Patents by Inventor Jeffrey M. Hutmacher

Jeffrey M. Hutmacher 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: 11236695
    Abstract: Methods and systems are provided for monitoring a fuel injector of an internal combustion engine. In one embodiment, a method includes: receiving a set of feature data, the feature data sensed from a fuel injector during a fuel injection event; processing, by a processor, the set of feature data with a decision tree model to generate a prediction of a fault status; and selectively generating, by the processor, a notification signal based on the prediction.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: February 1, 2022
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jin Shen, Jeffrey M. Hutmacher, Patricia M. Laskowsky, Dana J. Suttman, Iman Mohammadrezazadeh, Ruggero Scorcioni, Vincent DeSapio
  • Patent number: 11098666
    Abstract: A system includes a three-way catalyst (TWC) sulfur load module, a cylinder/fuel cutoff module, a fuel control module, and a valve control module. The TWC sulfur load module is configured to determine an amount of sulfur deposited on a three-way catalyst of an engine in a vehicle. The cylinder/fuel cutoff module is configured to determine whether to enable deceleration cylinder cutoff (DCCO) based on the amount of sulfur deposited on the three-way catalyst. The fuel control module is configured to control a fuel injector to selectively stop fuel injection in the engine when DCCO is enabled. The valve control module is configured to selectively maintain intake and exhaust valves of the engine in a closed position when DCCO is enabled.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: August 24, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Michael A. Smith, Vijay A. Ramappan, Michael J. Lucido, Jeffrey M. Hutmacher, Scott T. Feldmann, Randy L. Dufresne
  • Publication number: 20210079864
    Abstract: Methods and systems are provided for monitoring a fuel injector of an internal combustion engine. In one embodiment, a method includes: receiving a set of feature data, the feature data sensed from a fuel injector during a fuel injection event; processing, by a processor, the set of feature data with a decision tree model to generate a prediction of a fault status; and selectively generating, by the processor, a notification signal based on the prediction.
    Type: Application
    Filed: September 17, 2019
    Publication date: March 18, 2021
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jin Shen, Jeffrey M. Hutmacher, Patricia M. Laskowsky, Dana J. Suttman, Iman Mohammadrezazadeh, Ruggero Scorcioni, Vincent DeSapio
  • Patent number: 10914262
    Abstract: Methods and systems are provided for monitoring a fuel injector of an internal combustion engine. In one embodiment, a method includes: receiving a set of feature data, the feature data sensed from a fuel injector during a fuel injection event; processing, by a processor, the set of feature data with a machine learning model to generate a prediction of a fault status; and selectively generating, by the processor, a notification signal based on the prediction.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: February 9, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Patricia M. Laskowsky, Dana J. Suttman, Jin Shen, Jeffrey M. Hutmacher
  • Patent number: 10883436
    Abstract: A method to detect and mitigate sensor or actuator degradation in an automobile system includes: collecting a signal data output from at least one device which is outputting the signal data in response to monitored operational parameters of a motor vehicle system; analyzing patterns of the signal data compared to a signal data output from a nominal operating one of the at least one device using an artificial intelligence program; and identifying when the patterns of the signal data exceed a threshold level indicating the at least one sensor or actuator is operating in a degraded condition.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: January 5, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Kevin C. Wong, Jeffrey M. Hutmacher, Marcus S. Gilbert
  • Patent number: 10526992
    Abstract: A method to detect and mitigate sensor degradation in an automobile system includes: collecting output signal data from at least one of a sensor and an actuator which is outputting the signal data related to operational parameters of a vehicle system; placing the sensor or the actuator in communication with a fault box used to purposely corrupt the output signal data; analyzing patterns of the output signal data compared to signal data from a nominal operating sensor or actuator using an artificial intelligence program; identifying when a statistical range of the patterns exceeds a first threshold level; and modifying a control signal to change the operational parameters of the vehicle system.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: January 7, 2020
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Christopher E. Whitney, Kevin C. Wong, Marcus S. Gilbert, Jeffrey M. Hutmacher
  • Publication number: 20180298839
    Abstract: A method to detect and mitigate sensor or actuator degradation in an automobile system includes: collecting a signal data output from at least one device which is outputting the signal data in response to monitored operational parameters of a motor vehicle system; analyzing patterns of the signal data compared to a signal data output from a nominal operating one of the at least one device using an artificial intelligence program; and identifying when the patterns of the signal data exceed a threshold level indicating the at least one sensor or actuator is operating in a degraded condition.
