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71. 发明公开

US20230333171A1 HIGH USE BATTERY PACK MAINTENANCE 审中-公开
公开(公告)号：US20230333171A1
公开(公告)日：2023-10-19
申请号：US18337203
申请日：2023-06-19
申请人： Midtronics, Inc.
发明人： Kevin I. Bertness
IPC分类号： G01R31/385 , B60L3/00 , B60L58/18 , B60L53/65 , B60L53/80 , B60L50/62 , B60L58/21 , B60L3/12 , H01M10/42 , H01M10/54 , B60L50/60 , G01R31/36 , G01R31/396 , G01R31/392 , B60L58/12
CPC分类号： G01R31/385 , B60L3/0046 , B60L58/18 , B60L53/65 , B60L53/80 , B60L50/62 , B60L58/21 , B60L3/12 , H01M10/4207 , H01M10/4285 , H01M10/54 , B60L50/66 , G01R31/36 , G01R31/396 , G01R31/392 , B60L58/12 , B60L2240/545 , Y02T90/14 , Y02T10/7072 , H01M2220/20 , Y04S30/14 , Y02W30/84 , Y02T10/62 , Y02T10/70 , Y02T90/12 , Y02T90/16 , Y02T90/167
摘要： A method of repairing a used battery pack from an electric vehicle include removing the battery pack from the vehicle. Battery tests are performed on at least some of the plurality of batteries and a battery test result for each of the batteries tested are obtained and stored in a database. A plurality of replacement batteries are tested and test results for each of the replacement batteries are stored in the database. The battery test results from the database are retrieved and used to create a refurbished battery pack. An apparatus includes a database for storing test results.

72. 发明公开

US20230314516A1 DISCHARGE VOLTAGE GRAPH PREDICTION METHOD AND BATTERY SYSTEM USING THE SAME 审中-公开
公开(公告)号：US20230314516A1
公开(公告)日：2023-10-05
申请号：US18025110
申请日：2021-12-23
申请人： LG ENERGY SOLUTION, LTD.
发明人： Sun Jong LEE , Cheoltaek KIM
IPC分类号： G01R31/367 , H01M10/48 , G01R31/382 , G01R31/36 , G01R31/396
CPC分类号： G01R31/367 , H01M10/48 , G01R31/382 , G01R31/3648 , G01R31/396 , H01M2010/4271
摘要： A method for predicting a constant current discharge graph for a battery cell according to one feature of the invention includes: measuring a first time required for the battery cell voltage to decrease to a first discharge limit voltage by a first constant current discharge; measuring a second time required for the battery cell voltage to decrease to a second discharge limit voltage by a second constant current discharge; and calculating a proportional constant and an index parameter in the relationship between the constant current and the discharge time during a discharging based on the first constant current and the first time, and the second constant current and the second time.

73. 发明授权

US11774503B2 Battery life learning device, battery life prediction device, method and non-transitory computer readable medium 有权
公开(公告)号：US11774503B2
公开(公告)日：2023-10-03
申请号：US17686587
申请日：2022-03-04
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Ryosuke Takahashi , Norimitsu Tsutsui
IPC分类号： G01R31/367 , G01R31/36 , G01R31/392 , B60L58/16
CPC分类号： G01R31/367 , B60L58/16 , G01R31/3648 , G01R31/392
摘要： A battery life learning device including a learning section configured to obtain a learned prediction model for predicting a remaining life of a vehicle battery from time-series data of a deterioration characteristic of the vehicle battery, the learned prediction model being obtained by learning a prediction model from the time-series data of the deterioration characteristic of the vehicle battery based on learning data, the learning data including time-series data of the deterioration characteristic at a predetermined time point in the past of a vehicle battery for learning that has reached an end of life and the remaining life at the predetermined time point of the vehicle battery for learning.

