Display control device, display control program, and display control method

Abstract

According to the present invention, it is possible to inform the driver that the vehicle will accelerate or decelerate due to the follow-me driving control, while suppressing the inconvenience of the display. [Solution] A display control device 10 that displays an image in the display area 18 of a display device that shows the foreground of a vehicle 12 or an image that mimics the foreground, comprising: a detection unit 46 that detects a preceding vehicle 50; and a display control unit 48 that, based on the fact that acceleration or deceleration of a predetermined value or more occurs due to follow driving control with the preceding vehicle 50 as the target of following, displays an image corresponding to acceleration or deceleration between the vehicle 12 and the preceding vehicle 50 in the display area 18, and when acceleration or deceleration is performed by the driver, lowers the brightness of the mark, increases its transparency, or hides it.

Description

Technical Field

[0001] The present invention relates to a display control device, a display control program, and a display control method.

Background Art

[0002] There has been proposed a technique for improving the driver's sense of security by displaying whether ACC (Adaptive Cruise Control) control is operating on the windshield of an automobile using an AR-HUD (Augmented Reality-Head Up Display). For example, Patent Document 1 discloses a technique of displaying a linear image on an AR-HUD between a preceding vehicle that is a following target and the host vehicle during follow-up driving control in ACC control.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Generally, if AR display is always performed, there is a risk that the driver may feel annoyed because it is always superimposed on a landscape or an image imitating a landscape. In particular, since an AR-HUD overlays a display on a distant foreground, it is necessary to display an image higher above the windshield than a normal HUD, and the above-mentioned problem becomes more prominent.

[0005] The present invention has been made in view of the above problems, and an object thereof is to suppress the annoyance caused by the continuation of AR display particularly during follow-up driving control in ACC control.

Means for Solving the Problems

[0006] The first embodiment is a display control device that displays an image in the display area of ​​a display device that shows the foreground of a vehicle or an image that mimics the foreground, and comprises a detection unit that detects a preceding vehicle in the front-rear direction, and a display control unit that, based on the vehicle experiencing acceleration or deceleration of a predetermined value or more due to follow driving control with the preceding vehicle as the target of following, displays an image corresponding to acceleration or deceleration between the vehicle and the preceding vehicle in the display area, and when the driver performs an acceleration or deceleration operation, lowers the brightness of the image corresponding to acceleration or deceleration, increases its transparency, or hides it. Deceleration means negative acceleration, and deceleration of a predetermined value or more means deceleration whose absolute value is greater than the predetermined value.

[0007] According to the first aspect, the display control device, triggered by the vehicle accelerating or decelerating above a predetermined value due to follow-me driving control, displays an image corresponding to acceleration or deceleration between the vehicle and the preceding vehicle in the display area. When the driver performs acceleration or deceleration operations, the display control device reduces the brightness of the image corresponding to acceleration or deceleration, increases its transparency, or hides it, thereby suppressing excessive display and allowing the driver to intuitively understand that the change in image display is due to acceleration or deceleration caused by the driver's operation.

[0008] The second aspect is a display control device in the first aspect that causes the display mode of the image corresponding to acceleration or deceleration to differ depending on whether the vehicle is accelerating or decelerating.

[0009] In the second mode, the driver can intuitively recognize that the vehicle is accelerating or decelerating due to the adaptive cruise control.

[0010] The third aspect is a display control device in which, in the second aspect, the display control unit displays, as an image corresponding to acceleration or deceleration, a mark with a protruding front side and a recessed rear side in the longitudinal direction when the vehicle is accelerating, and a mark with a protruding rear side and a recessed front side in the longitudinal direction when the vehicle is decelerating.

[0011] According to the third mode, the driver can more intuitively recognize when the vehicle accelerates or decelerates due to the adaptive cruise control.

