Patents by Inventor Todd Anthony Rumpsa

Todd Anthony Rumpsa 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).

  • Patent number: 10260436
    Abstract: Methods and systems are provided for determining changes in a flow area of an exhaust gas recirculation (EGR) valve for EGR flow estimates due to a change in temperature difference between a stem and body of the EGR valve. In one example, a method includes adjusting an EGR valve based on an estimate of EGR flow, the EGR flow estimated based on a pressure difference across the EGR valve and an adjusted valve flow area. The adjusted valve flow area may be based on the temperature difference between the stem and body of the EGR valve.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: April 16, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Daniel Joseph Styles, James Alfred Hilditch, Imtiaz Ali, Yan Wang, Todd Anthony Rumpsa
  • Patent number: 9938953
    Abstract: Methods and systems are provided for improving engine spark and torque control. In one example, adaptive spark control of an engine may include a modifier that adjusts the inferred fuel octane estimate and a spark adaptation based on ambient humidity. The method allows the speed-load dependent variation in octane effect of humidity to be reduced.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: April 10, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Mohannad Abdullah Hakeem, Gopichandra Surnilla, Todd Anthony Rumpsa, William Charles Ruona
  • Patent number: 9897027
    Abstract: Methods and systems are provided for estimating an impact of PCV hydrocarbons on an output of an intake oxygen sensor. In one example, a method may include disabling EGR flow when the impact of PCV hydrocarbons on the output of the intake oxygen sensor is above a threshold. The impact of the PCV hydrocarbons on the output of the intake oxygen sensor may be based on a difference between the output of the intake oxygen sensor and a DPOV sensor when EGR is flow and a difference between the output of the intake oxygen sensor and expected blow-by when EGR is not flowing.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: February 20, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, James Alfred Hilditch, Stephen B. Smith, Michael Howard Shelby, Todd Anthony Rumpsa, Mohannad Hakeem
  • Patent number: 9765688
    Abstract: Systems and methods for operating a compressor and a compressor recirculation valve of a turbocharged engine to avoid the possibility of compressor surge are presented. The systems and methods position the compressor recirculation valve responsive to a compressor surge line that is based on two other compressor surge lines that may be a function of compressor pressure ratio and compressor flow.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: September 19, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Hamid-Reza Ossareh, Todd Anthony Rumpsa, Adam Nathan Banker, Matthew John Gerhart, Gregory Patrick McConville, Baitao Xiao
  • Publication number: 20170260919
    Abstract: Methods and systems are provided for determining changes in a flow area of an exhaust gas recirculation (EGR) valve for EGR flow estimates due to a change in temperature difference between a stem and body of the EGR valve. In one example, a method includes adjusting an EGR valve based on an estimate of EGR flow, the EGR flow estimated based on a pressure difference across the EGR valve and an adjusted valve flow area. The adjusted valve flow area may be based on the temperature difference between the stem and body of the EGR valve.
    Type: Application
    Filed: May 25, 2017
    Publication date: September 14, 2017
    Inventors: Gopichandra Surnilla, Daniel Joseph Styles, James Alfred Hilditch, Imtiaz Ali, Yan Wang, Todd Anthony Rumpsa
  • Patent number: 9708999
    Abstract: 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: Grant
    Filed: January 18, 2016
    Date of Patent: July 18, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Steven Schwochert, Peter C. Moilanen, Eric Krengel, Todd Anthony Rumpsa
  • Patent number: 9683500
    Abstract: Methods and systems are provided for reducing EGR estimation errors during lean engine operating conditions. During lean engine operation, EGR is disabled if the estimated exhaust air-fuel ratio becomes leaner than a lean threshold. The lean threshold is adjusted based on an upper limit of EGR errors that may be tolerated by the engine at a given engine speed and load.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: June 20, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Todd Anthony Rumpsa, James Alfred Hilditch, Timothy Joseph Clark, Ralph Wayne Cunningham, Julia Helen Buckland, Daniel Joseph Styles
  • Patent number: 9664129
    Abstract: Methods and systems are provided for determining changes in a flow area of an exhaust gas recirculation (EGR) valve for EGR flow estimates due to a change in temperature difference between a stem and body of the EGR valve. In one example, a method includes adjusting an EGR valve based on an estimate of EGR flow, the EGR flow estimated based on a pressure difference across the EGR valve and an adjusted valve flow area. The adjusted valve flow area may be based on the temperature difference between the stem and body of the EGR valve.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: May 30, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Daniel Joseph Styles, James Alfred Hilditch, Imtiaz Ali, Yan Wang, Todd Anthony Rumpsa
  • Publication number: 20170002759
    Abstract: Methods and systems are provided for estimating an impact of PCV hydrocarbons on an output of an intake oxygen sensor. In one example, a method may include disabling EGR flow when the impact of PCV hydrocarbons on the output of the intake oxygen sensor is above a threshold. The impact of the PCV hydrocarbons on the output of the intake oxygen sensor may be based on a difference between the output of the intake oxygen sensor and a DPOV sensor when EGR is flow and a difference between the output of the intake oxygen sensor and expected blow-by when EGR is not flowing.
    Type: Application
    Filed: September 13, 2016
    Publication date: January 5, 2017
    Inventors: Gopichandra Surnilla, James Alfred Hilditch, Stephen B. Smith, Michael Howard Shelby, Todd Anthony Rumpsa, Mohannad Hakeem
  • Publication number: 20160369762
    Abstract: Methods and systems are provided for improving engine spark and torque control. In one example, adaptive spark control of an engine may include a modifier that adjusts the inferred fuel octane estimate and a spark adaptation based on ambient humidity. The method allows the speed-load dependent variation in octane effect of humidity to be reduced.
