Closed-loop control of combustion phasing in an HCCI engine using VVA and variable EGR

Maria Karlsson*, Kent Ekholm, Petter Strandh, Rolf Johansson, Per Tunestål, Bengt Johansson

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

16 Scopus citations

Abstract

A homogeneous charge compression ignition (HCCI) engine requires closed-loop control of combustion phasing for reliable operation. Variable valve actuation (VVA) has previously been shown to enable cycle-to-cycle, cylinderindividual control with high precision, but suffers from a narrow operating range. Adding variable exhaust gas recirculation (EGR) to the closed-loop control structure can extend the operating range. A mid-ranging control structure is presented here for combined VVA and EGR actuations in a multi-cylinder engine. The control structure is simple to implement and preserves the fast, cylinderindividual, and precise actuation of the VVA system while extending the operating range. Experimental results verify the performance of the control structure.

Original languageEnglish (US)
Title of host publication5th IFAC Symposium on Advances in Automotive Control, AAC 2007
Pages501-508
Number of pages8
EditionPART 1
StatePublished - Dec 1 2007
Event5th IFAC Symposium on Advances in Automotive Control, AAC 2007 - Aptos, CA, United States
Duration: Aug 20 2007Aug 22 2007

Publication series

NameIFAC Proceedings Volumes (IFAC-PapersOnline)
NumberPART 1
Volume5
ISSN (Print)1474-6670

Other

Other5th IFAC Symposium on Advances in Automotive Control, AAC 2007
CountryUnited States
CityAptos, CA
Period08/20/0708/22/07

Keywords

  • EGR
  • HCCI
  • Mid-ranging control
  • VVA

ASJC Scopus subject areas

  • Control and Systems Engineering

Fingerprint Dive into the research topics of 'Closed-loop control of combustion phasing in an HCCI engine using VVA and variable EGR'. Together they form a unique fingerprint.

Cite this