| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To start process at an early stage in response to process request of NO<SB>X</SB>regeneration or S poisoning recovery of a catalyst device or a particulate filter by combustion at theoretical air fuel ratio or rich air fuel ratio and to start acceleration at an early stage in response to acceleration request during treatment of NO<SB>X</SB>regeneration or S poisoning recovery or right after that in a control device for a diesel engine capable of performing combustion at theoretical air fuel ratio or rich air fuel ratio with a large quantity of exhaust gas recirculation. <P>SOLUTION: At a time of process of NO<SB>x</SB>regeneration and S poisoning recovery of the catalyst device or the particulate filter 12a arranged in an engine exhaust system and carrying NO<SB>x</SB>occlusion agent, combustion at theoretical air fuel ratio or rich air fuel ratio is performed in part of cylinders 1a, and an intake valve and an exhaust valve are kept closed to suspend combustion in remaining cylinders 1b. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
