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公开(公告)号：US11561247B2
公开(公告)日：2023-01-24
申请号：US17234165
申请日：2021-04-19
Applicant: Infineon Technologies AG
Inventor： Michael Krug , Felix Weidner , Christian Walther
Abstract: A device configured to monitor a voltage at a voltage rail for driving a motor includes processing circuitry configured to receive an indication of a switching signal for a phase of a plurality of phases of the motor. Inverter circuitry associated with the device is configured to electrically couple the phase to the voltage rail or to a reference rail associated with the voltage rail based on a driving signal that is generated based on the switching signal. The processing circuitry is further configured to determine a measurement time to measure the voltage at the voltage rail based on the switching signal and generate, using an analog-to-digital converter (ADC), a set of measured voltage values based on the voltage at the voltage rail during the measurement time.
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公开(公告)号：US20210132156A1
公开(公告)日：2021-05-06
申请号：US17144813
申请日：2021-01-08
Applicant: Infineon Technologies AG
Inventor： Felix Weidner , Jesus Ruiz Sevillano , Maximilian Hofer
IPC: G01R31/396 , G01R31/36 , H01M10/42
Abstract: A method for providing battery diagnostics includes: measuring a first voltage across a first battery cell of a rechargeable battery via a first measurement path of a network using a first measurement circuit, measuring the first voltage including taking at least one first voltage sample during a first time period using the first measurement circuit; measuring a second voltage across the first battery cell via a second measurement path of the network using a second measurement circuit, measuring the second voltage including taking at least one second voltage sample during the first time period using the second measurement circuit, where the second measurement path of the network is different from the first measurement path of the network; comparing the measured first voltage with the measured second voltage; and generating a diagnostic output signal based on the comparison.
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Patent Agency Ranking
公开(公告)号：US11656294B2
公开(公告)日：2023-05-23
申请号：US17144813
申请日：2021-01-08
Applicant: Infineon Technologies AG
Inventor： Felix Weidner , Jesus Ruiz Sevillano , Maximilian Hofer
IPC: G01R31/396 , G01R31/36 , H01M10/42 , H01M50/569 , H01M10/48
CPC classification number: G01R31/396 , G01R31/3648 , H01M10/4285 , H01M10/482 , H01M50/569
Abstract: A method for providing battery diagnostics includes: measuring a first voltage across a first battery cell of a rechargeable battery via a first measurement path of a network using a first measurement circuit, measuring the first voltage including taking at least one first voltage sample during a first time period using the first measurement circuit; measuring a second voltage across the first battery cell via a second measurement path of the network using a second measurement circuit, measuring the second voltage including taking at least one second voltage sample during the first time period using the second measurement circuit, where the second measurement path of the network is different from the first measurement path of the network; comparing the measured first voltage with the measured second voltage; and generating a diagnostic output signal based on the comparison.
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公开(公告)号：US20220334155A1
公开(公告)日：2022-10-20
申请号：US17234165
申请日：2021-04-19
Applicant: Infineon Technologies AG
Inventor： Michael Krug , Felix Weidner , Christian Walther
Abstract: A device configured to monitor a voltage at a voltage rail for driving a motor includes processing circuitry configured to receive an indication of a switching signal for a phase of a plurality of phases of the motor. Inverter circuitry associated with the device is configured to electrically couple the phase to the voltage rail or to a reference rail associated with the voltage rail based on a driving signal that is generated based on the switching signal. The processing circuitry is further configured to determine a measurement time to measure the voltage at the voltage rail based on the switching signal and generate, using an analog-to-digital converter (ADC), a set of measured voltage values based on the voltage at the voltage rail during the measurement time.
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公开(公告)号：US10901045B2
公开(公告)日：2021-01-26
申请号：US15923635
申请日：2018-03-16
Applicant: Infineon Technologies AG
Inventor： Felix Weidner , Jesus Ruiz Sevillano , Maximilian Hofer
IPC: G01R31/396 , G01R31/36 , H01M10/42
Abstract: A method for providing battery diagnostics includes: measuring a first voltage across a first battery cell of a rechargeable battery via a first measurement path of a network using a first measurement circuit, measuring the first voltage including taking at least one first voltage sample during a first time period using the first measurement circuit; measuring a second voltage across the first battery cell via a second measurement path of the network using a second measurement circuit, measuring the second voltage including taking at least one second voltage sample during the first time period using the second measurement circuit, where the second measurement path of the network is different from the first measurement path of the network; comparing the measured first voltage with the measured second voltage; and generating a diagnostic output signal based on the comparison.
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公开(公告)号：US20240186814A1
公开(公告)日：2024-06-06
申请号：US18061069
申请日：2022-12-02
Applicant: Infineon Technologies AG
Inventor： Christian Walther , Christian Heiling , Felix Weidner , Heinrich Trebo
IPC: H02J7/00 , G01R31/374 , G01R31/3835 , H01M10/42 , H01M10/48
CPC classification number: H02J7/007194 , G01R31/374 , G01R31/3835 , H01M10/4257 , H01M10/482 , H02J7/0013 , H01M2010/4271 , H01M2220/20
Abstract: Circuitry to measure individual battery cells of a battery pack and make corrections to account for environmental differences between battery cells and their associated measuring circuit. Several cell supervision circuits (CSCs) may be placed to monitor and manage one or more subsets of battery cells within the battery pack. The temperature of this battery pack is not distributed homogeneously which may cause a temperature gradient and affect the internal regulation circuit that generates a reference voltage used to determine the voltage of its supervised cell or cells and regulates power to the CSC components. This reference voltage is temperature dependent and thus a temperature mismatch of the CSCs. Based on the measurement circuit an external regulation terminal controls a pass device to share power between the pass device and the internal regulation circuit to manage the temperature of each CSC.
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7.发明申请公开(公告)号：US20190285699A1
公开(公告)日：2019-09-19
申请号：US15923635
申请日：2018-03-16
Applicant: Infineon Technologies AG
Inventor： Felix Weidner , Jesus Ruiz Sevillano , Maximilian Hofer
Abstract: A method for providing battery diagnostics includes: measuring a first voltage across a first battery cell of a rechargeable battery via a first measurement path of a network using a first measurement circuit, measuring the first voltage including taking at least one first voltage sample during a first time period using the first measurement circuit; measuring a second voltage across the first battery cell via a second measurement path of the network using a second measurement circuit, measuring the second voltage including taking at least one second voltage sample during the first time period using the second measurement circuit, where the second measurement path of the network is different from the first measurement path of the network; comparing the measured first voltage with the measured second voltage; and generating a diagnostic output signal based on the comparison.
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