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:
Rectifier-regulator
The rectifier (1) is placed in the electrical components compartment.
The rectifier/regulator consists of an aluminium casing containing the diodes
that rectify the current produced by the
alternator. It also contains an electronic device that regulates the current
supplied by the alternator ...
Engine setting function (engine power control)
This function customises engine power and output.
To access the function it is necessary to view the "setting" menu page 48, using
button (1, fig. 14) ?"
"or (2, fig. 14) ?" "select the "riding mode"function
and press the
reset button (12, fig. 12) T ...
High engine coolant temperature
The activation of this (amber yellow) "warning" indicates
that the engine coolant temperature is high.
It is activated when the temperature reaches 121C (250f).
Note
In this case, ducati recommends stopping and shutting
off the engine immediately; make sure that the fans are
workin ...