CN108333526A

CN108333526A - Battery capacity check method and device

Info

Publication number: CN108333526A
Application number: CN201810090333.6A
Authority: CN
Inventors: 马东辉; 柳志民
Original assignee: Beijing CHJ Information Technology Co Ltd
Current assignee: Beijing CHJ Automobile Technology Co Ltd
Priority date: 2018-01-30
Filing date: 2018-01-30
Publication date: 2018-07-27
Anticipated expiration: 2038-01-30
Also published as: CN108333526B

Abstract

The invention discloses a kind of battery capacity check method and devices, are related to battery detecting technical field, and main purpose is to reduce battery capacity detection duration, improves detection efficiency.The method of the present invention includes：Obtain the first open-circuit voltage and the first temperature of battery；According to first open-circuit voltage and first temperature, the charged value of the battery is determined by state-of-charge matrix, is denoted as the first charged value；After to the battery charge or discharge, the second open-circuit voltage and second temperature of the battery are obtained；According to second open-circuit voltage and the second temperature, the charged value of battery after charge or discharge is determined by the state-of-charge matrix, is denoted as the second charged value；Determine that the total capacity of the battery, the variation electricity of the battery are the electricity that the battery changes in discharge process or in charging process according to the variation electricity of the described first charged value, the second charged value and the battery.The present invention is for being detected the capacity of battery.

Description

Battery capacity check method and device

Technical field

Embodiment of the disclosure is related to battery detecting technical field more particularly to a kind of battery capacity check method and dress It sets.

Background technology

With flourishing for new-energy automobile, the use of electric vehicle and hybrid vehicle also gradually increases.In electricity In motor-car, power supply device of the battery system as its power shows particularly important, especially electric vehicle for electric vehicle In power battery capacity, the course continuation mileage of the electric vehicle has been largely fixed, accordingly, with respect to the inspection of battery capacity Survey is increasingly paid attention to by automobile batteries manufacturer.

Currently, in electric vehicle field, after production line produces power battery, the battery to the power battery is needed Capacity is detected.In general, when being detected to battery capacity, it is generally used full be full of and puts formula detection, i.e., fill battery Electricity is discharged to minimum voltage to highest blanking voltage, then with current constant mode, and is determined currently according to the electricity in discharge process The total capacity of battery.However, in practical applications, since the capacity of the power battery of electric vehicle is larger, being charged and discharged It needs to consume the more time in the process, especially when needing to be detected more battery, can cause to detect battery appearance The time loss of amount is larger, influences the detection efficiency of battery capacity.

Invention content

In view of the above problems, a kind of battery capacity check method of embodiment of the disclosure offer and device, main purpose exist In the time loss for reducing battery capacity detection process, the detection efficiency of battery capacity is improved.

In order to solve the above technical problems, in a first aspect, embodiment of the disclosure provides a kind of battery capacity check method, This method includes：

Obtain the first open-circuit voltage and the first temperature of battery；

According to first open-circuit voltage and first temperature, the charged of the battery is determined by state-of-charge matrix Value is denoted as the first charged value, and the charged value is capacity parameter when weighing battery charge state, and the state-of-charge matrix is Characterize the matrix of correspondence between the temperature of battery, open-circuit voltage and charged value；

After to the battery charge or discharge, the second open-circuit voltage and second temperature of the battery are obtained；

According to second open-circuit voltage and the second temperature, charge or discharge are determined by the state-of-charge matrix The charged value of battery afterwards is denoted as the second charged value；

The battery is determined according to the variation electricity of the described first charged value, the second charged value and the battery Total capacity, the variation electricity of the battery are the electricity that the battery changes in discharge process or in charging process.

Optionally, before first open-circuit voltage for obtaining battery and the first temperature, the method further includes：

Obtain sample battery at different temperatures, the corresponding open-circuit voltage of the charged value of difference；

According to the correspondence between the charged value, open-circuit voltage and temperature, state-of-charge matrix, the lotus are established Electricity condition matrix includes open-circuit voltage and its corresponding charged value under different temperatures.

Optionally, the acquisition sample battery at different temperatures, the corresponding open-circuit voltage of different charged value, including：

When being placed in sample battery under multiple and different preset temperatures, control charge/discharge test device is to the sample battery Multiple charge or discharge operation is carried out respectively；

Obtain the sample battery charge or discharge under different preset temperatures every time respectively by battery management system Open-circuit voltage afterwards and corresponding charged value.

Optionally, in the variation electricity according to the described first charged value, the second charged value and the battery After the total capacity for determining the battery, the method further includes：

When the total capacity of the battery is greater than or equal to default rated capacity, determine that the battery is qualified；

Optionally, the variation electricity according to the described first charged value, the second charged value and the battery is true The total capacity of the fixed battery, including：

Described first charged value and the second charged value are carried out asking poor calculating, obtain charged difference；

The variation electricity and the charged difference ask and discuss calculation, obtains the total capacity of the battery.

Optionally, in the variation electricity according to the described first charged value, the second charged value and the battery Before the total capacity for determining the battery, the method further includes：

During the battery charge or discharge, the variation electricity of the battery is obtained.

Optionally, described during the battery charge or discharge, the variation electricity for obtaining the battery includes：

During the battery charge or discharge, the charge or discharge electric current of the battery is obtained；

Integral and calculating is carried out to the charge or discharge electric current, obtains the variation electricity of the battery.

Optionally, the control producing line charge/discharge test device, with preset charge or discharge rate to the battery into Row charge or discharge operate, including：

Producing line charge/discharge test device is controlled, the battery is carried out extremely by charge or discharge with preset charged or discharge rate The voltage of the battery reaches target voltage.

Optionally, before second open-circuit voltage for obtaining the battery and second temperature, the method further includes：

After the battery charge or discharge, control battery standing equipment is so as to by the battery standing preset time；

Second open-circuit voltage and second temperature for obtaining the battery, including：

Obtain the second open-circuit voltage and second temperature of the battery after standing preset time.

Second aspect, embodiment of the disclosure additionally provide a kind of battery capacity detection device, which includes：

First acquisition unit, the first open-circuit voltage for obtaining battery and the first temperature；

First determination unit, the first open-circuit voltage for being obtained according to the first acquisition unit and first temperature Degree, the charged value of the battery is determined by state-of-charge matrix, is denoted as the first charged value, and the charged value is measurement battery lotus Capacity parameter when electricity condition, the state-of-charge matrix are corresponding between the temperature for characterizing battery, open-circuit voltage and charged value The matrix of relationship；

Second acquisition unit, for after to the battery charge or discharge, obtaining the second open-circuit voltage of the battery And second temperature；

Second determination unit, the second open-circuit voltage for being obtained according to the second acquisition unit and second temperature Degree, the charged value of battery after charge or discharge is determined by the state-of-charge matrix, is denoted as the second charged value；

Third determination unit, the first charged value, second determination for being obtained according to first determination unit are single The variation electricity of the second charged value and the battery that member determines determines the total capacity of the battery, the variation electricity of the battery Amount is the electricity that the battery changes in discharge process or in charging process.

