Patents by Inventor Sang Mo Ryu

Sang Mo Ryu 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).

  • Shift control method and system of hybrid vehicle
    Patent number: 9174639
    Abstract: A shift control method and system of a hybrid vehicle that prevent engine clutch slip occurring when a transfer torque of engine clutch is greater than an allowable transfer torque under unfavorable driving conditions by controlling a shifting time, may include, (a) detecting an engine torque. (b) determining an input torque of an engine clutch based on the engine torque. (c) comparing the determined input torque and a predetermined allowable transfer torque of the engine clutch. (d) increasing a present shifting time by a predetermined value when the determined input torque is greater than the allowable transfer torque and applying the increased shifting time.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: November 3, 2015
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Sang Mo Ryu, Myunggyu Kim, Yeonho Kim
  • SHIFT CONTROL METHOD AND SYSTEM OF HYBRID VEHICLE
    Publication number: 20150051765
    Abstract: A shift control method and system of a hybrid vehicle that prevent engine clutch slip occurring when a transfer torque of engine clutch is greater than an allowable transfer torque under unfavorable driving conditions by controlling a shifting time, may include, (a) detecting an engine torque. (b) determining an input torque of an engine clutch based on the engine torque. (c) comparing the determined input torque and a predetermined allowable transfer torque of the engine clutch. (d) increasing a present shifting time by a predetermined value when the determined input torque is greater than the allowable transfer torque and applying the increased shifting time.
    Type: Application
    Filed: December 13, 2013
    Publication date: February 19, 2015
    Applicant: Hyundai Motor Company
    Inventors: Sang Mo Ryu, Myunggyu Kim, Yeonho Kim