Patents by Inventor Jung Myung KWAK
Jung Myung KWAK 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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Publication number: 20240123790Abstract: A thermal management system, a method of controlling the same, a compressor included in the same in which the thermal management system and the method of controlling the thermal management system determine whether the current state is a low-refrigerant state in which a refrigerant amount is smaller than a reference refrigerant amount on the basis of a degree of superheat or a degree of supercooling detected from a pressure and temperature of a refrigerant when a battery thermal management mode is operated and operations of cooling and heating a vehicle interior do not operate. The compressor is included in the thermal management system and configured as an electric compressor configured to be controlled by the control method. Therefore, it is possible to easily recognize whether the current state is the low-refrigerant state in which the refrigerant amount is smaller than the reference refrigerant amount.Type: ApplicationFiled: March 22, 2022Publication date: April 18, 2024Inventors: Jung Myung Kwak, Yong Hee Kim
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Patent number: 11914001Abstract: A power control device configured for diagnosing an open-circuit fault occurring in a power system of an autonomous vehicle and an open-circuit diagnosis method thereof, may include a power control switch that selectively connects or separates main power output from the first power supply and auxiliary power output from the second power supply, and a processor that determines a possibility of an open-circuit fault of a vehicle power source based on a current flowing through the power control switch and determines whether it is possible to drive an electric load with an output power of the second power supply alone and determine an open-circuit position based on an output of the first power supply when there is the possibility of the open-circuit fault.Type: GrantFiled: April 27, 2021Date of Patent: February 27, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, YURA CORPORATION CO., LTD.Inventors: Soon Myung Kwon, Jung Hyeon Bae, Hyo Geun Kwak, Sae Rom Kim, Jeong Hyun Park, Young Hoo Yoon
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Publication number: 20230035718Abstract: A method for controlling a swash plate compressor and a swash plate compressor capable of preventing an overload by reducing an inclination angle of the swash plate if the torque calculated using compressor information is overloaded. Disclosed is a method for controlling a swash plate compressor including: a measuring step for measuring a compressor operation information of a swash plate compressor; a torque calculating step for calculating a calculated torque value of the swash plate compressor based on the compressor operation information; an overload determining step for determining whether an overload occurred or not by comparing the calculated torque value calculated in the torque calculating step with a torque set value; and an overload preventing step for preventing an overload by reducing an inclination angle of the swash plate of the swash plate compressor if the overload determining step determines that an overload occurred.Type: ApplicationFiled: February 15, 2021Publication date: February 2, 2023Inventors: Jung Myung Kwak, Yong Hee Kim
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Patent number: 11143174Abstract: A compressor that includes a casing, a compression mechanism provided inside the casing to compress a refrigerant, a rotary shaft transmitting a rotational force to the compression mechanism from a drive source provided outside the casing, a clutch connecting the drive source and the rotary shaft by a magnetic force generated when electric power is applied to the clutch and disconnecting the drive source and the rotary shaft by losing the magnetic force when the electric power applied thereto is cut off, and a rotation measurement means for receiving the magnetic force from the clutch to measure a change in magnetic flux according to the rotation of the rotary shaft and measure a rotational speed of the rotary shaft. Thus, it is possible to measure the rotational speed of the rotary shaft without including a permanent magnet.Type: GrantFiled: March 21, 2018Date of Patent: October 12, 2021Assignee: Hanon SystemsInventors: Chan Ho Baek, Jung Myung Kwak, Sang Dong Min, Kyung Jae Lee
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Patent number: 11053795Abstract: A compressor having a front housing in which a crank chamber is formed. A cylinder block is coupled to an opposite surface facing the front housing and includes reciprocating pistons in a plurality of cylinder bores. A rear housing is coupled to an opposite surface facing the cylinder block, the rear housing includes a suction chamber and a discharge chamber formed therein. A rotating shaft 400 is inserted via centers of the front housing and the cylinder block, the shaft inserted into a swash plate. A diameter maintenance part is configured to constantly maintain a diameter based on an axis direction of the piston 220. A sensor part is configured to sense a speed and a stroke of the piston in accordance with a change in position of a position determination part positioned on one side of the diameter maintenance part.Type: GrantFiled: February 27, 2020Date of Patent: July 6, 2021Assignees: TE CONNECTIVITY GERMANY GMBH, HANON SYSTEMSInventors: Jung Myung Kwak, Yong Hee Kim, Daniel Domke, Simon Schemer, Peter Kurt Zawadzky
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Patent number: 11035358Abstract: A variable displacement reciprocating piston unit includes a sensor probe, a target, a piston having a top dead center position and a bottom dead center position, and a signal processing unit. The sensor probe, the target, and the piston are located in relation to each other so that the target is moved from being absent from the sensor probe to being present at the sensor probe when the piston travels towards the top dead center position, and the target is moved from being present at the sensor probe to being absent from the sensor probe when the piston travels towards the bottom dead center position. The signal processing unit generates a signal indicating a stroke speed and a stroke length of the piston from a signal from the sensor probe indicating a presence and/or an absence of the target as the target moves relative to the sensor probe.Type: GrantFiled: February 27, 2020Date of Patent: June 15, 2021Assignees: TE CONNECTIVITY GERMANY GMBH, HANON SYSTEMSInventors: Jung Myung Kwak, Yong-Hee Kim
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Publication number: 20210033080Abstract: A control device of a compressor includes a piston which reciprocates by a swash plate, a crankcase receiving the swash plate mounted such that an inclination angle thereof is variable, a discharge chamber from which a compressed working fluid is discharged, a suction chamber sucking the working fluid to be compressed, a first communication channel connecting the suction chamber and the crankcase, a second communication channel connecting the discharge chamber and the crankcase, and a control valve which selectively opens and closes the first communication channel and the second communication channel. The control device includes a suction pressure sensor measuring a pressure of the suction chamber, a valve control unit determining a target suction pressure on the basis of the value measured by the suction pressure sensor and a set temperature, and a valve driving unit controlling the opening degree of the control valve to achieve the target suction pressure.Type: ApplicationFiled: January 18, 2019Publication date: February 4, 2021Inventors: Jung Myung Kwak, Yong Hee Kim, Daniel Domke, Simon Scherner, Peter Zawadzky
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Publication number: 20200340464Abstract: A compressor control module (CCM) controls an output of a variable displacement swash plate compressor. The CCM directly calculates, or receives from an external source, a signal indicating a desired or required output from the compressor, receives a current value of the desired or required output, and receives or calculates a current rotation speed and angle, with respect to a rotation axis, of a swash plate, or a current piston stroke length and a reciprocating frequency of the compressor. The CCM determines a difference between the desired or required output from the compressor and the current value and outputs a signal to a valve driving unit which will adjust an angle of a swash plate such that the actual value becomes closer to, or the same as, the desired or required output, taking into account the additional values received or calculated in the receives or calculates step.Type: ApplicationFiled: April 24, 2020Publication date: October 29, 2020Applicants: TE Connectivity Germany GmbH, Hanon SystemsInventors: Simon Scherner, Peter Kurt Zawadzky, Daniel Domke, Jung-Myung Kwak, Yong-Hee Kim
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Publication number: 20200277945Abstract: A compressor having a front housing in which a crank chamber is formed. A cylinder block is coupled to an opposite surface facing the front housing and includes reciprocating pistons in a plurality of cylinder bores. A rear housing is coupled to an opposite surface facing the cylinder block, the rear housing includes a suction chamber and a discharge chamber formed therein. A rotating shaft 400 is inserted via centers of the front housing and the cylinder block, the shaft inserted into a swash plate. A diameter maintenance part is configured to constantly maintain a diameter based on an axis direction of the piston 220. A sensor part is configured to sense a speed and a stroke of the piston in accordance with a change in position of a position determination part positioned on one side of the diameter maintenance part.Type: ApplicationFiled: February 27, 2020Publication date: September 3, 2020Inventors: Jung Myung Kwak, Yong Hee Kim, Daniel Domke, Simon Scherner, Peter Kurt Zawadzky
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Publication number: 20200277949Abstract: A variable displacement reciprocating piston unit includes a sensor probe, a target, a piston having a top dead center position and a bottom dead center position, and a signal processing unit. The sensor probe, the target, and the piston are located in relation to each other so that the target is moved from being absent from the sensor probe to being present at the sensor probe when the piston travels towards the top dead center position, and the target is moved from being present at the sensor probe to being absent from the sensor probe when the piston travels towards the bottom dead center position. The signal processing unit generates a signal indicating a stroke speed and a stroke length of the piston from a signal from the sensor probe indicating a presence and/or an absence of the target as the target moves relative to the sensor probe.Type: ApplicationFiled: February 27, 2020Publication date: September 3, 2020Applicants: TE Connectivity Germany GmbH, Hanon SystemsInventors: Jung Myung Kwak, Yong-Hee Kim
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Publication number: 20190376497Abstract: A compressor that includes a casing, a compression mechanism provided inside the casing to compress a refrigerant, a rotary shaft transmitting a rotational force to the compression mechanism from a drive source provided outside the casing, a clutch connecting the drive source and the rotary shaft by a magnetic force generated when electric power is applied to the clutch and disconnecting the drive source and the rotary shaft by losing the magnetic force when the electric power applied thereto is cut off, and a rotation measurement means for receiving the magnetic force from the clutch to measure a change in magnetic flux according to the rotation of the rotary shaft and measure a rotational speed of the rotary shaft. Thus, it is possible to measure the rotational speed of the rotary shaft without including a permanent magnet.Type: ApplicationFiled: March 21, 2018Publication date: December 12, 2019Inventors: Chan Ho Baek, Jung Myung Kwak, Sang Dong Min, Kyung Jae Lee
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Patent number: 9903369Abstract: Disclosed herein is a vane rotary compressor in which a fluid such as a refrigerant is compressed while a volume of a compression chamber is reduced during rotation of a rotor. There is provided a vane rotary compressor capable of preventing a delay of rotation operation of a vane by respectively forming oil films on both sides of a hinge portion of the vane in a rotation direction thereof and smoothly sliding the hinge portion.Type: GrantFiled: May 26, 2014Date of Patent: February 27, 2018Assignee: HANON SYSTEMSInventors: Jung Myung Kwak, Kweon Soo Lim, Seon Joo Hong
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Patent number: 9822779Abstract: The present invention relates to a vane rotary compressor wherein the volume of a compression room is reduced and a fluid is compressed when a rotor rotates. According to one embodiment of the present invention, the present invention provides the vane rotary compressor for maximizing the rotational moment of a vane by extending a weight part at a front end part of the curved blade type vane so as to remove the hitting noise due to the delay of the rotational operation of the vane when the rotor is rotated, and increasing the performance by reducing the internal leak.Type: GrantFiled: January 29, 2014Date of Patent: November 21, 2017Assignee: HANON SYSTEMSInventors: Jung Myung Kwak, In Cheol Shin, Kweon Soo Lim, Seon Joo Hong
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Publication number: 20160265531Abstract: Disclosed herein is a vane rotary compressor in which a fluid such as a refrigerant is compressed while a volume of a compression chamber is reduced during rotation of a rotor. There is provided a vane rotary compressor capable of preventing a delay of rotation operation of a vane by respectively forming oil films on both sides of a hinge portion of the vane in a rotation direction thereof and smoothly sliding the hinge portion.Type: ApplicationFiled: May 26, 2014Publication date: September 15, 2016Inventors: Jung Myung Kwak, Kweon Soo Lim, Seon Joo Hong
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Patent number: 9341064Abstract: The present invention relates to a vane rotary compressor in which, while a rotor is rotating, the volume of a compressing chamber is reduced and a fluid such as a refrigerant is compressed. The vane rotary compressor according to one embodiment of the present invention is provided with the compressing chamber, the inner circumferential surface of which is formed in the shape of an involute curve, wherein the rotor is hinge-coupled with a plurality of cantilever vanes such that compression efficiency is high and noise is prevented from occurring during the operation of the compressor.Type: GrantFiled: July 20, 2012Date of Patent: May 17, 2016Assignee: Hanon SystemsInventors: Jung Myung Kwak, Seon Joo Hong, Kweon Soo Lim, In Cheol Shin
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Publication number: 20150369245Abstract: The present invention relates to a vane rotary compressor wherein the volume of a compression room is reduced and a fluid is compressed when a rotor rotates. According to one embodiment of the present invention, the present invention provides the vane rotary compressor for maximizing the rotational moment of a vane by extending a weight part at a front end part of the curved blade type vane so as to remove the hitting noise due to the delay of the rotational operation of the vane when the rotor is rotated, and increasing the performance by reducing the internal leak.Type: ApplicationFiled: January 29, 2014Publication date: December 24, 2015Inventors: Jung Myung Kwak, In Cheol Shin, Kweon Soo Lim, Seon Joo Hong
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Publication number: 20140170010Abstract: The present invention relates to a vane rotary compressor in which, while a rotor is rotating, the volume of a compressing chamber is reduced and a fluid such as a refrigerant is compressed. The vane rotary compressor according to one embodiment of the present invention is provided with the compressing chamber, the inner circumferential surface of which is formed in the shape of an involute curve, wherein the rotor is hinge-coupled with a plurality of cantilever vanes such that compression efficiency is high and noise is prevented from occurring during the operation of the compressor.Type: ApplicationFiled: July 20, 2012Publication date: June 19, 2014Applicant: Halla Visteon Climate Control Corp.Inventors: Jung Myung Kwak, Seon Joo Hong, Kweon Soo Lim, In Cheol Shin
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Publication number: 20140023538Abstract: Disclosed herein is a vane rotary compressor in which a fluid such as a refrigerant is compressed, with the volume of a compression chamber being reduced during the rotation of a rotor. In addition, disclosed is a vane rotary compressor having a configuration such that a space between a cylinder and a housing is divided into a high-pressure chamber, from which a high-pressure refrigerant is discharged, and an oil storage chamber in which oil included in the refrigerant is separated and stored, and having an oil decompression structure using a gap between a rotor and a head portion.Type: ApplicationFiled: May 31, 2013Publication date: January 23, 2014Inventors: Jung Myung KWAK, Seon Joo HONG, Kweon Soo LIM, In Cheol SHIN