Design aspects for in-vehicle IPM motors for sustainable mobility

Peter Horvath and Adam Nyerges ()
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Adam Nyerges: Department of Automotive Technologies, Faculty of Transportation Engineering and Vehicle Engineering,Budapest University of Technology and EconomicsBudapest, Hungary

Cognitive Sustainability, 2022, vol. 1, issue 1, 15-28

Abstract: n battery electric vehicles, synchronous interior permanent magnet (IPM) motors are gaining more and more ground due to their high power density and highly efficient operation. In order to reach a desired total torque, low torque ripple andhigh efficiency, and alot of pre-planning is required. The modern age engineering industry can rely much on complex simulation software, such as MotorAnalysis-PM. In this paper, an initial IPM motor design with delta magnet arrangement was created for vehicle application. The aim was to find correlations between rotor layout arrangement and crucial motor operational attributes, such as: torque components, torque ripple, cogging torque and efficiency. Time stepping magnetostatics Finite Element (FE) and time stepping transient FE simulations were used. Each arrangement change had its own simulation file, thus the effect of each change could be separately examined. Arrangements where the distance between magnets is smaller resulted in greater torque and efficiency. The use of enlarged magnets had the same results. Size should be increased and distance should be decreased with care to avoid a growth in torque ripple. Examinations proved that such simulation software greatly expands the design choices for sustainable mobility

Keywords: Permanent magnet synchronous machines; magnetostatics; efficiency map; IPM motor design; simulations; sustainable mobility (search for similar items in EconPapers)
JEL-codes: K32 (search for similar items in EconPapers)
Date: 2022
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DOI: 10.55343/CogSust.5

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