CN106932723A - The method for estimating battery capacity - Google Patents
The method for estimating battery capacity Download PDFInfo
- Publication number
- CN106932723A CN106932723A CN201511031805.3A CN201511031805A CN106932723A CN 106932723 A CN106932723 A CN 106932723A CN 201511031805 A CN201511031805 A CN 201511031805A CN 106932723 A CN106932723 A CN 106932723A
- Authority
- CN
- China
- Prior art keywords
- battery
- battery capacity
- capacity
- electric current
- correcting condition
- 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.)
- Pending
Links
Classifications
-
- 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
Abstract
The present invention provides a kind of method for estimating battery capacity, is implemented in the electronic installation with battery, and the battery has electric current and voltage.The method is comprised the following steps.Judge whether correcting condition meets.When correcting condition is unsatisfactory for, coulomb algorithm is carried out so that the electric current of battery to be added up and consume electricity to obtain estimation, and the previous capacity of battery is subtracted into estimation consumption electricity, to obtain estimation battery capacity.When correcting condition meets, detect battery voltage, and the battery that will be measured voltage in comparison with look-up table, to obtain the battery capacity of battery, battery capacity is corrected whereby.Accordingly, can estimate to obtain more accurately battery capacity.
Description
Technical field
The present invention is related to a kind of coulomb algorithm, and particularly a kind of method for estimating battery capacity, its
The precision of battery capacity is measured based on the lifting of coulomb algorithm.
Background technology
Often there is battery in electronic installation, be used to provide the electric power of inner working components running.However, electric
The number of tankage affects the time span that electronic installation can be operated, accordingly, it would be desirable to hold for battery
That measures is estimated.
The foregoing battery capacity for referring to electronic installation is generally obtained using look-up table, and such as cell voltage is tabled look-up
Method.Because the voltage of battery can be with load change, the cell voltage when electric current is less than a threshold value
Bounce will not just be crossed significantly, can just be sampled to correct cell voltage.Can be by tradition according to prior art
Battery electric quantity estimate mode classify as following three kinds.First way is, simple cell voltage look-up table:
The shortcoming of this kind of situation is that the voltage for measuring can beat, and is likely to be suddenly big it is possible to battery capacity
Suddenly it is small, such as 75% → 80% → 65% → 77% bounce.The second way is that electric current is less than threshold
Value is just tabled look-up using the voltage for measuring, however, the shortcoming of this kind of situation is must always to wait electric current
Less than threshold value, it is likely that a very long time (such as 30 minutes) or even not all being less than door to dead battery
Threshold value.The third mode is, simple to use coulomb algorithm:This kind of method be constantly repeatedly (or
Every the time) current flow of this battery is detected, and the sampling result of many primary currents is carried out into accumulative adding up (i.e.
It is that the time is integrated), it is possible to know and consume how many electricity on earth.Then, then will start
When measured battery capacity subtract consumed electricity, can just obtain the remaining battery capacity of current battery.
The advantage of this third method is that battery capacity is linear decline, but is had the disadvantage, the battery being sampled to
Electric current be not when electronic installation is used average current (sampling moment electric current cannot represent electronic installation
The electric current of all run times), so it is likely to result in the electricity to being consumed and estimates that excessive or too small deviation shows
As.
And such as United States Patent (USP) (US Patent) number US9, described in 146,280 prior art, it only exists
When battery reaches holding state (idle), open-circuit voltage detection is carried out to battery, and electricity is obtained using look-up table
Tankage.In battery and not up to holding state, then calculated using coulomb algorithm and consume electricity.
However, with the progress of science and technology, getting over accurate for the demand of the estimation of battery capacity.Above-mentioned institute
The battery capacity estimation method used in the prior art for referring to respectively has shortcoming, and be likely to cause it is accurate
Degree does not meet the problem of demand.
