BENDIX BW2703 User Manual

The Bendix® TABS-6 Advanced and TABS-6 Advanced MC™Systems

Questions and Answers about Bendix Stability Systems for Trailers

February, 2011

1. What is trailer roll stability?

A trailer roll stability system is designed to help drivers maintain control of their vehicle in two ways. First, it senses conditions that may lead to a rollover. And second, it intervenes by applying the trailer brakes automatically, to help keep the vehicle stable - typically before the driver realizes inter vention is needed.

2. What are my options with Bendix trailer roll stability systems?

Bendix has two approaches to trailer roll stability (TRSP):

 Bendix

popular ABS design used on over 80% of North American trailers. It utilizes two wheel speed sensors positioned on the right and left of the axle. The compact electro-pneumatic controller has only a single modulator, along with an internal lateral acceleration sensor to detect and react to potential rollover conditions. Bendix has taken this approach specifically for North America to create a unique, simple and affordable approach to trailer roll stability systems.

 The Bendix

stability (TRSP) technology as Bendix for different axle configurations that utilizes two – or three – separately controlled modulators. The Bendix trailer, or it can be configured to control independent axles on a given vehicle. This system is available on configurations ranging from 2S/2M (2 wheel speed sensors/2 modulators) up to 6S/3M (6 wheel speed sensors/3 modulators.)

3. How does Bendix® TABS-6 Advanced compare to competitive systems?

 It’s the first single channel trailer roll stability system - Utilizing only 2 wheel speed sensors and

1 modulator (2S/1M), Bendix most popular trailer ABS configuration, 2S/1M.

 Simple package – All key components are housed in the Bendix® TABS-6 Advanced unit –

modulator and Electronic Control Unit (ECU). Only wheel speed sensors are separated – keeping connections (wires and air hoses) to a minimum. The locking connector covers provide a second line of defense against water splash and road grime.

 Easy to Install – The Bendix® TABS-6 Advanced system is the only trailer stability system that

will mount directly to the air tank. Or, the unit can also be easily installed on a cross member or frame rail.

 Easy to Maintain – Maintenance for the trailer stability system is no more than what is needed for

a standard trailer ABS system. Components are replacement only, requiring no repair. Diagnostics are simple – over the power lines, using PLC communication – along with the latest version of the

This document is designed to assist you in the stability system decision process, not to serve as a performance guarantee.

No system will prevent 100% of the incidents a driver may experience. This information is subject to change without notice.

TABS-6 Advanced is a single channel (2S/1M) stability system based on the most

TABS-6 Advanced MC™ system provides fleets with the same trailer roll

TABS-6 Advanced MC platform allows for distinct control of either side of the

TABS-6 Advanced adds no additionally mounted components to the

TABS-6 Advanced, along with an adaptable solution

traditional Bendix® ACom® ABS diagnostic software (Version 6.3.1 or higher) available online for download or on CD. Blink codes can also be read out via trailer mounted warning lamp, no additional diagnostic tools required. Other diagnostic tool options include the Bendix Remote Diagnostic Unit (TRDU

™

) or the trailer mounted Bendix® Trailer Information Module

(TIM).

 Easy to Retrofit – Almost any fleet can transition from trailer ABS to trailer roll stability quickly

and easily with Bendix configuration for your specific trailer application. Remove the old unit, and install the new TABS-6 Advanced unit, along with the appropriate Bendix simple air line to the suspension to enable trailer load sensing. (Trailers without ABS can also be retrofit to Bendix TABS-6 Advanced or TABS-6 Advanced MC

TABS-6 Advanced. Just select the correct TABS-6 Advanced

WS-24™ wheel speed sensors and a

™

with minimum additional

effort.).

4. What can drivers expect when operating trailers equipped with Bendix trailer stability systems?

The Bendix® TABS-6 Advanced and TABS-6 Advanced MC systems are designed to intervene automatically when the system detects conditions that may lead to a trailer roll over.

Drivers may feel the vehicle slow down as the brakes are applied on the trailer. At this time, the industry has not implemented the use of warning lights on the dash or on the trailer designed to indicate when a stability event has occurred. Information regarding stability events is stored on the Bendix TABS-6 Advanced or TABS-6 Advanced MC system Electronic Control Units (ECUs).

5. What information (data) is available off the system?

Using the Bendix TIM, fleets can view information directly on the unit manually, or direct download via ACom diagnostic software to a computer. If the fleet employs a telematics provider, the information may be available real-time if the Bendix TIM is connected to a wireless or satellite modem. Using Bendix

ACom® diagnostic software, information can be downloaded directly from the

ECU.

Currently, the following data is available in real-time from the Bendix TIM:

 Current warning lamp status  Current fault information  Odometer reading  Axle load

In addition, the following details are also available for download from the Bendix

TABS-6 Advanced

and TABS-6 Advanced MC system ECUs:

 Fault history  Odometer and trip odometer  Trailer roll stability system intervention histogram  Brake application histogram

6. Will the Bendix® TABS-6 Advanced trailer stability systems prevent all rollovers?

No stability system will prevent all rollovers as a variety of factors are involved. Bendix® TABS-6 Advanced and TABS-6 Advanced MC system may not successfully mitigate rollovers when the following circumstances occur:  Speed greatly exceeds the ability of the system to provide a meaningful intervention (traveling too

fast for conditions) or when the physical limitations (combination of speed and lateral acceleration or “sharpness of turn”) are exceeded for a particular situation;

Trailer

This document is designed to assist you in the stability system decision process, not to serve as a performance guarantee.

No system will prevent 100% of the incidents a driver may experience. This information is subject to change without notice.

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