Patents by Inventor Sanglok Song
Sanglok 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).
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Patent number: 10144415Abstract: A limp home mode drive method and system for a hybrid vehicle are provided. The method includes prohibiting an operation of an overdrive brake that is included in a transmission for the hybrid vehicle and is driven by an electric oil pump when the hybrid vehicle is being driven and the electric oil pump is not operated. A speed of the hybrid vehicle is then limited based on a heat value of a rotation driver included in the transmission and a torque of a drive motor driving the transmission is limited based on a temperature of the drive motor. A mechanical oil pump included in the hybrid vehicle is operated to enable limp home driving of the hybrid vehicle.Type: GrantFiled: September 8, 2016Date of Patent: December 4, 2018Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Gyeongcheol Kim, Haksung Lee, SangLok Song
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Patent number: 9925859Abstract: A control apparatus of a hybrid vehicle having an electric oil pump includes an engine clutch selectively engaging an engine and a drive motor; an automatic transmission changing a power generated from the engine by engagement and releasing of a friction element into a required torque depending on a speed; a hydraulic pressure sensor sensing an oil pressure supplied to the engine clutch; a temperature sensor sensing an oil temperature discharged from the electric oil pump; a hybrid control unit (HCU) controlling the electric oil pump to selectively engage the engine clutch depending on a driving state; and a transmission control unit (TCU) controlling the electric oil pump to supply transmission control pressure to the friction element. The electric oil pump includes an oil motor and a pump to supply the operating hydraulic pressure to the engine clutch and the friction element.Type: GrantFiled: July 13, 2016Date of Patent: March 27, 2018Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Sanglok Song, Haksung Lee, Yeonho Kim, Jaeshin Yi, June Ho Lee, Gyeongcheol Kim
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Publication number: 20170282910Abstract: A limp home mode drive method and system for a hybrid vehicle are provided. The method includes prohibiting an operation of an overdrive brake that is included in a transmission for the hybrid vehicle and is driven by an electric oil pump when the hybrid vehicle is being driven and the electric oil pump is not operated. A speed of the hybrid vehicle is then limited based on a heat value of a rotation driver included in the transmission and a torque of a drive motor driving the transmission is limited based on a temperature of the drive motor. A mechanical oil pump included in the hybrid vehicle is operated to enable limp home driving of the hybrid vehicle.Type: ApplicationFiled: September 8, 2016Publication date: October 5, 2017Inventors: Gyeongcheol Kim, Haksung Lee, SangLok Song
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Publication number: 20170166181Abstract: A control apparatus of a hybrid vehicle having an electric oil pump includes an engine clutch selectively engaging an engine and a drive motor; an automatic transmission changing a power generated from the engine by engagement and releasing of a friction element into a required torque depending on a speed; a hydraulic pressure sensor sensing an oil pressure supplied to the engine clutch; a temperature sensor sensing an oil temperature discharged from the electric oil pump; a hybrid control unit (HCU) controlling the electric oil pump to selectively engage the engine clutch depending on a driving state; and a transmission control unit (TCU) controlling the electric oil pump to supply transmission control pressure to the friction element. The electric oil pump includes an oil motor and a pump to supply the operating hydraulic pressure to the engine clutch and the friction element.Type: ApplicationFiled: July 13, 2016Publication date: June 15, 2017Inventors: Sanglok SONG, Haksung LEE, Yeonho KIM, Jaeshin YI, June Ho LEE, Gyeongcheol KIM
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Patent number: 9180863Abstract: An oil pump system and method of a hybrid vehicle stably supplies an operating hydraulic pressure to an automatic transmission using only an electric oil pump. The oil pump system of the hybrid vehicle, which supplies an operating hydraulic pressure to an automatic transmission of the hybrid vehicle, includes: an automatic transmission control unit controlling operation of the automatic transmission; an electric oil pump pumping oil to generate an operating hydraulic pressure which is to be supplied to the automatic transmission; and an oil pump control unit receiving information on a state of the automatic transmission from the automatic transmission control unit and controlling operation of the electric oil pump. The operating hydraulic pressure supplied to the automatic transmission may be generated solely through the electric oil pump which is electrically operated.Type: GrantFiled: December 10, 2013Date of Patent: November 10, 2015Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Haksung Lee, SangLok Song, Jang Mi Lee, Gyeongcheol Kim
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Patent number: 9168913Abstract: An oil pump system of a hybrid vehicle may include an electric oil pump which supplies operating hydraulic pressure to the transmission based on a speed command; a data detector which detects data for controlling the electric oil pump; and a controller which sets a driving mode of the electric oil pump based on the data detected by the data detector, determines a basic flow rate of the set driving mode, determines a final flow rate by compensating for the basic flow rate, and applies the speed command to the electric oil pump, in which the operating hydraulic pressure is supplied to the transmission only by the electric oil pump, and the speed command is determined based on target hydraulic pressure, an oil temperature, and the final flow rate.Type: GrantFiled: April 7, 2014Date of Patent: October 27, 2015Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Haksung Lee, SangLok Song, Ki Nam Kim, Seung Hyun Yang, Jong Ho Lee, Jong Hyun Kim, Jaeshin Yi, Jang Mi Lee
