Method and apparatus for determining deterioration of three-way

Details Method and apparatus for determining deterioration of three-way Method and apparatus for determining deterioration of three-way

1989-07-18

1992-02-18

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Methods

60276, 60277, 60285, F01N 320

Patent

active

050882813

ABSTRACT:
In a double air-fuel ratio sensor system having three-way catalysts, a full O.sub.2 storage amount of the three-way catalysts is estimated and compared with a predetermined amount. When the estimated full O.sub.2 storage amount is smaller than the predetermined amount, the three-way catalysts are determined to have deteriorated.

REFERENCES:
patent: 4007589 (1977-02-01), Neidhard et al.
patent: 4622809 (1986-11-01), Abthoff
patent: 4739614 (1988-04-01), Katsuno et al.
patent: 4817383 (1989-04-01), Masui

Affiliated with

Also associated with

Rating

Method and apparatus for determining deterioration of three-way does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for determining deterioration of three-way , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for determining deterioration of three-way will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1815005