CN107332296A - A kind of lithium battery for electric vehicle charging method - Google Patents
A kind of lithium battery for electric vehicle charging method Download PDFInfo
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- CN107332296A CN107332296A CN201710438334.0A CN201710438334A CN107332296A CN 107332296 A CN107332296 A CN 107332296A CN 201710438334 A CN201710438334 A CN 201710438334A CN 107332296 A CN107332296 A CN 107332296A
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- lithium battery
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 141
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 141
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000004891 communication Methods 0.000 claims abstract description 52
- 238000007689 inspection Methods 0.000 claims abstract description 25
- 238000012545 processing Methods 0.000 claims abstract description 5
- 238000012795 verification Methods 0.000 claims abstract description 5
- 239000000284 extract Substances 0.000 claims abstract 2
- 238000012937 correction Methods 0.000 claims description 11
- 230000001186 cumulative effect Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 6
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 241000208340 Araliaceae Species 0.000 claims 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims 1
- 235000003140 Panax quinquefolius Nutrition 0.000 claims 1
- 235000008434 ginseng Nutrition 0.000 claims 1
- 230000005611 electricity Effects 0.000 description 6
- 238000005070 sampling Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
Classifications
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
-
- 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
-
- 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
- H01M10/443—Methods for charging or discharging in response to temperature
-
- 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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- H02J7/0077—
-
- H02J7/0091—
-
- 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
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The present invention relates to a kind of lithium battery for electric vehicle charging method, comprise the following steps：It is electric on charger；Charger self-inspection；Charger and BMS communication connections；Charger and BMS carry out data communication, and BMS sends the status information data of lithium battery group to charger；Charger carries out data redundancy verification；Charger carries out data processing, extracts the status information of lithium battery group, according to the status information of lithium battery group, judges that the charging of lithium battery group, by state, sets charge parameter；Charger opens output end, and by the charge parameter of setting, lithium battery group is charged, and in the setting cycle, cyclically carries out communication connection with BMS.The present invention is by the way that charger is connected with BMS, periodically gather lithium battery group status information, charger adjusts charge parameter to lithium cell charging, the service life of lithium battery is also extended while lithium battery security performance is improved in real time on one's own initiative according to the battery core state of lithium battery.
Description
Technical field
The present invention relates to lithium cell charging technical field, more particularly to a kind of lithium battery for electric vehicle charging method.
Background technology
Lithium battery is wide the characteristics of with high security, high stability, long-life and environmental protection as a kind of novel battery
It is general to be applied to the fields such as electric car and energy vehicle.Existing lithium battery for electric vehicle charger is right in charging in the market
The sampling value of lithium battery for electric vehicle group state value depends entirely on the sample point road for being built in charger, and sampling value now is only
Including current value and magnitude of voltage, not including temperature value, and sampling value now is electric for the numerical value rather than electronic vehicle lithium of charger
The voltage of the state value of pond group, the in addition line loss in the precision and circuit of sample circuit, this numerical value and electric car battery core
Value and current value have deviation, are easily caused the undercharge of lithium battery for electric vehicle, influence the work of lithium battery for electric vehicle
Make efficiency.Meanwhile, in default of the sampling to temperature, the thermal runaway of lithium battery for electric vehicle charging process is easily caused, seriously
When may result in danger generation.Such charging working method is taken for a long time, equally can also greatly reduce electric car
With the life-span of lithium battery.
The content of the invention
To solve existing technical problem, the invention provides a kind of lithium battery for electric vehicle charging method.
The particular content of the present invention is as follows：A kind of lithium battery for electric vehicle charging method, charging device includes charger, led to
Interrogate bus, BMS, lithium battery group and temperature sensor, lithium battery group is by specification is identical, quantity identical lithium battery electric core parallel connection is in
Be composed in series after single lithium battery, the output end of charger, BMS main circuit, lithium battery group are sequentially connected and connect, charger it is logical
News end is connected by communication bus with BMS communication terminal, and BMS detection port and single lithium battery are in parallel respectively, and temperature is passed
Sensor is connected on BMS detection port, BMS, lithium battery group, temperature sensor composition lithium battery for electric vehicle,
Comprise the following steps：
Step (1)：It is electric on charger；
Step (2)：Charger self-inspection, checks whether charger itself working condition is normal；
Step (3)：Charger and BMS communication connections；
Step (4)：Charger and BMS carry out data communication, and BMS sends the status information number of lithium battery group to charger
According to；
Step (5)：Charger carries out data redundancy verification, checks that process of data communication has inerrancy；
Step (6)：Charger carries out data processing, the status information of lithium battery group is extracted, according to the state of lithium battery group
Information, judges that the charging of lithium battery group, by state, sets charge parameter；
Step (7)：Charger opens output end, and by the charge parameter of setting, lithium battery group is charged, and in setting
Cycle, cyclically with BMS carry out communication connection；Communication cycle is 0.01s-60s.
