Closed-Loop Control of an HCCI Engine

Jan-Ola Olsson, Per Tunestål, Bengt Johansson

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This paper presents a strategy for closed-loop control of a multi-cylinder turbocharged Homogeneous Charge Compression Ignition (HCCI) engine. A dual fuel port injection system allows control of combustion timing and load individually for each cylinder. The two fuels used are isooctane and n-heptane, which provides a wide range of autoignition properties.

Cylinder pressure sensors provide feedback and information regarding combustion. The angle of 50% heat release is calculated in real time for each cycle and used for timing feedback.

Inlet air preheating is used at low loads to maintain a high combustion efficiency.
Original languageEnglish
Pages (from-to)1076-1085
JournalSAE Transactions, Journal of Engines
Issue number3
Publication statusPublished - 2001
EventSAE World Congress, 2001 - Detroit, MI, United States
Duration: 2001 Mar 52001 Mar 8

Subject classification (UKÄ)

  • Energy Engineering


  • Control
  • Combustion
  • HCCI
  • Engine


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