Patents by Inventor Kenneth Seong-uk Kim

Kenneth Seong-uk Kim 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).

  • System and method for controlling a compression ignition engine
    Patent number: 12056967
    Abstract: In some examples, a method for estimating the cetane number of a fuel includes receiving current engine operating condition measurements from a compression ignition (CI) engine using the fuel, and determining a value for a current engine performance indicator. The method further includes determining a projected engine performance indicator value for the CI engine based on the current estimated cetane number, current engine control signals and the current engine operating condition measurements. The method also includes determining that a difference between the value of the current engine performance indicator and the projected engine performance indicator value is greater than a threshold amount. If the difference is greater than the threshold amount, the method also includes determining a new estimated cetane number.
    Type: Grant
    Filed: May 12, 2023
    Date of Patent: August 6, 2024
    Assignees: Regents of the University of Minnesota, The United States of America As Represented By the Secretary of The Army
    Inventors: Zongxuan Sun, Xiaonan Dong, Clifford Francis Webster Goertemiller, Kenneth Seong-uk Kim, Chol-bum Mike Kweon
  • SYSTEM AND METHOD FOR CONTROLLING A COMPRESSION IGNITION ENGINE
    Publication number: 20230368590
    Abstract: In some examples, a method for estimating the cetane number of a fuel includes receiving current engine operating condition measurements from a compression ignition (CI) engine using the fuel, and determining a value for a current engine performance indicator. The method further includes determining a projected engine performance indicator value for the CI engine based on the current estimated cetane number, current engine control signals and the current engine operating condition measurements. The method also includes determining that a difference between the value of the current engine performance indicator and the projected engine performance indicator value is greater than a threshold amount. If the difference is greater than the threshold amount, the method also includes determining a new estimated cetane number.
    Type: Application
    Filed: May 12, 2023
    Publication date: November 16, 2023
    Inventors: Zongxuan Sun, Xiaonan Dong, Clifford Francis Webster Goertemiller, Kenneth Seong-uk Kim, Chol-bum Mike Kweon