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HCCI Engine Modeling and Control Using Conservation Principles

Blom, Daniel; Henningsson, Maria LU ; Ekholm, Kent LU ; Tunestål, Per LU and Johansson, Rolf LU (2008) SAE World Congress 2008 In SAE Technical Paper 2008-01-0789
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 by applying in-cylinder pressure feedback. A low-complexity physical model was developed,... (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 by applying in-cylinder pressure feedback. A low-complexity physical model was developed, aiming at describing the major thermodynamic and chemical interactions in the course of an engine stroke. The model shows the importance of thermal interaction between the combustion and the cylinder walls. The model was used to synthesize a controller for controlling the combustion phasing by varying the inlet valve closing and the inlet temperature. The sythesized controller behaves well both in steady-state and during step changes of the desired combustion phasing. (Less)
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author
organization
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type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Multivariable Control, HCCI Engine, Physical Modeling
in
SAE Technical Paper 2008-01-0789
conference name
SAE World Congress 2008
external identifiers
  • Scopus:84877161702
language
English
LU publication?
yes
id
c6c6fafc-eaa2-44dd-a2ae-5e68cd8f14ee (old id 1439280)
date added to LUP
2009-07-11 14:00:03
date last changed
2017-02-26 04:34:28
@inproceedings{c6c6fafc-eaa2-44dd-a2ae-5e68cd8f14ee,
  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 by applying in-cylinder pressure feedback. A low-complexity physical model was developed, aiming at describing the major thermodynamic and chemical interactions in the course of an engine stroke. The model shows the importance of thermal interaction between the combustion and the cylinder walls. The model was used to synthesize a controller for controlling the combustion phasing by varying the inlet valve closing and the inlet temperature. The sythesized controller behaves well both in steady-state and during step changes of the desired combustion phasing.},
  author       = {Blom, Daniel and Henningsson, Maria and Ekholm, Kent and Tunestål, Per and Johansson, Rolf},
  booktitle    = {SAE Technical Paper 2008-01-0789},
  keyword      = {Multivariable Control,HCCI Engine,Physical Modeling},
  language     = {eng},
  title        = {HCCI Engine Modeling and Control Using Conservation Principles},
  year         = {2008},
}