CN106772060B - Electric quantity display method and device based on energy - Google Patents
Electric quantity display method and device based on energy Download PDFInfo
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- CN106772060B CN106772060B CN201610998923.XA CN201610998923A CN106772060B CN 106772060 B CN106772060 B CN 106772060B CN 201610998923 A CN201610998923 A CN 201610998923A CN 106772060 B CN106772060 B CN 106772060B
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- energy
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- electric discharge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/3644—Constructional arrangements
- G01R31/3646—Constructional arrangements for indicating electrical conditions or variables, e.g. visual or audible indicators
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/3644—Constructional arrangements
- G01R31/3648—Constructional arrangements comprising digital calculation means, e.g. for performing an algorithm
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3835—Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
Abstract
The invention discloses a kind of electric quantity display method and device based on energy, method include: by battery discharge curve be fitted to multistage Straight Combination at cell voltage profiles；Obtain corresponding electricity and voltage at each section of straight line endpoint；And according to corresponding electricity at each section of straight line endpoint and the energy percentage of the electric discharge at voltage calculating any point to be shown.In the above manner, the present invention energy that intuitively accurate reaction cell is laid at present and can use the time, enhance user experience.
Description
Technical field
The present invention relates to battery discharge technical fields, more particularly to a kind of electric quantity display method and dress based on energy
It sets.
Background technique
The electricity of industry mobile terminal shows to be essentially all the percentages show based on the accumulative electricity of electric current, institute at present
It is also Milliampere Hour (mAh) for unit with its unit, under certain use state, user is simply to think: every 1% electricity
It is substantially the same for measuring the time used.But actual conditions are, the power consuming units inside mobile terminal, either radio-frequency part
Divide, including power amplifier, receiving unit, transmitting unit etc. or baseband portion, including CPU, storage unit, LCM etc. are substantially all
That energy consumption is assessed based on power (W), power P=electric current I × voltage U, from the discharge voltage profile figure of battery it is found that
The voltage of battery is variation during discharge, and especially when full electricity and electricity very little, cell voltage variation is special
Fastly, therefore at present the electricity percentages show based on electric current of industry is defective, while also being misguided the consumer to a certain degree.
Summary of the invention
The embodiment of the invention provides a kind of electric quantity display method and device based on energy, intuitively can accurately react
The energy and use the time that battery is laid at present, enhance user experience.
The present invention provides a kind of electric quantity display method based on energy, comprising: it is straight that battery discharge curve is fitted to multistage
The cell voltage profiles that line is combined into；Obtain corresponding electricity and voltage at each section of straight line endpoint；And it is straight according to each section
Corresponding electricity and voltage calculate the energy percentage of the electric discharge at any point to be shown at line endpoints.
Wherein, the slope of multistage straight line is different.
Wherein, the energy hundred of the electric discharge at any point is calculated according to corresponding electricity at each section of straight line endpoint and voltage
Point than the step of include: that either segment linear discharge starting point is calculated according to corresponding electricity at each section of straight line endpoint and voltage
Electric discharge energy；According to the electric discharge of any point on the energy balane either segment straight line of the electric discharge of either segment linear discharge starting point
Energy；Calculate the energy percentage of the electric discharge of any point, wherein energy percentage is the energy and battery of the electric discharge of any point
The ratio between total energy.
Wherein, according to the electric discharge of any point on the energy balane either segment straight line of the electric discharge of either segment linear discharge starting point
Energy the step of include: calculate either segment linear discharge starting point electric discharge energy and either segment linear discharge starting point with appoint
The sum of the energy to discharge between a little, wherein before the energy of the electric discharge of either segment linear discharge starting point is either segment straight line
All sections of linear discharges the sum of energy.
Wherein, the energy to discharge between either segment linear discharge starting point and any point is either segment linear discharge starting point and appoints
Multistage Straight Combination between a little at cell voltage profiles and the area that is surrounded of coordinate system and either segment linear discharge rise
The product of point and the electricity difference of any point.
The present invention also provides a kind of electric quantity display devices based on energy, comprising: straight line fitting module, for battery to be put
Electric curve matching at multistage Straight Combination at cell voltage profiles；Module is obtained, is connect with straight line fitting module, for obtaining
Corresponding electricity and voltage at each section of straight line endpoint；And energy computation module, it is connect with module is obtained, for according to each
Corresponding electricity and voltage calculate the energy percentage of the electric discharge at any point to be shown at section straight line endpoint.
Wherein, the slope of multistage straight line is different.
