CN106896330B - A kind of data processing method and device about battery dump energy - Google Patents
A kind of data processing method and device about battery dump energy Download PDFInfo
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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]
- G01R31/385—Arrangements for measuring battery or accumulator variables
- G01R31/387—Determining ampere-hour charge capacity or SoC
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
- G01R31/387—Determining ampere-hour charge capacity or SoC
- G01R31/388—Determining ampere-hour charge capacity or SoC involving voltage measurements
Abstract
The embodiment of the present application discloses a kind of data processing method and device about battery dump energy, realizes the purpose for determining battery charging and discharging curve ripple peak data and trough data.Wherein, which comprises obtain the sampled data set of battery dump energy in the first preset time period；It is concentrated from the sampled data and determines assignment set according to preset step-length；Sampled data is selected to be assigned to roller-coaster array from the assignment set；After the roller-coaster array is assigned, if the corresponding sampled data of the object element meets wave crest condition, the corresponding sampled data of the object element is then determined as wave crest data, the wave crest data are that battery terminates to charge or start corresponding battery dump energy when electric discharge；If the corresponding sampled data of the object element meets trough condition, the corresponding sampled data of the object element is determined as trough data, the trough data are corresponding battery dump energy when battery terminates to discharge or start to charge.
Description
Technical field
This application involves electric car field more particularly to a kind of data processing methods and dress about battery dump energy
It sets.
Background technique
Electric car is the main R&D direction of Future New Energy Source automobile, however the ability of battery is always in electric car
It is the main bottleneck for restricting Development of Electric Vehicles, to solve this problem, in addition to battery manufacturer increases the research and development power of novel battery
Degree improves other than battery performance, and user reasonably uses electric car, and can also maintain battery to a certain extent uses the longevity
Life.Wherein, the charge and discharge behavior in user's use process is affected to the performance of battery, for example, overcharge, charge less electricity and
Deep discharge behavior etc. will lead to reduction battery life.Wherein, overcharge refers to that battery charging is excessive, is more than rated capacity；
Charge less electricity refers to battery undercharge, and rated capacity is not achieved；Deep discharge refers to that the remaining capacity after electric power storage tank discharge is close
In 0.By studying the sampled data of battery dump energy, the charge and discharge behavior of user can be obtained to a certain extent.Battery
During the charging process, the substantially linear ascendant trend of battery dump energy；During discharge, battery dump energy is basic for battery
Upper linear downward trend.So the song with wave crest and trough can be formed according to the charge and discharge sampled data of battery
Line.The wave crest data and trough data for how determining the curve are of great significance for the research of user's charge and discharge behavior.
Summary of the invention
In order to solve technical problem of the existing technology, this application provides a kind of processing about battery dump energy
Method and device realizes the purpose for determining battery charging and discharging curve ripple peak data and trough data.
The embodiment of the present application provides a kind of data processing method about battery dump energy, which comprises
Obtain the sampled data set of battery dump energy in the first preset time period；
It is concentrated from the sampled data and determines assignment set according to preset step-length, include the sampling time in the assignment set
Continuous at least three sampled data of point, and the number of sampled data is adopted less than sampled data concentration in the assignment set
The number of sample data, the step-length refer to the sampling jumped between the assignment set that this is determined and the assignment set that last time determines
The number of data；
Sampled data is selected to be assigned to roller-coaster array from the assignment set；The roller-coaster array includes starting member
Element, terminal element and at least one neutral element, each element respectively correspond a sampled data, wherein the starting member
The sampling time point of the corresponding sampled data of element is first time point, the sampling time of the corresponding sampled data of the terminal element
Point was the second time point, and the sampling time point of the corresponding sampled data of described at least one neutral element is third time point, institute
Third time point is stated between the first time point and second time point；At least one described neutral element includes target
Element；
After the roller-coaster array is assigned, if the corresponding sampled data of the object element meets wave crest condition,
The corresponding sampled data of the object element is then determined as wave crest data, the wave crest data are that battery terminates to charge or start
Corresponding battery dump energy when electric discharge；If the corresponding sampled data of the object element meets trough condition, by the mesh
The corresponding sampled data of mark element is determined as trough data, and the trough data are that battery is corresponding when terminating to discharge or start to charge
Battery dump energy.
Optionally, the wave crest condition are as follows: the corresponding sampled data of the object element is greater than in the roller-coaster array
The corresponding sampled data of other elements.
Optionally, the trough condition are as follows: the corresponding sampled data of the object element is less than in the roller-coaster array
The corresponding sampled data of other elements.
Optionally, the length of the roller-coaster array is less than the length between two adjacent wave crest data and/or two
Length between adjacent trough data.
Optionally, when the length of the roller-coaster array is according to the sampling period of the sampled data and most short charge and discharge
Between be determined, the most short charge and discharge time include most short charging time or most short discharge time.
Optionally, when the most short charge and discharge time corresponding according to the wave crest data of the second preset time period battery sampling
Between point corresponding with trough data sampling time point determination, the sampling time point the latest of second preset time period is not later than institute
State the earliest sampling time point of the first preset time period.
Optionally, the method also includes:
Determine that the sampled data set corresponds to the total number of wave crest data and the wave crest data in the first preset range
Number；
If the number of the wave crest data in first preset range and the ratio of the total number of the wave crest data are less than
Or be equal to first threshold, then generate the first prompt information；
And/or
Determine that the sampled data set corresponds to the total number of trough data and the trough data in the second preset range
Number；
If the number of the trough data in second preset range and the ratio of the total number of the trough data are less than
Or be equal to second threshold, then generate the second prompt information.
