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Research Abstracts Online
January 2009 - March 2010

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University of Minnesota Twin Cities
Institute of Technology
Department of Mechanical Engineering

PI: Zongxuan Sun

Control-oriented Mixing Model for Homogenous Charge Compression Ignition Engines

The objective of this research is to develop an accurate yet tractable dynamic model of charge mixing and SI (spark ignited) and HCCI (homogeneous charge compression ignition) hybrid combustion for internal combustion engines. The goal is to enable model-based real-time control and optimization of the SI-HCCI dual mode engine to significantly reduce automobile fuel consumption and emissions. The aim of the charge-mixing model is to model complex fluid mixing and chemical processes for use in real-time decisions making and control. The researchers use supercomputing resources to model the fluid motion using CFD software, which will guide the development of the control-oriented model. Chemical kinetics solvers will be used to model the evolution of chemical composition within the mixing model.

Previous work in this group involved the design of a miniature flow control valve to achieve an arbitrary stroke vs. flow relationship. The miniature valve was a critical component in a novel camless valve actuation system that was under investigation.

Group Members

Pradeep Kumar Gillella, Graduate Student
Matthew McCuen, Graduate Student