2016-01-0617.pdf (1.74 MB)

Control-oriented dynamics analysis for electrified turbocharged diesel engines

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conference contribution
posted on 10.03.2017, 09:40 by Dezong Zhao, Edward Winward, Zhijia Yang, John Rutledge, Richard Stobart
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.

Funding

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).

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Aeronautical and Automotive Engineering

Published in

SAE Congress SAE Technical Papers

Volume

2016-April

Issue

April

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.

Publisher

© SAE International

Version

VoR (Version of Record)

Acceptance date

10/11/2015

Publication date

2016

Notes

Reprinted with permission SAE Copyright © 2017 SAE International. Further distribution of this material is not permitted without prior permission from SAE.

ISSN

0148-7191

Language

en

Location

Detroit, USA

Exports