Audi A8 2019 - Page 91

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Process diagram showing how AudiPresensefront responds to pedestrians/cyclists
Visual advance warning
and/or indication of cor-
rective action
Audible warning beep
Prefilling of the brake
system
Reconfiguration of
hydraulic brake assist
Acute warning by braking
impulse
Target braking
Closing of the side
windows apart from a
residual gap
Closing the panoramic
sunroof
Partial tensioning
Driver take-over prompt
Key:
System characteristics of Audi pre sense front
› If an emergency braking maneuver is initiated by the
vehicle, Audi pre sense city can help reduce the vehicle's
speed by up to 37.2 mph (60 km/h).
› Depending on the situation, ABS/ESC Control Module
J104 can instruct the hazard warning flashers (emergency
braking warning)
1)
to be activated.
› If the driver takes clear evasive action or applies the
brakes during the collision warning or corrective braking
phases of an Audi presensefront action, the current
actions of Audipresensefront (for example,early
warning) will be suppressed or cancelled. If the obstacle
is no longer relevant after this, Audipresensefront will
cease to provide driver assistance.
› If Audipresense is deactivated in the MMI, the warning
and braking functions of Audipresensefront will be
deactivated, too.
› If ESC is set to “o”, certain functions of
Audipresensefront will only be available to a limited
extent or will be unavailable.
› If the functionality of Driver Assistance Systems Front
Camera R242 is impaired due to bad visibility and light
conditions such as darkness or fog, Audipresensefront
will only be available to a limited extent or will be
unavailable.
› If driver is not wearing a seat belt, certain functions of
Audipresensefront will only be available to a limited
extent or will be unavailable.
› The front camera for driver assist systems self-initializes
after the ignition is switched on. It may, therefore, be
the case that Audipresensefront is not available for up
to 20seconds after turning on the ignition. The
non-availability Audi pre sense front is indicated by the
initialization lamp.