| 摘要 |
PROBLEM TO BE SOLVED: To provide a device for control of gas fuel engine that prevents a decrease in engine performance or exhaust performance when gas fuel which has different concentrations of inerts is replenished.SOLUTION: A device for control of an internal combustion engine is operated by the gas fuel. The device includes: a NOx concentration detector for detecting a NOx concentration in exhaust of the internal combustion engine; a COconcentration estimator for estimating a COconcentration of the gas fuel on the basis of the NOx concentration detected by the NOx concentration detector; a corrector for correcting a control amount of the internal combustion engine on the basis of the COconcentration estimated by the COconcentration estimator; and a controller for controlling the internal combustion engine on the basis of the control amount corrected by the corrector. |
