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TECHNICAL PAPERS: Manifold Gas Dynamics and Turbocharging

Improvement of the Dynamic Characteristic of an Automotive Engine by a Turbocharger Assisted by an Electric Motor

[+] Author and Article Information
T. Katrašnik, S. Rodman, F. Trenc

Department of Mechanical Engineering, University of Ljubljana, Aškerševa 6, SI-1000 Ljubljana, Slovenia

A. Hribernik

Department of Mechanical Engineering, University of Maribor, Smetanova 17, SI-2000 Maribor, Slovenia

V. Medica

Faculty of Engineering, University of Rijeka, Vukovarska 58, 5100 Rijeka, Croatia

J. Eng. Gas Turbines Power 125(2), 590-595 (Apr 29, 2003) (6 pages) doi:10.1115/1.1563246 History: Received October 01, 2001; Revised October 01, 2002; Online April 29, 2003
Copyright © 2003 by ASME
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References

Watson, N., and Janota, M. S., 1982, Turbocharging of Internal Combustion Engine, Camelot Press, Southampton, UK.
Zinner, K., 1980, Aufladung von Verbrennungsmotoren, Springer-Verlag, Berlin.
Heywood, J. B., 1988, Internal Combustion Engine Fundamentals, McGraw-Hill, New York.
Wintebone, D. E., et al., 1979, “Transient Response of Turbocharged Diesel Engine,” Turbocharging the Internal Combustion Engine, Short Course, Department of Mechanical Engineering, Imperial College of Science and Technology, London.
Zellbeck,  H., Friedrich,  J., and Berger,  C., 1999: “Die elektrisch unterstuetzte Abgasturboladung als neues Aufladekonzept,” Motortech. Z., 60, pp. 386–391.
Shahed, S. M. et al., 2000, “Turbocharging Systems With Electrical Assistance for Conventional, Hybrid and Fuel Cell Powertrain,” 21 Internationales Wiener Motorensymposium 4-5 Mai, 1 , pp. 310–324.
Hoecker, P., et al., 2001, “eBooster Key Component of a New BorgWarner Turbo Systems Charging System for Passenger Cars,” International Wiener Motorensymposium, Wien, 2 , pp. 333–352.
Medica, V., 1989, “Simulation of Turbocharged Diesel Engine driving Electrical Generator Under Dynamic Working Conditions,” Dr. Sc. thesis, University of Rijeka, Croatia.
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Katrasnik, T., 2001, “Analysis of Transient Process in a Turbocharged Diesel Engine,” Master Sc. thesis No. M/1177, Dep. Mech. Engineering, University of Ljubljana, Slovenia.
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Povhe, T., 2001, “Determination of the Characteristics for a Small Radial Gas Turbine of an Automotive Turbocharger,” B. Sc. work No. 5159, Department Mechanical Engineering, University of Ljubljana, Slovenia.
Prijatelj, S., 2001, “Determination of the Flow Coefficients for the Intake and Exhaust Valves of the Diesel Engine MAN D 0826 LOH 15,” B.Sc. work No. d142, Department Mechanical Engineering, University of Ljubljana, Slovenia.
Adamovič, B., 2001, “Determination of the Valve Timing and Valve Lift of the Turbocharged Diesel Engine MAN 0816 LOH 15, B.Sc. work No. 464, Department Mechanical Engineering, University of Ljubjana, Slovenia.
Thiele,  E., 1982, “Ermittlung der Reibungsverluste in Verbrennungsmotoren,” Motortech. Z., 43, pp. 253–258.

Figures

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Scheme of an engine with electrically assisted turbocharger
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Scheme of a turbocharged engine with separate electrically driven compressor
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Results of comparison between measured and simulated transient operation of the engine; B.E.M.P.=0.4→1.4 MPa
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Layout of the turbocharger with the integrated electric motor
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Simulation of the transient response of the turbocharged engine with different auxiliary driving electric motors
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Boost pressure control of the cyclic fuel delivery for different engine speeds
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Simulation of the load acceptance of a turbocharged engine and electrically assisted turbocharged engine

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