CN108539814A - Batteries of electric automobile is grouped multitap charging method and system - Google Patents
Batteries of electric automobile is grouped multitap charging method and system Download PDFInfo
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- CN108539814A CN108539814A CN201810355583.8A CN201810355583A CN108539814A CN 108539814 A CN108539814 A CN 108539814A CN 201810355583 A CN201810355583 A CN 201810355583A CN 108539814 A CN108539814 A CN 108539814A
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- 238000007600 charging Methods 0.000 title claims abstract description 126
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000009434 installation Methods 0.000 claims description 30
- 230000005611 electricity Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 3
- 238000012913 prioritisation Methods 0.000 description 3
- 206010037660 Pyrexia Diseases 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 102100036894 Protein patched homolog 2 Human genes 0.000 description 1
- 101710161395 Protein patched homolog 2 Proteins 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
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- H02J7/0027—
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- 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
- B60L53/60—Monitoring or controlling charging stations
-
- 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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
-
- 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
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
-
- 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
-
- 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
- Y02T90/12—Electric charging stations
-
- 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
Abstract
Batteries of electric automobile grouping multitap charging method and system, method provided by the invention include：When the total unit of observing and controlling receives the charging instruction of user, generates charge command and be sent to observing and controlling subelement；Charge command includes charge circuit to be charged；Charge circuit to be charged is connected in observing and controlling subelement；If the total unit of observing and controlling detects that voltage reaches preset voltage max in charge circuit to be charged, generates halt instruction and be sent to corresponding observing and controlling subelement；Observing and controlling subelement disconnects charge circuit to be charged, and corresponding discharge loop is connected, and wherein charge circuit and discharge loop is a plurality of.Charge circuit to be charged is connected when charging, by the total unit of observing and controlling in this method, and monitors the voltage of each charge circuit.When charge circuit is charged, power for electric vehicle.Charge circuit is equipped with a plurality of, this reduces the charging current of each charge circuit when fast charge, efficiently avoids when fast charge the problem of plug generates heat.
Description
Technical field
The present invention relates to electric vehicle charging technical fields, and in particular to batteries of electric automobile is grouped multitap charging
Method and system.
Background technology
Existing pure electric automobile fills power supply using single charging pile, single plug whole group battery.The weight of batteries of electric automobile
The energy density of about 300kg, battery are about 170WH/kg, and the electricity being completely filled with is 51000WH.When current fully charged
Between between 2-8 hours, charging current is about 15-20A.If fast charge, the charging time controlled at 30 minutes, and charging current exists
150-300A, but fast charge is larger due to charging current, it is easy to there is the case where plug fever.If the especially following battery
When energy density reaches 375WH/kg, then the charging time is restricted to 20 minutes.Charging current is up to 880A.Plug when fast charge
The problem of fever, will become big problem.
Invention content
Therefore, the purpose of the present invention is to provide batteries of electric automobile grouping multitap charging method and systems, can be effective
Ground solves the problems, such as that plug generates heat when fast charge existing in the prior art.
In a first aspect, a kind of batteries of electric automobile is grouped multitap charging method, include the following steps：
When the total unit of observing and controlling receives the charging instruction of user, generates charge command and be sent to observing and controlling subelement；It is described to fill
Electricity order includes charge circuit to be charged；
When observing and controlling subelement receives charge command, charge circuit to be charged is connected；Electric vehicle in electric installation
Charge circuit is a plurality of, and is respectively for the circuit between the power supply terminal and a charging plug of battery pack in electric installation；
If the total unit of observing and controlling detects that voltage reaches preset voltage max in charge circuit to be charged, generation stops
Only instruction is sent to corresponding observing and controlling subelement；
When observing and controlling subelement receives halt instruction, charge circuit to be charged is disconnected, corresponding discharge loop is connected；Electricity
Electrical automobile is a plurality of for discharge loop in electric installation, and is respectively the power supply terminal for battery pack in electric installation and electronic vapour
Circuit between the power supply buses of vehicle.
Further, this method further includes：
When the total unit of observing and controlling receives the electric discharge instruction of user, generates electric discharge order and be sent to observing and controlling subelement；It is described to put
Electricity order includes discharge loop to be discharged；
When observing and controlling subelement receives electric discharge order, discharge loop to be discharged is connected.
