Control apparatus for an internal combustion engine
OwnerManabu Miurainventor
Life of this patent
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Abstract
To allow control of the revolution with good response during idling operation even if the air excess coefficient is reduced, thereby reducing the isovolumetric level in a diesel engine, the isovolumetric level CVOL is estimated based on at least one of air excess coefficient, fuel ignition timing, and pressure end temperature inside a cylinder. The engine load FMOT is estimated based on at least one of intake air pressure, EGR rate, air excess coefficient, water temperature, and auxiliary load. The idle injection rate is calculated from the isovolumetric level CVOL and engine load FMOT.
Claims8
A control apparatus for an internal combustion engine, comprising:
- a unit for estimating an isovolumetric level during idling;
- a unit for estimating an engine load during idling;
- and
- a unit that selectively calculates the rate of fuel injection during idling operation based on the isovolumetric level and engine load.
A control apparatus for an internal combustion engine, comprising:
- means for estimating an isovolumetric level during idling;
- means for estimating an engine load during idling;
- and
- means for selectively calculating the rate of fuel injection during idling operation based on the isovolumetric level and engine load.
Dependencies are inferred from the claim text.