Optionally, described device further includes：

Third acquiring unit, for obtaining sample battery at different temperatures, the corresponding open-circuit voltage of the charged value of difference；

Unit is established, between charged value, open-circuit voltage and the temperature for being obtained according to the third acquiring unit Correspondence, establishes state-of-charge matrix, and the state-of-charge matrix includes under different temperatures, open-circuit voltage and its corresponding Charged value.

Optionally, the third acquiring unit includes：

Acquisition module, for obtaining the sample battery respectively by battery management system every time in different preset temperatures Under open-circuit voltage and corresponding charged value.

Optionally, the third determination unit, including：

First computing module obtains lotus for carrying out asking poor calculating to the described first charged value and the second charged value Electric difference；

Second computing module, charged difference for variation electricity and first computing module to be calculated into Row, which is asked, discusses calculation, obtains the total capacity of the battery.

Optionally, described device further includes：

4th acquiring unit, for during the battery charge or discharge, obtaining the variation electricity of the battery.

Optionally, the 4th acquiring unit includes：

Acquisition module, for during the battery charge or discharge, obtaining the charge or discharge electric current of the battery；

Computing module, the charge or discharge electric current for being obtained to the acquisition module carry out integral and calculating, obtain described The variation electricity of battery.

Optionally, described device further includes：

The second acquisition unit is specifically used for obtaining the second open-circuit voltage of battery after standing preset time and the Two temperature.

To achieve the goals above, the third aspect according to an embodiment of the present disclosure provides a kind of storage medium, described Storage medium includes the program of storage, wherein equipment where controlling the storage medium when described program is run executes above-mentioned The battery capacity check method.

To achieve the goals above, fourth aspect according to an embodiment of the present disclosure provides a kind of electronic equipment, described Electronic equipment includes one or more processors and memory, and wherein memory is for storing one or more programs, when described One or more programs are executed by one or more of processors so that one or more of to realize electricity as described above Pool capacity quantity measuring method.

By battery capacity check method and device that above-mentioned technical proposal, embodiment of the disclosure provide, for existing For technology when being detected to battery capacity, time loss is larger, the problem of influencing detection efficiency.Embodiment of the disclosure is logical It crosses first, after the first open-circuit voltage and the first temperature that obtain battery, according to first open-circuit voltage and first temperature It spends, and determines the first charged value of the battery by state-of-charge matrix；Then, it is obtained after to the battery charge or discharge The second open-circuit voltage and second temperature of the battery are taken, and according to second open-circuit voltage and the second temperature, is passed through The state-of-charge matrix determines the second charged value of battery after charge or discharge；Finally according to described first it is charged value, it is described The variation electricity of second charged value and the battery determines the total capacity of the battery, and then solves expiring for the prior art and fill It completely puts formula battery capacity and detects the problem excessive to time loss.In embodiment of the disclosure, by the first open-circuit voltage and First temperature determines the first charged value of battery in state-of-charge matrix, and by the second open-circuit voltage and second temperature, The second charged value of battery is determined in state-of-charge matrix, it is contemplated that influence of the temperature to battery charge value, to improve The accuracy of first, second charged value, and then Data safeguard is provided for the calculating of subsequent battery total capacity, it carries on the whole The high accuracy of battery capacity testing result.Meanwhile passing through the variation electricity of the first charged value, the second charged value and battery The total capacity of battery is calculated, avoids full full of the charging process put in the battery capacity detection process of formula, and is reduced Time loss in electric discharge or charging process, can then reduce the time needed for battery capacity detection process, carry on the whole The high detection efficiency of battery capacity.

Above description is only the general introduction of embodiment of the disclosure technical solution, in order to better understand the reality of the disclosure Apply the technological means of example, and can be implemented in accordance with the contents of the specification, and in order to allow the above-mentioned of embodiment of the disclosure and Other objects, features and advantages can be clearer and more comprehensible, below the special specific implementation mode for lifting embodiment of the disclosure.

Description of the drawings

By reading the detailed description of hereafter preferred embodiment, various other advantages and benefit are common for this field Technical staff will become clear.Attached drawing only for the purpose of illustrating preferred embodiments, and is not considered as to the disclosure Embodiment limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings：

Fig. 1 shows a kind of battery capacity check method flow chart that embodiment of the disclosure provides；

Fig. 2 shows another battery capacity check method flow charts that embodiment of the disclosure provides；

Fig. 3 shows a kind of composition frame chart for battery capacity detection device that embodiment of the disclosure provides；

Fig. 4 shows the composition frame chart for another battery capacity detection device that embodiment of the disclosure provides.

Specific implementation mode

The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although showing the disclosure in attached drawing Exemplary embodiment, it being understood, however, that may be realized in various forms embodiment of the disclosure without that should be illustrated here Embodiment limited.On the contrary, the embodiment that these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and energy It is enough that the range of embodiment of the disclosure is completely communicated to those skilled in the art.

In order to improve the accuracy of battery capacity detection, embodiment of the disclosure provides a kind of battery capacity detection side Method is applied to client, as shown in Figure 1, this method includes：

101, the first open-circuit voltage and the first temperature of battery are obtained.

Under normal conditions, when battery is after production line produces, battery currently can all pass through the test in some performances, And in the process, battery more or less can all have certain electricity, therefore, in embodiment of the disclosure, obtain battery First open-circuit voltage and the first temperature can be acquired after battery carries out correlated performance test, it is of course also possible at it He obtains the time, does not do specific restriction herein.Meanwhile first open-circuit voltage for obtaining battery can lead in this step It crosses any number of harvester in the prior art to be obtained, such as cell managing device.Wherein, institute in embodiment of the disclosure The first open-circuit voltage stated can be understood as the voltage value at battery battery both ends under unloaded open-circuit condition.

In addition, in embodiment of the disclosure, first temperature can be understood as the current surface temperature of battery.Due to In the course of work of battery, internal battery capacity is easy to be influenced by the extraneous or temperature of itself, for example, working as ambient temperature When relatively low or when cell during discharge generates larger heat, the battery capacity of its own can all be impacted.In this public affairs In the embodiment opened, effect of the temperature to battery capacity is exactly considered, therefore when obtaining the first open-circuit voltage of battery, also The surface temperature of battery need to be obtained, wherein the acquisition modes of first temperature can be adopted by external thermal sensors Collection, can also be acquired, certainly, specific acquisition mode and collector by battery system managing device in the prior art Selection can be selected according to actual needs, do not do specific restriction herein.

102, according to first open-circuit voltage and first temperature, the battery is determined by state-of-charge matrix Charged value is denoted as the first charged value.

Wherein, capacity when the charged value described in embodiment of the disclosure can be understood as weighing battery charge state is joined Number, the state-of-charge matrix are then the matrix of correspondence between the characterization temperature of battery, open-circuit voltage and charged value.

Specifically, in field of batteries, there are a variety of different parameters to characterize the state of battery, one of them is exactly this State-of-charge described in step, i.e. SOC (State of Charge, state-of-charge, abbreviation SOC), are also remaining capacity, its generation Table is ratio of the battery using residual capacity and the capacity of its fully charged state after shelving for a period of time or for a long time, usually It is indicated with percentage.The value of SOC, i.e. charged value described in embodiment of the disclosure, in the range of 0~1, the table as SOC=0 Show that battery discharge is complete, indicates that battery is completely filled with as SOC=1.

