Documents disponibles écrits par cet auteur

A nonlinear clutch pressure observer for automatic transmission / Bingzhao Gao in Transactions of the ASME . Journal of dynamic systems, measurement, and control, Vol. 134 N° 1 (Janvier 2012) 

Public ISBD [article]  in Transactions of the ASME . Journal of dynamic systems, measurement, and control > Vol. 134 N° 1 (Janvier 2012) . - 08 p. Titre : A nonlinear clutch pressure observer for automatic transmission : considering drive-shaft compliance Type de document : texte imprimé Auteurs : Bingzhao Gao, Auteur ; Chen, Hong, Auteur ; Lu Tian, Auteur Année de publication : 2012 Article en page(s) : 08 p. Note générale : Dynamic systems Langues : Anglais (eng) Mots-clés : Clutches  Drives  Engines  Nonlinear  control  systems  Observers  Power  transmission  (mechanical)  Reduced  order  systems  Shafts Index. décimale : 553 Géologie économique. Minérographie. Minéraux. Formation et gisements de minerais Résumé : For a new kind of automatic transmissions adopting clutch-to-clutch shift control technology, a clutch pressure observer is proposed to improve the estimation accuracy during the shift torque phase. The observer is designed in the concept of input-to-state stability. Lookup tables, which are widely used to represent the complex nonlinear characteristics of engine systems, appear in their original form in the designed reduced-order observer, and the torsional stiffness of the drive axle shaft is considered in the model-based design procedure to improve the estimation accuracy. Finally, the designed pressure observer is tested on an amesim powertrain simulation model. Comparisons with an observer without considering the drive shaft compliance are given as well. DEWEY : 553 ISSN : 0022-0434 En ligne : http://www.asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JDSMAA00013400 [...] [article] A nonlinear clutch pressure observer for automatic transmission : considering drive-shaft compliance [texte imprimé] / Bingzhao Gao, Auteur ; Chen, Hong, Auteur ; Lu Tian, Auteur . - 2012 . - 08 p. Dynamic systems Langues : Anglais (eng) in Transactions of the ASME . Journal of dynamic systems, measurement, and control > Vol. 134 N° 1 (Janvier 2012) . - 08 p. Mots-clés : Clutches  Drives  Engines  Nonlinear  control  systems  Observers  Power  transmission  (mechanical)  Reduced  order  systems  Shafts Index. décimale : 553 Géologie économique. Minérographie. Minéraux. Formation et gisements de minerais Résumé : For a new kind of automatic transmissions adopting clutch-to-clutch shift control technology, a clutch pressure observer is proposed to improve the estimation accuracy during the shift torque phase. The observer is designed in the concept of input-to-state stability. Lookup tables, which are widely used to represent the complex nonlinear characteristics of engine systems, appear in their original form in the designed reduced-order observer, and the torsional stiffness of the drive axle shaft is considered in the model-based design procedure to improve the estimation accuracy. Finally, the designed pressure observer is tested on an amesim powertrain simulation model. Comparisons with an observer without considering the drive shaft compliance are given as well. DEWEY : 553 ISSN : 0022-0434 En ligne : http://www.asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JDSMAA00013400 [...]

A Reduced-order nonlinear clutch pressure observer for automatic transmission / Bingzhao Gao in IEEE Transactions on control systems technology, Vol. 18 N° 2 (Mars 2010) 

Public ISBD [article]  in IEEE Transactions on control systems technology > Vol. 18 N° 2 (Mars 2010) . - pp. 446-453 Titre : A Reduced-order nonlinear clutch pressure observer for automatic transmission Type de document : texte imprimé Auteurs : Bingzhao Gao, Auteur ; Chen, Hong, Auteur ; Haiyan Zhao, Auteur Année de publication : 2011 Article en page(s) : pp. 446-453 Note générale : Génie Aérospatial Langues : Anglais (eng) Mots-clés : Automatic  transmission  (AT)  Clutch  pressure  estimation  Input-to-state  stability  (ISS)  Nonlinearity  Reduced-order  observer Index. décimale : 629.1 Résumé : For a novel type of automatic transmissions adopting clutch-to-clutch shift control technology with electro-hydraulic actuators, a clutch pressure observer method based on input-to-state stability (ISS) is proposed. Model uncertainties including steady state error and unmodelled dynamics are considered as additional disturbance inputs and the observer is designed in order that the error dynamics is input-to-state stable. Lookup tables, which are widely used to represent complex nonlinear characteristics of engine systems, appear in their original form in the designed reduced-order observer. The designed pressure observer is tested on an AMESim powertrain simulation model. Comparing with the sliding mode method, the designed pressure observer has the better performance. DEWEY : 629.1 ISSN : 1063-6536 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5200347 [article] A Reduced-order nonlinear clutch pressure observer for automatic transmission [texte imprimé] / Bingzhao Gao, Auteur ; Chen, Hong, Auteur ; Haiyan Zhao, Auteur . - 2011 . - pp. 446-453. Génie Aérospatial Langues : Anglais (eng) in IEEE Transactions on control systems technology > Vol. 18 N° 2 (Mars 2010) . - pp. 446-453 Mots-clés : Automatic  transmission  (AT)  Clutch  pressure  estimation  Input-to-state  stability  (ISS)  Nonlinearity  Reduced-order  observer Index. décimale : 629.1 Résumé : For a novel type of automatic transmissions adopting clutch-to-clutch shift control technology with electro-hydraulic actuators, a clutch pressure observer method based on input-to-state stability (ISS) is proposed. Model uncertainties including steady state error and unmodelled dynamics are considered as additional disturbance inputs and the observer is designed in order that the error dynamics is input-to-state stable. Lookup tables, which are widely used to represent complex nonlinear characteristics of engine systems, appear in their original form in the designed reduced-order observer. The designed pressure observer is tested on an AMESim powertrain simulation model. Comparing with the sliding mode method, the designed pressure observer has the better performance. DEWEY : 629.1 ISSN : 1063-6536 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5200347