The content of the invention
The embodiment of the present invention provides a kind of method for estimating battery capacity, based on coulomb algorithm and cooperation
Appropriate correcting condition, enable it is corrected after battery capacity it is close with actual battery capacity.
The embodiment of the present invention provides a kind of method for estimating battery capacity, is implemented in the electronics dress with battery
Put, the battery has electric current and voltage.The method is comprised the following steps.Judge whether correcting condition is full
Foot.When correcting condition is unsatisfactory for, carries out coulomb algorithm and added up to obtain with by the electric current of battery
Estimate to consume electricity, and the previous capacity of battery is subtracted into estimation and consume electricity, estimate that battery holds to obtain
Amount.When correcting condition meets, detect the voltage of battery, and the battery that will be measured voltage in comparison with looking into
Table is looked for, to obtain the battery capacity of battery, battery capacity is corrected whereby.
According to an embodiment of the present invention, the previous capacity of the wherein battery is the initial of the battery
Capacity or the battery capacity in comparison with the look-up table.
Another implementation method of the invention, the wherein correcting condition include that the electric current of the battery is less than
One electric current threshold value.
Another implementation method of the invention, the method for the estimation battery capacity, also includes：When this
When correcting condition is unsatisfactory for, by electric current threshold value lifting.
Another implementation method of the invention, the wherein correcting condition include a center of the electronic installation
The load of processor is less than a load value.
Another implementation method of the invention, the method for described estimation battery capacity, also includes：Profit
The battery capacity after showing the estimation battery capacity or correction with a display unit.
Another implementation method of the invention, the wherein look-up table include the voltage of the battery and the electricity
The corresponding relation data of tankage.
Another implementation method of the invention, the wherein correcting condition include judging a correction interval time
Whether reach, when correction interval time is not reached, then the correcting condition is to be unsatisfactory for.
Another implementation method of the invention, the wherein battery are secondary cells.
Another implementation method of the invention, the wherein electronic installation are intelligent mobile phone, notes type electricity
Brain or panel computer.
In sum, the embodiment of the present invention provides a kind of method for estimating battery capacity, by calibration bars
Again cell voltage is measured when part meets, to correct battery capacity.Accordingly, the battery after corrected holds
Amount can be close with actual battery capacity.
Feature of the invention and technology contents are further understood that to enable, are referred to below in connection with the present invention
Detailed description and accompanying drawing, but these explanations are only used for illustrating the present invention with institute's accompanying drawings, rather than to this
The interest field of invention makees any limitation.
Brief description of the drawings
Fig. 1 is to estimate that battery capacity is compared using the method for estimation battery capacity provided in an embodiment of the present invention
Estimate the schematic diagram of battery capacity and actual battery capacity in traditional coulomb algorithm.
Fig. 2 is the flow chart of the method for estimation battery capacity provided in an embodiment of the present invention.
Fig. 3 is the functional block diagram of electronic installation provided in an embodiment of the present invention.
Fig. 4 is the state diagram of the method for the estimation battery capacity that another embodiment of the present invention is provided.
【Symbol description】
S1、S2、S3、S4：Curve
4a、4a’：Electricity decline curve section
4b：Vertical segment
4c：Battery capacity after correction
S100、S110、S120、S130、S140、S150：Steps flow chart
300：Electronic installation
310：Battery
320：Operation processing unit
330：Display unit
340：Voltage detection unit
350：Current detecting unit
360：Storage element
+：Anode
-：Negative terminal
400：Normal correction
500：Adjustment correcting condition
600：Correct immediately
Specific embodiment
(estimating the embodiment of the method for battery capacity)
Fig. 1 is refer to, Fig. 1 is estimated using the method for estimation battery capacity provided in an embodiment of the present invention
Battery capacity estimates the schematic diagram of battery capacity and actual battery capacity compared to traditional coulomb algorithm.