A kind of second aspect, batteries of electric automobile grouping multitap charging system, runs first aspect the method, including
Be arranged on electric vehicle for electric installation, and the multiple charging piles of setting on the ground；
Described for electric installation includes the total unit of observing and controlling, multiple charging plugs, multiple observing and controlling subelements and parallel with one another
Multiple battery packs；Wherein observing and controlling subelement includes four connectors：First connector, the second connector, third connector and
Four connectors；First connector of observing and controlling subelement connects the power supply terminal of a battery pack, the second connector and a charging plug
The power supply buses of connection, third connector and electric vehicle connect, the confession of the 4th connector and battery pack inside observing and controlling subelement
Electric terminal connects, and the 4th connector of observing and controlling subelement connects the total unit of observing and controlling；First connector of observing and controlling subelement and second connects
Charge circuit is formed between interface, and discharge loop is formed between the first connector and third connector of observing and controlling subelement；Observing and controlling
Subelement can select conducting charge circuit or discharge loop；
It is described to be filled in such a way that the charging plug being connect with battery pack is plugged on respectively on charging pile for electric installation
Electricity.
Further, the charging pile is disposed side by side on the ground at parking stall rear.
Further, the observing and controlling subelement includes sub-controller, voltage detecting instrument and two switches；The voltage
Detection instrument is connected in parallel on charge circuit, and two switches are connected on respectively in charge circuit or discharge loop；The voltage detecting
Instrument and two switches are electrically connected with sub-controller respectively.
Further, the total unit of the observing and controlling includes that first voltage Acquisition Circuit, second voltage Acquisition Circuit, voltage compare
Circuit and master controller；
4th connector of the observing and controlling subelement connects the input terminal of first voltage Acquisition Circuit, first voltage Acquisition Circuit
Output termination voltage comparator circuit first input end, second voltage Acquisition Circuit input termination electric vehicle for the goddess of lightning
Line, the second input terminal of the output termination voltage comparator circuit of second voltage Acquisition Circuit, the output termination of voltage comparator circuit
The voltage of master controller compares input terminal, and the voltage of master controller compares output termination sub-controller.
Further, the voltage comparator circuit includes first comparator and the second comparator；The first comparator
Electrode input end connects the negative input of the second comparator, and collectively as the first input end of voltage comparator circuit, access the
The output end of one voltage collection circuit；The negative input of the first comparator connects reference voltage by series resistance R1；The
Second input terminal of the electrode input end of two comparators as voltage comparator circuit connects second voltage acquisition by series resistance R2
The output end of circuit；The output end of output the second comparator of termination of first comparator, is collectively formed the defeated of voltage comparator circuit
Outlet.
Further, described identical as the quantity of charging pile for the quantity of battery pack, the quantity of charging plug in electric installation.
Further, the capacity specifications for battery pack in electric installation are identical.
Batteries of electric automobile grouping multitap charging method provided by the invention is led by the total unit of observing and controlling when charging
Logical charge circuit to be charged, and monitor the voltage of each charge circuit.When charge circuit is charged, charge circuit is disconnected,
Battery pack is connected on the power supply buses of electric vehicle, is powered for electric vehicle.Charge circuit be equipped with it is a plurality of, be reduced by this way
The charging current of each charge circuit when fast charge, efficiently avoids the problem of plug generates heat when fast charge.
Batteries of electric automobile provided by the invention is grouped multitap charging system, and the power supply system of electric vehicle is split into
Multiple battery packs are powered jointly, reduce the capacity of each battery pack, and add multiple charging piles.In use, an electricity
Pond group charges to one charging pile of application, is that electric vehicle is powered by battery pack combining when power supply.This reduces when fast charge
The charging current of each charge circuit, efficiently avoids the problem of plug generates heat when fast charge.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In attached drawing, each element or part are not
Centainly drawn according to actual ratio.
Fig. 1 is the flow chart one of charging method in embodiment one.
Fig. 2 is the flowchart 2 of charging method in embodiment one.
Fig. 3 is the module frame chart of charging system in embodiment three.
Fig. 4 is the module frame chart for electric installation in embodiment three.
Fig. 5 is that charging pile is mounted on the structural schematic diagram on parking stall in embodiment three.