[0012] The fourth aspect is a display control device in the first aspect, which, when the display control unit is predicted to exceed a predetermined value in acceleration or deceleration due to the follow-up driving control, displays an image corresponding to the acceleration or deceleration before the actual acceleration or deceleration of the vehicle exceeds a predetermined value.

[0013] According to the fourth aspect, the occupants can be notified before the vehicle actually accelerates or decelerates, thus reducing driver discomfort.

[0014] The fifth aspect is a display control device in which, in the first aspect, the display control unit displays an image in which a plurality of marks spaced apart from each other are arranged in the front-to-back direction as an image corresponding to acceleration or deceleration.

[0015] According to the fifth mode, an image is displayed in which multiple marks spaced apart from each other are arranged in a front-to-back direction as an image corresponding to acceleration or deceleration. This makes it possible for the driver to intuitively understand that the multiple marks arranged in a front-to-back direction correspond to an image of acceleration or deceleration.

[0016] The sixth aspect is a display control program that causes a computer to perform a process to display an image in the display area of ​​a display device that shows an image of the foreground of a vehicle or an image that mimics the foreground, the program causing the computer to perform a process to detect a preceding vehicle in the front-rear direction, and a process to display an image corresponding to acceleration or deceleration between the vehicle and the preceding vehicle in the display area based on the fact that the vehicle experiences acceleration or deceleration of a predetermined value or more due to follow-driving control with the preceding vehicle as the target of following, and when the driver performs an acceleration or deceleration operation, the program causes the computer to perform a process to lower the brightness of the image corresponding to acceleration or deceleration, increase its transparency, or hide it.

[0017] According to the sixth aspect, the display control program, triggered by the vehicle experiencing acceleration or deceleration exceeding a predetermined value due to follow-me driving control, displays an image corresponding to acceleration or deceleration between the vehicle and the preceding vehicle in the display area. When the driver performs acceleration or deceleration operations, the brightness of the image corresponding to acceleration or deceleration is reduced, the transparency is increased, or the image is hidden, thereby suppressing excessive display and allowing the driver to intuitively understand that the change in image display is due to acceleration or deceleration caused by the driver's operation.

[0018] The seventh aspect is a display control method in which a computer performs a process to display an image in the display area of ​​a display device that shows the foreground of a vehicle or an image that mimics the foreground, the computer performing a process to detect a preceding vehicle in the front-rear direction, and based on the fact that the vehicle experiences acceleration or deceleration of a predetermined value or more due to follow-driving control with the preceding vehicle as the target of following, the computer performs a process to display an image corresponding to acceleration or deceleration between the vehicle and the preceding vehicle in the display area, and when the driver performs an acceleration or deceleration operation, the computer performs a process to lower the brightness of the image corresponding to acceleration or deceleration, increase its transparency, or hide it.

[0019] According to the seventh aspect, the display control method uses, as a trigger, the occurrence of an acceleration or deceleration of a vehicle equal to or greater than a predetermined value by follow-up travel control, and displays an image corresponding to the acceleration or deceleration between the vehicle and the preceding vehicle in the display area. When an acceleration or deceleration operation is performed by the driver, the brightness of the image corresponding to the acceleration or deceleration is reduced, or the transparency is increased, or the image is made non-displayed, so that excessive display can be suppressed, and the driver can intuitively understand that the change in the display of the image is due to the acceleration or deceleration by the driver's operation.

Advantages of the Invention

[0020] According to the present invention, it is possible to suppress the annoyance of display and inform the driver that the vehicle is accelerating or decelerating by follow-up travel control.

