WO2021123468A1 - Método y sistema para calcular la energía disponible en una batería eléctrica en cualquier momento de su vida, sin descargarla, así como su autonomía, capacidad y vida remanente - Google Patents
Método y sistema para calcular la energía disponible en una batería eléctrica en cualquier momento de su vida, sin descargarla, así como su autonomía, capacidad y vida remanente Download PDFInfo
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- WO2021123468A1 WO2021123468A1 PCT/ES2020/000058 ES2020000058W WO2021123468A1 WO 2021123468 A1 WO2021123468 A1 WO 2021123468A1 ES 2020000058 W ES2020000058 W ES 2020000058W WO 2021123468 A1 WO2021123468 A1 WO 2021123468A1
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- battery
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/367—Software therefor, e.g. for battery testing using modelling or look-up tables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/16—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/3644—Constructional arrangements
- G01R31/3648—Constructional arrangements comprising digital calculation means, e.g. for performing an algorithm
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
- G01R31/387—Determining ampere-hour charge capacity or SoC
- G01R31/388—Determining ampere-hour charge capacity or SoC involving voltage measurements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
Definitions
- This patent belongs to! electricity sector, more specifically the electrochemical sector, and specifically the battery sector, both rechargeable and single-use.
- ED Available Energy of a battery
- This method calculates it at all times of your life; that is, when it has aged, it has made unknown partial discharges since its last charge, and all this at any temperature.
- the state of the ED of a battery is affected by multiple circumstances: such as old age, previous cycling, the electrochemical stress suffered, the partial discharges since the last recharge and the temperatures at which they have been carried out, including that of the battery at the time of analysis, etc.
- the display shows the state of charge by showing the 100% data and, frequently, a small green battery full in one corner. But when it is old and freshly charged, the same information also appears and the autonomy is much less.
- B, W, A Generic name of batteries. B is reserved for those that are new, charged, fully formed, and at rest. Batteries that are the object of this method are called W, with a certain old age and some charge, even new ones, at any moment of their life, and at any temperature. W and B are initially the same battery, it is called B when it is new and W when it is old. A is used for equivalent batteries that are new and charged, that is, those type B which will have an ED identical to the remaining energy available in the battery W under analysis.
- BEC It is the Electric Consumption Balance. Note that such balance must be very complete, including not only discharges, but also charges, such as those from braking in an EV. And any current that can cause stress to the battery such as extra opening and closing currents, harmonics, etc., and also the foreseeable temperatures during each charge or consumption.
- This Batanee is usually variable depending on the time. Putting the EV again as an example, to obtain it you must enter the electrical charges due to the chosen speed, the driving style, the weight and load of! vehicle, and the use or not of other consumers. If it is necessary to achieve more autonomy, the BEC can be changed by introducing lower requirements, in order to increase it. Some of the information may in turn be fixed, such as the slopes or slopes of a road to travel, or dynamic, and even alien to our performance, such as a variable temperature during such a journey. It is assumed that the EV has access to the forecasts or telematic information. It can be equipped with an alarm if consumption or autonomy changes. It is not the object of this patent to analyze or obtain the BEC that is taken for granted. c) Capacity, It is the ability of a battery to, given certain circumstances, transform the maximum power! electrochemical possible into useful electricity. And, if it is rechargeable, it measures its ability to transform electricity into the maximum possible electrochemical potential, It is measured in Ah,
- C N It is the capacity of an equivalent battery A that is found as result of this method. It will be equal to or less than the C N of the analyzed battery. It also has a generic meaning. g) C N. It is the capacity at temperature T N of a battery W that at T N had a capacity of C N. At a temperature below the norm it is less than C N. There is a curve that relates them. This curve is valid at any time in its life. H) Remanent charge, useful electrical energy is also called charge. When a discharge is partial or the temperature does change, the charge that remains available in the battery is called the remaining charge or remaining energy, which are an approximation to ED, the difference being the minimum non-operating charge.
- V f Available energy, ED. It is the maximum energy that can be obtained from a battery W at any time in its life, discharging it under certain conditions, until reaching the final voltage V f . All batteries, especially rechargeable batteries, have a final discharge voltage, which varies according to the intensity of discharge. In rechargeable batteries, this V f is the minimum that should not be exceeded, since it is an irreversible deterioration of the battery. On the other hand, it is usually close to the minimum operating voltage of the equipment it supplies.
