CN206975187U - Battery test system - Google Patents
Battery test system Download PDFInfo
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- CN206975187U CN206975187U CN201720689620.XU CN201720689620U CN206975187U CN 206975187 U CN206975187 U CN 206975187U CN 201720689620 U CN201720689620 U CN 201720689620U CN 206975187 U CN206975187 U CN 206975187U
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Abstract
The utility model proposes a kind of battery test system, including：Battery model module；Battery simulator, there is first end and the second end, first end is connected to battery model module, and the second end is connected to battery management system, and battery simulator is transmitted the battery parameter of simulation to battery management system by the connection；Wherein, battery simulator has a monomer voltage input unit, inputted in monomer voltage input unit battery simulator monomer administrative unit voltage and/or monomer administrative unit in single battery core voltage；Battery management system receives battery parameter by the connection with battery simulator, and outputs test result.Pass through the technical solution of the utility model, strengthen the precision of monomer voltage and the control ability to monomer voltage, the variation tendency for being easy to ensure monomer voltage tallies with the actual situation, and conveniently adapts to BMS real works situation to be tested, improves the accuracy and reliability of test result.
Description
【Technical field】
It the utility model is related to cell art, more particularly to a kind of battery test system.
【Background technology】
At present, for distributed BMS (Battery Management System, battery management system), in most use
Portion CAN (Controller Area Network BUS) message simulates single battery core voltage, has carried out to carry out battery testing.
However, in this test, monomer administrative unit voltage and single battery core voltage are all fixed, if BMS is actual
Working condition changes, and is changed equivalent to required test case, and now if still using former fixed monomer
Administrative unit voltage and single battery core voltage, then can not obtain accurate test result.
Therefore, the accuracy of cell testing results how is further lifted, turns into technical problem urgently to be resolved hurrily at present.
【Utility model content】
The utility model embodiment provides a kind of battery test system, it is intended to solves carrying out battery survey in correlation technique
The inaccurate art problem of test result skill, can freely set monomer voltage, to adapt to caused by monomer voltage is fixed during examination
BMS real works situations is tested.
The battery test system of the utility model embodiment, including：Battery model module；Battery simulator, have first
End and the second end, the first end are connected to the battery model module, and second end is connected to battery management system, described
Battery simulator is transmitted the battery parameter of simulation to the battery management system by the connection；Wherein, the battery simulation
Utensil has monomer voltage input unit, and the monomer administrative unit of the battery simulator is inputted in the monomer voltage input unit
Single battery core voltage in voltage and/or monomer administrative unit；The battery management system by with the battery simulator
Connection receives the battery parameter, and outputs test result.
In the utility model above-described embodiment, alternatively, the battery model module, the battery simulator and described
Battery management system forms closed loop connection, wherein, test described in the battery management system to the battery model module transfer
As a result.
In the utility model above-described embodiment, alternatively, the test result includes temperature parameter, state-of-charge and electricity
Flow one or more of parameter.
In the utility model above-described embodiment, alternatively, the battery model module includes the pole for simulated battery
Hold the extreme working model module of working condition.
In the utility model above-described embodiment, alternatively, the extreme working model module includes monomer Short-way model
One or more in module, monomer open circuit model module, the excessive model module of sampled voltage and monomer voltage catastrophic model module
It is individual.
In the utility model above-described embodiment, alternatively, the battery model module is also included for simulated battery
Normal operation condition normal work model module.
In the utility model above-described embodiment, alternatively, the battery model module also includes：Models switching switchs,
The models switching switch has the first closing position and the second closing position, first closing position and second closure
Position corresponds to the extreme working model module and the normal work model module respectively.
In the utility model above-described embodiment, alternatively, in addition to：Reseting module, it is respectively connecting to the battery mould
Pattern block, the battery simulator and the battery management system, and by connecting to the battery model module, the battery
One or more of simulator and the battery management system send reset signal.