Brief Description of the Drawings

[0021] [Figure 1] It is a schematic view of the front part of the vehicle interior in a vehicle to which the display control device according to an embodiment of the present invention is applied, as viewed from the rear side of the vehicle. [Figure 2] It is a block diagram showing the hardware configuration of a display control system including the display control device according to an embodiment of the present invention. [Figure 3] It is a block diagram showing the functional configuration of the display control device according to an embodiment of the present invention. [Figure 4] It is a diagram showing an example of a display area according to an embodiment of the present invention. [Figure 5] It is a diagram showing an example of an image displayed by display processing during acceleration by follow-up travel control. [Figure 6] It is a diagram showing an example of an image displayed by display processing during deceleration by follow-up travel control. [Figure 7] It is a flowchart showing an example of a processing routine for executing display processing executed by an ECU. [Figure 8] It is a flowchart showing an example of a processing routine for ending display processing executed by an ECU. [Figure 9] This figure shows an example of the display processing according to the second embodiment. [Modes for carrying out the invention]

[0022] The display control device according to the present invention will be described below with reference to the drawings. The configurations of the following embodiments are illustrative, and the individual components and flowcharts are not intended to limit the technical scope of the invention to those components alone.

[0023] (First Embodiment) A vehicle 12 to which the display control device 10 according to an embodiment of the present invention is applied will be described with reference to Figure 1.

[0024] As shown in Figure 1, an instrument panel 14 is provided at the front of the passenger compartment of the vehicle 12. The instrument panel 14 extends in the vehicle width direction, and a windshield glass 16 is provided at the front end of the instrument panel 14. The windshield glass 16 extends upward from the front end of the instrument panel 14 and separates the outside from the inside of the passenger compartment of the vehicle 12.

[0025] The windshield glass 16 has a HUD projection surface 18 having a display area 18A, located above the meter display 22 on the vehicle side. The HUD projection surface 18 is a projection surface projected by a HUD device 20. Specifically, the HUD device 20 is located on the vehicle-front side of the instrument panel 14, and is configured to project an image from this HUD device 20 onto the HUD projection surface 18 on the windshield glass 16.

[0026] The instrument panel 14 is equipped with a meter display 22 having a display area 22A. The meter display 22 is connected to various meter devices mounted on the vehicle 12 and is positioned within the driver's field of vision when the driver is looking straight ahead.

[0027] The instrument panel 14 is equipped with a center display 24 having a display area 24A. The center display 24 is located in the center of the instrument panel 14 in the vehicle width direction.

[0028] (Hardware configuration of the display control system including the display control device 10) The hardware configuration of the display control system, including the display control device 10, will be described with reference to Figure 2. This display control system is mounted on a vehicle 12. The display control device 10 is composed of an ECU (Electronic Control Unit) 26. This embodiment illustrates a configuration in which processing is performed by a single ECU, but it may also be a configuration in which multiple ECUs are provided and processing is performed across multiple ECUs.

[0029] As shown in Figure 2, the ECU 26 consists of a CPU (Central Processing Unit) 28, ROM (Read Only Memory) 30, RAM (Random Access Memory) 32, storage 34, a communication interface (communication I / F) 36, and an input / output interface (input / output I / F) 38. Each component is connected to the others via a bus 40 so that they can communicate with each other.

[0030] The CPU 28 is the central processing unit, which executes various programs and controls various components. The CPU 28 reads programs from the ROM 30 or storage 34 and executes them using the RAM 32 as the working area.

[0031] ROM 30 stores various programs and data. RAM 32 temporarily stores programs or data as a working area. Storage 34 is composed of an HDD (Hard Disk Drive) or SSD (Solid State Drive) and stores various programs and data, including the operating system. In this embodiment, ROM 30 or storage 34 stores various programs and data for executing display processing.

[0032] Furthermore, each program may be provided in the form of a non-temporary recording medium such as a CD-ROM (CompactDisc Read Only Memory), DVD-ROM (Digital Versatile Disc Read Only Memory), or USB (Universal Serial Bus) memory. Alternatively, each program may be provided in the form of a download from an external network via the communication I / F36.

[0033] Communication I / F36 is an interface for the display control device 10 to communicate with servers and other devices (not shown), and standards such as Ethernet®, LTE, FDDI, and Wi-Fi® are used.

