Troubleshooting guide

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For more information, visit www.bendix.com or www.foundationbrakes.com • 1-800-AIR-BRAKE (1-800-247-2725)
Stability System Effectiveness
During high-speed maneuvers in potential rollover
situations, the tandem tires of the tractor and trailer can
lift off the ground. If that occurs, the steer axle brakes
contribute a much larger percentage of available braking
capacity because the wheels that are no longer in contact
with the road surface can not provide braking force.
The ability to apply steer axle brakes individually is a
fundamental requirement for yaw (spin) control. By
applying brakes at any one or all of a vehicle’s “Four
Corners,” the stability system may be able to correct
the vehicle’s orientation, mitigating the potential for a
jackknife, spin-out or slide.
With the potential regulatory requirements for larger front
brakes in the future, the steer axle’s braking contribution
to a vehicle’s overall braking capacity and potential
stability margin is expected to increase.
ABS / Stability System Interaction
With Bendix Advanced ABS, the ABS system is given
“priority” at the wheel ends to manage wheel slip for
optimal braking. The ABS system functions similarly
whether the stability system or the driver applies the
brakes.
Learn more about Advanced ABS, when you
visit the ABS area of www.bendix.com, or call
1-800-AIR-BRAKE (1-800-247-2725).
Advanced ABS Features
Sense Potential Situations Quickly and Completely
Bendix
®
ESP
®
Stability
System
Speed Measures the vehicle's velocity
Lateral Acceleration Measures the vehicle's tendency to roll
Steering Captures the driver's intended direction
Brake Demand Accurately supplements the driver
Yaw Rate
Measures vehicle spin, and compares it to the
steering intention and expected rate of turn
Reaction Time and Robustness
Multi-Level Sensing
Leading indicators aid reaction. Cross
checking - helps avoid false interventions
Tuning
Matches data to vehicle confi guration
and handling characteristics
Braking Control
All Axle Maximizes the potential to recover
Individual Wheel Aids in correcting the vehicle's orientation