Scaling Functions for the Simulation of Different SI-Engine Concepts in Conventional and Electrified Power Trains Dipl.-Ing. Michael Huß – BMW Group (05/2007 – 04/2010) Prof. Dr.-Ing Georg Wachtmeister – LVK TU München GT-SUITE Users Conference Frankfurt, October 25, 2010
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Scaling Functions for the Simulation of Different SI ... · SI-Engine Concepts in Conventional and Electrified Power Trains ... (bore as scaling factor) • various engine concepts:
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Scaling Functions for the Simulation of Different SI-Engine Concepts in Conventional and Electrified Power Trains
Dipl.-Ing. Michael Huß – BMW Group (05/2007 – 04/2010)Prof. Dr.-Ing Georg Wachtmeister – LVK TU München
GT-SUITE Users ConferenceFrankfurt, October 25, 2010
Michael Huß25.10.2010Page 2
� Motivation
� Scaling of SI-engines
• approach
• engine definition
• scaling procedure
• database of parameter variations
• scaling functions
� Scaling examples and applications
� Conclusion
Agenda
Michael Huß25.10.2010Page 3
Motivation
� Rising pressure on carmakers to reduce fuel consumption and emissions: Climate change, finiteness of oil, policy,
customer demands
� Promising technologies for SI-engines:• small, turbocharged engines
• highly variable engines
• lowering mechanical losses
� What is the right size and concept of ICE and EM in a HEV?