Traction control apparatus and method for a tandem axle system

摘要

A traction assist system for a vehicle having a tandem-axle system includes a drive axle and a non-drive axle attached to a suspension beam on opposite sides of a pivot about which the suspension beam is rotatable. A device selectively applies a force to the suspension beam on the side of the pivot at which the drive axle is attached, such that the suspension beam tends to rotate to provide a downward force on the drive axle. The device can also apply the downward force directly to the drive axle.

主权项

1. A traction assist system for a vehicle having a tandem-axle system, the tandem-axle system including a drive axle and a non-drive axle attached to a suspension beam on opposite sides of a pivot about which the suspension beam is rotatable and a suspension pneumatic spring disposed between the non-drive axle and the vehicle, the traction assist system comprising:
a device for selectively applying a force to the suspension beam on the side of the pivot at which the drive axle is attached, such that the suspension beam tends to rotate to provide a downward force on the drive axle.