Wherein, energy computation module is used for: being calculated according to corresponding electricity at each section of straight line endpoint and voltage any
The energy of the electric discharge of section linear discharge starting point；Energy balane either segment according to the electric discharge of either segment linear discharge starting point is straight
The energy of the electric discharge of any point on line；Calculate the energy percentage of the electric discharge of any point, wherein energy percentage is any point
The ratio between energy and total energy of battery of electric discharge.
Wherein, energy computation module is used for: energy and the either segment for calculating the electric discharge of either segment linear discharge starting point are straight
The sum of the energy that discharges between line electric discharge starting point and any point, wherein the energy of the electric discharge of either segment linear discharge starting point is
The sum of the energy of all sections of linear discharges before either segment straight line.
Wherein, the energy to discharge between either segment linear discharge starting point and any point is either segment linear discharge starting point and appoints
Multistage Straight Combination between a little at cell voltage profiles and the area that is surrounded of coordinate system and either segment linear discharge rise
The product of point and the electricity difference of any point.
Through the above scheme, the beneficial effects of the present invention are: the present invention is straight by the way that battery discharge curve is fitted to multistage
The cell voltage profiles that line is combined into；Obtain corresponding electricity and voltage at each section of straight line endpoint；And it is straight according to each section
Corresponding electricity and voltage calculate the energy percentage of the electric discharge at any point to be shown at line endpoints, can be intuitive quasi-
The energy and use the time that true reaction cell is laid at present, enhance user experience.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.Wherein:
Fig. 1 is the flow diagram of the electric quantity display method based on energy of the embodiment of the present invention；
Fig. 2 is the schematic diagram of the cell discharge voltage curve of the straight line fitting of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the electric quantity display device based on energy of the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole embodiments.Based on this
Embodiment in invention, those of ordinary skill in the art are obtained every other under the premise of not making creative labor
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 is the flow diagram of the electric quantity display method based on energy of the embodiment of the present invention.The electricity based on energy
Amount display method is applied to mobile terminal.As shown in Figure 1, the electric quantity display method based on energy includes:
Step S10: by battery discharge curve be fitted to multistage Straight Combination at cell voltage profiles.
In embodiments of the present invention, by battery discharge curve be fitted to N sections of Straight Combinations at cell voltage profiles,
In, N is the positive integer more than or equal to 1.And the straight line number of segment N for including in the cell voltage profiles being fitted to can according to need and set
It sets, this is not restricted.And the slope of multistage straight line is different.Referring to fig. 2, that battery discharge curve is fitted to 5 sections of differences is oblique
The straight line of rate, respectively straight line L1, L2, L3, L4, L5.
Step S11: corresponding electricity and voltage at each section of straight line endpoint are obtained.
In embodiments of the present invention, the electricity for taking battery total is Q, and corresponding electricity is Q1, Q2 at each section of straight line endpoint,
Q3, Q4；Corresponding electrical voltage point is V1, V2, V3, V4, V5.Wherein, for corresponding electricity at each section of straight line endpoint, mesh
Preceding mobile terminal has all had calculation method, can be obtained according to the existing calculation method, therefore not to repeat here.
Step S12: the energy of the electric discharge at any point is calculated according to corresponding electricity at each section of straight line endpoint and voltage
Percentage is measured to be shown.
In step s 12, further comprise:
Step S120: either segment linear discharge starting point is calculated according to corresponding electricity at each section of straight line endpoint and voltage
The energy of the electric discharge at place.
In embodiments of the present invention, the electricity of the starting point of first segment straight line is the total electricity Q of battery.Either segment linear discharge
The energy of the electric discharge of starting point be either segment straight line before all sections of linear discharges the sum of energy.Specifically, according to physics
Learn formula it is found that any point electricity Q0=∫ Idt, W=UIt=∫ udt* ∫ Idt.Therefore, the starting point of second segment straight line can be obtained
Q1, that is, energy W1=(V1+V2) the * T1* (Q-Q1)/2 of the electric discharge of the terminal Q1 of first segment straight line；Similarly third section straight line
Starting point, the i.e. energy of the corresponding electric discharge of terminal Q2 of second segment straight line are W2=W1+ (V2+V3) * (T2-T1) * (Q1-Q2)/2,
It can similarly calculate the starting point of the 4th section of straight line, i.e. the energy W3 of the corresponding electric discharge of terminal Q3 of third section straight line, the 5th section
The starting point of straight line, i.e., the energy W4 of the corresponding electric discharge of terminal Q4 of the 4th section straight line.
Step S121: according to any point on the energy balane either segment straight line of the electric discharge of either segment linear discharge starting point
The energy of electric discharge.
