CN104569841A - Aging detection method and device for battery pack - Google Patents
Aging detection method and device for battery pack Download PDFInfo
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- CN104569841A CN104569841A CN201410836246.2A CN201410836246A CN104569841A CN 104569841 A CN104569841 A CN 104569841A CN 201410836246 A CN201410836246 A CN 201410836246A CN 104569841 A CN104569841 A CN 104569841A
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Abstract
The invention discloses an aging detection method and device for a battery pack. The method comprises the following steps: establishing a connection with a to-be-detected battery pack after receiving a detection request of detecting the aging degree of the to-be-detected battery pack; obtaining preset charge/discharge parameters corresponding to the detection request; performing a charge/discharge test on the to-be-detected battery pack according to the preset charge/discharge parameters through a charge/discharge circuit; acquiring a voltage parameter and a current parameter during the charge/discharge test of the to-be-detected battery pack; determining battery aging data corresponding to the voltage parameter and the current parameter. With the aging detection method and device, a problem of low detection speed of the aging degree of the battery in the prior art is solved and an effect of quickly and accurately detecting the aging degree of the battery pack is achieved.
Description
Technical field
The present invention relates to battery detecting field, in particular to a kind of degradation detecting method and device of electric battery.
Background technology
Now, battery is widely used in every field.Normally with battery cell packing in groups, namely carry out using with the form of electric battery, the battery cell of same electric battery is generally same model to battery, and battery initial parameter closely.In the actual use of electric battery, need often to detect the degree of aging of electric battery.If there is the electric battery that degree of aging is higher, then need disallowable, to avoid shadow work.
Current, the method detecting electric battery degree of aging is generally the complete electric discharge of big current.The method needs by taking the operation of complete discharge and recharge to measure the actual capacity of battery to electric battery, and the process of whole measurement not only expends time in, and measurement operation itself exacerbates the aging of battery.
For the slow-footed problem of degree of aging detecting electric battery in prior art, at present effective solution is not yet proposed.
Summary of the invention
For the slow-footed problem of degree of aging detecting electric battery in correlation technique, not yet propose effective solution at present, for this reason, fundamental purpose of the present invention is the degradation detecting method and the device that provide a kind of electric battery, to solve the problem.
To achieve these goals, according to an aspect of the present invention, provide a kind of degradation detecting method of electric battery, the method comprises: after receiving the detection request detecting mesuring battary group degree of aging, sets up the connection with mesuring battary group; Obtain and ask corresponding default discharge and recharge parameter with detection; According to default discharge and recharge parameter, charge-discharge test is carried out to electric battery to be measured by charge-discharge circuit; Gather voltage parameter when charge-discharge test carries out to electric battery to be measured and current parameters; Determine voltage parameter and cell degradation data corresponding to current parameters.
Further, after receiving the detection request detecting mesuring battary group degree of aging, degradation detecting method also comprises: the model obtaining mesuring battary group; Obtain and ask corresponding default discharge and recharge parameter to comprise with detection: read the default discharge and recharge parameter corresponding with model.
Further, carry out charge-discharge test according to default discharge and recharge parameter to electric battery to be measured by charge-discharge circuit to comprise: determine to carry out charging measurement or discharge test to electric battery to be measured by default discharge and recharge parameter; If carry out charging measurement to electric battery to be measured, the charging circuit of control simulation switch connection charging circuit and mesuring battary group; If carry out discharge test to electric battery to be measured, the discharge circuit of control simulation switch connection discharge circuit and mesuring battary group.
Further, according to default discharge and recharge parameter, charge-discharge test is carried out to electric battery to be measured by charge-discharge circuit and comprise: default discharge and recharge parameter is sent to battery set management unit, by the discharge and recharge of battery set management unit controls to electric battery to be measured.
Further, after determining voltage parameter and cell degradation data corresponding to current parameters, degradation detecting method also comprises: by the display of voltage parameter, current parameters and cell degradation data on a display screen.
