Patents by Inventor Yuuki Abiru

Yuuki Abiru 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).

  • Continuously variable transmission controller
    Patent number: 6671601
    Abstract: A decision is made as to whether a vehicle is traveling in an uphill traveling mode or in a downhill traveling mode with reference to an incremental running resistance &Dgr;R determined on the basis of a running resistance that will act on the vehicle while the vehicle is traveling in a flat road traveling mode. A desired traction Fd for a full-open throttle state in which a throttle valve is fully open is set if the vehicle is in the uphill traveling mode by using the incremental running resistance &Dgr;R, and a desired traction Fd for a full-closed throttle state in which the throttle valve is fully closed is set if the vehicle is in the downhill traveling mode by using the incremental running resistance &Dgr;R. The desired traction Fd and an achieved traction F(t) in the full-open throttle state at a present traveling speed V are compared if the vehicle is in the uphill traveling mode.
    Type: Grant
    Filed: December 16, 1998
    Date of Patent: December 30, 2003
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventor: Yuuki Abiru
  • CONTINUOUSLY VARIABLE TRANSMISSION CONTROLLER
    Publication number: 20020062186
    Abstract: A decision is made as to whether a vehicle is traveling in an uphill traveling mode or in a downhill traveling mode with reference to an incremental running resistance &Dgr;R determined on the basis of a running resistance that will act on the vehicle while the vehicle is traveling in a flat road traveling mode. A desired traction Fd for a full-open throttle state in which a throttle valve is fully open is set if the vehicle is in the uphill traveling mode by using the incremental running resistance &Dgr;R, and a desired traction Fd for a full-closed throttle state in which the throttle valve is fully closed is set if the vehicle is in the downhill traveling mode by using the incremental running resistance &Dgr;R. The desired traction Fd and an achieved traction F(t) in the full-open throttle state at a present traveling speed V are compared if the vehicle is in the uphill traveling mode.
    Type: Application
    Filed: December 16, 1998
    Publication date: May 23, 2002
    Inventor: YUUKI ABIRU