String Stable Constant-Spacing Platoon with Robustness to Communication Delays and Cutoff

This dissertation develops a string stable, constant-spacing control strategy for connectedautonomous vehicle networks with robustness to communication delays and cutoff. It is well-known that decentralized constant-spacing strategies cannot achieve string stability, which requires the error to decrease as it propagates downstream. Introducing a centralized approach could achieve string stability in constant-spacing platoons. However, the benefits of introducing centralized control are questionable under communication limitations, like delays and cutoffs, which are common in modern traffic networks. Therefore, this thesis develops a new constant-spacing control approach that is robust to communication delays and cutoff. Moreover, this thesis develops conditions for guaranteeing string stability for constant-spacing policy (CSP) under communication delays. Furthermore, this dissertation applies the proposed control approach to a mixed vehicle network at a signalized intersection with vehicle-to-infrastructure (V2I) connectivity, as well as a human-led platoon.

Author dc:creator

• Lin, Yudong

Advisors dc:contributor.advisor

• Devasia, Santosh S.D.
• Fabien, Brian B.F

• Connected and automated vehicles (CAVs)
• Mixed traffic
• String stability
• Traffic capacity
• Vehicle network
• Transportation

Statement dc:rights

• CC BY

Language dc:language.iso

en_US

Handle dc:identifier.uri

http://hdl.handle.net/1773/51377

OAI identifier oai:identifier

oai:digital.lib.washington.edu:1773/51377