触媒の劣化判定装置 - Honda motor industry stock company

Title:

触媒の劣化判定装置

Document Type and Number:

Japanese Patent JP4688941

Kind Code:

B2

Abstract:

A catalyst deterioration determination device determines whether or not a catalyst which purifies exhaust gases exhausted from an internal combustion engine is deteriorated based on the capacity of the catalyst for purifying exhaust gases. If it is determined that the catalyst is deteriorated, first sulfur elimination control is executed for eliminating sulfur content accumulated in the catalyst. Further, when the first sulfur elimination control is terminated, the deterioration determination of the catalyst is executed. Then, when it is determined by the deterioration determination that the catalyst is not deteriorated, it is determined that the fuel is high-sulfur fuel containing lots of sulfur content.

Inventors:

Jun Iida
Daisuke Sato
Hiroshi Hara

Application Number:

JP2009074631A

Publication Date:

May 25, 2011

Filing Date:

March 25, 2009

Export Citation:

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