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

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Author

Summary, in English

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.

Publishing year

2005

Language

English

Publication/Series

SAE Technical Papers 2005-01-0147

Document type

Conference paper

Publisher

SAE

Topic

  • Control Engineering
  • Other Mechanical Engineering

Status

Published

Project

  • HCCI Control

ISBN/ISSN/Other

  • ISSN: 0148-7191