CN108710085A - A kind of monomer Selection method and system to be equalized of power battery - Google Patents
A kind of monomer Selection method and system to be equalized of power battery Download PDFInfo
- Publication number
- CN108710085A CN108710085A CN201810576472.XA CN201810576472A CN108710085A CN 108710085 A CN108710085 A CN 108710085A CN 201810576472 A CN201810576472 A CN 201810576472A CN 108710085 A CN108710085 A CN 108710085A
- Authority
- CN
- China
- Prior art keywords
- monomer
- battery
- balanced
- battery cell
- minimum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Tests Of Electric Status Of Batteries (AREA)
- Secondary Cells (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention provides a kind of monomer Selection method and system to be equalized of power battery, and this method includes：Under vehicle after electricity, judge whether the condition of the battery cell measurement open-circuit voltage OCV of power battery meets, if it is, waking up battery management controller, and obtains the minimum monomer voltage of battery cell and minimum monomer temperature；According to the minimum monomer voltage and the minimum monomer temperature, inquiry OCV corresponds to table and obtains minimum monomer SOC value；Judge whether the minimum monomer SOC value meets balanced monomer Selection condition, if it is, obtaining the difference of the SOC value and the minimum monomer SOC value of each battery cell in power battery；If the difference is greater than or equal to given threshold, corresponding battery cell, juxtaposition equilibrium flag bit are filtered out.The present invention can improve the accuracy of balanced monomer Selection, and the consistency of power battery can be improved, increase service life and the safety of power battery.
Description
Technical field
The present invention relates to the power battery technology field of electric vehicle more particularly to a kind of monomers to be equalized of power battery
Screening technique and system.
Background technology
In recent years, with energy consumption and environmental requirement, electric vehicle is rapidly progressed, and power battery is electronic
One of core component of automobile.In battery management system, it is desirable that the monomer consistency of power battery is high, can just meet in this way
The job requirement of entire battery pack Uniform Discharge.If the monomer consistency of power battery is poor, by cause battery pack power and
Capacity utilization declines, and then reduces the continual mileage of electric vehicle, limits promoting the use of for electric vehicle.In order to improve power
Battery with two side terminals now mainly uses balancing technique, that is, reduces the difference of battery highest monomer voltage and minimum monomer voltage, to protect
The output voltage for holding battery cell is equal.Therefore, the monomer Selection technology to be equalized of battery cell, for the reliable of power battery
The influence of property and service life plays a crucial role.
Balanced monomer Selection is indispensable work before equilibrium, i.e., goes out to need balanced monomer by certain Rules Filtering, go forward side by side
Line flag carries out labeled monomer battery powers on next time when balanced.The method of existing screening monomer to be equalized, is mainly adopted
With voltage screening method, it is marked to being higher than a certain voltage limits monomer, then powered in next primary cell in latter stage of charging
Shi Jinhang is balanced；This method is on the one hand due to being carried out in latter stage of charging, if completely to fill number less by client, can reduce balanced several
Rate；On the other hand, due in charging process battery have larger polarization, at this time battery pressure difference performance cannot represent real electricity
Pond inconsistency is easy to happen mis-marked.
Invention content
The present invention provides a kind of monomer Selection method and system to be equalized of power battery, solves the equal of existing power battery
Easily there is inaccurate and mis-marked problem in weighing apparatus monomer Selection, and the consistency of power battery can be improved, increase making for power battery
With service life and safety.
In order to achieve the above object, the present invention provides following technical scheme：
A kind of monomer Selection method to be equalized of power battery, including：
Under vehicle after electricity, judge whether the condition of the battery cell measurement open-circuit voltage OCV of power battery meets, if
It is then to wake up battery management controller, and obtain the minimum monomer voltage of battery cell and minimum monomer temperature；
According to the minimum monomer voltage and the minimum monomer temperature, inquiry OCV corresponds to table and obtains minimum monomer SOC
Value；
Judge whether the minimum monomer SOC value meets balanced monomer Selection condition, if it is, obtaining in power battery
Each battery cell SOC value and the minimum monomer SOC value difference；
If the difference is greater than or equal to given threshold, corresponding battery cell, juxtaposition equilibrium flag bit are filtered out.
