Ducati Diavel Service Manual: Introduction to the engine control system
The engine control system used on the diavel consists of the following elements:
- Ride-by-wire system (motorised throttle valves with electric actuator, throttle grip position sensor and throttle valve position sensor)
- One injector per cylinder installed downstream of throttle valve
- One coil per cylinder, in spark plug bore
- Two oxygen sensors (one per cylinder, installed on each exhaust manifold)
- Two absolute pressure (map) sensors installed downstream of throttle valve (one per cylinder connected to each intake duct)
- One three-way catalytic converter for exhaust gas post-treatment
The system also includes conventional sensors for water and air temperature, engine speed-timing etc.
- Specific operating strategies
- Inputs and outputs of engine control unit and connection to can network
- Layout of engine control system and other components
- Removal of the control unit
- Reassembly of the control unit
- Fuel system circuit
- Injection and ignition
- Operating principle and characteristics of the ride-by-wire system
- Explanation of the function of the ride-by-wire system
- Anti-pollution system and auto-adaptive strategy
- Ignition coils
- Injectors
- Throttle valve operation engine
- Engine start button
- Clutch lever button
- Side stand button
- Injection relay
- Throttle valve actuator motor relay
- Starter motor relay
- Radiator fan relay
- Engine speed-timing sensor
- Accelerator position sensor (throttle grip)
- Throttle valve position sensor
- Component assembling position
- Air temperature sensor
- Engine temperature sensor
- Absolute pressure sensors
- Oxygen sensors
Programming/reprogramming keys
The dds diagnosis instrument is required in order to programme/reprogramme
the keys. The key programming procedure
is launched from this instrument.
To start the key programming/reprogramming pr ...
Specific operating strategies
Idle speed
No electric motor is used for idle speed regulation (bypass is modulated
instead with the throttle valve), as idle speed
control is effected by the ride-by-wire system. Idle speed is ma ...
Other materials:
Digital rpm indication function
This function displays the number of rpms for improved accuracy when setting
idle rpm.
To access the function it is necessary to view the ""setting" menu", using
buttons (1) "s" or (2) "t" select the "rpm"
function and press the reset button (3) to confirm.
The display shows the numerical v ...
Clutch lever button
Introduction
The clutch button is located on the clutch lever. Together with the signal
from the side stand button and the neutral signal
generated by the gear sensor (transmitted to the engine control unit over the
can line), the clutch lever position signal is
used to enable or disable engi ...
Removal of the steering head components
Note
All parts fitted to the top and bottom yokes, including the wiring and
control cables, can remain on the motorcycle
provided they do not hinder the following operations.
Loosen the screws (19) securing the supports (21) and (23) of splashguard
(22) to the air conveyors (t).
...