Modeling and Model-based Control of Homogeneous Charge Compression Ignition (HCCI) Engine Dynamics
Johansson, Rolf LU
; Widd, Anders
LU
and Tunestål, Per
LU
(2009)
1st International Workshop on Networked Embedded and Control System Technologies/European and Russian R&D Cooperation Workshop
p.31-44
- Abstract
- The Homogeneous Charge Compression Ignition (HCCI) principle holds promise to increase efficiency and to reduce emissions from internal combustion engines. As HCCI combustion lacks direct ignition timing control and auto-ignition depends on the operating condition, control of auto-ignition is necessary. Since auto-ignition of a homogeneous mixture is very sensitive to operating conditions, a fast combustion phasing control is necessary for reliable operation. To this purpose, HCCI modeling and model-based control with experimental validation were studied. A six-cylinder heavy-duty HCCI engine was controlled on a cycle-to-cycle basis in real time using a variety of sensors, actuators and control structures for control of the HCCI combustion... (More)
- The Homogeneous Charge Compression Ignition (HCCI) principle holds promise to increase efficiency and to reduce emissions from internal combustion engines. As HCCI combustion lacks direct ignition timing control and auto-ignition depends on the operating condition, control of auto-ignition is necessary. Since auto-ignition of a homogeneous mixture is very sensitive to operating conditions, a fast combustion phasing control is necessary for reliable operation. To this purpose, HCCI modeling and model-based control with experimental validation were studied. A six-cylinder heavy-duty HCCI engine was controlled on a cycle-to-cycle basis in real time using a variety of sensors, actuators and control structures for control of the HCCI combustion in comparison. The controllers were based on linearizations of a previously presented physical, nonlinear, model of HCCI including cylinder wall temperature dynamics. The control signals were the inlet air temperature and the inlet valve closing. A system for fast thermal management was installed and controlled using mid-ranging control. The resulting control performance was experimentally evaluated in terms of response time and steady-state output variance. For a given operating point, a comparable decrease in steady-state output variance was obtained either by introducing a disturbance model or by changing linearization point. The robustness towards disturbances was investigated as well as the effects of varying the prediction and control horizons. Increasing the horizons had a very limited effect on the closed-loop performance while increasing the computational demands substantially. As shown in the paper, modeling constitutes a necessary element for embedded networked control design applied to HCCI combustion engine design. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1697982
- author
- Johansson, Rolf
LU
; Widd, Anders
LU
and Tunestål, Per
LU
- organization
- publishing date
- 2009
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- Nester 2009: Networked Embedded and Control System Technologies: European and Russian R&D Cooperation, Proceedings
- pages
- 31 - 44
- publisher
- Institute for Systems and Technologies of Information, Control and Communication
- conference name
- 1st International Workshop on Networked Embedded and Control System Technologies/European and Russian R&D Cooperation Workshop
- conference location
- Milan, Italy
- conference dates
- 2009-07-04 - 2009-07-05
- external identifiers
-
- wos:000281699700005
- scopus:74549175906
- project
- Competence Centre for Combustion Processes
- language
- English
- LU publication?
- yes
- id
- f8d859bf-91a2-4298-8b42-8d8551721882 (old id 1697982)
- date added to LUP
- 2016-04-04 10:26:13
- date last changed
- 2024-01-12 20:17:33
@inproceedings{f8d859bf-91a2-4298-8b42-8d8551721882,
abstract = {{The Homogeneous Charge Compression Ignition (HCCI) principle holds promise to increase efficiency and to reduce emissions from internal combustion engines. As HCCI combustion lacks direct ignition timing control and auto-ignition depends on the operating condition, control of auto-ignition is necessary. Since auto-ignition of a homogeneous mixture is very sensitive to operating conditions, a fast combustion phasing control is necessary for reliable operation. To this purpose, HCCI modeling and model-based control with experimental validation were studied. A six-cylinder heavy-duty HCCI engine was controlled on a cycle-to-cycle basis in real time using a variety of sensors, actuators and control structures for control of the HCCI combustion in comparison. The controllers were based on linearizations of a previously presented physical, nonlinear, model of HCCI including cylinder wall temperature dynamics. The control signals were the inlet air temperature and the inlet valve closing. A system for fast thermal management was installed and controlled using mid-ranging control. The resulting control performance was experimentally evaluated in terms of response time and steady-state output variance. For a given operating point, a comparable decrease in steady-state output variance was obtained either by introducing a disturbance model or by changing linearization point. The robustness towards disturbances was investigated as well as the effects of varying the prediction and control horizons. Increasing the horizons had a very limited effect on the closed-loop performance while increasing the computational demands substantially. As shown in the paper, modeling constitutes a necessary element for embedded networked control design applied to HCCI combustion engine design.}},
author = {{Johansson, Rolf and Widd, Anders and Tunestål, Per}},
booktitle = {{Nester 2009: Networked Embedded and Control System Technologies: European and Russian R&D Cooperation, Proceedings}},
language = {{eng}},
pages = {{31--44}},
publisher = {{Institute for Systems and Technologies of Information, Control and Communication}},
title = {{Modeling and Model-based Control of Homogeneous Charge Compression Ignition (HCCI) Engine Dynamics}},
year = {{2009}},
}