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

Abstract

To obtain a vehicle display control device, a vehicle display system, a vehicle display control method, and a vehicle display control program capable of making a guide image conspicuous in a scene where a request for hands-on operation is highly necessary, and capable of reducing annoyance with the guide image in a scene where the request for the hands-on operation is low.SOLUTION: A vehicle display control device allows a MET 24 and a HUD 26 to display, in an emphasized manner, icons D3 and D4 in the case of requesting an occupant to perform hands-on operation before a vehicle 12 is switched from automated driving to manual driving, as compared to an icon in the case of requesting the occupant to continue the hands-on operation while the automated driving is continued. Thus, the icons D3 and D4 are made more conspicuous than the icon. In other words, the icon is more inconspicuous than the icons D3 and D4, so that annoyance is reduced in the case of requesting the occupant to continue the hands-on operation while the automated driving is continued.SELECTED DRAWING: Figure 6

Claims

1. The system includes a display control unit that displays a guidance image on a display unit located inside the vehicle cabin, prompting the occupant to grasp the steering wheel when it is necessary for the occupant to grasp the steering wheel. The display control unit, while the vehicle is in continuous automatic driving mode, if the automatic driving control unit requests the occupant to hold the steering wheel before switching from automatic driving to manual driving, it displays the guidance image on the display unit with emphasis, including a textual request; and if the occupant is requested to continue holding the steering wheel, it displays the guidance image on the display unit without a textual request.

2. The system includes a display control unit that displays a guidance image on a display unit located inside the vehicle cabin, prompting the occupant to grasp the steering wheel when it is necessary for the occupant to grasp the steering wheel. The display control unit, while the vehicle is in continuous autonomous driving, displays the guidance image on the display unit with emphasis, including a textual request, when it requests the occupant to hold the steering wheel before an event occurs in the vehicle, and displays the guidance image on the display unit without a textual request when it requests the occupant to continue holding the steering wheel.

3. The system includes a display control unit that displays a guidance image on a display unit located inside the vehicle cabin, prompting the occupant to grasp the steering wheel when it is necessary for the occupant to grasp the steering wheel. The display control unit, while the vehicle is in continuous automatic driving mode, when requesting the occupant to hold the steering wheel before an event occurs in the vehicle (excluding cases where the vehicle switches from automatic driving to manual driving), displays the guidance image on the display unit with emphasis, including a textual request, compared to when requesting the occupant to continue holding the steering wheel.

4. The system includes a display control unit that displays a guidance image on a display unit located inside the vehicle cabin, prompting the occupant to grasp the steering wheel when it is necessary for the occupant to grasp the steering wheel. The display control unit, while the vehicle is in continuous automatic driving mode, displays the guidance image on the display unit with greater emphasis compared to when the automatic driving control unit requests the occupant to hold the steering wheel before switching from automatic driving to manual driving, and also displays the guidance image on the display unit with greater emphasis compared to when the occupant is requested to continue holding the steering wheel before an event occurs in the vehicle. Furthermore, a vehicle display control device that, while the vehicle is in continuous autonomous driving, displays the guidance image on the display unit with greater emphasis compared to when the occupant is asked to continue holding the steering wheel before a vehicle event occurs.

5. The display control unit calculates at least one of the distance and time from automatic driving to manual driving, and when at least one of the distance and time becomes shorter than a preset threshold, it displays the guidance image on the display unit with greater emphasis than when at least one of the distance and time is longer than the threshold, as described in claim 1 or claim 4.

6. The display control unit calculates at least one of the distance and time until an event occurs in the vehicle, and when at least one of the distance and time becomes shorter than a preset threshold, it displays the guidance image on the display unit with greater emphasis than when at least one of the distance and time is longer than the threshold, according to any one of claims 2, 3, and 5.

7. A vehicle display control device according to any one of claims 1 to 6, wherein when the occupant is required to grip the steering wheel, the size of the guidance image is increased, the brightness of the guidance image is increased, or the guidance image is displayed in a more prominent position to emphasize the guidance image, compared to when the occupant is required to continue gripping the steering wheel.

8. A vehicle display control device according to claim 1 or claim 4, A display unit is provided inside the vehicle cabin and displays guidance images that prompt the occupant to grip the steering wheel, A vehicle display system having the following features.

9. A vehicle display control device according to claim 2 or claim 3, A display unit is provided inside the vehicle cabin and displays guidance images that prompt the occupant to grip the steering wheel, A vehicle display system having the following features.

10. A vehicle display control method that causes a computer to execute a process including displaying an enhanced guidance image, including a textual request, on a display unit installed in the vehicle cabin when the automatic driving control unit requests the occupant to hold the steering wheel before switching from automatic driving to manual driving while the vehicle is in continuous automatic driving mode, and when the occupant is requested to continue holding the steering wheel, the guidance image without a textual request is displayed on the display unit.

11. A vehicle display control method that causes a computer to execute a process including displaying a guidance image on a display unit installed in the vehicle cabin, with an emphasis on the guidance image including a textual request, when the vehicle is in continuous autonomous driving and requests the occupant to hold the steering wheel before an event occurs in the vehicle, and when the vehicle requests the occupant to continue holding the steering wheel, the guidance image without a textual request is displayed on the display unit.

12. On the computer, A vehicle display control program for executing a process that includes, while the vehicle is in autonomous driving mode, displaying a guidance image on a display unit installed in the vehicle cabin, with an emphasis on the guidance image including a textual request, when the autonomous driving control unit requests the occupant to hold the steering wheel before switching from autonomous driving to manual driving, and when the occupant is requested to continue holding the steering wheel, displaying the guidance image without a textual request on the display unit.

13. On the computer, A vehicle display control program for executing a process that includes, while the vehicle is in autonomous driving mode, displaying a guidance image on a display unit installed in the vehicle cabin, emphasizing the image and including a textual request, when the vehicle is requesting the occupant to hold the steering wheel before an event occurs, and displaying the guidance image without a textual request on the display unit when the vehicle is requesting the occupant to continue holding the steering wheel.

Images