Patents Assigned to Korea University of Technology
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Publication number: 20250207654Abstract: The present invention relates to a haptic actuator using a magnetorheological elastomer and a magnetorheological fluid, which has a shape in which a magnetorheological elastomer surrounds a ferrous elastomer and a magnetorheological fluid, the haptic actuator being capable of providing kinesthetic feedback related to an external force by increasing rigidity of the magnetorheological elastomer and increasing viscosity of the magnetorheological fluid, and capable of providing vibration feedback by generating vibration by being repeatedly compressed and restored in shape when an alternating current magnetic field is applied.Type: ApplicationFiled: January 11, 2024Publication date: June 26, 2025Applicant: Korea University Of Technology And Education Industry-University Cooperation FoundationInventors: Yong Hae HEO, Yuk Gwon SONG, Sang Youn KIM
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Patent number: 12269478Abstract: According to the method of estimating a maximum road friction coefficient, artificial braking or driving-related control is conducted and a maximum road friction coefficient is estimated based on a difference in wheel speeds between front and rear wheels, compensated for slip of tires.Type: GrantFiled: October 4, 2021Date of Patent: April 8, 2025Assignees: Hyundai Motor Company, Kia Corporation, Korea University of Technology and Education Industry-University Cooperation FoundationInventors: Hae Ryong Choi, Dong Yoon Hyun, Seung Han You
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Patent number: 12246703Abstract: An apparatus and a method for controlling motion of a vehicle to improve turning motion performance are provided. The processor determines a riding position of a user, receives information about a steering angle of the vehicle, and outputs a vehicle control signal with regard to turning motion performance according to at least one of a phase difference between a yaw rate and lateral acceleration or a lateral slip angle with respect to the riding position, based on the received steering angle. A controller controls the vehicle in accordance with the vehicle control signal. The apparatus provides a passenger of the vehicle with optimal turning motion performance.Type: GrantFiled: August 11, 2022Date of Patent: March 11, 2025Assignees: Hyundai Motor Company, Kia Corporation, Korea University Of Technology And Education Industry-University Cooperation FoundationInventors: Jee Yoon Suh, Seung Han You, Wan Ki Cho, Han Byeol Gil, Chang Jun Jeon
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Publication number: 20250078417Abstract: An augmented reality (AR) system includes a data generator configured to generate three-dimensional (3D) data corresponding to a press mold product, and an AR terminal configured to convert the 3D data into AR data. The AR terminal includes a data inputter configured to receive the 3D data and display information corresponding to location information of each node of the 3D data. The AR terminal also includes a data processor configured to convert the 3D data into a form of polygon mesh according to a type of form information of the 3D data and generate AR data in a form of 3D virtual model through matching with the display information. The AR terminal additionally includes a data augmentation part configured to augment and match the AR data on a real product displayed on a camera image, and augment and display the display information for each node, through a user interface (UI).Type: ApplicationFiled: December 11, 2023Publication date: March 6, 2025Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, Korea University Of Technology And Education Industry-University Cooperation FoundationInventors: Sanggwon Kim, Ju Chul Kim, Yoon Sang Kim, Su Young Kim, Young-Seung Lee
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Publication number: 20250058482Abstract: A robot joint device may include a first frame unit having a first hollow portion, a second frame unit having a second hollow portion, the second frame unit spaced apart from the first frame unit, a rotational axis unit on and between the first and second hollow portions and configured to rotate around first, second and third axes which are perpendicular to one another, a first link unit extending to bypass the rotational axis unit, connected to each of the first and second frame units with the rotational axis unit interposed therebetween, and configured to rotate around the first and second axes, and a second link unit extending to bypass the rotational axis unit while intersecting with the first link unit, connected to each of the first and second frame units with the rotational axis unit interposed therebetween, and configured to rotate around the first and second axes.Type: ApplicationFiled: November 1, 2024Publication date: February 20, 2025Applicants: NAVER CORPORATION, Korea University of Technology and Education Industry-University Cooperation FoundationInventors: Yong Jae KIM, Seong Ho YUN, Jae Hyun PARK
