Patents by Inventor Kwang Yeon KIM

Kwang Yeon KIM 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: 20240044669
    Abstract: An apparatus configured to prevent misrecognition of an object in a vehicle and a method therefor are provided. The apparatus may comprise a sensor module configured to collect vehicle data and at least one processor electrically connected to the sensor module. The at least one processor may be configured to set a first region through which a moving object is unable to pass, based on the vehicle data collected by means of the sensor module and map data and removes noise corresponding to at least one moving object, when the at least one moving object is detected in the first region. In addition, various embodiments recognized through the specification are possible.
    Type: Application
    Filed: February 9, 2023
    Publication date: February 8, 2024
    Inventors: Jae Hwan Jang, Seo Hyeon Park, Jeong Am Seo, Kwang Yeon Kim, Young Min Han, Sung Yeon Ko
  • Patent number: 8971067
    Abstract: An output current distortion compensating apparatus in an inverter is disclosed, the inverter including an inverter controller generating a PWM signal for controlling a PWM voltage generator, wherein the inverter controller includes a first dead time compensation voltage generator generating a compensation voltage based on an output current polarity of each phase in the inverter, and a second dead time compensation voltage generator generating a compensation voltage based on an output current waveform of each phase in the inverter, and wherein a first dead time compensation voltage outputted from the first dead time compensation voltage generator and a second dead time compensation voltage outputted from the second dead time compensation voltage generator are added to generate a final dead time compensation voltage, thereby preventing occurrence of hunting phenomenon in which a current is greatly fluctuated.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: March 3, 2015
    Assignee: LSIS Co., Ltd.
    Inventor: Kwang Yeon Kim
  • Patent number: 8664898
    Abstract: Provided are a device and method of stopping an induction motor. The includes: a frequency commanding unit for generating an operating frequency corresponding to a rotational speed command of the induction motor; a q-axis and d-axis V/F converter for outputting a first q-axis voltage (Vq1) proportional to the generated operating frequency and a first d-axis voltage (Vd1) proportional to a 0 frequency; a q-axis PI current controller for outputting a second q-axis voltage (Vq2) for stopping the induction motor when the operating frequency reaches a stopping frequency; a d-axis PI current controller for outputting a second d-axis voltage (Vd2) for stopping the induction motor when the operating frequency reaches the stopping frequency; and a selection unit for selecting and outputting the first q-axis and d-axis voltages (Vq1 and Vd1) or the second q-axis and d-axis voltages (Vq2 and Vd2) according to the operating frequency generated by the frequency commanding unit.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: March 4, 2014
    Assignee: LSIS Co., Ltd.
    Inventor: Kwang Yeon Kim
  • Publication number: 20120229058
    Abstract: Provided are a device and method of stopping an induction motor. The includes: a frequency commanding unit for generating an operating frequency corresponding to a rotational speed command of the induction motor; a q-axis and d-axis V/F converter for outputting a first q-axis voltage (Vq1) proportional to the generated operating frequency and a first d-axis voltage (Vd1) proportional to a 0 frequency; a q-axis PI current controller for outputting a second q-axis voltage (Vq2) for stopping the induction motor when the operating frequency reaches a stopping frequency; a d-axis PI current controller for outputting a second d-axis voltage (Vd2) for stopping the induction motor when the operating frequency reaches the stopping frequency; and a selection unit for selecting and outputting the first q-axis and d-axis voltages (Vq1 and Vd1) or the second q-axis and d-axis voltages (Vq2 and Vd2) according to the operating frequency generated by the frequency commanding unit.
    Type: Application
    Filed: March 5, 2012
    Publication date: September 13, 2012
    Applicant: LSIS CO., LTD
    Inventor: KWANG YEON KIM
  • Publication number: 20110273914
    Abstract: An output current distortion compensating apparatus in an inverter is disclosed, the inverter including an inverter controller generating a PWM signal for controlling a PWM voltage generator, wherein the inverter controller includes a first dead time compensation voltage generator generating a compensation voltage based on an output current polarity of each phase in the inverter, and a second dead time compensation voltage generator generating a compensation voltage based on an output current waveform of each phase in the inverter, and wherein a first dead time compensation voltage outputted from the first dead time compensation voltage generator and a second dead time compensation voltage outputted from the second dead time compensation voltage generator are added to generate a final dead time compensation voltage, thereby preventing occurrence of hunting phenomenon in which a current is greatly fluctuated.
    Type: Application
    Filed: April 1, 2011
    Publication date: November 10, 2011
    Inventor: Kwang Yeon KIM