The influence of transmission ratios selection on electric vehicle motor performance
- Publication Type:
- Conference Proceeding
- ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE), 2012, 3 (PARTS A, B, AND C), pp. 289 - 296
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Increasingly electric vehicle design is looking forward the application of multiple ratio transmissions in place of traditional single ratio gearboxes. The choice of gear ratio has significant influence on vehicle performance, including range, acceleration, and gradeability. To study the impact of different transmissions on EV's dynamic and economic performance, mathematical models of an EV is presented which is applicable to both single and multiple ratio transmissions. These transmission variants are then studied under different operating conditions to investigate how operating conditions in the motor work efficiency change with different transmissions. Here comparisons are made between 2-speed and single speed transmission. Then the reasons for the results are analysed. Copyright © 2012 by ASME.
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