F1-Trac; E-Diff - Ferrari Portofino Manual

F1-Trac

F1-Trac is a traction control system derived directly from F
expertise in F1.
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 the ESC OFF
driving mode.
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 exiting bends;
●
stability and driveability even in extreme driving conditions;
●
driving comfort.
On this vehicle, the F1-Trac and E-Diff systems work in conjunction to
ensure maximum performance and stability.
SAFETY
62

E-Diff

's The vehicle is equipped with an electronic differential, working on the rear
ERRARI
axle, which continually performs a variable check on the locking between
the two axle shafts.
The electronic differential system, integrated with F1-Trac traction
control, is capable of improving:
●
performance;
●
directional stability of the vehicle;
●
active safety even when close to grip limit;
●
driving pleasure and driveability.
The system is based on the analysis and forecast of vehicle performance in
all possible conditions. This is done by continually monitoring the pressure
of the clutch actuator on the differential.
The input signals are the dynamic parameters of the vehicle that the
control system translates into a torque difference between the two driving
wheels.
On bends, the electronic differential can:
●
stabilise the vehicle when the accelerator pedal is released by locking
the rear axle;
●
control vehicle dynamics by locking the differential proportionally
in relation to lateral acceleration and vehicle speed;
●
maximise both vehicle stability and acceleration when negotiating
bends by locking the differential proportionally in relation to lateral
acceleration, speed, selected gear and torque produced by the
engine.
To obtain these results, the electronic differential system interacts with
the F1-Trac, ESC and ABS systems, F1 gearbox and suspension damping
control (if available).