Patents by Inventor Hyeon A LEE

Hyeon A 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 and system for calculating fuel injection amount of fuel vapor dual purge system
    Patent number: 11047319
    Abstract: The method for calculating the fuel injection amount of a fuel vapor dual purge system may include the steps of calculating, by a controller, volumetric efficiency of a combustion chamber, determining, by the controller, a fuel vapor detection delay time at which the fuel vapor is detected in a surge tank according to the calculated volumetric efficiency of a combustion chamber, calculating, by the controller, a time at which the fuel vapor is injected into the combustion chamber based on the determined fuel vapor detection delay time, and calculating, by the controller, a fuel vapor total injection amount at the time at which the fuel vapor is injected into the combustion chamber. The method may be performed in a turbocharger operation section.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: June 29, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Hyeon A Lee, Kyungwook Choi, Kyu Sup Kim, Tae Kwang Eom
  • METHOD AND SYSTEM FOR CALCULATING FUEL INJECTION AMOUNT OF FUEL VAPOR DUAL PURGE SYSTEM
    Publication number: 20200109674
    Abstract: The method for calculating the fuel injection amount of a fuel vapor dual purge system may include the steps of calculating, by a controller, volumetric efficiency of a combustion chamber, determining, by the controller, a fuel vapor detection delay time at which the fuel vapor is detected in a surge tank according to the calculated volumetric efficiency of a combustion chamber, calculating, by the controller, a time at which the fuel vapor is injected into the combustion chamber based on the determined fuel vapor detection delay time, and calculating, by the controller, a fuel vapor total injection amount at the time at which the fuel vapor is injected into the combustion chamber. The method may be performed in a turbocharger operation section.
    Type: Application
    Filed: December 5, 2018
    Publication date: April 9, 2020
    Inventors: Hyeon A LEE, Kyungwook CHOI, Kyu Sup KIM, Tae Kwang EOM