Due to including the relationship between different charged values and open-circuit voltage under different temperatures in state-of-charge matrix, therefore After getting the first open-circuit voltage and the first temperature of battery through step 101, it can be searched by the state-of-charge matrix At the first temperature, the charged value corresponding to the first open-circuit voltage, and by the charged value of the first open-circuit voltage of correspondence found It is denoted as the first charged value.Under normal conditions, after battery opens product line group dress, charged value, i.e. SOC value existing for inside Typically about 30% or so, certainly according to the difference of actual conditions, the internal charged value of reality may also be more than or less than 30%, here, specific restriction is not done to the concrete numerical value of the identified first charged value, but according to actual conditions come really It is fixed.

103, after to the battery charge or discharge, the second open-circuit voltage and second temperature of the battery are obtained.

It should be noted that since the method described in embodiment of the disclosure is imitated to improve the detection of battery capacity Rate reduces time loss.Therefore, in embodiment of the disclosure, the process to the battery discharge or charging can basis Actual conditions need to select the time of discharge process or the time of charging process.Specifically, when can preset a charge and discharge Between, and the second open-circuit voltage and second temperature for obtaining battery are executed after charge or discharge.

In addition, in this step in the description of second open-circuit voltage and abovementioned steps 101 the first open-circuit voltage Description it is consistent, only difference is that, the second current open-circuit voltage is acquired after battery has carried out charge or discharge Open-circuit voltage.And the description also description phase with 101 the first temperature in abovementioned steps of the second temperature described in this step Together, it is surface temperature of the battery after charge or discharge operation difference lies in the second temperature.Specifically, for the second open circuit electricity The acquisition mode of pressure and the acquisition modes of second temperature, with the first open-circuit voltage of abovementioned steps and the acquisition modes of the first temperature Identical, this is no longer going to repeat them.

104, according to second open-circuit voltage and the second temperature, after determining electric discharge by the state-of-charge matrix The charged value of battery is denoted as the second charged value.

According to the description in abovementioned steps 102, state-of-charge matrix includes under different temperatures, and different open-circuit voltages correspond to Charged value.It therefore, can be according to state-of-charge after getting second open-circuit voltage and second temperature in step 103 Matrix is found out under second temperature, the charged value corresponding to the second open-circuit voltage, i.e., the second charged value.

105, the electricity is determined according to the variation electricity of the described first charged value, the second charged value and the battery The total capacity in pond

Wherein, the variation electricity of the battery described in this step is that the battery changes in discharge process or in charging process Electricity.In embodiment of the disclosure, variation electricity is specifically as follows the consumption electricity of the battery corresponding to discharge process, or Person is the increase electricity of the battery corresponding to charging process.Concrete condition, can be according to the abovementioned steps 101-104 of actual selection Middle selection is charging process or discharge process to determine.

After charged value before and after abovementioned steps 101-104 determines battery discharge, i.e., the first charged value and the second lotus Electricity value, it may be determined that after electric discharge or charging, the variation of the charged value of battery, since the variation of battery charge value can be from side The relationship between battery change electricity and total capacity is embodied, it therefore, can be according to the first charged value and the second charged value come really Determine the charged value variation of battery, then according to the relationship of its charged value variation and battery change electricity, determines the total of the battery Capacity.

The battery capacity check method that embodiment of the disclosure provides, the prior art is detected to battery capacity When, time loss is larger, the problem of influencing detection efficiency.Compared with the prior art, embodiment of the disclosure passes through the first open circuit Voltage and the first temperature determine the first charged value of battery in state-of-charge matrix, and pass through the second open-circuit voltage and the Two temperature determine the second charged value of battery in state-of-charge matrix, it is contemplated that influence of the temperature to battery charge value, from And the accuracy of the first, second charged value is improved, and then Data safeguard is provided for the calculating of subsequent battery total capacity, it is whole The accuracy of battery capacity testing result is improved on body.Meanwhile passing through the change of the first charged value, the second charged value and battery Change electricity to calculate the total capacity of battery, avoids the full charging process for being full of and putting in the battery capacity detection process of formula, and Reduce the time loss in electric discharge or charging process, can then reduce on the whole needed for battery capacity detection process when Between, improve the detection efficiency of battery capacity.

Further, as the refinement and extension to embodiment illustrated in fig. 1, embodiment of the disclosure additionally provides another kind Battery capacity check method, as shown in Fig. 2, its specific steps includes：

201, sample battery is obtained at different temperatures, the corresponding open-circuit voltage of the charged value of difference.

In embodiment of the disclosure, the associated descriptions such as the charged value, temperature, open-circuit voltage all in previous embodiment Description it is consistent, details are not described herein.

Since the detection method of the battery capacity described in embodiment of the disclosure is carried out based on state-of-charge matrix, Therefore, in embodiment of the disclosure, it is necessary first to by choosing with sample battery, according under its different temperatures, different lotuses Relationship between electric value and open-circuit voltage builds state-of-charge matrix.It needs to carry out not from sample battery in this step as a result, Under synthermal, test the relationship between its charged value and open-circuit voltage, and obtain temperature, charged value and open-circuit voltage three it Between relationship.It should be noted that the battery capacity check method described in embodiment of the disclosure, can be based on discharge process Or charging process two kinds of situations carry out, specifically, selected charging process and discharge process are chosen, it can be according to reality Border situation is chosen, and does not do specific restriction herein.In embodiment of the disclosure, for ease of description, main base The battery capacity check method described in the embodiment of the present disclosure is described in the discharge process of battery.

The mode of temperature, charged value and open-circuit voltage may include in this step acquisition sample battery：First, by sample This battery is placed under multiple and different preset temperatures, is then carried out respectively to the sample battery by charge/discharge test device more Secondary discharge operation；Wherein, in carrying out discharge process, the sample battery is obtained respectively by battery management system every time not Open-circuit voltage after discharging under same preset temperature and corresponding charged value, for example, it is 25 that can choose battery in Current Temperatures DEG C when, multiple discharge operation is carried out to battery, and obtain the open-circuit voltage and correspondence of the battery after each discharge operation Charged value.It can will realize the sample battery at different temperatures in this way, different open-circuit voltages and its corresponding charged value Acquisition.In this step, sample battery can be respectively placed under different temperatures by artificial mode, and by manual control Charge/discharge test device to carry out multiple charge or discharge operation to battery, it is of course also possible to be set using preset battery control It is standby, by preset control command, battery is placed at different temperature, and charge/discharge test device is controlled to carry out battery Charge and discharge is electrically operated.Specifically, actual conditions can be subject to.

In addition, in this step, it can also be in the process of the temperature, charged value and open-circuit voltage that obtain the sample battery In, due to needing to carry out carrying out discharge operation under multiple different temperatures to sample battery, since battery is after discharge every time The numerical value of one floating when will produce its open-circuit voltage in heat and a period of time after discharge, in order to ensure acquisition The accuracy of the numerical value of temperature, charged value and open-circuit voltage, can stand a period of time after each discharge, and it is small such as to stand 0.5 When, wait for that its temperature is restored, open-circuit voltage obtains these three current parameters of its sample battery again after stablizing.Wherein, to charging It when battery after discharging afterwards is stood, can be carried out by controlling preset task equipment, as battery management is equipped to the electricity Pond carries out standing operation, can also be by manually being stood to the battery, specifically can be according to reality to wait for that its temperature is stablized Situation is chosen.Certainly, when battery is when after discharge operation, determining that the temperature change of current battery is smaller, then may be used To be not necessarily to stand battery, to improve the detection speed of measurement capacity.In addition, in method described in this step, in order to It is further to ensure acquired parameter, i.e. temperature, charged value, the accuracy of open-circuit voltage three, multiple samples can also be chosen This battery executes the method described in this step, and multiple samples are averaged, with ensure acquired sample battery temperature, The accuracy of charged value and open-circuit voltage, to provide Data safeguard for the accuracy of subsequent state-of-charge matrix.