To achieve these goals, according to a further aspect in the invention, provide a kind of degradation detecting device of electric battery, this device comprises: link block, for after receiving the detection request detecting mesuring battary group degree of aging, set up the connection with mesuring battary group; First acquisition module, asks corresponding default discharge and recharge parameter for obtaining with detecting; Test module, for carrying out charge-discharge test according to default discharge and recharge parameter to electric battery to be measured by charge-discharge circuit; Acquisition module, for gathering voltage parameter when carrying out charge-discharge test to electric battery to be measured and current parameters; Determination module, for determining voltage parameter and cell degradation data corresponding to current parameters.
Further, degradation detecting device also comprises: the second acquisition module, for after receiving the detection request detecting mesuring battary group degree of aging, obtains the model of mesuring battary group; First acquisition module also comprises: read module, for reading the default discharge and recharge parameter corresponding with model.
Further, test module also comprises: test submodule, for determining to carry out charging measurement or discharge test to electric battery to be measured by presetting discharge and recharge parameter; First starts module, if for carrying out charging measurement to electric battery to be measured, and the charging circuit of control simulation switch connection charging circuit and mesuring battary group; Second starts module, if for carrying out charging measurement to electric battery to be measured, and the discharge circuit of control simulation switch connection discharge circuit and mesuring battary group.
Further, test module also comprises: sending module, for default discharge and recharge parameter is sent to battery set management unit, by the discharge and recharge of battery set management unit controls to electric battery to be measured.
Further, degradation detecting device also comprises: display module, for voltage parameter, current parameters and cell degradation data being shown on a display screen.
Adopt the above embodiment of the present invention, mesuring battary group is connected with the degradation detecting device of electric battery, determination module issues the discharge and recharge parameter corresponding with mesuring battary group, to carry out discharge and recharge to electric battery to be measured, and voltage parameter when gathering the discharge and recharge of mesuring battary group and current parameters, to determine the degree of aging of this mesuring battary group.Wherein, in the process detected, acquisition module can carry out high-precision measurement to the voltage parameter of electric battery to be measured and current parameters in real time, and by measurement feedback to determination module, determination module is according to the degree of aging of this voltage and current parameter determination battery, in this testing process, without the need to being fully charged electric battery to be measured and discharging completely, shorten detection time, and Real-time Collection voltage signal and current signal, make the accuracy of the current parameters collected high, thus make the accuracy of the cell degradation data determined high.By the present invention, solve in prior art the slow-footed problem of the degree of aging detecting battery, achieve the effect that electric battery degree of aging fast and accurately is detected.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the process flow diagram of the degradation detecting method of electric battery according to the embodiment of the present invention;
Fig. 2 is the process flow diagram according to default discharge and recharge parameter, electric battery to be measured being carried out to charge-discharge test by charge-discharge circuit according to the embodiment of the present invention;
Fig. 3 is the schematic diagram of the degradation detecting device of electric battery according to the embodiment of the present invention;
Fig. 4 is the schematic diagram of the degradation detecting device of an optional electric battery according to the embodiment of the present invention; And
Fig. 5 is the process flow diagram detected electric battery to be measured according to the degradation detecting device of the use electric battery of the embodiment of the present invention.
Embodiment
The present invention program is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the embodiment of a part of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
It should be noted that, term " first ", " second " etc. in instructions of the present invention and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged in the appropriate case, so as embodiments of the invention described herein can with except here diagram or describe those except order implement.In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, such as, contain those steps or unit that the process of series of steps or unit, method, system, product or equipment is not necessarily limited to clearly list, but can comprise clearly do not list or for intrinsic other step of these processes, method, product or equipment or unit.
Fig. 1 is the process flow diagram of the degradation detecting method of electric battery according to the embodiment of the present invention, and the method comprises the steps: as shown in Figure 1
Step S102, after receiving the detection request detecting mesuring battary group degree of aging, sets up the connection with mesuring battary group.
Step S104, obtains and asks corresponding default discharge and recharge parameter with detection.
Wherein, after step S102 performs, detect the model of the mesuring battary group connected, namely the discharge and recharge parameter in step S104 is the discharge and recharge parameter corresponding with mesuring battary group model.
