Automotive Engineering - March 2022 - 19
PROPULSION FEATURE
- will generate a combined 318 kW (426 hp) with the
pickup's standard-range battery pack and 420 kW (563
hp) with the extended-range battery. Torque in either
configuration is 775 lb-ft (1051 Nm).
BMW, a brand with much to lose if the transition to
electrification falls short of its powertrain heritage, recently
announced a half-billion-euro expansion of its
Dingolfing, Germany, plant for its " e-drive " motor modules
(traction motor, power electronics and transmission
in a single housing). Production at the site and others in
Germany will facilitate manufacturing of e-drive (now in
its fifth generation) for upwards of 500,000 electrified
vehicles in 2022. " We expect at least 50 percent of the
vehicles we deliver to our customers worldwide to be
electrified by 2030. To achieve this, we are relying on our
extensive in-house drivetrain expertise, " said Michael
Nikolaides, senior VP, Production Engines and E-Drives,
BMW Group, in a release.
The " in-house advantage " might be most intense at
startup Lucid Motors. In an interview with SAE Media,
chief engineer Eric Bach stressed that Lucid's electricdrive
module - a PM motor, inverter and gearbox the
company dubs " impossibly compact, " is an entirely
in-house effort.
GM's new family of
traction motors is scalable across its
burgeoning EV portfolio.
" We purchase components, obviously, like a casting, we purchase
gears, we purchase bolts, we purchase copper wire, we purchase the
lamination stacks, but they've all been designed and engineered inhouse, "
Bach asserted. " And we wind our copper in house. We do it
really from single parts to the complete end-of-line-tested drive unit. "
Countering the current slant toward in-house design in manufacturing
for traction motors is the opening that several suppliers see in
e-axle design and manufacturing, supplying a motor-integral axle
module to easily impart propulsion for an axle not typically powered
in the standard vehicle configuration. Tier 1s including Bosch, ZF,
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Automotive Engineering - March 2022
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