Self tuning cylinder pressure based heat release computation

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

The paper describes a novel method for self tuning cylinder pressure
based heat release computation that is suitable for online usage in e.g. combustion
phasing control applications. 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 is 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 heat release algorithm with no
need to model heat losses, crevice losses and blow-by.

Details

Authors
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Other Mechanical Engineering

Keywords

  • Cylinder Pressure, Least Squares Estimation, Self Tuning, Heat Release, Identification
Original languageEnglish
Title of host publicationProceedings for the 5th IFAC Symposium on Advances in Automotive Control
PublisherInternational Federation of Automatic Control
Pages183-190
Publication statusPublished - 2007
Publication categoryResearch
Peer-reviewedYes
Event5th IFAC Symposium on Advances in Automotive Control - Seascape Resort, California
Duration: 2007 Aug 20 → …

Conference

Conference5th IFAC Symposium on Advances in Automotive Control
Period2007/08/20 → …