NDLI: System analysis and optimization of Variable Geometry Compressor for turbocharged diesel engines

Content Provider	IEEE Xplore Digital Library
Author	Junqiang Zhou Fiorentini, L. Chiara, F. Canova, M.
Copyright Year	2013
Description	Author affiliation: Center for Automotive Res., Ohio State Univ., Columbus, OH, USA (Junqiang Zhou; Fiorentini, L.; Chiara, F.; Canova, M.)
Abstract	Variable Geometry Compressors (VGC) have been recently considered as a solution for downsized, turbocharged engines to improve the stability of the compressor and increase its efficiency at low engine speed without compromising the operation at peak loads. This paper presents a system analysis of the air path dynamics of an automotive Diesel engine equipped with exhaust gas recirculation (EGR) variable geometry turbine (VGT) and VGC system. Starting from a validated model of the engine air path dynamics, a reduced-order model is designed to facilitate system analysis and control design. Then, a study of the steady-state and dynamic response of the air path system is conducted to understand the combined influence of the EGR-VGT-VGC actuators on the performance and transient behavior of the system. Finally, a multivariable optimization is performed to define a simple open-loop control strategy for the air path system. The work shown in this paper is intended as a preliminary study for the design of feedback control algorithms, which coordinate the available actuators to optimize the engine performance and the stability of the compressor.
Starting Page	5219
Ending Page	5224
File Size	780655
Page Count	6
File Format	PDF
ISBN	9781479901777
ISSN	07431619
e-ISBN	9781479901784
DOI	10.1109/ACC.2013.6580650
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-17
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	American Automatic Control Council(AACC)
Subject Keyword	Atmospheric modeling Engines Surges Silicon Mathematical model Actuators Optimization
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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