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

Abstract

To provide a display control device for a vehicle, a display control system for a vehicle, a vehicle, a display control method for a vehicle, and a program, which allow an occupant to quickly grasp a lane change status.SOLUTION: A display control device for a vehicle, which determines whether lane change is necessary on the basis of at least one of a travel planned route and a peripheral status, and displays information on the lane change on a display area V3 around a driving seat, when the lane change is necessary, changes information displayed on the display area between lane change aimed at passing of a front vehicle and lane change aimed at other purpose than the passing.SELECTED DRAWING: Figure 4

Description

[Technical Field]

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

[0002] Patent document 1 discloses a display device that displays lane markings corresponding to a first lane and a second lane on a display unit installed inside the vehicle cabin before the vehicle changes lanes from a first lane in which the vehicle is traveling to a second lane different from the first lane. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-41288 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the device described in Patent Document 1, when a vehicle changes lanes due to a driving assistance function or the like, the purpose of the lane change cannot be distinguished at a glance, so there is room for improvement in terms of allowing occupants to quickly understand the lane change situation.

[0005] An object of the present invention is to provide a vehicle display control device, a vehicle display control system, a vehicle, a vehicle display control method, and a program that enable an occupant to quickly grasp the lane change situation. [Means for solving the problem]

[0006] The display control device for a vehicle according to claim 1 determines whether or not a lane change is necessary based on at least one of a planned driving route and a surrounding situation, and when a lane change is necessary, displays a message in a display area around the driver's seat. Including the planned driving route A display control device for a vehicle that displays information about lane changes, Depending on the purpose of the lane change Display in the display area Display manner of the planned driving routeChange the

[0007] The vehicle display control device according to claim 1 determines whether a lane change is necessary based on at least one of the planned driving route and the surrounding conditions. If a lane change is necessary, information about the lane change is displayed in a display area around the driver's seat. This allows the occupants to be notified that a lane change will occur when the vehicle changes lanes due to driving assistance or the like.

[0008] The vehicle display control device also changes the information displayed in the display area depending on whether the lane change is for the purpose of overtaking a vehicle ahead or for a purpose other than overtaking, allowing the occupant to quickly determine whether the purpose of the lane change is to overtake or not simply by checking the information displayed in the display area.

[0009] The vehicle display control device according to claim 2 is the device according to claim 1, which changes the display mode of the vehicle's planned driving route depending on whether the lane change is for the purpose of overtaking a vehicle ahead or for a purpose other than overtaking.

[0010] In the vehicle display control device according to claim 2, the occupant can quickly determine whether the purpose of the lane change is to overtake or not simply by checking the planned driving route of the vehicle displayed in the display area.

[0011] The display control device for a vehicle according to claim 3 is the display control device according to claim 1, wherein the purpose of the lane change is displayed in the display area using at least one of text and an icon.

[0012] In the vehicle display control device according to claim 3, at least one of text and an icon is displayed in the display area, so that the occupant can directly understand the purpose of the lane change.

[0013] The vehicle display control device according to claim 4 is in claim 2, and changes the information displayed in the display area depending on whether the lane change is for a purpose other than overtaking, such as a lane change to head towards an exit of a motorway or a lane change to enter a branch road.

[0014] The vehicle display control device according to claim 4 can distinguish between lane changes to head towards an exit of a motorway and lane changes to enter a fork in the road, in addition to lane changes to overtake a vehicle ahead.

[0015] A display control device for a vehicle according to claim 5 is the display control device according to claim 4, wherein when changing lanes to head towards an exit of an expressway, the tip of the planned driving route is displayed in the form of an arrow.

[0016] In the display control device for a vehicle according to claim 5, the occupant can grasp the purpose of the lane change simply by looking at the end of the planned driving route displayed in the display area.

[0017] A display control device for a vehicle according to a sixth aspect of the present invention is the display control device according to the fourth aspect of the present invention, wherein, when changing lanes to enter a branching road, the end of the planned driving route is displayed intermittently.

[0018] In the display control device for a vehicle according to claim 6, the occupant can grasp the purpose of the lane change simply by looking at the end of the planned driving route displayed in the display area.

[0019] A vehicle display control system according to a seventh aspect of the present invention includes the vehicle display control device according to any one of the first to sixth aspects of the present invention, and a display device that displays information related to lane changes in the display area.

