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System description
System description
5 System description
This chapter describes the conguration and how the OptiTire system operates. Furthermore, you will
also obtain information concerning technical reports for installing and retrotting.
5.1 Basic OptiTire function
A B A A
B
A A
C
A1 A2 A3 B C
LEGEND
A Sensors:
External sensor WM2 (A1) or internal sensor WIS (A2) or internal sensor SMS (A3)
B Electronic Control Unit (ECU)
C Display
Measurement
The tire pressure is measured by sensors, the values obtained are repeatedly transmitted to the
electronic control unit via a radio signal
The actual tire pressure of each wheel is transmitted to a central ECU. The signals of all wheels are
evaluated there and the information is conveyed to a display in the driver's cab.
Evaluating
In the ECU, the measured values are compared to one another and to standard values stored as a
parameter set in the ECU.
A single OptiTire ECU can monitor up to 20 wheels + 2 spare wheels. Dual tires are measured
separately.
A warning signal is activated in the event of a critical deviation.
Normal pressure uctuations due to driving style, outside temperature changes or load are ltered.
The OptiTire system tolerates these typical pressure uctuations even on poor road sections or with
uneven load.
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