CN109031135A - A kind of rechargeable battery SOC estimation device - Google Patents
A kind of rechargeable battery SOC estimation device Download PDFInfo
- Publication number
- CN109031135A CN109031135A CN201810649453.5A CN201810649453A CN109031135A CN 109031135 A CN109031135 A CN 109031135A CN 201810649453 A CN201810649453 A CN 201810649453A CN 109031135 A CN109031135 A CN 109031135A
- Authority
- CN
- China
- Prior art keywords
- rechargeable battery
- soc
- deterioration
- battery
- mode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of rechargeable battery SOC estimation devices, it is used to estimate the remaining capacity of battery, described device includes: storage unit and data processing unit, the deterioration of the rechargeable battery is wherein divided into multistage deterioration mode, wherein in first order deterioration mode, the rechargeable battery has the smallest capacity reduction characteristic relative to the time；And every time in first class mode, the rechargeable battery has relative to the bigger capacity reduction characteristic relative to the time of previous stage deterioration mode；Wherein the data processing unit is configured to: being determined the deterioration mode of the rechargeable battery and is selected coefficient corresponding with deterioration mode from storage unit to estimate the SOC of the rechargeable battery.
Description
Technical field
The present invention relates to rechargeable battery fields, can accurately estimate estimating for rechargeable battery SOC in particular to one kind
Counter device.
Background technique
SOC is also remaining capacity, representative be residual capacity after battery is lain idle using a period of time or for a long time with
The ratio of the capacity of its fully charged state, commonly using percentage indicates.The capacity of general battery core is as storage time is with linear side
Formula is reduced, and the capacity attenuation rate during storage under higher temperature is higher.It was found that based on current impulse measurement the internal resistance of cell with
Storage time and increase.And battery is also equipped with different deterioration mode or deterioration stage, the voltage after current impulse 1s declines meter
The internal resistance that the internal resistance of calculation and the voltage decline after current impulse 20s calculate has under the conditions of all deterioration stages and all deteriorations
About 76% same ratio, it means that deterioration can in a similar manner influence Fast Process (Ohmic resistance, polarization resistance) and
Slower process (diffusion).Ohm and polarization resistance with storage time increase and increase, and the increasing degree of polarization resistance is compared and
Yan Geng great.The time constant of polarization process, and polarization semicircle all increase as time increases.The internal resistance measured after 1s pulse
Value is completely the same with the sum of EIS ohm analyzed and polarization resistance, shows that the current dependence of polarization resistance is very low.It has been observed that
The result of deterioration research obviously receives the influence of SOC setting method, this phenomenon is carried out many similar to service life of lithium battery
It is ignored in research.It is contemplated that the lithium battery true service life is longer than common experimental result.SOC setting up procedure is specific
There is great influence, qualitative assessment also needs to design special experiment and conducts further research.The service life of battery includes battery
Cycle life and storage life.Wherein cycle life refers to that battery reaches end in service life during Operation mode cycle or regular circulation
The only required time；Service life be defined be such that refer to battery under certain reference temperature, open-circuit condition reach end-of-life institute
The time needed, the i.e. service life of battery in the stand-by state.Also there is the research for carrying out service life of lithium battery test under constant-pressure conditions.Always
It, the service life is influence of the passage to battery performance that the time is had evaluated under conditions of minimum electrochemical cell use.For energy type
For power battery, performance evaluation is mainly based on energy response or capacity characteristic, the research of auxiliary power characteristic.General definition
Battery end of life when capacity retention ratio reaches 80%.Power and surface impedance ASI are in inverse relation, therefore interim measurement is electric
The impedance in pond, when impedance rises to some numerical value (corresponding power attenuation to just meet system requirements), the power battery service life is whole
Only.In deterioration, capacity attenuation and power attenuation depend on time, discharge and recharge and operating parameter: temperature, charged state
(SOC), current amplitude and depth of discharge (DOD).Distinguish lithium ion battery is by circulating effect factor and to put with period deterioration
Set the process of influence factor decoupling, i.e., the generation of degradation mechanism with it is related with cyclic process or only related with the process of shelving,
It is another direction of life search.Other than capacity attenuation, also have in documents lithium ion battery deterioration process
The variation of battery impedance.In most cases, the increase of internal resistance, it is considered to be the interfacial film constantly grown on two electrodes
Bring influences.
