceeds to step S107. On the other hand, if it is determined that the effect of the slipstream on the adjacent vehicle is small (NO in step S106), the process proceeds to step S109.

[0058] In step S107, the display control unit 45 performs control to increase the moving speed of the animation 50 of the driving lane R1 and the adjacent lane R2.

[0059] Next, the display control unit 45 performs control to enlarge the animation 50 of the driving lane R1 and the adjacent lane R2 (step S108), and ends the display control process.

[0060] In step S109, the display control unit 45 performs control to increase the movement speed of the animation 50 for the driving lane R1 and to decrease the movement speed of the animation 50 for the adjacent lane R2.

[0061] Next, the display control unit 45 performs control to increase the size of the animation 50 of the driving lane R1 and decrease the size of the animation 50 of the adjacent lane R2 (step S110), and ends the display control process.

[0062] In step S121, the effect calculation unit 44 determines whether the effect of the slipstream on the adjacent vehicle is large. If it is determined that the effect of the slipstream on the adjacent vehicle is large (YES in step S121), the process proceeds to step S122. On the other hand, if it is determined that the effect of the slipstream on the adjacent vehicle is small (NO in step S121), the process proceeds to step S124.

[0063] In step S122, the display control unit 45 performs control to slow down the movement speed of the animation 50 for the driving lane R1 and to speed up the movement speed of the animation 50 for the adjacent lane R2.

[0064] Next, the display control unit 45 performs control to reduce the size of the animation 50 for the driving lane R1 and increase the size of the animation 50 for the adjacent lane R2 (step S123), and ends the display control process.

[0065] In step S124, the display control unit 45 performs control to slow down the moving speed of the animation 50 of the driving lane R1 and the adjacent lane R2.

[0066] Next, the display control unit 45 performs control to reduce the size of the animation 50 of the driving lane R1 and the adjacent lane R2 (step S125), and ends the display control process.

[0067] If the effect calculation unit 44 calculates that there is almost no effect of the slipstream, the display control unit 45 may perform control so as not to display the effect of the slipstream.

[0068] [Effect] The display control device 30 of this embodiment includes a surrounding information acquisition unit 41 that acquires surrounding information about the surroundings of the vehicle 10, a preceding vehicle information acquisition unit 42 that acquires preceding vehicle information about a preceding vehicle traveling ahead of the vehicle 10 in the driving lane R1 based on the surrounding information, an adjacent vehicle information acquisition unit 43 that acquires adjacent vehicle information about an adjacent vehicle traveling in an adjacent lane R2 adjacent to the driving lane R1 based on the surrounding information, an effect calculation unit 44 that calculates slipstream effect information for the preceding vehicle and adjacent vehicles based on the preceding vehicle information and adjacent vehicle information, and a display control unit 45 that controls the display of the effect of the slipstream for the preceding vehicle and adjacent vehicles as an animation 50 that moves toward the rear of the vehicle from the preceding vehicle display unit 110A and the adjacent vehicle display unit 210A based on the effect information (see Figure 2).

[0069] By providing a display control unit 45 that controls display of the effect of slipstreaming on the preceding vehicle and adjacent vehicles based on the effect information as animation 50 that moves from the preceding vehicle display unit 110A and the adjacent vehicle display unit 210A toward the rear of the vehicle, the effect of slipstreaming on the preceding vehicle and adjacent vehicles is displayed as animation. This makes it possible to recognize which vehicle, the preceding vehicle or the adjacent vehicle, has the greatest effect from the slipstream. As a result, the driver can drive with eco-driving in mind.

[0070] In the display control device 30 according to this embodiment, the greater the effect of the slipstream, the faster the moving speed of the animation 50 is displayed by the display control unit 45 (see FIGS. 3 and 4).

[0071] The display control unit displays the animation 50 at a faster moving speed the greater the effect of the slipstream, so that when the effect of the slipstream is great, the animation 50 moves at a faster moving speed, and when the effect of the slipstream is small, the animation 50 moves at a slower moving speed. This makes it easier to recognize whether the effect of the slipstream is great for the leading vehicle or the adjacent vehicle.

[0072] In the display control device 30 according to this embodiment, the larger the effect of the slipstream, the larger the animation 50 is displayed by the display control unit 45 (see FIGS. 3 and 4).

[0073] The display control unit 45 displays the animation 50 larger the greater the effect of the slipstream, so that when the effect of the slipstream is large, the animation 50 is displayed larger, and when the effect of the slipstream is small, the animation 50 is displayed smaller. This makes it easier to recognize whether the effect of the slipstream is greater for the leading vehicle or the adjacent vehicle.

[0074] The display system 1 according to this embodiment includes a display control device 30 and a first display unit 21 that is provided in front of the driver's seat in the vehicle interior and displays an image controlled by the display control device 30 (see FIG. 1).

[0075] The first display unit 21 is provided in front of the driver's seat in the vehicle interior and displays an image controlled by the display control device, so that the effect of the slipstream on the preceding vehicle is displayed in front of the driver's seat, making it easier for the driver to recognize that the effect of the slipstream is occurring.

[0076] In the display control method of this embodiment, surrounding information about the surroundings of the vehicle 10 is acquired, and based on the surrounding information, preceding vehicle information about a preceding vehicle traveling ahead of the vehicle 10 in the driving lane R1 is acquired, and based on the surrounding information, adjacent vehicle information about an adjacent vehicle traveling in an adjacent lane R2 adjacent to the driving lane R1 is acquired, and based on the preceding vehicle information and adjacent vehicle information, slipstream effect information for the preceding vehicle and adjacent vehicles is calculated, and based on the effect information, the effect of the slipstream on the preceding vehicle and adjacent vehicles is displayed as an animation 50 that moves from the preceding vehicle display unit 110A and the adjacent vehicle display unit 210A toward the rear of the vehicle.

