freightliner M2 Plus 2023 Manual page 99

A vehicle equipped with ABA may:
•
react more quickly than a driver to an object in
the vehicle's path of travel;
•
perform emergency braking;
•
react to moving people with a warning and
emergency braking.
ABA may minimize the risk of a front-end collision
with a moving or stationary vehicle and pedestrians.
If ABA detects the risk of a front-end collision, it
issues an audible and visual warning. If the risk
persists, ABA automatically initiates partial braking of
the vehicle. If the driver does not react to the
warnings and partial brake application, ABA
automatically initiates a full emergency brake
application.
ABA is not designed to detect and react to vehicles
driving in a different lane.
ABA may not react to narrow vehicles, like
motorcycles, driving in front of the vehicle.
A driver should always be aware of possible hazards
and be prepared to engage the service brakes if the
ABA system warns of a possible pending collision.
ABA does not automatically adapt to road and traffic
conditions. If ABA issues no visual and/or acoustic
warning in a critical situation:
•
it is suppressed;
•
it has failed;
•
it has not recognized the danger of the
situation.
ABA may also issue warnings where no risk exists.
An alert and conscientious driver should be able to
easily validate an ABA warning, and, if necessary,
override a false-positive ABA braking event.
Activating and Deactivating Active
Brake Assist
The M2 Plus has an ABA OFF physical switch
option, to support specific operations where an ABA
false positive may occur, or conditions where the
ABA activation is not required. See
When the ABA function is turned off by the driver the
physical switch LED logo illuminates in red, and the
ICUC presents a popup warning to the driver
showing the ABA not available status. See
The ABA will remain off until the driver deactivates
the switch, or after a complete key cycle turns the
ABA feature back ON.
Active Brake Assist Collision Warning
and Emergency Braking
NOTE: A driver can override ABA if, during an
ABA braking event, the driver presses the
accelerator pedal beyond the pressure point
(kickdown).
If there is a collision risk, ABA engages in the
following cascade of warnings:
1.
Fig. 6.7.
2.
Fig. 6.8.
Detroit Assurance 5.0
12/ 12 /2022
Fig. 6.7, ABA OFF Switch
09/15/2016
Fig. 6.8, ABA Not Available Caution
Issues Warnings: the radio and/or hands free
system is muted, the vehicle issues a warning
beeping, and an ABA collision warning window,
shown in Fig. 6.9, appears on the driver display.
Engages in Partial Braking: ABA brakes the
vehicle with around 50 percent of the vehicle's
maximum braking power.
ABA
OFF
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6.6