Connected Vehicle Maneuver Message Prioritization for Conflict Avoidance
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Solution Overview
Problem
Existing systems fail to effectively prioritize multiple maneuver messages from connected vehicles, leading to inefficiencies in cooperative maneuvers and potential conflicts.
Innovation Solution
A system that determines degrees of criticality for maneuvers and prioritizes maneuver messages based on these criticalities, allowing an ego vehicle to accept or reject messages to avoid undesirable situations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the ego vehicle cooperates with both initiating connected vehicles to satisfy both requests, then the satisfaction of maneuver requests is improved, but the safety and conflict avoidance deteriorates due to resource conflicts
Solution Approach 1:
The patent changes the parameter of maneuver message handling from equal treatment to priority-based treatment by introducing criticality levels (first, second, third degrees) and corresponding priority rules. This allows the system to differentiate between urgent and non-urgent maneuvers, resolving the conflict between satisfying all requests and maintaining safety by prioritizing critical maneuvers that require immediate attention.
2Reliability
If the ego vehicle selects one initiating connected vehicle to prioritize, then the safety and conflict avoidance is improved, but the satisfaction of maneuver requests deteriorates as other requests are rejected
Solution Approach 1:
The patent introduces a hierarchical parameter structure with three degrees of criticality (first degree for urgent safety maneuvers, second degree for important maneuvers, third degree for non-urgent maneuvers). This layered approach allows the system to satisfy multiple requests across different priority levels while maintaining safety by ensuring critical maneuvers are always prioritized, thus resolving the contradiction between selective prioritization and overall request satisfaction.
3Reliability
If the ego vehicle rejects all requested maneuvers, then the safety and conflict avoidance is maximized, but the productivity and traffic flow optimization deteriorates
Solution Approach 1:
The patent implements a graded response strategy based on criticality parameters rather than uniform rejection. By categorizing maneuvers into three priority levels, the system can accept and process non-critical maneuvers (third degree) that contribute to traffic flow optimization while maintaining strict safety controls on critical maneuvers (first degree). This resolves the contradiction by enabling selective acceptance that balances safety with productivity.
4Device complexity
If conventional systems handle multiple maneuver messages without prioritization, then the system complexity is minimized, but the decision-making efficiency and response time to critical maneuvers deteriorates
Solution Approach 1:
The patent introduces a priority parameter system with three distinct criticality levels that enables rapid decision-making through predefined handling rules. Instead of complex real-time optimization, the system uses simple priority-based dispatch: first-degree critical maneuvers are handled immediately, second-degree maneuvers are handled when resources permit, and third-degree maneuvers are handled when capacity allows. This parameter-based approach maintains relatively simple system architecture while dramatically improving response efficiency to critical events.
Data Source
AI summary
An ego vehicle includes a controller configured to receive a plurality of maneuver messages from a plurality of connected vehicles. The maneuver messages include maneuvers to be performed by the plurality of connected vehicles. The controller determines degrees of criticality for the maneuvers, determines priorities of the plurality of maneuver messages based on the degrees of criticality for the maneuvers, and determines whether to accept one or more of the plurality of maneuver messages based on the determined priorities.