ALFA 159 TRAINING MATERIAL
Fiat Auto S.p.A.
After Sales Training
1.2 Functions
Neutral Control
When the vehicle is stopped with the lever in position “D”, the clutches will be
automatically released, and the gearbox will be set to neutral. Thus, the torque
converter will not be stressed; moreover, fewer vibrations will occur, and fuel
consumption will be lowest.
This functions will not be implemented on rough terrain and uphill roads: in the latter
instance, the gearbox will remain engaged, thus ensuring a “hill holder” effect.
Reverse gear control
By moving the lever from “N” to “R”, the reverse gear will not be engaged if the vehicle
speed exceeds 11 r.p.m.
Adaptivity
MODE DESCRIPTION
ADAPTIVE
It is used during normal driving. Both the sports and the economy
modes are automatically selected according to the driving
conditions.
SPORTS
With this mode, the lock-up actuation and gear shifting points are
higher, to achieve a higher engine revs number.
WINTER/LOW GRIP
In case of ice, snow and low grip conditions in general, the vehicle
will be started in the third speed to avoid front wheel slipping.
TIP
By moving the lever from “D” to “+/-“, the driver may choose the
gear shifting point in a sequential fashion. In any case, the control
unit will change the gear automatically to avoid out-of-revs
conditions, or vice versa to avoid jerks when the engine speed is
too low.
HIGH TEMPERATURE
In case of too high gearbox oil temperature, the control unit will
advance lock-up actuation in order to avoid excessive slipping in
the torque converter and, thus, cause the temperature to decrease.
HEATING
In this case, on the contrary, converter slipping will be enhanced in
order to heat the oil.
RISE
The rise will be automatically detected with a control unit algorithm
based on the revs number increase: the gear shifting points will be
increased.
DESCENT
Conversely, the system will, when the vehicle is riding downhill,
make use of a few tricks in order to avoid prolonged use of the
brakes (lock-up, etc.).
FAST ON
This control calculates the driver’s performance requests through
the pressure on the accelerator pedal and regulates, accordingly,
the gear shifting points.
BRAKE ASSISTANCE
On the contrary, the exhaust brake is used in this case to help the
driver in case of deceleration (which is measured, once again,
through the accelerator pedal).