Patents by Inventor Yasuyosi Toda

Yasuyosi Toda 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 unit for electric power steering
    Patent number: 7222694
    Abstract: An electric power steering control unit is provided which is capable of detecting a motor current stably irrespective of a temperature variation to improve steering feelings. In this control unit, a temperature detecting circuit located in the vicinity of a motor current detecting circuit detects the motor current detecting circuit, and a CPU makes reference to output characteristic data on motor current detection output to temperature detection output stored in an EEPROM to correct the motor current detection output on the basis of the temperature detection output so that the motor current detection output corrected reaches a target current value to a motor driving circuit, thus driving an electric motor which operates a steering mechanism secondarily.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: May 29, 2007
    Assignee: Denso Corporation
    Inventors: Yasuyosi Toda, Toshihisa Yamamoto, Naoki Matsuda
  • Control unit for electric power steering
    Publication number: 20040159489
    Abstract: An electric power steering control unit is provided which is capable of detecting a motor current stably irrespective of a temperature variation to improve steering feelings. In this control unit, a temperature detecting circuit located in the vicinity of a motor current detecting circuit detects the motor current detecting circuit, and a CPU makes reference to output characteristic data on motor current detection output to temperature detection output stored in an EEPROM to correct the motor current detection output on the basis of the temperature detection output so that the motor current detection output corrected reaches a target current value to a motor driving circuit, thus driving an electric motor which operates a steering mechanism secondarily.
    Type: Application
    Filed: February 12, 2004
    Publication date: August 19, 2004
    Applicant: DENSO CORPORATION
    Inventors: Yasuyosi Toda, Toshihisa Yamamoto, Naoki Matsuda