Optionally, it is getting in the first preset time period after the sampled data set of battery dump energy, the method
Further include:
Delete the sampled point for not getting SOC sampled data.
Optionally, it is getting in the first preset time period after the sampled data set of battery dump energy, the method
Further include:
Retain one of sampled data in the continuously identical sampled data of multiple numerical value, deletes remaining hits
According to.
The embodiment of the present application provides a kind of data processing equipment about battery dump energy, and described device includes: to obtain
Take unit, set determination unit, assignment unit and electricity determination unit；
Wherein, the acquiring unit, for obtaining the sampled data set of battery dump energy in the first preset time period；
The set determination unit determines assignment set according to preset step-length for concentrating from the sampled data, described
In assignment set include continuous at least three sampled data of sampling time point, and in the assignment set sampled data number
Less than the number that the sampled data concentrates sampled data, the step-length refers to what the assignment set that this is determined and last time determined
The number for the sampled data jumped between assignment set；
The assignment unit, for selecting sampled data to be assigned to roller-coaster array from the assignment set；The mistake
Roller coaster array includes starting elemental, terminal element and at least one neutral element, and each element respectively corresponds a hits
According to, wherein the sampling time point of the corresponding sampled data of the starting elemental is first time point, and the terminal element is corresponding
The sampling time point of sampled data is the second time point, the sampling time of the corresponding sampled data of described at least one neutral element
Point is third time point, and the third time point is between the first time point and second time point；Described at least one
A neutral element includes object element；
The electricity determination unit, for after the roller-coaster array is assigned, if the object element is corresponding
Sampled data meets wave crest condition, then the corresponding sampled data of the object element is determined as wave crest data, the wave crest number
According to battery dump energy corresponding when terminating to charge or start to discharge for battery；If the corresponding sampled data of the object element is full
Sufficient trough condition, then be determined as trough data for the corresponding sampled data of the object element, and the trough data are battery knot
Beam discharge or while starting to charge corresponding battery dump energy.
Optionally, the wave crest condition are as follows: the corresponding sampled data of the object element is greater than in the roller-coaster array
The corresponding sampled data of other elements.
Optionally, the trough condition are as follows: the corresponding sampled data of the object element is less than in the roller-coaster array
The corresponding sampled data of other elements.
Optionally, the length of the roller-coaster array is less than the length between two adjacent wave crest data and/or two
Length between adjacent trough data.
Optionally, when the length of the roller-coaster array is according to the sampling period of the sampled data and most short charge and discharge
Between be determined, the most short charge and discharge time include most short charging time or most short discharge time.
Optionally, when the most short charge and discharge time corresponding according to the wave crest data of the second preset time period battery sampling
Between point corresponding with trough data sampling time point determination, the sampling time point the latest of second preset time period is not later than institute
State the earliest sampling time point of the first preset time period.
Optionally, described device further include:
First several determination unit and first information generation unit；And/or second several determination unit and the second information are given birth to
At unit；
Described first several determination unit, for determining that the sampled data set corresponds to the total number of wave crest data and
The number of wave crest data in one preset range；
The first information generation unit, if number and the wave for the wave crest data in first preset range
The ratio of the total number of peak data is less than or equal to first threshold, then generates the first prompt information；
Described second several determination unit, for determining that the sampled data set corresponds to the total number of trough data and
The number of trough data in two preset ranges；
Second information generating unit, if number and the wave for the trough data in second preset range
The ratio of the total number of paddy data is less than or equal to second threshold, then generates the second prompt information.
Optionally, described device further include:
First delete unit, for the sampled data set for getting battery dump energy in the first preset time period it
Afterwards, the sampled point for not getting SOC sampled data is deleted.
Optionally, described device further include:
Second delete unit, for the sampled data set for getting battery dump energy in the first preset time period it
Afterwards, retain one of sampled data in the continuously identical sampled data of multiple numerical value, delete remaining sampled data.
The application determines assignment set according to preset step-length by concentrating from the sampled data, and from the assignment set
Middle selection sampled data is assigned to roller-coaster array, after the roller-coaster array is assigned, if the object element is corresponding
Sampled data meet wave crest condition, then the corresponding sampled data of the object element is determined as wave crest data；If the mesh
The corresponding sampled data of mark element meets trough condition, then the corresponding sampled data of the object element is determined as trough number
According to realize the determination to battery dump energy curve ripple peak data and trough data.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in application, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of flow chart for data processing method about battery dump energy that the embodiment of the present application one provides；
Fig. 2 is the state-of-charge primitive curve schematic diagram for certain battery that the embodiment of the present application one provides；
Fig. 3 is another schematic diagram of the state-of-charge primitive curve for certain battery that the embodiment of the present application one provides；
Fig. 4 is the schematic illustration for the roller-coaster array that the embodiment of the present application one provides；
Fig. 5 is the data processing method about battery dump energy that provides of the embodiment of the present application one to wave crest data and wave
The schematic diagram that paddy data identify；
Fig. 6 is a kind of structural frames for data processing equipment about battery dump energy that the embodiment of the present application two provides
Figure.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only this
Apply for a part of the embodiment, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall in the protection scope of this application.