- the level or amount of percentage charge remaining in the battery W, compared to the maximum that the capacity at that moment allows, is called the state of charge.
- the capacity has nothing to do with the state of charge, nor with the open circuit voltage when charged. It is necessary to know simultaneously the capacity and the state of charge to know what the DE is.
- G n 1.0
- 1.0 which is the family corresponding to the temperature T n , at which battery B has a capacity of C n .
- a discharge equal to 1.0 C n Amp is chosen. for batteries They follow that they have, for example, capacities of 0.3 C n , 0.5 C n , 07 C n , and C n Ah. These curves allow their interpolation. See Figure 1. m) ID, li, l N. Discharge intensity, and also in plural. The first two spellings are generic. With the second, it is possible to refer to a set of generic discharge intensities ii, which by varying the subscript makes it possible to represent various specific intensities.
- the reference norm is l N.
- MCU Micro Controler Unit
- CPUs Central Processing Unit
- microprocessors memories, algorithms, software, etc.
- Standard Ascribed to our sector, it is the set of rules, formulations, criteria, specifications and technical standards that imitate, specify, typify and define the parameters that characterize batteries.
- the Standard can be dictated by anyone, but it is highly recommended to follow the known ones. In our case, specific for each technology the working temperature, discharge time and intensity, nominal and minimum voltage Vf at different discharge intensities, standard capacity! C N and minimum C m, among other things. All measurements and curves must follow this Standard. Each technology and Standard have different curves.
- p personallyIt is the percentage of electrochemical potential or ED of an equivalent battery A with capacity C, which has been consumed by carrying out an incomplete discharge over the total initial potential !. Therefore, ED (1 - p) is equal to the remaining ED, p) Electrochemical potential, It is the resident energy in certain chemical substances that, correctly activated, can provide electrical energy.
- the battery is a suitable container that contains a series of products with electrochemical potential, and it is the physical medium where the reaction takes place that transforms such potential energy into electricity.
- the potential energy of a charged battery and a discharged battery are different.
- the first situation is called active electrochemical potential, and the second passive electrochemical potential.
- SAI Acronym for Uninterruptible Power Supply. In English UPS.
- r System. Name of the device that allows automating the calculation of the method, for which it comprises a set of elements such as MCU, memories, microprocessors, electronic circuits, algorithm processor, voltmeter, arrester, ammeter, temperature sensor, stopwatch, ability to calculate parameters and generate curves, also including an adapter, the corresponding software and hardware, interface, etc., which allows us to report the variables and receive the results, and even consider information via telematics. Occasionally it is also called a Battery Management System, in English BftflS.
- SLA-AGM Acronym for Sealed Lead Acid and Absorbed G ⁇ ass Material, which translates to hermetic lead acid with fiberglass spacers. It is the battery technology that this patent uses as an example, since it is possibly the most popular, mature, and with a fairly stable evolution, t) SOC. Acronym for State of charge, which translates to state of charge. Very frequently used in the sector. u) t N. Nominal time. It is the time that the norm sets that must elapse when battery B is discharged at intensity l N , at temperature T N and without the voltage falling below V f .
- T N It is the temperature that the Standard proposes to measure the normalized values, and particularly during the basic generation of curves. When the temperature varies, the subscript "n", T n , is used generically. Usually T n is between -30 ° C, and 80 ° C. There is a curve that relates it to capacity. If a 1 Ah battery is required at different temperatures, the energy cost will be different.
- Nominal voltage VN It is defined by the electrochemical battery construction technology. This voltage or voltage results from the algebraic sum of the normal reduction and oxidation potentials at 25 ° C of the electrodes. Thus, and as an example, it is calculated below for a lead battery.
- the normalized oxidation potential of the positive electrode PbO 2 , cathode, at 25 8 C is of the order of +170 Volts.
- the reduction potential is about -0'33 Volts. Add 2 ⁇ 3 Volts. You have to subtract the negative. And this is your V N. It can go up or down with the acid concentration, hence the measurement of the density of the electrolyte in open batteries gives an idea of its state of charge, since the discharge breaks down part of the acid in water. Charging the battery involves a reverse electricity circulation, and the electrodes will reverse their polarity.
