| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve combustion stability (flame propagation promotion) by intensifying disturbance in a cylinder due to fuel atomization in ATDC ignition for early activation of a catalyst and HC reduction. <P>SOLUTION: When the warm-up of the catalyst is required, an ignition timing is set after a compression top dead center (TDC). Fuel injection is performed after the TDC but before the ignition timing (Embodiment 1). Otherwise, prior to the fuel injection after the TDC, fuel injection is performed during an intake or compression stroke (Embodiments, 2, 3). <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
