Microphones and knock sensors for feedback control of HCCI engines

Jason S. Souder*, J. Hunter Mack, J. Karl Hedrick, Robert Dibble

*Corresponding author for this work

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

15 Scopus citations

Abstract

Homogeneous charge compression ignition (HCCI) engines lack direct in-cylinder mechanisms, such as spark plugs or direct fuel injection, for controlling the combustion timing. Many indirect methods have been used to control the combustion timing in an HCCI engine. With any indirect method, it is important to have a measure of the combustion timing so the control inputs can be adjusted for the next cycle. In this paper, it is shown that microphones and knock sensors can be used to detect combustion in HCCI engines. The output from various microphones and a knock sensor on an HCCI engine are measured at light and high loads. The combustion timing data obtained from the sensors are compared to the combustion timing data obtained from a piezoelectric cylinder pressure transducer. One of these sensors is selected and used for closed-loop control of the combustion timing in a single cylinder HCCI engine.

Original languageEnglish (US)
Title of host publicationProceedings of the 2004 Fall Technical Conference of the ASME Internal Combustion Engine Division
Pages77-84
Number of pages8
StatePublished - Dec 1 2004
EventFall Technical Conference of the ASME International Combustion Engine Division - Long Beach, CA, United States
Duration: Oct 24 2004Oct 27 2004

Publication series

NameProceedings of the 2004 Fall Technical Conference of the ASME Internal Combustion Engine Division

Other

OtherFall Technical Conference of the ASME International Combustion Engine Division
CountryUnited States
CityLong Beach, CA
Period10/24/0410/27/04

ASJC Scopus subject areas

  • Engineering(all)

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