Meritor WABCO adds automatic trailer lift axle control system

Meritor WABCO adds automatic trailer lift axle control system

Meritor Wabco has added an automatic trailer lift axle system to its SmartTrac portfolio of stability control systems.

The system integrates with Meritor Wabco’s trailer roll stability support (RSS) and anti-lock braking systems (ABS), resulting in a more cost-effective solution compared to stand-alone lift axles requiring separate electronic control units, the company said. It is fully automated, which means there is no need to adjust the axle position manually.

The system, which can control multiple trailer lift axles, complies with U.S. Dept. of Transportation legal load limits.

“The SmartTrac automatic trailer lift axle control system automatically raises or lowers the axle based on cargo weight,” said Pat Kealy, director-trailer systems and aftermarket for Meritor Wabco. “This system helps reduce fuel costs, tire wear, vehicle downtime and labor and maintenance costs while also increasing wheel-end and brake life.”

It also is compatible with any air ride-equipped lift axle suspension on a trailer and can be configured in several ways. Axles can be lowered automatically when the trailer is parked. A manual switch can be added to give drivers the ability to lower an axle. Pressure limits are defined using Meritor Wabco’s TOOLBOX RSS configuration to comply with local road laws.

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