[0020] In the vehicle display control system according to claim 7, the vehicle display control device causes the display device to display information about lane changes in the display area. At this time, by changing the information displayed in the display area depending on the purpose of the lane change, the occupant can easily confirm the purpose of the lane change.

[0021] An eighth aspect of the present invention provides a vehicle display control system according to the seventh aspect, wherein the display device is a head-up display device capable of projecting an image onto a windshield glass.

[0022] In the vehicle display control system according to claim 8, the head-up display device projects an image onto the windshield glass, allowing the occupant to confirm the purpose of the lane change while keeping their eyes directed forward.

[0023] A vehicle according to a ninth aspect of the present invention includes the vehicle display control system according to the eighth aspect of the present invention.

[0024] A display control method for a vehicle according to claim 10 determines whether or not a lane change is necessary based on at least one of a planned driving route and a surrounding situation, and if a lane change is necessary, displays a message in a display area around the driver's seat. Including the planned driving route A vehicle display control method for displaying information about lane changes, comprising: Depending on the purpose of the lane change Display in the display area Display manner of the planned driving route Change the

[0025] Claim 11 The program determines whether or not a lane change is necessary based on at least one of the planned driving route and the surrounding conditions, and if a lane change is necessary, displays a message in a display area around the driver's seat. Including the planned driving route A program that causes a computer to execute a process of displaying information about lane changes, Depending on the purpose of the lane change Display in the display area Display manner of the planned driving route The computer executes a process that changes the [Effects of the Invention]

[0026] As described above, the vehicle display control device, vehicle display control system, vehicle, vehicle display control method, and program according to the present invention allow an occupant to quickly grasp the lane change situation. [Brief explanation of the drawings]

[0027] [Figure 1] 1 is a schematic diagram of a front portion of a vehicle interior of a vehicle to which a vehicular display control device 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 control device according to an embodiment; [Figure 3]1 is a block diagram showing a functional configuration of a vehicle display control device according to an embodiment; [Figure 4] 10A and 10B are diagrams showing an example of a display area in the embodiment, and are examples of a display when changing lanes to overtake a vehicle ahead. [Figure 5] 10A and 10B are diagrams showing examples of display areas in an embodiment, and are examples of display when changing lanes to enter a branching road. [Figure 6] 10A and 10B are diagrams showing examples of display areas in an embodiment, and are examples of display when changing lanes to head toward an exit of a highway. [Figure 7] 10A and 10B are diagrams showing examples of display areas in an embodiment, and are examples of display when changing lanes to avoid an obstacle. [Figure 8] 10 is a flowchart illustrating an example of the flow of a display process according to an embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0028] A vehicle display control system 10 including a vehicle display control device 28 according to an embodiment will be described with reference to the drawings. Note that the arrow UP in Fig. 1 indicates the upper side in the vehicle vertical direction, and the arrow RH indicates the right side in the vehicle width direction. In the following description, the vertical direction and the left-right direction refer to the up and down in the vehicle vertical direction and the left and right in the vehicle width direction, respectively.

[0029] As shown in Fig. 1, an instrument panel 14 is provided in the front 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. However, the present invention is not limited to this, and may also be applied to a vehicle in which the driver's seat is located on the left side of the vehicle.

[0030] 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.

[0031] 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).

[0032] Here, a first display unit 24 having an image display area V1 is provided on the instrument panel 14. The first display unit 24 is configured as a meter display provided in front of the driver's seat on the vehicle right side of the instrument panel 14. 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 forward.

[0033] 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.

[0034] 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 head-up display device 46 (see FIG. 2 ) serving as a display device. Specifically, the head-up display device 46 capable of projecting an image is provided on the vehicle front side of the instrument panel 14, and an image is projected from this head-up display device 46 onto the third display unit 26 of the windshield glass 18. In other words, the third display unit 26 is configured as part of the windshield glass 18 that serves as the projection surface for the head-up display device 46.

[0035] Here, the vehicle 12 is provided with a vehicle display control device 28 that constitutes the vehicle display control system 10. The vehicle display control device 28 of this embodiment is, for example, an ECU (Electronic Control Unit) that performs various controls.

[0036] (Hardware configuration of the vehicle display control device 28) 2, the vehicle display control device 28 includes a CPU (Central Processing Unit: processor) 30, a ROM (Read Only Memory) 32, a RAM (Random Access Memory) 34, a storage 36, a communication interface (communication I / F) 38, and an input / output interface (input / output I / F) 40. Each component is connected to each other via an internal bus 42 so as to be able to communicate with each other.

