CN105372594B - A kind of method and device for estimating Vehicular dynamic battery health status numerical value - Google Patents
A kind of method and device for estimating Vehicular dynamic battery health status numerical value Download PDFInfo
- Publication number
- CN105372594B CN105372594B CN201410421011.7A CN201410421011A CN105372594B CN 105372594 B CN105372594 B CN 105372594B CN 201410421011 A CN201410421011 A CN 201410421011A CN 105372594 B CN105372594 B CN 105372594B
- Authority
- CN
- China
- Prior art keywords
- equivalent capacity
- storage
- soh
- numerical value
- threshold
- 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.)
- Active
Links
Abstract
The present invention provides a kind of method and device for estimating Vehicular dynamic battery health status numerical value, and wherein method includes：Step S1 according to the pressure,volume and temperature that power battery is completed to be estimated during charging, calculates the equivalent capacity of the power battery；Step S2, judges whether the equivalent capacity of the calculating is less than the equivalent capacity of storage；Step S3 when the equivalent capacity of the calculating is less than the equivalent capacity of the storage, judges whether the difference of the two is more than first threshold；The power battery current health state SOH numerical value when the difference is more than first threshold, is subtracted the first numerical value by step S4.The present invention is by calculating equivalent capacity in practical driving conditions, and it is compared with the equivalent capacity of storage, judge whether difference is more than the first threshold set, SOH numerical value is handled according to judging result, the succinct and relatively accurate health status for estimating power battery.
Description
Technical field
The present invention relates to new-energy automobile field more particularly to a kind of sides for estimating Vehicular dynamic battery health status numerical value
Method and device.
Background technology
The health status of power battery（State of Health, abbreviation SOH）, for defining the electricity of battery storage energy
The size of power.The electricity that battery can store（That is capacity）And charging and discharging capabilities（That is power）, can decline with the use of battery
Subtract, until cannot satisfy the use demand.It is in general, electric used in pure electric vehicle or pure electrically driven (operated) plug-in hybrid electric vehicle
Its battery capacity is more paid close attention in pond, therefore, is also usually investigated with the attenuation of its battery capacity or is reflected health status.It is usually fixed
Justice when battery capacity decays to initial 80% when, that is, assert end-of-life.
Existing SOH numerical estimations method is to establish a complicated mathematical model, by during detecting battery use
Electrology characteristic, thus input model calculates the internal resistance of cell, then so as to the capacity for calculating battery, and the healthy shape for the battery that converts
State.
But it is very difficult and very complicated to establish an accurate mathematical model：
First, need based on the test data of a large amount of, prolonged laboratory cells, particularly Life Cycle
Test data.However, the obtained lifetime data of laboratory test again on temperature, applying working condition with operating mode when practical drive a vehicle
Difference is very big, and the electrochemical properties of battery are influenced by many condition elements, and the error of estimation is not also small.
Second, the foundation of model based on test data be typically battery cell attenuation characteristic.And usually battery pack is
The inconsistency of the connection in series-parallel of multiple monomers, service life or capacity fade characteristics also between monomer is associated, gives again as a result,
The appraising model of foundation introduces error, i.e., is had differences with actual use.
Invention content
The technical problems to be solved by the invention are, provide a kind of quickly and accurately estimation Vehicular dynamic battery health
The method and device of status values.
In order to solve the above technical problem, the present invention provides a kind of sides for estimating Vehicular dynamic battery health status numerical value
Method, including：
Step S1, the pressure,volume and temperature estimated when completing to charge according to power battery, calculate the power battery etc.
Imitate capacity；
Step S2, judges whether the equivalent capacity of the calculating is less than the equivalent capacity of storage；
Step S3, when the equivalent capacity of the calculating is less than the equivalent capacity of the storage, judging the difference of the two is
It is no to be more than first threshold；
When the difference is more than first threshold, the power battery current health state SOH numerical value is subtracted by step S4
First numerical value.
Wherein, the step S1 is specifically included：
Step S11, judges whether the power battery is completed to charge；
Step S12 when the power battery is completed to charge, inputs the pressure,volume and temperature of estimation；
Step S13 according to the pressure,volume and temperature of the estimation, calculates the equivalent capacity of the power battery.