Embodiment one:
Referring to Fig. 1, which is a kind of data processing method about battery dump energy that the embodiment of the present application one provides
Flow chart.
Data processing method provided in this embodiment about battery dump energy includes the following steps:
Step S101: the sampled data set of battery dump energy in the first preset time period is obtained.
The parameter for characterizing battery dump energy may include battery charge state (State of Charge, abbreviation SOC),
Refer to the residual capacity after battery is lain idle using a period of time or for a long time and the ratio of its capacity under full of electricity condition
Value, the value of SOC is between 0%-100%, it is of course also possible to include other parameters, the application is not specifically limited.In this implementation
In example, battery dump energy is indicated using SOC, then the voltage sensor that can use in electric car is sampled according to certain
Voltage value that frequency sampling obtains and other parameters obtain the sampled data of battery charge state.
After getting the sampled data of battery charge state, the sampled data can be pre-processed.
Referring to fig. 2, which is the state-of-charge primitive curve schematic diagram of certain battery, and abscissa is sampled point in figure, indulges and sits
It is designated as SOC value.Due to sensor sample data loss, abnormal, the storage exception of network transmission etc., cause to be likely to occur
Sampled point does not get the phenomenon that corresponding SOC sampled data.Such as Fig. 2, it will not get the sampling of SOC sampled data
Point is assigned a value of 0, naturally it is also possible to be assigned a value of other values, or without assignment.Since this phenomenon will affect SOC curve wave crest
The determination of data and trough data, so needing to delete the sampled point for not getting SOC sampled data.
Referring to Fig. 3, which is another schematic diagram of the state-of-charge primitive curve of certain battery, and abscissa is sampling in figure
Point, ordinate are SOC value.Fig. 3 can be regarded as the enlarged drawing of Fig. 2.From figure 3, it can be seen that SOC curve is being different from standard just
The curve of string function, cosine function or other rule variations, may have " peak value is flat " (dashed circle among such as Fig. 3
In curve shown in) the case where, so-called " peak value is flat " refers to that continuous multiple sampled data numerical value are all the same.In order to enable determining
Wave crest data and trough data it is more accurate, can obtain the first preset time period in battery dump energy sampled data
After collection, by that will retain one of sampled data in the identical sampled data of continuous multiple numerical value, (such as first adopted
Sample data), delete the phenomenon that mode of remaining sampled data eliminates " peak value is flat ".
It is understood that above two phenomenon can also exist there is only one of which.If the latter, originally
The step of application does not get the sampled point of SOC sampled data to deletion in the identical hits of continuous multiple numerical value
The sequencing of the step of according to middle reservation one of sampled data is defined.
Step S102: it is concentrated from the sampled data and determines assignment set according to preset step-length.
It in the present embodiment, include continuous at least three sampled data of sampling time point, and institute in the assignment set
The number for stating sampled data in assignment set concentrates the number of sampled data less than the sampled data, and the step-length refers to this
The number for the sampled data jumped between the assignment set that determining assignment set and last time determine.
Assuming that the assignment set that last time determines includes sampled data Ai-n,Ai-n+1,...,Ai,Ai+1,...,Ai+m-1,Ai+m, i
For the serial number of sampled data, m and n are the integer not equal to 0, and mn > 0, the sampling time point of these sampled datas are continuous.
This assignment set determined includes sampled data Ai-n+k,Ai-n+1+k,...,Ai+k,Ai+1+k,...,Ai+m-1+k,Ai+m+k, and these
The sampling time point of sampled data is continuous.So the step-length, that is, the tax that this assignment set determined was determined with last time
The number for the sampled data jumped between value set is k, and the k is the integer not equal to 0.Wave crest data are omitted in order to reduce
And/or the case where trough data, it is described | k | < | m+n |.Wave crest data and trough data are not omitted in order to realize, the k=±
1。
For example, it is assumed that the assignment set that last time determines includes sampled data Ai-2,Ai-1,Ai,Ai+1,Ai+2If step-length
It is 1, then this assignment set determined may include sampled data Ai-1,Ai,Ai+1,Ai+2,Ai+3Or Ai-3,Ai-2,Ai-1,Ai,
Ai+1.If step-length is 2, then this assignment set determined may include Ai,Ai+1,Ai+2,Ai+3,Ai+4Or Ai-4,Ai-3,Ai-2,
Ai-1,Ai.And so on.
Step S103: sampled data is selected to be assigned to roller-coaster array from the assignment set.
In the present embodiment, after the assignment set that this has been determined, sampled data is chosen from the assignment set and is assigned
It is worth to the roller-coaster array.The roller-coaster array includes starting elemental, terminal element and at least one neutral element, each
Element respectively corresponds a sampled data, wherein the sampling time point of the corresponding sampled data of the starting elemental is first
Time point, the sampling time point of the corresponding sampled data of the terminal element are the second time point, at least one described cental element
The sampling time point of the corresponding sampled data of element is third time point, and the third time point is in the first time point and described
Between second time point；At least one described neutral element includes object element, and the object element is for determining wave crest data
With trough data.
Assuming that the roller-coaster array is Bj-u,Bj-u+1,...,Bj,Bj+1,...,Bj+v-1,Bj+v, wherein j is the sequence of element
Number, u and v are the integer not equal to 0, and uv > 0.If the starting elemental is Bj-u, then the terminal element is Bj+v, institute
State Bj-u+1,...,Bj,Bj+1,...,Bj+v-1It is neutral element.Each element respectively corresponds the sampling in an assignment set
Data, i.e. element and sampled data are one-to-one relationships, rather than one-to-many or many-to-one relationship.
