Patents by Inventor Jeong-Soo Eo

Jeong-Soo Eo 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).

  • Publication number: 20230133240
    Abstract: A method of controlling wheel slip of a vehicle and an apparatus thereof, the method includes determining, by a controller, a torque command for a driving device configured to drive the vehicle based on vehicle operation information obtained by an operation information detector while the vehicle is traveling, obtaining, by the controller, real-time vertical load information of a left wheel and a right wheel of the vehicle while the vehicle is traveling based on the vehicle operation information collected in the vehicle, determining, by the controller, a threshold engagement torque for control of a limited slip differential from the obtained real-time vertical load information, comparing, by the controller, a real-time torque command determined in real time based on the vehicle operation information, with the determined threshold engagement torque, and controlling, by the controller, the limited slip differential to be engaged so that differential action of a differential is limited when the real-time torque c
    Type: Application
    Filed: October 6, 2022
    Publication date: May 4, 2023
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Ji Won OH, Jeong Soo EO
  • Patent number: 11628723
    Abstract: A method of controlling posture of a vehicle is provided to determine a minute tendency of understeer or oversteer of the vehicle and to control the posture of the vehicle when recognizing the minute tendency of the understeer or oversteer while driving the vehicle straight. The includes determining whether torque is applied to drive wheels while driving the vehicle and acquiring equivalent inertia information of a drive system in real time based on drive system operation information in response to determining that the torque is being applied to the drive wheels. The understeer or oversteer of the vehicle is determined from the equivalent inertia information obtained in real-time.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: April 18, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Ji Won Oh, Jeong Soo Eo
  • Patent number: 11628767
    Abstract: A method of playing a virtual after-burn sound in an electric vehicle is provided. The method includes acquiring driver tendency information generated based on information of music played in a mobile phone and collecting driving variable information for playing a virtual sound during operation of the electric vehicle. Additionally, characteristics of a virtual after-burn sound are determined based on the collected driving variable information. The characteristics of the virtual after-burn sound are corrected according to the acquired driver tendency information. An after-burn signal is generated for playing the virtual after-burn sound based on information about the corrected characteristics of the virtual after-burn sound and operation of sound equipment is adjusted according to the created after-burn signal such that a virtual after-burn sound discriminated according to the driver tendency is played and output from the sound equipment.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: April 18, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Ki Chang Kim, Jin Sung Lee, Jeong Soo Eo, Dong Chul Park, Tae Kun Yun, Ji Won Oh
  • Patent number: 11625959
    Abstract: A system and method for determining backlash in a driving system of a vehicle are provided. The system includes a motor speed sensor that detects a motor speed and a wheel speed sensor that detects a wheel speed. A speed difference determination unit receives the detected motor and wheel speeds and determines a rotational speed difference of the driving system. A torsion speed determination unit receives the determined rotational speed difference and determines a reference torsion speed for backlash determination of the driving system. A backlash determination unit receives the determined rotational speed difference and the determined reference torsion speed, determines a backlash speed corresponding to a difference between the rotational speed difference and the reference torsion speed, and determines whether backlash in the driving system occurs using the determined backlash speed.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: April 11, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Ji Won Oh, Jeong Soo Eo
  • Publication number: 20230035953
    Abstract: A method of determining a traveling state of a vehicle, such as passing over a speed bump, occurrence of wheel slip, or traveling on a slope, is determined in real time to prevent degradations in wheel slip control performance and to avoid unnecessarily malfunctions in a traction control system without compromise of wheel slip control performance. The method includes steps of: determining a torque command of a drive unit to apply torque to a drive wheel in accordance with vehicle driving information collected during traveling of the vehicle; determining an acceleration error in accordance with the determined torque command and information regarding a measured longitudinal acceleration of the vehicle measured by a first sensor; determining an acceleration disturbance rate in accordance with the determined torque command; and determining a current traveling state of the vehicle in accordance with the determined acceleration error and the determined acceleration disturbance rate.