In Fig. 1, actual battery capacity represents with curve S1, uses the battery estimated by traditional coulomb algorithm
Electricity is represented with curve S2, S3.Based on traditional coulomb algorithm.In some cases, such as electronics
During a large amount of power consumptions of device so that when using coulomb counting method sampling current value, because continuously achieve compared with
Big current value, numerical value is big compared with actual value when power consumption is calculated, therefore the estimated battery capacity for obtaining
Will be less than normal, as shown in the curve S2 of Fig. 1.If however, continuously achieving the less magnitude of current (example
If electronic installation is just standby), numerical value is small compared with actual value when power consumption is calculated, the so estimated electricity for obtaining
Tankage also will be bigger than normal, as shown in the curve S3 of Fig. 1.Compared to traditional method, using this implementation
The method of the estimation battery capacity described in example, (threshold value is less than) when the electric current of battery is relatively low, is measured again
Cell voltage is surveyed to correct the battery capacity of display.In this way, the electricity of (or display) resulting after corrected
Tankage will be close with actual battery capacity, as shown in the curve S4 in Fig. 1.The estimation of the present embodiment
The method of battery capacity is based on coulomb algorithm and further lifts the precision for measuring battery capacity, and its is detailed
Step will be in described below.
Fig. 2 is refer to, Fig. 2 is the flow chart of the method for estimation battery capacity provided in an embodiment of the present invention.
Estimate that the method for battery capacity is implemented in the electronic installation with battery, the battery is in power supply electron dress
There is detectable electric current and voltage when putting.Battery described in the method is, for example, secondary cell, secondary electricity
Pond has the repeated charge property that can be again charged, discharged again after electric discharge.Electronics common at present is produced
Product are commonly using the secondary cell such as lithium ion battery etc.However, therefore the present invention does not limit estimating
The species of the battery that the method for battery capacity is applicable.The method is comprised the following steps.First, in step
In S100, the initial capacity of battery is obtained.Due to before coulomb algorithm is carried out, it is necessary to learn battery
Initial capacity, therefore carry out step S100.The executive mode of step S100 is, for example, by battery
Voltage in comparison with look-up table (Look-up Table), to obtain the initial capacity of battery.The carrying out of this step
Opportunity is, for example, (or when starting) when electronic installation is initially powered up, that is, is run at the beginning in electronic installation
When obtain initial capacity.On the look-up table for being used, will in the lump be illustrated in follow-up step S140.
Then, in step s 110, coulomb algorithm is carried out to be added up to obtain with by the electric current of battery
Estimate to consume electricity, and the previous capacity of battery is subtracted into estimation and consume electricity, to obtain and show estimation
Battery capacity.At this moment, described previous capacity is the initial capacity of battery.Electric current on battery
Sampling mode, in practical application, existing current sampling circuit (or current detecting unit) can be utilized
Sample the electric current of battery, and by the integrated current over time of sampling obtaining the consumption electricity of estimation.For example,
Can at regular intervals the cycle (such as 1 second, but not limited to this) electric current of battery is sampled, but
Therefore the present invention does not limit.Referring concurrently to Fig. 1, the gentle electricity decline curve section 4a of each of which section
Or the electric quantity change of 4a ' is all the consumption electricity carried out estimated by coulomb algorithm via step S110.
If electricity decline curve section is (for example：Decline curve section 4a) on curve S1 when, represent it is right at this
It is bigger than normal to answer the battery electric quantity estimated by time interval.On the other hand, if electricity decline curve section is in curve
When under S1 (for example：Decline curve section 4a '), represent in the battery estimated by this correspondence time interval
Electricity is less than normal.Via step S110, the battery capacity of display is to estimate battery capacity, e.g. Fig. 1
In decline curve section 4a, 4a ' corresponding to battery capacity numerical value (may bigger than normal or less than normal).However,
Understood also based on above-mentioned explanation, the battery capacity obtained using coulomb algorithm may be inaccurate, therefore
Follow-up aligning step need to be carried out.Reference picture 1, the change that the curve S4 in Fig. 1 shows battery meter
Journey is analogous to the curve of stepped, and wherein vertical segment 4b is produced by follow-up correction program
Battery electric quantity changes.