Step S106, carries out charge-discharge test according to default discharge and recharge parameter to electric battery to be measured by charge-discharge circuit.
Step S108, gathers voltage parameter when carrying out charge-discharge test to electric battery to be measured and current parameters.
Step S110, determines voltage parameter and cell degradation data corresponding to current parameters.
Adopt the above embodiment of the present invention, mesuring battary group is connected with the degradation detecting device of electric battery, determination module issues the discharge and recharge parameter corresponding with mesuring battary group, to carry out discharge and recharge to electric battery to be measured, and voltage parameter when gathering the discharge and recharge of mesuring battary group and current parameters, to determine the degree of aging of this mesuring battary group.Wherein, in the process detected, acquisition module can carry out high-precision measurement to the voltage parameter of electric battery to be measured and current parameters in real time, and by measurement feedback to determination module, determination module is according to the degree of aging of this voltage and current parameter determination battery, in this testing process, without the need to being fully charged electric battery to be measured and discharging completely, shorten detection time, and Real-time Collection voltage signal and current signal, make the accuracy of the current parameters collected high, thus make the accuracy of the cell degradation data determined high.By the present invention, solve in prior art the slow-footed problem of the degree of aging detecting battery, achieve the effect that electric battery degree of aging fast and accurately is detected.
Wherein, in the above embodiment of the present invention, step S102 can comprise after receiving the detection request detecting mesuring battary group degree of aging: the model obtaining mesuring battary group.
Particularly, when detecting that mesuring battary group accesses, the model of the model of mesuring battary group with the electric battery prestored being compared, obtains the model of mesuring battary group.Wherein, the model of the electric battery prestored is a statistics to electric battery model.
In an optional embodiment of the present invention, step S104 obtains and asks corresponding default discharge and recharge parameter to comprise with detection: read the default discharge and recharge parameter corresponding with model.
Wherein, presetting discharge and recharge parameter is the discharge and recharge policing parameter for different electric battery prestored.
In another optional embodiment of the present invention, step S106 carries out charge-discharge test according to default discharge and recharge parameter to electric battery to be measured by charge-discharge circuit and can also comprise: default discharge and recharge parameter is sent to battery set management unit, by the discharge and recharge of battery set management unit controls to electric battery to be measured.
Such as, when accessing mesuring battary group, corresponding default discharge and recharge parameter can be read according to the model of mesuring battary group in step S104, then the default discharge and recharge parameter read is issued to battery set management unit, battery set management unit then can according to the default discharge and recharge state modulator received to the discharge and recharge of electric battery to be measured.
Adopt the above embodiment of the present invention, as shown in Figure 2, step S106 carries out charge-discharge test according to default discharge and recharge parameter to electric battery to be measured by charge-discharge circuit and can realize as follows:
Step S202, determines to carry out charging measurement or discharge test to electric battery to be measured by default discharge and recharge parameter.
Step S204, if carry out charging measurement to electric battery to be measured, the charging circuit of control simulation switch connection charging circuit and mesuring battary group.
Step S206, if carry out discharge test to electric battery to be measured, the discharge circuit of control simulation switch connection discharge circuit and mesuring battary group.
Particularly, when mesuring battary group accesses, the model of mesuring battary group can be detected.System can issue discharge and recharge parameter according to the model of the mesuring battary group detected, if the parameter that issues that control simulation switch receives is charge parameter, then and the charging circuit of control simulation switch connection charging circuit and mesuring battary group; If what control simulation switch received issues parameter is discharge parameter, then the discharge circuit of control simulation switch connection discharge circuit and mesuring battary group.
What needs further illustrated is, when detecting electric battery to be measured without the need to being fully charged electric battery to be measured and discharging completely, shorten detection time, and Real-time Collection voltage parameter and current parameters in the process detected, the accuracy of voltage parameter and the current parameters collected is improved, thus makes the accuracy of the mesuring battary group aging data determined high.
According to above-described embodiment, after step S110 determines voltage parameter and cell degradation data corresponding to current parameters, can also comprise: by the display of voltage parameter, current parameters and cell degradation data on a display screen.
