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Stephan Schmidt

Dipl.-Ing. Dr.techn.

19982022
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Research Output 1999 2018

2018

Combustion Analysis with Residual Gas as a Design Parameter for Two-Stroke Engines

Piecha, P. R., Jandl, S., Sturm, S., Schmidt, S., Kirchberger, R. & Schumann, F., 30 Oct 2018, SAE/JSAE Small Engine Technology Conference. SAE International, SAE 2018-32-0045

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

Evaluation of measurement technologies for RDE and fuel consumption for two-wheeler-applications

Schmidt, S., Zinner, C., Hiesmayr, J., Kirchberger, R. & Eichlseder, H., 26 Jun 2018, 13th Int. AVL Symposium on Propulsion Diagnostics. 11 p.

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

Ion Current Comparison in Small, Fast Running Gasoline Engines for Non-Automotive Applications

Basso, R., Gruber, G., Piecha, P., Schacht, H-J., Schmidt, S. & Arenz, M., 1 Oct 2018, SAE/JSAE Small Engine Technology Conference. SAE International, 10 p.

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

Gasoline
Engines
Ions
Sensors
Electric current measurement

Overview of Different Gas Exchange Concepts for Two-Stroke Engines

Sturm, S., Schmidt, S. & Kirchberger, R., 30 Oct 2018, SAE/JSAE Small Engine Technology Conference. SAE International, SAE 2018-32-0041

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

2017

Comparison of Optimal & Real-time Operation Strategy for a Hybrid Electric Motorcycle

Rieger, P., Schweighofer, B., Wegleiter, H., Zinner, C., Schmidt, S., Kirchberger, R., Foxhall, N. & Hinterberger, W., 16 Nov 2017.

Research output: Contribution to conferencePaperResearchpeer-review

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

2016

Analysis of Conventional Motorcycles with the Focus on Hybridization

Rieger, P., Zinner, C., Schmidt, S. & Hausberger, S., 2016.

Research output: Contribution to conferencePaperResearchpeer-review

Motorcycles
Fuel consumption
Wheels
Powertrains
Passenger cars

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

Assessment of Minimum Fuel Consumption Operation Strategy for Hybrid Powersport Drivetrains by means of Dynamic Programming Method

Schweighofer, B., Wegleiter, H., Zisser, M., Rieger, P., Zinner, C. & Schmidt, S., 2016.

Research output: Contribution to conferencePaperResearchpeer-review

Dynamic programming
Fuel consumption
Energy management
Brakes
Engines

Evaporation and Cold Start Behavior of Bio-Fuels in Non-Automotive Applications

Jandl, S. A., Schacht, H-J., Schmidt, S., Dawin, U., Kölmel, A. & Leiber, S., 8 Nov 2016.

Research output: Contribution to conferencePaperResearchpeer-review

Experimental Investigations Regarding the Potential of an Electronic Ignition Timing Control for a Lawn Mower Engine

Zisser, M., Schacht, H-J., Stelzl, R., Schweighofer, B., Wegleiter, H., Schmidt, S., Trentini, J., Banzhaf, J-P. & Gegg, T., 8 Nov 2016.

Research output: Contribution to conferencePaperResearchpeer-review

Investigations and Analysis of Working Processes of Two-Stroke Engines with the Focus on Wall Heat Flux

Piecha, P., Bruckner, P., Schmidt, S., Kirchberger, R., Schumann, F., Meyer, S., Gegg, T. & Leiber, S., 8 Nov 2016.

Research output: Contribution to conferencePaperResearchpeer-review

2015

Advantages and Challenges of Lean Operation of Two-Stroke Engines for Hand-Held Power Tools

Trattner, A., Grassberger, H., Schögl, O., Schmidt, S., Kirchberger, R., Eichlseder, H., Kölmel, A., Meyer, S. & Gegg, T., 2015, In : SAE international journal of engines. 8, 1, p. 1-20

Research output: Contribution to journalArticleResearch

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

2014

Control of a Low Cost Range Extender for L1e Class PHEV Two-Wheelers

Schacht, H-J., Leibetseder, M., Bretterklieber, N., Schmidt, S. & Kirchberger, R., 18 Nov 2014.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

Control of a Low Range Extender for L1e Class PHEV Two-Wheelers

Schacht, H-J., Leibetseder, M., Bretterklieber, N., Schmidt, S. & Kirchberger, R., 2014, In : SAE Technical Papers. 2014320014, p. xx-xx

Research output: Contribution to journalArticleResearch

Experimental Verification and Drivability Investigations of a Turbo Charged 2-Cylinder Motorcycle Engine

Zinner, C., Stelzl, R., Schmidt, S., Leiber, S. & Schabetsberger, T., 2014, In : SAE Technical Papers. 2014320112, p. xx-xx

Research output: Contribution to journalArticleResearch

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

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

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., 8 Oct 2013.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

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., 8 Oct 2013.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

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

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

Future Engine Technology in Hand-Held Power Tools

Trattner, A., Schmidt, S., Kirchberger, R., Eichlseder, H., Kölmel, A., Raffenberg, M. & Gegg, T., 2012, In : SAE international journal of engines. 5, 4, p. 1912-1929

Research output: Contribution to journalArticleResearchpeer-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

Layout of a Charged Power Sport Engine

Zinner, C., Stelzl, R., Schmidt, S., Leiber, S. & Schabetsberger, T., 2012, In : SAE international journal of engines. 5, 4, p. 1855-1868

Research output: Contribution to journalArticleResearchpeer-review

Low Cost Range Extender Technology for Hybrid Electric City Scooters

Schacht, H-J., Schögl, O., Bretterklieber, N., Kirchberger, R. & Schmidt, S., 17 Oct 2012.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

Novel Range Extender Concepts for 2025 with Regard to Small Engine Technologies

Trattner, A., Pertl, P., Schmidt, S. & Sato, T., 2012, In : SAE International Journal of Alternative Powertrains. 1, 2, p. 566-583 2011-32-0596.

Research output: Contribution to journalArticleResearch

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
2011

A methodical approach for thermal management simulation of hybrid powersport application

Schmidt, S., Rieger, P., Trattner, A., Kirchberger, R., Dutzler, C. & Heizinger, G., 8 Nov 2011.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

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

Brennverfahrenskonzepte für eine Niederdruck-Direkteinspritzung bei Ottomotoren

Schmidt, S., Trattner, A., Eichlseder, H. & Kirchberger, R., 2011, In : Motortechnische Zeitschrift. 07/08 2011, p. 614-620

Research output: Contribution to journalArticleResearch

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

Concept Study of Range Extender Applications in Electric Scooters

Schacht, H-J., Kirchberger, R., Winkler, F. & Schmidt, S., 8 Nov 2011.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

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

2010

Basic investigations on the prediction of spray-wall and spray-fluid interaction for a GDI combustion process

Abart, M., Schmidt, S., Schögl, O., Trattner, A., Kirchberger, R., Eichlseder, H. & Jajcevic, D., 28 Sep 2010.

Research output: Contribution to conference(Old data) Lecture or PresentationResearch

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