CN106856341A - A kind of charging electric vehicle control method of low equipment loss - Google Patents
A kind of charging electric vehicle control method of low equipment loss Download PDFInfo
- Publication number
- CN106856341A CN106856341A CN201611220302.5A CN201611220302A CN106856341A CN 106856341 A CN106856341 A CN 106856341A CN 201611220302 A CN201611220302 A CN 201611220302A CN 106856341 A CN106856341 A CN 106856341A
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- Prior art keywords
- open
- power module
- array
- numbering
- charging
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Classifications
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- 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
- H02J7/007—Regulation of charging or discharging current or voltage
-
- 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
- B60L53/20—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 characterised by converters located in the vehicle
-
- 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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of charging electric vehicle control method of low equipment loss：When charging equipment is in holding state, control unit control exchange input contactor disconnects；When charging equipment is in charging electric vehicle state, at the t1 moment, control unit calculates the power module quantity for needing to open, preserve the numbering of the power module for needing to open and close respectively in array A and array B, be then shut off power module of the numbering in array B and open power module of the numbering in array A；Into after the t2 moment, control unit calculates the power module quantity that needs are opened, and the power module numbering closing in adjustment array A and array B is numbered the power module in array B and opens power module of the numbering in array A.The stand-by power consumption of this programme reduction charging equipment；When charging, the power module number of reasonable distribution work, it is to avoid power module works long hours in light condition saves electric energy.This programme is applied to electric automobile field.
Description
Technical field
The present invention relates to electric automobile energy control field, more particularly, to a kind of charging electric vehicle of low equipment loss
Control method.
Background technology
Charging equipment of electric automobile is made up of monitoring unit, control unit and multiple power modules.When standby, Suo You electricity
Electricity is standby on source module, and the rated power of charging equipment is bigger, and the stand-by power consumption of charging equipment is bigger, and for example stand-by power consumption is
100w, then annual 0.1*24*365=836kwh, serious waste electric energy, and increase operator cost；In charging process,
Control unit opens all power modules according to BMS charge requirement current values, and electric current is evenly distributed into system each power supply mould
On block, when BMS (battery management system, BATTERY MANAGEMENT SYSTEM) charge requirement current value is smaller, each mould
Block output current is also smaller, causes power module to work long hours in light condition, and the electric current of each power module output is less than
The 50% of rated current, power module operating efficiency is relatively low, serious waste electric energy.
The content of the invention
The present invention mainly solve existing for prior art power work state is unbalanced, inefficiency, waste tight
The technical problem for waiting again, there is provided it is a kind of with compared with high workload efficiency, the low equipment of equipment loss, save energy can be significantly reduced
The charging electric vehicle control method of loss.
The present invention is mainly what is be addressed by following technical proposals for above-mentioned technical problem：A kind of low equipment loss
Charging electric vehicle control method：
When charging equipment is in holding state, control unit control exchange input contactor disconnects, and stops giving power supply mould
Block is powered；
When charging equipment is connected with electric automobile and is not yet in charged state, control unit control A.C. contactor is inhaled
With, start to be powered to power module, prepare to charging electric vehicle；
When charging equipment is in charging electric vehicle state, comprise the following steps：
In S001, charging process, at the t1 moment, control unit is according to BMS charge-current demands Ineed_t1Calculate needs
The power module quantity N of unlatchingopen_t1, computing formula is as follows：
Nopen_t1=Ineed_t1/(Irate*D)
In formula, D is the peak efficiency of power module, IrateIt is the rated current of single power module；
S002, the N that preservation needs are opened in array Aopen_t1The numbering of individual power module, being preserved in array B needs
The N of closingclose_tiThe numbering of individual power module, Nclose_t1=N-Nopen_t1, N is the total quantity of power module；
S003, control unit close power module of the numbering in array B, set power module of the numbering in array A
Output voltage and electric current, be then turned on power module of the numbering in array A；
S004, into after the t2 moment, control unit is according to BMS charge-current demands Ineed_t2Calculate the electricity for needing to open
Source module quantity Nopen_t2, computing formula is as follows：
Nopen_t2=Ineed_t2/(Irate*D)；
S005, work as Nopen_t2More than Nopen_t1When, increase N in array Aopen_t2-Nopen_t1Individual power module numbering；When
Nopen_t2Less than Nopen_t1When, reduce N in array Aopen_t1-Nopen_t2Individual power module numbering；Work as Nopen_t2More than Nopen_t1When,
Power module numbering in array A and array B does not change.
