CN108599291A - A kind of embedded BMS multi-stage cascades battery management system and method - Google Patents
A kind of embedded BMS multi-stage cascades battery management system and method Download PDFInfo
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- CN108599291A CN108599291A CN201810332034.9A CN201810332034A CN108599291A CN 108599291 A CN108599291 A CN 108599291A CN 201810332034 A CN201810332034 A CN 201810332034A CN 108599291 A CN108599291 A CN 108599291A
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- 230000001960 triggered effect Effects 0.000 claims description 22
- 238000007599 discharging Methods 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 7
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Classifications
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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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- H02J7/0021—
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Abstract
Technical scheme of the present invention includes a kind of embedded BMS multi-stage cascades battery management system and method, for realizing：Collection is set to the battery operation data that the harvester of multi-stage cascade module is acquired；SOC calculating is carried out according to the battery operation data that measurement module is acquired, obtains the accurate operation data of battery；The preset value of battery operation data in different states is set, when operation data exceeds preset value, executes alarm and/or protection processing；The real-time status of battery is shown by display device according to measurement module, SOC computing modules, alarm module.Beneficial effects of the present invention are：It can be used for various cars and bus, the use scope of battery can greatly be improved；And the data can read data by internet or cell phone application, can also directly read data by electronic computer, user is facilitated to check；Acquisition and calculating high-precision so that high battery utilization rate and reliability are high.
Description
Technical field
The present invention relates to a kind of embedded BMS multi-stage cascades battery management system and methods, belong to embedded battery management
Field.
Background technology
Increasingly lack as the earth gradual warms up the energy, every country is higher and higher to energy requirements, to motor vehicle emission
Pollution requires to be increasingly stringenter, and emerging new energy car and bus are also more and more universal, and the present invention is related for these
Feature and requirement are managed the power supply system of current car and bus, fully save and utilize the energy, improve the energy
Utilization rate.
Battery management system major part highest administration designed by current each car and bus and supplier of producer
Battery strings number 8-15 strings, and the parameter of 8-15 strings can only be used for the use of microminiature automobile, for present situation, our company is invented
Battery management system highest administration battery strings number be 16*16 256 strings, can be used for various cars and bus, and
And the data can read data by internet or cell phone application, can also directly read data by electronic computer.
Invention content
In view of the deficiencies of the prior art, technical scheme of the present invention provides a kind of embedded BMS multi-stage cascades cell tube
Manage system and method, 256 strings that the battery management system highest administration battery strings number of technical solution of the present invention is 16*16 can be with
It is used for various cars and bus, and the data can read data by internet or cell phone application, can also lead to
It crosses electronic computer and directly reads data.
Technical scheme of the present invention includes a kind of embedded BMS multi-stage cascades battery management system, which includes micro- electricity
Brain control module, multi-stage cascade module and charging pile, it is characterised in that the microcomputer controlling module includes：Measurement module is used
It is set to the battery operation data that the harvester of the multi-stage cascade module is acquired in collection；SOC computing modules are used for root
SOC calculating is carried out according to the battery operation data that the measurement module is acquired, obtains the accurate operation data of battery；Alarm mould
Block, the preset value for battery operation data in different states to be arranged execute alarm when operation data exceeds preset value
And/or protection processing；Interactive module, for according to the measurement module, SOC computing modules, alarm module by the real-time of battery
State is shown by display device.
According to the embedded BMS multi-stage cascades battery management system, wherein multi-stage cascade module includes 16 series connection
Cascade module, each cascade module include 16 be used for electric power storage battery cores.
According to the embedded BMS multi-stage cascades battery management system, measurement module therein further includes：Use PID
When algorithm equilibrium the pressure drop of automatic rejection line loss each cascade module is measured into trip temperature, voltage measurement and current measurement.
According to the embedded BMS multi-stage cascades battery management system, alarm module therein further includes：Charging alarm
Unit and electric discharge alarm unit, when charging alarm unit and the alarm unit that discharges detect arbitrary cascade module and arbitrary battery core
Battery operation data carry out corresponding alarm and/or protection processing when reaching preset value.