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Publication number: 20250058458Abstract: A robot joint device having an upper arm unit including a first rotating pulley, a second rotating pulley and a third rotating pulley sequentially arranged in one direction, a forearm unit including a fixing pulley configured to rolling-contact the third rotating pulley, a connection unit including a first pivot shaft passing through the third rotating pulley and being connected to the upper arm unit, and a second pivot shaft passing through the fixing pulley and being connected to the forearm unit, a first cable unit wound around the first rotating pulley in a first direction, bent between the second rotating pulley and the third rotating pulley, and fixed to the fixing pulley, and a second cable unit wound around the first rotating pulley in a second direction opposite to the first direction, bent between the second rotating pulley and the third rotating pulley, and fixed to the fixing pulley.Type: ApplicationFiled: November 1, 2024Publication date: February 20, 2025Applicants: NAVER CORPORATION, Korea University of Technology and Education Industry-University Cooperation FoundationInventors: Yong Jae KIM, Seong Ho YUN, Jae Hyun PARK
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Patent number: 12148589Abstract: In an embodiment a shape-transformable switch apparatus includes a housing comprising an accommodating region with a high voltage electrode, a Electrorheological (ER) fluid located in the accommodating region, the ER fluid configured to change viscosity and rigidity, a switch cover shielding an upper portion of the housing, the switch cover configured to change a shape based on changes of the viscosity and of the rigidity of the ER fluid; and a controller configured to allow a voltage to be applied to the high voltage electrode such that an electrostatic attraction is generated so that the ER fluid flows and is pressed against the switch cover thereby changing a shape of the switch cover.Type: GrantFiled: October 21, 2022Date of Patent: November 19, 2024Assignees: Hyundai Motor Company, Kia Corporation, Korea University of Technology and Education Industry-University Cooperation FoundationInventors: Yoon Im, Yong Won Choi, Myung Hoe Kim, Joo Hwa Kim, Eun Jae Shin, Hyun U Ko, Sang Youn Kim
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Patent number: 12139129Abstract: The present disclosure relates to an apparatus for controlling the motion of a vehicle to improve riding comfort, and a method thereof. According to an embodiment of the present disclosure, a processor may determine a boarding location for a user and may determine a vehicle control signal in consideration of riding comfort according to acceleration or jerk based on the boarding location. A controller may control the vehicle depending on the vehicle control signal.Type: GrantFiled: August 18, 2022Date of Patent: November 12, 2024Assignees: HYUNDAI MOTOR COMPANY, Kia Corporation, Korea University of Technology and Education Industry-University Cooperation FoundationInventors: Jee Yoon Suh, Seung Han You, Wan Ki Cho, Han Byeol Gil, Chang Jun Jeon
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Patent number: 12125637Abstract: In an embodiment a shape-transformable switch apparatus includes an electromagnet arranged inside a housing, wherein the electromagnet has an outer circumferential surface wound with a solenoid coil and is configured to provide a magnetic field when a power is applied to the solenoid coil, a Magnetorheological Elastomer (MRE) disposed on an upper portion of the electromagnet, wherein the MRE is configured to change from an initial soft state to a relatively hard state when the power is applied to the solenoid coil and configured to be pressed and to move upward when the electromagnet moves upward and a switch cover disposed on an upper portion of the housing, the switch cover configured to form a switch shape and to protrude outward when the MRE moves in an upward direction.Type: GrantFiled: December 5, 2022Date of Patent: October 22, 2024Assignees: Hyundai Motor Company, Kia Corporation, Korea University Of Technology And Education Industry-University Cooperation FoundationInventors: Yoon Im, Yong Won Choi, Myung Hoe Kim, Joo Hwa Kim, Seok Han Lee, Hyun U Ko, Sang Youn Kim
