Relevant bibliographies by topics / Simulation des fautes

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Academic literature on the topic 'Simulation des fautes'

Author: Grafiati
Published: 23 September 2022
Last updated: 27 January 2023

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Journal articles on the topic "Simulation des fautes"

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Seo, Dong Hyun, Wae Gyeong Shin, and Jong Sang No. "A Study on Fault Detection Algorithm for Motor Control Unit of Electric Vehicle." Applied Mechanics and Materials 431 (October 2013): 226–30. http://dx.doi.org/10.4028/www.scientific.net/amm.431.226.

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Algorithms for motor control unit in electric vehicles are being actively developed with consideration given to safety and reliability these days. Faults during driving are a critical problem that is directly linked to the safety of drivers, and studies on fault detection of control units in various situations are needed. This study investigated the faults of control units in a signal level interface with a dynamic model of drive motor and the real-time interconnection of motor control unit and HILS (hardware-in-the-loop simulation). It was found through real-time simulation that simulating the fault conditions with the sensors of motor control unit could reveal different characteristics of motor control unit. Furthermore, vehicle driving simulations with electric motor control were performed. The results of this study are expected to help the development of electric motor simulations and the evaluation of MCU and control algorithms.
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Gatta, Fabio, Alberto Geri, Stefano Lauria, and Marco Maccioni. "An Equivalent Circuit for the Evaluation of Cross-Country Fault Currents in Medium Voltage (MV) Distribution Networks." Energies 11, no. 8 (July 24, 2018): 1929. http://dx.doi.org/10.3390/en11081929.

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A Cross-Country Fault (CCF) is the simultaneous occurrence of a couple of Line-to-Ground Faults (LGFs), affecting different phases of same feeder or of two distinct ones, at different fault locations. CCFs are not uncommon in medium voltage (MV) public distribution networks operated with ungrounded or high-impedance neutral: despite the relatively small value of LGF current that is typical of such networks, CCF currents can be comparable to those that are found in Phase-To-Phase Faults, if the affected feeder(s) consists of cables. This occurs because the faulted cables’ sheaths/screens provide a continuous, relatively low-impedance metallic return path to the fault currents. An accurate evaluation is in order, since the resulting current magnitudes can overheat sheaths/screens, endangering cable joints and other plastic sheaths. Such evaluation, however, requires the modeling of the whole MV network in the phase domain, simulating cable screens and their connections to the primary and secondary substation earth electrodes by suitable computer programs, such as ATP (which is the acronym for alternative transient program) or EMTP (the acronym for electromagnetic transient program), with substantial input data being involved. This paper presents a simplified yet accurate circuit model of the faulted MV network, taking into account the CCF currents’ return path (cable sheaths/screens, ground conductors, and earthing resistances of secondary substations). The proposed CCF model can be implemented in a general-purpose simulation program, and it yields accurate fault currents estimates: for a 20 kV network case study, the comparison with accurate ATP simulations evidences mismatches mostly smaller than 2%, and never exceeding 5%.
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Mao, Xiaoming, and Junxian Chen. "A Fast Method to Compute the Dynamic Response of Induction Motor Loads Considering the Negative-Sequence Components in Stability Studies." Energies 12, no. 9 (May 12, 2019): 1802. http://dx.doi.org/10.3390/en12091802.

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This paper deals with the modeling and simulation of induction motor loads in power system stability studies considering the influence of the negative-sequence components. A practical method for computing the dynamic behavior of an induction motor under asymmetric faults is proposed and implemented in MATLAB. The accuracy of the proposed method is verified through classical electromagnetic transient simulations using the PSCAD/EMTDC software package. Compared with the existing traditional transient stability simulations, the method increases a little computational burden yet achieves much better simulation accuracy under asymmetric faults.
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Ghafouri, Saeed, Mohammad Ali Hajiahmadi, Mehdi Firouzi, Gevork B. Gharehpetian, Saleh Mobayen, and Paweł Skruch. "Improving Transient Stability of a Synchronous Generator Using UIPC with a Unified Control Scheme." Energies 15, no. 16 (August 22, 2022): 6072. http://dx.doi.org/10.3390/en15166072.

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In this paper, the Unified Interphase Power Controller (UIPC) is utilized to protect the synchronous generator in case of faults occurring in the transmission system. The UIPC not only maintains the generator’s stability by keeping its load angle within safe operational limits but also prevents high-amplitude currents from flowing through the stator windings. This also allows for more loading on the generator without compromising the system’s stability. Moreover, utilization of the UIPC improves the LVRT capability of the generator by injecting reactive power at the faulted location. Additionally, a novel unified control scheme is proposed for the UIPC that enhances its performance by omitting the necessity of fault detection algorithms. To evaluate the performance of the proposed controller and the efficacy of the UIPC in protecting the synchronous generator under the faults, simulations have been conducted in a MATLAB/Simulink environment. A test grid was developed comprising a synchronous generator, transmission line model, UIPC, and an infinite grid representing the Point of Common Coupling (PCC), and three fault scenarios have been implemented in the transmission system. The comparative analysis of simulation results demonstrates the capability and efficacy of UIPC in isolating the synchronous generator from the faulted location, which in turn not only enhances transient stability of the generator, but also protects generator windings from detrimental faults currents. Moreover, according to the results, UIPC also contributes to recovering the voltage dip of the fault location via injecting reactive power.
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Heimar Andersen, Kamilla, Sverre B. Holøs, Aileen Yang, Kari Thunshelle, Øystein Fjellheim, and Rasmus Lund Jensen. "Impact of Typical Faults Occurring in Demand-controlled Ventilation on Energy and Indoor Environment in a Nordic Climate." E3S Web of Conferences 172 (2020): 09006. http://dx.doi.org/10.1051/e3sconf/202017209006.