Preferably, further include：
According to the rated capacity of the battery cell filtered out and battery balanced electric current, it is calculated equal needed for battery cell
It weighs remaining time；
The flash of the balanced flag bit and balanced remaining time storage to the battery management controller is stored
In device；
If successfully stored, set stores Success Flag position.
Preferably, further include：
When vehicle powers on again, the balanced flag bit is obtained according to the storage Success Flag position and the equilibrium is surplus
The remaining time；
Balance route is carried out to the corresponding battery cell of the equilibrium flag bit, and according to the described equal of each battery cell
It weighs the remaining time determination balanced deadline.
Preferably, the battery cell of the power battery measures the condition of open-circuit voltage OCV, including：
Power battery keeps whether the time of static condition is more than 1h；
Whether the largest battery monomer temperature of power battery and the difference of minimum battery cell temperature are less than or equal to setting
Temperature threshold；
Whether entire car controller has been in wake-up states.
Preferably, the inquiry OCV corresponds to table and obtains minimum monomer SOC value, including：
According to the correspondence of the state-of-charge SOC value of battery cell and the open-circuit voltage OCV of battery cell, described in foundation
OCV corresponds to table；
Table, inquiry minimum battery cell voltage pair in the minimum battery cell temperature are corresponded to according to the OCV
The minimum monomer SOC value answered.
Preferably, the balanced monomer Selection condition includes：
The minimum monomer SOC value is greater than or equal to 50%, and the minimum monomer SOC value be less than with the sum of 1.5% or
Equal to 100%.
Preferably, the set temperature threshold value is 3 DEG C, and the given threshold is 1.5%.
The present invention also provides a kind of monomer Selection systems to be equalized of power battery, including：
Acquiring unit is used for after electricity under vehicle, and the battery cell for meeting power battery measures the item of open-circuit voltage OCV
When part, the minimum monomer voltage of battery cell and minimum monomer temperature are obtained；
Wakeup unit for allowing vehicle-mounted T-BOX to wake up entire car controller after electricity under vehicle, and passes through the full-vehicle control
Device wakes up battery management controller；
SOC computing units, for according to the minimum monomer voltage and the minimum monomer temperature, inquiry OCV to correspond to table
Obtain minimum monomer SOC value；
Screening unit, for when the minimum monomer SOC value meets balanced monomer Selection condition, obtaining in power battery
Each battery cell SOC value and the minimum monomer SOC value difference, and be greater than or equal to given threshold in the difference
When filter out and corresponding battery cell and set balanced flag bit.
Preferably, further include：
Time for balance unit, for according to the rated capacity of battery cell and battery balanced electric current filtered out, calculating
To the balanced remaining time needed for battery cell；
Storage unit, for controlling the balanced flag bit and the balanced remaining time storage to the battery management
In the flash memory of device, the set storage Success Flag position when successfully storing.
Preferably, further include：
Reading unit, for when vehicle powers on again, the balanced mark to be obtained according to the storage Success Flag position
Position and the balanced remaining time；
Balance route unit, for carrying out Balance route to the corresponding battery cell of the equilibrium flag bit, and according to each
The balanced remaining time of a battery cell determines the balanced deadline.
The present invention provides a kind of monomer Selection method and system to be equalized of power battery, passes through the minimum to power battery
Monomer SOC value, when its difference is equal to given threshold greatly, filters out electricity to be equalized compared with the SOC value of other battery cells
Pond monomer.It is inaccurate and mis-marked to solve the problems, such as that the balanced monomer Selection of existing power battery easily occurs, power electric can be improved
The consistency in pond increases service life and the safety of power battery.
Description of the drawings
In order to illustrate more clearly of specific embodiments of the present invention, attached drawing needed in the embodiment will be made below
Simply introduce.
Fig. 1：It is a kind of monomer Selection method flow diagram to be equalized of power battery provided by the invention.