Further, in step (2), if unsuccessful numerical value of self-inspection is zeroed by self-inspection success, charger, and enter
Next step；If self-inspection is unsuccessful, charger carries out correction process, and add up the unsuccessful number of times of self-inspection and and the first setting value ratio
Compared with if the unsuccessful number of times of self-inspection is less than the first setting value, charger re-starts self-inspection；If the unsuccessful number of times of self-inspection is not small
In the first setting value, charger interrupts and shows mistake；First setting value is 1-50 times.
Further, in step (3), if communication successful connection, charger, which will be communicated, connects unsuccessful number of times zero,
Into next step data communication；If communicating successful connection, charger carries out correction process, and add up the unsuccessful number of times of communication connection
And compare with the second setting value, if communication unsuccessful numerical value of connection is less than the second setting value, charger is carried out with BMS again
Communication connection；If the unsuccessful number of times of communication connection is not less than the second setting value, charger interrupts and shows mistake；Second setting
It is worth for 1-50 times.
Further, in step (4), the status information of lithium battery group includes the quantity and voltage of single lithium battery, lithium
The electric current and temperature of battery pack.
Further, in step (5), if redundancy check passes through, charger returns the secondary numerical value that redundancy check does not pass through
Zero, and enter next step；If redundancy check does not pass through, charger carries out correction process, and the data that redundancy check does not pass through are lost
Abandon, and the secondary numerical value that cumulative redundancy check does not pass through, if the secondary numerical value that redundancy check does not pass through is less than the 3rd setting value, charger
Communication is re-started with BMS to be connected；If the number of times that redundancy check does not pass through is not less than the 3rd setting value, charger is interrupted and shown
Mistake；3rd setting value is 1-50 times.
Further, in step (6), the charged state of lithium battery group includes charging complete state, forbids charged state
And charged state, the monomer voltage that charging complete state refers to lithium battery group reaches 4.2V and charging current is less than 1A；Forbid charging
State includes：The temperature of lithium battery group is less than -10 DEG C or higher than 60 DEG C, and single lithium battery voltage is less than 2.5V or higher than 4.2V,
The ceiling voltage and minimum voltage difference of cell are more than 0.3V；Charged state refers to lithium battery group and had both been not at charging complete shape
State, not also in forbidding charged state.
Further, in step (6), if the lithium battery group is in charging complete state, charger stops charging, and
Show charging complete；If the lithium battery group is in charged state, lithium battery is in by the charger forbids charged state
Counting value returns, and charge parameter is set, into next step；If the lithium battery group, which is in, forbids charged state, enter and entangle
Fault is managed, and the charger is cumulative to forbid the number of times of charging, and compares with the 4th setting value, if forbidding charging times value to be less than the
Four setting values, the charger and the BMS re-start communication connection, if forbidding charging times value to be not less than the 4th setting
Value, the charger is interrupted, and charging is forbidden in display；4th setting value is 1-50 times.
Further, in step (6), charge parameter includes：
The temperature of the lithium battery group is at -10 DEG C -0 DEG C, and the charger is with normal charge mode maximum charging current
10% -50% pair of battery pack enters line precharge；
The temperature of the lithium battery group is at 0 DEG C -50 DEG C, and the charger is charged with normal charge mode to lithium battery group；
The temperature of the lithium battery group is at 50 DEG C -60 DEG C, and the charger is with the maximum allowable charging electricity of normal charge mode
The 30%-80% of stream charges to the lithium battery group；
The voltage of the cell is in 2.5V -3V, the charger maximum allowable charging current in the normal mode
10% -50% pair of lithium battery group enters line precharge；
The voltage of the cell is in 3V -4.2V, and the charger is filled with normal charge mode to the lithium battery group
Electricity.
Beneficial effects of the present invention：By the way that charger is connected with BMS, lithium battery group state letter is periodically gathered
Breath, carries out discharge and recharge when eligible, while not allowing illegal charging.Charging modes to lithium battery are passive by charger
Ground is defeated by lithium cell charging according to preset value and changes into charger on one's own initiative according to the battery core state of lithium battery, and adjustment in real time is filled
Electrical parameter is to lithium cell charging, so as to both protect the security of lithium cell charging process, in turn ensure that the charge efficiency of lithium battery,
The service life of lithium battery is also extended while lithium battery security performance is improved.
