Search Results for author: Gabor Orosz

Found 14 papers, 3 papers with code

On the Safety of Connected Cruise Control: Analysis and Synthesis with Control Barrier Functions

1 code implementation31 Aug 2023 Tamas G. Molnar, Gabor Orosz, Aaron D. Ames

Finally, we combine the analysis of safety measures and the corresponding stability charts to synthesize safety-critical connected cruise controllers using CBFs.

Coordination for Connected Automated Vehicles at Merging Roadways in Mixed Traffic Environment

no code implementations11 Apr 2023 Viet-Anh Le, Hao M. Wang, Gabor Orosz, Andreas A. Malikopoulos

In this paper, we present an optimal control framework to address motion coordination of connected automated vehicles (CAVs) in the presence of human-driven vehicles (HDVs) in merging scenarios.

Connected Cruise and Traffic Control for Pairs of Connected Automated Vehicles

no code implementations4 Dec 2022 Sicong Guo, Gabor Orosz, Tamas G. Molnar

This paper considers mixed traffic consisting of connected automated vehicles equipped with vehicle-to-everything (V2X) connectivity and human-driven vehicles.

Learning Time Delay Systems with Neural Ordinary Differential Equations

no code implementations28 Jun 2022 Xunbi A. Ji, Gabor Orosz

A novel way of using neural networks to learn the dynamics of time delay systems from sequential data is proposed.

Control Barrier Functionals: Safety-critical Control for Time Delay Systems

no code implementations16 Jun 2022 Adam K. Kiss, Tamas G. Molnar, Aaron D. Ames, Gabor Orosz

The theory of control barrier functions, that provides formal safety guarantees for delay-free systems, is extended to systems with state delay.

Input-to-State Safety with Input Delay in Longitudinal Vehicle Control

no code implementations29 May 2022 Tamas G. Molnar, Anil Alan, Adam K. Kiss, Aaron D. Ames, Gabor Orosz

Safe longitudinal control is discussed for a connected automated truck traveling behind a preceding connected vehicle.

Energy-efficient Connected Cruise Control with Lean Penetration of Connected Vehicles

no code implementations6 May 2022 Minghao Shen, Chaozhe R. He, Tamas Molnar, A. Harvey Bell, Gabor Orosz

This paper focuses on energy-efficient longitudinal controller design for a connected automated truck that travels in mixed traffic consisting of connected and non-connected vehicles.

Safety-Critical Control of Compartmental Epidemiological Models with Measurement Delays

no code implementations22 Sep 2020 Tamas G. Molnar, Andrew W. Singletary, Gabor Orosz, Aaron D. Ames

We introduce a methodology to guarantee safety against the spread of infectious diseases by viewing epidemiological models as control systems and by considering human interventions (such as quarantining or social distancing) as control input.

Feed-forward Neural Networks with Trainable Delay

no code implementations L4DC 2020 Xunbi Ji, Sergei Avedisov, Tamas Molnar, Gabor Orosz

In this paper we build a bridge between feed-forward neural networks and delayed dynamical systems.

Control Regularization for Reduced Variance Reinforcement Learning

1 code implementation14 May 2019 Richard Cheng, Abhinav Verma, Gabor Orosz, Swarat Chaudhuri, Yisong Yue, Joel W. Burdick

We show that functional regularization yields a bias-variance trade-off, and propose an adaptive tuning strategy to optimize this trade-off.

Continuous Control reinforcement-learning +1

End-to-End Safe Reinforcement Learning through Barrier Functions for Safety-Critical Continuous Control Tasks

1 code implementation21 Mar 2019 Richard Cheng, Gabor Orosz, Richard M. Murray, Joel W. Burdick

Reinforcement Learning (RL) algorithms have found limited success beyond simulated applications, and one main reason is the absence of safety guarantees during the learning process.

Continuous Control Gaussian Processes +2

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