Specific implementation mode
In order to make those skilled in the art more fully understand the scheme of the embodiment of the present invention, below in conjunction with the accompanying drawings and implement
Mode is described in further detail the embodiment of the present invention.
Often there is inaccurate and mis-marked problem for the monomer Selection to be equalized of current power battery, the present invention provides
A kind of monomer Selection method and system to be equalized of power battery pass through minimum monomer SOC value to power battery and other electricity
The SOC value of pond monomer compares, and when its difference is equal to given threshold greatly, filters out battery cell to be equalized.It solves existing dynamic
Easily there is inaccurate and mis-marked problem in the balanced monomer Selection of power battery, and the consistency of power battery can be improved, and increases dynamic
The service life of power battery and safety.
As shown in Figure 1, a kind of monomer Selection method to be equalized of power battery, includes the following steps：
S1：Under vehicle after electricity, judge whether the condition of the battery cell measurement open-circuit voltage OCV of power battery meets, such as
Fruit is then to wake up battery management controller, and obtain the minimum monomer voltage of battery cell and minimum monomer temperature；
S2：According to the minimum monomer voltage and the minimum monomer temperature, inquiry OCV corresponds to table and obtains minimum monomer
SOC value；
S3：Judge whether the minimum monomer SOC value meets balanced monomer Selection condition, if it is, obtaining power electric
The difference of the SOC value of each battery cell in pond and the minimum monomer SOC value；
S4：If the difference is greater than or equal to given threshold, corresponding battery cell, juxtaposition equilibrium mark are filtered out
Position.
Further, this method further includes：
S5：According to the rated capacity of the battery cell filtered out and battery balanced electric current, it is calculated needed for battery cell
Balanced remaining time；
S6：The balanced flag bit and the balanced remaining time are stored into the flash to the battery management controller
In memory；
S7：If successfully stored, set stores Success Flag position.
This method further includes：
S8：When vehicle powers on again, according to the storage Success Flag position obtain the balanced flag bit and it is described
It weighs remaining time；
S9：Balance route is carried out to the corresponding battery cell of the equilibrium flag bit, and according to the institute of each battery cell
State the balanced remaining time determination balanced deadline.
Further, the battery cell of the power battery measures the condition of open-circuit voltage OCV, including：
S11：Power battery keeps whether the time of static condition is more than 1h.
S12：Whether the largest battery monomer temperature of power battery and the difference of minimum battery cell temperature are less than or equal to
Set temperature threshold value.
S13：Whether entire car controller has been in wake-up states.
Further, the inquiry OCV corresponds to table and obtains minimum monomer SOC value, including：
S21：According to the correspondence of the state-of-charge SOC value of battery cell and the open-circuit voltage OCV of battery cell, establish
The OCV corresponds to table.
S22：Table, inquiry minimum battery cell electricity in the minimum battery cell temperature are corresponded to according to the OCV
Press the corresponding minimum monomer SOC value.
Specifically, according to the electrochemical properties of battery, state-of-charge SOC value and its open-circuit voltage OCV of battery have specific
Correspondence, therefore can obtain its accurate SOC value by measuring the OCV of battery.OCV values generally take battery to keep quiet
State is set more than the minimum terminal voltage of battery cell after 1h.After the lower electricity of corresponding actual vehicle operational process, i.e. parking is more than 1h, vehicle
The moment collected monomer voltage minimum powered on again, as the OCV values of battery.At different temperatures by power battery
SOC value is corresponding with OCV values, and establishes OCV and correspond to table, and accurate minimum can be obtained by corresponding to table according to the OCV values of actual measurement inquiry OCV
Monomer SOC value.By the way that the SOC value of other battery cells in power battery compares with minimum monomer SOC value, difference is big
When given threshold, then meet monomer Selection to be equalized.This method can make battery screening to be equalized more acurrate, make power battery
Consistency is protected, and improves service life and the safety of power battery.
It is described equilibrium monomer Selection condition include：The minimum monomer SOC value is greater than or equal to 50%, and described minimum single
Body SOC value is less than or equal to 100% with the sum of 1.5%.
