Title
Safety-Critical Kinematic Control of Robotic Systems
Abstract
Over the decades, kinematic controllers have proven to be practically useful for applications like set-point and trajectory tracking in robotic systems. To this end, we formulate a novel safety-critical paradigm by extending the methodology of control barrier functions (CBFs) to kinematic equations governing robotic systems. We demonstrate a purely kinematic implementation of a velocity-based CBF, and subsequently introduce a formulation that guarantees safety at the level of dynamics. This is achieved through a new form of CBFs that incorporate kinetic energy with the classical forms, thereby minimizing model dependence and conservativeness. The approach is then extended to underactuated systems. This method and the purely kinematic implementation are demonstrated in simulation on two robotic platforms: a 6-DOF robotic manipulator, and a cart-pole system.
Year
DOI
Venue
2022
10.1109/LCSYS.2021.3050609
IEEE Control Systems Letters
Keywords
DocType
Volume
Robotics,robust control,safety-critical control
Journal
6
ISSN
Citations 
PageRank 
2475-1456
1
0.39
References 
Authors
0
3
Name
Order
Citations
PageRank
Andrew Singletary110.39
Shishir Kolathaya2677.40
Aaron D. Ames31202136.68