Patents by Inventor Andreas HUNGER

Andreas HUNGER 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 for the open-loop control of an electrically controllable valve in a vehicle transmission
    Patent number: 11913506
    Abstract: A vehicle transmission includes a hydraulic circuit and a control unit. The control unit is configured to: obtain (20) a target pressure specification; convert (26) the target pressure specification into a target volume flow rate; determine (42) a valve volume flow rate as a function of the target volume flow rate and as a function of parameters that represent system properties of the hydraulic circuit; determine (46) a pressure drop at a valve due to flow forces as a function of the valve volume flow rate; determine (48) a compensated valve output pressure as a function of the valve volume flow rate and the pressure drop; determine (58) the electric control current as a function of the compensated valve output pressure; and activate a valve with the electric control current.
    Type: Grant
    Filed: June 7, 2023
    Date of Patent: February 27, 2024
    Assignee: ZF Friedrichshafen AG
    Inventors: Anton Fritzer, Thilo Schmidt, Andreas Schmidt, Valentine Vincent, Christoph Köhler, Jonas Knör, Michael Miller, Mario Hasel, Jakob Mayer, Christian Hunger, Fabian Schöniger
  • Pre-treatment process of a surface of a metallic substrate
    Patent number: 11492693
    Abstract: Process for pre-treatment of a surface of a chromium containing corrosion resistant metallic substrate prior to further processing, wherein the metallic substrate is brought into contact with an in-situ generated activating agent, being the thermal decomposition product of a hydrofluoroolefin, the substrate and the activating agent are heated, and optionally the activating agent is partly or entirely removed before further processing.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: November 8, 2022
    Assignee: BORTEC GMBH
    Inventors: Ralph Hunger, Andreas Hunger, Robin Berger
  • PRE-TREATMENT PROCESS OF A SURFACE OF A METALLIC SUBSTRATE
    Publication number: 20210123125
    Abstract: Process for pre-treatment of a surface of a chromium containing corrosion resistant metallic substrate prior to further processing, wherein the metallic substrate is brought into contact with an in-situ generated activating agent, being the thermal decomposition product of a hydrofluoroolefin, the substrate and the activating agent are heated, and optionally the activating agent is partly or entirely removed before further processing.
    Type: Application
    Filed: September 11, 2018
    Publication date: April 29, 2021
    Applicant: BorTec GmbH & Co. KG
    Inventors: Ralph HUNGER, Andreas HUNGER, Robin BERGER