[0037] 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.

[0038] 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 and the like.

[0039] The communication interface 38 is an interface through which the vehicle display control device 28 communicates 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).

[0040] The input / output interface 40 is connected to a gaze detection sensor 44, the first display unit 24, the second display unit 25, and a head-up display device 46. An image is projected onto the third display unit 26 by the head-up display device 46.

[0041] The gaze detection sensor 44 is provided, for example, on the instrument panel 14, and is arranged facing the face of the occupant (driver) seated in the driver's seat. The gaze detection sensor 44 detects the gaze direction of the occupant by recognizing the eyes of the occupant using principles such as the corneal reflex method and the scleral reflex method.

[0042] (Functional configuration of the vehicle display control device 28) The vehicular display control device 28 uses the above hardware resources to realize various functions. The functional configuration realized by the vehicular display control device 28 will be described with reference to FIG.

[0043] 3, the vehicle display control device 28 is configured to include, as functional components, a planned driving route acquisition unit 52, a surrounding conditions acquisition unit 54, a lane change necessity determination unit 56, and an information display unit 58. Each functional component is realized by the CPU 30 reading and executing a program stored in the ROM 32 or storage 36.

[0044] The planned driving route acquisition unit 52 acquires information about the planned driving route set by a navigation system or the like. For example, the occupant inputs the destination into a navigation system or the like, and the planned driving route to the destination is set. The planned driving route includes information about roads along which the vehicle is to travel, and location information about intersections where the vehicle will change course, such as turning right or left. Furthermore, if the planned driving route includes a motorway, location information about branching roads and entrances and exits to the motorway is also included.

[0045] The planned driving route may be stored in a storage mounted on the vehicle 12, or may be stored outside the vehicle 12, such as in a server. When the planned driving route is stored in the storage of the vehicle 12, the planned driving route acquisition unit 52 accesses the storage to acquire information about the planned driving route. When the planned driving route is stored in a server or the like outside the vehicle 12, the planned driving route acquisition unit 52 may acquire the planned driving route from the server via the communication I / F 38.

[0046] The surrounding condition acquisition unit 54 acquires the surrounding conditions of the vehicle 12 based on signals from a plurality of sensors mounted on the vehicle 12. For example, the vehicle 12 is equipped with cameras such as 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 the sides of the vehicle. The vehicle 12 is also equipped with radars for detecting obstacles in the vicinity. The surrounding condition acquisition unit 54 acquires information about other vehicles traveling around the vehicle 12, information about obstacles, etc., based on signals received from these cameras and radars.

[0047] The lane change necessity determination unit 56 determines whether a lane change is necessary based on at least one of the planned driving route and the surrounding conditions. For example, the lane change necessity determination unit 56 determines that a lane change is necessary when the vehicle is approaching a right or left turn point and is traveling in a lane different from the lane in which the right or left turn will be made, based on information about the planned driving route acquired by the planned driving route acquisition unit 52.

[0048] In addition, when the vehicle is approaching an entry point to a branch road and is traveling in a lane that is not adjacent to the branch road, the lane change necessity determination unit 56 determines that it is necessary to change lanes to a lane adjacent to the branch road.

[0049] Furthermore, when the vehicle is traveling in a lane other than the lane leading to the entrance / exit of a highway, such as when the vehicle is approaching an entrance / exit of a highway, the lane change necessity determination unit 56 determines that it is necessary to change lanes to the lane leading to the entrance / exit.

[0050] Furthermore, the lane change necessity determination unit 56 determines that a lane change is necessary to overtake if the speed of the vehicle ahead is slow, based on the surrounding conditions of the vehicle 12 acquired by the surrounding condition acquisition unit 54. For example, consider a state in which ACC (active cruise control), a driving assistance function, is enabled. In this state, if the speed of the vehicle ahead is slower than the speed set for ACC and the inter-vehicle distance from the vehicle ahead is less than a predetermined distance, the lane change necessity determination unit 56 may determine that a lane change is necessary to overtake.

[0051] In addition, when an obstacle such as a fallen object is detected ahead of the driving lane from the surrounding conditions of the vehicle 12 acquired by the surrounding conditions acquisition unit 54, the lane change necessity determination unit 56 determines that a lane change is necessary to avoid the obstacle.

