Patents by Inventor Kil-Young Youn

Kil-Young Youn 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: 9428174
    Abstract: A method of forcibly charging a high-voltage battery using a motor and a Hybrid Starter Generator (HSG) is provided. The method forcibly charges the high-voltage battery with maximum charging power using the motor and the HSG simultaneously. Particularly, the method includes calculating maximum chargeable power for the high-voltage battery using three dimensional (3D) maximum charging power maps of the motor and the HSG and adjusting maximum charging power using energy integration during forced charging using the motor and the HSG simultaneously. Additionally, excessive temperature prevention logics are applied for protecting the motor and the HSG from an excessive temperature in a forced charging mode.
    Type: Grant
    Filed: December 13, 2014
    Date of Patent: August 30, 2016
    Assignee: Hyundai Motor Company
    Inventors: Jae Sang Lim, Gu Bae Kang, Young Un Kim, Kil Young Youn, Jeong Won Roh, Ji Wan Cha, Jin Ho Kim, Seong Yeop Lim
  • Patent number: 9421881
    Abstract: An apparatus for controlling charge of a battery includes an auxiliary battery, a vehicle controller configured to determine a control mode of the auxiliary battery according to driving conditions of a vehicle, a DC converter configured to measure a state of the auxiliary battery and use the measured state of the battery to perform battery current control of the auxiliary battery according to the determined control mode, and a high voltage battery configured to supply power to the DC converter for charging or discharging the auxiliary battery.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: August 23, 2016
    Assignee: HYUNDAI MOTOR COMPANY
    Inventor: Kil-Young Youn
  • Patent number: 9413279
    Abstract: An apparatus and a method for controlling a motor are provided. The apparatus for controlling a motor includes a temperature sensor that is configured to detect a temperature of an inverter, and a variable amplifier that is configured to variably set an amplification gain that corresponds to the detected temperature of the inverter and amplify and output a resolver signal output from a resolver based on the variably set amplification gain, based on an excitation signal. A controller is then configured to estimate a position of a motor rotor based on the amplified resolver signal to calculate a flux angle and an excitation signal generator is configured to generate the excitation signal that corresponds to the calculated flux angle and output the generated excitation signal to the resolver.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: August 9, 2016
    Assignee: Hyundai Motor Company
    Inventors: Jeong Won Rho, Young Un Kim, Jae Sang Lim, Kil Young Youn, Ji Wan Cha, Seong Min M. Kim, Jin Ho Kim, Gu Bae Kang
  • Publication number: 20160144691
    Abstract: A hybrid cooling system of a vehicle includes a first cooling system having an engine, a first radiator, and a first water pump. A second cooling system includes a PE system, a second radiator, and a second water pump. A first cooling passage connects the engine and the PE system. A second cooling passage connects the first radiator and the second radiator. A third cooling passage and a fourth cooling passage connect the first cooling passage and the second cooling passage. Three-way valves is provided in the third cooling passage and the fourth cooling passage, respectively, to enable integrated cooling or individual cooling by opening and closing of the three-way valves.
    Type: Application
    Filed: April 28, 2015
    Publication date: May 26, 2016
    Inventor: Kil Young YOUN
  • Publication number: 20160087561
    Abstract: An apparatus and a method for controlling a motor are provided. The apparatus for controlling a motor includes a temperature sensor that is configured to detect a temperature of an inverter, and a variable amplifier that is configured to variably set an amplification gain that corresponds to the detected temperature of the inverter and amplify and output a resolver signal output from a resolver based on the variably set amplification gain, based on an excitation signal. A controller is then configured to estimate a position of a motor rotor based on the amplified resolver signal to calculate a flux angle and an excitation signal generator is configured to generate the excitation signal that corresponds to the calculated flux angle and output the generated excitation signal to the resolver.
    Type: Application
    Filed: December 10, 2014
    Publication date: March 24, 2016
    Inventors: Jeong Won Rho, Young Un Kim, Jae Sang Lim, Kil Young Youn, Ji Wan Cha, Seong Min M. Kim, Jin Ho Kim, Gu Bae Kang
  • Publication number: 20160046279
    Abstract: The present disclosure provides a method of forcibly charging a high-voltage battery using a motor and a Hybrid Starter Generator (HSG) which is capable of forcibly charging the high-voltage battery with maximum charging power using the motor and the HSG simultaneously. The method does so by calculating maximum chargeable power for the high-voltage battery using three dimensional (3D) maximum charging power maps of the motor and the HSG, adjusting maximum charging power using energy integration during forced charging using the motor and the HSG simultaneously, and applying excessive temperature prevention logics for protecting the motor and the HSG from an excessive temperature in a forced charging mode.
    Type: Application
    Filed: December 13, 2014
    Publication date: February 18, 2016
    Inventors: Jae Sang Lim, Gu Bae Kang, Young Un Kim, Kil Young Youn, Jeong Won Roh, Ji Wan Cha, Jin Ho Kim, Seong Yeop Lim
  • Publication number: 20160031440
    Abstract: A method and system for controlling a hybrid vehicle are provided to supply oil pressure to a transmission using an electric oil pump. The method for controlling a hybrid vehicle including an engine, a driving motor, and an engine clutch connecting between the engine and the driving motor includes: detecting a failure of high voltage components for the hybrid vehicle including an air conditioner, a heater, and a low voltage DC-DC converter (LDC). In response to determining a failure of at least one of the high voltage components an operation of the high voltage components in a normal state are turned off. The electric oil pump is operated with a counter electromotive force generated from the driving motor by operating the driving motor with power of the engine while a speed (RPM) of the engine is maintained at a predetermined minimum demand speed or greater.
