3-d underactuated bipedal walking via h-lip based gait synthesis and stepping stabilization

X Xiong, A Ames - IEEE Transactions on Robotics, 2022 - ieeexplore.ieee.org
In this article, we holistically present a hybrid-linear inverted pendulum (H-LIP) based
approach for synthesizing and stabilizing 3-D foot-underactuated bipedal walking, with an …

Robust safety under stochastic uncertainty with discrete-time control barrier functions

RK Cosner, P Culbertson, AJ Taylor… - arXiv preprint arXiv …, 2023 - arxiv.org
Robots deployed in unstructured, real-world environments operate under considerable
uncertainty due to imperfect state estimates, model error, and disturbances. Given this real …

Safe control synthesis with uncertain dynamics and constraints

K Long, V Dhiman, M Leok, J Cortés… - IEEE Robotics and …, 2022 - ieeexplore.ieee.org
This paper considers safe control synthesis for dynamical systems with either probabilistic or
worst-case uncertainty in both the dynamics model and the safety constraints. We formulate …

A scenario approach to risk-aware safety-critical system verification

P Akella, M Ahmadi, AD Ames - arXiv preprint arXiv:2203.02595, 2022 - arxiv.org
With the growing interest in deploying robots in unstructured and uncertain environments,
there has been increasing interest in factoring risk into safety-critical control development …

Applications of Voronoi Diagrams in Multi-Robot Coverage: A Review

M Zhou, J Li, C Wang, J Wang, L Wang - Journal of Marine Science and …, 2024 - mdpi.com
In recent decades, multi-robot region coverage has played an important role in the fields of
environmental sensing, target searching, etc., and it has received widespread attention …

Risk-averse receding horizon motion planning for obstacle avoidance using coherent risk measures

A Dixit, M Ahmadi, JW Burdick - Artificial Intelligence, 2023 - Elsevier
This paper studies the problem of risk-averse receding horizon motion planning for agents
with uncertain dynamics, in the presence of stochastic, dynamic obstacles. We propose a …

Towards a theory of control architecture: A quantitative framework for layered multi-rate control

N Matni, AD Ames, JC Doyle - arXiv preprint arXiv:2401.15185, 2024 - arxiv.org
This paper focuses on the need for a rigorous theory of layered control architectures (LCAs)
for complex engineered and natural systems, such as power systems, communication …

Distributionally robust risk map for learning-based motion planning and control: A semidefinite programming approach

A Hakobyan, I Yang - IEEE Transactions on Robotics, 2022 - ieeexplore.ieee.org
In this article, we propose a novel safety specification tool, called the distributionally robust
risk map (DR-risk map), for a mobile robot operating in a learning-enabled environment …

Risk of stochastic systems for temporal logic specifications

L Lindemann, L Jiang, N Matni, GJ Pappas - ACM Transactions on …, 2023 - dl.acm.org
The wide availability of data coupled with the computational advances in artificial
intelligence and machine learning promise to enable many future technologies such as …

Guarantees on Robot System Performance Using Stochastic Simulation Rollouts

JA Vincent, AO Feldman, M Schwager - arXiv preprint arXiv:2309.10874, 2023 - arxiv.org
We provide finite-sample performance guarantees for control policies executed on
stochastic robotic systems. Given an open-or closed-loop policy and a finite set of trajectory …