WABCO Takes Easy-Stop ABS a Step Further

Nov. 1, 2000
A trailer antilock braking system (ABS) that does more than combat wheel lockup has been introduced by Meritor WABCO Vehicle Control Systems.The next

A trailer antilock braking system (ABS) that does more than combat wheel lockup has been introduced by Meritor WABCO Vehicle Control Systems.

The next generation of WABCO's Easy-Stop trailer ABS will come standard with a notebook feature that will record critical information about the trailer and its history, storing it in the ABS electronic control unit. A free-form text segment of the notebook feature will enable the truck operator to record notes regarding trailer activity. Data stored in the ABS will be accessible through PC diagnostics. An electronic odometer also will be available.

This ABS will be offered in three levels: base, standard, and premium. The premium level will provide four generic inputs and outputs for powering various trailer accessories. All three levels will meet the National Highway Traffic Safety Administration mandate for an in-dash warning light that indicates trailer malfunction. The new rule takes effect March 1, 2001.

The Easy-Stop system uses power line carrier (PLC) communications technology to allow data and power to be transmitted simultaneously through the trailer power, or "blue," wire. WABCO said this design will enable it to meet the federal requirement without additional wiring or modifying the existing seven-pin trailer connector.

This new system also features an integrated ABS modulator valve design for two-modulator systems, which WABCO says reduces the number of overall components needed. The system will be available to North American trailer manufacturers by January 2001.

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