Patents by Inventor Chang Koo

Chang Koo 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: 10120356
    Abstract: A method for verifying actuator control data includes a first operation of transmitting, by a host computer, a plant model to a simulator for verifying actuator control data, a second operation of transmitting, to an engine controller connected to an actuator, an engine simulation information signal of the plant model that is received from the simulator, a third operation of driving, through the engine controller, the actuator according to the engine simulation information signal, receiving, by the engine controller, a feedback signal transmitted from the actuator, transmitting the feedback signal to the host computer, and measuring control data, and a fourth operation of comparing the control data with target control data preset in the host computer and verifying whether the control data is abnormal.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: November 6, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventor: Bon Chang Koo
  • Publication number: 20180266338
    Abstract: Provided are an apparatus and a method for compensating for a fuel injection quantity in an engine of a vehicle. The apparatus for compensating for a fuel injection quantity may include: an information collector collecting status information of the vehicle; an oxygen sensor outputting a voltage corresponding to a concentration of oxygen in exhaust gases; a high pass filter (HPF) filtering the output voltage of the oxygen sensor; and a controller generating a reference value on the basis of the status information of the vehicle. In particular, the controller calculates an offset using the reference value and a signal obtained by high-pass filtering the output voltage, and compensates for a fuel injection quantity in each individual cylinder of the engine of the vehicle on the basis of the offset.
    Type: Application
    Filed: August 7, 2017
    Publication date: September 20, 2018
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Bon Chang KOO, Jung Hwan HAN
  • Patent number: 10077723
    Abstract: Provided are an apparatus and a method for compensating for a fuel injection quantity in an engine of a vehicle. The apparatus for compensating for a fuel injection quantity may include: an information collector collecting status information of the vehicle; an oxygen sensor outputting a voltage corresponding to a concentration of oxygen in exhaust gases; a high pass filter (HPF) filtering the output voltage of the oxygen sensor; and a controller generating a reference value on the basis of the status information of the vehicle. In particular, the controller calculates an offset using the reference value and a signal obtained by high-pass filtering the output voltage, and compensates for a fuel injection quantity in each individual cylinder of the engine of the vehicle on the basis of the offset.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: September 18, 2018
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Bon Chang Koo, Jung Hwan Han
  • Publication number: 20180254612
    Abstract: The present disclosure provides a method for manufacturing a surge absorbing device, the method comprising: providing an elongate ceramic tube having a hollow space defined therein and having open and opposite first and second end; forming a first plating layer and a second plating layer on the first end and the second end, respectively; placing a surge absorbing element within the hollow space within the ceramic tube; disposing first and second brazing rings on the first plating layer and the second plating layer, respectively; disposing first and second sealing electrodes on the first and second brazing rings respectively; and melting the first and second brazing rings in an inert gas atmosphere to attach the first and second sealing electrodes onto the first plating layer and the second plating layer, respectively.
    Type: Application
    Filed: August 10, 2016
    Publication date: September 6, 2018
    Applicants: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUN DATION, SMART ELECTRONICS INC.
    Inventors: Chang-Koo KIM, Hae-Min LEE, Doo Won KANG, Hyun Chang KIM
  • Publication number: 20180163655
    Abstract: Disclosed herein is a vehicle having improved engine startability using hardware wake-up period control by performing a vehicle state detection mode to which a battery voltage, an engine oil temperature, and an engine coolant temperature are applied by a controller in a key-off state of an engine, a wake-up fuel pressure control mode for determining whether a soaking time reaches a wake-up set time by the count of a key-off timer for 80 minutes, a pump operation control mode for operating a low-pressure fuel pump for approximately 1 second by the current supplied in response to a key-off output signal over the period of 80 minutes, and a wake-up repetition control mode for repeating a number of times the low-pressure fuel pump is operated to maximum 6 times.
    Type: Application
    Filed: October 3, 2017
    Publication date: June 14, 2018
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Bon-Chang KOO
  • Publication number: 20180166289
    Abstract: The present invention relates to a method for producing a super-hydrophobic surface, and to a stack having a super-hydrophobic surface prepared by the above method. The super-hydrophobic surface may be realized only by plasma etching and deposition. The super-hydrophobic surface according to the present invention has a very low work of adhesion less than or equal to 3 mJ/m2. This super-hydrophobic surface may be applied to various fields including self-cleaning surface, anti-fogging surface, automobile glass surface, and drug delivery device surface.