In the utility model above-described embodiment, alternatively, the battery model module includes being used to adjust temperature parameter
Temperature control modules.
In the utility model above-described embodiment, alternatively, the battery model module is also included for management parameters
Global parameter management module.
Above technical scheme, in correlation technique when carrying out battery testing monomer voltage fix caused by test result
The inaccurate art problem of skill, can freely set monomer voltage, to adapt to BMS real works situation to be tested.
Specifically, can be that battery simulator sets monomer voltage input unit, it is straight by monomer voltage input unit
The voltage of corresponding monomer administrative unit and/or single battery core in change battery model module is connect, so, can be by after change
The monomer voltage for being more suitable for BMS real work situations assigns battery model module, and battery simulation is transferred by battery management system
The battery parameter that device assigns battery model module is tested.
By the technical scheme, monomer voltage can be easily controlled, specifically, can be achieved once to sexually revise all monomers
Sampled voltage, the sampled voltage for arbitrarily changing each monomer administrative unit, the sampled voltage etc. for arbitrarily changing each battery core, strengthen
The precision of monomer voltage and the control ability to monomer voltage, the variation tendency for being easy to ensure monomer voltage meet actual feelings
Condition, BMS real works situation is conveniently adapted to be tested, improve the accuracy and reliability of test result.
【Brief description of the drawings】
, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the utility model, right
For those of ordinary skill in the art, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings
Its accompanying drawing.
Fig. 1 shows the block diagram of the battery test system of one embodiment of the present utility model；
Fig. 2 shows the operating diagram of the battery test system of one embodiment of the present utility model；
Fig. 3 shows the schematic diagram at the state of a control machine interface of one embodiment of the present utility model；
Fig. 4 shows the schematic diagram at the PC control interface of one embodiment of the present utility model；
Fig. 5 shows the circuit diagram of the battery model module of one embodiment of the present utility model.
【Embodiment】
In order to be better understood from the technical solution of the utility model, the utility model embodiment is carried out below in conjunction with the accompanying drawings
It is described in detail.
It will be appreciated that described embodiment is only the utility model part of the embodiment, rather than whole implementation
Example.Based on the embodiment in the utility model, those of ordinary skill in the art are obtained under the premise of creative work is not made
The all other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1 shows the block diagram of the battery test system of one embodiment of the present utility model.
As shown in figure 1, the battery test system 100 of the utility model embodiment, including：Battery model module 102；Battery
Simulator 104, there is first end and the second end, the first end is connected to the battery model module 102, and second end connects
Battery management system 106 is connected to, the battery parameter that the battery simulator 104 is simulated by the connection is transmitted to battery management system
System 106, wherein, the battery simulator 104 has monomer voltage input unit 1042, the monomer voltage input unit 1042
Single battery core voltage in the monomer administrative unit voltage and/or monomer administrative unit of the middle input battery simulator 104；Institute
State battery management system 106 and the battery parameter is received by the connection with the battery simulator 104, and export test knot
Fruit.
Above technical scheme, in correlation technique when carrying out battery testing monomer voltage fix caused by test result
The inaccurate art problem of skill, can freely set monomer voltage, to adapt to BMS real works situation to be tested.
Specifically, it can be that battery simulator 104 sets monomer voltage input unit 1042, be inputted by monomer voltage
Device 1042 directly changes the voltage of corresponding monomer administrative unit and/or single battery core in battery model module 102, so,
The monomer voltage for being more suitable for BMS real work situations after change can be assigned to battery model module 102, by battery management
The battery parameter that system 106 transfers the imparting battery model of battery simulator 104 module 102 is tested.
By the technical scheme, monomer voltage can be easily controlled, specifically, can be achieved once to sexually revise all monomers
Sampled voltage, the sampled voltage for arbitrarily changing each monomer administrative unit, the sampled voltage etc. for arbitrarily changing each battery core, strengthen
The precision of monomer voltage and the control ability to monomer voltage, the variation tendency for being easy to ensure monomer voltage meet actual feelings
Condition, BMS real works situation is conveniently adapted to be tested, improve the accuracy and reliability of test result.
