Cylinder air/fuel ratio estimation using net heat release data
(2003) In Control Engineering Practice 11(3). p.311-318- Abstract
- An estimation model which uses the net heat release profile for estimating the cylinder air/fuel ratio of a spark ignition engine is developed. The net heat release profile is computed from the cylinder pressure trace and quantifies the conversion of chemical energy of the reactants in the charge into thermal energy. The net heat release profile does not take heat- or mass transfer into account. Cycle-averaged air/fuel ratio estimates over a range of engine speeds and loads show an RMS error of 4.1% compared to measurements in the exhaust.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/163638
- author
- Tunestål, Per LU and Hedrick, J. Karl
- organization
- publishing date
- 2003
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Engine control, Engine modelling, Pressure, Least-squares estimation, Least-squares identification
- in
- Control Engineering Practice
- volume
- 11
- issue
- 3
- pages
- 311 - 318
- publisher
- Elsevier
- external identifiers
-
- wos:000183597100008
- scopus:0037359789
- ISSN
- 0967-0661
- DOI
- 10.1016/S0967-0661(02)00045-X
- language
- English
- LU publication?
- yes
- id
- b660983c-b221-4596-8869-1a8767fb2b5c (old id 163638)
- date added to LUP
- 2016-04-01 12:24:05
- date last changed
- 2022-01-27 03:16:20
@article{b660983c-b221-4596-8869-1a8767fb2b5c, abstract = {{An estimation model which uses the net heat release profile for estimating the cylinder air/fuel ratio of a spark ignition engine is developed. The net heat release profile is computed from the cylinder pressure trace and quantifies the conversion of chemical energy of the reactants in the charge into thermal energy. The net heat release profile does not take heat- or mass transfer into account. Cycle-averaged air/fuel ratio estimates over a range of engine speeds and loads show an RMS error of 4.1% compared to measurements in the exhaust.}}, author = {{Tunestål, Per and Hedrick, J. Karl}}, issn = {{0967-0661}}, keywords = {{Engine control; Engine modelling; Pressure; Least-squares estimation; Least-squares identification}}, language = {{eng}}, number = {{3}}, pages = {{311--318}}, publisher = {{Elsevier}}, series = {{Control Engineering Practice}}, title = {{Cylinder air/fuel ratio estimation using net heat release data}}, url = {{https://lup.lub.lu.se/search/files/2908202/625784.pdf}}, doi = {{10.1016/S0967-0661(02)00045-X}}, volume = {{11}}, year = {{2003}}, }