CN105116342B - A kind of detection method based on battery consistency detection sorter - Google Patents
A kind of detection method based on battery consistency detection sorter Download PDFInfo
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- CN105116342B CN105116342B CN201510514020.5A CN201510514020A CN105116342B CN 105116342 B CN105116342 B CN 105116342B CN 201510514020 A CN201510514020 A CN 201510514020A CN 105116342 B CN105116342 B CN 105116342B
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- charger
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- infrared imager
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- 238000001514 detection method Methods 0.000 title claims abstract description 25
- 238000001931 thermography Methods 0.000 claims abstract description 13
- 238000012360 testing method Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000012216 screening Methods 0.000 claims description 10
- 239000000178 monomer Substances 0.000 claims description 3
- 238000002791 soaking Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000013528 artificial neural network Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Classifications
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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]
Abstract
A kind of battery consistency detection sorting technique and device, belong to battery detection method and device.Detection device includes thermal infrared imager and switch board；Thermal infrared imager is placed in above switch board；Thermal infrared imager receives the infrared ray of testee reflection and is converted to corresponding gray scale, and then the temperature and thermography of object are worth to according to gray scale；Switch board includes control unit and battery mounting unit；Battery mounting unit is connected by conducting wire with control unit；The control unit includes electronic load, charger, microcontroller and multiple selector；Charger and electronic load have multiplexer channel；Microcontroller is connected successively with electronic load, charger, multiple selector；Multiple selector is connected successively with electronic load, charger.Advantage：It is easy to control using simple possible.It can carry out large quantities of calorimetric conformity classifications to test, the possibility of performance change caused by reducing battery pack inconsistency hot in actual use, reduce the soaking management work of battery management system.
Description
Technical field
The present invention relates to a kind of battery detection method and devices, particularly a kind of to detect sorter based on battery consistency
Detection method.
Background technology
Accumulator（Such as super capacitor, lithium battery）As power source, generally it is connected into battery module and uses, but by
In the reason of raw material, equipment, the manufacturing process, even if with a batch of battery, the classical insulations such as internal resistance etc., temperature rise
It will appear inconsistency, will appear over-charging of battery in use or cross the phenomenon that putting.
Therefore, single battery method for evaluating consistency is particularly important.Single battery method for evaluating consistency is at present
The capacity difference of single battery is detected, alternating current-direct current internal resistance is poor, initial voltage difference carries out group gas-mixing screening.Battery is assessed by fuel factor
The rarely seen report of research of consistency.Chinese invention patent application 201110360055.X disclose " it is a kind of based on fuel factor two
Primary cell method for assessing consistency ".The shortcomings that the method is that battery is screened by building neural network, the training time
It is long；" one time one be put into high-low temperature test chamber ", it is impossible to which high-volume is screened.
Invention content
The invention aims to provide a kind of detection method based on battery consistency detection sorter, solve present
When being screened to battery, the problem of once can not in high volume screening.
Solving the equipment scheme of its technical problem is：
For achieving the above object, the present invention is realized using following technical scheme.
A kind of battery consistency detection sorter includes：Thermal infrared imager and switch board；Thermal infrared imager is placed in control
Above cabinet, and switch board can be covered；Thermal infrared imager receives the infrared ray of testee reflection and is converted to corresponding gray scale,
And then the temperature and thermography of object are worth to according to gray scale.
The switch board includes control unit and battery mounting unit；Battery mounting unit passes through conducting wire and control unit
It is connected.
The control unit includes electronic load, charger, microcontroller and multiple selector；Charger and electronic load
All there is multiplexer channel；Microcontroller is connected successively with electronic load, charger, multiple selector；Multiple selector is successively and electric
Son load, charger are connected.
The battery mounting unit includes multiple battery fixed placement positions.
The detection method of detection device based on the above-mentioned hot consistency of assessment battery, includes the following steps：
A1：Multiple single batteries are placed in battery mounting unit；
A2：Microcontroller control multiple selector connection charger related channel program and single battery；Microcontroller setting charging electricity
It flows and charges to single battery；
A3：Thermal infrared imager scans battery mounting unit, generates charging-cell temperature and thermography；
A4：When the machine testing charging current that charges is less than cut-off current, battery is full of, and is disconnected charger and is connected with battery；
A5：The battery temperature and thermography obtained according to thermal infrared imager, classifies to single battery, is screened；
A6：Discharge load channel and single battery are connected, microcontroller sets discharge current to battery discharge；
A7：Thermal infrared imager scanning battery rest area, generates discharge battery temperature and thermography；
A8：When electronic load detection discharge voltage is equal to discharge cut-off voltage, disconnects discharge load and connected with single battery；
A9：According to the battery temperature curve graph that thermal infrared imager generates, the category filter of test unit battery is realized.
