Volvo XC90 TWIN ENGINE Owner's Manual page 350

DRIVER SUPPORT
|| Pedestrians
Optimal examples of what the system regards as pedes-
trians with clear body outlines.
For optimal performance, the system function
that detects pedestrians must receive the clear-
est possible information about the body outline,
requiring the ability to identify the head, arms,
shoulders, legs, upper and lower body plus a nor-
mal human pattern of movement.
In order that it shall be possible to detect a
pedestrian there must be a contrast with the
background and this will be affected by such
things as clothes, the background and the
weather. With poor contrast the pedestrian may
either be detected late or not at all, which may
mean that warnings and braking are late or omit-
ted.
348
City Safety can also detect pedestrians in the
dark if they are illuminated by the car's head-
lamps.
WARNING
City Safety is supplementary driver support,
but it cannot detect all pedestrians in all sit-
uations and, for example, cannot see:
•
partially obscured pedestrians, people in
clothing that hides their body contour or
pedestrians shorter than 80 cm (32 in.).
•
pedestrians if the background contrast of
the pedestrians is poor - warning and
brake interventions may then be late or
not occur at all.
•
pedestrians who are carrying larger
objects.
The driver is always responsible that the vehi-
cle is driven correctly and with a safety dis-
tance adapted to the speed.
Large animals
Optimum examples of what City Safety interprets as
large animals - standing still or walking slowly and with
clear body outline.
Optimal performance requires that the system
function that detects a large animal (e.g. elk and
horse) must receive the clearest possible infor-
mation about the body outline, requiring the abil-
ity to identify the animal directly from the side in
combination with what is a normal pattern of
movement for the animal.
If parts of the animal's body are not visible to the
function's camera then the system cannot detect
the animal.
City Safety can also detect large animals in the
dark if they are illuminated by the car's head-
lamps.