In practical applications, the set temperature threshold value is 3 DEG C, and the given threshold is 1.5%.With certain model ternary electricity
For the pure electric sedan of pond, this method is described in detail：
1) monomer to be equalized is screened
1. by electric under vehicle.
2. being 09 after 1h:When 00, VCU (entire car controller) is waken up by T-BOX, VCU wakes up LBC, and (battery management controls
Device).
3. judging battery temperature difference △ T=2 DEG Cs <3 DEG C, and without pressure difference failure.
4. reading Vmin=3.845V, Tmin=25 DEG C, inquiry battery OCV corresponds to meter and calculates SOC, and SOC is calculatedmin=
68.1%.
5. judging SOCmin=68.1%>=50% and (SOCmin+ 1.5%=69.6%)s <=100% meets condition.
6. inquiry OCV corresponds to table, often section monomer SOC and SOC is calculatedminDifference, filter out the monomer 1,5,10, No. 15
Meet Cha Zhi >=1.5%, then 4 monomers set balanced flag bit.
7. according to battery rated capacity C=150AH and battery balanced electric current I=10mA, remaining time for balance t=is calculated
0.5%C/I=75h.
8. by balanced flag bit and balanced remaining time storage to flash memory.
9. storing successfully set storage successful equalization flag bit.
2) equilibrium filters out monomer
Vehicle powers on again, is carried out to marked monomer balanced.
As it can be seen that the present invention provides a kind of monomer Selection method to be equalized of power battery, pass through the minimum to power battery
Monomer SOC value, when its difference is equal to given threshold greatly, filters out electricity to be equalized compared with the SOC value of other battery cells
Pond monomer.It is inaccurate and mis-marked to solve the problems, such as that the balanced monomer Selection of existing power battery easily occurs, power electric can be improved
The consistency in pond increases service life and the safety of power battery.
The present invention also provides a kind of monomer Selection systems to be equalized of power battery, including：Acquiring unit, in vehicle
After lower electricity, and when the battery cell for meeting power battery measures the condition of open-circuit voltage OCV, the minimum monomer of battery cell is obtained
Voltage and minimum monomer temperature.Wakeup unit for allowing vehicle-mounted T-BOX to wake up entire car controller after electricity under vehicle, and passes through
The entire car controller wakes up battery management controller.SOC computing units, for according to the minimum monomer voltage and it is described most
Low monomer temperature, inquiry OCV correspond to table and obtain minimum monomer SOC value.Screening unit, for full in the minimum monomer SOC value
When foot equilibrium monomer Selection condition, the SOC value of each battery cell in power battery and the minimum monomer SOC value are obtained
Difference, and filter out corresponding battery cell when the difference is greater than or equal to given threshold and set balanced flag bit.
The system further includes：Time for balance unit, for equal according to the rated capacity and battery of the battery cell filtered out
Weigh electric current, and the balanced remaining time needed for battery cell is calculated.Storage unit, for by the balanced flag bit and described
In the storage to the flash memory of the battery management controller of balanced remaining time, when successfully storing set store successfully
Flag bit.
The system further includes：Reading unit, for when vehicle powers on again, being obtained according to the storage Success Flag position
The equilibrium flag bit and the balanced remaining time.Balance route unit, for the corresponding battery of the equilibrium flag bit
Monomer carries out Balance route, and determines the balanced deadline according to the balanced remaining time of each battery cell.
As it can be seen that the present invention provides a kind of monomer Selection system to be equalized of power battery, moved by SOC computing units
The minimum monomer SOC value of power battery, and by screening unit by minimum monomer SOC value compared with the SOC value of other battery cells, when
When its difference is equal to greatly given threshold, battery cell to be equalized is filtered out.Solve the balanced monomer Selection of existing power battery
Easily there is inaccurate and mis-marked problem, the consistency of power battery can be improved, increase the service life and peace of power battery
Quan Xing.
The structure, feature and effect of the present invention, the above institute is described in detail according to diagrammatically shown embodiment above
Only presently preferred embodiments of the present invention is stated, but the present invention is not to limit practical range, every structure according to the present invention shown in drawing
Change made by thinking, or is revised as the equivalent embodiment of equivalent variations, when not going beyond the spirit of the description and the drawings,
It should all be within the scope of the present invention.