Fig. 6 is the circuit diagram of voltage comparator circuit in embodiment five.
Fig. 7 is charge controlling chip and peripheral circuit diagram in embodiment six.
Specific implementation mode
The embodiment of technical solution of the present invention is described in detail below in conjunction with attached drawing.Following embodiment is only used for
Clearly illustrate technical scheme of the present invention, therefore be only used as example, and the protection model of the present invention cannot be limited with this
It encloses.
In the description of the present application, it is to be understood that the instructions such as term "upper", "lower", "front", "rear", "inner", "outside"
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention and simplification retouch
It states, does not indicate or imply the indicated device or element must have a particular orientation, with specific azimuth configuration and operation,
Therefore it is not considered as limiting the invention.
In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply relatively important
Property or implicitly indicate the quantity of indicated technical characteristic.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In this application unless specifically defined or limited otherwise, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are in direct contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is directly under or diagonally below the second feature, or is merely representative of fisrt feature level height and is less than second feature.
Embodiment one：
Embodiment one provides a kind of batteries of electric automobile grouping multitap charging method, referring to Fig. 1, including following step
Suddenly：
S1：When the total unit of observing and controlling receives the charging instruction of user, generates charge command and be sent to observing and controlling subelement；It is described
Charge command includes charge circuit to be charged；
Specifically, display screen can be set on electric vehicle, and display screen is equipped with multiple virtual switches, each virtual switch
Corresponding charge circuit all the way.Charging instruction can be obtained with user by clicking the virtual switch in display screen.Assuming that electric vehicle
It is upper to be provided with two-way charge circuit：Charge circuit A and charge circuit B.Then the virtual switch on display screen is two：Virtual switch
A and virtual switch B.Wherein virtual switch A controls charge circuit A chargings, virtual switch B control charge circuit B chargings.Work as user
Virtual switch A or virtual switch B is clicked, is charged to charge circuit A or charge circuit B.When two same time points of virtual key
When hitting, while charging to two-way charge circuit.Charging instruction can also be pressed by user the button being arranged on electric vehicle or
Switch obtains.
S2：When observing and controlling subelement receives charge command, charge circuit to be charged is connected；Electric vehicle for electric installation
Middle charge circuit is a plurality of, and is respectively for the circuit between the power supply terminal and a charging plug of battery pack in electric installation；
Specifically, for example, as the charge command instruction conducting charge circuit A or charge circuit B received, observing and controlling is single
Member conducting charge circuit A or charge circuit B.The battery pack charging of every charge circuit pair, i.e. a battery pack are inserted by charging
Head connects alternating current and charges.
S3：It is raw if the total unit of observing and controlling detects that voltage reaches preset voltage max in charge circuit to be charged
It is sent to corresponding observing and controlling subelement at halt instruction；
Specifically, the total unit of observing and controlling is responsible for the overall voltage for detecting all charge circuits, when the voltage of charge circuit reaches
When preset voltage max, stop charging so that the charging voltage of all charge circuits is consistent, and this makes it possible to ensure to own
Battery pack electric discharge when, voltage difference will not be formed, be not in circulation, can preferably avoid kwh loss.All chargings
The voltage max in circuit is all consistent.
S4：When observing and controlling subelement receives halt instruction, charge circuit to be charged is disconnected, conducting is corresponding to discharge back
Road；Electric vehicle for discharge loop in electric installation be it is a plurality of, and be respectively for battery pack in electric installation a power supply terminal with
Circuit between the power supply buses of electric vehicle.
Specifically, after charging complete, observing and controlling subelement, which can control battery pack and be connected on power supply buses, to discharge.Its
Middle each charge circuit corresponds to a discharge loop.
The power supply system of electric vehicle is split into multiple battery packs and is powered jointly by this method, reduces each battery
The capacity of group, and add multiple charging piles.In use, a battery pack charges to one charging pile of application, when power supply, by battery
Group combining is that electric vehicle is powered.This reduces the charging current of each charge circuit when fast charge, efficiently avoid fast
The problem of plug generates heat when filling.
