CN202471930U - Temperature and volume test system for battery system - Google Patents
Temperature and volume test system for battery system Download PDFInfo
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- CN202471930U CN202471930U CN 201220135614 CN201220135614U CN202471930U CN 202471930 U CN202471930 U CN 202471930U CN 201220135614 CN201220135614 CN 201220135614 CN 201220135614 U CN201220135614 U CN 201220135614U CN 202471930 U CN202471930 U CN 202471930U
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Abstract
The utility model relates to a temperature and volume test system for a battery system. The temperature and volume test system comprises a battery management system, monitoring equipment and a constant temperature and humidity test box used for simulating different environment temperature and humidity. The battery management system obtains volume parameters of a battery placed in the constant temperature and humidity test box, and the monitoring equipment processes and displays the volume parameters. The temperature and volume test system for the battery system simulates different environment temperature and humidity through the constant temperature and humidity test box, counts the volume of the battery in various states, and provides accurate data support for estimation of state of charge (SOC) in practical application.
Description
Technical field
The utility model relates to battery test system, particularly relates to a kind of battery system temperature and volume test system.
Background technology
Present most battery and battery management system are mainly used on the electric automobile; And the working environment of electric automobile and state have uncertainty; For example little when big during the power of electric automobile demand; Battery environment temperature of living in has height that the end is arranged, and this brings big difficulty for the measurement of battery capacity.Yet, the conventional battery testing scheme all be carry out the battery set charge/discharge process at normal temperatures, be full of the electric capacity state, the checking of discharge off state.This scheme does not have the influence of account temperature to battery capacity.The major part of electric vehicle is a ferric phosphate lithium cell at present, and environment temperature is to inside battery lithium ion Li ﹢, ferric ion Fe2 ﹢ and phosphate radical PO4
3The concentration affects of-ion is very big, thereby has also just influenced the capacity of battery.In addition, this scheme is too idealized to the estimation of battery dump energy.The dump energy of battery of electric vehicle calculates according to constant-voltage charge, constant-current discharge at present; Automobile can not be a constant-current discharge in use always; Start, go, process discharge power such as parking is all different, can not calculate dump energy with the mode of constant-current discharge.
Above deficiency, it is not enough to cause existing test macro that the performance of electric battery is grasped, and inaccurate to the battery dump energy estimation, test error is bigger, is not suitable for a large amount of productions.
Summary of the invention
Based on this, be necessary to provide a kind of battery system temperature and volume test system of studying the capacity of battery under different temperatures, with accurate more estimating battery capacity.
A kind of battery system temperature and volume test system comprise battery management system, watch-dog and the constant temperature humidity chamber that is used to simulate the varying environment temperature and humidity.Said battery management system obtains the capacity parameter that is placed on the battery in the constant temperature humidity chamber, and said watch-dog processing also shows said capacity parameter.
In a preferred embodiment, described battery system temperature and volume test system also comprise charge-discharge test cabinet that link to each other with battery with battery management system, may command battery charge and discharge current size.
In a preferred embodiment, said watch-dog output comprises the three-dimensional curve of temperature, charge-discharge magnification and battery capacity.
In a preferred embodiment, said watch-dog links to each other with battery management system through the CAN card.
The different environment temperature and humidity is simulated through constant temperature humidity chamber by the battery system temperature and the volume test system of the utility model; Count the capacity of battery under the various states; (State of Charge, estimation SOC) provides the accurate data support for battery charge state in the practical application.
Description of drawings
Fig. 1 is the structure principle chart of battery system temperature and volume test system among the embodiment.
Embodiment
To combine specific embodiment and accompanying drawing that the utility model battery system temperature and volume test system are described in further detail below.
As shown in Figure 1, among the embodiment, battery system temperature and volume test system mainly comprise battery management system 10, watch-dog 20, constant temperature humidity chamber 30 and charge-discharge test cabinet 40.
Wherein, battery management system 10 links to each other with watch-dog 20, charge-discharge test cabinet 40 and battery 50.Wherein, watch-dog 20 links to each other with battery management system 10 through the CAN card, is used to show battery management system 10 detected data.In the present embodiment, battery 50 is an electric battery, links to each other with load 60.
Constant temperature humidity chamber 30 is used to simulate the varying environment temperature and humidity, and battery 50 is placed within it.Charge-discharge test cabinet 40 is used to control the charging current and the discharge current size of battery 50.Watch-dog 20 can show the parameter of constant temperature humidity chamber 30 output temperatures and humidity, and shows parameters such as charge-discharge test cabinet 40 output currents, voltage, electric weight.The parameter variation, the particularly variation of capacity of battery management system 10 real-time monitoring batteries 50 also sends watch-dog 20 to.
Utilize the utility model test macro, can realize three kinds of battery capacity testing schemes:
(1), the scheme of test battery capacity under the various environment temperatures of simulation: utilize constant temperature humidity chamber 30 simulation different environment temperature; For example-30 ℃ ,-20 ℃ ,-10 ℃, 0 ℃, 10 ℃, 20 ℃, 45 ℃, 55 ℃ etc., through the volume change of battery management system 10 checking batteries 50;
(2), the various differences of simulation discharge and recharge the scheme of test battery capacity under the power: the size of regulating 40 chargings of charge-discharge test cabinet and discharge current; For example with the multiplying power discharging of 1C, 3C, 5C, with the multiplying power charging (C represents battery capacity) of 0.3C, 1C, 3C; Change the output power of battery 50, verify the capacity of battery 50 under these states;
(3), simulation various environment files and the different schemes that discharge and recharge test battery capacity under the power: utilize constant temperature humidity chamber 30 simulation different environment temperature simultaneously; Regulate the size of 40 chargings of charge-discharge test cabinet and discharge current simultaneously, through the volume change of battery management system 10 checking batteries 50.
