Haldex EB Plus, Руководство оператора

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2
The demand pressure is then
modified using data from the air
suspension (Electronic Load
Sensing), and may be further
modified when a wheel speed
sensor detects imminent locking
of the sensed wheels (ABS) .
The output to the brakes is
exercised by the ECU control of
the EPRV's see Fig 2.
The EB
+ ECU also provides up to
5 auxillary functions such as
automatic reset-to-ride height
(COLAS ), lift axle control
(ILAS -E),retarder and Stability
control during ABS
EB
+ incorporates an odometer
facility which measures total
distance of the trailer and its
read-out is shown on a optional
EB
+ INFO CENTRE unit.
The EB + INFO CENTRE is a side of
trailer mounted unit used also for
read-out of diagnostic codes and
other information as available from
the EB
+ ECU.
The EB + also incoporates a
enhanced information storage and
retrieval facility.
For the fleet operator, a 'Fleet Log
Reader' allows the compilation of a
full history of each trailer or long
term monitoring.
For the trailer manufacturer, an
'End-of-line' Testing (EOLT) to
confirm correct performance of the
EB
+ system.
For semi and centre axle,
Air suspension trailers:-
EB+ (1M and 2M) features
♦
Brake application control for all
trailer wheels
♦
ABS - 2S/1M or 2S or 4S/2M
2 or 4 Sensors and 1 or 2
Modulators (EPRV's)
♦
Pneumatic Load sensing function
♦
CAN interface
♦
'End-of-Line' Test
♦
Fleet Log Reader
♦
Odometer function
♦
Reset-to-Ride Height (COLAS® )
♦
Lift Axle (ILAS® -E)
♦
Steer axle lock
♦
EB+ Stability (2m only)
♦
Lining Wear Indication
For Full Trailers :-
EB+ 3M (2M +1M)
A 4S/3M system with
features as above.
Your trailer has been fitted with the
latest technology Haldex Electronic
Braking System EB
+
.This system
has been specifically designed to be
effective, reliable and easy to service.
The purpose of this booklet is to
describe the components involved and
give you sufficient information to make
your use of the system easy.
The use of the diagnostic system is
described but when overhaul of the
components is required, we advise
you to refer to the full SERVICE
MANUAL which describes
replacement procedures fully.
System Description Page 2
System Layout Page 4
System Diagnostics Page 6
Warning device and Page 7
System Check
Procedure
Diagnostic System Page 9
Codes
ECU Connection Page 12
Identification
Wiring Diagram
Semi, Centre axle Trailers
Page 13
Full Trailers Page 14
Piping Diagram
Semi, Centre axle Trailers Page 15
Full Trailers
Page 18
Multimeter readings Page 19
Recommended Page 20
Maintenance
Schedules
Service Parts Page 21
General Information Page 24
User Notes Page 25
The position of the various
components is shown in Tri-axle
layout, Fig 1. The system is equally
compatible with single and tandem
axles.The EB
+
system features are,
a modular integrated construction,
an encapsulated Electronic Control
unit (ECU) and Electro pneumatic
relay valve/s (EPRV's), over-moulded
connectors, integrated pressure
transducers and a flash up-gradable
program memory.
Onset of braking is denoted by
either the presence of a demand on
the ISO11992 data link (CAN) via
the ISO7638 connector and/or by
the operation of the pressure switch
in the pneumatic control line.
Driver demand pressure is then
determined electronically either by
the data link or control line pressure
transducer within the EPRV's
assembly.
EB + = A nt i lock Brake System
+ Electronic Load Sensing
+ CAN (Controller area network
ISO11992 data link-
computer data from and to
the towing vehicle)
The system reacts to electrical or
pneumatic signal from the towing
vehicle. It electronically processes
those signals plus signals received
from other sensors on the trailer.
In response to those signals the
EB
+
regulates pressure to the brake
chambers.
Operators Guide
Concept
System Description
®
®
Contents