| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a control method of an exhaust emission control system and the exhaust emission control system by which misfire and generation of white smoke can be prevented by forced regeneration control when an engine is not heated with regard to forced regeneration control executing cylinder fuel injection control of multi-injection, post injection or the like so as to regenerate DPF of a continuous regeneration type DPF device. <P>SOLUTION: In the exhaust emission control system 1 equipped with a continuous regeneration type DPF device 13 in an exhaust gas passage 12 of an engine 10 and with a cooling water temperature detecting means 341C for detecting temperature Twm of cooling water in the engine 10, even when forced regeneration is determined to be necessary and when the temperature Twm of cooling water in the engine 10 which is detected by the cooling water temperature detecting means 341C is detected to be lower than the prescribed water temperature Tw0 for determination, the cylinder fuel injection control for forced regeneration of DPF 13a is not executed. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