After step silo, step S120 is carried out, judges whether correcting condition meets.The correction
Condition is, for example, and whether the electric current of battery is less than an electric current threshold value, or electronic installation centre
Whether the load for managing device is less than a default load value, and the load value is typically a low computational load
Amount (e.g. fully loaded 2%, 3% or 5%).The correcting condition can also include judging correction interval
Whether the time has reached, and when correction interval time is not reached, then correcting condition is to be unsatisfactory for.However, this
Therefore invention does not limit the content of correcting condition.
When the correcting condition of step S120 is unsatisfactory for, then step S110 is returned to, carry out a coulomb algorithm
Estimate to consume electricity obtaining so that the electric current of battery to be added up, and the previous capacity of battery is subtracted estimate
Meter consumes electricity, to obtain and shows estimation battery capacity.Namely shown battery capacity is still
Gentle electricity decline curve section in corresponding to the curve S4 of Fig. 1, such as declines curved section 4a, 4a '.
When correcting condition meets, using the correction program of subsequent step S130 and S140, will estimate that battery holds
Amount is updated to the battery capacity after correction.Specifically, when correcting condition meets, then step is carried out
S130, detects the voltage of battery.The voltage of battery can be realized with existing voltage detecting circuit, do not done superfluous
State.Then, in step S140, the cell voltage that will be measured in comparison with look-up table, to utilize the side of tabling look-up
Formula obtains the battery capacity of battery, battery capacity is corrected whereby, and show the battery capacity after correction.Example
Such as, battery capacity is estimated if previously being obtained by step S110, step S140 is to estimate script display
Meter battery capacity is modified to and shows battery meter, in other words, after step S130 and S140, institute
The battery capacity of display is via battery capacity (after correction) obtained from tabling look-up.The situation of reference picture 1,
Vertical segment 4b is represented, using correction program, the battery capacity of estimation is updated to the battery after correction and is held
Amount 4c.Therefore, the battery capacity 4c after correcting each time should be the reality for being fairly close to battery capacity
Actual value.After corrected, by the estimation battery capacity of script display decline curve section 4a, display is changed to
Battery capacity 4c after correction.An example shown in look-up table is for example following, but not therefore the present invention
Limit.
In practical application, during electric current in the power supply when battery (being higher than threshold value) higher, will detect
The voltage of battery is in comparison with the battery capacity obtained by look-up table and incorrect.Battery electricity stored by look-up table
Pressure is typically in the parameter data obtained by low-load or non-loaded situation with the relationship information of battery capacity.
Judge that battery is, in high capacity or low-load state, to measure battery electricity because the correcting condition is represented
Instantly, the load of battery is more low then more accurate using the battery capacity obtained by look-up table for pressure.By step
After the trimming process of rapid S130, S140, then step S110 is carried out again, continue with a coulomb algorithm
Estimate battery capacity, wherein now in the calculating process of the coulomb algorithm of step S110 battery previous appearance
Amount is to obtain the battery capacity in comparison with look-up table via step S140 (correction).
Further, since the electric current of battery is likely to be influenceed by battery temperature with voltage, therefore in step S140
In look-up table may also comprise the corresponding relation data of the temperature of battery, the voltage of battery and battery capacity.
However, therefore the present invention does not also limit.
In one embodiment, when the electric current that correcting condition is battery is less than electric current threshold value, the door of electric current
Threshold value is, for example, that therefore tens of milliamperes training (mA), e.g. 50 milliamperes (50mA), but the present invention do not limit
It is fixed.When the non-threshold value less than electric current of the electric current of battery, then step S110 is carried out again.When the electricity of battery
When stream is less than electric current threshold value, then step S130 is carried out.The threshold value of the electric current can be answered according to actual
Battery capacity, battery sizes, temperature or battery variety etc. parameter and determine, also not one
Fixed numbers.Also, the present invention does not limit the setting means of threshold value yet.On the other hand, calibration bars are worked as
When part is unsatisfactory for, it is also possible to by the lifting of electric current threshold value, will be in the embodiment explanation of subsequent figure 4.Because,
When correcting condition is unsatisfactory for always, then only will likely with the estimation battery capacity obtained by coulomb algorithm
It is more and more inaccurate, therefore electric current threshold value can also be adjusted, to accurate battery electric quantity can be obtained.
