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Stephan Schmidt

Dipl.-Ing. Dr.techn.

19982022
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Research Output 1999 2018

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Conference contribution
2004

Development of a Combustion Process for a High Performance 2-Stroke Engine with High Pressure Direct Injection

Schmidt, S., Winkler, F., Schögl, O. & Pontoppidan, M., 2004, Powertrain&Fluid Systems Conference 2004. Warrendale, Pa. : Society of Automotive Engineers: Society of Automotive Engineers, Vol. 1895. p. XX-XX (SAE-SP).

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Exploration of CFD Data in a Virtual Reality Setup

Grabner, M., Bornik, A., Schmidt, S., Reitinger, B., Schögl, O. & Garrido, M. L. M., 2004, (Submitted) Virtual Product Development in Automotive Engineering. .

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

GDI with High-Performance 2-Stroke Application: Concepts, Experiences and Potential for the Future

Schmidt, S., Eichlseder, H., Kirchberger, R., Nimmervoll, P., Ohrnberger, G. & Wagner, M., 2004, SETC 2004 Small Engine & Technology Congress. SAE, p. xx-xx

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2005

Die thermodynamische Analyse des schnell laufenden Zweitaktmotors mit innerer Gemischbildung

Schmidt, S., Kirchberger, R., Eichlseder, H., Margelik, R., Rothbauer, R. & Almbauer, R., 2005, Der Arbeitsprozess der Verbrennungsmotors. Graz: ., p. 397-414

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Entwicklungsmethodiken bei der Konzeptentwicklung von neuartiger Brennverfahren

Eichlseder, H., Schmidt, S. & Rothbauer, R., 2005, Optimierung komplexer Antriebsstränge - die Herausforderung der Zukunft. Mainz: ., p. 142-163

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Novel Visualization and Interaction Techniques for Gaining Insight into Fluid Dynamics in Internal Combustion Engines

Schmidt, S., Schögl, O., Kirchberger, R., Doleisch, H., Muigg, P., Hauser, H., Grabner, M., Bornik, A. & Schmalstieg, D., 2005, Engineering Simulation Proceedings. GB: ., p. 123-123

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Predictive Simulation Strategies for the 2-Stroke Scavenging Process within the Scope of the Development Process

Rothbauer, R., Margelik, R., Aslam, M. T., Almbauer, R., Schmidt, S. & Glinsner, K., 2005, SETC 2005 Small Engine & Technology Conference. SAE, p. xx-xx

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Strategies to Reduce Scavenge Losses of Small Capacity 2-Stroke Engines, Pressurized by the Common Market Costs

Winkler, F., Kirchberger, R., Schögl, O. & Schmidt, S., 2005, SAE SETC 2005. ., p. 1-10

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2006

A Multidimensional Inferface for the Predictive CFD Simulation of the 2-Stroke Enginge

Rothbauer, R., Almbauer, R., Schmidt, S., Margelik, R. & Glinser, K., 2006, JSAE Annual Congress. ., p. ---

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Effect of Energy Conversion, Turbulence and Fluid Dynamics on the Transient Heat Transfer and thus on the Scavenging of the Two Stroke Engine

Rothbauer, R., Almbauer, R., Schmidt, S., Margelik, R. & Glinser, K., 2006, Turbulence, Heat and Mass Transfer 5. ., p. ---

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2007

An Integrated 3D CFD Simulation Methodology for the Optimization of the Mixture Preparation of

Schmidt, S., Schögl, O., Rothbauer, R., Eichlseder, H. & Kirchberger, R., 2007, Small Engine Technology Conference 2007. ., p. 1-1

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2008

CFD Simulation of a Real World High-Performance Two Stroke Engine with Use of a Multidimensional Coupling Methodology

Jajcevic, D., Almbauer, R., Schmidt, S. & Glinsner, K., 2008, Small Engine Technology Conference & Exhibition. ., p. 1-17

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2009

CFD Simulation of a High Performance Two Stroke Engine and Reduction of Computational Time Using Multidimensional Coupling Methodology

