Abstract
With increasing number of electric vehicles being designed, more reliable, accurate and performant software tools for their analysis and design have to be provided. While simulation of the dynamics of electric powertrains in time domain delivers accurate results, its performance is not high enough to allow for calculation of multiple variants needed for choosing an optimal layout of the system in acceptable time. The present paper describes a methodology and a tool for additional frequency-domain simulation of dynamics which closes that gap. An application example of electric drive unit of a passenger car with two-stage gearbox is considered. Comparing the results of frequency- vs. time-domain simulation, as well as vs. modal analysis, shows reasonable correlation confirming the viability of the suggested approach.
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Abbreviations
- BEV:
-
Battery electric vehicle
- EDU:
-
Electric drive unit
- EM:
-
Electromagnetic
- FDS:
-
Frequency-domain solution
- FE:
-
Finite element
- FFT:
-
Fast Fourier transform
- IC:
-
Internal combustion
- MBS:
-
Multibody system
- NVH:
-
Noise, vibration and harshness
- PMSM:
-
Permanent-magnet synchronous machine
- TCA:
-
Tooth contact analysis
- TDS:
-
Time-domain solution
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Bauer, KD. et al. (2023). Analysis of Dynamics and NVH of Electric Drive Unit Using Frequency- and Time-Domain Solutions. In: Okada, M. (eds) Advances in Mechanism and Machine Science. IFToMM WC 2023. Mechanisms and Machine Science, vol 147. Springer, Cham. https://doi.org/10.1007/978-3-031-45705-0_98
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DOI: https://doi.org/10.1007/978-3-031-45705-0_98
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