Wherein, it is further included before the step S2：
Step S20 inputs the equivalent capacity of storage.
Wherein, it is further included after the step S2：
Step S21, when the equivalent capacity of the calculating is more than the equivalent capacity of the storage, by the equivalent of the storage
Capacity is updated to the equivalent capacity of the calculating.
Wherein, it while the step S4 is performed, further includes and performs step S40, when the difference is more than first threshold
When, the equivalent capacity of the storage is updated to the equivalent capacity of the calculating.
Wherein, the step S20 is further included：The SOH of input storage is counted, and the initial value that the SOH is counted is 0.
Wherein, the step S4 is specifically included：
Step S41, when the difference is more than first threshold, by the SOH of the storage, count is incremented obtains new SOH and count,
Otherwise then the SOH of the storage is counted and be zeroed；
Step S42 judges that the new SOH is counted and whether is more than second threshold；
Step S43 when the new SOH, which is counted, is more than the second threshold, performs following step parallel：
The equivalent capacity of the storage is updated to the equivalent capacity of the calculating by step S431；
The power battery current health state SOH numerical value is subtracted first numerical value by step S432；
The new SOH is counted zero by step S433.
Wherein, the method further includes：
Step S34, when the SOH, which is counted, is less than or equal to the second threshold, by the SOH count updates of the storage
It is counted for the new SOH.
The present invention also provides it is a kind of estimate Vehicular dynamic battery health status numerical value device, including：
Computing unit for the pressure,volume and temperature estimated when completing and charge according to power battery, calculates the power electric
The equivalent capacity in pond；
First judging unit, for judging whether the equivalent capacity of the calculating is less than the equivalent capacity of storage；
Second judgment unit judges that the equivalent capacity of the calculating is less than the storage for working as first judging unit
Equivalent capacity when, whether the difference both judged is more than first threshold；
Processing unit, for when the second judgment unit judge the difference be more than first threshold when, by the power
Battery current health state SOH numerical value subtracts the first numerical value.
Following advantageous effect will be brought by implementing the embodiment of the present invention：By calculating equivalent capacity in practical driving conditions, and
It is compared with the equivalent capacity of storage, judges whether difference is more than the first threshold set, according to judging result to SOH numerical value
It is handled, the succinct and relatively accurate service life for estimating power battery；It does not need to the complicated model of design and early period is big
The test data of amount, SOH estimations are the characteristics for considering inconsistency between battery cell in battery pack, that is, consider the whole of battery pack
Body capacity attenuation, and not only consider the capacity attenuation of battery cell；The present invention can be in the pure electric drive class vehicle of extrapolating electricity
In type, the estimation function of relatively rapid, relatively accurate enabling cell health state.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the flow diagram for the method that the embodiment of the present invention one estimates Vehicular dynamic battery health status numerical value.
Fig. 2 is the another flow signal for the method that the embodiment of the present invention one estimates Vehicular dynamic battery health status numerical value
Figure.
Fig. 3 is the structure diagram for the device that the embodiment of the present invention two estimates Vehicular dynamic battery health status numerical value.
Specific embodiment
Below with reference to the accompanying drawings the preferred embodiment of the present invention is described.
It please refers to shown in Fig. 1, the embodiment of the present invention one provides a kind of side for estimating Vehicular dynamic battery health status numerical value
Method, including：
Step S1, the pressure,volume and temperature estimated when completing to charge according to power battery, calculate the power battery etc.
Imitate capacity；
Step S2, judges whether the equivalent capacity of the calculating is less than the equivalent capacity of storage；
Step S3, when the equivalent capacity of the calculating is less than the equivalent capacity of the storage, judging the difference of the two is
It is no to be more than first threshold；
When the difference is more than first threshold, the power battery current health state SOH numerical value is subtracted by step S4
First numerical value.
Please in combination with shown in Fig. 2, each step is specifically described below.
Step S1 is specifically included：
Step S11, judges whether the power battery is completed to charge；
Step S12 when the power battery is completed to charge, inputs the pressure,volume and temperature of estimation；
Step S13 according to the pressure,volume and temperature of the estimation, calculates the equivalent capacity of the power battery.
