Patents by Inventor Hiroki Yoshimatsu

Hiroki Yoshimatsu 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).

  • Control apparatus, control method and engine control unit for variable cylinder internal combustion engine
    Patent number: 6840213
    Abstract: A control apparatus, a control method, and an engine control unit for a variable cylinder internal combustion engine are provided for appropriately performing any of an idling rotational speed control, a deceleration fuel-cut control, and an auxiliary machinery driving control irrespective of whether or not a cylinder pausing mechanism fails. The control apparatus for the variable cylinder internal combustion engine switchably operated in a full cylinder operation mode and a partial cylinder operation mode comprises an ECU. The ECU determines whether or not the cylinder pause mechanism fails, and sets a target idling rotational speed for use in the idling rotational speed control to a normal operation value when the cylinder pausing mechanism is normal and to a faulty operation value higher than the normal operation value when the cylinder pausing mechanism is faulty.
    Type: Grant
    Filed: May 3, 2004
    Date of Patent: January 11, 2005
    Assignee: Honda Motor Co., Ltd.
    Inventors: Shunji Takahashi, Hiroki Yoshimatsu, Toshiaki Ichouda
  • Control apparatus, control method and engine control unit for variable cylinder internal combustion engine
    Publication number: 20040221832
    Abstract: A control apparatus, a control method, and an engine control unit for a variable cylinder internal combustion engine are provided for appropriately performing any of an idling rotational speed control, a deceleration fuel-cut control, and an auxiliary machinery driving control irrespective of whether or not a cylinder pausing mechanism fails. The control apparatus for the variable cylinder internal combustion engine switchably operated in a full cylinder operation mode and a partial cylinder operation mode comprises an ECU. The ECU determines whether or not the cylinder pause mechanism fails, and sets a target idling rotational speed for use in the idling rotational speed control to a normal operation value when the cylinder pausing mechanism is normal and to a faulty operation value higher than the normal operation value when the cylinder pausing mechanism is faulty.
    Type: Application
    Filed: May 3, 2004
    Publication date: November 11, 2004
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Shunji Takahashi, Hiroki Yoshimatsu, Toshiaki Ichouda