CN107887660A - A kind of automatic adjusument electrokinetic cell system - Google Patents
A kind of automatic adjusument electrokinetic cell system Download PDFInfo
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- CN107887660A CN107887660A CN201710969402.6A CN201710969402A CN107887660A CN 107887660 A CN107887660 A CN 107887660A CN 201710969402 A CN201710969402 A CN 201710969402A CN 107887660 A CN107887660 A CN 107887660A
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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
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
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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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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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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- 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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
-
- 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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
-
- 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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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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
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Automation & Control Theory (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention provides a kind of automatic adjusument electrokinetic cell system.During for the management of battery modules charge and discharge balancing and battery modules failure, the automatic adjusument of system.System contains multiple structure identical battery units, and each unit carries out coordination management and control by master control borad BCU, when single module overcharge, overdischarge or failure, temporary transient sexual isolation can be carried out or be permanently sequestered, electric quantity balancing during ensureing normal work, during failure, work can be depressured.Electrokinetic cell system simultaneously, comprising heater and cooling device, when battery module temperature is less than 0 DEG C, before charging, can be heated first to battery modules；When battery module operating temperature is more than 45 DEG C, battery modules can also be cooled.Present system can adapt to different environment and different temperature, carries out balanced management to battery modules electricity, temperature, when there is local fault, can carry out the electric discharge of automatic adjusument battery modules and charging.
Description
Technical field
The present invention relates to electric automobile power battery technical field, is related specifically to a kind of equal for battery modules discharge and recharge
When weighing apparatus management and battery modules failure, system is capable of the electrokinetic cell system of automatic adjusument.
Background technology
With the rapid development of science and technology, and the increasingly raising of environmental requirement, electric automobile is with its unique advantage
Progress into people's daily life.
Electric automobile is powered using electrokinetic cell system as power, and because lithium battery has, specific capacity is big, works
Voltage is high, have extended cycle life, small volume, it is in light weight etc. be a little widely adopted, but due to the voltage and capacity of battery core monomer
It is all smaller, therefore, on electric automobile typically using many battery modules series and parallels form battery system come simultaneously meet voltage and
The requirement of capacity.
Battery system composition generally comprises battery core, module, electrical system, heat management system, casing and BMS.BMS can be carried
High battery utilization rate, prevents battery modules from overcharge and overdischarge occur, extends the service life of battery modules, monitors battery mould
The state of group.
BMS is the parts of battery system most critical, and core is by hardware circuit, bottom software and application software group
Into；BMS hardware forms by master control borad BCU and from control plate BMU two parts, is arranged on from control plate BMU inside battery modules, for examining
Survey module voltage, electric current and Balance route；Master control borad BCU installation sites are more flexible, for Control, state of charge
SOC estimates and electric injury protection.
At present, BMS management systems are still in the starting stage, its function be mostly vehicle instruction perform, signal acquisition with
Transmission, failure warning and protection act (emergency power off shutdown)；Traditional BMS management systems, though it can meet that vehicle routine use will
Ask, but still have following deficiency：
1) because the discrete lines of battery cell and the difference of use environment, battery modules electricity, temperature have in various degree
Difference, tradition can not to battery modules electricity, temperature carry out balanced management；
2) when single or multiple battery modules failures, traditional EMS simply warns or action protection, can not adaptively adjust
Section, is easily caused inconvenience to the user.
The content of the invention
The technical problems to be solved by the invention are the defects of overcoming prior art, there is provided a kind of to can adapt to different rings
Border and different temperature, balanced management is carried out to battery modules electricity, temperature, when there is local fault, can be carried out adaptive
The automatic adjusument electrokinetic cell system for answering regulating cell module to discharge and charge.
To achieve these goals, the present invention uses following technical scheme：
A kind of automatic adjusument electrokinetic cell system, is made up of several battery units, it is characterised in that each battery
Battery modules are in series with inside unit, from control plate BMU and relay, each battery cells in series forms battery system, by master control
Plate BCU centralized management, coordinate control；Include charging terminal, total plus end and total negative terminal, charging terminal in the battery system
Charging circuit is connected into, and cooling device and heater are set simultaneously in the charge circuit, cooling device is in series with a cooling
Fuse, heater are in series with a heating fuse；Temperature sensor and electricity are integrated with described battery unit
Detection means, temperature sensor and electric quantity detection apparatus are connected with the BMU in the battery unit and provide signal；Described is total
Plus end is also associated with a preliminary filling resistance, and preliminary filling resistance is in parallel with total anode electric relay, the common master for connecting battery unit
Fuse, current divider, current divider series connection total negative terminal relay are additionally provided with the main circuit of battery unit；
Described battery modules are formed by multiple battery core series-parallel connections, battery modules number n according to electric machine controller rated voltage with
Battery modules monomer voltage ratio determines, specific to determine that formula is：N=electric machine controllers rated voltage/battery modules monomer voltage；
Electric machine controller global function voltage is a value range, and its rated voltage is more than battery modules monomer electricity with minimum voltage difference
Pressure；When battery modules design, it should ensure that remaining power module voltage sum is still in motor control when single battery module damages
In device global function voltage range, it is ensured that controller can be depressured work.
