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DE-102025145886-A1 - VEHICLE DISPLAY DEVICE

DE102025145886A1DE 102025145886 A1DE102025145886 A1DE 102025145886A1DE-102025145886-A1

Abstract

Problem: To provide a vehicle display device that can give a vehicle occupant a strong impression of a change in driving mode. Solution: A vehicle display device 1 comprises display units 12b and 12a, which transmit light emitted by light sources 11b and 11a and display a virtual image VI or a real image RI; a reflector unit 13, which reflects a first display light L22 or a second display light L11, each representing the virtual image VI or the real image RI, respectively; and a control unit 15. The control unit 15 performs a display switching process to toggle a display so that the virtual image VI is visible in a manual driving mode and the real image RI is visible in an autonomous driving mode; a seat detection process to detect that a change in the position or orientation of a seat 50 has occurred in connection with switching between the manual driving mode and the autonomous driving mode; and a switching instruction process to perform switching instructions by dynamically displaying a first image or a second image, each corresponding to the virtual image VI, during the switching between the virtual image VI and the real image RI. or corresponds to the real image RI.

Inventors

  • Yuji Inosaka
  • Yuri Sato

Assignees

  • NIPPON SEIKI CO. LTD.

Dates

Publication Date
20260513
Application Date
20251107
Priority Date
20241108

Claims (10)

  1. A vehicle display device provided in a vehicle having a seat on which a vehicle occupant sits and a translucent element, and emitting display light from a radiating aperture towards the translucent element, thereby switching between a first display image and a second display image of a display image represented by the display light in order to visually convey the display image to the vehicle occupant, the vehicle display device comprising: a display unit having a display element, transmitting light emitted from a light source and displaying the first display image or the second display image; a reflector unit reflecting the first display light or the second display light, respectively representing the first display image or the second display image shown in the display unit, towards the translucent element; and a control unit, characterized in that the control unit performs a display switching process for switching a display such that the first display image is visible in a manual driving mode of the vehicle and the second display image is visible in an autonomous driving mode of the vehicle, a seat detection process for detecting that a change in the position or orientation of the seat has been made in connection with a switch between the manual driving mode and the autonomous driving mode in the vehicle, and a switching instruction process for carrying out a switching instruction by dynamically displaying a first image or a second image, corresponding to the first display image or the second display image respectively, during the switch between the first display image and the second display image by the display switching process.
  2. Vehicle display device according to Claim 1 , characterized in that the control unit aligns a time at which the dynamic display in the switching instruction process is completed with a time at which the switching of the position or orientation of the seat detected in the seat recognition process is completed.
  3. Vehicle display device according to Claim 2 , characterized in that the control unit further coincides a time at which the dynamic display in the switching instruction process begins with a time at which the switching of the position or orientation of the seat detected in the seat recognition process begins.
  4. Vehicle display device according to one of the Claims 1 until 3 characterized in that the first display image is a virtual image and the second display image is a real image.
  5. Vehicle display device according to Claim 4 , characterized in that the seat has a seat section and a backrest section, and the control unit, in the seat recognition process, recognizes whether at least one process has been carried out in the vehicle under an angle change process to change an inclination angle of the backrest section, a forward-backward change process to change a position of the seat section in a forward-backward direction, and a height change process to change the position of the seat section in an up-down direction, and in the switching instruction process, performs the dynamic display of at least one of sliding in or out of the first image or the second image, showing in or hiding the first image or the second image, and zooming in or out of the first image or the second image.
  6. Vehicle display device according to Claim 5 , characterized in that the control unit recognizes in the seat recognition process that the angle change process has been carried out in the vehicle, and performs the pushing in or pushing out as the dynamic display in the switching instruction process.
  7. Vehicle display device according to Claim 6 , characterized in that , when the control unit detects an increase in the tilt angle during the seat detection process, when switching the display from the virtual image to the real image during the display switching process, in the switching instruction process, pushes the first image out of a field of view upwards and pushes the second image into the field of view from below, and when the control unit detects a decrease in the tilt angle during the seat detection process, when switching the display from the real image to the virtual image during the display switching process, in the switching instruction process, pushes the second image out of a field of view downwards and pushes the first image into the field of view from above.
  8. Vehicle display device according to Claim 5 , characterized by the fact that the control input The system recognizes in the seat recognition process that the forward-backward change process has been carried out in the vehicle, and performs the display showing or hiding in the switching instruction process as the dynamic display.
  9. Vehicle display device according to Claim 8 , characterized in that , when the control unit detects a backward movement of the seat section in the seat recognition process, when switching the display from the virtual image to the real image in the display switching process, in the switching instruction process, it hides the first image and displays the second image, and when the control unit detects a forward movement of the seat section in the seat recognition process, when switching the display from the real image to the virtual image in the display switching process, in the switching instruction process, it hides the second image and displays the first image.
  10. Vehicle display device according to Claim 6 , characterized in that the reflector unit has a concave mirror which reflects the incident first indicator light or the second indicator light in the direction of the light-transmitting element, and the control unit further performs a concave mirror switching process to switch a position of the concave mirror such that the dynamic display is in a position in the top-bottom direction which corresponds to a change in the field of vision of the vehicle occupant due to the angle change process in the vehicle.