202, according to the correspondence between the charged value, open-circuit voltage and temperature, state-of-charge matrix is established.

In embodiment of the disclosure, step 102 in the state-of-charge matrix, the i.e. description of SOC and previous embodiment In description it is consistent.Based in state-of-charge matrix include different temperatures under, open-circuit voltage and its corresponding charged value, in this public affairs When abovementioned steps 201 are by sample battery progress discharge test, having got the pass between three parameters in the embodiment opened After system, can in the case where this step summarizes based on different temperatures, the correspondence of charged value and open-circuit voltage establish one based on temperature, The state-of-charge matrix of open-circuit voltage.Specifically can be as shown in table 1, it is specific as follows：

Table 1

It should be noted that in embodiment of the disclosure, temperature, charged value in the state-of-charge matrix and right The open-circuit voltage answered is merely illustrative, does not do specific restriction herein.Also, in embodiment of the disclosure between the stepping of charged value Every, choose temperature gap do not do specific restriction yet, can determine according to actual needs, for example, if desired more accurate Nuclear power state matrix, the specific sample temperature of state-of-charge matrix shown in above table in this step, the charged value of sampling Quantity and stepping interval can extract more quantity and smaller stepping difference as needed, wherein described in this step Stepping difference can be understood as between temperature or charged value per the difference of numerical value between stepping twice.

State-of-charge matrix is established by the correspondence between charged value, open-circuit voltage and temperature as a result, by Influence in considering temperature to battery between open-circuit voltage, charged value, it can be ensured that the state-of-charge matrix established Accuracy, and then can improve based on the state-of-charge matrix battery capacity detection testing result accuracy.

203, the first open-circuit voltage and the first temperature of battery are obtained.

In step, when needing the capacity to battery to be detected, it can be obtained first according to the method described in this step The open-circuit voltage of present battery and the surface temperature of battery are taken, is denoted as the first open-circuit voltage and the first temperature respectively.Specifically, It, can be according to the electricity dedicated for detection battery during the first open-circuit voltage and the first temperature to the battery obtain Pond manages system to be obtained.It is of course also possible to select other modes to be obtained, specific restriction is not done herein, It can be chosen in detection device according to actual needs from the prior art.

204, according to first open-circuit voltage and first temperature, the battery is determined by state-of-charge matrix Charged value is denoted as the first charged value.

In embodiment of the disclosure, the battery capacity detection mode is carried out based on state-of-charge matrix, because This can be by being built after abovementioned steps 203 have got the first temperature and the first open-circuit voltage of battery in step 202 Vertical state-of-charge matrix corresponds to the charged value of first temperature and the first open-circuit voltage to inquire, and is denoted as the first charged value, Thus the charged value of the reality before being discharged of present battery is determined.

In this step, by acquired the first open-circuit voltage and the first temperature, electricity is determined in state-of-charge matrix The first charged value in pond, can realize the determination function to the charged value before present battery discharge, also, by open-circuit voltage, Temperature determines charged value, it is contemplated that influence of the temperature to battery open circuit voltage and charged value, to avoid because not considering temperature Degree causes to determine the problem that charged value accuracy is relatively low, to provide the guarantor in data for subsequent battery capacity detection process Barrier, and then ensure that the accuracy of battery capacity detection on the whole.

205, control producing line charge/discharge test device, with preset charge or discharge rate to the battery carry out charging or Discharge operation.

Wherein, the charge or discharge rate described in this step is a kind of charging for characterizing when battery charge or discharge Electric current or discharge current account for the ratio of battery rated current.

Be determined charged value of the battery before electric discharge in abovementioned steps 204, i.e., it, can be to the battery after the first charged value Discharge operation is carried out, it specifically can be by controlling the producing line charging/discharging apparatus on production line for manufacturing battery, so as to the electricity Pond carries out discharge operation.Because there is discharge rate in discharge process in battery, carry out electric discharge behaviour in this step Before work, a discharge rate can also be preset, and discharge operation is carried out to battery with the preset discharge rate.It is general next It says, when discharging battery, one times of discharge rate, i.e. one speed of battery rated current volume may be used in discharge rate Degree, it is of course also possible to which the multiplying power for selecting other different according to actual needs is discharged to determine discharge rate, or without controlling In the case of precision, discharge rate can also be not provided with to carry out discharge operation, herein for the mode of discharge process and electric discharge The selection of rate can be chosen according to actual needs.

In addition, in this step, it can also be during battery carries out discharge operation, to being disappeared in battery discharge procedure The variation electricity of consumption is obtained, i.e. the consumption electricity of battery.Specifically, the consumption electricity of battery discharge procedure can pass through electricity Discharge current during tank discharge, it is integrated to be calculated, it can also specifically be wrapped in the discharge process described in this step It includes：During the battery charge or discharge, the discharge current of the battery is obtained；Integrating meter is carried out to the discharge current It calculates, obtains the variation electricity of the battery.Wherein, the mode for obtaining discharge current can be by acquiring producing line charging/discharging apparatus stream The current system of warp obtains, and can also be acquired by other detection devices, specifically, not limiting herein, with reality Subject to the situation of border.

Further, in order to make the review time of the battery capacity check method described in embodiment of the disclosure standardize, It, can also be by, to a preset voltage value, i.e. target voltage, being such as discharged to voltage to the battery discharge in discharge process 2.8V can preferably control the time of discharge process to ensure when being detected to battery capacity.Therefore, in this step right When the battery carries out discharge operation, can be specially：Producing line charge/discharge test device is controlled, it will be described with default discharge rate The voltage that battery be discharged to the battery reaches target voltage.In addition, in method described in the disclosure, passing through control Producing line charge/discharge test device can be with when carrying out charge or discharge operation to the battery with preset charge or discharge rate Have and manually producing line charging/discharging apparatus is charged the battery or discharge operation, control command can also be loaded with by setting Device is sent to producing line charging/discharging apparatus through port using preset control command, is realized in an automated manner to battery Charge and discharge is electrically operated.Here, for the mode of operation of electric discharge or charging process, can voluntarily be chosen by actual conditions, herein not Do specific restriction.

As a result, by carrying out discharge operation to battery with preset discharge rate, the speed of electric discharge can be carried out effective Control, and then improve the time loss during battery detecting on the whole.Meanwhile by battery discharge to target voltage, energy It is enough that further discharge process is controlled, and then make discharge time standardization, controllableization, and then improve battery detecting process Time loss controllability.In addition, by obtaining the current value in battery discharge procedure, and integral behaviour is carried out to the current value Make, obtain the variation electricity in battery discharge procedure, more can accurately obtain the electricity that battery consumes in discharge process, For the detection of subsequent battery capacity, data basis is established.

