[article] 
inIEEE 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