Patents by Inventor Gary D. Neely
Gary D. Neely 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: 9388787Abstract: A glow plug control apparatus for an engine of a motor vehicle, comprising at least one glow plug; a power source to apply electric power to the at least one glow plug; and a control unit comprising a microprocessor configured and arranged to determine glow plug supply power to be applied from the power source to the at least one glow plug based on input from stored vehicle data and from a plurality of engine sensors, wherein the input includes data of engine operating parameters including fresh air intake mass airflow, intake manifold total mass airflow, intake manifold temperature, coolant temperature, glow plug temperature and total fuel injection quantity.Type: GrantFiled: February 19, 2013Date of Patent: July 12, 2016Assignee: SOUTHWEST RESEARCH INSTITUTEInventors: Gary D. Neely, Jayant V. Sarlashkar
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Patent number: 9062577Abstract: A method for controlling emissions in the exhaust gas of a diesel engine, the engine having an exhaust gas recirculation (EGR) system. The engine's exhaust aftertreatment system need have only an oxidation catalyst and a particulate filter (with no NOx reduction or adsorption device). In “normal” engine conditions, the engine is operated with a lean air-fuel ratio, with “normal” engine conditions being engine conditions other than transient load increase engine conditions. Also, during normal engine conditions, the EGR system is used to reduce engine-out NOx. During transient load increase engine conditions, the engine is operated stoichiometrically or near stoichiometrically and the use of EGR is interrupted.Type: GrantFiled: May 14, 2012Date of Patent: June 23, 2015Assignee: SOUTHWEST RESEARCH INSTITUTEInventors: Chad P. Koci, Vlad L. C. Ulmet, Stefan Simescu, Magdi K. Khair, Gary D. Neely
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Patent number: 9027333Abstract: Methods and systems for reducing hydrocarbon emissions from an internal combustion engine. The engine's exhaust aftertreatment system has at least a particulate matter (soot) filter and means for actively regenerating the particulate matter filter. During operation of the engine, the soot loading state of the particulate matter filter is monitored. The filter is regenerated when required, but the regeneration is controlled so that the particulate matter filter retains a small level of soot loading. This soot “pre-loading” ensures hydrocarbon reduction during the next cold start.Type: GrantFiled: July 1, 2013Date of Patent: May 12, 2015Assignee: Southwest Research InstituteInventors: Gary D. Neely, Darius Mehta
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Patent number: 8996282Abstract: The present disclosure provides a method to operate an internal combustion engine comprising storing a fueling command map having fueling index values, each of the fueling index values defining values for a plurality of fueling parameters, and a plurality of predetermined non-linear relationships that directly relate fueling index values to in-cylinder oxygen mass values; determining a temporary fueling index value; determining an in-cylinder oxygen mass value; identifying a predetermined relationship that directly relates fueling index values to in-cylinder oxygen mass values from the plurality of predetermined relationships to provide an identified predetermined relationship; determining that a current relationship of the temporary fueling index value to the calculated oxygen mass value differs from the identified predetermined relationship; and adjusting the temporary fueling index value using at least one fueling correction model to provide a revised fueling index value that approaches the identified predType: GrantFiled: August 5, 2011Date of Patent: March 31, 2015Assignee: Southwest Research InstituteInventors: Shizuo Sasaki, Vikram N. Iyengar, Jayant V. Sarlashkar, Gary D. Neely
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Publication number: 20150000254Abstract: Methods and systems for reducing hydrocarbon emissions from an internal combustion engine. The engine's exhaust aftertreatment system has at least a particulate matter (soot) filter and means for actively regenerating the particulate matter filter. During operation of the engine, the soot loading state of the particulate matter filter is monitored. The filter is regenerated when required, but the regeneration is controlled so that the particulate matter filter retains a small level of soot loading. This soot “pre-loading” ensures hydrocarbon reduction during the next cold start.Type: ApplicationFiled: July 1, 2013Publication date: January 1, 2015Inventors: Gary D. Neely, Darius Mehta
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Patent number: 8903633Abstract: A control system for an internal combustion engine, wherein in the control system, an in-cylinder oxygen amount is calculated and a compression end temperature, which is a temperature of the pressurized air-fuel mixture, is calculated according to an intake air temperature. A fuel injection parameter is determined according to the compression end temperature, the in-cylinder oxygen amount, and an engine rotational speed. The fuel injector is controlled based on the determined fuel injection parameter. By determining the fuel injection parameter according to the compression end temperature in addition to the in-cylinder oxygen amount, the combustion state is adjusted when the compression end temperature is low, thereby maintaining a stable combustion state.Type: GrantFiled: December 28, 2012Date of Patent: December 2, 2014Assignee: Honda Motor Co., Ltd.Inventors: Shizuo Sasaki, Jayant Sarlashkar, Gary D. Neely
