Abarth 595, Owner'S Manual

Page: 80 / 225

67
ACTIVE SAFETY
SYSTEMS
The vehicle has the following active
safety systems:
ABS (Anti-lock Braking System);
EBD (Electronic Brake force
Distribution);
DTC (Drag Torque Control);
ESC (Electronic Stability Control);
HH (Hill Holder);
ASR (Antislip Regulation);
PBA (Panic Brake Assist);
TTC (Torque Transfer Control)
For the operation of the systems, see
the following description.
ABS (Anti-lock Braking
System)
This system, which is an integral part
of the braking system, prevents one
or more wheels from locking and
slipping in any road surface condition,
irrespective of the intensity of the
braking action, ensuring that the
car can be controlled even during
emergency braking thus optimising
stopping distances.
The system intervenes during braking
when the wheels are about to lock,
typically in emergency braking or low-
grip conditions, when locking may be
more frequent.
The system also improves control and
stability of the car when braking on a
surface where the grip of the left and
right wheels varies, or on corners.
The Electronic Braking Force
Distribution (EBD) system completes
the system allowing the brake force to
be distributed between the front and
rear wheels.
System intervention
A slight pulsing of the brake pedal and
noise indicates the intervention of the
ABS: this is completely normal when
the system intervenes.
48) 49) 50) 51) 52) 53) 54) 55) 56)
DTC (Drag Torque
Control) SYSTEM
The system prevents the drive wheels
from possibly locking, which could
happen, for example, if the accelerator
pedal is released suddenly or in
the case of a sudden downshifting
in conditions of poor grip. In these
conditions, the engine braking effect
could cause the drive wheels to slip,
resulting in a loss of car stability. In
these situations, the DTC system
intervenes, restoring torque to the
engine in order to conserve vehicle
stability and increase vehicle safety.
ESC (Electronic Stability
Control) SYSTEM
The ESC system improves the
directional control and stability of
the car in various driving conditions.
The ESC system corrects the car’s
understeer and oversteer, distributing
the brake force on the wheels
appropriately. The torque supplied by
the engine can also be reduced in
order to maintain control of the vehicle.
The ESC system uses sensors installed
on the car to determine the trajectory
that the driver intends to follow and
compares it with the car’s effective
trajectory. When the real trajectory
deviates from the desired trajectory, the
ESC system intervenes to counter the
vehicle’s understeer or oversteer.
Oversteer: occurs when the car is
turning more than it should with
respect to the angle of the steering
wheel.
Understeer: occurs when the car is
turning less than it should with respect
to the angle of the steering wheel.
System intervention
The system intervention is signalled
by the blinking of the instrument panel
warning light
, to inform the driver
that the car is in critical stability and
grip conditions.
57) 58) 59) 60) 61) 62)
HH (Hill Holder) SYSTEM
This is an integral part of the ESC
system and facilitates starting on
slopes, activating automatically in the
following cases: