公开(公告)号：US20190025376A1

公开(公告)日：2019-01-24

申请号：US15652973

申请日：2017-07-18

申请人： Palo Alto Research Center Incorporated

发明人： Bhaskar Saha ,  Anurag Ganguli ,  Ajay Raghavan ,  Peter Kiesel ,  Kyle Arakaki ,  Julian Schwartz

IPC分类号： G01R31/36 ,  H01M10/0525 ,  H01M10/42 ,  H01M10/44 ,  H01G11/08 ,  H01G11/06 ,  G01R15/24

CPC分类号： G01R31/3828 ,  G01R15/241 ,  G01R31/367 ,  G01R31/374 ,  G01R31/392 ,  H01G11/06 ,  H01G11/08 ,  H01G11/14 ,  H01M10/0525 ,  H01M10/054 ,  H01M10/4257 ,  H01M10/44 ,  H01M10/48

摘要： A system detects and/or predicts metal ion plating events of a metal ion energy storage device. The system includes an optical sensor disposed internally within or externally on a metal ion energy storage device wherein the optical sensor has an optical output that changes in response to strain within a metal ion energy storage device. A current sensor senses current through the metal ion energy storage device. Plating detection circuitry measures a wavelength shift in the optical output of the optical sensor and estimates a state of charge (SOC) of the metal ion energy storage device based on the current. An expected wavelength shift is determined from the estimated SOC. A plating event can be detected and/or predicted based on the difference between the expected wavelength shift and the measured wavelength shift.

公开(公告)号：US10018683B2

公开(公告)日：2018-07-10

申请号：US15315583

申请日：2015-10-30

申请人： LG CHEM, LTD.

发明人： Sung-Yul Yoon ,  Jeong-Seok Park ,  Gyong-Jin Oh ,  Young-Bo Cho

IPC分类号： H02J7/00 ,  G01R31/36 ,  G01R19/165 ,  H01M10/48

CPC分类号： G01R31/396 ,  G01R19/16542 ,  G01R31/36 ,  G01R31/382 ,  G01R31/3828 ,  G01R31/3842 ,  H01M10/48 ,  H01M10/482 ,  H02J7/0016 ,  H02J7/0021

摘要： The present disclosure relates to an open circuit voltage estimating apparatus capable of estimating an open circuit voltage even when a battery cell does not have a rest time. The open circuit voltage estimating apparatus according to an embodiment of the present disclosure includes a current measuring unit configured to measure a charge/discharge current of a battery cell; a current integrating unit configured to integrate the current measured by the current measuring unit starting from an initial time; a time calculating unit configured to calculate a critical time, that is a time in which the integrated current value integrated by the current integrating unit is within a critical range; a cell voltage measuring unit configured to measure a voltage of the battery cell; and an open circuit voltage estimating unit configured to estimate an open circuit voltage of the battery cell by calculating an average value of the voltage measured by the cell voltage measuring unit during an operation time starting from the initial time to the critical time.

公开(公告)号：US20180100897A1

公开(公告)日：2018-04-12

申请号：US15838590

申请日：2017-12-12

申请人： Renesas Electronics Corporation

发明人： Yoko Nakayama ,  Takeshi Inoue

IPC分类号： G01R31/36 ,  G06F1/26

CPC分类号： G01R31/3648 ,  G01R31/367 ,  G01R31/382 ,  G01R31/3828 ,  G01R31/389 ,  G01R31/392 ,  G06F1/263

摘要： A semiconductor integrated circuit is capable of being supplied with battery current information and battery voltage information. The semiconductor integrated circuit includes a memory function, a current integrating function, a voltage-based state of charge operating function, a current-based state of charge operating function, a comparison determination function, a correcting function, and a resistance deterioration coefficient output function. The memory function stores the relation between a state of charge of a battery and an internal resistance deterioration coefficient thereof. The full charge capacity outputted from the correcting function and the internal resistance deterioration coefficient outputted from the resistance deterioration coefficient output function are stored in the memory function when a voltage-based state of charge and a current-based state of charge compared by the comparison determination function are determined to substantially coincide with each other.

公开(公告)号：US20180059189A1

公开(公告)日：2018-03-01

申请号：US15685249

申请日：2017-08-24

申请人： Otis Elevator Company

发明人： Hans-Kilian Spielbauer ,  Donald F. Cominelli ,  Michael Peters

IPC分类号： G01R31/36

CPC分类号： G01R31/3842 ,  B66B5/027 ,  G01R19/16542 ,  G01R31/3646 ,  G01R31/367 ,  G01R31/374 ,  G01R31/382 ,  G01R31/3828 ,  G01R31/392 ,  H02J7/0047 ,  H02J2007/005

摘要： An electrical system (2) comprises a battery (26) for storing electrical energy; a battery monitoring device (22) which is configured for determining a numerical value representing the charging state of the battery (26) by setting an initial numerical value representing the charging state of the battery (26); and repeatedly determining a current operational state of the electrical system (2) and a time period (T1-T10) for which said current operational state is active; calculating a change of the charging state of the battery (26) as a function of the determined current operational state of the electrical system (2) and the time period (T1-T10) for which said current operational state is active; and updating the numerical value representing the charging state of the battery (26) by adding or subtracting the calculated change of the charging state to/from the numerical value.

