Method and apparatus for monitoring a hydrocarbon-selective catalytic reduction device

Schmieg, Steven J; Viola, Michael B; Cheng, Shi-Wai S; Mulawa, Patricia A; Hilden, David L; Sloane, Thompson M; Lee, Jong H

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Title: Method and apparatus for monitoring a hydrocarbon-selective catalytic reduction device

Abstract

A method for monitoring a hydrocarbon-selective catalytic reactor device of an exhaust aftertreatment system of an internal combustion engine operating lean of stoichiometry includes injecting a reductant into an exhaust gas feedstream upstream of the hydrocarbon-selective catalytic reactor device at a predetermined mass flowrate of the reductant, and determining a space velocity associated with a predetermined forward portion of the hydrocarbon-selective catalytic reactor device. When the space velocity exceeds a predetermined threshold space velocity, a temperature differential across the predetermined forward portion of the hydrocarbon-selective catalytic reactor device is determined, and a threshold temperature as a function of the space velocity and the mass flowrate of the reductant is determined. If the temperature differential across the predetermined forward portion of the hydrocarbon-selective catalytic reactor device is below the threshold temperature, operation of the engine is controlled to regenerate the hydrocarbon-selective catalytic reactor device.

Inventors:: Schmieg, Steven J; Viola, Michael B; Cheng, Shi-Wai S; Mulawa, Patricia A; Hilden, David L; Sloane, Thompson M; Lee, Jong H

Issue Date:: 2014-05-06

Research Org.:: GM Global Technology Operations LLC, Detroit, MI (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1130964

Patent Number(s):: 8713914

Application Number:: 12/568,754

Assignee:: GM Global Technology Operations LLC (Detroit, MI)

Patent Classifications (CPCs):: F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES

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F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
F01N13/0093 - {the purifying devices are of the same type}
F01N13/0097 - {the purifying devices are arranged in a single housing}
F01N2560/023 - for measuring or detecting HC
F01N2560/026 - for measuring or detecting NOx
F01N2560/06 - the means being a temperature sensor
F01N2560/14 - having more than one sensor of one kind
F01N2610/03 - the substance being hydrocarbons, e.g. engine fuel
F01N2900/1411 - Exhaust gas flow rate, e.g. mass flow rate or volumetric flow rate
F01N2900/1602 - Temperature of exhaust gas apparatus
F01N2900/1812 - Flow rate
F01N3/035 - with catalytic reactors {, e.g. catalysed diesel particulate filters}
F01N3/106 - {Auxiliary oxidation catalysts}
F01N3/208 - {Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent}

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES
F02D2200/0802 - Temperature of the exhaust gas treatment apparatus
F02D41/025 - {by changing the composition of the exhaust gas, e.g. for exothermic reaction on exhaust gas treating apparatus}
F02D41/027 - {to purge or regenerate the exhaust gas treating apparatus}
F02D41/1445 - {the characteristics being related to the exhaust flow}
F02D41/405 - {with post injections}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
Y02T10/12 - Technologies for the improvement of indicated efficiency of a conventional ICE

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DOE Contract Number:: FC26-02NT41218

Resource Type:: Patent

Resource Relation:: Patent File Date: 2009 Sep 29

Country of Publication:: United States

Language:: English

Subject:: 22 GENERAL STUDIES OF NUCLEAR REACTORS

Citation Formats


                    Schmieg, Steven J, Viola, Michael B, Cheng, Shi-Wai S, Mulawa, Patricia A, Hilden, David L, Sloane, Thompson M, and Lee, Jong H. Method and apparatus for monitoring a hydrocarbon-selective catalytic reduction device.  United States: N. p., 2014. 
        Web.

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                    Schmieg, Steven J, Viola, Michael B, Cheng, Shi-Wai S, Mulawa, Patricia A, Hilden, David L, Sloane, Thompson M, & Lee, Jong H. Method and apparatus for monitoring a hydrocarbon-selective catalytic reduction device.  United States.

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                    Schmieg, Steven J, Viola, Michael B, Cheng, Shi-Wai S, Mulawa, Patricia A, Hilden, David L, Sloane, Thompson M, and Lee, Jong H. Tue .  
        "Method and apparatus for monitoring a hydrocarbon-selective catalytic reduction device".  United States.  https://www.osti.gov/servlets/purl/1130964.

