A control-oriented charge mixing and two-zone HCCI combustion model

Shupeng Zhang, Guoming Zhu, Zongxuan Sun

Research output: Contribution to journalArticle

21 Scopus citations

Abstract

A control-oriented engine model is often used in the hardware-in-the-loop (HIL) simulation environment for developing and validating the corresponding control strategies. For homogeneous charge compression ignition (HCCI) combustion, mixture heterogeneity should be considered in the control-oriented model to provide accurate combustion phase prediction. This paper describes a two-zone HCCI combustion model, where the in-cylinder charge is divided into the well-mixed and unmixed zones as the result of charge mixing. Simplified fluid dynamics is used to predict the residual gas fraction before the combustion phase starts, which defines the mass of the unmixed zone, during real-time simulations. The unmixed-zone size determines not only how well the in-cylinder charge is mixed, which affects the start of HCCI combustion, but also the resulting peak in-cylinder pressure and temperature during the combustion process. The developed model was validated in the HIL simulation environment. The HIL simulation results show that the proposed charge mixing and HCCI combustion model provides better agreement with the corresponding GT-Power simulation results than the previously developed one-zone model.

Original languageEnglish (US)
Article number6632949
Pages (from-to)1079-1090
Number of pages12
JournalIEEE Transactions on Vehicular Technology
Volume63
Issue number3
DOIs
StatePublished - Mar 2014

Keywords

  • Charge mixing
  • internal combustion engine
  • two-zone combustion model

Fingerprint Dive into the research topics of 'A control-oriented charge mixing and two-zone HCCI combustion model'. Together they form a unique fingerprint.

Cite this