Contribution Des Commandes Optimale Structure Variable Et Par Logique Floue La Synth Se Des Suspensions Automobile


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Contribution des commandes optimale, à structure variable, et par logique floue à la synthèse des suspensions automobile


Contribution des commandes optimale, à structure variable, et par logique floue à la synthèse des suspensions automobile

Author: Samir Roukieh

language: fr

Publisher:

Release Date: 1993


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LES TRAVAUX PRESENTES DANS CETTE THESE CONCERNENT LA CONTRIBUTION DE L'APPROCHE SYSTEME DE L'AUTOMATIQUE A LA SYNTHESE DE SYSTEMES DE SUSPENSION AUTOMOBILE PASSIVE, SEMI-ACTIVE ET ACTIVE. LA CONCEPTION DES SUSPENSIONS PASSIVE, ACTIVE OU SEMI-ACTIVE DES VOITURES MODERNES EST CONFRONTEE A DES EXIGENCES CONTRADICTOIRES DE CONFORT D'UNE PART, DE SECURITE ET DE TENUE DE ROUTE D'AUTRE PART. AUSSI, UNE DEMARCHE D'INGENIERIE DE SYSTEMES EST NECESSAIRE (MODELISATION, ANALYSE, IDENTIFICATION, CONTROLE SIMULATION, IMPLEMENTATION, ET ESSAIS): ELLE EST BASEE SUR L'UTILISATION DE MODELES MATHEMATIQUES RAISONNABLEMENT COMPLIQUES ET DE METHODES AVANCEES DE L'AUTOMATIQUE MODERNE (CONTROLE OPTIMAL, CONTROLE A STRUCTURE VARIABLE, CONTROLE FLOU). CEPENDANT, ETANT DONNEES LES LIMITATIONS ACTUELLES DES METHODES DE CONCEPTION DE COMMANDE POUR DES SYSTEMES NON LINEAIRES MULTIVARIABLES, LA CONCEPTION DES SUSPENSIONS EST FAITE SUR LA BASE DE MODELES MULTIVARIABLES LINEAIRES ; LEURS PERFORMANCES SONT TESTEES ENSUITE EN SIMULATION SUR DES MODELES REALISTES, NON LINEAIRES, AVEC RETARD, SATURATION ET HYSTERESIS ET EN ESSAI (SUR BANC 1/4 DE VEHICULE POUR CE QUI NOUS CONCERNE). DANS CETTE THESE, NOUS PRESENTONS, A PARTIR DE L'UTILISATION DE MODELES QUART DE VEHICULE (2DDL), DEMI-VEHICULE (4DDL), VEHICULE COMPLET (7DDL), ET DE PROFIL DE ROUTE (DETERMINISTE ET STOCHASTIQUE) LA CONCEPTION DE SUSPENSIONS ACTIVE ET SEMI-ACTIVE METTANT EN JEU DES CONTROLEURS OPTIMAUX (LINEAIRE QUADRATIQUE LQR/LQG, APPROCHES GLOBALE ET DECENTRALISEE), DES CONTROLEURS A STRUCTURE VARIABLE VSS ET DES CONTROLEURS ROBUSTES FLOUS. L'EFFICACITE DE LA DEMARCHE ET LES PERFORMANCES DES DIFFERENTS CONTROLEURS SONT ANALYSEES, EN SIMULATION EN METTANT EN UVRE UN OUTIL DE SIMULATION NON LINEAIRE (EASY 5/W DE BOEING COMPUTER SERVICES) TANDIS QUE LE PROGICIEL MATLAB EST UTILISE POUR TOUS LES CALCULS CLASSIQUES DE L'AUTOMATIQUE LINEAIRE. DANS UN DEUXIEME TEMPS, UNIQUEMENT LES PERFORMANCES DES SUSPENSIONS PASSIVES ET SEMI-ACTIVES UTILISANT L'ACTIONNEUR BOGE SONT EVALUEES, PAR ESSAIS SUR BANC 1/4 DE VEHICULE. QUELQUES REFLEXIONS SUR LA TECHNOLOGIE ET LES PROBLEMES D'IMPLEMENTATION SUR VEHICULE REEL TERMINENT CETTE THESE

Trois approches de commande pour la suspension automobile


Trois approches de commande pour la suspension automobile

Author: Éric Dayre (Ingénieur).)

language: fr

Publisher:

Release Date: 1993


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Semi-Active Suspension Control Design for Vehicles


Semi-Active Suspension Control Design for Vehicles

Author: Sergio M. Savaresi

language: en

Publisher: Elsevier

Release Date: 2010-08-13


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Semi-Active Suspension Control Design for Vehicles presents a comprehensive discussion of designing control algorithms for semi-active suspensions. It also covers performance analysis and control design. The book evaluates approaches to different control theories, and it includes methods needed for analyzing and evaluating suspension performances, while identifying optimal performance bounds. The structure of the book follows a classical path of control-system design; it discusses the actuator or the variable-damping shock absorber, models and technologies. It also models and discusses the vehicle that is equipped with semi-active dampers, and the control algorithms. The text can be viewed at three different levels: tutorial for novices and students; application-oriented for engineers and practitioners; and methodology-oriented for researchers. The book is divided into two parts. The first part includes chapters 2 to 6, in which fundamentals of modeling and semi-active control design are discussed. The second part includes chapters 6 to 8, which cover research-oriented solutions and case studies. The text is a comprehensive reference book for research engineers working on ground vehicle systems; automotive and design engineers working on suspension systems; control engineers; and graduate students in control theory and ground vehicle systems. - Appropriate as a tutorial for students in automotive systems, an application-oriented reference for engineers, and a control design-oriented text for researchers that introduces semi-active suspension theory and practice - Includes explanations of two innovative semi-active suspension strategies to enhance either comfort or road-holding performance, with complete analyses of both - Also features a case study showing complete implementation of all the presented strategies and summary descriptions of classical control algorithms for controlled dampers