" when power battery completes charging " refers to go to the state of charging end from charging, and charging one is completed without referring to
Straight static state.Only in charging in the state of end, estimated capacity and temperature just have it is multiple between transverse direction it is right
Compare property.The estimation of capacity can acquire the parameters such as the voltage, electric current, temperature of power battery, be got by software calculating.As for temperature
The estimation of degree, then directly by the temperature sensor collecting test in battery pack.
The influence of temperature in the removal capacity comparison procedure of equivalent capacity main purpose is calculated, capacity is that have under different temperatures
Difference, if do not eliminated difference, have no way of comparing.By some experimental datas, temperature, capacity, life time decay are obtained
One relational expression, test data is more, this relational expression is more accurate.When practical operation, practical temperature and capacity are inputted
Equivalent capacity can be calculated.
Step S20 is further included before step S2, inputs the equivalent capacity of storage.If estimating for the first time, then step is inputted
The equivalent capacity that rapid S1 is calculated.
In general, with the use of power battery, the increase of charge and discharge cycles, capacity can gradually decay, therefore, described
The equivalent capacity of calculating should usually be less than the equivalent capacity of storage, if it is not, then meaning that some aspects occur
It is abnormal（For instance it can be possible that the error of volume calculation is too big in step S1）, equivalent capacity and storage that step S2 judgements calculate
Magnitude relationship between equivalent capacity just performs follow-up step when the equivalent capacity only calculated is less than the equivalent capacity of the storage
Rapid S3, S4.Correspondingly, it is more accurate in order to estimate next time, it is further included after step S2：
Step S21, when the equivalent capacity of the calculating is more than the equivalent capacity of the storage, by the equivalent of the storage
Capacity is updated to the equivalent capacity of the calculating.
In step S3, if the equivalent capacity of the calculating is QIt calculates, the equivalent capacity of the storage is QStorage, the two difference is
D then has D=(QStorage- QIt calculates) / QStorageNamely the equivalent capacity Q calculatedIt calculatesCompared to the equivalent capacity Q of storageStorageIt reduces
D（D is percentage）.Then D is compared with the first threshold set.
Step S4 is the step of being performed according to the comparison result of step S3, and wherein first threshold is associated with the first numerical value
.If it is that its capacity is reduced to the 80% of starting to define the cut-off of power battery service life, first threshold is set as 1%, and first counts
Be worth is 5%, that is to say, that when the equivalent capacity and the equivalent capacity difference of storage of the calculating add up to reduce 20%,
SOH just adds up to have subtracted 100%, becomes 0.Similarly, if defining the cut-off of power battery service life as 70% capacity, corresponding first
Threshold value and the first numerical value are required to change.In addition, even if it is that its capacity has been reduced to equally defining the cut-off of power battery service life
In the case of 80% to begin, first threshold and the first numerical value are also not necessarily limited to above-mentioned value, for example, first threshold can be 2%, first
Numerical value is 10%.
It while step S4 is performed, further includes and performs step S40, when the difference is more than first threshold, by described in
The equivalent capacity of storage is updated to the equivalent capacity of the calculating.After step S3 is performed, if the equivalent capacity of the calculating
It is more than first threshold with the difference of the equivalent capacity of storage, shows compared with the equivalent capacity of original storage, the equivalent capacity of calculating
It has been decayed that, it is more accurate in order to estimate next time, it needs to carry out for the equivalent capacity of the storage as comparison basis more
Newly.
It declines to reduce because of false judgment capacity caused by the reason of certain primary volume calculation error and equilibrium
Subtract, SOH is provided in the embodiment of the present invention and is counted and corresponding judgment threshold（Second threshold）n.SOH count meaning be through
After crossing the calculating of n times, if the equivalent capacity that the equivalent capacity calculated continuously always below stores, can determine power substantially
The capacity of battery is decayed really.The initial value that SOH is counted is 0, in the equivalent capacity of step S20 input storages, together
The SOH of step input storage is counted, then step S4 includes：
Step S41, when the difference is more than first threshold, by the SOH of the storage, count is incremented obtains new SOH and count,
Otherwise then the SOH of the storage is counted and be zeroed；
Step S42 judges that the new SOH is counted and whether is more than second threshold n；
Step S43 when the new SOH, which is counted, is more than second threshold n, performs following step parallel：
The equivalent capacity of the storage is updated to the equivalent capacity of the calculating by step S431；
The power battery current health state SOH numerical value is subtracted first numerical value by step S432；
The new SOH is counted zero by step S433.