S006, control unit close power module of the numbering in array B, set power module of the numbering in array A
Output voltage and electric current, be then turned on power module of the numbering in array A.
The t1 moment is large current charge pattern, and the t2 moment is trickle charge pattern.Calculate Nopen_t1And Nopen_t2When, use
Round number.
This programme reduces the stand-by power consumption of charging equipment in the power supply of holding state deenergization module；When charging, according to
According to the power module number that demand reasonable distribution works, the power module number of each working condition is set to be operated in optimum efficiency
Near point, it is to avoid power module works long hours in light condition, saves electric energy.
Preferably, needing the power module quantity N of unlatching when the t1 moment is calculatedopen_t1During less than 1, N is setopen_t1
A power module numbering is only preserved equal to 1, in array A；The power module quantity of unlatching is needed when the t1 moment is calculated
Nopen_t1During more than N, N is setopen_t1Equal to N, all power module numberings, power module numbering in array B are preserved in array A
It is sky.
Preferably, in step S005, working as Nopen_t2More than Nopen_t1When, increased N in array Aopen_t2-Nopen_t1It is individual
Power module numbering is selected according to the order for being stored in array B from after arriving first；
Work as Nopen_t2Less than Nopen_t1When, the N reduced in array Aopen_t1-Nopen_t2Individual power module numbering is according to being stored in
The order of array A is from rear to first being selected.
Preferably, the charging electric vehicle control method of low equipment loss includes two kinds of open modes, first mode is
Opening module Base Serial Number is M, is incremented by since M during selection opening module numbering；Second mode is opening module Base Serial Number
It is M-1, successively decreases since M-1 during selection opening module numbering；M spans are 1 to N, and set incremental one of N for 1,1 passs
It is N to subtract one, and M-1 is N during M=1, and M+1 is 1 during M=N.
Preferably, daily 00:When charging equipment is idle for the first time after 00, switch current open mode to another
Open mode.
By periodicity switching open mode, each power module can be made to take turns to operate, the state of each power module
Substantially it is consistent, extends the life-span of charging equipment.
Preferably, M is N for 1, M-1.
The substantial effect that the present invention brings is the number and each power supply that can periodically adjust the power module of unlatching
The output current of module so that the power module output current of work reduces the whole of charging equipment near best efficiency point D
Body is lost.
Brief description of the drawings
Fig. 1 is a kind of charging equipment structured flowchart of the invention；
Fig. 2 is a kind of charged state control flow chart of the invention；
In figure：1st, control unit, 2, power module, 3, vehicle BMS, 4, AC/DC converters.
Specific embodiment
Below by embodiment, and with reference to accompanying drawing, technical scheme is described in further detail.
Embodiment：As shown in figure 1, charging equipment includes control unit CU1, charging need of the control unit CU according to BMS3
Ask, calculating power module 2 needs the charging current of output.Charging equipment is also comprising multiple power modules.Control unit and each
Communicated using CAN between power module, realized the transmission and the passback of power module state of the control instructions such as switching on and shutting down.
Alternating current is converted to direct current by AC/DC converters 4, and according to the charge requirement for instructing output BMS of control unit.
The power module quantity that charging equipment is included is N, and the module output-current rating is Irate, its best efficiency point is
D。
When charging equipment is in holding state, control unit control exchange input contactor disconnects, and stops to power module
Power supply, to reduce charging equipment stand-by power consumption.
When charging equipment is connected with electric automobile and is not yet in charged state, control unit control A.C. contactor is inhaled
With, start to be powered to power module, prepare to charging electric vehicle.
When charging equipment is in charging electric vehicle state, as shown in Fig. 2 comprising the following steps：
In S001, charging process, at the t1 moment, control unit is according to BMS charge-current demands Ineed_t1Calculate needs
The power module quantity N of unlatchingopen_t1, computing formula is as follows：
Nopen_t1=Ineed_t1/(Irate*D)
In formula, D is the peak efficiency of power module, IrateIt is the rated current of single power module；
S002, the N that preservation needs are opened in array Aopen_t1The numbering of individual power module, being preserved in array B needs
The N of closingclose_tiThe numbering of individual power module, Nclose_t1=N-Nopen_t1, N is the total quantity of power module；Power supply is preserved to compile
Number when in order of numbers operated, such as need to be stored in 10 numberings in array A, then be sequentially stored into 10 since numbering 1
Array A, is then sequentially stored into array B since numbering 11 to N；
S003, control unit close power module of the numbering in array B, set power module of the numbering in array A
Output voltage and electric current, be then turned on power module of the numbering in array A；
S004, into after the t2 moment, control unit is according to BMS charge-current demands Ineed_t2Calculate the electricity for needing to open
Source module quantity Nopen_t2, computing formula is as follows：
Nopen_t2=Ineed_t2/(Irate*D)；
S005, work as Nopen_t2More than Nopen_t1When, increase N in array Aopen_t2-Nopen_t1Individual power module numbering；When
Nopen_t2Less than Nopen_t1When, reduce N in array Aopen_t1-Nopen_t2Individual power module numbering；Work as Nopen_t2More than Nopen_t1When,
Power module numbering in array A and array B does not change.
