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Title: System and method for determining an ammonia generation rate in a three-way catalyst

Abstract

A system according to the principles of the present disclosure includes a rate determination module, a storage level determination module, and an air/fuel ratio control module. The rate determination module determines an ammonia generation rate in a three-way catalyst based on a reaction efficiency and a reactant level. The storage level determination module determines an ammonia storage level in a selective catalytic reduction (SCR) catalyst positioned downstream from the three-way catalyst based on the ammonia generation rate. The air/fuel ratio control module controls an air/fuel ratio of an engine based on the ammonia storage level.

Inventors:
; ;
Publication Date:
Research Org.:
GM Global Technology Operations LLC, N/A (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1166775
Patent Number(s):
8,919,099
Application Number:
13/157,669
Assignee:
GM Global Technology Operations LLC (N/A) DOEEE
DOE Contract Number:
EE0003379
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Sun, Min, Perry, Kevin L, and Kim, Chang H. System and method for determining an ammonia generation rate in a three-way catalyst. United States: N. p., 2014. Web.
Sun, Min, Perry, Kevin L, & Kim, Chang H. System and method for determining an ammonia generation rate in a three-way catalyst. United States.
Sun, Min, Perry, Kevin L, and Kim, Chang H. Tue . "System and method for determining an ammonia generation rate in a three-way catalyst". United States. doi:. https://www.osti.gov/servlets/purl/1166775.
@article{osti_1166775,
title = {System and method for determining an ammonia generation rate in a three-way catalyst},
author = {Sun, Min and Perry, Kevin L and Kim, Chang H},
abstractNote = {A system according to the principles of the present disclosure includes a rate determination module, a storage level determination module, and an air/fuel ratio control module. The rate determination module determines an ammonia generation rate in a three-way catalyst based on a reaction efficiency and a reactant level. The storage level determination module determines an ammonia storage level in a selective catalytic reduction (SCR) catalyst positioned downstream from the three-way catalyst based on the ammonia generation rate. The air/fuel ratio control module controls an air/fuel ratio of an engine based on the ammonia storage level.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 30 00:00:00 EST 2014},
month = {Tue Dec 30 00:00:00 EST 2014}
}

Patent:

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