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Patent number: 12117861Abstract: In an embodiment a magnetorheological fluid-based haptic knob apparatus includes a housing, a solenoid coil mounted inside the housing, the solenoid coil configured to generate a magnetic field thereby providing magnetic flux, a shaft connected to the housing and including a rotational rod, wherein the shaft is configured to generate a plurality of modes and a magnetorheological fluid accommodated inside the housing, the magnetorheological fluid configured to form a magnetic chain in response of the magnetic flux.Type: GrantFiled: November 9, 2022Date of Patent: October 15, 2024Assignees: Hyundai Motor Company, Kia Corporation, Korea University Of Technology And Education Industry-University Cooperation FoundationInventors: Yoon Im, Yong Won Choi, Myung Hoe Kim, Joo Hwa Kim, In Ho Yun, Hyun U Ko, Sang Youn Kim
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Patent number: 12083672Abstract: A gravity compensation assembly including a main frame having one side connected to a weight body to be supported, and the other side where an inner rotation portion and an outer rotation portion spaced apart from each other and having rotation axis in an x-axis direction are coupled, an auxiliary frame having one side rotatably connected to the inner rotation portion of the main frame, and the other side where an auxiliary rotation portion having a rotation axis in the x-axis direction is coupled, and an elastic force providing having one side rotatably connected to the outer rotation portion of the main frame, and the other side coupled to the auxiliary rotation portion of the auxiliary frame, and configured to perform load compensation by an elastic force when a center of gravity changes as a relative angle of the main frame and the auxiliary frame changes may be provided.Type: GrantFiled: August 17, 2021Date of Patent: September 10, 2024Assignees: Korea University Of Technology And Education Industry—University Corporation Foundation, NAVER CorporationInventors: Yong Jae Kim, Seong Ho Yun
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Patent number: 12014855Abstract: The present invention relates to a haptic actuator based on a nutation structure using a squeeze mode of a magneto-rheological fluid, which compresses a magneto-rheological fluid (MR fluid) by using a rotary body capable of performing a rotary motion based on a nutation structure, thereby generating a sustainable rotational resistance force by using a squeeze mode and a flow mode of the MR fluid.Type: GrantFiled: February 27, 2023Date of Patent: June 18, 2024Assignee: Korea University Of Technology And Education Industry-University Cooperation FoundationInventors: Yong Hae Heo, Hyun-U Ko, Seok-Han Lee, Seang Ho Kim, Sang-Youn Kim
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Patent number: 11974955Abstract: A frame module includes a frame configured to enclose a portion of a user, and at least one reinforcement belt of which both end portions are connected to both sides of the frame, thereby restricting a splaying level of the frame in a predetermined direction.Type: GrantFiled: December 6, 2021Date of Patent: May 7, 2024Assignees: Samsung Electronics Co., Ltd., Korea University of Technology and Education Industry-University Cooperation FoundationInventors: Minhyung Lee, Jeonghun Kim, Se-Gon Roh, Youn Baek Lee, Jongwon Lee, Byungjune Choi, Hyun Do Choi, Yong-Jae Kim
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Publication number: 20240100225Abstract: Disclosed is a method of manufacturing an artificial skin structure applied with a haptic technology, in which a polymer layer made of a PVC gel material is interposed between electrodes made of a hydrogel material to accurately recognize a pressing form, a pressing direction, and a pressing degree of external force based on a capacitance change value or resistance change value to the external force applied to the electrode made of a hydrogel material, and particularly, a material having excellent elasticity is applied to an electrode and a polymer layer itself to accurately recognize and utilize various motions, such as stroking, pinching, and twisting motions, instead of a simple pressing motion, and an artificial skin structure manufactured by the same.Type: ApplicationFiled: April 20, 2023Publication date: March 28, 2024Applicant: Korea University Of Technology And Education Industry-University Cooperation FoundationInventors: Sang-Youn KIM, Seok-Han LEE
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Patent number: 11941376Abstract: A method of providing intelligent software is provided. According to the present disclosure, it is possible to request an optimal AI model on the basis of a pre-trained AI model and meta information of the AI model, and it is possible to easily provide an AI model optimized for an intelligence device by responding to the request by creating a plurality of AI differentiation models from the AI model in accordance with a plurality of differentiation levels.Type: GrantFiled: December 6, 2021Date of Patent: March 26, 2024Assignees: Korea University of Technology, Education Industry-University Cooperation FoundationInventors: Won-Tae Kim, Young-Jin Kim, Deun-Sol Cho
