A method for predicting performance improvements with effective cycle-to-cycle control of highly dilute spark ignition engine combustion

B. C. Kaul, J. B. Vance, J. A. Drallmeier, J. Sarangapani

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

Dilute spark ignition engine combustion offers a promising method of improving fuel efficiency and reducing engine-out emissions and yet is not currently feasible owing to high levels of cyclic variability under highly dilute homogeneous operation. The deterministic nature of the undesirable cycle-to-cycle variations in combustion heat release implies that appropriate control schemes should yield significant reductions in cyclic variability, making it possible to use higher levels of charge dilution in production engines. A novel analysis approach is used to predict the improvement in fuel conversion efficiency that could be expected with effective control. Additionally, this analysis gives some insight into the effect of spark timing on the dynamics and controllability of the system.

Original languageEnglish
Pages (from-to)423-438
Number of pages16
JournalProceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering
Volume223
Issue number3
DOIs
StatePublished - Mar 1 2009
Externally publishedYes

Keywords

  • Cycle-to-cycle control
  • Dilute spark ignition engine combustion
  • Fuel efficiency
  • Performance improvement

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