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Variable Valve Actuation for Timing Control of a Homogeneous Charge Compression Ignition Engine

Publiceringsår: 2005
Språk: Engelska
Publikation/Tidskrift/Serie: Homogeneous Charge Compression Ignition (HCCI) Combustion 2005
Dokumenttyp: Del av eller Kapitel i bok
Förlag: SAE


Autoignition of a homogeneous mixture is very sensitiveto operating conditions. Therefore fast combustion phasingcontrol is necessary for reliable operation. There areseveral means to control the combustion phasing of a Homogeneous Charge Compression Ignition (HCCI) engine.This paper presents cycle-to-cycle cylinder individual controlresults from a six-cylinder HCCI engine using a VariableValve Actuation (VVA) system. As feedback signal,the crank angle for 50% burned, based on cylinder pressure,is used. Three control structures are evaluated,Model Predictive Control (MPC), Linear Quadratic Gaussiancontrol (LQG) and PID control. In the control designof the MPC and LQG controller, dynamic models obtainedby system identication were used. Successful experimentswere performed on a port-injected six-cylinderheavy-duty Diesel engine operating in HCCI mode.


  • Other Mechanical Engineering
  • Control Engineering


  • ISBN: 0-7680-1608-8

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