Documents disponibles écrits par cet auteur

Design and evaluation of an integrated chassis controller for automotive vehicle emulation / Akar, Mehmet in IEEE transactions on industrial electronics, Vol. 56 N° 9 (Septembre 2009) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 56 N° 9 (Septembre 2009) . - pp. 3571-3579 Titre : Design and evaluation of an integrated chassis controller for automotive vehicle emulation Type de document : texte imprimé Auteurs : Akar, Mehmet, Auteur ; Kalkkuhl, Jens C., Auteur Article en page(s) : pp. 3571-3579 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Integrated  chassis  controller  Automotive  vehicle  emulation Index. décimale : 621 Ingénierie mécanique en général. Technologie nucléaire. Ingénierie électrique. Machinerie Résumé : In this paper, we design an integrated chassis controller (ICC) for vehicle emulation and investigate its performance. The proposed ICC consists of four-wheel automatic steering for lateral dynamics tracking and a suspension controller for emulating desired vertical motion. The lateral control unit utilizes sliding-mode theory, and its design is based on the observation that the coupling from vertical to lateral dynamics is weak in the linear operating regime of interest (i.e., for lateral accelerations below 4 m/s2). The proposed vertical controller consists of an active body controller and a force controller that are both designed based on mathematical models derived from physical principles and also validated by experimental data. The efficacy of the vertical controller is illustrated by experimental tests, while the performance of ICC is demonstrated by realistic scenarios in an advanced nonlinear simulator. DEWEY : 621 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?isnumber=5200775&arnumber=4773267 [...] [article] Design and evaluation of an integrated chassis controller for automotive vehicle emulation [texte imprimé] / Akar, Mehmet, Auteur ; Kalkkuhl, Jens C., Auteur . - pp. 3571-3579. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 56 N° 9 (Septembre 2009) . - pp. 3571-3579 Mots-clés : Integrated  chassis  controller  Automotive  vehicle  emulation Index. décimale : 621 Ingénierie mécanique en général. Technologie nucléaire. Ingénierie électrique. Machinerie Résumé : In this paper, we design an integrated chassis controller (ICC) for vehicle emulation and investigate its performance. The proposed ICC consists of four-wheel automatic steering for lateral dynamics tracking and a suspension controller for emulating desired vertical motion. The lateral control unit utilizes sliding-mode theory, and its design is based on the observation that the coupling from vertical to lateral dynamics is weak in the linear operating regime of interest (i.e., for lateral accelerations below 4 m/s2). The proposed vertical controller consists of an active body controller and a force controller that are both designed based on mathematical models derived from physical principles and also validated by experimental data. The efficacy of the vertical controller is illustrated by experimental tests, while the performance of ICC is demonstrated by realistic scenarios in an advanced nonlinear simulator. DEWEY : 621 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?isnumber=5200775&arnumber=4773267 [...]

On transient improvement of variable structure controlled systems using multimodel switching / Akar, Mehmet in Transactions of the ASME . Journal of dynamic systems, measurement, and control, Vol. 132 N° 3 (Mai 2010) 

Public ISBD [article]  in Transactions of the ASME . Journal of dynamic systems, measurement, and control > Vol. 132 N° 3 (Mai 2010) . - 05 p. Titre : On transient improvement of variable structure controlled systems using multimodel switching Type de document : texte imprimé Auteurs : Akar, Mehmet, Auteur Année de publication : 2010 Article en page(s) : 05 p. Note générale : Systèmes dynamiques Langues : Anglais (eng) Mots-clés : Nonlinear  control  systems  Time-varying  systems  Uncertain  systems  Variable  structure  systems Index. décimale : 629.8 Résumé : This paper presents a multiple model/controller scheme for robust tracking of a class of nonlinear systems in the presence of large plant uncertainties and disturbance. Each model is associated with a sliding mode controller, and a switching logic is designed to pick the model that best approximates the plant at each instant. Theoretically, it is shown that the proposed control scheme achieves perfect tracking despite the existence of disturbance, whereas simulation results verify the improvement in the transient performance. DEWEY : 629.8 ISSN : 0022-0434 En ligne : http://asmedl.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JDSMAA00013200 [...] [article] On transient improvement of variable structure controlled systems using multimodel switching [texte imprimé] / Akar, Mehmet, Auteur . - 2010 . - 05 p. Systèmes dynamiques Langues : Anglais (eng) in Transactions of the ASME . Journal of dynamic systems, measurement, and control > Vol. 132 N° 3 (Mai 2010) . - 05 p. Mots-clés : Nonlinear  control  systems  Time-varying  systems  Uncertain  systems  Variable  structure  systems Index. décimale : 629.8 Résumé : This paper presents a multiple model/controller scheme for robust tracking of a class of nonlinear systems in the presence of large plant uncertainties and disturbance. Each model is associated with a sliding mode controller, and a switching logic is designed to pick the model that best approximates the plant at each instant. Theoretically, it is shown that the proposed control scheme achieves perfect tracking despite the existence of disturbance, whereas simulation results verify the improvement in the transient performance. DEWEY : 629.8 ISSN : 0022-0434 En ligne : http://asmedl.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JDSMAA00013200 [...]