CN108054445A - Deterioration of battery parameters revision system and deterioration of battery parameter correction method - Google Patents
Deterioration of battery parameters revision system and deterioration of battery parameter correction method Download PDFInfo
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- CN108054445A CN108054445A CN201711242829.2A CN201711242829A CN108054445A CN 108054445 A CN108054445 A CN 108054445A CN 201711242829 A CN201711242829 A CN 201711242829A CN 108054445 A CN108054445 A CN 108054445A
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- Prior art keywords
- battery
- parameters revision
- usage time
- unit
- parameter
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
-
- 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
-
- 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
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- 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
- H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
-
- 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
Abstract
Deterioration of battery parameters revision system and deterioration of battery parameter correction method, including：Battery pack, the battery pack is made of several single batteries, battery management module, and the battery management module includes the battery management unit to connect one to one with the single battery and parameters revision module.The usage time, the temperature under corresponding usage time and the electric current under corresponding usage time that this invention combines single battery obtain battery parameter that is more accurate and can more reflecting under current monolithic deterioration of battery state and carry out data update; battery parameter after updated is more applicable for the single battery deteriorated; be conducive to judgement protection of the battery management system to having deteriorated single battery and condition managing to single battery, improve the safety and reliability of battery management system.
Description
Technical field
The present invention relates to field of battery management, join more particularly to a kind of deterioration of battery parameters revision system and deterioration of battery
Number modification method.
Background technology
In the operational process of energy-storage system, with the increase of battery cluster usage time, the single battery in energy-storage system
Gradually appear deterioration；And every battery parameter is to be directed to the single battery not deteriorated in battery management system in battery cluster,
It is disposably provided with when dispatching from the factory.When then single battery deteriorates in battery cluster, the items in battery management system
Battery parameter is not suitable for the single battery in battery cluster gradually.With continuing to increase for single battery degradation, battery cluster
When using former protection battery parameter, state battery parameter, on the one hand can further increase the trend of single battery deterioration, separately
On the one hand management and control reduced capability of the battery management system to single battery is caused.
The content of the invention
The purpose of the present invention is overcoming shortcoming of the prior art, provide a kind of deterioration of battery parameters revision system and
Deterioration of battery parameter correction method.
The purpose of the present invention is what is be achieved through the following technical solutions：
Deterioration of battery parameters revision system, including：Battery pack, the battery pack is made of several single batteries, cell tube
Module is managed, the battery management module includes the battery management unit to connect one to one with the single battery and parameter is repaiied
Positive module；
Each battery management unit is connected with the parameters revision module communication；
The parameters revision module includes parameters revision control unit, parameters revision communication unit, parameters revision storage list
Member and parameters revision clock unit, the first communication terminal of the parameters revision control unit pass through the parameters revision communication unit
It being connected with each battery management unit communication, the second communication terminal is connected with the communication terminal of the parameters revision storage element,
Clock signal input terminal is connected with the clock signal output terminal of the parameters revision clock unit, power input and external power supply
Connection.
In one of the embodiments, the parameters revision module further includes parameters revision crystal oscillator unit, and the parameter is repaiied
The crystal oscillation signal input terminal of positive control unit is connected with the crystal oscillation signal output terminal of the parameters revision crystal oscillator unit.
In one of the embodiments, the parameters revision module further includes parameters revision voltage regulation unit, and the parameter is repaiied
The power input of positive control unit is connected by the parameters revision voltage regulation unit with the external power supply.
In one of the embodiments, the battery pack is composed in series by single battery.
Deterioration of battery parameter correction method, comprises the following steps：
Step S01, measuring single battery usage time and the variation relation graph of battery parameter；
Step S02, usage time and the preset function relation of battery parameter are drawn according to variation relation graph, it will be default
Functional relation is stored to parameters revision storage unit；
Step S03, parameters revision control unit obtains the usage time of single battery and is sent out to parameters revision storage unit
Send usage time, parameters revision storage unit obtains battery parameter under corresponding usage time simultaneously according to corresponding preset function relation
It is sent to parameters revision control unit；
Step S04, battery parameter is sent to corresponding battery management unit and carries out data more by parameters revision control unit
Newly.
In one of the embodiments, the step S01 is specially：
Experiment obtains single battery usage time and correspondence real time temperature and real-time current in usage time, measures single
The variation relation graph of body service time of battery, real time temperature and real-time current and battery parameter.
