CN109450059A - Distributed lithium battery control system and method - Google Patents
Distributed lithium battery control system and method Download PDFInfo
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- CN109450059A CN109450059A CN201910045269.4A CN201910045269A CN109450059A CN 109450059 A CN109450059 A CN 109450059A CN 201910045269 A CN201910045269 A CN 201910045269A CN 109450059 A CN109450059 A CN 109450059A
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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
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to technical field of battery management, and a kind of distributed lithium battery control system is disclosed, including the hardware system being made of main control module, total voltage acquisition module, monomer battery voltage acquisition module, high voltage control module, low-pressure control module, total voltage sensor, CPLD control module one, light coupling relay one, sub- voltage sensor, high pressure balance module, low pressure adaptation module, CAN communication module one and CAN communication module two；Main control module realizes communication connection by CAN communication module one and total voltage acquisition module and monomer battery voltage acquisition module realization communication connection, by CAN communication module two and high voltage control module and low-pressure control module.The invention also discloses a kind of control methods of distributed lithium battery control system.The present invention solves lithium battery control system, while realizing any single cell operation voltage in effective monitoring lithium battery module group, cannot achieve the problem of monitoring cost is effectively reduced.
Description
Technical field
The present invention relates to technical field of battery management, specially a kind of distributed lithium battery control system and method.
Background technique
Many good advantages that lithium battery possesses by it are stored instead of traditional nickel-cadmium storage battery and plumbic acid at leisure
Battery becomes the power battery of current mainstream.It is continuous in people since its chemical reaction is extremely complex in lithium battery interior
While improving lithium battery self performance, also in the administrative skill to lithium battery and using constantly being studied, to increase lithium
Battery improves lithium battery efficiency, maximally plays lithium battery performance.
Currently, lithium battery management system mainly has centralization and master-salve distributed two kinds of frameworks.Wherein, centralized cell tube
Reason system mesohigh processing unit and data acquisition unit are integrated in one piece of circuit board top, this battery management system acquisition
Data volume is few, and control strategy is also relatively simple；And master slave and distributed structure battery management system is by data acquisition unit and master control
Unit composition, data acquisition unit are mainly responsible for data acquisition, and main control unit is responsible for data processing and high voltage control, this framework
Main control unit and high voltage control unit integrate, occupy the pin resource of more master control microcontroller, it is micro- in this way
Controller controls the modules such as display screen and wireless communication, just will appear the not enough situation of resource.
Application publication number is that the application for a patent for invention of CN107732341A discloses a kind of distribution of hybrid vehicle
Battery management system, including submodule voltage detection unit, submodule temperature detecting unit, submodule balanced unit, submodule
Control unit, total blocks current detection unit, total module control unit, first total module CAN interface unit, second total module
CAN interface unit and DC-DC converting unit.Foregoing invention patent application can voltage, electric current and temperature to lithium ionic cell module
The state parameters such as degree are acquired and are handled in real time, realize the real time monitoring to lithium ionic cell module.
Although foregoing invention patent application can be realized the function of real time monitoring battery module, but also greatly improve
The management cost of battery management system, and high-intensitive management battery work also greatly reduces the use of battery management system
Service life.
The present invention provides a kind of distributed lithium battery control system and method, it is intended to lithium battery control system is solved, in reality
In existing effective monitoring lithium battery module group while any single cell operation voltage, it cannot achieve and monitoring cost is effectively reduced
Technical problem.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, it the present invention provides a kind of distributed lithium battery control system and method, solves
Lithium battery control system, while realizing any single cell operation voltage in effective monitoring lithium battery module group, Wu Fashi
The technical issues of monitoring cost is now effectively reduced.