According to the embedded BMS multi-stage cascades battery management system, wherein charging alarm unit is following for executing
Step：Detecting that multi-stage cascade module total voltage reaches preset value and the time reaches preset value upon discharging, protection is triggered,
Electric discharge will be off, if multi-stage cascade module voltage is restored to preset value or has detected charging current after protection, protect quilt
Release；Detect that arbitrary single string battery core voltage reaches preset value and the time reaches preset value when charging, protection be triggered and
Charging will be off, if after protection the corresponding battery core of all cascade modules be all restored to preset value and it is following when, or detected
Discharge current, then protection are released；Detect that electric current reaches preset value and the time reaches preset value when charging, protection is touched
Hair, charging will be off, if reaching default overcurrent protection release time or detecting discharge current after protection, protection is released
It puts；Detect that cascade module temperature reaches preset value and the time reaches preset value when charging, protection is triggered, and charging will be by
Shutdown, if temperature is restored to preset value after protection, protection is released.
According to the embedded BMS multi-stage cascades battery management system, wherein electric discharge alarm unit is following for executing
Step：Detect that multi-stage cascade module total voltage reaches preset value and the time reaches preset value upon discharging, trigger protection is simultaneously
Shutdown electric discharge, if battery voltage is restored to preset value or has detected charging current after protection, release guard；Work as electric discharge
When detect that arbitrary single string battery core voltage reaches preset value and the time reaches preset value, trigger protection simultaneously turns off electric discharge, protects
Afterwards if the corresponding battery core of all cascade modules is all restored to preset value or has detected charging current, protection is released；When putting
Detect that electric current reaches preset value and the time reaches preset value, trigger protection and shutdown electric discharge when electric, if reached after protection
Default overcurrent protection release time detects charging current；Detect upon discharging battery pack temperature reach preset value and when
Between reach preset value, protection is triggered, and electric discharge will be off；If if temperature is restored to preset value, release guard after protection；
When detecting that electric current reaches default reverse connecting protection value and the time reaches preset value, trigger protection turns off all electric discharges, if protection
After detect reversal connection eliminate, discharge reverse connecting protection.
According to the embedded BMS multi-stage cascades battery management system, wherein electric discharge alarm unit be additionally operable to execute with
Lower step：S71, when detecting that electric current reaches default short-circuit protection value and the time reaches preset value, protection is triggered, Suo Youfang
Electricity will be off, and will attempt to resume work again after protection certain time is interior,；S72 in real time surveys electric current when restoring
Amount, if still in short-circuit condition, starting protection immediately, until short trouble releases or continuous preset times restore unsuccessful,
Cut-out major loop output at this time, is in short-circuit protection state.
Technical scheme of the present invention also wraps a kind of embedded BMS multi-stage cascades battery management side according to above-mentioned arbitrary system
Method, which is characterized in that changing method includes：Collection is set to the battery operation that the harvester of the multi-stage cascade module is acquired
Data；SOC calculating is carried out according to the battery operation data that the measurement module is acquired, obtains the accurate operation data of battery；If
The preset value for setting battery operation data in different states executes alarm and/or protection when operation data exceeds preset value
Processing；The real-time status of battery is shown by display device according to the measurement module, SOC computing modules, alarm module
Show.
Beneficial effects of the present invention are：256 strings that battery management system highest administration battery strings number is 16*16, can be for
Various cars and bus use, and can greatly improve the use scope of battery；And the data can pass through internet
Or cell phone application reads data, can also directly read data by electronic computer, user is facilitated to check；Acquisition and calculating
In high precision so that high battery utilization rate and reliability are high.
Description of the drawings
Fig. 1 show the overall system block diagram according to embodiment of the present invention；
Fig. 2 show the multi-stage cascade module frame chart according to embodiment of the present invention；
Fig. 3 show the microcomputer controlling module block diagram according to embodiment of the present invention；
Fig. 4 show the microcomputer controlling module structure diagram according to embodiment of the present invention；
Fig. 5 a show -1 structure diagram of multi-stage cascade module according to embodiment of the present invention；
Fig. 5 b show -15 structural frames of multi-stage cascade -2~multi-stage cascade of module module according to embodiment of the present invention
Figure；
Fig. 5 c show -16 structure diagram of multi-stage cascade module according to embodiment of the present invention；
Fig. 6 show the charging pile structure diagram according to embodiment of the present invention；
Fig. 7 show the embedded Control schematic diagram according to embodiment of the present invention.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, right in the following with reference to the drawings and specific embodiments
The present invention is described in detail.The embedded BMS multi-stage cascades battery management system and method for the present invention is suitable for various small vapour
The battery management of vehicle and bus.
Fig. 1 show the overall system block diagram according to embodiment of the present invention.It includes microcomputer controlling module, multistage grade
Gang mould block and charging pile, microcomputer controlling module, multi-stage cascade module and charging pile are sequentially connected.