In one of the embodiments, the step S03 is specially：
Parameters revision control unit obtains the usage time, the temperature under corresponding usage time and corresponding use of single battery
Electric current under time sends usage time, temperature and electric current to parameters revision storage unit, and parameters revision storage unit is according to right
Preset function relation is answered to obtain the battery parameter under corresponding usage time, temperature and electric current and is sent to parameters revision control list
Member.
This technical solution following advantageous effect compared with the prior art：
The deterioration of battery parameters revision system of the present invention and deterioration of battery parameter correction method are controlled single using parameters revision
The usage time, the temperature under corresponding usage time and correspondence that member obtains single battery by parameters revision communication unit in real time make
With the electric current under the time, parameters revision storage element calls corresponding preset function relation to obtain corresponding battery parameter, finally
Battery parameter is sent to corresponding battery management unit and carries out data update.With the continuous increasing of the usage time of single battery
Add, a degree of deterioration can occur for single battery, when usage time, the correspondence of this technical solution combination single battery use
Between under temperature and corresponding usage time under electric current obtain more accurate and can more reflect under current monolithic deterioration of battery state
Battery parameter and carry out data update, it is updated after battery parameter be more applicable for the single battery deteriorated, be conducive to
Battery management system is protected by the judgement for having deteriorated single battery and the condition managing to single battery, improves battery management system
The safety and reliability of system.
Description of the drawings
Fig. 1 is the system framework schematic diagram of the deterioration of battery parameters revision system in the present embodiment；
Fig. 2 is the circuit theory schematic diagram of the deterioration of battery parameters revision system in the present embodiment；
Fig. 3 is the flow diagram of the deterioration of battery parameter correction method in the present embodiment.
Specific embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In attached drawing
Give the better embodiment of the present invention.But the present invention can realize in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose of providing these embodiments is that make to understand more the disclosure
Add thorough and comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
For illustrative purposes only, it is unique embodiment to be not offered as " right side " and similar statement.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The normally understood meaning of technical staff is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more
The arbitrary and all combination of relevant Listed Items.
It is the system framework schematic diagram of deterioration of battery parameters revision system as shown in Figure 1, please combines together with reference to Fig. 2, bag
It includes：Battery pack 100, the battery pack 100 is made of several single batteries, battery management module 200, the battery management module
200 include the battery management unit 210 to connect one to one with the single battery and parameters revision module 300；
Each battery management unit 210 is connected with the parameters revision module 300 communication；
The parameters revision module 300 includes parameters revision control unit 310, parameters revision communication unit 320, parameter and repaiies
Positive storage element 330 and parameters revision clock unit 340, the first communication terminal of the parameters revision control unit 310 pass through institute
It states parameters revision communication unit 320 to connect with each communication of battery management unit 210, the second communication terminal is repaiied with the parameter
The communication terminal connection of positive storage element 330, the clock signal of clock signal input terminal and the parameters revision clock unit 340 are defeated
Outlet connects, and power input is connected with external power supply.
Specifically, the parameters revision module 300 further includes parameters revision crystal oscillator unit 350, the parameters revision control
The crystal oscillation signal input terminal of unit 310 is connected with the crystal oscillation signal output terminal of the parameters revision crystal oscillator unit 350.
It should be noted that preferably, parameters revision module 300 further includes parameters revision crystal oscillator unit
350.Parameters revision control unit 310 can be configured to periodic wakeup pattern by parameters revision crystal oscillator unit 350, according to it is default when
Between be spaced periodic wakeup parameters revision control unit 310, prefixed time interval can combine actual operating condition and flexibly set.
The setting of parameters revision crystal oscillator unit 350 can reduce the power consumption of parameters revision module 300.
Specifically, the parameters revision module 300 further includes parameters revision voltage regulation unit 360, the parameters revision control
The power input of unit 310 is connected by the parameters revision voltage regulation unit 360 with the external power supply.
It should be noted that preferably, parameters revision module 300 further includes parameters revision voltage regulation unit
360, parameters revision voltage regulation unit 360 can cause the voltage of input to parameters revision control unit 310 more to stablize, and prevent defeated
Enter to the unexpected saltus step of voltage of parameters revision control unit 310 and damage parameters revision control unit 310, improve the safety of system
Property and stability.
Further, the battery pack 100 is composed in series by single battery.
The flow diagram of deterioration of battery parameter correction method is illustrated in figure 3, is comprised the following steps：
Step S01, measuring single battery usage time and the variation relation graph of battery parameter；
Step S02, usage time and the preset function relation of battery parameter are drawn according to variation relation graph, it will be default
Functional relation is stored to parameters revision storage unit 330；
Step S03, parameters revision control unit 310 obtains the usage time of single battery and to parameters revision storage unit
330 send usage time, and parameters revision storage unit 330 obtains the electricity under corresponding usage time according to corresponding preset function relation
Pond parameter is simultaneously sent to parameters revision control unit 310；
Step S04, battery parameter is sent to corresponding battery management unit 210 and carried out by parameters revision control unit 310
Data update.
