Patents by Inventor Hironori Matsumori

Hironori Matsumori 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).

  • Fuel control system for internal combustion engine
    Patent number: 6199540
    Abstract: A method for deciding the combustion state of each cylinder on the basis of an ion current signal generated between gaps of an ignition plug in an internal combustion engine, and a fuel control system which reduces a fuel injection quantity while suppressing the combustion change of each cylinder and reduces a non-combustion composition in an engine exhaust gas after starting of engine.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: March 13, 2001
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hideaki Katashiba, Ryoji Nishiyama, Hironori Matsumori
  • Fuel control system for internal combustion engine
    Patent number: 6109242
    Abstract: A method for deciding the combustion state of each cylinder on the basis of an ion current signal generated between gaps of an ignition plug in an internal combustion engine, and a fuel control system which reduces a fuel injection quantity while suppressing the combustion change of each cylinder and reduces a non-combustion composition in an engine exhaust gas after starting of engine.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: August 29, 2000
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hideaki Katashiba, Ryoji Nishiyama, Hironori Matsumori
  • Exhaust gas recirculation control system for internal combustion engines
    Patent number: 6076502
    Abstract: An exhaust gas recirculation control system for internal combustion engines, comprising an exhaust gas recirculation passage for recirculating a part of an exhaust gas from an internal combustion engine into the engine; an exhaust gas recirculation control valve for controlling a flow rate of the exhaust gas flowing in the exhaust gas recirculation passage; an opening degree controller for controlling an opening degree of the exhaust gas recirculation control valve; an operating condition detector for detecting an operating condition of the engine; means for setting a target exhaust gas recirculation ratio depending on the detected operating condition; a combustion state detector for detecting a combustion state in at least one cylinder of the engine; means for finding an actual exhaust gas recirculation ratio of the engine based on the detected combustion state; and means for controlling the opening degree controller so as to bring the actual exhaust gas recirculation ratio to the target exhaust gas recircul
    Type: Grant
    Filed: March 17, 1998
    Date of Patent: June 20, 2000
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hideaki Katashiba, Hironori Matsumori, Hirofumi Ohuchi, Wataru Fukui, Yoichi Kadota, Ryoji Nishiyama
  • Control apparatus for internal combustion engine
    Patent number: 6073611
    Abstract: A control apparatus for an internal combustion engine comprises: driving state detecting means for detecting a driving state of the internal combustion engine based on detected information from various sensors; control calculating means for calculating a control parameter of the internal combustion engine in accordance with the driving state; combustion state detecting means for detecting a combustion state amount of at least one of cylinders of the internal combustion engine; fuel property calculating means for calculating a property of a fuel supplied to the internal combustion engine based on the driving state and the combustion state amount; and parameter correcting means for correcting the control parameter in accordance with the fuel property.
    Type: Grant
    Filed: February 3, 1998
    Date of Patent: June 13, 2000
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hirofumi Ohuchi, Hironori Matsumori, Wataru Fukui, Hideaki Katashiba, Takeshi Kitao
  • Fuel control system for internal combustion engine
    Patent number: 6006727
    Abstract: A method for deciding the combustion state of each cylinder on the basis of an ion current signal generated between gaps of an ignition plug in an internal combustion engine, and a fuel control system which reduces a fuel injection quantity while suppressing the combustion change of each cylinder and reduces a non-combustion composition in an engine exhaust gas after starting of engine.
    Type: Grant
    Filed: November 14, 1997
    Date of Patent: December 28, 1999
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hideaki Katashiba, Ryoji Nishiyama, Hironori Matsumori