Patents by Inventor Gerhard Quentel

Gerhard Quentel 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).

  • Method for determining the rotor position of a synchronous motor
    Patent number: 7309972
    Abstract: The rotor position of a synchronous motor is determined, in that for a plurality of current vectors distributed over one electrical rotation of the synchronous motor, the amount of the current vector which is necessary to attain a defined deflection of the rotor is determined. The position of the rotor may be calculated from the position of the minima of the amounts thus determined, taking into account the direction of rotation of the rotor. The engagement of a brake may ensure that grooving forces and machine vibrations play no role for the method to determine the rotor position.
    Type: Grant
    Filed: March 26, 2003
    Date of Patent: December 18, 2007
    Assignee: Dr. Johannes Heidenhain GmbH
    Inventors: Walter Kranitzky, Gerhard Quentel
  • Method for determining the rotor position of a synchronous motor
    Publication number: 20050174104
    Abstract: The rotor position of a synchronous motor is determined, in that for a plurality of current vectors distributed over one electrical rotation of the synchronous motor, the amount of the current vector which is necessary to attain a defined deflection of the rotor is determined. The position of the rotor may be calculated from the position of the minima of the amounts thus determined, taking into account the direction of rotation of the rotor. The engagement of a brake may ensure that grooving forces and machine vibrations play no role for the method to determine the rotor position.
    Type: Application
    Filed: March 26, 2003
    Publication date: August 11, 2005
    Inventors: Walter Kranitzky, Gerhard Quentel