US 12,168,946 B2
Exhaust species tracking and notification system
Robert C. Borregard, Charleston, SC (US); Hasan Mohammed, Charleston, SC (US); Atin Tandon, Greenwood, IN (US); Daniel J. Robinson, Columbus, IN (US); Matthew W. Isaacs, Moncks Corner, SC (US); Benjamin Goldberger, Mt. Pleasant, SC (US); Arturo Mendoza-Pinon, Columbus, IN (US); Douglas Carnecki, Columbus, IN (US); Frank Ruggiero, Columbus, IN (US); and David L. Hirt, Columbus, IN (US)
Assigned to Cummins Inc., Columbus, IN (US)
Filed by Cummins Inc., Columbus, IN (US)
Filed on Jan. 13, 2023, as Appl. No. 18/097,026.
Application 18/097,026 is a continuation of application No. 17/184,881, filed on Feb. 25, 2021, granted, now 11,555,436.
Application 17/184,881 is a continuation of application No. PCT/US2019/048883, filed on Aug. 29, 2019.
Claims priority of provisional application 62/725,377, filed on Aug. 31, 2018.
Prior Publication US 2023/0141599 A1, May 11, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. F01N 11/00 (2006.01); F02D 41/02 (2006.01); F01N 3/08 (2006.01)
CPC F01N 11/00 (2013.01) [F01N 11/002 (2013.01); F02D 41/0235 (2013.01); F01N 3/08 (2013.01); F01N 2550/02 (2013.01); F01N 2900/0421 (2013.01); F01N 2900/1404 (2013.01); F01N 2900/1411 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An exhaust aftertreatment system control system, comprising:
one or more processing circuits comprising one or more memory devices coupled to one or more processors, the one or more memory devices storing instructions that, when executed by the one or more processors, cause the one or more processors to:
receive information indicative of at least one of a temperature of exhaust gas entering the aftertreatment system, a time at idle, or a mass flow of exhaust gas;
determine that a catalyst health management criteria is met based on the information indicative of the at least one of the temperature of exhaust gas entering the aftertreatment system, the time at idle, or the mass flow of exhaust gas, wherein the catalyst health management criteria is indicative of an amount of catalyst loading;
determine a catalyst health indicator based on the catalyst health management criteria being met;
compare the determined catalyst health indicator to a predetermined health threshold criteria;
determine an elapsed time during which the determined catalyst health indicator is less than the predetermined health threshold criteria; and
provide a notification in response to the elapsed time exceeding a predetermined time threshold.