公开(公告)号：US20170115355A1

公开(公告)日：2017-04-27

申请号：US15330608

申请日：2016-10-18

申请人： Oxfordian, LLC

发明人： Nicholas Dane Willard ,  Michael G. Pecht

IPC分类号： G01R31/36

CPC分类号： G01R31/3828 ,  G01R31/3648 ,  G01R31/392

摘要： A method for determining the maximum capacity a battery to store charge for the benefit of state of charge and state of health determinations, otherwise known as the maximum capacity estimator, is described. In an embodiment, a memory storage unit is used to collect input data from a battery or battery pack over the life cycle of the battery. As the battery operates, discharge cycles are analyzed to determine the similarity between different cycles throughout the operational phase. The maximum capacity at a given time for storing charge is then determined by comparing the trend of capacity loss in similar cycles and then applying that trend to the reduction of the maximum capacity of the battery. This method allows state of health and state of charge measurements to be made and updated with respect to battery degradation without the need for scheduled maintenance checks-ups such as mandatory discharge cycles or impedance/resistance measurements.

公开(公告)号：US20150369877A1

公开(公告)日：2015-12-24

申请号：US14770121

申请日：2014-02-28

申请人： CONTINENTAL AUTOMOTIVE GMBH

发明人： Henryk Frenzel ,  Andreas Aumer ,  Vinzenz Sauerer ,  Michael Weinacht ,  Christine Spörl ,  Manfred Frimberger ,  Wolfgang Weigert

IPC分类号： G01R31/36 ,  G01R1/20

CPC分类号： G01R31/364 ,  G01R1/203 ,  G01R31/374 ,  G01R31/3828

摘要： A current sensor device for measuring a current, in particular for measuring a battery current in motor vehicles, including an electric resistance element on which the current can be determined by means of a voltage, and a first and a second connection element which are electrically connected to the resistance element and are arranged on different sides of the resistance element. The resistance element and the connection elements are integrally formed.

摘要翻译： 一种电流传感器装置，用于测量电流，特别是用于测量机动车辆中的电池电流，包括可以通过电压确定电流的电阻元件，以及电连接的第一和第二连接元件 并且布置在电阻元件的不同侧上。 电阻元件和连接元件整体形成。

公开(公告)号：US20150346285A1

公开(公告)日：2015-12-03

申请号：US14655976

申请日：2013-02-28

申请人： HITACHI VEHICLE ENERGY, LTD.

发明人： Naoyuki IGARASHI ,  Keiichiro OHKAWA

IPC分类号： G01R31/36

CPC分类号： G01R31/392 ,  B60L58/12 ,  B60L58/16 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/80 ,  B60L2260/44 ,  G01R31/3828 ,  G01R31/3842 ,  G01R31/396 ,  H02J7/0021 ,  H02J7/0047 ,  H02J2007/005 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/705

摘要： A device for assessing an extent of degradation of a secondary battery, includes: a determination unit that determines whether or not a value of current flowing in the secondary battery is less than a predetermined value; a first voltage measurement unit that takes a time point at which it is determined by the determination unit that the value of the current is less than the predetermined value as being a start time point of a specific interval, and that measures a first battery voltage of the secondary battery at the start time point; a first charge amount calculation unit that obtains a first charge amount corresponding to the secondary battery based upon the measured first battery voltage; a second voltage measurement unit that, after the first battery voltage has been measured by the first voltage measurement unit, takes a time point at which it is determined by the determination unit that the value of the current is less than the predetermined value as being an end time point of the specific interval, and that measures a second battery voltage of the secondary battery at the end time point; a second charge amount calculation unit that obtains a second charge amount corresponding to the secondary battery based upon the measured second battery voltage; an integrated current amount calculation unit that obtains an integrated amount of the current flowing in the secondary battery during the specific interval; and a charge capacity calculation unit that obtains a difference between the first charge amount and the second charge amount, and that calculates a charge capacity by dividing the integrated amount of the current by the difference.

摘要翻译： 一种用于评估二次电池的劣化程度的装置，包括：确定单元，确定二次电池中流动的电流值是否小于预定值; 第一电压测量单元，其采用由所述确定单元确定所述电流值小于所述预定值的时间点作为所述特定间隔的开始时间点，并且测量所述第一电池电压 二次电池在开始时间点; 第一充电量计算单元，基于所测量的第一电池电压获得对应于二次电池的第一充电量; 在由第一电压测量单元测量第一电池电压之后，由确定单元确定电流值小于预定值的时间点，作为第二电压测量单元， 结束时间点，并且在最终时间点测量二次电池的第二电池电压; 第二充电量计算单元，基于所测量的第二电池电压获得对应于二次电池的第二充电量; 积分电流量计算单元，其获得在所述特定间隔期间在二次电池中流动的电流的积分量; 以及计费能力计算单元，其获得所述第一充电量和所述第二充电量之间的差，并且通过将所述电流的积分量除以所述差来计算充电容量。

公开(公告)号：US20150293183A1

公开(公告)日：2015-10-15

申请号：US14647134

申请日：2013-11-28

申请人： SANYO Electric Co., Ltd.

