Patents by Inventor Heo Chang MOO

Heo Chang MOO 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).

  • Fail determination device for vehicle automatic transmissions and control device for vehicle automatic transmissions
    Patent number: 10591053
    Abstract: A failure judgment device of an automatic transmission includes: a first abnormality judging section configured to judge a power supply fault abnormality or a breaking abnormality of the solenoid, from a selected shift stage and a state of the transmission mechanism, after the detection of the electric abnormality; and a second abnormality judging section configured to judge the power supply abnormality or the breaking abnormality of the solenoid, from the monitor current value when the solenoid valve is switched to an OFF state, after the detection of the electric abnormality, when one of the first abnormality judging section and the second abnormality judging section judges the power supply fault abnormality or the breaking abnormality, the judgement result being outputted.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: March 17, 2020
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventors: Hajime Tasaka, Youji Itou, Masahiro Hamano, Naonori Iizuka, Norihira Amano, Heo Chang Moo
  • FAIL DETERMINATION DEVICE FOR VEHICLE AUTOMATIC TRANSMISSIONS AND CONTROL DEVICE FOR VEHICLE AUTOMATIC TRANSMISSIONS
    Publication number: 20180106368
    Abstract: A failure judgment device of an automatic transmission includes: a first abnormality judging section configured to judge a power supply fault abnormality or a breaking abnormality of the solenoid, from a selected shift stage and a state of the transmission mechanism, after the detection of the electric abnormality; and a second abnormality judging section configured to judge the power supply abnormality or the breaking abnormality of the solenoid, from the monitor current value when the solenoid valve is switched to an OFF state, after the detection of the electric abnormality, when one of the first abnormality judging section and the second abnormality judging section judges the power supply fault abnormality or the breaking abnormality, the judgement result being outputted.
    Type: Application
    Filed: February 17, 2016
    Publication date: April 19, 2018
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Hajime TASAKA, Youji ITOU, Masahiro HAMANO, Naonori IIZUKA, Norihira AMANO, Heo Chang MOO