ERA

Download the full-sized PDF of Electromagnetic Variable Valve Timing on a Single Cylinder Engine in HCCI and SIDownload the full-sized PDF

Analytics

Share

Permanent link (DOI): https://doi.org/10.7939/R3Z131

Download

Export to: EndNote  |  Zotero  |  Mendeley

Communities

This file is in the following communities:

Graduate Studies and Research, Faculty of

Collections

This file is in the following collections:

Theses and Dissertations

Electromagnetic Variable Valve Timing on a Single Cylinder Engine in HCCI and SI Open Access

Descriptions

Other title
Subject/Keyword
SI
HCCI
Valve Timing
Electromagnetic
Knock
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Mashkournia, Masoud
Supervisor and department
Dr. Charles Koch (Mechanical Engineering)
Dr. Rudolf Seethaler (Mechanical Engineering from UBC Okanagan)
Examining committee member and department
Dr. Jason Olfert (Mechanical Engineering)
Dr. Bob Hayes (Chemical Engineering)
Department
Department of Mechanical Engineering
Specialization

Date accepted
2012-06-14T15:30:06Z
Graduation date
2012-11
Degree
Master of Science
Degree level
Master's
Abstract
An experimental single cylinder engine with variable valve timing is used to study spark ignition and homogeneous charge compression ignition (HCCI). The discrete wavelet transform, on a single cylinder engine with a cam-phasing head, is used in real time for knock detection in HCCI. Classical control schemes are used by modulating fuel octane number to show real time knock control is possible with this detection scheme. The cam-phasing head is replaced with a electromagnetic variable valve timing head and stable spark ignition (SI) and HCCI operating points are found. The robustness of the valve controller is shown by making cycle by cycle switches of valve timing events in SI and HCCI. The effect of heat on the valves from operating in SI is shown to affect valve performance. A valve motion controller, which was designed and developed as a model in simulation, has been installed on a single cylinder engine and tested. The resulting valve motion control works well providing both a robust single cylinder test system with flexible valve timing and also a simulation test bed to develop valve motion control algorithms.
Language
English
DOI
doi:10.7939/R3Z131
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
Citation for previous publication

File Details

Date Uploaded
Date Modified
2014-05-01T00:32:42.727+00:00
Audit Status
Audits have not yet been run on this file.
Characterization
File format: pdf (Portable Document Format)
Mime type: application/pdf
File size: 8551375
Last modified: 2015:10:12 15:07:35-06:00
Filename: MMthesis.pdf
Original checksum: 335b1b8d7242803c24edfa2da64089ba
Well formed: true
Valid: false
Status message: Improperly formed date offset=8513669
File title: Introduction
Page count: 129
Activity of users you follow
User Activity Date