Patents by Inventor Seung Ki Kong
Seung Ki Kong 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).
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Patent number: 10562521Abstract: 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: GrantFiled: October 3, 2017Date of Patent: February 18, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Sang Hyun Jeong, Seung Ki Kong, Seong Hwan Kim, Hak Sung Lee, Dae Won Yang, Gyeong Cheol Kim
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Patent number: 10351125Abstract: A method for stabilizing an engine clutch control includes transmitting an engine clutch operation start command from a controller to an engine clutch system, the engine clutch system including an engine clutch, detecting a hydraulic pressure generated during the operation of the engine clutch system, carrying out an oil leakage judgment mode using the controller to determine whether the hydraulic pressure is a normal hydraulic pressure where the operation of the engine clutch is available or if the hydraulic pressure an abnormal hydraulic pressure where the operation of the engine clutch is unavailable, and changing an operation mode to an emergency operation mode wherein the operation of the engine clutch is stopped in case of abnormal hydraulic pressure, and carrying out an operation mode change by operating the engine clutch in a case of normal hydraulic pressure, based on a control by the controller.Type: GrantFiled: October 4, 2016Date of Patent: July 16, 2019Assignees: HYUNDIA MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Jong-Hyun Kim, Seung-Ki Kong, Jae-Shin Yi, Hak-Sung Lee, Tae-Ho Kim, Yeon-Ho Kim
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Publication number: 20180099659Abstract: 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: ApplicationFiled: October 3, 2017Publication date: April 12, 2018Inventors: Sang Hyun Jeong, Seung Ki Kong, Seong Hwan Kim, Hak Sung Lee, Dae Won Yang, Gyeong Cheol Kim
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Publication number: 20170166199Abstract: A method for stabilizing an engine clutch control includes transmitting an engine clutch operation start command from a controller to an engine clutch system, the engine clutch system including an engine clutch, detecting a hydraulic pressure generated during the operation of the engine clutch system, carrying out an oil leakage judgment mode using the controller so as to judge whether the hydraulic pressure is a normal hydraulic pressure where the operation of the engine clutch is available or if the hydraulic pressure an abnormal hydraulic pressure where the operation of the engine clutch is unavailable, and changing an operation mode to an emergency operation mode wherein the operation of the engine clutch is stopped in case of abnormal hydraulic pressure, and carrying out an operation mode change by operating the engine clutch in a case of normal hydraulic pressure, based on a control by the controller.Type: ApplicationFiled: October 4, 2016Publication date: June 15, 2017Inventors: Jong-Hyun KIM, Seung-Ki KONG, Jae-Shin YI, Hak-Sung LEE, Tae-Ho KIM, Yeon-Ho KIM
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Patent number: 9109692Abstract: An oil pump control apparatus of a hybrid vehicle is provided that controls an oil pump according to a demand of an output torque and oil temperature. In particular, hydraulic line pressure is controlled by operating an oil pump at maximum power if a starting demand for a hybrid vehicle is detected. Viscosity is calculated as well to correspond to an oil temperature in an engine stop mode and a rotation speed of the oil pump is controlled at a low power. Additionally, viscosity is also calculated according to a variation of a line pressure in a driving mode and the rotation speed of the electric oil pump is controlled in either a low power, a middle power, and a high power state as well.Type: GrantFiled: May 1, 2014Date of Patent: August 18, 2015Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Sanghyun Jeong, Jong Hyun Kim, Seunghyun Yang, Sang Lok Song, Yeonho Kim, Jaeshin Yi, Haksung Lee, Seung Ki Kong
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Patent number: 9080665Abstract: A failsafe device for a vehicle is provided that includes a transmission of a vehicle and a controller configured to operate an oil supply unit and an emergency oil supply unit. The oil supply unit supplies oil to the transmission via a first oil channel and produces hydraulic pressure and the emergency oil supply unit supplies oil to the transmission via a second oil channel and produces the hydraulic pressure when an oil supply system fails.Type: GrantFiled: August 22, 2013Date of Patent: July 14, 2015Assignee: Hyundai Motor CompanyInventors: Byoung Hoon Choi, Dong Soo Shim, Jae Shin Yi, Seung Ki Kong, Hak Sung Lee
