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Ion Current Sensing for HCCI Combustion Feedback

Strandh, Petter LU ; Christensen, Magnus LU ; Bengtsson, Johan LU ; Johansson, Rolf LU ; Vressner, Andreas LU ; Tunestål, Per LU and Johansson, Bengt LU (2003) In SAE Technical Papers
Abstract
Measurement of ion current signal from HCCI combustionwas performed. The aim of the work was to investigateif a measurable ion current signal exists and if it is possible to obtain useful information about the combustion process. Furthermore, influence of mixture quality in termsof air/fuel ratio and EGR on the ion current signal wasstudied. A conventional spark plug was used as ionizationsensor. A DC voltage (85 Volt) was applied acrossthe electrode gap. By measuring the current through thegap the state of the gas can be probed. A comparisonbetween measured pressure and ion current signal wasperformed, and dynamic models were estimated by usingsystem identification methods.The study shows that an ion current signal can be obtainedfrom... (More)
Measurement of ion current signal from HCCI combustionwas performed. The aim of the work was to investigateif a measurable ion current signal exists and if it is possible to obtain useful information about the combustion process. Furthermore, influence of mixture quality in termsof air/fuel ratio and EGR on the ion current signal wasstudied. A conventional spark plug was used as ionizationsensor. A DC voltage (85 Volt) was applied acrossthe electrode gap. By measuring the current through thegap the state of the gas can be probed. A comparisonbetween measured pressure and ion current signal wasperformed, and dynamic models were estimated by usingsystem identification methods.The study shows that an ion current signal can be obtainedfrom HCCI combustion and that the signal levelis very sensitive to the fuel/air equivalence ratio. Themost important result from this study is that the ion current signal proved to be an excellent indicator of the actual combustion timing which is crucial piece of information for HCCI control. (Less)
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author
organization
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type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
SAE Technical Papers
issue
2003-01-3216
publisher
Society of Automotive Engineers
external identifiers
  • scopus:84877372542
ISSN
0148-7191
language
English
LU publication?
yes
id
f9057c2a-9d56-4b0e-9cbb-c5b9f8269d66 (old id 536665)
alternative location
http://www.sae.org/technical/papers/2003-01-3216
date added to LUP
2007-09-25 11:43:49
date last changed
2018-06-10 04:31:33
@inproceedings{f9057c2a-9d56-4b0e-9cbb-c5b9f8269d66,
  abstract     = {Measurement of ion current signal from HCCI combustionwas performed. The aim of the work was to investigateif a measurable ion current signal exists and if it is possible to obtain useful information about the combustion process. Furthermore, influence of mixture quality in termsof air/fuel ratio and EGR on the ion current signal wasstudied. A conventional spark plug was used as ionizationsensor. A DC voltage (85 Volt) was applied acrossthe electrode gap. By measuring the current through thegap the state of the gas can be probed. A comparisonbetween measured pressure and ion current signal wasperformed, and dynamic models were estimated by usingsystem identification methods.The study shows that an ion current signal can be obtainedfrom HCCI combustion and that the signal levelis very sensitive to the fuel/air equivalence ratio. Themost important result from this study is that the ion current signal proved to be an excellent indicator of the actual combustion timing which is crucial piece of information for HCCI control.},
  author       = {Strandh, Petter and Christensen, Magnus and Bengtsson, Johan and Johansson, Rolf and Vressner, Andreas and Tunestål, Per and Johansson, Bengt},
  booktitle    = {SAE Technical Papers},
  issn         = {0148-7191},
  language     = {eng},
  number       = {2003-01-3216},
  publisher    = {Society of Automotive Engineers},
  title        = {Ion Current Sensing for HCCI Combustion Feedback},
  year         = {2003},
}