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Open AccessArticle

Innovative and Highly Integrated Modular Electric Drivetrain

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Institute for Automotive Engineering (ika), RWTH Aachen University, 52056 Aachen, Germany
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Department of Mechanics and Maritime Sciences, Chalmers University of Technology, 41296 Gothenburg, Sweden
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Electromechanics and Power Electronics Group, Eindhoven University of Technology, 5612 AZ Eindhoven, The Netherlands
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BRUSA Elektronik AG, 9466 Sennwald, Switzerland
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Commissariat à l’énergie atomique et aux énergies alternatives–CEA, 38054 Grenoble Cedex, France
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Punch Powertrain, 3800 Sint-Truiden, Belgium
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MAHLE ZG Transmissions GmbH, 85386 Eching-Dietersheim, Germany
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Simulations and Test Solutions – Siemens Industry Software, S.A.S, 69006 Lyon, France
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Author to whom correspondence should be addressed.
World Electr. Veh. J. 2019, 10(4), 89; https://doi.org/10.3390/wevj10040089
Received: 11 October 2019 / Revised: 3 December 2019 / Accepted: 5 December 2019 / Published: 11 December 2019
A highly integrated electric drivetrain module with 157 kW peak power is presented, which incorporates novel technologies in the field of electric machines, power electronics and transmissions: 1. High-speed electric machine with six phases and injection mould polymer-bonded magnets; 2. High-ratio dual-speed transmission with double planetary gear set (Ravigneaux gear set); 3. Gallium nitride (GaN) power electronics with winding reconfiguration feature.The combination of these components in one single housing makes the drive module flexible to integrate and to combine with conventional or alternative propulsion technologies, thus allowing various hybrid and electric drivetrain topologies. All technologies are selected in accordance with mass production potential and can therefore have a high impact on the automotive market in the future. Currently, the drive module is under development; the first models will be assembled in winter 2019. The integration into a demonstrator vehicle in 2020 will prove the potential of many new technologies and the suitability for the automotive market. View Full-Text
Keywords: electric drive module; hybrid synchronous machine; gallium nitride; ravigneaux gear set; multi-phase electric machine; holistic drivetrain design; injection moulding electric drive module; hybrid synchronous machine; gallium nitride; ravigneaux gear set; multi-phase electric machine; holistic drivetrain design; injection moulding
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Hemsen, J.; Kieninger, D.; Eckstein, L.; Lidberg, M.R.; Huisman, H.; Arrozy, J.; Lomonova, E.A.; Oeschger, D.; Lanneluc, C.; Tosoni, O.; Debal, P.; Ernstorfer, M.; Mongellaz, R. Innovative and Highly Integrated Modular Electric Drivetrain. World Electr. Veh. J. 2019, 10, 89.

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