Active City Brake - CITROEN C1 2015 Handbook

Safety

Active City Brake

Active City Brake is a driving assistance system that aims to avoid a frontal collision or reduce the speed of an impact if the driver does not react or
reacts too late (brake application too late).
This system is designed to improve
driving safety.
It remains the driver's responsibility to
continuously monitor the state of the
traffic and to assess the distances and
relative speeds of other vehicles.
Active City Brake can in no
circumstances replace the need for
vigilance on the part of the driver.
Never look at the laser sensor through
an optical instrument (magnifying glass,
microscope...) at a distance of less than
10 centimetres: risk of eye injury.
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Principle
Using a laser sensor and a camera located at
the top of the windscreen, this system detects
a vehicle running in the same direction or
stationary ahead of your vehicle.
When necessary, the vehicle's braking system
is operated automatically to reduce the speed
of impact or to help avoid a collision with the
vehicle ahead.
Automatic braking occurs later than if
done by the driver, so as to intervene
only when there is a high risk of
collision.
Conditions for activation
Active City Brake only operates if the following
conditions are met:
● the engine is running,
● the vehicle is in a forward gear,
● the speed is between 9 and 87 mph
(15 and 140 km/h) for triggering the alert;
the difference in speed between your
vehicle and the one ahead is more than
about 9 mph (15 km/h),
● the speed is between about 18 and 50 mph
(30 and 80 km/h) for braking assistance;
the difference in speed between your
vehicle and the one ahead is more than
about 18 mph (30 km/h),
● the speed is between about 6 and 50 mph
(10 and 80 km/h) for automatic braking;
the difference in speed between your
vehicle and the one ahead is more than
about 6 mph (10 km/h),
● the braking assistance systems (ABS,
EBFD, EBA) are not faulty,
● the trajectory control systems (TRC, DSC)
are not deactivated or faulty,
● the vehicle is not in a tight corner,
● the system has not been triggered during
the previous 10 seconds.