Patents by Inventor Sanghwa Do
Sanghwa Do 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: 10855136Abstract: A cooling unit of a drive motor includes: a fixing member installed on an inner wall surface of a motor housing and configured to fix a stator core of the drive motor, wherein the fixing member has a ring shape, includes a flow path formed therein in order to allow a cooling medium to flow, and includes a cooling medium inlet and a cooling medium outlet formed to be connected to the flow path, the flow path includes a first path connecting the cooling medium inlet and the cooling medium outlet to each other at one side and a second path connecting the cooling medium inlet and the cooling medium outlet to each other at another side, and the first and second paths have different flow cross sections and are connected to each other.Type: GrantFiled: March 13, 2019Date of Patent: December 1, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Kyoungbum Kim, MyungKyu Jeong, GaEun Lee, SangHwa Do, Young Jin Seo
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Patent number: 10855135Abstract: A cooling unit of a drive motor includes: a fixing member installed on an inner wall surface of a motor housing and configured to fix a stator core of the drive motor, wherein the fixing member has a ring shape, includes a flow path formed therein in order to allow a cooling medium to flow, and includes a cooling medium inlet and a cooling medium outlet formed to be connected to the flow path, the flow path includes a first path connecting the cooling medium inlet and the cooling medium outlet to each other at one side and a second path connecting the cooling medium inlet and the cooling medium outlet to each other at another side, and the first and second paths have different flow cross sections and are connected to each other.Type: GrantFiled: March 13, 2019Date of Patent: December 1, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Kyoungbum Kim, MyungKyu Jeong, GaEun Lee, SangHwa Do, Young Jin Seo
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Patent number: 10476331Abstract: The present disclosure provides a rotor of the wound rotor driving motor including: a first core body having an outer surface and an inner surface, wherein the first core body forms a space inside of the first core body; a second core body being inserted into inside of the first core body, wherein the second core body contacts with the inner surface of the first core body; and a coil assembly combined to the second core body in a radial direction.Type: GrantFiled: May 3, 2017Date of Patent: November 12, 2019Assignee: Hyundai Motor CompanyInventors: SangHwa Do, Jae Bum Park, Hee Ra Lee, Kyoungbum Kim
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Patent number: 10457268Abstract: A system and a method of controlling a drive motor for a vehicle is disclosed. The system of controlling a drive motor for a vehicle may include: an engine and the drive motor as power sources; a data detector detecting a state data for controlling the drive motor; and a vehicle controller setting a motor demand power and a gear stage based on the state data. In particular, the vehicle controller generates a motor demand torque based on the motor demand power and the gear stage, checks a motor temperature after driving the drive motor based on the motor demand torque, and changes the gear stage based on the motor temperature.Type: GrantFiled: June 13, 2017Date of Patent: October 29, 2019Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Young Jin Seo, Hong Seok Yang, Yeonho Kim, Kyoungbum Kim, SangHwa Do, GaEun Lee, Hee Ra Lee, MyungKyu Jeong
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Publication number: 20190214878Abstract: A cooling unit of a drive motor includes: a fixing member installed on an inner wall surface of a motor housing and configured to fix a stator core of the drive motor, wherein the fixing member has a ring shape, includes a flow path formed therein in order to allow a cooling medium to flow, and includes a cooling medium inlet and a cooling medium outlet formed to be connected to the flow path, the flow path includes a first path connecting the cooling medium inlet and the cooling medium outlet to each other at one side and a second path connecting the cooling medium inlet and the cooling medium outlet to each other at another side, and the first and second paths have different flow cross sections and are connected to each other.Type: ApplicationFiled: March 13, 2019Publication date: July 11, 2019Inventors: Kyoungbum Kim, MyungKyu Jeong, GaEun Lee, SangHwa Do, Young Jin Seo
