| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an optimum supercharging pressure control when an exhaust temperature rise is aimed by realizing a target exhaust temperature and a target air-fuel ratio to meet a regeneration of a DPF or an S poisoning release, etc. of an NOx trap catalyst. <P>SOLUTION: A combustion controller of an internal combustion engine performs a main combustion for generating a main torque and a preliminary combustion performed prior to the main combustion. The combustion controller controls a fuel injection so as to arise the preliminary combustion near a compression top dead center and to start the main combustion after the preliminary combustion is finished. At such a combustion time, the degree of variable nozzle opening of a supercharger is increased rather than the time of a normal combustion, and controlled to a non-supercharging side. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
