Patents by Inventor Sun Dong Kwun

Sun Dong Kwun 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: 20240157806
    Abstract: A embodiment method of attempting to minimize heat generation of a motor by lowering the heat generation of an electro mechanical brake (EMB) driving motor occurring in an anti-brake system (ABS) operation mode includes determining whether to enter the ABS operation mode in which the heat generation of the motor is to be minimized and in response to a determination to enter the ABS operation mode, initiating the ABS operation mode thereby lowering the heat generation of the EMB driving motor.
    Type: Application
    Filed: May 30, 2023
    Publication date: May 16, 2024
    Inventor: Sun-Dong Kwun
  • Patent number: 11199432
    Abstract: In a urea injection system of a vehicle, to detect the shortage of the cooling water by using an electric water pump (EWP) to cool a dosing injector during the running of the vehicle engine, the apparatus for detecting shortage of the cooling water in the vehicle includes a urea injector that injects urea into an exhaust pipe of the vehicle, a pump that cools the urea injector, and a controller that applies a reference current to the pump, measures a time taken until a revolutions per minute (RPM) of the pump reaches a reference RPM, and detects the shortage of the cooling water in the pump by comparing the measured time and a reference time.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: December 14, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Sun Dong Kwun
  • Publication number: 20190390994
    Abstract: In a urea injection system of a vehicle, to detect the shortage of the cooling water by using an electric water pump (EWP) to cool a dosing injector during the running of the vehicle engine, the apparatus for detecting shortage of the cooling water in the vehicle includes a urea injector that injects urea into an exhaust pipe of the vehicle, a pump that cools the urea injector, and a controller that applies a reference current to the pump, measures a time taken until a revolutions per minute (RPM) of the pump reaches a reference RPM, and detects the shortage of the cooling water in the pump by comparing the measured time and a reference time.
    Type: Application
    Filed: October 29, 2018
    Publication date: December 26, 2019
    Inventor: Sun Dong KWUN
  • Patent number: 9528403
    Abstract: A lubrication device of a high pressure pump for a common rail system, may include a first lubrication channel fluid-connecting a shaft chamber formed in a pump housing of the high pressure pump, and a low pressure pump, and a support lubrication channel formed through a shoe such that one end thereof is fluid-connected to the first lubrication channel and the other end thereof is fluid-connected to a friction portion where a roller and the shoe contact each other.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: December 27, 2016
    Assignee: Hyundai Motor Company
    Inventors: Sun Dong Kwun, Sung Il You, Chang Sun Hwang
  • Patent number: 9347445
    Abstract: A lubrication apparatus of a high pressure pump for a common rail system is configured such that a sufficient amount of lubrication fuel can be supplied from a low pressure pump to the frictional junction between a roller and a shoe within a short period of time, thereby efficiently improving the lubrication performance of the frictional junction.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: May 24, 2016
    Assignee: Hyundai Motor Company
    Inventors: Sun Dong Kwun, Sung Il You, Chang Sun Hwang
  • Publication number: 20150004012
    Abstract: A lubrication apparatus of a high pressure pump for a common rail system is configured such that a sufficient amount of lubrication fuel can be supplied from a low pressure pump to the frictional junction between a roller and a shoe within a short period of time, thereby efficiently improving the lubrication performance of the frictional junction.
    Type: Application
    Filed: October 22, 2013
    Publication date: January 1, 2015
    Applicant: Hyundai Motor Company
    Inventors: Sun Dong Kwun, Sung Il You, Chang Sun Hwang
  • Publication number: 20140299093
    Abstract: A lubrication device of a high pressure pump for a common rail system, may include a first lubrication channel fluid-connecting a shaft chamber formed in a pump housing of the high pressure pump, and a low pressure pump, and a support lubrication channel formed through a shoe such that one end thereof is fluid-connected to the first lubrication channel and the other end thereof is fluid-connected to a friction portion where a roller and the shoe contact each other.
    Type: Application
    Filed: October 23, 2013
    Publication date: October 9, 2014
    Applicant: Hyundai Motor Company
    Inventors: Sun Dong Kwun, Sung II You, Chang Sun Hwang
  • Publication number: 20140165957
    Abstract: A lubrication apparatus of a high pressure pump for a common rail system can improve lubrication performance for a friction portion M1 between a roller 12 and a shoe by supplying a large amount of lubricating fuel, which is supplied from a low pressure pump 24, to the friction portion M1 for a short time.
    Type: Application
    Filed: May 8, 2013
    Publication date: June 19, 2014
    Applicant: Hyundai Motor Company
    Inventors: Sun Dong Kwun, Sung il You, Chang Sun Hwang