In step S121, the energy and either segment linear discharge starting point of the electric discharge of either segment linear discharge starting point are calculated
The sum of energy to discharge between any point.Wherein, the energy to discharge between either segment linear discharge starting point and any point is to appoint
Multistage Straight Combination between one section of linear discharge starting point and any point at cell voltage profiles and the face that is surrounded of coordinate system
The long-pending product with either segment linear discharge starting point and the electricity difference of any point.Continue with cell voltage profiles shown in Fig. 2 be
, energy W '=W1+W2+ (V '+V3) * (T '-T2) * (Q2- of corresponding electric discharge at the intermediate any point T ' of third section straight line L3
Q')/2.Wherein, the cell voltage profiles between third section straight line L3 electric discharge starting point Q2 and any point T ' and coordinate system are surrounded
Area is (V '+V3) * (T '-T2)/2.
Step S122: the energy percentage of the electric discharge of any point is calculated, wherein energy percentage is the electric discharge of any point
The ratio between energy and total energy of battery.
Continue by taking cell voltage profiles shown in Fig. 2 as an example, it is corresponding at the intermediate any point T ' of third section straight line L3 to put
Energy percentage η=W '/(W1+W2+W3+W4+W5) of electricity.Therefore, accordingly, for being fitted to the cell voltages of N sections of straight lines
Curve, energy percentage η={ W1+W2 ...+W at any point on Y straight lineY-1+(V’+VY-1)*(T’-TY-1)(Q’-
QY-1)/2}/(W1+W2+…+WN), wherein Y is positive integer, and Y is less than N.
In embodiments of the present invention, the dump energy percentage for any point that mobile terminal is finally shown subtracts this for 1
Some energy percentage η of corresponding electric discharge.In this way, the present invention by the way of piecewise fitting, calculates energy percentage, than
Using traditional electricity percentage, energy that more intuitively accurate reaction cell is laid at present and the time can be used, enhancing is used
Family experience.
Fig. 3 is the structural schematic diagram of the electric quantity display device based on energy of the embodiment of the present invention.As shown in figure 3, being based on
The electric quantity display device 10 of energy includes: straight line fitting module 11, obtains module 12 and energy computation module 13.Straight line fitting
Module 11 be used for by battery discharge curve be fitted to multistage Straight Combination at cell voltage profiles.It obtains module 12 and straight line is quasi-
It molds block 11 to connect, for obtaining corresponding electricity and voltage at each section of straight line endpoint.Energy computation module 13 and acquisition
Module 12 connects, for calculating the energy of the electric discharge at any point according to corresponding electricity at each section of straight line endpoint and voltage
Percentage is to be shown.
The electric quantity display device 10 based on energy of the embodiment of the present invention is preferably mobile terminal, for showing electricity.
In embodiments of the present invention, straight line fitting module 11 by battery discharge curve be fitted to N sections of Straight Combinations at cell voltage it is bent
Line, wherein N is the positive integer more than or equal to 1.And the straight line number of segment N for including in the cell voltage profiles being fitted to can basis
It needs to be arranged, this is not restricted.And the slope of multistage straight line is different.The electricity for taking battery total is Q, for each section of straight line
Corresponding electricity at endpoint, current mobile terminal have all had calculation method, and obtaining module 12 can be according to the existing meter
Calculation method obtains, and therefore not to repeat here.
In embodiments of the present invention, energy computation module 13 is used for: according to corresponding electricity at each section of straight line endpoint with
And voltage calculates the energy of the electric discharge of either segment linear discharge starting point；According to the energy of the electric discharge of either segment linear discharge starting point
Amount calculates the energy of the electric discharge of any point on either segment straight line；Calculate the energy percentage of the electric discharge of any point, wherein energy hundred
Divide than the ratio between the energy of the electric discharge for any point and total energy of battery.
Wherein, energy computation module 13 is straight in the energy balane either segment of the electric discharge according to either segment linear discharge starting point
On line when the energy of the electric discharge of any point, be used for: energy and the either segment for calculating the electric discharge of either segment linear discharge starting point are straight
The sum of the energy to discharge between line electric discharge starting point and any point.Wherein, the energy of the electric discharge of either segment linear discharge starting point is
The sum of the energy of all sections of linear discharges before either segment straight line.It discharges between either segment linear discharge starting point and any point
Multistage Straight Combination of the energy between either segment linear discharge starting point and any point at cell voltage profiles and coordinate system institute
The product of the electricity difference of the area and either segment linear discharge starting point and any point that surround.