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Patent number: 9127667Abstract: A device for controlling fail-safe of a hybrid vehicle capable of providing fail-safe running by controlling drive of an electric oil pump with a generation voltage of a hybrid starter and generator (HSG) or a drive motor when a main relay may be cutoff due to failure of a high voltage component may include a method having determining whether the hybrid vehicle proceeds to a fail-safe mode due to a main relay opened by failure of a high voltage component during running of the hybrid vehicle or not, detecting a generation voltage of an HSG or a drive motor when the proceeding to the fail-safe mode may be determined, and generating oil pressure by controlling driving of an electric oil pump according to a generation amount of the HSG or the drive motor in running in the fail-safe mode or in a stop state.Type: GrantFiled: December 3, 2013Date of Patent: September 8, 2015Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Jang Mi Lee, SangLok Song, Haksung Lee, Gyeongcheol Kim
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Publication number: 20150019073Abstract: An oil pump system of a hybrid vehicle may include an electric oil pump which supplies operating hydraulic pressure to the transmission based on a speed command; a data detector which detects data for controlling the electric oil pump; and a controller which sets a driving mode of the electric oil pump based on the data detected by the data detector, determines a basic flow rate of the set driving mode, determines a final flow rate by compensating for the basic flow rate, and applies the speed command to the electric oil pump, in which the operating hydraulic pressure is supplied to the transmission only by the electric oil pump, and the speed command is determined based on target hydraulic pressure, an oil temperature, and the final flow rate.Type: ApplicationFiled: April 7, 2014Publication date: January 15, 2015Applicants: Kia Motors Corporation, Hyundai Motor CompanyInventors: Haksung Lee, SangLok Song, Ki Nam Kim, Seung Hyun Yang, Jong Ho Lee, Jong Hyun Kim, Jaeshin Yi, Jang Mi Lee
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Publication number: 20140371960Abstract: A device for controlling fail-safe of a hybrid vehicle capable of providing fail-safe running by controlling drive of an electric oil pump with a generation voltage of a hybrid starter and generator (HSG) or a drive motor when a main relay may be cutoff due to failure of a high voltage component may include a method having determining whether the hybrid vehicle proceeds to a fail-safe mode due to a main relay opened by failure of a high voltage component during running of the hybrid vehicle or not, detecting a generation voltage of an HSG or a drive motor when the proceeding to the fail-safe mode may be determined, and generating oil pressure by controlling driving of an electric oil pump according to a generation amount of the HSG or the drive motor in running in the fail-safe mode or in a stop state.Type: ApplicationFiled: December 3, 2013Publication date: December 18, 2014Applicants: Kia Motors Corporation, Hyundai Motor CompanyInventors: Jang Mi LEE, SangLok SONG, Haksung LEE, Gyeongcheol KIM
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Publication number: 20140365091Abstract: An oil pump system and method of a hybrid vehicle stably supplies an operating hydraulic pressure to an automatic transmission using only an electric oil pump. The oil pump system of the hybrid vehicle, which supplies an operating hydraulic pressure to an automatic transmission of the hybrid vehicle, includes: an automatic transmission control unit controlling operation of the automatic transmission; an electric oil pump pumping oil to generate an operating hydraulic pressure which is to be supplied to the automatic transmission; and an oil pump control unit receiving information on a state of the automatic transmission from the automatic transmission control unit and controlling operation of the electric oil pump. The operating hydraulic pressure supplied to the automatic transmission may be generated solely through the electric oil pump which is electrically operated.Type: ApplicationFiled: December 10, 2013Publication date: December 11, 2014Applicants: Kia Motors Corporation, Hyundai Motor CompanyInventors: Haksung LEE, SangLok SONG, Jang Mi LEE, Gyeongcheol KIM
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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: 8406962Abstract: A method for determining an operating state of elements of a transmission may include acquiring rotational speeds of both members constituting the elements, determining whether the rotational speeds of the members may be the same, and determining that the elements may be directly connected when the rotational speeds of the members may be the same, and that the elements may be disconnected or slip when the rotational speeds of the members may be different.Type: GrantFiled: June 23, 2011Date of Patent: March 26, 2013Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Youngchul Kim, Sanghyun Jeong, Jangmi Lee, Sanglok Song, Yeonho Kim, Jaeshin Yi, Haksung Lee, Seungki Kong
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Publication number: 20120116622Abstract: A method for determining an operating state of elements of a transmission may include acquiring rotational speeds of both members constituting the elements, determining whether the rotational speeds of the members may be the same, and determining that the elements may be directly connected when the rotational speeds of the members may be the same, and that the elements may be disconnected or slip when the rotational speeds of the members may be different.Type: ApplicationFiled: June 23, 2011Publication date: May 10, 2012Applicants: Kia Motors Corporation, Hyundai Motor CompanyInventors: Youngchul Kim, Sanghyun Jeong, Jangmi Lee, Sanglok Song, Yeonho Kim, Jaeshin Yi, Haksung Lee, Seungki Kong