206, after the battery charge or discharge, control battery standing equipment so as to the battery standing is preset when Between.

According to the principle and construction process of battery, during battery is discharged and is charged, actually chemical energy Conversion between electric energy, due to there are problems that generating thermal energy in transfer process, battery is after being discharged, certainly Body will appear the phenomenon that fever, and battery is in the case of temperature difference, and the charged value and open-circuit voltage of itself are also to float to become Change, therefore, in order to ensure the accuracy of subsequent detection result can control battery after carrying out discharge operation to battery Stationary equipment stands the battery, and subsequent operation is carried out again after its open-circuit voltage stabilization.Wherein, it is stood in this step Preset time, can uniformly be set as needed, when can also be according to nominal capacity and the electric discharge of each different batteries Between make specific setting, under normal circumstances, preset time could be provided as 30 minutes when the standing of the battery, here, for institute It states preset time and does not do specific restriction, can choose according to actual needs, meanwhile, battery described in embodiment of the disclosure Stationary equipment can be able to be specifically battery management unit by choosing in the prior art, can also be that other can be used for pair The equipment that battery is stood, specific choose can be based on actual demand progress, and work is specific herein limits, but institute The stationary equipment of the battery of selection is wanted to be controlled according to the method described in this step.

It should be noted that in battery capacity check method described in embodiment of the disclosure, for described in this step Volume stands process, can be chosen according to actual needs, after battery is through discharge process, determine the temperature change of battery compared with It is small or when not changing substantially, then it can be but straight after executing step 205, without carrying out the standing operation described in this step It connects and executes step 207, in addition, in this step, in the process for battery stand operation, can be carried out by manual type quiet Operation is set, the mode of automation control can also be selected, by preset control port, the mode of pre-set commands is taken to control electricity Pond stationary equipment carries out standing operation to battery, and specific mode of operation can be chosen according to actual conditions.

207, after to the battery charge or discharge, the second open-circuit voltage and second temperature of the battery are obtained.

Wherein, in embodiment of the disclosure, second open-circuit voltage, second temperature and acquisition modes with it is aforementioned Description in step 103 is consistent, and this will not be repeated here.But it should be recognized that battery capacity described in embodiment of the disclosure is examined After performing the operation stood to battery in step 206, then this step can be specifically survey method：When battery it is quiet After having set preset time, the second open-circuit voltage and second temperature of battery after standing are obtained.

208, according to second open-circuit voltage and the second temperature, by the state-of-charge matrix determine charging or The charged value of battery after electric discharge, is denoted as the second charged value.

After abovementioned steps 207 get the second open-circuit voltage and the second temperature of the battery, aforementioned step can be passed through The charged value that corresponding second open circuit and second temperature are determined in the rapid 202 state-of-charge matrixes established, i.e., after battery discharge Charged value is denoted as the second charged value.

Specifically, in this step, battery relationship system can be passed through by obtaining the mode of the second open-circuit voltage and second temperature System is obtained, wherein in embodiment of the disclosure the mode for the temperature for obtaining open-circuit voltage, battery can according to this Battery management system is obtained, and certainly, can also be chosen according to actual conditions by controlling other in actual mechanical process Harvester in the prior art operates obtain accordingly.

As a result, in this step, by determining that battery is put to the second open-circuit voltage, second temperature and state-of-charge matrix Charged value after electricity, the accuracy of the second charged value after the battery discharge that can ensure, and then electricity can be improved on the whole The accuracy of tankage testing result.

209, the electricity is determined according to the variation electricity of the described first charged value, the second charged value and the battery The total capacity in pond.

Due to having obtained variation electricity of the battery in discharge process by the integral and calculating of electric current in abovementioned steps 205 Amount, therefore, variation electricity that in this step can be according to battery in two front and back charged values of electric discharge and discharge process Determine the total capacity of battery.Parameter index due to charged value as battery capacity ratio, pass through charge value energy twice Enough determine that the capacity ratio that battery consumes in discharge process can according to the variation electricity of battery and the capacity ratio of consumption Calculate the total capacity of battery.

Calculating the detailed process of the total capacity of the battery in this step as a result, can be：First to first lotus Electric value and the second charged value carry out asking poor calculating, obtain charged difference, battery of the charge difference i.e. described in this step The capacity ratio of consumption；Then, the variation electricity and the charged difference ask and discuss calculation, then obtain battery reality Total electricity, i.e., the total capacity of battery wherein, in embodiment of the disclosure, since performed battery capacity check method is It is realized based on discharge process, therefore, volume variation electricity is actually battery in discharge process in this step Consume electricity.As a result, by the corresponding capacity consumption ratio of state-of-charge in battery discharge procedure, and variation electricity is by asking Quotient determines the total electricity of battery, and the practical total capacity of battery is determined with this, can avoid needing in battery capacity detection process The detection efficiency of battery capacity is improved completely full of the consumption to the time when putting.

210, when the total capacity of the battery is greater than or equal to default rated capacity, determine that the battery is qualified.

After the total capacity for having calculated battery in step 209, due to the actual capacity that the battery total capacity is battery, and Battery as a kind of power supply, the problems such as rosin joint, material change in polarity are likely to occur in actual production link It influences, then influences the capacity of battery.Therefore, it needs to be determined that the actual capacity of the device is after the total capacity of battery is determined It is no to reach preset rated capacity, and determine whether the battery is qualified with this.Therefore, after abovementioned steps 209, it is also necessary to right The total capacity of battery is compared with rated capacity.

When the total capacity for determining the battery is greater than or equal to rated capacity, then the actual capacity of the battery can have been determined Through the capacity goals at the beginning of meeting battery design, hence, it can be determined that the battery meets the standard of rated capacity, and then determining should Battery is spec battery

In addition, when the total capacity for determining the battery is less than rated capacity, then illustrate the actual capacity of the battery not Reach preassigned when design, i.e. actual capacity does not reach rated capacity, thus can then determine that the battery does not meet mark Standard can then determine that the battery is unqualified.

In addition, in this step, it, can also be right to ensure the accuracy of monitoring result when determining that the battery is unqualified The unqualified battery carries out secondary detection, to exclude the influence of certain extraneous factors, for example, detection zone temperature anomaly when detection Influence.

In addition, in the actual production of battery, since battery is as a kind of electronic device, itself is by technique, material etc. The influence of aspect, it is identical numerical value not ensure that all battery capacities all in the battery produced, multiple batteries There may be a certain range of fluctuations between capacity, and therefore, the rated capacity described in embodiment of the disclosure includes but not It is limited to certain certain value, can also is the value range near some definite value, i.e. rated capacity section.As a result, described in this step , can also to battery, whether qualification judges according to the rated capacity interval value of battery in method.