It carries out Parameter analysis and EIS test test result reflects that the Conventional electrochemical parameter of electrode is the main of service life
Influence factor influences the capacity attenuation of battery core, including the increased variation of internal resistance.For deterioration of battery degree, electricity
The deterioration in pond is found to deposit in the different stages or the duration of mode, the estimation formula of SOC under different phase or mode
Should be different, do not propose the technical solution that its SOC is estimated for different degradations also in this field.
Summary of the invention
The invention proposes a kind of rechargeable battery SOC estimation device, it is used to carry out the remaining capacity (SOC) of battery
Estimation, described device includes: storage unit and data processing unit, wherein the deterioration of the rechargeable battery is divided into multistage bad
Change mode, wherein the rechargeable battery has special relative to the smallest capacity reduction of time in first order deterioration mode
Property；And every time in first class mode, the rechargeable battery has bigger relative to the time relative to previous stage deterioration mode
Capacity reduces characteristic；Wherein, storage unit is used to store between the SOC and floating voltage of the battery in every level-one deterioration mode
The correlation data of correlation, and the data processing unit continues to monitor and indicates the SOC and the zero load to outside
Correlation between voltage and the data of the correlation are updated to the storage unit；
It is characterized in that, wherein the data processing unit is configured to: determining the deterioration of the rechargeable battery
Mode and select corresponding with deterioration mode coefficient to estimate the SOC of the rechargeable battery from storage unit, wherein
The SOC is estimated in first order deterioration mode in the following ways: first detecting the rechargeable battery in battery zero load
Then floating voltage detects its electric current when battery has load, the electric current is obtained polarization electromotive force multiplied by the internal resistance of battery,
The floating voltage is obtained to calculate voltage plus the polarization electromotive force, the SOC is then estimated according to the calculating voltage,
And the SOC is estimated in other deterioration modes and is first estimated to obtain after SOC a reference value according to first order deterioration mode using described
Corresponding coefficient is multiplied by obtaining the SOC estimation under other deterioration modes after the SOC a reference value.
Further, the data processing unit determines in processing in the mode based on the rechargeable battery element
Internal resistance determines the deterioration mode of the rechargeable battery energy-storage travelling wave tube.
Further, the data processing unit is based on the measured value of the voltage and current of the battery detected to calculate
State internal resistance.
Further, first correlation data and second correlation data are stored as institute by the storage unit
State the floating voltage of SOC and the rechargeable battery energy-storage travelling wave tube and the correlation data between the cell during discharge time or
Chart.
Further, the determining deterioration mode further comprises the data processing unit chargeable electricity
The resistance increment rate of the internal resistance of pond energy-storage travelling wave tube and preset resistance increment rate threshold value, belonging to the determination rechargeable battery
Deterioration mode；Alternatively, the storage unit stores the rechargeable battery energy-storage travelling wave tube its unloaded electricity under different deterioration modes
Pressure and the correlation data between SOC and continuous discharging time, and the data processing unit is according to the correlation data
With deterioration mode belonging to the determination rechargeable battery.
Advantageous effects obtained by the present invention are: the remaining capacity of more accurate estimation battery and when calculating
Consider the polarization of battery.
Specific embodiment
In order to enable the objectives, technical solutions, and advantages of the present invention are more clearly understood, below in conjunction with embodiment, to this
Invention is further elaborated；It should be appreciated that described herein, the specific embodiments are only for explaining the present invention, and does not have to
It is of the invention in limiting.To those skilled in the art, after access is described in detail below, other systems of the present embodiment
System, method and/or feature will become obvious.All such additional systems, method, feature and advantage are intended to be included in
It in this specification, is included within the scope of the invention, and by the protection of the appended claims.In description described in detail below
The other feature of the disclosed embodiments, and these characteristic roots will be apparent according to described in detail below.