- Pulses of any type can also be used.
- the status of the battery must be taken into account as far as it is known so that it is sympathetic to the ID. It is always advisable to start with the minimum operational downloads. In general they usually vary between 0.1 C n and 2 C n Amp. In the case of SLA-AGM, you can start between 0.6 C n and 1 C n Amp,
- This method is applicable to any W battery at any time in its life. If the current capacity is known from previous measurements, even if it is out of date, it should be based on that value instead of the value of the nominal capacity when it was new. However, it remains the assumption that no prior information is available.
- the autonomy can be calculated at the desired temperature. Even assuming that the temperatures and the discharges that occur are variable.
- Capacity can also be calculated. After a recharge, when we observe that the charger does not supply appreciable electricity to the battery, we disconnect it and calculate ED. This value turns out to be the battery capacity W at the measurement temperature. If the battery is primary, the ED matches its capacity at all times.
- the remaining life t R can be calculated. It should be clarified that the correct use of the term expected life t W serves to specify the maximum useful life of a new product under certain circumstances. The same concept can be used for batteries. It is more interesting to find in our patent the remaining life te, that is, the remaining useful life from any moment. It is convenient to start from the knowledge of the LM and LD curves, which are provided by the manufacturer and which can be standardized.
- the battery W which is analyzed, has generated a curve Lw up to a point P (t P , C R ), at which point it is of interest to know the remaining life t R
- the coordinate tp is the time elapsed since its entry into service until you want to know the remaining life t R.
- a temperature sensor is required to measure the temperature of the W battery at the time of analysis. This data allows us to know the capacity C n at said temperature T n when it was new, by means of the corresponding curve.
- the sensor supplies the temperature of W, which turns out to be TV. Using the corresponding curve, it is possible to know the capacity of the battery W, when it was new, B, at such a temperature, which turns out to be C n .
- the battery is connected, and the arrester adjusts the initial ID h, following the user's criteria and the recommendations given in the Theoretical Base. If there are reasons to think that, given the conditions of the battery, it may have a capacity less than C n , iaID is appropriately lowered. This intensity must be the same as that used to generate G n , l .
- the autonomy known as the BEC can be found. An example is given below.
- a battery W with its known ED, correspond to an equivalent capacity of C 1 .
- the BEC informs that two different consecutive D 1 and D 2 discharges will be carried out.
- the first D 1 at intensity l 1 and temperature T 1 , has a duration of t 1 . It is understood that this discharge does not drain the battery.
- the second discharge D 2 is carried out , which consists of an ID of faith, at a temperature T 2 , and for the maximum time that said remaining energy allows. It is interesting to calculate said autonomy.
- the combination of the proposed downloads makes it possible to address all possible consumption approaches.
- the percentage p of W energy that Di consumes over the total available is then calculated.
- the ED provides the capacity. And with the curve of its evolution over time, its expected life t W and the remainder t R , provided that the subsequent treatment that the battery will receive is known.
- FIG 2 a simplified diagram showing the flow of actions to find ED is represented, known the data that define the battery W. This diagram is not complete for the sake of clarity of the exposition. For example, the steps that apply to V 1 asking about stability, cycle counter etc., have been saved in V 2 and V 3 . Knowing C 1 , C 2 or C 3 means knowing A 1 , A 2 or A 3 , and therefore ED.
- Figure 3 represents a simplified diagram that follows the automated process of the patented method applied to a device, that is, of the Preferred Application.
- the objective is to manufacture a device that automates the method presented to find the DE of a battery W.
- the simplified flow diagram according to Figure 3 is followed. It can be portable or not, and with adjustment capacity depending on the characteristics of the different batteries that you want to analyze in certain ranges of voltages or capacities. Or adapt from the beginning to a particular battery.
- a system is required that includes an interface, an adapter, an arrester, temperature sensor, voltmeter, ammeter, stopwatch, an MCU and the necessary software to record, memorize and analyze the curves produced by the arrester and compare them with those it has in memory using the algorithms provided, etc.
- This software will control the device as well as communications with external equipment. It is enabled for the technology and standard that the battery manufacturer specifies and it is much easier if you prepare for a specific battery. In this way, its use includes the following steps:
- the manufacturer first informs about the battery technology, as well as its capacity C N , its nominal voltage VN, curves, etc. when it was new B.