Description

Technical field The present invention relates to a vehicle display device for displaying a desired message to an occupant of a vehicle. Technical background A conventional example is a vehicle-mounted display system according to Japanese Unexamined Patent Publication No. 2019-18804 (hereinafter referred to as Patent Document 1). In the vehicle-mounted display system, when the vehicle switches from a manual driving mode to an autonomous driving mode, various pieces of information for a vehicle occupant (driver) are switched from a virtual image display to a real image display, and when the vehicle switches from autonomous driving mode to manual driving mode, various pieces of information for the vehicle occupant (driver) are switched from the real image display to the virtual image display. Furthermore, a field-of-view control device is described in the Japanese Unexamined Patent Publication No. 2019-48519 (hereinafter referred to as patent document 2). The said field-of-view control device controls an upward movement or a forward tilt of a seat when a vehicle switches to an autonomous driving mode. State of the art document Patent document Patent Document 1: Japanese Unexamined Patent Disclosure No. 2019-18804Patent Document 2: Japanese Unexamined Patent Disclosure No. 2019-48519 Summary of the invention Problem to be solved by the invention In order to further improve driver assistance functions for a vehicle occupant, methods have been considered in recent years that combine a display switching process between a real image and a virtual image, as described in the above-mentioned patent document 1, with a seat switching process of a position or a position of a seat, as described in patent document 2. However, if, during the driving mode change, the point at which the seat position or orientation change is completed and the point at which the display change described above is completed do not coincide, the display change may be completed some time after the seat change, or the seat change may be completed some time after the display change. In such a case, a vehicle occupant may perceive a driving mode change at two separate points in time, resulting in the problem that the vehicle occupant does not receive a strong impression of the driving mode change. The present invention was designed in view of the above-mentioned problems and has the objective of providing a vehicle display device that can give a vehicle occupant a strong impression of switching a driving mode. Means of solving the task The present invention relates to a vehicle display device 1, which is provided in a vehicle C having a seat 50 on which a vehicle occupant DR sits and a translucent element WS, and which emits display lights L11 and L12 from a radiating aperture 17 towards the translucent element WS, thereby switching between a first display image VI and a second display image RI of a display image represented by the display lights L11 and L12 in order to visually convey the display image to the vehicle occupant DR, wherein the vehicle display device 1 has display units 12b and 12a, each having a display element, which transmit light emitted from light sources 11b and 11a and display the first display image VI or the second display image RI, and a reflector unit 13 which reflects the first display light L22 or the second display light L11, respectively, which displays the first display image VI shown in the display units 12b and 12a. or the second display image RI is reflected in the direction of the translucent element WS, and includes a control unit 15, and the control unit 15 includes a display switching process for switching a display such that the first display image VI is visible in a manual driving mode of the vehicle C and the second display image RI is visible in an autonomous driving mode of the vehicle C, a seat detection process for detecting that a change in the position or orientation of a seat 50 has been made in connection with switching between the manual driving mode and the autonomous driving mode in the vehicle C, and performs a switching instruction process to carry out a switching instruction by dynamically displaying a first image or a second image corresponding to the first display image VI or the second display image RI, respectively, during the switching between the first display image VI and the second display image RI by the display switching process. Advantages of the invention According to the present invention, a strong impression of a change in driving mode can be conveyed to a vehicle occupant. Brief description of the drawings 1 Figure 1 shows a view of the construction of a head-up display device according to an embodiment of the present invention.2 is a functional block diagram that shows a functional structure of a control unit in the head-up display device.3 is an explanatory diagram that shows the behavior of a dynamic display when switching from a manual driving mode to an autonomous driving mode