Patents by Inventor Harald Schöffler
Harald Schöffler 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: 11777436Abstract: A method for a safety concept for an AC battery, in which the AC battery includes a central controller, a plurality of battery modules which respectively have a power board with a plurality of switching states, a plurality of contactors, a plurality of current sensors, a fault loop and a high-speed bus and is connected to a traction machine. The central controller has a hardware-programmable processor unit with at least one microprocessor core on which a control program is configured to control the battery modules, the plurality of contactors and the fault loop. A state machine is implemented by the control program. The battery modules are connected, starting from the central controller, via the high-speed bus and the fault loop. If an abort fault occurs, the AC battery is changed to a safe operating state. The safe state is achieved at least by emergency disconnection of the central controller.Type: GrantFiled: November 4, 2021Date of Patent: October 3, 2023Inventors: Harald Schöffler, Sven Lill, Hermann Helmut Dibos, Daniel Simon, Eduard Specht, Christian Korte, Jan Kacetl, Tomas Kacetl
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Patent number: 11656252Abstract: A measurement apparatus has a current sensor and at least one A/D converter, which current sensor has at least two channels (CH1, CH2), via which channels (CH1, CH2) the current sensor (30) respectively provides a measurement signal (CH1_SIG, CH2_SIG) characterizing the current. The at least two channels (CH1, CH2) include a first channel (CH1) and a second channel (CH2), which second channel (CH2) is designed to measure a greater maximum current than the first channel (CH1). Also described is a method for measuring a current flowing through a conductor by way of the measurement apparatus.Type: GrantFiled: November 4, 2021Date of Patent: May 23, 2023Inventors: Sven Lill, Harald Schöffler, Daniel Simon
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Publication number: 20220140768Abstract: A method for a safety concept for an AC battery, in which the AC battery includes a central controller, a plurality of battery modules which respectively have a power board with a plurality of switching states, a plurality of contactors, a plurality of current sensors, a fault loop and a high-speed bus and is connected to a traction machine. The central controller has a hardware-programmable processor unit with at least one microprocessor core on which a control program is configured to control the battery modules, the plurality of contactors and the fault loop. A state machine is implemented by the control program. The battery modules are connected, starting from the central controller, via the high-speed bus and the fault loop. If an abort fault occurs, the AC battery is changed to a safe operating state. The safe state is achieved at least by emergency disconnection of the central controller.Type: ApplicationFiled: November 4, 2021Publication date: May 5, 2022Applicant: Dr. Ing. h.c. F. Porsche AktiengesellschaftInventors: Harald Schöffler, Sven Lill, Hermann Helmut Dibos, Daniel Simon, Eduard Specht, Christian Korte, Jan Kacetl, Tomas Kacetl
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Publication number: 20220137105Abstract: A measurement apparatus has a current sensor and at least one A/D converter, which current sensor has at least two channels (CH1, CH2), via which channels (CH1, CH2) the current sensor (30) respectively provides a measurement signal (CH1_SIG, CH2_SIG) characterizing the current. The at least two channels (CH1, CH2) include a first channel (CH1) and a second channel (CH2), which second channel (CH2) is designed to measure a greater maximum current than the first channel (CH1). Also described is a method for measuring a current flowing through a conductor by way of the measurement apparatus.Type: ApplicationFiled: November 4, 2021Publication date: May 5, 2022Applicant: Dr. Ing. h.c. F. Porsche AktiengesellschaftInventors: Sven Lill, Harald Schöffler, Daniel Simon
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Patent number: 10828994Abstract: A battery system (10) has at least one battery (9) with a plurality of battery elements (1, 2, 24, n), a regulating or control unit (12) and a switching unit (3) with at least one switching element (6). The regulating or control unit (12) is configured to instruct the switching unit (3) to dynamically switch the at least one switching element (6) over time such that battery elements (1, 2, 24, n) from at least one accordingly dynamically changing subset of the plurality of battery elements (1, 2, 24, n) are connected, and a respective voltage level to be provided is provided thereby for the plurality of load consumers. In addition to providing a plurality of voltage levels, the battery elements (1, 2, 24, n) are deliberately loaded.Type: GrantFiled: April 11, 2016Date of Patent: November 10, 2020Assignee: Dr. Ing. h.c. F. Porsche AktiengesellschaftInventors: Stefan Goetz, Ralf Bauer, Harald Schoeffler, Juergen Mittnacht
