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11.发明申请公开(公告)号：US20220355697A1
公开(公告)日：2022-11-10
申请号：US17313088
申请日：2021-05-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Michelle H. Wiebenga , Anil Bika , Wei Li , Mark W. Verbrugge , Charles W. Wampler , Chaitanya Sankavaram
Abstract: Presented are control systems for operating rechargeable electrochemical devices, methods for making/using such systems, and motor vehicles with intelligent battery pack charging and charging behavior feedback capabilities. A method of operating a rechargeable battery includes an electronic controller receiving battery data from a battery sensing device indicative of a battery state of charge (SOC). Using this battery data, the controller determines a number of low SOC excursions at which the battery SOC is below a predefined low SOC threshold and a number of high SOC excursions at which the battery SOC exceeds a predefined high SOC threshold. The controller then determines if the number of low SOC excursions exceeds a predefined maximum allowable low excursions and/or the number of high SOC excursions exceeds a predefined maximum allowable high excursions. If so, the controller responsively commands a resident subsystem to execute a control operation that mitigates degradation of the rechargeable battery.
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公开(公告)号：US11204391B2
公开(公告)日：2021-12-21
申请号：US16570205
申请日：2019-09-13
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Charles W. Wampler , Justin R. McDade
IPC: G01R31/387 , H01M10/44 , G01R31/3842 , G01R31/392 , H02J7/00 , G01R31/367
Abstract: A method and system for monitoring a charge capacity of a battery includes determining a predicted charge capacity and a first uncertainty parameter based upon the current, voltage, and temperature of the battery, wherein the predicted charge capacity is determined by executing a charge capacity degradation model. A measured charge capacity and an associated second uncertainty parameter of the battery are also determined, by executing a charge capacity update routine. A charge capacity estimate for the battery is determined based upon the predicted charge capacity and the measured charge capacity, and an updated uncertainty parameter for the charge capacity estimate is determined based upon the first and the second uncertainty parameters. An estimated covariance parameter, and a covariance ratio are determined based upon the updated uncertainty parameter and the estimated covariance parameter. A remedial battery management operation is commanded based upon the uncertainty parameter for the charge capacity estimate.
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公开(公告)号：US11668759B2
公开(公告)日：2023-06-06
申请号：US17350681
申请日：2021-06-17
Applicant: GM Global Technology Operations LLC
Inventor： James R. Salvador , Debejyo Chakraborty , Ryan Curtis Sekol , Thomas A. Yersak , Sean R. Wagner , Charles W. Wampler , Ronald M. Lesperance , Raffaello Ardanese , Thanh-Son Dao , Dmitriy Bruder
IPC: G01R31/396 , H01M10/42 , G01N30/02 , G01F22/00 , G01N33/00 , G01R31/382
CPC classification number: G01R31/396 , G01F22/00 , G01N30/02 , G01N33/0027 , G01R31/382 , H01M10/4285 , G01N2030/025
Abstract: A method of analyzing the quality of a battery cell includes performing a high-throughput quality check on the battery cell with a quality control system, assessing a quality score to the battery cell, with quality score identifying the battery cell as low-quality or high-quality, and performing a comprehensive quality check on the battery cell if identified as low-quality. The method further includes assessing an enhanced quality score to the battery cell superseding the quality score of the quality control system identifying the battery cell as confirmed low-quality or confirmed high-quality and providing revised production instructions for manufacturing successive battery cells if confirmed low-quality.
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公开(公告)号：US20210239762A1
公开(公告)日：2021-08-05
申请号：US16782677
申请日：2020-02-05
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Alfred Zhang , Charles W. Wampler
IPC: G01R31/367 , G01R31/3835 , G01R31/396 , H01M10/48 , H01M10/44
Abstract: An apparatus and method for tracking a battery cell is disclosed, for a device having one or more sensors and a controller with a processor and tangible, non-transitory memory. The method includes obtaining respective sensor data relative to an anode and a cathode. A predicted anode capacity and predicted cathode capacity are determined based on the respective sensor data. The predicted anode capacity and predicted cathode capacity each have a respective variance value. An updated set of variables and updated respective variance values are generated based in part on the predicted anode capacity, the predicted cathode capacity and a measured equilibrium voltage, via a Kalman filter module executed by the controller. The updated set of variables include an updated anode capacity and an updated cathode capacity. Operation of the device is controlled based in part on the updated set of variables and updated respective variance values.
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公开(公告)号：US20210080506A1
公开(公告)日：2021-03-18
申请号：US16570205
申请日：2019-09-13
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Charles W. Wampler , Justin R. McDade
IPC: G01R31/387 , G01R31/3842 , H01M10/44
Abstract: A method and system for monitoring a charge capacity of a battery includes determining a predicted charge capacity and a first uncertainty parameter based upon the current, voltage, and temperature of the battery, wherein the predicted charge capacity is determined by executing a charge capacity degradation model. A measured charge capacity and an associated second uncertainty parameter of the battery are also determined, by executing a charge capacity update routine. A charge capacity estimate for the battery is determined based upon the predicted charge capacity and the measured charge capacity, and an updated uncertainty parameter for the charge capacity estimate is determined based upon the first and the second uncertainty parameters. An estimated covariance parameter, and a covariance ratio are determined based upon the updated uncertainty parameter and the estimated covariance parameter. A remedial battery management operation is commanded based upon the uncertainty parameter for the charge capacity estimate.
