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Driver Assistance Systems
Adaptive Cruise Control -
ACC ( , with FCW only)
The Adaptive Cruise Control (ACC)
is part of ADAS equipments and can
only be present on cars equipped with
Front Collision Warning (FCW).
NOTE:
LKA and ABSA and all the other ADAS
systems are described in the relevant
chapters of this section.
Warning and Cautions
The ACC further increases the drive
comfort ensured by the Cruise Control
(CC). ACC can work in any type
of road: however, its use it is not
recommended in urban scenario.
Always consider that ACC is not a
safety system and is not designed to
prevent accidents.
The ACC allows driver to keep CC
active in limited or moderate traffic
conditions with no need to constantly
restore the CC.
The ACC uses a radar sensor, located
on the front grille behind the trident,
and the camera behind the internal
rear-view mirror to detect the
presence of a vehicle ahead at a close
distance and moving in the same
direction.
This vehicle, in this chapter, will
be indicated as "target vehicle" or
"vehicle ahead".
NOTE:
• If the sensor detects no vehicle
ahead, the ACC system will maintain
set steady speed.
• At the time instant the ACC sensors
detect a target vehicle, the system
keeps the time gap selected by the
driver. In the same way, the ACC
adapts the vehicle speed according to
both time gap and set speed selected
by the driver.
WARNING!
•
The Adaptive Cruise Control (ACC) is
designed to increase vehicle driving
comfort. It must not be considered
as a means replacing the required
attention of the driver. The driver is
always required to drive carefully.
The driver is always required to
pay utmost attention to driving
conditions (road, traffic, weather)
and style (speed, distance from
sensed vehicle ahead, brake use).
Driver has the full responsibility of
the vehicle therefore his attention
is crucial to keeping vehicle control
in particular when approaching
curves, rounds and situations with
heavy traffic. Failure to follow these
warnings can result in a collision and
death or serious personal injury.
•
In some driving scenarios, the ACC
could have detection problems. In
such cases, the ACC could kick in late
or unexpectedly. The driver must
be careful since his/her intervention
could be necessary.
•
It is always driver responsibility to
obey to speed limits and to keep
minimum legal distance to the
preceding vehicle foreseen for the
specific country.
•
ACC system can decelerate only with
limited braking, it cannot execute
emergency braking.
The ACC system:
• Does not activate/react in the
presence of pedestrians, bicycle and
not licensable vehicle in general,
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