Utilize such scheme that the battery of different manufacturers is tested respectively, watch-dog 20 can be exported the three-dimensional curve that comprises temperature, charge-discharge magnification and battery capacity.This three-dimensional curve has embodied the real performance of battery exactly, can detect and judge battery performance more accurately, and (State of Charge, estimation SOC) provides the accurate data support for battery charge state in the practical application.Measure battery capacity because this test macro is a simulated condition, so its test data can be used as the foundation that SOC revises in the car load actual travel.
The above embodiment has only expressed several kinds of embodiments of the utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to the protection domain of the utility model.Therefore, the protection domain of the utility model patent should be as the criterion with accompanying claims.
Claims (4)
1. battery system temperature and volume test system; Comprise battery management system and watch-dog; It is characterized in that; Comprise that also one is used to simulate the constant temperature humidity chamber of varying environment temperature and humidity, said battery management system obtains the capacity parameter that is placed on the battery in the constant temperature humidity chamber, and said watch-dog processing also shows said capacity parameter.
2. battery system temperature according to claim 1 and volume test system is characterized in that, also comprise charge-discharge test cabinet that link to each other with battery with battery management system, may command battery charge and discharge current size.
3. battery system temperature according to claim 2 and volume test system is characterized in that, said watch-dog output comprises the three-dimensional curve of temperature, charge-discharge magnification and battery capacity.
4. battery system temperature according to claim 1 and volume test system is characterized in that, said watch-dog links to each other with battery management system through the CAN card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220135614 CN202471930U (en) | 2012-03-31 | 2012-03-31 | Temperature and volume test system for battery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220135614 CN202471930U (en) | 2012-03-31 | 2012-03-31 | Temperature and volume test system for battery system |
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| CN202471930U true CN202471930U (en) | 2012-10-03 |
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| CN 201220135614 Expired - Fee Related CN202471930U (en) | 2012-03-31 | 2012-03-31 | Temperature and volume test system for battery system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675699A (en) * | 2013-11-28 | 2014-03-26 | 惠州市亿能电子有限公司 | Safety testing method of battery system |
| CN103713264A (en) * | 2013-12-20 | 2014-04-09 | 中国北方车辆研究所 | Battery management system SOC estimation precision test system and test method |
| CN104749524A (en) * | 2013-12-25 | 2015-07-01 | 上海贯裕能源科技有限公司 | Battery management system power calculation method |
| CN105742736A (en) * | 2016-03-31 | 2016-07-06 | 北京长城华冠汽车科技股份有限公司 | Heat management experiment apparatus and method for power battery of electric vehicle |
| CN110261786A (en) * | 2019-07-02 | 2019-09-20 | 江西安驰新能源科技有限公司 | A kind of capacity test method of rectangular aluminum hull battery core |
| CN112213659A (en) * | 2020-01-20 | 2021-01-12 | 蜂巢能源科技有限公司 | Battery capacity correction method and test system |
| CN114878876A (en) * | 2022-05-06 | 2022-08-09 | 苏州新能先锋检测科技有限公司 | Detection probe for detecting performance of new energy battery piece and detection method thereof |
-
2012
- 2012-03-31 CN CN 201220135614 patent/CN202471930U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675699A (en) * | 2013-11-28 | 2014-03-26 | 惠州市亿能电子有限公司 | Safety testing method of battery system |
| CN103713264A (en) * | 2013-12-20 | 2014-04-09 | 中国北方车辆研究所 | Battery management system SOC estimation precision test system and test method |
| CN104749524A (en) * | 2013-12-25 | 2015-07-01 | 上海贯裕能源科技有限公司 | Battery management system power calculation method |
| CN105742736A (en) * | 2016-03-31 | 2016-07-06 | 北京长城华冠汽车科技股份有限公司 | Heat management experiment apparatus and method for power battery of electric vehicle |
| CN105742736B (en) * | 2016-03-31 | 2018-01-23 | 北京长城华冠汽车科技股份有限公司 | The heat management experimental rig and method of a kind of electric automobile power battery |
| CN110261786A (en) * | 2019-07-02 | 2019-09-20 | 江西安驰新能源科技有限公司 | A kind of capacity test method of rectangular aluminum hull battery core |
| CN112213659A (en) * | 2020-01-20 | 2021-01-12 | 蜂巢能源科技有限公司 | Battery capacity correction method and test system |
| CN112213659B (en) * | 2020-01-20 | 2023-10-13 | 蜂巢能源科技有限公司 | Battery capacity correction method and test system |
| CN114878876A (en) * | 2022-05-06 | 2022-08-09 | 苏州新能先锋检测科技有限公司 | Detection probe for detecting performance of new energy battery piece and detection method thereof |
| CN114878876B (en) * | 2022-05-06 | 2024-08-16 | 苏州新能先锋检测科技有限公司 | New energy battery piece performance detection device and detection method thereof |
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Granted publication date: 20121003 Termination date: 20200331 |
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| CF01 | Termination of patent right due to non-payment of annual fee |