Patents by Inventor Jaehyeon LEE

Jaehyeon LEE 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: 11781822
    Abstract: A method of controlling a vehicle includes steps of: detecting a temperature of oil; detecting a temperature of a drive motor; identifying a target rotational speed of an oil pump corresponding to the detected temperature of the oil and the temperature of the drive motor; when the identified target rotational speed is less than a limit rotational speed, controlling an operation of the oil pump based on the identified target rotational speed; and when the identified target rotational speed is greater than or equal to a limit rotational speed, adjusting the identified target rotational speed based on a temperature gradient of the drive motor in a current period and a temperature gradient of the drive motor in a previous period and controlling the operation of the oil pump based on the adjusted target rotational speed.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: October 10, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: JaeHyeon Lee, Jiwan Cha
  • Publication number: 20210310755
    Abstract: A method of controlling a vehicle includes steps of: detecting a temperature of oil; detecting a temperature of a drive motor; identifying a target rotational speed of an oil pump corresponding to the detected temperature of the oil and the temperature of the drive motor; when the identified target rotational speed is less than a limit rotational speed, controlling an operation of the oil pump based on the identified target rotational speed; and when the identified target rotational speed is greater than or equal to a limit rotational speed, adjusting the identified target rotational speed based on a temperature gradient of the drive motor in a current period and a temperature gradient of the drive motor in a previous period and controlling the operation of the oil pump based on the adjusted target rotational speed.
    Type: Application
    Filed: November 19, 2020
    Publication date: October 7, 2021
    Inventors: JaeHyeon Lee, Jiwan Cha
  • Patent number: 11031887
    Abstract: A motor control device includes: a storage configured to store reference Lissajous values; and a controller configured to apply an excitation signal to a resolver; receive an output signal output from the resolver, to obtain a Lissajous value corresponding to the received output signal, to determine that an external noise is input when the obtained Lissajous value is different from the reference Lissajous values, and to control driving of a motor based on the obtained Lissajous value when the obtained Lissajous value is equal to any one of the reference Lissajous values. A vehicle having the motor control device may further include a battery configured to transmit power to the motor and to be charged by regenerative braking of the motor.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: June 8, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jiwan Cha, Han Hee Park, JaeHyeon Lee, Seongmin Kim, Hyunwoo Noh, Taeil Yoo
  • Publication number: 20200169198
    Abstract: A motor control device includes: a storage configured to store reference Lissajous values; and a controller configured to apply an excitation signal to a resolver; receive an output signal output from the resolver, to obtain a Lissajous value corresponding to the received output signal, to determine that an external noise is input when the obtained Lissajous value is different from the reference Lissajous values, and to control driving of a motor based on the obtained Lissajous value when the obtained Lissajous value is equal to any one of the reference Lissajous values. A vehicle having the motor control device may further include a battery configured to transmit power to the motor and to be charged by regenerative braking of the motor.
    Type: Application
    Filed: August 1, 2019
    Publication date: May 28, 2020
    Inventors: Jiwan CHA, Han Hee PARK, JaeHyeon LEE, Seongmin KIM, Hyunwoo NOH, Taeil YOO
  • Publication number: 20180168134
    Abstract: A transgenic mouse expressing inactivated human iduronate-2-sulphatase (IDS) and a method for improving agents for treating Hunter syndrome using the transgenic mouse are provided. The transgenic mouse expressing the inactivated human IDS, which has immune tolerance to IDS, does not cause an immune response to IDS which is an active component of the agents for treating Hunter syndrome, and thus the transgenic mouse may be effectively used to identify immunogenic factors other than the immunogenicity of the protein components of the agents.
    Type: Application
    Filed: December 20, 2017
    Publication date: June 21, 2018
    Applicant: MOGAM INSTITUTE FOR BIOMEDICAL RESEARCH
    Inventors: Chihwa KIM, Jaehyeon LEE, Eui-Cheol JO, Jung-Seob KIM