Specifically, if u=n and v=m, and this assignment set determined includes sampled data Ai-n+k,Ai-n+1+k,...,
Ai+k,Ai+1+k,...,Ai+m-1+k,Ai+m+k, then the roller-coaster array Bj-u=Ai-n+k,Bj-u+1=Ai-n+1+k,...,Bj=
Ai+k,Bj+1=Ai+1+k,...,Bj+v=Ai+m-1+k,Bj+v=Ai+m+k, i.e., all sampled datas in the described assignment set are one by one
The element being assigned in roller-coaster array.
If | u | < | n | and/or | v | < | m |, need to select identical as roller-coaster array element from assignment set
Several sampled datas carries out assignment.It when selecting, can be selected according to preset rules, the preset rules can be
A sampled data is chosen at interval of s sampled data and carries out assignment etc., and those skilled in the art can according to actual needs certainly
Row design.
For example, it is assumed that this assignment set determined includes Ai-2,Ai-1,Ai,Ai+1,Ai+2, the roller-coaster array is
Bi-1,Bi,Bi+1, then assigned result can be Bi-1=Ai-2,Bi=Ai,Bi+1=Ai+2.It is, of course, also possible to there is other assignment knots
Fruit, such as Bi-1=Ai-2,Bi=Ai+1,Bi+1=Ai+2Deng, those skilled in the art can designed, designed according to actual needs, this
Application is not specifically limited.
Relative to the scheme of the selected section sampled data progress assignment from assignment set, select whole sampled datas can
Guarantee that wave crest data and trough data are not missed, but calculation amount is larger, especially in the case where sampled data is more, effect
Rate is lower.Although and from assignment set selected section sampled data carry out assignment may exist omit some wave crest data and
A possibility that trough data, but calculation amount is relatively small, efficiency is higher.If those skilled in the art are to wave crest data and trough
The accuracy requirement of data is higher, then can choose the former scheme；If those skilled in the art are higher to computational efficiency requirement,
It then can choose the scheme of the latter.
It should be noted that every time can be identical to the principle of the roller-coaster array assignment, it is also possible to different, sheet
Application is also not specifically limited.
Step S104: after the roller-coaster array is assigned, if the corresponding sampled data of the object element meets
Wave crest condition, then be determined as wave crest data for the corresponding sampled data of the object element, and the wave crest data terminate for battery
Corresponding battery dump energy when charging or starting to discharge；If the corresponding sampled data of the object element meets trough condition,
The corresponding sampled data of the object element is then determined as trough data, the trough data are that battery terminates to discharge or start
Corresponding battery dump energy when charging.
In the present embodiment, the wave crest condition can be with are as follows: the corresponding sampled data of the object element is greater than the mistake
The corresponding sampled data of other elements in roller coaster array.The trough condition can be with are as follows: the corresponding hits of the object element
According to less than the corresponding sampled data of other elements in the roller-coaster array.
If the element that the roller-coaster array includes is odd number, then the object element can be the roller-coaster number
Central element in group；If the element that the roller-coaster array includes is even number, then the object element can be from centre
Two elements in optional one.For example, it is assumed that the roller-coaster array includes Bi-2,Bi-1,Bi,Bi+1,Bi+2, then the mesh
Marking element can be Bi.Assuming that the roller-coaster array includes Bi-2,Bi-1,Bi,Bi+1, then the object element can be Bi-1,
It may be Bi。
The present embodiment determines assignment set according to preset step-length by concentrating from the sampled data, and from the assignment collection
Sampled data is selected to be assigned to roller-coaster array in conjunction, after the roller-coaster array is assigned, if the object element pair
The sampled data answered meets wave crest condition, then the corresponding sampled data of the object element is determined as wave crest data；If described
The corresponding sampled data of object element meets trough condition, then the corresponding sampled data of the object element is determined as trough number
According to realize the determination to battery dump energy curve ripple peak data and trough data.
Scheme provided in this embodiment from the point of view of image, if the sampled data set of the SOC is formed a curve, example
Such as Fig. 2, then with the continuous variation of element in roller-coaster array, be seemingly just have a certain length " roller-coaster " according to
Certain speed (step-length) is along curve or retrogressing.Referring to fig. 4, when " headstock " (starting elemental) of " roller-coaster " is higher than other
" compartment " (arrow 1 in Fig. 4), then illustrate that " roller-coaster " " climbs " (charging)；When " headstock " of " roller-coaster " is lower than it
He " compartment " (arrow 4 in Fig. 4), then illustrate " roller-coaster " " descending " (electric discharge).When a certain section in the centre of " roller-coaster "
" compartment " (object element) is higher than other " compartments " (arrow 2 in Fig. 4), then explanation is somebody's turn to do " compartment " by the wave crest (knot of curve
Beam charges or starts to discharge)；When a certain section in the centre of " roller-coaster " " compartment " (object element) is lower than other " compartments " (in Fig. 4
Arrow 3), then explanation should " compartment " by curve trough (terminate electric discharge or start to charge).
Referring to Fig. 5, which is the data processing method about battery dump energy that provides through this embodiment to wave crest
The schematic diagram that data and trough data identify, in the figure, black dot indicates wave crest data or trough data.