    Type: Application
    Filed: July 19, 2022
    Publication date: February 2, 2023
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Ji Won Oh, Jeong Soo Eo
  • Patent number: 11565591
    Abstract: A method of generating a virtual internal combustion engine vibration in an electric vehicle includes collecting driving variable information, determining a virtual internal combustion engine vibration characteristic on the basis of the collected driving variable information, determining a vibration torque command having the determined virtual engine vibration characteristic, determining a final motor torque command using a basic motor torque command determined from the collected driving variable information and the determined vibration torque command, and controlling the operation of a vehicle driving motor according to the determined final motor torque command.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: January 31, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Ji Won Oh, Dong Chul Park, Jeong Soo Eo, Tae Kun Yun
  • Patent number: 11565694
    Abstract: A cruise control method for a hybrid vehicle is provided. The method includes detecting a preceding vehicle and estimating the speed of the preceding vehicle from the information input from a preceding vehicle detecting unit in the on state of a cruise mode and a PnG mode. An upper limit target vehicle speed and a lower limit target vehicle speed are determined from the estimated speed of the preceding vehicle. The driving source of the vehicle is operated to alternately repeat the acceleration (pulse phase) and deceleration (glide phase) of the vehicle between the determined upper limit target vehicle speed and lower limit target vehicle speed.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: January 31, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jeong Soo Eo, Sung Jae Kim, Ji Won Oh
  • Patent number: 11565710
    Abstract: Disclosed are a device and method for controlling a traveling characteristic of a vehicle. The device includes: a user terminal configured to configure and display a screen for a setting mode, on which a parameter value that determines drivability and traveling characteristic of the vehicle is displayed and from which a driver performs a change and a setting to the displayed parameter value; a controller configured to be provided in the vehicle, to receive a parameter value that results from the driver performing the change and the setting, from the user terminal, and to apply the received parameter value to control logic for controlling a traveling state of the vehicle; and a communication unit configured to be provided in the vehicle and to make a connection between the user terminal and the control unit in such a manner that transmission and reception of the parameter value are possible.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: January 31, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Sung Jae Kim, Jeong Soo Eo, Ji Won Oh
  • Publication number: 20230016272
    Abstract: A virtual sound provision apparatus for an electric vehicle includes a driving information detector configured to detect vehicle driving information for outputting a virtual driving sound, a microphone configured to detect an actual driving sound generated from the electric vehicle, a controller configured to determine a characteristic of a target sound based on an acceleration and deceleration driving pattern of a driver from an accelerator pedal input value and a brake pedal input value of the driver, and generating and outputting a sound control signal for outputting the virtual driving sound having the characteristic of the target sound based on the determined characteristic information of the target sound and characteristic information of the actual driving sound, and a sound device configured to output a virtual engine sound that simulates an engine sound from the electric vehicle at the time of acceleration and deceleration according to the sound control signal.
    Type: Application
    Filed: May 16, 2022
    Publication date: January 19, 2023
    Inventors: Ki Chang Kim, Jin Sung Lee, Ji Won Oh, Dong Chul Park, Kyoung Jin Chang, Tae Kun Yun, Jeong Soo Eo
  • Patent number: 11541876
    Abstract: The present disclosure provides an electronic stability control method for a vehicle for performing vehicular electronic stability control simply by adjusting driving force and braking power that are generated by a driving device of the vehicle without use of a driving force distributing method between front, rear, left, or right vehicle wheels. To this end, the vehicular electronic stability control method includes determining a vehicular state value indicating a driving state of a vehicle from information collected from the vehicle, comparing the determined vehicle state value with a first reference value, and controlling an operation of a driving device for generating driving force for driving the vehicle by the controller when the vehicle state value is greater than the first reference value to adjust driving force for preventing understeer or oversteer of the vehicle.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: January 3, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Ji Won Oh, Jeong Soo Eo
  • Patent number: 11529876
    Abstract: A control method of an electric vehicle is provided. The method includes generation of a virtual sensation of gear shifting of an electric vehicle capable of freely, directly changing and adjusting variables related to generation of the virtual sensation of gear shifting to provide drivers with preferred virtual sensation of gear shifting. The virtual sensation of gear shifting is generated according to driver's driving input values and vehicle conditions based on variable values related to the virtual sensation of gear shifting generation preset by a driver to simulate multi-speed gear shifting that the driver may sense when shifting in a vehicle having a multi-speed transmission, while driving an electric vehicle without the multi-speed transmission.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: December 20, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Ji Won Oh, Jeong Soo Eo
  • Patent number: 11524585
    Abstract: A method of controlling traveling of an electric vehicle is provided. The method includes generating a motor torque command using a basic torque command and a virtual gear-shift intervention torque for generating a feeling of real gear shifting, while an electric vehicle travels. A motor is operated for driving the electric vehicle according to the generated motor torque command to generate the feeling thereof. Ingenerating the feeling thereof, during at least a portion of time during which the feeling thereof is generated, boost control of the motor operation is performed such that a motor torque exceeding an allowable torque of the motor is generated, and thus the generation of the feeling thereof and the boost control are performed in conjunction with each other.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: December 13, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Ji Won Oh, Jeong Soo Eo
  • Patent number: 11427214
