Patents by Inventor Da-Som Ahn

Da-Som Ahn 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).

  • EGR effective flow diagnosis method
    Patent number: 11492951
    Abstract: An Exhaust Gas Recirculation (EGR) effective flow diagnosis method includes: measuring an EGR gas temperature by an EGR gas temperature sensor under an EGR gas temperature rise condition of an EGR system on an intake line; determining the degree of the EGR gas temperature rise; and determining whether an EGR effective flow is excessive or insufficient according to the degree of the EGR gas temperature rise.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: November 8, 2022
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Dong-Sun Kim, Da-Som Ahn, Young-Rak Choi
  • EGR EFFECTIVE FLOW DIAGNOSIS METHOD
    Publication number: 20210164381
    Abstract: An Exhaust Gas Recirculation (EGR) effective flow diagnosis method includes: measuring an EGR gas temperature by an EGR gas temperature sensor under an EGR gas temperature rise condition of an EGR system on an intake line; determining the degree of the EGR gas temperature rise; and determining whether an EGR effective flow is excessive or insufficient according to the degree of the EGR gas temperature rise.
    Type: Application
    Filed: March 19, 2020
    Publication date: June 3, 2021
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Dong-Sun Kim, Da-Som Ahn, Young-Rak Choi