In addition, step S44 is further included, when the SOH, which is counted, is less than or equal to second threshold n, by the SOH of the storage
Count update is counted for the new SOH.
Similar to the equivalent capacity of update storage, according to the different size relationship with second threshold n, newer SOH is counted
（It is to update that SOH is counted zero by step S433 or step S44, wherein step S433）Or according to the equivalent of the calculating
The difference of equivalent capacity and the magnitude relationship of first threshold of capacity and the storage and newer SOH is counted（Step S41 will
It is to update that SOH, which counts zero,）, counted as when estimating next time by the SOH of the step S20 storages inputted.
Second threshold n is natural number, is represented if the difference of equivalent capacity and the equivalent capacity of storage calculated after continuous n times
Value is both greater than first threshold, with regard to occurring the attenuation of capacity certainly, then needs to adjust SOH numerical value.N is adjustable, as specific
How much, practical test calibration is needed to do.
By foregoing description it is found that the present invention is by calculating equivalent capacity in practical driving conditions, and equivalent with storage
Capacity is compared, and judges whether difference is more than the first threshold set, and SOH numerical value is handled according to judging result, letter
The clean and relatively accurate service life for estimating power battery.The present invention does not need to the complicated model of design and largely tries early period
Data are tested, meanwhile, capacity is the capacity of the battery pack calculated, and not only considers the capacity attenuation of battery cell, therefore, this
SOH estimations in invention are the characteristics for considering inconsistency between battery cell in battery pack, that is, consider that the whole of battery pack holds
Amount attenuation, so as to succinct and relatively accurate estimation battery life.Since original SOH evaluation methods are complicated, and accuracy
Not necessarily high, therefore, the pure electric drive class vehicle of most of extrapolating electricity does not enable health status estimation function.Energy of the present invention
Enough in the pure electric drive class vehicle of extrapolating electricity, the estimation function of relatively rapid, relatively accurate enabling cell health state,
And without carrying out the Complex Modeling on software to battery, early period is without the test calibration for carrying out large amount of complex.
Referring again to shown in Fig. 3, based on the embodiment of the present invention one, the embodiment of the present invention two provides a kind of estimation power train in vehicle application
The device of cell health state numerical value, including：
Computing unit 31 for the pressure,volume and temperature estimated when completing and charge according to power battery, calculates the power
The equivalent capacity of battery；
First judging unit 32, for judging whether the equivalent capacity of the calculating is less than the equivalent capacity of storage；
Second judgment unit 33 judges the equivalent capacity of the calculating less than described for working as first judging unit 32
During the equivalent capacity of storage, judge whether the difference of the two is more than first threshold；
Processing unit 34, described in when the second judgment unit 33 judges that the difference is more than first threshold, inciting somebody to action
Power battery current health state SOH numerical value subtracts the first numerical value.
Advantageous effect in relation to the present embodiment please refers to the description of the embodiment of the present invention one, and details are not described herein again.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore equivalent variations made according to the claims of the present invention, is still within the scope of the present invention.
Claims (7)
1. a kind of method for estimating Vehicular dynamic battery health status numerical value, including：
Step S1 according to the pressure,volume and temperature that power battery is completed to be estimated during charging, calculates the equivalent appearance of the power battery
Amount；
Step S20, inputs the equivalent capacity of storage and the SOH of input storage is counted, and the initial value that the SOH is counted is 0；
Step S2, judges whether the equivalent capacity of the calculating is less than the equivalent capacity of storage；
Step S3 when the equivalent capacity of the calculating is less than the equivalent capacity of the storage, judges the equivalent appearance of the calculating
Measure whether the percentage reduced compared to the equivalent capacity of the storage is more than first threshold；
Step S4, when the percentage of the reduction is more than first threshold, by the power battery current health state SOH numerical value
The first numerical value is subtracted, the first threshold is related copula to first numerical value.
