Electric mobility is a key focus of research at the
Institute of Electrical Energy Conversion (Institut
für Elektrische Energiewandlung, IEW) at the
University of Stuttgart. Research is split into two
areas: electrical machines and inductive energy
transfer. The scientists research the design of
electric motors with extremely high torque den-
sities and position-tolerant inductive charging
stations. Their goal is the development of highly
efficient components for the electric vehicles of
the future.
Due to their good controllability, their wide
spectrum of use and their excellent efficiency,
electric motors are perfectly suited for reducing
primary energy consumption. Electric mobility
requirements have shown that it is not sufficient
to just adapt standard technologies to new fields
of use. Drive systems optimised for use in electric
vehicles, particularly wheel hub and direct drives,
are the research focus of the IEW.
It is essential to make a widespread charging
infrastructure available first to be able to in-
crease the number of electric vehicles in use.
Inductive charging systems allow the wireless
charging of electric vehicles and, at the same
time, automate the charging operations so that,
for example, cars can be charged on inner-city
parking lots. This measure is definitely suited to
increasing the range of electric vehicles. In this
regard, IEW currently researches position-toler-
ant charging systems with an efficiency factor of
more than 90 per cent.
implement innovations and realise visions
Prof.Dr.-Ing. Nejila Passpour
Phone: +49 711 685 67819
Fax: +49 711 685 67837
University of Stuttgart – Institute of
Electrical Energy Conversion (IEW)
Pfaffenwaldring 47
70569 Stuttgart, Germany
Year of establishment:
14 (2012)
EUR 500,000 (2012)
From e-drive to wireless charging
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