Patents by Inventor Tobias Zöllner

Tobias Zöllner 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: 20240298524
    Abstract: The present invention relates to an electrically doped semiconducting material comprising at least one metallic element as n-dopant and at least one electron transport matrix compound comprising at least one phosphine oxide group, a process for its preparation, and an electronic device comprising the electrically doped semiconducting material.
    Type: Application
    Filed: April 10, 2024
    Publication date: September 5, 2024
    Inventors: Omrane Fadhel, Carsten Rothe, Jan Birnstock, Ansgar Werner, Kai Gilge, Jens Angermann, Mike Zöllner, Francisco Bloom, Thomas Rosenow, Tobias Canzler, Tomas Kalisz, Ulrich Denker
  • Patent number: 9840255
    Abstract: A method provides for operating a drive train having several drive assemblies, a transmission and an output A first drive assembly acts on a first transmission shaft of the transmission, and a second drive assembly acts on a second transmission shaft. The transmission includes several shift elements, whereas an output torque depending on a driver's requested torque is provided at the output. For the opening of a shift element the shift element is placed without load. The probability of a gearshift request is determined on the control side by a shifting strategy.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: December 12, 2017
    Assignee: ZF Friedrichshafen AG
    Inventors: Tobias Zöllner, Karl Franz, Anatol Weidenbach
  • Patent number: 9457646
    Abstract: A method is provided for operating a drive train having drive units, one transmission, and one output. A first drive unit acts on a first transmission shaft of the transmission, and a second drive unit acts on a second transmission shaft. The transmission comprises several shift elements, whereas, at the output, an output torque that depends on the torque required by the driver is provided. For the opening of a shift element, the shift element is positioned in a load-free manner. For the load-free positioning of the shift element, target torques are calculated for the first and the second drive unit, by means of which, while maintaining the torque required by the driver at the output, the shift element is positioned in a load-free manner. There is an examination of whether at least one of such target torques violates the torque limit of the respective drive unit.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: October 4, 2016
    Assignee: ZF Friedrichshafen AG
    Inventor: Tobias Zoellner
  • Publication number: 20160214615
    Abstract: A method provides for operating a drive train having several drive assemblies, a transmission and an output A first drive assembly acts on a first transmission shaft of the transmission, and a second drive assembly acts on a second transmission shaft. The transmission includes several shift elements, whereas an output torque depending on a driver's requested torque is provided at the output. For the opening of a shift element the shift element is placed without load. The probability of a gearshift request is determined on the control side by a shifting strategy.
    Type: Application
    Filed: January 26, 2016
    Publication date: July 28, 2016
    Inventors: Tobias Zöllner, Karl Franz, Anatol Weidenbach
  • Publication number: 20160096520
    Abstract: Method for operating a drive train, which features several drive units (1, 2), one transmission (3) and one output (4), whereas a first drive unit (1) acts on a first transmission shaft (6) of the transmission (3), whereas a second drive unit (2) acts on a second transmission shaft (7) of the transmission (3), whereas the transmission (3) comprises several shift elements (9), whereas, at the output (4), an output torque that depends on the torque required by the driver is provided, and whereas, for the opening of a shift element (9) of the transmission (3), the shift element (9) to be opened is positioned in a load-free manner.
    Type: Application
    Filed: October 2, 2015
    Publication date: April 7, 2016
    Inventor: Tobias Zoellner
  • Publication number: 20110144846
    Abstract: A method for operating a hydraulic system of an automatic transmission, in particular in a hybrid drivetrain, in which the hydraulic system comprises a main pump that is powered by an internal combustion engine and/or an electric drive motor, an electric auxiliary pump and a system pressure valve for setting a system pressure, to ensure various operating functions. In addition to the main pump, the electric auxiliary pump also supplies the hydraulic system with a volume flow of an operating medium. The loading of the electric auxiliary pump is determined in an electronic control unit with regard to the value of the system pressure and the loading of the electric auxiliary pump is limited, by the electronic control unit, with regard to the selected operating function.
    Type: Application
    Filed: December 3, 2010
    Publication date: June 16, 2011
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventors: Tobias Zöllner, Bernd ALLGAIER, Christian SCHWEMER