Embodiment one.
This gives a kind of rechargeable battery SOC estimation device, be used for the remaining capacity (SOC) of battery into
Row estimation, described device includes: storage unit and data processing unit, wherein the deterioration of the rechargeable battery is divided into multistage
Deterioration mode, wherein the rechargeable battery has the smallest capacity reduction relative to the time in first order deterioration mode
Characteristic；And every time in first class mode, the rechargeable battery has bigger relative to the time relative to previous stage deterioration mode
Capacity reduce characteristic；Wherein, storage unit is used to store between the SOC and floating voltage of the battery in every level-one deterioration mode
Correlation correlation data, and the data processing unit continues to monitor and indicates the SOC and the sky to outside
It carries the correlation between voltage and the data of the correlation is updated to the storage unit；The wherein data processing list
Member is configured to: being determined the deterioration mode of the rechargeable battery and is selected from storage unit opposite with deterioration mode
The coefficient answered is to estimate the SOC of the rechargeable battery, wherein estimating that the SOC is used with lower section in first order deterioration mode
Formula: first detecting the floating voltage of the rechargeable battery in battery zero load, its electric current then detected when battery has load, will
The electric current obtains polarization electromotive force multiplied by the internal resistance of battery, and the floating voltage is calculated plus the polarization electromotive force
Then voltage estimates the SOC according to the calculating voltage, and estimate the SOC first according to first in other deterioration modes
Grade deterioration mode is estimated to obtain after SOC a reference value using the corresponding coefficient multiplied by obtaining other after the SOC a reference value
SOC estimation under deterioration mode.The data processing unit is determined in the mode is based on the rechargeable battery in processing
The internal resistance of element determines the deterioration mode of the rechargeable battery energy-storage travelling wave tube.Further, the data processing unit is based on
The measured value of the voltage and current of the battery detected calculates the internal resistance.Further, the storage unit is by the phase
Close property data be stored as the SOC and the rechargeable battery energy-storage travelling wave tube floating voltage and the cell during discharge time it
Between correlation data or chart.
Further, the determining deterioration mode further comprises the data processing unit chargeable electricity
The resistance increment rate of the internal resistance of pond energy-storage travelling wave tube and preset resistance increment rate threshold value, belonging to the determination rechargeable battery
Deterioration mode；Alternatively, the storage unit stores the rechargeable battery energy-storage travelling wave tube its unloaded electricity under different deterioration modes
Pressure and the correlation data between SOC and continuous discharging time, and the data processing unit is according to the correlation data
With deterioration mode belonging to the determination rechargeable battery.
Embodiment two.
This gives a kind of rechargeable battery SOC estimation device, be used for the remaining capacity (SOC) of battery into
Row estimation, described device includes: storage unit and data processing unit, wherein the deterioration of the rechargeable battery is divided into multistage
Deterioration mode, wherein the rechargeable battery has the smallest capacity reduction relative to the time in first order deterioration mode
Characteristic；And every time in first class mode, the rechargeable battery has bigger relative to the time relative to previous stage deterioration mode
Capacity reduce characteristic；Wherein, storage unit is used to store between the SOC and floating voltage of the battery in every level-one deterioration mode
Correlation correlation data, and the data processing unit continues to monitor and indicates the SOC and the sky to outside
It carries the correlation between voltage and the data of the correlation is updated to the storage unit；The wherein data processing list
Member is configured to: being determined the deterioration mode of the rechargeable battery and is selected from storage unit opposite with deterioration mode
The coefficient answered is to estimate the SOC of the rechargeable battery, wherein estimating that the SOC is used with lower section in first order deterioration mode
Formula: first detecting the floating voltage of the rechargeable battery in battery zero load, its electric current then detected when battery has load, will
The electric current obtains polarization electromotive force multiplied by the internal resistance of battery, and the floating voltage is calculated plus the polarization electromotive force
Then voltage estimates the SOC according to the calculating voltage, and estimate the SOC first according to first in other deterioration modes
Grade deterioration mode is estimated to obtain after SOC a reference value using the corresponding coefficient multiplied by obtaining other after the SOC a reference value
SOC estimation under deterioration mode.The data processing unit is determined in the mode is based on the rechargeable battery in processing
The internal resistance of element determines the deterioration mode of the rechargeable battery energy-storage travelling wave tube.Further, the data processing unit is based on
The measured value of the voltage and current of the battery detected calculates the internal resistance.Further, the storage unit is by the phase
Close property data be stored as the SOC and the rechargeable battery energy-storage travelling wave tube floating voltage and the cell during discharge time it
Between correlation data or chart.
