544 / 1232
Automated Manual Transmission
16
System Input Signals:
For logical operations the system has to use
the following signals coming from special
sensors or from other systems on the vehicle:
Special sensors for robotised gearbox
Clutch rpm sensor (the reading is taken on
the main gearbox shaft)
Position sensors: PLCD type clutch, en-
gagement
and
selection
actuator
(potentiometric contactless type).
Single signals coming from other systems
on the vehicle
Engine rpm (frequency signal from the en-
gine management control unit and CAN
network)
Brake pedal switch (duplicated, whether
discrete or on the CAN line)
Driver's side door switch (signal from NBC
through dedicated wire during Wake UP.
When the network is active it is replicated
on the CAN line).
Ignition key (stable position and discreet
starting).
Other main signals coming from the vehicle's
system via CAN are:
Accelerator pedal position
Engine torque, car speed, water tempera-
ture, etc.
User Interfaces – System:
The driver interfaces with the system by
means of the following controls:
Accelerator pedal, this signal will be trans-
mitted to the system via CAN and comes
from the engine management control unit.
Brake pedal signal comes directly from the
brake switch (dedicated signal) and via
CAN.
Request for gear change or choice of mode,
arrives at TCU through specific gear shift
lever.
The "SPORT/NORMAL" logic is information
read by gear shift lever.
The system provides the driver with the
following information by means of the re-
configurable multifunctional display:
Gear engaged in the gearbox (the display is
located/incorporated in the control panel
and connected via the CAN).
"AUTO" mode switched on (information in
the control panel-display-via CAN).
The SPORT information is displayed on the
instrument cluster.
System malfunctions are indicated by a
warning light (connected to the control
panel via CAN).
Acoustic signals through the buzzer: the
message arrives via the CAN at the instru-
ment cluster which controls the buzzer:
Improper use of the vehicle (associated
with warning buzzer)
Potential critical situation for the sys-
tem/vehicle
System failure
Reverse engagement
During automatic operation, the system dis-
plays the information on the gear engaged.