Patents by Inventor Sang Hyun Jeong

Sang Hyun Jeong 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).

  • Patent number: 10562521
    Abstract: A method for controlling a hydraulic pressure refilling operation for an engine clutch of a vehicle includes determining whether the vehicle travels using power of a driving motor with an engine clutch maintained in a disengaged state, and upon determining that the vehicle travels using power of the driving motor with the engine clutch maintained in the disengaged state, determining whether loss of hydraulic pressure has occurred, and upon determining that loss of hydraulic pressure has occurred, controlling a hydraulic pressure refilling operation such that working fluid in a reservoir is supplied to the actuator with the engine clutch in an engaged state, and controlling the driving motor so that the driving motor outputs a compensated torque by compensating for an effect of a load torque, generated by a non-operating engine, on a torque of the driving motor.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: February 18, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sang Hyun Jeong, Seung Ki Kong, Seong Hwan Kim, Hak Sung Lee, Dae Won Yang, Gyeong Cheol Kim
  • Publication number: 20190367004
    Abstract: An electric oil pump system is provided to allow the cooling of an electric oil pump (EOP) and an oil pump controller (OPU) to be performed efficiently in the vehicle equipped with the electric oil pump. The system includes an electric oil pump in which a pumping part is operated by power of a motor to suction and direct pressurized oil. and an oil pump controller operates the electric oil pump. A water-cooled cooling apparatus cools the oil pump controller using coolant and an oil-cooled cooling apparatus cools the electric oil pump using oil. The coolant of the water-cooled cooling apparatus and the oil of the oil-cooled cooling apparatus pass through a heat exchanger and as the coolant and oil pass therethrough, heat exchange is achieved.
    Type: Application
    Filed: December 4, 2018
    Publication date: December 5, 2019
    Inventors: Gyeong Cheol Kim, Sang Hyun Jeong, Jong Hyun Kim, Hak Sung Lee, Seong Hwan Kim, Dae Won Yang, Seung Jae Kang
  • Publication number: 20190249763
    Abstract: A method and apparatus for controlling transmission oil temperature are provided. The transmission oil is heated using a motor coil of an electric oil pump (EOP) as a heater before a startup of a vehicle. The method includes applying a current to the motor coil of the EOP configured to operate a transmission of the vehicle to thus heat the transmission oil by heat generated from the motor coil.
    Type: Application
    Filed: November 9, 2018
    Publication date: August 15, 2019
    Inventors: Dae Won Yang, Hak-Sung Lee, Seong Hwan Kim, Sang Hyun Jeong, Gyeong Cheol Kim
  • Publication number: 20190078627
    Abstract: A system and method for controlling engine clutch slip for a hybrid vehicle, in which it is determined whether an engine clutch has entered a slip mode and lubrication of the engine clutch is easily achieved through an additional lubrication hydraulic pressure circuit whenever the engine clutch enters the slip mode, thereby achieving the engine clutch slip control in all shift ranges including low-speed and medium-speed ranges and maintaining the heat energy that is generated from the engine clutch at a predetermined level or lower.
    Type: Application
    Filed: November 21, 2017
    Publication date: March 14, 2019
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Young Chul Kim, Sang Hyun Jeong
  • Publication number: 20180099659
    Abstract: A method for controlling a hydraulic pressure refilling operation for an engine clutch of a vehicle includes determining whether the vehicle travels using power of a driving motor with an engine clutch maintained in a disengaged state, and upon determining that the vehicle travels using power of the driving motor with the engine clutch maintained in the disengaged state, determining whether loss of hydraulic pressure has occurred, and upon determining that loss of hydraulic pressure has occurred, controlling a hydraulic pressure refilling operation such that working fluid in a reservoir is supplied to the actuator with the engine clutch in an engaged state, and controlling the driving motor so that the driving motor outputs a compensated torque by compensating for an effect of a load torque, generated by a non-operating engine, on a torque of the driving motor.
