Patents by Inventor Yuichiroh YAMANAKA

Yuichiroh YAMANAKA 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).

  • Patent number: 11794600
    Abstract: A vehicle is configured to be charged with power supplied from the outside. The vehicle includes a storage battery, an interface configured to present a driver with power information on a state of charge of the storage battery, a monitoring device configured to monitor the driver and detect a confirmation operation of the driver for the interface, and a control device configured to complete, when the state of charge of the storage battery reaches a predetermined value during charging, the charging. The control device determines the predetermined value based on the state of charge of the storage battery calculated according to a detection frequency of the confirmation operation by the monitoring device.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: October 24, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuichiroh Yamanaka, Keiji Kaita
  • Publication number: 20220055497
    Abstract: A vehicle is configured to be charged with power supplied from the outside. The vehicle includes a storage battery, an interface configured to present a driver with power information on a state of charge of the storage battery, a monitoring device configured to monitor the driver and detect a confirmation operation of the driver for the interface, and a control device configured to complete, when the state of charge of the storage battery reaches a predetermined value during charging, the charging. The control device determines the predetermined value based on the state of charge of the storage battery calculated according to a detection frequency of the confirmation operation by the monitoring device.
    Type: Application
    Filed: July 1, 2021
    Publication date: February 24, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuichiroh YAMANAKA, Keiji KAITA
  • Patent number: 10989123
    Abstract: A blowback air amount is an amount of air that is part of the air that has flowed into a combustion chamber and is blown back into an intake passage before an intake valve closes. If the blowback air amount increases, a controller causes a fuel injection valve to inject fuel by an amount increased with respect to a fuel amount for a case in which the blowback air amount remains constant. The controller sets an increase amount of fuel injected from the fuel injection valve to a greater value when the stoichiometric air-fuel ratio of the fuel injected from the fuel injection valve is small than when the stoichiometric air-fuel ratio of the fuel injected from the fuel injection valve is great.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: April 27, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshikazu Yamamoto, Kazuya Ohshima, Masaya Kubo, Yuichiroh Yamanaka
  • Publication number: 20200063666
    Abstract: A blowback air amount is an amount of air that is part of the air that has flowed into a combustion chamber and is blown back into an intake passage before an intake valve closes. If the blowback air amount increases, a controller causes a fuel injection valve to inject fuel by an amount increased with respect to a fuel amount for a case in which the blowback air amount remains constant. The controller sets an increase amount of fuel injected from the fuel injection valve to a greater value when the stoichiometric air-fuel ratio of the fuel injected from the fuel injection valve is small than when the stoichiometric air-fuel ratio of the fuel injected from the fuel injection valve is great.
    Type: Application
    Filed: July 30, 2019
    Publication date: February 27, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshikazu YAMAMOTO, Kazuya OHSHIMA, Masaya KUBO, Yuichiroh YAMANAKA
  • Patent number: 10550792
    Abstract: A fuel injection control device for an engine includes an ECU. The ECU is configured to: change a port injection ratio in accordance with an operation state of the engine; execute correction of the total fuel injection amount by reflecting a correction amount in a basic fuel injection amount depending on the operation state when the port injection ratio is changed; and when the ECU changes the port injection ratio and calculates a second correction amount that is the correction amount having one of the positive and negative values during the execution of the correction based on a first correction amount that is the correction amount having the other one of the positive and negative values, limit reflection of the first correction amount in the basic injection amount.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: February 4, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaya Kubo, Kazuya Ohshima, Yoshikazu Yamamoto, Yuichiroh Yamanaka
  • Publication number: 20190178195
    Abstract: A fuel injection control device for an engine includes an ECU. The ECU is configured to: change a port injection ratio in accordance with an operation state of the engine; execute correction of the total fuel injection amount by reflecting a correction amount in a basic fuel injection amount depending on the operation state when the port injection ratio is changed; and when the ECU changes the port injection ratio and calculates a second correction amount that is the correction amount having one of the positive and negative values during the execution of the correction based on a first correction amount that is the correction amount having the other one of the positive and negative values, limit reflection of the first correction amount in the basic injection amount.
    Type: Application
    Filed: October 19, 2018
    Publication date: June 13, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaya KUBO, Kazuya OHSHIMA, Yoshikazu YAMAMOTO, Yuichiroh YAMANAKA