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Publication number: 20190214879Abstract: A cooling unit of a drive motor includes: a fixing member installed on an inner wall surface of a motor housing and configured to fix a stator core of the drive motor, wherein the fixing member has a ring shape, includes a flow path formed therein in order to allow a cooling medium to flow, and includes a cooling medium inlet and a cooling medium outlet formed to be connected to the flow path, the flow path includes a first path connecting the cooling medium inlet and the cooling medium outlet to each other at one side and a second path connecting the cooling medium inlet and the cooling medium outlet to each other at another side, and the first and second paths have different flow cross sections and are connected to each other.Type: ApplicationFiled: March 13, 2019Publication date: July 11, 2019Inventors: Kyoungbum Kim, MyungKyu Jeong, GaEun Lee, SangHwa Do, Young Jin Seo
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Patent number: 10333368Abstract: A cooling unit of a drive motor includes: a fixing member installed on an inner wall surface of a motor housing and configured to fix a stator core of the drive motor, wherein the fixing member has a ring shape, includes a flow path formed therein in order to allow a cooling medium to flow, and includes a cooling medium inlet and a cooling medium outlet formed to be connected to the flow path, the flow path includes a first path connecting the cooling medium inlet and the cooling medium outlet to each other at one side and a second path connecting the cooling medium inlet and the cooling medium outlet to each other at another side, and the first and second paths have different flow cross sections and are connected to each other.Type: GrantFiled: September 14, 2016Date of Patent: June 25, 2019Assignee: Hyundai Motor CompanyInventors: Kyoungbum Kim, MyungKyu Jeong, GaEun Lee, SangHwa Do, Young Jin Seo
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Patent number: 10243436Abstract: A Wound Rotor Synchronous Motor (WRSM) includes a rotor body that is rotatably installed at a predetermined gap within a stator and a rotor coil that is wound at a plurality of rotor teeth. The WRSM includes: bobbins that are each disposed at both sides of a shaft direction of the rotor body so as to support the rotor coil and that are fixed to the rotor body by the rotor coil; a wedge member that is inserted in a shaft direction between rotor teeth of the rotor body so as to protrude to the outside of both ends of the rotor body, the wedge member supporting the rotor coil; and end coil covers that enclose a protruded portion of the wedge member at both sides of the shaft direction of the rotor body and that are each mounted at the bobbins.Type: GrantFiled: October 25, 2016Date of Patent: March 26, 2019Assignee: Hyundai Motor CompanyInventors: Sangjin Park, Hyoungjun Cho, Jungwoo Lee, Yeonho Kim, SangHwa Do, Ki Nam Kim, Yongsung Jang
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Patent number: 10017076Abstract: A motor control apparatus for a vehicle includes a data detector detecting driving data and a vehicle controller controlling a drive motor according to the driving data. The vehicle controller includes an acceleration generator determining a request torque and a request speed using the driving data and generating a request acceleration using the request torque and the request speed; a driving point determinator selecting an inductance control current map or a motor efficiency control current map according to the request acceleration and determining a current driving point according to the request torque and the request speed using the selected current map; and a motor controller controlling the drive motor using the current driving point.Type: GrantFiled: September 12, 2016Date of Patent: July 10, 2018Assignee: HYUNDAI MOTOR COMPANYInventors: SangHwa Do, Sangjin Park, Young Jin Seo, Kyoungbum Kim
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Publication number: 20180166936Abstract: The present disclosure provides a rotor of the wound rotor driving motor including: a first core body having an outer surface and an inner surface, wherein the first core body forms a space inside of the first core body; a second core body being inserted into inside of the first core body, wherein the second core body contacts with the inner surface of the first core body; and a coil assembly combined to the second core body in a radial direction.Type: ApplicationFiled: May 3, 2017Publication date: June 14, 2018Applicant: HYUNDAI MOTOR COMPANYInventors: SangHwa DO, Jae Bum PARK, Hee Ra LEE, Kyoungbum KIM
