Nonsmooth barrier functions with applications to multi-robot systems

P Glotfelter, J Cortés, M Egerstedt - IEEE control systems letters, 2017 - ieeexplore.ieee.org
As multi-agent systems become more wide-spread and versatile, the ability to satisfy
multiple system-level constraints grows increasingly important. In applications ranging from …

Hybrid nonsmooth barrier functions with applications to provably safe and composable collision avoidance for robotic systems

P Glotfelter, I Buckley… - IEEE Robotics and …, 2019 - ieeexplore.ieee.org
Robots are entering an age of ubiquity, and to operate effectively, these systems must
typically satisfy a series of constraints (eg, collision avoidance, obeying speed limits …

Multi-objective compositions for collision-free connectivity maintenance in teams of mobile robots

L Wang, AD Ames, M Egerstedt - 2016 IEEE 55th Conference …, 2016 - ieeexplore.ieee.org
Compositional barrier functions are proposed in this paper to systematically compose
multiple objectives for teams of mobile robots. The objectives are first encoded as barrier …

Safe multi-agent interaction through robust control barrier functions with learned uncertainties

R Cheng, MJ Khojasteh, AD Ames… - 2020 59th IEEE …, 2020 - ieeexplore.ieee.org
Robots operating in real world settings must navigate and maintain safety while interacting
with many heterogeneous agents and obstacles. Multi-Agent Control Barrier Functions …

Safe policy synthesis in multi-agent POMDPs via discrete-time barrier functions

M Ahmadi, A Singletary, JW Burdick… - 2019 IEEE 58th …, 2019 - ieeexplore.ieee.org
A multi-agent partially observable Markov decision process (MPOMDP) is a modeling
paradigm used for high-level planning of heterogeneous autonomous agents subject to …

Control barrier functions: Theory and applications

AD Ames, S Coogan, M Egerstedt… - 2019 18th European …, 2019 - ieeexplore.ieee.org
This paper provides an introduction and overview of recent work on control barrier functions
and their use to verify and enforce safety properties in the context of (optimization based) …

Safety barrier certificates for heterogeneous multi-robot systems

L Wang, A Ames, M Egerstedt - 2016 American control …, 2016 - ieeexplore.ieee.org
This paper presents a formal framework for collision avoidance in multi-robot systems,
wherein an existing controller is modified in a minimally invasive fashion to ensure safety …

Refining control barrier functions through Hamilton-Jacobi reachability

S Tonkens, S Herbert - 2022 IEEE/RSJ International …, 2022 - ieeexplore.ieee.org
Safety filters based on Control Barrier Functions (CBFs) have emerged as a practical tool for
the safety-critical control of autonomous systems. These approaches encode safety through …

Control of mobile robots using barrier functions under temporal logic specifications

M Srinivasan, S Coogan - IEEE Transactions on Robotics, 2020 - ieeexplore.ieee.org
In this article, we propose a framework for the control of mobile robots subject to temporal
logic specifications using barrier functions. Complex task specifications can be conveniently …

High-order control barrier functions

W Xiao, C Belta - IEEE Transactions on Automatic Control, 2021 - ieeexplore.ieee.org
We approach the problem of stabilizing a dynamical system while optimizing a cost and
satisfying safety constraints and control limitations. For (nonlinear) affine control systems …