Patents by Inventor Ryosuke Ohsugi

Ryosuke Ohsugi 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).

  • Control device for rotating electric machine and method of controlling rotating electric machine
    Patent number: 8912742
    Abstract: An ECU executes a program including a step of detecting the rotation speed of a motor, a step of determining the diffusion width of carrier frequency, a step of determining the carrier frequency based on the determined diffusion width, a step of generating a carrier signal based on the determined carrier frequency, and a step of executing pulse width modulation based on an AC voltage command and the carrier signal.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: December 16, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Ryosuke Ohsugi
  • CONTROL DEVICE FOR ROTATING ELECTRIC MACHINE AND METHOD OF CONTROLLING ROTATING ELECTRIC MACHINE
    Publication number: 20120286716
    Abstract: An ECU executes a program including a step of detecting the rotation speed of a motor, a step of determining the diffusion width of carrier frequency, a step of determining the carrier frequency based on the determined diffusion width, a step of generating a carrier signal based on the determined carrier frequency, and a step of executing pulse width modulation based on an AC voltage command and the carrier signal.
    Type: Application
    Filed: February 3, 2010
    Publication date: November 15, 2012
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Ryosuke Ohsugi