This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
New Energy Management Technology Gives Hybrid Cars Long Battery Life
Technical Paper
1999-01-2468
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
New energy-and-power management technology makes low-pollution hybrid electric vehicles practical and competitive in performance with gasoline powered cars. The fuel-burning engine can now run at its most efficient speed and load, with the propulsion motor supplying acceleration power and the generator capturing deceleration power. Battery depth of discharge can be monitored and controlled to get long battery life. A heavy battery is not needed for long travel distance. For example, the new Toyota Prius hybrid car delivers 66 miles per gallon in city driving and has a range of 600 miles on a tankful of gasoline. When acceleration power is supplied from a battery, then the engine can be a high-efficiency type, such as the 43-percent efficient Meijer version of the Stirling-cycle engine. Hydrogen, a previously impractical engine fuel, can be burned in external-combustion Stirling engines. Hydrogen can now be compactly stored in carbon nano-tubes or lithium aluminum tetrahydride. A new electrolyzer can produce hydrogen with 93.2 percent efficiency. The energy in hydrogen made with 6-cents-per kWh electricity costs one-half the price of energy in gasoline.
Recommended Content
Authors
Topic
Citation
Oman, H., "New Energy Management Technology Gives Hybrid Cars Long Battery Life," SAE Technical Paper 1999-01-2468, 1999, https://doi.org/10.4271/1999-01-2468.Also In
References
- Wyczalek, Floyd A. “Market Mature 1998 Hybrid Electric Vehicles IEEE Aerospace and Electronic Systems Magazine. March 1999 41 44
- Storing Energy for Nights and Days with No Sun or Wind Chapter 7 of Energy Systems Engineering Handbook Prentice Hall
- Hemming, Garth Modeling Launch Vehicle Economics Aerospace America March 1999 37
- Ahmad, A. J. Design and Performance of Tropical Rainfall Measuring Mission Proceedings of the 14th Annual Battery Conference on Applications and Advances January 12 to 15 1999
- Martin, Curtis T. Lithium-ion Development at Eagle Picher Proceedings of the 14th Annual Battery Conference on Applications and Advances January 12 to 15 1999
- Brown, J. T. Klein, M. G. Bipolar Nickel-Metal Hydride Battery for Electric Vehicles Proceedings of the 14th Annual Battery Conference on Applications and Advances January 12 to 15 1999
- Grewe, Tim HybridriveTM Hybrid Electric Drive System Proceedings of the 17th AIAA/IEEE/SAE Digital Avionics Systems Conference November 2 to 6 1998
- Lynch, Frank Hydrogen Storage and Generation Using Light Metal Hydrides Book of Abstracts from the 1998 33rd Intersociety Energy Conversion Engineering Conference 211
- Nakanori, Takahiro Development of Solid Polymer Water Electrolyzer with 200 cm2 5-Cell Book of Abstracts from the 1998 33rd Intersociety Energy Conversion Engineering Conference 128
- Kolin, Ivo The Evolution of the Heat Engine 1971 Moriya Press, P.O. Box 384 River Falls, WI 54022