The battery test system 100 also has following technical characteristic：
In the utility model above-described embodiment, alternatively, the battery model module 102, the battery simulator 104
Closed loop is formed with the battery management system 106 to connect, wherein, the battery management system 106 is to the battery model module
The 102 transmission test results.
Battery model module 102 can carry out closed loop regulation according to the feedback of battery management system 106, ensure battery simulation
The output accuracy of device 104, such as, it is 3950mV to set some output channel voltage, because the pressure drop of wire harness length thickness is different,
It is inconsistent with desired value 3950mV so as to cause the actual measurement voltage on battery management system 106 to be less than 3950mV.This
When, the actual measured value of battery management system 106 can be gathered in real time, then 3950mV is compensated accordingly, to reach the phase
Prestige value 3950mV, complete closed-loop control.
In the utility model above-described embodiment, alternatively, the test result includes temperature parameter, state-of-charge and electricity
Flow one or more of parameter.
Temperature parameter, state-of-charge and current parameters etc. can be fed back to battery model in the lump by battery management system 106
Module 102, foundation is provided for the closed loop regulation of battery model module 102, conveniently adapts to actual conditions, can be to battery simulator
104 actual output voltage carries out back production, is then contrasted in real time with desired value, increases or reduce offset, ensures real
The monomer voltage precision of border output so that the output accuracy of battery simulator 104 is controllable.Certainly, test result is not limited to above-mentioned
Temperature parameter, state-of-charge and current parameters, in addition any desired value to battery model module 102 can also be included
Influential parameter, so that battery model module 102 can be according to the parameter adjustment desired value.
In the utility model above-described embodiment, alternatively, the battery model module 102 is included for simulated battery
Normal operation condition normal work model module.
In the utility model above-described embodiment, alternatively, the battery model module 102 is included for simulated battery
The extreme working model module of extreme working condition, wherein, the extreme working model module include monomer Short-way model module,
One or more of monomer open circuit model module, the excessive model module of sampled voltage and monomer voltage catastrophic model module.
That is, both can with the normal operation of simulated battery, can also simulated battery extreme working condition, such as
Monomer short circuit, monomer open circuit, excessive, the monomer voltage mutation of sampled voltage etc., improve the scope of test.Build the battery of complexity
Model, it can also be ensured that for battery management system 106 in course of normal operation, each battery core can be according to actual SOC (charged shapes
State), actual charging and discharging currents size, the factor such as temperature correctly changed, so as to find ND problem.Certainly,
Extreme working model module include but is not limited to it is above-mentioned several, can also include other it is any be capable of simulated battery certain is extreme
The module of working condition.
In the utility model above-described embodiment, alternatively, the battery model module 102 also includes：Models switching is opened
Close, being connected to the models switching switch has the first closing position and the second closing position, first closing position and institute
State the second closing position and correspond to the extreme working model module and the normal work model module respectively.Pass through models switching
Switch can easily select to use extreme working model module or normal work model module, to meet actual test need
Ask.
Battery model module is further described below.
It is a mathematical modeling, mainly comprising global parameter management such as capacity, initial SOC, reset signal, module numbers
Module, temperature control modules, module iteration core algorithm module, output modular converter, according to the module number of each project,
Single battery core number and battery core detail parameters, can accurate simulated battery authenticity.Loss judge module in Fig. 2, is used for
Simulated battery genuine property, implementation method are as follows：
Temperature>T_max||Temperature<T_min||Capacity>C_max||Capacity<0||
Damage=1＆Reset=0
It is main to influence single battery core SOC, OCV (open-circuit voltage) and Voltage (voltage) after realizing the function.
