CN108051745A - Test system, method and the computer readable storage medium of BMS - Google Patents
Test system, method and the computer readable storage medium of BMS Download PDFInfo
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- CN108051745A CN108051745A CN201710975770.1A CN201710975770A CN108051745A CN 108051745 A CN108051745 A CN 108051745A CN 201710975770 A CN201710975770 A CN 201710975770A CN 108051745 A CN108051745 A CN 108051745A
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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- 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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Abstract
The present embodiments relate to technical field of battery management, test system, method and the computer readable storage medium of a kind of BMS are disclosed.In the present invention, the test system of battery management system BMS includes measurement and control unit；Measurement and control unit has real-time controller, battery simulator and power supply；Wherein, the Communications Control Interface of real-time controller is connected respectively with the control terminal of the low pressure programmable power supply of power supply, the control terminal of battery simulator, the control terminal of programmable high-voltage power supply of power supply and the control terminal of programmable constant-current source of power supply；The data interaction interface of real-time controller, the output terminal of battery simulator, the feeder ear of low pressure programmable power supply, the output terminal of programmable high-voltage power supply and programmable constant-current source output terminal respectively with BMS electrical communications to be tested.Test system, method and the computer readable storage medium for the BMS that embodiment of the present invention provides operate flexible and convenient, at low cost.
Description
Technical field
The present embodiments relate to technical field of battery management, test system, method and the calculating of more particularly to a kind of BMS
Machine readable storage medium storing program for executing.
Background technology
It is influenced by energy crisis and environmental crisis, electric vehicle has obtained good development with battery industry in recent years.
Due to being limited to current technology, battery there are some following shortcomings, as storage energy is few, short life, connection in series-parallel using problem,
Safety in utilization, battery capacity estimation difficulty etc..In order to improve the monitoring to lithium battery performance, battery is provided corresponding
Protection, battery management system (Battery Management System, BMS) are applied and given birth to.BMS has the profit for improving battery
It with rate, prevents battery from overcharge and overdischarge occur, extends the service life of battery, monitor the multiple functions such as the state of battery.
In order to ensure BMS in practical applications, to the accuracy of battery status monitoring result, thrown in the equipment equipped with BMS
Enter before use, needing to test BMS.The test mode of BMS is using true power battery and telephone testing machine etc. at present
Equipment builds testboard bay, so as to fulfill under battery different working modes, the detection of state.
But inventor has found that at least there are the following problems in the prior art：Although this mode can be completely real
Test environment is simulated, and the accuracy tested under conventional operating mode is also relatively high, but this test mode is also deposited
Very important the problem of：
(1) testboard bay takes up a large area, is expensive in itself；
(2) power battery high-voltage great-current brings security risk to testing crew；
(3) experiment of the maximal works such as over-pressed, under-voltage, failure scene can not be carried out；
(4) it is very high to the required precision of telephone testing machine；
(5) tested BMS types or the mating corresponding power battery of model palpus, very flexible are replaced.
The content of the invention
The test system, method and the computer-readable storage medium that are designed to provide a kind of BMS of embodiment of the present invention
Matter can solve above-mentioned technical problem.
In order to solve the above technical problems, embodiments of the present invention provide a kind of test system of battery management system BMS
System, including the measurement and control unit with real-time controller, battery simulator and power supply；Real-time controller connects with communication control
Mouth and data interactive interface；Power supply has low pressure programmable power supply, programmable high-voltage power supply and programmable constant-current source；Wherein,
The Communications Control Interface of real-time controller respectively with the control terminal of low pressure programmable power supply, the control terminal of battery simulator, can compile
The control terminal of journey high-voltage power supply is connected with the control terminal of programmable constant-current source；The data interaction interface of real-time controller, battery simulation
The output terminal of device, the feeder ear of low pressure programmable power supply, the output terminal of the output terminal of programmable high-voltage power supply and programmable constant-current source
Respectively with BMS electrical communications to be tested.
Embodiments of the present invention additionally provide a kind of test method of battery management system BMS, appoint applied to the present invention
The test system for the battery management system BMS that embodiment of anticipating provides.The test method of battery management system BMS includes：
When the test system of BMS is in running order, the real-time controller in measurement and control unit is according to test command, from default test item
It is searched and the matched test item of test command in catalogue；Real-time controller controls battery simulator according to the test item found
And/or power supply tests BMS to be tested；Wherein, test item catalogue includes：Monomer test item, voltage/current are surveyed
Try item, fault test item, life estimate functional test item.
Embodiments of the present invention additionally provide a kind of computer readable storage medium, are stored with computer program, and count
Calculation machine program can realize that the present invention answers the survey of the battery management system BMS involved in arbitrary embodiment when being executed by processor
Method for testing.
