Patents by Inventor Tomohiko Ota

Tomohiko Ota 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).

  • Vehicle, controller and control method therefor, and abnormality detection system for idle speed control device and abnormality determining method for idle speed control device
    Patent number: 7954473
    Abstract: A vehicle speed sensor detects a rotational speed of a rear wheel. A throttle valve is positioned downstream of an intake pipe. An idle speed control device controls the amount of air flowing through the intake pipe to perform an idle speed control. An electronic control unit (ECU) detects an abnormality of the idle speed control (ISC) device based on an intake pipe pressure. The ECU inhibits a rotational speed of the engine from increasing when an abnormality of the ISC device is determined. Precise detection of vehicle speed and suppression of increase of engine rotational speed resulting from an ISC abnormality is thereby achieved.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: June 7, 2011
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Tomohiko Ota
  • Vehicle, Controller and Control Method Therefor, and Abnormality Detection System for Idle Speed Control Device and Abnormality Determining Method for Idle Speed Control Device
    Publication number: 20080178838
    Abstract: A vehicle speed sensor detects a rotational speed of a rear wheel. A throttle valve is positioned downstream of an intake pipe. An idle speed control device controls the amount of air flowing through the intake pipe to perform an idle speed control. An electronic control unit (ECU) detects an abnormality of the idle speed control (ISC) device based on an intake pipe pressure. The ECU inhibits a rotational speed of the engine from increasing when an abnormality of the ISC device is determined. Precise detection of vehicle speed and suppression of increase of engine rotational speed resulting from an ISC abnormality is thereby achieved.
    Type: Application
    Filed: January 30, 2008
    Publication date: July 31, 2008
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Tomohiko OTA