- the sensor supplies the temperature at which the battery is, T n .
- T n the temperature at which the battery is, the System specifies the capacity C n , which is the one that corresponds to B, and which is the best approximation that we have in the first analysis.
- the System can choose to display it on an interface, or supply it to another equipment that needs it, which is easily integrated into the device we already have.
- the System ammeter detects that there is a continuous and stable discharge. If the discharge does not have these conditions, instantaneous and simultaneous values must be measured.
- the ammeter provides the System with the current consumption l 2 , the voltmeter the voltage V 2 , the sensor the battery temperature W, T n , and C n is calculated. The steps outlined below follow.
- C 3 should be similar to C 2 . However, and since the battery is not at rest, nor balanced, the measurements may be altered. The capacity found last C 3 is probably more exact, but it is reasonable to calculate a weight by giving the weight to each one according to what the specific application advises. Additional consecutive iterative measurements can also be made by changing the discharge etc. After this calculation, the DE is known, at the measurement temperature, that is the equivalent battery A 3 .
- Another application is to find the battery capacity. If a charge is finished e! The system detects that the charger does not supply any intensity or is very small, disconnects said charger and proceeds to calculate ED. Under such conditions, the ED found coincides with the battery capacity.
- the System saves in memory the capacities found over a period of time, generates a curve and extrapolates it, considering its database where L M and L D are , and knowing the foreseeable treatment, allows to obtain the expected life t W and the remainder t R.
- the treatment will be similar to that previously received.
- the rapid response of this device allows a more efficient use of battery power, as well! as a more correct maintenance, and even prematurely locate any anomaly. Or match the cells of a pack being manufactured. All this means optimizing the performance and life of the battery with the corresponding cost savings.
- the Preferred Realization coincides with the Industrial Application.
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA3162201A CA3162201A1 (en) | 2019-12-18 | 2020-12-15 | Method and system for calculating the energy available in an electric battery at any moment during the life thereof, without discharging same, and the autonomy, capacity and remaining life thereof |
KR1020227022901A KR20220112284A (ko) | 2019-12-18 | 2020-12-15 | 전기 배터리의 수명 중 언제든지 방전 없이 이용 가능한 에너지, 자율성, 용량 및 잔여 수명을 계산하는 방법 및 시스템 |
US17/615,277 US20220308113A1 (en) | 2019-12-18 | 2020-12-15 | Method and system for calculating the energy available in an electric battery at any moment during the life thereof, without discharging same, and the autonomy, capacity and remaining life thereof |
CN202080088081.9A CN114846346A (zh) | 2019-12-18 | 2020-12-15 | 计算电池在其寿命内任何时刻的可用能量及其自主性、容量和剩余寿命而不对其放电的方法和系统 |
BR112022010658A BR112022010658A2 (pt) | 2019-12-18 | 2020-12-15 | Método e sistema para calcular a energia disponível em uma bateria elétrica em qualquer momento de sua vida útil, sem descarregá-la, bem como sua autonomia, capacidade e vida útil remanescente |
EP20901506.4A EP3974852A4 (en) | 2019-12-18 | 2020-12-15 | METHOD AND SYSTEM FOR CALCULATING THE ENERGY AVAILABLE IN AN ELECTRIC BATTERY AT ANY TIME OF ITS LIFE, WITHOUT DISCHARGE, AS WELL AS ITS AUTONOMY, ITS CAPACITY AND REMAINING LIFE |
MX2022006717A MX2022006717A (es) | 2019-12-18 | 2020-12-15 | Metodo y sistema para calcular la energia disponible en una bateria electrica en cualquier momento de su vida, sin descargarla, asi como su autonomia, capacidad, y vida remanente. |
