60 citations · 150 across the 24 of their papers we have counts for
17 papers · 1 filter
Nonlinear Cruise Controllers with Bidirectional Sensing for a String of Vehicles
Iasson Karafyllis, Dionysios Theodosis, Markos Papageorgiou
We introduce a nonlinear cruise controller that is fully decentralized (by vehicle) and uses spacing and speed measurements from the preceding and following vehicles to decide on t…
From Road Congestion to Vehicle-Control Enabled Artificial Traffic Fluids
Iasson Karafyllis, Dionysios Theodosis, Markos Papageorgiou +1
This article provides an overview of the design of nonlinear feedback Cruise Controllers (CCs) for automated vehicles on lane-free roads. The feedback design problem is particularl…
Forward Completeness and Applications to Control of Automated Vehicles
Iasson Karafyllis, Dionysis Theodosis, Markos Papageorgiou
Forward complete systems are guaranteed to have solutions that exist globally for all positive time. In this paper, a relaxed Lyapunov-like condition for forward completeness is pr…
Modified Dynamic Programming Algorithms for GLOSA Systems with Stochastic Signal Switching Times
Panagiotis Typaldos, Markos Papageorgiou
A discrete-time stochastic optimal control problem was recently proposed to address the GLOSA (Green Light Optimal Speed Advisory) problem in cases where the next signal switching…
Cruise Controllers for Lane-Free Ring-Roads based on Control Lyapunov Functions
Dionysis Theodosis, Iasson Karafyllis, Markos Papageorgiou
The paper introduces novel families of cruise controllers for autonomous vehicles on lane-free ring-roads. The design of the cruise controllers is based on the appropriate selectio…
Constructing Artificial Traffic Fluids by Designing Cruise Controllers
Iasson Karafyllis, Dionysis Theodosis, Markos Papageorgiou
In this paper, we apply a Control Lyapunov Function methodology to design two families of cruise controllers for the two-dimensional movement of autonomous vehicles on lane-free ro…
Stability Analysis of Nonlinear Inviscid Microscopic and Macroscopic Traffic Flow Models of Bidirectional Cruise-Controlled Vehicles
Iasson Karafyllis, Dionysis Theodosis, Markos Papageorgiou
The paper introduces a new bidirectional microscopic inviscid Adaptive Cruise Control (ACC) model that uses only spacing information from the preceding and following vehicles in or…
Two-Dimensional Cruise Control of Autonomous Vehicles on Lane-Free Roads
Iasson Karafyllis, Dionysis Theodosis, Markos Papageorgiou
In this paper, we design decentralized control strategies for the two-dimensional movement of autonomous vehicles on lane-free roads. The bicycle kinematic model is used to model t…
Analysis and Control of a Non-Local PDE Traffic Flow Model
Iasson Karafyllis, Dionysis Theodosis, Markos Papageorgiou
The paper provides conditions that guarantee existence and uniqueness of classical solutions for a non-local conservation law on a ring-road with possible nudging (or "look behind"…
Feedback Control of Scalar Conservation Laws with Application to Density Control in Freeways by Means of Variable Speed Limits
Iasson Karafyllis, Markos Papageorgiou
The paper provides results for the stabilization of a spatially uniform equilibrium profile for a scalar conservation law that arises in the study of traffic dynamics under variabl…
Analysis and Control of a Non-Standard Hyperbolic PDE Traffic Flow Model
Iasson Karafyllis, Nikolaos Bekiaris-Liberis, Markos Papageorgiou
The paper provides results for a non-standard, hyperbolic, 1-D, nonlinear traffic flow model on a bounded domain. The model consists of two first-order PDEs with a dynamic boundary…
Global Exponential Stabilization of Acyclic Traffic Networks
Maria Kontorinaki, Iasson Karafyllis, Markos Papageorgiou
This work is devoted to the construction of explicit feedback control laws for the robust, global, exponential stabilization of general, uncertain, discrete-time, acyclic traffic n…
Robust Global Adaptive Exponential Stabilization of Discrete-Time Systems with Application to Freeway Traffic Control
Iasson Karafyllis, Maria Kontorinaki, Markos Papageorgiou
This paper is devoted to the development of adaptive control schemes for uncertain discrete-time systems, which guarantee robust, global, exponential convergence to the desired equ…
Highway Traffic State Estimation with Mixed Connected and Conventional Vehicles
Nikolaos Bekiaris-Liberis, Claudio Roncoli, Markos Papageorgiou
A macroscopic model-based approach for estimation of the traffic state, specifically of the (total) density and flow of vehicles, is developed for the case of "mixed" traffic, i.e.…
Global Exponential Stabilization of Freeway Models
Iasson Karafyllis, Maria Kontorinaki, Markos Papageorgiou
This work is devoted to the construction of feedback laws which guarantee the robust global exponential stability of the uncongested equilibrium point for general discrete-time fre…
Global Stability Results for Traffic Networks
Iasson Karafyllis, Markos Papageorgiou
This paper provides sufficient conditions for global asymptotic stability and global exponential stability, which can be applied to nonlinear, large-scale, uncertain discrete-time…
Stability Results for Simple Traffic Models Under PI-Regulator Control
Iasson Karafyllis, Markos Papageorgiou
This paper provides necessary conditions and sufficient conditions for the (global) Input-to-State Stability property of simple uncertain vehicular-traffic network models under the…