LQG Control for Minimization of Emissions in a Diesel Engine
Henningsson, Maria LU ; Ekholm, Kent LU ; Strandh, Petter LU ; Johansson, Rolf LU
and Tunestål, Per
LU
(2008)
IEEE International Conference on Control Applications, 2008
p.303-308
- Abstract
- The problem of minimizing emissions of NO. and soot in a diesel engine using fuel injection timings and exhaust gas recirculation (EGR) valve position in a low-pressure EGR system as control variables is addressed. Two feedback variables are computed from in-cylinder pressure sensor data, the crank angle degree of 50 % fuel burnt, and the ignition delay. Empirical maps of NO, and soot according to the feedback variables form the basis of a quadratic cost function in the feedback variables which is minimized by LQG control. For a multi-cylinder engine, the number of control variables will be less than the number of output variables to be controlled, and the consequences of this setup for the LQG controller is addressed. Experimental results... (More)
- The problem of minimizing emissions of NO. and soot in a diesel engine using fuel injection timings and exhaust gas recirculation (EGR) valve position in a low-pressure EGR system as control variables is addressed. Two feedback variables are computed from in-cylinder pressure sensor data, the crank angle degree of 50 % fuel burnt, and the ignition delay. Empirical maps of NO, and soot according to the feedback variables form the basis of a quadratic cost function in the feedback variables which is minimized by LQG control. For a multi-cylinder engine, the number of control variables will be less than the number of output variables to be controlled, and the consequences of this setup for the LQG controller is addressed. Experimental results verify the performance of the controller at a fixed operating point of a six-cylinder heavy-duty engine. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1375209
- author
- Henningsson, Maria
LU
; Ekholm, Kent
LU
; Strandh, Petter
LU
; Johansson, Rolf
LU
and Tunestål, Per
LU
- organization
- publishing date
- 2008
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- 2008 IEEE International Conference on Control Applications, Vol1 and 2
- pages
- 303 - 308
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- conference name
- IEEE International Conference on Control Applications, 2008
- conference location
- San Antonio, CA, United States
- conference dates
- 2008-09-03 - 2008-09-05
- external identifiers
-
- wos:000263577800051
- scopus:53349128238
- ISSN
- 1085-1992
- ISBN
- 978-1-4244-2222-7
- project
- Diesel HCCI in a Multi-Cylinder Engine
- language
- English
- LU publication?
- yes
- id
- f31afb08-e04b-4b3f-b84e-190d3cafe29a (old id 1375209)
- date added to LUP
- 2016-04-01 13:43:45
- date last changed
- 2024-06-05 16:42:37
@inproceedings{f31afb08-e04b-4b3f-b84e-190d3cafe29a,
abstract = {{The problem of minimizing emissions of NO. and soot in a diesel engine using fuel injection timings and exhaust gas recirculation (EGR) valve position in a low-pressure EGR system as control variables is addressed. Two feedback variables are computed from in-cylinder pressure sensor data, the crank angle degree of 50 % fuel burnt, and the ignition delay. Empirical maps of NO, and soot according to the feedback variables form the basis of a quadratic cost function in the feedback variables which is minimized by LQG control. For a multi-cylinder engine, the number of control variables will be less than the number of output variables to be controlled, and the consequences of this setup for the LQG controller is addressed. Experimental results verify the performance of the controller at a fixed operating point of a six-cylinder heavy-duty engine.}},
author = {{Henningsson, Maria and Ekholm, Kent and Strandh, Petter and Johansson, Rolf and Tunestål, Per}},
booktitle = {{2008 IEEE International Conference on Control Applications, Vol1 and 2}},
isbn = {{978-1-4244-2222-7}},
issn = {{1085-1992}},
language = {{eng}},
pages = {{303--308}},
publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
title = {{LQG Control for Minimization of Emissions in a Diesel Engine}},
year = {{2008}},
}