| 摘要 |
<P>PROBLEM TO BE SOLVED: To avoid abnormal combustion in a high load range, in a spark ignition type gasoline engine 1 of a high compression ratio where the geometry compression ratio is set comparatively high. <P>SOLUTION: When the operating state of an engine body is in the high load range, a controller (PCM 10) drives a fuel injection valve (injector) 67 in a low speed region so that the fuel injection is performed with a timing in a retard period from a later phase of a compression step to an early phase of an expansion step. In a high speed region, the controller drives the fuel injection valve so that the fuel injection is performed in an intake step period until an intake valve 21 closes. <P>COPYRIGHT: (C)2013,JPO&INPIT |
