Patents by Inventor Shigeki YOSHITAKE

Shigeki YOSHITAKE 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).

  • Abnormality determining valve control device and system
    Patent number: 10544729
    Abstract: A valve control device controls a valve drive mechanism on the basis of a degree-of-opening signal for a valve and a startup signal for an engine, and includes: a drive signal generating unit that, when it is determined on the basis of the startup signal that the engine is stated, generates a test drive signal for test-driving the valve before the generation of a normal drive signal associated with normal driving of the valve; and an abnormality determining unit that, on the basis of the degree-of-opening signal during the test driving, determines whether or not an abnormality has occurred in the drive mechanism. The drive signal generating unit stops generating the test drive signal and the normal drive signal when the abnormality determining unit determines that the abnormality has occurred in the drive mechanism.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: January 28, 2020
    Assignees: KEIHIN CORPORATION, HONDA MOTOR CO., LTD.
    Inventors: Sachio Hojo, Youichiro Shikine, Tetsuo Yamashita, Shigeki Yoshitake, Kensuke Yamamoto, Akihito Inoue
  • VALVE CONTROL DEVICE AND VALVE SYSTEM
    Publication number: 20180112592
    Abstract: A valve control device controls a valve drive mechanism on the basis of a degree-of-opening signal for a valve and a startup signal for an engine, and includes: a drive signal generating unit that, when it is determined on the basis of the startup signal that the engine is stated, generates a test drive signal for test-driving the valve before the generation of a normal drive signal associated with normal driving of the valve; and an abnormality determining unit that, on the basis of the degree-of-opening signal during the test driving, determines whether or not an abnormality has occurred in the drive mechanism. The drive signal generating unit stops generating the test drive signal and the normal drive signal when the abnormality determining unit determines that the abnormality has occurred in the drive mechanism.
    Type: Application
    Filed: March 24, 2016
    Publication date: April 26, 2018
    Applicants: KEIHIN CORPORATION, Honda Motor Co., Ltd.
    Inventors: Sachio HOJO, Youichiro SHIKINE, Tetsuo YAMASHITA, Shigeki YOSHITAKE, Kensuke YAMAMOTO, Akihito INOUE