| 摘要 |
A DPF regeneration control device includes: a differential pressure sensor 39 which detects a differential pressure between a front and a rear of a DPF 7; a DPF differential pressure setting unit 51 which sets a DPF differential pressure generated in accordance with a total accumulated amount of soot and ash in advance through an experiment or a calculation, sets a DPF differential pressure generated when an ash accumulation amount corresponds to an accumulation amount at which washing is required, as a washing request threshold, and sets a DPF differential pressure generated when the ash accumulation amount is larger than the washing request threshold such that a reduction in output is necessary, as an output reduction threshold; a washing request issuing unit 53 which determines whether or not the DPF differential pressure has reached the washing request threshold and outputs a washing request; and an output reduction warning unit 55 which determines whether or not the DPF differential pressure has reached the output reduction threshold and issues an output reduction warning. |
