| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a fuel injector of an internal combustion engine capable of performing post-injection in the proper timing, without requiring a special sensor for detecting a DPF state, without increasing fuel consumption. <P>SOLUTION: Easiness-to-deposit of PM in DPF is integrated as numeric value information from a fuel injection quantity and an engine speed in main injection of an injector. The post-injection from the injector is started by determining that a PM deposit quantity becomes excessive when this integral value reaches a predetermined value. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
