Patents by Inventor Michael Vincent Woon

Michael Vincent Woon 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).

  • Method and apparatus for controlling a powertrain system during deceleration
    Patent number: 9669835
    Abstract: A method for controlling a powertrain includes, in response to an output torque request that includes deceleration, operating an internal combustion engine in a fuel cutoff state and in a cylinder deactivation state, controlling a clutch of a torque converter in an activated state, and operating an electric machine in a regenerative braking state. A state of the powertrain related to engine speed is monitored. The internal combustion engine is commanded to transition from the cylinder deactivation state to an all-cylinder state and the electric machine operates in the regenerative braking state including ramping down magnitude of regenerative braking torque when the engine speed is less than a first threshold speed. The torque converter clutch is commanded to a released state when the engine speed is less than a second threshold speed, with the first threshold speed being greater than the second threshold speed.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: June 6, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Kee Yong Kim, Anthony H. Heap, Michael Andrew Miller, Luke D. Shepley, Michael Vincent Woon
  • METHOD AND APPARATUS FOR CONTROLLING A POWERTRAIN SYSTEM DURING DECELERATION
    Publication number: 20170113695
    Abstract: A method for controlling a powertrain includes, in response to an output torque request that includes deceleration, operating an internal combustion engine in a fuel cutoff state and in a cylinder deactivation state, controlling a clutch of a torque converter in an activated state, and operating an electric machine in a regenerative braking state. A state of the powertrain related to engine speed is monitored. The internal combustion engine is commanded to transition from the cylinder deactivation state to an all-cylinder state and the electric machine operates in the regenerative braking state including ramping down magnitude of regenerative braking torque when the engine speed is less than a first threshold speed. The torque converter clutch is commanded to a released state when the engine speed is less than a second threshold speed, with the first threshold speed being greater than the second threshold speed.
    Type: Application
    Filed: October 27, 2015
    Publication date: April 27, 2017
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Kee Yong Kim, Anthony H. Heap, Michael Andrew Miller, Luke D. Shepley, Michael Vincent Woon