Patents by Inventor Norbert FROEHLICH

Norbert FROEHLICH 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).

  • Patent number: 11592280
    Abstract: A method for compensating interference in a measured angle signal of a magnetic angle sensor of an electrical machine, wherein the method includes: receiving a measured angle signal, estimating a current error and/or a misalignment error in the measured angle signal, calculating an expected rotor angle from the measured angle signal, taking into account the estimated current error and/or the estimated misalignment error, such as during operation of the electrical machine. The present invention furthermore relates to a microcontroller for calculating interference in a measured angle signal of a magnetic angle sensor of an electrical machine, to an electrical machine having a magnetic angle sensor and a microcontroller and to a computer program product.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: February 28, 2023
    Assignee: VITESCO TECHNOLOGIES GMBH
    Inventors: Moritz Märgner, Aitor Cortabarria, Norbert Fröhlich
  • Publication number: 20200217640
    Abstract: A method for compensating interference in a measured angle signal of a magnetic angle sensor of an electrical machine, wherein the method includes: receiving a measured angle signal, estimating a current error and/or a misalignment error in the measured angle signal, calculating an expected rotor angle from the measured angle signal, taking into account the estimated current error and/or the estimated misalignment error, such as during operation of the electrical machine. The present invention furthermore relates to a microcontroller for calculating interference in a measured angle signal of a magnetic angle sensor of an electrical machine, to an electrical machine having a magnetic angle sensor and a microcontroller and to a computer program product.
    Type: Application
    Filed: March 19, 2020
    Publication date: July 9, 2020
    Applicant: Vitesco Technologies GMBH
    Inventors: Moritz Märgner, Aitor Cortabarria, Norbert Fröhlich
  • Patent number: 10394211
    Abstract: An electronic safety switching device comprising at least a first and a second signal processing channel to which input signals may be supplied for signal processing. The first and second signal processing channels provide processed output signals, wherein the first and the second signal processing channels process the supplied input signals redundantly with respect to one other. The first and the second signal processing channels are each formed as integrated circuits, wherein the first signal processing channel is arranged monolithically on a first semiconductor substrate, and the second signal processing channel is arranged monolithically on a second semiconductor substrate. Furthermore, the first and the second semiconductor substrates are combined into a stack to form a one-piece electronic component.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: August 27, 2019
    Assignee: PILZ GMBH & CO. KG
    Inventors: Thorsten Godau, Norbert Froehlich, Matthias Holzaepfel, Hans Schwenkel
  • Publication number: 20170315530
    Abstract: An electronic safety switching device comprising at least a first and a second signal processing channel to which input signals may be supplied for signal processing. The first and second signal processing channels provide processed output signals, wherein the first and the second signal processing channels process the supplied input signals redundantly with respect to one other. The first and the second signal processing channels are each formed as integrated circuits, wherein the first signal processing channel is arranged monolithically on a first semiconductor substrate, and the second signal processing channel is arranged monolithically on a second semiconductor substrate. Furthermore, the first and the second semiconductor substrates are combined into a stack to form a one-piece electronic component.
    Type: Application
    Filed: July 19, 2017
    Publication date: November 2, 2017
    Inventors: Thorsten GODAU, Norbert FROEHLICH, Matthias HOLZAEPFEL, Hans SCHWENKEL
  • Patent number: 6341364
    Abstract: A partition of an electrical circuit is formed in that the electrical circuit is mapped on a graph (102), and the nodes and/or edges of the graph are assigned weight values (103). The weight values describe a required computing outlay for the calculation of electrical descriptive parameters for the respective elements of the electrical circuit that is represented to the nodes and/or by the edges. A placement method is then applied to the elements of the electrical circuit (104). Next, a measure is calculated of a number, which arises on the basis of a partitioning, of cut edges and/or margin nodes for elements of the electrical circuit (105). The elements are grouped in partitions depending on the previously calculated measure (106).
    Type: Grant
    Filed: May 17, 1999
    Date of Patent: January 22, 2002
    Assignee: Siemens Aktiengesellschaft
    Inventors: Utz Wever, Qinghua Zheng, Norbert Fröhlich