(2) technical solution
To achieve the above object, the invention provides the following technical scheme:
Distributed lithium battery control system, including mould is acquired by main control module, total voltage acquisition module, monomer battery voltage
Block, high voltage control module, low-pressure control module, total voltage sensor, CPLD control module one, light coupling relay one, sub- voltage
The hardware system that sensor, high pressure balance module, low pressure adaptation module, CAN communication module one and CAN communication module two form,
It further include simultaneously the operation system of software operated on above-mentioned hardware system and application program；
Main control module is realized logical by CAN communication module one and total voltage acquisition module and monomer battery voltage acquisition module
Letter connection；Total voltage acquisition module is realized by serial ports master-slave communication mechanism and total voltage sensor and is communicated to connect；
The output port of monomer battery voltage acquisition module and the input port of CPLD control module one realize communication connection,
The output port of CPLD control module one and the input port of light coupling relay one, which are realized, to be communicated to connect, light coupling relay one it is defeated
The input port of exit port and sub- voltage sensor, which is realized, to be communicated to connect, sub- voltage sensor successively with list any in lithium battery group
Body battery carries out intermittent connection, the input terminal cause for gossip of the output port and monomer battery voltage acquisition module of sub- voltage sensor
Now communicate to connect；
Main control module is realized by CAN communication module two and high voltage control module and low-pressure control module and is communicated to connect, high
The input port of the output port and high pressure balance module of pressing control module, which is realized, to be communicated to connect, the output end of low-pressure control module
Mouth and the input port of low pressure adaptation module are realized and are communicated to connect.
Preferably, the sub- voltage sensor is used to receive the instruction of light coupling relay one, intermittent acquisition single battery
Voltage data and the voltage data of any single battery of acquisition is transmitted to monomer battery voltage acquisition module.
Further, the control system includes current acquisition module and current sensor, and current acquisition module passes through CAN
Communication module one and main control module, which are realized, to be communicated to connect, and current acquisition module passes through serial ports master-slave communication mechanism and current sensor
Realize communication connection.
Further, the control system includes single battery temperature collecting module, CPLD control module two, optocoupler relay
Device two and temperature sensor, the output port of single battery temperature collecting module and the input port of CPLD control module two are realized
The input port of communication connection, the output port of CPLD control module two and light coupling relay two, which is realized, to be communicated to connect, optocoupler after
The output port of electric appliance two and the input port of temperature sensor realize communication connection, the output port and monomer of temperature sensor
The input port of battery temperature acquisition module realizes communication connection.
Further, the temperature sensor is used to receive the instruction of light coupling relay two and successively appoints in lithium battery group
One single battery carries out intermittent connection, the temperature data of intermittent acquisition single battery and any single battery by acquisition
Temperature data be transmitted to single battery temperature collecting module.
The control method of distributed lithium battery control system, including following rate-determining steps:
S1. main control module is successively electric with total voltage acquisition module, current acquisition module, monomer by CAN communication module one
Cell voltage acquisition module and single battery temperature collecting module realize communication, and send data acquisition to above-mentioned acquisition module and refer to
It enables；
S2. the acquisition module in above-mentioned steps S1 acquire respectively lithium battery group total voltage data, lithium battery group current data,
Any monomer battery voltage and temperature data in lithium battery group, and above-mentioned acquisition data are transmitted to by CAN communication module one
Main control module；
S3. main control module receives the parameters data of acquisition module acquisition, built-in lithium battery first and in main control module
Group standard operating voltage and current value, single battery standard operating voltage and temperature value compare, further according in main control module
Built-in logic judgment program makes assay conclusion to battery pack and single battery, and according to above-mentioned assay conclusion
It makes and executes order；
If main control module makes the decision that executes of control high pressure, main control module is voltage-controlled to height by CAN communication module two
Molding block sends instruction, and high voltage control module receives the instruction of main control module, and is reduced by high pressure balance module and be higher than standard
The voltage of the single battery of voltage value；
If main control module makes the decision that executes of control low pressure, main control module passes through CAN communication module two to low pressure control
Molding block sends instruction, and low-pressure control module receives the instruction of main control module, and is improved by low pressure adaptation module and be lower than standard
The voltage of the single battery of voltage value.
(3) beneficial effect
Compared with prior art, the present invention has following beneficial technical effect:
1, monomer battery voltage acquisition module passes through one Xiang Guang of CPLD control module in the distribution lithium battery control system
Coupling relay one sends any monomer battery voltage data command in intermittent acquisition lithium battery group, and light coupling relay one makes sub- electricity
Pressure sensor successively realizes intermittent conducting, the successively intermittent acquisition of sub- voltage sensor with single battery any in lithium battery group
Any monomer battery voltage data in lithium battery group realize any monomer battery voltage data in intermittent acquisition lithium battery group
Technical effect；
High voltage control module is carried out by the single battery in high pressure balance module and lithium battery group higher than standard voltage value
Intermittent connection realizes that the purpose for reducing the voltage for the single battery for being higher than standard voltage value, low-pressure control module pass through low pressure
Intermittent connection is carried out lower than the single battery of standard voltage value in adaptation module and lithium battery group, realization, which improves, is lower than standard electric
The purpose of the voltage of the single battery of pressure value, to realize the work electricity of any single battery in intermittent control lithium battery group
The technical effect of pressure；
This technical solution by using it is intermittent monitoring lithium battery group in any single battery operating voltage mode,
It achieves while realizing any single cell operation voltage in effective monitoring lithium battery module group, monitoring lithium electricity is effectively reduced
The technical effect of pond cost.
