Control of recompression HCCI with a three region switching controller
(2013) In Control Engineering Practice 21(2). p.135-145- Abstract
- Homogeneous charge compression ignition (HCCI) presents new challenges in combustion phasing control due to the lack of direct ignition trigger. In addition, recompression HCCI possesses cycle-to-cycle coupling through trapping a large portion of the exhaust gas in the cylinder. This paper examines the change in the cycle-to-cycle coupling around different operating points in recompression HCCI and show that there are three qualitative types of temperature dynamics: smooth decaying when combustion phasing is early, oscillatory when phasing is late, and strongly converging with moderate combustion phasing. As a result, a three region switching linear model that combines three linearized models can capture the qualitative change in system... (More)
- Homogeneous charge compression ignition (HCCI) presents new challenges in combustion phasing control due to the lack of direct ignition trigger. In addition, recompression HCCI possesses cycle-to-cycle coupling through trapping a large portion of the exhaust gas in the cylinder. This paper examines the change in the cycle-to-cycle coupling around different operating points in recompression HCCI and show that there are three qualitative types of temperature dynamics: smooth decaying when combustion phasing is early, oscillatory when phasing is late, and strongly converging with moderate combustion phasing. As a result, a three region switching linear model that combines three linearized models can capture the qualitative change in system characteristics. Based on this model, a three region switching controller is designed and shown in experiments that it can track a wide range of desired combustion phasing and improve the variance of combustion phasing over open-loop operations. In the last part of this paper, two semi-definite programming (SDP) formulations are presented to prove the stability of the switching control/model framework. (C) 2012 Elsevier Ltd. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3590204
- author
- Liao, Hsien-Hsin ; Widd, Anders LU ; Ravi, Nikhil ; Jungkunz, Adam F. ; Kang, Jun-Mo and Gerdes, J. Christian
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- HCCI, Switching linear model, Switching control, SDP, Combustion phasing, control, Engine modeling
- in
- Control Engineering Practice
- volume
- 21
- issue
- 2
- pages
- 135 - 145
- publisher
- Elsevier
- external identifiers
-
- wos:000314077900001
- scopus:84870765920
- ISSN
- 0967-0661
- DOI
- 10.1016/j.conengprac.2012.09.003
- language
- English
- LU publication?
- yes
- id
- 75e30998-f03d-4f90-9967-1f2b9588feb1 (old id 3590204)
- date added to LUP
- 2016-04-01 10:13:27
- date last changed
- 2022-01-25 21:05:21
@article{75e30998-f03d-4f90-9967-1f2b9588feb1,
abstract = {{Homogeneous charge compression ignition (HCCI) presents new challenges in combustion phasing control due to the lack of direct ignition trigger. In addition, recompression HCCI possesses cycle-to-cycle coupling through trapping a large portion of the exhaust gas in the cylinder. This paper examines the change in the cycle-to-cycle coupling around different operating points in recompression HCCI and show that there are three qualitative types of temperature dynamics: smooth decaying when combustion phasing is early, oscillatory when phasing is late, and strongly converging with moderate combustion phasing. As a result, a three region switching linear model that combines three linearized models can capture the qualitative change in system characteristics. Based on this model, a three region switching controller is designed and shown in experiments that it can track a wide range of desired combustion phasing and improve the variance of combustion phasing over open-loop operations. In the last part of this paper, two semi-definite programming (SDP) formulations are presented to prove the stability of the switching control/model framework. (C) 2012 Elsevier Ltd. All rights reserved.}},
author = {{Liao, Hsien-Hsin and Widd, Anders and Ravi, Nikhil and Jungkunz, Adam F. and Kang, Jun-Mo and Gerdes, J. Christian}},
issn = {{0967-0661}},
keywords = {{HCCI; Switching linear model; Switching control; SDP; Combustion phasing; control; Engine modeling}},
language = {{eng}},
number = {{2}},
pages = {{135--145}},
publisher = {{Elsevier}},
series = {{Control Engineering Practice}},
title = {{Control of recompression HCCI with a three region switching controller}},
url = {{http://dx.doi.org/10.1016/j.conengprac.2012.09.003}},
doi = {{10.1016/j.conengprac.2012.09.003}},
volume = {{21}},
year = {{2013}},
}