Patents by Inventor Stefan Kolmorgen

Stefan Kolmorgen 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 and device for operating an electrical machine having separate excitation
    Patent number: 9531304
    Abstract: A method and a device for operating an electrical machine having separate excitation, especially a synchronous machine. With the aid of a sensor system, a variable characterizing a rotor temperature and/or a stator temperature are/is determined, and an excitation current and stator currents for the electrical machine are specified by a control unit as a function of the variable characterizing the rotor temperature and/or the stator temperature, at least in specifiable operating ranges.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: December 27, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Mercedes Herranz Gracia, Stefan Kolmorgen, Stefan Spannhake, Yves Challand, Daniel Raichle, Mario Beyer, Dragan Mikulec, Gunther Goetting, Alexander Scheidle
  • METHOD AND DEVICE FOR OPERATING AN ELECTRICAL MACHINE HAVING SEPARATE EXCITATION
    Publication number: 20140125268
    Abstract: A method and a device for operating an electrical machine having separate excitation, especially a synchronous machine. With the aid of a sensor system, a variable characterizing a rotor temperature and/or a stator temperature are/is determined, and an excitation current and stator currents for the electrical machine are specified by a control unit as a function of the variable characterizing the rotor temperature and/or the stator temperature, at least in specifiable operating ranges.
    Type: Application
    Filed: September 30, 2011
    Publication date: May 8, 2014
    Inventors: Mercedes Herranz Gracia, Stefan Kolmorgen, Stefan Spannhake, Yves Challand, Daniel Raichle, Mario Beyer, Dragan Mikulec, Gunther Goetting, Alexander Scheidle
  • Actuator and method for mounting an actuator
    Publication number: 20020163279
    Abstract: An actuator in the prior art includes a plug contact, which is disposed on a printed circuit board, and also includes a brush holder, which is not disposed on the printed circuit board but is electrically connected to it. This has the disadvantage of requiring additional electrical connections. In an actuator (1) of the invention, the brush holder (41) is loosely coupled to the printed circuit board (31) and secured to a housing (9), so that electrical connections of the brush holder (41) and printed circuit board (31) are produced simply and without additional means.
    Type: Application
    Filed: June 24, 2002
    Publication date: November 7, 2002
    Inventors: Michael Mueller, Peter Steuer, Robert Heitz, Stefan Kolmorgen