Claims (10)
1. a kind of monomer Selection method to be equalized of power battery, which is characterized in that including：
Under vehicle after electricity, judge whether the condition of the battery cell measurement open-circuit voltage OCV of power battery meets, if it is,
Battery management controller is waken up, and obtains the minimum monomer voltage of battery cell and minimum monomer temperature；
According to the minimum monomer voltage and the minimum monomer temperature, inquiry OCV corresponds to table and obtains minimum monomer SOC value；
Judge whether the minimum monomer SOC value meets balanced monomer Selection condition, if it is, obtaining every in power battery
The difference of the SOC value of a battery cell and the minimum monomer SOC value；
If the difference is greater than or equal to given threshold, corresponding battery cell, juxtaposition equilibrium flag bit are filtered out.
2. the monomer Selection method to be equalized of power battery according to claim 1, which is characterized in that further include：
According to the rated capacity of the battery cell filtered out and battery balanced electric current, the equilibrium being calculated needed for battery cell is surplus
The remaining time；
The balanced flag bit and the balanced remaining time are stored into the flash memory to the battery management controller
In；
If successfully stored, set stores Success Flag position.
3. the monomer Selection method to be equalized of power battery according to claim 2, which is characterized in that further include：
When vehicle powers on again, when obtaining the balanced flag bit and the balanced residue according to the storage Success Flag position
Between；
Balance route is carried out to the corresponding battery cell of the equilibrium flag bit, and according to the described balanced surplus of each battery cell
The remaining time determines the balanced deadline.
4. the monomer Selection method to be equalized of power battery according to claim 3, which is characterized in that the power battery
Battery cell measure the condition of open-circuit voltage OCV, including：
Power battery keeps whether the time of static condition is more than 1h；
Whether the largest battery monomer temperature of power battery and the difference of minimum battery cell temperature are less than or equal to set temperature
Threshold value；
Whether entire car controller has been in wake-up states.
5. the monomer Selection method to be equalized of power battery according to claim 4, which is characterized in that the inquiry OCV
Corresponding table obtains minimum monomer SOC value, including：
According to the correspondence of the state-of-charge SOC value of battery cell and the open-circuit voltage OCV of battery cell, the OCV is established
Corresponding table；
Table is corresponded to according to the OCV, inquiry minimum battery cell voltage in the minimum battery cell temperature is corresponding
The minimum monomer SOC value.
6. the monomer Selection method to be equalized of power battery according to claim 5, which is characterized in that the equilibrium monomer
Screening conditions include：
The minimum monomer SOC value is greater than or equal to 50%, and the minimum monomer SOC value is less than or equal to the sum of 1.5%
100%.
7. the monomer Selection method to be equalized of power battery according to claim 6, which is characterized in that the set temperature
Threshold value is 3 DEG C, and the given threshold is 1.5%.
8. a kind of monomer Selection system to be equalized of power battery, which is characterized in that including：
Acquiring unit is used for after electricity under vehicle, and the battery cell for meeting power battery measures the condition of open-circuit voltage OCV
When, obtain the minimum monomer voltage of battery cell and minimum monomer temperature；
Wakeup unit is called out for allowing vehicle-mounted T-BOX to wake up entire car controller after electricity under vehicle, and by the entire car controller
Awake battery management controller；
SOC computing units, for according to the minimum monomer voltage and the minimum monomer temperature, inquiry OCV to correspond to table acquisition
Minimum monomer SOC value；
Screening unit, for when the minimum monomer SOC value meets balanced monomer Selection condition, obtaining every in power battery
The difference of the SOC value of a battery cell and the minimum monomer SOC value, and sieved when the difference is greater than or equal to given threshold
It selects corresponding battery cell and sets balanced flag bit.
