CN102361100B - Method for controlling balance of power lithium ion battery - Google Patents
Method for controlling balance of power lithium ion battery Download PDFInfo
- Publication number
- CN102361100B CN102361100B CN2011103183458A CN201110318345A CN102361100B CN 102361100 B CN102361100 B CN 102361100B CN 2011103183458 A CN2011103183458 A CN 2011103183458A CN 201110318345 A CN201110318345 A CN 201110318345A CN 102361100 B CN102361100 B CN 102361100B
- Authority
- CN
- China
- Prior art keywords
- soc
- balanced
- balance
- battery
- battery cell
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 32
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 17
- 239000000178 monomer Substances 0.000 claims abstract description 38
- 239000011449 brick Substances 0.000 claims description 30
- 230000008569 process Effects 0.000 claims description 13
- 238000007599 discharging Methods 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Secondary Cells (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a method for controlling the balance of a power lithium ion battery, belonging to the technical field of battery balance control. The method comprises the following steps of: determining battery monomers needing to be balanced in the charging or discharging state on line, calculating balance time needed by the battery monomers needing to be balanced for reaching a target balance capacity, and calculating a start time point when the battery monomers are balanced; and triggering a balance executing mechanism to execute balancing at the initial time point. In the invention, an online active balance way is adopted, and energy is supplemented when the energy level is in low and is released when the energy level is high, so that the energy of each battery monomer tends to be consistent, the discharging capability and cruising distance of a battery pack are increased, the problem caused by battery consistence is solved, and the balance efficiency is increased.
Description
Technical field
The present invention relates to battery balanced control technology field, particularly a kind of control method of balance of power lithium ion battery is mainly used in the active equalization system of the electrokinetic cells such as pure electric automobile, hybrid vehicle, plug-in hybrid-power automobile.
Background technology
Energy scarcity and environmental protection cry are more and more higher, and new-energy automobile has become one of topmost developing direction of Green Vehicle.The electrokinetic cell security and stability also greatly improves, and in new-energy automobile field nowadays very important status is arranged.But the problem of restriction Development of Electric Vehicles still is energy storage technology and the application technology of electrokinetic cell.And lithium ion battery is one of electrokinetic cell of the more employing of current electric automobile, its advantage: open circuit voltage is high, and (monomer battery voltage is up to 3.6～3.8V), and specific energy is large, have extended cycle life, nuisanceless, memory-less effect, self discharge are little.Yet for lithium ion battery comparatively distinct issues are its consistency, be that realistic meaning is arranged very much so study a kind of control method of balance of power lithium ion battery.
Lithium ion battery adopts series system to connect more, because the aspects such as temperature of each monolithic storage battery each monolithic storage battery in manufacturing, initial capacity, voltage, internal resistance and batteries are all incomplete same, because the existence of these differences has caused the difference of monomer performance, battery in use for some time, it is large that the monomer otherness can become, this will affect battery performance and life-span, therefore needs regularly battery to be carried out equilibrium.
In realizing process of the present invention, the inventor finds that there is following shortcoming at least in prior art:
The battery balanced means of current driving force fall behind, and mostly adopt passive balanced means, namely just carry out battery balanced control after battery breaks down, the effect that can't play the protection battery, prolongs battery, so that its balanced efficient is low, and DeGrain.
Summary of the invention
The object of the invention provides a kind of control method of balance of power lithium ion battery, be used for remedying prior art and get defective, improve new-energy automobile lithium ion battery consistency, height according to battery cell volume index SOC discharges and makeup energy, improves discharge capability and the course continuation mileage of power brick.
The embodiment of the invention provides a kind of control method of balance of power lithium ion battery.Described technical scheme is as follows: described method comprises:
Determining online in the process of moving needs balanced battery cell under the charge or discharge state, calculate the described battery cell of equilibrium that needs and reach the required time for balance t of the balanced capacity of target
i, and draw the start time point of battery cell equilibrium; Triggering balanced actuator at described start time point carries out balanced.
