Press release
Stuttgart, July 04, 2022

MAHLE develops the most durable electricmotor• Superior continuous torque (SCT) E-motor can run indefinitely with highperformance• Technological leap through a new cooling concept—compact, light,efficient, and, by customer request, without the use of rare earth elements• Suitable for passenger cars, commercial vehicles, construction machines,and tractors• MAHLE becomes a full-range provider in the field of electric drives• Presentation of the new SCT E-motor at IAA Transportation 2022
The automotive supplier MAHLE has developed the most durable electricmotor available. The traction motor, which is unique on the market, canrun indefinitely with high performance. A new cooling concept makes
this technological leap possible. The new electric motor is surpassingly
clean, light, and efficient and can be assembled without the use of rareearths by customer request. The new development is suitable forpassenger cars and commercial vehicles as well as construction
machines and tractors. With the SCT E-motor, MAHLE thus becomesa full-range provider in the field of electric drives and covers all needsfrom e-scooters to heavy-duty commercial vehicles as well as off-road
and industrial applications. The new item will be presented for the firsttime at IAA Transportation in September 2022 in Hanover.
“Building large electric motors that deliver short-term high performance iseasy. What was still lacking on the market until now were durable yet compact
drives to make electric vehicles unrestricted for everyday use,” said Martin
Berger, Vice President Corporate Research and Advanced Engineering atMAHLE. “Our new SCT E-motor is the solution.”On the drivetrain side, this clears the way for the replacement of thecombustion engine in all vehicle classes. In 2021, MAHLE presented
a groundbreaking wear-free and scalable traction motor for passenger carsthat runs very efficiently over a wide rpm range.

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The SCT E-motor, on the other hand, is designed in such a way that it isparticularly efficient within a certain rpm range. Despite its very compact andlight design, its continuous output is more than 90 percent of its peak output.
Unique on the market, this groundbreaking high ratio means a technologicalleap and allows the use of electric vehicles of all kinds even under demanding
conditions. A classic example is driving an electric truck over mountain passes
or the multiple sprints of a battery electric passenger car. These scenarios are
only insufficiently covered by the electric motors available on the market up tonow.
This resilience is achieved by the new MAHLE electric motor through the useof an innovative integrated oil cooling, which not only makes it more robust but
also allows the waste heat generated to be used in the vehicle’s complete
system. At the same time, the extremely compact design results in anadvantage in the costs of materials and weight—a lighter motor requires lessmaterial during manufacture and increases the possible net load incommercial vehicles.
In designing the product, MAHLE opted for what is known as a permanently
excited motor, since this type enables a very compact design and no energy
has to be transferred to the rotor as “excitation current”. This makes the motor
efficient and wear-free. Neodymium magnets, currently the strongest
permanent magnets that can be produced, are used to generate the magnetic
field in the motor. However, to achieve greater independence from raw
material prices and geopolitical developments, the SCT E- motor can also be
designed without magnets for greater independence. Thanks to the uniquecontactless transformer developed by MAHLE, the magnet-free variant would
also be wear-free and run efficiently, while only requiring slightly more
assembly space.

Compact endurance athlete —the new SCT
E- motor by MAHLE on the test bench.

Impressive: Innovative cooling prevents
overheating – even during continuous
operation with 90 percent of the motors
peak performance.

Page 2 of 3Contact persons for MAHLE communications:
Ruben DanischSpokesperson Product and Technologies
Phone: +49 711 501-12199
E-mail: ruben.danisch@mahle.com
Christopher Rimmele
Spokesperson Aftermarket
Phone: +49 711 501-12374
E-mail: christopher.rimmele@mahle.com

About MAHLE
MAHLE is a leading international development partner and supplier to the automotive industry with customers in bothpassenger car and commercial vehicle sectors. Founded in 1920, the technology group is working on the climate-neutral
mobility of tomorrow, such as fuel cells and hydrogen motors, with a focus on e-mobility and thermal management as well as
further technology fields to reduce CO2 emissions. MAHLE already generates over 60 percent of its sales independently of
the passenger car combustion engine. This should increase to 75 percent by 2030. Today, one in every two vehicles globallyis equipped with MAHLE components.
MAHLE generated sales of around EUR 11 billion in 2021. The company is represented with over 71,000 employees at
160 production locations and 12 major research and development centers in more than 30 countries. (Last revised:12/31/2021)#weshapefuturemobility

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