As the prioritization scheme of the present embodiment, referring to Fig. 2, this method increase discharge loop selection functions.This method exists
Further include after step S4：
S5：When the total unit of observing and controlling receives the electric discharge instruction of user, generates electric discharge order and be sent to observing and controlling subelement；It is described
Electric discharge order includes discharge loop to be discharged；
Specifically, user can select whole discharge loops to be powered, can also the progress of selected section discharge loop
Power supply.For example, if there is 4 battery packs on electric vehicle, user can select 1,2,3 or 4 battery pack generally electric vehicle
Power supply.
S6：When observing and controlling subelement receives electric discharge order, discharge loop to be discharged is connected.
By the function, user can voluntarily be selected as the battery pack number of electric vehicle power supply according to actual conditions.When
When battery electric quantity deficiency, user can select to close the low battery pack of electricity.
Embodiment two：
In the method for embodiment one, the total unit of observing and controlling is by judging whether the charging voltage in charge circuit reaches voltage most
Big value finishes if reaching and being considered as charging.But due to different charging pile and battery pack its own state it is different, make
After even if whether charging voltage reach voltage max, still will appear small voltage difference in each road charge circuit, in this way
In electric discharge, voltage difference can form circulation, consume the energy content of battery.For this purpose, the present embodiment increases on the basis of embodiment one
Following methods, including：
S11：The total unit of observing and controlling acquires the voltage value of all charge circuits when detecting that all charge circuits disconnect；
Specifically, when all charge circuits disconnect, it is believed that charging finishes.Such as assume that electric vehicle has 4 battery packs,
After charging, the voltage value of collected all charge circuits is voltage value A, voltage value B, voltage value C, voltage value D.
S12：The total unit of observing and controlling calculates separately the difference between the voltage value of charge circuit and voltage max, defines difference
The voltage value of minimum charge circuit is reference voltage；
Specifically, it is assumed that voltage max is voltage value MAX, the total unit difference recording voltage value A and voltage value MAX of observing and controlling
Voltage difference A, voltage value B and voltage value MAX voltage difference B, voltage value C and voltage value MAX voltage difference C, voltage value D with electricity
The voltage difference D of pressure value MAX.And define the voltage of minimum charge circuit in voltage difference A, voltage difference B, voltage difference C and voltage difference D
Value is reference voltage, it is assumed that voltage difference A is minimum, then it is reference voltage to define voltage value A.By the voltage for defining voltage difference minimum
Value is reference voltage so that electric vehicle remains full of the state of electricity as possible.
S13：The total unit of observing and controlling calculates separately the voltage value of other charge circuits and the voltage difference of reference voltage；
Specifically, such as：The voltage difference AB, voltage value C and voltage value A of the total unit difference voltage value A and voltage value B of observing and controlling
Voltage difference AC, voltage value D and voltage value A voltage difference AD.
S14：If voltage difference is 0, the total unit of observing and controlling generates halt instruction and is sent to corresponding observing and controlling subelement, controls observing and controlling
Subelement disconnects charge circuit to be charged, and corresponding discharge loop is connected；
Specifically, if voltage difference AB, voltage difference AC or voltage difference AD are 0, illustrate charge circuit A and charge circuit B
Charging voltage it is identical, charge circuit A is identical as the charging voltage of charge circuit C, the charging of charge circuit A and charge circuit D
Voltage is identical, need not continue to charge to charge circuit B, charge circuit C and charge circuit D at this time.
S15：If voltage difference is not 0, and the voltage value of other charge circuits is less than reference voltage, calculates the charge circuit
Charging time, the total unit of observing and controlling generate charging instruction and are sent to corresponding observing and controlling subelement, and control observing and controlling subelement is according to charging
Time continues to charge to the charge circuit；Wherein the charging time is equal to voltage difference divided by the charge rate of the battery pack.
Specifically, if voltage difference AB, voltage difference AC or voltage difference AD are not 0, and voltage value B, voltage value C or voltage value
D is less than voltage value A, illustrates that there is also pressure differences by charge circuit B, charge circuit C or charge circuit D and charge circuit A, in order to more preferable
Ground ensures that the voltage value of all charge circuits is consistent, continues to charge to charge circuit B, charge circuit C or charge circuit D.
