CN106291392B - A kind of battery dynamic characteristic test method and device - Google Patents
A kind of battery dynamic characteristic test method and device Download PDFInfo
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- CN106291392B CN106291392B CN201610972456.3A CN201610972456A CN106291392B CN 106291392 B CN106291392 B CN 106291392B CN 201610972456 A CN201610972456 A CN 201610972456A CN 106291392 B CN106291392 B CN 106291392B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
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Abstract
The present invention relates to a kind of battery dynamic characteristic test method and devices, comprising: generates testing process file；Host computer controls the charge-discharge magnification of high-precision charger and high precision load to set, successively alternately charge and discharge according to the parameter in flow file；Host computer is acquired in real time by battery management system and monomer battery voltage, total voltage, total current, the temperature data of storage battery group, carries out curve, data form is shown；The analysis to measurement data is completed, test report is generated.The method is easy to operate, versatile, can in a short time quickly, system, comprehensively motivate most of dynamic characteristic of battery, and experimental period is greatly saved.Using the charging and discharging pulse of various durations, and pulse width Normal Distribution is regular, meets the actual use rule of battery, can obtain dynamic characteristic of the battery under actual condition in laboratory environments.
Description
Technical field
The present invention relates to battery technology field more particularly to a kind of battery dynamic characteristic test method and devices.
Background technique
Increasingly depleted and problem of environmental pollution with fossil energy is increasingly sharpened, the full electric drive of clean and environmental protection
Electric car has obtained more and more applications.Most dominant energy source of the vehicle mounted dynamic battery system as electric car,
Operating status directly influences the performance of electric car, is the core component of electric car.Battery system is one extremely complex
System, electrochemical reaction process shows the nonlinear characteristic of height, and the certain reaction mechanisms of inside battery are not yet complete
It verifies entirely.In this case, cell reaction mechanism is relied solely on to study the relevant issues in the field and just seem very difficult,
Such as fuel cell modelling, battery dynamic analysis, cell degradation specificity analysis etc..
Existing test method generallys use constant current charging, constant current electric discharge, constant ambient temperature or meets certain
The rectangle charge and discharge pulse combined of rule is come testing to battery.Main function is that the stable state for distinguishing battery and transient state are filled
The electric discharge course of work.However, power battery not solely works in stable state or transient state charge and discharge in actual driving cycle
Process, actual working condition is more the combination of stable state and transient state charge and discharge, therefore above-mentioned test method can not react
Actual use rule of the battery under dynamic operation condition.And under real work operating condition, the actual operating data of battery is usually simultaneously
Not exclusively include the substantive characteristics of battery, therefore the actual operating data of battery is directly used in test, expected effect is often not achieved
Fruit.
Therefore, the dynamic characteristic of battery is obtained for quick, system, comprehensively, there is an urgent need to propose that one kind can motivate
The battery testing method and device of battery major part dynamic characteristic out.
Summary of the invention
In view of above-mentioned analysis, the present invention is intended to provide a kind of battery dynamic characteristic test method and device, to solve
Existing test method is unable to the problem of actual use rule of the reaction cell under dynamic operation condition.
The purpose of the present invention is mainly achieved through the following technical solutions:
A kind of battery dynamic characteristic test device, which is characterized in that the battery dynamic characteristic test device includes:
Battery pack, battery management system, host computer, controllable electronic load, controllable high-power DC power supply, high/low temperature experiment
Case；Battery management system, high/low temperature experimental box, controllable electronic load, controllable high-power DC power supply control signal end pass through
CAN bus is connected with host computer；
Battery pack is electrically connected with battery management system, controllable electronic load and controllable high-power DC power supply；
The voltage of battery pack and battery management system, temperature sensor are placed in high/low temperature experimental box.
The host computer carries out parameter setting to high-low temperature test chamber by CAN bus, passes through the temperature curve control of setting
The temperature of high-low temperature test chamber processed, the work condition environment used with simulated battery group.
The host computer is communicated by CAN bus and controllable electronic load and controllable high-power DC power supply, passes through normal state
It is distributed discharge current, voltage and the controllable high-power direct current of the pulse test method control controllable electronic load of white noise acoustic property
The charging current in source, voltage；Discharge load of the controllable electronic load as battery；Controllable high-power DC power supply is as battery
Charge power supply.
