Patents by Inventor Yoshitomo Kono

Yoshitomo Kono 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 system for internal combustion engine
    Patent number: 9181894
    Abstract: A control system for an internal combustion engine having a throttle valve disposed in an intake passage of the engine is provided. A wide-open intake air amount, which is an intake air amount corresponding to a state where the throttle valve is fully opened, is calculated according to the engine rotational speed, and a theoretical intake air amount, which is an intake air amount corresponding to a state where no exhaust gas of the engine is recirculated to a combustion chamber of the engine, is calculated according to the wide-open intake air amount and the intake pressure. An intake air amount of the engine is detected or estimated, and an amount of the evaporative fuel/air mixture supplied through the evaporative fuel passage to the intake passage is calculated. An intake gas amount is calculated by correcting the intake air amount using the evaporative fuel/air mixture amount, and an exhaust gas recirculation ratio is calculated using the theoretical intake air amount and the intake gas amount.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: November 10, 2015
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Seiichiro Irie, Hiroshi Kubo, Yoshitomo Kono, Hiroaki Tone, Toshifumi Hiraboshi, Junpei Yamamoto, Hirotaka Komatsu
  • CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE
    Publication number: 20130245922
    Abstract: A control system for an internal combustion engine having a throttle valve disposed in an intake passage of the engine is provided. A wide-open intake air amount, which is an intake air amount corresponding to a state where the throttle valve is fully opened, is calculated according to the engine rotational speed, and a theoretical intake air amount, which is an intake air amount corresponding to a state where no exhaust gas of the engine is recirculated to a combustion chamber of the engine, is calculated according to the wide-open intake air amount and the intake pressure. An intake air amount of the engine is detected or estimated, and an amount of the evaporative fuel/air mixture supplied through the evaporative fuel passage to the intake passage is calculated. An intake gas amount is calculated by correcting the intake air amount using the evaporative fuel/air mixture amount, and an exhaust gas recirculation ratio is calculated using the theoretical intake air amount and the intake gas amount.
    Type: Application
    Filed: October 26, 2011
    Publication date: September 19, 2013
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Seiichiro Irie, Hiroshi Kubo, Yoshitomo Kono, Hiroaki Tone, Toshifumi Hiraboshi, Junpei Yamamoto, Hirotaka Komatsu
  • CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE
    Publication number: 20120290195
    Abstract: A control system for an internal combustion engine having a throttle valve disposed in an intake passage of the engine is provided. A wide-open intake air amount, which is an intake air amount corresponding to a state where the throttle valve is fully opened, is calculated according to the engine rotational speed, and a theoretical intake air amount, which is an intake air amount corresponding to a state where no exhaust gas of the engine is recirculated to a combustion chamber of the engine, is calculated according to the wide-open intake air amount and the intake pressure. An actual intake air amount of the engine is detected or estimated, and an exhaust gas recirculation ratio is calculated using the theoretical intake air amount and the actual intake air amount. The engine is controlled using the calculated exhaust gas recirculation ratio.
    Type: Application
    Filed: September 24, 2010
    Publication date: November 15, 2012
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Seiichiro Irie, Yoshitomo Kono, Hirotaka Komatsu, Hiroaki Tone, Junpei Yamamoto, Hiroshi Kubo, Toshifumi Hiraboshi