Patents by Inventor Je Hyeon Um

Je Hyeon Um 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 device for self-diagnosing ignition coil of engine of vehicle
    Patent number: 11739724
    Abstract: A method for self-diagnosing an ignition coil of an engine of a vehicle, which self-diagnoses an error of the ignition coil supplying voltage to a spark plug includes generating, by a self-diagnosis signal generating device included in the ignition coil, a fault flag signal by monitoring a discharge time of secondary current which flows on a secondary coil of the ignition coil, and generating, by a controller, a diagnostic trouble code (DTC) according to a duration of the fault flag signal.
    Type: Grant
    Filed: May 4, 2022
    Date of Patent: August 29, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventor: Je Hyeon Um
  • METHOD AND DEVICE FOR SELF-DIAGNOSING IGNITION COIL OF ENGINE OF VEHICLE
    Publication number: 20230052720
    Abstract: A method for self-diagnosing an ignition coil of an engine of a vehicle, which self-diagnoses an error of the ignition coil supplying voltage to a spark plug includes generating, by a self-diagnosis signal generating device included in the ignition coil, a fault flag signal by monitoring a discharge time of secondary current which flows on a secondary coil of the ignition coil, and generating, by a controller, a diagnostic trouble code (DTC) according to a duration of the fault flag signal.
    Type: Application
    Filed: May 4, 2022
    Publication date: February 16, 2023
    Inventor: Je Hyeon Um