CN-122009230-A - Vehicle display device, control method for vehicle display device, and computer program product

Abstract

A vehicle display apparatus, a control method of the vehicle display apparatus, and a computer program product are provided. The possibility that the risk index (2) is grasped by the driver of the vehicle (1) can be improved while suppressing the annoyance to the display of the image on the front windshield (20). A vehicle display device (23) is provided with a detection unit (101) that detects a risk indicator (2) that is present in front of a vehicle (1) and that is likely to come into contact with the vehicle (1), and a display control unit (108) that displays an image on a front windshield (20) of the vehicle (1), wherein the display control unit (108) temporarily displays a visibility-reduced image (VG) that reduces the visibility of a driver (P) of the vehicle (1) in a range other than a risk indicator range (R1) that corresponds to the risk indicator (2) detected by the detection unit (101) on the front windshield (20).

Inventors

• Nojiri Hajime
• Iwasa Yasunari
• Tonoto Toshihiro
• OKUYAMA HARUKO
• SHIMURA HIROYICHIRO

Assignees

• 本田技研工业株式会社

Dates

Publication Date

20260512

Application Date

20251105

Priority Date

20241111

Claims (12)

1. 1. A vehicle display device, comprising: A detection unit for detecting a risk indicator existing in front of a vehicle and likely to contact the vehicle, and A display control unit that displays an image on a front windshield of the vehicle, The display control unit temporarily displays a visibility reduction image that reduces the visibility of the driver of the vehicle in a range other than the risk index range corresponding to the risk index detected by the detection unit on the front windshield.
2. 2. The vehicle display apparatus according to claim 1, wherein, The vehicle display device includes a determination unit that determines whether or not the reduced visibility image can be displayed, The determination unit determines whether or not to display the visibility-reduced image based on at least one of information on a road on which the vehicle is traveling, a time until the vehicle is in contact with the risk indicator, a distance from a viewpoint of the driver to the risk indicator on the front windshield, a state of the driver, and presence or absence of a driving assistance function of the vehicle.
3. 3. The vehicle display apparatus according to claim 2, wherein, When the determination unit determines that the reduced visibility image can be displayed, the display control unit displays the reduced visibility image for a first period of time, The display control unit displays the visibility-reduced image for a period of a second time longer than the first time when the driver's line of sight is not directed to the risk index after the visibility-reduced image is displayed for the first time.
4. 4. The vehicle display apparatus according to claim 3, wherein, The reduced visibility image displayed at the second time is an image that reduces the visibility of the driver compared to the reduced visibility image displayed at the first time.
5. 5. The vehicle display apparatus according to claim 2, wherein, When the determination unit determines that the reduced visibility image is not displayable, The display control portion sets the autopilot function to be active when the vehicle has the autopilot function, and then displays the reduced visibility image.
6. 6. The vehicle display apparatus according to claim 2, wherein, The vehicle display device is connected to a stimulus output device that outputs a stimulus other than a display to the driver, The vehicle display device has a stimulus control section that controls the stimulus output device, When the determination unit determines that the reduced visibility image is not displayable, The display control unit does not display the visibility-reduced image when the vehicle does not have an autopilot function, and the stimulus output device is caused to output the stimulus by the stimulus control unit.
7. 7. The vehicle display apparatus according to any one of claims 1 to 6, wherein, The risk index range is a range based on the position and size of the risk index, and the position of the driver's eyes in the vehicle.
8. 8. The vehicle display apparatus according to claim 7, wherein, The risk index range is a range based on information of a road on which the vehicle is traveling.
9. 9. The vehicle display apparatus according to claim 8, wherein, The display control unit displays the visibility-reduced image so that the person or the object is included in the risk index range based on information of a road on which the vehicle travels when the risk index includes the person and an object other than the person.
10. 10. The vehicle display apparatus according to any one of claims 1 to 6, wherein, The display control unit highlights the risk indicator range when a time period from when the vehicle comes into contact with the risk indicator is equal to or less than a predetermined value.
11. 11. A control method of a vehicle display device, comprising: A detection step of detecting a risk index existing in front of the vehicle and likely to come into contact with the vehicle, and A display step of displaying an image on a front windshield of the vehicle, In the step of displaying the image on the display screen, A visibility reduction image that reduces the visibility of a driver of the vehicle is temporarily displayed on the front windshield in a range other than the risk index range corresponding to the risk index detected by the detecting step.
12. 12. A computer program product comprising a program that causes a processor to function as: A detection unit for detecting a risk indicator existing in front of a vehicle and likely to contact the vehicle, and A display control unit that displays an image on a front windshield of the vehicle, The display control unit temporarily displays a visibility reduction image that reduces the visibility of the driver of the vehicle in a range other than the risk index range corresponding to the risk index detected by the detection unit on the front windshield.

