| 摘要 |
PCT No. PCT/JP97/02718 Sec. 371 Date Apr. 3, 1998 Sec. 102(e) Date Apr. 3, 1998 PCT Filed Aug. 5, 1997 PCT Pub. No. WO98/05856 PCT Pub. Date Feb. 12, 1998In a control apparatus for an in-cylinder injection spark-ignition internal combustion engine, which has a fuel injection valve (4) for injecting a fuel directly into a combustion chamber (5), and in which the fuel is injected mainly in a compression stroke, thereby undergoing stratified-charge combustion, when the internal combustion engine is operated in a specified operation region, a target load value Pe set corresponding to accelerator opening information based at least on a driver's operation is corrected with detected environmental parameter values correlated with an intake air density, engine control parameter values Tend and Tig are set in accordance with the corrected target load value Pec, and stratified-charge combustion is executed in accordance with the set engine control parameter values. Thus, the stratified-charge combustion can be carried out steadily and securely even if environmental parameter values, such as the atmospheric pressure, intake air temperature, etc., that are correlated with the intake air density are substantially different from those for the standard atmosphere during engine operation in an upland or the like. |
