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: 20190316530
    Abstract: Methods and systems are provided for improving calibration of a variable compression ratio engine. Cylinder-to-cylinder compression ratio variations are detected and accounted for by comparing cylinder fuel flow and IMEP at each compression ratio setting. Dilution parameters including EGR and VCT schedule are also calibrated to account for the cylinder-to-cylinder compression ratio variations.
    Type: Application
    Filed: June 27, 2019
    Publication date: October 17, 2019
    Inventors: Thomas G. Leone, Michael Howard Shelby, Lyth Alobiedat
  • Patent number: 10415493
    Abstract: Methods and systems are provided for improving calibration of a variable compression ratio engine. Cylinder-to-cylinder compression ratio variations are detected and accounted for by comparing cylinder fuel flow and IMEP at each compression ratio setting. Dilution parameters including EGR and VCT schedule are also calibrated to account for the cylinder-to-cylinder compression ratio variations.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: September 17, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Thomas G. Leone, Michael Howard Shelby, Lyth Alobiedat
  • Publication number: 20190263384
    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: May 14, 2019
    Publication date: August 29, 2019
    Inventors: Joseph Norman Ulrey, John D. Russell, Michael Howard Shelby
  • Patent number: 10378458
    Abstract: Methods and systems are provided for improving calibration of a variable compression ratio engine. Cylinder-to-cylinder compression ratio variations are detected and accounted for by comparing cylinder fuel flow and IMEP at each compression ratio setting. Dilution parameters including EGR and VCT schedule are also calibrated to account for the cylinder-to-cylinder compression ratio variations.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: August 13, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Thomas G. Leone, Michael Howard Shelby, Lyth Alobiedat
  • Publication number: 20190234327
    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: April 12, 2019
    Publication date: August 1, 2019
    Inventors: Joseph Norman Ulrey, Michael Howard Shelby, Kim Hwe Ku, Brad Alan Boyer
  • Publication number: 20190211761
    Abstract: Methods and systems are provided for tracking a fuel puddle mass in the intake port of a deactivated engine cylinder. The difference in fuel evaporation rate in the deactivated cylinder intake is accounted for by applying distinct time constant and gain values to a transient fuel compensation model. A fuel vapor content is clipped once the intake vapor pressure in the intake port of the deactivated cylinder reaches a saturation pressure limit.
    Type: Application
    Filed: January 11, 2018
    Publication date: July 11, 2019
    Inventors: Adithya Pravarun Re Ranga, Amey Karnik, Pravin Sashidharan, Gopichandra Surnilla, Michael Howard Shelby, Eric Storhok
  • Publication number: 20190211762
    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: March 18, 2019
    Publication date: July 11, 2019
    Inventors: Amey Y. Karnik, Stephen Lee Cooper, Adam Nathan Banker, Michael Howard Shelby, John Eric Rollinger, Adam J. Richards
  • Patent number: 10337397
    Abstract: Methods and systems are provided for purging a pre-chamber. In one example, a system is provided with a combustion chamber formed by a cylinder head coupled to a cylinder block and a pre-chamber in fluidic communication with the combustion chamber. The system is also provided with a purge port coupled to the pre-chamber and structured to flow purge air into the pre-chamber, where the flow of the purge air is driven by operation a purge pump and a piston disposed within the combustion chamber.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: July 2, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Michael Howard Shelby, Brad Alan VanDerWege
  • Patent number: 10328924
    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: Grant
    Filed: December 16, 2016
    Date of Patent: June 25, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Joseph Norman Ulrey, John D. Russell, Michael Howard Shelby
  • Patent number: 10316771
    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: Grant
    Filed: December 16, 2016
    Date of Patent: June 11, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Joseph Norman Ulrey, Michael Howard Shelby, Kim Hwe Ku, Brad Alan Boyer
  • Publication number: 20190120147
    Abstract: Methods and systems are provided for improving calibration of a variable compression ratio engine. Cylinder-to-cylinder compression ratio variations are detected and accounted for by comparing cylinder fuel flow and IMEP at each compression ratio setting. Dilution parameters including EGR and VCT schedule are also calibrated to account for the cylinder-to-cylinder compression ratio variations.
    Type: Application
    Filed: October 19, 2017
    Publication date: April 25, 2019
    Inventors: Thomas G. Leone, Michael Howard Shelby, Lyth Alobiedat
  • Publication number: 20190120160
    Abstract: Methods and systems are provided for improving calibration of a variable compression ratio engine. Cylinder-to-cylinder compression ratio variations are detected and accounted for by comparing cylinder fuel flow and IMEP at each compression ratio setting. Dilution parameters including EGR and VCT schedule are also calibrated to account for the cylinder-to-cylinder compression ratio variations.
    Type: Application
    Filed: October 19, 2017
    Publication date: April 25, 2019
    Inventors: Thomas G. Leone, Michael Howard Shelby, Lyth Alobiedat
  • Publication number: 20190113005
    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 10, 2018
    Publication date: April 18, 2019
    Inventors: Michael Howard Shelby, Gopichandra Surnilla, Mohannad Hakeem
  • Patent number: 10247140
    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: Grant
    Filed: December 19, 2016
    Date of Patent: April 2, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Michael McQuillen, Daniel A. Makled, Mohannad Hakeem, Gopichandra Surnilla, Joseph Norman Ulrey, Michael Howard Shelby
  • Patent number: 10233852
    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: Grant
    Filed: October 11, 2016
    Date of Patent: March 19, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Amey Y. Karnik, Stephen Lee Cooper, Adam Nathan Banker, Michael Howard Shelby, John Eric Rollinger, Adam J. Richards
  • Patent number: 10215135
    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: Grant
    Filed: July 22, 2016
    Date of Patent: February 26, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Daniel Joseph Styles, Gopichandra Surnilla, Mohannad Hakeem, Brad Alan VanDerWege, Christopher House, Michael Howard Shelby
  • Patent number: 10167819
    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: Grant
    Filed: December 19, 2016
    Date of Patent: January 1, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Michael Howard Shelby, Gopichandra Surnilla, Mohannad Hakeem
  • Publication number: 20180363539
    Abstract: Methods and systems are provided for purging a pre-chamber. In one example, a system is provided with a combustion chamber formed by a cylinder head coupled to a cylinder block and a pre-chamber in fluidic communication with the combustion chamber. The system is also provided with a purge port coupled to the pre-chamber and structured to flow purge air into the pre-chamber, where the flow of the purge air is driven by operation a purge pump and a piston disposed within the combustion chamber.
    Type: Application
    Filed: June 14, 2017
    Publication date: December 20, 2018
    Inventors: Michael Howard Shelby, Brad Alan VanDerWege
  • Patent number: 10100773
    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: Grant
    Filed: June 4, 2014
    Date of Patent: October 16, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Gopichandra Surnilla, Michael Howard Shelby
  • 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