    Type: Application
    Filed: October 3, 2017
    Publication date: April 12, 2018
    Inventors: Sang Hyun Jeong, Seung Ki Kong, Seong Hwan Kim, Hak Sung Lee, Dae Won Yang, Gyeong Cheol Kim
  • Patent number: 9845094
    Abstract: A method for controlling a line pressure of a hybrid vehicle includes applying, by a controller, a set current corresponding to a target pressure to a first solenoid valve controlling the line pressure, driving, by the controller, a second solenoid valve to open an engine clutch after the applying step, comparing, by the controller, a difference value between a real pressure of the engine clutch sensed by a pressure sensor and the target pressure with a preset pressure after the driving step, and as a result of performing the comparing step, if the difference value is equal to or greater than the preset pressure, controlling, by the controller, an increase of a revolution per minute (RPM) speed of the electric oil pump and an increase of a pressure of the first solenoid valve to be alternately generated.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: December 19, 2017
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Young Chul Kim, Jong Hyun Kim, June Ho Lee, Sang Hyun Jeong
  • Publication number: 20170259824
    Abstract: A method for controlling a line pressure of a hybrid vehicle includes applying, by a controller, a set current corresponding to a target pressure to a first solenoid valve controlling the line pressure, driving, by the controller, a second solenoid valve to open an engine clutch after the applying step, comparing, by the controller, a difference value between a real pressure of the engine clutch sensed by a pressure sensor and the target pressure with a preset pressure after the driving step, and as a result of performing the comparing step, if the difference value is equal to or greater than the preset pressure, controlling, by the controller, an increase of a revolution per minute (RPM) speed of the electric oil pump and an increase of a pressure of the first solenoid valve to be alternately generated.
    Type: Application
    Filed: July 29, 2016
    Publication date: September 14, 2017
    Inventors: Young Chul KIM, Jong Hyun KIM, June Ho LEE, Sang Hyun JEONG
  • Publication number: 20160259427
    Abstract: A foldable input device is described. In one or more implementations, an input device includes a first housing having a first collection of sensors configured to generate inputs responsive to user interaction and a second housing having a second collection of sensors configured to generate inputs responsive to user interaction. The input device also includes a wireless communication device configured to communicate the generated inputs to a computing device that are usable to initiate one or more operations of the computing device and a flexible hinge securing the first and second housings to each other and configured to permit rotational movement of the first and second housings in relation to each other.
    Type: Application
    Filed: October 30, 2014
    Publication date: September 8, 2016
    Inventors: Wei Zheng, Sang Hyun Jeong, Sheau Jiun Yang, Nicolas J.C. Schmitt, Dhaval Jitendra Joshi, Yujian Peng
  • Patent number: 9322305
    Abstract: A system and method of controlling an automotive electric oil pump are provided. The method of controlling an oil pump can minimize power consumption of a vehicle and improve the fuel efficiency accordingly by learning the performance of the electric oil pump and operating the electric oil pump based on performance.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: April 26, 2016
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Hak Sung Lee, Sang Hyun Jeong, Sang Lok Song, Jae Shin Yi, Yoh Han Kim, Jong Ho Lee
  • Publication number: 20160084125
    Abstract: A system and method of controlling an automotive electric oil pump are provided. The method of controlling an oil pump can minimize power consumption of a vehicle and improve the fuel efficiency accordingly by learning the performance of the electric oil pump and operating the electric oil pump based on performance.
    Type: Application
    Filed: November 25, 2014
    Publication date: March 24, 2016
    Inventors: Hak Sung Lee, Sang Hyun Jeong, Sang Lok Song, Jae Shin Yi, Yoh Han Kim, Jong Ho Lee
  • Patent number: 8852045
    Abstract: An electric oil pump system and a control method thereof include an electrical oil pump that is derated or the derating of the electrical oil pump is released according to a coil temperature of the electrical oil pump, and a torque of a transmission is control according to whether or not the electrical oil pump is derated.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: October 7, 2014
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Seung Jae Kang, Sang Hyun Jeong, Jong Hyun Kim, Hak Sung Lee
  • Publication number: 20140187382
    Abstract: An electric oil pump system and a control method thereof include an electrical oil pump that is derated or the derating of the electrical oil pump is released according to a coil temperature of the electrical oil pump, and a torque of a transmission is control according to whether or not the electrical oil pump is derated.
