Bendix Commercial Vehicle Systems WINGMAN ACB - Manual (Page 6)

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Brake Overuse Alert - The Bendix ® Wingman ®
ACB system provides a warning when the system
is intervening and using the foundation brakes
excessively. Overuse of the foundation brakes can
lead to the brakes overheating and a potential loss
of braking performance caused by brake fade.
Using
cruise control on downhill runs will cause this alert to be activated.
Approach grades as you would normally, with the appropriate
gear selected and at a safe speed.
Cruise control should NOT be used on downhill grades.
When the system detects brake overuse, depending on the vehicle
manufacturer, a text message will be displayed on the dashboard
and an audible alert will be activated. The driver should intervene
immediately.
• Once the brake overuse alert is activated, certain driver
interventions that cancel cruise control – like stepping on the
brake pedal or switching off cruise – will discontinue the alert.
Following an overuse alert, the driver should not reset the cruise
control for at least 20 minutes. This gives the brakes time to cool
down. If the driver chooses to reset cruise control during that
20 minute period, Wingman ACB interventions will be limited
to de-throttling and the engine retarder only. The system will
automatically disable all Wingman ACB system foundation brake
applications for at least 20 minutes.
• If the system does not detect a driver intervention within 15
seconds after the brake overuse alert sounds, it will shut itself
off and set a Diagnostic Trouble Code (DTC). The driver will
continue to receive alerts, but ALL Wingman ACB interventions
(de-throttling, engine retarder or brake applications) will be
disabled until the next ignition cycle.
Note: In all cases, the driver still has the ability to apply the foundation
brakes if necessary. The driver should take care since overheated
brakes may reduce the vehicle’s braking capability.