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@article{osti_1130964,

  title        = {Method and apparatus for monitoring a hydrocarbon-selective catalytic reduction device},

  author       = {Schmieg, Steven J and Viola, Michael B and Cheng, Shi-Wai S and Mulawa, Patricia A and Hilden, David L and Sloane, Thompson M and Lee, Jong H},

  abstractNote = {A method for monitoring a hydrocarbon-selective catalytic reactor device of an exhaust aftertreatment system of an internal combustion engine operating lean of stoichiometry includes injecting a reductant into an exhaust gas feedstream upstream of the hydrocarbon-selective catalytic reactor device at a predetermined mass flowrate of the reductant, and determining a space velocity associated with a predetermined forward portion of the hydrocarbon-selective catalytic reactor device. When the space velocity exceeds a predetermined threshold space velocity, a temperature differential across the predetermined forward portion of the hydrocarbon-selective catalytic reactor device is determined, and a threshold temperature as a function of the space velocity and the mass flowrate of the reductant is determined. If the temperature differential across the predetermined forward portion of the hydrocarbon-selective catalytic reactor device is below the threshold temperature, operation of the engine is controlled to regenerate the hydrocarbon-selective catalytic reactor device.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2014},

  month        = {5}

}

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Works referenced in this record:

Diesel aftertreatment systems
patent, January 2006

Van Nieuwstadt, Michiel J.; Reichenbach, Michele; Yuan, Fumin
US Patent Document 6,990,800
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6990800

Method for control of exhaust gas purification system, and exhaust gas purification system
patent, September 2010

Nagaoka, Daiji; Gabe, Masashi; Imai, Takehito
US Patent Document 7,797,927
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Exhaust gas purifying apparatus for internal combustion engine
patent, November 2011

Kako, Junichi; Soejima, Shinichi; Kayama, Ryozo
US Patent Document 8,051,641
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8051641

Exhaust emission control and diagnostics
patent-application, March 2004

Mazur, Christopher John; Upadhyay, Devesh
US Patent Application 10/064957; 20040040289
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20040040289

Engine Control for a Vehicle Equipped with an Emission Control Device
patent-application, July 2004

Surnilla, Gopichandra; Hepburn, Jeffrey Scott; Roth, John M.
US Patent Application 10/248529; 20040144085
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20040144085

Method of Exhaust Gas Purification and Exhaust Gas Purification System
patent-application, November 2007

Gabe, Masashi; Nagaoka, Daiji
US Patent Application 11/660312; 20070256405
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20070256405

Exhaust Gas Purifying Apparatus for Internal Combustion Engine
patent-application, February 2010

Kako, Junichi; Soejima, Shinichi; Kayama, Ryozo
US Patent Application 11/991740; 20100047133
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20100047133

Exhaust Gas After Treatment System
patent-application, June 2010

Alm, Christer; Eckerstrom, Ingemar; Bernler, Hans
US Patent Application 12/528090; 20100139249
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20100139249

Works referencing / citing this record:

Systems and methods for determining the quantity of a combustion product in a vehicle exhaust
patent, March 2017

Gerty, Michael D.
US Patent Document 9,594,067
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9594067

Method of controlling operation of an exhaust fluid treatment apparatus
patent, December 2016

Eager, Antony
US Patent Document 9,523,974
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9523974

Diagnostics for hydrocarbon injection for filter regeneration
patent, June 2015

Fontana, Massimo
US Patent Document 9,051,867
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/9051867

Systems and methods for determining the quantity of a combustion product in a vehicle exhaust
patent, March 2015

Gerty, Michael D.
US Patent Document 8,966,880
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/8966880

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Similar Records

Title: Method and apparatus for monitoring a hydrocarbon-selective catalytic reduction device

Abstract

Citation Formats

Diesel aftertreatment systems patent, January 2006

Method for control of exhaust gas purification system, and exhaust gas purification system patent, September 2010

Exhaust gas purifying apparatus for internal combustion engine patent, November 2011

Exhaust emission control and diagnostics patent-application, March 2004

Engine Control for a Vehicle Equipped with an Emission Control Device patent-application, July 2004

Method of Exhaust Gas Purification and Exhaust Gas Purification System patent-application, November 2007

Exhaust Gas Purifying Apparatus for Internal Combustion Engine patent-application, February 2010

Exhaust Gas After Treatment System patent-application, June 2010

Systems and methods for determining the quantity of a combustion product in a vehicle exhaust patent, March 2017

Method of controlling operation of an exhaust fluid treatment apparatus patent, December 2016

Diagnostics for hydrocarbon injection for filter regeneration patent, June 2015

Systems and methods for determining the quantity of a combustion product in a vehicle exhaust patent, March 2015

Diesel aftertreatment systems
patent, January 2006

Method for control of exhaust gas purification system, and exhaust gas purification system
patent, September 2010

Exhaust gas purifying apparatus for internal combustion engine
patent, November 2011

Exhaust emission control and diagnostics
patent-application, March 2004

Engine Control for a Vehicle Equipped with an Emission Control Device
patent-application, July 2004

Method of Exhaust Gas Purification and Exhaust Gas Purification System
patent-application, November 2007

Exhaust Gas Purifying Apparatus for Internal Combustion Engine
patent-application, February 2010

Exhaust Gas After Treatment System
patent-application, June 2010

Systems and methods for determining the quantity of a combustion product in a vehicle exhaust
patent, March 2017

Method of controlling operation of an exhaust fluid treatment apparatus
patent, December 2016

Diagnostics for hydrocarbon injection for filter regeneration
patent, June 2015

Systems and methods for determining the quantity of a combustion product in a vehicle exhaust
patent, March 2015