Fuel injection quantity control
Fuel injection quantity control is a process during which the
injection quantity is determined. This is done by taking the
basic injection quantity calculated based on engine and
operating conditions and calibrating it depending on factors
such as water temperature, fuel temperature, intake air
temperature, and intake pressure.
Although the fuel injection quantity is determined based on the
position of the control rack connected to the governor in the
case of mechanical fuel systems, in the case of common rail
systems, the fuel injection quantity is controlled by the ECU.
For this reason, common rail systems are not dependent upon the
engine speed when determining the injection quantity.
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