Vitesco Technologies exhibited innovations for more sustainable and efficient electric driving at the 44th Vienna Motor Symposium. As a result of Life Cycle Engineering, the fourth generation of its fully integrated electric axle drive platform (EMR4, Electronics Motor Reducer) is being broadened by a new option to enable an even better life cycle assessment.
A new rotor without permanent magnets is now part of the platform development. As per the company, this rotor forms the core of an externally excited synchronous machine (EESM), which works without rare earth materials.
Thomas Stierle, Division Head, Electrification Solutions, Vitesco Technologies, said, “Top results in the sustainability and efficiency of electric cars will be achieved, if the vehicle drive is optimally adjusted to the specific scenario. The externally excited rotor without permanent magnets is a particularly sustainable option for our customers. The higher the performance requirements to the drive, the more economically attractive EESM technology becomes.”
The company further noted that applying a sophisticated winding principle makes the innovative EESM rotor an economically attractive option within the recent drive platform. Especially when high-performance requirements necessitate a big magnet mass in a PSM, EESM machines will be more affordable and more sustainable.
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