2, single battery temperature collecting module passes through CPLD control module two to light in the distribution lithium battery control system
Coupling relay two sends any single battery temperature data instruction in intermittent acquisition lithium battery group, light coupling relay and make temperature
Sensor successively realizes intermittent conducting with single battery any in lithium battery group, and successively intermittent acquisition lithium is electric for temperature sensor
Any single battery temperature data in the group of pond, to achieve the work temperature of any single battery in intermittent acquisition lithium battery group
The technical effect of degree.
3, the control method of the distribution lithium battery control system passes through the intermittent acquisition of monomer battery voltage acquisition module
Any monomer battery voltage data and it is transmitted to main control module in lithium battery group, main control module is according to the logic judgment journey built in it
The monomer battery voltage data of ordered pair acquisition are analyzed and evaluated and make execution order and send a command to high voltage control module
Or/and low-pressure control module, high voltage control module or/and the intermittent control of low-pressure control module make any monomer in lithium battery group
Battery is in normal operating conditions, realizes the purpose of the operating voltage of any single battery in intermittent monitoring lithium battery group,
To achieve while realizing any single cell operation voltage in effective monitoring lithium battery module group, monitoring is effectively reduced
The technical effect of lithium battery cost.
Detailed description of the invention
Fig. 1 is the logic diagram of the distributed lithium battery control system of the present invention；
Fig. 2 is the logic diagram of monomer battery voltage acquisition module of the invention；
Fig. 3 is the logic diagram of single battery temperature collecting module of the invention；
Fig. 4 is the logic diagram of the control method of the distributed lithium battery control system of the present invention.
Specific embodiment
Distributed lithium battery control system, referring to Fig. 1, including by main control module, total voltage acquisition module, current acquisition mould
Block, monomer battery voltage acquisition module, single battery temperature collecting module, total voltage sensor, current sensor, high voltage control
Module, low-pressure control module, high pressure balance module, low pressure adaptation module, CAN communication module one and CAN communication module two form
Hardware system, further include the operation system of software operated on above-mentioned hardware system and application program；
Wherein, main control module is mainly used for storing lithium battery group standard operating voltage value, lithium battery group standard operating current
Value, single battery standard operating voltage value, single battery standard operating temperature value, while being sent to acquisition module and instructing and receive
The parameters data of acquisition module acquisition, and carried out according to parameters data of the logic judgment program built in it to acquisition
Analytical judgment processing, and executed instruction to high voltage control module or/and low-pressure control module transmission；
Main control module is adopted by CAN communication module one and total voltage acquisition module, current acquisition module, monomer battery voltage
Collect module and single battery temperature collecting module realizes communication connection；
Total voltage acquisition module is mainly used for receiving the instruction of main control module and sending to total voltage sensor instructing, total electricity
Pressure sensor is mainly used for acquiring the total voltage data of lithium battery group entirety and the total voltage data of acquisition is transmitted to total voltage
The CPU of acquisition module, total voltage acquisition module is communicated by serial ports master-slave communication mechanism with the CPU of total voltage sensor realization,
And the CPU of total voltage acquisition module be primary processor, total voltage sensor CPU be from processor；
Current acquisition module is mainly used for receiving the instruction of main control module and sending to current sensor instructing, current sense
Device is mainly used for acquiring the current data of lithium battery group and the current data of acquisition is transmitted to current acquisition module, current sense
The CPU of device is communicated by serial ports master-slave communication mechanism with the CPU of current acquisition module realization, and the CPU of current acquisition module is
Primary processor, current sensor CPU be from processor；
As shown in Fig. 2, monomer battery voltage acquisition module is mainly used for receiving the instruction of main control module and control to CPLD
Module one send instruction, CPLD control module one be mainly used for receive monomer battery voltage acquisition module instruction and to optocoupler after
Electric appliance one sends instruction, and light coupling relay one is mainly used for receiving the instruction of CPLD control module one and send out to sub- voltage sensor
Send instruction, sub- voltage sensor is mainly used for receiving the instruction of light coupling relay one and successively electric with monomer any in lithium battery group
Pond carries out intermittent connection, the voltage data of intermittent acquisition single battery and by the voltage number of any single battery of acquisition
According to being transmitted to monomer battery voltage acquisition module；
Wherein, the output port of monomer battery voltage acquisition module is communicated with the realization of the input port of CPLD control module one
Connection, the output port of CPLD control module one and the input port of light coupling relay one realize communication connection, light coupling relay