Description

Vehicle display device, control method for vehicle display device, and computer program product Technical Field The invention relates to a vehicle display device, a control method of the vehicle display device, and a computer program product. Background Conventionally, there is known a technique for enabling a driver of a vehicle to grasp a risk indicator, which is an indicator that may come into contact with the vehicle. For example, patent document 1 discloses a technique of suppressing unnecessary line-of-sight guidance for objects other than a visual confirmation object to be focused on by displaying an image on a front windshield and restricting a visual field of a portion having significance that does not need visual confirmation by a driver. Further, for example, patent document 2 discloses a technique of displaying an image on a windshield. In the technique disclosed in patent document 2, when division line information displayed on a windshield is displayed in a superimposed manner on an obstacle, the visibility of the obstacle is improved by restricting the display of the division line information. Prior art literature Patent literature Patent document 1 Japanese patent application laid-open No. 2018-016117 Patent document 2 Japanese patent application laid-open No. 2020-128172 Disclosure of Invention Problems to be solved by the invention Patent documents 1 to 2 are technologies for improving the possibility of enabling the driver of the vehicle to grasp the risk index. However, in patent document 1, while a significant portion that does not need to be visually confirmed by the driver is extracted from the captured image of the camera, an image that is subject to the field of view limitation is displayed on the front windshield, and thus the driver may feel boring with the display of the image. Further, in patent document 2, the division line information is displayed on the windshield during a period in which the information of the division line of the road ahead of the vehicle is acquired, and thus the driver may feel tired of displaying the image. Accordingly, an object of the present invention is to improve the possibility that a driver of a vehicle can grasp a risk index while suppressing annoyance to a front windshield display image. Furthermore, further improvements in traffic safety are facilitated and the development of sustainable conveying systems is facilitated. Means for solving the problems A vehicle display device includes a detection unit that detects a risk indicator that is present in front of a vehicle and that may come into contact with the vehicle, and a display control unit that displays an image on a front windshield of the vehicle, wherein the display control unit temporarily displays a visibility-reduced image that reduces visibility of a driver of the vehicle in a range other than a risk indicator range corresponding to the risk indicator detected by the detection unit on the front windshield. Effects of the invention According to one aspect of the present invention, it is possible to improve the possibility that the driver of the vehicle grasps the risk index while suppressing the annoyance to the front windshield display image. Drawings Fig. 1 is a diagram showing a structure of a vehicle. Fig. 2 is a diagram showing a structure in a vehicle cabin of a vehicle. Fig. 3 is a diagram showing a structure of the vehicle display device. Fig. 4 is a diagram for explaining calculation of the distance between viewpoint indexes. Fig. 5 is a diagram for explaining the processing of the display control section. Fig. 6 is a diagram showing an example of a visibility-reduced image. Fig. 7 is a flowchart showing the operation of the vehicle display device. Description of the reference numerals Vehicle, 2..risk index, 2 j..upper end position, 2 k..lower end position, 2 s..left end position, 2 u..right end position, 10 a..driver 'S seat, 10 b..co-driver' S seat, 10 c..right rear seat, 10 d..left rear seat, 12..touch panel, 13, 14, 15, 16, 17..speaker (stimulus output device), 18..front camera, and the like. HUD, 20, front windshield, 21, instrument panel, 22, driver monitor camera, 23, vehicle display device, 24, position detection device, 25, vehicle speed sensor, 26, driving assistance device, 27, autopilot device, 100, processor, 101, risk index detection unit (detection unit), 102, vision detection unit. The present invention relates to a vehicle control system including an eye detection unit, a driver state detection unit, a 105 determination unit, a 106 TTC calculation unit, a 107 speaker control unit (stimulus control unit), a 110 memory, a 111 control program, HD., a head unit, a HJ., a correction rear upper end position, a HK., a correction rear lower end position, a HS., a correction rear left end position, a HU., a correction rear right end position, a KJ., a conversion rear upper end position, a KK., a conversion rear lower end position, a KS., a conversion rear left end posi