1.3How Does The SmarTire Trailer- Link™ TPMS System Work?
Full SmarTire® TPMS System Overview
1.The SmarTire Trailer-Link™ECU creates a wireless bubble around the trailer, allowing it to sense and transfer trailer tire data to a SmarTire®- equipped tractor.
2.Tire sensors mounted on each trailer wheel measure tire pressure and temperature every twelve (12) seconds and wirelessly transmit tire data every three to five minutes.
3.Industrially-designed for the rugged requirements of a commercial trailer chassis, the SmarTire Trailer-Link ECU can monitor up to eight (8) wheel positions when linked with a tractor with SmarTire TPMS, and more when applied as a stand alone trailer TPMS. The total number of tires monitored on both the tractor and trailer cannot exceed twenty.
4.When the tractor connects up to the trailer, the wireless transmissions of the SmarTire Trailer-Link ECU will link up to the SmarTire tractor ECU. Once the link up is achieved, the tractor SmarTire display will restart and add the additional trailer axles to the tractor display. The new axles will be indicated as trailer axles by showing a “T” in front of the axle number, e.g. T1, T2, etc.
5.Real-time tire pressure and temperature information is available to the driver on demand via the SmarTire TPMS tractor display, if equipped. An easy-to-read and simple-to-use interactive gauge that provides real- time tire status information, the SmarTire display will alert the driver to a low pressure or high temperature trailer tire condition before it becomes dangerous.
6.Trailer tires can also be monitored using the system as a stand-alone application connected to an optional trailer-mounted alert lamp.
7.The SmarTire maintenance hand tool is used to check trailer tire pressures and temperatures during maintenance inspections. It can also be connected directly to the SmarTire Trailer-Link ECU to set the trailer axle Cold Inflation Parameters (CIPs) and to configure trailer tire sensor IDs. The SmarTire maintenance hand tool improves inflation accuracy and reduces diagnostic time in order to keep every tire rolling cost-effectively. Please refer to Section 3.2 of this manual or BW2809 for detailed information on programming the SmarTire Trailer-Link ECU with the maintenance hand tool.
