CN104407302B - Battery balanced module automatic checkout system in groups - Google Patents
Battery balanced module automatic checkout system in groups Download PDFInfo
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- CN104407302B CN104407302B CN201410722950.5A CN201410722950A CN104407302B CN 104407302 B CN104407302 B CN 104407302B CN 201410722950 A CN201410722950 A CN 201410722950A CN 104407302 B CN104407302 B CN 104407302B
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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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- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A kind of battery balanced module automatic checkout system in groups, it include: PC machine, automatic test master control borad, at least direct current programmable power supply and the testboard for placing balance module plate in groups, multiple balance modules are connected in the testboard, the automatic test master control borad respectively with PC machine, an at least direct current programmable power supply, the testboard for placing balance module plate in groups is electrically connected, and turn-on and turn-off of the automatic test master control borad control for each item control line of connecting test platform, judge whether each balance module passes through test respectively by the situation of change of the voltage and current on testing and control line, to which whether performance of each balance module in detection in groups plate under different conditions be qualified.Traditional artificial test is compared using measurement accuracy and efficiency aspect of this system for data such as voltage and currents and improves several times, is conducive to the outgoing for improving product.
Description
Technical field
The present invention relates to battery detecting field, in particular to a kind of battery balanced module automatic checkout system in groups.
Background technique
Attention with country to curbing environmental pollution, developing clean energy resource electric car becomes social current, current to make
The biggest factor of about Development of Electric Vehicles is exactly the service life of the lithium battery group of vehicle power supply, and there is very between single lithium battery
Big difference is generally packed using concatenated mode, and the process of charge and discharge is all that whole packet carries out, if this is resulted in not
This species diversity between monomer is handled, the service life of whole packet battery will greatly shorten.Cell balancing is precisely in order to change
It is apt to this problem and generates.Battery balanced module is the basic unit of this technology, and whole packet battery pack needs a certain number of electricity
Pond balance module forms a complete vehicle power-supply system and carries out balance charge/discharge, what balance module at this stage mainly had
Function is to increase battery pack entirety charging capacity, improves single battery charge and discharge electric equilibrium, improves battery life.
Due to power battery active equalization technology ground zero, corresponding detection device is deficienter, especially balance module
Correlation detection technology and specific test content in groups, none standard such as test specification, traditional module test method are main
By manually testing, and each module can be related to some operations, inevitably will appear careless mistake, test lack of standardization, test
Project is also incomplete, it is more likely that substandard product is mixed in the product of test, if such products application has very much on battery
Some unknown consequences are likely to result in, the serious single battery that will lead to is drawn partially, to influence the service life of FCL battery.Together
When, traditional artificial test not only requires a great deal of time and human cost, but also is difficult to the final test knot of statistical module
Fruit, the upgrading and development for product are also unfavorable.Therefore, it is necessary to perfect balanced module in groups after automatic checkout system,
To allow balance module to play preferably effect in battery case in groups.
Summary of the invention
Problems solved by the invention is to provide a kind of battery balanced module automatic checkout system in groups, for voltage and current
Etc. data measurement accuracy and efficiency in terms of compare it is traditional artificial test improve several times, be conducive to raising product factory matter
Amount.
To solve the above problems, the embodiment of the invention provides a kind of battery balanced module automatic checkout system in groups, packet
Include: PC machine tests master control borad, at least a direct current programmable power supply and the testboard for placing balance module plate in groups, institute automatically
It states and is connected with multiple balance modules in testboard, the automatic test master control borad is programmable with PC machine, at least a direct current respectively
Power supply, the testboard for placing balance module plate in groups are electrically connected, and the automatic test master control borad control is used for connecting test
The turn-on and turn-off of each item control line of platform, are judged respectively by the situation of change of the voltage and current on testing and control line
Whether each balance module passes through test, so that performance of each balance module under different conditions detected on plate in groups is
No qualification.
Optionally, the automatic test master control borad includes MCU, current detection module, voltage detection module and parameter testing
Switching module, the MCU are connected with the current detection module, voltage detection module, parameter testing switching module respectively, and
The MCU is connected with PC machine and direct current programmable power supply, controls current detection module, voltage detection module, parameter by PC machine
Test switching module is tested.
Optionally, including the first direct current programmable power supply and the second direct current programmable power supply.