Jajcevic, D., Almbauer, R. & Schmidt, S., 2009, DEMI 2009. ., p. 481-486

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Early stage development of a 4-stroke gas exchange process by the use of a coupled 1D / 3D simulation strategy

Schögl, O., Schmidt, S., Abart, M., Kirchberger, R., Fitl, M. & Gschwantner, P., 2009, SETC 2009 Proceedings. ., p. 1-12

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Simulation and experimental investigations of a direct-injection combustion system for high speed – high performance engines

Schmidt, S., Abart, M., Schögl, O., Jajcevic, D., Trattner, A., Kirchberger, R. & Eichlseder, H., 2009, SETC 2009 Proceedings. ., p. 1-12

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Simulation of Scavenging Process, Internal Mixture Preparation, and Combustion of a Gasoline Direct Injection Two-Cylinder Two-Stroke Engine

Jajcevic, D., Almbauer, R., Schmidt, S. & Karl, G., 2009, SETC 2009. ., p. 1-10

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Simulation Strategy and Analysis of a Two-Cylinder Two Stroke Engine Using CFD Code Fluent

Jajcevic, D., Almbauer, R., Schmidt, S. & Karl, G., 2009, Simulation for Innovative Design. ., p. 235-246

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Symmetry and Time Delayed Boundary Condition for CFD Simulation and its Application in a Two-Cylinder Two-Stroke Engine

Jajcevic, D., Almbauer, R., Schmidt, S. & Karl, G., 2009, SETC 2009. ., p. 1-8

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2010

Brennverfahrenskonzept für Niederdruck Benzin-Direkt-Einspritzung

Schmidt, S., Trattner, A., Schögl, O., Kirchberger, R., Eichlseder, H., Joyce, M. & Wall, J., 2010, Aachener Kolloquium Fahrzeug- und Motorentechnik. Aachen: Springer-VDI-Verlag GmbH & Co.KG, p. 1269-1292

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

CFD study of spray design for a GDI high performance 2-stroke engine

Jajcevic, D., Almbauer, R., Karl, G., Matthias, F. & Schmidt, S., 2010, SAE Paper No. 2010-32-0014, JSAE 20109014. ., p. xx-yy

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Einfluss des Hub- Bohrungsverhältnisses und der Einlasskanalgeometrie auf Ladungsbewegung und Gemischbildung bei BDE-Ottomotoren

Schmidt, S., Trattner, A., Abart, M., Schögl, O., Kirchberger, R. & Eichlseder, H., 2010, 9. Internationale Symposium für Verbrennungsdiagnostik. Mainz: ., p. 7-19

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

Exhaust system aimulation of a 2-cylinder 2-stroke engine including heat transfer effects

Jajcevic, D., Almbauer, R., Karl, G., Matthias, F. & Schmidt, S., 2010, SAE Paper No. 2010-32-0035, JSAE 20109035. ., p. xx-yy

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Investigations on Low Pressure Gasoline Direct Injection for a standard GDI combustion system SAE 2010-32-0094

Schmidt, S., Trattner, A., Kirchberger, R., Eichlseder, H., Wall, J. & Joyce, M., 2010, Small Engine Technology Congress SETC 2010. SAE, p. XX-XX

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Possibilities and limits of 1D CFDE simulation methodology for the layout of 2-stroke GDI combustion systems

Schögl, O., Schmidt, S., Abart, M., Zinner, C. & Kirchberger, R., 2010, SAE Paper No. 2010-32-0017, JSAE 20109017. ., p. xx-yy

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Reed valve CFD simulation of a 2-stroke engine using a 2D model including the complete engine geometry

Jajcevic, D., Almbauer, R., Karl, G., Matthias, F. & Schmidt, S., 2010, SAE Paper No. 2010-32-0015, JSAE 20109015. ., p. xx-yy

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Study of possible rage extender concepts with respect to future emission limits

Ebner, A., Winkler, F., Abart, M., Luz, R., Kirchberger, R., Schmidt, S. & Eichlseder, H., 2010, SAE Paper No. 2010-32-0129, JSAE 20109129. ., p. xx-yy

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2011

A methodical approach for thermal management simulation of hybrid powersport application

Schmidt, S., Rieger, P., Trattner, A., Kirchberger, R., Dutzler, C. & Heizinger, G., 2011, 17th Small Engine Technology Conference / Diversity of Small Powertrain Technologies. ., p. 1-11

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Charging and Powersport for Motorcycles: a contradiction?

