Patents by Inventor Nobuyuki Edamatsu

Nobuyuki Edamatsu 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 device and control method for internal combustion engine
    Patent number: 10018140
    Abstract: Internal combustion engine has direct injection fuel injection valve and port injection fuel injection valve. A requested fuel injection amount is calculated according to an engine operation condition. When the requested fuel injection amount is in first operation region in which the minimum fuel injection amount of direct injection fuel injection valve is exceeded, a direct injection fuel injection valve fuel injection amount is adjusted based on the requested fuel injection amount and a fixed amount, while maintaining a port injection fuel injection valve fuel injection amount at the fixed amount. First operation region is at least a region in which the requested fuel injection amount exceeds the direct injection fuel injection valve minimum fuel injection amount. In first operation region, the port injection fuel injection valve fuel injection amount is fixed at the minimum fuel injection amount of port injection fuel injection valve.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: July 10, 2018
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Tadaki Mano, Takatoshi Saitou, Kunpei Tomioka, Nobuyuki Edamatsu, Kohei Kubota, Daisei Nagaoka, Kazuyuki Kogiso
  • Control Device and Control Method for Internal Combustion Engine
    Publication number: 20180135552
    Abstract: Internal combustion engine has direct injection fuel injection valve and port injection fuel injection valve. A requested fuel injection amount is calculated according to an engine operation condition. When the requested fuel injection amount is in first operation region in which the minimum fuel injection amount of direct injection fuel injection valve is exceeded, a direct injection fuel injection valve fuel injection amount is adjusted based on the requested fuel injection amount and a fixed amount, while maintaining a port injection fuel injection valve fuel injection amount at the fixed amount. First operation region is at least a region in which the requested fuel injection amount exceeds the direct injection fuel injection valve minimum fuel injection amount. In first operation region, the port injection fuel injection valve fuel injection amount is fixed at the minimum fuel injection amount of port injection fuel injection valve.
    Type: Application
    Filed: April 6, 2015
    Publication date: May 17, 2018
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Tadaki Mano, Takatoshi Saitou, Kunpei Tomioka, Nobuyuki Edamatsu, Kohei Kubota, Daisei Nagaoka, Kazuyuki Kogiso