It should be noted that, can perform in the computer system of such as one group of computer executable instructions in the step shown in the process flow diagram of accompanying drawing, and, although show logical order in flow charts, but in some cases, can be different from the step shown or described by order execution herein.
Fig. 3 is the schematic diagram of the degradation detecting device of electric battery according to the embodiment of the present invention.This electric battery degradation detecting device comprises: link block 12, first acquisition module 14, test module 13, acquisition module 4 and determination module 15.
Wherein, link block 12, for after receiving the detection request detecting mesuring battary group degree of aging, sets up the connection with mesuring battary group; First acquisition module 14 asks corresponding default discharge and recharge parameter for obtaining with detecting; Test module 13 is for carrying out charge-discharge test according to default discharge and recharge parameter to electric battery to be measured by charge-discharge circuit; Acquisition module 4 is for gathering voltage parameter when carrying out charge-discharge test to electric battery to be measured and current parameters; Determination module 15 is for determining voltage parameter and cell degradation data corresponding to current parameters.
Adopt the above embodiment of the present invention, the connection of the degradation detecting device of mesuring battary group and electric battery is set up by link block, determination module issues the discharge and recharge parameter corresponding with mesuring battary group that the first acquisition module obtains, to carry out discharge and recharge by test module to electric battery to be measured, and use acquisition module gather mesuring battary group discharge and recharge time voltage parameter and current parameters, to determine the degree of aging of this mesuring battary group.Wherein, in the process detected, acquisition module can carry out high-precision measurement to the voltage parameter of electric battery to be measured and current parameters in real time, and by measurement feedback to determination module, determination module is according to the degree of aging of this voltage and current parameter determination battery, in this testing process, without the need to being fully charged electric battery to be measured and discharging completely, shorten detection time, and Real-time Collection voltage signal and current signal, make the accuracy of the current parameters collected high, thus make the accuracy of the cell degradation data determined high.By the present invention, solve in prior art the slow-footed problem of the degree of aging detecting battery, achieve the effect that electric battery degree of aging fast and accurately is detected.
Particularly, when system receives and detects request, link block connects the connection between mesuring battary group and system; Then the first acquisition module obtains according to the model of mesuring battary group and asks corresponding default discharge and recharge parameter with detection; System detects mesuring battary according to discharge and recharge parameter after obtaining discharge and recharge parameter; When electric battery to be measured is detected, the voltage parameter of acquisition module Real-time Collection mesuring battary group and current parameters; Then, determination module is according to the degree of aging of the current parameters of collected mesuring battary group and voltage parameter determination mesuring battary group.
Need to further illustrate, the link block 12 in above-described embodiment can be the connecting line be connected with mesuring battary group, but is not limited to connecting line, also can be other coupling arrangement, such as battery charge and discharge box; First acquisition module is the submodule of communication module 7; Determination module 15 can be arranged in main control unit 1, and main control unit can adopt the DSP of TMS320F28335 model, and DSP is a kind of processor for computation-intensive.
Acquisition module 4 in this embodiment can be multimeter, reometer or voltage table.The battery parameter collected by acquisition module is simulating signal, after determination module receives simulating signal, filtering process is carried out to it, and filtered simulating signal is converted to digital signal, then this digital signal is carried out to next step process, as, it to be calculated, relatively or from tables of data, read the operations such as corresponding data.
Wherein, the first acquisition module also comprises: read module.
The above embodiment of the present invention is introduced in detail below in conjunction with Fig. 4, Fig. 4 is the schematic diagram of the degradation detecting device of an optional electric battery according to the embodiment of the present invention, as shown in Figure 4, communication module 7 is for transmitting data, signal and instruction, read module is the submodule of communication module, for reading the default discharge and recharge parameter corresponding with model.Particularly, when mesuring battary group access link block, read module is for reading the default discharge and recharge parameter issued according to the model of mesuring battary group by determination module.
Wherein, communication module for realizing the communication between main control unit 1 and battery management module 10, as correlation parameter and determination module for reading mesuring battary group issue default discharge and recharge parameter etc.