The host computer obtains test data, including monomer battery voltage, total electricity from battery management system by CAN bus
Pressure, total current, temperature data.
A kind of battery dynamic characteristic test method, which comprises the following steps:
Step S1, supervision test software is configured on host computer, edits testing process, generates testing process file；
Step S2, the voltage of battery pack and battery management system, temperature sensor are placed in high/low temperature experimental box, are led to
It crosses host computer and temperature is set as required experimental temperature；
Step S3, host computer controls high-precision charger and high precision load according to the parameter in flow file to set
Charge-discharge magnification, successively alternately charge and discharge；
Step S4, host computer acquires the simultaneously monomer battery voltage of storage battery group, total electricity by battery management system in real time
Pressure, total current, temperature data carry out curve, data form is shown；
Step S5, host computer completes the analysis to measurement data, generates test report.
The step S1 further comprises:
In the flow file, charge and discharge electric pulse is positive the pulse of state distribution white noise acoustic property, and pulse width meets normal state
Distribution.
The step S3 further comprises:
During the test, if operation troubles occurs in battery pack, host computer provides warning note, and suspends test.
The present invention has the beneficial effect that:
(1) easy to operate, versatile, it can quick in a short time, system, the major part for comprehensively motivating battery
Dynamic characteristic, and experimental period is greatly saved.
(2) the charging and discharging pulse of various durations, and pulse width Normal Distribution rule are used, electricity is met
The actual use rule in pond, can obtain dynamic characteristic of the battery under actual condition in laboratory environments.
Other features and advantages of the present invention will illustrate in the following description, also, partial become from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by written explanation
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
Detailed description of the invention
Attached drawing is only used for showing the purpose of specific embodiment, and is not to be construed as limiting the invention, in entire attached drawing
In, identical reference symbol indicates identical component.
Fig. 1 is the structural schematic diagram of battery dynamic characteristic test device described in the specific embodiment of the invention；
Fig. 2 is the flow chart of battery dynamic characteristic test method described in the specific embodiment of the invention.
Specific embodiment
Specifically describing the preferred embodiment of the present invention with reference to the accompanying drawing, wherein attached drawing constitutes the application a part, and
Together with embodiments of the present invention for illustrating the principle of the present invention.
A specific embodiment according to the present invention, discloses a kind of battery dynamic characteristic test device, as shown in Figure 1,
The battery dynamic characteristic test device includes: battery pack, battery management system, host computer, controllable electronic load, controllable big function
Rate DC power supply, high/low temperature experimental box；Specifically,
The control signal end of battery management system, high/low temperature experimental box, controllable electronic load, controllable high-power DC power supply
It is connected by CAN bus with host computer；
Battery pack is electrically connected with battery management system, controllable electronic load and controllable high-power DC power supply.In battery pack
Comprising several single batteries, the type of battery pack can be lithium ion battery, nickel-metal hydride battery, lead-acid battery, Ni-Cr battery etc.
All kinds of electrochemical cells.Battery of electric vehicle group is generally made of more single batteries.
The operating voltage and temperature of each single battery are to host computer reality in battery management system real-time detection battery pack
When send monomer battery voltage, total voltage, total current, temperature data.Voltage sensor is mounted on the input and output of battery pack
In circuit, for monitoring monomer battery voltage and total voltage.Current sensor is mounted in the input and output loop of battery pack,
For monitoring charging current and discharge current.Temperature sensor is one or more temperature sensors, for monitoring single battery
Or the temperature of battery pack.
Host computer carries out parameter setting to high-low temperature test chamber by CAN bus, is controlled by the temperature curve of setting high
The temperature of low-temperature test chamber, the work condition environment used with simulated battery group.
Host computer is communicated by CAN bus and controllable electronic load and controllable high-power DC power supply, passes through normal distribution
The pulse test method control discharge current of controllable electronic load of white noise acoustic property, voltage and controllable high-power DC power supply
Charging current, voltage.The pulse test method can be with working condition of the simulated battery group when electric vehicle is run.Such as work as electricity
When motor-car suddenly accelerates, battery current increases, and cell voltage reduces.The simulation of this working condition can pass through host computer mould
Intend and testing process file is written.
Host computer by CAN bus from battery management system obtain test data, including monomer battery voltage, total voltage,
Total current, temperature data.
