Turbocharged Diesel Engine Modeling for Nonlinear Engine Control and State Estimation

[+] Author and Article Information
Minghui Kao, John J. Moskwa

Powertrain Control Research Laboratory, Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI 53706

J. Dyn. Sys., Meas., Control 117(1), 20-30 (Mar 01, 1995) (11 pages) doi:10.1115/1.2798519 History: Received March 31, 1993; Online December 03, 2007


Engine models that are used for nonlinear diesel engine control, state estimation, and model-based diagnostics are presented in this paper. By collecting, modifying, and adding to current available engine modeling techniques, two diesel engine models, a mean torque production model and a cylinder-by-cylinder model, are summarized for use in the formulation of control and state observation algorithms. In the cylinder-by-cylinder model, a time-varying crankshaft inertia model is added to a cylinder pressure generator to simulate engine speed variations due to discrete combustion events. Fuel injection timing and duration are control inputs while varying engine speed, cylinder pressure, and indicated torque are outputs from simulation. These diesel engine models can be used as engine simulators and to design diesel engine controllers and observers.

Copyright © 1995 by The American Society of Mechanical Engineers
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