Patents by Inventor Claus Muller
Claus Muller 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).
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Publication number: 20240014745Abstract: A power electronics converter includes a carrier substrate, and a converter commutation cell including a power circuit. The power circuit includes a power semiconductor switching element included in a power semiconductor prepackage. The power semiconductor prepackage includes a power semiconductor switching element and an electrical connection extending from a terminal of the power semiconductor switching element to an electrical connection side of the power semiconductor prepackage. The power electronics converter includes a heat sink arranged to remove heat from the power semiconductor prepackage, a thermal interface layer arranged between the heat removal side of the power semiconductor prepackage and the heat sink, and an electrical isolation layer arranged between the power semiconductor switching element and the heat sink. A product of a thermal conductivity of the thermal interface layer and a breakdown electric field strength of the electrical isolation layer is greater than or equal to 5 MVW/m2K.Type: ApplicationFiled: December 2, 2022Publication date: January 11, 2024Inventors: Uwe Waltrich, Stanley Buchert, Marco Bohlländer, Claus Müller
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Patent number: 11855551Abstract: A power electronics converter includes a carrier substrate, and a converter commutation cell including a power circuit. The power circuit includes a power semiconductor switching element included in a power semiconductor prepackage. The power semiconductor prepackage includes a power semiconductor switching element and an electrical connection extending from a terminal of the power semiconductor switching element to an electrical connection side of the power semiconductor prepackage. The power electronics converter includes a heat sink arranged to remove heat from the power semiconductor prepackage, a thermal interface layer arranged between the heat removal side of the power semiconductor prepackage and the heat sink, and an electrical isolation layer arranged between the power semiconductor switching element and the heat sink. A product of a thermal conductivity of the thermal interface layer and a breakdown electric field strength of the electrical isolation layer is greater than or equal to 5 MVW/m2K.Type: GrantFiled: December 2, 2022Date of Patent: December 26, 2023Assignee: Rolls-Royce Deutschland Ltd & Co KG BInventors: Uwe Waltrich, Stanley Buchert, Marco Bohlländer, Claus Müller
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Patent number: 11834019Abstract: A Hydraulic braking system is for braking a vehicle wheel according to a braking pressure control that includes a hydraulic pump driven by an electric motor for hydraulic pressure generation, an electronic control unit for the determination of at least one control error, based on a measured actual braking pressure compared with a pressure demand setpoint, which controls at least one actuator for a pressure increase and/or a pressure reduction of the actual braking pressure to adjust to the pressure demand setpoint. Furthermore, a method is provided for braking a vehicle wheel according to this braking pressure control and a related computer program product.Type: GrantFiled: July 26, 2018Date of Patent: December 5, 2023Inventors: Claus Müller, Reinhard Loebner, Marcus Clev, Fabian Elwischger
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Publication number: 20230387909Abstract: A method of designing and manufacturing a power electronics converter for an electrical power system is provided. A circuit design for the power electronics converter is selected. A shape constraint for integrating the power electronics converter into the electrical power system is determined, and at least one multi-layer carrier substrate is obtained according to the determined shape constraint. A plurality of power semiconductor prepackages are obtained. Each power semiconductor prepackage includes a power semiconductor switching element embedded in a solid insulating material and an electrical connection extending through the solid insulating material from a terminal of the power semiconductor switching element to a connection surface of the prepackage.Type: ApplicationFiled: January 24, 2023Publication date: November 30, 2023Inventors: Uwe Waltrich, Stanley Buchert, Marco Bohlländer, Claus Müller
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Publication number: 20230387821Abstract: A power electronics converter may include: a first multi-layer planar carrier substrate having one or more electrically conductive layers; a second multi-layer planar carrier substrate having one or more electrically conductive layers; a converter commutation cell circuit including a plurality of commutation cell components that are electrically connected together via the one or more electrically conductive layers of the first planar carrier substrate and electrical connections, the commutation cell components including one or more power semiconductor switching elements in one or more power semiconductor prepackages, each power semiconductor prepackage including a power semiconductor switching element embedded in a solid insulating material; one or more additional converter components electrically connected to the one or more electrically conductive layers of the second planar carrier substrate; and one or more further electrical connections connecting together one or more of the electrically conductive layerType: ApplicationFiled: January 24, 2023Publication date: November 30, 2023Inventors: Uwe Waltrich, Stanley Buchert, Marco Bohlländer, Claus Müller