Relay KiA and KiB is installed, relay KiA and KiB is electric before i-th of module in described battery modules
Interlocking, and have master control borad BCU centralized Controls；KiA is closed under default condition, and KiB disconnects, and when both switch, should be set rationally
Delay, to avoid causing battery unit short-circuit.
For battery modules electricity, temperature difference:Detected when from control plate BMU, battery modules electricity, temperature and average value difference
When not bigger, master control borad BCU disconnects KiA according to from plate BMU data are controlled, and after delay, closes KiB, disparate modules are isolated,
And the timely monitor number of modules；When it is close with average value, KiB is disconnected, after delay, KiA is closed, seals in battery system again
Work.
For battery modules section failure, it can not recover, master control borad BMU positions according to from control plate BCU data, disconnects
KiA, after delay, KiB is closed, failure module is thoroughly isolated, and reporting fault battery modules are numbered.
This electrokinetic cell system mainly has following working condition when working：
1) charging detection
Lithium cell charging temperature is 0-45 DEG C, before charging, master control borad BCU detection battery module temperature, if battery temperature is low
In 0 DEG C, heating relay closure, heater starts, battery modules is heated, treat that battery modules reach charging temperature and added
Electrothermal relay disconnects, and system restPoses.
2) charge
Always negative relay, charge relay, battery modules start to charge up closure, respectively gather battery electricity in good time from control plate BMU
Pressure, temperature, and submit data to give master control borad BCU.
Master control borad BCU calculates module electricity SOC, due to the difference between module, if battery according to each battery modules voltage
When module i electricity takes the lead in being full of, master control borad BCU sends instruction, disconnects relay KiA, after delay, closing relay KiB, by electricity
Pond module i isolates, and only remaining power module is charged.
After battery system electricity is full of, isolation battery modules i is recovered, relay KiB is first disconnected, after delay, closes
Close relay KiA；Disconnect charge relay, always bear relay, system restPoses.
3) discharge
Close preliminary filling relay, always bear relay, system is pre-charged to avoid the capacitive load in power resource loop from being hit
Wear；Treat that precharge is completed, disconnect preliminary filling relay, after delay, close total positive relay, system discharge work；Respectively from control plate BMU
Each battery modules voltage, temperature are gathered in good time, and submit data to give master control borad BCU.
Master control borad BCU calculates module electricity SOC, due to the difference between module, if battery according to each battery modules voltage
Module i shorts of electricity are more, and master control borad BCU sends instruction, disconnect relay KiA, after delay, closing relay KiB, by battery module
I isolates, and when battery module i electricity and other average values are close, disconnects relay KiB, after delay, closing relay KiA, and electricity
Pond module i recovers electric discharge.
Cooling device collects temperature according to master control borad BCU, is turned on and off.It is main when battery modules temperature is more than 45 DEG C
Control plate BCU sends instruction, closure cooling relay, cooling device work；When temperature is reduced to less than 45 DEG C, cooling relay breaks
Open, cooling system is stopped.
4) troubleshooting
When battery modules i failures, when can not recover, master control borad BCU sends instruction, disconnects relay KiA, after delay, closes
Relay KiB is closed, battery module i is thoroughly isolated, and reporting fault battery modules are numbered, system decompression work.
Preliminary filling resistance plays pressure limiting when battery system is pre-charged, breakdown to prevent stopping power resource loop capacitive load.
Main fuse fuses in short circuit, plays circuit protective effect.
Current divider measures battery system operation electric current in real time, and data are submitted into master control borad BCU.
The data that master control borad BCU processing is submitted from each control plate BMU and current divider, are controlled to each relay, and in real time
Data communication is carried out with entire car controller VCU.
