Volvo V90 Owner's Manual page 308

DRIVER SUPPORT
Adaptive cruise control*
The adaptive cruise control (ACC
driver to maintain an even speed combined with
a pre-selected time interval to the vehicle ahead.
An adaptive cruise control provides a more relax-
ing driving experience on long journeys on motor-
ways and long straight main roads in smooth traf-
fic flows.
The camera and radar unit measures the distance to the
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vehicle ahead .
The driver selects the desired speed and a time
interval to the vehicle ahead. If the camera and
radar unit detects a slower vehicle in front of the
car, the speed is adapted automatically via the
preset time interval to the vehicle. When the road
36 Adaptive Cruise Control
NOTE: The illustration is schematic - details may vary depending on car model.
37
306
is clear again the car returns to the selected
speed.
36
) helps the
WARNING
The adaptive cruise control function is
•
supplementary driver support intended to
facilitate driving and make it safer – it
cannot handle all situations in all traffic,
weather and road conditions.
The driver is advised to read all sections
•
in the Owner's Manual that relate to this
function to learn about factors such as its
limitations and what the driver should be
aware of before using the system (see
the list of links at the end of this article).
The adaptive cruise control is not a sub-
•
stitute for the driver's attention and
judgement. The driver is always responsi-
ble for ensuring the car is driven in a safe
manner, at the appropriate speed, with an
appropriate distance to other vehicles,
and in accordance with current traffic
rules and regulations.
NOTE
This function can come as either Standard or
an Option depending on the market.
Adaptive Cruise Control regulates the speed with
acceleration and braking. It is normal for the
brakes to emit a low sound when they are being
used to adjust the speed.
The adaptive cruise control aims to control the
speed in a smooth way. In situations that demand
sudden braking the driver must brake himself/
herself. This applies in cases of large speed dif-
ferences or if the vehicle in front brakes sud-
denly. Due to the limitations of the radar unit,
braking may come unexpectedly or not at all.
The adaptive cruise control aims to follow the
vehicle ahead in the same lane at a time interval
set by the driver. If the radar unit cannot see any
vehicle in front then the car will instead maintain
the speed set and stored by the driver. This also
takes place if the speed of the vehicle ahead
increases and exceeds the stored speed.
The following applies for cars with automatic
gearbox:
Adaptive Cruise Control can follow another
•
vehicle at speed from 0 km/h up to
200 km/h (125 mph).
The following applies for cars with manual gear-
box:
The Adaptive Cruise Control can follow
•
another vehicle at speeds from 30 km/h
(20 mph) up to 200 km/h (125 mph).
* Option/accessory.