Embodiment of the present invention in terms of existing technologies, provides a kind of test system of battery management system BMS,
In the test system of entire BMS, real-time controller can control battery simulation, low pressure programmable power supply, programmable high-voltage power supply
Voltage, electric current, temperature needed for different operating scene etc. is simulated with programmable constant-current source, so as to realize a variety of maximal works
The simulation test of scene.And since real-time controller price is cheap, small so that the test system of entire BMS is whole
Manufacturing cost substantially reduces, and will not occupy excessive space.In addition, it may be programmed in embodiment of the present invention by using low pressure
Power supply provides the voltage and current needed for work for BMS to be tested, and the voltage and current control so as to export exists
The section of one safety, ensure that the safety of tester in test process, BMS to be tested and test equipment, and can be with
Different voltage is exported according to different BMS types, operation is flexibly simple.
In addition, the test system of BMS further includes test fixture；Test fixture has signal probe；Wherein, signal probe
One end may be programmed electricity with the data interaction interface of real-time controller, the output terminal of battery simulator, low pressure in measurement and control unit respectively
The output terminal connection of the feeder ear in source, the output terminal of programmable high-voltage power supply, programmable constant-current source, the other end of signal probe is with treating
The BMS connections of test.Each device in measurement and control unit and BMS to be tested are connected using the signal probe in test fixture
It is logical, it ensure that connection effect, and when being tested for different BMS, it is only necessary to switching signal probe other end connection
BMS, each device in measurement and control unit only needs connection once so that test process more flexibly letter
Just.
In addition, the test system of BMS further includes control switch, fixing piece and connecting detection part；Control switch, fixing piece and
Connecting detection part is respectively positioned on the control terminal of test fixture control switch and the data interaction interface of real-time controller connects, and control is opened
The output terminal of pass is connected respectively with fixing piece and connecting detection part；Wherein, the test of test fixture is positioned in BMS to be tested
Region, and when needing to BMS tests to be tested, the control that control switch is exported according to the data interaction interface of real-time controller
BMS to be tested is fixed in signal, control fixing piece, control connecting detection part detection measurement and control unit whether with it is to be tested
BMS is connected.When needing to test BMS, control switch is treated according to the control signal from real-time controller, control fixing piece
The BMS of test is fixed so that BMS to be tested will not depart from test zone because of factors such as collisions during the test.
In addition, by controlling detection of the connecting detection part to fixed BMS, it may be determined that whether BMS to be tested connects with test fixture
It is logical.According to above-mentioned connection control mode, the accuracy of test result has been effectively ensured.
In addition, the test system of BMS further includes host computer；Host computer is located in measurement and control unit, logical with real-time controller
Believe control interface connection, for the test command received to be supplied to real-time controller, and complete to BMS's to be tested
After test, test result is shown.Communication interaction is carried out with real-time controller so that tester can by setting host computer
Different tests is inputted by host computer to instruct, and can know the test case of BMS to be tested in real time, realizes human-computer interaction,
The test to BMS is further facilitated.
Description of the drawings
One or more embodiments are illustrated by the picture in corresponding attached drawing, these exemplary theorys
The bright restriction not formed to embodiment, the element for having same reference numbers label in attached drawing are expressed as similar element, remove
Non- have a special statement, and composition does not limit the figure in attached drawing.
Fig. 1 is the schematic diagram of the test system of the battery management system BMS of first embodiment of the invention；
Fig. 2 is the schematic diagram of the test system of the battery management system BMS of second embodiment of the invention；
Fig. 3 is the schematic diagram of the test system of the battery management system BMS of third embodiment of the invention；
Fig. 4 is the flow chart of the test method of the battery management system BMS of four embodiment of the invention；
Fig. 5 is the flow chart of the test method of the battery management system BMS of four embodiment of the invention；
Fig. 6 is the flow chart of the test method of the battery management system BMS of four embodiment of the invention；
Fig. 7 is the flow chart of the test method of the battery management system BMS of four embodiment of the invention.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with attached drawing to the present invention
Each embodiment be explained in detail.However, it will be understood by those skilled in the art that in each embodiment party of the present invention
In formula, in order to make the reader understand this application better, many technical details are proposed.But even if without these technical details
With many variations based on following embodiment and modification, the application technical solution claimed can also be realized.
The first embodiment of the present invention is related to a kind of test systems of battery management system BMS.The test system of the BMS
Mainly it is made of the measurement and control unit 100 with real-time controller 101, battery simulator 102 and power supply 103.Wherein, in real time
Controller 101 have Communications Control Interface and data interactive interface, power supply 103 have low pressure programmable power supply 103-1, can
Program high-voltage power supply 103-2 and programmable constant-current source 103-3.