S006, control unit close power module of the numbering in array B, set power module of the numbering in array A
Output voltage and electric current, be then turned on power module of the numbering in array A.
The power module quantity N of unlatching is needed when the t1 moment is calculatedopen_t1During less than 1, N is setopen_t1Equal to 1, array
A power module numbering is only preserved in A；The power module quantity N of unlatching is needed when the t1 moment is calculatedopen_t1During more than N,
Setting Nopen_t1Equal to N, all power module numberings are preserved in array A, power module numbering is empty in array B.
In step S005, work as Nopen_t2More than Nopen_t1When, increased N in array Aopen_t2-Nopen_t1Individual power module is compiled
Number selected from after arriving first according to the order for being stored in array B；The power module numbering for for example in current array A storing is 1-
10, the power module numbering stored in array B is 11-N, and it is 3 that increased power module quantity is needed in array A, then by 11,12
Moved in array A from array B with 13 3 power module numberings；
Work as Nopen_t2Less than Nopen_t1When, the N reduced in array Aopen_t1-Nopen_t2Individual power module numbering is according to being stored in
The order of array A is from rear to first being selected.The power module numbering for for example in current array A storing is 1-10, is deposited in array B
The power module numbering of storage is 11-N, and it is 3 that the power module quantity for reducing is needed in array A, then by 10,9 and 8 three power supply moulds
Block number is moved in array B from array A；
This control includes two kinds of open modes, and first mode is that opening module Base Serial Number is 1, selection opening module numbering
When be incremented by since 1；Second mode is that opening module Base Serial Number is N, is successively decreased since N during selection opening module numbering.
Daily 00:When charging equipment is idle for the first time after 00, switch current open mode to another open mode.
This programme can stop being powered reduction stand-by power consumption to power module in charging equipment is standby；In charging process
In, being calculated according to BMS charging currents needs the number of opening module, the number of the power module that the dynamic adjustment in cycle is opened and
The output current of power module, closes partial power module so that the power module output current of work is in best efficiency point D
Near, usually 70%-80% is interval interior, reaches the purpose of the overall losses for reducing charging equipment.
Specific embodiment described herein is only to the spiritual explanation for example of the present invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from spirit of the invention or surmount scope defined in appended claims.
Although more having used the terms such as power module, control unit, BMS herein, it is not precluded from using other arts
The possibility of language.It is used for the purpose of more easily describing and explaining essence of the invention using these terms；It is construed as
The additional limitation of any one is all disagreed with spirit of the present invention.
Claims (6)
1. a kind of charging electric vehicle control method of low equipment loss, it is characterised in that：
When charging equipment is in holding state, control unit control exchange input contactor disconnects, and stops being supplied to power module
Electricity；
When charging equipment is connected with electric automobile and is not yet in charged state, control unit control A.C. contactor inhale and,
Start to be powered to power module, prepare to charging electric vehicle；
When charging equipment is in charging electric vehicle state, comprise the following steps：
In S001, charging process, at the t1 moment, control unit is according to BMS charge-current demands Ineed_t1Calculating needs what is opened
Power module quantity Nopen_t1, computing formula is as follows：
Nopen_t1=Ineed_t1/(Irate*D)
In formula, D is the peak efficiency of power module, IrateIt is the rated current of single power module；
S002, the N that preservation needs are opened in array Aopen_t1The numbering of individual power module, being preserved in array B needs what is closed
Nclose_tiThe numbering of individual power module, Nclose_t1=N-Nopen_t1, N is the total quantity of power module；
S003, control unit close power module of the numbering in array B, set the defeated of power module of the numbering in array A
Go out voltage and current, be then turned on power module of the numbering in array A；
S004, into after the t2 moment, control unit is according to BMS charge-current demands Ineed_t2Calculate the power supply mould for needing to open
Number of blocks Nopen_t2, computing formula is as follows：
Nopen_t2=Ineed_t2/(Irate*D)；
S005, work as Nopen_t2More than Nopen_t1When, increase N in array Aopen_t2-Nopen_t1Individual power module numbering；Work as Nopen_t2It is small
In Nopen_t1When, reduce N in array Aopen_t1-Nopen_t2Individual power module numbering；Work as Nopen_t2More than Nopen_t1When, array A and
Power module numbering in array B does not change.
