Self-tuning gross heat release computation for internal combustion engines
(2009) In Control Engineering Practice 17(4). p.518-524- Abstract
- The paper describes a novel method for self-tuning gross heat release computation in internal combustion engines suitable for both online usage in combustion phasing control applications and post-processing of cylinder pressure measurements. The method estimates the polytropic exponents and cylinder pressure offsets immediately preceding and succeeding the combustion event, respectively, using a fast nonlinear least-squares method. The polytropic exponent and the pressure offset are subsequently interpolated during the combustion event and a net heat release computation is performed based on the interpolated exponent and pressure. The result is a self-tuning gross heat release algorithm with no need to model heat losses, crevice losses and... (More)
- The paper describes a novel method for self-tuning gross heat release computation in internal combustion engines suitable for both online usage in combustion phasing control applications and post-processing of cylinder pressure measurements. The method estimates the polytropic exponents and cylinder pressure offsets immediately preceding and succeeding the combustion event, respectively, using a fast nonlinear least-squares method. The polytropic exponent and the pressure offset are subsequently interpolated during the combustion event and a net heat release computation is performed based on the interpolated exponent and pressure. The result is a self-tuning gross heat release algorithm with no need to model heat losses, crevice losses and blow-by explicitly. (C) 2008 Elsevier Ltd. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1401878
- author
- Tunestål, Per LU
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Nonlinear, squares, Least, Estimation, Engine control, Cylinder pressure, Heat release
- in
- Control Engineering Practice
- volume
- 17
- issue
- 4
- pages
- 518 - 524
- publisher
- Elsevier
- external identifiers
-
- wos:000264466600009
- scopus:60249097824
- ISSN
- 0967-0661
- DOI
- 10.1016/j.conengprac.2008.09.012
- project
- Competence Centre for Combustion Processes
- language
- English
- LU publication?
- yes
- id
- 94bf8d65-3559-4531-a844-a91e4bef69c9 (old id 1401878)
- date added to LUP
- 2016-04-01 12:15:06
- date last changed
- 2022-01-27 01:00:56
@article{94bf8d65-3559-4531-a844-a91e4bef69c9,
abstract = {{The paper describes a novel method for self-tuning gross heat release computation in internal combustion engines suitable for both online usage in combustion phasing control applications and post-processing of cylinder pressure measurements. The method estimates the polytropic exponents and cylinder pressure offsets immediately preceding and succeeding the combustion event, respectively, using a fast nonlinear least-squares method. The polytropic exponent and the pressure offset are subsequently interpolated during the combustion event and a net heat release computation is performed based on the interpolated exponent and pressure. The result is a self-tuning gross heat release algorithm with no need to model heat losses, crevice losses and blow-by explicitly. (C) 2008 Elsevier Ltd. All rights reserved.}},
author = {{Tunestål, Per}},
issn = {{0967-0661}},
keywords = {{Nonlinear; squares; Least; Estimation; Engine control; Cylinder pressure; Heat release}},
language = {{eng}},
number = {{4}},
pages = {{518--524}},
publisher = {{Elsevier}},
series = {{Control Engineering Practice}},
title = {{Self-tuning gross heat release computation for internal combustion engines}},
url = {{http://dx.doi.org/10.1016/j.conengprac.2008.09.012}},
doi = {{10.1016/j.conengprac.2008.09.012}},
volume = {{17}},
year = {{2009}},
}