Patents by Inventor Yoshinari Imai

Yoshinari Imai 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).

  • Method and apparatus for controlling fuel injection quantity for an internal combustion engine equipped with a turbocharger
    Patent number: 6460514
    Abstract: It is checked whether or not a supercharged pressure Pb becomes equal to or greater than a predetermined value P0 to judge whether or not a mechanism for adjusting the supercharged pressure is failed. When it is judged that the mechanism for adjusting the supercharged pressure is not failed, the fuel injection quantity Tp of normal time is computed based upon the engine operation condition. When it is judged that the mechanism for adjusting the supercharged pressure is failed, on the other hand, the fuel injection quantity Tp of failed time is computed, which is smaller than the fuel injection quantity of normal time. The fuel injection is then controlled based upon either the computed fuel injection quantity Tp of normal time or the computed fuel injection quantity Tp of failed time.
    Type: Grant
    Filed: January 16, 2001
    Date of Patent: October 8, 2002
    Assignee: Nissan Diesel Motor Co., Ltd.
    Inventors: Yoshinari Imai, Yasutaka Ishibashi