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Publication number: 20230382236Abstract: A power electronics converter may include a converter commutation cell having a power circuit and a gate driver circuit. The power circuit includes at least one power semiconductor switching element and at least one capacitor. Each power semiconductor switching element is included in a power semiconductor prepackage, each prepackage including one or more power semiconductor switching elements embedded in a solid insulating material, each power semiconductor switching element having at least three terminals including a gate terminal. The gate driver circuit is electrically connected to and configured to provide switching signals to the gate terminal of each of the at least one power semiconductor switching element. A peak rated power output of the power electronics converter is greater than 25 kW and a value of a converter parameter ? is greater than or equal to 0.5 PV/FH.Type: ApplicationFiled: June 22, 2023Publication date: November 30, 2023Inventors: Uwe Waltrich, Stanley Buchert, Marco Bohlländer, Claus Müller
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Patent number: 11764647Abstract: An electrical power system includes an electrical machine having one or more windings and an AC-DC power electronics converter including a commutation cell having a power circuit and a gate driver circuit. The power circuit includes a plurality of power semiconductor switching elements and a capacitor. The gate driver circuit is electrically connected to and configured to provide switching signals to a gate terminal of each power semiconductor switching element. A peak rated power output of the electrical machine and the AC-DC power electronics converter is greater than 25 kW, a maximum efficiency of the AC-DC power electronics converter is greater than 97%, and a value of parameter ? is greater than or equal to 0.3 PV/s2, where ? is a product of a maximum switching frequency of the switching signals and a maximum rate of change of a source-drain voltage of the plurality of power semiconductor switching elements.Type: GrantFiled: August 31, 2022Date of Patent: September 19, 2023Assignee: Rolls-Royce Deutschland Ltd & Co KGInventors: Uwe Waltrich, Stanley Buchert, Marco Bohlländer, Claus Müller
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Patent number: 11728743Abstract: A power electronics converter includes a carrier substrate, and a converter commutation cell including a power circuit. The power circuit includes at least one power semiconductor switching element. Each power semiconductor switching element is comprised in a power semiconductor prepackage. One or more terminals of each power semiconductor switching element are connected to at least one conductive layer of the carrier substrate at an electrical connection side of the respective power semiconductor prepackage. The electrical connection side is spaced apart from the carrier substrate by a gap. At least a portion of the gap is filled with an electrically insulating material with voids. A peak rated power output of the power electronics converter is greater than 25 kW, and a converter parameter, which is defined as a product of a dielectric strength of the electrically insulating material and a maximum void size, is less than or equal to 10,000 V.Type: GrantFiled: August 31, 2022Date of Patent: August 15, 2023Assignee: Rolls-Royce Deutschland Ltd & Co KGInventors: Uwe Waltrich, Stanley Buchert, Marco Bohlländer, Claus Müller
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Patent number: 11637504Abstract: A power electronics converter includes a carrier substrate, and a converter commutation cell including a power circuit. The power circuit includes a power semiconductor switching element. The power semiconductor switching element is comprised in a power semiconductor prepackage. The power semiconductor prepackage includes a power semiconductor switching element embedded in a solid insulating material, and an electrical connection extending from a terminal of the power semiconductor switching element through the solid insulating material to an electrical connection side of the power semiconductor prepackage. The power electronics converter includes a heat sink arranged to remove heat from the power semiconductor prepackage. The power electronics converter includes a thermal interface layer arranged between the heat removal side of the power semiconductor prepackage and the heat sink.Type: GrantFiled: August 31, 2022Date of Patent: April 25, 2023Assignee: Rolls-Royce Deutschland Ltd & Co KGInventors: Uwe Waltrich, Stanley Buchert, Marco Bohlländer, Claus Müller
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Publication number: 20220359342Abstract: The disclosure relates to an arrangement with a power module including power semiconductor components. The arrangement further includes a component having a curved surface. The power module is arranged on the curved surface of the component and is non-positively detachably connected to the component. The disclosure also relates to a power converter with the arrangement and to a vehicle with a power converter.Type: ApplicationFiled: May 29, 2020Publication date: November 10, 2022Inventors: Markus Lasch, Claus Müller, Oliver Raab, Stefan Stegmeier, Uwe Waltrich
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Publication number: 20220254652Abstract: The invention relates to an arrangement for a power converter (12) comprising at least one power module (1) comprising power semiconductor components (5) and a cooler (10), wherein the cooler (10) has a curved surface and the power module (1) is arranged on the surface and is connected in a positive fit to the cooler (10). The invention also relates to an associated manufacturing method as well as to a power converter with said type of arrangement and to a vehicle with a power converter.Type: ApplicationFiled: May 29, 2020Publication date: August 11, 2022Inventors: Markus Lasch, Claus Müller, Oliver Raab, Stefan Stegmeier, Uwe Waltrich
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Publication number: 20210129818Abstract: A Hydraulic braking system is for braking a vehicle wheel according to a braking pressure control that includes a hydraulic pump driven by an electric motor for hydraulic pressure generation, an electronic control unit for the determination of at least one control error, based on a measured actual braking pressure compared with a pressure demand setpoint, which controls at least one actuator for a pressure increase and/or a pressure reduction of the actual braking pressure to adjust to the pressure demand setpoint. Furthermore, a method is provided for braking a vehicle wheel according to this braking pressure control and a related computer program product.Type: ApplicationFiled: July 26, 2018Publication date: May 6, 2021Inventors: Claus MÜLLER, Reinhard LOEBNER, Marcus CLEV, Fabian ELWISCHGER