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This study evaluates typical faults occurring in demand-controlled ventilation (DCV) system and the impact on three output results: energy use, thermal comfort, and indoor air quality. The methodologies used in this study were qualitative interviews of selected Norwegian Heating Ventilation Air Condition (HVAC) system experts and numerical modeling using the building performance simulation tool IDA ICE. The faults deduced from the qualitative interviews were modeled as the fault's different consequences to account for a large variety of faults. With a Norwegian school classroom as a case study, a local approach applying a one-at-a-time (OAT) simulation was used to perform an analysis of the extreme fault conditions that can occur. The results from the fault modeling demonstrated that greater attention is needed to avoid faults in the HVAC systems due to its impact on the indoor environment quality and energy efficiency of buildings.
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Mitsuhashi, Yuta, Gaku Hashimoto, Hiroshi Okuda, and Fujio Uchiyama. "Stochastic Analysis of the Kamishiro Earthquake Considering a Dynamic Fault Rupture." Journal of Earthquake and Tsunami 12, no. 04 (October 2018): 1841009. http://dx.doi.org/10.1142/s1793431118410099.

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In recent years, a new demand has appeared for evaluations of earthquake fault displacements, to address the need to evaluate the soundness of underground structures. Fault displacements are caused by the rupturing of earthquake source faults, and are investigated through the use of methods such as the finite difference method and the finite element method (FEM). We conducted dynamic rupture simulations on the Kamishiro Fault Earthquake using a nonlinear FEM, focused on time history of fault displacement and response displacement, and demonstrated an ability to simulate observed values to a certain extent. During these simulations, we created models of homogeneous faults using the ground as the solid element and fault planes as joint elements. Although we were able to roughly simulate displacement time histories, obstacles to achieving more precise simulations still exist. In this research, we conducted investigations to model strong motion generation areas (SMGA). We conducted a searching analysis using Bayesian optimization with SMGA distribution within faults as parameters, and estimated the optimal parameters for simulating time histories of displacement. In addition, we compared our results with estimations of SMGA derived from different methods, and demonstrated that our distributions qualitatively matched. In addition, we evaluated the stochasticity of response displacement considering the randomness of the parameter of the fault. To conduct the simulation, we introduced joint elements from Goodman et al. that had been expanded to the FEM code FrontISTR, which makes it possible to analyze large-scale models.
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Rosen, C., L. Rieger, U. Jeppsson, and P. A. Vanrolleghem. "Adding realism to simulated sensors and actuators." Water Science and Technology 57, no. 3 (February 1, 2008): 337–44. http://dx.doi.org/10.2166/wst.2008.130.

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In this paper, we propose a statistical theoretical framework for incorporation of sensor and actuator faults in dynamic simulations of wastewater treatment operation. Sensor and actuator faults and failures are often neglected in simulations for control strategy development and testing, although it is well known that they represent a significant obstacle for realising control at full-scale facilities. The framework for incorporating faults and failures is based on Markov chains and displays the appealing property of easy transition of sensor and actuator history into a model for fault generation. The paper briefly describes Markov theory and how this is used together with models for sensor and actuator dynamics to achieve a realistic simulation of measurements and actuators.
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Tasic, Bratislav, Jos J. Dohmen, E. Jan W. ter Maten, Theo G.J. Beelen, Wil H.A. Schilders, Alex de Vries, and Maikel van Beurden. "Robust DC and efficient time-domain fast fault simulation." COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering 33, no. 4 (July 1, 2014): 1161–74. http://dx.doi.org/10.1108/compel-12-2012-0364.

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Purpose – Imperfections in manufacturing processes may cause unwanted connections (faults) that are added to the nominal, “golden”, design of an electronic circuit. By fault simulation one simulates all situations. Normally this leads to a large list of simulations in which for each defect a steady-state (direct current (DC)) solution is determined followed by a transient simulation. The purpose of this paper is to improve the robustness and the efficiency of these simulations. Design/methodology/approach – Determining the DC solution can be very hard. For this the authors present an adaptive time-domain source stepping procedure that can deal with controlled sources. The method can easily be combined with existing pseudo-transient procedures. The method is robust and efficient. In the subsequent transient simulation the solution of a fault is compared to a golden, fault-free, solution. A strategy is developed to efficiently simulate the faulty solutions until their moment of detection. Findings – The paper fully exploits the hierarchical structure of the circuit in the simulation process to bypass parts of the circuit that appear to be unaffected by the fault. Accurate prediction and efficient solution procedures lead to fast fault simulation. Originality/value – The fast fault simulation helps to store a database with detectable deviations for each fault. If such a detectable output “matches” a result of a product that has been returned because of malfunctioning it helps to identify the subcircuit that may contain the real fault. One aims to detect as much as possible candidate faults. Because of the many options the simulations must be very efficient.
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Song, H., S. L. Hu, and W. Z. Chen. "Simulink-based simulation platform design and faults impact analysis of attitude control systems." Aeronautical Journal 126, no. 1297 (October 4, 2021): 475–99. http://dx.doi.org/10.1017/aer.2021.79.

