Patents by Inventor Andriy Nikitin

Andriy Nikitin 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 flare detection and mitigation
    Patent number: 9404575
    Abstract: A transmission control module comprises an actuation module and a flare control module. The actuation module controls actuation of a friction device used in shifting from a first transmission ratio to a second transmission ratio. The transmission ratio is based on an input speed of a transmission divided by an output speed of the transmission. The first transmission ratio is greater than the second transmission ratio. The flare control module selectively generates an engine torque reduction request when a measured transmission ratio is greater than a threshold during a shift from the first transmission ratio to the second transmission ratio.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: August 2, 2016
    Assignee: GM Global Technology Operations LLC
    Inventors: James Robert Somerville, John J. Koenig, Christopher A. Spangler, Andriy Nikitin
  • Deceleration dependent shift control
    Patent number: 8712653
    Abstract: A transmission control system for regulating operation of an automatic transmission of a vehicle includes a first module that provides a predetermined shift schedule including upshift and downshift lines and a second module that offsets each of the upshift and downshift lines by an offset amount to provide modified upshift and downshift lines when a deceleration of the vehicle exceeds a threshold deceleration. A third module regulates operation of the automatic transmission based on the modified upshift and downshift lines.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: April 29, 2014
    Inventors: Jayson S. Schwalm, David W. Wright, Christopher A. Spangler, Andriy Nikitin
  • 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
  • TRANSMISSION UPSHIFT FLARE DETECTION AND MITIGATION
    Publication number: 20090005217
    Abstract: A transmission control module comprises an actuation module and a flare control module. The actuation module controls actuation of a friction device used in shifting from a first transmission ratio to a second transmission ratio. The transmission ratio is based on an input speed of a transmission divided by an output speed of the transmission. The first transmission ratio is greater than the second transmission ratio. The flare control module selectively generates an engine torque reduction request when a measured transmission ratio is greater than a threshold during a shift from the first transmission ratio to the second transmission ratio.
    Type: Application
    Filed: January 3, 2008
    Publication date: January 1, 2009
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: James Robert Somerville, John J. Koenig, Christopher A. Spangler, Andriy Nikitin
  • DECELERATION DEPENDENT SHIFT CONTROL
    Publication number: 20080046157
    Abstract: A transmission control system for regulating operation of an automatic transmission of a vehicle includes a first module that provides a predetermined shift schedule including upshift and downshift lines and a second module that offsets each of the upshift and downshift lines by an offset amount to provide modified upshift and downshift lines when a deceleration of the vehicle exceeds a threshold deceleration. A third module regulates operation of the automatic transmission based on the modified upshift and downshift lines.
    Type: Application
    Filed: April 25, 2007
    Publication date: February 21, 2008
    Inventors: Jason S. Schwalm, David W. Wright, Christopher A. Spangler, Andriy Nikitin