Method of transient control for robust enrichment operation in low temperature combustion engine

Yun, Hanho; Kang, Jun-Mo

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Title: Method of transient control for robust enrichment operation in low temperature combustion engine

Abstract

A method of transient control for enrichment operation in a low-temperature combustion engine. The method includes determining if a current mode of the low-temperature combustion (LTC) engine is a positive valve overlap (PVO) mode. Determining if a previous mode of the LTC engine was also the PVO mode when the current mode is the PVO mode, wherein the previous mode is immediately prior to the current mode. Determining if the previous mode of the LTC engine was a negative valve overlap (NVO) mode when the previous mode was not the PVO mode. Initiating a predetermined enrichment PVO mode for the LTC engine based on the previous mode of the LTC engine. The predetermined enrichment PVO mode includes initiating a deep enrichment PVO mode, when the previous mode of the LTC engine was the NVO mode, and initiating a shallow enrichment PVO mode, when the previous mode of the LTC engine was not the NVO mode.

Inventors:: Yun, Hanho; Kang, Jun-Mo

Issue Date:: 2023-07-11

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

Sponsoring Org.:: USDOE

OSTI Identifier:: 2221967

Patent Number(s):: 11698034

Application Number:: 17/229,418

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

DOE Contract Number:: EE0007788

Resource Type:: Patent

Resource Relation:: Patent File Date: 04/13/2021

Country of Publication:: United States

Language:: English

Citation Formats


                    Yun, Hanho, and Kang, Jun-Mo. Method of transient control for robust enrichment operation in low temperature combustion engine.  United States: N. p., 2023. 
        Web.

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                    Yun, Hanho, & Kang, Jun-Mo. Method of transient control for robust enrichment operation in low temperature combustion engine.  United States.

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                    Yun, Hanho, and Kang, Jun-Mo. Tue .  
        "Method of transient control for robust enrichment operation in low temperature combustion engine".  United States.  https://www.osti.gov/servlets/purl/2221967.

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@article{osti_2221967,

  title        = {Method of transient control for robust enrichment operation in low temperature combustion engine},

  author       = {Yun, Hanho and Kang, Jun-Mo},

  abstractNote = {A method of transient control for enrichment operation in a low-temperature combustion engine. The method includes determining if a current mode of the low-temperature combustion (LTC) engine is a positive valve overlap (PVO) mode. Determining if a previous mode of the LTC engine was also the PVO mode when the current mode is the PVO mode, wherein the previous mode is immediately prior to the current mode. Determining if the previous mode of the LTC engine was a negative valve overlap (NVO) mode when the previous mode was not the PVO mode. Initiating a predetermined enrichment PVO mode for the LTC engine based on the previous mode of the LTC engine. The predetermined enrichment PVO mode includes initiating a deep enrichment PVO mode, when the previous mode of the LTC engine was the NVO mode, and initiating a shallow enrichment PVO mode, when the previous mode of the LTC engine was not the NVO mode.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2023},

  month        = {7}

}

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Works referenced in this record:

Method and Apparatus for Controlling an Internal Combustion Engine Coupled to a Passive Selective Catalytic Reduction Aftertreatment System
patent-application, November 2011

Wermuth, Nicole; Najt, Paul M.; Narayanaswamy, Kushal
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HCCI Combustion Moding State Control for Fuel Economy a nd Seamless Transitions
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Ramap pan, Vijay; Kang, Jun-Mo
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Narayanaswami, Kushal; Najt, Paul M.
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Method of HCCI and SI combustion control for a direct injection internal combustion engine
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Kuo, Tang-Wei; Sun, Zongxuan; Eng, James
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Spark Ignition to Homogenous Charge Compression Ignition Transition Control Systems and Methods
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Passive Ammonia-Selective Catalytic Reduction for NOx Control in Internal Combustion Engines
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Method and Apparatus for Engine Operation in Homogeneous Charge Compression Ignition and Spark Ignition
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Yun, Hanho; Wermuth, Nicole; Najt, Paul M.
US Patent Application 13/181925; 20130018565
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Technique for Production of Ammonia on Demand in a Three Way Catalyst for a Passive Selective Catalytic Reduction System
patent-application, August 2010

Narayanaswamy, Kushal; Najt, Paul M.
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Kinugasa, Yukio; Itou, Takaaki; Takeuchi, Koichi
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patent-application, November 2011

Wermuth, Nicole; Najt, Paul M.; Yun, Hanho
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Similar Records

Title: Method of transient control for robust enrichment operation in low temperature combustion engine

Abstract

Citation Formats

Method and Apparatus for Controlling an Internal Combustion Engine Coupled to a Passive Selective Catalytic Reduction Aftertreatment System patent-application, November 2011

HCCI Combustion Moding State Control for Fuel Economy a nd Seamless Transitions patent-application, July 2010

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Spark Ignition to Homogenous Charge Compression Ignition Transition Control Systems and Methods patent-application, July 2013

Method and device for purifying exhaust gas of engine patent, April 2000

Passive Ammonia-Selective Catalytic Reduction for NOx Control in Internal Combustion Engines patent-application, May 2010

Passive Ammonia-Selective Catalytic Reduction for NOx Control in Internal Combustion Engines patent-application, May 2010

Method and Apparatus for Engine Operation in Homogeneous Charge Compression Ignition and Spark Ignition patent-application, January 2013

Technique for Production of Ammonia on Demand in a Three Way Catalyst for a Passive Selective Catalytic Reduction System patent-application, August 2010

Exhaust gas purification device for an internal combustion engine patent, August 2000

Control Strategy for Transitions Between Homogeneous-Charge Compression-Ignition and Spark-Ignition Combustion Modes patent-application, November 2011

Method for Managing Transitions in Internal Combustion Engines with Combustion Phasing patent-application, November 2011

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patent-application, July 2010

Technique for Production of Ammonia on Demand in a Three Way Catalyst for a Passive Selective Catalytic Reduction System
patent-application, October 2013

Method of HCCI and SI combustion control for a direct injection internal combustion engine
patent-application, November 2006

Spark Ignition to Homogenous Charge Compression Ignition Transition Control Systems and Methods
patent-application, July 2013

Method and device for purifying exhaust gas of engine
patent, April 2000

Passive Ammonia-Selective Catalytic Reduction for NOx Control in Internal Combustion Engines
patent-application, May 2010

Passive Ammonia-Selective Catalytic Reduction for NOx Control in Internal Combustion Engines
patent-application, May 2010

Method and Apparatus for Engine Operation in Homogeneous Charge Compression Ignition and Spark Ignition
patent-application, January 2013

Technique for Production of Ammonia on Demand in a Three Way Catalyst for a Passive Selective Catalytic Reduction System
patent-application, August 2010

Exhaust gas purification device for an internal combustion engine
patent, August 2000

Control Strategy for Transitions Between Homogeneous-Charge Compression-Ignition and Spark-Ignition Combustion Modes
patent-application, November 2011

Method for Managing Transitions in Internal Combustion Engines with Combustion Phasing
patent-application, November 2011