WABCO TAILGUARD, Описание системы

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Vehicle requirements
4 Vehicle requirements
Any commercial vehicle with a 24 V supply voltage can be equipped.
Commercial vehicles with 12 V can be equipped if a permanent supply voltage
of more than 11.5 V is ensured.
TailGUARD is approved for application in vehicles of classes M3, N2 and N3
with compressed air systems in accordance with regulations in
71/320/EEC or ECE-R13.
The extension for implementing autonomous braking can be applied as follows:
„
Software version from EX010314 (as of 15/ 2014)
Conventionally braked vehicles with or without ABS, but not vehicles with an
electronic braking system (EBS).
The braking system must be equipped with an ALS system according to
regulations mentioned above.
„
Software version from EX010405 (as of 41/ 2015)
Additional vehicles with an electronic braking system (EBS) from WABCO up
to EBS3.
„
Software version from EX010453
Additional braking via the EBS system in the towing vehicle (via TailGUARD
interface): Daimler Econic Euro 6, optional extra
„
Input for control of the towing vehicle brake via digital signal
„
Ignoring the control signal of the towing vehicle brake at > 15 km/h
through the towing vehicle
„
Provision of a feedback status signal that brake control is executed by the
towing vehicle
„
Warning lamp for indicating a fault
Braking via separate valves:
When connecting TailGUARD to the braking system, it must be ensured,
for example, that the system's response times continue to meet legal
requirements.
The permissible braking system pressure for TailGUARD with autonomous
braking must not exceed 13 bar.
The speed signal in accordance with ISO 16844-2 (C3 signal) must be
provided in the vehicle as information on the current vehicle speed. The
vehicle manufacturer must not have prohibited use of this signal for external
systems.
ECE-R13 approval of the system is only possible in combination with an
indication of the distance to objects and the system status. The Trailer Remote
Control (display and control unit) can be installed for this purpose ( standard
for braking intervention via separate valves ). Alternatively the system status
can be indicated by means of the TailGUARD warning lamp and the distance
to an object by means of a display in the instrument panel or via separately
installed indicator lamps ( standard for brake intervention via the TailGUARD
interface in the truck ).
Vehicles equipped to draw a trailer must also be equipped with a control unit for
permanent deactivation of the system.
If the towing vehicle is equipped with the Trailer Remote Control for indicating
the distances of objects in accordance with the approval report, a towed vehicle
must not access the Trailer Remote Control. The Trailer Remote Control must
be connected in a way that rules out any communication between the trailer’s
Electronic Extension Module and the Trailer Remote Control (install throttle lines
to suppress signals from the trailer or – if the towing vehicle always drives with
the same trailer – or deactivate communication with Trailer Remote Control in
the trailer parameters.)