Traction motors for electric vehicles: Maximization of mechanical efficiency – A review

Massimiliano Gobbi, Aqeab Sattar, Roberto Palazzetti and Gianpiero Mastinu

Applied Energy, 2024, vol. 357, issue C, No S0306261923018603

Abstract: With the accelerating electrification revolution, new challenges and opportunities are yet emerging, despite range anxiety is still one of the biggest obstacles. Battery has been in the spotlight for resolving this problem, but other critical vehicle components such as traction motors are the key to efficient propulsion. Traction motor design involves a multidisciplinary approach, with still significant room for improvement in terms of efficiency. Therefore, this paper provides a comprehensive review of scientific literature looking at various aspects of traction motors to maximize mechanical efficiency for the application to high-performance Battery Electric Vehicles. At first, and overview on the mechanical design of electric motors is presented, focusing on topology selection, efficiency, transmission systems, and vehicle layouts; Special attention is then paid to the thermal management, as it is one of the main aspects that affects the global efficiency of such machines; thirdly, the paper presents a discussion on possible future trends to tackle ongoing challenges and to further enhance the performance of traction motors.

Keywords: Electric motor; Mechanical efficiency; Mechanical transmission; Materials for traction motors for EVs; Traction motor manufacturing; E-motor future trends (search for similar items in EconPapers)
Date: 2024
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Citations: View citations in EconPapers (1)

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DOI: 10.1016/j.apenergy.2023.122496

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