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AbstractThe satellite attitude control system (SACS) is a complicated system. In order to reflect the relationship among different components in SACS and analyse the impact of component faults on system performance, a complete simulation platform of the SACS based on Simulink is built in this paper. With the embedding of the specific reaction flywheel, gyroscope and earth sensor model, and the design of the controller based on the quaternion feedback, the simulation platform can not only simulate the real SACS at the component level, but it can also realise the injection of component faults for analysing the system performance. Simulations are conducted to verify the performance of the simulation platform. Simulation results show that this simulation platform has the ability to accurately reflect the control performance of the SACS, and the output accuracy of the component model is high. The research results reveal that this simulation platform can provide model support for verifying the algorithm of fault diagnosis, prediction and tolerant control of the SACS. This simulation platform is easy to use and can be expanded and improved.
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KOOCHAKI, A., S. M. KOUHSARI, and G. GHANAVATI. "Transformer Internal Faults Simulation." Advances in Electrical and Computer Engineering 8, no. 2 (2008): 23–28. http://dx.doi.org/10.4316/aece.2008.02004.

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Dissertations / Theses on the topic "Simulation des fautes"

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Alexandrescu, Marian-Dan. "Outils pour la simulation des fautes transitoires." Grenoble INPG, 2007. http://www.theses.fr/2007INPG0084.

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Les événements singuliers proviennent de l'interaction d'une particule énergétique avec un circuit microélectronique. Ces perturbations peuvent modifier d'une manière imprévue le fonctionnement du circuit et introduire des fautes. La sensibilité des circuits augmentant à chaque nouvelle génération technologique, il devient nécessaire de disposer d'outils spécifiques pour la conception des circuits durcis face aux événements singuliers. Les travaux de cette thèse visent à étendre la compréhension de ces phénomènes et à proposer des outils CAO pour faciliter l'analyse de ces problèmes dans les circuits actuels. Nous avons développé des méthodologies pour l'analyse du comportement des cellules de la bibliothèque standard et des outils pour la simulation accélérée des fautes et pour l'évaluation probabiliste des effets singuliers. Les résultats fournis par ces outils vont permettre aux concepteurs d'évaluer et de choisir des méthodes adéquates pour améliorer la fiabilité des circuits intégrés
Single Events (SE) are produced by the interaction of charged particles with the transistors of a microelectronic circuit. These perturbations may alter the functioning of the circuit and cause logic faults and errors. As the sensitivity of circuits increases for each technological evolution, specific tools are needed for the design of hardened circuits. This thesis aims at furthering the comprehension of the phenomena and proposes EDA tools to help the analysis of these problems in today's ICs. We have developed methodologies for the characterization of the cells from the standard library and tools for accelerated fault simulation and probabilistic analysis of single events. The results provided by these tools allow the designer to correctly evaluate the sensitivity of his design and select the most adequate methods to improve the reliability of ICs
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Boué, Jérôme. "Test de la tolérance aux fautes par injection de fautes dans des modèles de simulation VHDL." Toulouse, INPT, 1997. http://www.theses.fr/1997INPT104H.

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Les travaux presentes dans ce memoire concernent la verification experimentale de la tolerance aux fautes au plus tot dans le processus de developpement de systemes informatiques critiques. Ce memoire expose tout d'abord une synthese des travaux menes sur la validation de la tolerance aux fautes, et porte plus particulierement son attention sur l'injection de fautes en tant que technique privilegiee de test de la tolerance aux fautes. On justifie ainsi le choix de l'approche de simulation pour la verification experimentale de la tolerance aux fautes. Ce memoire propose ensuite une caracterisation des attributs de l'injection de fautes dans le contexte de l'elimination des fautes de conception dans les mecanismes de tolerance aux fautes. Le profil de test (fautes et activites) est different du profil operationnel et vise a favoriser la sensibilisation des differents mecanismes. Les releves d'experiences sont des predicats sur les sorties du systeme, sur les mecanismes de tolerance aux fautes et sur leurs etats internes. Ces releves visent d'abord a decider de l'issue du test, ensuite a fournir des donnees utiles au diagnostic. La technique de test proposee est construite d'une part a partir d'une modelisation fonctionnelle globale de la tolerance aux fautes et de ses interactions, d'autre part a partir d'une modelisation comportementale de chaque mecanisme individuel de tolerance aux fautes. L'approche proposee privilegie le test statistique pour sa capacite a depasser les limites des criteres de test usuels. Ces travaux s'appuient d'abord sur le developpement d'un outil d'injection de fautes dans des modeles de simulation vhdl : mefisto. Ils s'appuient ensuite sur une plate-forme experimentale simulant un systeme tolerant aux fautes. Elle est developpee en vhdl et est utilisee pour illustrer notre methode de test statistique des mecanismes de tolerance aux fautes.
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Jenn, Éric. "Sur la validation des systèmes tolérant les fautes : injection de fautes dans des modèles de simulation VHDL." Toulouse, INPT, 1994. http://www.theses.fr/1994INPT069H.

