Patents by Inventor Eric Krengel
Eric Krengel 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: 10760520Abstract: Methods and systems are described for controlling fuel injection in an engine equipped with a dual injector system including a port injector and a direct injector. A ratio of port injected fuel to direct injected fuel is adjusted based at least on intake valve temperature. The proportion of fuel port injected into a cylinder is increased as the intake valve temperature for the given cylinder increases to improve fuel vaporization in the intake port.Type: GrantFiled: August 16, 2016Date of Patent: September 1, 2020Assignee: Ford Global Technologies, LLCInventors: Gopichandra Surnilla, Eric Krengel, Joseph Lyle Thomas, Todd Anthony Rumpsa, Michael Howard Shelby
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Patent number: 10294883Abstract: Methods and system for controlling air-fuel ratios in an internal combustion engine are disclosed. One embodiment comprises, adjusting a sensor calibration correction value of an exhaust sensor upstream of a catalyst based on an exhaust sensor downstream of the catalyst. The adjustment of the sensor calibration correction value takes advantage of the fact that certain aromatic hydrocarbons causing errors in the reading of the upstream sensor are not present at the downstream sensor due to sufficient catalytic activity of a catalyst positioned between the sensors.Type: GrantFiled: June 26, 2017Date of Patent: May 21, 2019Assignee: Ford Global Technologies, LLCInventors: Eric Krengel, Steven Schwochert
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Publication number: 20170292465Abstract: Methods and system for controlling air-fuel ratios in an internal combustion engine are disclosed. One embodiment comprises, adjusting a sensor calibration correction value of an exhaust sensor upstream of a catalyst based on an exhaust sensor downstream of the catalyst. The adjustment of the sensor calibration correction value takes advantage of the fact that certain aromatic hydrocarbons causing errors in the reading of the upstream sensor are not present at the downstream sensor due to sufficient catalytic activity of a catalyst positioned between the sensors.Type: ApplicationFiled: June 26, 2017Publication date: October 12, 2017Inventors: Eric Krengel, Steven Schwochert
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Patent number: 9726067Abstract: Methods and systems are provided for adjusting a grille shutter opening based on an estimated amount of fuel in oil dilution. In one example, a method may include adjusting a grille shutter opening to a closed position in response to an oil dilution amount above a threshold, the position determined based on the oil dilution amount in addition to each of engine coolant temperature and acceleration/deceleration.Type: GrantFiled: January 7, 2015Date of Patent: August 8, 2017Assignee: Ford Global Technologies, LLCInventors: Mohannad Hakeem, Shuya Shark Yamada, Patrick Shearer, Joseph Patrick Whitehead, Eric Krengel, Gopichandra Surnilla
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Patent number: 9708999Abstract: Methods and systems are provided for controlling exhaust emissions by adjusting an injection profile for different fuels injected into an engine cylinder from different fuel injectors during engine start and crank. By splitting fuel injection during start and cranking so that fuel of lower alcohol content is port injected and fuel of higher alcohol content is direct injected as one or multiple injections, the soot load of the engine can be reduced and fuel economy can be improved.Type: GrantFiled: January 18, 2016Date of Patent: July 18, 2017Assignee: Ford Global Technologies, LLCInventors: Gopichandra Surnilla, Steven Schwochert, Peter C. Moilanen, Eric Krengel, Todd Anthony Rumpsa
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Patent number: 9695731Abstract: Methods and system for controlling air-fuel ratios in an internal combustion engine are disclosed. One embodiment comprises, adjusting a sensor calibration correction value of an exhaust sensor upstream of a catalyst based on an exhaust sensor downstream of the catalyst. The adjustment of the sensor calibration correction value takes advantage of the fact that certain aromatic hydrocarbons causing errors in the reading of the upstream sensor are not present at the downstream sensor due to sufficient catalytic activity of a catalyst positioned between the sensors.Type: GrantFiled: June 24, 2011Date of Patent: July 4, 2017Assignee: Ford Global Technologies, LLCInventors: Eric Krengel, Steven Schwochert