Zinner, C., Schögl, O., Abart, M., Schmidt, S., Leiber, S. & Schabetsberger, T., 2011, 17th Small Engine Technology Conference / Diversity of Small Powertrain Technologies. SAE, p. 1-10 (SAE Paper No. 2011-32-9585).

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Design of a tumble-orientated intake port layout for a gasoline combustion process used in power sport application

Schögl, O., Edtmayer, H., Schmidt, S., Leiber, S. & Schabetsberger, T., 2011, Small Engine Technology Conference & Exhibition. ., p. 1-1

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Novel range extender concepts for 2025 with regard to small engine technologies

Trattner, A., Pertl, P., Schmidt, S. & Sato, T., 2011, 17th Small Engine Technology Conference / Diversity of Small Powertrain Technologies. SAE, p. 1-18

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2012

Die bedeutende Rolle des variablen Ventiltriebes bei einem Motorkonzept mit erweiterter Expansion über den Kurbeltrieb

Trattner, A., Pertl, P., Abis, A., Schmidt, S., Kirchberger, R., Eichlseder, H. & Sato, T., 2012, MTZ-Fachtagung Ladungswechsel im Verbrennungsmotor. Wiesbaden: Springer Vieweg, p. 1-18

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

Expansion to Higher Efficiency - Investigations of the Atkinson Cycle in Small Combustion Engines

Pertl, P., Trattner, A., Abis, A., Schmidt, S., Kirchberger, R. & Sato, T., 2012, Small Engine Technology Conference & Exhibition. ., p. xx-xx

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Fundamental Investigations on the Boost Pressure Control System of Charged Aircraft Engines in the Aviation Class ELA1 / Approved Systems Versus New Solutions

Stelzl, R., Schmidt, S., Kirchberger, R., Dopona, M., Foxhall, N. & Wukisiewitsch, W., 2012, Small Engine Technology Conference. ., p. 1-1

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Future Engine Technology in Hand-Held Power Tools

Trattner, A., Schmidt, S., Kirchberger, R., Eichlseder, H., Kölmel, A., Raffenberg, M. & Gegg, T., 2012, (Accepted/In press) 2012 Small Engine Technology Conference & Exhibition. ., (SAE Paper No. 2012-32-0111).

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

High pressure direct injection - a future technology for high-performance motorcycles?

Trattner, A., Schmidt, S., Schögl, O., Kirchberger, R. & Eichlseder, H., 2012, Development Trends of Motorcycles. ., p. 45-60

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

Layout of a Charged Power Sport Engine

Zinner, C., Stelzl, R., Schmidt, S., Leiber, S. & Schabetsberger, T., 2012, (Accepted/In press) 2012 Small Engine Technology Conference & Exhibition. ., (SAE Paper No. 2012-32-0069).

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Range Extender for Two-Wheeler Applications

Schacht, H-J., Kirchberger, R., Winkler, F. & Schmidt, S., 18 Oct 2012, Development Trends of Motorcycles IV. expert verlag GmbH , Vol. IV.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

File
2013

Development of a Thermal Model within a Complete Vehicle Simulation for Motorcycles and Powersport Applications

Rieger, P., Girstmair, J., Schmidt, S., Almbauer, R. & Kirchberger, R., 2013, 19th Small Engine Technology Conference. ., p. 1-15

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Expansion to higher efficiency - Requirements on valve actuation for Atkinson cycle-based engines