Described battery cell that need under the charge or discharge state to determine online in the process of moving equilibrium, concrete bag
Draw together:
Measure in advance the volume index SOC of each battery cell
iAnd the balanced volume index SOC of whole power brick
A
Draw the volume index SOC of each battery cell
iWith balanced volume index SOC
ABetween capacity tolerance value △ SOC
i
According to capacity tolerance value △ SOC
iWith balanced volume index SOC
ANeed to determine balanced battery cell.
According to capacity tolerance value △ SOC
iWith balanced volume index SOC
ADetermining needs balanced battery cell, specifically comprises:
If △ is SOC
i〉=SOC
A* K determines that then this battery cell is to need balanced monomer,
Wherein but K is scalar quantity, and the K value is 0＜K≤0.15.
Described execution equilibrium comprises:
Charge balancing, the volume index SOC of the battery cell of required equilibrium
iBe lower than balanced volume index SOC
A, and its capacity tolerance value △ SOC
i〉=SOC
A* K is to the battery cell charging and make its volume index SOC
iBe tending towards described balanced volume index SOC
A
Equalization discharge, the volume index SOC of the battery cell of required equilibrium
iBe higher than balanced volume index SOC
A, and its capacity tolerance value △ SOC
i〉=SOC
A* K, volume index SOC
iHigher battery cell releases energy, and makes its volume index SOC
iBe tending towards described balanced volume index SOC
A
Described time for balance t
iDetermine comprise:
Determine that the ampere-hour of the charge or discharge of required balancing battery monomer counts AH
i
Capacity tolerance value △ SOC by the balancing battery monomer
iAnd the ampere-hour of equalizing charge or discharge is counted AH
iDraw the time for balance t of required balancing battery monomer
i
The determining of the start time point of battery cell equilibrium comprises:
Time for balance t according to all balancing battery monomers in the power brick
iDraw the balanced zero-time t of power brick;
In conjunction with the balanced zero-time t of power brick and the time for balance t of each balancing battery monomer
i, draw the start time point T of each battery cell equilibrium
I0
The time for balance t of described power brick chooses all battery cell time for balance t
iA time for balance that battery cell is required of middle maximum.
Described charge balancing adopts the DC-DC module to charge, and described equalization discharge adopts resistance to discharge.
The beneficial effect of the technical scheme that the embodiment of the invention provides is:
Battery balanced control method of the present invention has adopted online balanced way initiatively, has solved simultaneously charge balancing and equalization discharge, and efficient is high.
Method of the present invention can be carried out active balancing (comprising charge balancing and equalization discharge) to battery pack online, the real real-time online of realizing is balanced, this function can solve the consistency problem that the current battery bag exists, can effectively prevent degradation of cell performance, and can repair the battery of hydraulic performance decline, thereby improve the automobile course continuation mileage, and prolong the useful life of battery.By online battery balanced, greatly improve the battery consistency problem, improve the capacity of whole power brick, remedy some defectives that current battery exists.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the control method flow chart of balance of power lithium ion battery provided by the invention;
Fig. 2 is control system frame diagram provided by the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
Specifically as shown in Figure 1.
(1) need under the charge or discharge state to determine online balanced battery cell
Specifically comprise:
Measure in advance the volume index SOC of each battery cell
iAnd the balanced volume index SOC of whole power brick
A
Draw the volume index SOC of each battery cell
iWith balanced volume index SOC
ABetween capacity tolerance value △ SOC
i, wherein, △ SOC
i=SOC
i-SOC
A
According to capacity tolerance value △ SOC
iWith balanced volume index SOC
ANeed to determine balanced battery cell.
Determine the battery cell of needs equilibrium according to capacity tolerance value △ SOCi and balanced volume index SOCA, specifically comprise:
If △ is SOCi 〉=SOCA*K, determine that then this battery cell is to need balanced monomer,
Wherein but K is scalar quantity, and the K value is 0-0.15, can obtain according to the working control situation.
