Autonomy-Switching Directions for Safer AV Mode Transitions
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Solution Overview
Problem
Autonomous vehicles face challenges in smoothly transitioning between autonomous and manual operation modes due to insufficient warning times when entering or exiting self-driving modes, especially in areas not mapped or legally restricted for autonomous operations, leading to potential safety issues.
Innovation Solution
An on-board computing system that generates and presents autonomy-switching directions within a navigation user interface, using visual and audio alerts to inform the operator of impending mode changes, based on autonomy-operation permissions and geographical locations, ensuring timely and safe transitions between autonomous and manual operation modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the AV operates in fully autonomous mode on public roads, then productivity and automation level are improved, but safety and reliability deteriorate when transitioning through unmapped or legally restricted areas
Solution Approach 1:
The system performs preliminary actions by providing advance notice to the operator about upcoming mode transitions before they occur. The notification system alerts the operator in advance that the AV will transition from autonomous to manual mode, allowing the operator to prepare mentally and physically for the transition, thereby ensuring safer and more reliable mode switching.
2Adaptability or versatility
If the AV transitions between autonomous and manual modes frequently to navigate restricted areas, then adaptability is improved, but operational smoothness and safety deteriorate due to insufficient warning time
Solution Approach 1:
The notification system performs preliminary action by alerting the operator in advance of upcoming mode transitions. This advance notice allows the operator to prepare for the transition, making frequent mode switches between autonomous and manual operations smoother and safer, thereby improving ease of operation during adaptability-intensive scenarios.
3Loss of information
If the AV provides extensive navigation directions and autonomy-switching directions, then information completeness is improved, but operator cognitive load and system complexity increase
Solution Approach 1:
The notification system applies local quality by providing information in a targeted and context-specific manner. Rather than overwhelming the operator with all possible information simultaneously, the system delivers autonomy-switching directions and mode transition notifications at appropriate moments and in appropriate formats, reducing cognitive load while maintaining information completeness.
Data Source
AI summary
An on-board computing system for a vehicle is configured to generate and selectively present a set of autonomous-switching directions within a navigation user interface for the operator of the vehicle. The autonomous-switching directions can inform the operator regarding changes to the vehicle's mode of autonomous operation. The on-board computing system can generate the set of autonomy-switching directions based on the vehicle's route and other information associated with the route, such as autonomous operation permissions (AOPs) for route segments that comprise the route. The on-board computing device can selectively present the autonomy-switching directions based on locations associated with anticipated changes in autonomous operations determined for the route of the vehicle, the vehicle's location, and the vehicle's speed. In addition, the on-board computing device is further configured to present audio alerts associated with the autonomy-switching directions to the operator of the vehicle.