    Type: Application
    Filed: April 12, 2017
    Publication date: October 18, 2018
    Inventors: Kevin C. Wong, Jeffrey M. Hutmacher, Marcus S. Gilbert
  • Publication number: 20180291832
    Abstract: A method to detect and mitigate sensor degradation in an automobile system includes: collecting output signal data from at least one of a sensor and an actuator which is outputting the signal data related to operational parameters of a vehicle system; placing the sensor or the actuator in communication with a fault box used to purposely corrupt the output signal data; analyzing patterns of the output signal data compared to signal data from a nominal operating sensor or actuator using an artificial intelligence program; identifying when a statistical range of the patterns exceeds a first threshold level; and modifying a control signal to change the operational parameters of the vehicle system.
    Type: Application
    Filed: April 5, 2017
    Publication date: October 11, 2018
    Inventors: Christopher E. Whitney, Kevin C. Wong, Marcus S. Gilbert, Jeffrey M. Hutmacher
  • Patent number: 10066576
    Abstract: A method for operating a spark-ignition direct-injection internal combustion engine coupled to an exhaust aftertreatment system including a catalytic converter includes monitoring an operating state of the catalytic converter. The method further includes determining if a piston of the engine is entering an intake stroke. The method further includes injecting a first quantity of fuel into a cylinder in which the piston of the engine is entering the intake stroke, and injecting a second quantity of fuel into the cylinder in which the piston of the engine is entering the intake stroke.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: September 4, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Jesse Michael Gwidt, Jeffrey M. Hutmacher, Rafat F. Hattar
  • Publication number: 20180030918
    Abstract: A method for operating a spark-ignition direct-injection internal combustion engine coupled to an exhaust aftertreatment system including a catalytic converter includes monitoring an operating state of the catalytic converter. The method further includes determining if a piston of the engine is entering an intake stroke. The method further includes injecting a first quantity of fuel into a cylinder in which the piston of the engine is entering the intake stroke, and injecting a second quantity of fuel into the cylinder in which the piston of the engine is entering the intake stroke.
    Type: Application
    Filed: July 26, 2016
    Publication date: February 1, 2018
    Inventors: Jesse Michael Gwidt, Jeffrey M. Hutmacher, Rafat F. Hattar
  • Patent number: 9200975
    Abstract: A pressure diagnostic system includes a pressure error calculating module that generates a pressure error based on a first pressure signal and a second pressure signal. A difference calculating module generates a desired pressure difference based on a current desired pressure and a prior desired pressure. A lag filter module applies lag filter to the pressure error to generate a lag filtered pressure error. A fault module selectively generates a fault based on the lag filtered pressure error.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: December 1, 2015
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Rafat F. Hattar, Jeffrey M. Hutmacher, Paul D. Donar, Matthew Timothy Hamilton
  • Patent number: 8950379
    Abstract: A system for a vehicle includes a pump control module, an adjustment determination module, and an adjusting module. The pump control module selectively disables pumping of a fuel pump that is driven by a spark ignition direct injection (SIDI) engine. A predetermined period after the pumping of the fuel pump is disabled, the adjustment determination module determines a pressure adjustment for a first fuel rail pressure measured using a fuel rail pressure sensor. The adjusting module generates a second fuel rail pressure based on the pressure adjustment and the first fuel rail pressure.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: February 10, 2015
    Inventors: Rafat F. Hattar, Jeffrey M. Hutmacher, Paul D. Donar, Alexander Michel, Daniel Weinand, Dieter Wiedenhöft
  • Patent number: 8838316
    Abstract: A method of warming a catalyst of an exhaust gas treatment system of a hybrid vehicle includes transitioning a rotational speed of an engine to within a pre-defined speed range with an electric motor, and reducing an engine manifold pressure to within a pre-defined pressure range. The engine is fueled after the rotational speed of the engine is within the pre-defined speed range, and the engine manifold pressure is within the pre-defined pressure range. While the engine is being fueled, the engine manifold pressure is increased to within a catalyst light-off pressure range, and the torque output of the engine is increased to within a catalyst light-off operating torque range. The exhaust gas produced from the operation of the engine within the pre-defined speed range, within the catalyst light-off pressure range, and within the catalyst light-off operating torque range heats the catalyst while minimizing emissions.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: September 16, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Christopher E. Whitney, Jeffrey M. Hutmacher, J Michael Ellenberger, James B. Nicholson, Rafat F Hattar
  • Publication number: 20140100728
    Abstract: A method of warming a catalyst of an exhaust gas treatment system of a hybrid vehicle includes transitioning a rotational speed of an engine to within a pre-defined speed range with an electric motor, and reducing an engine manifold pressure to within a pre-defined pressure range. The engine is fueled after the rotational speed of the engine is within the pre-defined speed range, and the engine manifold pressure is within the pre-defined pressure range. While the engine is being fueled, the engine manifold pressure is increased to within a catalyst light-off pressure range, and the torque output of the engine is increased to within a catalyst light-off operating torque range. The exhaust gas produced from the operation of the engine within the pre-defined speed range, within the catalyst light-off pressure range, and within the catalyst light-off operating torque range heats the catalyst while minimizing emissions.