The connection of each device and specific as shown in Figure 1, real with the connection of BMS200 to be tested in measurement and control unit 100
When controller 101 Communications Control Interface respectively with the control terminal of battery simulator 102, the control of low pressure programmable power supply 103-1
End processed, the control terminal of programmable high-voltage power supply 103-2 are connected with the control terminal of programmable constant-current source 103-3, real-time controller 101
Data interaction interface, the output terminal of battery simulator 102, the feeder ear of low pressure programmable power supply 103-1, programmable high-voltage power supply
The output terminal of 103-2 and the output terminal of programmable constant-current source 103-3 respectively with BMS200 electrical communications to be tested.
It should be noted that the real-time controller used in present embodiment is specifically as follows model SBRIO series
Embedded real-time controller in the case where ensureing overall performance, can also substantially reduce the cost of entire BMS tests system.
In addition, the data interaction interface of real-time controller 101 can be including a variety of, in practical applications, the skill of this field
Art personnel can be arranged as required to, and details are not described herein again.
In addition, the specific choice on battery simulator 102, those skilled in the art can be according to actual test need
Will, it selects suitable model, type, for example in the usage scenario for requiring measuring accuracy high, high accuracy battery can be selected to simulate
Device, so as to the accuracy for guarantee test result.
Compared with prior art, the BMS test systems provided in present embodiment, using being set in battery simulator 102
There is multichannel battery cell, according to test needs, by the cascade system (series, parallel) of regulating cell monomer, voltage value, realize
The test of different test items.Use low pressure programmable power supply 103-1 that can provide the electricity needed for work for BMS200 to be tested
Pressure and electric current, the voltage and current so as to export control in the section of a safety, ensure that in test process and test
The safety of personnel, BMS200 to be tested and test equipment, and different electricity can be exported according to different BMS200 types
Pressure, operation are flexibly simple.The real-time controller 101 of use is specifically as follows the embedded real-time control of model SBRIO series
Device in the case where ensureing overall performance, can also substantially reduce the cost of entire BMS tests system.The programmable height set
Potential source can then export different voltage signals to simulate the electricity in the equipment that BMS200 to be tested in practical application is managed
The voltage signal that pond can export, so as to fulfill the detection of the high pressure monitoring function to BMS200 to be tested.Equally, using can
Programming constant-current source can then export different current signals to simulate the equipment that BMS200 to be tested in practical application is managed
In the current signal that can export of battery, so as to fulfill the detection of the current monitoring function to BMS200 to be tested.
Second embodiment of the present invention is related to a kind of test system of battery management system BMS.Present embodiment is
It is further improved on the basis of one embodiment, specific improvements are：Test work is further included in the test system of BMS
Dress, and signal probe is provided on test fixture, it is specific as shown in Figure 2.
It should be noted that the test fixture 300 provided in present embodiment, is specially a cooperation measurement and control unit 100
Complete the testing tool tested different BMS200 to be tested.
In practical applications, the data interaction interface of real-time controller 101 in measurement and control unit 100, battery simulator 102
Output terminal, the feeder ear of low pressure programmable power supply 103-1, output terminal, the programmable constant-current source 103- of programmable high-voltage power supply 103-2
3 output terminal is directly connected to one end of signal probe 301, and BMS200 to be tested is directly connected to the another of signal probe 301
One end, which can be realized, connects each device in measurement and control unit 100 with BMS200 to be tested, so as to be tested in switching
During BMS200, staff need to only switch BMS200 to be tested, without each connecting line in measurement and control unit 100 is pulled out
It reconnects, greatly facilitates test process.
Specifically, in present embodiment, the connection of BMS200 to be tested and signal probe 301 for convenience, specifically
Can be that connector is set in test zone, the test being put into BMS200 to be tested as tester on test fixture 300
Behind region, just it is directly connected to.
In addition, it is noted that since in practical applications, BMS200 to be tested is placed into test fixture 300
After test zone, due to the collision occurred in test process or other factors BMS200 to be tested can be caused to move,
So as to cause with 301 loose contact of signal detection, influence to test.Therefore, in the test system of the BMS in present embodiment,
Control switch 302, fixing piece (not shown in Fig. 2) and connecting detection part 303 are also provided on test fixture 300, and is controlled
The control terminal of switch 302 is connected with the data interaction interface of real-time controller 101, and the output terminal of control switch 302 is respectively with consolidating
Determine part and connecting detection part 303 connect,.
