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公开(公告)号：US11644387B2
公开(公告)日：2023-05-09
申请号：US17053743
申请日：2019-05-07
Applicant: Universität Paderborn
Inventor： Ansgar Trächtler , Karl-Peter Jäker , Simon Olma , Andreas Kohlstedt , Phillip Traphöner
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.-
公开(公告)号：US11165056B2
公开(公告)日：2021-11-02
申请号：US15527463
申请日：2015-11-09
Applicant: UNIVERSITÄT PADERBORN
Inventor： Siegmund Greulich-Weber
IPC: H01M4/38 , H01M4/36 , H01M4/62 , H01M10/052 , C04B35/636 , C04B35/624 , C04B35/622 , C01B32/984 , C04B35/628 , H01M10/0525
Abstract: The present invention relates to a method for producing an electrode material for a battery electrode, in particular for a lithium-ion battery, wherein said electrode material comprises nanostructured silicon carbide, comprising the steps of: a) providing a mixture including a silicon source, a carbon source and a dopant, wherein at least the silicon source and the carbon source are present in common in particles of a solid granulate; b) treating the mixture provided in step a) at a temperature in the range from ≥1400° C. to ≤2000° C., in particular in a range from ≥1650° C. to ≤1850° C., wherein step b) is carried out in a reactor that has a depositing surface the temperature of which relative to at least one other inner reactor surface is reduced. In summary, a method described above enables to combine a simple and cost-efficient production with a high cycle stability.
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公开(公告)号：US11181802B2
公开(公告)日：2021-11-23
申请号：US17046346
申请日：2019-04-09
Applicant: Universität Paderborn
Inventor： Laura Padberg , Christof Eigner , Matteo Santandrea , Christine Silberhorn
Abstract: The invention relates to a method for producing waveguides (201) from a material (202) of the KTP family comprising the following method steps: b) treating the material (202) in such a way that a periodic poling of the material (202) is achieved, c) treating the material (202) in a molten salt bath (309c), which contains rubidium ions, characterized in that the molten salt bath (309c) which contains rubidium ions in step c) satisfies the following boundary conditions: the mole fraction of rubidium nitrate (RbNO3) in the melt lies in the range of 86-90 mol % at the beginning of the treatment, the mole fraction of potassium nitrate (KNO3) in the melt lies in the range of 10-12 mol % at the beginning of the treatment, the mole fraction of barium nitrate (Ba(NO3)2) in the melt lies in the range of 0.5-1 mol % at the beginning of the treatment, the temperature of the melt lies in the range of 357-363° C. during the treatment. Thus the problem is solved, when reversing the known method steps, of achieving substantially identical diffusion depths of the ions during the ion exchange in order to produce periodically poled waveguides as free of corrugation as possible.
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公开(公告)号：US10260163B2
公开(公告)日：2019-04-16
申请号：US15542039
申请日：2015-12-23
Applicant: Universität Paderborn
Inventor： Siegmund Greulich-Weber
IPC: C30B25/02 , C30B25/00 , D01F9/08 , B01J19/02 , B01J19/18 , C01B32/956 , C23C16/32 , C30B29/36 , C30B29/66
Abstract: The disclosure relates to a device for continuously producing qualitatively high-grade crystalline silicon carbide, in particular in the form of nanocrystalline fiber.
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公开(公告)号：US20180037462A1
公开(公告)日：2018-02-08
申请号：US15555346
申请日：2016-03-01
Applicant: Universität Paderborn
Inventor： Siegmund Greulich-Weber
IPC: C01B32/956 , C08J5/00 , C08J5/04 , C03C14/00
Abstract: The present invention relates to a method for producing a fibre-reinforced, transparent composite material (10), comprising the following steps: a) providing a material matrix melt and b) producing reinforcing fibres (14), step b) of the method comprising the steps of b1) providing a mixture having a silicon source and a carbon source, the silicon source and the carbon source being present together in particles of a granulated solid; b2) treating the mixture provided in step a) of the method at a temperature in a range from ≧1400° C. to ≦2000° C., more particularly in a range from ≧1650° C. to ≦1850° C.; thereby producing reinforcing fibres (14), the method comprising the further steps of c) introducing the reinforcing fibres (14) into the material melt; and d) optionally cooling the material melt to form a transparent composite material (10). A method of this kind allows a composite material to be produced that is able to unite high transparency with outstanding reinforcing qualities.
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Patent Agency Ranking
公开(公告)号：US20210239574A1
公开(公告)日：2021-08-05
申请号：US17053743
申请日：2019-05-07
Applicant: Universität Paderborn
Inventor： Ansgar Trächtler , Karl-Peter Jäker , Simon Olma , Andreas Kohlstedt , Phillip Traphöner
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.
