Patents by Inventor Ji Won Oh

Ji Won Oh 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).

  • Patent number: 12643413
    Abstract: A method of controlling torque of a drive system of an electric vehicle includes determining, by a controller, required torque according to a vehicle driving state while the vehicle is driven, and determining a total torque command based on the determined required torque, and performing, by the controller, a front wheel and rear wheel torque distribution process on the total torque command, so that a front wheel torque command and a rear wheel torque command following the total torque command are determined.
    Type: Grant
    Filed: July 12, 2023
    Date of Patent: June 2, 2026
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Ji Won Oh, Jeong Soo Eo
  • Patent number: 12617292
    Abstract: A method of controlling a drive system torque of an electric vehicle for generating a torque by evading a backlash band to prevent the occurrence of backlash in the drive system includes determining, by a controller, whether a plurality of predetermined entry conditions for entering a responsiveness priority mode of the vehicle are satisfied in a predetermined order based on vehicle driving information in a state in which control of a power priority mode is performed, and transitioning, by the controller, a mode to the responsiveness priority mode when it is determined that the plurality of entry conditions are sequentially satisfied and performing control of the responsiveness priority mode.
    Type: Grant
    Filed: October 24, 2023
    Date of Patent: May 5, 2026
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Ji Won Oh, Ho Wook Lee, Jeong Soo Eo
  • Patent number: 12533966
    Abstract: A method of controlling a driving system torque of an electric vehicle includes limiting, by a controller, a slope of a front wheel torque command for front wheel torque control and a slope of a rear wheel torque command for rear wheel torque control by a slope limit value determined according to a vehicle driving state in a mode transition process in which a torque control mode upon travel of a vehicle is switched from one mode selected among a responsiveness priority mode and a power priority mode to another mode among the responsiveness priority mode and the power priority mode.
    Type: Grant
    Filed: October 30, 2023
    Date of Patent: January 27, 2026
    Assignees: Hyundai Motor Company;, Kia Corporation
    Inventors: Ji Won Oh, Ho Wook Lee, Jeong Soo Eo
  • Patent number: 12533962
    Abstract: A method of controlling torque of a drive system of an electric vehicle includes determining, by a controller, required torque according to a vehicle driving state while the vehicle is driven, and determining a total torque command based on the determined required torque, and performing, by the controller, a front wheel and rear wheel torque distribution process on the total torque command, so that a front wheel torque command and a rear wheel torque command following the total torque command are determined.
    Type: Grant
    Filed: July 12, 2023
    Date of Patent: January 27, 2026
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventor: Ji Won Oh
  • Patent number: 12521606
    Abstract: Embodiments of the inventive concept described herein relate to a golf sway analyzing apparatus, and more particularly, relate to a golf sway analyzing apparatus capable of analyzing a sway among golf postures of a user, and an analyzing method and program thereof. According to an embodiment of the inventive concept, it is possible to increase the consistency and accuracy of foot spacing calculation with low computational processing for the purpose of accurately performing sway analysis, by calculating the user's foot spacing and analyzing the user's sway based on a sensing signal of a sensor unit in which a plurality of sensors are arranged one-dimensionally or two-dimensionally on a mat plate.
    Type: Grant
    Filed: June 27, 2023
    Date of Patent: January 13, 2026
    Assignee: Morethings Co., Ltd.
    Inventors: Jae Kyung Kwak, Kwang Dek An, Ji Won Oh, Hwan Il Park, Jeong Min Han
  • Patent number: 12515538
    Abstract: In a torque control method of a drive system of an electric vehicle, in which torque is generated while evading a backlash band to prevent occurrence of backlash in the drive system, a front wheel torque command is determined as a value of equal to or less than a maximum front wheel torque threshold set to a negative (?) torque value, a rear wheel torque command is determined as a value of equal to or greater than a minimum rear wheel torque threshold set to a positive (+) torque value, and when an absolute value of the maximum front wheel torque threshold, and the minimum rear wheel torque threshold are referred to as offset torques, the offset torques are values varied depending on drive system state information.
    Type: Grant
    Filed: November 7, 2023
    Date of Patent: January 6, 2026
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Ji Won Oh, Ho Wook Lee, Jeong Soo Eo
  • Patent number: 12502974
    Abstract: A method for controlling regenerative braking includes determining a natural frequency of vehicle suspension pitch motion according to characteristics of a suspension device of vehicle; providing a filter of removing or passing a natural frequency component of the vehicle suspension pitch motion to a control unit; determining, by the control unit, a required regenerative braking force command based on vehicle driving information collected during driving; determining, by the control unit, a final front wheel regenerative braking force command and a final rear wheel regenerative braking force command through a filtering process using the filter from the determined required regenerative braking force command; and controlling, by the control unit, a regenerative braking force applied to a front wheel and a rear wheel by a driving device for driving the vehicle according to the determined final front wheel regenerative braking force command and final rear wheel regenerative braking force command.
