Degree Type
Thesis
Date of Award
2013
Degree Name
Master of Science
Department
Electrical and Computer Engineering
First Advisor
Ratnesh Kumar
Abstract
As diesel engine emissions standards become increasingly stringent, one of the most commonly employed method of emissions reduction by engine manufacturers is active control of inducted air and recirculated exhaust gas (EGR). Most often actuators such as an EGR valve and a variable geometry turbocharger (VGT) are used to manipulate the air flow through a diesel engine to provide the reduced engine out emissions. This paper evaluates four different multivariable controller designs for control of a diesel engine air path: three built up from Single Input, Single Output (SISO) transfer functions and one that is a fully multivariable design. Various performance metrics are analyzed to gauge the relative difference in performance capability while maintaining a simple controller architecture. As part of the analysis, the controller designs are simulated with a realistic non-linear engine model against a modified standard certification test cycle to give a sense of how the controllers would perform in a real-world application.
Copyright Owner
Daniel Albert Humke
Copyright Date
2013
Language
en
File Format
application/pdf
File Size
120 pages
Recommended Citation
Humke, Daniel Albert, "Analysis of multivariable controller designs for diesel engine air system control" (2013). Graduate Theses and Dissertations. 13086.
https://lib.dr.iastate.edu/etd/13086