In the above-described embodiments, the degradation detecting device of electric battery can also comprise the second acquisition module.As shown in Figure 4, the second acquisition module also can be the submodule of communication module 7, for after receiving the detection request detecting mesuring battary group degree of aging, obtains the model of mesuring battary group.
Test module also comprises in this embodiment: test submodule, first starts module and second and starts module.
Wherein, test submodule, for determining to carry out charging measurement or discharge test to electric battery to be measured by presetting discharge and recharge parameter; First starts module, if for carrying out charging measurement to electric battery to be measured, and the charging circuit of control simulation switch connection charging circuit and mesuring battary group; Second starts module, if for carrying out charging measurement to electric battery to be measured, and the discharge circuit of control simulation switch connection discharge circuit and mesuring battary group.
What needs further illustrated is, in above-described embodiment first starts module can adopt Boost circuit, but be not limited to employing Boost circuit, other booster circuits can be adopted as required, voltage in battery module 5 is as shown in Figure 4 promoted, and by battery management module, constant-current constant-voltage charging is carried out to electric battery to be measured; Second starts module can adopt push-pull ortho-exciting circuit, but is not limited to adopt push-pull ortho-exciting circuit, for the electric energy of mesuring battary group being converted to the electric energy of battery module, namely carries out discharge operation to electric battery to be measured; Test submodule controls by determination module, carries out charging operations or discharge operation for the discharge and recharge Selecting parameter issued according to determination module to electric battery to be measured.
Wherein, Boost circuit is a kind of switch DC booster circuit, and it can make output voltage higher than input voltage; Push-pull ortho-exciting circuit is used for the output voltage of mesuring battary group to reduce, and charges to battery module 5.
According to above-described embodiment, as shown in Figure 4 first starts module 2, is connected with main control unit 1, and is connected with mesuring battary group 11 with sending module, for charging to electric battery 11 to be measured by test submodule 6; Second starts module 3, is connected with main control unit 1, and is connected with mesuring battary group 11 with sending module, for discharging to electric battery 11 to be measured by test submodule 6.
Particularly, after determination module issues the degree of aging detection instruction to electric battery to be measured, set up the degradation detecting device of electric battery and the connection of mesuring battary group, and obtain the default discharge and recharge strategy corresponding with the model of mesuring battary group, the discharge and recharge parameter preset in this default discharge and recharge strategy is issued to test module, start module according to the discharge and recharge state modulator first preset to charge to electric battery to be measured, and/or control the second startup module to battery power discharge to be measured.
In the above-described embodiments, test module can also comprise sending module, for default discharge and recharge parameter is sent to battery set management unit, by the discharge and recharge of battery set management unit controls to electric battery to be measured.
Wherein, sending module is not shown in Figure 4, and sending module is the submodule of test submodule 6, implements discharge and recharge for the discharge and recharge parameter issued according to determination module to electric battery to be measured.
In the above-described embodiments, the degradation detecting device of electric battery can also comprise display module 8, for voltage parameter, current parameters and cell degradation data being shown on a display screen.Particularly, display module 8 can be liquid crystal display, but is not limited to liquid crystal display, also can be touch-screen or other display device, for showing the cell degradation data that acquisition module collects.
Introduce the above embodiment of the present invention in detail below in conjunction with Fig. 5, as shown in Figure 5, using the degradation detecting device of electric battery to carry out detection to electric battery to be measured can realize by the following method:
Step S502: with mesuring battary group same model and brand-new electric battery carries out parameter calibration.
Particularly, before cell degradation test is carried out to electric battery to be measured, parameter calibration can be carried out by the brand-new electric battery identical with the model of mesuring battary group 11, obtain rated voltage and rated current.