For charge balancing, the volume index SOC of the battery cell of required equilibrium
iBe lower than balanced volume index SOC
A, and its capacity tolerance value △ SOC
i〉=SOC
A* K is to the battery cell charging and make its volume index SOC
iBe tending towards described balanced volume index SOC
A
Equalization discharge, the volume index SOC of the battery cell of required equilibrium
iBe higher than balanced volume index SOC
A, and its capacity tolerance value △ SOC
i〉=SOC
A* K, volume index SOC
iHigher battery cell releases energy, and makes its volume index SOC
iBe tending towards described balanced volume index SOC
A
The charge balancing selected point can be judged for reflecting the conforming state-of-charge of battery low pressure stage monomer (State of Charge) SOC point according to the battery self character, such as now choosing bag SOC
BOTPoint, prediction each monomer SOC this moment.
The equalization discharge selected point can be arranged on power brick and will be full of in the electricity time period, confirms the higher battery of energy number according to the frequency number of times of the higher appearance of battery cell SOC.
(2) calculate the battery cell that needs equilibrium and reach the required time for balance of the balanced capacity of target, and draw the start time point of battery cell equilibrium
At first will calculate needs balanced battery cell to reach the required time for balance of the balanced capacity of target.
Determine that the ampere-hour of the charge or discharge of required balancing battery monomer counts AH
i
Capacity tolerance value △ SOC by the balancing battery monomer
iAnd the ampere-hour of equalizing charge or discharge is counted AH
iDraw the time for balance t of required balancing battery monomer
i
Specifically calculated by the energy predicting module and need balanced capacity tolerance value △ SOC
i, according to size of current prediction time for balance t
i
SOC
end=SOC
iend
△SOC
iend=SOC
i-SOC
iend
△BAH
i=△SOC
iend*AH
i
Measuring in advance thus needs the balanced time.SOC
EndBe the balanced capacity SOC of target of power brick, SOC
IendBe the balanced capacity SOC of target of i batteries monomer, △ BAH
iIt is the capacity difference distance of the balanced capacity SOC of i batteries monomer and target.
Time for balance t according to the battery cell of all needs equilibriums
i, the maximum time for balance of choosing wherein carries out balanced start time point as triggering power brick, and the while is according to the time for balance t of each battery cell
iObtain the start time point T that each needs balanced battery cell
I0
The SOC that can dope power brick according to the charging and discharging currents of power brick can determine according to the battery actual conditions to the SOC(that is full of electricity 100% and discharge alarming value point place), set out the balanced capability value of target, the battery cell of the needs equilibrium of so above-mentioned selected taking-up, under the battery charging and discharging condition and balanced control action be issued to the SOC level of whole bag, to guarantee that the monomer consistency is optimized in being full of electricity and discharge process.
Particularly, according to capacity tolerance value △ SOC, euqalizing current I
bSize, and the charging and discharging currents I of power brick are determined balanced start time point T
I0
I is the charging and discharging currents value of power brick, is charged as just to discharge for negative I
bBe the equalizer equalizes current value, the reference battery bag sense of current is established I
bBe on the occasion of, I during charge balancing
bIt is negative value during equalization discharge.t
iBe that i batteries monomer will reach the balanced needed time of capacity SOC of target under proportionality action.
The charging and discharging currents of power brick generally is to be defaulted as constant in the power brick charging process, according to the battery charge parameter as can be known.The discharge process electric current is changing value, and this control method is to predict discharging current according to city operating mode NEDC standard.
Discharge and recharge the time according to current value and initial SOC prediction
Zero-time can be approximately so: T
I0=t-t
i
SOC
StartBe the initial SOC value of power brick, T
I0It is the initial time for balance that the i joint needs the balancing battery monomer.
(3) triggering balanced actuator at described start time point carries out balanced
Balanced enforcement: equalizer will carry out equilibrium to battery accurately according to the transmission information of BMS.The BBS major function comprises, protocol layer: with the BMS real-time communication, receive, send the CAN Message Processing; Discharging and recharging parameter processes: the processing such as electric current, voltage, temperature; Judge overcurrent, overvoltage, undervoltage warning; Logic control and state are judged: obtain the charge and discharge balancing order, module status is judged; Module diagnosis: the diagnostic functions such as equalization channel.
