Maserati GRANCABRIO RANGE, Owner'S Manual

Page: 156 / 262

5
154
When sequential manual mode is
selected with 2
nd gear engaged,
a downshift request will be
ignored. While driving, the system
automatically switches to the upper
gear if the engine reaches the pre-
established speed rate (3,000 RPM).
“Low-grip” mode has priority over
SPORT mode and assists the ESC
system.
A downshift request from
6
th
to 5
th
gear will only be
accepted if the engine speed
rate in 5
th
gear is lower than 3,000
RPM. As “low-grip” mode can be
activated at any time and the system
limits the engine speed rate to 3,000
RPM in all gears except for the 6
th
,
unrequested gearshifts could take
place.
In any case, it is advisable to
deactivate
SPORT mode before
selecting “low-grip” mode.
When sequential manual gearshifting
is active, regardless of the mode
set (
NORMAL / SPORT / ICE ), the
gearbox will automatically upshift
or downshift when reaching the
minimum and maximum RPM.
This is to prevent engine overrevving
or underrevving.
Strategies for downhill driving
When the accelerator pedal is
released, the gearbox system detects
that the vehicle is moving downhill
and deactivates upshifting. When
the accelerator pedal is depressed,
upshifting is reactivated but will be
delayed by a few seconds.
When the brake pedal is depressed,
the gearbox system downshifts to
provide enhanced engine braking
power.
In other words, when driving
downhill, the gearbox system
operates so as to avoid upshifting and
shifting gears when the accelerator
pedal is released, and delays gear
engagement by a few seconds when
the accelerator pedal is depressed.
In addition, when the brakes are
applied, it engages the lowest gear
in order to provide enhanced engine
braking power.
This strategy is aimed at making
downhill driving safer.
Strategies in curves
The system detects when the vehicle
goes into a curve through the lateral
acceleration and the steering angle.
Detecting this condition, it controls
gearshifting using a specifi c mode.
This mode is exited when the vehicle
comes out of the curve, at a distance
that varies depending on the vehicle
speed.
Fast-off strategy
When the accelerator pedal is fully
released, the system deactivates
upshifting.
The next time the pedal is depressed,
upshifting will be reactivated only
after a few seconds.
Upshifting is also deactivated when
the accelerator pedal is partially
released; the system waits the time
necessary to evaluate if the release
action is completed.