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Publication number: 20160356236Abstract: Methods and systems are described for controlling fuel injection in an engine equipped with a dual injector system including a port injector and a direct injector. A ratio of port injected fuel to direct injected fuel is adjusted based at least on intake valve temperature. The proportion of fuel port injected into a cylinder is increased as the intake valve temperature for the given cylinder increases to improve fuel vaporization in the intake port.Type: ApplicationFiled: August 16, 2016Publication date: December 8, 2016Inventors: Gopichandra Surnilla, Eric Krengel, Joseph Lyle Thomas, Todd Anthony Rumpsa, Michael Howard Shelby
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Patent number: 9435287Abstract: Methods and systems are described for controlling fuel injection in an engine equipped with a dual injector system including a port injector and a direct injector. A ratio of port injected fuel to direct injected fuel is adjusted based at least on intake valve temperature. The proportion of fuel port injected into a cylinder is increased as the intake valve temperature for the given cylinder increases to improve fuel vaporization in the intake port.Type: GrantFiled: February 25, 2014Date of Patent: September 6, 2016Assignee: Ford Global Technologies, LLCInventors: Gopichandra Surnilla, Eric Krengel, Joseph Lyle Thomas, Todd Anthony Rumpsa, Michael Howard Shelby
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Publication number: 20160194999Abstract: Methods and systems are provided for adjusting a grille shutter opening based on an estimated amount of fuel in oil dilution. In one example, a method may include adjusting a grille shutter opening to a closed position in response to an oil dilution amount above a threshold, the position determined based on the oil dilution amount in addition to each of engine coolant temperature and acceleration/deceleration.Type: ApplicationFiled: January 7, 2015Publication date: July 7, 2016Inventors: Mohannad Hakeem, Shuya Shark Yamada, Patrick Shearer, Joseph Patrick Whitehead, Eric Krengel, Gopichandra Surnilla
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Publication number: 20160131073Abstract: Methods and systems are provided for controlling exhaust emissions by adjusting an injection profile for different fuels injected into an engine cylinder from different fuel injectors during engine start and crank. By splitting fuel injection during start and cranking so that fuel of lower alcohol content is port injected and fuel of higher alcohol content is direct injected as one or multiple injections, the soot load of the engine can be reduced and fuel economy can be improved.Type: ApplicationFiled: January 18, 2016Publication date: May 12, 2016Inventors: Gopichandra Surnilla, Steven Schwochert, Peter C. Moilanen, Eric Krengel, Todd Anthony Rumpsa
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Patent number: 9303577Abstract: Methods and systems are provided for controlling exhaust emissions by adjusting an injection profile for fuel injected into an engine cylinder from a plurality of fuel injectors during engine start and crank. By splitting injection of fuel during start so that a portion of fuel is port injected and a remaining portion is direct injected as one or multiple injections, the soot load of the engine can be reduced and fuel economy can be improved.Type: GrantFiled: December 19, 2012Date of Patent: April 5, 2016Assignee: Ford Global Technologies, LLCInventors: Gopichandra Surnilla, Steven Schwochert, Peter C. Moilanen, Eric Krengel
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Patent number: 9297329Abstract: Methods and systems are provided for controlling exhaust emissions by adjusting an injection profile for fuel injected into an engine cylinder from a plurality of fuel injectors during engine start and crank. By splitting injection of fuel during start so that a portion of fuel is port injected and a remaining portion is direct injected as one or multiple injections, the soot load of the engine can be reduced and fuel economy can be improved. The injections are adjusted based on the alcohol content of the injected fuel to take advantage of the charge cooling properties of the fuel.Type: GrantFiled: April 1, 2013Date of Patent: March 29, 2016Assignee: Ford Global Technologies, LLCInventors: Gopichandra Surnilla, Steven Schwochert, Peter C. Moilanen, Eric Krengel
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Patent number: 9255541Abstract: Methods and systems are provided for controlling exhaust emissions by adjusting an injection profile for different fuels injected into an engine cylinder from different fuel injectors during engine start and crank. By splitting fuel injection during start and cranking so that fuel of lower alcohol content is port injected and fuel of higher alcohol content is direct injected as one or multiple injections, the soot load of the engine can be reduced and fuel economy can be improved.Type: GrantFiled: April 1, 2013Date of Patent: February 9, 2016Assignee: Ford Global Technologies, LLCInventors: Gopichandra Surnilla, Steven Schwochert, Peter C. Moilanen, Eric Krengel, Todd Anthony Rumpsa
