CN107895820A - Adjustment system and method for adjustment - Google Patents
Adjustment system and method for adjustment Download PDFInfo
- Publication number
- CN107895820A CN107895820A CN201711056876.8A CN201711056876A CN107895820A CN 107895820 A CN107895820 A CN 107895820A CN 201711056876 A CN201711056876 A CN 201711056876A CN 107895820 A CN107895820 A CN 107895820A
- Authority
- CN
- China
- Prior art keywords
- electrokinetic cell
- current
- adjustment
- soc
- module
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- 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
-
- 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
-
- 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
The present invention provides a kind of adjustment system, the specified charging current for motivation of adjustment battery；The adjustment system includes statistical module, table look-up module, computing module and adjusting module；The statistical module is used for the charge and discharge cycles number for counting the electrokinetic cell；The table look-up module, which is used to table look-up according to the charge and discharge cycles number, draws corresponding experiment SOC；The computing module is used for the current SOH that the electrokinetic cell is calculated according to the experiment SOC；The adjusting module is used to be adjusted the current nominal charging current of the electrokinetic cell according to the current SOH and preset algorithm of the electrokinetic cell.The situation that adjustment system provided by the invention avoids the battery capacity rapid decay caused by excessive charging current after the electrokinetic cell aging occurs, so as to extend the service life of electrokinetic cell to greatest extent.The present invention also provides a kind of method of adjustment.
Description
【Technical field】
The present invention relates to power battery charging technical field, more particularly to a kind of adjustment for being used to adjust specified charging current
System and method of adjustment.
【Background technology】
At present, with the high speed development of New-energy electric vehicle industry, the security feature of electric automobile is proposed more next
Higher requirement, wherein, specified charging current is exactly one of important parameter of its security feature.
With battery service life increase and discharge and recharge number increase, battery can gradual aging, for example, electricity can be caused
The generation for the problems such as pole active material comes off and lumpd.After cell degradation, if set when being dispatched from the factory during charging also according to battery
Specified charging current charged for it, it will cause electrode active material to accelerate to come off, so that battery capacity quickly declines
Subtract, ultimately result in and scrap.
In consideration of it, real be necessary to provide a kind of adjustment system and method for adjustment to overcome drawbacks described above.
【The content of the invention】
It is an object of the invention to provide a kind of adjustment system and method for adjustment, the adjustment system and method for adjustment can be right
Current nominal charging current is adjusted, so as to extend the service life of electrokinetic cell.
To achieve these goals, the present invention provides a kind of adjustment system, the specified charging electricity for motivation of adjustment battery
Stream；The adjustment system includes statistical module, table look-up module, computing module and adjusting module；The statistical module is used to count
The charge and discharge cycles number of the electrokinetic cell；The table look-up module is used to table look-up according to the charge and discharge cycles number to draw pair
The experiment SOC answered；The computing module is used for the current SOH that the electrokinetic cell is calculated according to the experiment SOC；The tune
Mould preparation block is used for current SOH and preset algorithm according to the electrokinetic cell to the current nominal charging current of the electrokinetic cell
It is adjusted.
The present invention also provides a kind of method of adjustment, the specified charging current for motivation of adjustment battery；The method of adjustment
Comprise the following steps：
Count the charge and discharge cycles number of the electrokinetic cell
Table look-up experiment SOC corresponding to drawing according to the charge and discharge cycles number；
The current SOH of the electrokinetic cell is calculated according to the experiment SOC；
Current SOH and preset algorithm according to the electrokinetic cell enter to the current nominal charging current of the electrokinetic cell
Row adjustment.
Adjustment system and method for adjustment provided by the present invention, by being carried out to the current nominal charging current of electrokinetic cell
Adjustment, avoid the situation hair of the battery capacity rapid decay caused by excessive charging current after the electrokinetic cell aging
It is raw, so as to extend the service life of electrokinetic cell to greatest extent.
【Brief description of the drawings】
Fig. 1 is the functional block diagram of the electric automobile comprising the adjustment system provided in the embodiment of the present invention.
Fig. 2 is the flow chart of the method for adjustment provided in the embodiment of the present invention.
【Embodiment】
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, ordinary skill personage are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
When an element was considered as with another element " being connected ", it can be directly to another element or
It may be simultaneously present centering elements.Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to this hair
The implication that the skilled worker of bright technical field is generally understood that is identical.Term used in the description of the invention herein
It is intended merely to describe the purpose of specific embodiment, it is not intended that in the limitation present invention.Term as used herein " and/or " bag
Include the arbitrary and all combination of the Listed Items of one or more correlations.
Referring to Fig. 1, it is the functional block diagram of the electric automobile 99 comprising adjustment system 100 provided by the invention.Institute
Stating in electric automobile 99 includes electrokinetic cell 91, memory 92, processor 93 and adjustment system 100.The electrokinetic cell 91 is
The traveling of the electric automobile 99 provides power resources.The adjustment system 100 is filled for adjusting the specified of the electrokinetic cell
Electric current.Specifically, the adjustment system 100 includes statistical module 10, table look-up module 20, computing module 30 and adjusting module
40.It is appreciated that above-mentioned each functional module can be stored in memory 92 in the form of software, and performed by processor 93,
Can be the hardware with specific function, for example, burning has the chip of particular software application.In addition, the adjustment system 100 is not
It can be applied only in electric automobile 99, apply also for other electric tools or electrical equipment for including electrokinetic cell 91
In.
