Patents by Inventor Andreas Kohlstedt

Andreas Kohlstedt 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: 11644387
    Abstract: The invention relates to a method for dynamic load simulation, wherein loads are specified by target signals and applied to a test object by a parallel kinematic excitation unit via an end effector, including the following operations: measuring loads at a contact point (200), comparing the measured loads with the target signals (300), and determining target pressures (400) for individual actuators of the parallel kinematic excitation unit for applying the target signals by use of a control algorithm (Fq,ref). This provides a method for dynamic load simulation that reduces the time and cost expenditure compared to previously known methods and at the same time enables hardware-in-the-loop simulations to be used.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: May 9, 2023
    Assignee: Universität Paderborn
    Inventors: Ansgar Trächtler, Karl-Peter Jäker, Simon Olma, Andreas Kohlstedt, Phillip Traphöner
  • Publication number: 20220050034
    Abstract: The invention relates to a load simulation test stand having at least one hydraulic test cylinder (1) which comprises at least one cylinder chamber (1a, 1b) which can be charged with hydraulic fluid, preferably two cylinder chambers (1a, 1b) which can be charged with hydraulic fluid and which act counter to one another, in the case of which load simulation test stand the at least one test cylinder (1), in particular each of multiple provided test cylinders (1), comprises at least one capacity element (5, 6, 7), preferably a capacity element (5, 6, 7) which is exchangeable or which is adjustable in terms of hydraulic capacity, by means of which the hydraulic overall capacity of the at least one cylinder chamber (1a, 1b) can be adjusted.
    Type: Application
    Filed: November 25, 2019
    Publication date: February 17, 2022
    Inventors: Karl-Peter JAEKER, Ansgar TRAECHTLER, Simon OLMA, Andreas KOHLSTEDT, Philipp TRAPHOENER
  • Publication number: 20210239574
    Abstract: The invention relates to a method for dynamic load simulation, wherein loads are specified by target signals and applied to a test object by a parallel kinematic excitation unit via an end effector, including the following operations: measuring loads at a contact point (200), comparing the measured loads with the target signals (300), and determining target pressures (400) for individual actuators of the parallel kinematic excitation unit for applying the target signals by use of a control algorithm (Fq,ref). This provides a method for dynamic load simulation that reduces the time and cost expenditure compared to previously known methods and at the same time enables hardware-in-the-loop simulations to be used.
    Type: Application
    Filed: May 7, 2019
    Publication date: August 5, 2021
    Applicant: Universität Paderborn
    Inventors: Ansgar Trächtler, Karl-Peter Jäker, Simon Olma, Andreas Kohlstedt, Phillip Traphöner