Patents by Inventor Kai Müller
Kai Müller 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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Patent number: 12205987Abstract: A wafer includes a substrate and at least one intermediate layer formed on a surface of the substrate. The at least one intermediate layer covers the surface of the substrate at least partially. An outer surface of the at least one intermediate layer is directed away from the surface of the substrate. The wafer further includes nanostructures grown on the outer surface of the at least one intermediate layer. The at least one intermediate layer is formed in such a way that positions of growth of the nanostructures are predetermined on the outer surface of the at least one intermediate layer. At least one nanostructure material of the nanostructures is assembled at the positions of growth of the nanostructures.Type: GrantFiled: May 28, 2020Date of Patent: January 21, 2025Assignee: Technische Universität MünchenInventors: Christian Dangel, Jonathan Finley, Kai Müller, Frederik Bopp, Arne Ludwig, Nikolai Bart, Andreas Wieck
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Patent number: 12043127Abstract: A supply device for supplying electricity to at least one consumer includes: a primary power supply in which there is a first fuel cell device having a first performance; a voltage transformer which connects the primary power supply to a secondary power supply having a battery; and a measuring device for detecting an insulation resistance of the primary power supply and/or of the secondary power supply. A second fuel cell device having a second performance is connected in series with the first fuel cell device in the primary power supply, wherein a bridge circuit comprising a switch is connected in parallel with each of the fuel cell devices and wherein the switches of the bridge circuits can be switched in accordance with the detected insulation resistance. A fuel cell vehicle and a method for limiting voltage in a supply device are also provided.Type: GrantFiled: December 14, 2020Date of Patent: July 23, 2024Assignee: AUDI AGInventors: Markus Ruf, Kai Müller
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Patent number: 11995058Abstract: A method, a system, and a computer program product for providing a compression service, such as a Compression as a Service (Caas). In some implementations, there is provided a method including receiving, at a compression service, metric information regarding one or more columns of a database server; in response to receiving the metric information, processing, by the compression service, the metric information to identify at least one column as a candidate for compression by the compression service; in response to identifying the at least one column, compressing by the compression service, the at least one column, wherein the compression service uses a hardware accelerator to execution a compression algorithm that compresses the at least one column; and notifying, by the compression service, the database server of the at least one column compressed by the compression service. Related systems, methods, and articles of manufacture are also disclosed.Type: GrantFiled: July 5, 2022Date of Patent: May 28, 2024Assignee: SAP SEInventors: Daniel Ritter, Andre Dossinger, Kai Mueller, Norman May
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Patent number: 11947500Abstract: Various examples are directed to systems and methods for operating a database management system (DBMS) in a cloud environment. An assembly worker executing at a first computing device may provide a first database protocol message generated by a process code executing at the first computing device. A translation engine executed at the cloud environment may translate the first database protocol message from a first format to a second format associated with a DBMS instance executing at the cloud environment to generate a translated first database protocol message. The translation engine may cause the translated first database protocol message to be provided to the DBMS instance and may receive, from the DBMS instance, a first reply corresponding to the translated first database protocol message. The first reply may be sent to the process code.Type: GrantFiled: September 23, 2021Date of Patent: April 2, 2024Assignee: SAP SEInventors: Yu Wang, Moritz Semler, Kai Mueller, Le Zhang, Zuosui Wu, Haoxing Hou
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Patent number: 11890916Abstract: A device for raising a temperature in at least one portion of a vehicle from a low temperature value to a temperature value increased above this, has at least one electronic component producing waste heat. The at least one electronic component is formed as a processor. Furthermore, a controller is provided, being designed to command the processor to provide a computing capacity in a heating mode, and to supply the waste heat generated upon performing at least one computation of the processor to the at least one portion of the vehicle. The disclosure furthermore relates to a method for raising a temperature of at least one portion of a vehicle from a low temperature value to a temperature value increased above this.Type: GrantFiled: May 10, 2019Date of Patent: February 6, 2024Assignee: AUDI AGInventors: Markus Ruf, Kai Müller
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Patent number: 11888194Abstract: A method for distinguishing the cause of voltage losses in a fuel cell device includes: a) Detection of a quasi-stationary operation of the fuel cell device, b) Acquisition and storage of a measured current-voltage characteristic curve with the current values and the voltage values of a fuel cells stack of the fuel cell device, c) Use of a PtOx model to determine PtOx voltage losses and calculation of a corrected current-voltage characteristic curve for the PtOx-free and normally humidified fuel cell stack, and d) Comparison of the current-voltage characteristic curves determined in step b) and in step c) and detection of an at least partially dried-out fuel cell stack if the measured current-voltage characteristic curve runs below the corrected current-voltage characteristic curve. A fuel cell device and a motor vehicle comprising a fuel cell device are also provided.Type: GrantFiled: June 17, 2021Date of Patent: January 30, 2024Assignee: Audi AGInventors: Oscar Montoya, Kai Müller
