| 摘要 |
PCT No. PCT/JP96/01285 Sec. 371 Date Apr. 21, 1997 Sec. 102(e) Date Apr. 21, 1997 PCT Filed May 15, 1996 PCT Pub. No. WO96/36802 PCT Pub. Date Nov. 21, 1996A control apparatus that changes the fuel injection mode of a cylinder-injection spark-ignition internal combustion engine without causing a misfire or smoke, lowering the exhaust characteristics or fuel-efficiency, or bringing about a changeover shock provided. An electronic control unit (70) of the control apparatus sets a first-term injection mode for fuel injection in a suction stroke or a second-term injection mode for fuel injection in a compression stroke in accordance with the engine operation state, and sets the values of parameters, such as the fuel injection quantity, ignition timing, exhaust gas recirculation quantity, etc., which are concerned in the combustion state in the engine, at values suitable for the set injection mode, thereby controlling the engine operation. When a request for the change of the injection mode is made as the engine operation state is changed, the parameter values are changed from the values suitable for the injection mode before change into the values suitable for the injection mode after change at suitable timings.
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