3
IVTM
System Description
12
3.4 Configuration for trailers
Transmission types
Trailer and towing vehicle must be equipped with IVTM for displaying trailer IVTM
data in the diver's cab.
Alternatively, trailer data can display in towing vehicle only then when it is equipped
with an integrated display. When the trailer is also equipped with TCE or TEBS
then data transfer can be made to the towing vehicle central computer via CAN.
The following illustration compares both transmission types, wireless connection
and CAN bus, with each other.
fig. 3-2: Data transfer wireless connection (top) and CAN
A
IVTM display
B
Wheel modules
C
IVTM-ECU
D
Wireless connection
E
IVTM Trailer ECU
F
Integrated display
G
Central computer
H
TEBS/TCE
Stand-alone trailer towing operation
If the trailer should be independently equipped with IVTM, then the pressure re-
lease can be carried out via telemetry or the vehicles own display. When using the
IVTM display, it requires a special box for splash protection or another protected
attachment location. The WABCO SmartBoard can be installed as an alternative.
The driver cannot receive fault messages without IVTM support while the towing
vehicle is in motion.
IVTM with several trailers
Equipment of tractor/trailer combinations with more than one trailer is possible.
Tractor/trailer combinations with two trailers can still be made with wireless con-
nections; roadtrains need CAN bus connection with special ECUs.
Please contact your WABCO partner for more information.
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