Further, the determining deterioration mode further comprises the data processing unit chargeable electricity
The resistance increment rate of the internal resistance of pond energy-storage travelling wave tube and preset resistance increment rate threshold value, belonging to the determination rechargeable battery
Deterioration mode；Alternatively, the storage unit stores the rechargeable battery energy-storage travelling wave tube its unloaded electricity under different deterioration modes
Pressure and the correlation data between SOC and continuous discharging time, and the data processing unit is according to the correlation data
With deterioration mode belonging to the determination rechargeable battery.
It gives in this example and estimates the SOC in the following ways in first order deterioration mode: first in battery zero load
When detect the floating voltage of the rechargeable battery, its electric current is then detected when battery has load, by the electric current multiplied by electricity
The internal resistance in pond obtains polarization electromotive force, the floating voltage is obtained to calculate voltage plus the polarization electromotive force, then basis
The calculating voltage estimates the SOC.Conventional voltage can be taken to correspond to SOC mode here according to calculating voltage to be estimated
Meter, such as the corresponding acquisition from the chart.Or a kind of other examples, certain those skilled in the art are given here
Member can also select suitable mode.It is primarily based on and detects the voltage value via voltage sensor.For the voltage value of measurement,
It is detected by voltage sensor, by the way that the internal resistance value of battery to be attributed to multiplied by what the current value detected by current sensor was calculated
The voltage drop value of the internal resistance of cell and the voltage value of polarization phenomena for being attributed to nickel-metal hydride battery are added to calculate open-circuit voltage.More
Specifically, it for measured voltage value, is provided as being attributed to the voltage value of the voltage drop of internal resistance, and be attributed to polarization
Voltage value be added, to calculate the open-circuit voltage.And the internal resistance value for also considering battery here changes with its temperature.In
It is to consider the variation when for example from internal resistance described in mapping calculation, to calculate the voltage drop for being attributed to the internal resistance.In addition,
Polarization potential changes with the temperature of battery and the charge/discharge current value of the rechargeable battery.Then, for example from reflecting
It penetrates and considers the variation when calculating polarization potential value, wherein the mapping is with the temperature of the battery and the rechargeable battery
Charge/discharge current value is as parameter.Such as the integral (∫ idt) of the electric current is calculated from the current value.The integral is only
To the integral of the charge/discharge current of the rechargeable battery within short time interval (dt).It is detected based on current sensor 120 described
Current value.Or the active volume SOC of correction is further calculated based on dSOC × R (1) × R (2)+SOC_i.Wherein use
The SOC for first and second estimation being calculated respectively from the open-circuit voltage and the current integration, and base respectively
In the correction coefficient R (1) and R (2) of the voltage value and the current value, to continue to calculate the SOC of correction.
Embodiment three.