9. the monomer Selection system to be equalized of power battery according to claim 8, which is characterized in that further include：
Time for balance unit, for according to the rated capacity of battery cell and battery balanced electric current filtered out, electricity to be calculated
Balanced remaining time needed for the monomer of pond；
Storage unit, for storing the balanced flag bit and the balanced remaining time to the battery management controller
In flash memory, the set storage Success Flag position when successfully storing.
10. the monomer Selection system to be equalized of power battery according to claim 8, which is characterized in that further include：
Reading unit, for when vehicle powers on again, according to the storage Success Flag position obtain the balanced flag bit and
The equilibrium remaining time；
Balance route unit, for carrying out Balance route to the corresponding battery cell of the equilibrium flag bit, and according to each electricity
The balanced remaining time of pond monomer determines the balanced deadline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810576472.XA CN108710085A (en) | 2018-06-06 | 2018-06-06 | A kind of monomer Selection method and system to be equalized of power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810576472.XA CN108710085A (en) | 2018-06-06 | 2018-06-06 | A kind of monomer Selection method and system to be equalized of power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108710085A true CN108710085A (en) | 2018-10-26 |
Family
ID=63871338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810576472.XA Pending CN108710085A (en) | 2018-06-06 | 2018-06-06 | A kind of monomer Selection method and system to be equalized of power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108710085A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109866654A (en) * | 2019-02-28 | 2019-06-11 | 中国第一汽车股份有限公司 | A kind of power battery monomer electric quantity balancing method |
| CN113212207A (en) * | 2021-05-21 | 2021-08-06 | 度普(苏州)新能源科技有限公司 | Single battery cell balancing method and device for charging pile |
| CN116893357A (en) * | 2023-07-07 | 2023-10-17 | 中国人民解放军国防科技大学 | Key battery screening method, system and storage medium |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102496970A (en) * | 2011-11-11 | 2012-06-13 | 江苏大学 | SOC detection and energy balancing system for drive power of pure electric urban bus, and method of the same |
| CN102820687A (en) * | 2012-08-16 | 2012-12-12 | 重庆长安汽车股份有限公司 | Balance control method and device for power battery system |
| CN102868000A (en) * | 2012-09-05 | 2013-01-09 | 浙江众泰新能源汽车科技有限公司 | Power source balancing method of electric car |
| CN103475063A (en) * | 2013-09-25 | 2013-12-25 | 重庆长安汽车股份有限公司 | Method for dynamic balance control over lithium ion battery |
| KR20140056693A (en) * | 2012-10-31 | 2014-05-12 | 한국전기연구원 | Battery management system, and method of estimating battery's state of charge using the same |
| CN106042961A (en) * | 2016-06-15 | 2016-10-26 | 重庆长安汽车股份有限公司 | Power battery passive equalization control method and system |
| CN106887864A (en) * | 2015-12-15 | 2017-06-23 | 广州汽车集团股份有限公司 | A kind of electrokinetic cell balance control method and respective battery management system |
| CN107492917A (en) * | 2016-09-28 | 2017-12-19 | 宝沃汽车（中国）有限公司 | Electric quantity balancing method, battery management system and the power electric car of electrokinetic cell |
| CN107749500A (en) * | 2017-10-13 | 2018-03-02 | 合肥澎湃能源技术有限公司 | For battery balanced method and device |
-
2018
- 2018-06-06 CN CN201810576472.XA patent/CN108710085A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102496970A (en) * | 2011-11-11 | 2012-06-13 | 江苏大学 | SOC detection and energy balancing system for drive power of pure electric urban bus, and method of the same |
| CN102820687A (en) * | 2012-08-16 | 2012-12-12 | 重庆长安汽车股份有限公司 | Balance control method and device for power battery system |
| CN102868000A (en) * | 2012-09-05 | 2013-01-09 | 浙江众泰新能源汽车科技有限公司 | Power source balancing method of electric car |
| KR20140056693A (en) * | 2012-10-31 | 2014-05-12 | 한국전기연구원 | Battery management system, and method of estimating battery's state of charge using the same |