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Publication number: 20240012799Abstract: A method, a system, and a computer program product for providing a compression service, such as a Compression as a Service (Caas). In some implementations, there is provided a method including receiving, at a compression service, metric information regarding one or more columns of a database server; in response to receiving the metric information, processing, by the compression service, the metric information to identify at least one column as a candidate for compression by the compression service; in response to identifying the at least one column, compressing by the compression service, the at least one column, wherein the compression service uses a hardware accelerator to execution a compression algorithm that compresses the at least one column; and notifying, by the compression service, the database server of the at least one column compressed by the compression service. Related systems, methods, and articles of manufacture are also disclosed.Type: ApplicationFiled: July 5, 2022Publication date: January 11, 2024Inventors: Daniel Ritter, Andre Dossinger, Kai Mueller, Norman May
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Publication number: 20230216075Abstract: A method for distinguishing the cause of voltage losses in a fuel cell device includes: a) Detection of a quasi-stationary operation of the fuel cell device, b) Acquisition and storage of a measured current-voltage characteristic curve with the current values and the voltage values of a fuel cells stack of the fuel cell device, c) Use of a PtOx model to determine PtOx voltage losses and calculation of a corrected current-voltage characteristic curve for the PtOx-free and normally humidified fuel cell stack, and d) Comparison of the current-voltage characteristic curves determined in step b) and in step c) and detection of an at least partially dried-out fuel cell stack if the measured current-voltage characteristic curve runs below the corrected current-voltage characteristic curve. A fuel cell device and a motor vehicle comprising a fuel cell device are also provided.Type: ApplicationFiled: June 17, 2021Publication date: July 6, 2023Inventors: Oscar MONTOYA, Kai MÜLLER
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Publication number: 20230089662Abstract: Various examples are directed to systems and methods for operating a database management system (DBMS) in a cloud environment. An assembly worker executing at a first computing device may provide a first database protocol message generated by a process code executing at the first computing device. A translation engine executed at the cloud environment may translate the first database protocol message from a first format to a second format associated with a DBMS instance executing at the cloud environment to generate a translated first database protocol message. The translation engine may cause the translated first database protocol message to be provided to the DBMS instance and may receive, from the DBMS instance, a first reply corresponding to the translated first database protocol message. The first reply may be sent to the process code.Type: ApplicationFiled: September 23, 2021Publication date: March 23, 2023Inventors: Yu Wang, Moritz Semler, Kai Mueller, Le Zhang, Zuosui Wu, Haoxing Hou
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Publication number: 20220388406Abstract: A supply device for supplying electricity to at least one consumer includes: a primary power supply in which there is a first fuel cell device having a first performance; a voltage transformer which connects the primary power supply to a secondary power supply having a battery; and a measuring device for detecting an insulation resistance of the primary power supply and/or of the secondary power supply. A second fuel cell device having a second performance is connected in series with the first fuel cell device in the primary power supply, wherein a bridge circuit comprising a switch is connected in parallel with each of the fuel cell devices and wherein the switches of the bridge circuits can be switched in accordance with the detected insulation resistance. A fuel cell vehicle and a method for limiting voltage in a supply device are also provided.Type: ApplicationFiled: December 14, 2020Publication date: December 8, 2022Inventors: Markus RUF, Kai MÜLLER
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Publication number: 20220344462Abstract: A wafer includes a substrate and at least one intermediate layer formed on a surface of the substrate. The at least one intermediate layer covers the surface of the substrate at least partially. An outer surface of the at least one intermediate layer is directed away from the surface of the substrate. The wafer further includes nanostructures grown on the outer surface of the at least one intermediate layer. The at least one intermediate layer is formed in such a way that positions of growth of the nanostructures are predetermined on the outer surface of the at least one intermediate layer. At least one nanostructure material of the nanostructures is assembled at the positions of growth of the nanostructures.Type: ApplicationFiled: May 28, 2020Publication date: October 27, 2022Inventors: Christian Dangel, Jonathan Finley, Kai Müller, Frederik Bopp, Arne Ludwig, Nikolai Bart, Andreas Wieck
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Patent number: 11176314Abstract: A method, a system, and a computer program product for generating code from an XML schema description. A source extendible markup language (XML) schema description for an object is received. Based on the received XML schema description, a XML schema description model having a plurality of model elements is computed. Each model element in the plurality of model elements corresponds to an element in the XML schema description for the object. Based on the computed XML schema description model, a computing code for implementation in a plurality of target computing environments is generated.Type: GrantFiled: September 19, 2019Date of Patent: November 16, 2021Assignee: SAP SEInventors: Kai Mueller, Moritz Semler