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公开(公告)号：US20210198811A1
公开(公告)日：2021-07-01
申请号：US16755722
申请日：2018-10-12
Inventor： Wolfgang Bremser , Oliver Ingolf Strube , David Wedegärtner , Thomas Gerhard Gries , Davide Pico , Alexander Lüking , Robert Brüll
Abstract: The invention relates to a method for producing a multicomponent fiber, wherein the fiber is formed from a plurality of filaments, where the filaments each have a core and a thermoplastic sheath, and where the sheath is generated during the production of the filaments by in situ polymerization of monomers or oligomers of the thermoplastic on the surface of the core, and also to multicomponent fibers produced accordingly and to organosheets produced therefrom.
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公开(公告)号：US20180193877A1
公开(公告)日：2018-07-12
申请号：US15563189
申请日：2016-03-31
Applicant: Universität Paderborn
Inventor： Siegmund Greulich-Weber
IPC: B05D3/06 , C04B35/80 , C04B35/624 , C04B35/626 , C04B35/64 , C04B35/63 , B05D3/02
CPC classification number: B05D3/06 , B05D3/0254 , B28B1/001 , C04B35/565 , C04B35/571 , C04B35/624 , C04B35/6262 , C04B35/62655 , C04B35/62695 , C04B35/63 , C04B35/64 , C04B35/806 , C04B2235/422 , C04B2235/443 , C04B2235/447 , C04B2235/46 , C04B2235/465 , C04B2235/48 , C04B2235/5244 , C04B2235/5264 , C04B2235/5436 , C04B2235/6026 , C04B2235/606 , C04B2235/656 , C04B2235/665
Abstract: The present invention relates to a process for producing a silicon carbide-containing body (100), characterized in that the process has the following process steps: a) providing a mixture (16) comprising a silicon source and a carbon source, the silicon source and the carbon source being present together in particles of a solid granular material; b) arranging a layer of the mixture (16) provided in process step a) on a carrier (12), the layer of the mixture (16) having a predefined thickness; and c) treating the mixture (16) arranged in process step b) over a locally limited area with a temperature within a range from ≥1400° C. to ≤2000° C. according to a predetermined three-dimensional pattern, the predetermined three-dimensional pattern being selected on the basis of the three-dimensional configuration of the body (100) to be produced. Such a process allows simple and inexpensive production even of complex structures from silicon carbide.
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公开(公告)号：US20240317087A1
公开(公告)日：2024-09-26
申请号：US18574198
申请日：2022-06-22
Applicant: UNIVERSITÄT PADERBORN
Inventor： Frank SCHAFMEISTER
CPC classification number: B60L53/22 , H02M1/007 , H02M1/4233 , B60L2210/12 , B60L2210/14
Abstract: The disclosure relates to a transformerless on-board charging device for electric vehicles for the low-leakage current charging of a traction battery BAT having a first DC-DC stage and a second DC-DC stage, where the two DC-DC stages are connected in series as a double stage, where the first DC-DC stage and the second DC-DC stage each have
at least two switching elements, in particular one transistor and one diode or two transistors,
at least one inductor coil, and
at least one output capacitor.
Furthermore, the disclosure relates to an associated method for controlling a DC-DC stage in a transformerless on-board charging device for electric vehicles.-
公开(公告)号：US20210033944A1
公开(公告)日：2021-02-04
申请号：US17046346
申请日：2019-04-09
Applicant: Universität Paderborn
Inventor： Laura PADBERG , Christof EIGNER , Matteo SANTANDREA , Christine SILBERHORN
Abstract: The invention relates to a method for producing waveguides (201) from a material (202) of the KTP family comprising the following method steps: b) treating the material (202) in such a way that a periodic poling of the material (202) is achieved, c), treating the material (202) in a molten salt bath (309c), which contains rubidium ions, characterized in that the molten salt bath (309c) which contains rubidium ions in step c) satisfies the following boundary conditions: the mole fraction of rubidium nitrate (RbNO3) in the melt lies in the range of 86-90 mol % at the beginning of the treatment, the mole fraction of potassium nitrate (KNO3) in the melt lies in the range of 10-12 mol % at the beginning of the treatment, the mole fraction of barium nitrate (Ba(NO3)2) in the melt lies in the range of 0.5-1 mol % at the beginning of the treatment, the temperature of the melt lies in the range of 357−363° C. during the treatment. Thus the problem is solved, when reversing the known method steps, of achieving substantially identical diffusion depths of the ions during the ion exchange in order to produce periodically poled waveguides as free of corrugation as possible.
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