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Publication number: 20240095427Abstract: Disclosed are a method and an apparatus of synthetic data generation for training an artificial intelligence model. The method includes: reading a target environmental model simulating a target environment to generate synthetic data among a plurality of environmental models simulating a plurality of actual environments, respectively; extracting an environmental feature which influences generation of data in the target environment; configuring a synthetic data generation function of a synthetic data generation simulator for the target environmental model so that the synthetic data reflects the environmental feature; and generating the synthetic data by using the synthetic data generation simulator for the target environmental model, and has an effect of being capable of generating high-quality learning synthetic data which may be used for training an artificial intelligence model.Type: ApplicationFiled: December 19, 2022Publication date: March 21, 2024Applicant: Korea University of Technology and Education Industry-University Cooperation FoundationInventors: Won-Tae Kim, Hanjin Kim, Youngjin Kim
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Patent number: 11703109Abstract: A planetary gear actuator including a sun gear, a rotary internal gear being concentric with the sun gear, a fixed internal gear being concentric with the sun gear, compound planetary gears, and a carrier connected to each of the compound planetary gears so as to be rotatable relative to each of compound planetary gears may be provided, Each of the compound planetary gears may include a first planet gear engaged with the sun gear, a second planet gear at one side of the first planet gear, engaged with the rotary internal gear, and having a smaller number of teeth than the first planet gear, and a third planet gear at another side of the first planet gear, engaged with the fixed internal gear, and having a smaller number of teeth than the first planet gear. One compound planetary gear may overlap another compound planetary gear in a thickness direction.Type: GrantFiled: September 9, 2021Date of Patent: July 18, 2023Assignees: NAVER LABS CORPORATION, Korea University of Technology and Education Inductry-University Cooperation FoundationInventors: Yong Jae Kim, Seong Ho Yun, Ji Won Seo
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Publication number: 20230211772Abstract: An apparatus and a method for controlling motion of a vehicle to improve turning motion performance are provided. The processor determines a riding position of a user, receives information about a steering angle of the vehicle, and outputs a vehicle control signal with regard to turning motion performance according to at least one of a phase difference between a yaw rate and lateral acceleration or a lateral slip angle with respect to the riding position, based on the received steering angle. A controller controls the vehicle in accordance with the vehicle control signal. The apparatus provides a passenger of the vehicle with optimal turning motion performance.Type: ApplicationFiled: August 11, 2022Publication date: July 6, 2023Applicants: Hyundai Motor Company, Kia Corporation, Korea University Of Technology And Education Industry-University Cooperation FoundationInventors: Jee Yoon SUH, Seung Han You, Wan Ki Cho, Han Byeol Gil, Chang Jun Jeon
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Publication number: 20230192068Abstract: The present disclosure relates to an apparatus for controlling the motion of a vehicle to improve riding comfort, and a method thereof. According to an embodiment of the present disclosure, a processor may determine a boarding location for a user and may determine a vehicle control signal in consideration of riding comfort according to acceleration or jerk based on the boarding location. A controller may control the vehicle depending on the vehicle control signal.Type: ApplicationFiled: August 18, 2022Publication date: June 22, 2023Applicants: HYUNDAI MOTOR COMPANY, Kia Corporation, Korea University Of Technology And Education Industry-University Cooperation FoundationInventors: Jee Yoon SUH, Seung Han YOU, Wan Ki CHO, Han Byeol GIL, Chang Jun JEON
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Publication number: 20220258752Abstract: Disclosed is a self-evolution method of an autonomous CPS performance of an autonomous CPS self-evolution framework based on federated reinforcement learning.Type: ApplicationFiled: February 23, 2021Publication date: August 18, 2022Applicant: Korea University Of Technology And Education Industry-University Cooperation FoundationInventors: Won-Tae KIM, Deun-Sol CHO, Seongjin YUN, Hanjin KIM, Young-Jin KIM