The invention proposes a kind of rechargeable battery SOC estimation device, it is used to carry out the remaining capacity (SOC) of battery
Estimation, described device includes: storage unit and data processing unit, wherein the rechargeable battery has first order deterioration mode
With the second deterioration mode, in the first order deterioration mode, the rechargeable battery has the capacity reduction relative to the time
Characteristic；And in the second deterioration mode, the rechargeable battery have relative to first order deterioration mode it is lower relative to when
Between capacity reduce characteristic；Wherein, storage unit be used to store battery in first order deterioration mode SOC and floating voltage it
Between correlation the first correlation data and indicate the second deterioration mode in battery SOC and floating voltage between correlation
Property the second correlation data, and the data processing unit portion of remaining out indicate the SOC and the floating voltage it
Between correlation and the data of the correlation are updated to the storage unit；Wherein the data processing unit is constructed
Are as follows: it determines the deterioration mode of the rechargeable battery and is selected from storage unit corresponding related to deterioration mode
Data are to estimate the SOC of the rechargeable battery.Further, the data processing unit determines base in processing in the mode
The deterioration mode of the rechargeable battery energy-storage travelling wave tube is determined in the internal resistance of the rechargeable battery element.Further, described
Data processing unit calculates the internal resistance based on the measured value of the voltage and current of the battery detected.Further, described
First correlation data and second correlation data are stored as the SOC and the rechargeable battery by storage unit
Correlation between the floating voltage of energy-storage travelling wave tube, and storing the SOC estimation and time correlation.Further
, the determining deterioration mode further comprises, the data processing unit rechargeable battery energy-storage travelling wave tube it is interior
The resistance increment rate of resistance and preset resistance increment rate threshold value, with deterioration mode belonging to the determination rechargeable battery；Alternatively,
The storage unit stores rechargeable battery energy-storage travelling wave tube described in the SOC and the floating voltage for each described chargeable
Capacity maintenance rate of the battery energy storage element relative to second deterioration mode, and the data processing unit selection with it is described
The corresponding related data of capacity maintenance rate is with deterioration mode belonging to the determination rechargeable battery.Deterioration mould belonging to determining
After formula, so that it may carry out the amendment of the means of SOC estimation according to the deterioration stage of battery, such as be adopted under first order deterioration mode
Conventional estimation formulas is taken to be estimated, estimation formulas is customary just not to be repeated herein, can be according to the spy of battery
Property and the estimation formulas that selects this field common is detected and is estimated, when then determining that battery enters the second deterioration mode again,
Suitable correction factor is selected to carry out modified result by test.
Example IV.
The invention proposes a kind of rechargeable battery SOC estimation device, it is used to carry out the remaining capacity (SOC) of battery
Estimation, described device includes: storage unit and data processing unit, wherein the rechargeable battery has first order deterioration mode
With the second deterioration mode, in the first order deterioration mode, the rechargeable battery has the capacity reduction relative to the time
Characteristic；And in the second deterioration mode, the rechargeable battery have relative to first order deterioration mode it is lower relative to when
Between capacity reduce characteristic；Wherein, storage unit be used to store battery in first order deterioration mode SOC and floating voltage it
Between correlation the first correlation data and indicate the second deterioration mode in battery SOC and floating voltage between correlation
Property the second correlation data, and the data processing unit portion of remaining out indicate the SOC and the floating voltage it
Between correlation and the data of the correlation are updated to the storage unit；Wherein the data processing unit is constructed
Are as follows: it determines the deterioration mode of the rechargeable battery and is selected from storage unit corresponding related to deterioration mode
Data are to estimate the SOC of the rechargeable battery.And in this example, the estimation is using between SOC and floating voltage
Correlation data carries out empirical estimation.The data processing unit determines in processing in the mode based on described chargeable
The internal resistance of cell device determines the deterioration mode of the rechargeable battery energy-storage travelling wave tube.The data processing unit is based on detecting
The measured value of voltage and current of battery calculate the internal resistance.The storage unit is by first correlation data and institute
The correlation that the second correlation data is stored as between the SOC and the floating voltage of the rechargeable battery energy-storage travelling wave tube is stated,
And by storing for the SOC estimation and time correlation.The determining deterioration mode further comprises, at the data
The resistance increment rate and preset resistance increment rate threshold value of the internal resistance of the unit rechargeable battery energy-storage travelling wave tube are managed, with true
Deterioration mode belonging to the fixed rechargeable battery；Alternatively, the storage unit stores rechargeable battery energy storage described in the SOC
Element and the floating voltage are directed to capacity of each rechargeable battery energy-storage travelling wave tube relative to second deterioration mode
Sustainment rate, and the data processing unit selects related data corresponding with the capacity maintenance rate described chargeable with determination
Deterioration mode belonging to battery.
