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Design, Production, and Verification of a Switched-Reluctance Wheel Hub Drive Train for Battery Electric Vehicles

  • This contribution deals with the topic of the consistent further development of a wheel hub motor for battery electric vehicles (BEV) based on the principle of an outer rotor switched reluctance machine (SRM). The research work presented in this paper was founded by the ERDF.NRW program, Investment for Growth and Employment and the European Regional Development Fund. The R&D project was named Switched - Reluctance fo(u)r wheel (SR4Wheel). Based on the experience made by first prototype Evolution 0 (EVO 0), developed in the Laboratory for Automation Engineering, Power Electronics and Electrical Drives of the Cologne University of Applied Sciences (CUAS), the test results of EVO 1, as well as the redesign, EVO 2 is presented in this paper. The prototype EVO 0, a first proof of concept leads to several optimizations and lessons learned for the predecessor model EVO 1. The overall target of developing such a gearless outer rotor wheel hub motor is the full integration of the complete machine including its power electronics into the given space between the original friction brake and the rim. Furthermore, due to the additional integration of the power electronics, great opportunities in terms of new vehicle design as well as retrofitting capabilities of already existing vehicle platforms can be achieved. Thereby, further drive train assembly space like the engine compartment is no longer necessary. The SRM does not require magnets for torque production which leads to independence from the changeable commodity prices on the rare earth element markets. This paper presents the developing process, testing, and verification of the innovative drive train concept starting with the final CAD of EVO 1. During the testing and verification process a machine characteristic mapping is performed on a drive train test bench and subsequently the results of a finite element analysis (FEA) are plausibility checked by the test bench results. The process continues with energy conversion test scenarios of the project demonstrator vehicle on a roller test bench focused on noise vibrationharshness (NVH) behavior and efficiency. As a conclusion, the gained knowledge by evaluating two EVO 1 prototypes on the rear axle of the test vehicle, and the design for the front axle drive train EVO 2 will be presented. As a major task on the front axle, the limited space due to the large disc brake can be identified and solved.

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Metadaten
Verfasserangaben:Martin Vosswinkel, Andreas Lohner, Volkmar Platte, Tobias Hirche
URN:urn:nbn:de:hbz:832-epub4-14555
DOI:https://doi.org/10.3390/wevj10040082
ISSN:2032-6653
Titel des übergeordneten Werkes (Englisch):World Electric Vehicle Journal
Jahr der Fertigstellung:2019
Verlag:MDPI
Dokumentart:Wissenschaftlicher Artikel
Sprache:Englisch
Datum des Hochladens:06.07.2020
GND-Schlagwort:Elektroantrieb; Elektrofahrzeug; Radnabenmotor; Reluktanzmaschine; Triebstrang
Freies Schlagwort / Tag:BEV (battery electric vehicle); EV (electric vehicle); Electric drive; Finite element calculation; Powertrain; Switched reluctance machine; Wheel hub motor
Jahrgang:10
Ausgabe / Heft:4
Seitenzahl:15
Fakultäten und Zentrale Einrichtungen:Informations-, Medien- und Elektrotechnik (F07) / Fakultät 07 / Institut für Automatisierungstechnik
DDC-Sachgruppen:600 Technik, Medizin, angewandte Wissenschaften / 620 Ingenieurwissenschaften und Maschinenbau
Open Access:Open Access
DeepGreen:DeepGreen
Lizenz (Deutsch):License LogoCreative Commons - CC BY - Namensnennung 4.0 International