Development of control-oriented charge mixing model and experimental validation using graphical analysis

Yongsoon Yoon, Zongxuan Sun, Shupeng Zhang, Guoming G. Zhu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

A two-zone control-oriented charge mixing model is developed to describe charge mixing with thermodynamic interaction between fresh charge and residual gas during the intake stroke. This work enables operating range of homogeneous charge compression ignition (HCCI) to be extended without loss of stability. Cylinder volume is divided into two zones with a fictitious divider. In the mixed zone, fresh charge and residual gas expelled from the unmixed zone are mixed homogeneously. Otherwise, the unmixed zone contains rest of the residual gas burned in the previous cycle and trapped by early close of exhaust valves. Incoming fresh charge with high speed expels some of residual gas from the unmixed zone to the mixed zone by force. In this perspective, mass transfer represents charge mixing between two zones. For model validation, optical engine test is carried out. Optical access to the engines with an infrared (IR) camera allows graphical analysis to estimate thermodynamic states of two zones.

Original languageEnglish (US)
Title of host publication2013 American Control Conference, ACC 2013
Pages4441-4446
Number of pages6
StatePublished - Sep 11 2013
Event2013 1st American Control Conference, ACC 2013 - Washington, DC, United States
Duration: Jun 17 2013Jun 19 2013

Publication series

NameProceedings of the American Control Conference
ISSN (Print)0743-1619

Other

Other2013 1st American Control Conference, ACC 2013
CountryUnited States
CityWashington, DC
Period6/17/136/19/13

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