PREVOST X3-45 2011 Operator'S Manual Download

Page: 47 / 214

Controls and Instruments

The driver must apply additional braking power
when required, to avoid collision or to maintain a
safe distance from the vehicle ahead.

NOTE

If the ACB is actively decelerating or braking
the coach in an attempt to maintain the set
following distance at the moment when the
driver cancels the ACB system, the ACB
system will continue deceleration or braking
intervention until a safe following distance is
established, then will cancel.

Even though the cruise control doesn’t
operate at speeds below 30 mph (50 km/h),
the ACB system will continue deceleration or
braking intervention in an attempt to maintain
the set following distance if the coach speed
reduces to less than 30 mph (50 km/h).

•

If the vehicle ahead slows below your
cruise control’s set speed,

but then

accelerates away, and the ACB system did
not need to use the service brakes as it
managed the intervention, the coach will
automatically accelerate back to the original
cruise control set speed, and again maintain
a set following distance behind the forward
vehicle.

NOTE

The maximum radar range is approximately
500 feet (150 meters). Rain, snow, fog, ice
and other severe weather conditions may
affect the performance of the ACB system
and shorten radar range.

NOTE

As part of your pre-trip vehicle inspection,
check to see that there is no mud, snow, ice
build-up or other obstruction in front of the
radar sensor. You should inspect the radar
sensor mounting and remove any obstruction
that may impair the sensor functioning.

Driver warnings

Before using the ACB, the driver should fully

understand all the audible and visual warnings
that the system provides. Any audible warning
(beeping or tone) means that your vehicle is too
close from the vehicle ahead.

DASHBOARD TELLTALE

When ACB is turned on and a cruise speed is
set, if the forward vehicle is detected (in range)
by the radar, the FORWARD VEHICLE
DETECTED telltale light on the dashboard will
illuminate. This is an indication to the driver that
the forward vehicle is being tracked, that the
ACB is actively managing the distance between
the coach and the vehicle ahead and that the
ACB system may automatically intervene to
maintain the set following distance.

FORWARD VEHICLE DETECTED telltale light

There are three types of warnings with this
telltale light:

•

Green: The forward vehicle is detected (in

range).

•

Flashing red: Collision alert. The forward

vehicle is to close to follow safely or a
metallic stationary object such as a stopped
or stalled vehicle in your lane of travel is
detected. The driver must intervene to avoid
a collision.

•

Solid red: ACB system malfunction. The ACB

system and the alert functions are not
available.

SPEEDOMETER LEDs

With the cruise control engaged and a cruise
speed set, a green LED illuminates above the
cruise control set speed on the speedometer.

THE CRUISE SET SPEED IS 80 km/h

With a cruise speed set, the vehicle ahead
slows moderately. The system will display to the
driver the approximate speed of the vehicle
ahead with yellow LEDs above the
speedometer.