Bendix Commercial Vehicle Systems WINGMAN ACB - Manual (Page 22)

22
Special Alerts
Brake Overuse Warning – The Bendix ® Wingman ® ACB system
provides a warning when the system
uses 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.
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. The driver
should use appropriate gearing and brake techniques 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.
• 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 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 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.
Wingman ACB Diagnostic Trouble Codes
The Wingman ACB system is monitored and if any malfunction is detected,
a Diagnostic Trouble Code (DTC) will be set and the driver will be alerted.
The exact alert given depends on the vehicle manufacturer: refer to your
vehicle operator’s manual and the Bendix Service Data Sheet SD-13-4962
for more information.
Potential False Alerts
The latest Wingman ACB system should have significantly fewer false
alerts than earlier systems. Radar technology is not perfect, and false
alerts sometimes occur. Radar misalignment will likely lead to increases
in false alerts. Drivers should take into account the road conditions, and