CN104407302A - Automatic testing system for battery equalization module packing - Google Patents
Automatic testing system for battery equalization module packing Download PDFInfo
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- CN104407302A CN104407302A CN201410722950.5A CN201410722950A CN104407302A CN 104407302 A CN104407302 A CN 104407302A CN 201410722950 A CN201410722950 A CN 201410722950A CN 104407302 A CN104407302 A CN 104407302A
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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]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
An automatic testing system for battery equalization module packing comprises a PC (personal computer), an automatic test main control panel, at least one direct-current programmable power supply and a test table for holding equalization module packing panels, wherein multiple equalization modules are connected with the inside of the test table, the automatic test main control panel is electrically connected with the PC, the at least one direct-current programmable power supply and the test table for holding the equalization module packing panels respectively, the automatic test main control panel controls control connection lines used for connection with the test table to be connected and disconnected, whether each equalization module passes a test is judged by testing changes of voltage and currents of each control connection line, and accordingly whether performance of the equalization modules on the packing panels is qualified in different states is tested. The measurement accuracy and efficiency of the automatic testing system in voltage, current and other data are multiplied compared with a traditional manual testing mode, and the quality of ex-factory products can be improved.
Description
Technical field
The present invention relates to battery detecting field, particularly the battery balanced module of one automatic checkout system in groups.
Background technology
Along with country is to the attention of curbing environmental pollution, development clean energy resource electric automobile becomes social current, the biggest factor of restricting current Development of Electric Vehicles is exactly the life-span of the lithium battery group of car load power supply, and between single lithium battery, there is very large difference, the general mode of series connection that uses is packed, the all whole bag of process of discharge and recharge carries out, if this just causes not processing this species diversity between monomer, the life-span of whole bag battery will shorten greatly.Cell balancing produces to improve this problem just.Battery balanced module is the elementary cell of this technology, whole bag electric battery needs the battery balanced module of some to form a complete car load power-supply system to carry out balance charge/discharge, the function that the balance module of present stage mainly possesses increases the overall charging capacity of electric battery, improve cell discharge and recharge balance, improve battery life.
Due to electrokinetic cell active equalization technology ground zero, corresponding checkout equipment is deficienter, particularly balance module correlation detection technology and concrete content measurement in groups, the neither one standards such as test specification, traditional module test method is mainly through testing manually, and each module can relate to some computings, there will be careless mistake unavoidably, test lack of standardization, test event is also incomplete, substandard product is mixed with in the product of very possible test, if such products application is on battery, probably can cause the consequence of some the unknowns, serious meeting causes cell to be drawn partially, thus affect the life-span of FCL battery.Meanwhile, Traditional Man test not only requires a great deal of time and human cost, and is difficult to the final test result of statistical module, for the upgrading of product and development also unfavorable to some extent.Therefore, must perfect balanced module in groups after automatic checkout system, thus allow balance module in battery case, play better effect in groups.
Summary of the invention
The problem that the present invention solves is to provide a kind of battery balanced module automatic checkout system in groups, and the measuring accuracy for data such as voltage and currents is compared Traditional Man test with efficiency aspect and improve several times, is conducive to the outgoing improving product.
For solving the problem, embodiments provide a kind of battery balanced module automatic checkout system in groups, comprise: PC, automatic test master control borad, at least one direct current programmable power supply and place the test board of balance module plate in groups, multiple balance module is connected with in described test board, described automatic test master control borad respectively with PC, at least one direct current programmable power supply, place balance module in groups plate test board electricity connect, and described automatic test master control borad controls the turn-on and turn-off of each bar control line being used for connecting test platform, judge that whether each balance module is by test respectively by the situation of change of the voltage and current on testing and control line, thus whether the performance of each balance module under different conditions detected on plate be in groups qualified.
Optionally, described automatic test master control borad comprises MCU, current detection module, voltage detection module and parameter testing handover module, described MCU is connected with described current detection module, voltage detection module, parameter testing handover module respectively, and described MCU is connected with direct current programmable power supply with PC, controls current detection module by PC, voltage detection module, parameter testing handover module test.
Optionally, the first direct current programmable power supply and the second direct current programmable power supply is comprised.