In another embodiment, when the load that correcting condition is central processing unit (CPU) is less than a load value
When, the load value is, for example, fully loaded 2%, 3% or 5%, but therefore the present invention does not also limit.Just
For the general electronic installation with central processing unit, such as intelligent mobile phone, when bearing for central processing unit
When lotus is lower, then it is fewer to represent this electronic installation power consumption now, also allows for the output current of battery
Also it is smaller, therefore whether the payload of central processing unit can also be used as reaching the foundation of correcting condition.
However, correcting condition is the payload for wanting Selection utilization battery current or Selection utilization central processing unit,
May be selected according to the practical situations of electronic installation, therefore the present invention does not limit.
In another embodiment, when the judgement correcting condition in step S120 includes judging correction interval time
Whether reach.Correction interval time is, for example, 5 minutes, but therefore the present invention does not limit.Work as setting
Correction interval time, then it represents that if not reaching correction interval time, the judged result of step S120 must
It is no, i.e., correcting condition is to be unsatisfactory for, and carries out step S110.That is, between correction ought not reached
Every time (such as not up to 5 minutes), then sustainable utilization coulomb algorithm (step S110) is electric to obtain estimation
Tankage.When correction interval time reached, and battery current less than electric current threshold value (or center treatment
The load of device is less than load value), then it is corrected program (step S130, S140).The example of reference picture 1
Son, decline curve section 4a can produce vertical segment 4b by after at regular intervals, and in Fig. 1 two
The time difference of individual adjacent vertical segment 4b is exactly to correct interval time, and wherein the example of Fig. 1 is assumed that and worked as
Correction interval time has been when having reached, and battery current is also immediately lower than electric current threshold value (or central processing unit
Load is less than load value), therefore program can be corrected.It is appropriate when setting for the example of Fig. 1
Correction interval time, from decline curve section 4a (or 4a ') that each section gentle in Fig. 1, it is being separated by
Between aligning step (S130, S140) twice, using the estimation battery capacity obtained by the algorithm of storehouse
Change would not deviate considerably from the actual value (curve S1) of battery capacity as curve S2 and curve S3.However,
The present invention does not limit correction interval time be changeless value, correct interval time can also can be
The parameter of adjustment.In addition, when having reached correction interval time, and battery current is not below electric current door
The situation of threshold value, then can refer to the explanation of the embodiment of subsequent figure 4, and it is reached using correcting condition is adjusted
The purpose of correction.
Based on the flow of above-mentioned Fig. 2, the method for the estimation battery capacity of the present embodiment can for example be implemented in figure
The electronic installation 300 with battery 310 shown in 3.In the present embodiment, the electronic installation is, for example,
Intelligent mobile phone, notebook computer or panel computer etc., the battery are intelligent mobile phone, notes type electricity
Lithium ion battery in brain or panel computer, but the present invention not therefore restriction.The electronic installation also may be used
Being any other species with battery or the electronic installation with other functions.Electronic installation 300 is wrapped
Include battery 310, operation processing unit 320, display unit 330, the inspection of voltage detection unit 340, electric current
Survey unit 350 and storage element 360.The coupling of operation processing unit 320 and control display unit 330, electricity
Pressure detection unit 340 and current detecting unit 350.Display unit 330 is used to show battery electric quantity.On
State each unit and be only for help with the annexation of element and illustrate, be not intended to limit the present invention.
