CN106374556A - Battery charging method and apparatus - Google Patents
Battery charging method and apparatus Download PDFInfo
- Publication number
- CN106374556A CN106374556A CN201610804234.0A CN201610804234A CN106374556A CN 106374556 A CN106374556 A CN 106374556A CN 201610804234 A CN201610804234 A CN 201610804234A CN 106374556 A CN106374556 A CN 106374556A
- Authority
- CN
- China
- Prior art keywords
- battery
- electricity
- charger
- rated capacity
- electric quantity
- Prior art date
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- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000005611 electricity Effects 0.000 claims description 93
- 238000001514 detection method Methods 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Classifications
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- H02J7/0026—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
- H02J7/0032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits disconnection of loads if battery is not under charge, e.g. in vehicle if engine is not running
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a battery charging method and apparatus. The battery charging method comprises the steps of making statistics on battery charging times firstly, obtaining a battery attenuation curve and attenuation rate according to the battery charging times, and detecting output electric quantity of a charger; then calculating battery demanded electric quantity according to a relation among the battery demanded electric quantity, battery rated capacity, the attenuation rate and an SOC value, wherein the battery demanded electric quantity is increased along with increasing of the battery rated capacity, and decreased along with the increasing of the attenuation rate and the SOC value; and finally comparing the battery demanded electric quantity, the battery rated capacity and the output electric quantity of the charger, and if the output electric quantity of the charger is less than the battery demanded electric quantity, continuing to charge until the output electric quantity of the charger is equal to the battery demanded electric quantity, and stopping the charging process. By adoption of the battery charging method, generation of a battery overcharge phenomenon is lowered, the service life of the battery is effectively ensured, and generation of accidents is prevented.
Description
Technical field
The invention belongs to battery charging field, particularly to a kind of method for charging batteries and device.
Background technology
With the development of auto industry, car owning amount gets more and more, and adopts gasoline or the automobile of diesel engine to discharge
Tail gas environmental pollution huge, take various policies to encourage consumers to use new-energy automobile for this national each relevant departments,
New-energy automobile is increasingly accepted by people, and the research and development of current new-energy automobile are in accumulation stage, especially new forms of energy vapour
Car battery technology is not also perfect, during using new-energy automobile, new energy car battery is charged, new energy car battery charges
During usually can generate heat, hot.
In prior art, when battery being charged using charger, generally on the basis of the rated capacity of battery, or with electricity
On the basis of the maximum voltage in pond, it is continuously battery before reaching benchmark and charges；This charging modes easily cause over-charging of battery
Phenomenon, makes battery life reduce or damages, or even because over-charging of battery causes heating excessively to cause short circuit to catch fire, causes more
Fault on a large scale.Such as Patent No. cn203261084u, entitled " equalizing charger " documents are exactly to utilize accumulator
When actual electricity reaches battery rated capacity, automatically cut off charging circuit.Therefore, easily cause the generation overcharging phenomenon.
Content of the invention
It is an object of the invention to provide a kind of method for charging batteries, for solving the problems, such as over-charging of battery.
For achieving the above object, the technical scheme is that
A kind of method for charging batteries, the method comprises the following steps:
S1. count cell charging times, according to cell charging times, obtain cell decay rate in conjunction with attenuation curve, detection
Charger exports electricity；
S2. battery requirements electricity is calculated according to the relation of battery requirements electricity and battery rated capacity, attenuation rate, soc value,
Wherein battery requirements electricity increases with the increase of battery rated capacity, reduces with the increase of attenuation rate and soc value；
S3. battery requirements electricity, charger output electricity are contrasted, when charger output electricity is less than battery requirements
Electricity, proceeds to charge, and until charger output electricity is equal to battery requirements electricity, stops charging.
Calculate battery requirements electricity using formula a=b* (1-e) * (1-f), wherein a represents that battery requirements electricity, b represent
Battery rated capacity, e represent soc value, and f represents attenuation rate.
According to described cell charging times, obtain cell decay rate in conjunction with attenuation curve rule.
Present invention also offers a kind of battery charger, this device includes:
Statistic unit and detector unit: for counting cell charging times, obtain cell decay according to cell charging times
Curve, detection charger output electricity；
Computing unit: for electricity is calculated according to the relation of battery requirements electricity and battery rated capacity, attenuation rate, soc value
Pond demand electricity, wherein battery requirements electricity increase with the increase of battery rated capacity, with the increasing of attenuation rate and soc value
Reduce greatly；
Judging unit: for being contrasted battery requirements electricity, battery rated capacity, charger output electricity, when filling
Motor output electricity is less than battery requirements electricity, proceeds to charge, until charger output electricity is equal to battery requirements electricity,
Charging terminates.
This device is also included for calculating battery requirements electricity using formula a=b* (1-e) * (1-f), and wherein a represents electricity
Pond demand electricity, b represent that battery rated capacity, e represent soc value, and f represents the unit of attenuation rate.
