Patents by Inventor Stanley Larue Bower
Stanley Larue Bower has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10294874Abstract: Methods and systems are provided for expediting EGR purging in a hybrid vehicle during transient operations, such as tip-out to lower load conditions. In response to decreasing engine torque demand, engine fueling is disabled and a motor is used to spin the engine unfueled until a desired LP-EGR rate is achieved. Alternatively, engine operation is maintained with EGR disabled until the desired LP-EGR rate is achieved, and the excess engine torque generated is stored in a system battery.Type: GrantFiled: November 20, 2013Date of Patent: May 21, 2019Assignee: Ford Global Technologies, LLCInventors: Daniel Joseph Styles, Stanley Larue Bower, James Alfred Hilditch, Robert Ralph Iorio, Gopichandra Surnilla
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Patent number: 9447742Abstract: Methods and systems are provided for expediting EGR purging in a hybrid vehicle during transient operations, such as tip-out to lower load conditions. In response to decreasing engine torque demand, engine fueling is disabled and a motor is used to spin the engine unfueled until a desired LP-EGR rate is achieved. Alternatively, engine operation is maintained with EGR disabled until the desired LP-EGR rate is achieved, and the excess engine torque generated is stored in a system battery.Type: GrantFiled: November 20, 2013Date of Patent: September 20, 2016Assignee: Ford Global Technologies, LLCInventors: Daniel Joseph Styles, James Alfred Hilditch, Stanley Larue Bower, Gopichandra Surnilla
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Publication number: 20150136074Abstract: Methods and systems are provided for expediting EGR purging in a hybrid vehicle during transient operations, such as tip-out to lower load conditions. In response to decreasing engine torque demand, engine fueling is disabled and a motor is used to spin the engine unfueled until a desired LP-EGR rate is achieved. Alternatively, engine operation is maintained with EGR disabled until the desired LP-EGR rate is achieved, and the excess engine torque generated is stored in a system battery.Type: ApplicationFiled: November 20, 2013Publication date: May 21, 2015Applicant: Ford Global Technologies, LLCInventors: Daniel Joseph Styles, James Alfred Hilditch, Stanley Larue Bower, Gopichandra Surnilla
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Publication number: 20150136076Abstract: Methods and systems are provided for expediting EGR purging in a hybrid vehicle during transient operations, such as tip-out to lower load conditions. In response to decreasing engine torque demand, engine fueling is disabled and a motor is used to spin the engine unfueled until a desired LP-EGR rate is achieved. Alternatively, engine operation is maintained with EGR disabled until the desired LP-EGR rate is achieved, and the excess engine torque generated is stored in a system battery.Type: ApplicationFiled: November 20, 2013Publication date: May 21, 2015Applicant: Ford Global Technologies, LLCInventors: Daniel Joseph Styles, Stanley Larue Bower, James Alfred Hilditch, Robert Ralph Iorio, Gopichandra Surnilla
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Patent number: 7257944Abstract: The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter by adjusting the engine air/fuel ratio based on estimates of the actual amount of oxidants stored in the catalyst. The oxidant storage capacity of the catalyst is adjusted by controlling engine spark in response to an estimate of a current amount of oxidants stored in the catalyst and an estimate of the total available oxidant storage capacity of the catalyst. To maintain engine speed in spite of adjustments to the engine spark, the engine air mass is also adjusted.Type: GrantFiled: June 17, 2005Date of Patent: August 21, 2007Assignee: Ford Global Technologies, LLCInventors: Donald James Lewis, Kevin Ronald Carlstrom, Stanley Larue Bower, Jr., Stephen L. Hahn
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Patent number: 7143574Abstract: The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter by adjusting the engine air/fuel ratio based on estimates of the actual amount of oxidants stored in the catalyst. An available oxidant storage capacity of the catalyst is determined by establishing an oxidant set point location, i.e., a location in the catalyst about which the system controls the oxidant storage. The oxidant set point is established based on the temperatures of the different potential set point locations and the levels of deterioration of the different potential set point locations, as well as the oxidant storage capacity of the emission control device system.Type: GrantFiled: January 14, 2004Date of Patent: December 5, 2006Assignee: Ford Global Technologies, LLCInventors: Donald James Lewis, Kevin Ronald Carlstrom, Stanley Larue Bower, Jr., Stephen L. Hahn
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Patent number: 7076943Abstract: The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter by adjusting the engine air/fuel ratio based on estimates of the actual amount of oxidants stored in the catalyst. An available oxidant storage capacity of the catalyst is determined by establishing an oxidant set point location, i.e., a location in the catalyst about which the system controls the oxidant storage. The oxidant set point is established based on the temperatures of the different potential set point locations and the levels of deterioration of the different potential set point locations, as well as the oxidant storage capacity of the emission control device system.Type: GrantFiled: May 11, 2005Date of Patent: July 18, 2006Assignee: Ford Global Technologies, LLCInventors: Donald James Lewis, Kevin Ronald Carlstrom, Stanley Larue Bower, Jr., Stephen L. Hahn
