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637_106
Function B
System characteristics of the turn assist function
• Turn assist is available only at speeds below 10 kph.
• The indicators must be activated.
• In the case of right-hand-drive vehicles, the system only works
when turning left.
• In the case of left-hand-drive vehicles, the system only works
when turning right.
• This is indicated audibly and visually.
Deactivating turn assist
If Audipresense is switched o in the MMI, turning assist is not
available. The system can be reactivated in the MMI. Depending on
country version 1), a deactivated Audipresense system (and thus
turn assist) is automatically re-activated when the ignition is
turned o and on again.
1)
Not available in all countries.
637_041
Audi pre sense
The driver of vehicle (E) wants to turn right and indicates by actu-
ating the left indicator. Vehicle (E) is travelling slower than 10 kph.
As mentioned initially, Audi pre sense front continuously monitors
the trac ahead of the vehicle with the aid of ACC and the front
camera. As a result, Audipresensefront knows that another
vehicle (A) is approaching in the oncoming direction.
Audipresensefront also knows that the driver is planning to turn
left (from the actuation of the indicator).
In this case, Audipresensefront would automatically initiate
emergency braking by the ABScontrol unit J104 with the result
that vehicle (E) is brought to a halt in its own lane. The driver is
alerted visually and audibly to the fact that the vehicle is braking
automatically
1)
. If the vehicle has automatically brought the
vehicle to a halt without driver input, further audible signals will
sound. These signals alert the driver to the fact that he/she must
actively take control of the vehicle (e.g. by braking).
If Audipresense detects that a critical situation would occur due
to the current turning manoeuvre, hydraulic brake assist is recon-
figured for the ABScontrol unit J104. In addition, the deployment
algorithms for hydraulic brake assist are adjusted. This action
ensures the rapid response of the brake during a braking manoeu-
vre. If the driver of vehicle (E) were now to continue the turning
manoeuvre and move o, Audi pre sense front would detect this
based on the information provided by the speed sensors of
ABScontrol unit J104.
In the AudiQ7 Audipresensefront has been to upgraded include
turn assist. In the following example it is assumed that the trac
situation involves vehicles driving right-hand side of the road.
In a driving situation involving vehicles driving left-hand side of the
road turn assist helps to driver to turn right.
Turning assist