[0052] When a lane change is necessary, the information display unit 58 displays information about the lane change in a display area around the driver's seat. Specifically, when the lane change necessity determination unit 56 determines that a lane change is necessary, the information display unit 58 displays information about the lane change in at least one of the display areas V1, V2, and V3.

[0053] In this embodiment, the information display unit 58 changes the information displayed depending on the purpose of the lane change. Display examples of lane changes by the information display unit 58 will be described with reference to Figs. 4 to 7. In Figs. 4 to 7, the vehicle 12 is traveling on a motorway and ACC, which is one of the driving assistance functions, is enabled. Therefore, the lane change of the vehicle 12 is executed by the system. The display examples shown in Figs. 4 to 7 are merely examples, and the present invention is not limited to these display examples.

[0054] FIG. 4 is a diagram showing a display example of the display area V3 in this embodiment, which is a display example when changing lanes to overtake a vehicle ahead.

[0055] As shown in Fig. 4, the ACC set speed, current vehicle speed, etc. are displayed in the lower part of the display area V3. Also, an icon indicating that ACC is enabled is displayed to the left of the vehicle speed. Note that the display in the lower part of the display area V3 is not particularly limited, and information different from that shown in Fig. 4 may be displayed.

[0056] A planned driving route 62 for the vehicle 12 is displayed in the center of the display area V3, and the information display unit 58 changes the display mode of the planned driving route 62 to make the occupant aware of the purpose of the lane change. In Fig. 4, the planned driving route 62 is heading toward the lane adjacent to the driving lane on the right, suggesting that a lane change will be made to the right lane. In addition, the leading end of the planned driving route 62 is displayed so that it gradually fades.

[0057] In Figure 4, three rectangles are spaced apart on the planned driving route 62, and the spacing between these rectangles is displayed so that it changes depending on the vehicle speed, but this is not limited to this, and the rectangles do not necessarily have to be displayed.

[0058] In the upper right corner of the display area V3, the purpose of the lane change is indicated by characters 64. In FIG. 4, it is indicated that the lane change is to overtake a vehicle ahead.

[0059] FIG. 5 is a diagram showing a display example of the display area V3 in this embodiment, which is a display example when changing lanes to enter a branching road.

[0060] As shown in FIG. 5, when changing lanes to enter a branch road, the end of the planned driving route 62 extends toward the branch road, and the end of the planned driving route 62 is displayed intermittently.

[0061] In the upper right corner of the display area V3, the purpose of the lane change is displayed by characters 64. In FIG. 5, it is displayed that the lane change is to enter a branching road.

[0062] FIG. 6 is a diagram showing a display example of the display area V3 in this embodiment, which is a display example when changing lanes to head towards the exit of a motorway.

[0063] As shown in Figure 6, when changing lanes to head towards the exit of a highway, the end of the planned driving route 62 extends in the direction leading to the exit, and the end of the planned driving route 62 is displayed as an arrow.

[0064] In the upper right corner of the display area V3, the purpose of the lane change is displayed by characters 64. In FIG. 6, it is displayed that the lane change is to head towards the exit of a freeway.

[0065] FIG. 7 is a diagram showing a display example of the display area V3 in this embodiment, which is a display example when changing lanes to avoid an obstacle.

[0066] As shown in FIG. 7, when changing lanes to avoid an obstacle, the planned driving route 62 is directed toward the adjacent lane on the right side of the driving lane, suggesting that the lane will be changed to the right lane. The leading edge of the planned driving route 62 is displayed to gradually fade. Furthermore, the original planned driving route 64 is displayed in a toned-down color. An image 66 simulating an obstacle may also be displayed in the display area V3.

[0067] (action) Next, the operation of this embodiment will be described.

[0068] (Display processing) An example of a display process for displaying information about lane changes on the third display unit 26, which is the projection screen of the head-up display device 46, will be described with reference to the flowchart shown in Fig. 8. This display process is executed by the CPU 30 reading a display program from the ROM 32 or storage 36, and expanding and executing the program in the RAM 34. Note that in the present embodiment, as an example, the display process is executed at predetermined intervals when the vehicle 12 is traveling on a motorway and the ACC is enabled.

[0069] In step S102, the CPU 30 acquires information about the planned driving route. Specifically, the CPU 30 acquires the planned driving route of the vehicle 12 using the function of the planned driving route acquisition unit 52. For example, the CPU 30 may acquire only the planned driving route up to the upcoming event that requires a lane change.