Brief description of the drawings
The embodiment to the present invention is further elucidated below in conjunction with the accompanying drawings.
Fig. 1 is the lithium battery of the present invention and the connection diagram of charger；
Fig. 2 is the schematic flow sheet of the lithium battery for electric vehicle charging method of the present invention.
Embodiment
With reference to Fig. 1 and Fig. 2, a kind of lithium battery for electric vehicle charging method of the invention, charging device include charger 1,
Communication bus 2, BMS, lithium battery group 3 and temperature sensor 4, lithium battery group 3 is by specification is identical, quantity identical lithium battery electric core
Parallel connection after single lithium battery in being composed in series, and the output end of charger 1, BMS main circuit, lithium battery group 3 are sequentially connected and connect, and fill
The communication terminal of electrical equipment 1 is connected by communication bus 2 with BMS communication terminal, and BMS detection port and single lithium battery difference are simultaneously
Connection, temperature sensor 4 is connected on BMS detection port, and BMS, lithium battery group 3, temperature sensor 4 constitute electronic vehicle lithium electricity
Pond,
Charging process comprises the following steps：
Step (1)：It is electric on charger 1；
Step (2)：The self-inspection of charger 1, checks whether itself working condition of charger 1 is normal；
Step (3)：Charger 1 and BMS communication connections；
Step (4)：Charger 1 and BMS carry out data communication, and BMS sends the status information of lithium battery group 3 to charger 1
Data；
Step (5)：Charger 1 carries out data redundancy verification, checks that process of data communication has inerrancy；
Step (6)：Charger 1 carries out data processing, the status information of lithium battery group 3 is extracted, according to the shape of lithium battery group 3
State information, judges that the charging of lithium battery group 3, by state, sets charge parameter；
Step (7)：Charger 1 opens output end, and by the charge parameter of setting, lithium battery group 3 is charged, and is setting
Fixed cycle, cyclically carries out communication connection with BMS；Communication cycle is 0.01s-60s.
The present embodiment is preferred, in step (2), if self-inspection success, charger 1 returns unsuccessful numerical value of self-inspection
Zero, and enter next step；If self-inspection is unsuccessful, charger 1 carries out correction process, and add up the unsuccessful number of times of self-inspection and and first
Setting value compares, if the unsuccessful number of times of self-inspection is less than the first setting value, charger 1 re-starts self-inspection；If self-inspection is unsuccessful
Number of times be not less than the first setting value, charger 1 interrupts and shows mistake；First setting value is 1-50 times.
The present embodiment is preferred, in step (3), if communication successful connection, charger 1 will communicate unsuccessful time of connection
Number zero, into next step data communication；If communication successful connection, charger 1 carry out correction process, add up communication connection not into
The number of times of work(simultaneously compares with the second setting value, if communication unsuccessful numerical value of connection is less than the second setting value, charger 1 is again
Communication connection is carried out with BMS；If the unsuccessful number of times of communication connection is not less than the second setting value, charger 1 interrupts and shows mistake
By mistake；Second setting value is 1-50 times.
The present embodiment is preferred, in step (4), the status information of lithium battery group 3 include single lithium battery quantity and
Voltage, the electric current and temperature of lithium battery group 3.
The present embodiment is preferred, in step (5), if redundancy check passes through, time that charger 1 does not pass through redundancy check
Numerical value is zeroed, and enters next step；If redundancy check does not pass through, charger 1 carries out correction process, and redundancy check is not passed through
Data are abandoned, and the secondary numerical value that cumulative redundancy check does not pass through, if the secondary numerical value that redundancy check does not pass through is less than the 4th setting value,
Charger 1 re-starts communication with BMS and is connected；If the number of times that redundancy check does not pass through is not less than in the 4th setting value, charger 1
Break and show mistake；4th setting value is 1-50 times.
The present embodiment is preferred, and in step (6), the charged state of lithium battery group 3 includes charging complete state, forbids filling
Electricity condition and charged state, the monomer voltage that charging complete state refers to lithium battery group 3 reaches 4.2V and charging current is less than 1A；Prohibit
Only charged state includes：The temperature of lithium battery group 3 is less than -10 DEG C or higher than 60 DEG C, and single lithium battery voltage is less than 2.5V or high
In 4.2V, the ceiling voltage and minimum voltage difference of cell are more than 0.3V；Charged state refers to lithium battery group 3 and is both not at filling
Electric completion status, not also in forbidding charged state.
