eprintid: 548 rev_number: 8 eprint_status: archive userid: 7 dir: disk0/00/00/05/48 datestamp: 2011-07-27 09:07:57 lastmod: 2011-08-04 07:29:09 status_changed: 2011-07-27 09:07:57 type: book_section metadata_visibility: show contact_email: alberto.bemporad@imtlucca.it item_issues_count: 0 creators_name: Bemporad, Alberto creators_name: Giorgetti, Nicolò creators_name: Kolmanovsky, Ilya creators_name: Hrovat, Davor creators_id: alberto.bemporad@imtlucca.it creators_id: creators_id: creators_id: title: A hybrid system approach to modeling and optimal control of DISC engines ispublished: pub subjects: TJ subjects: TL divisions: CSA full_text_status: none keywords: air-to-fuel ratio; automotive engines; closed-loop performance; direct injection stratified charge engines; hybrid modeling; optimal control; piecewise affine function; torque control; closed loop systems; internal combustion engines; optimal control; torque control abstract: This paper illustrates the application of hybrid modeling and optimal control to the problem of air-to-fuel ratio and torque control in advanced technology gasoline direct injection stratified charge (DISC) engines. DISC engines have two discrete modes of operation, stratified and homogeneous, and their dynamic behavior can be easily captured by a hybrid model. We show that the design flow (hybrid modeling and controller synthesis) is simple in terms of problem setup and tuning, provides good closed-loop performance, and leads to a control law that can be implemented on automotive hardware as a piecewise affine function of the measured and estimated quantities. date: 2002 date_type: published publication: Proc. 41th IEEE Conf. on Decision and Control volume: 2 publisher: IEEE place_of_pub: Las Vegas, Nevada USA, December 2002 pagerange: 1582-1587 id_number: 10.1109/CDC.2002.1184745 refereed: TRUE isbn: 0-7803-7516-5 book_title: Decision and Control Conference official_url: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=1184745&isnumber=26567 citation: Bemporad, Alberto and Giorgetti, Nicolò and Kolmanovsky, Ilya and Hrovat, Davor A hybrid system approach to modeling and optimal control of DISC engines. In: Decision and Control Conference. IEEE, Las Vegas, Nevada USA, December 2002, pp. 1582-1587. ISBN 0-7803-7516-5 (2002)