Results 251 to 260 of about 36,818 (303)

Fault detection for quantized feedback systems with actuator faults

2016 American Control Conference (ACC), 2016
This paper investigates the fault detection problem of quantized feedback systems with actuator faults, and system outputs are respectively quantized by a uniform quantizer and a non-uniform quantizer. A new method is proposed to deal with quantization errors, that is, the quantization errors are considered as the unknown inputs of the residual ...
Fumin Guo, Xuemei Ren, Tianyi Zeng, Zhijun Li, Cunwu Han   +4 more
openaire   +1 more source

Fault Detection and Isolation of Actuator Faults in Overactuated Systems

2007 American Control Conference, 2007
This paper investigates development of fault detection and isolation (FDI) filters for overactuated systems. Due to input channels coupling effects and dependencies in overactuated systems, the necessary condition for applying geometric FDI approaches is not satisfied. In this work a geometric FDI approach for linear systems is extended to overactuated
Nader Meskin, Khashayar Khorasani
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Inputs estimator for actuator faults detection

2017 International Conference on Control, Automation and Diagnosis (ICCAD), 2017
This paper proposes a fault detection method for a particular class of nonlinear flat system using a dynamic higher order sliding mode. The key idea consists to design an inputs estimator based on analytical redundancy relations by solving a constraint satisfaction problem. Indeed, the analytical redundancy relations require knowledge of the successive
O. Dhaou, Lilia Sidhom, Ines Chihi, A. Abdlekrim   +3 more
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PROGRESSIVE ACCOMMODATION OF AIRCRAFT ACTUATOR FAULTS

IFAC Proceedings Volumes, 2006
Abstract In this paper, a fault tolerant control strategy based on the linear quadratic problem is proposed. The strategy progressively accommodates the feedback control law according to the iteration solutions of the Newton-Raphson algorithm. It significantly reduces the loss of system performance, which results from the time delay that is necessary
Marcel Staroswiecki, Hao Yang, Bin Jiang
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Actuator fault diagnosis and control of a quadrotor

2014 12th IEEE International Conference on Industrial Informatics (INDIN), 2014
This paper addresses the problem of actuator fault diagnosis and control of a realistic nonlinear six degree-of-freedom quadrotor helicopter model, based on interacting multiple model (IMM) filter and a switching multi-model predictive controller (MMPC).
Adilson Souza Candido, Roberto Kawakami Harrop Galvão, Takashi Yoneyama   +2 more
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Fault-tolerant control for over-actuated systems with actuator fault and input saturation

2018 Chinese Automation Congress (CAC), 2018
This paper proposes a novel fault-tolerant tracking control strategy for over-actuated systems subject to actuator fault, control input saturation and external disturbance. The proposed method integrates the effect of actuator saturation and the actuator fault into a generalized disturbance.
Zhijie Shao, Liliang Lil, Rui Niu, Meng Zhou, Zhenhua Wang   +4 more
openaire   +1 more source

Timely actuator fault diagnosis and accommodation

10th International Multi-Conferences on Systems, Signals & Devices 2013 (SSD13), 2013
This paper deals with the development of a timely integrated scheme of actuator fault diagnosis and accommodation. A predefined time diagnosis is elaborated based on a Finite Time Unknown Input Observer (FTUIO). After a finite time, a precise fault estimation is provided by the FTUIO to the accommodation module based on the Pseudo-Inverse Method PIM. A
Rim Hamdaoui, Mohamed Naceur Abdelkrim
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Safe Flocking in Spite of Actuator Faults

2010
The safe flocking problem requires a collection of N mobile agents to (a) converge to and maintain an equi-spaced lattice formation, (b) arrive at a destination, and (c) always maintain a minimum safe separation. Safe flocking in Euclidean spaces is a well-studied and difficult coordination problem.
Taylor T. Johnson, Sayan Mitra 0002
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Adaptive fault-tolerant tracking control against actuator faults

2006 American Control Conference, 2006
This paper deals with the problem of flight tracking control against actuator faults based on linear matrix inequality (LMI) method and adaptive method. The type of faults under consideration is loss of actuator effectiveness. An adaptive fault-tolerant flight controller design method is developed based on the on-line estimation of an eventual fault ...
Dan Ye 0001, Guang-Hong Yang
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Actuator fault compensation for a helicopter model

Proceedings of 2003 IEEE Conference on Control Applications, 2003. CCA 2003., 2004
A fault-tolerant system is the one that can continue its operation without significant impact on performance in the presence of hardware and/or software errors. In this paper, the design of a fault-tolerant flight controller to control UH-60 helicopter is investigated.
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