The principle of the present invention is on the basis of traditional power battery system, by battery cell module, and battery modules
Increase electrical interlocks relay, and by master control borad BCU centralized managements, can be to battery modules electricity, temperature equalization management and control；Meanwhile
When battery modules failure, when can not recover, it can be isolated, electrokinetic cell system decompression work.
The present invention is by adopting the above-described technical solution, have the advantages that：
Present system can adapt to different environment and different temperature, battery modules electricity, temperature be carried out balanced
Management, when there is local fault, can carry out the electric discharge of automatic adjusument battery modules and charging.
Brief description of the drawings
Fig. 1 is the system line schematic diagram of the embodiment of the present invention；
Embodiment
In order that present disclosure is readily apparent understood, it is right below according to specific embodiment and with reference to accompanying drawing
The present invention is described in further detail.
Automatic adjusument electrokinetic cell system as shown in Figure 1, is made up of several battery units, in each battery unit
Portion is in series with battery modules, from control plate BMU and relay, and each battery cells in series forms battery system, by master control borad BCU collection
Middle management, coordinate control；Include charging terminal, total plus end and total negative terminal in the battery system, charging terminal, which is connected into, to be filled
Circuit, and cooling device and heater are set simultaneously in the charge circuit, cooling device is in series with a cooling fuse,
Heater is in series with a heating fuse；Temperature sensor and electric power detection dress are integrated with described battery unit
Put, temperature sensor and electric quantity detection apparatus are connected with the BMU in the battery unit and provide signal；Described total plus end
A preliminary filling resistance is also associated with, preliminary filling resistance is in parallel with total anode electric relay, the common main fuse for connecting battery unit,
Current divider, current divider series connection total negative terminal relay are additionally provided with the main circuit of battery unit；
Described battery modules are formed by multiple battery core series-parallel connections, battery modules number n according to electric machine controller rated voltage with
Battery modules monomer voltage ratio determines, specific to determine that formula is：N=electric machine controllers rated voltage/battery modules monomer voltage；
Electric machine controller global function voltage is a value range, and its rated voltage is more than battery modules monomer electricity with minimum voltage difference
Pressure；When battery modules design, it should ensure that remaining power module voltage sum is still in motor control when single battery module damages
In device global function voltage range, it is ensured that controller can be depressured work.
Relay KiA and KiB is installed, relay KiA and KiB is electric before i-th of module in described battery modules
Interlocking, and have master control borad BCU centralized Controls；KiA is closed under default condition, and KiB disconnects, and when both switch, should be set rationally
Delay, to avoid causing battery unit short-circuit.
For battery modules electricity, temperature difference:When from control plate BMU detections battery modules electricity, temperature and average value difference
When not bigger, master control borad BCU disconnects KiA according to from plate BMU data are controlled, and after delay, closes KiB, disparate modules are isolated,
And the timely monitor number of modules；When it is close with average value, KiB is disconnected, after delay, KiA is closed, seals in battery system again
Work.
For battery modules section failure, it can not recover, master control borad BMU positions according to from control plate BCU data, disconnects
KiA, after delay, KiB is closed, failure module is thoroughly isolated, and reporting fault battery modules are numbered.
Electrokinetic cell system principal states are as follows：
1) charging detection
Lithium cell charging temperature is 0-45 DEG C, before charging, master control borad BCU detection battery module temperature, if battery temperature is low
In 0 DEG C, heating relay closure, heater starts, battery modules is heated, treat that battery modules reach charging temperature and added
Electrothermal relay disconnects, and system restPoses.
2) charge
Always negative relay, charge relay, battery modules start to charge up closure, respectively gather battery electricity in good time from control plate BMU
Pressure, temperature, and submit data to give master control borad BCU.
Master control borad BCU calculates module electricity SOC, due to the difference between module, if battery according to each battery modules voltage
When module i electricity takes the lead in being full of, master control borad BCU sends instruction, disconnects relay KiA, after delay, closing relay KiB, by electricity
Pond module i isolates, and only remaining power module is charged.
After battery system electricity is full of, isolation battery modules i is recovered, relay KiB is first disconnected, after delay, closes
Close relay KiA；Disconnect charge relay, always bear relay, system restPoses.
3) discharge
Close preliminary filling relay, always bear relay, system is pre-charged to avoid the capacitive load in power resource loop from being hit
Wear；Treat that precharge is completed, disconnect preliminary filling relay, after delay, close total positive relay, system discharge work；Respectively from control plate BMU
Each battery modules voltage, temperature are gathered in good time, and submit data to give master control borad BCU.
