Documents disponibles écrits par cet auteur

Feedback linearization tracking control of vehicle longitudinal acceleration under low-speed conditions / Bin Yang in Transactions of the ASME . Journal of dynamic systems, measurement, and control, Vol. 130 N°5 (Septembre 2008) 

Public ISBD [article]  in Transactions of the ASME . Journal of dynamic systems, measurement, and control > Vol. 130 N°5 (Septembre 2008) . - 12 p. Titre : Feedback linearization tracking control of vehicle longitudinal acceleration under low-speed conditions Type de document : texte imprimé Auteurs : Bin Yang, Auteur ; Li Keqiang, Auteur ; Feng Nenglian, Auteur Année de publication : 2008 Article en page(s) : 12 p. Note générale : dynamic systems Langues : Anglais (eng) Mots-clés : control  equipment;  actuators;  vehicles;  feedback;  design;  engines Résumé : This research addresses the modeling, design, and implementation of a longitudinal acceleration tracking control (LATC) system for a test vehicle at low speeds. An electronic throttle actuator for LATC system application is introduced first, which can be used to perform the switching of three functions arbitrarily: automatic LATC, manual drive-by-wire, and pure manual operation. Then, a nonlinear dynamics model for the test vehicle is proposed by using a state-space equation, and several major nonlinear components including the engine, torque converter, transmission, and electronic throttle actuator are considered simultaneously in this model. Furthermore, focusing on the electronic throttle actuator, the strong nonlinear factors induced by the Coulomb friction and torsion of the return spring are analyzed. In view of the nonlinearity of the proposed model, the concept of feedback linearization is employed to convert the nonlinear system into a linear canonical form, and the analysis of the stability caused by the model’s uncertainty is also discussed. Finally, an acceleration feedback linearization controller and a Kalman filter are introduced. They adopt the linear canonical form, which represents a simpler structure. The performance in tracking desired acceleration at low speeds is confirmed by both computer simulations and experiments. En ligne : http://dynamicsystems.asmedigitalcollection.asme.org/issue.aspx?journalid=117&is [...] [article] Feedback linearization tracking control of vehicle longitudinal acceleration under low-speed conditions [texte imprimé] / Bin Yang, Auteur ; Li Keqiang, Auteur ; Feng Nenglian, Auteur . - 2008 . - 12 p. dynamic systems Langues : Anglais (eng) in Transactions of the ASME . Journal of dynamic systems, measurement, and control > Vol. 130 N°5 (Septembre 2008) . - 12 p. Mots-clés : control  equipment;  actuators;  vehicles;  feedback;  design;  engines Résumé : This research addresses the modeling, design, and implementation of a longitudinal acceleration tracking control (LATC) system for a test vehicle at low speeds. An electronic throttle actuator for LATC system application is introduced first, which can be used to perform the switching of three functions arbitrarily: automatic LATC, manual drive-by-wire, and pure manual operation. Then, a nonlinear dynamics model for the test vehicle is proposed by using a state-space equation, and several major nonlinear components including the engine, torque converter, transmission, and electronic throttle actuator are considered simultaneously in this model. Furthermore, focusing on the electronic throttle actuator, the strong nonlinear factors induced by the Coulomb friction and torsion of the return spring are analyzed. In view of the nonlinearity of the proposed model, the concept of feedback linearization is employed to convert the nonlinear system into a linear canonical form, and the analysis of the stability caused by the model’s uncertainty is also discussed. Finally, an acceleration feedback linearization controller and a Kalman filter are introduced. They adopt the linear canonical form, which represents a simpler structure. The performance in tracking desired acceleration at low speeds is confirmed by both computer simulations and experiments. En ligne : http://dynamicsystems.asmedigitalcollection.asme.org/issue.aspx?journalid=117&is [...]

Modeling of a semi-hermetic CO2 reciprocating compressor including lubrication submodels for piston rings and bearings / Bin Yang in International journal of refrigeration, Vol. 36 N° 7 (Novembre 2013) 

Public ISBD [article]  in International journal of refrigeration > Vol. 36 N° 7 (Novembre 2013) . - pp. 1925–1937 Titre : Modeling of a semi-hermetic CO2 reciprocating compressor including lubrication submodels for piston rings and bearings Titre original : Modélisation d’un compresseur à piston semi-hermétique au CO2, y compris des sous-modèles pour la lubrification des segments de piston et des paliers Type de document : texte imprimé Auteurs : Bin Yang, Auteur ; Craig R. Bradshaw, Auteur ; Eckhard A. Groll, Auteur Année de publication : 2014 Article en page(s) : pp. 1925–1937 Note générale : Refrigeration Langues : Anglais (eng) Mots-clés : Reciprocating  compressor;  Model;  CO2;  Optimization;  Friction Résumé : A comprehensive model for a semi-hermetic CO2 reciprocating compressor is presented. This comprehensive model is composed of three main sub-models simulating the geometry and kinematics, the compression process, and frictional power loss. Valve and leakage sub-models are included in the compression process model. The frictional power loss model includes the friction at the bearings and between the piston ring and cylinder wall. The predicted results of the comprehensive model are validated using external compressor performance measurements of compressor input power and mass flow rate. The mass flow rate and compressor input power are predicted to within 4.03% and 6.43% mean absolute error, respectively, compared to the experimental datum. Additionally, a parametric study is presented which investigates compressor performance as a function of the stroke-to-bore ratio. En ligne : http://www.sciencedirect.com/science/article/pii/S0140700712002770 [article] Modeling of a semi-hermetic CO2 reciprocating compressor including lubrication submodels for piston rings and bearings = Modélisation d’un compresseur à piston semi-hermétique au CO2, y compris des sous-modèles pour la lubrification des segments de piston et des paliers [texte imprimé] / Bin Yang, Auteur ; Craig R. Bradshaw, Auteur ; Eckhard A. Groll, Auteur . - 2014 . - pp. 1925–1937. Refrigeration Langues : Anglais (eng) in International journal of refrigeration > Vol. 36 N° 7 (Novembre 2013) . - pp. 1925–1937 Mots-clés : Reciprocating  compressor;  Model;  CO2;  Optimization;  Friction Résumé : A comprehensive model for a semi-hermetic CO2 reciprocating compressor is presented. This comprehensive model is composed of three main sub-models simulating the geometry and kinematics, the compression process, and frictional power loss. Valve and leakage sub-models are included in the compression process model. The frictional power loss model includes the friction at the bearings and between the piston ring and cylinder wall. The predicted results of the comprehensive model are validated using external compressor performance measurements of compressor input power and mass flow rate. The mass flow rate and compressor input power are predicted to within 4.03% and 6.43% mean absolute error, respectively, compared to the experimental datum. Additionally, a parametric study is presented which investigates compressor performance as a function of the stroke-to-bore ratio. En ligne : http://www.sciencedirect.com/science/article/pii/S0140700712002770