In-Vehicle Path Display for Driver Intervention During Autonomous Driving
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Solution Overview
Problem
Existing display devices fail to effectively convey the difference between a vehicle's path due to driver intervention and autonomous driving control during autonomous driving, hindering the driver's understanding of the vehicle's trajectory.
Innovation Solution
A display device that includes a traveling state recognition unit, intervening driving manipulation recognition unit, trajectory acquisition unit, first and second calculation units, and a display control unit to display first and second pointers on an in-vehicle display, highlighting the difference between the driver's intended path and the autonomous driving path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If only the autonomous driving path (second path) is displayed on the in-vehicle display, then the display information is simple and easy to process, but the driver cannot easily comprehend the difference between the driver-intervened path and the autonomous driving path
Solution Approach 1:
The display information is segmented into two distinct path representations: the first path (driver-intervened) and the second path (autonomous driving). By dividing the path information into separate visual elements, the system preserves complete path difference information while maintaining clear distinction between the two paths, preventing information overload.
Solution Approach 2:
Different visual characteristics are applied to different path segments. The first path and second path are displayed with distinct visual properties (such as different colors, line styles, or transparency levels), allowing the driver to easily distinguish between driver-intervened and autonomous driving paths while comprehending their differences.
2Ease of operation
If both the first path (driver-intervened) and second path (autonomous driving) are displayed simultaneously, then the driver can easily comprehend the path difference, but the display information becomes more complex
Solution Approach 1:
The simultaneous display of both paths is achieved through segmentation into distinct visual elements. Each path is represented separately with clear visual differentiation, enabling the driver to comprehend path differences easily while the segmented structure prevents the display from becoming overwhelming or complex.
Solution Approach 2:
The two paths are displayed using different visual dimensions or layers. By employing dimensional differentiation (such as overlaying paths at different transparency levels, using different colors, or displaying them in a hierarchical manner), the system enables easy driver comprehension while managing display complexity through effective use of visual space.
3Reliability
If detailed path information is displayed during autonomous driving control, then the driver's situational awareness is enhanced, but the display may distract the driver from the road
Solution Approach 1:
The path information is displayed with selective visual emphasis on critical segments. By applying different visual qualities to different portions of the paths (such as highlighting divergent segments or using varying intensity levels), the system enhances situational awareness for important path differences while minimizing distraction through controlled visual prominence.
Solution Approach 2:
The system displays path information selectively rather than continuously at full detail. By showing partial path information (such as displaying only the divergent portions or using simplified representations), the system provides sufficient situational awareness while reducing the potential for driver distraction through controlled information presentation.
Data Source
AI summary
A display device includes a traveling state recognition unit configured to recognize a traveling state of a vehicle, an intervening driving manipulation recognition unit configured to recognize intervention in a driving manipulation by a driver of the vehicle during autonomous driving control, a trajectory acquisition unit configured to acquire a trajectory of the autonomous driving control, a first calculation unit configured to calculate a first path of the vehicle if an amount of intervention in the driving manipulation is maintained, a second calculation unit configured to calculate a second path of the vehicle due to the autonomous driving control based on the trajectory; and a display control unit configured to cause a first pointer showing the first path and a second pointer showing the second path to be displayed on an in-vehicle display when the intervention in the driving manipulation during the autonomous driving control is recognized.