Audi Q7 2017 Manual page 30

Function C
Collision avoidance assistance
Pre-charging of the brake system
Hydraulic brake assists reacts
with heightened sensitivity
Audible and visual driver warn-
ings (early warning)
In the following example vehicle (E) is approaching another
vehicle (A). Audi pre sense front has detected a critical
situation based on the information provided by the ACC
sensors or the front camera.
The following action was taken by Audi pre sense front:
• Audible and visual early warnings.
• Pre-charging of the brake system.
• Adaptation of hydraulic brake assist and the acute
warning (warning jolt), refer to function A on page 24.
26
Warning jolt
If the driver (E) takes action to evade vehicle (A) after the
acute warning (brake jolt) has been given, collision avoid-
ance assist provides assistance if needed by producing
additional steering torque. Audi pre sense front computes a
suitable evasion line based on various items of information,
such as one's own speed and the lane in which the vehicle
ahead in driving.
If vehicle (E) deviates too far from the evasion line, but is
still within certain bounds, collision avoidance assistance
will try to guide the vehicle along the evasion line by pro-
viding steering assistance. The aim is to help the driver
steer past the obstacle. This can help to prevent loss of
vehicle control while taking evasion action, provided this is
within the physical limitations of the system.
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