Patents by Inventor Joseph P Ivacko

Joseph P Ivacko 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 upshift run-through detection and control
    Patent number: 8131435
    Abstract: A control system for a transmission of a vehicle comprises an actuation module and an upshift control module. The transmission has a first gear that corresponds to a first transmission ratio and a second gear that corresponds to a second transmission ratio that is less than the first transmission ratio. The actuation module controls an amount torque transferred to the second gear using a friction device. The upshift control module selectively increases the amount of torque transferred to the second gear based on a comparison of the first transmission ratio and a measured transmission ratio at a predetermined period of time after an upshift to the second gear is commanded, wherein the measured transmission ratio is determined based on an input speed of the transmission divided by an output speed of the transmission.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: March 6, 2012
    Inventors: Joseph P Ivacko, James Robert Somerville, John J. Koenig, Andriy Nikitin
  • TRANSMISSION UPSHIFT RUN-THROUGH DETECTION AND CONTROL
    Publication number: 20090312921
    Abstract: A control system for a transmission of a vehicle comprises an actuation module and an upshift control module. The transmission has a first gear that corresponds to a first transmission ratio and a second gear that corresponds to a second transmission ratio that is less than the first transmission ratio. The actuation module controls an amount torque transferred to the second gear using a friction device. The upshift control module selectively increases the amount of torque transferred to the second gear based on a comparison of the first transmission ratio and a measured transmission ratio at a predetermined period of time after an upshift to the second gear is commanded, wherein the measured transmission ratio is determined based on an input speed of the transmission divided by an output speed of the transmission.
    Type: Application
    Filed: October 22, 2008
    Publication date: December 17, 2009
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Joseph P. Ivacko, James Robert Somerville, John J. Koenig, Andriy Nikitin