Optionally, the first direct current programmable power supply and the series connection of the second direct current programmable power supply, and the programmable electricity of the second direct current
The one end in source is grounded, and the both ends of the first direct current programmable power supply are all connected with a current detection module and an electric current is adopted
Sample resistance, and the current detection module and current sampling resistor are connected in parallel, the current detection module, current sampling resistor
The other end by multiple disconnecting switch, the battery port different from balance module in groups plate is connected respectively, MCU passes through ginseng
The states of the corresponding disconnecting switch of number test switching modules control current detection module utilize the first direct current programmable power supply and the
Two direct current programmable power supplies form simulated battery power supply in balance module in groups plate, obtain equilibrium model using the simulated battery
The corresponding current information of block.
Optionally, the BIAS voltage end of one end of the voltage detection module and balance module plate in groups is connected, the electricity
Pressing the other both ends of detection module by multiple disconnecting switch, the battery port different from balance module in groups plate is connected respectively
It connects, MCU utilizes the first direct current programmable power supply and the second direct current programmable power supply by the state of the corresponding disconnecting switch of control
Simulated battery power supply is formed in balance module in groups plate, is obtained the corresponding voltage of balance module using the simulated battery and is believed
Breath.
Optionally, the ground terminal of the second direct current programmable power supply connection by multiple disconnecting switch respectively with equilibrium model
Battery port different in plate is connected block in groups.
It optionally, further include working power, the working power is MCU, the current detection module of automatic test master control borad
It powers with voltage detection module.
Optionally, plate includes several balance modules and several concatenated battery ports, benefit to the balance module in groups
Simulated battery is formed between different battery ports with the disconnecting switch in direct current programmable power supply and automatic test master control borad
Power supply realizes that the various parameters of balance module are tested using the simulated battery.
Optionally, the test lead on the balance module is connected with each battery port, the enable end of the balance module
It is connected by disconnecting switch with battery port, the end BIAS of the balance module passes through isolation voltage and voltage detection module phase
Even.
Optionally, the automatic test master control borad is that TTL is connected to each direct current programmable power supply by RS485 bus switching
Serial ports end.
Compared with prior art, the technical program has the advantage that
This Auto-Test System is tested automatically using PC machine, automatic test master control borad, easy to operate, for voltage with
In terms of the measurement accuracy of the data such as electric current several times are improved compared to traditional artificial test, the more accurate measurement correlation of module
Data improve the outgoing of product, meet the needs of client, to finally extend battery life and improve between monomer
Charge and discharge balancing plays a role.And automatic checkout system utilizes the formation simulation of direct current programmable power supply to this battery balanced module in groups
Battery, can be with the various different conditions of simulated battery, and the multiple batteries of analog are powered high-accuracy voltage, current detecting,
Realize the test of balance module various parameters, the detection time for completing a whole set of detection greatly shortens.
Detailed description of the invention
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.
Specific embodiment
With reference to the accompanying drawing, by specific embodiment, clear, complete description is carried out to technical solution of the present invention.
Referring to FIG. 1, a kind of modular structure of battery balanced module automatic checkout system in groups for the embodiment of the present invention
Schematic diagram, comprising: PC machine 10, automatically test 20, two direct current programmable power supplies of master control borad (including the first direct current programmable power supply
41 and the second direct current programmable power supply 42) and place the testboard of balance module plate 30 in groups.
The PC machine 10 is the computer for being equipped with automatic test upper computer software, the PC machine 10 and automatic test master control
The MCU21 of plate 20 is connected, and can control the inspection of entire battery balanced module automatic checkout system in groups using the PC machine 10
Survey process, and show detection process and testing result.
In other embodiments, automatic test can also be utilized to the control of battery balanced module automatic checkout system in groups
Hardware control switch on master control borad 20 is completed.
In the present embodiment, automatic checkout system includes the first direct current programmable power supply to the battery balanced module in groups
41, the second direct current programmable power supply 42, in other embodiments, automatic checkout system includes extremely to the battery balanced module in groups
A few direct current programmable power supply, automatic test master control borad are that TTL is connected to the programmable electricity of each direct current by RS485 bus switching
The DB9 serial port end in source, communication protocol are distinguished according to each different address set in advance, are consequently formed to each equipment
Independent control.
In the present embodiment, the automatic test master control borad 20 respectively with PC machine 10, the first direct current programmable power supply 41,
Plate 30 is electrically connected in groups for two direct current programmable power supplies 42 and balance module, by controlling direct current programmable power supply, using at least
One direct current programmable power supply and selectively control disconnecting switch can simulate the power supply of multiple battery nodes, and can simulate
The different use states such as the charging of battery, electric discharge, high pressure, under-voltage, realize the various high-accuracy voltages of balance module, current detecting,
So that the detection time for completing a whole set of detection greatly shortens.
