Term of Award

Summer 2011

Degree Name

Master of Science in Applied Engineering (M.S.A.E.)

Document Type and Release Option

Thesis (open access)

Department

Department of Mechanical Engineering

Committee Chair

Frank Goforth

Committee Member 1

Valentin A. Soloiu

Committee Member 2

Yan Wu

Abstract

Full engine control can only be accomplished with multi-input multi-output (MIMO) control system requiring measurement of variables for which no sensor/instrument is yet available in the Renewable Energy and Engines Laboratory, therefore a less detailed single input single output (SISO) engine model is developed. To develop the engine controller a model of the engine had to first be determined. Known Discrete-Event and Mean-Value models were the first choice, but could not be utilized because of the nature of the single cylinder intake manifold pressure. Therefore an engine model based on experimental data had to be developed. Using Matlab/ Simulink, xPC Target and data acquisition hardware a model of the single cylinder engine was developed. These models were developed by taking measurements of the engines dynamics such as engine speed, crank angle, air mass intake, spark timing, injection timing, and intake temperatures at different engine speed set points while running gasoline and then a gasoline and ethanol mix (E85). From which experimental coefficients were determined necessary for the model.

Share

COinS