eprintid: 509
rev_number: 10
eprint_status: archive
userid: 7
dir: disk0/00/00/05/09
datestamp: 2011-07-27 08:39:04
lastmod: 2011-08-04 07:29:06
status_changed: 2011-07-27 08:39:04
type: book_section
metadata_visibility: show
contact_email: alberto.bemporad@imtlucca.it
item_issues_count: 0
creators_name: Bemporad, Alberto
creators_name: Di Cairano, Stefano
creators_name: Kolmanovsky, Ilya
creators_name: Hrovat, Davor
creators_id: alberto.bemporad@imtlucca.it
creators_id: 
creators_id: 
creators_id: 
title: Hybrid modeling and control of a multibody magnetic actuator for automotive applications
ispublished: pub
subjects: TA
subjects: TJ
divisions: CSA
full_text_status: none
keywords: automotive applications; current limits; hybrid MPC design; hybrid dynamical system; hybrid modeling; magnetic force; mechanical wear; model predictive control; multi-mass magnetic actuator; multibody magnetic actuator; position-dependent nonlinear bounds; switched MPC control design; two-mass model; automobiles; automotive engineering; control system synthesis; electromagnetic actuators; magnetic forces; nonlinear control systems; predictive control
abstract: This paper investigates model predictive control (MPC) techniques based on hybrid models for a multi-mass magnetic actuator. The actuator has four operating modes depending on the mutual interaction of two moving masses and is modeled as a hybrid dynamical system. The control law optimizes a performance index and enforces several types of constraints: soft-landing during collisions to reduce mechanical wear, current limits and consequent position-dependent nonlinear bounds on the available magnetic force, and restrictions on the positions of the moving masses. Two different approaches are considered: (i) a hybrid MPC design based on the full two- mass model, and (ii) a switched MPC control design, which switches between two simpler hybrid MPC controllers, one for the case in which the masses are moving in contact, and the other case where the masses are decoupled, commanded by a simple switching logic. Simulation results and performance comparisons of the two control schemes are discussed.
date: 2007
publication: Decision and Control
publisher: IEEE
place_of_pub: 12th-14th December 2007
pagerange: 5270-5275 
event_title: 46th IEEE Conference on Decision and Control
event_location: 12th-14th December 2007
event_dates: New Orleans, LA
id_number: 10.1109/CDC.2007.4434486
refereed: TRUE
isbn: 978-1-4244-1497-0 
book_title: Decision and Control
official_url: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4434486&isnumber=4434000
citation:   Bemporad, Alberto and Di Cairano, Stefano and Kolmanovsky, Ilya and Hrovat, Davor  Hybrid modeling and control of a multibody magnetic actuator for automotive applications.   In:  Decision and Control.   IEEE, 12th-14th December 2007, 5270-5275 .  ISBN 978-1-4244-1497-0       (2007)