Passive oxygen sensor diagnostic

Details Passive oxygen sensor diagnostic Passive oxygen sensor diagnostic

2005-10-25

2005-10-25

Garber, Charles (Department: 2856)

Measuring and testing

Instrument proving or calibrating

Gas or liquid analyzer

Reexamination Certificate

active

06957562

ABSTRACT:
An engine exhaust sensor diagnostic system includes an oxygen sensor and a controller. The controller monitors a signal generated by the oxygen sensor, determines a rate of change of the signal, and computes diagnostic parameters. The controller indicates malfunction of the oxygen sensor if the diagnostic parameters are smaller in magnitude than corresponding thresholds.

REFERENCES:
patent: 4241710 (1980-12-01), Peterson et al.
patent: 4981125 (1991-01-01), Kato et al.
patent: 5227975 (1993-07-01), Nakaniwa
patent: 5431011 (1995-07-01), Casarella et al.
patent: 5514968 (1996-05-01), Spanjers
patent: 5558752 (1996-09-01), Wang et al.
patent: 5801295 (1998-09-01), Davey et al.
patent: 6200443 (2001-03-01), Shen et al.

Affiliated with

Also associated with

Rating

Passive oxygen sensor diagnostic does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Passive oxygen sensor diagnostic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Passive oxygen sensor diagnostic will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3465179