Fleet Maintenance - 35

ยป TPMS and ATIS each have their pros and cons, but "you'll
never completely avoid maintenance or downtime," says
Stemco's Lee Alexander. "These systems are designed
to make it more manageable and predictable."
Photo from Dreamtime

[ TIRE & WHEEL ]

T

ire pressure monitoring systems (TPMS) and automatic tire inflation systems (ATIS) are crucial to
preventing potentially disastrous tire issues.
TPMS does this by monitoring tire pressure and
temperature and alerting drivers and/or the fleet
when complications occur. ATIS, on the other
hand, handles tire pressure on its own by inflating
or releasing air as necessary when tires go over or
under specified air pressure levels.
Both systems have advantages and disadvantages. By understanding the differences between
them, how they can improve maintenance costs
and downtime, and the future of tire pressure
monitoring and management, fleets will be able
to choose the best system to suit their needs.

TPMS versus ATIS

As far back as the 1970s, the National Highway
Traffic Safety Administration (NHTSA) has looked
at the benefits of TPMS. It wasn't until 2000, however, that the U.S. Congress officially mandated that
passenger vehicles weighing under 10,000 lbs must
be equipped with TPMS. This became known as
the Tire Recall Enhancement, Accountability, and
Documentation (TREAD) Act of 2000. The act went
into effect for all light passenger vehicles sold on
or after September 1, 2007.
Currently, no laws exist enforcing medium or
heavy duty fleet vehicles (Classes 3-8) to have any
sort of tire pressure monitoring or management
system installed on their vehicles - only light duty
fleet vehicles (Classes 1 and 2) are affected by the
TREAD Act. However, by utilizing the TPMS technology, fleets are able to extend tire life, increase
fuel economy, reduce maintenance costs, and
improve safety.
While most light vehicle TPMS sensors only
monitor pressure, commercial vehicle sensors
include more.
"Tire pressure monitoring systems [in commercial vehicles] have a sensor that monitors pressure
and temperature in each tire and wheel assembly
and identifies the wheel position on which they
are installed," explains Peggy J. Fisher, president
of commercial vehicle TPMS provider TireStamp
Inc. "They wirelessly communicate to the driver
when problems arise, [and] if the TPMS is integrated into a telematics service, alerts are sent to
the fleet. More advanced TPMS 2.0 systems send
alerts to the fleet, provide useful reports, and
enable managers to get a fleet-wide overview of
the health of their tires."
Having this information is crucial because it
gives fleets the knowledge they need to prevent
issues before such issues become critical, helps
predict their future tire needs, and assists with
assessing the type and quality of the maintenance
being done on tires.

October 2019 | VehicleServicePros.com

35


http://www.VehicleServicePros.com

Fleet Maintenance

Table of Contents for the Digital Edition of Fleet Maintenance

Uptime: Are all systems secure?
Cover Story: Connecting to the future
Vehicles: Engine trends impacting performance and fuel efficiency
In the Bay: Understanding tire pressure monitoring and management systems
Shop Operations: How fleets can benefit from RCM
Management: Are you a good global citizen?
Economic Outlook: WDTKAWDTKI?
Powertrain: What are fault code action plans, and how can they help improve the vehicle diagnostic process?
Braking & Collision Avoidance: How will electric vehicles impact commercial truck braking systems?
Fleet Parts & Components
Tools & Equipment
Classifieds
Guest Editorial: Differences servicing air disc brakes versus drum brakes
Fleet Maintenance - 1
Fleet Maintenance - 2
Fleet Maintenance - 3
Fleet Maintenance - 4
Fleet Maintenance - 5
Fleet Maintenance - 6
Fleet Maintenance - 7
Fleet Maintenance - Uptime: Are all systems secure?
Fleet Maintenance - 9
Fleet Maintenance - Cover Story: Connecting to the future
Fleet Maintenance - 11
Fleet Maintenance - 12
Fleet Maintenance - 13
Fleet Maintenance - 14
Fleet Maintenance - 15
Fleet Maintenance - 16
Fleet Maintenance - 17
Fleet Maintenance - 18
Fleet Maintenance - 19
Fleet Maintenance - Vehicles: Engine trends impacting performance and fuel efficiency
Fleet Maintenance - 21
Fleet Maintenance - 22
Fleet Maintenance - 23
Fleet Maintenance - 24
Fleet Maintenance - 25
Fleet Maintenance - 26
Fleet Maintenance - 27
Fleet Maintenance - 28
Fleet Maintenance - 29
Fleet Maintenance - 30
Fleet Maintenance - 31
Fleet Maintenance - 32
Fleet Maintenance - 33
Fleet Maintenance - In the Bay: Understanding tire pressure monitoring and management systems
Fleet Maintenance - 35
Fleet Maintenance - 36
Fleet Maintenance - 37
Fleet Maintenance - 38
Fleet Maintenance - 39
Fleet Maintenance - 40
Fleet Maintenance - 41
Fleet Maintenance - 42
Fleet Maintenance - 43
Fleet Maintenance - Shop Operations: How fleets can benefit from RCM
Fleet Maintenance - 45
Fleet Maintenance - 46
Fleet Maintenance - 47
Fleet Maintenance - 48
Fleet Maintenance - 49
Fleet Maintenance - Management: Are you a good global citizen?
Fleet Maintenance - Economic Outlook: WDTKAWDTKI?
Fleet Maintenance - Powertrain: What are fault code action plans, and how can they help improve the vehicle diagnostic process?
Fleet Maintenance - 53
Fleet Maintenance - Braking & Collision Avoidance: How will electric vehicles impact commercial truck braking systems?
Fleet Maintenance - 55
Fleet Maintenance - Fleet Parts & Components
Fleet Maintenance - 57
Fleet Maintenance - 58
Fleet Maintenance - 59
Fleet Maintenance - 60
Fleet Maintenance - 61
Fleet Maintenance - Tools & Equipment
Fleet Maintenance - 63
Fleet Maintenance - 64
Fleet Maintenance - 65
Fleet Maintenance - 66
Fleet Maintenance - 67
Fleet Maintenance - 68
Fleet Maintenance - 69
Fleet Maintenance - 70
Fleet Maintenance - 71
Fleet Maintenance - 72
Fleet Maintenance - Classifieds
Fleet Maintenance - Guest Editorial: Differences servicing air disc brakes versus drum brakes
Fleet Maintenance - 75
Fleet Maintenance - 76
Fleet Maintenance - I1
Fleet Maintenance - I2
Fleet Maintenance - S1
Fleet Maintenance - S2
Fleet Maintenance - S3
Fleet Maintenance - S4
Fleet Maintenance - S5
Fleet Maintenance - S6
Fleet Maintenance - S7
Fleet Maintenance - S8
Fleet Maintenance - S9
Fleet Maintenance - S10
Fleet Maintenance - S11
Fleet Maintenance - S12
Fleet Maintenance - S13
Fleet Maintenance - S14
Fleet Maintenance - S15
Fleet Maintenance - S16
Fleet Maintenance - S17
Fleet Maintenance - S18
Fleet Maintenance - S19
Fleet Maintenance - S20
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