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Title: Control-oriented dynamics analysis for electrified turbocharged diesel engines
Authors: Zhao, Dezong
Winward, Edward
Yang, Zhijia
Rutledge, John
Stobart, Richard
Keywords: Design processes
Downsizing
Electrical systems
Engine control systems
Turbochargers
Diesel / Compression Ignition engines
Issue Date: 2016
Publisher: © SAE International
Citation: ZHAO, D. ... et al, 2016. Control-oriented dynamics analysis for electrified turbocharged diesel engines. SAE World Congress and Exhibition, Detroit, USA, SAE Technical Paper, 2016-01-0617, doi:10.4271/2016-01-0617.
Abstract: Engine electrification is a critical technology in the promotion of engine fuel efficiency, among which the electrified turbocharger is regarded as the promising solution in engine downsizing. By installing electrical devices on the turbocharger, the excess energy can be captured, stored, and re-used. The electrified turbocharger consists of a variable geometry turbocharger (VGT) and an electric motor (EM) within the turbocharger bearing housing, where the EM is capable in bi-directional power transfer. The VGT, EM, and exhaust gas recirculation (EGR) valve all impact the dynamics of air path. In this paper, the dynamics in an electrified turbocharged diesel engine (ETDE), especially the couplings between different loops in the air path is analyzed. Furthermore, an explicit principle in selecting control variables is proposed. Based on the analysis, a model-based multi-input multi-output (MIMO) decoupling controller is designed to regulate the air path dynamics. The dynamics analysis and controller are successfully validated through experiments and simulations.
Description: Reprinted with permission SAE Copyright © 2017 SAE International. Further distribution of this material is not permitted without prior permission from SAE.
Sponsor: This work was co-funded by the Technology Strategy Board (TSB) UK, under a grant for the Low Carbon Vehicle IDP4 Programme (TP14/LCV/6/I/BG011L).
Version: Published
DOI: 10.4271/2016-01-0617
URI: https://dspace.lboro.ac.uk/2134/24356
Publisher Link: http://dx.doi.org/10.4271/2016-01-0617
ISSN: 0148-7191
Appears in Collections:Conference Papers and Presentations (Aeronautical and Automotive Engineering)

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