    Type: Grant
    Filed: October 14, 2022
    Date of Patent: December 23, 2025
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventor: Ji Won Oh
  • Patent number: 12485772
    Abstract: A torque control method in a drive system of an electric vehicle includes determining, by a controller, a torque control mode corresponding to a current vehicle driving state among a plurality of preset torque control modes; and transitioning, by the controller, from a current torque control mode to the determined torque control mode, in which the transitioning to the determined torque control mode comprises performing, by the controller, limitation to a torque slope using a torque command at an immediately previous control cycle with respect to a front-wheel torque command that is a command for a front-wheel motor and a rear-wheel torque command that is a command for a rear-wheel motor, in a transient section where transition between torque control modes occurs.
    Type: Grant
    Filed: March 11, 2024
    Date of Patent: December 2, 2025
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Ji Won Oh, Ho Wook Lee, Jeong Soo Eo
  • Patent number: 12479305
    Abstract: A method for controlling regenerative braking includes setting a filter simulation map for simulating a filter of removing or passing a natural frequency component of vehicle suspension pitch motion according to suspension device characteristics of the vehicle and providing the filter simulation map to a controller of the vehicle, determining, by the controller, a required regenerative braking force command based on vehicle driving information collected during driving of the vehicle, determining a final front wheel regenerative braking force command and a final rear wheel regenerative braking force command from the determined required regenerative braking force command through a limit value application process using a limit value determined in the filter simulation map, and controlling a regenerative braking force applied to front and rear wheels as a force for decelerating the vehicle by a driving device for driving the vehicle according to the determined final front and rear wheel regenerative braking force
    Type: Grant
    Filed: November 29, 2022
    Date of Patent: November 25, 2025
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Ji Won Oh, Jeong Soo Eo
  • Publication number: 20250313211
    Abstract: A method of virtualizing characteristics of an internal combustion engine vehicle in an electric vehicle, the method includes: determining, by a controller, a current input torque applied to a powertrain from a motor that makes a vehicle move, determining, by the controller, tooth surface pressures of gears in the powertrain between the motor and driving wheels from the determined current input torque, generating, by the controller, a virtual effect signal for generating a virtual effect that simulates powertrain characteristics of an internal combustion engine vehicle based on the determined tooth surface pressures of the gears in the powertrain, and generating, by the controller, the virtual effect that simulates the powertrain characteristics of the internal combustion engine vehicle by controlling operation of a virtual effect generation device that generates the virtual effect according to the generated virtual effect signal.
    Type: Application
    Filed: June 17, 2025
    Publication date: October 9, 2025
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventor: Ji Won Oh
  • Patent number: 12428003
    Abstract: An apparatus and a method estimate backlash and compliance. The apparatus and the method are configured to distinguish and determine the backlash and the compliance occurring in a vehicle driving system. The method includes providing information related to a driving system model between a motor and a driving wheel for driving a vehicle to a controller, determining a compliance speed, by the controller, by using the information related to the driving system model based on vehicle driving information acquired by a driving information detector while the vehicle is driven, and determining a backlash speed, by the controller, by subtracting the determined compliance speed from an overall speed difference that is a difference between a motor speed and a driving wheel speed. The apparatus is configured to perform the method.
    Type: Grant
    Filed: February 8, 2024
    Date of Patent: September 30, 2025
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Ji Won Oh, Jeong Soo Eo, Sang Joon Kim, Lee Hyoung Cho
  • Patent number: 12397655
    Abstract: In a torque control method for a drive system of an electric vehicle configured for generating torque by evading a backlash band to prevent occurrence of backlash in the drive system, torque control modes include a contra-directional distribution mode in an acceleration direction in which a front-wheel torque command is determined to be a maximum front-wheel torque threshold value set as a negative (?) torque value in a regenerative direction and a rear-wheel torque command is determined to be a positive (+) torque value in a driving direction and a contra-directional distribution mode in a regenerative direction in which the rear-wheel torque command is determined to be a minimum rear-wheel torque threshold value set as a positive (+) torque value in the driving direction and the front-wheel torque command is determined to be a negative (?) torque value in the regenerative direction thereof.
    Type: Grant
    Filed: December 20, 2023
    Date of Patent: August 26, 2025
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Ji Won Oh, Ho Wook Lee, Jeong Soo Eo
  • Patent number: 12370902
    Abstract: A method of implementing a virtual jet propulsion mode in an electric vehicle, includes collecting, by a controller of the vehicle, vehicle driving information while the vehicle is running in a state where the virtual jet propulsion mode including a plurality of virtual modes for mimicking an operating state and a driving feeling of a jet engine is set in the controller of the vehicle, selecting, by the controller, a virtual mode corresponding to a current vehicle driving state from among the virtual modes of the virtual jet propulsion mode based on the collected vehicle driving information, determining, by the controller, a motor torque command corresponding to the collected vehicle driving information and a currently selected virtual mode, and controlling, by the controller, an operation of a motor that drives the vehicle according to the motor torque command.