The design in the present embodiment about the length of roller-coaster array is described below:
The length of the roller-coaster array, which refers to, crosses between the starting elemental and terminal element of the roller-coaster array
The number of sampled data is equivalent to the length of assignment set.For example, it is assumed that assignment set includes sampled data Ai-n+k,
Ai-n+1+k,...,Ai+k,Ai+1+k,...,Ai+m-1+k,Ai+m+k, and the starting elemental of roller-coaster array is assigned Ai-n+k, roller-coaster
The terminal element of array is assigned Ai+m+k, then the length of the roller-coaster array is Ai-n+kAnd Ai+m+kAnd therebetween
Sampled data number.
It is understood that being greater than or equal to two adjacent wave crest data if the length of roller-coaster array is too long
Length and/or two adjacent trough data length, then may result in roller-coaster array include two or two with
Upper ripple peak data, and/or, two or more trough data.If wave crest condition is the corresponding sampling of the object element
Data are greater than the corresponding sampled data of other elements in the roller-coaster array, then because every time can only be from two or more
Wave crest data in determine a wave crest data, remaining may be missed.Similarly, if trough condition is the target element
The corresponding sampled data of element is less than the corresponding sampled data of other elements in the roller-coaster array, then because every time can only be from two
A trough data are determined in a or more than two trough data, remaining may be missed.
The phenomenon that being missed in order to avoid wave crest data and/or trough data should meet the mistake in the present embodiment
The length of roller coaster array is less than the length between the length and/or two adjacent trough data between two adjacent wave crest data
The principle of degree.Length between described two adjacent wave crest data refers to the sampling crossed between two adjacent wave crest data
The number of data.Length between described two adjacent trough data refers to that crosses between two adjacent trough data adopts
The number of sample data.The length between length and two adjacent trough data between described two adjacent wave crest data is logical
Often it is empirical value, or can also be determined in real time according to the sampled data of actual acquisition.
The length of the roller-coaster array not only cannot be too long, nor can it is too short, otherwise will appear wave crest data
Or the phenomenon that trough data misrecognition.
Referring to Fig. 3, due to electricity fluctuation, electricity feedback etc., cause in battery dump energy curve occur " data are trembled
It is dynamic " the phenomenon that, that is, the sampled data got is inaccurate.Referring to Fig. 3, the curve in the figure in Far Left dashed circle is illustrated
Data dithering occurs to lead to the phenomenon that " bimodal " occur in wave crest.Curve in Fig. 3 in rightmost dashed circle illustrates data
Shake occurs in battery discharge procedure, leads to " burr " phenomenon occur.Certainly, " bimodal " phenomenon also belongs to " burr " phenomenon
It is a kind of.It is understood that the wave crest number that " burr " phenomenon occur may be missed if the length of roller-coaster array is too short
According to or trough data be identified as real wave crest data or real trough data.
In order to avoid the appearance of the phenomenon, the length of the roller coaster array can be according to the sampling period of the sampled data
And the most short charge and discharge time is determined, and is specifically as follows the ratio of most short charge and discharge time and sampling period.The sampling
Period refers to the time interval between sampling twice in succession, and unit is, for example, the second.The most short charge and discharge time includes most short fill
Electric time or most short discharge time.
Battery fast charge technology is currently existed, therefore the charge mode of battery can be divided into fast charge mode and trickle charge mould
Formula, trickle charge mode are general mode.Under the premise of with identical remaining capacity, using fast charge mode by the fully charged institute of battery
The time ratio needed utilizes the time required for trickle charge mode short.And the battery after the charging of fast charge mode is utilized, the speed of electric discharge
The speed spent also than discharging under trickle charge mode is fast.So the most short charging time can be battery from presetting minimum electricity
It is charged to shortest time empirical value required for highest electricity.Most short discharge time can be battery be put into from default highest electricity it is pre-
If shortest time empirical value required for minimum electricity.The empirical value can be basis and detect to the battery of same size
It obtains.
The case where most short charge and discharge time can also be used by a user according to battery dynamically determine, i.e., most short charging
Time is determined the charging behavior of battery according to user, and most short discharge time carries out the electric discharge behavior of battery according to user
It determines.Specifically, the most short charge and discharge time can be according to the corresponding sampling of wave crest data of the second preset time period battery
Time point and the corresponding sampling time point of trough data determine that the sampling time point the latest of second preset time period is not later than
The earliest sampling time point of first preset time period.That is, by the history wave crest data determined before and going through
History trough data obtain charging time and/or discharge time.It, can be with if having carried out multiple charging in the second preset time period
Most short charging time is obtained by the multiple charging time.For example, it is assumed that filled 5 electricity in the second preset time period, filled
The electric time is respectively 2 hours, 2.5 hours, 3 hours, 5 hours and 1.8 hours.The most short charging time can be described multiple
Shortest charging time in charging time, i.e., 1.8 hours.Alternatively, the most short charging time can also be in a certain range
Charging time mean value etc., if the range is 2 hours, the most short charging time was 1.9 ((2+1.8)/2) hours.Together
Available most short discharge time is managed, details are not described herein again.
By the length for the roller-coaster array that most short charge and discharge time and sampling period obtain, so that its element includes to be more than one
A possibility that a normal wave crest data or more than one normal trough data essentially 0 is not in omit normal wave crest data
Or the case where normal trough data.