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Publication number: 20140236460Abstract: A glow plug control apparatus for an engine of a motor vehicle, comprising at least one glow plug; a power source to apply electric power to the at least one glow plug; and a control unit comprising a microprocessor configured and arranged to determine glow plug supply power to be applied from the power source to the at least one glow plug based on input from stored vehicle data and from a plurality of engine sensors, wherein the input includes data of engine operating parameters including fresh air intake mass airflow, intake manifold total mass airflow, intake manifold temperature, coolant temperature, glow plug temperature and total fuel injection quantity.Type: ApplicationFiled: February 19, 2013Publication date: August 21, 2014Applicant: SOUTHWEST RESEARCH INSTITUTEInventors: Gary D. NEELY, Jayant V. SARLASHKAR
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Publication number: 20130304357Abstract: A method for controlling emissions in the exhaust gas of a diesel engine, the engine having an exhaust gas recirculation (EGR) system. The engine's exhaust aftertreatment system need have only an oxidation catalyst and a particulate filter (with no NOx reduction or adsorption device). In “normal” engine conditions, the engine is operated with a lean air-fuel ratio, with “normal” engine conditions being engine conditions other than transient load increase engine conditions. Also, during normal engine conditions, the EGR system is used to reduce engine-out NOx. During transient load increase engine conditions, the engine is operated stoichiometrically or near stoichiometrically and the use of EGR is interrupted.Type: ApplicationFiled: May 14, 2012Publication date: November 14, 2013Applicant: SOUTHWEST RESEARCH INSTITUTEInventors: Chad P. Koci, Vlad L.C. Ulmet, Stefan Simescu, Magdi K. Khair, Gary D. Neely
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Publication number: 20130035842Abstract: The present disclosure provides a method to operate an internal combustion engine comprising storing a fueling command map having fueling index values, each of the fueling index values defining values for a plurality of fueling parameters, and a plurality of predetermined non-linear relationships that directly relate fueling index values to in-cylinder oxygen mass values; determining a temporary fueling index value; determining an in-cylinder oxygen mass value; identifying a predetermined relationship that directly relates fueling index values to in-cylinder oxygen mass values from the plurality of predetermined relationships to provide an identified predetermined relationship; determining that a current relationship of the temporary fueling index value to the calculated oxygen mass value differs from the identified predetermined relationship; and adjusting the temporary fueling index value using at least one fueling correction model to provide a revised fueling index value that approaches the identified predType: ApplicationFiled: August 5, 2011Publication date: February 7, 2013Applicant: SOUTHWEST RESEARCH INSTITUTEInventors: Shizuo Sasaki, Vikram N. Iyengar, Jayant V. Sarlashkar, Gary D. Neely
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Patent number: 8316633Abstract: A method of reducing emissions by operating a diesel engine in a stoichiometric air-fuel ratio mode. To achieve an optimal stoichiometric mode, intake throttling, boost air intake control, fuel injection adjustments, and exhaust gas recirculation (EGR) are used. This mode of operation permits an aftertreatment system that has only an oxidation catalyst and a particulate filter.Type: GrantFiled: May 29, 2009Date of Patent: November 27, 2012Assignee: Southwest Research InstituteInventors: Magdi K. Khair, Stefan Simescu, Gary D. Neely, Vlad L. C. Ulmet
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Patent number: 8108123Abstract: A system and method for using a sliding mode control algorithm to control flow rates from air handling actuators and fuel injectors of an internal combustion engine. The sliding mode control is based on an engine model that represents the engine in terms of pressure and oxygen content states of the intake and exhaust manifolds (as a linear term) and controllable flow rates (as a nonlinear term).Type: GrantFiled: May 12, 2009Date of Patent: January 31, 2012Assignee: Southwest Research InstituteInventors: Jayant V. Sarlashkar, Theodore M. Kostek, Ryan Roecker, Gary D. Neely, Shizuo Sasaki
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Publication number: 20100300073Abstract: A method of reducing emissions by operating a diesel engine in a stoichiometric air-fuel ratio mode. To achieve an optimal stoichiometric mode, intake throttling, boost air intake control, fuel injection adjustments, and exhaust gas recirculation (EGR) are used. This mode of operation permits an aftertreatment system that has only an oxidation catalyst and a particulate filter.Type: ApplicationFiled: May 29, 2009Publication date: December 2, 2010Applicant: Southwest Research InstituteInventors: Magdi K. Khair, Stefan Simescu, Gary D. Neely, Vlad L. C. Ulmet
