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).

  • Publication number: 20160252026
    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: May 10, 2016
    Publication date: September 1, 2016
    Inventors: Steven Wooldridge, Gopichandra Surnilla, Jianwen James Yi, Brad Alan Boyer, James Alfred Hilditch, Michael Howard Shelby, Benjamin Richard Petersen
  • Publication number: 20160237922
    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: April 26, 2016
    Publication date: August 18, 2016
    Inventors: Brad Alan VanDerWege, Michael Howard Shelby
  • Publication number: 20160177849
    Abstract: Methods and systems for operating an engine during conditions where ambient humidity changes over time are presented. In one non-limiting example, an engine air flow limit is adjusted to increase engine air flow during high humidity conditions such that an engine may provide equivalent torque output during the high humidity conditions as compared to when the engine is operated during low humidity conditions.
    Type: Application
    Filed: December 19, 2014
    Publication date: June 23, 2016
    Inventors: Gopichandra Surnilla, Jeffrey Allen Doering, Michael Howard Shelby, Stephen B. Smith, Mohannad Hakeem
  • Patent number: 9346451
    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: Grant
    Filed: April 4, 2014
    Date of Patent: May 24, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Joseph Norman Ulrey, Jianwen James Yi, Michael Howard Shelby, John Eric Rollinger
  • Patent number: 9347390
    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: Grant
    Filed: March 20, 2013
    Date of Patent: May 24, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Chris Paul Glugla, Michael Damian Czekala, Michael Howard Shelby
  • Publication number: 20160131088
    Abstract: Methods and systems are provided for engine dilution control via direct injection of water from a reservoir. In one example, a method may include during select conditions, direct injecting fluid from a reservoir into an EGR cooler. This approach can be used to supplement EGR flow during situations that decrease EGR flow.
    Type: Application
    Filed: November 11, 2014
    Publication date: May 12, 2016
    Inventors: Daniel Joseph Styles, Michael Howard Shelby, James Alfred Hilditch, Michael Damian Czekala, Joseph Norman Ulrey
  • Publication number: 20160131053
    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: January 19, 2016
    Publication date: May 12, 2016
    Inventors: Steven Wooldridge, Gopichandra Surnilla, Brad Alan Boyer, James Alfred Hilditch, Michael Howard Shelby, Chris Paul Glugla, Benjamin Richard Petersen
  • Patent number: 9334826
    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: Grant
    Filed: August 23, 2013
    Date of Patent: May 10, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Steven Wooldridge, Gopichandra Surnilla, Jianwen James Yi, Brad Alan Boyer, James Alfred Hilditch, Michael Howard Shelby, Benjamin Richard Petersen
  • Patent number: 9322340
    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: Grant
    Filed: October 5, 2012
    Date of Patent: April 26, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Brad Alan VanDerWege, Michael Howard Shelby
  • Patent number: 9309837
    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: Grant
    Filed: August 13, 2013
    Date of Patent: April 12, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Joseph Norman Ulrey, Gregory Patrick McConville, Daniel Joseph Styles, Ross Dykstra Pursifull, Michael Howard Shelby
  • Patent number: 9303557
    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: Grant
    Filed: August 13, 2013
    Date of Patent: April 5, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Joseph Norman Ulrey, Gregory Patrick McConville, Daniel Joseph Styles, Ross Dykstra Pursifull, Michael Howard Shelby
  • Patent number: 9297320
    Abstract: Methods and systems are provided for exhaust catalyst temperature control by metering exhaust bypass flow from a dedicated EGR cylinder. A continuously variable bypass valve may be adjusted to vary an amount of exhaust directed to an exhaust catalyst from a dedicated EGR cylinder via a bypass passage relative to exhaust recirculated to the engine intake via an EGR passage. At lower catalyst temperatures, more exhaust is metered via the bypass passage to enable catalyst temperature to be maintained above an activation level.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: March 29, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: James Alfred Hilditch, Michael Howard Shelby, Daniel Joseph Styles, Chris Paul Glugla, Michael Damian Czekala
  • Patent number: 9284909
    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: Grant
    Filed: August 23, 2013
    Date of Patent: March 15, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Steven Wooldridge, Gopichandra Surnilla, Brad Alan Boyer, James Alfred Hilditch, Michael Howard Shelby, Chris Paul Glugla, Benjamin Richard Petersen
  • Patent number: 9279393
    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: Grant
    Filed: January 17, 2013
    Date of Patent: March 8, 2016
    Assignee: 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
  • Publication number: 20160025021
    Abstract: Methods and systems are provided for exhaust catalyst temperature control by metering exhaust bypass flow from a dedicated EGR cylinder. A continuously variable bypass valve may be adjusted to vary an amount of exhaust directed to an exhaust catalyst from a dedicated EGR cylinder via a bypass passage relative to exhaust recirculated to the engine intake via an EGR passage. At lower catalyst temperatures, more exhaust is metered via the bypass passage to enable catalyst temperature to be maintained above an activation level.