Fig. 2 has provided the framework of whole system and the corresponding relation between each control module.BBS can be divided into three major functions according to each functions of modules: the aspects such as CAN communication, equalizer logic control, safety management.BMS battery cell equalization demand is the judgment part initiatively, need to the battery parameter of battery management system, the modules such as SOC prediction are common to realize battery balanced demand judgement.Equalizer is balanced according to the information processing that battery management system sends, and makes necessary malfunction elimination, guarantees that equalizer can normally effectively carry out equilibrium to power brick.
Balanced prediction module selects needs balanced battery number, and provide the execution start time point according to energy deviation, balanced actuator equalizer is dealt with according to message, the mode that adopts equalization discharge and charge balancing to combine, concrete charge and discharge balancing is that the DC-DC module is charged, and resistance discharges.
Charge balancing: balanced to the online real time charging of power brick in the process of moving.By the monomer that selects number and with the difference of target SOC under the power brick discharge condition, for energy monomer on the low side, open actuator's equalizer and carry out energy supply, so that low-yield monomer SOC is tending towards whole bag SOC.The consistency of battery be can guarantee to improve in the process of moving by online equilibrium, performance and protection battery improved.
Equalization discharge: in to the power brick charging process to the power brick equalization discharge.By the monomer that selects number and with the difference of target SOC under the power brick charged state, for energy monomer on the low side, open actuator's equalizer and carry out energy release, so that high-energy monomer SOC is tending towards the target SOC of whole bag, each monomer of battery is full of as far as possible.Can guarantee to improve in the process of moving the consistency of battery by online equilibrium, improve serviceability.
Above-mentioned employing energy makeup energy on the low side, energy is higher to release energy, and finally each monomer energy reaches unanimity, and improves discharge capability and the course continuation mileage of power brick, can really solve the problem that battery consistency brings.
All or part of step in the embodiment of the invention can utilize software to realize, corresponding software program can be stored in the storage medium that can read, such as CD or hard disk etc.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. the control method of a balance of power lithium ion battery is characterized in that, described method comprises:
Determining online in the process of moving needs balanced battery cell under the charge or discharge state, calculate the described battery cell of equilibrium that needs and reach the required time for balance t of the balanced capacity of target
i, and draw the start time point of battery cell equilibrium; Triggering balanced actuator at described start time point carries out balanced;
Described battery cell that need under the charge or discharge state to determine online in the process of moving equilibrium comprises:
Measure in advance the volume index SOC of each battery cell
iAnd the balanced volume index SOC of whole power brick
ADraw the volume index SOC of each battery cell
iWith balanced volume index SOC
ABetween capacity tolerance value △ SOC
i
According to capacity tolerance value △ SOC
iWith balanced volume index SOC
ANeed to determine balanced battery cell; If △ is SOC
i〉=SOC
A* K determine that then this battery cell is to need balanced monomer, but wherein K is scalar quantity, and the K value is 0＜K≤0.15;
The determining of the start time point of battery cell equilibrium comprises:
Time for balance t according to all balancing battery monomers in the power brick
iDraw the balanced zero-time t of power brick;
In conjunction with the balanced zero-time t of power brick and the time for balance t of each balancing battery monomer
i, draw the start time point T of each battery cell equilibrium
I0
2. the control method of balance of power lithium ion battery according to claim 1 is characterized in that,
Described execution equilibrium comprises:
Charge balancing, the volume index SOC of the battery cell of required equilibrium
iBe lower than balanced volume index SOC
A, and its capacity tolerance value △ SOC
i〉=SOC
A* K is to the battery cell charging and make its volume index SOC
iBe tending towards described balanced volume index SOC
A
Equalization discharge, the volume index SOC of the battery cell of required equilibrium
iBe higher than balanced volume index SOC
A, and its capacity tolerance value △ SOC
i〉=SOC
A* K, volume index SOC
iHigher battery cell releases energy, and makes its volume index SOC
iBe tending towards described balanced volume index SOC
A
3. the control method of balance of power lithium ion battery according to claim 1 is characterized in that,
Described time for balance t
iDetermine comprise:
Determine that the ampere-hour of the charge or discharge of required balancing battery monomer counts AH
i
Capacity tolerance value △ SOC by the balancing battery monomer
iAnd the ampere-hour of equalizing charge or discharge is counted AH
iDraw the time for balance t of required balancing battery monomer
i
4. the control method of balance of power lithium ion battery according to claim 1 is characterized in that,
The time for balance t of described power brick chooses all battery cell time for balance t
iA time for balance that battery cell is required of middle maximum.