In this processing procedure, by the degradation detecting device of the above-mentioned brand new cells group access electric battery for demarcating, instruction can be inputted by operational module 9, then the discharge and recharge parameter that match with the model of this electric battery is selected in the instruction that determination module can input according to operational module, and selected parameter and relevant information thereof are transmitted display module 8 and show; Under the control of determination module, perform among the process to the discharge and recharge of new electric battery, acquisition module 4 can gather the cell degradation data of new battery, then the data collected are shown by display, meanwhile, the cell degradation raw data that collects of acquisition module can by the instant process of determination module.When discharge and recharge strategy execution is complete, the calibration result of the degree of aging of measured new electric battery can be shown by display by determination module, and for demarcating mesuring battary group 11.
Step S504: connect mesuring battary group and initialization is carried out to whole system.
Particularly, mesuring battary group 11 is accessed link block 12, and input dependent instruction by operational module 9, initialization battery management module 10, test module 13, communication module 7, acquisition module 4 and display module 8.
Step S506: the ageing management instrument of electric battery detects issuing of instruction.
Determination module issues default discharge and recharge parameter to battery management module and test module, and then battery management module adopts the discharge and recharge strategy preset to carry out discharge and recharge operation to electric battery to be measured according to the discharge and recharge parameter issued.During charging operations, test submodule 6 starts module 2 connecting system by first, and battery module 5 starts module by first and charges to electric battery to be measured; During discharge operation, test submodule 6 starts module 3 connecting system by second, and mesuring battary group starts module by second and charges to battery module 5, namely carries out discharge operation to electric battery to be measured.When carrying out discharge and recharge operation, acquisition module gathers the voltage and current parameter of mesuring battary group, and feeds back to main control unit 1, for the degree of aging analysis to electric battery to be measured.
Step S508: mesuring battary group degree of aging result shows.
The voltage parameter of the mesuring battary group that acquisition module collects by determination module and current parameters carry out processing the aging data obtained and are shown to user through display module 8.
Wherein, discharge and recharge strategy pre-sets and is stored among determination module, in use, can increase as required or delete discharge and recharge strategy; Parameter calibration refers to the rated current and rated voltage that are recorded by the type brand new cells group reference instrument, and by these parameters for calibrating other similar batteries; The method for expressing of cell degradation situation with concrete data list, also can represent with figure; Operational module 9, is connected with determination module, for inputting the instruction detected electric battery to be measured, can be button, also can be other input media, such as mouse etc.; Battery module 5, can be electric battery, but be not limited to electric battery, can be also storage battery etc., is mainly used in providing power supply when charging to electric battery to be measured, simultaneously when discharging for absorbing the electric energy of mesuring battary group release.
The modules provided in the present embodiment is identical with the using method that the corresponding step of embodiment of the method provides, application scenarios also can be identical.It is noted, of course, that the scheme that above-mentioned module relates to can be not limited to content in above-described embodiment one and scene, and above-mentioned module may operate in terminal or mobile terminal, can pass through software or hardware implementing.
As can be seen from the above description, present invention achieves following technique effect:
Adopt the above embodiment of the present invention, mesuring battary group is connected with the degradation detecting device of electric battery, determination module issues the discharge and recharge parameter corresponding with mesuring battary group, to carry out discharge and recharge to electric battery to be measured, and voltage parameter when gathering the discharge and recharge of mesuring battary group and current parameters, to determine the degree of aging of this mesuring battary group.Wherein, in the process detected, acquisition module can carry out high-precision measurement to the voltage parameter of electric battery to be measured and current parameters in real time, and by measurement feedback to determination module, determination module is according to the degree of aging of this voltage and current parameter determination battery, in this testing process, without the need to being fully charged electric battery to be measured and discharging completely, shorten detection time, and Real-time Collection voltage signal and current signal, make the accuracy of the current parameters collected high, thus make the accuracy of the cell degradation data determined high.By the present invention, solve in prior art the slow-footed problem of the degree of aging detecting battery, achieve the effect that electric battery degree of aging fast and accurately is detected.
