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Pre sense front
With Audi pre sense front, the following actions can be
initiated:
•
Audible and visual early warnings.
•
Acute warning by brake jolt.
•
Pre-charging of the brake system.
•
Adaptation of hydraulic brake assist.
•
Partial braking operations I and II
•
Target braking
.
1)
•
Automatic emergency braking
•
Turn assist
.
1)
•
Collision avoidance assistance.
•
Switching on the emergency warning flashers
If the vehicle is equipped with Audi pre sense front, it also
has the following equipment and auxiliary functions.
•
ACC (Adaptive Cruise Control).
•
Front camera for driver assistance systems.
ACC uses two "long range" radar sensors each combined
with its own control module. The have a detection range of
approximately 273.4 yards (250 meters) in front of the
vehicle.
ACC units
The ACC units are installed under the front bumper cover.
Distance Regulation Control Module J428 acts as a master
control module and is connected to Distance Regulation
Control Module 2 J850 via a sub-bus system.
Driver Assistance Systems Front
Camera
R242
ACC unit with:
•
Right Adaptive Cruise Control Sensor G259
•
Distance Regulation Control Module J428
Not available in all countries.
1)
22
.
1)
.
1)
.
1)
ACC unit
637_024
ACC unit with:
•
Left Adaptive Cruise Control
Sensor G258
•
Distance Regulation Control
Module 2 J850
637_023
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