This device is also included for according to described charging times, obtaining the list of cell decay rate in conjunction with attenuation curve rule
Unit.
The invention has the beneficial effects as follows:
The charging method of the present invention sets a demand capacity, judges that battery is using the battery requirements electricity calculating
No needs stop charging.And demand electricity can rule of thumb, experiment or the rule of correlation obtain, for the electricity of different model
Pond, the demand electricity that it calculates has certain difference, and therefore the method can be used to prevent over-charging of battery the longevity it is ensured that battery
Life.
Obtain charging process being monitored while cell decay rule using cell charging times, improve safety
Grade and the accuracy of charge control.
Demand electricity can accurately be calculated using cell decay rule, battery rated capacity, soc value, to new battery with
And employing the battery of a period of time, calculated demand electricity is different, thus when this charging method can avoid to using
Between different battery adopt same control mode, thus improve the adaptability to battery, protective effect is served to battery.
Meanwhile, the present invention achieves charger using the mode that battery requirements electricity and charger export electricity contrast
Active control, and reduce the generation overcharging phenomenon extremely leading to due to bms.
Brief description
Fig. 1 is method for charging batteries flow chart.
Specific embodiment
A kind of method for charging batteries of the present invention, comprises the following steps:
S1. count cell charging times, obtain attenuation rate, detection charger output electricity according to cell charging times；
S2. battery requirements electricity is calculated according to the relation of battery requirements electricity and battery rated capacity, attenuation rate, soc value,
Wherein battery requirements electricity increases with the increase of battery rated capacity, reduces with the increase of attenuation rate and soc value；
S3. battery requirements electricity, charger output electricity are contrasted, when charger output electricity is less than battery requirements
Electricity, proceeds to charge, and until charger output electricity is equal to battery requirements electricity, stops charging.
This method for charging batteries effectively can prevent over-charging of battery it is ensured that the life-span of battery, the generation of Accident prevention.Tool
Body, as shown in figure 1, the specifically comprising the following steps that of charging method
1. new energy vehicle is connected with charger, is charged with the charging flow meeting related GB.
2. vehicle bms statistics cell charging times information is simultaneously sent to charger charging times information by message, leads to
Cross statistics cell charging times, charging process can be monitored, improve the accuracy of safe class and charge control.
3. charger according to receive message combine cell decay curve, obtain cell decay rate, using formula a=
B* (1-e) * (1-f) calculating battery requirements electricity, and detect the output electricity c of charger, charger output can use by electricity
Current voltage detects, reconvert becomes corresponding electricity or passes through electric energy meter direct measurement, and wherein battery requirements electricity is with battery
The increase of rated capacity and increase, be worth increasing with attenuation rate and soc and reduce, a represents that battery requirements electricity, b represent electricity
Pond total capacity, e represent soc value, and f represents attenuation rate.By the master directly contrasting battery requirements electricity and charger output
Dynamic control mode, reduces due to leading to when bms breaks down overcharge the generation of phenomenon.The calculating of battery requirements electricity can also
It is replaced with other computing formula, such as using some other parameter related to charging or increase in this formula
Other parameter is calculating.
4. a, b, c value is contrasted, necessarily had b>=a, if c<a<b, proceed to charge；If c=a, reach charging
Stop condition, stops charging, and by the active control mode directly contrasting battery requirements electricity and charger output, reduces
Due to leading to when bms breaks down overcharge the generation of phenomenon.
Additionally, cell charging times message presses related Standard sending.This method decision logic and message are in related state
Add on the basis of mark, the Rule of judgment that GB has also can be realized in this flow process, and priority is identical.
In above-mentioned steps, NM message timeout logic judgment mode is consistent with Standard, but considers technology up till now
Disunity, if configuration message timeout logic judgement can cause necessarily to affect to make it cannot fill on the vehicle not adding this Preservation tactics
Electricity.
Present invention also offers a kind of battery charger, comprising: statistic unit and detector unit, judging unit, wherein
Statistic unit and detector unit are used for counting cell charging times, obtain cell decay curve and decay according to cell charging times
Rate, detection charger output electricity；Computing unit is used for calculating battery requirements electricity according to formula a=b* (1-e) * (1-f), its
Middle a represents that battery requirements electricity, b represent that battery total capacity, e represent soc value, and f represents attenuation rate；Judging unit is used for battery
Demand electricity, battery rated capacity, charger output electricity are contrasted, when charger output electricity is less than battery requirements electricity
Amount, proceeds to charge, and until charger output electricity is equal to battery requirements electricity, charging terminates.
Above-mentioned charging device, actually a kind of software architecture, wherein each unit is the step with above-mentioned charging method
The corresponding process of 1-4 or program.Therefore, no longer this charging device is described in detail.
Above-mentioned battery charger as a kind of program, in charger run, be prevented from battery overcharge it is ensured that electricity
The life-span in pond.Charging method using cell charging times can be monitored to charging process, improves safe class and charging
The accuracy controlling；Achieve the active control of charger using the mode that battery requirements electricity and charger are exported electricity contrast
System, and reduce the generation overcharging phenomenon extremely leading to due to bms.