In the test zone for thering is BMS200 to be tested to be positioned over test fixture 300, and need to BMS200 to be tested
During test, control switch 302 controls fixing piece pair according to the control signal of the data interaction interface of real-time controller 101 output
BMS200 to be tested is fixed, and control connecting detection part 303 detects whether measurement and control unit 100 connects with BMS200 to be tested
It is logical.
It should be noted that the control switch 302 in present embodiment is specifically as follows a Ge Fa islands, fixing piece specifically may be used
Think a compression cylinder, connecting detection part 303 is specifically as follows a signal cylinder, since said elements are that this field is normal
Component, those skilled in the art as needed can rationally be set it, and details are not described herein again.
It limits for example, not formed to technical scheme it should be noted that these are only, actually should
In, control switch 302, connecting detection part 303 and fixing piece can select as needed, not be limited herein.
Third embodiment of the present invention is related to a kind of test system of battery management system BMS.Present embodiment is
One or second embodiment on the basis of be further improved, specific improvements are：It is further included in the test system of BMS
Position machine, which is specifically located in measurement and control unit, is connected with the Communications Control Interface of real-time controller, for that will receive
Test command be supplied to real-time controller, and after completing to the test of BMS to be tested, show test result.
For convenience of description, present embodiment on the basis of the test system of the BMS provided in second embodiment to do
Improvement be specifically described, it is specific as shown in Figure 3.
As shown in figure 3, host computer 400 can also be connected with other external equipments, as in Fig. 3 mouse/keyboard 500, sweep
Code rifle 600, display 700, so as to facilitate tester defeated by input equipments such as mouse/keyboard 500, barcode scanning guns 600
Enter test command, after measurement and control unit 100 completes the test to BMS200 to be tested, be shown by display 700, side
Just tester checks, and during the test, by 700 real time inspection of display time update can also be facilitated to survey life
Order.
In addition, it is necessary to illustrate, in the test system of BMS provided by the invention, the communication control of real-time controller 101
Lan interfaces (LAN interface) and serial communication interface (such as RS232 interface), real-time controller can specifically be included in interface
Input/output I interface (I/O interfaces) can specifically be included in 101 data interaction interface, (AI connects analog input interface
Mouthful), analog output interface circuit (AO interfaces), obtain impulse modulation interface (PWM interfaces), (CAN connects controller local area network's interface
Mouthful).
Specifically, real-time controller 101 with host computer 400, battery simulator 102, programmable high-voltage power supply 103-2 and can
In the connection for programming constant-current source 103-3, specifically pass through the realization of LAN buses and the connection of above-mentioned each device using LAN interface.
The connection of signal probe 301 on real-time controller 101 and test fixture 300, specifically by I/O interfaces, AI interfaces, AO interfaces,
PWM interfaces, CAN interface contact portion corresponding on signal probe 301.
In addition, it is necessary to explanation, in the present embodiment, control switch 302 are specifically connected to I/O interfaces, according to
The control signal of I/O interfaces output, controls fixing piece and connecting detection part 303 to work, concrete implementation process, the skill of this field
Art personnel can be configured according to actual needs, not be limited herein.
The 4th embodiment of the present invention is related to a kind of test method of battery management system BMS, is applied particularly to this hair
The test system of BMS involved in bright arbitrary embodiment.The test method of the BMS includes：Work is in the test system of BMS
When making state, the real-time controller in measurement and control unit is searched from default test item catalogue and ordered with test according to test command
Make matched test item；Real-time controller controls battery simulator and/or power supply to be measured according to the test item found
The BMS of examination is tested；Wherein, test item catalogue includes：Monomer test item, voltage/current test item, fault test item, longevity
Order estimation function test item.
In order to make it easy to understand, below when definite test item is monomer test item, to treat the test operation of test b MS
Exemplified by illustrate, idiographic flow is as shown in Figure 4.
In step 401, real-time controller is according to test command, lookup and test command from default test item catalogue
Matched test item.
In step 402, real-time controller is according to the monomer test item found, and control battery simulator is to be tested
BMS is tested.
It should be noted that monomer test item described in present embodiment can specifically include monomer voltage functional test
Item and monomer temperature functional test item.
Understanding to above two functional test item for convenience, illustrates, real-time controller, battery mould individually below
Intend the test system that the interaction between device, BMS to be tested is referred to the BMS involved in above-mentioned arbitrary embodiment.
When test item is monomer voltage functional test item, real-time controller is surveyed monomer voltage by Communications Control Interface
Information of voltage needed for examination item test is sent to battery simulator, and battery simulator is according to test information to internal multichannel battery
Monomer carries out cascade processing, changes the voltage value of battery cell, and different voltage values is provided for BMS to be tested, controls in real time
The voltage value that device is detected by data interaction interface acquisition BMS to be tested, and the voltage value got and battery are simulated
The voltage value that device provides is compared, and realizes the test to the monomer voltage function of BMS to be tested.
