REPRODUCTION CONTROL DEVICE, REPRODUCTION CONTROL METHOD, AND REPRODUCTION SUPPORT SYSTEM FOR DPF

摘要

Disclosed is a reproduction control device for a diesel particulate filter (DPF), which is provided with a differential pressure sensor (39) for detecting a differential pressure between pressures on the upstream side and the downstream side of a DPF (7); a DPF differential pressure setting means (51) wherein a DPF differential pressure generated due to the total accumulated quantity of soot and ash is previously set on the basis of a test or a calculation, a DPF differential pressure obtained at a ratio of the quantity of accumulated ash to the quantity of accumulated ash required to be washed is set as a wash request threshold value, and a DPF differential pressure which is obtained when ash is accumulated so as to exceed the wash request threshold value and the output is reduced, is set as an output reduction threshold value; a wash request alarm means (53) which determines whether or not the DPF differential pressure reaches the wash request threshold value, to output a washing request; and an output reduction alarm means (55) which determines whether or not the differential pressure reaches the output reduction threshold value, to alarm the reduction of the output.