[0070] The CPU 30 acquires the surrounding conditions of the vehicle 12 in step S104. Specifically, the CPU 30 acquires the surrounding conditions of the vehicle 12 using the function of the surrounding conditions acquisition unit .

[0071] In step S106, the CPU 30 determines whether or not it is necessary for the vehicle 12 to change lanes. Specifically, the CPU 30 determines whether or not it is necessary for the vehicle 12 to change lanes, using the function of the lane change necessity determination unit 56, based on the information acquired by the planned driving route acquisition unit 52 and the information acquired by the surrounding condition acquisition unit 54.

[0072] If the CPU 30 determines in step S106 that a lane change is necessary, the process proceeds to step S108. On the other hand, if the CPU 30 determines in step S106 that a lane change is not necessary, the display process ends.

[0073] In step S108, the CPU 30 displays information about the lane change in a predetermined display area. In this embodiment, the CPU 30 uses the function of the information display unit 58 to display in the display area V3 of the third display unit 26 that a lane change will be made. Specifically, the CPU 30 displays in the display area V3 a planned driving route 62 and text 64 indicating the lane change (see FIGS. 4 to 7). At this time, the CPU 30 changes the information displayed in the display area V3 depending on the purpose of the lane change. Then, the CPU 30 ends the display process.

[0074] After the lane change information is displayed, the driving assistance function installed in the vehicle 12 controls the steering, accelerator, etc., and the vehicle 12 changes lanes along the planned driving route 62.

[0075] As described above, the vehicle display control system 10 equipped with the vehicle display control device 28 according to this embodiment determines whether or not a lane change is necessary based on at least one of the planned driving route of the vehicle 12 and the surrounding conditions. Furthermore, if a lane change is necessary, information about the lane change is displayed in the display area V3 around the driver's seat. This allows the occupants to be notified that a lane change will occur when the vehicle 12 changes lanes due to driving assistance or the like.

[0076] In this embodiment, the information displayed in the display area V3 is changed depending on whether the lane change is for the purpose of overtaking a vehicle ahead, as shown in Fig. 4, or for the purpose of a lane change other than overtaking, as shown in Figs. 5 to 7. This allows the occupant to quickly determine whether the purpose of the lane change is to overtake or not, simply by checking the information displayed in the display area V3.

[0077] In particular, in this embodiment, the display mode of the planned driving route 62 is changed depending on the purpose of the lane change, so that the occupant can quickly determine whether the purpose of the lane change is to overtake or not simply by checking the planned driving route 62 of the vehicle displayed in the display area V3.

[0078] Furthermore, in this embodiment, at least one of characters and an icon indicating the purpose of the lane change is displayed in the display area V3, so that the occupant can directly grasp the purpose of the lane change.

[0079] Furthermore, in this embodiment, in addition to lane changes for the purpose of overtaking a vehicle ahead, it is possible to distinguish between lane changes for heading towards an exit of an expressway and lane changes for entering a branch road. In particular, the occupant can grasp the purpose of a lane change simply by looking at the end of the planned travel route 62 displayed in the display area V3.

[0080] The vehicle display control system 10, the vehicle display control device 28, and the vehicle 12 according to the embodiment have been described above, but it goes without saying that the present invention can be embodied in various forms without departing from the spirit and scope of the present invention. For example, in the above embodiment, a configuration has been described in which information about lane changes is displayed in the display area V3 of the third display unit 26, but the present invention is not limited to this. For example, a configuration in which information about lane changes is displayed in the display area V1 of the first display unit 24 or the display area V2 of the second display unit 25 may also be adopted.

[0081] Furthermore, information about lane changes may be displayed in more than one of the display areas V1, V2, and V3.

[0082] Furthermore, when displaying information in the display area V3, the information about lane changes may be displayed superimposed on the foreground seen through the windshield glass 18. The superimposed display can be performed using known AR (Augmented Reality) technology, and for example, the gaze direction of the occupant may be detected by the gaze detection sensor 44, and the display position of the information may be adjusted based on this gaze direction.

[0083] Furthermore, in the above embodiment, the shape of the planned driving route 62 is changed to make the occupant aware that the purpose of the lane change is different, but this is not limited to this. For example, the color and size of the planned driving route 62 may be changed. Also, the purpose of the lane change may be indicated only by the text 64, without changing the shape of the planned driving route 62 itself. Here, the display position and size of the text 64 are not limited.