Master control borad BCU calculates module electricity SOC, due to the difference between module, if battery according to each battery modules voltage
Module i shorts of electricity are more, and master control borad BCU sends instruction, disconnect relay KiA, after delay, closing relay KiB, by battery module
I isolates, and when battery module i electricity and other average values are close, disconnects relay KiB, after delay, closing relay KiA, and electricity
Pond module i recovers electric discharge.
Cooling device collects temperature according to master control borad BCU, is turned on and off.It is main when battery modules temperature is more than 45 DEG C
Control plate BCU sends instruction, closure cooling relay, cooling device work；When temperature is reduced to less than 45 DEG C, cooling relay breaks
Open, cooling system is stopped.
4) troubleshooting
When battery modules i failures, when can not recover, master control borad BCU sends instruction, disconnects relay KiA, after delay, closes
Relay KiB is closed, battery module i is thoroughly isolated, and reporting fault battery modules are numbered, system decompression work.
Preliminary filling resistance plays pressure limiting when battery system is pre-charged, breakdown to prevent stopping power resource loop capacitive load.
Main fuse fuses in short circuit, plays circuit protective effect.
Current divider measures battery system operation electric current in real time, and data are submitted into master control borad BCU.
The data that master control borad BCU processing is submitted from each control plate BMU and current divider, are controlled to each relay, and in real time
Data communication is carried out with entire car controller VCU.
The principle of the present invention is on the basis of traditional power battery system, by battery cell module, and battery modules
Increase electrical interlocks relay, and by master control borad BCU centralized managements, can be to battery modules electricity, temperature equalization management and control；Meanwhile
When battery modules failure, when can not recover, it can be isolated, electrokinetic cell system decompression work.
Particular embodiments described above, pair present invention solves the technical problem that, technical scheme and beneficial effect carry out
It is further described, should be understood that the specific embodiment that the foregoing is only the present invention, is not limited to this
Invention, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., should be included in this hair
Within bright protection domain.
Claims (7)
1. a kind of automatic adjusument electrokinetic cell system, is made up of several battery units, it is characterised in that each battery list
First inside is in series with battery modules, from control plate BMU and relay, and each battery cells in series forms battery system, by master control borad
BCU centralized management, coordinate control；Include charging terminal, total plus end and total negative terminal in the battery system, charging terminal connects
Enter charging circuit, and cooling device and heater are set simultaneously in the charge circuit, it is molten that cooling device is in series with a cooling
Disconnected device, heater are in series with a heating fuse；Temperature sensor and electricity inspection are integrated with described battery unit
Device is surveyed, temperature sensor and electric quantity detection apparatus are connected with the BMU in the battery unit and provide signal；It is described it is total just
Terminal is also associated with a preliminary filling resistance, and preliminary filling resistance is in parallel with total anode electric relay, the common main molten for connecting battery unit
Break device, and current divider, current divider series connection total negative terminal relay are additionally provided with the main circuit of battery unit；
Described battery modules are formed by multiple battery core series-parallel connections, and battery modules number n is according to electric machine controller rated voltage and battery
Module monomer voltage ratio determines, specific to determine that formula is：N=electric machine controllers rated voltage/battery modules monomer voltage；Motor
Controller global function voltage is a value range, and its rated voltage is more than battery modules monomer voltage with minimum voltage difference；Electricity
During the module design of pond, it should ensure that remaining power module voltage sum is still complete in electric machine controller when single battery module damages
In function voltage range, it is ensured that controller can be depressured work；
Relay KiA and KiB, relay KiA and KiB electrical interlockses are installed before i-th of module in described battery modules,
And there are master control borad BCU centralized Controls；KiA is closed under default condition, and KiB disconnects, and when both switch, should set and reasonably prolong
When, to avoid causing battery unit short-circuit.
2. automatic adjusument electrokinetic cell system as claimed in claim 1, it is characterised in that for battery modules electricity, temperature
Spend difference:When from control plate BMU detections, when battery modules electricity, temperature and bigger average value difference, master control borad BCU according to from
Plate BMU data are controlled, disconnect KiA, after delay, KiB is closed, disparate modules is isolated, and the timely monitor number of modules；When it is with putting down
When average is close, KiB is disconnected, after delay, KiA is closed, seals in battery system operation again.
3. automatic adjusument electrokinetic cell system as claimed in claim 1, it is characterised in that occur for battery modules part
Failure, it can not recover, master control borad BMU positions according to from control plate BCU data, disconnects KiA, after delay, KiB is closed, by failure mould
Group thoroughly isolation, and reporting fault battery modules are numbered.