Further, the step S01 is specially：
Experiment obtains single battery usage time and correspondence real time temperature and real-time current in usage time, measures single
The variation relation graph of body service time of battery, real time temperature and real-time current and battery parameter.
Further, the step S03 is specially：
Parameters revision control unit 310 obtains the temperature and correspondence under the usage time of single battery, corresponding usage time
Electric current under usage time sends usage time, temperature and electric current to parameters revision storage unit 330, and parameters revision storage is single
Member 330 obtains the battery parameter under corresponding usage time, temperature and electric current according to corresponding preset function relation and is sent to parameter
Correction and Control unit 310.
Concrete operating principle is as follows：
When parameters revision module 300 is by periodic wakeup, parameters revision control unit 310 passes through parameters revision communication unit
320 obtain the usage time t of each single battery in battery pack 100, for example, parameters revision control unit 310 passes through parameters revision
Communication unit 320 obtains the usage time t of No. 2 single battery, and it is single that the usage time t of acquisition is sent to parameters revision storage
Member 330 searches the battery parameter under corresponding usage time t according to preset function relation, then sends obtained battery parameter
To parameters revision control unit 310, parameters revision control unit 310 is retransmited after receiving battery parameter to No. 2 monomer electricity
The battery management unit 210 that pond is correspondingly connected with carries out data update, and updated battery parameter can be more applicable for No. 2 monomer
Battery.
It should be noted that preset function relation is the preset function relation obtained under single battery experiment test, specifically
For for example, single battery remaining capacity SOC and single battery usage time t relations, go out monomer electricity by substantial amounts of experimental fit
Pond remaining capacity SOC and the change curve of single battery usage time t, so as to obtain preset function relation, i.e. single battery
The preset function relation SOC=f (t) of remaining capacity SOC and single battery usage time t, then by single battery remaining capacity SOC
It is stored with the preset function relation SOC=f (t) of single battery usage time t into parameters revision storage element 330.In monomer
It in the actual application of battery, is continuously increased with the usage time t of single battery, the meeting hair that single battery does not meet with an accident
Raw a degree of single battery degradation phenomena, this technical solution combine the actual operating mode of actual single battery (i.e.
With reference to the actual operating mode of the usage time t of single battery) relevant updates are carried out to battery parameter, be conducive to battery management system
System is protected by the judgement for having deteriorated single battery and the condition managing to single battery, improves the security of battery management system
And reliability.
It should also be noted that, the battery parameter information of more accurate single battery actual operating mode in order to obtain.
Preferably, the step S01 is specially：Experiment obtains pair in single battery usage time and usage time
Real time temperature and real-time current are answered, measures the variation of single battery usage time, real time temperature and real-time current and battery parameter
Graph of relation；The step S03 is specially：Parameters revision control unit 310 obtains the usage time of single battery, correspondence makes
With the electric current at the temperature under the time and corresponding usage time, to parameters revision storage unit 330 send usage time, temperature and
Electric current, parameters revision storage unit 330 obtain the electricity under corresponding usage time, temperature and electric current according to corresponding preset function relation
Pond parameter is simultaneously sent to parameters revision control unit 310.When obtaining preset function relation, for example, single battery remaining capacity
SOC and the electric current I relations under the temperature T under single battery usage time t, corresponding time t and corresponding time t, by substantial amounts of
Experimental fit goes out single battery remaining capacity SOC and the temperature T under single battery usage time t, corresponding time t and corresponding time
The change curve of electric current I under t, so as to obtain preset function relation, i.e. single battery remaining capacity SOC makes with single battery
With the preset function relation SOC=f (t, T, I) of the electric current I under time t, the temperature T under corresponding time t and corresponding time t, then
By the preset function relation SOC=f (t, T, I) of single battery remaining capacity SOC and single battery usage time t storages to parameter
It corrects in storage element 330.Under conditions of single battery usage time t is combined, further combined with single battery usage time t
Under temperature T and electric current I, obtained using usage time t, temperature T and electric current I according to preset function relation SOC=f (t, T, I)
Battery parameter, three impact factors are become by an original impact factor, prevent the battery that usage time t is applied alone to obtain join
Number is inaccurate, and temperature T and electric current I under time t is fully used in combination, can more reflect the actual operating mode of single battery, obtain
The battery parameter arrived is more accurate.
