Efficient Motion Planning for Manipulators with Control Barrier Function-Induced Neural Controller

M Yu, C Yu, MM Naddaf-Sh… - … on Robotics and …, 2024 - ieeexplore.ieee.org
Sampling-based motion planning methods for manipulators in crowded environments often
suffer from expensive collision checking and high sampling complexity, which make them …

State constrained stochastic optimal control for continuous and hybrid dynamical systems using DFBSDE

B Dai, P Krishnamurthy, A Papanicolaou, F Khorrami - Automatica, 2023 - Elsevier
We develop a computationally efficient learning-based forward–backward stochastic
differential equations (FBSDE) controller for both continuous and hybrid dynamical (HD) …

Real-time perceptive motion control using control barrier functions with analytical smoothing for six-wheeled-telescopic-legged robot Tachyon 3

N Takasugi, M Kinoshita, Y Kamikawa… - 2024 IEEE/RSJ …, 2024 - ieeexplore.ieee.org
To achieve safe legged locomotion, it is crucial to generate motion in real-time considering
various constraints in robots and environments. In this study, we propose a lightweight real …

Grounding LLMs For Robot Task Planning Using Closed-loop State Feedback

V Bhat, AU Kaypak, P Krishnamurthy, R Karri… - arXiv preprint arXiv …, 2024 - arxiv.org
Robotic planning algorithms direct agents to perform actions within diverse environments to
accomplish a task. Large Language Models (LLMs) like PaLM 2, GPT-3.5, and GPT-4 have …

A control barrier function-based motion planning scheme for a quadruped robot

HU Unlu, VM Gonçalves, D Chaikalis… - … on Robotics and …, 2024 - ieeexplore.ieee.org
A Control Barrier Function (CBF)-based motion planning algorithm is proposed. The
algorithm explores an unknown environment to reach a target point, providing velocity …

Avoiding undesirable equilibria in control barrier function approaches for multi-robot planar systems

VM Gonçalves, P Krishnamurthy… - … on Control and …, 2023 - ieeexplore.ieee.org
Control Barrier Functions (CBFs) when paired with Quadratic Programming offer an efficient
way to generate safety-critical controllers. In this paper, we utilize CBFs for guiding multiple …

Collision-Free Trajectory Optimization in Cluttered Environments Using Sums-of-Squares Programming

Y Li, C Zheng, K Chen, Y Xie, X Tang… - IEEE Robotics and …, 2024 - ieeexplore.ieee.org
In this work, we propose a trajectory optimization approach for robot navigation in cluttered
3D environments. We represent the robot's geometry as a semialgebraic set defined by …

Safe multi-agent drone control using control barrier functions and acceleration fields

VM Gonçalves, D Chaikalis, A Tzes… - Robotics and Autonomous …, 2024 - Elsevier
The objective of this article is to develop real-time controllers for positioning multi-agent
autonomous platforms (specifically drones) without any collisions. The framework is divided …

DiffOcclusion: Differentiable Optimization Based Control Barrier Functions for Occlusion-Free Visual Servoing

S Wei, B Dai, R Khorrambakht… - IEEE Robotics and …, 2024 - ieeexplore.ieee.org
The visibility (possibly partial) of some image features is crucial to a broad class of visual
servoing-based control. In this letter, we consider the setting of image-based visual servoing …

Geometric Projectors: Geometric Constraints based Optimization for Robot Behaviors

X Chi, T Löw, Y Li, Z Liu, S Calinon - arXiv preprint arXiv:2309.08802, 2023 - arxiv.org
Generating motion for robots that interact with objects of various shapes is a complex
challenge, further complicated when the robot's own geometry and multiple desired …