[0034] The input / output interface 38 is connected to display devices such as the HUD device 20, meter display 22, and center display 24, as well as the sensor unit 42. The HUD device 20 projects an image onto the HUD projection surface 18.

[0035] The sensor unit 42 includes various sensors such as a camera, millimeter-wave radar, LiDAR (Light Detection and Ranging), GPS sensor, vehicle speed sensor, acceleration sensor, accelerator pedal position sensor, and brake pedal depression amount sensor.

[0036] Furthermore, the vehicle 12 is equipped with a driver assistance unit 44 that executes multiple driver assistance applications in a manner that enables communication with the input / output interface 38 or the sensor unit 42, and performs calculation processing based on information from multiple sensors. Examples of driver assistance applications include collision avoidance control and adaptive cruise control (ACC). The ECU 26 can acquire information from these driver assistance applications and sensors through the input / output interface 38.

[0037] The driver assistance unit 44 is equipped with an ACC switch (not shown), which, when operated by the occupant in the driver's seat, can either switch the vehicle 12's driving state to an ACC control state or deactivate the ACC control state. When an ACC control ON signal or an ACC control OFF signal is input to the ECU 26 from the ACC switch, the ECU 26 can detect whether or not the vehicle 12 is under ACC control.

[0038] (Functional configuration of the display control device 10) The functional configuration of the display control device 10 implemented using the ECU26 will be explained with reference to Figures 3, 4, 5, and 6.

[0039] As shown in Figure 3, the ECU 26 of the display control device 10 is configured with a detection unit 46 and a display control unit 48 as its functional components. These functional components are configured to exchange various information with each other. Each functional component is realized by the CPU 28 reading and executing a program stored in the ROM 30 or storage 34.

[0040] The detection unit 46 detects a preceding vehicle 50 traveling in front of the vehicle 12 based on the output of the sensor unit 42, specifically the camera image from the front camera. The front camera is, for example, a CCD camera or a CMOS camera, and is positioned, for example, at the top center of the windshield inside the vehicle's cabin, with its optical axis aligned forward, and captures images of the area in front of the vehicle, including the preceding vehicle 50 and lane markings 52 (see Figure 4). After performing well-known binarization and edge extraction processing on the image data, pattern matching processing is performed to recognize the preceding vehicle 50 as a pattern based on a model corresponding to a preceding vehicle template.

[0041] If the display control unit 48 determines that the vehicle 12 is under ACC control based on information from the driving support unit 44, it determines whether or not follow driving control is being performed with the preceding vehicle 50 detected by the detection unit 46 as the target for follow driving.

[0042] The display control unit 48 generates images for display on the HUD projection surface 18. The images generated by the display control unit 48 include, in addition to marks 54 and 56 (see Figures 5 and 6), meter images showing, for example, the vehicle's speed, and various images intended to assist manual and automated driving.

[0043] If the display control unit 48 determines that the vehicle 12 is performing follow-driving control with the preceding vehicle 50 as the target vehicle, it obtains information regarding the follow-driving control from the driving support unit 44, specifically the target acceleration of the vehicle 12, and determines whether the absolute value of the target acceleration is equal to or greater than a predetermined value.

[0044] The display control unit 48 displays a mark 54 (see Figure 5) between the preceding vehicle 50 and vehicle 12 if the absolute value of the target acceleration is greater than or equal to a predetermined value and the target acceleration is positive. The mark 54 is an arrow-shaped mark that indicates the direction in which vehicle 12 is accelerating (towards the preceding vehicle 50). The shape of the mark is not limited to mark 54; any mark that indicates the direction, such as an arrow, mountain shape, or triangle, is acceptable. Various shapes are possible as long as they allow the driver to intuitively recognize that vehicle 12 is accelerating.

