december2022 - 31

Cleaner.
Better.
Further.
» The Eaton Cummins Endurant XD Series AMT provides
improved fuel economy and performance, lower cost
of ownership, and longer service intervals.
Eaton
AMT to offer a 15% boost in efficiency
over the 2017 GHG A26 engine.
Part of that efficiency boost comes
from the electronically controlled
clutch actuator that Navistar said
" works in sync with the engine to
deliver faster, smoother shift performance. "
The system also does not
require an air recharge after tight
maneuvers, and the integrated oil
and water coolant system optimizes
temperature regulation in extreme
environments. The powertrain is still
in the validation phase before it hits
customers in the summer of 2023.
The S13 Integrated Powertrain was
designed to be the last of its kind for
Navistar, which will be focusing on
electrification in the future.
On the automatic side, Allison
claims its FuelSense 2.0 software
can help deliver fuel savings of up to
6%. FuelSense 2.0 calibrations can
be specified for Allison transmissions
that support both mediumand
heavy-duty vehicles. Harbin
said the highest potential for fuel
savings have been demonstrated in
more demanding duty-cycle applications
such as distribution, city transit,
refuse, and construction.
Heavy-duty fleets have already
fully gone through one transition
from manual to automated manual
transmissions.
" The manual transmission has
been all but phased out of vehicle
specs for medium- and heavy-duty
trucks, " said James Burke, chief
» International's T14
transmission is part of the
recently launched International
S13 Integrated Powertrain. The
T14 is a 14-speed overdrive.
Navistar
engineer at Navistar. " Nowadays,
the medium-duty market primarily
sees automatic transmissions, while
heavy-duty trucks are typically spec'd
with an AMT. "
" The continued transition to electric
vehicles will eventually start
a decline in any new transmission
development for certain applications, "
Burke continued, " but the AMT will
still dominate the heavy-duty market
for the next several years with incremental
improvements. "
Servicing an AMT
" An AMT is no more challenging to
maintain than a mechanical transmission, "
said Mark Saholsky, director
of product management for Eaton
Cummins Automated Transmission
Technologies. " It's just a matter of
learning how they are different and
how preventive maintenance practices
differ. "
One difference is that AMTs are
more technologically complex than
a manual transmissions. Each AMT
also has its own fault code hierarchy.
Thus, up-to-date diagnostic software
is essential.
" An AMT isn't an item that typically
requires a technician to crack the
case open to make repairs, " said Len
Copeland, Detroit product marketing
manager for Daimler Truck
North America. " The go-to tool for
a heavy-duty technician is a laptop
nowadays. We have spent a lot of our
aftermarket investment in the development
of our service routines for our
AMTs. These allow technicians to
plug into a truck and quickly pinpoint
what is going on. "
Diagnostic software will also help
technicians respond to any issues
Delphi Technologies remanufactured injectors and
pumps will keep the world trucking by keeping parts on
the road and out of landfills.
With over 60 years of technological OE expertise, we are
proud to be able to provide sustainable global solutions
that will prepare our customers for the road ahead.
delphiaftermarket.com
Delphi Technologies is a brand of BorgWarner Inc.
December 2022 | FleetMaintenance.com
31
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december2022

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