Esc - Electronic Stability Control - Ferrari 2012 F12 Berlinetta Owner's Manual

ESC - Electronic Stability Control

The electronic stability control ESC consists of two main systems:
Vehicle Dynamics Control, performed through the
VDC
braking system
traction control performed through engine torque
F1-Trac
modulation, depending on maximum grip on the road
and secondary systems that are always active such as the ABS and
EBD.
To provide optimal control in different driving and grip conditions,
five different settings have been developed:
- Level 1 (Manettino set to WET): ensures stability and maximises
traction on every type of road surface, both in low and very low
grip conditions, by means of engine and brake control (in this
condition, the standard ASR system is activated instead of the F1-
Trac function).
- Level 2 (Manettino set to SPORT): ensures stability and
maximises traction only in medium- to high-grip conditions by
optimising engine and brake control.
- Level 3 (Manettino set to RACE): enhances the racing features
of the vehicle by optimising traction control and reducing brake
control to a minimum. This mode is designed to ensure stability
on the race track in high grip conditions only.
- Level 4 (Manettino set to CT OFF): further enhances the already
racing-style behaviour of the vehicle, F1-Trac traction control is
disabled while stability control remains active when a certain level
of sideslip is exceeded. F1-Trac traction control is off. Stability is
NOT guaranteed.
- Level 5 (Manettino set to ESC OFF): ESC deactivated. Stability
is NOT guaranteed, but all the other auxiliary systems such as the
ABS, EBD and the E-Diff 3 electronic differential remain active.
During braking, the VDC system remains active.
Safety
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F1-Trac
F1-Trac is a traction control system that derives directly from
Ferrari's expertise in F1 vehicles.
F1-Trac is faster and more accurate than traditional control
systems and is capable of delaying and minimising engine torque
adjustments as required in order to ensure the desired trajectory.
The system estimates the maximum available grip in advance, by
continuously monitoring the relative wheel speed and using an
auto-adaptive operating logic. Comparing this information with
the vehicle dynamics model stored in the control system, F1-Trac
optimises the vehicle behaviour by controlling engine torque
delivery.
Important note
F1-Trac does not work when the Manettino is set to CT OFF
and ESC OFF driving modes.
The main feature that distinguishes the F1-Trac system from a
traditional traction control system lies in its ability to estimate grip
level accurately which allows the driver to make full use of the
vehicle's performance driving potential.
The F1-Trac system guarantees:
- maximum traction when coming out of bends;
- driving stability and ease even under extreme driving conditions;
- driving comfort.
On this vehicle, integration of the F1-Trac and E-Diff 3 systems
ensures maximum performance and stability.