JP2022533328A JP2023506405A (ja) | 2019-12-18 | 2020-12-15 | 使用期間における任意の時間において、放電することなく、電気バッテリで利用可能なエネルギーと、同様にその自主性と、容量と、残存使用期間とを計算するための方法及びシステム |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES201900184A ES2739535B9 (es) | 2019-12-18 | 2019-12-18 | Metodo y sistema para calcular la energia disponible en una bateria electrica en cualquier momento de su vida. sin descargarla, asi como su autonomia, capacidad. y vida remanente |
ESP201900184 | 2019-12-18 |
Publications (1)
Publication Number | Publication Date |
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WO2021123468A1 true WO2021123468A1 (es) | 2021-06-24 |
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Family Applications (1)
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PCT/ES2020/000058 WO2021123468A1 (es) | 2019-12-18 | 2020-12-15 | Método y sistema para calcular la energía disponible en una batería eléctrica en cualquier momento de su vida, sin descargarla, así como su autonomía, capacidad y vida remanente |
Country Status (10)
Country | Link |
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US (1) | US20220308113A1 (es) |
EP (1) | EP3974852A4 (es) |
JP (1) | JP2023506405A (es) |
KR (1) | KR20220112284A (es) |
CN (1) | CN114846346A (es) |
BR (1) | BR112022010658A2 (es) |
CA (1) | CA3162201A1 (es) |
ES (1) | ES2739535B9 (es) |
MX (1) | MX2022006717A (es) |
WO (1) | WO2021123468A1 (es) |
Families Citing this family (1)
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CN112462186B (zh) * | 2020-11-18 | 2022-09-20 | 上海稊米汽车科技有限公司 | 一种用于超级电容器循环寿命的测试方法 |
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US7619417B2 (en) | 2002-12-31 | 2009-11-17 | Midtronics, Inc. | Battery monitoring system |
US20110004428A1 (en) * | 2008-07-02 | 2011-01-06 | Harumi Murochi | Service life estimation method for lead storage battery and power source system |
CN106646267A (zh) * | 2017-02-13 | 2017-05-10 | 云南电网有限责任公司电力科学研究院 | 配电终端电池寿命检测方法及装置 |
US9692088B2 (en) | 2013-04-12 | 2017-06-27 | Primearth Ev Energy Co., Ltd | Method for restoring battery capacity, method for restoring battery pack capacity, device for restoring battery capacity, and device for restoring battery pack capacity |
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JP6033155B2 (ja) * | 2013-03-29 | 2016-11-30 | 日立オートモティブシステムズ株式会社 | 電池制御装置 |
CN107210608B (zh) * | 2015-06-17 | 2020-03-31 | 株式会社东芝 | 模拟信号生成装置及模拟信号生成方法及存储介质 |
US10060987B2 (en) * | 2016-11-18 | 2018-08-28 | Semiconductor Components Industries, Llc | Methods and apparatus for measuring the remaining capacity of a battery |
US10312699B2 (en) * | 2017-07-31 | 2019-06-04 | Robert Bosch Gmbh | Method and system for estimating battery open cell voltage, state of charge, and state of health during operation of the battery |
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2019
- 2019-12-18 ES ES201900184A patent/ES2739535B9/es active Active
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2020
- 2020-12-15 WO PCT/ES2020/000058 patent/WO2021123468A1/es unknown
- 2020-12-15 CN CN202080088081.9A patent/CN114846346A/zh active Pending
- 2020-12-15 BR BR112022010658A patent/BR112022010658A2/pt unknown
- 2020-12-15 US US17/615,277 patent/US20220308113A1/en active Pending
- 2020-12-15 JP JP2022533328A patent/JP2023506405A/ja active Pending
- 2020-12-15 EP EP20901506.4A patent/EP3974852A4/en active Pending
- 2020-12-15 KR KR1020227022901A patent/KR20220112284A/ko active Search and Examination
- 2020-12-15 MX MX2022006717A patent/MX2022006717A/es unknown
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Also Published As
Publication number | Publication date |
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EP3974852A1 (en) | 2022-03-30 |
ES2739535A1 (es) | 2020-01-31 |
CN114846346A (zh) | 2022-08-02 |
MX2022006717A (es) | 2022-07-12 |
ES2739535B2 (es) | 2020-10-07 |
US20220308113A1 (en) | 2022-09-29 |
ES2739535B9 (es) | 2020-12-02 |
EP3974852A4 (en) | 2022-08-31 |
CA3162201A1 (en) | 2021-06-24 |
BR112022010658A2 (pt) | 2022-08-16 |
KR20220112284A (ko) | 2022-08-10 |
JP2023506405A (ja) | 2023-02-16 |
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