Distributed Road Resource Allocation for Vehicle Maneuver Conflicts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current V2X communication systems lack an efficient method for resolving conflicts between vehicles competing for shared road resources, such as lane changes or intersection crossings, leading to potential collisions due to the lack of precise decision-making algorithms for access to these resources.
Innovation Solution
Implementing a conflict resolution procedure using maneuver sharing intent messages that include vehicle momentum, priority, urgency, and intended trajectory data, allowing each vehicle to independently determine access to a road resource through a distributed decision-making algorithm, ensuring safe and efficient use of shared road resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If vehicles independently perform conflict resolution procedures without centralized coordination, then decision-making speed and system responsiveness are improved, but the risk of conflicting decisions and collisions increases
Solution Approach 1:
The patent merges the conflict resolution capabilities of multiple vehicles by having them execute the same distributed algorithm independently. Each vehicle combines its local state information with received maneuver sharing intent messages from other vehicles to reach a unified decision, ensuring that all vehicles arrive at the same conclusion about resource allocation without requiring centralized coordination.
Solution Approach 2:
The system implements feedback through maneuver sharing intent messages that are exchanged between vehicles. Each vehicle broadcasts its intended maneuvers and receives feedback from other vehicles about their intentions. This feedback loop allows vehicles to adjust their decisions based on the responses from others, ensuring consistent conflict resolution while maintaining independent decision-making speed.
2Measurement precision
If vehicles exchange detailed maneuver sharing intent messages including momentum, priority, urgency, and trajectory data, then conflict resolution accuracy is improved, but communication overhead and data processing complexity increase
Solution Approach 1:
The patent extracts only the essential parameters needed for conflict resolution from the complete vehicle state information. Instead of exchanging all possible vehicle data, the system selectively transmits maneuver sharing intent messages containing specifically the momentum, priority, urgency, and trajectory data required for determining road resource access, reducing communication overhead while maintaining resolution accuracy.
Solution Approach 2:
The maneuver sharing intent message structure serves multiple functions simultaneously: it conveys the vehicle's intended maneuver, provides conflict resolution input data, enables priority-based decision-making, and facilitates trajectory coordination. This multi-functional message design reduces the need for separate communication protocols for each function, lowering overall system complexity.
3Reliability
If the conflict resolution procedure considers multiple factors including momentum, priority, and urgency, then fairness and safety of resource allocation are improved, but the computational complexity of the decision algorithm increases
Solution Approach 1:
The conflict resolution algorithm is segmented into distinct evaluation stages corresponding to different factors: momentum assessment, priority comparison, and urgency evaluation. Each factor is processed independently in sequence, allowing the system to consider multiple criteria for safe and fair resource allocation while keeping the computational complexity manageable through modular processing.
4Productivity
If vehicles autonomously determine access to road resources through distributed algorithms, then system responsiveness and scalability are improved, but the difficulty of ensuring consistent decisions across all vehicles increases
Solution Approach 1:
The patent uses parameter changes in the maneuver sharing intent messages to ensure decision consistency. By standardizing the parameters included in the messages (momentum, priority, urgency, trajectory) and ensuring all vehicles use the same parameter definitions and evaluation criteria, the system maintains consistent decisions across all vehicles while preserving autonomous distributed operation and system responsiveness.
Data Source
AI summary
A road resource is identified, according to one or more maneuver sharing intent messages received to the vehicle via a transceiver of a vehicle, where the road resource is contested between the vehicle and one or more other vehicles and includes a portion of a roadway to be traversed by the vehicle and also the one or more other vehicles. A conflict resolution procedure is performed to determine whether the vehicle gains access to the road resource, wherein the conflict resolution procedure is independently performed by each of the vehicle and the one or more other vehicles. One of the vehicle or the one or more other vehicles is granted access to the road resource based on the conflict resolution procedure.