| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To easily and accurately estimate the actually discharged amount of particulate matter in an exhaust emission control device of an internal combustion engine. <P>SOLUTION: The relation between a PM emission factor which is in proportion to the discharged amount of particulate matter and larger as an excess air ratio is smaller and the excess air ratio is stored. The actually discharged amount of particulate matter is calculated by multiplying the discharged amount of PM when an engine is operated in a standard state by the ratio of the PM emission factor obtained according to the actual excess air ratio to the PM emission factor obtained according to the excess air factor when the engine is operated in the standard state. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
