| 摘要 |
PURPOSE: To provide an engine speed fluctuation preventive device capable of preventing fluctuation of engine speed having its origin in fluctuation of an engine load. CONSTITUTION: An engine speed fluctuation preventive device A has itsΔI detecting unit 15 detecting the decreasing variation quantity of electric generator current I flowing from an electricity generating motor 5 to a battery 4 and, when the decreasing variation quantity is small, functioning of an ISCV correction unit 11, which corrects the intake air quantity, is regarded as being effective. When the decreasing variation quantity is medium, functioning of an ignition timing control unit 17, which corrects the ignition timing, is regarded as being effective, and when the decreasing variation quantity is large, a fuel cut unit 13, which instructs injection stoppage, is regarded as being effective.
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