发明人： HIROSHI TENMYO ,  MUTSUHIKO TAKEDA ,  SHIN-ICHI YUASA

IPC分类号： G01R31/36

CPC分类号： G01R31/392 ,  G01R31/367 ,  G01R31/3828 ,  H01M10/48 ,  H01M10/486 ,  H01M2010/4271 ,  H02J7/0021 ,  Y02T10/7055

摘要： Current-integration estimation unit estimates the SOC of a battery by integrating the value of the current flowing through the battery. Open-circuit voltage estimation unit estimates the open-circuit voltage value of the battery from a value that includes at least the measured voltage value of the battery and indicates the state of the battery, and identifies the SOC corresponding to the open-circuit voltage value. In neither charged nor discharged state, SOC determination unit employs the SOC estimated by open-circuit voltage estimation unit. In charged or discharged state, SOC determination unit employs the SOC estimated by current-integration estimation unit without change or after correction using the SOC estimated by open-circuit voltage estimation unit. In parallel with the SOC estimation, SOH estimation unit estimates the SOH of the battery based on the variation value of the SOC employed by SOC determination unit and the integrated current value in the time period required for the variation.

摘要翻译： 电流积分估计单元通过积分流过电池的电流的值来估计电池的SOC。 开路电压估计单元从至少包括电池的测量电压值的值来估计电池的开路电压值，并指示电池的状态，并且识别与开路电压值对应的SOC 。 在充电或放电状态下，SOC判断单元采用由开路电压估计单元推定的SOC。 在充电或放电状态下，SOC判定部使用由开路电压推定部估计出的SOC而不改变或修正后的电流积分推定部估计出的SOC。 与SOC估计并行地，SOH估计单元基于SOC确定单元使用的SOC的变化值和变化所需的时间段内的积分电流值来估计电池的SOH。

公开(公告)号：US20150100260A1

公开(公告)日：2015-04-09

申请号：US14568199

申请日：2014-12-12

申请人： LG CHEM, LTD.

发明人： Won-Tae JOE ,  Sun-Young CHA

IPC分类号： G01R31/36

CPC分类号： G01R31/382 ,  G01R31/367 ,  G01R31/3828 ,  G01R31/3835 ,  H01M4/364 ,  H01M10/48 ,  H01M2004/028

摘要： Disclosed is an apparatus for estimating a state of charge (SOC) of a secondary battery which includes (i) a cathode comprising a blended cathode material having a first cathode material and a second cathode material, wherein the first and second cathode materials have different operating voltage ranges; (ii) an anode comprising an anode material; and (iii) a separator for separating the cathode from the anode. The apparatus includes a sensor configured to measure a dynamic voltage of the secondary battery during charging of the secondary battery, and a control unit configured to identify a dynamic voltage profile of the secondary battery as a transition region voltage pattern, calculate a parameter of the transition region voltage pattern, and estimate a SOC of the secondary battery from the calculated parameter by using a predetermined relationship between the parameter and the SOC.

摘要翻译： 公开了一种用于估计二次电池的充电状态（SOC）的装置，其包括（i）包括具有第一阴极材料和第二正极材料的共混阴极材料的阴极，其中第一和第二阴极材料具有不同的操作 电压范围 （ii）包含阳极材料的阳极; 和（iii）用于从阳极分离阴极的分离器。 该装置包括被配置为在二次电池充电期间测量二次电池的动态电压的传感器，以及被配置为将二次电池的动态电压分布识别为过渡区域电压模式的控制单元，计算转移的参数 区域电压模式，并且通过使用参数和SOC之间的预定关系从所计算的参数估计二次电池的SOC。

公开(公告)号：US20140320142A1

公开(公告)日：2014-10-30

申请号：US14357362

申请日：2012-10-30

申请人： RENAULT s.a.s.

发明人： Pietro Dolcini

IPC分类号： G01R35/00 ,  G01R31/36

CPC分类号： G01R35/005 ,  G01R15/202 ,  G01R31/3828 ,  G01R33/0029

摘要： A system for measuring electric current supplied by an electric battery, for example a battery in a motor vehicle, including: a Hall effect current sensor; a device for compensating for measurement errors made by the sensor, including a mechanism applying an operation close to the inverse of an operator characterizing magnetic hysteresis of the sensor to the measured current.

摘要翻译： 一种用于测量由电池（例如机动车辆中的电池）供应的电流的系统，包括：霍尔效应电流传感器; 一种用于补偿由传感器产生的测量误差的装置，包括一个机械装置，该机构将接近传感器的磁滞的操作者的反向接近测量电流。