HCCI Cycle-by-cycle combustion phase control based on ion current technology in GDI engine

Zhiyong Zhang*, Liguang Li, Robert Dibble

*Corresponding author for this work

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

2 Scopus citations

Abstract

Homogenous charge compression ignition gains attention increasingly because of its high efficiency and low emissions. The combustion phase control has been one of the key technological issues which affect its industrialization of HCCI combustion technology. In recent years, ion current detection technology gains more and more attention due to its simple structure, low cost and its containing of large information of combustion. The signal can be used to detect combustion state and to realize closed-loop control of combustion process according to certain strategies. In this paper, the cycle-by-cycle control strategy of combustion phase was established, employed ion current signals and flexible injection strategy of GDI engine. According to ion current signal phase features in two preceding cycles, fuel amount injected in the next cycle will be adjusted to stabilize combustion. The experiments were done based on a GDI-HCCI test bench. The results show the first injection has obvious effect on both combustion and ion current signal phases. The fuel amount injected in the next cycle can be regulated by first injection. CA50 can be predicted by ion current signal difference dImin. The combustion phase can be controlled within 2 CA. The maximum concentration of HC decreased from 18,000 to 4,000 ppm after combustion phase control was applied. The issue of this study is that fuel amount injected need to be calibrated in different work conditions. The detection circuit needs to be optimized because the signal is a little weak under direct injection method.

Original languageEnglish (US)
Title of host publicationProceedings of the FISITA 2012 World Automotive Congress
Pages119-133
Number of pages15
EditionVOL. 1
DOIs
StatePublished - Jul 4 2013
EventFISITA 2012 World Automotive Congress - Beijing, China
Duration: Nov 27 2012Nov 30 2012

Publication series

NameLecture Notes in Electrical Engineering
NumberVOL. 1
Volume189 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Other

OtherFISITA 2012 World Automotive Congress
CountryChina
CityBeijing
Period11/27/1211/30/12

Keywords

  • Closed-loop control
  • Combustion phase
  • Cycle by cycle
  • Gasoline direct injection
  • Homogenous charge compression ignition

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

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