Discharge load of the controllable electronic load as battery.
Charge power supply of the controllable high-power DC power supply as battery.
The model Harding HLT2005P of high/low temperature experimental box, temperature controlling range is -40 DEG C to 75 DEG C in experimentation,
Temperature fluctuation is ± 0.3 DEG C, can satisfy the needs of temperature simulation.High-low temperature test chamber receives host computer hair by CAN bus
Temperature regulating command out, and according to the temperature of heat command automatic adjustment cabinet to setting value.
In the present embodiment, voltage, the temperature sensor of battery pack and battery management system are placed in high/low temperature experimental box,
So as to complete the simulation of battery operating environment well.
A specific embodiment according to the present invention, discloses a kind of battery dynamic characteristic test method, as shown, packet
Include following steps:
Step S1, supervision test software is configured on host computer, edits testing process, generates testing process file.
In order to guarantee accuracy and versatility to battery dynamic analysis, optimal testing scheme is expectation input
Signal can cover all charge/discharge operation operating conditions of battery pack, and motivate voltage of the battery under main charge and discharge operating condition,
Electric current, temperature dynamic rule.The present embodiment proposes the battery testing method with approximate normal distribution white noise acoustic property,
The test method can motivate voltage, electric current, temperature dynamic of the battery under main charge and discharge operating condition in a relatively short period of time
Changing rule, it is ensured that good test effect.
In the present embodiment, charge and discharge process is as follows:
150s charging, 75s are discharged, 75s charges, 150s electric discharge, 75s charging, 225s electric discharge, 150s charges, 375s discharges,
75s charging, 75s are discharged, 150s charges, 75s discharges, 225s charging, 150s electric discharge, 375s charges, 75s discharges, 75s charges,
150s electric discharge, 75s are charged, 225s discharges, 150s charges, 375s electric discharge, 75s charging, 75s discharges, 150s charges, 75s discharges,
225s charging, 150s electric discharge, 225s charging.
The charge and discharge time can flexibly change according to actual needs in above-mentioned test method, as long as charge and discharge electronic pulse width accords with
Close normal distribution.
Environment temperature and charge-discharge magnification can flexibly change according to actual needs in above-mentioned test method.
Step S2, the voltage of battery pack and battery management system, temperature sensor are placed in high/low temperature experimental box, are led to
It crosses host computer and temperature is set as required experimental temperature, and standing 2 hours or more.
Step S3, host computer controls high-precision charger and high precision load according to the parameter in flow file to set
Charge-discharge magnification, by the pulse test method of normal distribution white noise acoustic property, successively alternately charge and discharge.
During the test, if operation troubles occurs in battery pack, host computer provides warning note, and suspends test.
Step S4, host computer acquires the simultaneously monomer battery voltage of storage battery group, total electricity by battery management system in real time
Pressure, total current, temperature data carry out curve, data form is shown.
Since each test phase includes the various workings parameter such as input voltage, electric current, output voltage, electric current, temperature, on
Position machine can obtain the curve graph of each duty parameter, and be shown in supervision test software interface and report.
Step S5, host computer completes the analysis to measurement data, generates test report.
Host computer has the function of Data Analysis Services, and according to the index to be analyzed, automatic fitration goes out valid data, calculates
The end value of the index show that the comprehensive analysis to battery dynamic characteristic is commented according to the weight of test index result and each index
Valence result.
It is and existing electronic in conclusion the embodiment of the invention provides a kind of battery dynamic characteristic test method and device
The advantages of automobile low-voltage electric system scheme is compared, the battery dynamic characteristic test method and device is:
(1) battery dynamic characteristic test method proposed by the present invention is easy to operate, versatile, surveys compared to existing battery
Method for testing, can in a short time quickly, system, comprehensively motivate most of dynamic characteristic of battery, and greatly save
Experimental period.
(2) battery dynamic characteristic test method proposed by the present invention includes the charging and discharging arteries and veins of various durations simultaneously
Punching, and pulse width Normal Distribution rule, this meets the actual use rule of battery, can obtain in laboratory environments
Dynamic characteristic of the battery under actual condition.
