Patents by Inventor Toshio OUCHI

Toshio OUCHI 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).

  • Publication number: 20210234490
    Abstract: A control method for a motor system, the motor system having a battery; a boost converter configured to increase DC voltage supplied by the battery; an inverter connected to the boost converter and configured to execute a conversion between DC power and AC power; and a motor generator connected to the inverter. The control method comprising: a limiting power determination step of determining a limiting power in response to an operating point of the motor generator such that an oscillation of a terminal voltage of the boost converter at a side of the inverter is suppressed; and a controlling step of controlling the operating point of the motor generator such that a passing power of the boost converter does not exceed the limiting power.
    Type: Application
    Filed: May 10, 2018
    Publication date: July 29, 2021
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Toshio OUCHI, Kenichi MORI, Yoshihiro KONDO
  • Publication number: 20210036614
    Abstract: A boost converter control method in one aspect of the present invention is the control method of the boost converter that boosts a voltage input from a power supply and supplies a boosted voltage to a load-side. The control method of the boost converter is securing an output electric power required according to an operation point of a motor connected to the load-side, calculating a lower limit voltage value at which the output voltage of the boost converter does not oscillate, setting a target output voltage of the boost converter to a value equal to or higher than the lower limit voltage, and controlling the boost converter so as to output a voltage according to the target output voltage.
    Type: Application
    Filed: April 10, 2018
    Publication date: February 4, 2021
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Kenichi MORI, Toshio OUCHI, Yoshihiro KONDO