The step of judgement and calculation when the method for the estimation battery capacity of the present embodiment is implemented in electronic installation
It is to be realized using operation processing unit 320, such as step S100, S110, S120, S140.And step
S130 can then be completed by the control voltage detection unit 340 of operation processing unit 320.Operation processing unit
320 is, for example, microcontroller (MCU) or central processing unit (CPU).In order to allow user to be able to know that electronics
The battery capacity of device 300, electronic installation 320 is provided with display unit 330, and display unit 330 can
It is controlled by operation processing unit 320 to receive and show battery meter, that is, performs the display in step S110
Estimate showing battery meter for battery capacity or step S140.Display unit 330 be, for example, liquid crystal display,
LED displays, organic luminuous dipolar object display etc., but the present invention does not limit electronic installation
The species of 300 display unit 330.
Voltage detection unit 340 is used to detect the anode (+) of battery 310 and the voltage difference of negative terminal (-).Electricity
Stream detection unit 350 is used to detect that battery 310 supplies electricity to electric current produced during this electronic installation 300.
In practical application, voltage and electric current in order to detect battery, voltage detection unit 340 may include voltage
Sample circuit, current detecting unit 350 may include current sampling circuit, and voltage sample circuit takes with electric current
Sample circuit be art tool usually intellectual prior art in, do not repeat.And the present embodiment
The look-up table for being used then is stored in the storage element 360 of electronic installation 300, such as non-volatility memorizer.
Then, Fig. 4 is refer to, is the method for the estimation battery capacity that another embodiment of the present invention is provided
State diagram.When in normal correction state 400, correcting condition is, for example, that the electric current threshold value of battery is less than 50
Milliampere, and normally sampling state then carries out the flow of Fig. 2, it is such as foregoing.If correcting condition includes school
Positive interval time is 5 minutes, if by the judgement (such as after 25 minutes) of multiple correcting condition, battery
Electric current is not all less than threshold value, i.e., be repeatedly unsatisfactory for correcting condition, then state change is to adjusting correcting condition
500.In the state of adjustment correcting condition 500, electric current threshold value can be increased, such as by 50 milliamperes
It is 55 milliamperes (electric current threshold value increases by 5 milliamperes) to increase, and can also once be increased in other embodiments
Plus 20 milliamperes and be changed into 70 milliamperes, but the present invention not therefore limit.Furthermore, in adjustment calibration bars
In the state of part 500, if having spent 5 minutes again, electric current is still not below electric current threshold value and (is unsatisfactory for school
Positive condition) 55 milliamperes, then increase electric current threshold value again, the electric current of battery is all less than electric current
Threshold value, will be transferred to 60 milliamperes again on electric current threshold value.However, electric current threshold value must also set one
Higher limit, even if that is, increasing electric current threshold value but not allowing more than the higher limit.According to electronics dress
The design put, can in advance estimate the upper limit of rational electric current threshold value, and the upper limit of setting electric current threshold value can
To ensure that the numerical value for obtaining battery electric quantity using look-up table will not excessively deviation.That is, can repeatedly on
Adjust electric current threshold value.Until the upper limit of electric current threshold value, in the present embodiment, the upper limit of electric current threshold value
Therefore for example, 100 milliamperes, but the present invention do not limit.If conversely, the electric current of battery has been less than electricity
Stream threshold value, then represent correcting condition and met, and therefore reverts to the state of normal correction 400.In addition,
After returning to the state of normal correction 400, electric current threshold value can also set and return to initial electric current threshold value,
Such as 50 milliamperes.
On the other hand, in the state of normal correction 400, if the load reduction of central processing unit (CPU) is to low
In one setting load value when, then can change to immediately correction 600 state, that is, be immediately performed step
Rapid S130 and step S140, after the voltage of sampling battery and the battery electric quantity after being corrected, then returns
To the state of normal correction 400.In short, the state diagram of Fig. 4 embodiments can be considered：Using battery
Electric current threshold value is used as the normal correction for performing the flow such as Fig. 1, and the electric current for running into battery is not below electricity
(by once or repeatedly after step S120) during stream threshold value, then can change electric current threshold value and (change
Become correcting condition).Also, except by the use of battery current as the foundation for whether correcting, also working as centre
When the load of reason device (CPU) is less than the load value for setting, cell voltage is sampled immediately, to enter immediately
Row is once corrected, and then returns the basis for estimation by the use of electric current threshold value as normal sampling (400).
