| 摘要 |
When performing a learning control of a fuel injection quantity, a fuel injection control apparatus adds a pilot fuel injection during the working state of a diesel engine when a learning data item (as a fuel injection amount correction value) is calculated per cylinder and fuel pressure. The apparatus compares, based on a combustion stroke of a target cylinder, a work load obtained during an ordinary fuel injection with a work load obtained during the pilot fuel injection. The apparatus calculates a learning data item for the target cylinder in order to correct an actual fuel injection quantity in the target cylinder with the learning data item so that the actual fuel injection quantity approaches a target fuel injection quantity.
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