74. 发明公开

US20230294550A1 DISPLAY SYSTEM AND VEHICLE INCLUDING THE SAME, AND METHOD OF DISPLAY OF STATUS OF SECONDARY BATTERY 审中-公开
公开(公告)号：US20230294550A1
公开(公告)日：2023-09-21
申请号：US18324309
申请日：2023-05-26
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Yoshiki SUGINO , Yoshihiro UCHIDA , Nobuyuki TANAKA , Junta IZUMI , Kazuki KUBO
IPC分类号： B60L58/12 , B60L58/16 , H02J7/00 , G01R31/36
CPC分类号： B60L58/12 , B60L58/16 , H02J7/0048 , G01R31/3648 , B60L2250/16
摘要： A vehicle includes: an instrument panel; and an ECU that controls the instrument panel so that the instrument panel displays an icon representing a status of a battery. The icon represents one of a first indication and a second indication by an increase or decrease of a scale in a display region of the icon, and the other one of the first indication and the second indication by an amount indicated by a size of a display area of the icon, the first indication representing SOC of the battery, the second indication representing a full charge capacity of the battery.

75. 发明公开

US20230280400A1 DEVICE FOR MEASURING RESISTANCE AND INTERNAL RESISTANCE USING RESONANT OSCILLATION 审中-公开
公开(公告)号：US20230280400A1
公开(公告)日：2023-09-07
申请号：US18098149
申请日：2023-01-18
申请人： QUOC BAO LE , TAI GIA HUA
发明人： QUOC BAO LE , TAI GIA HUA
IPC分类号： G01R31/36 , G01R31/389
CPC分类号： G01R31/3644 , G01R31/389
摘要： The present invention relates to a device for measuring resistance and internal resistance using resonant oscillation comprising: an output resonant oscillating unit having an output connectors connected to a target object to be measured resistance or internal resistance to form a closed circuit and causing the resonant oscillation in the closed circuit; an inductive pulse generating unit for generating inductive pulses according to a pulse frequency, so that generating an output induced current in the closed circuit; and a measurement unit. While there is an output induced current appeared in the output resonant oscillating unit will generate a measurement inductive current in the measurement unit and measured and calculated to determine the resistance value of the target object to be measured resistance or internal resistance. The output resonant oscillating unit including an output inductive copper bar and a measurement inductive copper bar, both play a role for generating the inductance in the closed circuit which is composed by the output resonant oscillating unit and the target object to be measured resistance or internal resistance for coupling with the resonant capacitor assembly generating resonance oscillations while there is a suitable pulse frequency; play a role for generating the electromagnetic induction with the output resonant oscillating unit and the measurement unit; and play a role for generating at least a part of load bearing structure of the mounting structure. In addition, the present invention may be capable to determine the natural oscillation frequency of the closed circuit which is composed by the output resonant oscillating unit and the target object to be measured resistance or internal resistance.

76. 发明公开

US20230273264A1 Battery Diagnosis Device, Battery Diagnosis Method, Battery Pack, and Electric Vehicle 审中-公开
公开(公告)号：US20230273264A1
公开(公告)日：2023-08-31
申请号：US17924443
申请日：2021-12-16
申请人： LG Energy Solution, Ltd.
发明人： Young-Jin Kim
IPC分类号： G01R31/392 , G01R31/3842 , G01R31/367 , G01R31/36 , H01M10/48 , B60L58/16
CPC分类号： G01R31/392 , G01R31/3842 , G01R31/367 , G01R31/3648 , H01M10/48 , B60L58/16 , H01M2220/20
摘要： A battery diagnosis apparatus includes a voltage sensor to generate a voltage signal indicating a battery voltage of a battery, a current sensor to generate a current signal indicating a battery current flowing through the battery and a control circuit. The control circuit determines a measured capacity curve over a predetermined set voltage range based on the voltage signal and the current signal collected at each unit time for a constant current period during which the battery is charged or discharged at a predetermined current rate over the set voltage range. The control circuit determines a measured differential curve over the set voltage range based on the measured capacity curve. The control circuit determines whether a negative electrode tortuosity of the battery abnormally increased by comparing the measured differential curve with a reference differential curve

