Internal combustion engine control
The method involves estimating actual air/fuel ratio of individual engine cylinders, and determining a target cylinder air/fuel ratio as a predetermined function of the estimated actual air/fuel ratio of the individual engine cylinders. The estimated actual air/fuel ratio of each of the number of en...
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| Format: | Patent |
| Sprache: | eng ; fre ; ger |
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| Zusammenfassung: | The method involves estimating actual air/fuel ratio of individual engine cylinders, and determining a target cylinder air/fuel ratio as a predetermined function of the estimated actual air/fuel ratio of the individual engine cylinders. The estimated actual air/fuel ratio of each of the number of engine cylinders is compared to the target cylinder air/fuel ratio. A deviation between the estimated actual air/fuel ratio of any of the number of engine cylinders and the target cylinder air/fuel ratio is detected. For a cylinder of the number of engine cylinders in which a deviation is detected, a cylinder control command to drive the estimated actual air/fuel ratio of the cylinder toward the target air/fuel ratio is varied. |
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