Referring to FIG. 2, the electrical block diagram of the automatic test master control borad for the embodiment of the present invention, the automatic test
Master control borad 20 specifically includes: MCU21, current detection module 22, voltage detection module 23 and parameter testing switching module 24, described
MCU21 is connected with the current detection module 22, voltage detection module 23, parameter testing switching module 24 respectively, and described
MCU21 is connected with PC machine 10 and direct current programmable power supply, controls current detection module 22, voltage detection module by PC machine 10
23, parameter testing switching module 24 is tested.
In the present embodiment, the first direct current programmable power supply 41 (i.e. E2 in Fig. 2) and the programmable electricity of the second direct current
Source 42 (i.e. E3 in Fig. 2) series connection, and one end ground connection of the second direct current programmable power supply 42, the first direct current programmable power supply
41 both ends are all connected with a current detection module and a current sampling resistor, and the current detection module and corresponding
Current sampling resistor is connected in parallel, the current detection module, current sampling resistor the other end pass through multiple disconnecting switch (K1
~K10) battery ports different from balance module in groups plate respectively is connected, and the second direct current programmable power supply 42 connects
Ground terminal PGND pass through multiple disconnecting switch (K11~K14) battery port phase different from balance module in groups plate respectively
Connection, by selecting suitable disconnecting switch, and MCU21 passes through the corresponding disconnecting switch K15~K16 of control current detection module
State, the shape in balance module in groups plate using the first direct current programmable power supply 41 and the second direct current programmable power supply 42
It powers at simulated battery, obtains the corresponding current information of balance module using the simulated battery, the current information includes
Ivp, Ivm etc..
Meanwhile the BIAS voltage end of one end of the voltage detection module 23 and balance module plate in groups is connected, the electricity
The other both ends of detection module 23 are pressed to pass through multiple disconnecting switch battery port phase different from balance module in groups plate respectively
Connection, MCU may be programmed by the state of the corresponding disconnecting switch of control using the first direct current programmable power supply and the second direct current
After power supply forms simulated battery power supply in balance module in groups plate, it is electric accordingly that balance module is obtained using the simulated battery
Information is pressed, the information of voltage includes Vp1, Vm1, Vb, Vp2, Vm2 etc..
In the present embodiment, test master control borad 20 further includes working power E1 automatically, and the working power connects an electricity
Conversion module is pressed, for the MCU, current detection module and voltage detection module power supply of automatic test master control borad.
Please refer to Fig. 2 and 3, the testboard is for placing balance module plate 30 in groups, and balance module plate in groups
30 can place multiple balance modules, the balance module in groups plate 30 include several balance modules (see in figure UA1,
UA2, UA3, UB1, UB2, UC1) and several concatenated battery ports (BAT0, BAT1, BAT2, BAT3, BAT4, BAT5,
BAT6, BAT7, BAT8), the battery port is located at the both ends of concatenated simulated battery in Fig. 3, the survey on the balance module
Examination end (including the end VP-I, the end VM-I and the end GND) is connected with each battery port, and the enable end (end EN) of the balance module is logical
It crosses disconnecting switch to be connected with battery port, the end BIAS of the balance module is connected by isolation voltage with voltage detection module.
The isolation voltage is the parameter testing switching module 24 of MCU21 control, for controlling the simulated battery for forming different conditions,
And different balance modules is tested using the simulated battery.
Due to being detected in existing battery balanced test using conventional batteries, electricity cannot be simulated in a short time
The different conditions in pond can only can just obtain corresponding test mode by prolonged use, this results in balance module to test
The time for needing to spend is too long, is unfavorable for balance module and tests faster and long-term development.And in the present embodiment, the electricity
Source is direct current programmable power supply, can be by the equilibrium situation under programming simulated battery different conditions, and by automatic test
The control of master control borad, the power supply of multiple battery nodes can be simulated using at least one direct current programmable power supply, and can be simulated
The different use states of battery realize the various high-accuracy voltages of balance module, current detecting, so that completing the detection of a whole set of detection
Time greatly shortens.
In the present embodiment, balance module have on plate 30 in groups 6 balance modules be respectively UA1, UA2, UA3, UB1,
UB2, UC1 when plate is tested in groups, pass through the conducting of disconnecting switch all in the MCU control figure 2 tested in master control borad 20 automatically
Module is tested one by one with the state of shutdown.Such as when test UA1 module, MCU first controls direct current programmable power supply,
A voltage of direct current programmable power supply is opened and be arranged, disconnecting switch K15, K16, K4, K10, K11 and K27 in Fig. 2 are adjusted
~K34 is conducting, remaining is off state, and K15 is turned off when testing balance module energy upload ability, and conducting K18 switch is surveyed
The voltage of amount Bias is denoted as Vb, and the voltage of conducting K24 measurement VP-I is denoted as Vp1, then turns off the electricity of K24 conducting K25 measurement VM-I
Pressure is denoted as Vm1, turns off K25, conducting conducting K17, and the measurement both ends R1 and R2 size of current is denoted as Ivp and Ivm respectively, is then connected
K26 measurement module is enabled, then measures the voltage change situation of VP-I and VM-I, and measured value is denoted as Vp2 and Vm2, by measuring
Vp1, Vm1, Vb, Ivp, Ivm, Vp2, Vm2 value arrived, whether judgment module energy uploading operation is normal after being handled, conducting
K15 turns off K16 according to passing whether work is normal under above step measurement module ability, finally sends the data of measurement to
It is shown and is handled on the machine of position.And so on, each module is tested one by one, until test is completed.
