14 eMOBILITY MOTORS
eMobility motors are used in more and more road
and off-road vehicles, ships and even aircraft. They
can be the sole engine, or they can be combined
with combustion motors (hybrids). For example, hybrids
can be in connection in series like an in-gearbox
system, or operate in parallel such as an in-wheel
eMotor. Each design places its own special requirements
on the insulation system.
Space in vehicles is limited, so power density is paramount.
Efficient thermal management and a highly
effective insulation system are important in achieving
this design goal.
This fast-growing market encourages rapid innovation,
with the speed and efficiency of production being very
important drivers on the business side. The use of flatwire
motors is becoming standard in eMobility applications,
because of their high copper fill factor and levels
of efficiency.
With 800 V power levels set for future high-performance
drive systems, partial discharge resistance of the
insulation system is a key parameter in achieving long
machine life times. Therefore a successful combination
of wire enamels, flexible insulation materials and
impregnating as well as casting & potting resins is in
demand.
To address consumer expectations, OEM and Tier1
manufacturers are demanding more and more materials
that meet rigorous standards of environmental sustainability
and health & safety.
eMobility Motors