    Type: Application
    Filed: July 25, 2014
    Publication date: January 28, 2016
    Inventors: James Alfred Hilditch, Michael Howard Shelby, Daniel Joseph Styles, Chris Paul Glugla, Michael Damian Czekala
  • Publication number: 20160017847
    Abstract: Systems and methods for increasing EGR gas temperature for an engine that includes at least one dedicated EGR cylinder. The dedicated EGR cylinder may provide exhaust gas to engine cylinders and the exhaust gas does not include exhaust gases from cylinders other than the dedicated EGR cylinder. The dedicated EGR cylinder may allow the engine to operate at higher EGR dilution levels.
    Type: Application
    Filed: July 17, 2014
    Publication date: January 21, 2016
    Inventors: James Alfred Hilditch, Michael Howard Shelby, Michael Damian Czekala, Gregory Patrick McConville
  • Publication number: 20150354477
    Abstract: Methods and systems are provided for reducing torque transients experienced when a dedicated EGR cylinder is deactivated to reduce EGR. Before deactivating the dedicated cylinder, an intake throttle position and spark timing of remaining engine cylinders is adjusted to build-up torque reserve in anticipation of a negative torque transient at deactivation. Then, the throttle position or spark timing is adjusted to reduce torque when a positive torque transient is expected.
    Type: Application
    Filed: June 6, 2014
    Publication date: December 10, 2015
    Inventors: Thomas G. Leone, Michael Howard Shelby, Chris Paul Glugla, Michael Damian Czekala, Daniel Joseph Styles
  • Publication number: 20150354492
    Abstract: Methods and systems are provided for accurately estimating an engine volumetric efficiency in a multi-fuel engine system operating with different fuels and different injection systems. The volumetric efficiency is revised based on the fraction of each fuel in the total fuel injection amount as well as based on the injection type for each fuel. The volumetric efficiency estimate compensates for the partial pressure effect and charge cooling effect of each fuel as well as each injection type.
    Type: Application
    Filed: June 4, 2014
    Publication date: December 10, 2015
    Inventors: Gopichandra Surnilla, Michael Howard Shelby
  • Publication number: 20150354482
    Abstract: Systems and methods for improving combustion in a highly exhaust gas diluted engine are disclosed. The methods and systems may be provided in an engine that includes independent control of cylinder valves with respect to other cylinder valves.
    Type: Application
    Filed: June 5, 2014
    Publication date: December 10, 2015
    Inventors: Thomas G. Leone, Michael Howard Shelby, Daniel Joseph Styles, James Alfred Hilditch, Brad Alan Boyer
  • Publication number: 20150337696
    Abstract: Methods and systems are provided for improving purge air-fuel ratio control. Fuel vapors from a canister and the crankcase are selectively purged to a group of cylinders and not to remaining engine cylinders. Exhaust is recirculated from the selected group of cylinders to the engine intake wherefrom the EGR is ingested in the remaining engine cylinders and the selected group of cylinders.
    Type: Application
    Filed: May 22, 2014
    Publication date: November 26, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Chris Paul Glugla, Daniel Joseph Styles, Michael Howard Shelby