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Les travaux theoriques et pratiques exposes dans ce memoire introduisent et justifient le choix du langage de modelisation vhdl dans l'objectif de l'integration de la validation par injection de fautes au developpement des systemes surs de fonctionnement. Ce memoire presente tout d'abord une synthese critique des travaux anterieurs portant sur l'injection de fautes en insistant plus particulierement sur les aspects lies aux concepts de modelisation et d'abstraction. On montre ensuite l'interet de la simulation tant du point de vue de la mise en uvre de l'injection de fautes que de l'integration de la validation des proprietes de surete de fonctionnement au processus de conception. Apres avoir justifie le choix de la simulation a evenements discrets, on propose une formalisation de certaines techniques d'injection selon ce principe ; puis, sachant que le choix d'une technique depend non seulement de sa capacite theorique a resoudre un probleme mais aussi et surtout de sa capacite a etre mise en uvre, on traite le probleme de l'optimisation d'une simulation dans le contexte de l'injection de fautes et on decrit un ensemble de methodes de simulation multiniveau (statiques et dynamiques) destinees a favoriser la realisation de cet objectif. Dans ce contexte, on montre que le langage vhdl offre un ensemble de proprietes (puissance d'expression, normalite, modularite, etc. ) favorables a son utilisation pour la validation. Apres avoir introduit les principales caracteristiques de ce langage, differentes solutions de mise en uvre des techniques d'injection sont elaborees (injection directe et indirecte ; usage des fonctions de resolution, des configurations, etc. ). On souligne cependant certaines limitations inherentes au langage et on presente des extensions qui permettent de les contourner. Ces techniques d'injection de fautes sont concretisees par leur integration dans un outil, mefisto, dont on decrit la structure, les fonctionnalites et le mode de fonctionnement. Enfin, cet outil est applique a un modele de processeur afin de comparer deux techniques d'injection particulieres parmi celles proposees: injection directe sur les signaux et injection directe sur les variables. Ce contexte experimental est employe pour illustrer les methodes de simulation multiniveau, pour proceder a la mise en uvre des techniques d'injection en vhdl que l'on a identifiees et pour valider les principes qui sous-tendent l'outil mefisto
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Caunègre, Pascal. "Contribution au test des circuits mixtes : modélisation et simulation de fautes." Toulouse, INSA, 1996. http://www.theses.fr/1996ISAT0018.

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Les recherches presentes dans cette these contribuent au test des circuits analogiques ou mixtes par l'etude des modeles de fautes et par la realisation d'outils de simulation de fautes. Les defauts physiques survenant lors de la fabrication des circuits sont inventories. Differents modeles et techniques d'injection de fautes permettant de simuler ces defauts dans les circuits analogiques sont envisages et evalues a l'aide de circuits a base de transistors mos ou bipolaires. L'effet ces defauts sur une cellule logique est analyse et l'adequation de modeles de fautes logiques existants est etudiee. De nouveaux modeles sont introduits et la construction d'un catalogue de modeles de fautes est proposee. Les court-circuits intervenant entre les signaux issus de deux cellules logiques sont traites par une methode faisant intervenir un simulateur mixte et des modeles comportementaux de cellule logiques. Cette etude est egalement etendue aux court-circuits dans les circuits mixtes. Des modeles comportementaux de systemes de test analogique sont realises et permettent de concevoir un banc de test virtuel aidant a l'ecriture des vecteurs de test. Des outils de simulation de fautes pour circuits analogiques ou mixtes sont developpes permettant de mesurer le taux de couverture de fautes du test et de selectionner les vecteurs de test. L'analyse de la sensibilite des mesures aux parametres du circuit est aussi mise a profit pour calculer le taux de couverture des fautes parametriques pour des circuits lineaires
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Kaâniche, Mohamed. "Evaluation de la sûreté de fonctionnement informatique. Fautes physiques, fautes de conception, malveillances." Habilitation à diriger des recherches, Institut National Polytechnique de Toulouse - INPT, 1999. http://tel.archives-ouvertes.fr/tel-00142168.

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Les travaux résumés dans ce mémoire ont pour cadre la sûreté de fonctionnement des systèmes informatiques. Ils couvrent plusieurs aspects complémentaires, à la fois théoriques et expérimentaux, que nous avons groupés en quatre thèmes. Le premier thème traite de la définition de méthodes permettant de faciliter la construction et la validation de modèles complexes pour l'analyse et l'évaluation de la sûreté de fonctionnement. Deux approches sont considérées : les réseaux de Petri stochastiques généralisés et la simulation comportementale en présence de fautes. Le deuxième thème traite de la modélisation de la croissance de fiabilité pour évaluer l'évolution de la fiabilité et de la disponibilité des systèmes en tenant compte de l'élimination progressive des fautes de conception. Ces travaux sont complétés par la définition d'une méthode permettant de faciliter la mise en ¿uvre d'une étude de fiabilité de logiciel dans un contexte industriel. Le troisième thème concerne la définition et l'expérimentation d'une approche pour l'évaluation quantitative de la sécurité-confidentialité. Cette approche permet aux administrateurs des systèmes de suivre l'évolution de la sécurité opérationnelle quand des modifications, susceptibles d'introduire de nouvelles vulnérabilités, surviennent dans la configuration opérationnelle, les applications, le comportement des utilisateurs, etc. Enfin, le quatrième thème porte d'une part, sur l'élaboration d'un modèle de développement destiné à la production de systèmes sûrs de fonctionnement, et d'autre part, sur la définition de critères d'évaluation visant à obtenir une confiance justifiée dans l'aptitude des systèmes à satisfaire leurs exigences de sûreté de fonctionnement, en opération et jusqu'au retrait du service.
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Fritz, Gilles. "Simulation de fautes pour l'évaluation du test en ligne de systèmes RFID." Phd thesis, Université de Grenoble, 2012. http://tel.archives-ouvertes.fr/tel-00861871.