Embodiment five.
The invention proposes a kind of rechargeable battery SOC estimation device, it is used to carry out the remaining capacity (SOC) of battery
Estimation, described device includes: storage unit and data processing unit, wherein there is the rechargeable battery first order to deteriorate mould
Formula, second and third deterioration mode, in the first order deterioration mode, the rechargeable battery has the appearance relative to the time
Amount reduces characteristic；And in the second deterioration mode, the rechargeable battery has more obvious relative to first order deterioration mode
Capacity relative to the time reduces characteristic；And in third deterioration mode, the rechargeable battery has relative to the second deterioration
Mode more obviously reduces characteristic relative to the capacity of time；Wherein, storage unit is for storing in first order deterioration mode
First correlation data of the correlation between the SOC and floating voltage of battery and the battery indicated in the second deterioration mode
Second correlation data of the correlation between SOC and floating voltage and the SOC and sky for indicating the battery in third deterioration mode
The third correlation data of the correlation between voltage is carried, and the data processing unit portion of remaining out indicates the SOC
Correlation between the floating voltage and the data of the correlation are updated to the storage unit；The wherein number
It is configured to according to processing unit: determining the deterioration mode of the rechargeable battery and selected and deteriorate from storage unit
The corresponding related data of mode is to estimate the SOC of the rechargeable battery.And in this example, the estimation uses SOC
Correlation data between floating voltage carries out empirical estimation.The data processing unit is determined in the mode and is handled
In the deterioration mode of the rechargeable battery energy-storage travelling wave tube is determined based on the internal resistance of the rechargeable battery element.At the data
Reason unit calculates the internal resistance based on the measured value of the voltage and current of the battery detected.The storage unit is by described
One correlation data and second, third described correlation data are stored as the SOC and the rechargeable battery energy-storage travelling wave tube
Correlation between floating voltage, and storing the SOC estimation and time correlation.The determining deterioration mode
It further comprise the resistance increment rate of the internal resistance of the data processing unit rechargeable battery energy-storage travelling wave tube and default
Resistance increment rate threshold value, with deterioration mode belonging to the determination rechargeable battery；Alternatively, described in the storage unit storage
Rechargeable battery energy-storage travelling wave tube its floating voltage and correlation between SOC and continuous discharging time under different deterioration modes
Data, and the data processing unit according to the correlation data with deterioration mode belonging to the determination rechargeable battery.
Here analysis determines the limited experimentation data for the battery variety that deterioration mode can be applied according to the present apparatus to obtain confirmation.
Although describing the present invention by reference to various embodiments above, but it is to be understood that of the invention not departing from
In the case where range, many changes and modifications can be carried out.Therefore, be intended to foregoing detailed description be considered as it is illustrative and
It is unrestricted, and it is to be understood that following following claims (including all equivalents) is intended to limit spirit and model of the invention
It encloses.The above embodiment is interpreted as being merely to illustrate the present invention rather than limit the scope of the invention.It is reading
After the content of record of the invention, technical staff can be made various changes or modifications the present invention, these equivalence changes and
Modification equally falls into the scope of the claims in the present invention.
