july2022 - 45

Spec'ing and Technician Training
Guidelines for Advanced Driver
Assistance Systems (ADAS)
S.5 Fleet Maintenance
Management Study Group
Thursday, Sept. 29
9:30 - 11 AM
Advances in vehicle safety technology-called
Advanced Driver
Assistance Systems (ADAS)-can
help reduce the number of vehicle
crashes, injuries, and deaths.
Many of today's vehicles can be
specified with ADAS technologies
that monitor driver input and the
environment around the vehicle.
These ADAS-equipped vehicles
may also automatically brake or
steer the vehicle if the driver does
not act to avoid the collision.
Now that fleets and owner-operators
have become more aware of
the capabilities of these systems,
guidelines for specifying and maintaining
ADAS are gaining interest.
TMC is in the midst of developing
several recommended practices
on the subject as part of its role
in the Federal Motor Carrier
Safety Administration's (FMCSA)
Tech-Celerate Now Program.
During this session, panelists will
describe the work being done
within TMC on developing RPs for
spec'ing and technician training of
ADAS. Information will be shared
from the fleet, vehicle manufacturer,
component supplier, and
service dealer perspective.
If your operation is considering
utilizing ADAS technologies in
your next round of vehicle acquisitions,
this session is a must.
Effects of Downspeeding on
Today's Braking Systems
S.6 Chassis & Brake
Systems Study Group
Wednesday, Sept. 28
1:15 - 2:45 PM
New federal fuel economy and
greenhouse gas standards for
medium-duty and heavy-duty
vehicles have prompted truck
manufacturers to turn to " downspeeding "
to squeeze more
miles out of every gallon.
Downspeeding reduces engine
speed to save fuel. For every 100
rpm reduction in engine speed
(at 65 mph), as much as 1.5% fuel
is saved. Instead of cruising at
around 1,450 rpm as did older
models, today's trucks operate
consistently in a more efficient
range between 1,100 and 1,200
rpm-or lower-while still satisfying
the same horsepower demand.
There are some drawbacks to
downspeeding, however. Faster
axle ratios and reduced engine
speed puts significantly higher
torque stresses on the drivetrain-
by as much as 30%. This means
greater stress and reduced life
expectancy of the axle, driveshaft,
inter-axle shaft, and U-joints.
Does downspeeding affect today's
drum and disc brake systems?
If downspeeding results in less
engine retardation, the foundation
brakes may take on more braking
responsibility and that could lead
to accelerated, albeit normal, wear.
Other issues may center around
changing maintenance schedules-even
increased driver-perceived
noises since downsped
trucks are generally quieter.
Attend this session and learn how
downspeeding may be impacting
your vehicles' brakes and
what you need to do about it.
Talking Straight With Your
Trailer: Direct-to-Trailer
Diagnostic Communication
S.7 Trailers, Bodies & Material
Handling Study Group
Thursday, Sept. 29
9:30 - 11 AM
For years, trailers were considered
to be rather primitive when it
came to diagnostic capabilities.
But now, a number of manufacturers
and diagnostic adapter
providers are offering solutions
that allow for direct-to-trailer
diagnostic communication.
One diagnostic tool provider,
for example, offers a new trailer
adapter that allows analysis of
trailer ABS issues no matter what
ABS brand or software is used.
There are also devices that allow
for a direct-to-trailer connection
with a battery/secondary power
source that energizes the trailer's
seven-pin connector for diagnostics
independent of a tractor. There
are also a host of telematics for the
emerging generation of smart trailer
systems that fleets can leverage
for direct diagnostic information.
Is your operation taking full
advantage of these cutting-edge
tools that can simplify trailer
maintenance? Attend this session
and learn how your maintenance
operation can start
talking " straight " to its trailers.
Critical Maintenance Considerations
for Electric Vehicles (EVs) and
EV Support Equipment
S.11 Sustainability &
Environmental Technologies
Study Group
Wednesday, Sept. 28
1:15 - 2:45 PM
Electric vehicles are gaining a great
deal of attention in the commercial
vehicle sector because of the
potential advantages they offer
for improved energy efficiency,
reduced emissions, and national
energy security. EV adoption, however,
does present fleet managers
a number of challenges, not the
least of which is how to maintain
EVs as compared to conventionally
powered trucks and tractors.
The spectrum of electric vehicle
solutions for commercial applications
covers a wide range,
depending on the vocation and
vehicle class. Class 3-6 applications
may use hybrid electric, plug-in
hybrid electric, or all-electric
(battery-electric) systems. Larger
applications may be all-electric
or hydrogen-hybrid electric.
We're all familiar with preventive
maintenance schedules and specifications
for conventional vehicles,
but how does it work with EVs?
TMC is working on many of these
issues across more than a dozen
Council Task Forces. We're developing,
for example, new tire, lubricant,
leak detection, and coolant maintenance
guidelines for this new
type of commercial vehicle. Attend
this session and learn all about
the various considerations fleet
managers must know regarding EVs
and EV support equipment. It's not
as straightforward as you think.
GUARANTEED FOR LIFE
NEVER RUST
NEVER CRACK
NEVER NEED POLISHING
N
N
N
POLY
FENDERS
MATTRESSES
FLOOR MATS
TOOL BOXES
MUD FLAPS
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