Optionally, first direct current programmable power supply and the series connection of the second direct current programmable power supply, and one end ground connection of the second direct current programmable power supply, the two ends of described first direct current programmable power supply are all connected with a current detection module and a current sampling resistor, and described current detection module and current sampling resistor are connected in parallel, described current detection module, the other end of current sampling resistor is connected by the battery port that multiple disconnector is different from balance module in groups plate respectively, MCU controls the state of disconnector corresponding to current detection module by parameter testing handover module, utilize the first direct current programmable power supply and the second direct current programmable power supply to form simulated battery in balance module in groups plate to power, described simulated battery is utilized to obtain the corresponding current information of balance module.
Optionally, the BIAS voltage end of one end of described voltage detection module and balance module plate is in groups connected, the other two ends of described voltage detection module are connected by the battery port that multiple disconnector is different from balance module in groups plate respectively, MCU is by controlling the state of corresponding disconnector, utilize the first direct current programmable power supply and the second direct current programmable power supply to form simulated battery in balance module in groups plate to power, utilize described simulated battery to obtain the corresponding information of voltage of balance module.
Optionally, the earth terminal that described second direct current programmable power supply connects is connected by the battery port that multiple disconnector is different from balance module in groups plate respectively.
Optionally, also comprise working power, described working power is automatically test the MCU of master control borad, current detection module and voltage detection module to power.
Optionally, described balance module in groups plate comprises the battery port of several balance modules and several series connection, utilize the disconnector in direct current programmable power supply and automatic test master control borad to form simulated battery between different battery port to power, utilize described simulated battery to realize the various parameter testings of balance module.
Optionally, the test lead on described balance module is connected with each battery port, and the Enable Pin of described balance module is connected with battery port by disconnector, and the BIAS end of described balance module is connected with voltage detection module by isolation voltage.
Optionally, described automatic test master control borad is the serial ports end that TTL receives each direct current programmable power supply by RS485 bus switching.
Compared with prior art, the technical program has the following advantages:
This Auto-Test System utilizes PC, automatically test master control borad automatically to test, easy and simple to handle, measuring accuracy aspect for data such as voltage and currents is compared Traditional Man test and is improve several times, measure the related data of module more accurately, improve the outgoing of product, meet the needs of client, thus finally at prolongation battery life with improve charge and discharge balancing between monomer and play a role.And this battery balanced module in groups automatic checkout system utilize direct current programmable power supply to form simulated battery, can the various different conditions of simulated battery, and multiple battery can be simulated carry out power supply high-accuracy voltage, current detecting, realize the various parameter testing of balance module, complete and greatly shorten a whole set of detection time detected.
Accompanying drawing explanation
Fig. 1 is the modular structure schematic diagram of the battery balanced module automatic checkout system in groups of the embodiment of the present invention;
Fig. 2 is the electrical block diagram of the automatic test master control borad of the embodiment of the present invention;
Fig. 3 is the electrical block diagram of the balance module plate in groups of the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, by specific embodiment, clear, complete description is carried out to technical scheme of the present invention.
Please refer to Fig. 1, for the modular structure schematic diagram of a kind of battery balanced module automatic checkout system in groups of the embodiment of the present invention, comprising: the test board of PC 10, automatically test master control borad 20, two direct current programmable power supplies (comprising the first direct current programmable power supply 41 and the second direct current programmable power supply 42) and placement balance module plate 30 in groups.
Described PC 10 is for being provided with the computing machine of test upper computer software automatically, described PC 10 is connected with the MCU21 automatically testing master control borad 20, utilize described PC 10 can control the testing process of whole battery balanced module automatic checkout system in groups, and show testing process and testing result.
In other embodiments, the hardware control switch on test master control borad 20 automatically can also be utilized to complete the control of battery balanced module automatic checkout system in groups.
In the present embodiment, described battery balanced module in groups automatic checkout system comprises the first direct current programmable power supply 41, second direct current programmable power supply 42, in other embodiments, described battery balanced module in groups automatic checkout system comprises at least one direct current programmable power supply, automatic test master control borad is the DB9 serial port end that TTL receives each direct current programmable power supply by RS485 bus switching, the different address that communication protocol is arranged in advance according to each is distinguished, and is formed thus and controls the independence of each equipment.
In the present embodiment, described automatic test master control borad 20 respectively with PC 10, first direct current programmable power supply 41, second direct current programmable power supply 42 and balance module in groups plate 30 electricity be connected, by controlling direct current programmable power supply, utilize at least one direct current programmable power supply and optionally control the power supply that disconnector can simulate multiple battery node, and can the charging of simulated battery, electric discharge, high pressure, the different using state such as under-voltage, realize the various high-accuracy voltage of balance module, current detecting, a whole set of detection time detected is shortened greatly.