Claims (5)
1. a kind of rechargeable battery SOC estimation device is used to estimate the remaining capacity (SOC) of battery, described device
It include: storage unit and data processing unit, wherein the deterioration of the rechargeable battery is divided into multistage deterioration mode, wherein
In first order deterioration mode, the rechargeable battery has the smallest capacity reduction characteristic relative to the time；
And every time in first class mode, the rechargeable battery has bigger relative to the time relative to previous stage deterioration mode
Capacity reduces characteristic；
Wherein, storage unit is used to store the correlation between the SOC and floating voltage of the battery in every level-one deterioration mode
Correlation data, and the data processing unit is continued to monitor and is indicated between the SOC and the floating voltage to outside
Correlation and the data of the correlation are updated to the storage unit；
It is characterized in that, wherein the data processing unit is configured to: determining the deterioration mode of the rechargeable battery
And select corresponding with deterioration mode coefficient to estimate the SOC of the rechargeable battery from storage unit, wherein the
The SOC is estimated in level-one deterioration mode in the following ways: the zero load of the rechargeable battery is first detected in battery zero load
Then voltage detects its electric current when battery has load, the electric current is obtained polarization electromotive force multiplied by the internal resistance of battery, by institute
Floating voltage is stated to obtain calculating voltage plus the polarization electromotive force, then according to the calculating voltage estimation SOC, and
Estimate that the SOC first estimates to obtain after SOC a reference value according to first order deterioration mode using described opposite in other deterioration modes
The coefficient answered is multiplied by obtaining the SOC estimation under other deterioration modes after the SOC a reference value.
2. rechargeable battery SOC estimation device according to claim 1, which is characterized in that the data processing unit exists
The mode determines that the internal resistance in processing based on the rechargeable battery element determines the bad of the rechargeable battery energy-storage travelling wave tube
Change mode.
3. rechargeable battery SOC estimation device according to claim 2, which is characterized in that the data processing unit base
The internal resistance is calculated in the measured value of the voltage and current of the battery detected.
4. rechargeable battery SOC estimation device according to claim 3, which is characterized in that the storage unit will be described
Correlation data is stored as floating voltage and the cell during discharge time of the SOC and the rechargeable battery energy-storage travelling wave tube
Between correlation data or chart.
5. rechargeable battery SOC estimation device according to claim 4, which is characterized in that the determining deterioration mode into
One step includes, the resistance increment rate of the internal resistance of the data processing unit rechargeable battery energy-storage travelling wave tube and preset
Resistance increment rate threshold value, with deterioration mode belonging to the determination rechargeable battery；Alternatively, can described in the storage unit storage
Rechargeable battery energy-storage travelling wave tube its floating voltage and correlation number between SOC and continuous discharging time under different deterioration modes
According to, and the data processing unit according to the correlation data with deterioration mode belonging to the determination rechargeable battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810649453.5A CN109031135A (en) | 2018-06-22 | 2018-06-22 | A kind of rechargeable battery SOC estimation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810649453.5A CN109031135A (en) | 2018-06-22 | 2018-06-22 | A kind of rechargeable battery SOC estimation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109031135A true CN109031135A (en) | 2018-12-18 |
Family
ID=64610282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810649453.5A Withdrawn CN109031135A (en) | 2018-06-22 | 2018-06-22 | A kind of rechargeable battery SOC estimation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109031135A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1975444A (en) * | 2005-11-28 | 2007-06-06 | 孙斌 | Accumulator cell internal resistance and degradation state on-line monitoring method and system |
