Patents by Inventor Stephan DEMMERER

Stephan DEMMERER 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: 20240140248
    Abstract: A method for characterizing energy stored in a vehicle, where the energy is delivered from an energy source to an energy store of the vehicle, the method includes acquiring information on energy supplied, processing information on the energy in order to establish an energy class of the energy, and assigning the energy that is delivered to the energy store to an energy class. A charging device, a control unit, and a vehicle are also disclosed.
    Type: Application
    Filed: October 26, 2023
    Publication date: May 2, 2024
    Applicant: ZF Friedrichshafen AG
    Inventors: Stephan Demmerer, Christian Gürlich, Otmar Scharrer, Gerhard Müller, Johannes Ochsenreiter
  • Patent number: 11945292
    Abstract: An electric drive axle of a vehicle with a parking lock and with at least one electric drive with a drive gear of a drive shaft. The drive gear is coupled via at least one intermediate gear of an intermediate shaft to an output gear of a differential gear unit for driving at least one output shaft. For decoupling the electric drive, at least one claw shift element is associated with the drive shaft and/or with the intermediate shaft in such a way that the claw shift element is arranged upstream of the parking lock in power flow direction from electric drive to differential gear unit.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: April 2, 2024
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Kim Führer, Stephan Demmerer, Matthias Winkel, Johannes Winkler, Martin Ruider
  • Patent number: 11739798
    Abstract: The disclosure relates to a claw coupling for interlockingly connecting a first rotatable component to a second rotatable component, wherein a sliding sleeve is non-rotatably and axially slidably arranged on the first rotatable component and a coupling body is non-rotatably arranged on the second rotatable component, the sliding sleeve being axially movable for interlocking connection to the coupling body in order to connect the first component to the second component, at least one spring-loaded shifting ring being movably mounted, non-rotatably and axially relative to the sliding sleeve, on the sliding sleeve, and a damping chamber, formed in dependence on the relative motion, is provided in order to delay the axial motion. The disclosure further relates to an electrical drive axle of a vehicle having at least the claw coupling. In addition, the disclosure relates to a method for interlockingly connecting the first rotatable component to the second rotatable component via a claw coupling.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: August 29, 2023
    Assignee: ZF Friedrichshafen AG
    Inventors: Martin Ruider, Patrick Isele, Kim Führer, Marcel Müller, Matthias Winkel, Werner Herbert Brandwitte, Klaus Ventzke, Fernando Jesus Ramos Zuniga, Stephan Demmerer
  • Publication number: 20220196081
    Abstract: The disclosure relates to a claw coupling for interlockingly connecting a first rotatable component to a second rotatable component, wherein a sliding sleeve is non-rotatably and axially slidably arranged on the first rotatable component and a coupling body is non-rotatably arranged on the second rotatable component, the sliding sleeve being axially movable for interlocking connection to the coupling body in order to connect the first component to the second component, at least one spring-loaded shifting ring being movably mounted, non-rotatably and axially relative to the sliding sleeve, on the sliding sleeve, and a damping chamber, formed in dependence on the relative motion, is provided in order to delay the axial motion. The disclosure further relates to an electrical drive axle of a vehicle having at least the claw coupling. In addition, the disclosure relates to a method for interlockingly connecting the first rotatable component to the second rotatable component via a claw coupling.
    Type: Application
    Filed: March 5, 2020
    Publication date: June 23, 2022
    Applicant: ZF Friedrichshafen AG
    Inventors: Martin Ruider, Patrick Isele, Kim Führer, Marcel Müller, Matthias Winkel, Werner Herbert Brandwitte, Klaus Venizke, Fernando Jesus Ramos Zuniga, Stephan Demmerer
  • Publication number: 20210394601
    Abstract: An electric drive axle of a vehicle with a parking lock and with at least one electric drive with a drive gear of a drive shaft. The drive gear is coupled via at least one intermediate gear of an intermediate shaft to an output gear of a differential gear unit for driving at least one output shaft. For decoupling the electric drive, at least one claw shift element is associated with the drive shaft and/or with the intermediate shaft in such a way that the claw shift element is arranged upstream of the parking lock in power flow direction from electric drive to differential gear unit.
    Type: Application
    Filed: October 30, 2019
    Publication date: December 23, 2021
    Inventors: Kim FÜHRER, Stephan DEMMERER, Matthias WINKEL, Johannes WINKLER, Martin RUIDER