Bendix Commercial Vehicle Systems SmarTire Trailer-Link Op Manual - Manual (Page 7)

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Section A - System Overview
1.0 System Overview
1.1 System Components
Harnesses
Stainless Steel
Tire Straps
Trailer-Link ECU
Tire Sensors
and Cradles
Maintenance
Hand tool
Figure 1 - System Components and Hand Tool
ECU. The Electronic Control Unit (ECU) of the SmarTire Trailer-Link ™ Tire
Pressure Monitoring System receives data transmissions from individual tire
sensors mounted on each trailer wheel. The information received is compared
to user-defined settings. An alert is triggered if the system detects that a tire
is under-inflated and/or above expected temperatures.
Where the tractor is equipped with Bendix
™ SmarTire ® TPMS, the data
and alerts are communicated to a dash display along with the tractor tire
information. Alternately, where the tractor is not equipped with a SmarTire
TPMS system, the Trailer-Link system alerts the driver using an optional
trailer-mounted lamp.
Sensors. Designed for the harsh environment of a commercial truck tire,
each tire sensor is mounted in a break-away cradle for extra protection.
The tire sensor measures internal tire pressure and temperature every 12
(twelve) seconds and transmits data every three to five minutes. If the system
detects a pressure change of 3 PSI (0.206 bar) or greater, it does not wait
until the next transmission, but will transmit the data immediately.
Sensor Straps. Sensors are mounted to the surface of the rim using a
stainless steel strap, a reliable and universal method of sensor installation.
Harness. Designed to not require a separate power supply, the harness
supplies trailer ABS system power to the SmarTire Trailer-Link Tire Pressure
Monitoring System ECU.
1.2 Maintenance Tool
Maintaining tires in the yard is just as important as real-time tire information
for the driver, but many TPMS systems don’t include functionality to help
yard maintenance personnel. The SmarTire universal hand tool acts like an
“electronic billy-club” allowing maintenance personnel to wirelessly ‘ping’
each tire to measure its pressure and temperature. The SmarTire hand tool
reduces diagnostic time and helps keep every tire rolling safely and cost-
effectively. (For the Maintenance Tool manual, see BW2809.)