It should be noted that since the battery capacity check method described in embodiment of the disclosure is can be grasped by discharging Make to carry out with charging operations two ways.The detection that battery capacity is realized based on charging process can also be chosen as a result, Journey.And when detection process is based on charging process come when realizing, the variation electricity described in the embodiment of the present disclosure is actually then electricity Increase electricity after the charging of pond, and the correlations such as second temperature, the second open-circuit voltage, second charged value acquired in abovementioned steps The acquisition of parameter, then be that the open-circuit voltage after the charging after being charged based on battery after temperature and charging is carried out, and specific Other implementation procedures it is then consistent with the step in step 201-209 described in embodiment of the disclosure, before being all based on charging Open-circuit voltage determines corresponding charged value afterwards, and according to the increase electricity of the battery after the variation and charging of charged value it Between relationship determine the actual capacity of battery, it is not another herein specifically, since implementation procedure is essentially identical with abovementioned steps One repeats.

As a result, by the judgement between the total capacity and rated capacity to battery, and the battery is determined according to judging result It is whether qualified, can realize to battery whether qualified detection function, and then the battery capacity of the disclosure can be made to detect Method is on the basis of determining battery capacity, additionally it is possible to realize the detection function of certified products, the further perfect reality of the disclosure Apply the detection function of the battery capacity check method described in example.

Further, as the realization to method shown in above-mentioned Fig. 1, embodiment of the disclosure additionally provides a kind of battery appearance Amount detecting device, for being realized to above-mentioned method shown in FIG. 1.The device embodiment is corresponding with preceding method embodiment, For ease of reading, present apparatus embodiment no longer repeats the detail content in preceding method embodiment one by one, but it should bright Really, the device in the present embodiment can correspond to the full content realized in preceding method embodiment.As shown in figure 3, the device packet It includes：First acquisition unit 31, the first determination unit 32, second acquisition unit 33, the second determination unit 34 and third determination unit 35, wherein

First acquisition unit 31 can be used for obtaining the first open-circuit voltage and the first temperature of battery.

First determination unit 32, the first open-circuit voltage that can be used for being obtained according to the first acquisition unit 31 and described First temperature determines the charged value of the battery by state-of-charge matrix, is denoted as the first charged value, the charged value is measurement Capacity parameter when battery charge state, the state-of-charge matrix are temperature, open-circuit voltage and the charged value for characterizing battery Between correspondence matrix.

Second acquisition unit 33 can be used for after to the battery charge or discharge, and obtain the battery second opens Road voltage and second temperature.

Second determination unit 34, the second open-circuit voltage that can be used for being obtained according to the second acquisition unit 33 and described Second temperature determines the charged value of battery after charge or discharge by the state-of-charge matrix, is denoted as the second charged value.

Third determination unit 35, the first charged value that can be used for being obtained according to first determination unit 32, described The variation electricity of the second charged value and the battery that two determination units 34 determine determines the total capacity of the battery, the electricity The variation electricity in pond is the electricity that the battery changes in discharge process or in charging process.

Further, as the realization to method shown in above-mentioned Fig. 2, embodiment of the disclosure additionally provides a kind of battery appearance Amount detecting device, for being realized to above-mentioned method shown in Fig. 2.The device embodiment is corresponding with preceding method embodiment, For ease of reading, present apparatus embodiment no longer repeats the detail content in preceding method embodiment one by one, but it should bright Really, the device in the present embodiment can correspond to the full content realized in preceding method embodiment.As shown in figure 4, the device packet It includes：First acquisition unit 401, the first determination unit 402, second acquisition unit 403, the second determination unit 404 and third determine Unit 405, wherein

First acquisition unit 401 can be used for obtaining the first open-circuit voltage and the first temperature of battery.

First determination unit 402, the first open-circuit voltage that can be used for being obtained according to the first acquisition unit 401 and institute The first temperature is stated, the charged value of the battery is determined by state-of-charge matrix, is denoted as the first charged value, the charged value is weighing apparatus Capacity parameter when battery charge state is measured, the state-of-charge matrix is temperature, open-circuit voltage and the charged value for characterizing battery Between correspondence matrix.

Second acquisition unit 403 can be used for after to the battery charge or discharge, and obtain the battery second opens Road voltage and second temperature.

Second determination unit 404, the second open-circuit voltage that can be used for being obtained according to the second acquisition unit 403 and institute Second temperature is stated, the charged value of battery after charge or discharge is determined by the state-of-charge matrix, is denoted as the second charged value.

Third determination unit 405, it is the first charged value that can be used for being obtained according to first determination unit 402, described The variation electricity of the second charged value and the battery that second determination unit 404 determines determines the total capacity of the battery, institute The variation electricity for stating battery is the electricity that the battery changes in discharge process or in charging process.

Further, described device further includes：

Third acquiring unit 406 can be used for obtaining sample battery at different temperatures, the corresponding open circuit of the charged value of difference Voltage；

Establish unit 407, the charged value that can be used for being obtained according to the third acquiring unit 406, open-circuit voltage and Correspondence between temperature establishes state-of-charge matrix, so as to first determination unit, 402 and second determination unit 404 Determine corresponding charged value, the state-of-charge matrix includes open-circuit voltage and its corresponding charged value under different temperatures.

Further, the third acquiring unit 406 includes：

Acquisition module 4061 can be used for obtaining the sample battery respectively by battery management system every time different Open-circuit voltage under preset temperature and corresponding charged value.

Further, the third determination unit 405 includes：

First computing module 4051 can be used for carrying out seeking poor meter to the described first charged value and the second charged value It calculates, obtains charged difference；

Second computing module 4052 can be used for that the variation electricity and first computing module 4051 is calculated Charged difference ask and discuss calculation, obtain the total capacity of the battery.

Further, described device further includes：

4th acquiring unit 408 can be used for during the battery charge or discharge, obtaining the variation of the battery Electricity.

Further, the 4th acquiring unit 408 includes：

Acquisition module 4081, can be used for obtaining during the battery charge or discharge battery charging or Discharge current；

Computing module 4082 can be used for carrying out integrating meter to the charge or discharge electric current that the acquisition module 4081 obtains It calculates, obtains the variation electricity of the battery.

Further, described device further includes：

The second acquisition unit 403 can be specifically used for obtaining the second open circuit of the battery after standing preset time Voltage and second temperature.

By above-mentioned technical proposal, a kind of battery capacity check method of embodiment of the disclosure offer and device.For existing There is technology when being detected to battery capacity, time loss is larger, the problem of influencing detection efficiency.Compared with the prior art, The disclosure by the first open-circuit voltage and the first temperature, the first charged value of battery is determined in state-of-charge matrix, and By the second open-circuit voltage and second temperature, the second charged value of battery is determined in state-of-charge matrix, it is contemplated that temperature Influence to battery charge value to improve the accuracy of the first, second charged value, and then is subsequent battery total capacity Calculating provides Data safeguard, improves the accuracy of battery capacity testing result on the whole.Meanwhile by first it is charged value, The variation electricity of second charged value and battery avoids the battery capacity detection for being completely full of formula of putting to calculate the total capacity of battery Charging process in the process, and reduce the time loss in electric discharge or charging process, electricity can be then reduced on the whole Time needed for tankage detection process improves the detection efficiency of battery capacity.