Please refer to Fig. 2, for the electrical block diagram of the automatic test master control borad of the embodiment of the present invention, described automatic test master control borad 20 specifically comprises: MCU21, current detection module 22, voltage detection module 23 and parameter testing handover module 24, described MCU21 is connected with described current detection module 22, voltage detection module 23, parameter testing handover module 24 respectively, and described MCU21 is connected with direct current programmable power supply with PC 10, controls current detection module 22 by PC 10, voltage detection module 23, parameter testing handover module 24 test.
In the present embodiment, described first direct current programmable power supply 41 (E2 namely in Fig. 2) and the series connection of the second direct current programmable power supply 42 (E3 namely in Fig. 2), and one end ground connection of the second direct current programmable power supply 42, the two ends of described first direct current programmable power supply 41 are all connected with a current detection module and a current sampling resistor, and described current detection module and corresponding current sampling resistor are connected in parallel, described current detection module, the other end of current sampling resistor is connected by the battery port that multiple disconnector (K1 ~ K10) is different from balance module in groups plate respectively, the earth terminal PGND that described second direct current programmable power supply 42 connects is connected by the battery port that multiple disconnector (K11 ~ K14) is different from balance module in groups plate respectively, by selecting suitable disconnector, and MCU21 is by controlling the state of disconnector K15 ~ K16 corresponding to current detection module, utilize described first direct current programmable power supply 41 and the second direct current programmable power supply 42 to form simulated battery in balance module in groups plate to power, described simulated battery is utilized to obtain the corresponding current information of balance module, described current information comprises Ivp, Ivm etc.
Simultaneously, the BIAS voltage end of one end of described voltage detection module 23 and balance module plate is in groups connected, the other two ends of described voltage detection module 23 are connected by the battery port that multiple disconnector is different from balance module in groups plate respectively, MCU is by controlling the state of corresponding disconnector, formed after simulated battery powers in balance module in groups plate utilizing the first direct current programmable power supply and the second direct current programmable power supply, described simulated battery is utilized to obtain the corresponding information of voltage of balance module, described information of voltage comprises Vp1, Vm1, Vb, Vp2, Vm2 etc.
In the present embodiment, automatically test master control borad 20 also comprises working power E1, and described working power connects a voltage transformation module, powers for automatically testing the MCU of master control borad, current detection module and voltage detection module.
Please refer to Fig. 2 and 3, described test board is for placing balance module plate 30 in groups, and described balance module in groups plate 30 can place multiple balance module, described balance module in groups plate 30 comprises several balance modules (see the UA1 in figure, UA2, UA3, UB1, UB2, UC1) and several series connection battery port (BAT0, BAT1, BAT2, BAT3, BAT4, BAT5, BAT6, BAT7, BAT8), described battery port is arranged in the two ends of the simulated battery that Fig. 3 connects, test lead on described balance module (comprises VP-I end, VM-I end and GND end) be connected with each battery port, the Enable Pin (EN end) of described balance module is connected with battery port by disconnector, the BIAS end of described balance module is connected with voltage detection module by isolation voltage.Described isolation voltage is the parameter testing handover module 24 that MCU21 controls, and for controlling the simulated battery forming different conditions, and utilizes described simulated battery to test different balance modules.
Due in existing battery balanced test, conventional batteries is used to detect, can not the different conditions of simulated battery at short notice, just corresponding test mode can only can be obtained by long use, this just causes the time of balance module test needs cost oversize, is unfavorable for that balance module is tested and long-term development faster.And in the present embodiment, described power supply is direct current programmable power supply, can by the equilibrium situation under programming simulated battery different conditions, and by the control to automatic test master control borad, utilize at least one direct current programmable power supply can simulate the power supply of multiple battery node, and can the different using states of simulated battery, realize the various high-accuracy voltage of balance module, current detecting, a whole set of detection time detected is shortened greatly.
