| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an apparatus for cleaning an exhaust gas from a construction machine that can prevent the damage of a DPF caused by forced regeneration in a state that PMs atr excessively accumulated, and can eliminate wasteful fuel usage caused by frequent forced regeneration by the accurate estimation of an accumulation amount of the PMs and the timely execution of the forced regeneration. <P>SOLUTION: The apparatus for cleaning the exhaust gas includes: an operation state determination means 12 that determines whether an operation state of an actuator is a working state or a non-working state based on a load state of the engine 6; a working state calculation means 14 that calculates the PM accumulation amount that is accumulated in an exhaust gas cleaning apparatus 8 in working; a non-working state calculation means 15 that calculates the PM accumulation amount in non-working; and an accumulation amount computing means 16 that computes the accumulated PM accumulation amount which is accumulated in the exhaust gas cleaning apparatus 8 from the PM accumulation amount calculated by the working state calculation means 14 and the non-working state calculation means 15. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
