Vehicle Display Refresh Control During Reduced Driving Autonomy
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The increase in displayed information frequency and duration in vehicle display systems during mode changes can distract drivers, reducing their attention to the surrounding environment, particularly when autonomy decreases.
Innovation Solution
A display system that adjusts the refresh interval and visibility of information based on changes in driving mode autonomy, using a control unit to extend refresh intervals and reduce visibility through methods like blurring or reducing brightness when autonomy decreases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display unit displays more information to support driving functions, then the driving support function is improved, but the driver's attention to the surrounding environment is reduced
Solution Approach 1:
The display system dynamically adjusts the display range and information presentation based on the current driving mode. In autonomous driving modes, the display shows more comprehensive information including wide-angle camera feeds and detailed vehicle status. In manual driving modes, the display automatically reduces information density and prioritizes critical alerts only, thereby maintaining driving support functionality while minimizing driver distraction.
Solution Approach 2:
The system changes display parameters such as brightness, contrast, and information density according to the detected driving mode. When autonomous driving is active, the display enhances visibility and presents detailed information. When manual driving is detected, the system reduces brightness levels, simplifies information presentation, and extends refresh intervals to prevent excessive driver attention to the display.
2Loss of information
If the display range is widened to show more surrounding information, then the information completeness is improved, but the driver's viewing frequency increases
Solution Approach 1:
The display system implements dynamic control of information presentation based on driving mode detection. In autonomous driving modes, the display continuously shows comprehensive surrounding information including 360-degree camera feeds and sensor data. In manual driving modes, the system transitions to a minimal display approach showing only critical alerts and essential information, thereby reducing driver viewing frequency while maintaining information completeness when needed.
Solution Approach 2:
The system employs periodic refresh intervals adapted to the driving mode. During autonomous driving, the display refreshes information at high frequency to maintain situational awareness. During manual driving, the refresh interval is extended and information is updated only when significant changes occur or critical conditions are detected, reducing the driver's need to frequently check the display while preserving essential information.
3Loss of information
If the refresh interval is shortened to update information more frequently, then the information freshness is improved, but the driver's attention to the display increases
Solution Approach 1:
The refresh interval is dynamically adjusted based on the detected driving mode. In autonomous driving modes, the system maintains short refresh intervals to ensure information freshness and support continuous monitoring requirements. In manual driving modes, the refresh interval is automatically extended, and the system only updates critical information when significant changes occur in the driving environment or vehicle status, thereby maintaining information freshness where needed while reducing overall driver distraction.
Data Source
AI summary
A display system mounted on a vehicle that travels in a driving mode selected from among a plurality of driving modes having different degrees of autonomy of driving tasks, the display system includes: a display unit configured to display information to a driver; and a control unit configured to execute at least one of setting a refresh interval of predetermined information displayed on the display unit to be longer than that before a driving mode change and setting visibility of the predetermined information to be lower than that before the driving mode change, when a degree of autonomy decreases due to the driving mode change.