Cycle-to-cycle control of a dual-fuel HCCI engine

Petter Strandh*, Johan Bengtsson, Rolf Johansson, Per Tunestål, Bengt Johansson

*Corresponding author for this work

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

65 Scopus citations

Abstract

A known problem of the HCCI engine is its lack of direct control and its requirements of feedback control. Today there exists several different means to control an HCCI engine, such as dual fuels, variable valve actuation, inlet temperature and compression ratio. Independent of actuation method a sensor is needed. In this paper we perform closed-loop control based on two different sensors, pressure and ion current sensor. Results showing that they give similar control performance within their operating range are presented. Also a comparison of two methods of designing HCCI timing controller, manual tuning and model based design is presented. A PID controller is used as an example of a manually tuned controller. A Linear Quadratic Gaussian controller exemplifies model based controller design. The models used in the design were estimated using system identification methods. The system used in this paper performs control on cycle-to-cycle basis. This leads to fast and robust control. Dual fuels with different octane numbers were used to control the combustion timing. The engine was a 12 liter 6 cylinder heavy-duty diesel engine modified with a port fuel injection system which has dual fuels connected.

Original languageEnglish (US)
Title of host publication2004 SAE World Congress
DOIs
StatePublished - Dec 1 2004
Event2004 SAE World Congress - Detroit, MI, United States
Duration: Mar 8 2004Mar 11 2004

Other

Other2004 SAE World Congress
CountryUnited States
CityDetroit, MI
Period03/8/0403/11/04

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering

Fingerprint

Dive into the research topics of 'Cycle-to-cycle control of a dual-fuel HCCI engine'. Together they form a unique fingerprint.

Cite this