Control of a turbo charged NVO HCCI engine using a model based approach

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

By using a turbo the operating range of the HCCI engine can be increased, but at the expense of increased controller complexity. The dynamics the turbo introduces in the intake and the exhaust manifolds, have a large impact on the in-cylinder mixture temperature, pressure and finally the combustion phasing. To compensate for this and to maintain desired combustion phasing, precise control of the negative valve overlap is required. A physical model is therefore developed and linearized to yield a state space model, used for Kalman filter and main feedback controller design. The original nonlinear model is inverted to provide feedforward. The main actuators for the controller are the intake and exhaust cam phasing, fuel amount and timing of the injections. The main sensor signals used by the controller are the cylinder pressure, intake exhaust pressure, and intake temperature. The model is validated against experimental data, simulated with the controller and finally the controller was tested on the real engine. The article shows the big picture of how a control system for a spray guided, turbo charged, negative valve overlap HCCI engine can be developed.

Details

Authors
Organisations
External organisations
  • GM Powertrain Sweden
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Energy Engineering

Keywords

  • Kalman filtering, Modeling, NVO, Simulation, Turbo HCCI
Original languageEnglish
Title of host publication2009 IFAC Workshop on Engine and Powertrain Control, Simulation and Modeling, E-COSM'09 - Final Report
Pages79-86
Number of pages8
Volume42
Edition26
Publication statusPublished - 2009
Publication categoryResearch
Peer-reviewedYes
Event2009 IFAC Workshop on Engine and Powertrain Control, Simulation and Modeling, E-COSM'09 - Rueil-Malmaison, France
Duration: 2009 Nov 302009 Dec 2

Publication series

NameIFAC Proceedings Volumes

Conference

Conference2009 IFAC Workshop on Engine and Powertrain Control, Simulation and Modeling, E-COSM'09
CountryFrance
CityRueil-Malmaison
Period2009/11/302009/12/02