    Type: Application
    Filed: November 18, 2014
    Publication date: February 4, 2016
    Inventors: Kil Young Youn, Gu Bae Kang, Ji Wan Cha, Jinho Kim, Sang-Hwan Kim, Jae-Sang Lim
  • Patent number: 9233610
    Abstract: A method and apparatus that compensates for a velocity of a motor of fuel cell vehicle when a resolver is determined to have failed is provided. In particular, a wheel velocity sensor is configured to detect a wheel velocity of a driving wheel, and an ABS controller is configured to calculate an average wheel velocity and transmit the calculated average to a fuel cell controller (FCU). The FCU is configured to receive information related to the wheel velocity upon detecting that the resolver has failed, and control driving of the motor based on the data related to the wheel velocity so that the motor may maintain operation.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: January 12, 2016
    Assignee: Hyundai Motor Company
    Inventors: Kichang Kim, Kil Young Youn
  • Publication number: 20150183335
    Abstract: An apparatus for controlling charge of a battery includes an auxiliary battery, a vehicle controller configured to determine a control mode of the auxiliary battery according to driving conditions of a vehicle, a DC converter configured to measure a state of the auxiliary battery and use the measured state of the battery to perform battery current control of the auxiliary battery according to the determined control mode, and a high voltage battery configured to supply power to the DC converter for charging or discharging the auxiliary battery.
    Type: Application
    Filed: July 11, 2014
    Publication date: July 2, 2015
    Inventor: Kil-Young YOUN
  • Publication number: 20150167817
    Abstract: A control method and system for reducing tip-in shock includes fixing a wheel with a wheel brake of a vehicle when an engine of the vehicle starts. A motor position sensor value is detected when a motor connected to the wheel through a plurality of gears is operated forward by a forward torque and a motor position sensor value when the motor is operated backward by a backward torque, by applying the forward torque and the backward torque to the motor with the wheel being fixed. An entire backlash generated between the plurality of gears is calculated on the basis of the motor position sensor values. A driving current for driving the motor is applied to the motor in accordance with the calculated entire backlash.
    Type: Application
    Filed: August 18, 2014
    Publication date: June 18, 2015
    Inventors: Ki Chang KIM, Kil Young YOUN
  • Patent number: 9052006
    Abstract: A control method and system for reducing tip-in shock includes fixing a wheel with a wheel brake of a vehicle when an engine of the vehicle starts. A motor position sensor value is detected when a motor connected to the wheel through a plurality of gears is operated forward by a forward torque and a motor position sensor value when the motor is operated backward by a backward torque, by applying the forward torque and the backward torque to the motor with the wheel being fixed. An entire backlash generated between the plurality of gears is calculated on the basis of the motor position sensor values. A driving current for driving the motor is applied to the motor in accordance with the calculated entire backlash.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: June 9, 2015
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Ki Chang Kim, Kil Young Youn
  • Publication number: 20140172210
    Abstract: A method and apparatus that compensates for a velocity of a motor of fuel cell vehicle when a resolver is determined to have failed is provided. In particular, a wheel velocity sensor is configured to detect a wheel velocity of a driving wheel, and an ABS controller is configured to calculate an average wheel velocity and transmit the calculated average to a fuel cell controller (FCU). The FCU is configured to receive information related to the wheel velocity upon detecting that the resolver has failed, and control driving of the motor based on the data related to the wheel velocity so that the motor may maintain operation.
    Type: Application
    Filed: November 26, 2013
    Publication date: June 19, 2014
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Kichang Kim, Kil Young Youn
  • Patent number: 6710575
    Abstract: In order to diagnose a fail possibility and to compensate a charging state of a battery of an electric vehicle, by detecting an operating state of a battery while driving a vehicle that is equipped with a rechargeable battery, the present invention provides a method for controlling the charging state of a battery.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: March 23, 2004
    Assignee: Hyundai Motor Company
    Inventor: Kil-Young Youn
  • Publication number: 20020084768
    Abstract: In order to diagnose the fail possibility and to compensate a charging state of a battery of an electric vehicle, by detecting an operating state of a battery while driving a vehicle that is equipped with a rechargeable battery, the present invention provides a method for controlling the charging state of a battery.
    Type: Application
    Filed: December 11, 2001
    Publication date: July 4, 2002
    Inventor: Kil-Young Youn
  • Patent number: 5640076
    Abstract: A device for charging a battery with one of a direct current and an alternating current includes a power adapter for providing a power signal and a power signal determining unit. The power signal determining unit determines whether the power signal is an alternating current or a direct current and a power transmission route selector selects a first power transmission route for the direct current and a second power transmission route for the alternating current. A charger receives the power signal to charge the battery. A power selecting unit includes a unit for transmitting the power signal from the power adapter to the battery through the charger when the first power transmission route for the alternating current signal is selected. A unit for transmitting the power signal from the power adapter to the battery when the second power transmission route for the direct current signal is selected.
    Type: Grant
    Filed: December 7, 1994
    Date of Patent: June 17, 1997
    Assignee: Hyundai Motor Company
    Inventor: Kil Young Youn