It should be noted that in monomer voltage functional test procedures, battery simulator is according to test information to inside
Multichannel battery cell carries out cascade processing, is specially serial or parallel connection processing, under what circumstances into series connection, which kind of feelings
Parallel connection is carried out under condition, those skilled in the art can rationally be set according to actual needs, and details are not described herein again, does not also do
Limitation.
In addition, the voltage value that real-time controller is detected by data interaction interface acquisition BMS to be tested, and will obtain
To voltage value and battery simulator provide voltage value be compared, realize to the monomer voltage function of BMS to be tested
The detailed process of test can be deposited between the voltage value that BMS to be tested is detected and the voltage value that battery simulator provides
Difference, by judging the size of difference, to determine the accuracy test of current BMS monomers sampling to be tested.
For example, BMS to be tested is in real work, error range existing for permission is within 1mV, and according to above-mentioned
The test method of BMS, after being tested using the test system of above-mentioned BMS BMS to be tested, obtained difference is greater than
1mV then judges that the BMS to be tested is not inconsistent using in the usage scenario for requiring error range within 1mV.
When test item is monomer temperature functional test item, the data interaction interface acquisition of real-time controller is to be tested
The parameter information of temperature sensor in equipment belonging to BMS, such as signal, the temperature range that is able to detect that, control in real time
Parameter information is sent to battery simulator by device by Communications Control Interface, and battery simulator is according to parameter information adjustment output
Resistance value changes the temperature value of battery cell in battery simulator, different temperature values is provided for BMS to be tested, controls in real time
Device processed obtains BMS to be tested by data interaction interface and detects temperature value, and the temperature value got and battery are simulated
The temperature value that device provides is compared, and realizes the test to the monomer temperature function of BMS to be tested.
Compared with prior art, the test method of the BMS in present embodiment utilizes the test of BMS provided by the invention
System, battery simulator need the voltage value, the resistance value that adjust output to sample essence so as to fulfill to BMS monomer pressures according to test
Test, the test of monomer temperature sampling precision of degree.
The 5th embodiment of the present invention is related to a kind of test method of battery management system BMS, in the test of this BMS
In method, test item is voltage/current test item, and idiographic flow is as shown in Figure 5.
In step 501, real-time controller is according to test command, lookup and test command from default test item catalogue
Matched test item.
In step 502, real-time controller is according to the voltage/current test item found, and control power supply is to be measured
The BMS of examination is tested.
It should be noted that voltage/current test item described in present embodiment include high pressure monitoring function test item,
Overvoltage/under-voltage functional test item, current monitoring functional test item.
Understanding to above-mentioned three kinds of functional test items for convenience, illustrates individually below, real-time controller, power supply electricity
Interaction between source, BMS to be tested is referred to the test system of the BMS involved in above-mentioned arbitrary embodiment.
When test item is high pressure monitoring function test item, high pressure is monitored work(by real-time controller by Communications Control Interface
Can the information of voltage tested of test item needs be sent to programmable high-voltage power supply, such as specifically need the voltage value inputted and other
With the relevant information of voltage, it can be specifically configured according to actual conditions, be not limited herein.Programmable high-voltage power supply according to
The voltage value of the information of voltage adjustment output received, different voltage values is provided for BMS to be measured, real-time controller passes through number
BMS to be tested, which is obtained, according to interactive interface detects voltage value, and the voltage value got and programmable high-voltage power supply are provided
Voltage value is compared, and realizes the test to the high pressure monitoring function of BMS to be tested.
Such as if BMS monitors the voltage value of programmable high-voltage power supply output, and the voltage value detected is with may be programmed
As high-voltage power supply output or error within a preset range, then it is assumed that the high pressure monitoring function of BMS can use, and normal.
When test item is overvoltage/under-voltage test item, real-time controller is by Communications Control Interface by over-pressed/under-voltage test
It needs the information of voltage tested and current information is sent to low pressure programmable power supply, low pressure programmable power supply is according to receiving
The voltage value of information of voltage adjustment output, changes the operating voltage value for being supplied to BMS to be tested, is believed according to the electric current received
The current value of breath adjustment output, changes the working current value for being supplied to BMS to be tested, real-time controller is connect by data interaction
Mouth obtains BMS to be tested and detects operating voltage value and working current value, and can by the operating voltage value got and low pressure
The operating voltage value that programming power supply provides is compared, and the working current value value got and low pressure programmable power supply are provided
Working current value compares, and realizes the test of the overvoltage to BMS to be tested/under-voltage function.