S006, control unit close power module of the numbering in array B, set the defeated of power module of the numbering in array A
Go out voltage and current, be then turned on power module of the numbering in array A.
2. the charging electric vehicle control method of a kind of low equipment loss according to claim 1, it is characterised in that work as meter
Calculating the t1 moment needs the power module quantity N of unlatchingopen_t1During less than 1, N is setopen_t1Equal to 1, one is only preserved in array A
Individual power module numbering；The power module quantity N of unlatching is needed when the t1 moment is calculatedopen_t1During more than N, N is setopen_t1Deng
All power module numberings are preserved in N, array A, power module numbering is empty in array B.
3. the charging electric vehicle control method of a kind of low equipment loss according to claim 1 and 2, it is characterised in that
In step S005, work as Nopen_t2More than Nopen_t1When, increased N in array Aopen_t2-Nopen_t1Individual power module numbering is according to depositing
The order for entering array B is selected from after arriving first；
Work as Nopen_t2Less than Nopen_t1When, the N reduced in array Aopen_t1-Nopen_t2Individual power module numbering is according to being stored in array A
Order from rear to first being selected.
4. the charging electric vehicle control method of a kind of low equipment loss according to claim 1, it is characterised in that including
Two kinds of open modes, first mode is that opening module Base Serial Number is M, is incremented by since M during selection opening module numbering；Second
Pattern is that opening module Base Serial Number is M-1, is successively decreased since M-1 during selection opening module numbering；M spans are 1 to N,
And M-1 is N during M=1 for 1,1 successively decreases one for N to set incremental one of N, M+1 is 1 during M=N.
5. the charging electric vehicle control method of a kind of low equipment loss according to claim 4, it is characterised in that daily
00:When charging equipment is idle for the first time after 00, switch current open mode to another open mode.
6. the charging electric vehicle control method of a kind of low equipment loss according to claim 4 or 5, it is characterised in that M
It is that 1, M-1 is N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611220302.5A CN106856341A (en) | 2016-12-26 | 2016-12-26 | A kind of charging electric vehicle control method of low equipment loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611220302.5A CN106856341A (en) | 2016-12-26 | 2016-12-26 | A kind of charging electric vehicle control method of low equipment loss |
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| CN106856341A true CN106856341A (en) | 2017-06-16 |
Family
ID=59126656
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| CN201611220302.5A Pending CN106856341A (en) | 2016-12-26 | 2016-12-26 | A kind of charging electric vehicle control method of low equipment loss |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107813722A (en) * | 2017-10-31 | 2018-03-20 | 许继电源有限公司 | A kind of charging system and its charge power dynamic allocation method |
| CN111086409A (en) * | 2019-12-23 | 2020-05-01 | 宁波三星智能电气有限公司 | Charging start-stop control method for intelligent charging pile |
| WO2023125617A1 (en) * | 2021-12-30 | 2023-07-06 | 长春捷翼汽车科技股份有限公司 | Charging system and charging method for electric vehicle, and electric vehicle |
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| CN104065148A (en) * | 2014-07-08 | 2014-09-24 | 深圳市英可瑞科技开发有限公司 | Electric vehicle charging system and charging method |
| CN205231779U (en) * | 2015-11-27 | 2016-05-11 | 比亚迪汽车工业有限公司 | A charging system and machine that charges for electric automobile |
| CN106033904A (en) * | 2015-03-20 | 2016-10-19 | 深圳奥特迅电力设备股份有限公司 | Matrix-type flexible charging pile and charging method capable of dynamically allocating power |
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| CN102361337A (en) * | 2011-10-26 | 2012-02-22 | 国电龙源电力技术工程有限责任公司 | Charging unit, charger and charging machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107813722A (en) * | 2017-10-31 | 2018-03-20 | 许继电源有限公司 | A kind of charging system and its charge power dynamic allocation method |
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| CN111086409A (en) * | 2019-12-23 | 2020-05-01 | 宁波三星智能电气有限公司 | Charging start-stop control method for intelligent charging pile |
| WO2023125617A1 (en) * | 2021-12-30 | 2023-07-06 | 长春捷翼汽车科技股份有限公司 | Charging system and charging method for electric vehicle, and electric vehicle |
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Application publication date: 20170616 |