Claims (6)
1. a kind of method for charging batteries is it is characterised in that comprise the following steps:
S1. count cell charging times, obtain cell decay rate, detection charger output electricity according to cell charging times；
S2. battery requirements electricity is calculated according to the relation of battery requirements electricity and battery rated capacity, attenuation rate, soc value, wherein
Battery requirements electricity increases with the increase of battery rated capacity, reduces with the increase of attenuation rate and soc value；
S3. battery requirements electricity, charger output electricity are contrasted, when charger output electricity is less than battery requirements electricity
Amount, proceeds to charge, and until charger output electricity is equal to battery requirements electricity, stops charging.
2. a kind of method for charging batteries according to claim 1 is it is characterised in that utilize formula a=b* (1-e) * (1-f)
Calculate battery requirements electricity, wherein a represents that battery requirements electricity, b represent that battery rated capacity, e represent soc value, and f represents decay
Rate.
3. a kind of method for charging batteries according to claim 2 is it is characterised in that according to described cell charging times, tie
Close attenuation curve rule and obtain cell decay rate.
4. a kind of battery charger is it is characterised in that this device includes:
Statistic unit and detector unit: for counting cell charging times, obtain cell decay curve according to cell charging times
And attenuation rate, detection charger output electricity；
Computing unit: for battery need are calculated according to the relation of battery requirements electricity and battery rated capacity, attenuation rate, soc value
Seek electricity, wherein battery requirements electricity increases with the increase of battery rated capacity, with attenuation rate and soc value increase and
Reduce；
Judging unit: for being contrasted battery requirements electricity, battery rated capacity, charger output electricity, work as charger
Output electricity is less than battery requirements electricity, proceeds to charge, and until charger output electricity is equal to battery requirements electricity, charges
Terminate.
5. a kind of battery charger according to claim 4 is it is characterised in that this device is also included for utilizing formula
A=b* (1-e) * (1-f) calculates battery requirements electricity, and wherein a represents that battery requirements electricity, b represent battery rated capacity, e table
Show soc value, f represents the unit of attenuation rate.
6. a kind of battery charger according to claim 5 is it is characterised in that this device is also included for according to described
Cell charging times, obtain the unit of cell decay rate in conjunction with attenuation curve rule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610804234.0A CN106374556A (en) | 2016-09-06 | 2016-09-06 | Battery charging method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610804234.0A CN106374556A (en) | 2016-09-06 | 2016-09-06 | Battery charging method and apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN106374556A true CN106374556A (en) | 2017-02-01 |
Family
ID=57900170
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| CN201610804234.0A Pending CN106374556A (en) | 2016-09-06 | 2016-09-06 | Battery charging method and apparatus |
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| CN (1) | CN106374556A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109017352A (en) * | 2018-06-21 | 2018-12-18 | 重庆国翰能源发展有限公司 | A kind of charging pile energy storing structure power supply monitoring method |
| CN110401244A (en) * | 2019-07-31 | 2019-11-01 | 深圳市云充吧科技有限公司 | A kind of charge control method of mobile power source charging terminal |
| CN110649340A (en) * | 2018-06-26 | 2020-01-03 | 比亚迪股份有限公司 | Discharging method of power battery, battery management system and vehicle |
| CN113497466A (en) * | 2020-03-20 | 2021-10-12 | 名硕电脑(苏州)有限公司 | Battery charging device and method for setting charging voltage |
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| CN104833918A (en) * | 2014-05-22 | 2015-08-12 | 北汽福田汽车股份有限公司 | Method for detection of service life of power battery of vehicle, and system |
| US20150367744A1 (en) * | 2013-02-14 | 2015-12-24 | Renault S.A.S. | Managing the charging of a battery |
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2016
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| JP2007234257A (en) * | 2006-02-27 | 2007-09-13 | Sony Corp | Battery pack, electronic equipment, and battery remaining capacity detecting method |
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| US20150367744A1 (en) * | 2013-02-14 | 2015-12-24 | Renault S.A.S. | Managing the charging of a battery |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109017352A (en) * | 2018-06-21 | 2018-12-18 | 重庆国翰能源发展有限公司 | A kind of charging pile energy storing structure power supply monitoring method |
| CN110649340A (en) * | 2018-06-26 | 2020-01-03 | 比亚迪股份有限公司 | Discharging method of power battery, battery management system and vehicle |
| CN110649340B (en) * | 2018-06-26 | 2021-09-21 | 比亚迪股份有限公司 | Discharging method of power battery, battery management system and vehicle |
| CN110401244A (en) * | 2019-07-31 | 2019-11-01 | 深圳市云充吧科技有限公司 | A kind of charge control method of mobile power source charging terminal |
| CN113497466A (en) * | 2020-03-20 | 2021-10-12 | 名硕电脑(苏州)有限公司 | Battery charging device and method for setting charging voltage |
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Application publication date: 20170201 |
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