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Les systèmes RFID - pour RadioFrequency Identification - sont capables d'identifier des objets ou des personnes sans contact ni vision direct. Ainsi, leur utilisation grandit de manière exponentielle dans différents secteurs : nucléaire, aviation, ferroviaire, médical, traçabilité, contrôle d'accès... Mais ce sont surtout des systèmes fortement hétérogènes, composés de matériel analogique ou digital, et de systèmes informatique : le tag, attaché à l'objet à identifier, contenant l'identifiant de ce dernier ; le lecteur, appareil capable de venir lire les informations contenus dans les tags ; et le système informatique gérant l'ensemble des données générées par le système. Ces systèmes sont de plus en plus utilisés dans des domaines critiques ou dans des environnements difficiles, alors qu'ils sont basés uniquement sur des équipements bas coût et peu performant - les tags - ne permettant alors pas de garantir des communications robustes. Tous ces points font que le test en ligne des systèmes RFID est une tâche complexe.Cette thèse s'intéresse donc à la sûreté de fonctionnement des systèmes RFID : comment être certains que le système fonctionne comme il faut au moment où on en à besoin ? En premier, les défaillances et leurs causes ont été étudiées à l'aide d'une méthode classique : AMDE - Analyse des modes de défaillances et de leurs effets. Cette étude a permis d'identifier les points faibles des systèmes RFID. Après cela et grâce à cette analyse, il nous a été possible de définir et d'implémenter un simulateur de systèmes RFID appelé SERFID, pour Simulation et Evaluation des systèmes RFID. Ce simulateur est capable de simuler différents systèmes RFID multi-équipements (HF ou UHF, normes actuellement implémentées : ISO15693 et EPC Classe 1 Génération 2), du tag au lecteur, en passant par le canal de communication permettant aux tags et aux lecteurs de communiquer. SERFID permet aussi de connecter les lecteurs simulés à des middlewares existants ou nouveau afin des les évaluer. Pour permettre l'évaluation de la sûreté de fonctionnement des systèmes RFID, SERFID permet l'injection de fautes dynamiquement au sein des tags, lecteurs ou du canal de communication permettant de simuler différentes défaillances pouvant apparaître : diminution de la qualité de la communication ou de l'alimentation du tag, erreurs au sein de la mémoire du tag, bruit... SERFID a été notamment utilisé pour simuler et observer le comportement de systèmes RFID HF et UHF face à du bruit et des perturbations dans le canal de communication entre le tag et le lecteur. Finalement, cette thèse propose une nouvelle méthode pour détecter les tags fautifs ou vieillissants dans les applications de logistiques. Cette méthode, non intrusive et en ligne, est basée sur l'observation des performances du système au cours de son fonctionnement : le logiciel de gestion analyse les résultats des différentes identifications. A partir du taux d'erreur de lecture par tag, et en le comparant aux taux de lecture par tag précédemment observés, cette méthode est capable de déterminer quel groupe de tags est fautif ou non. Cette méthode a été évaluée par expérimentation et par simulation grâce à SERFID. Cette évaluation a permis de mettre en évidence les points forts et les faiblesses de la méthode.
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Capocchi, Laurent. "Simulation concurrente de fautes comportementales pour des systèmes à événements discrets : Application aux circuits digitaux." Phd thesis, Université Pascal Paoli, 2005. http://tel.archives-ouvertes.fr/tel-00165440.

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La Simulation Comparative et Concurrente (SCC) permet d'effectuer plusieurs simulations d'un système en une seule
exécution. Une des premières applications de la SCC a été la Simulation de Fautes Concurrente (SFC) permettant la simu-
lation de fautes au sein des systèmes digitaux décrits au niveau portes logiques. De nos jours, les concepteurs de circuits
évitent de travailler sur ces modèles logiques et préfèrent utiliser des descriptions plus abstraites basées sur des langages
de description de matériel comme le VHDL (Very high speed integrated circuits Hardware Description Language). Ces
langages permettent de modéliser et de simuler le comportement des circuits digitaux mais ils ne sont pas appropriés pour
la simulation concurrente des comportements fautifs ou fautes. Les barrières au développement d'un simulateur concurrent
de fautes comportementales sont le manque de modèles de fautes réalistes et la difficulté à mettre en œuvre les algorithmes
concurrents au sein d'un noyau de simulation.
Pour répondre à cette problématique, nous proposons le formalisme BFS-DEVS (Behavioral Fault Simulator for Discrete
EVent system Specification). Ce formalisme permet de modéliser et de simuler les fautes comportementales sur des systèmes
à événements discrets comme les circuits digitaux décrits en VHDL. Il dérive du formalisme DEVS (Discrete EVent system
Specification) introduit par le professeur B.P. Zeigler à la fin des années 70. Le noyau de simulation BFS-DEVS intègre les
algorithmes concurrents de la SFC et il s'appuie sur une technique de propagation de listes de fautes au sein des modèles du
système. Cette technique améliore la rapidité du processus de simulation car elle permet la détection simultanée de plusieurs
fautes et simplifie également l'observabilité des résultats en fin de simulation.
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Marcon, Didier. "Étude de faisabilité d'un processeur matériel spécialisé pour la simulation concurrente de fautes." Montpellier 2, 1986. http://www.theses.fr/1986MON20174.