Fig. 2 show the microcomputer controlling module block diagram according to embodiment of the present invention.Wherein multi-stage cascade module is by 16
A concatenated cascade module composition.
Fig. 3 show the microcomputer controlling module block diagram according to embodiment of the present invention.It is specifically included, measurement module,
For collecting the battery operation data for being set to the harvester of multi-stage cascade module and being acquired；SOC computing modules are used for basis
The battery operation data that measurement module is acquired carry out SOC calculating, obtain the accurate operation data of battery；Alarm module is used for
The preset value of battery operation data in different states is set, when operation data exceeds preset value, executes alarm and/or protects
Shield processing；Interactive module, for the real-time status of battery to be passed through display according to measurement module, SOC computing modules, alarm module
Device is shown.
Fig. 4 show the microcomputer controlling module structure diagram according to embodiment of the present invention.Wherein micro computer controlled molding
Block structure specifically includes：Wireless communication module, LCD liquid crystal screen modules, computer interface module, micro computer charging module, micro computer
Power module, wherein output end and input terminal are respectively 2Pin terminals, and two pins of MCU of microcomputer controlling module pass through 2Pin
Terminal is connect with multi-stage cascade module -1, reads the running parameter data of multi-stage cascade module -1.Wireless communication module passes through one
A 32Pin terminals are connect with MCU.LCD liquid crystal screen modules are connect by 32Pin terminals with MCU.Computer interface module passes through 5Pin
Terminal is connect with MCU.Micro computer charging module input terminal is electrically connected by 2Pin terminals with external AC 220V exchanges, and micro computer fills
Electric module output end is connect by 2Pin terminals with microcomputer electric source module.Micro computer power supply module passes through 2Pin terminals and micro- electricity
Brain charging module connects, and is connect with microcomputer controlling module by 2Pin leading-out terminals.Microcomputer controlling module passes through the ends 2Pin
Son connect with multi-stage cascade module, multi-stage cascade module is connect with isolation module, isolation module by 2Pin terminals with it is next
Multi-stage cascade module connects.Multi-stage cascade module is connect by 18Pin terminals with 16S series electrical core model groups, 16S series electrical core models
Group anode is connect with charging pile, and 16S series electricals core model group cathode is gone here and there by connection terminal and the 16S of next multi-stage cascade module
Join the anode connection of battery core module.
Fig. 5 a show -1 structure diagram of multi-stage cascade module according to embodiment of the present invention.Illustrate with reference to figure 4, each
Multi-stage cascade module is equipped with a corresponding isolation module, and each isolation module is as current multi-stage cascade module and next stage
The protective device of multi-stage cascade module.
Multi-stage cascade module 1 is connect with 16 concatenated battery cores, isolation module, microcomputer controlling modules, and wherein battery core 1 connects
The anode of charging pile is connect, battery core 16 connects -2 corresponding battery core connection of multi-stage cascade module.
Fig. 5 b show -15 structural frames of multi-stage cascade -2~multi-stage cascade of module module according to embodiment of the present invention
Figure.Illustrate with reference to figure 4, each multi-stage cascade module is equipped with a corresponding isolation module, and each isolation module is as currently
The protective device of multi-stage cascade module and next stage multi-stage cascade module.
Multi-stage cascade module N (wherein 2=<N<=15) with 16 concatenated battery cores, isolation module, N-1 multi-stage cascade moulds
Block connects, and wherein battery core 1 connects the corresponding battery cores of multi-stage cascade module N-1, and it is corresponding that battery core 16 connects multi-stage cascade module N+1
Battery core connects.
Fig. 5 c show -16 structure diagram of multi-stage cascade module according to embodiment of the present invention.Illustrate with reference to figure 4, often
A multi-stage cascade module is equipped with a corresponding isolation module, each isolation module as current multi-stage cascade module with it is next
The protective device of grade multi-stage cascade module.
Multi-stage cascade module 16 is connect with 16 concatenated battery cores, isolation module, microcomputer controlling modules, isolation therein
Module is attached with next group of cascade module, and wherein battery core 1 connects the corresponding battery core of upper multi-stage cascade module, and battery core 16 connects
Connect the cathode of charging pile.
Fig. 6 show the charging pile structure diagram according to embodiment of the present invention.The anode connection of wherein charging pile is multistage
The battery core 1 of cascade module 1, the battery core 16 of the anode connection multi-stage cascade module 16 of charging pile.
