DPF regeneration monitoring method

Details DPF regeneration monitoring method DPF regeneration monitoring method

2007-11-27

2007-11-27

Tran, Binh Q. (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

C060S274000, C060S276000, C060S285000, C060S295000

Reexamination Certificate

active

11217533

ABSTRACT:
A method for operating an internal combustion engine (100) and exhaust system therefor includes the step of initiating a regeneration event in a diesel particulate filter (DPF109) (401). A first oxygen concentration (213) of a gas upstream of the DPF109,and a second oxygen concentration (215) of the gas downstream of the DPF109are sensed (403) to infer a rate of combustion of material in the DPF (405) based on the difference between the first (213) and the second (215) oxygen concentrations. The rate of combustion is compared to a threshold value (409) and the regeneration event in the DPF109is terminated (411) if the rate of combustion is above the threshold.

REFERENCES:
patent: 6722120 (2004-04-01), Plote
patent: 6779339 (2004-08-01), Laroo et al.
patent: 6988361 (2006-01-01), van Nieuwstadt et al.
patent: 7051520 (2006-05-01), Nagaoka et al.
patent: 7062907 (2006-06-01), Kitahara
patent: 1568865 (2005-08-01), None

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