Patents by Inventor Michael Howard Shelby

Michael Howard Shelby 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: 9175629
    Abstract: A method and system for providing a suitable engine torque response during a transient condition is presented. In one example, when a desired inlet manifold pressure is greater than a throttle inlet pressure of a first throttle, a second throttle positioned upstream from the first throttle is opened to increase the throttle inlet pressure. The method may provide an appropriate torque response while minimizing impact on fuel economy.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: November 3, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Ralph Wayne Cunningham, Matthew John Gerhart, Julia Helen Buckland, Suzanne Kay Wait, Michael Howard Shelby, Jeffrey Allen Doering, Mrdjan J. Jankovic, John Eric Rollinger, Gopichandra Surnilla, Naginder Gogna
  • Publication number: 20150292429
    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: April 14, 2014
    Publication date: October 15, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, James Alfred Hilditch, Stephen B. Smith, Michael Howard Shelby, Todd Anthony Rumpsa, Mohannad Hakeem
  • Publication number: 20150283990
    Abstract: Methods and systems are provided for slowly rotating an engine, unfueled, via a motor prior to an imminent engine restart to heat the engine. By rotating the engine so that heat generated in the compression stroke of a cylinder can be transferred to cylinder walls, thereby expediting engine warm-up. By warming the engine before a restart, particulate emissions generated during an engine cold-start due to direct injection of fuel can be reduced.
    Type: Application
    Filed: April 4, 2014
    Publication date: October 8, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Joseph Norman Ulrey, Jianwen James Yi, Michael Howard Shelby, John Eric Rollinger
  • Publication number: 20150285161
    Abstract: Methods and systems are provided for using compression heating to heat a cylinder piston before cylinder combustion is resumed. Cylinder heating is achieved using combinations of slow unfueled engine rotation where the engine cylinders are heated via compression stroke heating, and slow compressor rotation where the cylinders are heated via compression heating. One or more intake or exhaust heaters may be concurrently operated to expedite cylinder heating.
    Type: Application
    Filed: April 4, 2014
    Publication date: October 8, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Joseph Norman Ulrey, John Eric Rollinger, Michael Howard Shelby, Jianwen James Yi
  • Publication number: 20150240737
    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: February 25, 2014
    Publication date: August 27, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Eric Krengel, Joseph Lyle Thomas, Todd Anthony Rumpsa, Michael Howard Shelby
  • Patent number: 9038580
    Abstract: Methods and systems are provided for enabling engine dilution control. One or more engine diluents are combined to provide a desired engine dilution, the various diluents selected based on their respective combustion stability limits. A ratio of the various diluents used is further adjusted based on engine operating limitations.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: May 26, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Thomas G. Leone, Brad Alan VanDerWege, Christopher House, Michael Howard Shelby
  • Publication number: 20150114346
    Abstract: Methods and systems are provided for adjusting a throttle based on an intake oxygen sensor output. In one example, a method may include adjusting a position of a throttle based on a dilution threshold and a total aircharge dilution level, the total dilution aircharge level based on an output of an intake oxygen sensor. Additionally, spark timing may be adjusted based on the total aircharge dilution level.
    Type: Application
    Filed: October 25, 2013
    Publication date: April 30, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Michael Howard Shelby, James Alfred Hilditch, Jason Williams
  • Publication number: 20150075502
    Abstract: Methods and systems are provided for adjusting a reference voltage for an intake manifold oxygen sensor based on ingestion of hydrocarbons from a fuel system canister and/or an engine crankcase. During conditions when purge or crankcase ventilation hydrocarbons are ingested in the intake aircharge, the intake oxygen sensor is transitioned from operating at a lower reference voltage to a higher reference voltage where the effects of the ingested hydrocarbons on the sensor output are nullified. An EGR dilution of the intake aircharge is estimated based on the output of the sensor at the higher reference voltage while an amount of hydrocarbons ingested is estimated based on a difference between sensor outputs at the higher and lower reference voltages.
    Type: Application
    Filed: September 19, 2013
    Publication date: March 19, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Daniel A. Makled, James Alfred Hilditch, Richard E. Soltis, Michael Howard Shelby, Daniel Joseph Styles
  • Publication number: 20150057911
    Abstract: Methods and systems are provided for improving combustion stability, in particular during transient operations such as tip-out to lower load conditions, when EGR is being purged. Until a desired LP-EGR rate is achieved, fuel may be delivered as a split injection with at least an intake stroke injection and a compression stroke injection. Subsequently, single fuel injection may be resumed.
    Type: Application
    Filed: August 23, 2013
    Publication date: February 26, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Steven Wooldridge, Gopichandra Surnilla, Jianwen James Yi, Brad Alan Boyer, James Alfred Hilditch, Michael Howard Shelby, Benjamin Richard Petersen
  • Publication number: 20150053177
    Abstract: Methods and systems are provided for improving engine knock tolerance, in particular when rapidly ramping in LP-EGR from low levels of EGR. Until a desired LP-EGR rate is achieved, fuel may be delivered as a split injection with at least an intake stroke injection and a compression stroke injection to compensate for the transport delay in EGR filling the intake system. Subsequently, single fuel injection may be resumed.
    Type: Application
    Filed: August 23, 2013
    Publication date: February 26, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Steven Wooldridge, Gopichandra Surnilla, Brad Alan Boyer, James Alfred Hilditch, Michael Howard Shelby, Chris Paul Glugla, Benjamin Richard Petersen
  • Publication number: 20150047317
    Abstract: Methods and systems are provided for using compressor recirculation flow via a venturi to enhance low pressure EGR flow. The opening of a compressor recirculation valve can be adjusted based on EGR flow demand to recirculate cooled compressed air through a venturi while generating vacuum for drawing EGR. The approach allows for concurrent EGR control and surge control.