The input port of one output port and sub- voltage sensor, which is realized, to be communicated to connect, the output port and monomer of sub- voltage sensor
The input port of battery voltage acquisition module realizes communication connection；
As shown in figure 3, single battery temperature collecting module is mainly used for receiving the instruction of main control module and control to CPLD
Module two send instruction, CPLD control module two be mainly used for receive single battery temperature collecting module instruction and to optocoupler after
Electric appliance two sends instruction, and light coupling relay two is mainly used for receiving the instruction of CPLD control module two and send to temperature sensor
Instruction, temperature sensor be mainly used for receive light coupling relay two instruction and successively with single battery any in lithium battery group into
The intermittent connection of row, the intermittent temperature data for acquiring single battery simultaneously pass the temperature data of any single battery of acquisition
Transport to single battery temperature collecting module；
Wherein, the output port of single battery temperature collecting module is communicated with the realization of the input port of CPLD control module two
Connection, the output port of CPLD control module two and the input port of light coupling relay two realize communication connection, light coupling relay
Two output port and the input port of temperature sensor realize communication connection, the output port and single battery of temperature sensor
The input port of temperature collecting module realizes communication connection；
Main control module is realized by CAN communication module two and high voltage control module and low-pressure control module and is communicated to connect；
High voltage control module is mainly used for receiving the instruction of main control module and sending to high pressure balance module instructing, and high pressure is equal
Weighing apparatus module be mainly used for receive high voltage control module instruction and in lithium battery group be higher than standard voltage value single battery into
The intermittent connection of row, the input port of high pressure balance module and the output port of high voltage control module are realized and are communicated to connect；
Low-pressure control module is mainly used for receiving the instruction of main control module and sending to low pressure adaptation module instructing, and low pressure is suitable
With module be mainly used for receive low-pressure control module instruction and in lithium battery group be lower than standard voltage value single battery into
The intermittent connection of row, the input port of low pressure adaptation module and the output port of low-pressure control module are realized and are communicated to connect.
The control method of distributed lithium battery control system, as shown in figure 4, including following rate-determining steps:
S1. main control module is successively electric with total voltage acquisition module, current acquisition module, monomer by CAN communication module one
Cell voltage acquisition module and single battery temperature collecting module realize communication, and send data acquisition instructions to above-mentioned acquisition module
Main control module is communicated by CAN communication module one with total voltage acquisition module, and main control module is adopted to total voltage
Collect module and sends total voltage data acquisition instructions；
Main control module is communicated by CAN communication module one with current acquisition module, and main control module is to current acquisition mould
Block sends current data acquisition instructions；
Main control module is communicated by CAN communication module one with monomer battery voltage acquisition module, and main control module is to list
Body battery voltage acquisition module sends monomer battery voltage data acquisition instructions；
Main control module is communicated by CAN communication module one with single battery temperature collecting module, and main control module is to list
Body battery temperature acquisition module sends the instruction of single battery temperature data acquisition；
S2. the acquisition module in above-mentioned steps S1 acquire respectively lithium battery group total voltage data, lithium battery group current data,
Any monomer battery voltage and temperature data in lithium battery group, and above-mentioned acquisition data are transmitted to by CAN communication module one
Main control module
Total voltage acquisition module sends request total voltage data command to total voltage sensor, and total voltage sensor acquires lithium
The total voltage data of acquisition are simultaneously sent to total voltage acquisition module, total voltage acquisition by serial ports by the total voltage data of battery pack
Module is communicated with main control module by CAN communication module one and above-mentioned total voltage data is transmitted to main control module；
Current acquisition module sends request current data order to current sensor, and current sensor acquires lithium battery group
The current data of acquisition is simultaneously sent to current acquisition module by serial ports by current data, and current acquisition module passes through CAN communication
Module one is communicated with main control module and above-mentioned current data is transmitted to main control module；
Monomer battery voltage acquisition module sends intermittent acquisition lithium to light coupling relay one by CPLD control module one
Any monomer battery voltage instruction in battery pack, light coupling relay one make sub- voltage sensor successively with list any in lithium battery group
Body battery realizes intermittent conducting, sub- voltage sensor successively any monomer battery voltage data in intermittent acquisition lithium battery group
And transmit above-mentioned data to monomer battery voltage acquisition module, monomer battery voltage acquisition module by CAN communication module one with
Main control module communicate and above-mentioned data is transmitted to main control module；