4. automatic adjusument electrokinetic cell system as claimed in claim 1, it is characterised in that need to carry out charging inspection before charging
To survey, lithium cell charging temperature is 0-45 DEG C, before charging, master control borad BCU detection battery module temperature, if battery temperature is less than 0 DEG C,
Relay closure is heated, heater starts, battery modules are heated, and treats that battery modules reach charging temperature heating relay
Device disconnects, and system restPoses.
5. automatic adjusument electrokinetic cell system as claimed in claim 1, it is characterised in that during charging, close always negative relay
Device, charge relay, battery modules start to charge up, respectively from control plate BMU gather cell voltage, temperature in good time, and submit data to
Master control borad BCU；
Master control borad BCU calculates module electricity SOC, due to the difference between module, if battery modules according to each battery modules voltage
When i electricity takes the lead in being full of, master control borad BCU sends instruction, disconnects relay KiA, after delay, closing relay KiB, by battery mould
Block i isolates, and only remaining power module is charged；
After battery system electricity is full of, to isolation battery modules i recover, first disconnect relay KiB, after delay, close after
Electrical equipment KiA；Disconnect charge relay, always bear relay, system restPoses.
6. automatic adjusument electrokinetic cell system as claimed in claim 1, it is characterised in that during electric discharge, close preliminary filling relay
Device, relay is always born, system is pre-charged to avoid the capacitive load in power resource loop breakdown；Treat that precharge is completed, disconnect
Preliminary filling relay, after delay, close total positive relay, system discharge work；Respectively each battery modules electricity is gathered in good time from control plate BMU
Pressure, temperature, and submit data to give master control borad BCU；
Master control borad BCU calculates module electricity SOC, due to the difference between module, if battery modules according to each battery modules voltage
I shorts of electricity are more, and master control borad BCU sends instruction, disconnect relay KiA, after delay, closing relay KiB, by battery module i every
From, when battery module i electricity and other average values are close, relay KiB is disconnected, after delay, closing relay KiA, battery
Module i recovers electric discharge；
Cooling device collects temperature according to master control borad BCU, is turned on and off；When battery modules temperature is more than 45 DEG C, master control borad
BCU sends instruction, closure cooling relay, cooling device work；When temperature is reduced to less than 45 DEG C, cooling relay disconnects,
Cooling system is stopped.
7. automatic adjusument electrokinetic cell system as claimed in claim 1, it is characterised in that, can not when battery modules i failures
During recovery, master control borad BCU sends instruction, disconnects relay KiA, after delay, closing relay KiB, by battery module i thoroughly every
From, and reporting fault battery modules are numbered, system decompression work；
Preliminary filling resistance plays pressure limiting when battery system is pre-charged, breakdown to prevent stopping power resource loop capacitive load；
Main fuse fuses in short circuit, plays circuit protective effect；
Current divider measures battery system operation electric current in real time, and data are submitted into master control borad BCU；
Master control borad BCU processing from each control plate BMU and current divider submission data, each relay is controlled, and in real time with it is whole
Vehicle controller VCU carries out data communication.
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| CN201710969402.6A CN107887660A (en) | 2017-10-18 | 2017-10-18 | A kind of automatic adjusument electrokinetic cell system |
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| CN201710969402.6A CN107887660A (en) | 2017-10-18 | 2017-10-18 | A kind of automatic adjusument electrokinetic cell system |
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| CN109228874A (en) * | 2018-08-27 | 2019-01-18 | 北京长城华冠汽车科技股份有限公司 | A kind of power battery protection system and electric car |
| CN110350625A (en) * | 2019-07-28 | 2019-10-18 | 王京 | A kind of energy-storage system and its control method |
| CN110581576A (en) * | 2018-06-11 | 2019-12-17 | 银隆新能源股份有限公司 | Charging circuit for balancing voltage difference between battery modules and charging method thereof |
| CN110649678A (en) * | 2019-10-11 | 2020-01-03 | 联方云天科技(珠海)有限公司 | High-voltage battery system |
| CN111361420A (en) * | 2020-03-19 | 2020-07-03 | 湖北亿纬动力有限公司 | Power battery system and electric automobile |
| CN111959280A (en) * | 2020-08-31 | 2020-11-20 | 中车大连机车车辆有限公司 | Power battery safety protection system and safety protection method |
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