    Type: Application
    Filed: June 7, 2016
    Publication date: June 14, 2018
    Applicant: Industry-Academic Cooperation Foundation of Ajou University
    Inventors: Chang-Koo KIM, Sung-Woon CHO, Jun-Hyun KIM, Jeong-Geun BAK
  • Publication number: 20180059627
    Abstract: A method for verifying actuator control data includes a first operation of transmitting, by a host computer, a plant model to a simulator for verifying actuator control data, a second operation of transmitting, to an engine controller connected to an actuator, an engine simulation information signal of the plant model that is received from the simulator, a third operation of driving, through the engine controller, the actuator according to the engine simulation information signal, receiving, by the engine controller, a feedback signal transmitted from the actuator, transmitting the feedback signal to the host computer, and measuring control data, and a fourth operation of comparing the control data with target control data preset in the host computer and verifying whether the control data is abnormal.
    Type: Application
    Filed: December 27, 2016
    Publication date: March 1, 2018
    Inventor: Bon Chang KOO
  • Publication number: 20180016951
    Abstract: A control method for stability of an intermediate phase Continuously Variable Valve Timing (CVVT) system may include comparing an oil temperature of the intermediate phase CVVT system with a predetermined value, and interrupting an operation of controlling the CVVT system when the oil temperature is lower than the predetermined value, comparing an engine RPM with a predetermined value, and interrupting the operation of controlling the CVVT system when the engine RPM is lower than the predetermined value, and comparing an operating current of the CVVT system with a predetermined management value A when the operation of controlling the CVVT system is not interrupted.
    Type: Application
    Filed: June 14, 2017
    Publication date: January 18, 2018
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Bon-Chang KOO
  • Publication number: 20170358454
    Abstract: There is provided a method for manufacturing a flexible electrode, the method comprising: cleaning a plastic substrate; forming a metal-oxide seed layer on the plastic substrate by sputtering a metal oxide on the plastic substrate; and forming a metal plating layer on the metal oxide seed layer using an electroless plating.
    Type: Application
    Filed: June 7, 2017
    Publication date: December 14, 2017
    Applicant: Industry-Academic Cooperation Foundation of Ajou University
    Inventors: Chang-Koo KIM, Hae-Min LEE, Chang-Jin PARK
  • Patent number: 9784193
    Abstract: A method for preventing engine stall of a vehicle includes detecting, by a control portion, whether a purge control valve becomes short to ground or not, determining, by the control portion, how rich a fuel is that has flowed into the engine using an oxygen sensor when it is determined that the purge control valve becomes short to ground in the detecting step, and controlling, by the control portion, a target RPM of the engine to be increased when it is determined that the fuel is rich in the determining step.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: October 10, 2017
    Assignee: HYUNDAI MOTOR COMPANY
    Inventor: Bon Chang Koo
  • Patent number: 9768979
    Abstract: A controller area network (CAN) communication method for electronic devices of a vehicle includes: transmitting data using a data frame in which communication mode information designating high speed CAN communication processing or general CAN communication processing is inserted into a null bit or a reserved bit that is not used in a general CAN communication protocol; receiving the transmitted data; and processing the received data in a high speed CAN communication mode or a general CAN communication mode based on the communication mode information.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: September 19, 2017
    Assignee: Hyundai Motor Company
    Inventor: Bon Chang Koo
  • Publication number: 20170263463
    Abstract: There is provided a method for etching a silicon substrate, the method comprising: forming an etch mask on a silicon substrate; forming a first gas comprising a halogen-based gas, a fluorocarbon gas and oxygen; and etching the silicon substrate by generating a plasma on the silicon substrate using the first gas.
    Type: Application
    Filed: November 10, 2015
    Publication date: September 14, 2017
    Applicant: Industry-Academic Cooperation Foundation of Ajou University
    Inventors: Chang-Koo KIM, Sung-Woon CHO, Jun-Hyun KIM
  • Publication number: 20170167444
    Abstract: A method for preventing engine stall of a vehicle includes detecting, by a control portion, whether a purge control valve becomes short to ground or not, determining, by the control portion, how rich a fuel is that has flowed into the engine using an oxygen sensor when it is determined that the purge control valve becomes short to ground in the detecting step, and controlling, by the control portion, a target RPM of the engine to be increased when it is determined that the fuel is rich in the determining step.
    Type: Application
    Filed: June 9, 2016
    Publication date: June 15, 2017
    Inventor: Bon Chang KOO
  • Publication number: 20170117837
    Abstract: An apparatus for variably controlling an alternator is provided. The apparatus includes a controller that determines a state of an engine of a vehicle and calculates a target generation rate. An alternator generates electricity based on the target generation rate and produces generation power. The alternator also variably adjusts responsiveness to the generation based on the determination of the state of the engine and a battery is configured to be charged by the generation power.
