Abarth 595, Owner'S Handbook Manual

Page: 59 / 176

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
on all road surface conditions,
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 vehicle 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
The driver can feel that the ABS system
has come into action because the
brake pedal pulsates slightly and the
system gets noisier: this is entirely
normal with the system operating.
39) 40) 41) 42) 43) 44) 45) 46) 47)
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 this
conditions, the engine braking effect
could cause the drive wheels to slip,
resulting in a loss of vehicle 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 vehicle’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 vehicle to determine the
trajectory that the driver intends to
follow and compares it with the
vehicle’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 according
to the angle of the steering wheel.
Understeer : occurs when the car is
turning less than it should according to
the angle of the steering wheel.
System intervention
The intervention of the system is
indicated by the flashing of the
warning light on the instrument
panel, to inform the driver that the
vehicle is in critical stability and grip
conditions.
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