[0045] On the other hand, the display control unit 48 displays a mark 56 (see Figure 6) between the preceding vehicle 50 and vehicle 12 if the absolute value of the target acceleration is greater than or equal to a predetermined value and the target acceleration is negative. The mark 56 is an arrow-shaped mark that indicates the direction in which vehicle 12 is decelerating (towards vehicle 12). The shape of the mark is not limited to mark 56; any mark that indicates the direction, such as an arrow, mountain shape, or triangle, is acceptable. Various shapes are possible as long as the driver can intuitively recognize that vehicle 12 is decelerating.

[0046] The display control unit 48 triggers the display of a mark 54 or mark 56 corresponding to acceleration or deceleration when the vehicle 12 experiences acceleration or deceleration exceeding a predetermined value due to follow-me driving control, thereby suppressing excessive displays.

[0047] Next, the display control unit 48 determines, based on the information from the sensor unit 42, whether or not the driver has performed an acceleration or deceleration operation. If the display control unit 48 determines that the driver has performed an acceleration or deceleration operation, it terminates the display of mark 54 or mark 56. Alternatively, if the display control unit determines that the driver has performed an acceleration or deceleration operation, it may change the display state of mark 54 or mark 56. For example, it may make the mark less noticeable by reducing its brightness or increasing its transparency.

[0048] This allows for a greater reduction in excessive displays. Furthermore, because the driver can intuitively understand that the acceleration or deceleration is due to driver input rather than the adaptive cruise control system, it reduces driver discomfort.

[0049] Furthermore, the display control unit 48 obtains the target acceleration of the vehicle 12 from the driving support unit 44, and if the absolute value of the target acceleration falls below a predetermined value, it terminates the display of mark 54 or mark 56.

[0050] In this embodiment, the brightness or color of the mark may be different depending on whether the target acceleration is positive or negative. For example, the display control unit 48 may set the mark to a warm color when the target acceleration is positive, and to a cool color when the target acceleration is negative. This allows the driver to understand more intuitively whether the vehicle 12 is accelerating or decelerating.

[0051] (Processing routine related to display processing) An example of a processing routine related to display processing by the display control device 10 of this embodiment will be explained using the flowcharts shown in Figures 7 and 8. Here, Figure 7 is a flowchart showing an example of a processing routine for executing display processing performed by the ECU 26, and Figure 8 is a flowchart showing an example of a processing routine for terminating display processing performed by the ECU 26. These processing routines are executed repeatedly at predetermined intervals.

[0052] In step S58 of Figure 7 (hereinafter, "step" will be omitted), it is determined whether or not the vehicle 12 is under ACC control. If the determination in S58 is positive, the process proceeds to S60. On the other hand, if the determination in S58 is negative, the processing routine returns.

[0053] In S60, it is determined whether or not vehicle 12 is under follow-me driving control. If the determination in S60 is positive, the process proceeds to S62. On the other hand, if the determination in S60 is negative, the processing routine returns.

[0054] In S62, it is determined whether the absolute value of the target acceleration achieved by the follow-me driving control is greater than or equal to a predetermined value. If the determination in S62 is positive, the process proceeds to S64. On the other hand, if the determination in S62 is negative, the processing routine returns.

[0055] In S64, it is determined whether the target acceleration due to the follow-me driving control is positive or negative. If it is determined to be positive in S62, the process proceeds to S66. In S66, a display process is performed in which an image corresponding to acceleration is displayed between the preceding vehicle 50 and vehicle 12. On the other hand, if it is determined to be negative in S64, the process proceeds to S68. In S68, a display process is performed in which an image corresponding to deceleration is displayed between the preceding vehicle 50 and vehicle 12. Once the processes in S66 and S68 are executed, the processing routine returns.

[0056] In step S70 of Figure 8 (hereinafter, "step" will be omitted), it is determined whether or not the display process is currently running. If the determination in S70 is positive, the process proceeds to S72. On the other hand, if the determination in S62 is negative, the processing routine returns.

[0057] In S72, it is determined whether the absolute value of the target acceleration is less than a predetermined value. If the determination in S72 is positive, the process proceeds to S76, where the display process is terminated. On the other hand, if the determination in S72 is negative, the process proceeds to S7 without terminating the display process.

[0058] In S74, it is determined whether or not the driver performed an acceleration operation. If the result in S74 is positive, the process proceeds to S76, where the display process ends. If the result in S74 is negative, the processing routine returns.

[0059] (Second embodiment) The above embodiment describes a case where the display area 18A is composed of a HUD projection surface 18, but the present invention is not limited thereto. As in the second embodiment shown in Figure 9, a mark may be displayed in the display area of ​​the center display 24 provided on the instrument panel 14.

[0060] As shown in Figure 9, in the second embodiment, the display area 24A of the center display 24 is divided vertically. The upper part 78 of the display area 24A displays a foreground image showing the foreground of the vehicle 12, and the lower part 80 of the display area 24A displays a map image M showing the current position P of the vehicle 12.

[0061] In the second embodiment, the mark 54 is displayed on the center display 24 provided on the instrument panel 14. This makes it possible to suppress excessive display and reduce discomfort for occupants who view the center display 24, regardless of their seating position, similar to the first embodiment.

[0062] (Third embodiment) In the third embodiment, the image captured by the front camera constituting the sensor unit 42 and the marks are displayed in the display area 22A of the meter display 22, which is located in front of the driver's seat. Since the meter display 22 is located in front of the driver's seat, the driver in the driver's seat can view the meter display 22 with little to no movement of their gaze from the front of the vehicle.

[0063] (modified version) In the above embodiment, if the display control unit 48 predicts that the absolute value of the target acceleration due to follow-me driving control will be greater than or equal to a predetermined value, it may display an image corresponding to acceleration or deceleration before the absolute value of the actual acceleration of the vehicle 12 reaches the predetermined value. This allows the occupants to be notified before the vehicle actually accelerates or decelerates, thereby reducing driver discomfort.

[0064] Specifically, the display control unit 48 obtains the future target acceleration from the driver assistance unit 44. The future target acceleration is calculated by the driver assistance unit 44 based on the vehicle speed, the relative speed with the preceding vehicle 50 (calculated based on the phase difference between the transmitted and received waves of the millimeter-wave radar), the current distance between vehicles, and the target distance between vehicles set by the driver. For example, if the current distance between vehicles is longer than the target distance between vehicles set by the driver, the future target acceleration is calculated based on the difference and the current relative speed. Subsequently, if the display control unit 48 determines that the absolute value of the future target acceleration is greater than or equal to a predetermined value, it displays an image corresponding to acceleration or deceleration before the future target acceleration is transmitted from the driver assistance unit 44 to the actuator of the vehicle 12.

[0065] In the above embodiment, the marks may be displayed in a manner that flows in the direction of vehicle movement or in the opposite direction. For example, the display control unit 48 may display the marks 54 flowing from vehicle 12 toward the preceding vehicle 50 when the target acceleration is positive, and display the marks 56 flowing from the preceding vehicle 50 toward vehicle 12 when the target acceleration is negative. This allows the driver to understand more intuitively whether vehicle 12 is accelerating or decelerating.

[0066] In the above embodiment, the display control unit 48 may display an image that mimics the foreground in the display area of ​​the display device. For example, it may be an image in which a polygon mimicking the preceding vehicle 50 is displayed on an image that mimics a driving lane defined by lane markings 52.

[0067] In the above embodiment, the display control unit 48 may obtain the target acceleration of the vehicle 12 from the driving support unit 44, and even if the absolute value of the target acceleration falls below a predetermined value, it may continue to display the mark 54 or mark 56 until a predetermined time has elapsed from the start of the display, without ending the display. By continuing to display the mark 54 or mark 56 for a predetermined time once it has been displayed, it is possible to reduce the driver's discomfort caused by the display ending immediately after it is displayed.