Electric current is 1-10C in the step A2 and step A6.
Preferably, to the method for single battery category filter, include the following steps：
B1：According to the temperature profile that thermal infrared imager generates, the temperature maximum and minimum value of single battery is obtained；
B2：Calculate the mean temperature after removal maximum value and minimum value；
B3：Calculate each battery temperature and the temperature deviation of mean temperature；
B4：Foundation temperature deviation, setting screening threshold value and classification thresholds, the classification thresholds include classification number, divide
Class upper threshold and classification thresholds lower limit；
B5：All single battery temperature deviations are judged with screening the size of threshold value, if battery temperature deviation>Screen threshold value,
It jumps in next step；Otherwise, step B9 is jumped to；The single battery temperature deviation includes temperature maximum and minimum value；
B6：The single battery is directly rejected, the hot consistency of the battery is not up to standard；
B7：Calculate the mean temperature of residual monomer battery；
B8：Calculate the temperature deviation of current each battery；
B9：The size of current monolithic battery temperature deviation and classification thresholds bound is judged, if 1 lower limit of classification thresholds<Temperature
Spend deviation<1 upper limit of classification thresholds then incorporates the battery for classification 1 into, otherwise jumps in next step；
B10：If 2 lower limit of classification thresholds<Temperature deviation<2 upper limit of classification thresholds then incorporates the battery for classification 2 into, otherwise
Terminate sifting sort function.
Advantageous effect：As a result of said program, when hot conformity classification test is carried out to single battery, pass through control
The microcontroller regulation and control variable connector of unit connects charger or electronic load.Testee reflection is received using thermal infrared imager
Infrared ray simultaneously converts the temperature of object and the principle of thermography, to observe the temperature change of each single battery charge and discharge process.
Setting screening threshold value and classification thresholds, rejecting temperature deviation are more than the single battery of screening threshold value and will according to classification thresholds range
Remaining single battery incorporates classification into.In this way, observe the temperature difference in single battery charge and discharge process, letter with thermal infrared imager
It is single feasible efficient, large quantities of calorimetric conformity classification tests can be carried out, have reached the purpose of the present invention.
Advantage：The present invention is easy to control using simple possible.Large quantities of calorimetric conformity classification tests can be carried out, are reduced
The possibility of performance change caused by battery pack inconsistency hot in actual use reduces the Thiele tube of battery management system
Science and engineering is made, and is of great practical significance.
Description of the drawings
Fig. 1 is a kind of detection device of hot consistency of assessment battery of the present invention.
Fig. 2 is the structure chart of the switch board of the present invention.
Fig. 3 is the hot consistency detecting method flow chart of the present invention.
Fig. 4 is the method flow diagram of the single battery category filter of the present invention.
Specific embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment 1：The detection device of the assessment hot consistency of battery includes：Thermal infrared imager and switch board；Thermal infrared imager
It is placed in above switch board, and switch board can be covered.Thermal infrared imager can receive the infrared ray of testee reflection and conversion
Into corresponding gray scale, and then it is worth to according to gray scale the temperature and thermography of object.
The switch board includes control unit and battery mounting unit.Battery mounting unit passes through conducting wire and control unit
It is connected；In Fig. 2, same letter is meaning first battery of network label, expression electrical connection, such as battery mounting unit just
The interface A+ of microcontroller in pole A+, control unit and the interface A+ of multiple selector are connected to what is connect.
The control unit includes electronic load, charger, microcontroller, multiple selector.Charger and electronic load
All there is multiplexer channel.Microcontroller is connected successively with electronic load, charger, multiple selector.Multiple selector is successively and electric
Son load, charger are connected.
The battery mounting unit includes multiple battery fixed placement positions, only putting with 9 batteries in the embodiment of the present invention
It for set, but is not limited to 9 batteries and places position, more batteries can be expanded as desired and place position.
Fig. 3 is the detection method of the detection device based on the above-mentioned hot consistency of assessment battery, includes the following steps：
A1：9 single batteries are placed in battery rest area.
A2：Microcontroller control multiple selector connection 9 channels of charger and 9 single batteries, wherein port number can be with
Quantity according to single battery is measured determines.Microcontroller sets charging current 1C, charges to single battery；Wherein：C is put for battery
Electric multiplying power, discharge-rate refer to that battery releases required current value during its rated capacity before the deadline, it is in data
It is equal to the multiple of battery rated capacity in value, is represented with letter C.
A3：Thermal infrared imager scans battery mounting unit, generates rechargeable battery thermography.
A4：When the machine testing charging current that charges is less than 0.1C, battery is full of.Microcontroller disconnects charger and electricity by control
Pond connects.
A5：According to the battery temperature curve graph that thermal infrared imager generates, the category filter of test unit battery is realized.