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Une architecture multiprocesseurs, une organisation pipeline dans chaque processeur, et enfin la realisation physique avec des circuits specialises constituent les trois solutions qui ont ete utilisees dans cette etude pour obtenir de bonnes performances quant a la duree de la simulation
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Marcon, Didier. "Etude de faisabilité d'un processeur matériel spécialisé pour la simulation concurrente de fautes." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb375994470.

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Federici, Dominique. "Simulation de fautes comportementales de systèmes digitaux décrits à haut niveau d'abstraction en VHDL." Corte, 1999. http://www.theses.fr/1999CORT3039.

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L’étude présentée dans ce mémoire entre dans le cadre de la conception des systèmes digitaux à très haute échelle d’intégration. Le but de notre travail est la définition et le développement d'un simulateur de fautes pour des systèmes digitaux décrits à haut niveau d'abstraction selon un point de vue comportemental. Pour accomplir cette tache, nous avons développé une approche intégrant les quatre étapes suivantes : - étude d'une modélisation adéquate explicitant les concepts de base des descriptions comportementales, en particulier la séparation données/commande. - choix d'un modèle de fautes comportementales. - définition d'un principe de simulation de fautes comportementales : notre méthode consiste à propager des listes de fautes à travers les éléments de base du modèle du système étudié - implémentation de ce principe : ces travaux ont été réalisés à partir des concepts de la théorie des objets offrant ainsi la possibilité d’élaborer un outil évolutif. La validation de notre approche est mise en oeuvre à travers l’étude d'un exemple : le registre 8-bit.
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Books on the topic "Simulation des fautes"

1

Khare, Jitendra B. From Contamination to Defects, Faults and Yield Loss: Simulation and Applications. Boston, MA: Springer US, 1996.

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Khare, Jitendra B. From contamination to defects, faults, and yield loss: Simulation and applications. Boston: Kluwer Academic Publishers, 1996.

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Cunningham, Michael John. Simulation and analysis of faults on an 11kV overhead line power distribution system. [s.l: The Author], 1997.

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Audibert, Marc. Déformation discontinue et rotations de blocs: Méthodes numériques de restauration : application à la Galilée. Rennes: Centre armoricain d'étude structurale des socles, Université de Rennes I, 1991.

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Sammis, Charles G., and Yehuda Ben-Zion. Mechanics, structure and evolution of fault zones. Basel: Birkhauser, 2010.

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Peter, Bird, and United States. National Aeronautics and Space Administration., eds. Neotectonics of Asia: Thin-shell finite-element models with faults. [Washington, DC: National Aeronautics and Space Administration, 1994.

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Ben-Zion, Yehuda, and Charles Sammis. Mechanics, Structure and Evolution of Fault Zones. Springer London, Limited, 2009.

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Book chapters on the topic "Simulation des fautes"

1

Djambazov, Krassimir, and Peter Popov. "Software Design-Faults Simulation." In Safety and Reliability of Software Based Systems, 389–418. London: Springer London, 1997. http://dx.doi.org/10.1007/978-1-4471-0921-1_25.

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Khare, Jitendra B., and Wojciech Maly. "Contamination-Defect-Fault (CDF) Simulation." In From Contamination to Defects, Faults and Yield Loss, 37–46. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4613-1377-9_3.

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Azambuja, José Rodrigo, Fernanda Kastensmidt, and Jürgen Becker. "Simulation Fault Injection Experimental Results." In Hybrid Fault Tolerance Techniques to Detect Transient Faults in Embedded Processors, 63–68. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-06340-9_5.

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Li, Sheng Qi. "Stability Faults Detecting and Quality Attributes Assessing of Network Information." In Advanced Research on Computer Education, Simulation and Modeling, 441–46. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21783-8_72.

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Li, Zhihua, Zhiqun Ye, Chunhua Wu, and Wenxin Xu. "Modeling and Simulation Study of Photovoltaic DC Arc Faults." In Communications in Computer and Information Science, 137–46. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-6364-0_14.

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Addala, Durgesh, P. Teja, and Sobhit Saxena. "Fault simulation algorithm for transistor single stuck short faults." In Intelligent Circuits and Systems, 404–10. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003129103-63.

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Bhuyan, Kaveri, Saibal Chatterjee, Anwesa Yadav, Sarita Bansal, and Sanat Kumar Paul. "Simulation and Analysis of Impulse Faults in Power Transformer." In Lecture Notes in Electrical Engineering, 135–41. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-47200-2_15.

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Jayanthy, S., and M. C. Bhuvaneswari. "Simulation Based Test Generation for Crosstalk Delay Faults in Asynchronous Sequential Circuits." In Test Generation of Crosstalk Delay Faults in VLSI Circuits, 141–50. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-2493-2_9.

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Jayanthy, S., and M. C. Bhuvaneswari. "Simulation of Asynchronous Sequential Circuits Using Fuzzy Delay Model for Crosstalk Delay Faults." In Test Generation of Crosstalk Delay Faults in VLSI Circuits, 125–39. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-2493-2_8.

