relation: http://eprints.imtlucca.it/522/
title: Explicit hybrid optimal control of direct injection stratified charge engines
creator: Giorgetti, Nicolò
creator: Bemporad, Alberto
creator: Kolmanovsky, Ilya
creator: Hrovat, Davor
subject: QA Mathematics
subject: TL Motor vehicles. Aeronautics. Astronautics
description: This paper illustrates the application of hybrid  modeling and receding horizon optimal control techniques  to the problem of air-to-fuel ratio and torque management  in advanced technology gasoline direct injection stratified  charge (DISC) engines. A DISC engine represents an example  of a constrained hybrid system, because it can operate  in two discrete modes (stratified and homogeneous) and  because the mode-dependent constraints on the air-to-fuel  ratio and on the spark timing need to be enforced. The paper  extends the prior work by the authors [1] and reports the  development of an explicit controller which implements the  optimal solution using piecewise affine functions of the state, thereby avoiding the need for on-line optimization. Strategies to simplify the explicit controller by reducing the number of regions in its characterization are discussed.
publisher: IEEE
date: 2005
type: Book Section
type: PeerReviewed
identifier:   Giorgetti, Nicolò and Bemporad, Alberto and Kolmanovsky, Ilya and Hrovat, Davor  Explicit hybrid optimal control of direct injection stratified charge engines.   In:  Symposium on Industrial Electronics.   IEEE, 20th-23th June 2005 , pp. 247-252.  ISBN 0-7803-8738-4       (2005)  
relation: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=1528920&isnumber=32652
relation: 10.1109/ISIE.2005.1528920