no code implementations • 27 Jan 2023 • Fernando Castañeda, Haruki Nishimura, Rowan Mcallister, Koushil Sreenath, Adrien Gaidon
Learning-based control approaches have shown great promise in performing complex tasks directly from high-dimensional perception data for real robotic systems.
no code implementations • 23 Aug 2022 • Fernando Castañeda, Jason J. Choi, Wonsuhk Jung, Bike Zhang, Claire J. Tomlin, Koushil Sreenath
This feasibility analysis results in a set of richness conditions that the available information about the system should satisfy to guarantee that a safe control action can be found at all times.
no code implementations • 13 Jun 2021 • Fernando Castañeda, Jason J. Choi, Bike Zhang, Claire J. Tomlin, Koushil Sreenath
However, since these constraints rely on a model of the system, when this model is inaccurate the guarantees of safety and stability can be easily lost.
no code implementations • 14 Nov 2020 • Fernando Castañeda, Jason J. Choi, Bike Zhang, Claire J. Tomlin, Koushil Sreenath
This paper presents a method to design a min-norm Control Lyapunov Function (CLF)-based stabilizing controller for a control-affine system with uncertain dynamics using Gaussian Process (GP) regression.
no code implementations • 16 Apr 2020 • Jason Choi, Fernando Castañeda, Claire J. Tomlin, Koushil Sreenath
In this paper, the issue of model uncertainty in safety-critical control is addressed with a data-driven approach.
no code implementations • L4DC 2020 • Fernando Castañeda, Mathias Wulfman, Ayush Agrawal, Tyler Westenbroek, Claire J. Tomlin, S. Shankar Sastry, Koushil Sreenath
The main drawbacks of input-output linearizing controllers are the need for precise dynamics models and not being able to account for input constraints.