Patents by Inventor Hee Rak AHN

Hee Rak AHN 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: 10396647
    Abstract: A converter controlling device for a hybrid vehicle and a converter controlling method for a hybrid vehicle. A monitor monitors a state of charge (SoC) of a low voltage battery, a SoC of a high voltage battery, and a load value of an electronic load. A comparator compares a level of the SoC of the low voltage battery, a level of the SoC of the high voltage battery, and the load value of the electronic load with a first charging threshold value, a second charging threshold value, and a load threshold value. A determiner determines whether to adjust an output control value of a converter. A control value adjuster decreases the output control value of the converter to be lower than a level during normal control or increases the output control value of the converter to be higher than the level during the normal control.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: August 27, 2019
    Assignee: MANDO CORPORATION
    Inventors: Hee Rak Ahn, In Gyu Jang
  • Publication number: 20180102702
    Abstract: A converter controlling device for a hybrid vehicle and a converter controlling method for a hybrid vehicle. A monitor monitors a state of charge (SoC) of a low voltage battery, a SoC of a high voltage battery, and a load value of an electronic load. A comparator compares a level of the SoC of the low voltage battery, a level of the SoC of the high voltage battery, and the load value of the electronic load with a first charging threshold value, a second charging threshold value, and a load threshold value. A determiner determines whether to adjust an output control value of a converter. A control value adjuster decreases the output control value of the converter to be lower than a level during normal control or increases the output control value of the converter to be higher than the level during the normal control.
    Type: Application
    Filed: October 4, 2017
    Publication date: April 12, 2018
    Inventors: Hee Rak AHN, In Gyu Jang
  • Publication number: 20170067433
    Abstract: Disclosed herein is an idle stop control system including an information collection unit, a signal processing unit, and an engine control unit. The information collection unit collects information about idle stop control of an engine. The signal processing unit checks whether or not to satisfy a condition of idle stop control based on the information about idle stop control, and estimates a first cost loss incurred when a start-up state is maintained for an expected time of idle stop, and a second cost loss incurred during restart after the expected time of idle stop. The engine control unit controls an idle stop of the engine when the second cost loss is less than the first cost loss.
    Type: Application
    Filed: September 6, 2016
    Publication date: March 9, 2017
    Inventor: Hee Rak AHN