This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Selection of a Brushless DC Motor Employed to Propel an Electric Car
Technical Paper
2011-36-0246
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
This work presents the results of the development of a small electric car and the study of a Brushless DC Motor, employed to propel the electric car. The aim was selecting a motor with characteristics of operation suited to propel the electric car at a speed from 12 to 20 km/h. The propulsion system has a brushless DC motor and an electronic control unit. The electronic control unit was designed and constructed based on the characteristics of the selected brushless motor. Tests were carried out on the electric car, with the purpose of determining the behavior of the mechanical power required by it, as a function of speed. The results allowed selecting a brushless motor with the following characteristics: 12 V, 5.9 A and 13600 rpm. A theoretical study was developed to determine the suited gear ratio between the speed of the motor and the speed of the wheels of the car. Theoretical values of mechanical power developed by the brushless motor, computed as function of the battery voltage and of speed, were compared to the values of mechanical power required by the car, obtained by means of tests. By doing that, it was possible to calculate the characteristics of operation of the brushless motor in which it develops its maximum efficiency, when it propelled the electric car. The gear ratio resulted in 64:1. The study showed that the car would require a mechanical power of 58 W, when it was at 20 km/h.
Recommended Content
Authors
- Marilia Amaral Da Silveira - Lutheran University of Brazil
- Luiz Carlos Gertz - Lutheran University of Brazil
- André Cervieri - Lutheran University of Brazil
- Antônio Flávio Aires Rodrigues - Lutheran University of Brazil
- Diego Klein Da Luz - Lutheran University of Brazil
- Carlos Eduardo Presa D'Avila - Lutheran University of Brazil
Citation
Da Silveira, M., Gertz, L., Cervieri, A., Rodrigues, A. et al., "Selection of a Brushless DC Motor Employed to Propel an Electric Car," SAE Technical Paper 2011-36-0246, 2011, https://doi.org/10.4271/2011-36-0246.Also In
References
- Emadi, Ali Energy-Efficient Electric Motors 3 rd 2005 New York Marcel Dekker
- Fitzgerald, A.E. Kingsley, Charles Jr. Umans, Stephen D. Maquinas Elétricas 6 th Bookman 2006 São Paulo
- WESTBROOK, Michael H. The Electric Car 1 London IET 2001
- MEHRDAD, Ehsani et al. Modern Electric, Hybrid Electric, and Fuel Cell Vehicles 1 New York CRC Press 2005
- LEITMAN, Seth. Bob, BRANT Build Your own Eletric Vehicle 2 New York McGraw-Hill 2009
- Chai, Hi-Dong Electromechanical Motion Devices Prentice Hall 1998 Upper Saddle River
- Emadi, Ali Handbook of Autotive Power Electronics and Motor Drives Taylor & FrancisGroup 2005 Boca Raton
- TREFFER, TECNOLOGIAS Maxon Motores Belo Horizonte 2008 http://www.treffer.com.br/produtos/maxon/motores/pdf/164.pdf/201 10 2008
- Gauen, Kim Alberkrack, Jade Three Piece Solution for Brushless Motor Controller AN1046/D. ON Semiconductors http://www.datasheetcatalog.org/datasheet2/5/0qk3alcr37zlqszt6xa6oax9zxpy.pdf jul 10 2010