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Patent number: 9222423Abstract: A method for starting an internal combustion engine having direct fuel injection, comprising of adjusting a number of direct injections per combustion cycle based on a cylinder event number from a first cylinder event.Type: GrantFiled: January 24, 2014Date of Patent: December 29, 2015Assignee: Ford Global Technologies, LLCInventors: Eric Storhok, Eric Curtis, Zheng Xu, Jianwen Yi, Eric Krengel
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Publication number: 20150240737Abstract: Methods and systems are described for controlling fuel injection in an engine equipped with a dual injector system including a port injector and a direct injector. A ratio of port injected fuel to direct injected fuel is adjusted based at least on intake valve temperature. The proportion of fuel port injected into a cylinder is increased as the intake valve temperature for the given cylinder increases to improve fuel vaporization in the intake port.Type: ApplicationFiled: February 25, 2014Publication date: August 27, 2015Applicant: Ford Global Technologies, LLCInventors: Gopichandra Surnilla, Eric Krengel, Joseph Lyle Thomas, Todd Anthony Rumpsa, Michael Howard Shelby
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Publication number: 20140318498Abstract: A system and method for compensating for, or alleviating accumulation of, coking residues on fuel injectors is disclosed. The method includes adjusting an engine operating parameter based on a shift in a fuel injector current profile during an initial current rise of injector activation.Type: ApplicationFiled: April 24, 2013Publication date: October 30, 2014Applicant: Ford Global Technologies, LLCInventors: Todd Anthony Rumpsa, Joseph Norman Ulrey, Eric Krengel
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Publication number: 20140297159Abstract: Methods and systems are provided for controlling exhaust emissions by adjusting an injection profile for different fuels injected into an engine cylinder from different fuel injectors during engine start and crank. By splitting fuel injection during start and cranking so that fuel of lower alcohol content is port injected and fuel of higher alcohol content is direct injected as one or multiple injections, the soot load of the engine can be reduced and fuel economy can be improved.Type: ApplicationFiled: April 1, 2013Publication date: October 2, 2014Applicant: Ford Global Technologies, LLCInventors: Gopichandra Surnilla, Steven Schwochert, Peter C. Moilanen, Eric Krengel, Todd Anthony Rumpsa
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Publication number: 20140297162Abstract: Methods and systems are provided for controlling exhaust emissions by adjusting an injection profile for fuel injected into an engine cylinder from a plurality of fuel injectors during engine start and crank. By splitting injection of fuel during start so that a portion of fuel is port injected and a remaining portion is direct injected as one or multiple injections, the soot load of the engine can be reduced and fuel economy can be improved. The injections are adjusted based on the alcohol content of the injected fuel to take advantage of the charge cooling properties of the fuel.Type: ApplicationFiled: April 1, 2013Publication date: October 2, 2014Applicant: Ford Global Technologies, LLCInventors: Gopichandra Surnilla, Steven Schwochert, Peter C. Moilanen, Eric Krengel
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Publication number: 20140172275Abstract: Methods and systems are provided for controlling exhaust emissions by adjusting an injection profile for fuel injected into an engine cylinder from a plurality of fuel injectors during engine start and crank. By splitting injection of fuel during start so that a portion of fuel is port injected and a remaining portion is direct injected as one or multiple injections, the soot load of the engine can be reduced and fuel economy can be improved.Type: ApplicationFiled: December 19, 2012Publication date: June 19, 2014Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Gopichandra Surnilla, Steven Schwochert, Peter C. Moilanen, Eric Krengel
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Publication number: 20140137837Abstract: A method for starting an internal combustion engine having direct fuel injection, comprising of adjusting a number of direct injections per combustion cycle based on a cylinder event number from a first cylinder event.Type: ApplicationFiled: January 24, 2014Publication date: May 22, 2014Applicant: Ford Global Technologies, LLCInventors: Eric Storhok, Eric Curtis, Zheng Xu, Jianwen Yi, Eric Krengel