77. 发明公开

US20230266398A1 METHOD TO COMPENSATE MEASUREMENT ERROR IN A BATTERY MANAGEMENT SYSTEM 审中-公开
公开(公告)号：US20230266398A1
公开(公告)日：2023-08-24
申请号：US18155017
申请日：2023-01-16
申请人： Analog Devices International Unlimited Company
发明人： Richard Rudolph Beauchemin, III , Cuyler Nicholas Latorraca , Patrick Wilhelm
IPC分类号： G01R31/388 , G01R31/374 , G01R31/36 , G01R31/389
CPC分类号： G01R31/388 , G01R31/374 , G01R31/3648 , G01R31/389
摘要： Voltage measurement techniques for battery cells in a battery management system (BMS) are described. Raw voltage measurements may include errors caused by ohmic losses due to cable impedances and other elements in the BMS. The techniques include performing a calibration cycle to generate correction values based on measured response with discharge switches in different states. The techniques also include scaling the correction values during runtime to correct for filter response errors in the voltage measurement.

78. 发明公开

US20230228821A1 INTELLIGENT BATTERY DEVICE AND BATTERY SYSTEM 审中-公开
公开(公告)号：US20230228821A1
公开(公告)日：2023-07-20
申请号：US17565599
申请日：2021-12-30
申请人： Volvo Car Corporation
发明人： JONAS FORSSELL
IPC分类号： G01R31/385 , G01R31/36 , H01M10/42 , G01R31/367 , G01R31/396
CPC分类号： G01R31/385 , G01R31/367 , G01R31/396 , G01R31/3644 , H01M10/4285
摘要： One or more systems, devices, and/or system-implemented methods are provided that can facilitate provision of varying AC output voltage or DC output voltage, including selectively separately providing a positive voltage output, a negative voltage output and no voltage output. A device can comprise a battery cell, and a controller connected to the battery cell and that varies output from the battery cell, wherein the controller is configured to cause the battery cell to selectively separately provide negative output voltage, positive output voltage and no output voltage. A method can comprise varying output polarity from a multi-cell battery cluster and selectively providing one or both of alternating current (AC) voltage output or direct current (DC) voltage output from the multi-cell battery cluster due to the varying of the output polarity.

79. 发明公开

US20230198279A1 METHOD FOR CONTROLLING BATTERY POWER LIMIT VALUE 审中-公开
公开(公告)号：US20230198279A1
公开(公告)日：2023-06-22
申请号：US18110677
申请日：2023-02-16
申请人： LG ENERGY SOLUTION, LTD.
发明人： Hae In CHOI
IPC分类号： H02J7/00 , G01R31/36
CPC分类号： H02J7/007182 , H02J7/00302 , G01R31/3648 , H02J7/0013
摘要： Discussed is a method for managing a battery that includes a plurality of battery cells, the method including a reference charging power limit setting operation of setting a referential predetermined charging power limit, and a real-time charging power limit setting operation of calculating a real-time charging power limit in real-time according to a real-time voltage of the battery and setting a real-time charging power limit of the battery. The real-time voltage of the battery is determined based on a voltage of one battery cell among the plurality of battery cells.

80. 发明公开

US20230194613A1 TEST METHOD AND MANUFACTURING METHOD 审中-公开
公开(公告)号：US20230194613A1
公开(公告)日：2023-06-22
申请号：US18170363
申请日：2023-02-16
申请人： HIRATA CORPORATION
发明人： Toshihiko KANEKO
IPC分类号： G01R31/36 , G01R31/396 , H01M10/48 , H01M10/42 , H01M10/44 , H01M10/04
CPC分类号： G01R31/3644 , G01R31/396 , H01M10/482 , H01M10/4285 , H01M10/441 , H01M10/0404
摘要： A test method of a battery cell is provided. In a placement step, a device places, in a test tray, a magazine in which a plurality of battery cells are arrayed and stored. The test tray includes a pressurization mechanism configured to press, in an array direction, the plurality of battery cells. In a pressurization step, the plurality of battery cells is pressed by the pressurization mechanism. In a transfer step, the test tray storing the magazine is transferred between a preparation area where the magazine is placed in the test tray in the placement step and a test area. In a test step, in the test area, a test concerning charge/discharge of the plurality of battery cells is performed in the test area in a state in which the plurality of battery cells are pressurized by the pressurization mechanism.

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