The present embodiment is preferred, and in step (6), if lithium battery group 3 is in charging complete state, charger 1 stops filling
Electricity, and show charging complete；If lithium battery group 3 is in charged state, lithium battery is in the meter for forbidding charged state by charger 1
Numerical value is zeroed, and sets charge parameter, into next step；If lithium battery group 3, which is in, forbids charged state, at error correction
Reason, charger 1 is cumulative to forbid the number of times of charging, and compares with setting value, if forbidding charging times value to be less than setting value, charger
1 and BMS re-starts communication connection, if forbidding charging times value to be not less than setting value, charger 1 is interrupted, and display is forbidden filling
Electricity.
The present embodiment is preferred, and in step (6), charge parameter includes：
The temperature of lithium battery group 3 at -10 DEG C -0 DEG C, charger 1 with the 10% of normal charge mode maximum charging current -
50% pair of battery pack enters line precharge；
The temperature of lithium battery group 3 is at 0 DEG C -50 DEG C, and charger 1 is charged with normal charge mode to lithium battery group 3；
The temperature of lithium battery group 3 is at 50 DEG C -60 DEG C, and charger 1 is with the maximum allowable charging current of normal charge mode
30%-80% charges to the lithium battery group 3；
The voltage of cell in 2.5V -3V, charger 1 in the normal mode maximum allowable charging current 30% -
40% pair of lithium battery group 3 enters line precharge；
The voltage of cell is charged in 3V -4.2V, charger 1 with normal charge mode to the lithium battery group 3.
Many details are elaborated in the above description to facilitate a thorough understanding of the present invention, still above description is only
Presently preferred embodiments of the present invention, the invention can be embodied in many other ways as described herein, therefore this
Invention is not limited by specific implementation disclosed above.Any those skilled in the art are not departing from the technology of the present invention simultaneously
In the case of aspects, all make many possible to technical solution of the present invention using the methods and techniques content of the disclosure above
Change and modify, or be revised as the equivalent embodiment of equivalent variations.Every content without departing from technical solution of the present invention, according to this
The technical spirit of invention still falls within skill of the present invention to any simple modifications, equivalents, and modifications made for any of the above embodiments
In the range of the protection of art scheme.
Claims (8)
1. a kind of lithium battery for electric vehicle charging method, it is characterised in that：Charging device include charger, communication bus, BMS,
Lithium battery group and temperature sensor, lithium battery group is by specification is identical, the parallel connection of quantity identical lithium battery electric core is in single lithium battery
After be composed in series, the output end of charger, BMS main circuit, lithium battery group are sequentially connected and connect, and the communication terminal of charger passes through logical
News bus is connected with BMS communication terminal, and BMS detection port and single lithium battery are in parallel respectively, and temperature sensor is connected to
On BMS detection port, BMS, lithium battery group, temperature sensor composition lithium battery for electric vehicle,
Charging process comprises the following steps：
Step (1)：It is electric on charger；
Step (2)：Charger self-inspection, checks whether charger itself working condition is normal；
Step (3)：Charger and BMS communication connections；
Step (4)：Charger and BMS carry out data communication, and BMS sends the status information data of lithium battery group to charger；
Step (5)：Charger carries out data redundancy verification, checks that process of data communication has inerrancy；
Step (6)：Charger carries out data processing, extracts the status information of lithium battery group, according to the status information of lithium battery group,
Judge that the charging of lithium battery group, by state, sets charge parameter；
Step (7)：Charger opens output end, and by the charge parameter of setting, lithium battery group is charged, and by the logical of setting
In the news cycle, cyclically carry out communication connection with BMS；Communication cycle is 0.01s-60s.
2. lithium battery for electric vehicle charging method according to claim 1, it is characterised in that：In step (2), if self-inspection
Unsuccessful numerical value of self-inspection is zeroed by success, charger, and enters next step；If self-inspection is unsuccessful, charger carries out error correction
Processing, the cumulative unsuccessful number of times of self-inspection simultaneously compares with the first setting value, if the unsuccessful number of times of self-inspection is less than the first setting value,
Charger re-starts self-inspection；If the unsuccessful number of times of self-inspection is not less than the first setting value, charger interrupts and shows mistake；The
One setting value is 1-50 times.