    Abstract: The present disclosure provides a method of displaying the driving characteristics of a current vehicle in comparison with those of a previous vehicle and synchronizing the driving characteristics of the current vehicle with those of the previous vehicle by changing driving-characteristic-related setup data of the current vehicle in response to a driver request. Accordingly, the driving characteristics of the current vehicle is synchronized with the driving characteristics of the previous vehicle, and thus even if a driver drives a completely different type of vehicle, a familiar sense of traveling and sense of driving is provided.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: August 30, 2022
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Ji Won Oh, Jeong Soo Eo, Sung Jae Kim
  • Patent number: 11407402
    Abstract: A driving torque command generating apparatus and method of operating a hybrid electric vehicle can obtain torsional state observation values using an engine speed, a motor speed, and a wheel speed detected by an engine speed detector, a motor speed detector, and a wheel speed detector, respectively, together with a motor torque command generated in a previous period, and generate an engine torque command and a motor torque command of a driving torque command based on a driving input value input by a driving input detector and the torsional state observation values.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: August 9, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Ji Won Oh, Young Joon Chang, Jeong Soo Eo, Youn Kwang Jung, Sung Jae Kim
  • Patent number: 11378184
    Abstract: A system and method for estimating a wheel speed of a vehicle are provided. The system includes wheel speed sensor that detects a rotation speed of a wheel of a vehicle and a motor speed sensor that detects a speed of the driving motor. A controller receives a signal of the wheel speed sensor, a signal of the motor speed sensor, and information regarding a gear stage indicating current gear stage status of the transmission, and estimates a wheel speed including direction information of wheel rotation.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: July 5, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Ji Won Oh, Jeong Soo Eo
  • Publication number: 20220203843
    Abstract: method of controlling torque of a vehicle driving device is provided. The method includes estimating speed of a driving system of a vehicle from vehicle driving information collected from the vehicle and calculating speed difference between actually measured speed of the driving system and the estimated speed of the driving system. A nominal rate limit value is determined according to the vehicle driving information and a required real-time rate correction amount is determined according to the calculated speed difference. A torque command variation is determined based on the determined nominal rate limit value and the determined required real-time rate correction amount. A torque command after correction in a previous control period is corrected by the determined torque command variation to determine a torque command after correction in a current control period.
    Type: Application
    Filed: September 22, 2021
    Publication date: June 30, 2022
    Inventors: Ji Won Oh, Jeong Soo Eo, Sung Jae Kim, Lee Hyoung Cho
  • Publication number: 20220185179
    Abstract: A method of playing a virtual after-burn sound in an electric vehicle is provided. The method includes acquiring driver tendency information generated based on information of music played in a mobile phone and collecting driving variable information for playing a virtual sound during operation of the electric vehicle. Additionally, characteristics of a virtual after-burn sound are determined based on the collected driving variable information. The characteristics of the virtual after-burn sound are corrected according to the acquired driver tendency information. An after-burn signal is generated for playing the virtual after-burn sound based on information about the corrected characteristics of the virtual after-burn sound and operation of sound equipment is adjusted according to the created after-burn signal such that a virtual after-burn sound discriminated according to the driver tendency is played and output from the sound equipment.
    Type: Application
    Filed: March 30, 2021
    Publication date: June 16, 2022
    Inventors: Ki Chang Kim, Jin Sung Lee, Jeong Soo Eo, Dong Chul Park, Tae Kun Yun, Ji Won Oh
  • Publication number: 20220153144
    Abstract: A control device and method of an electric vehicle for realizing virtual drive system sensibility is disclosed. A main objective is to provide the control device and method of the electric vehicle capable of realizing and providing differentiated driving sensibility that may be felt in other drive systems such as a drive system of an internal combustion engine vehicle. The control method includes determining a basic torque command, for controlling operation of a driving motor, from vehicle driving information collected by a controller while driving a vehicle; determining a virtual drive system torque command, which is a corrected torque command for realizing virtual drive system sensibility, from a determined basic torque command by using a virtual drive system model preset in the controller, and controlling torque of the driving motor by the controller according to a determined virtual drive system torque command.
    Type: Application
    Filed: June 22, 2021
    Publication date: May 19, 2022
    Inventors: Ji Won Oh, Jeong Soo Eo
  • Patent number: 11332150
    Abstract: A method and system for controlling a wheel slip of a vehicle without using a reference speed is provided. The system includes a speed detector that detects a speed of a driving device for operating the vehicle and a controller that determines a torque calibration command based on a torque command of the driving device, and a current speed and a past speed of the driving device detected by the speed detector. The torque command of the driving device is calibrated using the determined torque calibration command, and a driving device is operated based on the calibrated torque command.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: May 17, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Ji Won Oh, Jeong Soo Eo
  • Patent number: 11332143
    Abstract: A method for controlling a wheel slip of a vehicle is provided. The method includes estimating equivalent inertia information of a driving system based on operation information of the driving system during operation of a vehicle and subsequently, calculating the amount of calibration for calibrating a torque command of a driving device for driving the vehicle from the estimated equivalent inertia information of the driving system. The torque command of the driving device is calibrated using the calculated amount of calibration and subsequently the torque applied to a driving wheel is adjusted according to the calibrated torque command.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: May 17, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Ji Won Oh, Jeong Soo Eo