In the present embodiment, balance module in groups plate 30 has 6 balance modules to be respectively UA1, UA2, UA3, UB1, UB2, UC1, in groups during board test, by the state of the turn-on and turn-off of automatically testing disconnectores all in the MCU control chart 2 in master control borad 20, module is tested one by one.Such as, when testing UA1 module, first MCU controls direct current programmable power supply, open and a voltage of direct current programmable power supply is set, regulate the disconnector K15 in Fig. 2, K16, K4, K10, K11 and K27 ~ K34 is conducting, all the other are off state, K15 is turned off during test balance module energy upload ability, the voltage that Bias measured by conducting K18 switch is designated as Vb, the voltage that conducting K24 measures VP-I is designated as Vp1, the voltage turning off K24 conducting K25 measurement VM-I is again designated as Vm1, turn off K25, conducting conducting K17, measure R1 and R2 two ends size of current and be designated as Ivp and Ivm respectively, then conducting K26 measurement module is enable, measure the change in voltage situation of VP-I and VM-I again, measured value is designated as Vp2 and Vm2, by measuring the Vp1 obtained, Vm1, Vb, Ivp, Ivm, Vp2, Vm2 value, whether normally carry out processing rear judge module energy uploading operation, whether conducting K15 turns off K16 normal according to passing work under step measurement module ability above, finally the data of measurement are sent on host computer and carry out showing and processing.By that analogy, one by one each module is tested, until tested.
In battery balanced module of the present invention in groups automatic checkout system, automatic test master control borad is by being connected with the PC being provided with automatic checkout system host computer, obtain the order that starts to detect and report detection data, the work such as host computer can process data, show, preservation.Auto-Test System master control borad can control the conducting of disconnector, the state of shutoff and the input and output voltage of at least one direct current programmable power supply or the size of electric current, at least one direct current programmable power supply is utilized to simulate the power supply of multiple battery node, and can the different using states of simulated battery, under the data acquisition different conditions that master control borad is gathered by voltage detection module and current detection module, whether the working condition of balance module is normal.
Present invention also offers a kind of detection method adopting above-mentioned battery balanced module automatic checkout system in groups, first carry out system initialization after automatic test master control borad system electrification, wherein comprise house dog initialization, clock initialization, SCI1 initialization, SCI2 initialization, SPI initialization, IIC initialization etc.The initialization of each communication module will carry out initialization according to the baud rate of agreement, and voltage sample module needs to carry out initialization separately before use.Open system break after initialization completes, enter program major cycle.Power on after power supply or load power down, and test board when still normal use, also need to re-power and just can control power supply or loaded work piece, once all need to arrange power supply and load is distance control mode so often test, and be in the state of closedown.After setting up power supply and load, the order of slave computer waiting for the start, wherein initiation command has two kinds, and a kind of is order from host computer, and one is hardware button.When there is one of them, all represent that tester needs to carry out the test of module.When receiving initiation command, the state that first slave computer adjusts its conducting or shutoff by disconnector and relay is the state of test module 1, after the parameter testings such as the BIAS of test module 1 complete, transmission test data is to host computer, reset the test that the conducting of disconnector and relay or off state carry out module 2 again, circulation is until balance module assembly testing completes and reported data successively, finally send the test of data notification host computer to terminate, program enters the state that wait is tested next time.Respectively the bias voltage of module, short circuit, load regulation, efficiency and quiescent dissipation etc. are tested etc. with this rule.
Whether normally current equalization module groundwork can be obtained by test b IAS voltage; the test of bias voltage is carried out after determining normal work; whether carrying out judge module with this, to start the voltage deviation of balanced operation qualified; whether the short-circuit protection ability that short-circuit test can obtain balance module is normal; the test of load regulation and efficiency can understand the ability of module equilibrium, quiescent dissipation test allow tester know whether the quiescent dissipation of balance module conforms with the regulations value.Only have when all test values all reach the scope of setting, module just can be defined as qualified product.
Although the present invention with preferred embodiment openly as above; but it is not for limiting the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; the Method and Technology content of above-mentioned announcement can be utilized to make possible variation and amendment to technical solution of the present invention; therefore; every content not departing from technical solution of the present invention; the any simple modification done above embodiment according to technical spirit of the present invention, equivalent variations and modification, all belong to the protection domain of technical solution of the present invention.
Claims (10)
1. battery balanced module automatic checkout system in groups, it is characterized in that, comprise: PC, automatic test master control borad, at least one direct current programmable power supply and place the test board of balance module plate in groups, multiple balance module is connected with in described test board, described automatic test master control borad respectively with PC, at least one direct current programmable power supply, place balance module in groups plate test board electricity connect, and described automatic test master control borad controls the turn-on and turn-off of each bar control line being used for connecting test platform, judge that whether each balance module is by test respectively by the situation of change of the voltage and current on testing and control line, thus whether the performance of each balance module under different conditions detected on plate be in groups qualified.