It will be understood by those skilled in the art that realizing all or part of the process of above-described embodiment method, meter can be passed through
Calculation machine program is completed to instruct relevant hardware, and the program can be stored in computer readable storage medium.Wherein, institute
Stating computer readable storage medium is disk, CD, read-only memory or random access memory etc..
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of battery dynamic characteristic test device, which is characterized in that the battery dynamic characteristic test device includes:
Battery pack, battery management system, host computer, controllable electronic load, controllable high-power DC power supply, high/low temperature experimental box；
Battery management system, high/low temperature experimental box, controllable electronic load, controllable high-power DC power supply control signal end pass through CAN
Bus is connected with host computer；
Battery pack is electrically connected with battery management system, controllable electronic load and controllable high-power DC power supply；
Voltage, temperature sensor and the battery pack of battery management system are placed in high/low temperature experimental box；
The host computer is communicated by CAN bus and controllable electronic load and controllable high-power DC power supply, passes through normal distribution
The pulse test method control discharge current of controllable electronic load of white noise acoustic property, voltage and controllable high-power DC power supply
Charging current, voltage；Discharge load of the controllable electronic load as battery；Charging of the controllable high-power DC power supply as battery
Power supply.
2. battery dynamic characteristic test device according to claim 1, which is characterized in that
The host computer carries out parameter setting to high-low temperature test chamber by CAN bus, is controlled by the temperature curve of setting high
The temperature of low-temperature test chamber, the work condition environment used with simulated battery group.
3. battery dynamic characteristic test device according to claim 1, which is characterized in that
The host computer by CAN bus from battery management system obtain test data, including monomer battery voltage, total voltage,
Total current, temperature data.
4. a kind of battery dynamic characteristic test method, which comprises the following steps:
Step S1, supervision test software is configured on host computer, edits testing process, generates testing process file, the process
In file, charge and discharge electric pulse is positive the pulse of state distribution white noise acoustic property, and pulse width meets normal distribution；
Step S2, the voltage of battery management system, temperature sensor and battery pack are placed in high/low temperature experimental box, by upper
Temperature is set as required experimental temperature by position machine；
Step S3, host computer controls high-precision charger and high precision load is filled with what is set according to the parameter in flow file
Discharge-rate, successively alternately charge and discharge；
Step S4, host computer acquire and the monomer battery voltage of storage battery group, total voltage, always in real time by battery management system
Electric current, temperature data carry out curve, data form is shown；
Step S5, host computer completes the analysis to measurement data, generates test report.
5. battery dynamic characteristic test method according to claim 4, which is characterized in that the step S3 is further wrapped
It includes:
During the test, if operation troubles occurs in battery pack, host computer provides warning note, and suspends test.
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Families Citing this family (10)
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| CN106842062A (en) * | 2017-03-29 | 2017-06-13 | 广州中国科学院工业技术研究院 | Secondary cell thermal runaway test device and its method of testing |
| CN109270466A (en) * | 2017-07-16 | 2019-01-25 | 南京理工大学 | A kind of dynamic checkout unit and method of battery pack |
| CN107677964B (en) * | 2017-08-09 | 2019-11-22 | 杭州威衡科技有限公司 | A kind of New energy automobile motor battery analog detection method |
| CN107894568B (en) * | 2017-10-10 | 2020-02-04 | 中国科学院电工研究所 | Method for testing pulse working condition of power storage battery for electric automobile |
| CN109471038B (en) * | 2018-11-12 | 2021-08-20 | 芜湖奇达动力电池***有限公司 | Automatic performance test system and test method for power battery pack of electric automobile |
| CN111398829A (en) * | 2019-01-03 | 2020-07-10 | 河南森源重工有限公司 | New energy automobile battery system performance evaluation method |
| CN109783394A (en) * | 2019-03-14 | 2019-05-21 | 上海大学 | A kind of battery management system function test method and test hardware platform |
| CN111707018A (en) * | 2020-04-24 | 2020-09-25 | 广东立佳实业有限公司 | Quick temperature change box based on metal hydride |
| CN113900057B (en) * | 2021-09-09 | 2023-08-29 | 天合光能(宿迁)光电有限公司 | Method for checking, detecting and measuring equipment before and after replacement of test box |
| CN116476693B (en) * | 2023-06-21 | 2023-09-08 | 苏州妙益科技股份有限公司 | Management method and device for automobile battery |
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