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Liu, Xialin, Xiaochun Li, and Quan Chen. "Multi-phase flow simulation of CO2 leakage through minor faults." In Advances in Energy Science and Equipment Engineering II, 195–202. Taylor & Francis Group, 6000 Broken Sound Parkway NW, Suite 300, Boca Raton, FL 33487-2742: CRC Press, 2017. http://dx.doi.org/10.1201/9781315116167-40.

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Conference papers on the topic "Simulation des fautes"

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Farber, Jacob A., and Daniel G. Cole. "Using Multiple-Model Adaptive Estimation and System Identification for Fault Detection in Nuclear Power Plants." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-87616.

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One challenge in nuclear power plant operation is the detection and identification of system faults and plant transients. Timely and accurate identification will reduce operational costs and increase plant safety. This paper describes a combined model-based and data-driven approach to identifying faults in nuclear power plants. Faults are detected for a GSES Generic Pressurized Water Reactor simulator using the multiple-model adaptive estimation (MMAE) technique. In this technique, multiple input-output system models are used that represent different operating conditions. The models predict sensor measurements for both normal and faulted operating conditions simultaneously. The predicted measurements are then compared to the sensor measurements to determine the most likely operating condition. The system models are obtained using system identification techniques for a specific set of faulted conditions. This technique uses sensor measurements from the simulation to identify appropriate parameters for the system models. The MMAE technique is then used to detect similar faults using the identified model. This combination of model-based and data-driven techniques can ultimately be used to create robust fault models that take advantage of both the models created during the design and validation process and real plant data.
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Xu, Yifei, Priyesh Srivastava, Xiao Ma, Karan Kaul, and Hao Huang. "A Fast Gridding Method for Capturing Geological Complexity and Uncertainty." In SPE Reservoir Simulation Conference. SPE, 2021. http://dx.doi.org/10.2118/203902-ms.

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Abstract In this paper, we introduce an efficient method to generate reservoir simulation grids and modify the fault juxtaposition on the generated grids. Both processes are based on a mapping method to displace vertices of a grid to desired locations without changing the grid topology. In the gridding process, a grid that can capture stratigraphical complexity is first generated in an unfaulted space. The vertices of the grid are then displaced back to the original faulted space to become a reservoir simulation grid. The resulting reversely mapped grid has a mapping structure that allows fast and easy fault juxtaposition modification. This feature avoids the process of updating the structural framework and regenerating the reservoir properties, which may be time-consuming. To facilitate juxtaposition updates within an assisted history matching workflow, several parameterized fault throw adjustment methods are introduced. Grid examples are given for reservoirs with Y-faults, overturned bed, and complex channel-lobe systems.
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Chambers, K. T., D. R. DeBaun, L. J. Durlofsky, I. J. Taggart, A. Bernath, A. Y. Shen, H. A. Legarre, and D. J. Goggin. "Geologic Modeling, Upscaling and Simulation of Faulted Reservoirs Using Faulted Stratigraphic Grids." In SPE Reservoir Simulation Symposium. Society of Petroleum Engineers, 1999. http://dx.doi.org/10.2118/51889-ms.

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Pierre, Samier, Raguenel Margaux, and Darche Gilles. "Comparison of Various Discretization Schemes for Simulation of Large Field Case Reservoirs Using Unstructured Grids." In SPE Reservoir Simulation Conference. SPE, 2021. http://dx.doi.org/10.2118/203949-ms.

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Abstract Solving the equations governing multiphase flow in geological formations involves the generation of a mesh that faithfully represents the structure of the porous medium. This challenging mesh generation task can be greatly simplified by the use of unstructured (tetrahedral) grids that conform to the complex geometric features present in the subsurface. However, running a million-cell simulation problem using an unstructured grid on a real, faulted field case remains a challenge for two main reasons. First, the workflow typically used to construct and run the simulation problems has been developed for structured grids and needs to be adapted to the unstructured case. Second, the use of unstructured grids that do not satisfy the K-orthogonality property may require advanced numerical schemes that preserve the accuracy of the results and reduce potential grid orientation effects. These two challenges are at the center of the present paper. We describe in detail the steps of our workflow to prepare and run a large-scale unstructured simulation of a real field case with faults. We perform the simulation using four different discretization schemes, including the cell-centered Two-Point and Multi-Point Flux Approximation (respectively, TPFA and MPFA) schemes, the cell- and vertex-centered Vertex Approximate Gradient (VAG) scheme, and the cell- and face-centered hybrid Mimetic Finite Difference (MFD) scheme. We compare the results in terms of accuracy, robustness, and computational cost to determine which scheme offers the best compromise for the test case considered here.
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Khare, J., and W. Maly. "Contamination Diagnosis Using Contamination-Defect-Fault (CDF) Simulation." In ISTFA 1996. ASM International, 1996. http://dx.doi.org/10.31399/asm.cp.istfa1996p0109.

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Abstract This paper describes a simulation-based approach to contamination diagnosis. The methodology is based on the contamination-defect fault (CDF) simulator CODEF. CODEF is able to derive circuit-level faults resulting from contamination deposited on an IC cell during fabrication by simulating the manufacturing process flow. The application of CODEF in contamination diagnosis is illustrated with several examples.
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Aliee, Hananeh, Hamid R. Zarandi, and Alireza Tajary. "CPU-aware, process-level redundancy to tolerate faults in multi-core." In Simulation (HPCS). IEEE, 2011. http://dx.doi.org/10.1109/hpcsim.2011.5999844.

