Patents by Inventor Andrew James Myrna

Andrew James Myrna 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).

  • Transmission controls to mitigate line pressure instability
    Patent number: 10746298
    Abstract: Air ingestion into a transmission hydraulic system may lead to a number of issues. For example, the time to engage a hydraulically actuated parking mechanism may be excessive. As another example, the pump may not prime properly on a subsequent engine start. The air ingestion issue may be detected based on variability of transmission line pressure. When the line pressure variability exceeds a threshold, actions are taken to mitigate the potential issues.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: August 18, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Scott Joseph Gittins, Andrew James Myrna, Jessica Dyan Britton, Timothy Fedullo, Samuel Melville Glauber
  • Vehicle and system for controlling a vehicle transmission
    Patent number: 10704615
    Abstract: A vehicle includes an engine, a transmission, and a controller. The transmission has clutches, a circuit configured to transport fluid to the clutches, a pump configured to circulate the fluid through the circuit, and an accumulator disposed along the circuit. The controller is programmed to, responsive to an engine start and a fluid temperature being less than a temperature threshold, discharge the accumulator to prime the pump.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: July 7, 2020
    Assignee: Ford Global Technologies, LLC
    Inventors: Scott Joseph Gittins, Timothy Fedullo, Samuel Melville Glauber, Andrew James Myrna, Benjamin Rupley, Ryan Eggebrecht
  • VEHICLE AND SYSTEM FOR CONTROLLING A VEHICLE TRANSMISSION
    Publication number: 20200063805
    Abstract: A vehicle includes an engine, a transmission, and a controller. The transmission has clutches, a circuit configured to transport fluid to the clutches, a pump configured to circulate the fluid through the circuit, and an accumulator disposed along the circuit. The controller is programmed to, responsive to an engine start and a fluid temperature being less than a temperature threshold, discharge the accumulator to prime the pump.
    Type: Application
    Filed: August 21, 2018
    Publication date: February 27, 2020
    Inventors: Scott Joseph GITTINS, Timothy FEDULLO, Samuel Melville GLAUBER, Andrew James MYRNA, Benjamin RUPLEY, Ryan EGGEBRECHT
  • Transmission Controls To Mitigate Line Pressure Instability
    Publication number: 20200062258
    Abstract: Air ingestion into a transmission hydraulic system may lead to a number of issues. For example, the time to engage a hydraulically actuated parking mechanism may be excessive. As another example, the pump may not prime properly on a subsequent engine start. The air ingestion issue may be detected based on variability of transmission line pressure. When the line pressure variability exceeds a threshold, actions are taken to mitigate the potential issues.
    Type: Application
    Filed: August 27, 2018
    Publication date: February 27, 2020
    Inventors: Scott Joseph Gittins, Andrew James Myrna, Jessica Dyan Britton, Timothy Fedullo, Samuel Melville Glauber