| 摘要 |
<p>PROBLEM TO BE SOLVED: To regenerate a filter for collecting particulates in exhaust by controlling an exhaust gas temperature to a target temperature in a short time without any limitation by an operating state. SOLUTION: In an exhaust emission control device for an internal combustion engine arranged inside an exhaust passage, provided with a particulate collecting means for collecting the particulates in the exhaust, and carrying out a main injection of injecting fuel near a top dead center at a regeneration timing of the particulate collecting means and an expansion stroke injection of an injecting fuel in an expansion stroke after the main injection, an expansion stroke injection quantity Qp is set on the basis of the operating state of the engine at the regeneration timing of the filter 11 and a main injection quantity Qm is reducibly corrected in accordance with the expansion stroke injection quantity Qp.</p> |
