Results 211 to 220 of about 497,650 (279)

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

open access: yesAdvanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao   +5 more
wiley   +1 more source

Differential Flatness and Absolute Equivalence of Nonlinear Control Systems

SIAM Journal on Control and Optimization, 1998
A traditional approach to solving the problem of equivalence of nonlinear systems (in particular, to linear systems, i.e., feedback linearization) consists of working in the context of differential geometry. Numerous results in that area are available, and typically, the conditions for feedback linearizability are given in terms of involutivity of ...
Richard M Murray
exaly   +3 more sources

Differential flatness-based adaptive robust tracking control for wheeled mobile robots with slippage disturbances.

ISA transactions, 2023
Wheeled mobile robots (WMRs) have a wide range of applications in logistics transportation and industrial productions, among which the motion control has always been one of the hot spots in the current WMR researches.
Wang Yuan   +3 more
semanticscholar   +1 more source

Safety Flight Control for a Quadrotor UAV Using Differential Flatness and Dual-Loop Observers

IEEE transactions on industrial electronics (1982. Print), 2022
Focusing on a quadrotor unmanned aerial vehicle (UAV), the presence of unintended actuator faults and external disturbances increases the risk of a crash.
Xiang Yu   +5 more
semanticscholar   +1 more source

Integrated Control of Active Front Wheel Steering and Active Suspension Based on Differential Flatness and Nonlinear Disturbance Observer

IEEE Transactions on Vehicular Technology, 2022
Mechanical elastic wheel (MEW) has the advantage of explosion-proof, which helps to guarantee the safety and maneuverability of the automobile. Aiming to improve the stability of vehicles matching with MEW, this paper proposes an integrated control ...
Han Xu   +5 more
semanticscholar   +1 more source

CONTROL OF THE DIFFERENTIALLY FLAT LORENZ SYSTEM

International Journal of Bifurcation and Chaos, 2001
This paper presents an approach for the control of the Lorenz system. We first show that the controlled Lorenz system is differentially flat and then compute the flat output of the Lorenz system. A two degree of freedom design approach is proposed such that the generation of full state feasible trajectory incorporates with the design of a tracking ...
Jin Man Joo, Jin Bae Park
openaire   +1 more source

On the differential flatness and control of electrostatically actuated MEMS

Proceedings of the 2005, American Control Conference, 2005., 2005
Extending the stable travelling range of actuators forms one of the central topics in the control of electrostatically actuated MEMS. Though certain control schemes, such as charge control, capacitive feedback, and input-output linearization, can extend the travelling range to the full gap, the transient behavior of actuators is dominated by their ...
Guchuan Zhu, Jean Lévine, Laurent Praly
openaire   +2 more sources

On Motion Planning and Control for Partially Differentially Flat Systems

Robotica, 2020
SUMMARYThis paper deals with motion planning and control problems for a class of partially differentially flat systems. They possess a feature that the derivative of the fiber variable can be represented purely by the base variable and its derivatives.
Yang Bai 0006   +3 more
openaire   +1 more source

CONTROL OF THE CHUA'S SYSTEM BASED ON A DIFFERENTIAL FLATNESS APPROACH

International Journal of Bifurcation and Chaos, 2004
In this paper, we present a flatness based control approach for the stabilization and tracking problem, for the well-known Chua chaotic circuit, that includes an additional input. We introduce two feedback controller design options for the set-point stabilization and the trajectory tracking problem: a direct pole placement approach, and Generalized ...
Carlos Aguilar Ibáñez   +2 more
openaire   +2 more sources

Sliding Mode Control of Quadrotor based on Differential Flatness

2018 International Conference on Control, Automation and Diagnosis (ICCAD), 2018
In this work, the differential flatness property and the sliding mode controller design are proposed for a quadrotor in order to track a predefined reference trajectory despite the presence of uncertain parameters. Firstly, differential flatness is utilized to resolve the problem for trajectory generation and tracking for the quadrotor. Next, a sliding
Abadi, Amine   +4 more
openaire   +2 more sources

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