(possibility effect of embodiment)
In sum, the method for the estimation battery capacity that the embodiment of the present invention is provided, based on coulomb calculation
Method and the appropriate correcting condition of cooperation, measure cell voltage to correct battery capacity again, and can obtain
More accurate (residue) battery capacity, it is to avoid because of the erroneous judgement of electronic installation caused by outside user is expected
Electricity exhausts and makes data loss.
Embodiments of the invention are the foregoing is only, it simultaneously is not used to limit to the scope of the claims of the invention.
Claims (10)
1. it is a kind of estimate battery capacity method, it is characterised in that be implemented in the electronics with a battery
Device, the battery has an electric current and a voltage, and the method includes：
Judge whether a correcting condition meets；
When the correcting condition is unsatisfactory for, carry out coulomb algorithm with by the electric current of the battery added up with
Obtain one to estimate to consume electricity, and a previous capacity of the battery is subtracted into the estimation and consume electricity, to obtain
One estimates battery capacity；
When the correcting condition meets, detect the voltage of the battery, and the battery that will be measured the voltage
In comparison with a look-up table, to obtain a battery capacity of the battery, the battery capacity is corrected whereby.
2. the method for estimating battery capacity according to claim 1, the previous capacity of the wherein battery is
One initial capacity of the battery or the battery capacity in comparison with the look-up table.
3. it is according to claim 1 estimate battery capacity method, wherein the correcting condition include the battery
The electric current be less than an electric current threshold value.
4. the method for estimating battery capacity according to claim 3, also includes：
When the correcting condition is unsatisfactory for, by electric current threshold value lifting.
5. it is according to claim 1 estimate battery capacity method, wherein the correcting condition include the electronics
The load of one central processing unit of device is less than a load value.
6. the method for estimating battery capacity according to claim 1, also includes：
The battery capacity after showing the estimation battery capacity or correction using a display unit.
7. the method for estimating battery capacity according to claim 1, wherein look-up table includes the battery
The corresponding relation data of the voltage and the battery capacity.
8. it is according to claim 1 estimate battery capacity method, wherein the correcting condition include judge one
Whether correction interval time has reached, and when correction interval time is not reached, then the correcting condition is to be unsatisfactory for.
9. it is according to claim 1 estimate battery capacity method, the wherein battery is secondary cell.