The statistical module 10 is used for the charge and discharge cycles number for counting the electrokinetic cell 91.In the present embodiment,
The process of the charge and discharge cycles of electrokinetic cell 91 once includes a charging process of the electrokinetic cell 91 and once discharged
Process.
The table look-up module 20, which is used to table look-up according to the charge and discharge cycles number, draws corresponding experiment SOC (State
Of Charge, state-of-charge).In the present embodiment, the experiment SOC is the electrokinetic cell 91 in corresponding circulation time
Corresponding SOC when reaching charging rated voltage during number charging.Specifically, there is the electrokinetic cell 91 in the memory 92
Cycle-index and the experiment one-to-one related tables of SOC.For example, when the electrokinetic cell 91 dispatches from the factory, when charging reaches charging
During rated voltage, the SOC of the electrokinetic cell 91 is 100%, and when 91 charge and discharge cycles of electrokinetic cell 760 times, when
When being charged for the electrokinetic cell 91 and reaching rated voltage, the SOC of the electrokinetic cell 91 is 86%.In present embodiment
In, cycle-index and the experiment one-to-one related tables of SOC of the electrokinetic cell 91 are obtained by many experiments, therefore,
In order to obtain the more accurately cycle-index of electrokinetic cell 91 and the experiment one-to-one related tables of SOC, it is necessary to pass through reality
The various operating modes of simulation are tested to draw experiment SOC corresponding to the cycle-index under different operating modes, then same under different operating modes is followed
Corresponding experiment SOC averages described in ring number, and then forms final cycle-index and experiment SOC correspondence table.
The computing module 30 is used for the current SOH (State that the electrokinetic cell 91 is calculated according to the experiment SOC
Of Health, health status).Wherein it is possible to the electrokinetic cell 91 is calculated in corresponding cycle-index by integrating meter on time
Corresponding to reaching during experiment SOC, charged capacity, and charging capacity divided by the corresponding experiment SOC is current to draw
Maximum capacity, then by current maximum capacity divided by the rated capacity (nominal capacity) when dispatching from the factory, you can draw the electrokinetic cell
91 SOH.
The adjusting module 40 is used for current SOH and preset algorithm according to the electrokinetic cell 91 to the electrokinetic cell
91 current nominal charging current is adjusted.In the present embodiment, the preset algorithm is：Current nominal charging current=
The current SOH of electrokinetic cell 91 described in specified charging current * when the electrokinetic cell 91 dispatches from the factory.The adjusting module 40 is by institute
State current nominal charging current and substitute previously positioned specified charging current.For example, the SOH when electrokinetic cell 91 dispatches from the factory is
100%, specified charging current is 100A, when the electrokinetic cell current SOH be 85% when, the electrokinetic cell 91 it is specified
Charging current is 85A, and now, if according to specified charging current when dispatching from the factory, the charging current of the electrokinetic cell 91 is set
For 90A, electrokinetic cell 91 will be caused to damage.It is appreciated that only adjusting specified charging current in the present embodiment, it is power electric
The maximum charging current in pond 91 is not actual charging current, when electrokinetic cell 91 charges, as long as charging current is not more than
Specified charging current.
As shown in Fig. 2 it is the flow chart of method of adjustment disclosed in the embodiment of the present invention.It should be noted that the present invention
Method be not limited to the order of following step, and in other embodiment, method of the invention can only include as described below
A portion of step, or part steps therein can be deleted.
Step S01, the statistical module 10 are used for the charge and discharge cycles number for counting the electrokinetic cell 91.In this implementation
In mode, the process of the charge and discharge cycles of electrokinetic cell 91 once includes a charging process and one for the electrokinetic cell 91
Secondary discharge process.
Step S02, the table look-up module 20 are used to table look-up according to the charge and discharge cycles number to draw corresponding experiment
SOC.In the present embodiment, the experiment SOC is that the electrokinetic cell 91 reaches corresponding during charging rated voltage in charging
SOC.
Step S03, the computing module 30 are used to calculate the current of the electrokinetic cell 91 according to the experiment SOC
SOH。
Step S04, the adjusting module 40 are used for current SOH and preset algorithm according to the electrokinetic cell 91 to described
The current nominal charging current of electrokinetic cell 91 is adjusted.In the present embodiment, the preset algorithm is：Current nominal fills
The current SOH of electrokinetic cell 91 described in specified charging current * when electric current=electrokinetic cell 91 dispatches from the factory.
Adjustment system 100 and method of adjustment provided by the present invention, by entering to the specified charging current of electrokinetic cell 91
Row adjustment, avoid the feelings of the battery capacity rapid decay caused by excessive charging current after the aging of electrokinetic cell 91
Condition occurs, so as to extend the service life of electrokinetic cell 91 to greatest extent.