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Patent number: 11171348Abstract: A method for operating a fuel cell system comprising a control unit and at least one fuel cell comprises a cycle of the following steps: recording of an actual U/I characteristic curve of the fuel cell, comparison of the recorded actual U/I characteristic curve of the fuel cell with a target U/I characteristic curve stored in a memory, at least within a predetermined or pre-determinable current range, and determination of the difference between the target U/I characteristic curve and the actual U/I characteristic curve within the current range, comprising the following steps: continuous or clocked repetition of the cycle until the difference reaches or exceeds a predetermined or pre-determinable difference limit value, and adjustment of at least one parameter of the control unit to reduce or minimize the difference.Type: GrantFiled: November 25, 2019Date of Patent: November 9, 2021Assignee: AUDI AGInventors: Markus Ruf, Kai Müller
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Patent number: 11150289Abstract: The presented invention relates to a method for monitoring an insulation state of a first high-voltage network and an insulation state of at least one further high-voltage network of a vehicle, wherein a single insulation monitor is connected to the first high-voltage network and to the at least one further high-voltage network, and wherein, by means of the insulation monitor, a first insulation measurement, initially, is carried out, in a periodically repeated sequence, on the first high-voltage network, and, then, a further insulation measurement is carried out in each case on the at least one further high-voltage network.Type: GrantFiled: March 22, 2018Date of Patent: October 19, 2021Assignee: AUDI AGInventor: Kai Müller
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Patent number: 11101476Abstract: The invention relates to a device and a method for isolating a fuel cell, which make it possible to safely work on the fuel cell during a servicing or repair operation.Type: GrantFiled: July 3, 2018Date of Patent: August 24, 2021Assignee: AUDI AGInventor: Kai Müller
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Patent number: 11092653Abstract: The present disclosure relates to a method and a device for determining the insulation resistance of a fuel-cell system.Type: GrantFiled: March 14, 2019Date of Patent: August 17, 2021Assignee: AUDI AGInventors: Kai Müller, Friedrich Wilhelm, Stefan Längle
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Publication number: 20210170831Abstract: A device for raising a temperature in at least one portion of a vehicle from a low temperature value to a temperature value increased above this, has at least one electronic component producing waste heat. The at least one electronic component is formed as a processor. Furthermore, a controller is provided, being designed to command the processor to provide a computing capacity in a heating mode, and to supply the waste heat generated upon performing at least one computation of the processor to the at least one portion of the vehicle. The disclosure furthermore relates to a method for raising a temperature of at least one portion of a vehicle from a low temperature value to a temperature value increased above this.Type: ApplicationFiled: May 10, 2019Publication date: June 10, 2021Inventors: Markus RUF, Kai MÜLLER
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Patent number: 10994679Abstract: An onboard electrical system for a motor vehicle is provided having a primary power supply network and a secondary power supply network electrically connected to the primary power supply network via a DC-DC converter, wherein the primary power supply network and the secondary power supply network are connected to one another via a blocking diode of the DC-DC converter and the blocking diode has a forward direction thereof oriented from the primary power supply network toward the secondary power supply network, and wherein an insulation monitoring device having a measuring resistor is associated with the secondary power supply network for determining an insulation fault. It is provided that an additional resistor is connected in parallel with the blocking diode for bridging thereof, such that an insulation fault common to the primary power supply network and the secondary power supply network can be determined by the insulation monitoring device.Type: GrantFiled: June 19, 2018Date of Patent: May 4, 2021Assignee: AUDI AGInventors: Kai Müller, Maximilian Schiedermeier, Martin Breu
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Publication number: 20210089615Abstract: A method, a system, and a computer program product for generating code from an XML schema description. A source extendible markup language (XML) schema description for an object is received. Based on the received XML schema description, a XML schema description model having a plurality of model elements is computed. Each model element in the plurality of model elements corresponds to an element in the XML schema description for the object. Based on the computed XML schema description model, a computing code for implementation in a plurality of target computing environments is generated.Type: ApplicationFiled: September 19, 2019Publication date: March 25, 2021Inventors: Kai Mueller, Moritz Semler
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Publication number: 20200198564Abstract: An onboard electrical system for a motor vehicle is provided having a primary power supply network and a secondary power supply network electrically connected to the primary power supply network via a DC-DC converter, wherein the primary power supply network and the secondary power supply network are connected to one another via a blocking diode of the DC-DC converter and the blocking diode has a forward direction thereof oriented from the primary power supply network toward the secondary power supply network, and wherein an insulation monitoring device having a measuring resistor is associated with the secondary power supply network for determining an insulation fault. It is provided that an additional resistor is connected in parallel with the blocking diode for bridging thereof, such that an insulation fault common to the primary power supply network and the secondary power supply network can be determined by the insulation monitoring device.Type: ApplicationFiled: June 19, 2018Publication date: June 25, 2020Inventors: Kai MÜLLER, Maximilian SCHIEDERMEIER, Martin BREU