Patents by Inventor Hong-Seok Song
Hong-Seok 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: 11964925Abstract: Provided is a method for preparing an oligomer including: supplying a monomer stream and a solvent stream to a reactor to perform an oligomerization reaction to prepare a reaction product; supplying a discharge stream from the reactor including the reaction product to a separation device and supplying a lower discharge stream from the separation device to a settling tank; adding an organic flocculant to the settling tank to settle and remove a polymer and supplying the lower discharge stream from the separation device from which the polymer is removed to a high boiling point separation column; and removing a high boiling point material from the lower portion in the high boiling point separation column and supplying an upper discharge stream including an oligomer to a solvent separation column.Type: GrantFiled: January 10, 2022Date of Patent: April 23, 2024Assignee: LG Chem, Ltd.Inventors: Kyung Seog Youk, Jong Hun Song, Min Ho Sun, Hong Min Lee, Hyun Seok Kim, Moon Sub Hwang, Jeong Seok Lee
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Patent number: 11938457Abstract: The present disclosure relates to an apparatus for preparing an oligomer, the apparatus including: a reactor for oligomerizing a feed stream containing a fed monomer; a stirrer inserted into a hole formed in an upper portion of the reactor; and a solvent transfer line extending inward from a side of the reactor, wherein the stirrer includes a rotating shaft vertically extending downward from the upper portion of the reactor, and a blade having a conical shape whose vertex is positioned at a lower end of the rotating shaft and outer diameter increases from a bottom toward a top, and the solvent transfer line has a plurality of spray nozzles formed in a direction toward the blade.Type: GrantFiled: November 13, 2020Date of Patent: March 26, 2024Assignee: LG Chem, Ltd.Inventors: Hong Min Lee, Jeong Seok Lee, Jong Hun Song, Kyung Seog Youk, Dong Kwon Lee, Moon Sub Hwang
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Patent number: 11939278Abstract: Provided is a method of producing an oligomer, the method including: supplying a monomer stream and a solvent stream to a reactor to perform an oligomerization reaction to produce a reaction product; supplying a discharge stream of the reactor to a separation device, and supplying an upper discharge stream of the separation device including an unreacted monomer to the reactor and supplying a lower discharge stream of the separation device to a settling tank; settling a polymer in the settling tank and removing the polymer, and supplying the lower discharge stream of the separation device from which the polymer is removed to a high-boiling point separation column; removing a high-boiling point material from a lower discharge stream of the high-boiling point separation column and supplying an upper discharge stream of the high-boiling point separation column including an oligomer to a solvent separation column; and separating a solvent and the oligomer in the solvent separation column.Type: GrantFiled: September 6, 2021Date of Patent: March 26, 2024Assignee: LG Chem, Ltd.Inventors: Kyung Seog Youk, Min Ho Sun, Jong Hun Song, Hong Min Lee, Moon Sub Hwang, Jeong Seok Lee
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Patent number: 11921273Abstract: Provided are a pulse compressor and a two-photon excited fluorescence microscope. The microscope includes a light source which generates a laser beam having a pulse, a pulse compressor which compresses the pulse of the laser beam, an objective lens which provides the laser beam to a specimen, and image sensors which receive the laser beam and obtain images of the specimen. The pulse compressor may include a grating plate, a corner cube provided on one side of the grating plate, and a retroreflector provided on the other side of the grating plate.Type: GrantFiled: August 30, 2021Date of Patent: March 5, 2024Assignee: Electronics and Telecommunications Research InstituteInventors: Sang Kyun Lee, Dong Hoon Song, Hong-Seok Seo, Chul Huh
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Patent number: 10906408Abstract: The present invention provides a method for controlling a charging voltage of a 12V auxiliary battery for a hybrid vehicle, which can (1) improve charging efficiency of an auxiliary battery by increasing the output voltage of a DC-DC converter during cold start when the outside air temperature is low, (2) improve the charging efficiency of the auxiliary battery by increasing or decreasing the output power of the DC-DC converter according to the state of charge of the auxiliary battery and by increasing the output voltage of the DC-DC converter when many electrical loads are turned on, and (3) allow the DC-DC converter to provide continuous power supply for charging the auxiliary battery by turning on a main switch disposed between a high voltage battery and the DC-DC converter based on a reverse power conversion operation of the DC-DC converter even in the case where the voltage of the auxiliary battery falls below 9V.Type: GrantFiled: November 18, 2019Date of Patent: February 2, 2021Assignees: Hyundai Motor Company, Kia Motors CorporationInventor: Hong-seok Song
