HUD Schedule Display for Manual Driving Takeover Visibility
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Solution Overview
Problem
In vehicles capable of switching between autonomous and manual driving, occupants are not reliably informed of the timing when their operation is required, as existing technologies prioritize autonomous driving segment displays over manual driving segments.
Innovation Solution
A vehicle display control system that emphasizes manual driving action schedule items over autonomous driving items by using distinct color inversion and background settings on display screens, such as HUD and meter displays, to clearly indicate when occupant operation is necessary, even in low contrast conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If autonomous driving segments are emphasized in display, then autonomous driving information is clearly presented, but manual driving segments become less noticeable and occupants may not be reliably informed when operation is required
Solution Approach 1:
The display control section applies different visual properties (color, background, font size) to different segments of the display based on their meaning. Manual driving segments are given distinct visual characteristics compared to autonomous driving segments, allowing each segment type to have optimized visibility appropriate to its function.
Solution Approach 2:
Instead of emphasizing autonomous driving segments through standard display methods, the system inverts the approach by making manual driving segments stand out through color inversion and distinctive background settings. This reverses the conventional emphasis pattern to prioritize safety-critical information.
2Loss of information
If color inversion is used to emphasize manual driving segments, then visibility is improved, but color palette complexity increases
Solution Approach 1:
The system changes visual parameters (color, background, font size) dynamically based on the segment type. By adjusting these parameters rather than introducing entirely new display elements, the system achieves improved visibility while controlling complexity through parameter manipulation rather than structural complexity.
Data Source
AI summary
The action schedule item creation ECU creates action schedule items demanded of an ego vehicle capable of switching between autonomous driving and manual driving. The HUD and the meter display are provided inside a cabin of the ego vehicle. The display control ECU displays the action schedule items created by the action schedule item creation ECU on the HUD and the meter display, and emphasizes display of action schedule items to be performed by manual driving compared to display of action schedule items to be performed by autonomous driving.