After the wave crest data and trough data that battery dump energy in the first preset time period has been determined, answered in different
It, can be by analyzing it to obtain different analysis results under scene.Several application scenarios are described below as example.
1, the identification of user's charge and discharge behavior
Determine that the sampled data set corresponds to the total number of wave crest data and the wave crest data in the first preset range
Number, if the ratio of the number of the wave crest data in first preset range and the total number of the wave crest data is less than or waits
In first threshold, then the first prompt information is generated.
And/or
Determine that the sampled data set corresponds to the total number of trough data and the trough data in the second preset range
Number, if the ratio of the number of the trough data in second preset range and the total number of the trough data is less than or waits
In second threshold, then the second prompt information is generated.
If the sampled data is SOC, first preset range can for example be defined as equal to 100%, i.e., with
Family is fully charged to be advisable.If wave crest data are charge less electricity less than 100%.Since charge less electricity can shorten the service life of battery, if user
The number of charge less electricity is more, then needs to prompt user fully charged as far as possible.
If the sampled data is SOC, second preset range can for example be defined as [30%, 50%], i.e., will
The depth of discharge of battery maintains within the scope of 50%-70%.Since deep discharge can also shorten battery life, if be lower than
30%, i.e. depth of discharge is more higher than the number of 70% trough data, then needs to prompt user to try not deep discharge.
2, electricity block meter rate
After wave crest data and trough data have been determined, in conjunction with the corresponding sampling time point of the wave crest data and trough
The corresponding sampling time point of data determines charge time interval and the discharge time section of user.By statistics, if discovery have compared with
Multi-user charges in the first charge time interval, or the less user of discovery charges in the second charge time interval, then can lead to
It crosses and improves the corresponding electricity charge of the first charge time interval or reduce the mode of the corresponding electricity charge of the second charge time interval to reach
Balance the purpose of resource.
3, the layout of charging pile
After wave crest data have been determined, it can be obtained with the corresponding location data of combination ripple peak data (such as GPS data)
To the service condition of charging pile, if the charging pile of some position can increase the quantity of the position charging pile using frequently；If
The charging pile frequency of use of some position is lower, then can reduce the quantity of the position charging pile, with the layout to charging pile into
Row optimization.
Based on a kind of data processing method about battery dump energy that above embodiments provide, the embodiment of the present application is also
It provides a kind of data processing equipment about battery dump energy, its working principle is described in detail with reference to the accompanying drawing.
Embodiment two
Referring to Fig. 6, which is a kind of data processing equipment about battery dump energy that the embodiment of the present application two provides
Structural block diagram.
Data processing equipment provided in this embodiment about battery dump energy includes: acquiring unit 101, set determination
Unit 102, assignment unit 103 and electricity determination unit 104；
Wherein, the acquiring unit 101, for obtaining the sampled data of battery dump energy in the first preset time period
Collection；
The set determination unit 102 determines assignment set, institute according to preset step-length for concentrating from the sampled data
State in assignment set include continuous at least three sampled data of sampling time point, and in the assignment set sampled data
Number concentrates the number of sampled data less than the sampled data, and the step-length refers to that the assignment set that this is determined and last time determine
Assignment set between the number of sampled data jumped；
The assignment unit 103, for selecting sampled data to be assigned to roller-coaster array from the assignment set；It is described
Roller-coaster array includes starting elemental, terminal element and at least one neutral element, and each element respectively corresponds a sampling
Data, wherein the sampling time point of the corresponding sampled data of the starting elemental is first time point, and the terminal element is corresponding
The sampling time point of sampled data be the second time point, when the sampling of the corresponding sampled data of described at least one neutral element
Between point be third time point, the third time point is between the first time point and second time point；It is described at least
One neutral element includes object element；
The electricity determination unit 104, for after the roller-coaster array is assigned, if the object element is corresponding
Sampled data meet wave crest condition, then the corresponding sampled data of the object element is determined as wave crest data, the wave crest
Data are that battery terminates to charge or start corresponding battery dump energy when electric discharge；If the corresponding sampled data of the object element
Meet trough condition, then the corresponding sampled data of the object element is determined as trough data, the trough data are battery
Corresponding battery dump energy when terminating electric discharge or starting to charge.
The present embodiment determines assignment set according to preset step-length by concentrating from the sampled data, and from the assignment collection
Sampled data is selected to be assigned to roller-coaster array in conjunction, after the roller-coaster array is assigned, if the object element pair
The sampled data answered meets wave crest condition, then the corresponding sampled data of the object element is determined as wave crest data；If described
The corresponding sampled data of object element meets trough condition, then the corresponding sampled data of the object element is determined as trough number
According to realize the determination to battery dump energy curve ripple peak data and trough data.
Optionally, the wave crest condition are as follows: the corresponding sampled data of the object element is greater than in the roller-coaster array
The corresponding sampled data of other elements.
Optionally, the trough condition are as follows: the corresponding sampled data of the object element is less than in the roller-coaster array
The corresponding sampled data of other elements.
Optionally, the length of the roller-coaster array is less than the length between two adjacent wave crest data and/or two
Length between adjacent trough data.
Optionally, when the length of the roller-coaster array is according to the sampling period of the sampled data and most short charge and discharge
Between be determined, the most short charge and discharge time include most short charging time or most short discharge time.