In embodiments of the present invention, the dump energy percentage for any point that electric quantity display device 10 is finally shown subtracts for 1
Remove the energy percentage of the corresponding electric discharge of any point.In this way, the present invention by the way of piecewise fitting, calculates energy percentage
Than that energy that more intuitively accurate reaction cell is laid at present and the time can be used, increased than using traditional electricity percentage
Strong user experience.
In conclusion the present invention by by battery discharge curve be fitted to multistage Straight Combination at cell voltage profiles；
Obtain corresponding electricity and voltage at each section of straight line endpoint；And according to corresponding electricity and electricity at each section of straight line endpoint
Pressure calculates the energy percentage of the electric discharge at any point to be shown, can intuitively be laid at present accurate reaction cell
Energy and use the time, enhance user experience.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (1)
1. a kind of electric quantity display method based on energy, which is characterized in that the described method includes: battery discharge curve is fitted to
Multistage Straight Combination at cell voltage profiles；
Obtain corresponding electricity and voltage at each section of straight line endpoint；And
According to corresponding electricity at each section of straight line endpoint and voltage calculate the energy percentage of the electric discharge at any point with into
Row display,
The slope of the multistage straight line is different,
The energy percentage that the electric discharge at any point is calculated according to corresponding electricity at each section of straight line endpoint and voltage
The step of include: that putting for either segment linear discharge starting point is calculated according to corresponding electricity at each section of straight line endpoint and voltage
The energy of electricity；
According to the electric discharge of any point on either segment straight line described in the energy balane of the electric discharge of the either segment linear discharge starting point
Energy；
Calculate the energy percentage of the electric discharge of any point, wherein the energy percentage is the electric discharge of any point
The ratio between total energy of energy and the battery,
Any point on the either segment straight line according to the energy balane of the electric discharge of the either segment linear discharge starting point
The step of energy of electric discharge includes: the energy and the either segment straight line for the electric discharge for calculating the either segment linear discharge starting point
The sum of the energy to discharge between electric discharge starting point and any point, wherein the energy of the electric discharge of either segment linear discharge starting point
For the sum of the energy of all sections of linear discharges before the either segment straight line.
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| CN201610998923.XA CN106772060B (en) | 2016-11-09 | 2016-11-09 | Electric quantity display method and device based on energy |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610998923.XA CN106772060B (en) | 2016-11-09 | 2016-11-09 | Electric quantity display method and device based on energy |
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| CN106772060A CN106772060A (en) | 2017-05-31 |
| CN106772060B true CN106772060B (en) | 2019-12-03 |
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| CN107565643B (en) * | 2017-09-22 | 2022-03-01 | 惠州Tcl移动通信有限公司 | Method for starting battery charging based on power consumption detection, storage device and terminal |
| CN110676522B (en) * | 2019-09-29 | 2020-07-14 | 华人运通(江苏)技术有限公司 | Battery output power adjusting method, battery management system and storage medium |
| CN115980605A (en) * | 2022-09-19 | 2023-04-18 | 伏达半导体(合肥)股份有限公司 | Method for characterizing a plurality of battery cells, battery parameter estimation device and method |
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| DE19960761C1 (en) * | 1999-12-16 | 2001-05-23 | Daimler Chrysler Ag | Battery residual charge monitoring method uses difference between minimum current and current at intersection point between current/voltage curve and minimum voltage threshold of battery |
| CN101430366B (en) * | 2008-12-12 | 2012-02-15 | 苏州金百合电子科技有限公司 | Battery charge state detection method |
| CN102121973B (en) * | 2011-01-04 | 2012-11-07 | 武汉理工大学 | Method for testing net energy of electrical vehicle power battery |
| CN103293478A (en) * | 2012-02-29 | 2013-09-11 | 天宇通讯科技(昆山)有限公司 | Battery pack energy metering indicating device of electromobile |
| CN103257323B (en) * | 2013-06-03 | 2016-03-23 | 清华大学 | A kind of method of estimation of lithium ion battery residue utilisable energy |
| CN104459551A (en) * | 2014-11-28 | 2015-03-25 | 山东理工大学 | Electric vehicle power battery state-of-energy estimation method |
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Effective date of registration: 20191112 Address after: 518000 building a, floor 3, building a, No. 3, Shishan brick factory industrial road, Zhoushi Road, Shixin community, Shiyan street, Bao'an District, Shenzhen City, Guangdong Province Applicant after: Shenzhen shunxintong Electronic Co., Ltd Address before: No. 32, Vanke City, Haicang District, Xiamen City, Fujian Province Applicant before: Lin Zefeng |
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