Specifically, the total unit of observing and controlling also records the charge rate of all charging piles.When the total unit of observing and controlling is charged by controlling
Between ensure that charging voltage is consistent.If after completing a wheel charging, the voltage of arbitrary two charge circuits is also detected not
When consistent, continue to adjust the inconsistent charge circuit of voltage so that the voltage value of all charge circuits is identical.
In this way, the total unit of observing and controlling can carry out secondary detection to the voltage value of charge circuit so that all chargings
The charging voltage in circuit is preferably kept unanimously.
Embodiment three：
Referring to Fig. 3-5, a kind of batteries of electric automobile that embodiment three provides is grouped multitap charging system, runs embodiment
One, the method described in two；Including being arranged on electric vehicle for electric installation, and the multiple charging piles 6 of setting on the ground；
Described for electric installation includes the total unit 5 of observing and controlling, multiple charging plugs 4, multiple observing and controlling subelements 2 and parallel with one another
Multiple battery packs 3；Wherein observing and controlling subelement 2 includes four connectors：First connector, the second connector, third connector
With the 4th connector；First connector of observing and controlling subelement 2 connects the power supply terminal of a battery pack 3, and the second connector is filled with one
Plug 4 connects, and the power supply buses 1 of third connector and electric vehicle connect, the 4th connector and electricity inside observing and controlling subelement
The power supply terminal of pond group connects, and the 4th connector of observing and controlling subelement connects the total unit of observing and controlling 5；First connection of observing and controlling subelement 2
Charge circuit is formed between mouth and the second connector, is formed and is put between the first connector and third connector of observing and controlling subelement 2
Electrical circuit；Observing and controlling subelement 2 can select conducting charge circuit or discharge loop；
It is described to be carried out in such a way that the charging plug 4 being connect with battery pack is plugged on respectively on charging pile 6 for electric installation
Charging.
Specifically, the quantity of battery pack is determined according to the complete machine power consumption of electric vehicle, for bigger big of power consumption
Type vehicle, such as：Bus, lorry etc., power supply unit are battery-powered by four groups.For the small compact car of power consumption, such as：Often
The car seen, power supply unit only need two groups it is battery-powered, daily demand can be met.When observing and controlling subelement selects to be connected
Charge circuit and when being plugged on charging pile for the charging plug of electric installation, charges to battery pack.When battery pack is fully charged
Observing and controlling subelement selection conducting charge circuit afterwards, the power supply terminal of battery pack is directly connected on power supply buses, is electronic vapour
Vehicle is powered.
The total unit of observing and controlling is used to detect the charging voltage of all battery packs, when the charging voltage charging complete of battery pack,
Discharge loop is connected in notice observing and controlling subelement in time, keeps the charging voltage of all battery packs consistent.
The battery pack that the power supply system of electric vehicle is split into multiple low capacities by the system is powered jointly, is reduced
The capacity of each battery pack, and add multiple charging piles.In use, a battery pack charges to one charging pile of application, power supply
When, it is that electric vehicle is powered by battery pack combining.This reduces the charging currents of each charge circuit when fast charge, effectively
The problem of charging plug generates heat when avoiding fast charge.
As the preferred embodiment of the present embodiment, the charging pile 6 is disposed side by side on the ground at 7 rear of parking stall.This is
System is especially suitable on private car parking stall.Owner is according to the battery pack quantity for electric installation in private car, in private car parking stall
On add corresponding charging pile.Charging pile is arranged at parking stall rear, ensure that the normal use on parking stall, does not influence automobile and stop
Vehicle.
Example IV：
Example IV increases the following contents on the basis of embodiment three：
The observing and controlling subelement 2 includes sub-controller, voltage detecting instrument and two switches；The voltage detecting instrument
It is connected in parallel on charge circuit, two switches are connected on respectively in charge circuit or discharge loop；The voltage detecting instrument and
Two switches are electrically connected with sub-controller respectively；
4th connector of the observing and controlling subelement is electrically connected with sub-controller.
Specifically, when voltage detecting instrument is for detecting charging, the voltage of charge circuit judges whether charging is completed.It surveys
Which circuit the closure and break-make for controlling subelement selection control switch, be connected to control.Two switches can only be closed one of them and open
It closes.The switch can be electromagnetic switch, electromagnetic relay, unidirectional thyristor etc..Controller uses microcomputer chip, such as
51 microcontrollers, ARM etc..When being closed the switch of charge circuit, that is, charge circuit is connected.When being closed the switch of discharge loop,
Discharge loop is connected.