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Patent number: 10211485Abstract: A battery system (10) has a battery (12) for providing a first voltage and has at least one tap (15, 19, 21) that divides the battery (12) into at least one first battery element (14) for providing a first partial voltage and at least one second battery element (16) for providing a second partial voltage. A power changeover switch (18) is arranged between the at least one first battery element (14) and the at least one second battery element (16) and is designed to change over between the at least one first battery element (14) and the at least one second battery element (16) at a changeover rate to be specified.Type: GrantFiled: April 11, 2016Date of Patent: February 19, 2019Assignee: Dr. Ing. h.c. F. Porsche AktiengesellschaftInventors: Stefan Goetz, Ralf Bauer, Harald Schoeffler, Juergen Mittnacht
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Patent number: 10135266Abstract: A battery system having a battery having at least one first battery element, at least one second battery element and a center tap between the at least one first and the at least one second battery element, a power changeover switch having a plurality of switching elements for changing over between the at least one first battery element and the at least one second battery element, and at least one pair of output terminals that is electrically connected to the battery, wherein the center tap has a first capacitive store arranged on it that has a store voltage that appears over an appropriate period in accordance with a first and/or second battery element voltage provided by the first and/or second battery element, wherein during the period in which the store voltage appears, a store current decreases from a maximum value to a value of zero.Type: GrantFiled: October 10, 2016Date of Patent: November 20, 2018Assignee: Dr. Ing. h.c. F. Porsche AktiengesellschaftInventors: Stefan Götz, Ulf Schlieben, Sven Lill, Ralf Bauer, Harald Schöffler
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Publication number: 20170110894Abstract: A battery system having a battery having at least one first battery element, at least one second battery element and a center tap between the at least one first and the at least one second battery element, a power changeover switch having a plurality of switching elements for changing over between the at least one first battery element and the at least one second battery element, and at least one pair of output terminals that is electrically connected to the battery, wherein the center tap has a first capacitive store arranged on it that has a store voltage that appears over an appropriate period in accordance with a first and/or second battery element voltage provided by the first and/or second battery element, wherein during the period in which the store voltage appears, a store current decreases from a maximum value to a value of zero.Type: ApplicationFiled: October 10, 2016Publication date: April 20, 2017Inventors: Stefan Götz, Ulf Schlieben, Sven Lill, Ralf Bauer, Harald Schöffler
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Publication number: 20160318411Abstract: A battery system (10) has at least one battery (9) with a plurality of battery elements (1, 2, 24, n), a regulating or control unit (12) and a switching unit (3) with at least one switching element (6). The regulating or control unit (12) is configured to instruct the switching unit (3) to dynamically switch the at least one switching element (6) over time such that battery elements (1, 2, 24, n) from at least one accordingly dynamically changing subset of the plurality of battery elements (1, 2, 24, n) are connected, and a respective voltage level to be provided is provided thereby for the plurality of load consumers. In addition to providing a plurality of voltage levels, the battery elements (1, 2, 24, n) are deliberately loaded.Type: ApplicationFiled: April 11, 2016Publication date: November 3, 2016Inventors: Stefan Goetz, Ralf Bauer, Harald Schoeffler, Juergen Mittnacht
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Publication number: 20160322672Abstract: A battery system (10) has a battery (12) for providing a first voltage and has at least one tap (15, 19, 21) that divides the battery (12) into at least one first battery element (14) for providing a first partial voltage and at least one second battery element (16) for providing a second partial voltage. A power changeover switch (18) is arranged between the at least one first battery element (14) and the at least one second battery element (16) and is designed to change over between the at least one first battery element (14) and the at least one second battery element (16) at a changeover rate to be specified.Type: ApplicationFiled: April 11, 2016Publication date: November 3, 2016Inventors: Stefan Goetz, Ralf Bauer, Harald Schoeffler, Juergen Mittnacht
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Patent number: 8008911Abstract: In a method for determining road clearance of a vehicle, the vehicle is moved relative to a measurement configuration with a reference surface. One or more magnets, which are disposed on the vehicle and assigned preferably each to a defined measurement point on the vehicle, is detected by at least one device for magnetic field measurement. With the help of at least one device for separation measurement, the separation between the measurement configuration and the bottom side of the vehicle is determined. In this way, a rapid, reliable, repeatable and flexibly usable method for the determination of the road clearance of a vehicle is provided. A corresponding device is provided for implementing the method.Type: GrantFiled: June 4, 2008Date of Patent: August 30, 2011Assignee: Dr. Ing. h.c. F. Porsche AGInventors: Norbert Melinat, Ralf Bauer, Thorsten Leschinski, Harald Schöffler