    Type: Application
    Filed: October 9, 2012
    Publication date: April 10, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Christopher E. Whitney, Jeffrey M. Hutmacher, J. Michael Ellenberger, James B. Nicholson, Rafat F. Hattar
  • Publication number: 20140067232
    Abstract: A system for a vehicle includes a pump control module, an adjustment determination module, and an adjusting module. The pump control module selectively disables pumping of a fuel pump that is driven by a spark ignition direct injection (SIDI) engine. A predetermined period after the pumping of the fuel pump is disabled, the adjustment determination module determines a pressure adjustment for a first fuel rail pressure measured using a fuel rail pressure sensor. The adjusting module generates a second fuel rail pressure based on the pressure adjustment and the first fuel rail pressure.
    Type: Application
    Filed: August 28, 2012
    Publication date: March 6, 2014
    Applicant: GM Global Technology Operations LLC
    Inventors: Rafat F. Hattar, Jeffrey M. Hutmacher, Paul D. Donar, Alexander Michel, Daniel Weinand, Dieter Wiedenhöft
  • Publication number: 20130124144
    Abstract: A pressure diagnostic system includes a pressure error calculating module that generates a pressure error based on a first pressure signal and a second pressure signal. A difference calculating module generates a desired pressure difference based on a current desired pressure and a prior desired pressure. A lag filter module applies lag filter to the pressure error to generate a lag filtered pressure error. A fault module selectively generates a fault based on the lag filtered pressure error.
    Type: Application
    Filed: November 15, 2011
    Publication date: May 16, 2013
    Applicant: GM Global Technology Operations LLC
    Inventors: Rafat F. Hattar, Jeffrey M. Hutmacher, Paul D. Donar, Matthew Timothy Hamilton
  • Patent number: 7848874
    Abstract: A fuel control system includes a pressure comparison module that generates a pressure control signal when a fuel supply pressure is greater than a predetermined pressure value, a temperature comparison module that generates a temperature control signal when a temperature of an engine is greater than a predetermined temperature value, and a pre-crank fuel module that selectively dispenses pre-crank fuel prior to cranking the engine based on the pressure control signal and the temperature control signal. A related fuel control method is also provided.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: December 7, 2010
    Inventors: James D. Hay, Mark D. Carr, Jeffrey M. Hutmacher, Louis A. Avallone, Jon C. Miller
  • Patent number: 7793489
    Abstract: An oxygen storage capacity (OSC) monitoring system for a vehicle having a catalytic converter includes an inlet oxygen sensor that generates an inlet sensor signal (ISS) based on an oxygen content of exhaust flowing into the catalytic converter. A control module receives the ISS, increases a closed loop fuel control gain during a first period and determines a fuel control factor based on the ISS during the first period. The control module determines an OSC when an average value of the fuel control factor is greater than a first value and is less than a second value during the first period.
    Type: Grant
    Filed: June 3, 2005
    Date of Patent: September 14, 2010
    Inventors: Wenbo Wang, Richard B. Jess, David N. Belton, Chris R. Thelen, Jeffrey M. Hutmacher, William Western, Ian J. Macewen, Robert J. Genslak
  • Publication number: 20090216425
    Abstract: A fuel control system includes a pressure comparison module that generates a pressure control signal when a fuel supply pressure is greater than a predetermined pressure value, a temperature comparison module that generates a temperature control signal when a temperature of an engine is greater than a predetermined temperature value, and a pre-crank fuel module that selectively dispenses pre-crank fuel prior to cranking the engine based on the pressure control signal and the temperature control signal. A related fuel control method is also provided.
    Type: Application
    Filed: September 10, 2008
    Publication date: August 27, 2009
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC
    Inventors: James D. Hay, Mark D. Carr, Jeffrey M. Hutmacher, Louis A. Avallone, Jon C. Miller