Patents by Inventor Hirotaka SHIRASAWA

Hirotaka SHIRASAWA 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).

  • Apparatus for controlling the fuel supply of an internal combustion engine
    Patent number: 9897016
    Abstract: On the basis of a decrease in a high-pressure detection value and a low-pressure detection value during fuel control using a CNG injector, an electronic control unit automatically switches the combustion control to combustion control using a gasoline injector even when the amount of CNG remaining is insufficient. When the first shutoff valve is forcibly switched to an closed state by inputting a forcible shutoff command of a first shutoff valve to a terminal and the combustion control using the CNG injector is performed, a switching process to the combustion control using the gasoline injector is inhibited regardless of the decrease in the high-pressure detection value and the low-pressure detection value.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: February 20, 2018
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Akito Onishi, Hirotaka Shirasawa
  • APPARATUS FOR CONTROLLING THE FUEL SUPPLY OF AN INTERNAL COMBUSTION ENGINE
    Publication number: 20160290249
    Abstract: On the basis of a decrease in a high-pressure detection value and a low-pressure detection value during fuel control using a CNG injector, an electronic control unit automatically switches the combustion control to combustion control using a gasoline injector even when the amount of CNG remaining is insufficient. When the first shutoff valve is forcibly switched to an closed state by inputting a forcible shutoff command of a first shutoff valve to a terminal and the combustion control using the CNG injector is performed, a switching process to the combustion control using the gasoline injector is inhibited regardless of the decrease in the high-pressure detection value and the low-pressure detection value.
    Type: Application
    Filed: November 21, 2014
    Publication date: October 6, 2016
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, Aisan Kogyo Kabushiki Kaisha
    Inventors: Akito ONISHI, Hirotaka SHIRASAWA