2. battery balanced module as claimed in claim 1 automatic checkout system in groups, it is characterized in that, described automatic test master control borad comprises MCU, current detection module, voltage detection module and parameter testing handover module, described MCU is connected with described current detection module, voltage detection module, parameter testing handover module respectively, and described MCU is connected with direct current programmable power supply with PC, controls current detection module by PC, voltage detection module, parameter testing handover module test.
3. battery balanced module as claimed in claim 2 automatic checkout system in groups, is characterized in that, comprises the first direct current programmable power supply and the second direct current programmable power supply.
4. battery balanced module as claimed in claim 3 automatic checkout system in groups, it is characterized in that, first direct current programmable power supply and the series connection of the second direct current programmable power supply, and one end ground connection of the second direct current programmable power supply, the two ends of described first direct current programmable power supply are all connected with a current detection module and a current sampling resistor, and described current detection module and current sampling resistor are connected in parallel, described current detection module, the other end of current sampling resistor is connected by the battery port that multiple disconnector is different from balance module in groups plate respectively, MCU controls the state of disconnector corresponding to current detection module by parameter testing handover module, utilize the first direct current programmable power supply and the second direct current programmable power supply to form simulated battery in balance module in groups plate to power, described simulated battery is utilized to obtain the corresponding current information of balance module.
5. battery balanced module as claimed in claim 4 automatic checkout system in groups, it is characterized in that, the BIAS voltage end of one end of described voltage detection module and balance module plate is in groups connected, the other two ends of described voltage detection module are connected by the battery port that multiple disconnector is different from balance module in groups plate respectively, MCU is by controlling the state of corresponding disconnector, utilize the first direct current programmable power supply and the second direct current programmable power supply to form simulated battery in balance module in groups plate to power, described simulated battery is utilized to obtain the corresponding information of voltage of balance module.
6. battery balanced module as claimed in claim 4 automatic checkout system in groups, is characterized in that, the earth terminal that described second direct current programmable power supply connects is connected by the battery port that multiple disconnector is different from balance module in groups plate respectively.
7. battery balanced module as claimed in claim 2 automatic checkout system in groups, is characterized in that, also comprise working power, and described working power is automatically test the MCU of master control borad, current detection module and voltage detection module to power.
8. battery balanced module as claimed in claim 1 automatic checkout system in groups, it is characterized in that, described balance module in groups plate comprises the battery port of several balance modules and several series connection, utilize the disconnector in direct current programmable power supply and automatic test master control borad to form simulated battery between different battery port to power, utilize described simulated battery to realize the various parameter testings of balance module.
9. battery balanced module as claimed in claim 8 automatic checkout system in groups, it is characterized in that, test lead on described balance module is connected with each battery port, the Enable Pin of described balance module is connected with battery port by disconnector, and the BIAS end of described balance module is connected with voltage detection module by isolation voltage.
10. battery balanced module as claimed in claim 1 automatic checkout system in groups, is characterized in that, described automatic test master control borad is the serial ports end that TTL receives each direct current programmable power supply by RS485 bus switching.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410722950.5A CN104407302B (en) | 2014-12-03 | 2014-12-03 | Battery balanced module automatic checkout system in groups |
| PCT/CN2015/096368 WO2016086891A1 (en) | 2014-12-03 | 2015-12-03 | Automatic detection system for battery balancing module group |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410722950.5A CN104407302B (en) | 2014-12-03 | 2014-12-03 | Battery balanced module automatic checkout system in groups |
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| CN104407302A true CN104407302A (en) | 2015-03-11 |
| CN104407302B CN104407302B (en) | 2019-02-19 |
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| WO (1) | WO2016086891A1 (en) |
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| CN105259494B (en) * | 2015-10-27 | 2018-04-03 | 北京新能源汽车股份有限公司 | The test device and method of battery equalizing circuit |
| US10877099B2 (en) | 2015-10-27 | 2020-12-29 | Beijing Electric Vehicle Co., Ltd. | Method and device for testing battery equalization circuit |
| CN109061492A (en) * | 2018-08-02 | 2018-12-21 | 罗添 | A kind of active syndrome accumulator property update the system |
| CN109085493A (en) * | 2018-09-11 | 2018-12-25 | 山东鲁能智能技术有限公司 | embedded module test system and method |
Also Published As
| Publication number | Publication date |
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| CN104407302B (en) | 2019-02-19 |
| WO2016086891A1 (en) | 2016-06-09 |
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