Method of correcting output of NOx sensor

Details Method of correcting output of NOx sensor Method of correcting output of NOx sensor

2011-01-25

2011-01-25

Olsen, Kaj K (Department: 1795)

Electrolysis: processes, compositions used therein, and methods

Electrolytic analysis or testing

For nitrogen or nitrogen containing compound

C204S406000, C204S425000, C073S023310, C701S103000, C702S024000

Reexamination Certificate

active

07875165

ABSTRACT:
A method of correcting an output of a NOx sensor including: a first step of obtaining a sensor-variation relational expression based on a relationship between an Ip2/Ip0value and an output change percentage for a calibration sensor; a second step of obtaining, from the relational expression, an output change percentage β that corresponds to an Ip2/Ip0value of a subject NOx sensor; a third step of calculating a pressure correction coefficient α based on the obtained β; and a fourth step of performing output correction on the subject NOx sensor by calculating the pumping current Ip2(p0) under a reference pressure based on the pumping current Ip2(p) and a pressure p of the measurement gas which are detected upon measurement of the NOx concentration in the measurement gas.

REFERENCES:
patent: 5249453 (1993-10-01), Usami et al.
patent: 5289717 (1994-03-01), Ishida
patent: 6071393 (2000-06-01), Oshima et al.
patent: 6284112 (2001-09-01), Kato et al.
patent: 6355152 (2002-03-01), Kato et al.
patent: 2003/0106808 (2003-06-01), Miyata et al.
patent: 0 678 740 (2001-06-01), None
patent: 4-80653 (1992-03-01), None
patent: 4-204246 (1992-07-01), None
patent: 06-273381 (1994-09-01), None
patent: 08-271476 (1996-10-01), None
patent: 11-237362 (1999-08-01), None
patent: 2000-28576 (2000-01-01), None
Bosch LSU 4 information, LSU 4 part #0 258 006 066, http://www.techedge.com.au/vehicle/wbo2/2v0/Isu4.htm, Apr. 3, 2003, pp. 1-2.

Affiliated with

Also associated with

Rating

Method of correcting output of NOx sensor 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 of correcting output of NOx sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of correcting output of NOx sensor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2633426