In battery balanced module of the invention in groups automatic checkout system, it is automatic test master control borad by be equipped with from
The PC machine connection of dynamic detection system host computer, obtains the order for starting detection and reports detection data, host computer can to data into
The work such as row processing, display, preservation.Auto-Test System master control borad can control the on, off of disconnecting switch state and
The input and output voltage of at least one direct current programmable power supply or the size of electric current utilize at least one direct current programmable power supply mould
Intend the power supply of multiple battery nodes, and voltage detection module and electricity can be passed through with the different use states of simulated battery, master control borad
Whether the working condition for flowing balance module under the data acquisition different conditions of detection module acquisition is normal.
The present invention also provides a kind of detection methods using above-mentioned battery balanced module automatic checkout system in groups, automatically
Test main control board system has carried out system initialization after powering on first, wherein including house dog initialization, clock initialization, SCI1
Initialization, SCI2 initialization, SPI initialization, IIC initialization etc..The initialization of each communication module will be according to the wave of agreement
Special rate is initialized, and voltage sample module needs individually to be initialized before use.After the completion of initialization in opening system
It is disconnected, into program major cycle.In order to avoid powering on after power supply or load power down, and test board is the still normal use the case where
Under, be also required to re-power just and can control power supply or loaded work piece, so every test once requires setting power supply and load
For distance control mode, and in the state closed.After setting up power supply and load, slave computer waiting for the start order,
There are two types of middle initiation commands, and one is the orders from host computer, and one is hardware buttons.When one of them occurs, all indicate
Tester needs to carry out the test of module.When having been received by initiation command, slave computer passes through disconnecting switch and relay tune first
The state of its whole conducting or shutdown is the state of test module 1, and survey is sent after the completion of the parameter testings such as BIAS of test module 1
Data are tried to host computer, then reset the conducting of disconnecting switch and relay or the test of off state progress module 2, according to
Until balance module assembly testing completion and reported data, finally send the test of data notification host computer has terminated secondary circulation,
Program enters the state for waiting and testing next time.With this rule respectively to the bias voltage of module, short circuit, load regulation, effect
Rate and quiescent dissipation etc. are tested etc..
Can be obtained whether current equalization module groundwork is normal, and determination carries out after working normally by test b IAS voltage
The test of bias voltage, with this come judgment module start balanced operation voltage deviation it is whether qualified, short-circuit test is available
Whether the short-circuit protection ability of balance module is normal, and the test of load regulation and efficiency will be seen that the ability of module equilibrium,
Quiescent dissipation test allows tester to know whether the quiescent dissipation of balance module meets specified value.Only when all test values
Reach the range of setting, module can just be defined as qualified product.
Although the invention has been described by way of example and in terms of the preferred embodiments, but it is not for limiting the present invention, any this field
Technical staff without departing from the spirit and scope of the present invention, may be by the methods and technical content of the disclosure above to this hair
Bright technical solution makes possible variation and modification, therefore, anything that does not depart from the technical scheme of the invention, and according to the present invention
Technical spirit any simple modifications, equivalents, and modifications to the above embodiments, belong to technical solution of the present invention
Protection scope.
