Speed-Sensitive Steering - Maserati Quattroporte Automatic 2009 Owner's Manual

M139_UM_usa1.book Page 228 Monday, September 1, 2008 2:39 PM
Differential
The ratios are:
Differential reduction ratio
13/46 = 3.54
Brakes
Service and emergency brakes
Self-ventilating disc brakes on the four
wheels.
Two diagonally opposed and
independent hydraulic control circuits.
Vacuum brake servo.
4-channel ABS system with Electronic
Brake force Distributor (EBD).
Electric parking brake
The electric parking brake (EPB) acts on
the rear wheels.
It is activated manually, by lifting the
lever found in the center panel of the
center console, see on page 179.
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Technical specifications
Suspension
Front and rear
Articulated quadrilateral suspension.
Skyhook suspension with adjustable
damping
This system allows the driver to choose
two settings for the shock absorbers,
depending upon the roadway
conditions, speed and comfort.

Speed-sensitive steering

Rack and pinion hydraulic steering,
with crankshaft-driven pump and
tank. Articulated steering column,
with power absorption and adjustable
inclination and height. Speed-
sensitive, it gets more rigid as the
speed increases.
– Steering diameter = 40.4 ft (12.3 m)
– Steering wheel turns = 1.5 (to the
left and to the right)