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: 10100761
    Abstract: Systems and methods are provided for increasing the accuracy of air charge estimation for a cylinder that is selectively deactivatable. A controller may deactivate the cylinder in accordance with a firing pattern selected based on torque demand. An air charge estimate of the firing cylinder is then adjusted based on whether the cylinder was fired or skipped on a previous engine cycle when operating according to the selected firing pattern.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: October 16, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Amey Y. Karnik, Mrdjan J. Jankovic, Michael Howard Shelby, Pravin Sashidharan
  • Publication number: 20180291823
    Abstract: Methods and systems are provided for improving engine torque response during transient condition. In one example, a method may include adjusting intake throttle and exhaust waste-gate valve based on the operator torque demand and concurrently, scheduling exhaust gas recirculation (EGR) and variable cam timing (VCT) based on a predicted torque shortfall ratio. The scheduling of EGR and VCT is independent of the actual position of intake throttle and exhaust waste-gate valve.
    Type: Application
    Filed: April 10, 2017
    Publication date: October 11, 2018
    Inventors: John Erik Mikael Hellstrom, Mrdjan J. Jankovic, Michael Howard Shelby, John Eric Rollinger, Adam J. Richards, Paul A. Pietrzyk
  • Publication number: 20180238248
    Abstract: Systems and methods are provided for increasing the accuracy of air charge estimation for a cylinder that is selectively deactivatable. A controller may deactivate the cylinder in accordance with a firing pattern selected based on torque demand. An air charge estimate of the firing cylinder is then adjusted based on whether the cylinder was fired or skipped on a previous engine cycle when operating according to the selected firing pattern.
    Type: Application
    Filed: February 17, 2017
    Publication date: August 23, 2018
    Inventors: Amey Y. Karnik, Mrdjan J. Jankovic, Michael Howard Shelby, Pravin Sashidharan
  • Publication number: 20180238255
    Abstract: Methods and systems are provided for adjusting an amount of water injected upstream of a group of cylinders based on a determined maldistribution of water among cylinders during a water injection event. In one example, a method may include injecting a first amount of water upstream of a first group of cylinders and a different, second amount of water upstream of a second group of cylinders based on operating conditions of the respective cylinder groups. Further, the method may include adjusting water injection and engine operating parameters in response the evaporated and/or condensed portion of water.
    Type: Application
    Filed: April 25, 2018
    Publication date: August 23, 2018
    Inventors: Mohannad Hakeem, Gopichandra Surnilla, Christopher House, Michael Howard Shelby, Joseph Norman Ulrey
  • Publication number: 20180171937
    Abstract: Methods and systems are provided for coordinating water usage with spark usage based on the effect on an engine torque ratio. Water is injected based on torque ratio at a current spark timing relative to torque ratio at borderline knock to improve the impact of the water injection on the engine performance. Manifold water injection and direct water injected are coordinated based on intake manifold humidity.
    Type: Application
    Filed: December 19, 2016
    Publication date: June 21, 2018
    Inventors: Michael Howard Shelby, Gopichandra Surnilla, Mohannad Hakeem
  • Publication number: 20180171904
    Abstract: Methods and systems are provided for operating a split exhaust engine system that provides blowthrough air and exhaust gas recirculation to an intake passage via a first exhaust manifold and exhaust gas to an exhaust passage via a second exhaust manifold. In one example, during a cold start, a method may include adjusting a position of a first valve disposed in an exhaust gas recirculation (EGR) passage based on an engine operating condition, the EGR passage coupled between the first exhaust manifold coupled to a first set of exhaust valves and the intake passage, upstream of a compressor. As one example, the engine operating condition may include an engine temperature or a temperature of a catalyst disposed in the exhaust passage.
    Type: Application
    Filed: December 16, 2016
    Publication date: June 21, 2018
    Inventors: Joseph Norman Ulrey, Michael Howard Shelby, Kim Hwe Ku, Brad Alan Boyer
  • Publication number: 20180170353
    Abstract: Methods and systems are provided for operating a split exhaust engine system that provides blowthrough air and exhaust gas recirculation to an intake passage via a first exhaust manifold and exhaust gas to an exhaust passage via a second exhaust manifold. In one example, the engine system may be installed in a hybrid vehicle, and, in response to a request to restart the engine while the vehicle is being propelled via motor torque only, the engine may be rotated unfueled via the motor torque at less than cranking speed while at least partially opening a valve disposed in a passage coupled between the first exhaust manifold and the intake passage. In another example, in response to the request to restart the engine, all exhaust valves of a second set of exhaust valves coupled to the second exhaust manifold may be deactivated.
    Type: Application
    Filed: December 16, 2016
    Publication date: June 21, 2018
    Inventors: Joseph Norman Ulrey, John D. Russell, Michael Howard Shelby
  • Publication number: 20180171936
    Abstract: Methods and systems are provided for water injection at an intake port of an engine toward or away from intake valves in response to engine operating conditions. In one example, a method may include port injecting water away from an intake valve in response to engine knock and port injecting water towards an intake valve in response to engine dilution demand. Further, the method may include adjusting an amount of water injected based on one or more of a change in manifold temperature and a change in exhaust oxygen level.