SOC computing modules in Fig. 2, calculate for calculating OCV, Voltage and SOC next time, and sentence as loss
The basis for estimation of disconnected module, current integration method has been used as core algorithm, i.e.,
SOC=SOC_init+I*dt/C/3600
I in formula is the electric current for flowing into certain single battery core, and C represents nominal battery core capacity, and SOC_init represents initial SOC
Value.Internal resistance of cell Ri participates in OCV and Voltage calculating, and this needs the actual mapping curve of reference temperature(TR) and internal resistance.Temperature
Control module is mainly judged according to the electric current and time that flow into battery core.
OCV computing modules are an important modules, according to the corresponding OCV of the SOC lookup of calculating, when OCV calculating
Out, the purpose of Voltage calculating is reached further according to electric current, the internal resistance of cell, temperature can.
Flexibly and fast change the output voltage of battery simulator it is necessary to by the state of a control machine shown in Fig. 3
PC control interface in StateFlow (graphical tool of finite state machine) state stream and Fig. 4.Specifically, BMS's
In test process, if it is desired to all monomer voltages are quickly changed into 4250mV from initial 3800mV in AC charging pattern,
Purpose is completely filled so as to reach, then can enters accommodating control using Fig. 3.
If it is intended to setting first CSC voltage to be generally less than other CSC voltages, passive equalization function is verified, can also
Only change the battery core voltage of some CSC voltage or any several monomers, PC control interface in Fig. 4 using it
Carry out input operation.
If it is intended to non-incident special circumstances in simulation BMS real processes, such as monomer short circuit, monomer open circuit, sampling
Voltage is excessive, monomer voltage is mutated etc., the input operation of PC control interface progress phase parameter that can also be in Fig. 4, from
And test scope is lifted, improve BMS reliability.
In the utility model above-described embodiment, alternatively, in addition to：Reseting module, it is respectively connecting to the battery mould
Pattern block 102, the battery simulator 104 and the battery management system 106, and by connecting to the battery model module
102nd, one or more of described battery simulator 104 and the battery management system 106 send reset signal, multiple to facilitate
Bit manipulation, increase test convenience.Certainly, reseting module can also be arranged in battery model module 102, for battery model
Module 102 is resetted when needed according to the test result of battery management system 106.
Fig. 5 shows the circuit diagram of the battery model module of one embodiment of the present utility model.
As shown in figure 5, there are the temperature control modules and and temperature for being used for adjusting temperature parameter in battery model module 102
The global parameter management module for management parameters of control module connection.
Wherein, temperature control modules can be carried out according to the temperature parameter in the test result from battery management system 106
Temperature adjusts so that battery model module 102 it is determined that during desired value institute according to temperature parameter and the reality of battery management system 106
The temperature parameter on border is consistent.
The parameter that global parameter management module is managed includes battery capacity, initial SOC, reset signal, module number etc.,
Global parameter management module can be used for the initial setting up of parameter.
Also there is module computing module and output modular converter, output modular converter is connected in battery model module 102
Temperature control modules, for the signal for inputting this module to be separated according to type, further to carry out the iterative calculation of module,
And module computing module is connected to output modular converter, for the iterative calculation of module, can be carried out according to the parameter of initial setting up
Calculate, to provide required battery model for battery simulator.
Further, since battery management system 106 is by test result closed loop feedback to battery model module 102, battery model
The global parameter management module of module 102 can be also used for being adjusted the parameter of initial setting up according to the test result, from
And battery working model is further corrected, it is more applicable for the real work situation of battery management system 106, ensure battery
The output accuracy of simulator 104 and the accuracy of final testing result.
The technical solution of the utility model is described in detail above in association with accompanying drawing, by the technical solution of the utility model,
The precision of monomer voltage and the control ability to monomer voltage are strengthened, the variation tendency for being easy to ensure monomer voltage meets reality
Situation, BMS real works situation is conveniently adapted to be tested, improve the accuracy and reliability of test result.
