Patents by Inventor Fernando Briz Del Blanco

Fernando Briz Del Blanco 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).

  • Torque estimating system for synchronous electric motor
    Patent number: 10072993
    Abstract: A torque estimating system for a synchronous electric motor having a permanent magnet includes: a superimposing unit configured to superimpose a voltage or current of a frequency different from a frequency of a fundamental wave driving the synchronous electric motor on at least a d-axis of the synchronous electric motor; a magnet temperature estimating unit configured to estimate a temperature of the permanent magnet from the superimposed voltage or current and a current or voltage obtained by the superimposing; and a torque estimating unit configured to estimate a torque of the synchronous electric motor from the estimated temperature of the permanent magnet.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: September 11, 2018
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: David Díaz Reigosa, Fernando Briz Del Blanco, Hideo Yoshida, Takashi Kato
  • Magnet temperature estimating system for synchronous electric motor
    Patent number: 9438145
    Abstract: A magnet temperature estimating system for a synchronous electric motor having a permanent magnet includes: a superimposing unit configured to superimpose a voltage or current of a frequency different from a frequency of a fundamental wave driving the synchronous electric motor on at least a d-axis of the synchronous electric motor; a calculator configured to calculate an impedance of the synchronous electric motor from the superimposed voltage or current and a current or voltage obtained by the superimposing; and a magnet temperature estimating unit configured to estimate a temperature of the permanent magnet on the basis of the calculated impedance.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: September 6, 2016
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: David Díaz Reigosa, Fernando Briz Del Blanco, Hideo Yoshida, Takashi Kato
  • TORQUE ESTIMATING SYSTEM FOR SYNCHRONOUS ELECTRIC MOTOR
    Publication number: 20150198491
    Abstract: A torque estimating system for a synchronous electric motor having a permanent magnet includes: a superimposing unit configured to superimpose a voltage or current of a frequency different from a frequency of a fundamental wave driving the synchronous electric motor on at least a d-axis of the synchronous electric motor; a magnet temperature estimating unit configured to estimate a temperature of the permanent magnet from the superimposed voltage or current and a current or voltage obtained by the superimposing; and a torque estimating unit configured to estimate a torque of the synchronous electric motor from the estimated temperature of the permanent magnet.
    Type: Application
    Filed: August 4, 2014
    Publication date: July 16, 2015
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: David DIAZ REIGOSA, Fernando Briz Del Blanco, Hideo Yoshida, Takashi Kato