摘要 |
<p><P>PROBLEM TO BE SOLVED: To more suitably suppress excessive temperature rise of a particulate filter provided on an exhaust passage of an internal combustion engine. <P>SOLUTION: This exhaust emission control system for the internal combustion engine is provided with a predetermined gas concentration sensor for detecting concentration of predetermined gas which is included in exhaust gas and of which amount is changed by oxidation of particulates on the downstream side from the particulate filter. When the temperature of the particulate filter is raised by a temperature rise means for raising the temperature of the particulate filter, if a detection value of the predetermined gas concentration sensor is changed by a predetermined amount or more from start of the temperature rise (S103), the temperature rise of the particulate filter by the temperature rise means is stopped (S104). <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |