Patents by Inventor In Soung Jung
In Soung Jung 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: 20240124080Abstract: Provided is a rack for a bicycle or a kick scooter that is a single device allowing either of a bicycle or a kick scooter to be parked. The rack includes a pair of support members formed to extend upward from the ground and disposed to be parallel with and spaced apart from each other, a rotating shaft coupled to the support members, a parking member interposed between the pair of support members and axially coupled to the rotating shaft so as to be rotatable, and a protruding member disposed to be spaced apart from a front of the parking member that faces the bicycle or the kick scooter and having both ends bent toward the parking member to be fixed to the parking member.Type: ApplicationFiled: November 17, 2020Publication date: April 18, 2024Applicant: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUSInventors: Joon-myung CHOI, Soung-bin GWAK, Min-jung KWON
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Patent number: 9829392Abstract: The present disclosure relates to an apparatus and method for estimating a temperature of a motor using a Hall sensor. The method includes detecting, at a digital Hall sensor, a position of a rotor included in a motor and outputting an on signal in an operating period and an off signal in a release period according to a relative position of the rotor, calculating, at a temperature determining module, a difference between duration of the operating period and duration of the release period according to an output waveform of the digital Hall sensor, and then determining, at the temperature determining module, a temperature of the motor with reference to a temperature corresponding to the duration difference. Accordingly, it is possible to estimate the internal temperature of a motor without installing a temperature sensor in the motor, to maintain a small size of the motor, and to reduce production costs.Type: GrantFiled: April 4, 2014Date of Patent: November 28, 2017Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTEInventors: Joon Sung Park, Se Hyun Rhyu, In Soung Jung, Jun Hyuk Choi, Bon Gwan Gu, Jin Hong Kim
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Patent number: 9634492Abstract: Provided are a power generation method and system of a power generator that can allow an output power of the power generator to be constant and cope with a case in which the velocity of a power generation source changes very quickly at a low lost. The power generation method includes determining a reference total power intended to be generated by a plurality of power generators, calculating a current command value through the reference total power and an instantaneous velocity sensed by each of the plurality of power generators, and regulating an output current of the power generator using the calculated current command value such that a total power output by the plurality of power generators is approximate to the reference total power.Type: GrantFiled: May 13, 2014Date of Patent: April 25, 2017Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTEInventors: Joon Sung Park, Jin Hong Kim, Jun Hyuk Choi, In Soung Jung
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Patent number: 9293968Abstract: A motor includes: a first slot and a second slot in which a first current having the same phase flows, the first slot including a first coil end portion in which a current flows in a first direction and a second coil end portion in which a current flows in the opposite direction of the first direction, and the second slot including a third coil end portion in which a current flows in the second direction and a fourth coil end portion in which a current flows in the first direction, a stator forming a fixed magnetic field by the first current, and a rotor forming a rotating field and rotated according to an interaction with the fixed magnetic field formed by the stator.Type: GrantFiled: December 24, 2012Date of Patent: March 22, 2016Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTEInventors: Se Hyun You, In Soung Jung, Jung Moo Seo
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Publication number: 20150270715Abstract: Provided are a power generation method and system of a power generator that can allow an output power of the power generator to be constant and cope with a case in which the velocity of a power generation source changes very quickly at a low lost. The power generation method includes determining a reference total power intended to be generated by a plurality of power generators, calculating a current command value through the reference total power and an instantaneous velocity sensed by each of the plurality of power generators, and regulating an output current of the power generator using the calculated current command value such that a total power output by the plurality of power generators is approximate to the reference total power.Type: ApplicationFiled: May 13, 2014Publication date: September 24, 2015Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTEInventors: Joon Sung Park, Jin Hong Kim, Jun Hyuk Choi, In Soung Jung
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Patent number: 8947028Abstract: Disclosed are a method and system for detecting a fault of a parallel coil type permanent magnet motor. This method includes driving a parallel coil type motor on the basis of a pre-defined current reference value, detecting a phase current vector of the motor, and calculating a current compensation value for removing a negative sequence component of the motor on the basis of the phase current vector.Type: GrantFiled: March 18, 2013Date of Patent: February 3, 2015Assignee: Korea Electronics Technology InstituteInventors: Bon Gwan Gu, In Soung Jung, Jun Hyuk Choi, Joon Sung Park, Jin Hong Kim
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Publication number: 20140369385Abstract: The present disclosure relates to an apparatus and method for estimating a temperature of a motor using a Hall sensor. The method includes detecting, at a digital Hall sensor, a position of a rotor included in a motor and outputting an on signal in an operating period and an off signal in a release period according to a relative position of the rotor, calculating, at a temperature determining module, a difference between duration of the operating period and duration of the release period according to an output waveform of the digital Hall sensor, and then determining, at the temperature determining module, a temperature of the motor with reference to a temperature corresponding to the duration difference. Accordingly, it is possible to estimate the internal temperature of a motor without installing a temperature sensor in the motor, to maintain a small size of the motor, and to reduce production costs.Type: ApplicationFiled: April 4, 2014Publication date: December 18, 2014Applicant: Korea Electronics Technology InstituteInventors: Joon Sung PARK, Se Hyun Rhyu, In Soung Jung, Jun Hyuk Choi, Bon Gwan Gu, Jin Hong Kim
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Patent number: 8913353Abstract: A method and system for detecting a fault of a serial coil type permanent magnet motor includes driving the motor based on a predefined current reference value, detecting a phase current vector of the motor, and calculating a current compensation value for removing a negative sequence component of the motor based on the phase current vector. The current compensation value is provided to a negative sequence current controller for calculating a faulty phase and a degree of a fault of the motor using the output of the negative sequence current controller and a fault model to which induced magnetic flux variations in a specific slot of a specific faulty phase of the motor and other slots of the same phase as the specific phase are applied, and applying a current reference value to which the calculated faulty phase and degree of fault are applied.Type: GrantFiled: April 9, 2013Date of Patent: December 16, 2014Assignee: Korea Electronics Technology InstituteInventors: Bon Gwan Gu, Jun Hyuk Choi, In Soung Jung, Joon Sung Park, Jin Hong Kim
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Publication number: 20140159621Abstract: Disclosed are a method and system for detecting a fault of a parallel coil type permanent magnet motor. This method includes driving a parallel coil type motor on the basis of a pre-defined current reference value, detecting a phase current vector of the motor, and calculating a current compensation value for removing a negative sequence component of the motor on the basis of the phase current vector.Type: ApplicationFiled: March 18, 2013Publication date: June 12, 2014Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTEInventors: Bon Gwan GU, In Soung Jung, Jun Hyuk Choi, Joon Sung Park, Jin Hong Kim
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Publication number: 20140160602Abstract: A method and system for detecting a fault of a serial coil type permanent magnet motor includes driving the motor based on a predefined current reference value, detecting a phase current vector of the motor, and calculating a current compensation value for removing a negative sequence component of the motor based on the phase current vector. The current compensation value is provided to a negative sequence current controller for calculating a faulty phase and a degree of a fault of the motor using the output of the negative sequence current controller and a fault model to which induced magnetic flux variations in a specific slot of a specific faulty phase of the motor and other slots of the same phase as the specific phase are applied, and applying a current reference value to which the calculated faulty phase and degree of fault are applied.Type: ApplicationFiled: April 9, 2013Publication date: June 12, 2014Applicant: Korea Electronics Technology InstituteInventors: Bon Gwan Gu, Jun Hyuk Choi, In Soung Jung, Joon Sung Park, Jin Hong Kim
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Patent number: 7990013Abstract: A stator coil of a slotless motor is disclosed in which the stator coil is formed in such a manner that respective both distal ends of two unit coil bodies, each unit coil body arranged to face each other, are respectively coupled to form a plurality of circular coil bodies, each circular coil body having a different inner diameter, and a circular coil body having a smaller inner diameter is sequentially inserted into an inner side of a circular coil body having a larger inner diameter, whereby a horizontal width of the plurality of unit coil bodies of U, V and W phases is equal there among to cause the strength of the magnetic field of U, V and W phases to be equal, and to allow the stator to be accurately manufactured, thereby catering to a designer's intention and markedly simplifying the assembly processes.Type: GrantFiled: January 28, 2009Date of Patent: August 2, 2011Assignee: Korea Electronics Technology InstituteInventors: Jung Moo Seo, Joo Han Kim, Se Hyun Rhyu, In Soung Jung, Seung Bin Lim, Jun Hyuk Choi, Young Kyoun Kim, Bon Gwan Gu
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Publication number: 20090315427Abstract: A stator coil of a slotless motor is disclosed in which the stator coil is formed in such a manner that respective both distal ends of two unit coil bodies, each unit coil body arranged to face each other, are respectively coupled to form a plurality of circular coil bodies, each circular coil body having a different inner diameter, and a circular coil body having a smaller inner diameter is sequentially inserted into an inner side of a circular coil body having a larger inner diameter, whereby a horizontal width of the plurality of unit coil bodies of U, V and W phases is equal there among to cause the strength of the magnetic field of U, V and W phases to be equal, and to allow the stator to be accurately manufactured, thereby catering to a designer's intention and markedly simplifying the assembly processes.Type: ApplicationFiled: January 28, 2009Publication date: December 24, 2009Inventors: Jung Moo Seo, Joo Han Kim, Se Hyun Rhyu, In Soung Jung, Seung Bin Lim, Jun Hyuk Choi, Young Kyoun Kim, Bon Gwan Gu
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Patent number: 7205697Abstract: A claw-pole PM stepping motor includes a module that is formed in such a manner that a first driving unit and a second driving unit are symmetrically arranged with respect to a first claw-pole and a second claw-pole each oppositely disposed at a main yoke member internally disposed to substantially divide an inside of a housing, an inner portion of which is rotatably inserted and supported by a rotary shaft, and the first driving unit and the second driving unit have magnet rotors coaxially arranged to generate electromagnetic force; sub-yoke members; and coil bobbins. The claw-pole PM stepping motor is exempted from a structure where coil bobbins are concentrically arranged at a periphery of magnet rotors, and instead the coil bobbins are coaxially arranged and shifted from each other from the corresponding magnet rotors, such that a miniaturized motor with a reduced outer diameter can be embodied.Type: GrantFiled: January 24, 2006Date of Patent: April 17, 2007Assignee: Korea Electronics Technology InstituteInventors: Se Hyun Rhyu, In Soung Jung, Jin Hur, Ha Gyeong Sung, Jung Moo Seo, Jun Hyuk Choi, Joo Han Kim