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Shared control in assistive robotics blends human autonomy with computer assistance, thus simplifying complex tasks for individuals with physical impairments. This study assesses an adaptive Degrees of Freedom control method specifically…

Human-Computer Interaction · Computer Science 2024-06-11 Felix Ferdinand Goldau , Max Pascher , Annalies Baumeister , Patrizia Tolle , Jens Gerken , Udo Frese

Rigorous development processes aim to be effective in developing critical systems, especially if failures can have catastrophic consequences for humans and the environment. Such processes generally rely on formal methods, which can…

Formal Languages and Automata Theory · Computer Science 2021-11-17 Andrea Bombarda , Silvia Bonfanti , Angelo Gargantini , Elvinia Riccobene

Navigation problems under unknown varying conditions are among the most important and well-studied problems in the control field. Classic model-based adaptive control methods can be applied only when a convenient model of the plant or…

Utilizing wind hovering techniques of soaring birds can save energy expenditure and improve the flight endurance of micro air vehicles (MAVs). Here, we present a novel method for fully autonomous orographic soaring without a priori…

Robotics · Computer Science 2023-08-02 Sunyou Hwang , Bart D. W. Remes , Guido C. H. E. de Croon

In this paper a novel aerial manipulation system is proposed. The mechanical structure of the system, the number of thrusters and their geometry will be derived from technical optimization problems. The aforementioned problems are defined…

Robotics · Computer Science 2015-02-27 Alexandros Nikou , Georgios C. Gavridis , Kostas J. Kyriakopoulos

In this study, we propose an optimal assistive control strategy that uses estimated user's movement intention as the terminal cost function. We estimate the movement intention by observing human user's joint angle, angluar velocity, and…

Robotics · Computer Science 2019-09-06 Jun-ichiro Furukawa , Jun Morimoto

In controlling systems with large operating envelopes, it is often necessary to adjust the desired dynamics according to operating conditions. This paper presents a robust adaptive control architecture for linear parameter-varying (LPV)…

Systems and Control · Electrical Eng. & Systems 2024-07-31 Pan Zhao , Steven Snyder , Naira Hovakimyana , Chengyu Cao

We study the low-bias stabilization of active magnetic bearings (AMBs) subject to voltage saturation based on a recently proposed model for the AMB switching mode of operation. Using a forwarding-like approach, we construct a stabilizing…

Optimization and Control · Mathematics 2016-11-18 Frederic Mazenc , Marcio S. de Queiroz , Michael Malisoff , Feng Gao

This paper is an addition to an article previously published by three of the authors that addresses the control of convertible fixed-wing aircraft with vectorized thrust. The control solution here developed extends the one presented in the…

Systems and Control · Electrical Eng. & Systems 2023-11-28 Tomas Lopes de Oliveira , Andre Anglade , Tarek Hamel , Claude Samson

Tracking position and orientation independently affords more agile maneuver for over-actuated multirotor Unmanned Aerial Vehicles (UAVs) while introducing undesired downwash effects; downwash flows generated by thrust generators may…

Robotics · Computer Science 2022-07-21 Yao Su , Chi Chu , Meng Wang , Jiarui Li , Liu Yang , Yixin Zhu , Hangxin Liu

We report on the design and characterisation of an air-bearing suspension that has been constructed to highlight the properties of torsion balances with fibres of zero length. A float is levitated on this suspension and its rotational and…

Instrumentation and Detectors · Physics 2020-02-11 C. Gettings , C. C. Speake

Autopilots for fixed-wing aircraft are typically designed based on linearized aerodynamic models consisting of stability and control derivatives obtained from wind-tunnel testing. The resulting local controllers are then pieced together…

Systems and Control · Electrical Eng. & Systems 2024-02-02 Riley J. Richards , Juan A. Paredes , Dennis S. Bernstein

This work presents an on-going investigation of the control of a pneumatic soft-robot actuator addressing accurate patient positioning systems in maskless head and neck cancer radiotherapy. We employ two RGB-D sensors in a sensor fusion…

Robotics · Computer Science 2016-10-06 Olalekan P. Ogunmolu , Xuejun Gu , Steve Jiang , Nicholas R. Gans

We present an orientation adaptive controller to compensate for the effects of highly constrained environments on continuum manipulator actuation. A transformation matrix updated using optimal estimation techniques from optical flow…

Robotics · Computer Science 2019-09-04 Mrinal Verghese , Florian Richter , Aaron Gunn , Phil Weissbrod , Michael Yip

Input constraints as well as parametric uncertainties must be accounted for in the design of safe control systems. This paper presents an adaptive controller for multiple-input-multiple-output (MIMO) plants with input magnitude and rate…

Optimization and Control · Mathematics 2019-07-30 Joseph E. Gaudio , Anuradha M. Annaswamy , Michael A. Bolender , Eugene Lavretsky

We show that the energy required by a turbulent flow to displace a given amount of fluid through a straight duct in a given time interval can be reduced by modulating in time the pumping power. The control strategy is hybrid: it is passive,…

Fluid Dynamics · Physics 2024-05-15 Giulio Foggi Rota , Alessandro Monti , Marco E. Rosti , Maurizio Quadrio

Sample-based learning model predictive control (LMPC) strategies have recently attracted attention due to their desirable theoretical properties and their good empirical performance on robotic tasks. However, prior analysis of LMPC…

Systems and Control · Electrical Eng. & Systems 2020-05-19 Brijen Thananjeyan , Ashwin Balakrishna , Ugo Rosolia , Joseph E. Gonzalez , Aaron Ames , Ken Goldberg

This study addresses the challenge of low dexterity in teleoperation tasks caused by limited sensory feedback and visual occlusion. We propose a novel approach that integrates haptic feedback into teleoperation using the adaptive triggers…

Semi-autonomous prosthesis controllers based on computer vision improve performance while reducing cognitive effort. However, controllers relying on full-depth data face challenges in being deployed as embedded prosthesis controllers due to…

Computer Vision and Pattern Recognition · Computer Science 2025-07-28 Miguel Nobre Castro , Strahinja Dosen

Recent spacecraft mission concepts propose larger payloads that have lighter, less rigid structures. For large lightweight structures, the natural frequencies of their vibration modes may fall within the attitude controller bandwidth,…

Instrumentation and Methods for Astrophysics · Physics 2024-11-04 Pedro Cachim , Will Kraus , Zachary Manchester , Pedro Lourenco , Rodrigo Ventura
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