Cooperative Autonomous Driving for Traffic Deadlock Resolution
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Solution Overview
Problem
Autonomous vehicles face challenges in resolving traffic congestion when traveling at different speeds, as they often obstruct each other, leading to slow traffic flow and congestion, which existing technologies cannot address effectively without cooperation.
Innovation Solution
The implementation of a cooperative autonomous driving strategy using vehicle-to-vehicle communication to form coordination groups among autonomous vehicles, allowing them to exchange information and initiate actions such as lane changes and speed adjustments to resolve deadlock conditions and improve traffic flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If autonomous vehicles rely on local intelligence to resolve traffic congestion conditions, then individual vehicle autonomy is maintained, but traffic congestion cannot be effectively resolved when vehicles are traveling at different speeds and occupying all lanes
Solution Approach 1:
The patent introduces V2V communication technology as an intermediary mechanism that enables autonomous vehicles to exchange information and coordinate actions. This mediator allows vehicles to share speed, position, and lane occupancy data, facilitating collective decision-making to resolve congestion without requiring complex centralized control or sacrificing individual autonomy.
Solution Approach 2:
The patent combines individual vehicle intelligence with cooperative communication capabilities. By merging local decision-making algorithms with V2V communication protocols, the system achieves both individual autonomy and collective congestion resolution, allowing vehicles to operate independently while coordinating when congestion conditions are detected.
2Productivity
If autonomous vehicles travel closer together at higher speeds, then road capacity and efficiency are improved, but the risk of collision and traffic accidents increases
Solution Approach 1:
The patent implements preliminary detection of congestion conditions and proactive formation of coordination groups before collisions can occur. By continuously monitoring vehicle speeds, positions, and lane occupancies through V2V communication, the system identifies potential conflict scenarios in advance and coordinates lane changes or speed adjustments to prevent accidents while maintaining high road capacity.
3Device complexity
If existing autonomous driving strategies operate without V2V communication, then system complexity is reduced, but traffic flow efficiency improves by only limited margins compared to cooperative approaches
Solution Approach 1:
The patent implements a selective coordination approach where V2V communication and coordination group formation are activated only when congestion conditions are detected. During normal driving conditions, vehicles operate with simpler individual control, but when congestion is identified through speed and position monitoring, the system transitions to cooperative mode, providing enhanced traffic flow efficiency only when needed.
Data Source
AI summary
Systems and methods for traffic congestion avoidance may use cooperative autonomous driving based on vehicle-to-vehicle communication to resolve deadlock conditions. The method may include automatically detecting, by a given autonomous vehicle, that the given vehicle is deadlocked, initiating, by the given vehicle, formation of a coordination group including the given vehicle, a front vehicle traveling in the same driving lane as the given vehicle, and an assistant autonomous vehicle traveling in a lane adjacent to the lane in which the given vehicle and the front vehicle are traveling, and sending, by the given vehicle using vehicle-to-vehicle communication, a cooperative driving task request to initiate actions by the autonomous vehicles in the coordination group to resolve the deadlock condition. The actions may include modifying a driving plan of an autonomous vehicle in the coordination group and initiating a speed negotiation with an autonomous vehicle in the coordination group.