Patents by Inventor Jason Jousma

Jason Jousma 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: 10161512
    Abstract: A transmission includes a torque converter with an impeller, a turbine, a torque converter clutch, a hydraulic torque converter clutch control circuit and a controller that commands a first pressure into the hydraulic torque converter clutch control circuit during a transition period between a torque converter clutch OFF mode to a torque converter clutch ON mode and prior to the torque converter clutch reaching capacity and a second pressure into the hydraulic torque converter clutch control circuit after the torque converter clutch reaches capacity.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: December 25, 2018
    Inventors: Brian M Porto, Jason Jousma, Patrick A Lewis, Jason M France
  • Patent number: 10047856
    Abstract: A method for adjusting clutch fill command pressure for a transmission using a lubrication compensator model includes determining clutch fill line pressure and lubrication compensator model pressures, and adjusting the clutch fill command pressure to achieve the lubrication compensator model pressure based on the torque converter clutch status.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: August 14, 2018
    Inventors: Kristopher J Kokko, Thomas Weglarz, Patrick M Gibson, Jason Jousma
  • Publication number: 20180135747
    Abstract: A method for adjusting clutch fill command pressure for a transmission using a lubrication compensator model includes determining clutch fill line pressure and lubrication compensator model pressures, and adjusting the clutch fill command pressure to achieve the lubrication compensator model pressure based on the torque converter clutch status.
    Type: Application
    Filed: November 14, 2016
    Publication date: May 17, 2018
    Inventors: Kristopher J Kokko, Thomas Weglarz, Patrick M Gibson, Jason Jousma
  • Publication number: 20180058576
    Abstract: A transmission includes a torque converter with an impeller, a turbine, a torque converter clutch, a hydraulic torque converter clutch control circuit and a controller that commands a first pressure into the hydraulic torque converter clutch control circuit during a transition period between a torque converter clutch OFF mode to a torque converter clutch ON mode and prior to the torque converter clutch reaching capacity and a second pressure into the hydraulic torque converter clutch control circuit after the torque converter clutch reaches capacity.
    Type: Application
    Filed: August 24, 2016
    Publication date: March 1, 2018
    Inventors: Brian M. Porto, Jason Jousma, Patrick A. Lewis, Jason M. France
  • Patent number: 9771075
    Abstract: A method is provided for use in a vehicle. The vehicle includes a transmission, a turbocharger, a transmission control module (TCM), an engine, and an engine control module (ECM). The engine includes a crankshaft that rotates at an engine speed and the turbocharger includes a turbine that rotates at a turbine speed. The method includes requesting a downshift of the transmission from an off-going gear ratio to an on-coming gear ratio. The turbine is rotating at an off-going turbine speed at the off-going gear ratio and the turbine is configured to rotate at an on-coming turbine speed at the on-coming gear ratio, greater than the off-going gear speed. A determination is made that the requested downshift is a powerdown low-throttle shift. An engine speed request value is then transmitted from the TCM to the ECM. The transmitted engine speed request value is at least equal to the on-coming gear speed.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: September 26, 2017
    Assignee: GM Global Technology Operations LLC
    Inventor: Jason Jousma
  • Publication number: 20160031445
    Abstract: A method is provided for use in a vehicle. The vehicle includes a transmission, a turbocharger, a transmission control module (TCM), an engine, and an engine control module (ECM). The engine includes a crankshaft that rotates at an engine speed and the turbocharger includes a turbine that rotates at a turbine speed. The method includes requesting a downshift of the transmission from an off-going gear ratio to an on-coming gear ratio. The turbine is rotating at an off-going turbine speed at the off-going gear ratio and the turbine is configured to rotate at an on-coming turbine speed at the on-coming gear ratio, greater than the off-going gear speed. A determination is made that the requested downshift is a powerdown low-throttle shift. An engine speed request value is then transmitted from the TCM to the ECM. The transmitted engine speed request value is at least equal to the on-coming gear speed.
    Type: Application
    Filed: August 1, 2014
    Publication date: February 4, 2016
    Inventor: Jason Jousma