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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/16318

Title: Optimal air and fuel-path control of a diesel engine
Authors: Yang, Zhijia
Keywords: Diesel engine
Air-path control
Fuel-path control
Emission control
Combustion control
Cylinder pressure
Emission model
Issue Date: 2014
Publisher: © Zhijia Yang
Abstract: The work reported in this thesis explores innovative control structures and controller design for a heavy duty Caterpillar C6.6 diesel engine. The aim of the work is not only to demonstrate the optimisation of engine performance in terms of fuel consumption, NOx and soot emissions, but also to explore ways to reduce lengthy calibration time and its associated high costs. The test engine is equipped with high pressure exhaust gas recirculation (EGR) and a variable geometry turbocharger (VGT). Consequently, there are two principal inputs in the air-path: EGR valve position and VGT vane position. The fuel injection system is common rail, with injectors electrically actuated and includes a multi-pulse injection mode. With two-pulse injection mode, there are as many as five control variables in the fuel-path needing to be adjusted for different engine operating conditions. [Continues.]
Description: A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy of Loughborough University.
Sponsor: none
URI: https://dspace.lboro.ac.uk/2134/16318
Appears in Collections:PhD Theses (Aeronautical and Automotive Engineering)

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Form-2014-Yang.pdf932.96 kBAdobe PDFView/Open
Thesis-2014-Yang.pdf7.19 MBAdobe PDFView/Open

 

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