Meanwhile in the disclosure, lotus is established by the correspondence between charged value, open-circuit voltage and temperature Electricity condition matrix, due to consideration that temperature is to the influence in battery between open-circuit voltage, charged value, it can be ensured that established The accuracy of state-of-charge matrix, and then the testing result that can improve the battery capacity detection based on the state-of-charge matrix is accurate True property.Also, by acquired the first open-circuit voltage and the first temperature, the first lotus of battery is determined in state-of-charge matrix Electricity value, can realize the determination function to the charged value before present battery charge or discharge, also, pass through open-circuit voltage, temperature To determine charged value, it is contemplated that influence of the temperature to battery open circuit voltage and charged value, to avoid because not considering that temperature is made At the relatively low problem of the charged value accuracy of determination, also, by the second open-circuit voltage, second temperature and state-of-charge matrix come Determine the charged value after battery charge or discharge, the accuracy of the second charged value after the battery charge or discharge that can ensure, And then the accuracy of battery capacity testing result can be improved on the whole, it can be provided for subsequent battery capacity detection process Guarantee in data, it is ensured that the accuracy of battery capacity testing result on the whole.

In addition, by being charged the battery with preset charge or discharge rate or discharge operation, can to charging or The speed of electric discharge is effectively controlled, and then improves the time loss during battery detecting on the whole.Meanwhile by battery Charge or discharge are to target voltage, when can further control charge or discharge process, and then make charge or discharge Between standardization, controllableization, and then raising battery detecting process time loss controllability.In addition, by obtaining battery charging Or the current value in discharge process, and integration operation is carried out to the current value, obtain the variation during battery charge or discharge Electricity more can accurately obtain electricity or more accurate can obtain that battery changes during charge or discharge To increased electricity of the battery in charging process, data basis is established in the detection for subsequent battery capacity in this way.In addition, After the battery charge or discharge, battery standing equipment is controlled by the battery standing preset time, to avoid Battery self-heating, the problem for causing open-circuit voltage unstable when because of charge or discharge, and then it is charged to improve follow-up second Value and second temperature obtain the accuracy of result, then make the battery capacity testing result of the disclosure more accurate.

Further, it in the method for the disclosure, is corresponded to by state-of-charge during battery charge or discharge Capacity consumption ratio, and variation electricity determines the total electricity of battery by asking quotient, and determines the practical total of battery with this Capacity can avoid needing the full consumption full of to the time when putting in battery capacity detection process, improve the inspection of battery capacity Survey efficiency.Also, by the judgement between the total capacity and rated capacity to battery, and determine that the battery is according to judging result No qualification can realize the detection function whether qualified to battery, and then can make the battery capacity detection side of the disclosure Method is on the basis of determining battery capacity, additionally it is possible to realize the detection function of certified products, the further perfect implementation of the disclosure The detection function of battery capacity check method described in example.

The battery capacity detection device includes processor and memory, and above-mentioned first acquisition unit, first determine list Member, second acquisition unit, the second determination unit and third determination unit etc. are stored as program unit in memory, by handling Device executes above procedure unit stored in memory to realize corresponding function.

Include kernel in processor, is gone in memory to transfer corresponding program unit by kernel.Kernel can be arranged one Or more, the time loss of battery capacity detection process is reduced by adjusting kernel parameter, improves detection efficiency.

Memory may include computer-readable medium in volatile memory, random access memory (RAM) and/ Or the forms such as Nonvolatile memory, if read-only memory (ROM) or flash memory (flash RAM), memory include at least one deposit Store up chip.

Embodiment of the disclosure provides a kind of storage medium, is stored thereon with program, when which is executed by processor Realize the battery capacity check method.

Embodiment of the disclosure provides a kind of processor, and the processor is for running program, wherein described program is transported The battery capacity check method is executed when row.

Embodiment of the disclosure provides a kind of equipment, and equipment includes processor, memory and stores on a memory simultaneously The program that can be run on a processor, processor realize following steps when executing program：Obtain battery the first open-circuit voltage and First temperature；According to first open-circuit voltage and first temperature, the lotus of the battery is determined by state-of-charge matrix Electricity value is denoted as the first charged value, and the charged value is the capacity parameter for weighing when battery charge state, the state-of-charge matrix The matrix of correspondence between temperature, open-circuit voltage and charged value to characterize battery；After to the battery charge or discharge, Obtain the second open-circuit voltage and second temperature of the battery；According to second open-circuit voltage and the second temperature, pass through The state-of-charge matrix determines the charged value of battery after charge or discharge, is denoted as the second charged value；It is charged according to described first The variation electricity of value, the second charged value and the battery determines the total capacity of the battery, the variation electricity of the battery Amount is the electricity that the battery changes in discharge process or in charging process.

Further, before first open-circuit voltage for obtaining battery and the first temperature, the method further includes：

Further, the acquisition sample battery at different temperatures, the corresponding open-circuit voltage of different charged value, including：

Further, in the variation electricity according to the described first charged value, the second charged value and the battery After amount determines the total capacity of the battery, the method further includes：

When the total capacity of the battery is greater than or equal to default rated capacity, determine that the battery is qualified.Further, Total appearance that the battery is determined according to the variation electricity of the described first charged value, the second charged value and the battery Amount, including：

Further, in the variation electricity according to the described first charged value, the second charged value and the battery Before amount determines the total capacity of the battery, the method further includes：

Further, described during the battery charge or discharge, the variation electricity for obtaining the battery includes：

Further, the control producing line charge/discharge test device, with preset charge or discharge rate to the battery Charge or discharge operation is carried out, including：

Further, before second open-circuit voltage for obtaining the battery and second temperature, the method is also wrapped It includes：

Embodiment of the disclosure additionally provides a kind of computer program product, when being executed on data processing equipment, fits In the program for executing initialization there are as below methods step：Obtain the first open-circuit voltage and the first temperature of battery；According to described One open-circuit voltage and first temperature, the charged value of the battery is determined by state-of-charge matrix, is denoted as the first charged value, The charged value is capacity parameter when weighing battery charge state, and the state-of-charge matrix is the temperature for characterizing battery, opens The matrix of correspondence between road voltage and charged value；After to the battery charge or discharge, the second of the battery is obtained Open-circuit voltage and second temperature；It is true by the state-of-charge matrix according to second open-circuit voltage and the second temperature The charged value for determining battery after charge or discharge, is denoted as the second charged value；According to described first it is charged value, it is described second it is charged value with And the variation electricity of the battery determines the total capacity of the battery, the variation electricity of the battery is that the battery was discharging The electricity changed in journey or in charging process.

When the total capacity of the battery is greater than or equal to default rated capacity, determine that the battery is qualified.

Further, the variation electricity according to the described first charged value, the second charged value and the battery Determine the total capacity of the battery, including：

It should be understood by those skilled in the art that, embodiments herein can be provided as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application Apply the form of example.Moreover, the application can be used in one or more wherein include computer usable program code computer The computer program production implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) The form of product.

The application is with reference to method, the flow of equipment (system) and computer program product according to the embodiment of the present application Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.

These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one The step of function of being specified in a box or multiple boxes.

In a typical configuration, computing device includes one or more processors (CPU), input/output interface, net Network interface and memory.

Memory may include computer-readable medium in volatile memory, random access memory (RAM) and/ Or the forms such as Nonvolatile memory, such as read-only memory (ROM) or flash memory (flash RAM).Memory is computer-readable Jie The example of matter.

Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method Or technology realizes information storage.Information can be computer-readable instruction, data structure, the module of program or other data. The example of the storage medium of computer includes, but are not limited to phase transition internal memory (PRAM), static RAM (SRAM), moves State random access memory (DRAM), other kinds of random access memory (RAM), read-only memory (ROM), electric erasable Programmable read only memory (EEPROM), fast flash memory bank or other memory techniques, read-only disc read only memory (CD-ROM) (CD-ROM), Digital versatile disc (DVD) or other optical storages, magnetic tape cassette, tape magnetic disk storage or other magnetic storage apparatus Or any other non-transmission medium, it can be used for storage and can be accessed by a computing device information.As defined in this article, it calculates Machine readable medium does not include temporary computer readable media (transitory media), such as data-signal and carrier wave of modulation.

It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability Including so that process, method, commodity or equipment including a series of elements include not only those elements, but also wrap Include other elements that are not explicitly listed, or further include for this process, method, commodity or equipment intrinsic want Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including element There is also other identical elements in process, method, commodity or equipment.

It will be understood by those skilled in the art that embodiments herein can be provided as method, system or computer program product. Therefore, complete hardware embodiment, complete software embodiment or embodiment combining software and hardware aspects can be used in the application Form.It is deposited moreover, the application can be used to can be used in the computer that one or more wherein includes computer usable program code The shape for the computer program product implemented on storage media (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) Formula.

It these are only embodiments herein, be not intended to limit this application.To those skilled in the art, The application can have various modifications and variations.It is all within spirit herein and principle made by any modification, equivalent replacement, Improve etc., it should be included within the scope of claims hereof.

Claims

1. a kind of battery capacity check method, which is characterized in that including：

Obtain the first open-circuit voltage and the first temperature of battery；

According to first open-circuit voltage and first temperature, the charged value of the battery is determined by state-of-charge matrix, It is denoted as the first charged value, the charged value is the capacity parameter for weighing when battery charge state, and the state-of-charge matrix is table Levy the matrix of correspondence between the temperature of battery, open-circuit voltage and charged value；

According to second open-circuit voltage and the second temperature, electricity after charge or discharge is determined by the state-of-charge matrix The charged value in pond is denoted as the second charged value；

Total appearance of the battery is determined according to the variation electricity of the described first charged value, the second charged value and the battery Amount, the variation electricity of the battery are the electricity that the battery changes in discharge process or in charging process.

2. according to the method described in claim 1, it is characterized in that, in first open-circuit voltage for obtaining battery and the first temperature Before degree, the method further includes：

According to the correspondence between the charged value, open-circuit voltage and temperature, state-of-charge matrix, the charged shape are established State matrix includes open-circuit voltage and its corresponding charged value under different temperatures.

3. according to the method described in claim 2, it is characterized in that, the acquisition sample battery at different temperatures, different lotuses Electricity is worth corresponding open-circuit voltage, including：

When being placed in sample battery under multiple and different preset temperatures, control charge/discharge test device distinguishes the sample battery Carry out multiple charge or discharge operation；

The sample battery is obtained respectively by battery management system every time under different preset temperatures after charge or discharge Open-circuit voltage and corresponding charged value.

4. according to the method described in claim 1, it is characterized in that, described according to the described first charged value, second lotus After the variation electricity of electric value and the battery determines the total capacity of the battery, the method further includes：

5. according to the method described in claim 1, it is characterized in that, it is described according to the described first charged value, it is described second charged The variation electricity of value and the battery determines the total capacity of the battery, including：

6. according to the method described in claim 1, it is characterized in that, described according to the described first charged value, second lotus Before the variation electricity of electric value and the battery determines the total capacity of the battery, the method further includes：

7. according to the method described in claim 6, it is characterized in that, described during the battery charge or discharge, acquisition The variation electricity of the battery includes：

8. according to the method described in claim 1, it is characterized in that, in second open-circuit voltage for obtaining the battery and the Before two temperature, the method further includes：

Producing line charge/discharge test device is controlled, charge or discharge behaviour is carried out to the battery with preset charge or discharge rate Make, the charge or discharge electric current when charge or discharge rate is used to characterize battery charge or discharge accounts for battery rated current Ratio.

9. according to the method described in claim 8, it is characterized in that, the control producing line charge/discharge test device, with preset Charge or discharge rate carries out charge or discharge operation to the battery, including：

Producing line charge/discharge test device is controlled, the battery is carried out to described by charge or discharge with preset charged or discharge rate The voltage of battery reaches target voltage.

10. according to the method described in any one of claim 1-9, which is characterized in that obtain the second of the battery described Before open-circuit voltage and second temperature, the method further includes：

11. a kind of battery capacity detection device, which is characterized in that including：

First determination unit, the first open-circuit voltage for being obtained according to the first acquisition unit and first temperature, lead to The charged value that state-of-charge matrix determines the battery is crossed, the first charged value is denoted as, the charged value is measurement battery charge shape Capacity parameter when state, the state-of-charge matrix are to characterize correspondence between the temperature of battery, open-circuit voltage and charged value Matrix；

Second acquisition unit obtains the second open-circuit voltage and the of the battery for after to the battery charge or discharge Two temperature；

Second determination unit, the second open-circuit voltage for being obtained according to the second acquisition unit and the second temperature, lead to The charged value that the state-of-charge matrix determines battery after charge or discharge is crossed, the second charged value is denoted as；

Third determination unit, the first charged value, second determination unit for being obtained according to first determination unit are true The variation electricity of fixed the second charged value and the battery determines that the total capacity of the battery, the variation electricity of the battery are The electricity that the battery changes in discharge process or in charging process.

12. according to the devices described in claim 11, which is characterized in that described device further includes：

Unit is established, the correspondence between charged value, open-circuit voltage and temperature for being obtained according to the third acquiring unit Relationship, establishes state-of-charge matrix, and the state-of-charge matrix includes under different temperatures, open-circuit voltage and its corresponding charged Value.

13. device according to claim 12, which is characterized in that the third acquiring unit includes：

Acquisition module, for obtaining the sample battery respectively by battery management system every time under different preset temperatures Open-circuit voltage and corresponding charged value.

14. according to the devices described in claim 11, which is characterized in that the third determination unit includes：

First computing module obtains charged difference for carrying out asking poor calculating to the described first charged value and the second charged value Value；

Second computing module, the charged difference for the variation electricity to be calculated with first computing module are asked Discuss calculation, obtains the total capacity of the battery.

15. according to claim 11 in device, which is characterized in that described device further includes：

16. device according to claim 15, it is characterised in that the 4th acquiring unit includes：

Computing module, the charge or discharge electric current for being obtained to the acquisition module carry out integral and calculating, obtain the battery Variation electricity.

17. according to the device described in any one of claim 11-16, which is characterized in that described device further includes：

The second acquisition unit is specifically used for obtaining the second open-circuit voltage of the battery after standing preset time and the second temperature Degree.

18. a kind of storage medium, which is characterized in that the storage medium includes the program of storage, wherein run in described program When control the storage medium where equipment perform claim require 1 to the battery capacity inspection described in any one of claim 10 Survey method.

19. a kind of electronic equipment, which is characterized in that the electronic equipment includes：

One or more processors；

Memory, for storing one or more programs；

When one or more of programs are executed by one or more of processors so that one or more of realizations are as weighed Profit requires 1 to the battery capacity check method described in any one of claim 10.