The term used in the utility model embodiment is only merely for the purpose of description specific embodiment, and is not intended to
Limit the utility model." one kind " of singulative used in the utility model embodiment and appended claims,
" described " and "the" are also intended to including most forms, unless context clearly shows that other implications.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, represent
There may be three kinds of relations, for example, A and/or B, can be represented：Individualism A, while A and B be present, individualism B these three
Situation.In addition, character "/" herein, it is a kind of relation of "or" to typically represent forward-backward correlation object.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements done etc., the utility model should be included in
Within the scope of protection.
Claims (10)
- A kind of 1. battery test system, it is characterised in that including：Battery model module；Battery simulator, has first end and the second end, and the first end is connected to the battery model module, second end Battery management system is connected to, the battery simulator is transmitted the battery parameter of simulation to the battery management by the connection System；Wherein, the battery simulator has monomer voltage input unit, and the electricity is inputted in the monomer voltage input unit Single battery core voltage in the monomer administrative unit voltage and/or monomer administrative unit of pond simulator；The battery management system receives the battery parameter by the connection with the battery simulator, and exports test knot Fruit.
- 2. battery test system according to claim 1, it is characterised in that the battery model module, the battery mould Intend device to connect with battery management system formation closed loop, wherein, the battery management system passes to the battery model module The defeated test result.
- 3. battery test system according to claim 2, it is characterised in that the test result includes temperature parameter, lotus One or more of electricity condition and current parameters.
- 4. battery test system according to any one of claim 1 to 3, it is characterised in that the battery model module Extreme working model module including the extreme working condition for simulated battery.
- 5. battery test system according to claim 4, it is characterised in that the extreme working model module includes monomer In Short-way model module, monomer open circuit model module, the excessive model module of sampled voltage and monomer voltage catastrophic model module It is one or more.
- 6. battery test system according to claim 4, it is characterised in that the battery model module also includes being used for mould Intend the normal operation condition normal work model module of battery.
- 7. battery test system according to claim 6, it is characterised in that the battery model module also includes：Models switching switchs, and the models switching switch has the first closing position and the second closing position, first closure Position and second closing position correspond to the extreme working model module and the normal work model module respectively.
- 8. battery test system according to any one of claim 1 to 3, it is characterised in that also include：Reseting module, the battery model module, the battery simulator and the battery management system are respectively connecting to, and led to Connection is crossed to send again to one or more of the battery model module, the battery simulator and described battery management system Position signal.
- 9. battery test system according to any one of claim 1 to 3, it is characterised in that the battery model module Including the temperature control modules for adjusting temperature parameter.
- 10. battery test system according to claim 9, it is characterised in that the battery model module also includes being used for The global parameter management module of management parameters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720689620.XU CN206975187U (en) | 2017-06-14 | 2017-06-14 | Battery test system |
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| CN201720689620.XU CN206975187U (en) | 2017-06-14 | 2017-06-14 | Battery test system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112327173A (en) * | 2020-10-23 | 2021-02-05 | 上海果下科技有限公司 | BMS online monitoring method based on Internet of things technology |
| CN113188582A (en) * | 2021-04-14 | 2021-07-30 | 合肥国轩高科动力能源有限公司 | System and method for testing data acquisition precision of battery management system |
-
2017
- 2017-06-14 CN CN201720689620.XU patent/CN206975187U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112327173A (en) * | 2020-10-23 | 2021-02-05 | 上海果下科技有限公司 | BMS online monitoring method based on Internet of things technology |
| CN113188582A (en) * | 2021-04-14 | 2021-07-30 | 合肥国轩高科动力能源有限公司 | System and method for testing data acquisition precision of battery management system |
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Effective date of registration: 20220124 Address after: 352100 science and technology building, No. 2, Xingang Road, Zhangwan Town, Jiaocheng District, Ningde City, Fujian Province Patentee after: Ningde Shidai Runzhi Software Technology Co.,Ltd. Address before: 352100 Xingang Road, Zhangwan Town, Jiaocheng District, Ningde, Fujian 1 Patentee before: Contemporary Amperex Technology Co.,Ltd. |