公开(公告)号：US20240361397A1

公开(公告)日：2024-10-31

申请号：US18556267

申请日：2022-03-10

申请人： AVILOO GmbH

发明人： Wolfgang BERGER ,  Nikolaus MAYERHOFER

IPC分类号： G01R31/392 ,  B60L58/12 ,  B60L58/16 ,  G01R31/367 ,  G01R31/388

CPC分类号： G01R31/392 ,  B60L58/12 ,  B60L58/16 ,  G01R31/367 ,  G01R31/388 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  B60L2240/70

摘要： A method for ascertaining the state of health of the vehicle battery of an electric vehicle includes charging the vehicle battery and ascertaining specified battery parameters during the charging process, and calculating the state of health of the vehicle battery using a vehicle-specific battery model on the basis of the transmitted battery parameters. A basic battery model, which is based on the vehicle battery type, in the form of an electric equivalent circuit model is first used as the vehicle-specific battery model, wherein the internal resistance and RC elements are ascertained as a function of the cell temperature and the charge state, an open circuit voltage characteristic is ascertained as a function of the charge state, and the cell temperature is ascertained using a thermal model on the basis of the measured battery pack current, EC parameters, the battery module temperature, and the ambient temperature.

公开(公告)号：US12130335B2

公开(公告)日：2024-10-29

申请号：US17613631

申请日：2020-06-05

申请人： Cummins Inc.

发明人： Guodong Fan

IPC分类号： H02J7/00 ,  B60L3/12 ,  B60L58/16 ,  G01R31/367 ,  G01R31/392

CPC分类号： G01R31/392 ,  B60L3/12 ,  B60L58/16 ,  G01R31/367 ,  B60L2260/44

摘要： A computer-implemented method for establishing a trained state of health (SOH) estimation model, the method comprising: acquiring a voltage vs. capacity (QV) data of a training battery at a first SOH within a predetermined voltage range during a charging cycle; obtaining an incremental capacity (IC) data based on at least the acquired QV data; extracting an ICA area and an ICA peak from the IC data; inputting the extracted ICA area and the ICA peak into an ICA database; repeating the acquiring, the obtaining, the extracting, and the inputting processes on the training battery at one or more additional SOHs; and establishing the trained SOH estimation model by training and testing a base SOH estimation model based on at least the ICA database using Support Vector Regression; wherein the trained SOH estimation model is configured to be used by a battery management system to monitor the health of a battery.

公开(公告)号：US12130334B2

公开(公告)日：2024-10-29

申请号：US17379246

申请日：2021-07-19

申请人： Fitbit LLC

发明人： Lawrence Shou-pung Pan

IPC分类号： H02J7/00 ,  G01R31/3842 ,  G01R31/392 ,  G04G17/08 ,  H01M10/42

CPC分类号： G01R31/392 ,  G01R31/3842 ,  G04G17/08 ,  H01M10/4257 ,  H02J7/0048 ,  H02J7/005 ,  H02J7/00712

摘要： A computer-implemented method for improved determination of state of health (SoH) of a battery of a device can include determining that the device is in a charging state such that a charge of the battery is increased over a charge procedure; determining that a state of charge (SoC) metric of the battery reported by a battery gauge system has increased by a fixed SoC interval; determining a charge time interval over which the SoC metric of the battery has increased by the fixed SoC interval; and determining a SoH metric indicative of the SoH of the battery based at least in part on the charge time interval; wherein determining the SoH metric is based at least in part on a known relationship between a reference time interval representative of time required to increase a reference battery at full SoH by the fixed SoC interval and the charge time interval.

公开(公告)号：US12123920B2

公开(公告)日：2024-10-22

申请号：US17415007

申请日：2019-12-06

申请人： Robert Bosch GmbH

发明人： Julia Ott ,  Rainer Heinrich Hoerlein ,  Shweta Vijay Pawar ,  Simon Tippmann ,  Vincent Scharff

IPC分类号： G01R31/392 ,  G01R31/3842 ,  B60L58/16

CPC分类号： G01R31/392 ,  G01R31/3842 ,  B60L58/16 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549