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Roe, Per, Petter Abrahamsen, Frode Georgsen, Anne Randi Syversveen, and Oddvar Lia. "Flexible Simulation of Faults." In SPE Annual Technical Conference and Exhibition. Society of Petroleum Engineers, 2010. http://dx.doi.org/10.2118/134912-ms.

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Goldthorpe, W. H., and Y. S. Chow. "Unconventional Modelling of Faulted Reservoirs: A Case Study." In SPE Reservoir Simulation Symposium. Society of Petroleum Engineers, 1985. http://dx.doi.org/10.2118/13526-ms.

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Bartelmus, Walter, and Radosław Zimroz. "Gearbox Systems Dynamic Modelling for Diagnostic Fault Detection." In ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/detc2003/ptg-48080.

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The paper deals with mathematical modelling and computer simulation of a gearbox driving system with a double stage gearbox. Mathematical modelling and computer simulations are used for supporting diagnostic inference. Vibration is thought of as a signal of gear condition. It is stressed that vibration generated by gears is influenced by many factors. These factors are divided into four groups: design, production technology, operational, condition change. The condition change of a gearbox is given by gear faults that are divided into single faults such as a tooth crack or breakage or distributed faults as pitting, scuffing, and erosion. The faults are modelled in the case of a crack as a change of tooth stiffness in the case of distributed faults they are given multi-parameter functions. Simulated signals undergo signal analysis by spectrum, cepstrum, time-frequency spectrogram. It has been shown by computer simulation that single and distributed faults are identified by cepstrum. For explicit fault identification time-frequency spectrogram has to be additionally used. The computer simulation results are confirmed by analysis of measured vibration signals received from a gearbox wall/housing. The aim of mathematical modelling and computer simulation, besides finding the relationship between gear condition and vibration signal is in the future to give vibration signals for neural network training.
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Bryant, Michael D., and Jihoon Choi. "Model Based Diagnostics for Gearboxes." In ASME/STLE 2011 International Joint Tribology Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ijtc2011-61263.

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A model-based diagnostic to detect and assess faults is applied to gearboxes. Signals measured from a gearbox were compared to corresponding signals from simulations. The gearbox simulation model includes dynamics of input, lay and output shafts, gear bodies, bearings, and kinematics and tribology of gear tooth contacts. These were assembled into a systems model via bond graphs. To make simulations emulate measurements, the model’s parameters were “tuned”. A direct physical correspondence between parameters and real system elements locates faults. Considered was gear tooth cracking. Faults disturb normal flow of power and signal through a machine. Viewing the gearbox as a communications channel, and applying information theory theorems to the perturbed signals permitted assessment of the gearbox’s functional health.
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Reports on the topic "Simulation des fautes"

1

Pitarka, A. Rupture Dynamics Simulations of Shallow Crustal Earthquakes on Reverse Slip Faults. Office of Scientific and Technical Information (OSTI), February 2020. http://dx.doi.org/10.2172/1599564.

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Knio, Omar. Probabilistic Approach to Enable Extreme-Scale Simulations under Uncertainty and System Faults. Final Technical Report. Office of Scientific and Technical Information (OSTI), May 2017. http://dx.doi.org/10.2172/1355656.

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Milind Deo, Chung-Kan Huang, and Huabing Wang. Parallel, Multigrid Finite Element Simulator for Fractured/Faulted and Other Complex Reservoirs based on Common Component Architecture (CCA). Office of Scientific and Technical Information (OSTI), August 2008. http://dx.doi.org/10.2172/949977.

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Kenyon, Richard W., and Barry A. Mather. Simulating Distributed Energy Resource Responses to Transmission System-Level Faults Considering IEEE 1547 Performance Categories on Three Major WECC Transmission Paths. Office of Scientific and Technical Information (OSTI), February 2020. http://dx.doi.org/10.2172/1603268.

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Event-Triggered Adaptive Robust Control for Lateral Stability of Steer-by-Wire Vehicles with Abrupt Nonlinear Faults. SAE International, July 2022. http://dx.doi.org/10.4271/2022-01-5056.

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Because autonomous vehicles (AVs) equipped with active front steering have the features of time varying, uncertainties, high rate of fault, and high burden on the in-vehicle networks, this article studies the adaptive robust control problem for improving lateral stability in steer-by-wire (SBW) vehicles in the presence of abrupt nonlinear faults. First, an upper-level robust H∞ controller is designed to obtain the desired front-wheel steering angle for driving both the yaw rate and the sideslip angle to reach their correct values. Takagi-Sugeno (T-S) fuzzy modeling method, which has shown the extraordinary ability in coping with the issue of nonlinear, is applied to deal with the challenge of the changing longitudinal velocity. The output of the upper controller can be calculated by a parallel distributed compensation (PDC) scheme. Then an event-triggered adaptive fault-tolerant lower controller (ET-AFTC) is proposed to drive the whole SBW system driving the desired steering angle offered by the upper controller with fewer communication resources and strong robustness. By employing a backstepping technique, the tracking performance is improved. The dynamic surface control (DSC) approach is used to avoid the problem of repeated differentiations, and Nussbaum function is adopted to overcome the difficulty of unknown nonlinear control gain. Both the stability of the upper and lower controllers can be guaranteed by Lyapunov functions. Finally, the simulations of Matlab/Simulink are given to show that the proposed control strategy is effectively able to deal with the abrupt nonlinear fault via less communication resources and perform better in ensuring the yaw stability of the vehicle.
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