Patents by Inventor Sven Ludwig

Sven Ludwig 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).

  • Publication number: 20220043945
    Abstract: A method for designing, configuring and maintaining a drive device with a central database provided for application programs used for designing, configuring and maintaining the drive device. Data are stored in the central database as temporal data and can be read and supplemented by the application programs. Configuration rules, dependent on the life cycle phase of the drive device, for an execution and/or an extent of a configuration change to the configuration of the drive device are defined.
    Type: Application
    Filed: September 17, 2019
    Publication date: February 10, 2022
    Applicant: Siemens Aktiengesellschaft
    Inventors: MICHAEL HEGMANN, MICHAEL LEIPOLD, SVEN LUDWIG KELLNER
  • Patent number: 11171592
    Abstract: In a method for operating an electric machine a first test signal is fed into the electric machine and a first response signal of the electric machine is measured. A first state variable for a rotor of a synchronous reluctance motor of the electric machine is determined as a function of the first response signal, and a second state variable for the rotor of the synchronous reluctance motor is determined. The first state variable and the second state variable are evaluated together.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: November 9, 2021
    Assignee: Siemens Aktiengesellschaft
    Inventors: Sven Ludwig Kellner, Luca Silvio Rattaro, Thilo Weigel, Ingo Geier
  • Publication number: 20200266747
    Abstract: In a method for operating an electric machine a first test signal is fed into the electric machine and a first response signal of the electric machine is measured. A first state variable for a rotor of a synchronous reluctance motor of the electric machine is determined as a function of the first response signal, and a second state variable for the rotor of the synchronous reluctance motor is determined. The first state variable and the second state variable are evaluated together.
    Type: Application
    Filed: September 18, 2018
    Publication date: August 20, 2020
    Applicant: Siemens Aktiengesellschaft
    Inventors: SVEN LUDWIG KELLNER, LUCA SILVIO RATTARO, THILO WEIGEL, INGO GEIER
  • Publication number: 20190097477
    Abstract: A synchronous reluctance motor includes a stator and a rotor, where a laminate section of the rotor has flux barriers, and where the rotor is formed with a high number of poles.
    Type: Application
    Filed: September 26, 2018
    Publication date: March 28, 2019
    Inventors: Sven Ludwig Kellner, Ingo Geier
  • Patent number: 6612641
    Abstract: A vehicle door with a door casing includes an inside door panel (1) of a shell-like design. The inside door panel (1) is closed by a replaceable outside door shell (2) toward the outside of the vehicle door. To achieve that moisture is prevented in a simple manner from entering the interior space of the vehicle from the door casing, the inside door panel (1) is connected from its side facing the outer shell (2) to a plastic support part. The plastic part is provided with fastening elements (13), which carry the door components to be arranged in the door casing. The structural elements (9, 10, 10′) of the vehicle door, which protrude into the interior space of the vehicle, are fastened to the inside door panel (1). The openings (5, 6) necessary in the inside door panel (1) for the structural elements (9, 10, 10′) protruding into the interior space of the vehicle are sealed, e.g., by the plastic support part (8).
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: September 2, 2003
    Assignee: Acts GmbH & Co. KG
    Inventors: Stephan Schütt, Nick Morbach, Sven Ludwig, Steffen Karl
  • Publication number: 20030097796
    Abstract: A vehicle door with a door casing includes an inside door panel (1) of a shell-like design. The inside door panel (1) is closed by a replaceable outside door shell (2) toward the outside of the vehicle door. To achieve that moisture is prevented in a simple manner from entering the interior space of the vehicle from the door casing, the inside door panel (1) is connected from its side facing the outer shell (2) to a plastic support part. The plastic part is provided with fastening elements (13), which carry the door components to be arranged in the door casing. The structural elements (9, 10, 10′) of the vehicle door, which protrude into the interior space of the vehicle, are fastened to the inside door panel (1). The openings (5, 6) necessary in the inside door panel (1) for the structural elements (9, 10, 10′) protruding into the interior space of the vehicle are sealed, e.g., by the plastic support part (8).
    Type: Application
    Filed: December 3, 2001
    Publication date: May 29, 2003
    Inventors: Stephan Schutt, Nick Morbach, Sven Ludwig, Steffen Karl