Single battery temperature collecting module sends intermittent acquisition lithium to light coupling relay two by CPLD control module two
Any single battery temperature instruction in battery pack, light coupling relay two make temperature sensor successively with monomer any in lithium battery group
Battery realizes intermittent conducting, and temperature sensor successively any single battery temperature data and passes in intermittent acquisition lithium battery group
Defeated above-mentioned data to single battery temperature collecting module, single battery temperature collecting module passes through CAN communication module one and master control
Module communicate and above-mentioned data is transmitted to main control module；
S3. main control module receives the parameters data of acquisition module acquisition, built-in lithium battery first and in main control module
Group standard operating voltage and current value, single battery standard operating voltage and temperature value compare, further according in main control module
Built-in logic judgment program makes assay conclusion to battery pack and single battery, and according to above-mentioned assay conclusion
It makes and executes order
Main control module receives the lithium battery group total voltage data that total voltage acquisition module is sent, and by above-mentioned total voltage data
It is compared and analyzed with lithium battery group standard operating voltage value built-in in main control module, main control module is according to the logic built in it
Determining program makes evaluation conclusion to the work total voltage situation of lithium battery group；
Main control module receives the lithium battery group current data that current acquisition module is sent, and by above-mentioned current data and master control
Built-in lithium battery group standard working current value compares and analyzes in module, and main control module is according to the logic judgment journey built in it
The operating current situation of ordered pair lithium battery group makes evaluation conclusion；
Main control module receives the monomer battery voltage data that monomer battery voltage acquisition module is sent, and above-mentioned monomer is electric
Cell voltage data are compared and analyzed with single battery standard operating voltage value built-in in main control module, and main control module is according to it
Built-in logic judgment program makes evaluation conclusion to the operating voltage situation of any single battery；
Main control module receives the single battery temperature data that single battery temperature collecting module is sent, and above-mentioned monomer is electric
Pond temperature data is compared and analyzed with single battery standard operating temperature value built-in in main control module, and main control module is according to it
Built-in logic judgment program makes evaluation conclusion to the operating temperature situation of any single battery；
Main control module carries out comprehensive analysis processing to above-mentioned evaluation conclusion according to the logic judgment program built in it, makes and holding
Line command:
If main control module makes the decision that executes of control high pressure, main control module is voltage-controlled to height by CAN communication module two
Molding block sends instruction, and high voltage control module receives the instruction of main control module, and is reduced by high pressure balance module and be higher than standard
The voltage of the single battery of voltage value；
If main control module makes the decision that executes of control low pressure, main control module passes through CAN communication module two to low pressure control
Molding block sends instruction, and low-pressure control module receives the instruction of main control module, and is improved by low pressure adaptation module and be lower than standard
The voltage of the single battery of voltage value.
Claims (6)
1. a kind of distribution lithium battery control system, it is characterised in that: including by main control module, total voltage acquisition module, monomer
Battery voltage acquisition module, high voltage control module, low-pressure control module, total voltage sensor, CPLD control module one, optocoupler after
Electric appliance one, sub- voltage sensor, high pressure balance module, low pressure adaptation module, CAN communication module one and two groups of CAN communication module
At hardware system, while further including the operation system of software operated on above-mentioned hardware system and application program；
Main control module realizes communication link by CAN communication module one and total voltage acquisition module and monomer battery voltage acquisition module
It connects；Total voltage acquisition module is realized by serial ports master-slave communication mechanism and total voltage sensor and is communicated to connect；
The output port of monomer battery voltage acquisition module and the input port of CPLD control module one realize communication connection, CPLD
The output port of control module one and the input port of light coupling relay one realize communication connection, the output end of light coupling relay one
The input port of mouth and sub- voltage sensor, which is realized, to be communicated to connect, and sub- voltage sensor is successively electric with monomer any in lithium battery group
Pond carries out intermittent connection, and the output port of sub- voltage sensor and the input port of monomer battery voltage acquisition module are realized logical
Letter connection；
Main control module is realized by CAN communication module two and high voltage control module and low-pressure control module and is communicated to connect, high voltage-controlled
The input port of the output port of molding block and high pressure balance module, which is realized, to be communicated to connect, the output port of low-pressure control module with
The input port of low pressure adaptation module realizes communication connection.
