ROBOTIZED GEARBOX - Description

1.3 JTD · 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

1.4 16v · 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.