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Patent number: 7007461Abstract: The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter by adjusting the engine air/fuel ratio based on estimates of the actual amount of oxidants stored in the catalyst. The oxidant storage capacity of the catalyst is adjusted by controlling engine spark in response to an estimate of a current amount of oxidants stored in the catalyst and an estimate of the total available oxidant storage capacity of the catalyst. To maintain engine speed in spite of adjustments to the engine spark, the engine air mass is also adjusted.Type: GrantFiled: April 28, 2004Date of Patent: March 7, 2006Assignee: Ford Global Technologies, LLCInventors: Donald James Lewis, Kevin Ronald Carlstrom, Stanley Larue Bower, Jr., Stephen L. Hahn
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Patent number: 6993899Abstract: The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter by adjusting the engine air/fuel ratio based on estimates of the actual amount of oxidants stored in the catalyst. The oxidant storage capacity of the catalyst is adjusted by controlling engine spark in response to an estimate of a current amount of oxidants stored in the catalyst and an estimate of the total available oxidant storage capacity of the catalyst. To maintain engine speed in spite of adjustments to the engine spark, the engine air mass is also adjusted.Type: GrantFiled: June 20, 2001Date of Patent: February 7, 2006Assignee: Ford Global Technologies, LLCInventors: Donald James Lewis, Kevin Ronald Carlstrom, Stanley Larue Bower, Jr., Stephen L. Hahn
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Patent number: 6964159Abstract: The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter. The claimed invention comprises adjusting an air/fuel ratio in the cylinders of an internal combustion engine to maintain a desired level of oxidants in the catalytic converter. At various times, the actual amount of oxidants stored in the catalytic converter is determined. The actual oxidant amount is compared to a target amount of oxidants to be stored in the catalytic converter. The air/fuel ratio in the cylinders is adjusted based on magnitude of the difference between the actual oxidant amount and the target oxidant amount to prevent NOx and hydrocarbon breakthrough.Type: GrantFiled: October 2, 2002Date of Patent: November 15, 2005Assignee: Ford Global Technologies, LLCInventors: Donald James Lewis, Kevin Ronald Carlstrom, Stanley Larue Bower, Jr., Stephen L. Hahn
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Patent number: 6964160Abstract: The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter by adjusting the engine air/fuel ratio based on estimates of the actual amount of oxidants stored in the catalyst. The oxidant storage capacity of the catalyst is adjusted by controlling engine spark in response to an estimate of a current amount of oxidants stored in the catalyst and an estimate of the total available oxidant storage capacity of the catalyst. To maintain engine speed in spite of adjustments to the engine spark, the engine air mass is also adjusted.Type: GrantFiled: March 9, 2004Date of Patent: November 15, 2005Assignee: Ford Global Technologies, LLCInventors: Donald James Lewis, Kevin Ronald Carlstrom, Stanley Larue Bower, Jr., Stephen L. Hahn
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Publication number: 20050229588Abstract: The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter by adjusting the engine air/fuel ratio based on estimates of the actual amount of oxidants stored in the catalyst. The oxidant storage capacity of the catalyst is adjusted by controlling engine spark in response to an estimate of a current amount of oxidants stored in the catalyst and an estimate of the total available oxidant storage capacity of the catalyst. To maintain engine speed in spite of adjustments to the engine spark, the engine air mass is also adjusted.Type: ApplicationFiled: June 17, 2005Publication date: October 20, 2005Inventors: Donald James Lewis, Kevin Ronald Carlstrom, Stanley Larue Bower, Stephen Hahn
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Patent number: 6912844Abstract: The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter by adjusting the engine air/fuel ratio based on estimates of the actual amount of oxidants stored in the catalyst. An available oxidant storage capacity of the catalyst is determined by establishing an oxidant set point location, i.e., a location in the catalyst about which the system controls the oxidant storage. The oxidant set point is established based on the temperatures of the different potential set point locations and the levels of deterioration of the different potential set point locations, as well as the oxidant storage capacity of the emission control device system.Type: GrantFiled: June 24, 2003Date of Patent: July 5, 2005Assignee: Ford Global Technologies, LLCInventors: Donald James Lewis, Kevin Ronald Carlstrom, Stanley Larue Bower, Jr., Stephen L. Hahn