2. according to the method described in claim 1, it is characterized in that, the step S1 is specifically included：
Step S11, judges whether the power battery is completed to charge；
Step S12 when the power battery is completed to charge, inputs the pressure,volume and temperature of estimation；
Step S13 according to the pressure,volume and temperature of the estimation, calculates the equivalent capacity of the power battery.
3. it according to the method described in claim 1, it is characterized in that, is further included after the step S2：
Step S21, when the equivalent capacity of the calculating is more than the equivalent capacity of the storage, by the equivalent capacity of the storage
It is updated to the equivalent capacity of the calculating.
4. according to the method described in claim 1, it is characterized in that, while the step S4 is performed, further include and perform step
Rapid S40, when the reduction percentage be more than first threshold when, by the equivalent capacity of the storage be updated to the calculating etc.
Imitate capacity.
5. according to the method described in claim 1, it is characterized in that, the step S4 is specifically included：
Step S41, when the percentage of the reduction is more than first threshold, by the SOH of the storage, count is incremented obtains new SOH
It counts, otherwise then the SOH of the storage is counted and is zeroed；
Step S42 judges that the new SOH is counted and whether is more than second threshold；
Step S43 when the new SOH, which is counted, is more than the second threshold, performs following step parallel：
The equivalent capacity of the storage is updated to the equivalent capacity of the calculating by step S431；
The power battery current health state SOH numerical value is subtracted first numerical value by step S432；
The new SOH is counted zero by step S433.
6. according to the method described in claim 5, it is characterized in that, the method further includes：
The SOH count updates of the storage are institute when the SOH, which is counted, is less than or equal to the second threshold by step S34
New SOH is stated to count.
7. a kind of device for estimating Vehicular dynamic battery health status numerical value, which is characterized in that including：
Computing unit for the pressure,volume and temperature estimated when completing and charge according to power battery, calculates the power battery
Equivalent capacity；
Input unit, the SOH for inputting the equivalent capacity of storage and storage are counted, and the initial value that the SOH is counted is 0；
First judging unit, for judging whether the equivalent capacity of the calculating is less than the equivalent capacity of storage；
Second judgment unit, for work as first judging unit judge the calculating equivalent capacity be less than the storage etc.
When imitating capacity, judge whether the equivalent capacity of the calculating is more than the compared to the percentage that the equivalent capacity of the storage reduces
One threshold value；
Processing unit, for judge when the second judgment unit percentage of the reduction be more than first threshold when, will described in
Power battery current health state SOH numerical value subtracts the first numerical value, and the first threshold is related copula to first numerical value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410421011.7A CN105372594B (en) | 2014-08-25 | 2014-08-25 | A kind of method and device for estimating Vehicular dynamic battery health status numerical value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410421011.7A CN105372594B (en) | 2014-08-25 | 2014-08-25 | A kind of method and device for estimating Vehicular dynamic battery health status numerical value |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105372594A CN105372594A (en) | 2016-03-02 |
| CN105372594B true CN105372594B (en) | 2018-06-26 |
Family
ID=55374954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410421011.7A Active CN105372594B (en) | 2014-08-25 | 2014-08-25 | A kind of method and device for estimating Vehicular dynamic battery health status numerical value |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105372594B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802625B (en) * | 2018-06-20 | 2020-11-10 | 国网江苏省电力有限公司电力科学研究院 | SOC self-adaptive correction method for secondary battery |
| CN113433478A (en) * | 2021-06-25 | 2021-09-24 | 北京车和家信息技术有限公司 | Method and device for estimating health degree of power battery by cloud |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102216794A (en) * | 2008-11-17 | 2011-10-12 | 标致·雪铁龙汽车公司 | Method for determining the remaining life of an electrochemical power source for electric traction |
| US8159189B2 (en) * | 2007-12-06 | 2012-04-17 | GM Global Technology Operations LLC | Battery state of health monitoring system and method |
