Patents by Inventor Andreas Kappmeier

Andreas Kappmeier 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 system for determining a phase shift between a phase current and a phase voltage
    Patent number: 11971436
    Abstract: A method and a system for determining a phase shift between a phase current and a phase voltage in an AC phase line of a converter. A method and a system for determining a phase shift between a phase current and a phase voltage in an AC phase line of a converter, in particular a converter of a system for inductive power transfer, wherein a phase current change dependent quantity is determined, wherein a voltage-specific reference time point is determined depending on the phase current change dependent quantity, wherein the phase current is determined, wherein a current-specific reference time point is determined depending on the phase current, wherein the phase shift is determined depending on the time difference between the voltage-specific reference time point and the current-specific reference time point.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: April 30, 2024
    Assignee: Bombardier Primove GmbH
    Inventors: Andreas Büming, Christian Salewski, Thomas Nikles, Andreas Kappmeier, Robert Czainski
  • Method and System For Determining a Phase Shift Between a Phase Current and a Phase Voltage
    Publication number: 20220011354
    Abstract: A method and a system for determining a phase shift between a phase current and a phase voltage in an AC phase line of a converter. A method and a system for determining a phase shift between a phase current (Iu, Iv, Iw) and a phase voltage (Uu, Uv, Uw) in an AC phase line (U, V, W) of a converter (5), in particular a converter (5) of a system for inductive power transfer, wherein a phase current change dependent quantity is determined, wherein a voltage-specific reference time point is determined depending on the phase current change dependent quantity, wherein the phase current (Iu, Iv, Iw) is determined, wherein a current-specific reference time point is determined depending on the phase current (Iu, Iv, Iw), wherein the phase shift is determined depending on the time difference between the voltage-specific reference time point and the current-specific reference time point.
    Type: Application
    Filed: December 18, 2019
    Publication date: January 13, 2022
    Inventors: Andreas Büming, Christian Salewski, Thomas Nikles, Andreas Kappmeier, Robert Czainski