[0077] The program of this embodiment causes the computer to execute a process of acquiring peripheral information about the surroundings of the vehicle 10, acquiring preceding vehicle information about a preceding vehicle traveling ahead of the vehicle 10 in the driving lane R1 based on the peripheral information, acquiring adjacent vehicle information about an adjacent vehicle traveling in an adjacent lane R2 adjacent to the driving lane R1 based on the peripheral information, calculating slipstream effect information for the preceding vehicle and adjacent vehicles based on the preceding vehicle information and adjacent vehicle information, and controlling the display of the effect of the slipstream for the preceding vehicle and adjacent vehicles as an animation 50 that moves toward the rear of the vehicle from the preceding vehicle display unit 110A and the adjacent vehicle display unit 210A based on the effect information.

[0078] The display control device 30 according to the embodiment has been described above based on the above embodiment. However, the specific configuration is not limited to this embodiment, and design changes are permitted as long as they do not deviate from the gist of the invention according to each claim in the scope of the claims.

[0079] In the above embodiment, an example has been shown in which the greater the slipstream effect, the faster the movement speed of the mark 52 is increased and the larger the animation 50 is displayed. However, the greater the slipstream effect, the faster the movement speed of the mark may be increased or the larger the animation may be displayed. Furthermore, the greater the slipstream effect, the longer the mark may be or the thicker the mark may be.

[0080] In the above embodiment, the mark 52 is a line extending in the longitudinal direction of the vehicle. However, the mark may have any shape that represents wind, for example, a shape extending in the transverse direction of the vehicle.

[0081] In the above embodiment, an example was shown in which the effect of the slipstream on the leading vehicle was displayed using the animation 50. However, the effect of the slipstream on the leading vehicle may be displayed using a still image instead of an animation.

[0082] In the above embodiment, an example was shown in which the image showing the effect of slipstreaming on the preceding vehicle is output to the head-up display device 25 and projected onto the first display unit 21. However, the image showing the effect of slipstreaming on the preceding vehicle may also be output to the second display unit 22 or the third display unit 23.

[0083] In the above embodiment, the processing executed by the CPU 31 after reading the program may be executed by various processors other than the CPU 31. Examples of such processors include dedicated electrical circuits, such as programmable logic devices (PLDs) (such as field-programmable gate arrays (FPGAs)) whose circuit configuration can be changed after manufacture, and application-specific integrated circuits (ASICs) that are processors having a circuit configuration specifically designed to execute specific processing. Furthermore, the processing may be executed by one of these various processors, or by a combination of two or more processors of the same or different types, such as multiple FPGAs or a combination of a CPU and an FPGA. Furthermore, the hardware structure of these various processors is, more specifically, an electrical circuit that combines circuit elements such as semiconductor elements.

[0084] In the above embodiment, various data are stored in the storage unit 34, but this is not limiting. For example, a non-transitory recording medium such as a CD (Compact Disk), a DVD (Digital Versatile Disk), or a USB (Universal Serial Bus) memory may be used as the storage unit. In this case, various programs and data are stored in these recording media. [Explanation of symbols]

[0085] 1 Display System 10 Vehicle 10A Vehicle display unit 21 First display unit (example of display unit) 30 Display control device 41 Surrounding information acquisition unit 42 Leading vehicle information acquisition unit 43 Adjacent vehicle information acquisition unit 44 Effect Calculation Section 45 Display control unit 50 Animation 110A Leading vehicle display unit 210A Adjacent vehicle display R1 driving lane R2 adjacent lane

Claims

1. a surrounding information acquisition unit that acquires surrounding information about the surroundings of the host vehicle; a preceding vehicle information acquisition unit that acquires preceding vehicle information of a preceding vehicle traveling ahead of the host vehicle in a traveling lane based on the surrounding information; an adjacent vehicle information acquisition unit that acquires adjacent vehicle information of an adjacent vehicle traveling in an adjacent lane adjacent to the driving lane based on the surrounding information; an effect calculation unit that calculates slipstream effect information for the leading vehicle and the adjacent vehicle based on the leading vehicle information and the adjacent vehicle information; a display control unit that controls display of the effect of the slipstream on the leading vehicle and the adjacent vehicle based on the effect information as an animation moving from a leading vehicle display unit that displays the leading vehicle and an adjacent vehicle display unit that displays the adjacent vehicle toward the rear of the vehicle; A display control device comprising:

2. The display control unit displays the animation at a faster moving speed as the slipstream effect increases. The display control device according to claim 1 .

3. The display control unit displays the animation larger as the slipstream effect increases. The display control device according to claim 2 .

4. A display control device according to any one of claims 1 to 3; a display unit provided in front of the driver's seat in the vehicle interior, the display unit displaying an image controlled by the display control device; A display system comprising:

5. Obtaining surrounding information around the vehicle, acquiring leading vehicle information of a leading vehicle traveling ahead of the host vehicle in a traveling lane based on the surrounding information; acquiring adjacent vehicle information of an adjacent vehicle traveling in an adjacent lane adjacent to the driving lane based on the surrounding information; calculating slipstream effect information for the leading vehicle and the adjacent vehicle based on the leading vehicle information and the adjacent vehicle information; Based on the effect information, the effect of the slipstream on the preceding vehicle and the adjacent vehicle is displayed as an animation moving from a preceding vehicle display unit that displays the preceding vehicle and an adjacent vehicle display unit that displays the adjacent vehicle toward the rear of the vehicle. Display control method.

Images