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Publication number: 20180126974Abstract: A system and a method of controlling a drive motor for a vehicle is disclosed. The system of controlling a drive motor for a vehicle may include: an engine and the drive motor as power sources; a data detector detecting a state data for controlling the drive motor; and a vehicle controller setting a motor demand power and a gear stage based on the state data. In particular, the vehicle controller generates a motor demand torque based on the motor demand power and the gear stage, checks a motor temperature after driving the drive motor based on the motor demand torque, and changes the gear stage based on the motor temperature.Type: ApplicationFiled: June 13, 2017Publication date: May 10, 2018Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Young Jin SEO, Hong Seok YANG, Yeonho KIM, Kyoungbum KIM, SangHwa DO, GaEun LEE, Hee Ra LEE, MyungKyu JEONG
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Patent number: 9876400Abstract: A rotor of a wound rotor synchronous motor is spaced apart from an interior diameter surface of a stator by a predetermined gap, and includes a plurality of teeth wound by a rotor coil, and circumferentially spaced apart from each other by a distance, where a slot is formed between the teeth, each tooth is formed with a shoe facing an interior diameter surface of the stator, and both ends of the shoe protrude in a direction of both ends of an adjacent shoe, where each tooth includes a first part corresponding to a winding body of the tooth and a second part extending in the direction of both ends of the adjacent shoe from both sides of the first part.Type: GrantFiled: June 23, 2015Date of Patent: January 23, 2018Assignee: Hyundai Motor CompanyInventors: Sanghwa Do, Sanghoon Moon, Jung Shik Kim, Woongchan Chae, Yongsung Jang, Sangjin Park, Hyoungjun Cho, Kyoungbum Kim
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Publication number: 20170353092Abstract: A Wound Rotor Synchronous Motor (WRSM) includes a rotor body that is rotatably installed at a predetermined gap within a stator and a rotor coil that is wound at a plurality of rotor teeth. The WRSM includes: bobbins that are each disposed at both sides of a shaft direction of the rotor body so as to support the rotor coil and that are fixed to the rotor body by the rotor coil; a wedge member that is inserted in a shaft direction between rotor teeth of the rotor body so as to protrude to the outside of both ends of the rotor body, the wedge member supporting the rotor coil; and end coil covers that enclose a protruded portion of the wedge member at both sides of the shaft direction of the rotor body and that are each mounted at the bobbins.Type: ApplicationFiled: October 25, 2016Publication date: December 7, 2017Inventors: Sangjin Park, Hyoungjun Cho, Jungwoo Lee, Yeonho Kim, SangHwa Do, Ki Nam Kim, Yongsung Jang
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Publication number: 20170302137Abstract: A cooling unit of a drive motor includes: a fixing member installed on an inner wall surface of a motor housing and configured to fix a stator core of the drive motor, wherein the fixing member has a ring shape, includes a flow path formed therein in order to allow a cooling medium to flow, and includes a cooling medium inlet and a cooling medium outlet formed to be connected to the flow path, the flow path includes a first path connecting the cooling medium inlet and the cooling medium outlet to each other at one side and a second path connecting the cooling medium inlet and the cooling medium outlet to each other at another side, and the first and second paths have different flow cross sections and are connected to each other.Type: ApplicationFiled: September 14, 2016Publication date: October 19, 2017Inventors: Kyoungbum Kim, MyungKyu Jeong, GaEun Lee, SangHwa Do, Young Jin Seo
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Publication number: 20170291505Abstract: A motor control apparatus for a vehicle includes a data detector detecting driving data and a vehicle controller controlling a drive motor according to the driving data. The vehicle controller includes an acceleration generator determining a request torque and a request speed using the driving data and generating a request acceleration using the request torque and the request speed; a driving point determinator selecting an inductance control current map or a motor efficiency control current map according to the request acceleration and determining a current driving point according to the request torque and the request speed using the selected current map; and a motor controller controlling the drive motor using the current driving point.Type: ApplicationFiled: September 12, 2016Publication date: October 12, 2017Inventors: SangHwa DO, Sangjin PARK, Young Jin SEO, Kyoungbum KIM