Grassberger, H., Pertl, P., Trattner, A., Schmidt, S., Kirchberger, R. & Eichlseder, H., 2013, 13th Stuttgarter Int. Symposium "Automotive and Engine Technology". ., p. 129-143

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

Real World Operation of a Standard Lawn Mower Engine from a Scientific Perspective

Edtmayer, H., Trattner, A., Schmidt, S., Kirchberger, R., Trentini, J. & Weiglhofer, J., 2013, Small Engines Technology Conference 2013 / Measurement and Simulation. ., p. 1-15

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2014

Experimentelle Untersuchungen eines Ottomotors mit erweiterter Expansion über den Kurbeltrieb und die bedeutende Rolle der variablen Ventilsteuerung

Pertl, P., Trattner, A., Lang, M., Stelzl, R., Schmidt, S. & Kirchberger, R., 2014, Ladungswechsel im Verbrennungsmotor. Wiesbaden: Springer Vieweg, p. xx-xx

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

Extended Expansion Engine with Mono-Shaft Cam Mechanism for Higher Efficiency – Layout Study and Numerical Investigations of a Twin Engine

Pertl, P., Zojer, P., Lang, M., Schögl, O., Trattner, A., Schmidt, S., Kirchberger, R., Mavinahally, N. & Mavinahalli, V., 2014, Engine Technology. ., p. xx-xx

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Potential of fuel injection in two-stroke engines for hand-held power tools

Trattner, A., Schmidt, S., Kirchberger, R., Eichlseder, H., Kölmel, A., Gegg, T. & Meyer, S., 2014, Automotive and Engine Technology. Wiesbaden: Springer Vieweg, Vol. 2. p. 165-180

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearch

Potential of fuel injection of two-stroke engines for hand held power tools

Kölmel, A., Gegg, T., Meyer, S., Trattner, A., Schmidt, S., Kirchberger, R. & Eichlseder, H., 2014, 14. Stuttgarter Symposium. Wiesbaden: Springer Fachmedien, p. 165-180

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2015

Analyse und Bewertung der Arbeitsprozesse von Kleinmotoren

Trattner, A., Kupelwieser, F., Pertl, P., Schmidt, S. & Winkler, F., 2015, The Working Process of the Internal Combustion Engine. ., p. 1-16

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Expansion to Higher Efficiency – Experimental Investigations of the Atkinson Cycle in Small Combustion Engines

Pertl, P., Trattner, A., Stelzl, R., Lang, M., Schmidt, S. & Kirchberger, R., 2015, Engine Technology. ., p. xx-xx

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Thermodynamic Limits of Efficiency Enhancement of Small Displacement Single-Cylinder Engines

Trattner, A., Kupelwieser, F., Pertl, P., Winkler, F., Schmidt, S. & Kirchberger, R., 2015, Small Engine Technology Conference & Exhibition. ., p. 1-33

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

2016

Analysis of working processes and efficiency assessment of hand-held power tools

Meyer, S., Kölmel, A., Gegg, T., Dawin, U., Piecha, P., Trattner, A., Schmidt, S. & Kirchberger, R., 16 Mar 2016, 16. INTERNATIONALES STUTTGARTER SYMPOSIUM 2016.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Engines
Scavenging
Thermodynamics
Propulsion
Carburetors
2017

Enhanced Diagnosis for Small Engines

Basso, R., Schacht, H-J., Stephan, S., Kirchberger, R., Rath, M., Neumayer, M. & Reisenberger, C., 1 Nov 2017, JSAE/SAE Small Engine Technologies Conference & Exhibition.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Engines
Sensors
Engine cylinders
Starters
Signal analysis

Practicability and Influencing Factors of a Lean Burn Mode for Two-Stroke Engines in Hand-Held Powertools

Piecha, P., Ninaus, C., Schmidt, S., Kirchberger, R. & Schumann, F., 5 Nov 2017, SAE/JSAE Small Engine Technology Conference. SAE International

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review