10. it is according to claim 1 estimate battery capacity method, the wherein electronic installation is intelligent hand
Machine, notebook computer or panel computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511031805.3A CN106932723A (en) | 2015-12-31 | 2015-12-31 | The method for estimating battery capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511031805.3A CN106932723A (en) | 2015-12-31 | 2015-12-31 | The method for estimating battery capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106932723A true CN106932723A (en) | 2017-07-07 |
Family
ID=59444789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511031805.3A Pending CN106932723A (en) | 2015-12-31 | 2015-12-31 | The method for estimating battery capacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106932723A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111289902A (en) * | 2018-12-06 | 2020-06-16 | 新盛力科技股份有限公司 | Method for estimating battery electric quantity state |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101169471A (en) * | 2006-10-23 | 2008-04-30 | 王顺兴 | Secondary cell capacity estimation method |
| CN102930173A (en) * | 2012-11-16 | 2013-02-13 | 重庆长安汽车股份有限公司 | SOC(state of charge) online estimation method for lithium ion battery |
| CN103135060A (en) * | 2011-12-02 | 2013-06-05 | 哈尔滨智木科技有限公司 | Method for calculating battery capacity through current integration |
| CN103176129A (en) * | 2011-12-20 | 2013-06-26 | 财团法人车辆研究测试中心 | Residual electric quantity estimating method of electric vehicles |
| CN103529389A (en) * | 2012-07-03 | 2014-01-22 | 鸿富锦精密工业（深圳）有限公司 | Battery power amount calculation method and system |
| US9146280B2 (en) * | 2011-10-26 | 2015-09-29 | Industrial Technology Research Institute | Method and system for estimating a capacity of a battery |
-
2015
- 2015-12-31 CN CN201511031805.3A patent/CN106932723A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101169471A (en) * | 2006-10-23 | 2008-04-30 | 王顺兴 | Secondary cell capacity estimation method |
| US9146280B2 (en) * | 2011-10-26 | 2015-09-29 | Industrial Technology Research Institute | Method and system for estimating a capacity of a battery |
| CN103135060A (en) * | 2011-12-02 | 2013-06-05 | 哈尔滨智木科技有限公司 | Method for calculating battery capacity through current integration |
| CN103176129A (en) * | 2011-12-20 | 2013-06-26 | 财团法人车辆研究测试中心 | Residual electric quantity estimating method of electric vehicles |
| CN103529389A (en) * | 2012-07-03 | 2014-01-22 | 鸿富锦精密工业（深圳）有限公司 | Battery power amount calculation method and system |
| CN102930173A (en) * | 2012-11-16 | 2013-02-13 | 重庆长安汽车股份有限公司 | SOC(state of charge) online estimation method for lithium ion battery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111289902A (en) * | 2018-12-06 | 2020-06-16 | 新盛力科技股份有限公司 | Method for estimating battery electric quantity state |
| CN111289902B (en) * | 2018-12-06 | 2022-02-01 | 新盛力科技股份有限公司 | Method for estimating battery electric quantity state |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI420126B (en) | Device for battery capacity prediction and method for the same | |
| JP6012447B2 (en) | Semiconductor device, battery pack, and electronic device | |
| CN1102740C (en) | Monitoring technique for accurately determining residual capacity of battery | |
| US10587135B2 (en) | Adaptive battery charging | |
| US20100090651A1 (en) | Method and apparatus for determining state of charge of a battery | |
| CN108475935A (en) | A kind of battery charging management method and terminal | |
| US9651624B2 (en) | Systems and methods for state of charge estimation | |
| CN103033758A (en) | Display electric quantity value calibration method and device | |
| CN106646256B (en) | Battery capacity calculating method | |
| TWI700505B (en) | Methods and apparatus for estimating a state of health of a battery | |
| CN102739845B (en) | Electronic device capable of detecting battery power and battery power detection method | |
| EP2880456B1 (en) | System and method for posteriori adaptation of a state of charge model in a battery | |
| CN105472135B (en) | A kind of display methods and device of mobile terminal electricity | |
| WO2000076018A1 (en) | Battery dropout correction for battery monitoring in mobile unit | |
| CN107037369A (en) | The method and electric power controller of the electricity percentage of accurate estimation battery | |
| US20190391210A1 (en) | Method and device for acquiring battery power level and electronic device | |
| US20180261889A1 (en) | Battery state estimating device and power supply device | |
| US10073144B2 (en) | Method of determining the state of charge of a battery of an electronic appliance | |
| TWI585429B (en) | Method of estimating battery capacity | |
| US20210215763A1 (en) | Method for improving accuracy of capacity measurement | |
| CN106932723A (en) | The method for estimating battery capacity | |
| CN107450704A (en) | A kind of control method, device and the terminal of terminal abnormal power consumption | |
| US20210215766A1 (en) | Model-based capacity and resistance correction for rechargeable battery fuel gauging | |
| CN109669138A (en) | A kind of method of precise determination power lead storage battery residual capacity | |
| CN108983100A (en) | The processing method and processing device of battery dump energy |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170707 |