[0084] In the above embodiment, only an image resembling a lane and the planned driving route 62 are displayed in the display area V3, but this is not limiting and an image resembling the vehicle itself may also be added. In this case, the image is displayed from a third-person perspective, making it easier to grasp the planned driving route of the vehicle.

[0085] Furthermore, in the above embodiment, the lane change necessity determination unit 56 determines whether or not a lane change is necessary based on at least one of the information about the planned driving route acquired by the planned driving route acquisition unit 52 and the surrounding conditions of the vehicle 12 acquired by the surrounding conditions acquisition unit 54. However, this is not limiting. For example, the lane change necessity determination unit 56 may determine whether or not a lane change is necessary based only on the information about the planned driving route acquired by the planned driving route acquisition unit 52. Alternatively, the lane change necessity determination unit 56 may determine whether or not a lane change is necessary based only on the surrounding conditions of the vehicle 12 acquired by the surrounding conditions acquisition unit 54.

[0086] Furthermore, the processing performed by the CPU 30 after reading the program in the above embodiment may be performed by various processors other than the CPU 30. 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 fabrication, and application-specific integrated circuits (ASICs) that are processors with circuit configurations specifically designed to perform specific processing. The processing may be performed 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. The hardware structure of these various processors is, more specifically, an electrical circuit that combines circuit elements such as semiconductor devices.

[0087] Furthermore, in the above embodiment, various data is stored in the storage 36, 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, data, etc. are stored in these recording media.

[0088] Furthermore, the processing flow described in the above embodiment is an example, and unnecessary steps may be deleted, new steps may be added, or the processing order may be changed within the scope of the main idea.

[0089] The display process described in the above embodiment is applicable to both an autonomously driven vehicle and a manually driven vehicle, as well as to a manually driven vehicle and an autonomously driven vehicle. [Explanation of symbols]

[0090] 10. Vehicle display control system 12 vehicles 18 Windshield glass 28 Vehicle display control device 46 Head-up display device (display device) 62 Planned driving route V3 display area

Claims

1. Determine whether or not a lane change is necessary based on at least one of the planned driving route and the surrounding conditions; A display control device for a vehicle that, when a lane change is required, displays information about the lane change, including the planned driving route, in a display area around a driver's seat, A display control device for a vehicle that changes a display mode of the planned driving route displayed in the display area depending on the purpose of the lane change.

2. 2. The vehicle display control device according to claim 1, wherein the display mode of the planned driving route of the vehicle is changed depending on whether the lane change is for the purpose of overtaking a vehicle ahead or for the purpose of other than overtaking.

3. The display control device for a vehicle according to claim 1 , wherein the purpose of the lane change is displayed in the display area by at least one of text and an icon.

4. 3. A vehicle display control device according to claim 2, wherein the information displayed in the display area is changed depending on whether the lane change is for a purpose other than overtaking, such as a lane change to head towards an exit of a motorway or a lane change to enter a branch road.

5. 5. The display control device for a vehicle according to claim 4, wherein when the vehicle changes lanes to head toward an exit of a highway, the tip of the planned driving route is displayed in the form of an arrow.

6. 5. The display control device for a vehicle according to claim 4, wherein the end of the planned driving route is intermittently displayed when the vehicle changes lanes to enter a branching road.

7. The vehicle display control device according to any one of claims 1 to 6, a display device that displays information about lane changes in the display area; A vehicle display control system having:

8. 8. The vehicle display control system according to claim 7, wherein the display device is a head-up display device capable of projecting an image onto a windshield glass.

9. A vehicle comprising the vehicular display control system according to claim 8.

10. Determine whether or not a lane change is necessary based on at least one of the planned driving route and the surrounding conditions; A display control method for a vehicle that, when a lane change is required, displays information about the lane change, including the planned driving route, in a display area around a driver's seat, comprising: changing a display mode of the planned driving route displayed in the display area according to the purpose of the lane change; A display control method for a vehicle.

11. Determine whether or not a lane change is necessary based on at least one of the planned driving route and the surrounding conditions; A program that causes a computer to execute a process of displaying information about a lane change, including the planned driving route, in a display area around a driver's seat when a lane change is necessary, changing a display mode of the planned driving route displayed in the display area according to the purpose of the lane change; A program that causes a computer to perform a process.

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