2428139 - E7051 ROBOTIZED GEARBOX - Description (Smart gearbox)
Description
A control system supervises and governs
the operation of the manual gearbox via an electrohydraulic device
to create a robotised gearbox system.The system operates in two modes:
- semiautomatic mode (MANUAL): the driver manages gear engagement
via the lever located on the tunnel.
- automatic mode (AUTO): the decision to change gears is
delegated to the electronic system, in accordance with two strategies,
the first aiming for driving comfort (NORMAL), the second aiming
to limit fuel consumption (ECO).
The electronic control unit communicates
with the engine management control unit via the CAN network and
two dedicated lines, one for the engine rpm signal and one for diagnostics.The control unit drives, by means of a complex
operating logic, an electrohydraulic unit located on the gearbox,
via a specific electric pump.Control unit self-diagnosis notifies of
the onset of these faults via a special warning light in the instrument
panel: The control unit sends the instrument panel information on
the speed engaged. This is shown on the display.
For more details,
Characteristic of working principle 2127 ELECTRO-HYDRAULIC SELECTION.
GEARBOX EXTERNAL. CONTROLS
.
The supply lines to the control unit and
the various system components (sensors and actuators) are protected
by two fuses located in the underfacia control unit.A special fuse in the engine compartment
junction unit supplies the system control pump line.
For more details,
Characteristic of working principle 2127 ELECTRO-HYDRAULIC SELECTION.
GEARBOX EXTERNAL. CONTROLS
.