    Type: Application
    Filed: August 9, 2016
    Publication date: April 27, 2017
    Inventors: Doo-Hyun Kim, Hyun Kim, Bon-Chang Koo
  • Patent number: 9566865
    Abstract: A method for diagnosing charging state may include a diagnostic trouble code generation step of generating a diagnostic trouble code (DTC) when the state for charging a battery from an alternator is abnormal in the state in which the alternator is operating to charge the battery while a vehicle is traveling, and then storing diagnostic trouble code in an ECU (Electronic Control Unit), and a diagnostic trouble code release step of deleting the diagnostic trouble code in the ECU when the state for charging the battery from the alternator is returned to be normal.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: February 14, 2017
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Seung-Bum Kim, Bon Chang Koo
  • Patent number: 9523325
    Abstract: Disclosed are a method and a system for diagnosing failure of a gasoline direct injection (GDI) engine that can diagnose a device (or part) causing failure through forcible driving control of a related device (or part) when failure occurs in the GDI engine. The method for diagnosing failure of a GDI engine may include verifying whether a failure code is output from an engine control unit that controls the engine, and diagnosing whether a fuel system device is in a failure state by forcibly driving the fuel system device of the engine with a set control value when the failure code is output from the engine control unit.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: December 20, 2016
    Assignee: Hyundai Motor Company
    Inventor: Bon-Chang Koo
  • Patent number: 9493345
    Abstract: The present invention provides a method for fabricating slanted copper nanorods. The method includes manufacturing a workpiece configured to include an etch stop layer on a wafer, placing the workpiece in a slanted position, and etching the slanted workpiece, forming a copper (Cu) layer on the slanted workpiece by plating, removing an over-plated portion from the copper layer, and removing a polysilicon (poly Si) excluding copper from the surface of the workpiece. According to the invention, copper nanorod structures having a uniform array can be fabricated in a large area at a high process yield compared to conventional methods. In addition, the angle and diameter of copper nanorods can be controlled as desired so that the applicability thereof can be greatly increased. Moreover, the present invention can be applied to processes for fabricating various devices, including semiconductor devices, MEMSs (microelectromechanical systems), optical devices, gas sensors, display devices, etc.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: November 15, 2016
    Assignee: Ajou University Industry-Academic Cooperation Foundation
    Inventors: Sung-Woon Cho, Chang-Koo Kim
  • Publication number: 20160218353
    Abstract: Disclosed is a method of preparing a metal oxide-graphene nanocomposite, including preparing a nanocomposite material, forming graphene flakes by pretreating the nanocomposite material, and hydrothermally synthesizing the pretreated nanocomposite material. A method of manufacturing an electrode using the metal oxide-graphene nanocomposite is also provided. According to this invention, the metal oxide-graphene nanocomposite is synthesized from inexpensive graphite through one-step processing using only a surfactant, in place of conventional methods using oxidants, reductants and high-temperature heat, thereby lowering the number of processing steps and processing costs. Also, in the fabrication of the electrode, low electrical resistance characteristic of graphene is applied as it is, in place of the conventional use of active material, conductive material and binder, thereby exhibiting desired processing efficiency without the addition of the conductive material.
    Type: Application
    Filed: July 31, 2014
    Publication date: July 28, 2016
    Applicant: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUN DATION
    Inventors: Chang Koo KIM, Sang Wook KIM, Gyoung Hwa JEONG, Hae Min LEE
  • Publication number: 20160160768
    Abstract: A method for preventing an engine stall by a virtual crank signal includes determining stability of the engine by measuring an operating time of the engine, storing a crank signal, with a virtual crank signal storing step, using a crank position sensor while a crank shaft makes one turn if it is determined that the stability of the engine is maintained, determining whether the crank position sensor is out of order, and controlling an engine RPM by the crank signal stored in the virtual crank signal storing step to perform idle driving of a vehicle at the time of a breakdown of the crank position sensor.
    Type: Application
    Filed: November 3, 2015
    Publication date: June 9, 2016
    Inventor: Bon Chang KOO
  • Publication number: 20160121816
    Abstract: A controller area network (CAN) communication method for electronic devices of a vehicle includes: transmitting data using a data frame in which communication mode information designating high speed CAN communication processing or general CAN communication processing is inserted into a null bit or a reserved bit that is not used in a general CAN communication protocol; receiving the transmitted data; and processing the received data in a high speed CAN communication mode or a general CAN communication mode based on the communication mode information.
    Type: Application
    Filed: April 21, 2015
    Publication date: May 5, 2016
    Inventor: Bon Chang Koo