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A new controller for battery-powered electric vehiclesThis paper describes the development, under a NASA/DOE contract, of a new concept for efficient and reliable control of battery-powered vehicles. It avoids the detrimental effects of pulsed-power controllers like the SCR 'chopper' by using rotating machines to meter continuous currents to the traction motor. The concept is validated in a proof-of-principle demonstration system and a complete vehicle is simulated on an analog computer. Test results show exceptional promise for a full-scale system. Optimum control strategies to minimize controller weight are developed by means of the simulated vehicle. The design for an Engineering Model is then prepared in the form of a practical, compact two-bearing package with forced air cooling. Predicted performance is outstanding, with controller efficiency of over 90% at high speed.
Document ID
19800064299
Document Type
Conference Proceedings
Authors
Belsterling, C. A. (Franklin Research Center Philadelphia, PA, United States)
Stone, J. (Franklin Research Center Philadelphia, Pa., United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1980
Subject Category
ELECTRONICS AND ELECTRICAL ENGINEERING
Meeting Information
Energy to the 21st century(Seattle, WA)
Distribution Limits
Public
Copyright
Other