Claims (6)
1. a kind of battery balanced module automatic checkout system in groups characterized by comprising PC machine tests master control borad, extremely automatically
A few direct current programmable power supply and the testboard for placing balance module plate in groups are connected with multiple equilibrium models in the testboard
Block, the automatic test master control borad respectively with PC machine, at least a direct current programmable power supply, the survey for placing balance module plate in groups
Test stand is electrically connected, and conducting and pass of the automatic test master control borad control for each item control line of connecting test platform
It is disconnected, judge whether each balance module passes through survey respectively by the situation of change of the voltage and current on testing and control line
Examination, so that whether performance of each balance module under different conditions detected on plate in groups be qualified；
The automatic test master control borad includes MCU, current detection module, voltage detection module and parameter testing switching module, institute
It states MCU to be connected with the current detection module, voltage detection module, parameter testing switching module respectively, and the MCU and PC
Machine is connected with direct current programmable power supply, controls current detection module, voltage detection module, parameter testing switching module by PC machine
It is tested, to battery balanced module, controlling for automatic checkout system can also be using the hardware on automatic test master control borad in groups
Control switch is completed；
Including the first direct current programmable power supply and the second direct current programmable power supply, the first direct current programmable power supply and the second direct current can
Power supply series connection, and one end ground connection of the second direct current programmable power supply are programmed, the both ends of the first direct current programmable power supply all connect
It is connected to a current detection module and a current sampling resistor, and the current detection module and current sampling resistor parallel connection connect
Connect, the current detection module, current sampling resistor the other end by multiple disconnecting switch respectively with balance module plate in groups
Middle different battery port is connected, and MCU controls the corresponding disconnecting switch of current detection module by parameter testing switching module
State, using the first direct current programmable power supply and the second direct current programmable power supply formed in balance module in groups plate simulation electricity
Pond power supply obtains the corresponding current information of balance module using the simulated battery；
The BIAS voltage end of one end of the voltage detection module and balance module plate in groups is connected, the voltage detection module
In addition by multiple disconnecting switch, the battery port different from balance module in groups plate is connected respectively at both ends, and MCU passes through control
The state for making corresponding disconnecting switch, using the first direct current programmable power supply and the second direct current programmable power supply balance module at
Simulated battery power supply is formed in group plate, obtains the corresponding information of voltage of balance module using the simulated battery.
2. battery balanced module as described in claim 1 automatic checkout system in groups, which is characterized in that second direct current can
Programming the ground terminal of power supply connection, the battery port different from balance module in groups plate is connected respectively by multiple disconnecting switch
It connects.
3. battery balanced module as described in claim 1 automatic checkout system in groups, which is characterized in that further include work electricity
Source, the working power are the MCU, current detection module and voltage detection module power supply of automatic test master control borad.
4. battery balanced module as described in claim 1 automatic checkout system in groups, which is characterized in that the balance module at
Group plate includes several balance modules and several concatenated battery ports, utilizes direct current programmable power supply and automatic test master control
Disconnecting switch in plate forms simulated battery power supply between different battery ports, realizes equilibrium model using the simulated battery
The various parameters of block are tested.
5. battery balanced module as claimed in claim 4 automatic checkout system in groups, which is characterized in that on the balance module
Test lead be connected with each battery port, the enable end of the balance module is connected by disconnecting switch with battery port, institute
The end BIAS for stating balance module is connected by isolation voltage with voltage detection module.
6. battery balanced module as described in claim 1 automatic checkout system in groups, which is characterized in that the automatic test master
Control plate passes through the serial ports end that RS485 bus switching is that TTL is connected to each direct current programmable power supply.
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 CN104407302A (en) | 2015-03-11 |
| CN104407302B true CN104407302B (en) | 2019-02-19 |
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| WO (1) | WO2016086891A1 (en) |
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| CN104407302B (en) * | 2014-12-03 | 2019-02-19 | 杭州协能科技股份有限公司 | Battery balanced module automatic checkout system in groups |
| CN104577228B (en) | 2014-12-25 | 2017-01-11 | 杭州协能科技股份有限公司 | System for detecting and trimming voltage deviation of battery equalization modules |
| 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 |
| CN106970335A (en) * | 2017-05-15 | 2017-07-21 | 惠州市忠邦电子有限公司 | Current Voltage balance performance monitor |
| 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 |
| CN109031151A (en) * | 2018-10-10 | 2018-12-18 | 北京动力京工科技有限公司 | A kind of low cost battery pack string detection device and detection method |
| CN109765498B (en) * | 2019-03-18 | 2024-02-27 | 无锡商业职业技术学院 | Active equalization experimental system and experimental method for power battery of electric automobile |
| CN110308349B (en) * | 2019-07-05 | 2021-12-03 | 科大讯飞股份有限公司 | Charging test method, intelligent charging product and charging test system |
| CN112230166A (en) * | 2020-03-31 | 2021-01-15 | 蜂巢能源科技有限公司 | Module harness on-off test device and method and module offline test system |
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| CN202166676U (en) * | 2011-06-23 | 2012-03-14 | 同济大学 | Novel power battery simulation device |
| CN204256138U (en) * | 2014-12-03 | 2015-04-08 | 杭州协能科技有限公司 | Battery balanced module automatic checkout system in groups |
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| WO2016086891A1 (en) | 2016-06-09 |
| CN104407302A (en) | 2015-03-11 |
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