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Patent Agency Ranking
公开(公告)号：US10418622B2
公开(公告)日：2019-09-17
申请号：US15794049
申请日：2017-10-26
Applicant: GM Global Technology Operations LLC
Inventor： Brian J. Koch , Charles W. Wampler , Mark W. Verbrugge , Daniel R. Baker
IPC: H02J7/00 , B60L11/00 , H01M4/13 , H01M2/00 , H01M10/00 , B60L11/18 , H01M2/10 , H01M10/42 , H01M10/44 , H01M10/48
Abstract: Disclosed are battery management systems with control logic for battery state estimation (BSE), methods for making/using/assembling a battery cell with a reference electrode, and electric drive vehicles equipped with a traction battery pack and BSE capabilities. In an example, a battery cell assembly includes a battery housing with an electrolyte composition stored within the battery housing. The electrolyte composition transports ions between working electrodes. A first working (anode) electrode is attached to the battery housing in electrochemical contact with the electrolyte composition. Likewise, a second working (cathode) electrode is attached to the battery housing in electrochemical contact with the electrolyte composition. A reference electrode is interposed between the first and second working electrodes, placed in electrochemical contact with the electrolyte composition. The reference electrode and one or both working electrodes cooperate to output a half-cell voltage signal that is indicative of a battery state of the battery cell assembly.
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17.发明申请公开(公告)号：US20190126770A1
公开(公告)日：2019-05-02
申请号：US15794049
申请日：2017-10-26
Applicant: GM Global Technology Operations LLC
Inventor： Brian J. Koch , Charles W. Wampler , Mark W. Verbrugge , Daniel R. Baker
CPC classification number: H01M4/13 , B60L58/12 , H01M2/1077 , H01M10/425 , H01M10/44 , H01M10/48 , H02J7/00
Abstract: Disclosed are battery management systems with control logic for battery state estimation (BSE), methods for making/using/assembling a battery cell with a reference electrode, and electric drive vehicles equipped with a traction battery pack and BSE capabilities. In an example, a battery cell assembly includes a battery housing with an electrolyte composition stored within the battery housing. The electrolyte composition transports ions between working electrodes. A first working (anode) electrode is attached to the battery housing in electrochemical contact with the electrolyte composition. Likewise, a second working (cathode) electrode is attached to the battery housing in electrochemical contact with the electrolyte composition. A reference electrode is interposed between the first and second working electrodes, placed in electrochemical contact with the electrolyte composition. The reference electrode and one or both working electrodes cooperate to output a half-cell voltage signal that is indicative of a battery state of the battery cell assembly.
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公开(公告)号：US20180059190A1
公开(公告)日：2018-03-01
申请号：US15246609
申请日：2016-08-25
Applicant: GM Global Technology Operations LLC
Inventor： MARK W. VERBRUGGE , Charles W. Wampler , Bob R. Powell, JR.
IPC: G01R31/36
CPC classification number: G01R31/396 , G01R31/367 , G01R31/3842 , G01R31/392 , G01R31/40
Abstract: A number of variations may include products and methods for estimating the state of an energy system. At least one sensor may monitor a voltage and a current of the energy storage system. An electronic controller may be communicatively coupled with the energy storage system and may receive input from the sensor. A circuit may be representative of the energy storage system and may be appropriately defined in the electronic controller. The circuit may estimate a state of the energy storage system from a reading of the voltage and the current.
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公开(公告)号：US11300626B2
公开(公告)日：2022-04-12
申请号：US16743839
申请日：2020-01-15
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Charles W. Wampler , Alfred Zhang
IPC: G01R31/392 , G01R31/3828 , G01R31/374 , G01R31/3842
Abstract: A method for battery capacity estimation is provided. The method includes, within a computerized processor, monitoring a sensor operable to gather data regarding a battery, determining a voltage-based state of charge for the battery based upon the data from the sensor, determining a capacity degradation value for the battery based upon the data from the sensor, determining an integrated current value through Coulomb counting based upon the data from the sensor, determining a predicted battery state of charge for the battery based upon the capacity degradation value and the integrated current value, processing the voltage-based state of charge and the predicted battery state of charge using a Kalman filter to generate an updated overall battery capacity estimate, and using the updated overall battery capacity estimate to control management of the battery.
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公开(公告)号：US20210336462A1
公开(公告)日：2021-10-28
申请号：US16859322
申请日：2020-04-27
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Meixian Wang , Yue-Yun Wang , Houchun Xia , Justin Bunnell , Charles W. Wampler
IPC: H02J7/00 , G01R31/389 , G01R31/3842 , G01R31/396 , B60L58/12 , B60L53/62 , B60L15/20
Abstract: A method for estimating a state of a battery pack using a controller having battery state estimator (BSE) logic includes receiving or delivering a constant baseline current via the battery pack. Current oscillations having time-variant frequency content are selectively injected into the baseline current via the controller in response to a predetermined condition. The baseline current and the current oscillations combine to form a final current. The method includes estimating a battery parameter via the BSE logic concurrently with the current oscillations to generate an estimated battery parameter, and estimating the present state of the battery pack via the controller using the estimated battery parameter. An electrical system includes a rotary electric machine that is electrically connected to and driven by the battery pack, and a controller configured to execute the method.
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