| 摘要 |
PROBLEM TO BE SOLVED: To stably keep stratified charge combustion, even in crossing a boundary of neighboring operating areas as different in set condition of the stratified charge combustion. SOLUTION: In a direct cylinder injection type spark ignition engine performing the stratified charge combustion at a lean air-fuel ratio in predetermined operating areas, the engine has twice ignition execution means 41, 7, 22 performing ignition at the ignition timing requested from the neighboring operating areas, in coming across the boundary of the neighboring operating areas when at least the ignition timing as a set condition of the stratified charge combustion is different, in the neighboring operating areas out of the predetermined areas where the stratified combustion is performed. COPYRIGHT: (C)2004,JPO&NCIPI
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