Description of the system
file:///D|/Manuales/Para%20recolocar/MOTOS/DUCATI/DUCATI/M796/wsm/EN/M796_ABS_11_6_10.33.1.html[11/12/2015 18:40:25]
10 -Description of the system
General information on the fuel injection-ignition system
Integrated electronically-controlled ignition and injection controlled by just one control unit ensure optimal Otto cycle
engine performance and output, thus reducing consumption and harmful substances into the exhaust gas. This system
ensures an accurately metered air-fuel ratio and optimal management of ignition advance.
This system consists of three different circuits:
Fuel circuit
Intake air circuit
Electric circuit (featuring control unit, sensors and actuators).
Importance of the air-fuel ratio and the ignition advance
Correct management of the air-fuel ratio and of the ignition advance are fundamental for optimal engine operation.
The air-fuel ratio is given by the ratio, in weight, of air and fuel taken in by the engine: the ideal or stoichiometric ratio is
that which establishes complete combustion. Excessive air or insufficient air give rise to, respectively, a lean (or weak)
mixture or a rich mixture, which affect power and consumption, as well as emissions of exhaust gases.
Electronic control of ignition timing advance makes it possible to optimise the performance of the engine, maximum power
output, fuel consumption and the concentration of exhaust pollutants.
Electronic ignition timing control combined with fuel supply control allows for optimal engine operation in all conditions of
use (low temperature start, warm-up stage, transitory acceleration/deceleration stages, engine under partial load, full
load, idle).
To Next Page
Loading...
