Patents by Inventor Yuka Niikawa

Yuka Niikawa 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: 11524598
    Abstract: A vehicle control device is configured to perform timer charging, using preset start time and end time. The vehicle control device starts the timer charging of a battery mounted in a vehicle upon arrival of the start time, and ends the timer charging upon arrival of the end time. During the timer charging, power is supplied to the vehicle from a power supply device outside the vehicle through a charging cable. The vehicle control device is configured to: suspend the timer charging when the charging cable is disconnected during the timer charging; resume the suspended timer charging when predetermined resume conditions are met, the predetermined resume conditions including a condition in which the charging cable is reconnected after the timer charging is suspended and before the end time; and end) the suspended timer charging without waiting for the end time when the resume conditions are not met.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: December 13, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuka Niikawa, Yamato Niwa
  • Publication number: 20200156494
    Abstract: A vehicle control device is configured to perform timer charging, using preset start time and end time. The vehicle control device starts the timer charging of a battery mounted in a vehicle upon arrival of the start time, and ends the timer charging upon arrival of the end time. During the timer charging, power is supplied to the vehicle from a power supply device outside the vehicle through a charging cable. The vehicle control device is configured to: suspend the timer charging when the charging cable is disconnected during the timer charging; resume the suspended timer charging when predetermined resume conditions are met, the predetermined resume conditions including a condition in which the charging cable is reconnected after the timer charging is suspended and before the end time; and end) the suspended timer charging without waiting for the end time when the resume conditions are not met.
    Type: Application
    Filed: November 13, 2019
    Publication date: May 21, 2020
    Inventors: Yuka Niikawa, Yamato Niwa
  • Patent number: 9610849
    Abstract: A feeding connector that connects a vehicle with an external power receiving device when electric power is fed from the vehicle to the power receiving device is allowed to be fitted to a connecting portion to which a charging connector that connects the vehicle with an external feeding device is fitted when an electric storage device installed on the vehicle is charged with electric power from the feeding device, and, when the feeding connector is in a particular condition of fit with the connecting portion, an impedance of a particular signal path provided in the feeding connector falls within an impedance range for feeding which is set as a range of impedance different from an impedance range for charging which is set as a range of impedance of a signal path provided in the charging connector and corresponding to the particular signal path. A method for identifying the feeding connector, a system for identifying the feeding connector, and a feeding system using the feeding connector are also provided.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: April 4, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroki Sawada, Yasuo Suzuki, Yuka Niikawa
  • Publication number: 20140210449
    Abstract: An operating mode of a charging/supplying system in which a vehicle is connected with a first external device or a second external device via a connecting portion used in common in a charging mode in which an electric storage device installed on the vehicle is charged with electric power from the first external device and a supplying mode in which electric power is supplied from the vehicle to the second external device, and which is operable in a selected one of the charging mode and the supplying mode, is identified. More specifically, a plurality of detection values are detected from at least one electric connection channel provided between the vehicle and the first external device or the second external device via the connecting portion, and it is determined whether the operating mode of the charging/supplying system is the charging mode or the supplying mode, based on a combination of the plurality of detection values.
    Type: Application
    Filed: August 27, 2012
    Publication date: July 31, 2014
    Inventors: Shinji Ichikawa, Hiroki Sawada, Yasuo Suzuki, Yuka Niikawa
  • Publication number: 20140191569
    Abstract: A feeding connector that connects a vehicle with an external power receiving device when electric power is fed from the vehicle to the power receiving device is allowed to be fitted to a connecting portion to which a charging connector that connects the vehicle with an external feeding device is fitted when an electric storage device installed on the vehicle is charged with electric power from the feeding device, and, when the feeding connector is in a particular condition of fit with the connecting portion, an impedance of a particular signal path provided in the feeding connector falls within an impedance range for feeding which is set as a range of impedance different from an impedance range for charging which is set as a range of impedance of a signal path provided in the charging connector and corresponding to the particular signal path. A method for identifying the feeding connector, a system for identifying the feeding connector, and a feeding system using the feeding connector are also provided.
    Type: Application
    Filed: July 31, 2012
    Publication date: July 10, 2014
    Inventors: Hiroki Sawada, Yasuo Suzuki, Yuka Niikawa