184002368 - E7051 ROBOTIZED GEARBOX - DESCRIPTION

Description

A control system supervises and regulates the operation of the manual gearbox by means of an electro-hydraulic device creating the so-called "robotized gearbox".

There are two system operating modes:

• semi-automatic mode ( MANUAL): the driver engages the gears using the lever located on the tunnel.
• automatic mode (AUTO): the electronic system manages the decision to change gear in accordance with two strategies, the first dictated by driving comfort (NORMAL) and the second with the aim of reducing consumption (ECO): these strategies are switched on/off using button "E" next to the lever.

The electronic control unit converses with the engine management control unit via the CAN and two dedicated lines, one for the engine rpm signal, one for the fault diagnosis.The control unit operates an electro-hydraulic unit located on the gearbox, via a special electric pump, according to a complex operating logic.The autodiagnosis of the control unit indicates the source of these faults by turning on an instrument panel warning light. The control unit also sends the instrument panel information concerning the gear engaged which is shown in the display.For more details,    See descriptions 2127 HYDRAULIC TRANSMISSION EXTERNAL LINKAGE.The power supply lines for the control unit and the various system components (sensors and actuators) are protected by two fuses located in the junction unit under the dashboard.A special fuse in the engine compartment junction unit supplies the line for the system control pump.For more details,    See descriptions 2127 HYDRAULIC TRANSMISSION EXTERNAL LINKAGE.