Optionally, when the most short charge and discharge time corresponding according to the wave crest data of the second preset time period battery sampling
Between point corresponding with trough data sampling time point determination, the sampling time point the latest of second preset time period is not later than institute
State the earliest sampling time point of the first preset time period.
Optionally, described device further include:
First several determination unit and first information generation unit；And/or second several determination unit and the second information are given birth to
At unit；
Described first several determination unit, for determining that the sampled data set corresponds to the total number of wave crest data and
The number of wave crest data in one preset range；
The first information generation unit, if number and the wave for the wave crest data in first preset range
The ratio of the total number of peak data is less than or equal to first threshold, then generates the first prompt information；
Described second several determination unit, for determining that the sampled data set corresponds to the total number of trough data and
The number of trough data in two preset ranges；
Second information generating unit, if number and the wave for the trough data in second preset range
The ratio of the total number of paddy data is less than or equal to second threshold, then generates the second prompt information.
Optionally, described device further include:
First delete unit, for the sampled data set for getting battery dump energy in the first preset time period it
Afterwards, the sampled point for not getting SOC sampled data is deleted.
Optionally, described device further include:
Second delete unit, for the sampled data set for getting battery dump energy in the first preset time period it
Afterwards, retain one of sampled data in the continuously identical sampled data of multiple numerical value, delete remaining sampled data.
When introducing the element of various embodiments of the application, the article " one ", "one", " this " and " described " be intended to
Indicate one or more elements.Word "include", "comprise" and " having " are all inclusive and mean in addition to listing
Except element, there can also be other elements.
It should be noted that those of ordinary skill in the art will appreciate that realizing the whole in above method embodiment or portion
Split flow is relevant hardware can be instructed to complete by computer program, and the program can be stored in a computer
In read/write memory medium, the program is when being executed, it may include such as the process of above-mentioned each method embodiment.Wherein, the storage
Medium can be magnetic disk, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random
Access Memory, RAM) etc..
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for device reality
For applying example, since it is substantially similar to the method embodiment, so describing fairly simple, related place is referring to embodiment of the method
Part explanation.The apparatus embodiments described above are merely exemplary, wherein described be used as separate part description
Unit and module may or may not be physically separated.Furthermore it is also possible to select it according to the actual needs
In some or all of unit and module achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying
In the case where creative work, it can understand and implement.
The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as the protection scope of the application.
Claims (18)
1. a kind of data processing method about battery dump energy, which is characterized in that the described method includes:
Obtain the sampled data set of battery dump energy in the first preset time period；
It is concentrated from the sampled data and determines assignment set according to preset step-length, include that sampling time point connects in the assignment set
At least three continuous sampled datas, and the number of sampled data concentrates hits less than the sampled data in the assignment set
According to number, the step-length refers to the sampled data jumped between the assignment set that this is determined and the assignment set that last time determines
Number；
Sampled data is selected to be assigned to roller-coaster array from the assignment set；The roller-coaster array include starting elemental,
Terminal element and at least one neutral element, each element respectively correspond a sampled data, wherein the starting elemental pair
The sampling time point for the sampled data answered is first time point, and the sampling time point of the corresponding sampled data of the terminal element is
Second time point, the sampling time point of the corresponding sampled data of described at least one neutral element are third time point, described the
Three time points are between the first time point and second time point；At least one described neutral element includes target element
Element；
It, will if the corresponding sampled data of the object element meets wave crest condition after the roller-coaster array is assigned
The corresponding sampled data of the object element is determined as wave crest data, and the wave crest data are that battery terminates to charge or starts to discharge
When corresponding battery dump energy；If the corresponding sampled data of the object element meets trough condition, by the target element
The corresponding sampled data of element is determined as trough data, and the trough data are corresponding electricity when battery terminates to discharge or start to charge
Pond remaining capacity.
2. the method according to claim 1, wherein the wave crest condition are as follows: the object element is corresponding to be adopted
Sample data are greater than the corresponding sampled data of other elements in the roller-coaster array.
3. the method according to claim 1, wherein the trough condition are as follows: the object element is corresponding to be adopted
Sample data are less than the corresponding sampled data of other elements in the roller-coaster array.
4. according to the method in claim 2 or 3, which is characterized in that the length of the roller-coaster array is adjacent less than two
Wave crest data between length and/or two adjacent trough data between length.
5. according to the method described in claim 4, it is characterized in that, the length of the roller-coaster array is according to the sampled data
Sampling period and the most short charge and discharge time be determined, the most short charge and discharge time include most short charging time or most short
Discharge time.
6. according to the method described in claim 5, it is characterized in that, the most short charge and discharge time according to the second preset time period
The corresponding sampling time point of the corresponding sampling time point of wave crest data and trough data of battery is determining, second preset time
The sampling time point the latest of section is not later than the earliest sampling time point of first preset time period.
7. the method according to claim 1, wherein the method also includes:
Determine that the sampled data set corresponds to the number of the total number of wave crest data and the wave crest data in the first preset range；
If the ratio of the number of the wave crest data in first preset range and the total number of the wave crest data is less than or waits
In first threshold, then the first prompt information is generated；
And/or
Determine that the sampled data set corresponds to the number of the total number of trough data and the trough data in the second preset range；
If the ratio of the number of the trough data in second preset range and the total number of the trough data is less than or waits
In second threshold, then the second prompt information is generated.
