Magnetics Business & Technology - September/October 2023 - 9

FEATURE ARTICLE
the motor and contains a precise design of magnets to create
a magnetic field. A stator is static and made up of electric
coils that are fed energy from alternating current coming from
the power electronics via the battery. As current flows into the
stator, the magnetic field of the rotor will chase the magnetic
field in the stator, creating the motion that is transferred to the
wheels of the vehicle.
products from the Bosch Mobility Solutions portfolio. It also produces
high-pressure fuel injectors and pumps for internal combustion
engines and also manufactures safety-related products
such as electronic stability control to combat skidding.
The Bosch approach to electric motor development is flexible
and allows easy integration in different vehicle topologies
based on customer needs while still providing competitive
costs. The company uses approaches such as bar winding
technology to maximize power density while minimizing size,
which enables more freedom in the electric motor layout. Thinner
lamination tailored to customer needs provides greater
efficiency. As electric motors continue to develop, Bosch is enlisting
the help of artificial intelligence and new design methods
to continue to optimize development, efficiency, performance
and use of materials.
Electric motors from Bosch can deliver anywhere from 50 kilowatts
to up to 500 kilowatts with torque ranging from 150 Nm to
1000 Nm. They feature up to 98 percent efficiency, which helps
to maximize range of the vehicle. With a voltage range up to
850V, Bosch has developed electric motors suited for a variety
of applications from passenger cars to light commercial vehicle
use.
" We have long been believers in the potential of electromobility
and we have been investing heavily to bring this technology to
market at scale for our customers, " Mansuetti said.
The newly launched production of electric motors is located in a
building formerly occupied by production of diesel components.
Bosch announced in January 2020 that production of diesel
powertrain components would be slowly ramped down in favor
of securing electrification business.
" This launch
delivers on a commitment
to our associates
and to the
local community in
Charleston, " said
Mansuetti, who
started his Bosch
career as a manufacturing
engineer
at the facility. " We
are in the midst
of major shifts in
mobility, and the
story of reinvention in Charleston is a model for how electrification
production can evolve from within an existing facility. We
are building on the long-standing expertise and commitment of
the Charleston team with this new production. "
At the facility Bosch will produce the rotor and stator and the
final assembly of electric motors that will drive electric vehicles
on the road in the United States. Staff are learning the related
fundamentals and the intricacies: A rotor is the rotating part of
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AN
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& POWER FOR EV POWER
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The proper magnetics will help in improving vehicle efficiencies, offer
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September/October 2023 * Magnetics Business & Technology 9
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Magnetics Business & Technology - September/October 2023

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