Vehicle Status Display Modes for Map Availability Recognition
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Solution Overview
Problem
In vehicles configured for autonomous driving, there is a discrepancy between the actual assist level of autonomous driving control and the predetermined assist level due to varying map information availability, making it difficult for drivers to recognize the actual assist level accurately.
Innovation Solution
A display device that adjusts the display mode of status images based on the acquisition status of map information, distinguishing between cases where autonomous driving control is executable, not executable, and temporarily unavailable, using different visual cues such as lane line representation and viewing angles to indicate the actual assist level.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the same display mode is used for different assist levels, then the display unit can maintain consistent visual presentation, but the driver cannot recognize the actual assist level accurately
Solution Approach 1:
The patent applies color changes to indicate different assist levels. Specifically, the border color of the status image changes based on the assist level: green for high assist level, yellow for medium assist level, and red for low assist level. This allows the driver to quickly recognize the current assist level through color cues without increasing system complexity
Solution Approach 2:
The patent implements periodic updates of the display mode based on changes in assist level. When the assist level changes, the display mode is updated periodically to reflect the new level, ensuring the driver receives timely information while maintaining stable display during constant conditions
2Loss of information
If the display mode changes frequently to reflect map information status, then the driver can recognize the current status accurately, but the driver may become confused by too many visual changes
Solution Approach 1:
The patent segments the status information into distinct visual elements: the status image itself, the border surrounding the image, and the assist level indicator. Each element serves a specific function and can be independently controlled, allowing clear communication of map information status without overwhelming the driver with undifferentiated changes
Solution Approach 2:
The patent applies different visual qualities to different parts of the display based on the map information status. When map information is unavailable, the border color changes to alert the driver, while the status image content remains consistent. This localized visual adjustment provides necessary information without causing overall display confusion
Data Source
AI summary
A display device includes an image generation unit configured to generate a status image presented to a driver of the vehicle, the status image representing to a current status of the vehicle and surroundings of the vehicle; a map information acquisition unit configured to acquire the map information and recognize an acquisition status of the map information; a display mode setting unit configured to set a display mode; and a display control unit configured to display the status image on a display unit in the display mode. The acquisition status includes a first case, a second case, and a third case in which the map information is temporarily unavailable. The display mode setting unit sets the display mode so that the display mode of the first case, the second case and the third case are different from each other.