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Publication number: 20170271967Abstract: The present disclosure provides a rotor structure of a motor including: a plurality of rotor cores disposed in predetermined directions at a rotating member; a plurality of coils wound around each of the rotor cores; and a crossover portion which is formed at a predetermined region of the rotating member and through which one of the coils wound around one of the rotor cores is passed to another rotor core. The crossover portion may include an inner partition wall, intermediate partition walls and an outer partition wall which are formed at a predetermined distance from each other from the rotation center of the rotating member to the rotor cores, a first groove may be formed between the inner partition wall and the intermediate partition wall, a second groove may be formed between the intermediate partition wall and the outer partition wall, and the second groove may have a larger depth than the first groove.Type: ApplicationFiled: August 29, 2016Publication date: September 21, 2017Applicant: HYUNDAI MOTOR COMPANYInventors: Yongsung JANG, SangHwa DO, WoongChan CHAE, Sangjin PARK
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Patent number: 9614469Abstract: An apparatus and method for controlling an electric vehicle are provided. The apparatus includes a battery that is configured to charge electrical energy and a motor that is configured to generate a driving torque from electrical energy charged in the battery. A controller is configured to determine a driving range of the vehicle, perform maximum efficiency control in which efficiency of the motor is maximized when the driving range of the vehicle is a main driving range, and perform minimum torque ripple control in which torque ripple of the motor is minimized when the driving range of the vehicle is a supplementary driving range.Type: GrantFiled: June 22, 2015Date of Patent: April 4, 2017Assignee: Hyundai Motor CompanyInventors: Jung Shik Kim, Sanghoon Moon, WoongChan Chae, Kyoungbum Kim, SangHwa Do, Hyoungjun Cho
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Publication number: 20160173013Abstract: An apparatus and method for controlling an electric vehicle are provided. The apparatus includes a battery that is configured to charge electrical energy and a motor that is configured to generate a driving torque from electrical energy charged in the battery. A controller is configured to determine a driving range of the vehicle, perform maximum efficiency control in which efficiency of the motor is maximized when the driving range of the vehicle is a main driving range, and perform minimum torque ripple control in which torque ripple of the motor is minimized when the driving range of the vehicle is a supplementary driving range.Type: ApplicationFiled: June 22, 2015Publication date: June 16, 2016Inventors: Jung Shik Kim, Sanghoon Moon, WoongChan Chae, Kyoungbum Kim, SangHwa Do, Hyoungjun Cho
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Publication number: 20160149444Abstract: A stator of an interior permanent magnet synchronous motor is provided. The stator spaced apart from a rotor by a predetermined gap within an interior permanent magnet synchronous motor includes a stator tooth that is circumferentially spaced apart by a predetermined distance while interposing a slot therebetween that corresponds to an exterior diameter surface of the rotor. Additionally, a stator shoe is formed at an end of the stator tooth and includes an interior diameter surface of a predetermined diameter that faces the exterior diameter surface of the rotor. A cross point between a circle has a diameter of (interior diameter of the stator shoe×1.0287×24/slot number) mm and the stator tooth is a tooth end start point of the stator tooth.Type: ApplicationFiled: May 27, 2015Publication date: May 26, 2016Inventors: Sanghoon Moon, Hyoungjun Cho, Yeonho Kim, Kyoungbum Kim, SangHwa Do, WoongChan Chae, Ki Nam Kim, Jung Shik Kim
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Publication number: 20160149445Abstract: A rotor of a wound rotor synchronous motor is spaced apart from an interior diameter surface of a stator by a predetermined gap, and includes a plurality of teeth wound by a rotor coil, and circumferentially spaced apart from each other by a distance, where a slot is formed between the teeth, each tooth is formed with a shoe facing an interior diameter surface of the stator, and both ends of the shoe protrude in a direction of both ends of an adjacent shoe, where each tooth includes a first part corresponding to a winding body of the tooth and a second part extending in the direction of both ends of the adjacent shoe from both sides of the first part.Type: ApplicationFiled: June 23, 2015Publication date: May 26, 2016Inventors: Sanghwa Do, Sanghoon Moon, Jung Shik Kim, Woongchan Chae, Yongsung Jang, Sangjin Park, Hyoungjun Cho, Kyoungbum Kim