Volvo XC 90 Owner's Manual page 288

DRIVER SUPPORT
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Changing a time interval
Controls for setting a time interval
Reduce the time interval
Increase the time interval
Distance/time indicator
– Press buttons (1) or (2) to reduce or
increase the time interval.
> The distance/time indicator (3) shows the
current time interval.
In order to follow the vehicle ahead as smoothly
as possible, ACC allows the time interval to vary
considerably in certain situations. At low speeds,
when the distance to the vehicle ahead is short,
ACC increases the time interval slightly.
•
If ACC does not seem to react when it is put
in active mode, this may be because the set
286
time interval to the vehicle ahead does not
allow an increase in speed.
•
The higher the speed, the greater the dis-
tance to the vehicle ahead for a given time
interval.
•
Only use time intervals permitted by local
traffic regulations.
NOTE
•
The greater the vehicles' speed, the
greater the distance between them for a
set time interval.
•
The set time interval is also used by
Adaptive Cruise Control and Pilot Assist*.
•
Only use time intervals permitted by local
traffic regulations.
WARNING
•
Only use a time interval that is suitable in
current traffic conditions.
•
A short time interval gives the driver lim-
ited reaction time if an unexpected situa-
tion occurs in traffic.
Choosing how ACC maintains the time
interval to the vehicle ahead*
The driver can select different drive modes to
determine the way in which ACC tries to maintain
the set time interval to the vehicle ahead. This
setting is made using the DRIVE MODE control
on the tunnel console.
Select one of the following:
•
Eco
: ACC focuses on optimal fuel economy,
which may result in a longer time interval to
the vehicle ahead.
•
Comfort
: ACC focuses on maintaining the
set time interval to the vehicle ahead as
smoothly as possible.
•
Dynamic
: ACC focuses on maintaining the
set time interval to the vehicle ahead as pre-
cisely as possible, which can result in faster
acceleration and more immediate braking.
See also the article "Drive modes" for additional
information.
Related information
•
Adaptive Cruise Control (ACC)* (p. 281)
•
Starting and activating Adaptive Cruise
Control (ACC)* (p. 284)
•
Deactivating/resuming Adaptive Cruise
Control (ACC) (p. 287)
•
Passing Assistance with Adaptive Cruise
Control (ACC)* or Pilot Assist* (p. 288)
•
Adaptive Cruise Control (ACC) symbols and
messages (p. 293)
•
Distance Alert* (p. 278)
•
Drive modes (p. 388)
* Option/accessory.