Fig. 7 show the embedded Control schematic diagram according to embodiment of the present invention.It includes：Charge CAN communication, vehicle
CAN communication, output control, controlling alarm, temperature measurement, voltage measurement, Balance route, current measurement, SOC are calculated, and data are read
Internal calculation of the write-in based on MCU chip STM32F103 and embedded software is taken to write.
16 groups of temperature acquisition point, voltage acquisition precision 5mV, 1 DEG C of temperature acquisition precision, current detection accuracy 0.2% are remaining
Capacity check precision 2%, classifying alarm controling mechanism ensure that system is slept without any anxiety, and three-level is general alarm, and two level is tight
It alarms again, level-one sends out protection act.
Using advanced pid algorithm, automatic rejection line loss pressure drop when balanced so that collection voltages are accurate.Intelligence learning
Function improves the accuracy of SOC calculating.It can be communicated by RS232 interface and host computer, to be examined in upper computer end
See the various information of battery.
Based on above- mentioned information, MCU carries out corresponding alarm, prompt and adjustment according to collected battery data.It includes：
Detect that assembled battery total voltage reaches preset value and the time reaches preset value when charging, protection is triggered, and fills
Electricity will be off；If battery voltage is restored to preset value or has detected discharge current after protection, protection is released.When filling
Detect that a certain single string battery core voltage reaches preset value and the time reaches preset value when electric, protection is triggered, and charging will be closed
It is disconnected；If all battery cores are all restored to preset value or have detected discharge current after protection, protection is released.It detects when charging
Reach preset value to electric current and the time reaches preset value, protection is triggered, and charging will be off；If reaching default after protection
Overcurrent protection release time detects discharge current, and protection is released.Detect that battery pack temperature reaches default when charging
Value and time reach preset value, and protection is triggered, and charging will be off；If temperature is restored to preset value after protection, protection
It is released.
Detect that assembled battery total voltage reaches preset value and the time reaches preset value upon discharging, protection is triggered, and puts
Electricity will be off；If battery voltage is restored to preset value or has detected charging current after protection, protection is released.When putting
Detect that a certain single string battery core voltage reaches preset value and the time reaches preset value when electric, protection is triggered, and electric discharge will be closed
It is disconnected；If all battery cores are all restored to preset value or have detected charging current after protection, protection is released.It detects upon discharging
Reach preset value to electric current and the time reaches preset value, protection is triggered, and electric discharge will be off；If reaching default after protection
Overcurrent protection release time detects charging current, detects that battery pack temperature reaches preset value and the time reaches upon discharging
To preset value, protection is triggered, and electric discharge will be off；If temperature is restored to preset value after protection, protection is released.Work as detection
Reach default short-circuit protection value to electric current and the time reaches preset value, protection is triggered, and all FET will be off；Protection one
System will be attempted to resume work again after minute, find, still in short-circuit condition, to start to protect rapidly；Until short trouble solution
It removes or continuous 10 recoveries is unsuccessful, then cut off major loop output, be in short-circuit protection state.When detecting that electric current reaches default
Reverse connecting protection value and time reach preset value, and protection is triggered, and all FET will be off；Detect that reversal connection is eliminated after protection
Afterwards, reverse connecting protection discharges.
The above, only presently preferred embodiments of the present invention, the invention is not limited in the above embodiments, as long as
It reaches the technique effect of the present invention with identical means, should all belong to the scope of protection of the present invention.In the protection model of the present invention
Its technical solution and/or embodiment can have a variety of different modifications and variations in enclosing.
Claims (8)
1. a kind of embedded BMS multi-stage cascades battery management system, which includes microcomputer controlling module, multi-stage cascade module
And charging pile, it is characterised in that the microcomputer controlling module includes：
Measurement module, for collecting the battery operation data for being set to the harvester of the multi-stage cascade module and being acquired；
SOC computing modules, the battery operation data for being acquired according to the measurement module carry out SOC calculating, obtain battery
Accurate operation data；
Alarm module, the preset value for battery operation data in different states to be arranged, when operation data exceeds preset value
When, execute alarm and/or protection processing；
Interactive module, it is aobvious for being passed through the real-time status of battery according to the measurement module, SOC computing modules, alarm module
Showing device is shown.
2. embedded BMS multi-stage cascades battery management system according to claim 1, which is characterized in that the multistage
Cascade module includes 16 concatenated cascade modules, and each cascade module includes 16 battery cores for being used for electric power storage.