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Publication number: 20150019095Abstract: A 2-speed transmission clutch learning method for a hybrid electric vehicle may include detecting whether the 2-speed transmission clutch may be operated through an actuator by driving a motor, learning an open position, a slip position, and a lock-up position of the 2-speed transmission clutch by detecting the amount of driving current and the rotation speed of the motor for the operation of the 2-speed transmission clutch, and storing learning values of the open position, the slip position, and the lock-up position of the 2-speed transmission clutch into a memory area, and controlling the operation of the 2-speed transmission clutch by applying the learning values.Type: ApplicationFiled: December 31, 2013Publication date: January 15, 2015Applicants: Kia Motors Corporation, Hyundai Motor CompanyInventors: Seung Ki Kong, Ki Nam Kim, Sanghyun Jeong, Jaeshin Yi, Chulmin Ahn
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Patent number: 8900096Abstract: 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: GrantFiled: July 12, 2012Date of Patent: December 2, 2014Assignee: Hyundai Motor CompanyInventors: Sanghyun Jeong, Jong Hyun Kim, Youngchul Kim, Jang Mi Lee, SanLok Song, Seungjae Kang, Jaeshin Yi, Haksung Lee, Seung Ki Kong
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Publication number: 20140343808Abstract: A failsafe device for a vehicle is provided that includes a transmission of a vehicle and a controller configured to operate an oil supply unit and an emergency oil supply unit. The oil supply unit supplies oil to the transmission via a first oil channel and produces hydraulic pressure and the emergency oil supply unit supplies oil to the transmission via a second oil channel and produces the hydraulic pressure when an oil supply system fails.Type: ApplicationFiled: August 22, 2013Publication date: November 20, 2014Applicant: HYUNDAI MOTOR COMPANYInventors: Byoung Hoon Choi, Dong Soo Shim, Jae Shin Yi, Seung Ki Kong, Hak Sung Lee
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Publication number: 20140244087Abstract: The present invention relates to an oil pump control apparatus of a hybrid vehicle that controls an oil pump according to a demand of an output torque and oil temperature, and a method thereof. A oil pump control method includes controlling hydraulic line pressure by operating a oil pump at a maximum power if a starting demand for a hybrid vehicle is detected, calculating a viscosity to correspond to an oil temperature in an engine stop mode and controlling a rotation speed of the oil pump at a low power, and calculating a viscosity according to a variation of a line pressure in a driving mode and controlling the rotation speed of the electric oil pump in either a low power, a middle power, and a high power state.Type: ApplicationFiled: May 1, 2014Publication date: August 28, 2014Applicants: KIA MOTORS CORPORATION, HYUNDAI MOTOR COMPANYInventors: Sanghyun Jeong, Jong Hyun Kim, Seunghyun Yang, Sang Lok Song, Yeonho Kim, Jaeshin Yi, Haksung Lee, Seung Ki Kong
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Patent number: 8747074Abstract: An oil pump control apparatus of a hybrid vehicle is provided that controls an oil pump according to a demand of an output torque and oil temperature. In particular, hydraulic line pressure is controlled by operating an oil pump at maximum power if a starting demand for a hybrid vehicle is detected. Viscosity is calculated as well to correspond to an oil temperature in an engine stop mode and a rotation speed of the oil pump is controlled at a low power. Additionally, viscosity is also calculated according to a variation of a line pressure in a driving mode and the rotation speed of the electric oil pump is controlled in either a low power, a middle power, and a high power state as well.Type: GrantFiled: July 7, 2011Date of Patent: June 10, 2014Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Sanghyun Jeong, Jong Hyun Kim, Seunghyun Yang, Sang Lok Song, Yeonho Kim, Jaeshin Yi, Haksung Lee, Seung Ki Kong
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Publication number: 20130149170Abstract: 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: ApplicationFiled: July 5, 2012Publication date: June 13, 2013Applicants: Kia Motors Corporation, Hyundai Motor CompanyInventors: Sang Lok SONG, Sang Hyun Jeong, Hak Sung Lee, Seung Ki Kong
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Publication number: 20130150209Abstract: 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: ApplicationFiled: July 12, 2012Publication date: June 13, 2013Applicant: Hyundai Motor CompanyInventors: SANGHYUN JEONG, JONG HYUN KIM, YOUNGCHUL KIM, JANG MI LEE, SANGLOK SONG, SEUNGJAE KANG, JAESHIN YI, HAKSUNG LEE, SEUNG KI KONG
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Patent number: 8371823Abstract: 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: GrantFiled: July 9, 2010Date of Patent: February 12, 2013Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Hak Sung Lee, Seung Ki Kong, Jin Sook Lee, Jae Shin Yi, Yeon Ho Kim, Baek Yu Kim, Sang Hyun Jeong, Jong Hyun Kim
