The paper describes some simple modelling to investigate whether there are potential benefits to incorporating a geared transmission in electric vehicle driveline. The overall conclusion is that considerable benefits in energy consumption are available if a continuously variable gearbox system is incorporated; performance improvements of 6 to 19.2% are predicted over a range of European, USA and Japanese driving cycles. Furthermore, the use of a much simpler, two speed gearbox an improve performance significantly — by for example 9.2% over the NEDC cycle — although similar improvements are not predicted over other driving cycles. Overall, the results suggest not only that direct benefits in terms of energy reductions are obtainable, but also that significant reductions in motor and driveline sizing may be an alternative approach to exploiting the introduction of a transmission system.
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ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
August 30–September 2, 2009
San Diego, California, USA
Conference Sponsors:
- Design Engineering Division and Computers in Engineering Division
ISBN:
978-0-7918-4903-3
PROCEEDINGS PAPER
Effect of Geared Transmissions on Electric Vehicle Drivetrains
Qinglian Ren,
Qinglian Ren
University of Sunderland, Sunderland, UK
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David A. Crolla,
David A. Crolla
University of Sunderland, Sunderland, UK
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Adrian Morris
Adrian Morris
University of Sunderland, Sunderland, UK
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Qinglian Ren
University of Sunderland, Sunderland, UK
David A. Crolla
University of Sunderland, Sunderland, UK
Adrian Morris
University of Sunderland, Sunderland, UK
Paper No:
DETC2009-87190, pp. 959-966; 8 pages
Published Online:
July 29, 2010
Citation
Ren, Q, Crolla, DA, & Morris, A. "Effect of Geared Transmissions on Electric Vehicle Drivetrains." Proceedings of the ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 6: ASME Power Transmission and Gearing Conference; 3rd International Conference on Micro- and Nanosystems; 11th International Conference on Advanced Vehicle and Tire Technologies. San Diego, California, USA. August 30–September 2, 2009. pp. 959-966. ASME. https://doi.org/10.1115/DETC2009-87190
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