    Type: Application
    Filed: December 19, 2016
    Publication date: June 21, 2018
    Inventors: Michael McQuillen, Daniel A. Makled, Mohannad Hakeem, Gopichandra Surnilla, Joseph Norman Ulrey, Michael Howard Shelby
  • Patent number: 9988994
    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: Grant
    Filed: June 6, 2014
    Date of Patent: June 5, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Thomas G. Leone, Michael Howard Shelby, Chris Paul Glugla, Michael Damian Czekala, Daniel Joseph Styles
  • Patent number: 9981654
    Abstract: Methods and systems are provided for improving surge control. When surge conditions are anticipated, motor torque usage is increased to discharge a battery to a lower state of charge. When surge conditions actually occur, engine torque output is limited to a higher level than the engine output required to meet the reduced torque demand, while the excess wheel torque is offset by charging the battery to a higher state of charge.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: May 29, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Kenneth James Miller, Michael Howard Shelby, Thomas G. Leone
  • Patent number: 9976502
    Abstract: Methods and systems are provided for adjusting an amount of water injected upstream of a group of cylinders based on a determined maldistribution of water among cylinders during a water injection event. In one example, a method may include injecting a first amount of water upstream of a first group of cylinders and a different, second amount of water upstream of a second group of cylinders based on operating conditions of the respective cylinder groups. Further, the method may include adjusting water injection and engine operating parameters in response the evaporated and/or condensed portion of water.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: May 22, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Mohannad Hakeem, Gopichandra Surnilla, Christopher House, Michael Howard Shelby, Joseph Norman Ulrey
  • Publication number: 20180100460
    Abstract: Systems and methods for activating and deactivating cylinders of an engine that may activate and deactivate one cylinder independent of other cylinders are presented. In one example, an engine cylinder firing fraction and a remainder value that is based on the engine cylinder firing fraction are a basis for activating and deactivating engine cylinders. The systems and methods also provide for transitioning between different cylinder firing fractions.
    Type: Application
    Filed: October 11, 2016
    Publication date: April 12, 2018
    Inventors: Amey Y. Karnik, Stephen Lee Cooper, Adam Nathan Banker, Michael Howard Shelby, John Eric Rollinger, Adam J. Richards
  • 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
  • Publication number: 20180038300
    Abstract: Methods and systems are provided for adjusting an amount of water injected upstream of a group of cylinders based on a determined maldistribution of water among cylinders during a water injection event. In one example, a method may include injecting a first amount of water upstream of a first group of cylinders and a different, second amount of water upstream of a second group of cylinders based on operating conditions of the respective cylinder groups. Further, the method may include adjusting water injection and engine operating parameters in response the evaporated and/or condensed portion of water.
    Type: Application
    Filed: August 2, 2016
    Publication date: February 8, 2018
    Inventors: Mohannad Hakeem, Gopichandra Surnilla, Christopher House, Michael Howard Shelby, Joseph Norman Ulrey
  • Publication number: 20180023522
    Abstract: Methods and systems are provided for flowing exhaust through a second cooler, arranged downstream of a first cooler and upstream of an intake in an exhaust gas recirculation passage, and extracting condensate for water injection from condensate in cooled exhaust gas exiting the second cooler. In one example, a method may include adjusting the amount of exhaust gas flowing through the second cooler based on an amount of water stored at a water storage tank of a water injection system and engine operating conditions. Further, the method may include selectively flowing exhaust gas from the second cooler to a location upstream or downstream of a compressor in response to engine operating conditions.
    Type: Application
    Filed: July 22, 2016
    Publication date: January 25, 2018
    Inventors: Daniel Joseph Styles, Gopichandra Surnilla, Mohannad Hakeem, Brad Alan VanDerWege, Christopher House, Michael Howard Shelby
  • Patent number: 9845751
    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: January 27, 2017
    Date of Patent: December 19, 2017
    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: 9840976
    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: May 8, 2017
    Date of Patent: December 12, 2017
    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
  • Publication number: 20170349164
    Abstract: Methods and systems are provided for improving surge control. When surge conditions are anticipated, motor torque usage is increased to discharge a battery to a lower state of charge. When surge conditions actually occur, engine torque output is limited to a higher level than the engine output required to meet the reduced torque demand, while the excess wheel torque is offset by charging the battery to a higher state of charge.
    Type: Application
    Filed: June 2, 2016
    Publication date: December 7, 2017
    Inventors: Kenneth James Miller, Michael Howard Shelby, Thomas G. Leone
  • Patent number: 9828955
    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: Grant
    Filed: November 18, 2016
    Date of Patent: November 28, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: James Alfred Hilditch, Michael Howard Shelby, Michael Damian Czekala, Gregory Patrick McConville
  • Patent number: 9822714
    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: April 26, 2016
    Date of Patent: November 21, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Brad Alan VanDerWege, Michael Howard Shelby