Patents by Inventor Klaus Hoermaier
Klaus Hoermaier 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: 11552338Abstract: In accordance with an embodiment, a method includes receiving, by at least one of a plurality of battery monitoring circuits a frequency synchronization signal and measurement frequency information from a host controller, wherein the at least one of the plurality of battery monitoring circuits is connected to at least one of a plurality of battery blocks; generating, by the at least one of the plurality of battery monitoring circuits, a periodic signal based on a clock signal having a clock frequency, the measurement frequency information, and the frequency synchronization signal; obtaining, by the at least one of the plurality of battery monitoring circuits, at least one measurement value of the at least one of the plurality of battery blocks using the periodic signal; and transmitting, by the at least one of the plurality of battery monitoring circuits, the at least one measurement value to the host controller.Type: GrantFiled: January 22, 2021Date of Patent: January 10, 2023Assignee: Infineon Technologies AGInventors: Stefano Marsili, Andreas Berger, Klaus Hoermaier, Guenter Hofer, Christoph Sandner
-
Patent number: 11543461Abstract: A method for measuring a complex impedance of a plurality of battery cells in a battery pack comprises controlling an excitation current through the plurality of battery cells in the battery pack; receiving, in a single common measurement circuit, a plurality of voltage signals corresponding to the plurality of battery cells; measuring the excitation current; and calculating a complex impedance of each of the battery cells in the plurality of battery cells based on the plurality of voltage signals and the measured excitation current in a single measurement cycle using either one analog-to-digital converter (ADC) per battery cell or two matched ADCs per battery cell.Type: GrantFiled: January 16, 2020Date of Patent: January 3, 2023Assignee: Infineon Technologies AGInventors: Andreas Berger, Klaus Hoermaier, Guenter Hofer, Stefano Marsili, Akshay Misra, Matthias Rose, Christian Winkler
-
Patent number: 11372054Abstract: A device for battery impedance measurement includes a switched capacitor network, a controller configured to operate the switched capacitor network to cause an alternating current to flow between a battery and an energy storage; and measurement circuitry configured to measure the alternating current flowing to or from the battery and a voltage across the battery.Type: GrantFiled: October 18, 2019Date of Patent: June 28, 2022Assignee: INFINEON TECHNOLOGIES AGInventors: Stefano Marsili, Klaus Hoermaier, Akshay Misra, Filippo Rosetti
-
Patent number: 11280844Abstract: Various examples relate to techniques of monitoring a reliability of a cell-impedance measurement of a battery cell. In one example, a device includes a first interface configured to inject an AC excitation current into a battery cell and a shunt resistor coupled in parallel to the battery cell. The device also includes a second interface configured to inject an AC test current into the shunt resistor. The device also includes analog-to-digital converters configured to measure a cell voltage across the battery cell associated with the AC excitation current, a shunt voltage across the shunt resistor associated with the AC excitation current and the shunt voltage across the shunt resistor associated with the AC test current.Type: GrantFiled: February 3, 2020Date of Patent: March 22, 2022Assignee: Infineon Technologies AGInventors: Klaus Hoermaier, Guenter Hofer, Stefano Marsili
-
Patent number: 11108499Abstract: In accordance with an embodiment, a method of transferring data includes determining, by a first device, a data check field of a data frame based on a predetermined identification field and a plurality of data bits, wherein the predetermined identification field represents at least one of a content, source or target of the plurality of data bits; and transmitting, by the first device to a second device, the data frame comprising the plurality of data bits and the data check field without directly transmitting the predetermined identification field.Type: GrantFiled: September 17, 2020Date of Patent: August 31, 2021Assignee: INFINEON TECHNOLOGIES AGInventors: Klaus Hoermaier, Jens Barrenscheen, Christian Heiling, Guenter Hofer
-
Publication number: 20210223327Abstract: A method for measuring a complex impedance of a plurality of battery cells in a battery pack comprises controlling an excitation current through the plurality of battery cells in the battery pack; receiving, in a single common measurement circuit, a plurality of voltage signals corresponding to the plurality of battery cells; measuring the excitation current; and calculating a complex impedance of each of the battery cells in the plurality of battery cells based on the plurality of voltage signals and the measured excitation current in a single measurement cycle using either one analog-to-digital converter (ADC) per battery cell or two matched ADCs per battery cell.Type: ApplicationFiled: January 16, 2020Publication date: July 22, 2021Inventors: Andreas Berger, Klaus Hoermaier, Guenter Hofer, Stefano Marsili, Akshay Misra, Matthias Rose, Christian Winkler
-
Publication number: 20210151806Abstract: In accordance with an embodiment, a method includes receiving, by at least one of a plurality of battery monitoring circuits a frequency synchronization signal and measurement frequency information from a host controller, wherein the at least one of the plurality of battery monitoring circuits is connected to at least one of a plurality of battery blocks; generating, by the at least one of the plurality of battery monitoring circuits, a periodic signal based on a clock signal having a clock frequency, the measurement frequency information, and the frequency synchronization signal; obtaining, by the at least one of the plurality of battery monitoring circuits, at least one measurement value of the at least one of the plurality of battery blocks using the periodic signal; and transmitting, by the at least one of the plurality of battery monitoring circuits, the at least one measurement value to the host controller.Type: ApplicationFiled: January 22, 2021Publication date: May 20, 2021Inventors: Stefano Marsili, Andreas Berger, Klaus Hoermaier, Guenter Hofer, Christoph Sandner
