The gas exchange process in a modern diesel engine is generally modeled using manufacturer-provided performance maps that describe mass flows through, and efficiencies of, the turbine and compressor. These maps are typically implemented as look-up tables requiring multiple interpolations based on pressure ratios across the turbine and compressor, as well as the turbocharger shaft speed. In the case of variable-geometry turbochargers, the nozzle position is also an input to these maps. This method of interpolating or extrapolating data is undesirable when modeling for estimation and control, and though there have been several previous efforts to reduce dependence on turbomachinery maps, many of these approaches are complex and not easily implemented in engine control systems. As such, the aim of this paper is to reduce turbocharger maps to analytical functions for models amenable to estimation and control.
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ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control
October 31–November 2, 2011
Arlington, Virginia, USA
Conference Sponsors:
- Dynamic Systems and Control Division
ISBN:
978-0-7918-5476-1
PROCEEDINGS PAPER
Turbocharger Map Reduction for Control-Oriented Modeling Available to Purchase
Karla Stricker,
Karla Stricker
Purdue University, West Lafayette, IN
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Lyle Kocher,
Lyle Kocher
Purdue University, West Lafayette, IN
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Ed Koeberlein,
Ed Koeberlein
Purdue University, West Lafayette, IN
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D. G. Van Alstine,
D. G. Van Alstine
Purdue University, West Lafayette, IN
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Greg Shaver
Greg Shaver
Purdue University, West Lafayette, IN
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Karla Stricker
Purdue University, West Lafayette, IN
Lyle Kocher
Purdue University, West Lafayette, IN
Ed Koeberlein
Purdue University, West Lafayette, IN
D. G. Van Alstine
Purdue University, West Lafayette, IN
Greg Shaver
Purdue University, West Lafayette, IN
Paper No:
DSCC2011-5992, pp. 619-626; 8 pages
Published Online:
May 5, 2012
Citation
Stricker, K, Kocher, L, Koeberlein, E, Van Alstine, DG, & Shaver, G. "Turbocharger Map Reduction for Control-Oriented Modeling." Proceedings of the ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control. ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control, Volume 2. Arlington, Virginia, USA. October 31–November 2, 2011. pp. 619-626. ASME. https://doi.org/10.1115/DSCC2011-5992
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