8. the method according to claim 1, wherein getting battery dump energy in the first preset time period
Sampled data set after, the method also includes:
Delete the sampled point for not getting the sampled data of battery dump energy.
9. the method according to claim 1, wherein getting battery dump energy in the first preset time period
Sampled data set after, the method also includes:
Retain one of sampled data in the continuously identical sampled data of multiple numerical value, deletes remaining sampled data.
10. a kind of data processing equipment about battery dump energy, which is characterized in that described device includes: acquiring unit, collection
Close determination unit, assignment unit and electricity determination unit；
Wherein, the acquiring unit, for obtaining the sampled data set of battery dump energy in the first preset time period；
The set determination unit determines assignment set, the assignment according to preset step-length for concentrating from the sampled data
It include continuous at least three sampled data of sampling time point in set, and the number of sampled data is less than in the assignment set
The sampled data concentrates the number of sampled data, and the step-length refers to the assignment set that this is determined and the assignment that last time determines
The number for the sampled data jumped between set；
The assignment unit, for selecting sampled data to be assigned to roller-coaster array from the assignment set；The roller-coaster
Array includes starting elemental, terminal element and at least one neutral element, and each element respectively corresponds a sampled data,
In, the sampling time point of the corresponding sampled data of the starting elemental is first time point, the corresponding sampling of the terminal element
The sampling time point of data was the second time point, and the sampling time point of the corresponding sampled data of described at least one neutral element is
At third time point, the third time point is between the first time point and second time point；It is described at least one
Between element include object element；
The electricity determination unit, for after the roller-coaster array is assigned, if the corresponding sampling of the object element
Data meet wave crest condition, then the corresponding sampled data of the object element are determined as wave crest data, and the wave crest data are
Battery terminates to charge or start corresponding battery dump energy when electric discharge；If the corresponding sampled data of the object element meets wave
Paddy condition, then be determined as trough data for the corresponding sampled data of the object element, and the trough data are that battery terminates to put
Electricity or while starting to charge corresponding battery dump energy.
11. device according to claim 10, which is characterized in that the wave crest condition are as follows: the object element is corresponding
Sampled data is greater than the corresponding sampled data of other elements in the roller-coaster array.
12. device according to claim 10, which is characterized in that the trough condition are as follows: the object element is corresponding
Sampled data is less than the corresponding sampled data of other elements in the roller-coaster array.
13. device according to claim 11 or 12, which is characterized in that less than two phases of the length of the roller-coaster array
The length between length and/or two adjacent trough data between adjacent wave crest data.
14. device according to claim 13, which is characterized in that the length of the roller-coaster array is according to the hits
According to sampling period and most short charge and discharge time be determined, the most short charge and discharge time includes most short charging time or most
Short discharge time.
15. device according to claim 14, which is characterized in that the most short charge and discharge time is according to the second preset time
The corresponding sampling time point of wave crest data and the corresponding sampling time point of trough data of section battery determine, it is described second it is default when
Between the sampling time point the latest of section be not later than the earliest sampling time point of first preset time period.
16. device according to claim 10, which is characterized in that described device further include:
First several determination unit and first information generation unit；And/or second several determination unit and the second information generate list
Member；
Described first several determination unit, for determine the sampled data set correspond to the total number of wave crest data and first it is pre-
If the number of the wave crest data in range；
The first information generation unit, if number and the wave crest number for the wave crest data in first preset range
According to total number ratio be less than or equal to first threshold, then generate the first prompt information；
Described second several determination unit, for determine the sampled data set correspond to the total number of trough data and second it is pre-
If the number of the trough data in range；
Second information generating unit, if number and the trough number for the trough data in second preset range
According to total number ratio be less than or equal to second threshold, then generate the second prompt information.
17. device according to claim 10, which is characterized in that described device further include:
First deletes unit, for getting in the first preset time period after the sampled data set of battery dump energy, deletes
Except the sampled point for the sampled data for not getting battery dump energy.
18. device according to claim 10, which is characterized in that described device further include:
Second deletes unit, for getting in the first preset time period after the sampled data set of battery dump energy,
Continuously retain one of sampled data in the identical sampled data of multiple numerical value, deletes remaining sampled data.
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| JPH0480677A (en) * | 1990-07-21 | 1992-03-13 | Central Res Inst Of Electric Power Ind | Charging/discharging test system for multi-stage series secondary battery block |
| EP2352199B1 (en) * | 2008-11-21 | 2015-08-26 | Honda Motor Co., Ltd. | Charge control device |
| US8886479B2 (en) * | 2009-09-03 | 2014-11-11 | Toyota Jidosha Kabushiki Kaisha | Charge state detecting device for battery pack and method for detecting charge state |
| US9071068B2 (en) * | 2010-06-30 | 2015-06-30 | Panasonic Intellectual Property Management Co., Ltd. | Charge/discharge control apparatus |
| WO2012049965A1 (en) * | 2010-10-15 | 2012-04-19 | 三洋電機株式会社 | Power management system |
| US9052368B2 (en) * | 2010-12-15 | 2015-06-09 | Maxim Integrated Products, Inc. | Negative peak voltage detection for enhanced FuelGauge empty voltage prediction |
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| US10690725B2 (en) * | 2012-03-29 | 2020-06-23 | Atieva, Inc. | Battery state-of-charge estimation |
| JP2014045626A (en) * | 2012-08-28 | 2014-03-13 | Sanyo Electric Co Ltd | Charging controller |
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