It is described for the quantity of battery pack, the quantity of charging plug in electric installation and to fill as the prioritization scheme of the present embodiment
The quantity of electric stake is identical.Each battery pack charges to one charging pile of application, can guarantee that electric vehicle can once fill in this way
The charging to all battery packs is completed in electric process.
As the prioritization scheme of the present embodiment, the capacity specifications for battery pack in electric installation are identical.In this way, can guarantee
After all battery packs charge electricity, charging voltage is consistent as possible.
Embodiment five：
Embodiment five increases the following contents on the basis of embodiment three to four：
The total unit of observing and controlling includes first voltage Acquisition Circuit, second voltage Acquisition Circuit, voltage comparator circuit and total
Controller；
4th connector of the observing and controlling subelement connects the input terminal of first voltage Acquisition Circuit, first voltage Acquisition Circuit
Output termination voltage comparator circuit first input end, second voltage Acquisition Circuit input termination electric vehicle for the goddess of lightning
Line, the second input terminal of the output termination voltage comparator circuit of second voltage Acquisition Circuit, the output termination of voltage comparator circuit
The voltage of master controller compares input terminal, and the voltage of master controller compares output termination sub-controller.
Specifically, first voltage Acquisition Circuit is used to acquire the voltage of battery pack, and the acquisition of second voltage Acquisition Circuit is electronic
The voltage of the power supply buses of automobile, voltage comparator circuit are compared the voltage of battery pack and the voltage of power supply buses, and will
Comparison result is transmitted to master controller, and master controller is transmitted to sub-controller control switch and is opened or closed.Voltage collection circuit can be with
Realize that master controller includes but not limited to 51 microcontrollers, ARM etc. by the voltage comparing function that master controller carries.Voltage is adopted
Collector can also use voltage acquisition chip to realize, such as：ZH-40121.
Further, referring to Fig. 6, the voltage comparator circuit includes first comparator and the second comparator；Described first
The electrode input end of comparator connects the negative input of the second comparator, and collectively as the first input of voltage comparator circuit
The output end Uin of first voltage Acquisition Circuit is accessed at end；The negative input of the first comparator is connect by series resistance R1
Reference voltage UR1；Second input terminal of the electrode input end of second comparator as voltage comparator circuit, passes through series resistance R2
Meet the output end UR2 of second voltage Acquisition Circuit；The output end of output the second comparator of termination of first comparator, is collectively formed
The output end of voltage comparator circuit.
Specifically, the model LM339 of comparator.Reference voltage UR1 by user determines according to actual conditions.At Uin
When between UR1 and UR2, output end U0 exports high level；Otherwise, output end U0 exports low level.Window voltage be UR1 with
UR2 differences.
Embodiment six：
Embodiment six increases the following contents on the basis of embodiment three to five：
Referring to Fig. 7, charge controlling chip and charging control circuit are additionally provided on the charging pile；
The charging control circuit includes 485 chip U4, switching tube V5, switching tube V6, diode D13 and transition diode
D14；Two 485 communication interfaces of charge controlling chip connect the ground level of switching tube V5 and switching tube V6, the current collection of switching tube V5 respectively
The collector of pole and switching tube V6 connect the 2nd terminal and the 3rd terminal of 485 chip U4, the collector and switching tube V6 of switching tube V5
Collector 5V power supplys are pulled to by resistance R30, the emitter of switching tube V5 and the emitter ground connection of switching tube V6；485 cores
The 4th terminal of piece U4 is grounded by resistance R39；The 1st terminal of 485 chip U4 passes through reversal connection diode D13 successively and resistance R31
Connect 3.3V power supplys, the public terminal of diode D13 and resistance R31 are electrically connected with charge controlling chip；The 7th end of 485 chip U4
Son is grounded by resistance R37, and the 7th terminal of 485 chip U4 connects the 2nd terminal of 485 terminal J22 by thermistor PTC2；485
The 6th terminal of chip U4 connects 5V power supplys by resistance R32, and the 6th terminal of 485 chip U4 connects the 1st terminal of 485 terminal J22, wink
Become the both ends diode D14 to connect respectively between the 6th terminal and the 7th terminal of 485 chip U4.
