Patents by Inventor SanLok Song

SanLok Song 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 diagnosing and controlling an unusual hydraulic state of hybrid vehicle transmission
    Patent number: 8900096
    Abstract: A system and method for diagnosing and controlling an unusual hydraulic state of an electric variable transmission of a hybrid vehicle achieving multi modes including a first mode and a second mode, the method may include determining whether the first mode is converted into the second mode, determining whether a hydraulic pressure is generated in a clutch which is engaged and the generated hydraulic pressure is higher than a predetermined hydraulic pressure when the first mode is converted into the second mode, and determining that the hybrid vehicle is in an unusual condition if the hydraulic pressure is not generated in the clutch or the generated hydraulic pressure is higher than the predetermined hydraulic pressure.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: December 2, 2014
    Assignee: Hyundai Motor Company
    Inventors: Sanghyun Jeong, Jong Hyun Kim, Youngchul Kim, Jang Mi Lee, SanLok Song, Seungjae Kang, Jaeshin Yi, Haksung Lee, Seung Ki Kong