    Type: Application
    Filed: August 13, 2013
    Publication date: February 19, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Joseph Norman Ulrey, Gregory Patrick McConville, Daniel Joseph Styles, Ross Dykstra Pursifull, Michael Howard Shelby
  • Publication number: 20150047618
    Abstract: Methods and systems are provided for using compressor recirculation flow via a venturi to enhance low pressure EGR flow. The opening of a compressor recirculation valve can be adjusted based on EGR flow demand to recirculate cooled compressed air through a venturi while generating vacuum for drawing EGR. The approach allows for concurrent EGR control and surge control.
    Type: Application
    Filed: August 13, 2013
    Publication date: February 19, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Joseph Norman Ulrey, Gregory Patrick McConville, Daniel Joseph Styles, Ross Dykstra Pursifull, Michael Howard Shelby
  • Publication number: 20140352669
    Abstract: A method and system for providing a suitable engine torque response during a transient condition is presented. In one example, when a desired inlet manifold pressure is greater than a throttle inlet pressure of a first throttle, a second throttle positioned upstream from the first throttle is opened to increase the throttle inlet pressure. The method may provide an appropriate torque response while minimizing impact on fuel economy.
    Type: Application
    Filed: May 28, 2013
    Publication date: December 4, 2014
    Applicant: Ford Global Technologies, LLC
    Inventors: Ralph Wayne Cunningham, Matthew John Gerhart, Julia Helen Buckland, Suzanne Kay Wait, Michael Howard Shelby, Jeffrey Allen Doering, Mrdjan J. Jankovic, John Eric Rollinger, Gopichandra Surnilla, Naginder Gogna
  • Publication number: 20140288808
    Abstract: A method may comprise automatically de-choking an engine and cranking the engine in response to an engine flood event, wherein automatically de-choking the engine comprises automatically cutting fuel to the engine while opening an air intake throttle.
    Type: Application
    Filed: March 20, 2013
    Publication date: September 25, 2014
    Applicant: Ford Global Technologies, LLC
    Inventors: Chris Paul Glugla, Michael Damian Czekala, Michael Howard Shelby
  • Publication number: 20140196703
    Abstract: An engine is provided that includes an exhaust gas recirculation (EGR) conduit in fluidic communication with a first exhaust valve in a cylinder and an intake system, an exhaust conduit in fluidic communication with a second exhaust valve in the cylinder and an emission control device. During operation with the first valve active and the second valve deactivated, a fixed EGR level can be provided. However, during operation with the first valve deactivated and the second valve active, increased engine output can be achieved with reduced EGR without requiring additional exhaust throttling or switching valves.
    Type: Application
    Filed: January 17, 2013
    Publication date: July 17, 2014
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Brad Alan Boyer, Eric Warren Curtis, Kim Hwe Ku, Gregory Patrick McConville, James Douglas Ervin, Daniel Joseph Styles, Joseph Norman Ulrey, Michael Howard Shelby
  • Patent number: 8733320
    Abstract: A method for controlling combustion in a cylinder of a turbocharged engine in which intake air is reserved upstream of the cylinder. The method comprises decreasing an internal EGR rate in the cylinder during a tip-out condition if the temperature of the intake air is above a threshold, and increasing the internal EGR rate in the cylinder during a tip-out condition if the temperature of the intake air is below the threshold.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: May 27, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Michael Howard Shelby, Joseph Norman Ulrey, Daniel Joseph Styles, Christopher House, Brad Alan Boyer, James Hilditch
  • Patent number: 8701630
    Abstract: Methods and systems are provided for improving fuel usage while addressing knock by adjusting the use of spark retard and direct injection of a knock control fluid based on engine operating conditions and the composition of the injected fluid. One or more engine parameters, such as EGR, VCT, boost, throttle position, and CMCV, are coordinated with the direct injection to reduce torque and EGR transients.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: April 22, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, John Nelson, Thomas G. Leone, Michael Howard Shelby, James Eric Anderson
  • Publication number: 20140100762
    Abstract: Methods and systems are provided for improving engine knock control by accounting for a drop in charge cooling efficiency of a knock control fluid at higher temperatures. In response to the prediction of an elevated temperature of a knock control fluid at a time of release from a direct injector, a pulse width of the injection is adjusted. Any knock relief deficits are compensated for using alternate engine adjustments, such as boost or spark timing adjustments.
    Type: Application
    Filed: October 5, 2012
    Publication date: April 10, 2014
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Brad Alan VanDerWege, Michael Howard Shelby
  • Patent number: 8539914
    Abstract: Methods for operating a flexible fuel engine with a fuel reformer which reforms a fuel into a gaseous fuel reformate are provided. Operating parameters of the fuel reformer and delivery of reformate to the engine are adjusted based on an alcohol content of the fuel.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: September 24, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: James Michael Kerns, Thomas G. Leone, Michael Howard Shelby
  • Publication number: 20130218438
    Abstract: Methods and systems are provided for enabling engine dilution control. One or more engine diluents are combined to provide a desired engine dilution, the various diluents selected based on their respective combustion stability limits. A ratio of the various diluents used is further adjusted based on engine operating limitations.
    Type: Application
    Filed: February 21, 2012
    Publication date: August 22, 2013
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Gopichandra Surnilla, Thomas G. Leone, Brad Alan VanDerWege, Christopher House, Michael Howard Shelby