3. embedded BMS multi-stage cascades battery management system according to claim 1 or 2, which is characterized in that the survey
Measuring module further includes：
Each cascade module is measured into trip temperature using automatic rejection line loss pressure drop when pid algorithm equilibrium, voltage measurement and electricity
Flow measurement.
4. embedded BMS multi-stage cascades battery management system according to claim 1 or 2, which is characterized in that the report
Warning module further includes：
Charge alarm unit and electric discharge alarm unit, when charging alarm unit and electric discharge alarm unit detect arbitrary cascade module
And the battery operation data of arbitrary battery core carry out corresponding alarm and/or protection processing when reaching preset value.
5. embedded BMS multi-stage cascades battery management system according to claim 4, which is characterized in that the charging
Alarm unit is for executing following steps：
Detecting that multi-stage cascade module total voltage reaches preset value and the time reaches preset value upon discharging, protection is triggered,
Electric discharge will be off, if multi-stage cascade module voltage is restored to preset value or has detected charging current after protection, protect quilt
Release；
Detect that arbitrary single string battery core voltage reaches preset value and the time reaches preset value when charging, protection is triggered and fills
Electricity will be off, if after protection the corresponding battery core of all cascade modules be all restored to preset value and it is following when, or detected and put
Electric current, then protection are released；
Detect that electric current reaches preset value and the time reaches preset value when charging, protection is triggered, and charging will be off, and protects
If reaching default overcurrent protection release time or detecting discharge current after shield, protection is released；
Detect that cascade module temperature reaches preset value and the time reaches preset value when charging, protection is triggered, and charging will
It is turned off, if temperature is restored to preset value after protection, protection is released.
6. embedded BMS multi-stage cascades battery management system according to claim 4, which is characterized in that the electric discharge
Alarm unit is for executing following steps：
Detect that multi-stage cascade module total voltage reaches preset value and the time reaches preset value upon discharging, trigger protection simultaneously closes
Disconnected electric discharge, if battery voltage is restored to preset value or has detected charging current after protection, release guard；
Detect that arbitrary single string battery core voltage reaches preset value and the time reaches preset value upon discharging, trigger protection simultaneously turns off
Electric discharge protects quilt if the corresponding battery core of all cascade modules is all restored to preset value or has detected charging current after protection
Release；
Detect that electric current reaches preset value and the time reaches preset value, trigger protection and shutdown electric discharge upon discharging, after protection
If reaching default overcurrent protection release time or detecting charging current；
Detect that battery pack temperature reaches preset value and the time reaches preset value upon discharging, protection is triggered, and electric discharge will be by
Shutdown；If if temperature is restored to preset value, release guard after protection；
When detecting that electric current reaches default reverse connecting protection value and the time reaches preset value, protection is triggered, and all electric discharges will be by
Shutdown, if being detected after protection, reversal connection is eliminated, and discharges reverse connecting protection.
7. embedded BMS multi-stage cascades battery management system according to claim 6, which is characterized in that the electric discharge
Alarm unit is additionally operable to execute following steps：
S71, when detecting that electric current reaches default short-circuit protection value and the time reaches preset value, protection is triggered, all electric discharges
It will be off, will attempt to resume work again after protection certain time is interior,；
S72 in real time measures electric current when restoring, if still in short-circuit condition, starting protection immediately, until short circuit therefore
Barrier releases or continuous preset times restore unsuccessful, cuts off major loop output at this time, is in short-circuit protection state.
8. according to a kind of embedded BMS multi-stage cascades battery management method of the arbitrarily described systems of claim 1-7, feature exists
In changing method includes：
Collection is set to the battery operation data that the harvester of the multi-stage cascade module is acquired；
SOC calculating is carried out according to the battery operation data that the measurement module is acquired, obtains the accurate operation data of battery；
The preset value of battery operation data in different states is set, when operation data exceed preset value when, execute alarm and/
Or protection processing；
The real-time status of battery is shown by display device according to the measurement module, SOC computing modules, alarm module
Show.
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| CN201810332034.9A CN108599291A (en) | 2018-04-13 | 2018-04-13 | A kind of embedded BMS multi-stage cascades battery management system and method |
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| CN201810332034.9A CN108599291A (en) | 2018-04-13 | 2018-04-13 | A kind of embedded BMS multi-stage cascades battery management system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110676526A (en) * | 2019-10-11 | 2020-01-10 | 联方云天科技(珠海)有限公司 | Modular battery system with multilayer management system and structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110676526A (en) * | 2019-10-11 | 2020-01-10 | 联方云天科技(珠海)有限公司 | Modular battery system with multilayer management system and structure |
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