Vehicular Maneuver Coordination for Emergency Group Response
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Solution Overview
Problem
Current automatic driving systems are reactive and prone to prediction errors, leading to inefficient driving and potential safety hazards due to incorrect maneuver predictions, and existing Maneuver Coordination Services (MCS) do not adequately address unexpected emergency road situations requiring rapid group maneuver coordination among vehicles.
Innovation Solution
The implementation of Emergency Group Maneuver Coordination (EGMC) protocols that enable vehicles to detect unexpected safety critical situations, identify a leader or operate in a distributed manner, negotiate and agree on a group maneuver plan, and execute coordinated maneuvers through decentralized message exchanges using V2X communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If prediction-based maneuvering is used, then driving efficiency may be improved, but prediction errors lead to safety hazards and incorrect maneuvers
Solution Approach 1:
The patent implements a feedback mechanism where vehicles exchange maneuver coordination messages to confirm or correct predicted maneuvers. The system continuously monitors the actual maneuvers of other vehicles and compares them with predictions, using this feedback to improve future prediction accuracy and correct errors in real-time.
Solution Approach 2:
The patent introduces an intermediary coordination layer that mediates between individual vehicle predictions and actual maneuvers. This intermediary system facilitates negotiation and coordination messages between vehicles, allowing them to reach consensus on maneuvers without relying solely on individual predictions, thus reducing prediction errors.
2Reliability
If reactive driving control is used, then safety can be maintained, but driving efficiency and responsiveness to future maneuvers are reduced
Solution Approach 1:
The patent enables preliminary action by allowing vehicles to negotiate and coordinate maneuvers before they are executed. Vehicles can propose intended maneuvers in advance and receive coordination messages from other vehicles, allowing safety checks to be performed proactively rather than reactively, thus maintaining safety while improving efficiency.
3Reliability
If maneuver coordination messages are exchanged between vehicles, then prediction errors are reduced, but communication overhead and system complexity increase
Solution Approach 1:
The patent segments the maneuver coordination process into distinct message types and communication phases. Different message formats are used for different purposes (maneuver proposals, coordination requests, acknowledgments), allowing the system to manage complexity through structured, modular communication rather than monolithic interactions.
4Reliability
If group maneuver coordination is implemented for emergency situations, then collision risk is reduced, but response time and coordination complexity increase
Solution Approach 1:
The patent implements dynamic coordination strategies that adapt to emergency situations. The system can switch between different coordination modes depending on the severity and type of emergency, allowing for rapid response when necessary while maintaining thorough coordination for less critical situations, thus balancing safety with response time.
Data Source
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AI summary
Disclosed embodiments include technologies related to Maneuver Coordination Services (MCS) in vehicular networks. Embodiments include Emergency Group Maneuver Coordination (EGMC) for detected unexpected safety-critical situations (USCS) on the road. EGMC provides cooperative maneuver coordination among a group of vehicles to ensure safer collective actions in the case of USCS. Embodiments include Maneuver Coordination Message (MCM) format and structure, details of contents of MCM message, and procedures for Generation and Transmission of MCM with reduced communication overhead. Other embodiments are described and/or claimed.