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Publication number: 20040200210Abstract: The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter by adjusting the engine air/fuel ratio based on estimates of the actual amount of oxidants stored in the catalyst. The oxidant storage capacity of the catalyst is adjusted by controlling engine spark in response to an estimate of a current amount of oxidants stored in the catalyst and an estimate of the total available oxidant storage capacity of the catalyst. To maintain engine speed in spite of adjustments to the engine spark, the engine air mass is also adjusted.Type: ApplicationFiled: April 28, 2004Publication date: October 14, 2004Inventors: Donald James Lewis, Kevin Ronald Carlstrom, Stanley Larue Bower, Stephen L. Hahn
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Publication number: 20040154286Abstract: The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter by adjusting the engine air/fuel ratio based on estimates of the actual amount of oxidants stored in the catalyst. The oxidant storage capacity of the catalyst is adjusted by controlling engine spark in response to an estimate of a current amount of oxidants stored in the catalyst and an estimate of the total available oxidant storage capacity of the catalyst. To maintain engine speed in spite of adjustments to the engine spark, the engine air mass is also adjusted.Type: ApplicationFiled: March 9, 2004Publication date: August 12, 2004Inventors: Donald James Lewis, Kevin Ronald Carlstrom, Stanley Larue Bower, Stephen L. Hahn
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Patent number: 6769243Abstract: The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter. The invention comprises adjusting an air/fuel ratio in the cylinders of an internal combustion engine to maintain the amount of oxidants stored in the catalyst at or near an oxidant target value. The oxidant target value is either a pre-determined constant value or a dynamically-determined value that is calculated based on engine operating conditions. The air/fuel ratio in the cylinders is adjusted based on the magnitude of the difference between the actual oxidant amount and the target oxidant amount to prevent NOx and hydrocarbon breakthrough.Type: GrantFiled: June 10, 2002Date of Patent: August 3, 2004Assignee: Ford Global Technologies, LLCInventors: Donald James Lewis, Kevin Ronald Carlstrom, Stanley Larue Bower, Jr., Stephen L. Hahn
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Publication number: 20040128984Abstract: The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter by adjusting the engine air/fuel ratio based on estimates of the actual amount of oxidants stored in the catalyst. An available oxidant storage capacity of the catalyst is determined by establishing an oxidant set point location, i.e., a location in the catalyst about which the system controls the oxidant storage. The oxidant set point is established based on the temperatures of the different potential set point locations and the levels of deterioration of the different potential set point locations, as well as the oxidant storage capacity of the emission control device system.Type: ApplicationFiled: January 14, 2004Publication date: July 8, 2004Inventors: Donald James Lewis, Kevin Ronald Carlstrom, Stanley Larue Bower, Stephen L. Hahn
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Patent number: 6751947Abstract: The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter by adjusting the engine air/fuel ratio based on estimates of the actual amount of oxidants stored in the catalyst. To do so, the invented system estimates an amount of oxidants stored in the catalyst. The amount of oxidants stored is estimated by determining an amount of oxidants that are available for storage by the catalyst or that are needed to oxidize hydrocarbons being produced by the engine. Based thereon, a change in oxidant storage in the catalyst is calculated. The estimate of the amount of oxidants that are available for storage by the catalyst or that are needed to oxidize hydrocarbons is adjusted based on a feedback parameter.Type: GrantFiled: June 10, 2002Date of Patent: June 22, 2004Assignee: Ford Global Technologies, LLCInventors: Donald James Lewis, Kevin Ronald Carlstrom, Stanley Larue Bower, Jr., Stephen L. Hahn
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Publication number: 20040073353Abstract: The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter by adjusting the engine air/fuel ratio based on estimates of the actual amount of oxidants stored in the catalyst. The oxidant storage capacity of the catalyst is adjusted by controlling engine spark in response to an estimate of a current amount of oxidants stored in the catalyst and an estimate of the total available oxidant storage capacity of the catalyst. To maintain engine speed in spite of adjustments to the engine spark, the engine air mass is also adjusted.Type: ApplicationFiled: June 20, 2001Publication date: April 15, 2004Inventors: Donald James Lewis, Kevin Ronald Carlstrom, Stanley Larue Bower, Stephen L. Hahn
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Publication number: 20040003586Abstract: The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter by adjusting the engine air/fuel ratio based on estimates of the actual amount of oxidants stored in the catalyst. An available oxidant storage capacity of the catalyst is determined by establishing an oxidant set point location, i.e., a location in the catalyst about which the system controls the oxidant storage. The oxidant set point is established based on the temperatures of the different potential set point locations and the levels of deterioration of the different potential set point locations, as well as the oxidant storage capacity of the emission control device system.Type: ApplicationFiled: June 24, 2003Publication date: January 8, 2004Inventors: Donald James Lewis, Kevin Ronald Carlstrom, Stanley Larue Bower, Stephen L. Hahn