Patents by Inventor Matthias Markmann

Matthias Markmann 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).

  • Electrically commutated motor and method for controlling said motor
    Patent number: 7646159
    Abstract: An electrically commutated motor comprises a plurality of stator phases and a rotor. Further, sensors for detecting the control deviation of the rotor in relation to the stator phases are provided. A phase control unit controls the stator phase rotary field depending on the detected control deviation. The phase control unit comprises a single-phase controller for a single-phase mode of operation, and a multiple-phase controller for a multiple-phase mode of operation. Further, a control deviation evaluation element is provided which evaluates the magnitude of the control deviation, and selects, depending on the evaluation result, the single-phase mode of operation or the multiple-phase mode of operation.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: January 12, 2010
    Assignee: Pierburg GmbH
    Inventors: Matthias Markmann, Benedikt Schmuelling, Waldemar Stephan
  • Electrically Commutated Motor and Method for Controlling Said Motor
    Publication number: 20080106226
    Abstract: An electrically commutated motor comprises a plurality of stator phases and a rotor. Further, sensors for detecting the control deviation of the rotor in relation to the stator phases are provided. A phase control unit controls the stator phase rotary field depending on the detected control deviation. The phase control unit comprises a single-phase controller for a single-phase mode of operation, and a multiple-phase controller for a multiple-phase mode of operation. Further, a control deviation evaluation element is provided which evaluates the magnitude of the control deviation, and selects, depending on the evaluation result, the single-phase mode of operation or the multiple-phase mode of operation.
    Type: Application
    Filed: February 10, 2006
    Publication date: May 8, 2008
    Inventors: Matthias Markmann, Benedikt Schmuelling, Waldemar Stephan