| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a control device for continuous regenerating DPF capable of performing a regeneration accelerating control always at a proper timing by accurately estimating an accumulated amount of PM. SOLUTION: A temperature frequency factor K1 is set from a DPF front temperature affecting the active state of a DPF, a correction factor K2 is set from NOx/Soot affecting the acceleration of combustion of PM, and the multiplied value of the temperature frequency factor K1 and correction factor K2 is average-moved to calculate a regenerative factor K3. When the regenerative factor K3 lowers below the set value of less than 1 (for example, 0.8), the regeneration accelerating control is performed since the accumulated amount of PM in the DPF is considered to be increased.</p> |
