公开(公告)号：US11108499B2

公开(公告)日：2021-08-31

申请号：US17024191

申请日：2020-09-17

Applicant: Infineon Technologies AG

Inventor： Klaus Hoermaier ,  Jens Barrenscheen ,  Christian Heiling ,  Guenter Hofer

IPC: G06F11/00 ,  H03M13/00 ,  H04L1/00

Abstract: 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.

公开(公告)号：US11280844B2

公开(公告)日：2022-03-22

申请号：US16780345

申请日：2020-02-03

Applicant: Infineon Technologies AG

Inventor： Klaus Hoermaier ,  Guenter Hofer ,  Stefano Marsili

IPC: G01R31/396 ,  G01R31/3835 ,  G01R31/389

Abstract: 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.

公开(公告)号：US11543461B2

公开(公告)日：2023-01-03

申请号：US16744892

申请日：2020-01-16

Applicant: Infineon Technologies AG

Inventor： Andreas Berger ,  Klaus Hoermaier ,  Guenter Hofer ,  Stefano Marsili ,  Akshay Misra ,  Matthias Rose ,  Christian Winkler

IPC: G01R31/396 ,  H03M1/12 ,  G01R31/3842 ,  G01R31/389 ,  G01R31/392

Abstract: 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.

公开(公告)号：US20210151806A1

公开(公告)日：2021-05-20

申请号：US17156010

申请日：2021-01-22

Applicant: Infineon Technologies AG

Inventor： Stefano Marsili ,  Andreas Berger ,  Klaus Hoermaier ,  Guenter Hofer ,  Christoph Sandner

IPC: H01M10/42 ,  H01M10/48 ,  G01R31/389 ,  G01R31/396 ,  G01R31/382

Abstract: 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.

公开(公告)号：US20210006353A1

公开(公告)日：2021-01-07

申请号：US17024191

申请日：2020-09-17

Applicant: Infineon Technologies AG

Inventor： Klaus Hoermaier ,  Jens Barrenscheen ,  Christian Heiling ,  Guenter Hofer

IPC: H04L1/00

Abstract: 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.

公开(公告)号：US20200256924A1

公开(公告)日：2020-08-13

申请号：US16780345

申请日：2020-02-03

Applicant: Infineon Technologies AG

Inventor： Klaus Hoermaier ,  Guenter Hofer ,  Stefano Marsili

IPC: G01R31/396 ,  G01R31/389 ,  G01R31/3835

Abstract: 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.

公开(公告)号：US11552338B2

公开(公告)日：2023-01-10

申请号：US17156010

申请日：2021-01-22

Applicant: Infineon Technologies AG

Inventor： Stefano Marsili ,  Andreas Berger ,  Klaus Hoermaier ,  Guenter Hofer ,  Christoph Sandner

IPC: H01M10/42 ,  H01M10/48 ,  G01R31/389 ,  G01R31/396 ,  G01R31/382

Abstract: 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.

公开(公告)号：US11372054B2

公开(公告)日：2022-06-28

申请号：US16657259

申请日：2019-10-18

Applicant: Infineon Technologies AG

Inventor： Stefano Marsili ,  Klaus Hoermaier ,  Akshay Misra ,  Filippo Rosetti

IPC: G01R31/389 ,  G01R31/36

Abstract: 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.

公开(公告)号：US20210223327A1

公开(公告)日：2021-07-22

申请号：US16744892

申请日：2020-01-16

Applicant: Infineon Technologies AG

Inventor： Andreas Berger ,  Klaus Hoermaier ,  Guenter Hofer ,  Stefano Marsili ,  Akshay Misra ,  Matthias Rose ,  Christian Winkler

IPC: G01R31/396 ,  H03M1/12 ,  G01R31/389 ,  G01R31/3842 ,  G01R31/392

Abstract: 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.

公开(公告)号：US10944133B2

公开(公告)日：2021-03-09

申请号：US16245700

申请日：2019-01-11

Applicant: Infineon Technologies AG

Inventor： Stefano Marsili ,  Andreas Berger ,  Klaus Hoermaier ,  Guenter Hofer ,  Christoph Sandner

IPC: H01M10/42 ,  H01M10/48 ,  G01R31/389 ,  G01R31/396 ,  G01R31/382

Abstract: 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.