-
Patent number: 10944133Abstract: In accordance with an embodiment, a method includes receiving, by at least one of a plurality of battery monitoring circuits a frequency synchronization signal and measurement frequency information from a host controller, wherein the at least one of the plurality of battery monitoring circuits is connected to at least one of a plurality of battery blocks; generating, by the at least one of the plurality of battery monitoring circuits, a periodic signal based on a clock signal having a clock frequency, the measurement frequency information, and the frequency synchronization signal; obtaining, by the at least one of the plurality of battery monitoring circuits, at least one measurement value of the at least one of the plurality of battery blocks using the periodic signal; and transmitting, by the at least one of the plurality of battery monitoring circuits, the at least one measurement value to the host controller.Type: GrantFiled: January 11, 2019Date of Patent: March 9, 2021Assignee: INFINEON TECHNOLOGIES AGInventors: Stefano Marsili, Andreas Berger, Klaus Hoermaier, Guenter Hofer, Christoph Sandner
-
Publication number: 20210006353Abstract: In accordance with an embodiment, a method of transferring data includes determining, by a first device, a data check field of a data frame based on a predetermined identification field and a plurality of data bits, wherein the predetermined identification field represents at least one of a content, source or target of the plurality of data bits; and transmitting, by the first device to a second device, the data frame comprising the plurality of data bits and the data check field without directly transmitting the predetermined identification field.Type: ApplicationFiled: September 17, 2020Publication date: January 7, 2021Inventors: Klaus Hoermaier, Jens Barrenscheen, Christian Heiling, Guenter Hofer
-
Patent number: 10841039Abstract: In accordance with an embodiment, a method of transferring data includes determining, by a first device, a data check field of a data frame based on a predetermined identification field and a plurality of data bits, wherein the predetermined identification field represents at least one of a content, source or target of the plurality of data bits; and transmitting, by the first device to a second device, the data frame comprising the plurality of data bits and the data check field without directly transmitting the predetermined identification field.Type: GrantFiled: October 30, 2018Date of Patent: November 17, 2020Assignee: INFINEON TECHNOLOGIES AGInventors: Klaus Hoermaier, Jens Barrenscheen, Christian Heiling, Guenter Hofer
-
Publication number: 20200256924Abstract: Various examples relate to techniques of monitoring a reliability of a cell-impedance measurement of a battery cell. In one example, a device includes a first interface configured to inject an AC excitation current into a battery cell and a shunt resistor coupled in parallel to the battery cell. The device also includes a second interface configured to inject an AC test current into the shunt resistor. The device also includes analog-to-digital converters configured to measure a cell voltage across the battery cell associated with the AC excitation current, a shunt voltage across the shunt resistor associated with the AC excitation current and the shunt voltage across the shunt resistor associated with the AC test current.Type: ApplicationFiled: February 3, 2020Publication date: August 13, 2020Inventors: Klaus Hoermaier, Guenter Hofer, Stefano Marsili
-
Publication number: 20200136754Abstract: In accordance with an embodiment, a method of transferring data includes determining, by a first device, a data check field of a data frame based on a predetermined identification field and a plurality of data bits, wherein the predetermined identification field represents at least one of a content, source or target of the plurality of data bits; and transmitting, by the first device to a second device, the data frame comprising the plurality of data bits and the data check field without directly transmitting the predetermined identification field.Type: ApplicationFiled: October 30, 2018Publication date: April 30, 2020Inventors: Klaus Hoermaier, Jens Barrenscheen, Christian Heiling, Guenter Hofer
-
Publication number: 20200132781Abstract: Devices and methods for impedance measurements are provided. A switched capacitor network is operated to cause an alternating current to flow between a battery and an energy storage, and the alternating current and a voltage across the battery are measured.Type: ApplicationFiled: October 18, 2019Publication date: April 30, 2020Inventors: Stefano Marsili, Klaus Hoermaier, Akshay Misra, Filippo Rosetti
-
Publication number: 20190221893Abstract: In accordance with an embodiment, a method includes receiving, by at least one of a plurality of battery monitoring circuits a frequency synchronization signal and measurement frequency information from a host controller, wherein the at least one of the plurality of battery monitoring circuits is connected to at least one of a plurality of battery blocks; generating, by the at least one of the plurality of battery monitoring circuits, a periodic signal based on a clock signal having a clock frequency, the measurement frequency information, and the frequency synchronization signal; obtaining, by the at least one of the plurality of battery monitoring circuits, at least one measurement value of the at least one of the plurality of battery blocks using the periodic signal; and transmitting, by the at least one of the plurality of battery monitoring circuits, the at least one measurement value to the host controller.Type: ApplicationFiled: January 11, 2019Publication date: July 18, 2019Inventors: Stefano Marsili, Andreas Berger, Klaus Hoermaier, Guenter Hofer, Christoph Sandner