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“MotorBrain" electric motor to debut at 2014 MobiliTec Fair

8th April 2014
Staff Reporter
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Hoping to shape the future of electromobility, an electric motor constructed by the 4 German partners in the European research project “MotorBrain" will be presented at the Hannover Messe “MobiliTec” fair, stand of the German federal government (Hall 27, Stand H51). The 4 partners of the project included Infineon Technologies, Siemens, the Institute of Lightweight Engineering and Polymer Technology at the Technische Universität (Technical University) Dresden and ZF Friedrichshafen.

The MotorBrain prototype is a highly integrated electric motor that unifies the most important components of the powertrain for an electric vehicle. The researchers have succeeded in designing a highly compact electric motor with only three-quarters the size of models from 2011, the year when MotorBrain began. The electric motor prototype now being presented could easily fit in a conventional-sized laptop or notebook backpack. And on top of that, it’s lighter than before. By the integration of motor, gear drive and inverter the MotorBrain partners were able to cut down the weight of the powertrain by approximately 15 percent, from 90 kilograms to less than 77 kilograms. Reduced size and weight will benefit the future car owner: A lighter electric vehicle that brings battery power “to the street” more efficiently and has a longer range than the electric vehicles of today. A medium-sized vehicle with MotorBrain electric motor and performance of 60 kilowatts (equal to about 80 hp) would be able to drive a good 30 to 40 kilometers farther than today’s electric vehicles with their average range of approximately 150 kilometers per battery charge.

Furthermore, the partners succeeded in building the MotorBrain prototype without using rare earth metals, which are currently a fundamental cost driver in hybrid and electric vehicles. Today rare earth metals are an important component in the permanent magnet of any electric motor, generating a particularly strong, constant magnetic field. The stronger the magnetic field, the higher the performance capabilities of the motor. However, obtaining rare earth metals is extremely complicated and environmentally harmful. Also, rare earth metal prices are high and fluctuate widely. The MotorBrain electric motor therefore utilizes readily available and less expensive ferrite magnets. The lower performance level of ferrite magnets compared to those with rare earth metals is compensated for by the specially developed high-RPM (revolutions per minute) rotor of the MotorBrain electric motor.

About the European research project “MotorBrain”
Led by Infineon, a total of 30 partners from nine European countries are conducting research in MotorBrain with the goal of increasing the range and safety of electric vehicles while at the same time reducing dependency on rare earth metals. The interdisciplinary team represents all development and production sectors relevant to electromobility. The team includes universities, non-university research facilities, semiconductor manufacturers, electric motor builders, automobile component suppliers and automobile manufacturers. The MotorBrain project began in the fall of 2011. Half a year before the project conclusion in October 2014, the research partners can already present their highly integrated electric motor without rare earth metals. They now have time until October 2014 to validate and prove their research results. A budget of approximately Euro 36 million makes Motor-Brain one of the largest European research projects in the area of electromobility, with financing coming from business and from national funding providers such as Germany’s Federal Ministry of Education and Research (BMBF) and the European ENIAC Joint Undertaking.

Compact and Efficient Electromotor: Prototype and presentation at MobiliTec 2014 trade fair
The MotorBrain project will be presented as a part of the Hannover Messe (April 7-11, 2014, Hannover, Germany) in the MobiliTec trade fair at the German federal government stand (Hall 27, Stand H51). With the theme “Our way to electromobility” the German federal government is presenting exemplary research projects from the core areas of electromobility: Manufacturing, Charging, Driving and Saving Resources. The MotorBrain presentation is located in the “Manufacturing” area at station 3 “Efficient Battery and Powertrain Systems”.

In addition to the stand presentation, Dipl.-Ing. Reiner John of Infineon Technologies will speak on the central MotorBrain research results in a talk entitled “Safety, Independence and Energy Efficiency for Electric Automobiles” in the MobiliTec Forum (April 9, 2014, at 3:30 pm; Hall 27, Stand G85).

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