The ageing management instrument of the claimed electric battery of the present invention, controller and each assembly forming this processor be all a kind of have determine shape, structure and occupy the entity products of certain space.If dsp processor, data acquisition unit etc. are all can independent operating, the computer equipment with particular hardware structure, terminal or server.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a degradation detecting method for electric battery, is characterized in that, comprising:
After receiving the detection request detecting mesuring battary group degree of aging, set up the connection with described mesuring battary group;
Obtain and ask corresponding default discharge and recharge parameter with described detection;
According to described default discharge and recharge parameter, charge-discharge test is carried out to described mesuring battary group by charge-discharge circuit;
Gather voltage parameter when charge-discharge test carries out to described mesuring battary group and current parameters;
Determine described voltage parameter and cell degradation data corresponding to described current parameters.
2. degradation detecting method according to claim 1, is characterized in that,
After receiving the detection request detecting mesuring battary group degree of aging, described degradation detecting method also comprises: the model obtaining described mesuring battary group;
Obtaining asks corresponding default discharge and recharge parameter to comprise with described detection: read the described default discharge and recharge parameter corresponding with described model.
3. degradation detecting method according to claim 1, is characterized in that, carry out charge-discharge test comprise by charge-discharge circuit according to described default discharge and recharge parameter to described mesuring battary group:
Determine to carry out charging measurement or discharge test to described mesuring battary group by described default discharge and recharge parameter;
If carry out charging measurement to described mesuring battary group, the charging circuit of control simulation switch connection charging circuit and described mesuring battary group;
If carry out discharge test to described mesuring battary group, the discharge circuit of control simulation switch connection discharge circuit and described mesuring battary group.
4. degradation detecting method as claimed in any of claims 1 to 3, is characterized in that, carries out charge-discharge test comprise by charge-discharge circuit according to described default discharge and recharge parameter to described mesuring battary group:
Described default discharge and recharge parameter is sent to battery set management unit, by the discharge and recharge of described battery set management unit controls to described mesuring battary group.
5. according to degradation detecting method described in any one in claims 1 to 3, it is characterized in that, after determining described voltage parameter and cell degradation data corresponding to described current parameters, described degradation detecting method also comprises:
By the display of described voltage parameter, described current parameters and described cell degradation data on a display screen.
6. a degradation detecting device for electric battery, is characterized in that, comprising:
Link block, for after receiving the detection request detecting mesuring battary group degree of aging, sets up the connection with described mesuring battary group;
First acquisition module, asks corresponding default discharge and recharge parameter for obtaining with described detection;
Test module, for carrying out charge-discharge test according to described default discharge and recharge parameter to described mesuring battary group by charge-discharge circuit;
Acquisition module, for gathering voltage parameter when carrying out charge-discharge test to described mesuring battary group and current parameters;
Determination module, for determining described voltage parameter and cell degradation data corresponding to described current parameters.
7. degradation detecting device according to claim 6, is characterized in that,
Described degradation detecting device also comprises: the second acquisition module, for after receiving the detection request detecting mesuring battary group degree of aging, obtains the model of described mesuring battary group;
Described first acquisition module also comprises: read module, for reading the described default discharge and recharge parameter corresponding with described model.
8. degradation detecting device according to claim 7, is characterized in that, described test module also comprises:
Test submodule, for determining to carry out charging measurement or discharge test to described mesuring battary group by described default discharge and recharge parameter;
First starts module, if for carrying out charging measurement to described mesuring battary group, and the charging circuit of control simulation switch connection charging circuit and described mesuring battary group;
Second starts module, if for carrying out charging measurement to described mesuring battary group, and the discharge circuit of control simulation switch connection discharge circuit and described mesuring battary group.
9. according to the degradation detecting device in claim 6 to 8 described in any one, it is characterized in that, described test module also comprises:
Sending module, for described default discharge and recharge parameter is sent to battery set management unit, by the discharge and recharge of described battery set management unit controls to described mesuring battary group.
10. according to the degradation detecting device in claim 6 to 8 described in any one, it is characterized in that, described degradation detecting device also comprises:
Display module, for showing described voltage parameter, described current parameters and described cell degradation data on a display screen.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107505518A (en) * | 2017-07-22 | 2017-12-22 | 华映科技（集团）股份有限公司 | Electrical equipment aging assessment based on device current ID |
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