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Prototype Low Voltage Homopolar Traction Motor
Technical Paper
2002-01-1876
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
Future Car Congress
Language:
English
Abstract
Lower battery voltage enhances electric vehicle safety. A homopolar traction motor operates at low voltage because of its low internal impedance, and delivers torque independent of speed. A 48 VDC multi-pass, iron core homopolar traction motor was designed, fabricated, and tested in the laboratory. A MOSFET pulse width modulated controller was also designed and tested. The motor weighed 227 kg and used solid copper-graphite brushes. Laboratory testing of the motor verified the current-torque characteristic, but high brush wear prevented full speed and power demonstration. System studies show that a hybrid Ward-Leonard drive using a similar motor could yield significant cost and weight savings and improved fault tolerance over a traditional EV architecture.
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Authors
Citation
Aanstoos, T., Beno, J., and Caprio, M., "Prototype Low Voltage Homopolar Traction Motor," SAE Technical Paper 2002-01-1876, 2002, https://doi.org/10.4271/2002-01-1876.Also In
SAE 2002 Transactions Journal of Passenger Cars - Electronic and Electrical Systems
Number: V111-7; Published: 2003-09-15
Number: V111-7; Published: 2003-09-15
References
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