    Type: Application
    Filed: March 18, 2013
    Publication date: July 3, 2014
    Applicants: Kia Motors Corporation, Hyundai Motor Company
    Inventors: Seung Jae Kang, Sang Hyun JEONG, Jong Hyun KIM, Hak Sung LEE
  • Publication number: 20130149170
    Abstract: A method of controlling an electric oil pump in a hybrid vehicle controls, at an ultra-low temperature, the electric oil pump so that the number of revolutions thereof is not unnecessarily increased, so as to prevent unnecessary power consumption of the battery, thereby contributing to an increase in fuel efficiency, to prevent unnecessary noise, thereby improving the market quality of the vehicle, and to improve the endurance of the electric oil pump.
    Type: Application
    Filed: July 5, 2012
    Publication date: June 13, 2013
    Applicants: Kia Motors Corporation, Hyundai Motor Company
    Inventors: Sang Lok SONG, Sang Hyun Jeong, Hak Sung Lee, Seung Ki Kong
  • Patent number: 8371823
    Abstract: The present invention provides an apparatus and method for controlling the operation of an electric oil pump for creating a working fluid pressure in a transmission and a clutch for a hybrid vehicle, which can accurately reflect the viscosity characteristics of oil to accurately control the operation of the pump, instead of measuring the temperature of the oil to reflect the state of the oil. In preferred embodiments, the present invention provides an apparatus for controlling the operation of an electric oil pump, the apparatus including: a current detector for detecting a current applied to a motor of an electric oil pump; a rotational speed detector for detecting a rotational speed of the motor; and a controller for calculating a load torque of the motor based on the detection values of the current detector and the rotational speed detector, calculating a target rotational speed based on the detection values, and controlling the operation of the motor based on the target rotational speed.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: February 12, 2013
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Hak Sung Lee, Seung Ki Kong, Jin Sook Lee, Jae Shin Yi, Yeon Ho Kim, Baek Yu Kim, Sang Hyun Jeong, Jong Hyun Kim
  • Publication number: 20110135499
    Abstract: The present invention provides an apparatus and method for controlling the operation of an electric oil pump for creating a working fluid pressure in a transmission and a clutch for a hybrid vehicle, which can accurately reflect the viscosity characteristics of oil to accurately control the operation of the pump, instead of measuring the temperature of the oil to reflect the state of the oil. In preferred embodiments, the present invention provides an apparatus for controlling the operation of an electric oil pump, the apparatus including: a current detector for detecting a current applied to a motor of an electric oil pump; a rotational speed detector for detecting a rotational speed of the motor; and a controller for calculating a load torque of the motor based on the detection values of the current detector and the rotational speed detector, calculating a target rotational speed based on the detection values, and controlling the operation of the motor based on the target rotational speed.
    Type: Application
    Filed: July 9, 2010
    Publication date: June 9, 2011
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Hak Sung Lee, Seung Ki Kong, Jin Sook Lee, Jae Shin Yi, Yeon Ho Kim, Baek Yu Kim, Sang Hyun Jeong, Jong Hyun Kim
  • Patent number: D725111
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: March 24, 2015
    Assignee: Microsoft Corporation
    Inventors: Sang Hyun Jeong, Michael Zheng
  • Patent number: D738884
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: September 15, 2015
    Assignee: Microsoft Corporation
    Inventors: Michael Zheng, Sang Hyun Jeong
  • Patent number: D750081
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: February 23, 2016
    Assignee: Microsoft Corporation
    Inventors: Sang Hyun Jeong, Wei Zheng, Sheau Jiun Yang
  • Patent number: D750095
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: February 23, 2016
    Assignee: Microsoft Corporation
    Inventors: Sang Hyun Jeong, Michael Zheng, Jiun Yang
  • Patent number: D807359
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: January 9, 2018
    Assignee: Microsoft Corporation
    Inventors: Sang Hyun Jeong, Michael Zheng