| CN103475063A (en) * | 2013-09-25 | 2013-12-25 | 重庆长安汽车股份有限公司 | Method for dynamic balance control over lithium ion battery |
| CN106887864A (en) * | 2015-12-15 | 2017-06-23 | 广州汽车集团股份有限公司 | A kind of electrokinetic cell balance control method and respective battery management system |
| CN106042961A (en) * | 2016-06-15 | 2016-10-26 | 重庆长安汽车股份有限公司 | Power battery passive equalization control method and system |
| CN107492917A (en) * | 2016-09-28 | 2017-12-19 | 宝沃汽车（中国）有限公司 | Electric quantity balancing method, battery management system and the power electric car of electrokinetic cell |
| CN107749500A (en) * | 2017-10-13 | 2018-03-02 | 合肥澎湃能源技术有限公司 | For battery balanced method and device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109866654A (en) * | 2019-02-28 | 2019-06-11 | 中国第一汽车股份有限公司 | A kind of power battery monomer electric quantity balancing method |
| CN109866654B (en) * | 2019-02-28 | 2022-04-01 | 中国第一汽车股份有限公司 | Method for balancing electric quantity of single power battery |
| CN113212207A (en) * | 2021-05-21 | 2021-08-06 | 度普(苏州)新能源科技有限公司 | Single battery cell balancing method and device for charging pile |
| CN113212207B (en) * | 2021-05-21 | 2022-06-28 | 度普(苏州)新能源科技有限公司 | Single cell balancing method and device for charging pile |
| CN116893357A (en) * | 2023-07-07 | 2023-10-17 | 中国人民解放军国防科技大学 | Key battery screening method, system and storage medium |
| CN116893357B (en) * | 2023-07-07 | 2024-03-19 | 中国人民解放军国防科技大学 | Key battery screening method, system and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107991623B (en) | Battery ampere-hour integral SOC estimation method considering temperature and aging degree | |
| JP5511951B2 (en) | Charge state estimation device | |
| CN105015360B (en) | Automobile power cell SOF monitoring method | |
| CN106814329A (en) | A kind of battery SOC On-line Estimation method based on double Kalman filtering algorithms | |
| CN105866700B (en) | A method for rapid screening of lithium-ion batteries | |
| CN109617169A (en) | A Lithium-ion Battery Balance Method Based on Fuzzy Control | |
| CN109061521B (en) | Storage battery pack charge state calculation method and system | |
| CN110794314A (en) | Method for improving lithium ion battery capacity test accuracy | |
| CN103529397B (en) | A kind of method estimating battery electric quantity and battery electric quantity management system | |
| CN111239611A (en) | A calculation method for calibrating PACKSOC based on single battery capacity | |
| CN112924866B (en) | Method and device for detecting capacity retention rate, vehicle and storage medium | |
| CN110673039A (en) | Lithium iron phosphate battery SOC charging online correction method based on big data | |
| CN108711648A (en) | Li-ion batteries piles monomer capacity and health status on-line measurement system and method | |
| CN103675698A (en) | Power battery charge state estimating device and method | |
| CN104242393A (en) | Battery management system based on dynamic SOC estimation system | |
| CN108802625A (en) | A kind of SOC adaptive correction methods of secondary use battery | |
| CN109216803A (en) | A kind of UMDs battery management system | |
| CN108710085A (en) | A kind of monomer Selection method and system to be equalized of power battery | |
| CN108169687A (en) | A kind of accumulator SOC estimation method based on cloud platform | |
| CN107861074B (en) | Lithium battery SOC estimation method | |
| CN105356533A (en) | Battery pack active equalization method and battery pack active equalization device | |
| CN114552039A (en) | Control method for battery constant-charge self-maintenance and constant-charge self-maintenance battery | |
| CN114204101A (en) | Battery pack matching method for electric automobile | |
| CN108680867A (en) | A kind of all-vanadium flow battery SOC on-line calibration methods based on cubage correction | |
| CN104201787A (en) | Mobile energy-storage power plant battery management system based on Calman filtering algorithm |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 No. 669 Shixin Road, Taohua Industrial Park, Hefei City, Anhui Province Applicant before: Anhui Jianghuai Automobile Group Limited by Share Ltd |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181026 |