| CN102262216A (en) * | 2010-05-29 | 2011-11-30 | 比亚迪股份有限公司 | Electric quantity detection method for chargeable battery and apparatus thereof |
| CN104977537A (en) * | 2014-04-14 | 2015-10-14 | 微宏动力系统（湖州）有限公司 | Battery SOC determination method and battery management system using method |
| CN105021995A (en) * | 2015-07-28 | 2015-11-04 | 王树华 | Portable intelligent storage battery parameter test method and tester |
| CN105452889A (en) * | 2013-05-23 | 2016-03-30 | 日立汽车系统株式会社 | Battery control device |
| WO2018062394A1 (en) * | 2016-09-29 | 2018-04-05 | 株式会社Ｇｓユアサ | Power storage element soc estimation device, power storage device, and power storage element soc estimation method |
| CN108061858A (en) * | 2017-10-30 | 2018-05-22 | 东华大学 | Lithium battery SOC appraisal procedures based on ohmic internal resistance |
-
2018
- 2018-06-22 CN CN201810649453.5A patent/CN109031135A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1975444A (en) * | 2005-11-28 | 2007-06-06 | 孙斌 | Accumulator cell internal resistance and degradation state on-line monitoring method and system |
| CN102262216A (en) * | 2010-05-29 | 2011-11-30 | 比亚迪股份有限公司 | Electric quantity detection method for chargeable battery and apparatus thereof |
| CN105452889A (en) * | 2013-05-23 | 2016-03-30 | 日立汽车系统株式会社 | Battery control device |
| CN104977537A (en) * | 2014-04-14 | 2015-10-14 | 微宏动力系统（湖州）有限公司 | Battery SOC determination method and battery management system using method |
| CN105021995A (en) * | 2015-07-28 | 2015-11-04 | 王树华 | Portable intelligent storage battery parameter test method and tester |
| WO2018062394A1 (en) * | 2016-09-29 | 2018-04-05 | 株式会社Ｇｓユアサ | Power storage element soc estimation device, power storage device, and power storage element soc estimation method |
| CN108061858A (en) * | 2017-10-30 | 2018-05-22 | 东华大学 | Lithium battery SOC appraisal procedures based on ohmic internal resistance |
Non-Patent Citations (1)
| Title |
|---|
| 于智龙: "基于自放电技术的电动车用锂动力电池SOC预测算法研究", 《中国博士学位论文全文数据库 工程科技Ⅱ辑》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9537325B2 (en) | Battery state estimation system, battery control system, battery system, and battery state estimation method | |
| JP6734784B2 (en) | How to estimate battery health | |
| EP1707974B1 (en) | Remaining capacity calculating device and method for electric power storage | |
| KR100563336B1 (en) | Battery module provided with a detecting device for detecting internal state of a rechargeable battery | |
| WO2018059074A1 (en) | Detection method and device for micro short circuit of battery | |
| JP4638195B2 (en) | Battery degradation degree estimation device | |
| JP5036662B2 (en) | Secondary battery monitoring device and secondary battery system | |
| US10845417B2 (en) | Battery state estimation device, battery control device, battery system, battery state estimation method | |
| CN107925135B (en) | Degradation degree estimation device and degradation degree estimation method | |
| WO2011135609A1 (en) | Degradation estimation device and degradation estimation method for storage battery device | |
| US20160252582A1 (en) | State-of-charge estimating device, state-of-charge determining method, and state-of-charge determining program | |
| TW201007190A (en) | Apparatus and method for estimating state of health of battery based on battery voltage variation pattern | |
| KR20140053590A (en) | Apparatus and method for estimating state of charging of battery | |
| CN104698388A (en) | Method and device for detecting battery ageing of mobile terminal | |
| CN113557439A (en) | Method for estimating state of health of battery | |
| CN113785209B (en) | Method for detecting abnormal battery cell | |
| JP2022167921A (en) | Storage cell control device and control method | |
| US20190041468A1 (en) | Systems and methods for battery micro-short estimation | |
| JP6494431B2 (en) | Deterioration diagnosis device for electricity storage devices | |
| WO2021150551A1 (en) | System and method for estimating battery state of health | |
| US11067637B2 (en) | Apparatus and method of estimating state of lithium ion battery | |
| CN108802626A (en) | A kind of intelligent battery diagnostic device | |
| CN109031135A (en) | A kind of rechargeable battery SOC estimation device | |
| Kallfelz | Battery monitoring considerations for hybrid vehicles and other battery systems with dynamic duty loads | |
| CN117740623A (en) | Electrolyte infiltration method and battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181218 |
|
| WW01 | Invention patent application withdrawn after publication |