BENDIX SD-13-4986 Manuel D’Utilisation

Page de 64
4
• Bendix
®
 YAS‑60
 or YAS‑70X
 Yaw Rate/Lateral 
Acceleration Sensors (typically mounted to a cross‑
member near the back of the vehicle cab).  See 
Figure 5.
•  Brake Demand Sensors (installed in the primary 
and secondary delivery circuits)
• 
A Load Sensor (typically installed in the suspension 
air bag)
• 
An additional Modulator Valve (Bendix
®
 M‑40QR
 or 
M‑40HF
 Pressure Modulator Valve) that controls 
the pressure applied to the trailer brakes during a 
system intervention
The Bendix
®
 ESP
®
 EC‑80
 Controller's ATC function 
utilizes the following additional components:
• 
A drive axle Traction Control Valve (may be integral 
to the service brake relay valve or a stand‑alone 
device)
• 
A dash‑mounted ATC Status/Indicator Lamp
• 
A J1939 serial communication Control Module 
•  A J1939‑ or ECU hardware‑provided Stop Lamp 
Switch Input
•  An optional ATC Mud/Snow Switch (sometimes 
referred to as an ATC off‑road switch)
Yaw/Lateral 
Accelerator Sensors
(Two examples 
shown.)
Brake Demand/ 
Load Sensor
FIGURE 5 - YAW AND BRAKE DEMAND/LOAD SENSORS
The Bendix ESP EC‑80 Controller's Hill Start Aid function 
utilizes the following additional components:
• 
A Bendix
®
 AT‑3
 Traction Control Valve
• 
A dash‑mounted Hill Start Status/Indicator Lamp
• 
A dash‑mounted Enable/Disable Switch
• 
A Bendix
®
 RV‑3
 Pressure Reducing Valve
• 
A Bendix
®
 DC‑4
®
 Double Check Valve
Bendix
®
 RV-3
Pressure 
Reducing Valve 
Bendix
®
 AT-3
Traction Control 
Valve 
Bendix
®
 DC-4
®
Double Check 
Valve
FIGURE 6 - ADDITIONAL VALVES NECESSARY FOR THE 
HILL START AID FEATURE
BENDIX
®
 ETRAC
 AUTOMATED AIR 
SUSPENSION TRANSFER SYSTEM
The Bendix
®
 eTrac
 automated air pressure transfer system 
is used on 6 x 2 semi‑tractors that feature Bendix
®
 ATC 
and ESP Antilock Brake Systems (ABS).  This system 
complements the Bendix
®
 SMART ATC
 traction control  
feature of our ABS system to provide improved traction at 
low speeds (e.g. pulling away on an inclined ramp, or in 
slippery conditions such as mud or snow‑covered surfaces, 
etc.)  When active, the Bendix eTrac system vents — or 
“dumps” — the air pressure of the tag axle suspension 
air bags, and increases the air pressure in the drive axle 
suspension air bags to a pre‑determined maximum.  This 
action helps the drive axle to gain more traction.
See SD-13-21021 for more information about the Bendix
®
 
eTrac
 Automated Air Suspension Transfer System.
ECU MOUNTING
The Bendix ESP EC‑80 Controller is not protected against 
moisture, and must be mounted in an environmentally 
protected area.
All wire harness connectors must be properly seated.  The 
use of secondary locks is strongly recommended.
The Bendix ESP EC‑80 Controller utilizes connectors from 
the AMP MCP 2.8 product family.
HARDWARE CONFIGURATIONS
Bendix ESP EC‑80 Controllers support applications up to 
six sensor/six modulator (6S/6M) installations with ATC 
and drag torque control.  They can also support Hill Start 
functions.  All 12 volt models support Power Line Carrier 
(PLC).  24 volt models do not support PLC. See Figure 7 
for more details.