5. the control method of balance of power lithium ion battery according to claim 2 is characterized in that,
Described charge balancing adopts the DC-DC module to charge, and described equalization discharge adopts resistance to discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103183458A CN102361100B (en) | 2011-10-19 | 2011-10-19 | Method for controlling balance of power lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103183458A CN102361100B (en) | 2011-10-19 | 2011-10-19 | Method for controlling balance of power lithium ion battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102361100A CN102361100A (en) | 2012-02-22 |
| CN102361100B true CN102361100B (en) | 2013-03-06 |
Family
ID=45586372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103183458A Active CN102361100B (en) | 2011-10-19 | 2011-10-19 | Method for controlling balance of power lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102361100B (en) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645637B (en) * | 2012-04-25 | 2015-02-25 | 中航锂电（洛阳）有限公司 | Method for estimating SOC (state of charge) of equalized batteries |
| CN103683359B (en) * | 2012-09-21 | 2016-03-30 | 比亚迪股份有限公司 | The battery equalization method of battery pack and battery management system |
| CN103316852B (en) * | 2013-05-24 | 2015-05-06 | 上海中聚佳华电池科技有限公司 | Battery selecting method |
| CN104426176B (en) * | 2013-08-28 | 2017-03-15 | 国家电网公司 | A kind of car load level battery management system |
| CN104426178B (en) * | 2013-08-28 | 2017-02-22 | 国家电网公司 | Battery pack with equalization control function |
| CN104426180B (en) * | 2013-08-28 | 2016-10-05 | 国家电网公司 | A kind of Balance route chip and balance control method |
| CN104426177B (en) * | 2013-08-28 | 2016-08-31 | 国家电网公司 | A kind of balancing control circuit |
| CN104426179B (en) * | 2013-08-28 | 2017-02-22 | 国家电网公司 | Box-level battery management system |
| CN104882914B (en) * | 2014-02-28 | 2017-03-15 | 重庆邮电大学 | Multi-battery cell balancing method |
| CN104578286B (en) * | 2014-12-30 | 2017-12-22 | 深圳市科陆电子科技股份有限公司 | The active equalization method of lithium battery group |
| CN104600387B (en) * | 2015-02-05 | 2016-11-23 | 青海时代新能源科技有限公司 | The active equalization method of ferric phosphate lithium cell group and system |
| CN104935045B (en) * | 2015-06-24 | 2017-04-19 | 深圳先进储能材料国家工程研究中心有限公司 | Battery pack equalization method for energy storage system adopting nickel-series storage batteries |
| CN105449295B (en) | 2015-11-17 | 2018-02-02 | 北京新能源汽车股份有限公司 | Power battery balance control method, device and circuit |
| CN105515138B (en) * | 2016-02-23 | 2018-03-13 | 华霆（合肥）动力技术有限公司 | A kind of battery equalization method, battery balanced controller and battery pack |
| CN106340920B (en) * | 2016-09-19 | 2019-01-25 | 东软集团股份有限公司 | Control method, device, battery system and the vehicle of the passive equilibrium of battery pack |
| JP6485439B2 (en) * | 2016-12-19 | 2019-03-20 | トヨタ自動車株式会社 | Power storage system |
| CN107492688B (en) * | 2017-07-05 | 2019-09-20 | 宝沃汽车（中国）有限公司 | A kind of battery maintenance method, apparatus and vehicle |
| CN109017429B (en) * | 2018-10-09 | 2021-04-20 | 天津易众腾动力技术有限公司 | All-working-condition passive equalization algorithm for power battery pack quantization |
| CN109649217B (en) * | 2019-01-16 | 2021-01-26 | 中国船舶重工集团公司第七一九研究所 | Control method of electric vehicle supplementary power type lithium battery pack balancing device |
| CN111463504B (en) * | 2019-01-18 | 2021-07-30 | 上海什弋维新能源科技有限公司 | Equalization algorithm for maintaining battery module |
| CN110231572A (en) * | 2019-06-14 | 2019-09-13 | 安徽锐能科技有限公司 | A kind of SOC estimation device based on active equalization of battery |
| CN110266084B (en) * | 2019-07-16 | 2020-11-20 | 上海空间电源研究所 | Battery charging and discharging system based on ampere-hour control method |
