184
If the accelerator pedal is pressed
rapidly, the gearbox selects the sporty
driving programme to meet the re-
quest for a higher car performance.
To disengage this function, release the
accelerator gradually.
If the accelerator pedal is pressed
more slowly, the economy programme
is automatically selected.
The electronic control unit is able
to recognize particular situations
like a curve, detected as a different
speed of front wheel instant rotation
through the ABS active sensors, thus
preventing shifting to the higher
gear until the engine revolution limit
is reached. Only with this condition
or at the end of the curve will it be
possible to shift gear. This strategy is
useful to improve the car balance
and to guarantee a prompt accelera-
tion when coming out of the curve,
since the car has already the right
gear engaged.
Likely, during sudden braking, the
lower gear is engaged to exploit the
engine braking action at best. In
case of a curve, the new gear will be
engaged during slowing down before
the curve, therefore when coming
out of the curve it will not be neces-
sary to shift gear to accelerate.
Sporty driving on mixed roads is
recognized by the control unit
because the accelerator pedal is
released rapidly; if this condition is
detected, the gear selected is main-
tained even if the accelerator has
been released, without shifting to
higher gears, in order to increase the
engine efficiency for the following
acceleration.
The gear electronic control unit is
able to recognize hills as a result of
the torque signals coming from the
engine on the basis of the car speed,
therefore it is able to eliminate use-
less gear shifts when the accelerator
is released (e.g. before cornering)
and to use only those gears required
to improve the driving comfort.
Likely, the control unit is able to
recognize slopes and to prevent
shifting to higher gears when the
accelerator is released, in order to
use the “exhaust brake” at best to
the advantage of the braking system
and the car control.
IMPORTANT
The “exhaust brake”
function and shifting to a lower gear
during braking is not activated when
the ABS is operating.
A longer gear (5
th
) can be used
when the car is driving for long dis-
tances with constant high speed, but
limited engine rpm, thus reducing
driving noise and fuel consumption.
That is why, when a higher car per-
Содержание THESIS CONNECT
Страница 1: ......
Страница 15: ...14 fig 2 CONNECT INFOTELEMATIC SYSTEM The key for this figure is on pages 16 17 L0A6001b...
Страница 143: ...142 CLIMATE CONTROL SYSTEM fig 112 L0A6018b...
Страница 267: ...266 fig 1 L0A0264b...
Страница 311: ......
Страница 369: ......
Страница 382: ...NOTES...
Страница 383: ......
Страница 384: ......
Страница 386: ......