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Patent number: 8255111Abstract: A gravity sensor (G-sensor) circuit system including a microcontroller that determines whether there is a failure in the G-sensor and, if it is determined that there is a failure in the G-sensor, outputs a failure signal to a controller outside the PCB, or the controller outside the PCB communicates with the G-sensor to determine whether there is a failure in the G-sensor, thus performing the self-diagnosis. The gravity sensor (G-sensor) circuit system performs self-diagnosis, zero-offset, and digital output, thereby using a more accurate sensor signal, improving the vehicle stability, and increasing the control precision and accuracy.Type: GrantFiled: November 30, 2009Date of Patent: August 28, 2012Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Seung Ki Kong, Chun Gen Lim, Jeong Min Shim
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Publication number: 20120141297Abstract: The present invention relates to an oil pump control apparatus of a hybrid vehicle that controls an oil pump according to a demand of an output torque and oil temperature, and a method thereof. A oil pump control method includes controlling hydraulic line pressure by operating a oil pump at a maximum power if a starting demand for a hybrid vehicle is detected, calculating a viscosity to correspond to an oil temperature in an engine stop mode and controlling a rotation speed of the oil pump at a low power, and calculating a viscosity according to a variation of a line pressure in a driving mode and controlling the rotation speed of the electric oil pump in either a low power, a middle power, and a high power state.Type: ApplicationFiled: July 7, 2011Publication date: June 7, 2012Applicants: KIA MOTORS CORPORATION, HYUNDAI MOTOR COMPANYInventors: Sanghyun Jeong, Jong Hyun Kim, Seung Hyun Yang, Sang Lok Song, Yeonho Kim, Jaeshin Yi, Haksung Lee, Seung Ki Kong
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Patent number: 8186967Abstract: A fail-safe control method for an oil pump control unit of a hybrid vehicle directly connects an automatic transmission control unit and an oil pump control unit via a hard wire to control an oil pump driver in the event of a failure of the CAN communication line of the oil pump control. It enables the rotation speed of a motor of the electric oil pump to be controlled by a motor control unit (MCU) or a underdrive brake (UD_BRAKE) to be controlled in on/off mode or in slip mode by the automatic transmission control unit until a mechanical oil pump is driven, in the event of a failure of the oil pump control unit or the electric oil pump.Type: GrantFiled: September 25, 2009Date of Patent: May 29, 2012Assignees: Hyundai Motor Company, Kia Motors CorporationInventor: Seung Ki Kong
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Publication number: 20110135499Abstract: 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: ApplicationFiled: July 9, 2010Publication date: June 9, 2011Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Hak Sung Lee, Seung Ki Kong, Jin Sook Lee, Jae Shin Yi, Yeon Ho Kim, Baek Yu Kim, Sang Hyun Jeong, Jong Hyun Kim
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Publication number: 20110054733Abstract: A gravity sensor (G-sensor) circuit system including a microcontroller that determines whether there is a failure in the G-sensor and, if it is determined that there is a failure in the G-sensor, outputs a failure signal to a controller outside the PCB, or the controller outside the PCB communicates with the G-sensor to determine whether there is a failure in the G-sensor, thus performing the self-diagnosis. The gravity sensor (G-sensor) circuit system performs self-diagnosis, zero-offset, and digital output, thereby using a more accurate sensor signal, improving the vehicle stability, and increasing the control precision and accuracy.Type: ApplicationFiled: November 30, 2009Publication date: March 3, 2011Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Seung Ki Kong, Chun Gen Lim, Jeong Min Shim
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Publication number: 20100143156Abstract: A fail-safe control method for an oil pump control unit of a hybrid vehicle directly connects an automatic transmission control unit and an oil pump control unit via a hard wire to control an oil pump driver in the event of a failure of the CAN communication line of the oil pump control. It enables the rotation speed of a motor of the electric oil pump to be controlled by a motor control unit (MCU) or a underdrive brake (UD_BRAKE) to be controlled in on/off mode or in slip mode by the automatic transmission control unit until a mechanical oil pump is driven, in the event of a failure of the oil pump control unit or the electric oil pump.Type: ApplicationFiled: September 25, 2009Publication date: June 10, 2010Applicants: Hyundai Motor Company, Kia Motors CorporationInventor: Seung Ki Kong