    Type: Application
    Filed: June 17, 2015
    Publication date: December 22, 2016
    Inventors: Mohannad Abdullah Hakeem, Gopichandra Surnilla, Todd Anthony Rumpsa, William Charles Ruona
  • Patent number: 9518287
    Abstract: Methods and systems are provided for improving engine exhaust emissions while enabling exhaust catalyst regeneration following an engine lean event. Prior to a VDE event, or prior to an engine idle-stop, ammonia is produced and stored on an exhaust underbody SCR catalyst. Then, during the engine restart after the VDE mode or the idle-stop, the stored ammonia is used to treat exhaust NOx species while an upstream exhaust underbody three-way catalyst is regenerated.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: December 13, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Joseph Robert Theis, James Michael Kerns, Michael James Uhrich, Giovanni Cavataio, Thomas G. Leone, Jeffrey Allen Doering, Todd Anthony Rumpsa
  • Publication number: 20160356236
    Abstract: 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: Application
    Filed: August 16, 2016
    Publication date: December 8, 2016
    Inventors: Gopichandra Surnilla, Eric Krengel, Joseph Lyle Thomas, Todd Anthony Rumpsa, Michael Howard Shelby
  • Patent number: 9453476
    Abstract: A method, comprising: operating an engine cylinder with fuel from a first injector and not a second injector and activating the second injector in response to a rail pressure increase of a fuel rail, the fuel rail coupled to the second injector. In this way, degradation of the second injector may be reduced by activating the second injector and allowing fuel flow through the second injector to reduce the pressure and temperature of the fuel rail.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: September 27, 2016
    Assignee: Ford Global Technologies, LLC
    Inventor: Todd Anthony Rumpsa
  • Patent number: 9441564
    Abstract: Methods and systems are provided for estimating an impact of PCV hydrocarbons on an output of an intake oxygen sensor. In one example, a method may include disabling EGR flow when the impact of PCV hydrocarbons on the output of the intake oxygen sensor is above a threshold. The impact of the PCV hydrocarbons on the output of the intake oxygen sensor may be based on a difference between the output of the intake oxygen sensor and a DPOV sensor when EGR is flow and a difference between the output of the intake oxygen sensor and expected blow-by when EGR is not flowing.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: September 13, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, James Alfred Hilditch, Stephen B. Smith, Michael Howard Shelby, Todd Anthony Rumpsa, Mohannad Hakeem
  • Patent number: 9435287
    Abstract: 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: Grant
    Filed: February 25, 2014
    Date of Patent: September 6, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Eric Krengel, Joseph Lyle Thomas, Todd Anthony Rumpsa, Michael Howard Shelby
  • Publication number: 20160230684
    Abstract: Methods and systems are provided for determining changes in a flow area of an exhaust gas recirculation (EGR) valve for EGR flow estimates due to a change in temperature difference between a stem and body of the EGR valve. In one example, a method includes adjusting an EGR valve based on an estimate of EGR flow, the EGR flow estimated based on a pressure difference across the EGR valve and an adjusted valve flow area. The adjusted valve flow area may be based on the temperature difference between the stem and body of the EGR valve.
    Type: Application
    Filed: February 6, 2015
    Publication date: August 11, 2016
    Inventors: Gopichandra Surnilla, Daniel Joseph Styles, James Alfred Hilditch, Imtiaz Ali, Yan Wang, Todd Anthony Rumpsa
  • Publication number: 20160169096
    Abstract: Systems and methods for operating a compressor and a compressor recirculation valve of a turbocharged engine to avoid the possibility of compressor surge are presented. The systems and methods position the compressor recirculation valve responsive to a compressor surge line that is based on two other compressor surge lines that may be a function of compressor pressure ratio and compressor flow.
    Type: Application
    Filed: December 11, 2014
    Publication date: June 16, 2016
    Inventors: Hamid-Reza Ossareh, Todd Anthony Rumpsa, Adam Nathan Banker, Matthew John Gerhart, Gregory Patrick McConville, Baitao Xiao
  • Publication number: 20160131073
    Abstract: 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: Application
    Filed: January 18, 2016
    Publication date: May 12, 2016
    Inventors: Gopichandra Surnilla, Steven Schwochert, Peter C. Moilanen, Eric Krengel, Todd Anthony Rumpsa
  • Publication number: 20160108825
    Abstract: Systems and methods for reactivating cylinders of an engine that have been temporarily deactivated to conserve fuel are presented. The systems and methods adjust fuel injection quantity and timing of direct fuel injectors to reduce particulate emissions that may form in cylinders that are being reactivated due to reduced piston and combustion chamber temperatures that may occur in newly reactivated cylinders.
    Type: Application
    Filed: October 20, 2014
    Publication date: April 21, 2016
    Inventor: Todd Anthony Rumpsa
  • Patent number: 9316172
    Abstract: Methods and systems are provided for maintaining stoichiometry of an exhaust gas during operation of a fuel injector at a threshold pulse width. In response to operation of a fuel injector at the threshold pulse width and a rich exhaust gas air-fuel ratio, airflow is increased to the intake manifold. Engine actuators may also be adjusted to maintain torque during the increased airflow while operating the fuel injectors at the threshold pulse width.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: April 19, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Thomas G. Leone, William Charles Ruona, Todd Anthony Rumpsa