Autonomous Vehicle Stopping Place Selection
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Solution Overview
Problem
Autonomous vehicles face challenges in identifying and selecting suitable stopping places near a goal position, as existing technologies may not account for real-time conditions, legal restrictions, and feasibility, leading to potential safety and efficiency issues.
Innovation Solution
An autonomous vehicle system that continuously analyzes static and dynamic information using sensors and map data to select a feasible and desirable stopping place, applying strategies such as prioritizing the first available spot or adjusting thresholds for acceptability and feasibility, and involving passenger input to redefine the goal position or vicinity if necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the autonomous vehicle system continuously analyzes current information about potential stopping places to make an informed choice, then the reliability of stopping place selection is improved, but the time required to select a stopping place increases
Solution Approach 1:
The system pre-identifies and stores potential stopping places in the vicinity of the goal position before the vehicle arrives. This preliminary action allows the vehicle to quickly select from pre-vetted options rather than analyzing all possible locations in real-time, thus improving reliability while reducing selection time.
Solution Approach 2:
The system dynamically adjusts the selection process by continuously analyzing current information about potential stopping places and updating the choice of currently selected stopping place based on real-time conditions. This dynamic approach ensures reliability by adapting to changing circumstances while maintaining efficient decision-making through structured analysis.
2Productivity
If the autonomous vehicle prioritizes selecting the first available stopping place, then the productivity of the system is improved, but the reliability of selecting an optimal stopping place deteriorates
Solution Approach 1:
The system pre-identifies multiple potential stopping places and evaluates their feasibility and desirability in advance. By having a pre-screened list of acceptable stopping places, the vehicle can quickly select from quality options rather than searching for the first available spot, thus maintaining both productivity and reliability.
Solution Approach 2:
The system changes the parameter of selection criteria by evaluating multiple attributes of potential stopping places (feasibility, desirability, current conditions) rather than simply selecting the first available option. This multi-parameter evaluation ensures optimality while maintaining efficiency through structured assessment.
3Reliability
If the autonomous vehicle system applies strict thresholds for acceptability and feasibility of stopping places, then the reliability of stopping place selection is improved, but the adaptability to dynamic environments deteriorates
Solution Approach 1:
The system dynamically adjusts its evaluation of stopping places based on current conditions while maintaining strict quality thresholds. The continuously analyzed current information about potential stopping places allows the system to adapt to environmental changes without compromising the reliability standards for acceptability and feasibility.
Solution Approach 2:
The system uses feedback from continuous analysis of current information to adjust its selection process. By monitoring real-time conditions and comparing them against established thresholds, the system maintains reliability while adapting to dynamic environments through informed decision-making about stopping place acceptability and feasibility.
Data Source
AI summary
Among other things, a vehicle is caused to drive autonomously through a road network toward a defined goal position, and, if no potential stopping place that is in the vicinity of the goal position and is acceptable and feasible can be identified, a human operator not onboard the vehicle is enabled to drive the vehicle to a stopping place.