Truck & Off-Highway Engineering - October 2022 - 14
ORIGINAL
EQUIPMENT
Freightliner's medium-duty makeover for M2 and SD models
The new Plus series medium-duty and vocational trucks employ a new electrical architecture that enables active-safety and connectivity features.
Circling the highway loop at the
American Center for Mobility in Ypsilanti,
Michigan, the enhancements Freightliner
engineers made to the new Plus series
medium-duty and vocational trucks are
evident. The cab is more comfortable
and noticeably quieter than previous M2
and SD models, and active-safety demonstrations
highlighted a first for these
trucks - the Detroit Assurance 5.0 suite
of safety and connectivity systems.
The M2 106 Plus (Class 6-8), M2 112
Plus (Class 8), 108SD Plus (Class 7-8)
and 114SD Plus (Class 8) also feature a
new electrical architecture with additional
electronic control units, enabling
the enhanced safety and connectivity
features. The new multiplex electrical
system also could help enhance the
eventual electrification of the models.
Some things did not change from the
previous model. Greg Treinen, product
marketing manager, Heavy Vocational
at Daimler Trucks North America, noted
carryovers such as the 2500-sq-in.
windshield and sloped hood for visibility,
the 55-degree wheel cut for maneuverability
that is critical for pickup and
delivery applications, the steel-reinforced
aluminum cab, frame rails, clear
back of cab and the routing and clipping
that was updated a few years ago.
" While the Plus series represents a major
change, there has been an evolution
over time, " he said.
Engineers emphasized electrical14
October 2022
" In the vocational market, safety is not just
becoming cost of entry; for many customers
it's required to do business. "
component placement to improve durability.
The power-distribution module
was relocated from the fender to under
the hood on the firewall, where it's less
prone to road vibrations. The transmission-control
module was was relocated
for additional protection. The electronics
are protected in a IP69K enclosure.
" There's a couple of other key aspects
that we moved behind the dash, so we
really focused on placement of electrical-system
components to reduce instances
of downtime, " Treinen said.
" Why the Plus series? " Aaron Scates,
VP of Vocational and Medium-Duty market
development at Daimler Truck North
America, asked to begin his presentation
at ACM. Because customers asked for it.
The M2 was introduced more than two
decades ago and has been a consistent
best-selling medium-duty product for
DTNA. The SD model, a leading product
in the vocational market for DTNA,
launched about 10 years ago. " Over the
years we've made incremental improvements, "
he said. " More recently, we've
gotten customer feedback needing to
make a major leap forward in terms of
technology and features. "
Active safety and connectivity
Already available in other DTNA products,
Detroit Assurance 5.0 now is available
across Freightliner's entire vocational
and medium-duty truck lineup.
With new electrical architecture, Plusseries
trucks give customers access to
the safety systems not only by selecting
the Detroit DD13 Gen 5 engine with
DT12 or DT12-V (vocational variant) automated
manual transmission, but also
" for the first time in any DTNA product "
when spec'ing a Cummins engine.
" If you're a fleet and you have different
needs in terms of powertrain, you'll
now be able to get the same performance
and experience and also train
your drivers in the same way about how
to use the equipment regardless of
powertrain choice, " Scates said.
Previously, Cummins engines were
paired with WABCO or other third-party
active-safety systems.
Depending on truck model, the Plus
series lineup offers the Cummins B6.7,
L9 and X12 diesel engine options as well
as L9N and ISX12N natural-gas engines.
Eaton manual and automated-manual
transmissions, as well as Allison autoTRUCK
& OFF-HIGHWAY ENGINEERING
FREIGHTLINER
Truck & Off-Highway Engineering - October 2022
Table of Contents for the Digital Edition of Truck & Off-Highway Engineering - October 2022
Truck & Off-Highway Engineering - October 2022 - CVRA
Truck & Off-Highway Engineering - October 2022 - CVRB
Truck & Off-Highway Engineering - October 2022 - CVR1
Truck & Off-Highway Engineering - October 2022 - CVR2
Truck & Off-Highway Engineering - October 2022 - 1
Truck & Off-Highway Engineering - October 2022 - 2
Truck & Off-Highway Engineering - October 2022 - 3
Truck & Off-Highway Engineering - October 2022 - 4
Truck & Off-Highway Engineering - October 2022 - 5
Truck & Off-Highway Engineering - October 2022 - 6
Truck & Off-Highway Engineering - October 2022 - 7
Truck & Off-Highway Engineering - October 2022 - 8
Truck & Off-Highway Engineering - October 2022 - 9
Truck & Off-Highway Engineering - October 2022 - 10
Truck & Off-Highway Engineering - October 2022 - 11
Truck & Off-Highway Engineering - October 2022 - 12
Truck & Off-Highway Engineering - October 2022 - 13
Truck & Off-Highway Engineering - October 2022 - 14
Truck & Off-Highway Engineering - October 2022 - 15
Truck & Off-Highway Engineering - October 2022 - 16
Truck & Off-Highway Engineering - October 2022 - 17
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Truck & Off-Highway Engineering - October 2022 - 24
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Truck & Off-Highway Engineering - October 2022 - 27
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Truck & Off-Highway Engineering - October 2022 - 32
Truck & Off-Highway Engineering - October 2022 - 33
Truck & Off-Highway Engineering - October 2022 - 34
Truck & Off-Highway Engineering - October 2022 - CVR3
Truck & Off-Highway Engineering - October 2022 - CVR4
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