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Patent number: 10583744Abstract: A braking system for a rail vehicle includes a target value generator for the target value of the overall braking power, a controller for determining at least one manipulated variable value on the basis of the target value and at least one actuator which transmits the manipulated variable value to the at least one braking device. The system at least approximately determines acceleration components of the rail vehicle and determines the actual value of the total braking power from the acceleration components while taking the vehicle speed and the vehicle mass into consideration. The controller is designed to control the manipulated variable value such as to reduce the control deviation between the target value and the determined actual value.Type: GrantFiled: June 17, 2016Date of Patent: March 10, 2020Assignee: KNORR-BREMSE SYSTEME FÜR SCHIENENFAHRZEUGE GMBHInventors: Claus Müller, Christoph Tomberger, Ulf Friesen, Achim Vollmer
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Publication number: 20180194233Abstract: A braking system for a rail vehicle includes a target value generator for the target value of the overall braking power, a controller for determining at least one manipulated variable value on the basis of the target value and at least one actuator which transmits the manipulated variable value to the at least one braking device. The system at least approximately determines acceleration components of the rail vehicle and determines the actual value of the total braking power from the acceleration components while taking the vehicle speed and the vehicle mass into consideration. The controller is designed to control the manipulated variable value such as to reduce the control deviation between the target value and the determined actual value.Type: ApplicationFiled: June 7, 2016Publication date: July 12, 2018Inventors: Claus MÜLLER, Christoph TOMBERGER, Ulf FRIESEN, Achim VOLLMER
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Patent number: 9829039Abstract: A roller bearing cage, in particular for use with insufficient lubrication, including a plastic base body (2), a modified surface (4) of the base body (2), and a metallic coating (3) on the modified surface (4) of the base body (2).Type: GrantFiled: July 1, 2014Date of Patent: November 28, 2017Assignee: Schaeffler Technologies AG & Co. KGInventors: Nico Kirchhoff, Claus Muller, Bertram Haag
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Publication number: 20160201723Abstract: A roller bearing cage, in particular for use with insufficient lubrication, including a plastic base body (2), a modified surface (4) of the base body (2), and a metallic coating (3) on the modified surface (4) of the base body (2).Type: ApplicationFiled: July 1, 2014Publication date: July 14, 2016Applicant: Schaeffler Technologies AG & Co. KGInventors: Nico Kirchhoff, Claus Muller, Bertram Haag
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Patent number: 8961030Abstract: A bearing, including a bearing part, in particular a bearing ring (5, 6) having a cathodic corrosion prevention device. The aim of providing a bearing having a permanent, adjustable corrosion prevention device that requires only minor structural changes is achieved according to the invention in that the bearing part, in particular the bearing ring (5, 6), is connected as the cathode of an external power source, and that the anode (8, 10) of the external power source is arranged spaced apart from the bearing part, in particular the bearing ring (5, 6).Type: GrantFiled: April 12, 2012Date of Patent: February 24, 2015Assignee: Schaeffler Technologies AG & Co. KGInventors: Nico Kirchhoff, Christian Schulte-Nolle, Thomas Loesche, Claus Muller
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Publication number: 20140044387Abstract: A bearing, including a bearing part, in particular a bearing ring (5, 6) having a cathodic corrosion prevention device. The aim of providing a bearing having a permanent, adjustable corrosion prevention device that requires only minor structural changes is achieved according to the invention in that the bearing part, in particular the bearing ring (5, 6), is connected as the cathode of an external power source, and that the anode (8, 10) of the external power source is arranged spaced apart from the bearing part, in particular the bearing ring (5, 6).Type: ApplicationFiled: April 12, 2012Publication date: February 13, 2014Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Nico Kirchhoff, Christian Schulte-Nolle, Thomas Loesche, Claus Muller
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Publication number: 20110250466Abstract: A metallic component, in particular a rolling bearing, engine or transmission component, having a component body and at least one functional surface thereof that interacts with another element. Only the functional surface (7) is formed from an amorphous metal (6).Type: ApplicationFiled: March 19, 2010Publication date: October 13, 2011Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KGInventors: Claus Muller, Peter Schuster
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Patent number: 8012043Abstract: The present invention relates to a grip tape for ball game rackets having a conical or trapezoidal base shape in the longitudinal direction or a length and a width, wherein the width varies at least along an essential portion of the length. The present invention also relates to a replacement grip tape including the features of a grip tape of the invention, and a process for producing a grip tape of the invention. Moreover, the present invention also relates to a grip for a ball game racket including a portion facing the head region of the ball game racket and having a first cross-section and a portion facing the end of the ball game racket and having a widening cross-section for holding the grip, as well as the combination of grip and grip tape.Type: GrantFiled: February 2, 2007Date of Patent: September 6, 2011Assignee: Head Technology GmbHInventors: Manfred Emberger, Stefan Mohr, Claus Müller, Klaus Rambach, Gert Rhomberg