[0068] In the above embodiment, the various processes that the CPU 26 reads and executes software (programs) may be executed by various processors other than the CPU. Examples of such processors include dedicated electrical circuits, which are processors with circuit configurations specifically designed to execute particular processes, such as FPGAs (Field-Programmable Gate Arrays), PLDs (Programmable Logic Devices) whose circuit configurations can be changed after manufacturing, and ASICs (Application Specific Integrated Circuits). Furthermore, each of the above processes may be executed by one of these various processors, or by a combination of two or more processors of the same or different types (for example, multiple FPGAs, and a combination of a CPU and an FPGA). Specifically, the hardware structure of these various processors is an electrical circuit that combines circuit elements such as semiconductor elements.

[0069] Although embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and various modifications are possible. For example, the processing routine described in the above embodiments is just one example, and unnecessary steps may be deleted, new steps added, or the processing order changed without departing from the spirit of the invention. [Explanation of Symbols]

[0070] 10 Display control device 12 vehicles 14. Instrument Panel 16 Windshield 18 HUD projection surface 18A display area 22 Meter Display 22A display area 24 Center Display 24A display area

Claims

1. A display control device that displays an image in the display area of ​​a display device that shows an image of the foreground of a vehicle or an image that mimics the foreground, A detection unit that detects a preceding vehicle in the forward and backward direction, Based on the fact that the vehicle experiences acceleration or deceleration exceeding a predetermined value due to follow-me driving control with the preceding vehicle as the target of following, an image corresponding to acceleration or deceleration is displayed between the vehicle and the preceding vehicle in the display area, and when the driver performs an acceleration or deceleration operation, a display control unit lowers the brightness of the image corresponding to acceleration or deceleration, increases its transparency, or hides it. A display control device equipped with the following features.

2. The display control unit changes the display mode of the image corresponding to the acceleration or deceleration depending on whether the vehicle is accelerating or decelerating. The display control device according to claim 1.

3. The display control unit displays, as an image corresponding to acceleration or deceleration, a mark with a protruding front and recessed rear in the longitudinal direction when the vehicle is accelerating, and a mark with a protruding rear and recessed front in the longitudinal direction when the vehicle is decelerating. The display control device according to claim 2.

4. When the display control unit predicts that the acceleration or deceleration due to the follow-up driving control will exceed a predetermined value, it will display an image corresponding to the acceleration or deceleration before the actual acceleration or deceleration of the vehicle exceeds the predetermined value. The display control device according to claim 1.

5. The display control unit displays an image corresponding to acceleration or deceleration, in which multiple marks spaced apart from each other are arranged in the front-to-back direction. The display control device according to claim 1.

6. A display control program that causes a computer to perform the process of displaying an image in the display area of ​​a display device that shows an image of the foreground of a vehicle or an image that mimics the foreground, A process for detecting a preceding vehicle in the forward or backward direction, Based on the fact that the vehicle experiences acceleration or deceleration exceeding a predetermined value due to follow-me driving control targeting the preceding vehicle, an image corresponding to acceleration or deceleration is displayed between the vehicle and the preceding vehicle in the display area, and when the driver performs acceleration or deceleration operation, the brightness of the image corresponding to acceleration or deceleration is reduced, the transparency is increased, or the image is hidden. A display control program that causes the computer to execute the following.

7. A display control method in which a computer performs a process to display an image in the display area of ​​a display device that shows an image of the foreground of a vehicle or an image that mimics the foreground, A process for detecting a preceding vehicle in the forward or backward direction, Based on the fact that the vehicle experiences acceleration or deceleration exceeding a predetermined value due to follow-me driving control targeting the preceding vehicle, an image corresponding to acceleration or deceleration is displayed between the vehicle and the preceding vehicle in the display area, and when the driver performs acceleration or deceleration operation, the brightness of the image corresponding to acceleration or deceleration is reduced, the transparency is increased, or the image is hidden. A display control method performed by the computer.

Images