摘要： A method for ascertaining at least one performance characteristic for the operation of an electrical energy store is described, comprising the steps of: a) receiving operating data, in particular current and/or voltage and/or temperature measured values, of a multiplicity of electrical energy stores, wherein the multiplicity of electrical energy stores satisfy a predefined criterion, for example a predefined number of operating hours; b) ascertaining at least one ageing state variable, in particular an electrical capacitance, of the multiplicity of electrical energy stores by evaluating the operating data of the multiplicity of electrical energy stores; c) ascertaining at least one performance characteristic for the operation of an electrical energy store, in particular a maximum charging current, on the basis of the at least one ageing state variable; d) transmitting the at least one performance characteristic to a further multiplicity of electrical energy stores. Furthermore, a corresponding computer program, a corresponding machine-readable storage medium and a corresponding computer apparatus are described.

公开(公告)号：US20240345173A1

公开(公告)日：2024-10-17

申请号：US18750771

申请日：2024-06-21

申请人： DENSO CORPORATION

发明人： Satoru SHIMIZU ,  Kazuaki MAWATARI ,  Kazuyuki ONO ,  Kumiko KAWABATA ,  Hiroshige MATSUI

IPC分类号： G01R31/392 ,  G01R31/36 ,  G01R31/374 ,  G01R31/387 ,  H01M10/42 ,  H01M10/44 ,  H01M10/48

CPC分类号： G01R31/392 ,  G01R31/3646 ,  G01R31/3647 ,  G01R31/374 ,  G01R31/387 ,  H01M10/425 ,  H01M10/44 ,  H01M10/486 ,  H01M2010/4271

摘要： A battery monitoring device monitors a battery. The battery monitoring device includes a deterioration detection unit that detects a physical quantity having a higher correlation with a capacity deterioration of the battery than a voltage and a current of the battery, and a capacity ratio estimation unit that estimates a capacity ratio of the battery based on the physical quantity.

公开(公告)号：US20240345171A1

公开(公告)日：2024-10-17

申请号：US18750798

申请日：2024-06-21

申请人： Nuvoton Technology Corporation Japan

发明人： Toshio MATSUKI

IPC分类号： G01R31/388 ,  G01R31/36 ,  G01R31/367 ,  G01R31/392 ,  H01M10/44

CPC分类号： G01R31/388 ,  G01R31/3648 ,  G01R31/367 ,  G01R31/392 ,  H01M10/44

摘要： An estimation device includes a measurement data storage storing measurement data items including: the first smoothed voltage value of a storage battery, a smoothed voltage change amount obtained by subtracting the first smoothed voltage value from the second smoothed voltage value of the storage battery, and a smoothed current value measured in synchronization with measurement of the first smoothed voltage value or the second smoothed voltage value, estimates an accumulated charge change amount using a trained estimation model that receives a first smoothed voltage value in a predetermined voltage range, a smoothed voltage change amount, and a smoothed current value, updates the trained estimation model using, as correct answer data, an accumulated charge change amount obtained by integrating current values measured during obtainment of the smoothed voltage change amount, and calculates the total sum of estimated accumulated charge change amounts in the predetermined voltage range to obtain the battery status.

公开(公告)号：US12117499B2

公开(公告)日：2024-10-15

申请号：US17440394

申请日：2020-03-17

申请人： Vehicle Energy Japan Inc.

发明人： Fanny Matthey ,  Ryohhei Nakao ,  Keiichiro Ohkawa ,  Yosuke Wada

IPC分类号： H02J7/00 ,  G01R31/388 ,  G01R31/392 ,  H01M10/44 ,  H01M10/48

CPC分类号： G01R31/388 ,  G01R31/392 ,  H01M10/44 ,  H01M10/48 ,  H01M10/486 ,  H02J7/0048 ,  H02J7/005 ,  H02J7/007182

摘要： A battery management apparatus 102 is an apparatus which manages a chargeable and dischargeable battery, and includes: a battery state calculation unit 501 which calculates a state of charge SOC representing the state of charge of the battery, and a charge capacity fade SOHQ representing a deterioration degree; a mid voltage calculation unit 502 which calculates a mid voltage that is present between the discharge voltage in a current state of charge of the battery, and a voltage value representing the discharge voltage in a minimum state of charge of the battery; a remaining capacity calculation unit 503 which calculates a remaining capacity of the battery, based on the state of charge SOC and the charge capacity fade SOHQ; and an available energy calculation unit 504 which calculates available energy of the battery, based on the mid voltage and the remaining capacity.

