Vehicle Display Handover Control for Takeover Request Transitions
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Solution Overview
Problem
When switching from automatic driving to manual driving, the abrupt change in display can cause discomfort and distress for the occupant, as they may be watching a map or entertainment video, and the display switch disrupts their expectations.
Innovation Solution
A display control device that manages multiple display units in a vehicle, initially displaying driving switching notification information on a secondary display unit without overlapping with the primary image, and then transitioning it to the primary display unit, allowing the occupant to recognize the state change without discomfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the display for automatic driving is abruptly switched to the display for takeover request, then the takeover request information is clearly conveyed to the occupant, but the occupant feels distressed and uncomfortable
Solution Approach 1:
The patent applies preliminary action by first displaying the takeover request notification on a second display unit (such as a dashboard display) before switching it to the first display unit (windshield display). This preliminary notification allows the occupant to be aware of the upcoming takeover request in a non-intrusive manner, reducing sudden distress while ensuring the information is effectively communicated before the display switch occurs.
2Loss of information
If both the display for automatic driving and the display for takeover request are displayed simultaneously, then the occupant can recognize the takeover request, but the occupant's feeling of discomfort increases due to multiple images
Solution Approach 1:
The patent applies segmentation by dividing the notification process into two stages and two display units. The takeover request information is first segmented and displayed on the second display unit, allowing recognition without overlapping with the primary driving display. Then it is transferred to the first display unit, ensuring the occupant can process the information separately rather than dealing with overlapping images simultaneously.
Solution Approach 2:
The second display unit acts as an intermediary device that temporarily holds and displays the takeover request notification. This intermediary approach allows the information to be conveyed to the occupant through a separate channel that does not conflict with the primary driving display, reducing visual clutter and discomfort while ensuring effective communication of the takeover request.
3Loss of information
If the display for automatic driving is forcibly ended and switched to the display for takeover request, then the takeover request is clearly notified, but the occupant's expectations are violated and distress increases
Solution Approach 1:
The patent applies preliminary action by notifying the occupant of the takeover request on the second display unit before switching the primary display. This preliminary notification respects the occupant's expectations by providing advance warning in a non-intrusive manner, allowing them to mentally prepare for the transition without feeling that their current viewing experience is being forcibly interrupted.
Data Source
AI summary
A display control device has a control unit that controls image display on multiple display units. The multiple display units comprise a first display unit for displaying a first image and a second display unit for displaying a second image. In the case of displaying driving-change notification information to notify an occupant of a vehicle that the vehicle is to change from a first driving condition to a second driving condition, while the occupant is viewing the first image in the first display unit, the control unit executes a first display control process of causing to display driving-change notification information as a second image in the second display unit so as not to overlap the first image, and then executes a second display control process of causing to display said driving-change notification information in place of the first image in the first display unit.