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Publication number: 20100292907Abstract: A system and method for using a sliding mode control algorithm to control flow rates from air handling actuators and fuel injectors of an internal combustion engine. The sliding mode control is based on an engine model that represents the engine in terms of pressure and oxygen content states of the intake and exhaust manifolds (as a linear term) and controllable flow rates (as a nonlinear term).Type: ApplicationFiled: May 12, 2009Publication date: November 18, 2010Applicant: Southwest Research InstituteInventors: Jayant V. Sarlashkar, Theodore M. Kostek, Ryan Roecker, Gary D. Neely, Shizuo Sasaki
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Patent number: 7831374Abstract: A method of controlling combustion of an internal combustion engine that use fuel injection and that uses lean and rich modes of operation. Combustion control values, such as for fuel injection timing and quantity are determined by a torque representative value. This value is obtained from estimated in-cylinder conditions and from engine speed.Type: GrantFiled: June 6, 2008Date of Patent: November 9, 2010Assignee: Southwest Research InstituteInventors: Shizuo Sasaki, Gary D. Neely, Jayant V. Sarlashkar
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Patent number: 7779680Abstract: A method and system for estimating engine-out NOx from a diesel engine. The estimation is calculated from a mathematical model that expresses engine-out NOx as functions of cylinder pressure, intake oxygen, and effective temperature, respectively. Input data for each of these functions may be obtained from fuel quantity data and from measured data, the latter including intake pressure, cylinder pressure, intake oxygen concentration, coolant temperature, and intake manifold temperature.Type: GrantFiled: May 12, 2008Date of Patent: August 24, 2010Assignee: Southwest Research InstituteInventors: Shizuo Sasaki, Jayant V. Sarlashkar, Gary D. Neely
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Publication number: 20090306877Abstract: A method of controlling combustion of an internal combustion engine that use fuel injection and that uses lean and rich modes of operation. Combustion control values, such as for fuel injection timing and quantity are determined by a torque representative value. This value is obtained from estimated in-cylinder conditions and from engine speed.Type: ApplicationFiled: June 6, 2008Publication date: December 10, 2009Applicant: Southwest Research InsitituteInventors: Shizuo Sasaki, Gary D. Neely, Jayant V. Sarlashkar
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Publication number: 20090277259Abstract: A method and system for estimating engine-out NOx from a diesel engine. The estimation is calculated from a mathematical model that expresses engine-out NOx as functions of cylinder pressure, intake oxygen, and effective temperature, respectively. Input data for each of these functions may be obtained from fuel quantity data and from measured data, the latter including intake pressure, cylinder pressure, intake oxygen concentration, coolant temperature, and intake manifold temperature.Type: ApplicationFiled: May 12, 2008Publication date: November 12, 2009Applicant: Southwest Research InstituteInventors: Shizuo Sasaki, Jayant V. Sarlashkar, Gary D. Neely
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Patent number: 7562649Abstract: Combustion control of a diesel engine is achieved, such that the engine has a monotonic relation between intake manifold pressure and engine torque. For a given engine speed, fuel injection parameters are primarily determined by intake manifold pressure. However, the determination of the fuel injection parameters is also secondarily based on correction factors such as oxygen concentration, intake manifold temperature, and coolant temperature. In effect, the fuel injection parameters reflect the in-cylinder gas mass.Type: GrantFiled: July 5, 2007Date of Patent: July 21, 2009Assignee: Southwest Research InstituteInventors: Jayant V. Sarlashkar, Shizuo Sasaki, Gary D. Neely
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Publication number: 20090007888Abstract: Combustion control of a diesel engine is achieved, such that the engine has a monotonic relation between intake manifold pressure and engine torque. For a given engine speed, fuel injection parameters are primarily determined by intake manifold pressure. However, the determination of the fuel injection parameters is also secondarily based on correction factors such as oxygen concentration, intake manifold temperature, and coolant temperature. In effect, the fuel injection parameters reflect the in-cylinder gas mass.Type: ApplicationFiled: July 5, 2007Publication date: January 8, 2009Inventors: Jayant V. Sarlashkar, Shizuo Sasaki, Gary D. Neely
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Patent number: 7266439Abstract: A fuel property adaptive control system for controlling the performance of an engine, such as an internal combustion engine. An on-board fuel classifier classifies the fuel that the engine is running. Based on stored properties for that fuel, the system selects optimal engine control parameters.Type: GrantFiled: October 5, 2005Date of Patent: September 4, 2007Assignee: Southwest Research InstituteInventors: Junmin Wang, Gary D. Neely, Shizuo Sasaki, Thomas W. Ryan, III