The test of overvoltage/under-voltage function can be specifically overvoltage/under-voltage test of not duration, can also be instantaneous electricity
When pressure, curent change, the overvoltage of appearance/under-voltage etc., it is not limited specifically.
When test item is current monitoring functional test item, real-time controller is by Communications Control Interface by current monitoring work(
The current information that energy test item needs are tested is sent to programmable constant-current source, and programmable constant-current source is according to the current information received
The current value of output is adjusted, different current values is provided for BMS to be measured, real-time controller is treated by the acquisition of data interaction interface
The BMS of test detects current value, and by the current value got compared with the current value that programmable constant-current source provides, it is real
Now to the test of the current monitoring function of BMS to be tested.
It should be noted that when testing current monitoring functional test item, it could be provided as BMS to be tested and provide one
Fixed operating voltage, such as 5V, the current value then exported by adjusting programmable constant-current source, to realize to BMS to be tested
Current monitoring function test.
During actual test, tester can rationally be set as needed, not be limited herein.
The sixth embodiment of the present invention is related to a kind of test method of battery management system BMS, in the test of this BMS
In method, test item is fault test item, and idiographic flow is as shown in Figure 6.
In step 601, real-time controller is according to test command, lookup and test command from default test item catalogue
Matched test item.
In step 602, real-time controller controls power supply and/or battery mould according to the fault test item found
Intend device to test BMS to be tested.
Specifically, when test item is fault test item, real-time controller can be incited somebody to action advance by Communications Control Interface
The fault parameter of setting is sent to low pressure programmable power supply, the voltage value that low pressure programmable power supply is exported according to fault parameter adjustment
And/or current value, the variation of the work in every data of the data interaction interface monitor of real-time controller BMS to be tested, and obtain
The changing value of work in every data is taken, realizes the test to the failure function of BMS to be tested.
It should be noted that in practical applications, when test item is fault test item, real-time controller can also pass through
Pre-set fault parameter is sent to battery simulator by Communications Control Interface, and battery simulator adjusts defeated according to fault parameter
The work in every number of the voltage value and/or resistance value gone out, then the data interaction interface monitor of real-time controller BMS to be tested
According to variation, and obtain the changing value of work in every data, realize the test to the failure function of BMS to be tested.
Concrete implementation mode, those skilled in the art can make choice, not be limited herein as needed.
The 7th embodiment of the present invention is related to a kind of test method of battery management system BMS, in the test of this BMS
In method, test item is life estimate functional test item, and idiographic flow is as shown in Figure 7.
In step 701, real-time controller is according to test command, lookup and test command from default test item catalogue
Matched test item.
In a step 702, real-time controller controls battery simulator pair according to the life estimate functional test item found
BMS to be tested is tested.
Specifically, when test item is life estimate functional test item, real-time controller will by Communications Control Interface
Information of voltage needed for life estimate functional test is sent to battery simulator, and battery simulator is according to information of voltage to inside
Multichannel battery cell carries out cascade processing, simulates under different working condition, battery can be defeated in the equipment belonging to BMS to be tested
The voltage value gone out, and voltage value is supplied to BMS to be tested；Under different working condition of the real-time controller according to simulation, treat
The voltage that battery exports in equipment belonging to the BMS of test determines battery life estimated value.
Real-time controller is estimated by the data interaction interface acquisition BMS to be tested battery lifes determined according to voltage value
Value, and battery life that the battery life estimated value got is calculated with the voltage value provided according to battery simulator is estimated
Calculation value is compared, and realizes the test to the life estimate function of BMS to be tested.
In addition, it is noted that in practical applications, tester can also utilize the survey of BMS provided by the invention
Test system carries out equalization function test to BMS to be tested.It can specifically be incited somebody to action by real-time controller by Communications Control Interface
Pre-set parameter information is sent to battery simulator, simulates the imbalance of battery core as needed by battery simulator,
And the corresponding current value of each state is supplied to BMS to be tested, while record the duration of each current value.In real time
Controller is simulated by obtaining the current value and duration that BMS to be tested is recorded, and by the current value got and battery
Device provide current value ratio compared with, the duration that the duration got provides the current value with battery simulator compares,
So as to fulfill the test of equalization function.
The step of various methods divide above, be intended merely to describe it is clear, when realization can be merged into a step or
Some steps are split, are decomposed into multiple steps, as long as including identical logical relation, all protection domain in this patent
It is interior；To either adding inessential modification in algorithm in flow or introducing inessential design, but its algorithm is not changed
Core design with flow is all in the protection domain of the patent.
Eighth embodiment of the invention is related to a kind of computer readable storage medium, is stored with computer program.Computer
Above method embodiment is realized when program is executed by processor.
