The safety filter: A unified view of safety-critical control in autonomous systems

KC Hsu, H Hu, JF Fisac - Annual Review of Control, Robotics …, 2023‏ - annualreviews.org
Recent years have seen significant progress in the realm of robot autonomy, accompanied
by the expanding reach of robotic technologies. However, the emergence of new …

Safety-critical control for autonomous systems: Control barrier functions via reduced-order models

MH Cohen, TG Molnar, AD Ames - Annual Reviews in Control, 2024‏ - Elsevier
Modern autonomous systems, such as flying, legged, and wheeled robots, are generally
characterized by high-dimensional nonlinear dynamics, which presents challenges for …

Safe control with learned certificates: A survey of neural lyapunov, barrier, and contraction methods for robotics and control

C Dawson, S Gao, C Fan - IEEE Transactions on Robotics, 2023‏ - ieeexplore.ieee.org
Learning-enabled control systems have demonstrated impressive empirical performance on
challenging control problems in robotics, but this performance comes at the cost of reduced …

High-order control barrier functions

W **ao, 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 …

Barriernet: Differentiable control barrier functions for learning of safe robot control

W **ao, TH Wang, R Hasani, M Chahine… - IEEE Transactions …, 2023‏ - ieeexplore.ieee.org
Many safety-critical applications of neural networks, such as robotic control, require safety
guarantees. This article introduces a method for ensuring the safety of learned models for …

Data-driven safety filters: Hamilton-jacobi reachability, control barrier functions, and predictive methods for uncertain systems

KP Wabersich, AJ Taylor, JJ Choi… - IEEE Control …, 2023‏ - ieeexplore.ieee.org
Today's control engineering problems exhibit an unprecedented complexity, with examples
including the reliable integration of renewable energy sources into power grids, safe …

Control barrier functions and input-to-state safety with application to automated vehicles

A Alan, AJ Taylor, CR He, AD Ames… - IEEE Transactions on …, 2023‏ - ieeexplore.ieee.org
Balancing safety and performance is one of the predominant challenges in modern control
system design. Moreover, it is crucial to robustly ensure safety without inducing unnecessary …

Learning safe multi-agent control with decentralized neural barrier certificates

Z Qin, K Zhang, Y Chen, J Chen, C Fan - arxiv preprint arxiv:2101.05436, 2021‏ - arxiv.org
We study the multi-agent safe control problem where agents should avoid collisions to static
obstacles and collisions with each other while reaching their goals. Our core idea is to learn …

Safe control under input limits with neural control barrier functions

S Liu, C Liu, J Dolan - Conference on Robot Learning, 2023‏ - proceedings.mlr.press
We propose new methods to synthesize control barrier function (CBF) based safe controllers
that avoid input saturation, which can cause safety violations. In particular, our method is …

Model-free safe reinforcement learning through neural barrier certificate

Y Yang, Y Jiang, Y Liu, J Chen… - IEEE Robotics and …, 2023‏ - ieeexplore.ieee.org
Safety is a critical concern when applying reinforcement learning (RL) to real-world control
tasks. However, existing safe RL works either only consider expected safety constraint …