The present invention is not restricted to described in specification and embodiment, therefore for the personnel of familiar field
Additional advantage and modification is easily achieved, therefore in the essence of the universal limited without departing substantially from claim and equivalency range
In the case of refreshing and scope, the present invention is not limited to specific details, representational equipment and shown here as the diagram with description
Example.
Claims (8)
1. a kind of adjustment system, the specified charging current for motivation of adjustment battery；It is characterized in that：The adjustment system includes
Statistical module, table look-up module, computing module and adjusting module；The statistical module is used for the discharge and recharge for counting the electrokinetic cell
Cycle-index；The table look-up module, which is used to table look-up according to the charge and discharge cycles number, draws corresponding experiment SOC；The calculating
Module is used for the current SOH that the electrokinetic cell is calculated according to the experiment SOC；The adjusting module is used for according to described dynamic
The current SOH and preset algorithm of power battery are adjusted to the current nominal charging current of the electrokinetic cell.
2. adjustment system as claimed in claim 1, it is characterised in that：The process bag of the electrokinetic cell charge and discharge cycles once
Include a charging process and a discharge process for the electrokinetic cell.
3. adjustment system as claimed in claim 1, it is characterised in that：The experiment SOC is the electrokinetic cell corresponding
Corresponding SOC cycle-index reaches charging rated voltage when charging when.
4. adjustment system as claimed in claim 1, it is characterised in that：The preset algorithm is：Current nominal charging current=
The current SOH of electrokinetic cell described in specified charging current * when the electrokinetic cell dispatches from the factory.
5. a kind of method of adjustment, the specified charging current for motivation of adjustment battery；It is characterized in that：The method of adjustment includes
Following steps：
Count the charge and discharge cycles number of the electrokinetic cell
Table look-up experiment SOC corresponding to drawing according to the charge and discharge cycles number；
The current SOH of the electrokinetic cell is calculated according to the experiment SOC；
Current SOH and preset algorithm according to the electrokinetic cell adjust to the current nominal charging current of the electrokinetic cell
It is whole.
6. method of adjustment as claimed in claim 5, it is characterised in that：The process bag of the electrokinetic cell charge and discharge cycles once
Include a charging process and a discharge process for the electrokinetic cell.
7. method of adjustment as claimed in claim 5, it is characterised in that：The experiment SOC is the electrokinetic cell in charging
Corresponding SOC when reaching charging rated voltage.
8. method of adjustment as claimed in claim 5, it is characterised in that：The preset algorithm is：Current nominal charging current=
The current SOH of electrokinetic cell described in specified charging current * when the electrokinetic cell dispatches from the factory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711056876.8A CN107895820A (en) | 2017-10-27 | 2017-10-27 | Adjustment system and method for adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711056876.8A CN107895820A (en) | 2017-10-27 | 2017-10-27 | Adjustment system and method for adjustment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107895820A true CN107895820A (en) | 2018-04-10 |
Family
ID=61803990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711056876.8A Pending CN107895820A (en) | 2017-10-27 | 2017-10-27 | Adjustment system and method for adjustment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107895820A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109941147A (en) * | 2019-03-18 | 2019-06-28 | 广州小鹏汽车科技有限公司 | It is a kind of for extending the method and electronic equipment of power battery service life |
| CN112542624A (en) * | 2019-09-23 | 2021-03-23 | 北京小米移动软件有限公司 | Charging method, charging device and storage medium |
| CN113147478A (en) * | 2021-04-26 | 2021-07-23 | 东方醒狮储能电池有限公司 | Electric automobile power supply management system based on radio frequency induction |
| CN114089205A (en) * | 2022-01-21 | 2022-02-25 | 三一汽车制造有限公司 | Charging limiting current detection method, device and system and storage medium |
-
2017
- 2017-10-27 CN CN201711056876.8A patent/CN107895820A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109941147A (en) * | 2019-03-18 | 2019-06-28 | 广州小鹏汽车科技有限公司 | It is a kind of for extending the method and electronic equipment of power battery service life |
| CN112542624A (en) * | 2019-09-23 | 2021-03-23 | 北京小米移动软件有限公司 | Charging method, charging device and storage medium |
| CN112542624B (en) * | 2019-09-23 | 2022-02-11 | 北京小米移动软件有限公司 | Charging method, charging device and storage medium |
| CN113147478A (en) * | 2021-04-26 | 2021-07-23 | 东方醒狮储能电池有限公司 | Electric automobile power supply management system based on radio frequency induction |
| CN113147478B (en) * | 2021-04-26 | 2024-04-16 | 东方醒狮储能电池有限公司 | Electric automobile power supply management system based on radio frequency induction |
| CN114089205A (en) * | 2022-01-21 | 2022-02-25 | 三一汽车制造有限公司 | Charging limiting current detection method, device and system and storage medium |
| CN114089205B (en) * | 2022-01-21 | 2022-05-03 | 三一汽车制造有限公司 | Charging limiting current detection method, device and system and storage medium |
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