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Driving
Jumpy_en_Chap06_conduite_ed01-2016
Using a camera placed at the top of the
windscreen, the system assesses the driver's
level of vigilance by identifying variations in
trajectory compared to the lane markings.
This system is particularly suited to fast roads
(speed higher than 40 mph (65 km/h)).
Fatigue detection system
Depending on version, the "Driving time
warning system" may be combined with the
"Fatigue detection system".
The system cannot, in any
circumstances, replace the need for
vigilance on the part of the driver.
Do not drive if you are tired or taking
medicines that can cause drowsiness.
Once the system considers that the behaviour
of the vehicle suggests a certain level of fatigue
or inattention by the driver, it triggers the first
level of alert.
After three first level alerts, the system triggers
a new alert with the message "Take a break!",
accompanied by a more pronounced audible
signal.
In certain driving conditions (poor road
surface or strong winds), the system
may give alerts independent of the
driver's level of vigilance.
The following situations may interfere
with operation of the system or prevent
it working:
- poor visibility (inadequate lighting
of the roadway, falling snow, heavy
rain, dense fog, ...),
-
dazzle (headlamps of an oncoming
vehicle, low sun, reflections on
a damp road, leaving a tunnel,
alternating shade and light, ...),
- windscreen area located in front
of the camera: dirty, misted, frost-
covered, snow-covered, damaged
or covered by a sticker,
- lane markings absent, worn,
masked (snow, mud) or multiple
(roadworks, ...),
-
close to the vehicle ahead (lane
markings not detected),
- roads that are narrow, winding, ...
The driver is then alerted by the message
"Take care!", accompanied by an audible
signal.
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