| CN102520361A (en) * | 2011-12-05 | 2012-06-27 | 惠州市亿能电子有限公司 | State of health (SOH) value assessment method of battery pack |
| EP2571131A1 (en) * | 2011-09-16 | 2013-03-20 | Research In Motion Limited | Diagnostic use of a plurality of electrical battery parameters |
| CN103576097A (en) * | 2013-11-19 | 2014-02-12 | 清华大学 | Method and system for estimating SOH of battery |
| CN103760493A (en) * | 2014-01-17 | 2014-04-30 | 安徽江淮汽车股份有限公司 | Detecting method and system for health state of extended-range electric vehicle power battery |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4845066B1 (en) * | 2010-08-18 | 2011-12-28 | 古河電気工業株式会社 | Method and apparatus for detecting state of power storage device |
| US20140180614A1 (en) * | 2012-12-26 | 2014-06-26 | Robert Bosch Gmbh | System And Method For Selective Estimation Of Battery State With Reference To Persistence Of Excitation And Current Magnitude |
-
2014
- 2014-08-25 CN CN201410421011.7A patent/CN105372594B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8159189B2 (en) * | 2007-12-06 | 2012-04-17 | GM Global Technology Operations LLC | Battery state of health monitoring system and method |
| CN102216794A (en) * | 2008-11-17 | 2011-10-12 | 标致·雪铁龙汽车公司 | Method for determining the remaining life of an electrochemical power source for electric traction |
| EP2571131A1 (en) * | 2011-09-16 | 2013-03-20 | Research In Motion Limited | Diagnostic use of a plurality of electrical battery parameters |
| CN102520361A (en) * | 2011-12-05 | 2012-06-27 | 惠州市亿能电子有限公司 | State of health (SOH) value assessment method of battery pack |
| CN103576097A (en) * | 2013-11-19 | 2014-02-12 | 清华大学 | Method and system for estimating SOH of battery |
| CN103760493A (en) * | 2014-01-17 | 2014-04-30 | 安徽江淮汽车股份有限公司 | Detecting method and system for health state of extended-range electric vehicle power battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105372594A (en) | 2016-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102452548B1 (en) | Apparatus for determination battery degradation, system having the same and method thereof | |
| CN103630843B (en) | Battery status estimating unit and estimation method, battery control device, battery system | |
| CN104698388B (en) | The cell degradation detection method and its device of a kind of mobile terminal | |
| JP4884404B2 (en) | Method and apparatus for detecting internal information of secondary battery | |
| US9588186B2 (en) | Mechanical measurement of state of health and state of charge for intercalation batteries | |
| JP6324248B2 (en) | Battery state detection device, secondary battery system, battery state detection program, battery state detection method | |
| KR101394867B1 (en) | Method for DTE computation of green car | |
| US9018907B2 (en) | Method for precise power prediction for battery packs | |
| WO2015041091A1 (en) | Secondary cell degradation diagnosis system, and degradation diagnosis method | |
| JP6316690B2 (en) | Battery state detection device, secondary battery system, battery state detection program, battery state detection method | |
| JP6918433B1 (en) | Deterioration degree diagnostic device | |
| KR101966062B1 (en) | Measuring device for state of charging of battery and measuring method the same | |
| JP6376091B2 (en) | Battery power prediction device | |
| CN103869253B (en) | For determining whether voltage measurement can be used for the method and system of charged state estimation | |
| CN109031133B (en) | SOC correction method of power battery | |
| KR102572652B1 (en) | Method for estimating state of charge of battery | |
| CN104407298A (en) | Lithium ion battery pack available surplus capacity calculation method | |
| KR102274383B1 (en) | Assessing the quantity of energy in a motor vehicle battery | |
| JP2015524048A (en) | Estimating battery charge | |
| CN107925135A (en) | Degradation estimation device and degradation method of estimation | |
| JP2016223923A (en) | Deterioration level calculation method, control method, and control device of lithium ion secondary battery | |
| KR101865972B1 (en) | Method for checking deterioration of battery | |
| CN106696712A (en) | Power battery fault detection method, system and electric vehicle | |
| CN115542186B (en) | Method, device, equipment and medium for evaluating state and consistency of energy storage battery | |
| JP2024026232A (en) | Storage battery control device and control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211231 Address after: 511434 No. 36, Longying Road, Shilou Town, Panyu District, Guangzhou City, Guangdong Province Patentee after: GAC AIAN New Energy Vehicle Co.,Ltd. Address before: 510000 23 building, Cheng Yue mansion 448-458, Dongfeng Middle Road, Yuexiu District, Guangzhou, Guangdong. Patentee before: GUANGZHOU AUTOMOBILE GROUP Co.,Ltd. |