46th International Vienna Motor Symposium
Mercedes-Benz Modular Architecture (MMA): Next Generation BEV by Mercedes-Benz
Authors
T. Eder, N. Merdes, S. von Malottki, S. Tyslik, U. Keller, T. Stegmaier, D. Hopp, C. Doerr, M. Hermsen, F. Lampmann, V. Scheinhütte, G. Paul, T. Handschuh, F. Nietfeld, C. Pfeffer, A. Aspacher, P. Deubler, Mercedes-Benz AG, Stuttgart
Year
2025
Print Info
Production/Publication ÖVK
Summary
Mercedes-Benz already communicated a clear strategy for the full electrification of its powertrains in 2021. At the IAA 2023, the Concept CLA Class provided a preview of the first vehicle on the new MMA architecture. It brings a whole range of innovations derived directly from the Vision EQXX technology programme.
The top priority of the new architecture is the best possible customer experience. To achieve this, the range and charging performance were optimised in addition to consistent design for efficiency. Another component for optimising weight, installation space and efficiency is the high integration of power distribution, charging components and 12 V on-board electrical system supply in the HV OneBox.
The Concept CLA Class gave an initial outlook on the potential of this technology: In addition to a range of over 750 km, the 800 V architecture enables the customer to have a very high DC charging capacity of up to 320 kW. This enables a recharge range of up to 300 km in 10 minutes. Due to the high efficiency of the drivetrain, consumption is only around 12 kWh/100 km. The range of over 750 km is achieved by using a top-end cell chemistry with significantly increased energy density and high overall drive efficiency. To optimise efficiency and performance in every driving situation, the Electric Drive Unit 2.0 (EDU 2.0) developed by Mercedes-Benz with permanently synchronous motor (PSM) and silicon-carbide inverter (SiC) also features a two-speed transmission in the compact class.
By using an Electric Drive Unit (EDU) on the front axle with permanently synchronous motor (PSM), silicon carbide inverter (SiC) and disconnect unit (DCU), efficiency can also be achieved in the 4MATIC models. An intelligent operating strategy ensures the best possible performance and efficiency depending on the driving situation.
ISBN
978-3-9504969-4-9
DOI
https://doi.org/10.62626/3aig-hgkf
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