公开(公告)号：US12105153B2

公开(公告)日：2024-10-01

申请号：US17896179

申请日：2022-08-26

申请人： DENSO CORPORATION

发明人： Takuya Ohata ,  Shogo Shigemori ,  Tatsuhiro Numata ,  Tetsuya Watanabe ,  Masaki Uchiyama ,  Taisuke Kurachi

IPC分类号： G01R31/3842 ,  G01R31/371 ,  G01R31/389 ,  G01R31/392 ,  H02J7/00

CPC分类号： G01R31/3842 ,  G01R31/371 ,  G01R31/389 ,  G01R31/392 ,  H02J7/00032 ,  H02J7/0047

摘要： A battery management system includes a monitoring device and a controller. The monitoring device is arranged in a housing accommodating a battery, monitors the battery and acquires battery monitoring information that includes information indicating a state of the battery. The controller performs wireless communication with the monitoring device and execute a predetermined process based on the battery monitoring information. The controller transmits a request for battery monitoring information to the monitoring device. The monitoring device transmits the battery monitoring information to the controller in response to the request. The controller determines whether missing of the battery monitoring information has occurred based on a correlation between the battery monitoring information acquired from the monitoring device via wireless communication and relationship information held by the controller related to the battery monitoring information.

公开(公告)号：US20240317107A1

公开(公告)日：2024-09-26

申请号：US18736139

申请日：2024-06-06

申请人： Oshkosh Corporation

发明人： Stefan Eshleman ,  Michael Bolton ,  Patrick Booth

IPC分类号： B60L58/12 ,  B60L58/18 ,  B66F11/04 ,  B66F13/00 ,  G01R31/3842 ,  G01R31/392 ,  H01M10/42 ,  H01M10/48 ,  H04Q9/00

CPC分类号： B60L58/12 ,  B60L58/18 ,  B66F13/00 ,  G01R31/3842 ,  G01R31/392 ,  H01M10/4257 ,  H01M10/482 ,  H01M10/484 ,  H01M10/486 ,  H01M10/488 ,  H04Q9/00 ,  B60L2200/40 ,  B66F11/044 ,  H01M2010/4278

摘要： A lift device includes multiple electrical components and a battery monitoring system. The battery monitoring system includes multiple batteries and a controller. The multiple batteries are configured to power the multiple electrical components. The controller is configured to obtain sensor data from the batteries. The controller is also configured to determine a state of charge of the batteries for open circuit conditions based on the sensor data. The controller is configured to determine a state of charge of the batteries for load conditions based on the sensor data. The controller is configured to determine a state of charge of the batteries for charging conditions based on the sensor data. The controller determines an overall state of charge of the batteries based on the state of charge for open circuit conditions, the state of charge of the batteries for load conditions, and the state of charge for charging conditions.

公开(公告)号：US20240310451A1

公开(公告)日：2024-09-19

申请号：US18673312

申请日：2024-05-24

申请人： FURUKAWA ELECTRIC CO., LTD. ,  FURUKAWA AUTOMOTIVE SYSTEMS INC.

发明人： Takahiro IMAMURA ,  Kiyoshi INOUE ,  Minoru ASANO ,  Atsushi UOTSU ,  Tetsuya UEDA ,  Katsuyoshi SATO

IPC分类号： G01R31/3842 ,  B60L58/12 ,  G01R31/371 ,  G01R31/392 ,  G01R31/396 ,  H02J7/00

CPC分类号： G01R31/3842 ,  B60L58/12 ,  G01R31/371 ,  G01R31/392 ,  G01R31/396 ,  H02J7/0063

摘要： A battery state detection device includes a sensor, communicator circuitry, and estimator circuitry. The sensor is configured to measure at least one of a voltage, a current, and a temperature of a rechargeable battery installed to a vehicle. The communicator circuitry is configured to obtain reference information relating to battery state detection from an external device. The estimator circuitry is configured to estimate a state of the rechargeable battery based on a measured value of the sensor. The estimator circuitry is configured to correct at least one of an estimation equation and a parameter based on the reference information.