A specific type of vehicle suspension system commonly found in heavy-duty trucks manufactured by Peterbilt. This setup utilizes air springs and a trailing arm design to provide enhanced ride quality and axle articulation compared to traditional leaf spring suspensions. This system is crucial for maintaining stability and driver comfort, particularly when operating over uneven or challenging terrain.
The integration of air springs allows for variable spring rates, adapting to different load conditions and minimizing vibrations transmitted to the chassis and cab. Its trailing arm geometry improves axle control, reducing wheel hop and improving traction. Historically, the design has been refined over the years to enhance durability, reduce maintenance requirements, and improve overall vehicle performance. These factors contribute significantly to a more comfortable and efficient operation, increasing the lifespan of the vehicle and reducing driver fatigue.