That is, it will be understood by those skilled in the art that implement the method for the above embodiments be can be with
Relevant hardware is instructed to complete by program, the program storage is in a storage medium, including some instructions making
It obtains an equipment (can be microcontroller, chip etc.) or processor (processor) performs side described in each embodiment of the application
The all or part of step of method.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey
The medium of sequence code.
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific embodiments of the present invention,
And in practical applications, can to it, various changes can be made in the form and details, without departing from the spirit and scope of the present invention.
Claims (10)
1. a kind of test system of battery management system BMS, which is characterized in that including measurement and control unit；The measurement and control unit has
Real-time controller, battery simulator and power supply；
The real-time controller has Communications Control Interface and data interactive interface；
The power supply has low pressure programmable power supply, programmable high-voltage power supply and programmable constant-current source；
Wherein, the Communications Control Interface of the real-time controller respectively with the control terminal of the low pressure programmable power supply, the electricity
The control terminal of pond simulator, the control terminal of the programmable high-voltage power supply are connected with the control terminal of the programmable constant-current source；
The data interaction interface of the real-time controller, the output terminal of the battery simulator, the low pressure programmable power supply
The output terminal of feeder ear, the output terminal of the programmable high-voltage power supply and the programmable constant-current source respectively with it is described to be tested
BMS electrical communications.
2. the test system of battery management system BMS according to claim 1, which is characterized in that the test system of the BMS
System further includes test fixture；
The test fixture has signal probe；
Wherein, one end of the signal probe respectively with the data interaction interface of real-time controller described in the measurement and control unit,
The output terminal of the battery simulator, the feeder ear of the low pressure programmable power supply, the output terminal of the programmable high-voltage power supply, institute
The output terminal connection of programmable constant-current source is stated, the other end of the signal probe is connected with the BMS to be tested.
3. the test system of battery management system BMS according to claim 2, which is characterized in that the test system of the BMS
System further includes control switch, fixing piece and connecting detection part；
The control switch, the fixing piece and the connecting detection part are respectively positioned on the test fixture；
The control terminal of the control switch is connected with the data interaction interface of the real-time controller, the output of the control switch
End is connected respectively with the fixing piece and the connecting detection part；
Wherein, the test zone of the test fixture is positioned in the BMS to be tested, and is needed to described to be tested
When BMS is tested, control signal that the control switch is exported according to the data interaction interface of the real-time controller, described in control
The BMS to be tested is fixed in fixing piece, control the connecting detection part detect the measurement and control unit whether with it is described
BMS connections to be tested.
4. the test system of the battery management system BMS according to claims 1 to 3 any one, which is characterized in that described
The test system of BMS further includes host computer；
The host computer is located in the measurement and control unit, is connected with the Communications Control Interface of the real-time controller, for that will connect
The test command received is supplied to the real-time controller, and after completing to the test of the BMS to be tested, displaying test
As a result.
5. a kind of test method of battery management system BMS, which is characterized in that applied to described in Claims 1-4 any one
Battery management system BMS test system；The test b MS methods of the battery management system include：
When the test system of the BMS is in running order, real-time controller in measurement and control unit is according to test command, from pre-
If test item catalogue in search with the matched test item of the test command；
The real-time controller controls battery simulator and/or power supply to be tested according to the test item found
BMS tested；
Wherein, the test item catalogue includes：Monomer test item, voltage/current test item, fault test item, life estimate work(
It can test item.
6. the test method of battery management system BMS according to claim 5, which is characterized in that the monomer test item
Including monomer voltage functional test item and monomer temperature functional test item；
The real-time controller controls battery simulator and/or power supply to be tested according to the test item found
BMS tested, specifically include：
When the test item is the monomer voltage functional test item, the real-time controller is by Communications Control Interface by institute
It states the information of voltage needed for the test of monomer voltage test item and is sent to the battery simulator, the battery simulator is according to
Test information carries out cascade processing to internal multichannel battery cell, changes the voltage value of the battery cell, is described to be measured
The BMS of examination provides different voltage values, and the real-time controller obtains the BMS to be tested by data interaction interface and detects
The voltage value arrived, and the voltage value that the voltage value got and the battery simulator are provided is compared, and is realized to described
The test of the monomer voltage function of BMS to be tested；
When the test item is the monomer temperature functional test item, the data interaction interface of the real-time controller obtains institute
The parameter information of temperature sensor in the equipment belonging to BMS to be tested is stated, the real-time controller passes through Communications Control Interface
The parameter information is sent to the battery simulator, the electricity that the battery simulator is exported according to parameter information adjustment
Resistance value changes the temperature value of battery cell in the battery simulator, and different temperature values is provided for the BMS to be tested,
The real-time controller obtains the BMS to be tested by data interaction interface and detects temperature value, and the temperature that will be got
Angle value realizes the monomer temperature function to the BMS to be tested compared with the temperature value that the battery simulator provides
Test.
