| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To sufficiently perform catalyst regeneration processing, while suppressing overheat of an exhaust system. <P>SOLUTION: An internal combustion system includes: an internal combustion engine; a variable displacement turbocharger having a variable nozzle; and an exhaust cleaning catalyst. The control device for an internal combustion engine system controls the internal combustion system having the above constitution, and includes a catalyst regeneration means and a variable nozzle opening control means. The catalyst regeneration means controls an air-fuel ratio of exhaust to be on a rich side to perform regeneration processing of the exhaust cleaning catalyst. The variable nozzle opening control means increases the opening of the variable nozzle in the regeneration processing of the exhaust cleaning catalyst by the catalyst regeneration means. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