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Patent number: 10611256Abstract: The present invention provides a method for controlling a charging voltage of a 12V auxiliary battery for a hybrid vehicle, which can (1) improve charging efficiency of an auxiliary battery by increasing the output voltage of a DC-DC converter during cold start when the outside air temperature is low, (2) improve the charging efficiency of the auxiliary battery by increasing or decreasing the output power of the DC-DC converter according to the state of charge of the auxiliary battery and by increasing the output voltage of the DC-DC converter when many electrical loads are turned on, and (3) allow the DC-DC converter to provide continuous power supply for charging the auxiliary battery by turning on a main switch disposed between a high voltage battery and the DC-DC converter based on a reverse power conversion operation of the DC-DC converter even in the case where the voltage of the auxiliary battery falls below 9V.Type: GrantFiled: December 2, 2014Date of Patent: April 7, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventor: Hong Seok Song
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Publication number: 20200079231Abstract: The present invention provides a method for controlling a charging voltage of a 12V auxiliary battery for a hybrid vehicle, which can (1) improve charging efficiency of an auxiliary battery by increasing the output voltage of a DC-DC converter during cold start when the outside air temperature is low, (2) improve the charging efficiency of the auxiliary battery by increasing or decreasing the output power of the DC-DC converter according to the state of charge of the auxiliary battery and by increasing the output voltage of the DC-DC converter when many electrical loads are turned on, and (3) allow the DC-DC converter to provide continuous power supply for charging the auxiliary battery by turning on a main switch disposed between a high voltage battery and the DC-DC converter based on a reverse power conversion operation of the DC-DC converter even in the case where the voltage of the auxiliary battery falls below 9V.Type: ApplicationFiled: November 18, 2019Publication date: March 12, 2020Inventor: Hong-seok Song
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Patent number: 10414276Abstract: A system for recharging a hybrid vehicle is provided with two motors and supplies commercial electricity to neutral points of the motors when a connection of a recharging stand is detected, forms an electricity loop through the neutral points of the first motor and the second motor according to a phase of the commercial electricity, and carries out a recharging mode by detecting at least a voltage of a DC link capacitor in a voltage converter, a voltage of a smoothing capacitor, and a battery voltage. According to the system, a current control value or a voltage control value is selected according to the recharging mode in order to recharge a battery based on the current control value or the voltage control value.Type: GrantFiled: May 15, 2017Date of Patent: September 17, 2019Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Hong-seok Song, Ki-young Jang, Junghong Joo
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Publication number: 20170246958Abstract: A system for recharging a hybrid vehicle is provided with two motors and supplies commercial electricity to neutral points of the motors when a connection of a recharging stand is detected, forms an electricity loop through the neutral points of the first motor and the second motor according to a phase of the commercial electricity, and carries out a recharging mode by detecting at least a voltage of a DC link capacitor in a voltage converter, a voltage of a smoothing capacitor, and a battery voltage. According to the system, a current control value or a voltage control value is selected according to the recharging mode in order to recharge a battery based on the current control value or the voltage control value.Type: ApplicationFiled: May 15, 2017Publication date: August 31, 2017Inventors: Hong-seok Song, Ki-young Jang, Junghong Joo
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Patent number: 9649943Abstract: A system for recharging a hybrid vehicle is provided with two motors and supplies commercial electricity to neutral points of the motors when a connection of a recharging stand is detected, forms an electricity loop through the neutral points of the first motor and the second motor according to a phase of the commercial electricity, and carries out a recharging mode by detecting at least a voltage of a DC link capacitor in a voltage converter, a voltage of a smoothing capacitor, and a battery voltage. According to the system, a current control value or a voltage control value is selected according to the recharging mode in order to recharge a battery based on the current control value or the voltage control value.Type: GrantFiled: November 12, 2014Date of Patent: May 16, 2017Assignee: Hyundai Motor CompanyInventors: Hong-seok Song, Ki-young Jang, Junghong Joo