2. lithium battery control system according to claim 1, it is characterised in that: the sub- voltage sensor is for receiving light
The instruction of coupling relay one, the voltage data of intermittent acquisition single battery and by the voltage number of any single battery of acquisition
According to being transmitted to monomer battery voltage acquisition module.
3. lithium battery control system according to claim 1, it is characterised in that: the control system includes current acquisition mould
Block and current sensor, current acquisition module realize communication connection, current acquisition mould by CAN communication module one and main control module
Block is realized by serial ports master-slave communication mechanism and current sensor and is communicated to connect.
4. lithium battery control system according to claim 1, it is characterised in that: the control system includes single battery temperature
Spend acquisition module, CPLD control module two, light coupling relay two and temperature sensor, the output of single battery temperature collecting module
The input port of port and CPLD control module two, which is realized, to be communicated to connect, the output port and optocoupler relay of CPLD control module two
The input port of device two realizes communication connection, and the output port of light coupling relay two and the input port of temperature sensor are realized logical
Letter connection, the output port of temperature sensor and the input port of single battery temperature collecting module are realized and are communicated to connect.
5. lithium battery control system according to claim 4, it is characterised in that: the temperature sensor is for receiving optocoupler
The instruction of relay two simultaneously successively carries out intermittent connection, intermittent acquisition single battery with single battery any in lithium battery group
Temperature data and the temperature data of any single battery of acquisition is transmitted to single battery temperature collecting module.
6. a kind of control method of distribution lithium battery control system, it is characterised in that: including following rate-determining steps:
S1. main control module is successively electric with total voltage acquisition module, current acquisition module, single battery by CAN communication module one
It presses acquisition module and single battery temperature collecting module to realize communication, and sends data acquisition instructions to above-mentioned acquisition module；
S2. the acquisition module in above-mentioned steps S1 acquires lithium battery group total voltage data, lithium battery group current data, lithium electricity respectively
Any monomer battery voltage and temperature data in the group of pond, and above-mentioned acquisition data are transmitted to master control by CAN communication module one
Module；
S3. main control module receives the parameters data of acquisition module acquisition, built-in lithium battery group mark first and in main control module
Quasi- operating voltage and current value, single battery standard operating voltage and temperature value compare, further according to built-in in main control module
Logic judgment program assay conclusion is made to battery pack and single battery, and made according to above-mentioned assay conclusion
Execute order；
If main control module makes the decision that executes of control high pressure, main control module passes through CAN communication module two to high voltage control mould
Block sends instruction, and high voltage control module receives the instruction of main control module, and is reduced by high pressure balance module and be higher than normal voltage
The voltage of the single battery of value；
If main control module makes the decision that executes of control low pressure, main control module passes through CAN communication module two to low voltage control mould
Block sends instruction, and low-pressure control module receives the instruction of main control module, and is improved by low pressure adaptation module and be lower than normal voltage
The voltage of the single battery of value.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110018421A (en) * | 2019-05-22 | 2019-07-16 | 四川网达科技有限公司 | Battery state monitoring method and system |
| CN110146820A (en) * | 2019-05-23 | 2019-08-20 | 武汉市康达电气有限公司 | Realize the apparatus and method of hydrogen fuel cell voltage high speed acquisition and real-time Transmission |
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| CN101141012A (en) * | 2007-01-19 | 2008-03-12 | 华南理工大学 | Collective and distributive type power batteries dynamic equilibria management system |
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| CN110018421A (en) * | 2019-05-22 | 2019-07-16 | 四川网达科技有限公司 | Battery state monitoring method and system |
| CN110018421B (en) * | 2019-05-22 | 2022-02-01 | 四川网达科技有限公司 | Battery pack state monitoring method and system |
| CN110146820A (en) * | 2019-05-23 | 2019-08-20 | 武汉市康达电气有限公司 | Realize the apparatus and method of hydrogen fuel cell voltage high speed acquisition and real-time Transmission |
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| CN109450059B (en) | 2020-01-10 |
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