    Type: Grant
    Filed: September 12, 2023
    Date of Patent: July 29, 2025
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventor: Ji Won Oh
  • Patent number: 12358510
    Abstract: A method of virtualizing characteristics of an internal combustion engine vehicle in an electric vehicle, the method includes: determining, by a controller, a current input torque applied to a powertrain from a motor that makes a vehicle move, determining, by the controller, tooth surface pressures of gears in the powertrain between the motor and driving wheels from the determined current input torque, generating, by the controller, a virtual effect signal for generating a virtual effect that simulates powertrain characteristics of an internal combustion engine vehicle based on the determined tooth surface pressures of the gears in the powertrain, and generating, by the controller, the virtual effect that simulates the powertrain characteristics of the internal combustion engine vehicle by controlling operation of a virtual effect generation device that generates the virtual effect according to the generated virtual effect signal.
    Type: Grant
    Filed: December 2, 2022
    Date of Patent: July 15, 2025
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventor: Ji Won Oh
  • Patent number: 12347633
    Abstract: Provided are a to-be-detected implement for rehabilitation training and a rehabilitation training system. The to-be-detected implement for rehabilitation training comprises: a cylinder-shaped main body with an opening in at least one side thereof; a first electrode portion formed on one region of the circumference of the main body; a second electrode portion separated from the first electrode portion and formed on another region of the circumference of the main body; and a guide portion which is formed between the first electrode portion and the second electrode portion to block the electrical connection between the first electrode portion and the second electrode portion, and which is recessed or protrudes at the circumference of the main body to a predetermined depth.
    Type: Grant
    Filed: October 22, 2021
    Date of Patent: July 1, 2025
    Assignee: MORETHINGS CO., LTD.
    Inventors: Jeong Min Han, Jae Kyung Kwak, Ji Won Oh, Hwan Il Park, Kwang Dek An
  • Patent number: 12337699
    Abstract: A method of controlling a torque of a drive system of an electric vehicle, includes determining, by a controller, a total torque command based on required torque according to a vehicle driving state while driving of the vehicle, determining whether a backlash band evasion mode is in an ON state or an OFF state, front wheel torque control or rear wheel torque control for evading a backlash band being performed in the mode, determining whether transition of the vehicle driving state to the ON state of the backlash band evasion mode is allowed when the backlash band evasion mode is in the OFF state, and controlling the backlash band evasion mode using a front wheel torque command and a rear wheel torque command determined from the total torque command in the ON state of the backlash band evasion mode when the transition is allowed.
    Type: Grant
    Filed: October 17, 2023
    Date of Patent: June 24, 2025
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Ji Won Oh, Jeong Soo Eo
  • Publication number: 20250187451
    Abstract: A torque control method in a drive system of an electric vehicle includes determining, by a controller, a torque control mode corresponding to a current vehicle driving state among a plurality of preset torque control modes; and transitioning, by the controller, from a current torque control mode to the determined torque control mode, in which the transitioning to the determined torque control mode comprises performing, by the controller, limitation to a torque slope using a torque command at an immediately previous control cycle with respect to a front-wheel torque command that is a command for a front-wheel motor and a rear-wheel torque command that is a command for a rear-wheel motor, in a transient section where transition between torque control modes occurs.
    Type: Application
    Filed: March 11, 2024
    Publication date: June 12, 2025
    Inventors: Ji Won Oh, Ho Wook Lee, Jeong Soo Eo
  • Patent number: 12325430
    Abstract: A method for controlling driving of a vehicle, can control driving of a vehicle so that handling responsiveness may be differentiated in correspondence to a vehicle driving mode, steering input information by a driver, etc. The method for controlling driving of a vehicle distributes a request torque command into a left wheel torque command and a right wheel torque command, corrects the distributed torque commands using a differential control amount according to a vehicle driving mode and steering input information by a driver, and then performs torque command follow control for controlling torque which is applied to the wheels based on the post-correction torque commands.
    Type: Grant
    Filed: January 13, 2023
    Date of Patent: June 10, 2025
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventor: Ji Won Oh
  • Patent number: 12325309
    Abstract: A method of controlling torque of a drive system of an electric vehicle includes determining, by a controller, required torque according to a vehicle driving state while the vehicle is driven, and determining a total torque command based on the determined required torque, and performing, by the controller, a front wheel and rear wheel torque distribution process on the total torque command, so that a front wheel torque command and a rear wheel torque command following the total torque command are determined.
    Type: Grant
    Filed: August 23, 2023
    Date of Patent: June 10, 2025
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventor: Ji Won Oh
  • Patent number: 12286127
    Abstract: A method for determining a driving state of a vehicle includes determining a torque command of a vehicle drive apparatus based on vehicle driving information collected during driving of the vehicle, determining an acceleration error defined as a difference between a reference longitudinal acceleration of the vehicle interlocked with the torque command and a measured longitudinal acceleration of the vehicle, determining an acceleration disturbance rate defined as a difference between an actual rotational acceleration of the vehicle drive and a reference drive apparatus rotational acceleration interlocked with the torque command based on the determined torque command, integrating the determined acceleration disturbance rate to determine the acceleration disturbance, and determining a current vehicle driving state of the vehicle based on the determined acceleration error, the determined acceleration disturbance rate and the acceleration disturbance.
    Type: Grant
    Filed: June 2, 2022
    Date of Patent: April 29, 2025
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventor: Ji Won Oh