Patent ID: 7769531
Filing Date: 2010-08-03
Classification: F01N,F02B,F02D,F02M,Y02T

Abstract:
1. A control device of an internal combustion engine, the control device comprising: an estimating means for estimating an air excess ratio equivalent value that shows how much present in-cylinder oxygen quantity is larger than in-cylinder oxygen quantity at a theoretical air-fuel ratio in the internal combustion engine; a first calculating means for calculating an ignition delay at the air excess ratio equivalent value, which is estimated by the estimating means, from ignition delays in the internal combustion engine at the two or more air excess ratio equivalent values in the internal combustion engine; and a second calculating means for calculating a command value of fuel injection timing of the internal combustion engine by subtracting the ignition delay calculated by the first calculating means from a target value of ignition timing.