V2X Vehicle Group Leader Selection for Deadlock-Free Maneuvers
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Solution Overview
Problem
Existing V2X communication systems face inefficiencies and computational burdens in managing vehicle maneuvers, particularly in forming groups and selecting leaders, leading to potential trajectory deadlocks and increased communication and computation loads.
Innovation Solution
A decentralized leader selection process for V2X vehicles, where vehicles determine their qualifications based on proximity to the maneuver's starting point and capabilities, allowing them to request and negotiate leadership within the group, reducing the need for extensive communication and computation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a decentralized leader selection process is implemented where vehicles determine qualifications based on proximity and capabilities, then communication overhead is minimized and computation load is reduced, but the complexity of the selection protocol increases
Solution Approach 1:
The patent changes the parameters used for leader selection from simple metrics (like rotation or efficiency) to multi-dimensional parameters including proximity to maneuver starting point and maneuver-related capabilities. This allows vehicles to qualify for leadership based on their actual suitability for the specific maneuver, reducing unnecessary communication while maintaining selection accuracy.
Solution Approach 2:
Vehicles autonomously determine their own qualifications for leadership based on their capabilities and proximity to the maneuver starting point. Each vehicle independently evaluates whether it meets the criteria (being closest to the starting point and having required capabilities) without requiring extensive negotiation or centralized coordination, thus minimizing communication overhead.
2Productivity
If leader selection is based on proximity to maneuver starting point and capabilities, then group formation efficiency is optimized, but the difficulty of detecting and measuring qualification criteria increases
Solution Approach 1:
Vehicles pre-assess their own qualifications for leadership based on their capabilities and proximity to the maneuver starting point before initiating group formation. This preliminary self-evaluation allows vehicles to quickly determine if they are suitable candidates for leadership, enabling faster group formation without requiring complex real-time negotiations about qualifications.
Solution Approach 2:
The qualification criteria are segmented into distinct, measurable components: proximity to the maneuver starting point (a spatial measurement) and maneuver-related capabilities (discrete capability checks). This segmentation makes the criteria easier to detect and measure by breaking down the complex evaluation into manageable, independent assessments.
3Measurement precision
If extensive communication and computation are used for leader selection, then more accurate leader qualification determination is achieved, but trajectory deadlocks increase and real-time decision-making is compromised
Solution Approach 1:
Vehicles independently determine their own leadership qualification by self-assessing their proximity to the maneuver starting point and their capabilities. This self-service approach eliminates the need for extensive inter-vehicle communication and computation to verify qualifications, enabling rapid real-time decision-making while maintaining accurate leader selection based on objective criteria.
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 3A~3B
AI summary
Techniques described herein provide for leader selection of a group of vehicles, based on inter-vehicle communications. According to embodiments, a host vehicle can determine it qualifies to be the leader of a potential group by comparing vehicle information of other cars in the potential group with its own vehicle information. Once the determination has been made, the host can then a request to be the group leader to the other vehicles. If the other vehicles accept, the host vehicle can initiate group formation. Otherwise, another vehicle can reject the request and send its own request to become the group leader, reinitiating group leader negotiation until a group leader is determined.