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Publication number: 20150197156Abstract: A system for recharging a hybrid vehicle is provided with two motors and supplies commercial electricity to neutral points of the motors when a connection of a recharging stand is detected, forms an electricity loop through the neutral points of the first motor and the second motor according to a phase of the commercial electricity, and carries out a recharging mode by detecting at least a voltage of a DC link capacitor in a voltage converter, a voltage of a smoothing capacitor, and a battery voltage. According to the system, a current control value or a voltage control value is selected according to the recharging mode in order to recharge a battery based on the current control value or the voltage control value.Type: ApplicationFiled: November 12, 2014Publication date: July 16, 2015Inventors: Hong-seok Song, Ki-young Jang, Junghong Joo
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Publication number: 20150084409Abstract: The present invention provides a method for controlling a charging voltage of a 12V auxiliary battery for a hybrid vehicle, which can (1) improve charging efficiency of an auxiliary battery by increasing the output voltage of a DC-DC converter during cold start when the outside air temperature is low, (2) improve the charging efficiency of the auxiliary battery by increasing or decreasing the output power of the DC-DC converter according to the state of charge of the auxiliary battery and by increasing the output voltage of the DC-DC converter when many electrical loads are turned on, and (3) allow the DC-DC converter to provide continuous power supply for charging the auxiliary battery by turning on a main switch disposed between a high voltage battery and the DC-DC converter based on a reverse power conversion operation of the DC-DC converter even in the case where the voltage of the auxiliary battery falls below 9V.Type: ApplicationFiled: December 2, 2014Publication date: March 26, 2015Inventor: Hong Seok Song
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Patent number: 8928272Abstract: The present invention provides a method for controlling a charging voltage of a 12V auxiliary battery for a hybrid vehicle, which can (1) improve charging efficiency of an auxiliary battery by increasing the output voltage of a DC-DC converter during cold start when the outside air temperature is low, (2) improve the charging efficiency of the auxiliary battery by increasing or decreasing the output power of the DC-DC converter according to the state of charge of the auxiliary battery and by increasing the output voltage of the DC-DC converter when many electrical loads are turned on, and (3) allow the DC-DC converter to provide continuous power supply for charging the auxiliary battery by turning on a main switch disposed between a high voltage battery and the DC-DC converter based on a reverse power conversion operation of the DC-DC converter even in the case where the voltage of the auxiliary battery falls below 9V.Type: GrantFiled: November 8, 2010Date of Patent: January 6, 2015Assignees: Hyundai Motor Company, Kia Motors CorporationInventor: Hong Seok Song
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Patent number: 8901882Abstract: A system for recharging a hybrid vehicle is provided with two motors and supplies commercial electricity to neutral points of the motors when a connection of a recharging stand is detected, forms an electricity loop through the neutral points of the first motor and the second motor according to a phase of the commercial electricity, and carries out a recharging mode by detecting at least a voltage of a DC link capacitor in a voltage converter, a voltage of a smoothing capacitor, and a battery voltage. According to the system, a current control value or a voltage control value is selected according to the recharging mode in order to recharge a battery based on the current control value or the voltage control value.Type: GrantFiled: December 1, 2010Date of Patent: December 2, 2014Assignee: Hyundai Motor CompanyInventors: Hong Seok Song, Ki Young Jang, Jung Hong Joo
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Patent number: 8872473Abstract: A system for recharging a battery in a hybrid vehicle provided with two motor is provided. If connection of a recharging connector (recharging stand) is detected, an initial activation of a controller is performed, and a DC link is pre-recharged. If the DC link is pre-recharged to a voltage higher than or equal to a predetermined voltage, an exterior AC or DC electricity is supplied to the battery so as to recharge the battery according to the present invention.Type: GrantFiled: December 6, 2010Date of Patent: October 28, 2014Assignee: Hyundai Motor CompanyInventors: Hong Seok Song, Ki Young Jang
