| 摘要 |
PROBLEM TO BE SOLVED: To preferably restrain a temperature rise in a catalyst device attributable to an injection amount increase correction upon returning from an over revolution fuel cut. SOLUTION: This fuel injection control device carries out a fuel increasing amount correction for restraining the temperature rise in the catalyst device 27 at fuel injection, and over revolution fuel cut control. Further, until a predetermined time elapses from returning from the over revolution fuel cut control, the fuel injection is carried out while inhibiting the fuel increasing amount correction. In this fuel injection device, an execution time of the over revolution fuel cut is constantly calculated based on an engine speed of the internal combustion engine 1, and the execution time of the over revolution fuel cut is set as the predetermined time.
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