Patents by Inventor Chunhao I. Lee

Chunhao I. Lee 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 for detecting powertrain torque output
    Patent number: 8457847
    Abstract: A powertrain includes a transmission coupled to a driveline. A method for monitoring torque of the driveline includes monitoring signals from first and second rotational sensors located at respective first and second rotationally-coupled positions of the driveline separated by a distance along the driveline, determining rotation of the driveline at the first and second rotationally-coupled positions from said signals, determining a twist angle derived from a difference between the rotations of the driveline at the first and second rotationally-coupled positions, calculating a driveline torque corresponding to the twist angle, and controlling operation of the powertrain in response to the driveline torque.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: June 4, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Dongxu Li, Kumaraswamy V. Hebbale, Chunhao I. Lee, Farzad Samie, Chi-Kuan Kao, Ming Cao
  • METHOD FOR DETECTING POWERTRAIN TORQUE OUTPUT
    Publication number: 20120078475
    Abstract: A powertrain includes a transmission coupled to a driveline. A method for monitoring torque of the driveline includes monitoring signals from first and second rotational sensors located at respective first and second rotationally-coupled positions of the driveline separated by a distance along the driveline, determining rotation of the driveline at the first and second rotationally-coupled positions from said signals, determining a twist angle derived from a difference between the rotations of the driveline at the first and second rotationally-coupled positions, calculating a driveline torque corresponding to the twist angle, and controlling operation of the powertrain in response to the driveline torque.
    Type: Application
    Filed: September 28, 2010
    Publication date: March 29, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: DONGXU LI, KUMARASWAMY V. HEBBALE, Chunhao I. Lee, Farzad Samie, Chi-Kuan Kao, Ming Cao