Virtual Multi-Cylinder Engine Transient Test System

Researchers at the Powertrain Control Research Laboratory (PCRL) at the University of Wisconsin-Madison have developed a transient test system for single-cylinder engines that accurately replicates the dynamics of a multi-cylinder engine. The overall system can perform very rapid transients in exces...

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Bibliographic Details
Published in:SAE International Journal of Fuels and Lubricants 2010, Vol.2 (2), p.346-353, Article 2009-24-0106
Main Authors: Moskwa, John J, Mangun, Derek A, Lemke, Austin R, Lahti, John L, Snyder, Matthew W, Klick, Stephen J
Format: Article
Language:English
Subjects:
Air pressure
Coolants
Cylinders
Engine cylinders
Engine design
Engines
Fuels
Gas dynamics
Heat transfer
Powertrain
Test systems
Trajectories
Citations: Items that this one cites
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Summary:Researchers at the Powertrain Control Research Laboratory (PCRL) at the University of Wisconsin-Madison have developed a transient test system for single-cylinder engines that accurately replicates the dynamics of a multi-cylinder engine. The overall system can perform very rapid transients in excess of 10,000 rpm/second, and also replicates the rotational dynamics, intake gas dynamics, and heat transfer dynamics of a multi-cylinder engine. Testing results using this system accurately represent what would be found in the multi-cylinder engine counterpart. Therefore, engine developments can be refined to a much greater degree at lower cost, and these changes directly incorporated in the multi-cylinder engine with minimal modification. More importantly, various standardized emission tests such as the cold-start, FTP or ETC, can be run on this single-cylinder engine. These tests are currently only run using multi-cylinder engines, so this moves these important tests more than a year forward in the engine development cycle, and represents a significant competitive advantage. Many other advantages of this new system will be discussed in the paper.
ISSN:1946-3952
1946-3960
1946-3960
DOI:10.4271/2009-24-0106