Komatsu Corporation

Fumihide Satou

Taku Murakami

Haruo Hashimoto

Ichio Ichikawa

To provide a method of handling DPF capable of ensuring an expected value of a catching function of reclaimed DPF and eliminating waste of useful metals included by DPF, DPF( ) mounted to a diesel engine for catching PM included in exhaust is reclaimed until being brought into a nonreusable state and remounted to the engine by at least once and in remounting, the DPF( ) is mounted such that the DPF( ) is mounted in the direction reverse to a direction of mounting at a preceding time.

Method of handling diesel particulate filter

Either a specified point Q or a specified area Ar, at which an operating condition of a vehicle becomes a specified operating condition, is set beforehand from among points or areas on a travel route along which a vehicle travels. Then, an operating parameter P of a point in time ts ts ts ts . . . , tsn, at which a vehicle passes either a specified point Q or a specified area Ar, is obtained. Then, a vehicle abnormality is diagnosed on the basis of the values of these obtained operating parameters P (maximum values Pmax).

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Oyama, Japan

Fumihide Satou