Embodiment described above only expresses the several embodiments of the present invention, and description is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that come for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (7)
1. deterioration of battery parameters revision system, which is characterized in that including：Battery pack (100), the battery pack (100) is by several
Single battery composition, battery management module (200), the battery management module (200) include a pair of with the single battery one
The battery management unit (210) and parameters revision module (300) that should be connected；
Each battery management unit (210) connects with the parameters revision module (300) communication；
The parameters revision module (300) includes parameters revision control unit (310), parameters revision communication unit (320), parameter
Correct storage element (330) and parameters revision clock unit (340), the first communication of the parameters revision control unit (310)
End is connected by the parameters revision communication unit (320) and each battery management unit (210) communication, the second communication terminal
It is connected with the communication terminal of the parameters revision storage element (330), clock signal input terminal and the parameters revision clock unit
(340) clock signal output terminal connection, power input are connected with external power supply.
2. battery parameter update the system according to claim 1, which is characterized in that the parameters revision module (300) is also
Including parameters revision crystal oscillator unit (350), crystal oscillation signal input terminal and the parameter of the parameters revision control unit (310)
Correct the crystal oscillation signal output terminal connection of crystal oscillator unit (350).
3. battery parameter update the system according to claim 1, which is characterized in that the parameters revision module (300) is also
Including parameters revision voltage regulation unit (360), the power input of the parameters revision control unit (310) is repaiied by the parameter
Positive voltage regulation unit (360) is connected with the external power supply.
4. battery parameter update the system according to claim 1, which is characterized in that the battery pack (100) is by monomer electricity
Pond is composed in series.
5. deterioration of battery parameter correction method, which is characterized in that comprise the following steps：
Step S01, measuring single battery usage time and the variation relation graph of battery parameter；
Step S02, usage time and the preset function relation of battery parameter are drawn according to variation relation graph, by preset function
Relation is stored to parameters revision storage unit (330)；
Step S03, parameters revision control unit (310) obtains the usage time of single battery and to parameters revision storage unit
(330) usage time is sent, parameters revision storage unit (330) is obtained according to corresponding preset function relation under corresponding usage time
Battery parameter and be sent to parameters revision control unit (310)；
Step S04, battery parameter is sent to corresponding battery management unit (210) and carried out by parameters revision control unit (310)
Data update.
6. deterioration of battery parameter correction method according to claim 5, which is characterized in that the step S01 is specially：
Experiment obtains single battery usage time and correspondence real time temperature and real-time current in usage time, measures monomer electricity
The variation relation graph of pond usage time, real time temperature and real-time current and battery parameter.
7. deterioration of battery parameter correction method according to claim 6, which is characterized in that the step S03 is specially：
The usage time, the temperature under corresponding usage time and correspondence that parameters revision control unit (310) obtains single battery make
With the electric current under the time, usage time, temperature and electric current are sent to parameters revision storage unit (330), parameters revision storage is single
First (330) obtain the battery parameter under corresponding usage time, temperature and electric current according to corresponding preset function relation and are sent to ginseng
Number Correction and Control unit (310).
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| CN201711242829.2A CN108054445A (en) | 2017-11-30 | 2017-11-30 | Deterioration of battery parameters revision system and deterioration of battery parameter correction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114368312A (en) * | 2022-01-11 | 2022-04-19 | 青岛特来电新能源科技有限公司 | Vehicle information processing method and device, electronic equipment and medium |
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| CN102129039A (en) * | 2005-09-16 | 2011-07-20 | 古河电气工业株式会社 | Secondary cell degradation judgment method, secondary cell degradation judgment device, and power supply system |
| CN105717457A (en) * | 2016-02-03 | 2016-06-29 | 惠州市蓝微新源技术有限公司 | Method for utilizing big database analysis to carry out battery pack health state estimation |
-
2017
- 2017-11-30 CN CN201711242829.2A patent/CN108054445A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102129039A (en) * | 2005-09-16 | 2011-07-20 | 古河电气工业株式会社 | Secondary cell degradation judgment method, secondary cell degradation judgment device, and power supply system |
| CN105717457A (en) * | 2016-02-03 | 2016-06-29 | 惠州市蓝微新源技术有限公司 | Method for utilizing big database analysis to carry out battery pack health state estimation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114368312A (en) * | 2022-01-11 | 2022-04-19 | 青岛特来电新能源科技有限公司 | Vehicle information processing method and device, electronic equipment and medium |
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Application publication date: 20180518 |