Adaptive Vehicle Grouping via Dynamic Message Rate Control
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Solution Overview
Problem
Existing traffic control systems face challenges in maintaining traffic flow due to environmental changes and limitations in communication resources, particularly in denser traffic conditions.
Innovation Solution
A management system that adapts communication parameters, such as transmission rate and message type, based on traffic conditions to improve vehicle grouping and damping of disturbances through messaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the transmission rate of messages is increased to improve string stability and damping of disturbances in vehicle groups, then the performance of vehicle grouping is improved, but wireless resources become overloaded and system efficiency decreases
Solution Approach 1:
The system dynamically adapts the transmission rate of messages based on traffic conditions, group size, and disturbance levels. Rather than using a fixed high transmission rate that overloads wireless resources, the system adjusts the rate in real-time to maintain string stability only when necessary, thereby resolving the contradiction between reliability and productivity
Solution Approach 2:
The system changes communication parameters (transmission rate, message type) based on traffic conditions and group characteristics. By adjusting these parameters dynamically, the system maintains adequate string stability while avoiding excessive resource consumption, thus resolving the trade-off between reliability and productivity
2Reliability
If the transmission rate of messages is increased to dampen disturbances in denser traffic, then disturbance attenuation is improved, but communication bandwidth is consumed excessively
Solution Approach 1:
The system applies different transmission rates to different vehicles within the group based on their position and the local traffic conditions. Vehicles experiencing higher disturbances receive more frequent messages, while others use lower rates, thus achieving effective disturbance attenuation without excessive overall bandwidth consumption
Solution Approach 2:
The transmission rate is dynamically adjusted based on real-time traffic conditions and disturbance levels. When disturbances are detected, the system increases transmission rates locally; when conditions are stable, rates are reduced, thereby resolving the contradiction between disturbance attenuation and bandwidth consumption
3Reliability
If message transmission rate is increased excessively to maintain grouping performance, then string stability is maintained, but system performance improves marginally while resource load increases significantly
Solution Approach 1:
The system uses partial action by transmitting messages at the minimum necessary rate to maintain string stability rather than using excessive transmission rates. This approach achieves adequate performance while avoiding the diminishing returns and excessive resource consumption associated with overly frequent messaging
Data Source
AI summary
Systems, methods, and other embodiments described herein relate to grouping vehicles by adapting communication parameters for damping disturbances through messaging. In one embodiment, a method includes acquiring sensor data and information from surrounding vehicles. The method also includes identifying traffic conditions for grouping with the vehicles on a road according to the sensor data and the information. The method also includes adapting communication parameters of messages for damping an environmental disturbance that includes factoring the traffic conditions and communicating the messages towards the vehicles until grouping parameters are satisfied, and the damping varies by vehicle positions among the vehicles.