Patents by Inventor Umerjan Sautto

Umerjan Sautto 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).

  • Computing method of engine intake air amount and air fuel ratio control method and apparatus using the same
    Patent number: 6968267
    Abstract: A computing method of an engine intake air amount for determining a fuel injection amount comprises a step of computing an engine intake amount in real time by using a relational expression between an engine speed and an intake manifold pressure expressed by Qc=kc(?a1N?a2P+a3NP+a4N2P+a5NP2) where Qc is an intake air amount of an engine cylinder, kc, a1, a2, a3, a4 and a5 are constants, N is an engine speed and P is an intake manifold pressure.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: November 22, 2005
    Assignee: Nikki Co., Ltd.
    Inventor: Umerjan Sautto
  • Computing method of engine intake air amount and air fuel ratio control method and apparatus using the same
    Publication number: 20050102092
    Abstract: A computing method of an engine intake air amount for determining a fuel injection amount comprises a step of computing an engine intake amount in real time by using a relational expression between an engine speed and an intake manifold pressure expressed by Qc=kc(?a1N?a2P+a3NP+a4N2P+a5NP2) where Qc is an intake air amount of an engine cylinder, kc, a1, a2, a3, a4 and a5 are constants, N is an engine speed and P is an intake manifold pressure.
    Type: Application
    Filed: September 15, 2004
    Publication date: May 12, 2005
    Inventor: Umerjan Sautto