A6：Connect 9 channels of discharge load and 9 single batteries, microcontroller setting discharge current.
A7：Thermal infrared imager scanning battery rest area, generates thermography.
A8：When electronic load detection discharge voltage is equal to discharge cut-off voltage, disconnects discharge load and connected with single battery.
A9：According to the battery temperature curve graph that thermal infrared imager generates, the category filter of test unit battery is realized.
The step of to single battery category filter, is as follows（Fig. 4）：
B1：According to the temperature profile that thermal infrared imager generates, the temperature maximum and minimum value of single battery is obtained.
B2：Calculate the mean temperature after removal maximum value and minimum value.
B3：Calculate each battery temperature and the temperature deviation of mean temperature.
B4：According to temperature deviation, setting screening threshold value and classification thresholds（Including classification number, the classification thresholds upper limit and divide
Class bottom threshold）.
B5：Judge all single battery temperature deviations（Including temperature maximum and minimum value）Size with screening threshold value,
If battery temperature deviation>Threshold value is screened, is jumped in next step；Otherwise, step B9 is jumped to.
B6：The single battery is directly rejected, the hot consistency of the battery is not up to standard.
B7：Calculate the mean temperature of residual monomer battery.
B8：Calculate the temperature deviation of current each battery.
B9：The size of current monolithic battery temperature deviation and classification thresholds bound is judged, if 1 lower limit of classification thresholds<Temperature
Spend deviation<1 upper limit of classification thresholds then incorporates the battery for classification 1 into, otherwise jumps in next step.
B10:If 2 lower limit of classification thresholds<Temperature deviation<2 upper limit of classification thresholds then incorporates the battery for classification 2 into, no
Then terminate sifting sort function.
It should be understood that for those of ordinary skills, can be improved or converted according to the above description,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (1)
1. a kind of detection method based on battery consistency detection sorter, detection sorter include：Thermal infrared imager and
Switch board；Thermal infrared imager is placed in above switch board, and can cover switch board；Thermal infrared imager receives testee reflection
Infrared ray is simultaneously converted to corresponding gray scale, and then the temperature and thermography of object are worth to according to gray scale；
The switch board includes control unit and battery mounting unit；Battery mounting unit passes through conducting wire and control unit phase
Even；
The control unit includes electronic load, charger, microcontroller and multiple selector；Charger and electronic load all have
There is multiplexer channel；Microcontroller is connected successively with electronic load, charger, multiple selector；Multiple selector is successively and Electronic Negative
It carries, charger is connected；
The battery mounting unit includes multiple battery fixed placement positions；
It is characterized in that：Detection method includes the following steps：
A1：Multiple single batteries are placed in battery mounting unit；
A2：Microcontroller control multiple selector connection charger related channel program and single battery；Microcontroller setting charging current is given
Single battery charges；
A3：Thermal infrared imager scans battery mounting unit, generates charging-cell temperature and thermography；
A4：When the machine testing charging current that charges is less than cut-off current, battery is full of, and is disconnected charger and is connected with battery；
A5：The battery temperature and thermography obtained according to thermal infrared imager, classifies to single battery, is screened；
A6：Discharge load channel and single battery are connected, microcontroller sets discharge current to battery discharge；
A7：Thermal infrared imager scanning battery rest area, generates discharge battery temperature and thermography；
A8：When electronic load detection discharge voltage is equal to discharge cut-off voltage, disconnects discharge load and connected with single battery；
A9：According to the battery temperature curve graph that thermal infrared imager generates, the category filter of test unit battery is realized；
Electric current is 1-10C in the step A2 and step A6；
The method of the single battery category filter, includes the following steps：
B1：According to the temperature profile that thermal infrared imager generates, the temperature maximum and minimum value of single battery is obtained；
B2：Calculate the mean temperature after removal maximum value and minimum value；
B3：Calculate each battery temperature and the temperature deviation of mean temperature；
B4：According to temperature deviation, setting screening threshold value and classification thresholds, the classification thresholds include classification number, classification threshold
It is worth the upper limit and classification thresholds lower limit；