| CN114567027A (en) * | 2020-11-27 | 2022-05-31 | 厦门雅迅网络股份有限公司 | Power battery pack equalization method based on terrain prediction |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1402375A (en) * | 2002-04-04 | 2003-03-12 | 北京航空航天大学 | Method and device for automatic equilization of charge-and-dischage based on cell dynamic electricity different compensation |
| CN101794921A (en) * | 2009-02-04 | 2010-08-04 | 三星Sdi株式会社 | Balancing of battery cell method, balancing of battery cell system and battery pack |
| CN101917038A (en) * | 2010-08-05 | 2010-12-15 | 惠州市亿能电子有限公司 | Charge balancing control method of power battery pack |
| CN102064586A (en) * | 2011-01-14 | 2011-05-18 | 奇瑞汽车股份有限公司 | Control system and method for novel battery equalizer |
-
2011
- 2011-10-19 CN CN2011103183458A patent/CN102361100B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1402375A (en) * | 2002-04-04 | 2003-03-12 | 北京航空航天大学 | Method and device for automatic equilization of charge-and-dischage based on cell dynamic electricity different compensation |
| CN101794921A (en) * | 2009-02-04 | 2010-08-04 | 三星Sdi株式会社 | Balancing of battery cell method, balancing of battery cell system and battery pack |
| CN101917038A (en) * | 2010-08-05 | 2010-12-15 | 惠州市亿能电子有限公司 | Charge balancing control method of power battery pack |
| CN102064586A (en) * | 2011-01-14 | 2011-05-18 | 奇瑞汽车股份有限公司 | Control system and method for novel battery equalizer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102361100A (en) | 2012-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102361100B (en) | Method for controlling balance of power lithium ion battery | |
| CN110380144B (en) | Mixed coordination control method and system for retired lithium iron phosphate and ternary lithium battery | |
| CN102868000B (en) | Power source balancing method of electric car | |
| CN104052087B (en) | Electric vehicle intelligent lithium ion battery management system and balance control method thereof | |
| US9358899B2 (en) | Method for revitalizing and increasing lithium ion battery capacity | |
| JP4001708B2 (en) | Replacing the secondary battery | |
| CN102445665B (en) | Battery pack capacity learning algorithm | |
| CN110780210B (en) | Battery pack internal short circuit detection method and device and electric automobile | |
| CN101867204B (en) | Battery energy management device of electric vehicle and method | |
| WO2022134629A1 (en) | Battery pack master-slave dynamic parallel operation method, powered device, and storage medium | |
| CN105711434A (en) | Power battery management system of electric car | |
| CN110154829B (en) | Balance control method for battery core of power battery pack and power battery system | |
| CN216389527U (en) | Battery heating system, battery pack and electric device | |
| CN110780219B (en) | Battery pack internal short circuit detection method and device and electric automobile | |
| CN112384405B (en) | Method of controlling battery system in vehicle | |
| CN107618397A (en) | Battery management system | |
| CN116250110A (en) | Battery charging method, controller, battery management system, battery and power utilization device | |
| CN103580070A (en) | Electric vehicle charging and discharging simulation system and method | |
| CN102343831B (en) | System and method for rebalancing a vehicle battery | |
| CN110780225B (en) | Battery pack internal short circuit detection method and device and electric automobile | |
| EP4231412A1 (en) | Power battery charging method and battery management system | |
| CN103296324B (en) | Vehicle power battery pack charging method | |
| Scavongelli et al. | Battery management system simulation using SystemC | |
| CN108832205A (en) | Matching method of power lithium iron phosphate batteries | |
| US20240217386A1 (en) | Method of hybrid battery electrical energy output distribution control for electric vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |