Patents by Inventor Yoshiaki Aritome

Yoshiaki Aritome 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).

  • Method and device for controlling internal combustion engine
    Patent number: 10934956
    Abstract: A method for controlling an internal combustion engine is provided, which includes defining a first area in which the engine operates in a stoichiometric combustion mode and a second area in which the engine operates in a lean combustion mode, on an operation map defined by the engine load and speed, and causing a controller to determine that an operation point on the operation map shifts from the first area to the second area based on signals from an accelerator opening sensor and a crank angle sensor, predict a length of time that the operation point stays in the second area, switch a combustion mode to the lean combustion mode when the predicted time is longer than a given period of time, and maintain the stoichiometric combustion mode when the predicted time is shorter than the given period of time.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: March 2, 2021
    Assignee: Mazda Motor Corporation
    Inventors: Taiga Kamiji, Takuo Hirano, Chikako Ohisa, Yoshiaki Aritome
  • METHOD AND DEVICE FOR CONTROLLING INTERNAL COMBUSTION ENGINE
    Publication number: 20200325841
    Abstract: A method for controlling an internal combustion engine is provided, which includes defining a first area in which the engine operates in a stoichiometric combustion mode and a second area in which the engine operates in a lean combustion mode, on an operation map defined by the engine load and speed, and causing a controller to determine that an operation point on the operation map shifts from the first area to the second area based on signals from an accelerator opening sensor and a crank angle sensor, predict a length of time that the operation point stays in the second area, switch a combustion mode to the lean combustion mode when the predicted time is longer than a given period of time, and maintain the stoichiometric combustion mode when the predicted time is shorter than the given period of time.
    Type: Application
    Filed: February 6, 2020
    Publication date: October 15, 2020
    Inventors: Taiga Kamiji, Takuo Hirano, Chikako Ohisa, Yoshiaki Aritome