7. the test method of battery management system BMS according to claim 5, which is characterized in that the voltage/current is surveyed
Trying item includes high pressure monitoring function test item, overvoltage/under-voltage functional test item, current monitoring functional test item；
The real-time controller controls battery simulator and/or power supply to be tested according to the test item found
BMS tested, specifically include：
When the test item is the high pressure monitoring function test item, the real-time controller is by Communications Control Interface by institute
State the information of voltage tested of high pressure monitoring function test item needs and be sent to programmable high-voltage power supply, the programmable high-voltage power supply according to
The voltage value of the information of voltage adjustment output received provides different voltage values for the BMS to be measured, described real-time
Controller obtains the BMS to be tested by data interaction interface and detects voltage value, and by the voltage value got and institute
It states the voltage value that programmable high-voltage power supply provides to be compared, realizes the test of the high pressure monitoring function to the BMS to be tested；
When the test item is the overvoltage/under-voltage test item, the real-time controller is by Communications Control Interface by described in
The information of voltage and current information that overvoltage/under-voltage test item needs are tested are sent to the low pressure programmable power supply, the low pressure
Programmable power supply changes according to the voltage value of the information of voltage adjustment output received and is supplied to the BMS to be tested
Operating voltage value, according to receive the current information adjustment output current value, change be supplied to it is described to be tested
The working current value of BMS, the real-time controller obtain the BMS to be tested by data interaction interface and detect work electricity
Pressure value and working current value, and by the operating voltage value that the operating voltage value got and the low pressure programmable power supply provide into
Row compares, by the working current value value got compared with the working current value that the low pressure programmable power supply provides, realization pair
The test of the overvoltage of the BMS to be tested/under-voltage function；
When the test item is the current monitoring functional test item, the real-time controller is by Communications Control Interface by institute
State the current information tested of current monitoring functional test item needs and be sent to programmable constant-current source, the programmable constant-current source according to
The current value of the current information adjustment output received provides different current values for the BMS to be measured, described real-time
Controller obtains the BMS to be tested by data interaction interface and detects current value, and by the current value got and institute
The current value for stating programmable constant-current source offer is compared, and realizes the test of the current monitoring function to the BMS to be tested.
8. the test method of battery management system BMS according to claim 5, which is characterized in that the real-time controller
According to the test item found, battery simulator and/or power supply is controlled to test BMS to be tested, specifically
Including：
When the test item is the fault test item, the real-time controller will be pre-set by Communications Control Interface
Fault parameter is sent to low pressure programmable power supply, the voltage that the low pressure programmable power supply is exported according to fault parameter adjustment
Value and/or current value；And/or pre-set fault parameter is sent to electricity by the real-time controller by Communications Control Interface
Pond simulator, the battery simulator adjust the voltage value and/or resistance value of output according to the fault parameter；
The variation of the work in every data of BMS to be tested described in the data interaction interface monitor of the real-time controller, and obtain
The changing value of work in every data is taken, realizes the test of the failure function to the BMS to be tested.
9. the test method of battery management system BMS according to claim 5, which is characterized in that the real-time controller
According to the test item found, battery simulator and/or power supply is controlled to test BMS to be tested, specifically
Including：
When the test item is life estimate functional test item, the real-time controller is by Communications Control Interface by the longevity
Information of voltage needed for life estimation function test is sent to the battery simulator, and the battery simulator is believed according to the voltage
It ceases and cascade processing is carried out to internal multichannel battery cell, simulate under different working condition, setting belonging to the BMS to be tested
The voltage value that standby middle battery can export, and the voltage value is supplied to the BMS to be tested；The real-time controller root
According under the different working condition of simulation, the voltage that battery exports in the equipment belonging to the BMS to be tested determines battery life
Estimated value；
The battery that the real-time controller is determined by the data interaction interface acquisition BMS to be tested according to the voltage value
Life estimate value, and the battery life estimated value got is calculated with the voltage value provided according to the battery simulator
The estimated value of the battery life gone out is compared, and realizes the test of the life estimate function to the BMS to be tested.
10. a kind of computer readable storage medium, is stored with computer program, which is characterized in that the computer program is located
Manage the test method that the battery management system BMS any one of claim 5 to 9 is realized when device performs.
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| CN111367262A (en) * | 2020-04-17 | 2020-07-03 | 广东戈兰玛汽车系统有限公司 | BMS simulation method and system for new energy automobile rack power system |
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