Abstract
Electrical motors is nowadays recognizable in the automotive industry. The global aim is to increase as much as possible the power density and in parallel save costs and increase the system’s efficiency [Sed17].
Within the joint project “Speed2E”, a drivetrain prototype capable of input speeds of up to 30,000 rpm was developed and successfully tested. In particular, the powertrain behavior in terms of efficiency and NVH was investigated, in order to prove the advantages of high-speed concepts [Gwi16b, Gwi17]. In the follow-on joint project “Speed4E”, the idea of increasing the power density through high motor speed is pursued even further. Especially the impact on dynamics, efficiency and costs when increasing speed up to 50,000 rpm will be investigated. Moreover, a highly-integrated drivetrain along with efficiency optimization will be strived in parallel. Aim of this paper is to present the ideated concept and to give an insight on the designed hyper-high-speed gearbox.
The project Speed4E is funded by the German ministry for Economic Affairs (BMWi) under the supervision of the German Aerospace Centre (DLR).
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Acknowledgement
Special thanks go to the Federal Ministry for Economic Affairs and Energy (BMWi) and to the German Aerospace Center (DLR) for sponsoring the project Speed2E and the follow-up project Spee4E. Additionally, many thanks to the Forschungsvereinigung Antriebstechnik e. V. (FVA) for supporting both projects
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Mileti, M., Strobl, P., Pflaum, H., Stahl, K. (2020). Design of a Hyper-High-Speed Powertrain for EV to Achieve Maximum Ranges. In: CTI SYMPOSIUM 2018. Proceedings. Springer Vieweg, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-58866-6_21
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DOI: https://doi.org/10.1007/978-3-662-58866-6_21
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