A hybrid propulsion system for a passenger car is described and its preliminary design and performance discussed. A gas turbine operating in a controlled on-off mode, a generator, a battery pack, an inverter, and an electric motor constitute the power system, with an electronic vehicle management unit supervising the system for control and regulation. Road simulation tests are presented, based on standard ECC driving mission cycles. The turbogas performance might be improved adopting ceramic blades, with a possible increase of the TIT (turbine inlet temperature), and a consequent increase of its efficiency. The paper reports on the first results of a study in progress, within a joint research program between the University of Roma 1 “La Sapienza” and the Italian Research Centre of ENEA-Casaccia.

Turns, S. R., 1996, An Introduction to Combustion, McGraw-Hill, New York.
Cioffarelli, E., 2000, “Preliminary Design of a Turbogas Based Series Hybrid Vehicle Propulsion System,” M.E. thesis, Department of Mechanics & Aeronautics Engineering University of Rome 1 (in Italian).
Cioffarelli, E., and Sciubba, E., 2000, “A New Type of Gas Turbine Based-Hybrid Propulsion System. Part 1: Concept Development, Definition of Mission Parameters and Preliminary Sizing,” Proceedings AES/ASME Winter Meeting, Orlando, FL.
Hucho, W. H., and Sovran, G., 1993, “Aerodynamics of Road Vehicles,” Annu. Rev. Fluid Mech.
Rautenberg, M., and Malobabic, M., 1985, “On Turbochargers With Variable Geometry,” ASME Paper No. 85-GT-149.
, and
, 1998, “Progress on the European Gas Turbine Program AGATA,” ASME J. Eng. Gas Turbines Power, 120.
et al.
, 1996, “Radial Turbine in Automotive Development for the 100 kW Automotive Ceramic Gas Turbine,” ASME J. Eng. Gas Turbines Power, 120.
Rautenberg, M. et al., 1984, “Improvement in Compressor Performance of a Small Turbocharger by Using Ceramic Insulation Between Turbine and Compressor,” Fifth International Conference for Mechanics Power Engineering, Cairo, Oct.
Berenyi, S. G. et al., 1998, “Hybrid Vehicle Turbine Engine Technology Support,” ASME Paper No. 98-GT-451.
Willis, G., and Radtke, R., 1985, “Hybrid Vehicle Systems Analysis,” SAE Paper No. 850225.
You do not currently have access to this content.