3. lithium battery for electric vehicle charging method according to claim 1, it is characterised in that：In step (3), if communication
Successful connection, charger, which will be communicated, connects unsuccessful number of times zero, into next step data communication；If communicating successful connection,
Charger carries out correction process, and the unsuccessful number of times of cumulative communication connection simultaneously compares with the second setting value, if communication connection not into
The secondary numerical value of work(is less than the second setting value, and charger carries out communication connection with BMS again；If the unsuccessful number of times of communication connection is not
Less than the second setting value, charger interrupts and shows mistake；Second setting value is 1-50 times.
4. lithium battery for electric vehicle charging method according to claim 1, it is characterised in that：In step (4), lithium battery
The status information of group includes the quantity and voltage of single lithium battery, the electric current and temperature of lithium battery group.
5. lithium battery for electric vehicle charging method according to claim 1, it is characterised in that：In step (5), if redundancy
Verification passes through, and the secondary numerical value that redundancy check does not pass through is zeroed by charger, and enters next step；If redundancy check does not pass through, fill
Electrical equipment carries out correction process, and the data that redundancy check does not pass through are abandoned, and the secondary numerical value that cumulative redundancy check does not pass through, if superfluous
The remaining secondary numerical value not passed through that verifies is less than the 3rd setting value, and charger re-starts communication with BMS and is connected；If redundancy check is obstructed
The number of times crossed is not less than the 3rd setting value, and charger interrupts and shows mistake；3rd setting value is 1-50 times.
6. lithium battery for electric vehicle charging method according to claim 1, it is characterised in that：In step (6), lithium battery
The charged state of group includes charging complete state, forbids charged state and charged state, and charging complete state refers to lithium battery group
Monomer voltage reaches 4.2V and charging current is less than 1A；Charged state is forbidden to include：The temperature of lithium battery group is less than -10 DEG C or high
In 60 DEG C, single lithium battery voltage is less than 2.5V or higher than 4.2V, and the ceiling voltage and minimum voltage difference of cell are more than
0.3V；Charged state refers to lithium battery group and had both been not at charging complete state, not also in forbidding charged state.
7. lithium battery for electric vehicle charging method according to claim 6, it is characterised in that：In step (6), if described
Lithium battery group is in charging complete state, and charger stops charging, and shows charging complete；If the lithium battery group is in charging
State, lithium battery is in by the charger forbids the counting value returns of charged state, and sets charge parameter, into next
Step；If the lithium battery group, which is in, forbids charged state, into correction process, the charger is cumulative to forbid the secondary of charging
Number, and compare with the 4th setting value, if forbidding charging times value to be less than the 4th setting value, the charger and the BMS are again
Communication connection is carried out, if forbidding charging times value to be not less than the 4th setting value, the charger is interrupted, and charging is forbidden in display；
4th setting value is 1-50 times.
8. lithium battery for electric vehicle charging method according to claim 1, it is characterised in that：In step (6), charging ginseng
Number includes：
The temperature of the lithium battery group is at -10 DEG C -0 DEG C, and the charger is with normal charge mode maximum charging current
10% -50% pair of battery pack enters line precharge；
The temperature of the lithium battery group is at 0 DEG C -50 DEG C, and the charger is charged with normal charge mode to lithium battery group；
The temperature of the lithium battery group is at 50 DEG C -60 DEG C, and the charger is with the maximum allowable charging current of normal charge mode
30%-80% charges to the lithium battery group；
The voltage of the cell in 2.5V -3V, the charger in the normal mode maximum allowable charging current 10% -
50% pair of lithium battery group enters line precharge；
The voltage of the cell is in 3V -4.2V, and the charger is charged with normal charge mode to the lithium battery group.
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| CN108470915A (en) * | 2018-03-20 | 2018-08-31 | 福州鼎烯飞扬科技有限公司 | A kind of Intelligent electric bicycle quick charging battery packet and its charging method |
| CN114084045A (en) * | 2021-11-10 | 2022-02-25 | 轻橙时代(深圳)科技有限责任公司 | Power battery life cycle management method |
| CN114825556A (en) * | 2022-05-30 | 2022-07-29 | 东莞市峰谷科技有限公司 | Portable charging and discharging instrument based on battery management system and control method thereof |
| CN117022021A (en) * | 2023-08-11 | 2023-11-10 | 北京达三江电器设备厂 | Power box for charging electric tricycle |
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| CN108470915A (en) * | 2018-03-20 | 2018-08-31 | 福州鼎烯飞扬科技有限公司 | A kind of Intelligent electric bicycle quick charging battery packet and its charging method |
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