Maserati GranTurismo Sport 2015, Owner'S Manual

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Skyhook suspension
The electronic system controlling
the vehicle suspension uses the
sophisticated on board sensors
and is aimed at optimizing vehicle
performance.
The system is capable of constantly
monitoring suspension damping by
means of the actuator fitted on each
shock absorber. This way, the shock
absorber setting is suited to the
road surface conditions and vehicle
dynamics, thus improving passenger
comfort and road-holding.
By pressing button
A the drivers
can choose, even while driving, a
normal or racing-type setting for the
suspension, depending on their own
driving style. This way, the system
operates with a shock absorber
“softer” setting in
NORMAL mode,
and a “harder” setting if SPORT mode
is selected.
The system is controlled by an
ECU which is designed to manage
the solenoid valves on each shock
absorber in response to the sensor
signals, thus adjusting suspension
damping and setting.
The sensors which enable the ECU
to calculate the vehicle speed,
vertical and side acceleration, as
well as the instantaneous braking
system pressure, thereby controlling
suspension damping, are the
following:
- front left-hand vertical acceleration
sensor;
- front right-hand vertical
acceleration sensor;
- rear vertical acceleration sensor;
- front left-hand wheel acceleration
sensor;
- front right-hand wheel acceleration
sensor;
- lateral acceleration sensor;
- driving speed sensor;
- brake pedal switch.
The strategy used by the system
controlling suspension damping
is aimed at reducing the vertical
oscillations of the vehicle (rolling and
pitching) to a minimum.
The activation of
SPORT mode
sets the suspension for sports-style
driving and acts on the
ASR and
Automatic Gearbox systems (optional
equipment) as well, modifying their
setting for racing-style driving.
Self-diagnostics
Each time the engine is started, the
system performs a self-diagnostic
cycle, if a malfunction is found,
the relative symbol is displayed
accompanied by the message “Check
suspension”.