B5：All single battery temperature deviations are judged with screening the size of threshold value, if battery temperature deviation>Threshold value is screened, is redirected
To in next step；Otherwise, step B9 is jumped to；The single battery temperature deviation includes temperature maximum and minimum value；
B6：The single battery is directly rejected, the hot consistency of the battery is not up to standard；
B7：Calculate the mean temperature of residual monomer battery；
B8：Calculate the temperature deviation of current each battery；
B9：The size of current monolithic battery temperature deviation and classification thresholds bound is judged, if 1 lower limit of classification thresholds<Temperature is inclined
Difference<1 upper limit of classification thresholds then incorporates the battery for classification 1 into, otherwise jumps in next step；
B10：If 2 lower limit of classification thresholds<Temperature deviation<The battery is then incorporated into as classification 2, otherwise terminated by 2 upper limit of classification thresholds
Sifting sort function.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510514020.5A CN105116342B (en) | 2015-08-20 | 2015-08-20 | A kind of detection method based on battery consistency detection sorter |
| PCT/CN2015/099120 WO2017028452A1 (en) | 2015-08-20 | 2015-12-28 | Battery consistency detection and classification method and apparatus |
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| CN201510514020.5A CN105116342B (en) | 2015-08-20 | 2015-08-20 | A kind of detection method based on battery consistency detection sorter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105116342B (en) * | 2015-08-20 | 2018-06-15 | 中国矿业大学 | A kind of detection method based on battery consistency detection sorter |
| CN107037365A (en) * | 2016-11-16 | 2017-08-11 | 上海中兴派能能源科技股份有限公司 | A kind of measuring method of power lithium cell electric core |
| CN106772079A (en) * | 2016-12-21 | 2017-05-31 | 远东福斯特新能源有限公司 | The recognition methods of the battery core that failed in electrokinetic cell bag module |
| CN107015152A (en) * | 2017-03-13 | 2017-08-04 | 上海理工大学 | The discrimination method of battery pack inconsistency |
| CN109765497A (en) * | 2017-11-02 | 2019-05-17 | 北京长城华冠汽车科技股份有限公司 | A kind of lithium battery method for group matching |
| CN108627774A (en) * | 2018-05-10 | 2018-10-09 | 安徽雷索信息科技有限公司 | Power battery collecting method and its system |
| CN109884553B (en) * | 2019-03-29 | 2021-06-04 | 中车株洲电力机车有限公司 | Real-time online diagnosis method and system for internal resistance consistency of super-capacitor energy storage power supply |
| CN110412480A (en) * | 2019-07-10 | 2019-11-05 | Oppo广东移动通信有限公司 | Battery screening technique, device and computer storage medium and test macro |
| CN112798972B (en) * | 2020-12-31 | 2022-09-13 | 合肥国轩高科动力能源有限公司 | Method for rapidly evaluating consistency of lithium battery winding cores |
| CN113533995B (en) * | 2021-07-05 | 2023-10-20 | 上海电享信息科技有限公司 | Consistency detection method for power battery |
| CN113805073B (en) * | 2021-09-17 | 2023-11-03 | 合肥国轩高科动力能源有限公司 | Maximum temperature rise assessment method for lithium battery system |
| CN116125325A (en) * | 2022-12-06 | 2023-05-16 | 北汽福田汽车股份有限公司 | Method and device for detecting consistency of battery cells, vehicle and storage medium |
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| JP2008232758A (en) * | 2007-03-19 | 2008-10-02 | Nippon Soken Inc | Detection device for internal state of secondary cell and neural network type estimation device for quantity of state |
| CN101286579B (en) * | 2007-12-25 | 2010-06-02 | 福建省电力试验研究院 | Method of computer matching of valve controlling type accumulator |
| CN101286580B (en) * | 2007-12-25 | 2010-06-02 | 福建省电力试验研究院 | Method of making sets of valve controlling type accumulator |
| CN102364353B (en) * | 2011-11-14 | 2013-10-16 | 北京理工大学 | Method for assessing consistency of secondary battery based on heating effect |
| KR101880762B1 (en) * | 2011-12-02 | 2018-07-20 | 현대모비스 주식회사 | Battery management system and battery management method for vehicle |
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| KR101360178B1 (en) * | 2012-05-30 | 2014-02-11 | 신흥대학산학협력단 | Battery charging system |
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| CN103513190B (en) * | 2013-10-24 | 2015-12-02 | 国家电网公司 | A kind of battery performance conformance test method and system |
| CN104656023B (en) * | 2013-11-22 | 2017-10-03 | 广州汽车集团股份有限公司 | A kind of method and system for evaluating battery cell uniformity |
| CN104614675A (en) * | 2014-12-31 | 2015-05-13 | 普天新能源车辆技术有限公司 | Power battery group consistency detection method and device |
| CN105116342B (en) * | 2015-08-20 | 2018-06-15 | 中国矿业大学 | A kind of detection method based on battery consistency detection sorter |
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| WO2017028452A1 (en) | 2017-02-23 |
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Effective date of registration: 20220418 Address after: 221116 No. 1, Huatai Road, the third industrial park, high tech Industrial Development Zone, Xuzhou City, Jiangsu Province Patentee after: XUZHOU LIREN MONORAIL TRANSPORTATION EQUIPMENT CO.,LTD. Address before: 221116 Research Institute of China University of Mining and Technology, 1 University Road, Xuzhou, Jiangsu Patentee before: CHINA University OF MINING AND TECHNOLOGY |