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Patent number: 8508067Abstract: The present invention provides a motor drive system for a hybrid vehicle and a method for controlling the same in the event of a failure in a voltage converter, in which high voltage stored in a DC-link capacitor is discharged to a 12V electrical load through a DC-DC converter, of which the output voltage is increased.Type: GrantFiled: June 9, 2010Date of Patent: August 13, 2013Assignee: Hyundai Motor CompanyInventors: Hong Seok Song, Ki Jong Lee, Ki Young Jang, Shin Hye Chun, Won Kyoung Choi, Hyong Joon Park, Jin Hwan Jung, Jung Hong Joo
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Patent number: 8441229Abstract: A system for recharging a plug-in hybrid vehicle and a control method are provided to recharge a battery with exterior AC electricity plugged in. The system includes a motor operated as an electric motor or a generator, a battery in which DC voltage is stored, an inverter disposed between the motor and the battery, a plugged in exterior AC electric power source supplying electrical energy, a single phase inductor disposed between the inverter and the AC electric power source, a switch which electrically connects or disconnects the motor, a current sensor that detects current value supplying to the motor, and a controller which controls the switch to disconnect electric connection between the inductor and the motor and controls the inverter not to supply current to the phase which is not connected to the inductor when the AC electric power source is plugged in.Type: GrantFiled: November 23, 2010Date of Patent: May 14, 2013Assignee: Hyundai Motor CompanyInventors: Jeong Yun Lee, Hong Seok Song, In Pil Yoo, Ki Young Jang, Sangcheol Shin, Jung Hong Joo
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Patent number: 8380377Abstract: A method for controlling a cooling system for controlling a power converter of a hybrid electric vehicle includes: estimating the temperature of a power converter at the time of a CAN communication error as a current temperature of the power converter and controlling a cooling system at a cooling rate based on the estimated temperature; and controlling the cooling rate of the cooling system depending on whether an output of the power converter is greater than a reference value. According to the method, the cooling system can be more effectively controlled.Type: GrantFiled: March 24, 2010Date of Patent: February 19, 2013Assignee: Hyundai Motor CompanyInventors: Jong Kyung Lim, Byeong Seob Song, Hong Seok Song, Ki Jong Lee, Shin Hye Chun, Won Kyoung Choi, Hyong Joon Park, Joon Hwan Kim
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Publication number: 20120049803Abstract: A system for recharging a plug-in hybrid vehicle and a control method are provided to recharge a battery with exterior AC electricity plugged in. The system includes a motor operated as an electric motor or a generator, a battery in which DC voltage is stored, an inverter disposed between the motor and the battery, a plugged in exterior AC electric power source supplying electrical energy, a single phase inductor disposed between the inverter and the AC electric power source, a switch which electrically connects or disconnects the motor, a current sensor that detects current value supplying to the motor, and a controller which controls the switch to disconnect electric connection between the inductor and the motor and controls the inverter not to supply current to the phase which is not connected to the inductor when the AC electric power source is plugged in.Type: ApplicationFiled: November 23, 2010Publication date: March 1, 2012Applicant: HYUNDAI MOTOR COMPANYInventors: Jeong Yun Lee, Hong Seok Song, In Pil Yoo, Ki Young Jang, Sangcheol Shin, Jung Hong Joo
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Publication number: 20120007551Abstract: A system for recharging a hybrid vehicle is provided with two motors and supplies commercial electricity to neutral points of the motors when a connection of a recharging stand is detected, forms an electricity loop through the neutral points of the first motor and the second motor according to a phase of the commercial electricity, and carries out a recharging mode by detecting at least a voltage of a DC link capacitor in a voltage converter, a voltage of a smoothing capacitor, and a battery voltage. According to the system, a current control value or a voltage control value is selected according to the recharging mode in order to recharge a battery based on the current control value or the voltage control value.Type: ApplicationFiled: December 1, 2010Publication date: January 12, 2012Applicant: HYUNDAI MOTOR COMPANYInventors: Hong Seok Song, Ki Young Jang, Jung Hong Joo