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HCCI Engine Modeling and Control using Conservation Principles

Blom, Daniel (2007) In MSc Theses
Department of Automatic Control
Abstract
The aim of the thesis is to model engine physics and dynamics and to design controllers based on the physical model. By implementing equations and solving them it's possible to describe the major phenomena in a four stroke engine running in HCCI mode. To describe the cycle-tocycle connection in the model a wall temperature model was introduced. This wall model is used to simulate the engine dynamics and a relation between wall temperature and combustion phasing has been shown. By using variable valve timings on the inlet valves and variable inlet temperature as actuators a controller was designed based on the model. Control strategies based on the wall model helped to understand how the engine reacts on different input signals. A... (More)
The aim of the thesis is to model engine physics and dynamics and to design controllers based on the physical model. By implementing equations and solving them it's possible to describe the major phenomena in a four stroke engine running in HCCI mode. To describe the cycle-tocycle connection in the model a wall temperature model was introduced. This wall model is used to simulate the engine dynamics and a relation between wall temperature and combustion phasing has been shown. By using variable valve timings on the inlet valves and variable inlet temperature as actuators a controller was designed based on the model. Control strategies based on the wall model helped to understand how the engine reacts on different input signals. A LQG-controller was implemented and it was able to manage both reference steps and stationary control of the combustion phasing. (Less)
Please use this url to cite or link to this publication:
author
Blom, Daniel
supervisor
organization
year
type
H3 - Professional qualifications (4 Years - )
subject
publication/series
MSc Theses
report number
TFRT-5798
ISSN
0280-5316
language
English
id
8847737
date added to LUP
2016-03-17 13:08:57
date last changed
2016-03-17 13:08:57
@misc{8847737,
  abstract     = {The aim of the thesis is to model engine physics and dynamics and to design controllers based on the physical model. By implementing equations and solving them it's possible to describe the major phenomena in a four stroke engine running in HCCI mode. To describe the cycle-tocycle connection in the model a wall temperature model was introduced. This wall model is used to simulate the engine dynamics and a relation between wall temperature and combustion phasing has been shown. By using variable valve timings on the inlet valves and variable inlet temperature as actuators a controller was designed based on the model. Control strategies based on the wall model helped to understand how the engine reacts on different input signals. A LQG-controller was implemented and it was able to manage both reference steps and stationary control of the combustion phasing.},
  author       = {Blom, Daniel},
  issn         = {0280-5316},
  language     = {eng},
  note         = {Student Paper},
  series       = {MSc Theses},
  title        = {HCCI Engine Modeling and Control using Conservation Principles},
  year         = {2007},
}