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HCCI Closed-Loop Combustion Control Using Fast Thermal Management

Haraldsson, Göran LU ; Tunestål, Per LU ; Johansson, Bengt LU and Hyvönen, Jari LU (2004) In SAE Transactions, Journal of Engines 113(3). p.599-610
Abstract
This study applies Closed-Loop Combustion Control (CLCC) using Fast Thermal Management (FTM) on a multi-cylinder Variable Compression Ratio (VCR) engine together with load control, to achieve a favorable combustion phasing and load at all times. Step changes of set points for combustion phasing, Compression Ratio (CR), and load together with ramps of engine speed with either constant load, i.e., load control enabled, or constant fuel amount are investigated. Performances of the controllers are investigated by running the engine and comparing the result with CLCC using VCR, which was used in an earlier test. Commercial RON/MON 92/82 gasoline, which corresponds to US regular, is used in the transient tests. Limitations to the speed ramps are... (More)
This study applies Closed-Loop Combustion Control (CLCC) using Fast Thermal Management (FTM) on a multi-cylinder Variable Compression Ratio (VCR) engine together with load control, to achieve a favorable combustion phasing and load at all times. Step changes of set points for combustion phasing, Compression Ratio (CR), and load together with ramps of engine speed with either constant load, i.e., load control enabled, or constant fuel amount are investigated. Performances of the controllers are investigated by running the engine and comparing the result with CLCC using VCR, which was used in an earlier test. Commercial RON/MON 92/82 gasoline, which corresponds to US regular, is used in the transient tests. Limitations to the speed ramps are further examined and it is found that choice of fuel and its low temperature reaction properties has large impact on how the CLCC perform. The CLCC using FTM handles step changes in combustion phasing fairly well and has a time constant of 8 engine cycles, which is 57% faster than the CLCC using VCR even though it suffers from the large air volume between throttle and engine inlet. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Combustion, Control, HCCI, Engine
in
SAE Transactions, Journal of Engines
volume
113
issue
3
pages
599 - 610
publisher
Society of Automotive Engineers
external identifiers
  • scopus:84877177373
ISSN
0096-736X
language
English
LU publication?
yes
id
f2c04ddc-7e85-4bc8-9f3c-08b50f9d8cfd (old id 163610)
alternative location
http://www.ingentaconnect.com/content/docdel/art1045772222
http://www.sae.org/technical/papers/2004-01-0943
date added to LUP
2007-07-04 09:00:10
date last changed
2017-09-10 04:32:47
@article{f2c04ddc-7e85-4bc8-9f3c-08b50f9d8cfd,
  abstract     = {This study applies Closed-Loop Combustion Control (CLCC) using Fast Thermal Management (FTM) on a multi-cylinder Variable Compression Ratio (VCR) engine together with load control, to achieve a favorable combustion phasing and load at all times. Step changes of set points for combustion phasing, Compression Ratio (CR), and load together with ramps of engine speed with either constant load, i.e., load control enabled, or constant fuel amount are investigated. Performances of the controllers are investigated by running the engine and comparing the result with CLCC using VCR, which was used in an earlier test. Commercial RON/MON 92/82 gasoline, which corresponds to US regular, is used in the transient tests. Limitations to the speed ramps are further examined and it is found that choice of fuel and its low temperature reaction properties has large impact on how the CLCC perform. The CLCC using FTM handles step changes in combustion phasing fairly well and has a time constant of 8 engine cycles, which is 57% faster than the CLCC using VCR even though it suffers from the large air volume between throttle and engine inlet.},
  author       = {Haraldsson, Göran and Tunestål, Per and Johansson, Bengt and Hyvönen, Jari},
  issn         = {0096-736X},
  keyword      = {Combustion,Control,HCCI,Engine},
  language     = {eng},
  number       = {3},
  pages        = {599--610},
  publisher    = {Society of Automotive Engineers},
  series       = {SAE Transactions, Journal of Engines},
  title        = {HCCI Closed-Loop Combustion Control Using Fast Thermal Management},
  volume       = {113},
  year         = {2004},
}