Specifically, 485 chip U4 use MAX485ESA models.Switching tube V5, switching tube V6 each serve as the work of switching tube
With, when charge controlling chip exports high level, switching tube conducting, the 2nd, the 3 terminal input high levels of 485 chip U4；Conversely,
The 2nd, the 3 terminal input low levels of 485 chip U4.Transition diode D14 and thermistor play lightning protection, overcurrent protection.In this way
The data that remote server or client can access charging pile by 485, or control charging pile work.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover in the claim of the present invention and the range of specification.
Claims (9)
1. a kind of batteries of electric automobile is grouped multitap charging method, which is characterized in that include the following steps：
When the total unit of observing and controlling receives the charging instruction of user, generates charge command and be sent to observing and controlling subelement；The charging life
Enable includes charge circuit to be charged；
When observing and controlling subelement receives charge command, charge circuit to be charged is connected；Electric vehicle for charging in electric installation
Circuit is a plurality of, and is respectively for the circuit between the power supply terminal and a charging plug of battery pack in electric installation；
If the total unit of observing and controlling detects that voltage reaches preset voltage max in charge circuit to be charged, generates and stop referring to
Order is sent to corresponding observing and controlling subelement；
When observing and controlling subelement receives halt instruction, charge circuit to be charged is disconnected, corresponding discharge loop is connected；Electronic vapour
Vehicle is a plurality of for discharge loop in electric installation, and is respectively the power supply terminal and electric vehicle for battery pack in electric installation
Circuit between power supply buses.
2. batteries of electric automobile is grouped multitap charging method according to claim 1, which is characterized in that this method is also wrapped
It includes：
When the total unit of observing and controlling receives the electric discharge instruction of user, generates electric discharge order and be sent to observing and controlling subelement；The electric discharge life
Enable includes discharge loop to be discharged；
When observing and controlling subelement receives electric discharge order, discharge loop to be discharged is connected.
3. a kind of batteries of electric automobile is grouped multitap charging system, which is characterized in that operation electronic vapour described in claim 1
Vehicle battery group multitap charging method, including be arranged on electric vehicle for electric installation, and setting on the ground more
A charging pile；
Described for electric installation includes the total unit of observing and controlling, multiple charging plugs, multiple observing and controlling subelements and parallel with one another multiple
Battery pack；Wherein observing and controlling subelement includes four connectors：First connector, the second connector, third connector and the 4th connect
Interface；First connector of observing and controlling subelement connects the power supply terminal of a battery pack, and the second connector is connect with a charging plug,
The power supply buses of third connector and electric vehicle connect, the power supply terminal of the 4th connector and battery pack inside observing and controlling subelement
Connection, the 4th connector of observing and controlling subelement connect the total unit of observing and controlling；The first connector and the second connector of observing and controlling subelement it
Between form charge circuit, form discharge loop between the first connector and third connector of observing and controlling subelement；Observing and controlling subelement
It can select conducting charge circuit or discharge loop；
It is described to charge in such a way that the charging plug being connect with battery pack is plugged on respectively on charging pile for electric installation.
4. batteries of electric automobile is grouped multitap charging system according to claim 3, which is characterized in that
The charging pile is disposed side by side on the ground at parking stall rear.
5. batteries of electric automobile is grouped multitap charging system according to claim 3, which is characterized in that
The observing and controlling subelement includes sub-controller, voltage detecting instrument and two switches；The voltage detecting instrument is in parallel
On charge circuit, two switches are connected on respectively in charge circuit or discharge loop；The voltage detecting instrument and two
Switch is electrically connected with sub-controller respectively.
6. batteries of electric automobile is grouped multitap charging system according to claim 5, which is characterized in that
The total unit of observing and controlling includes first voltage Acquisition Circuit, second voltage Acquisition Circuit, voltage comparator circuit and master control
Device；
4th connector of the observing and controlling subelement connects the input terminal of first voltage Acquisition Circuit, first voltage Acquisition Circuit it is defeated
Go out to terminate the first input end of voltage comparator circuit, the power supply buses of the input termination electric vehicle of second voltage Acquisition Circuit,
Second input terminal of the output termination voltage comparator circuit of second voltage Acquisition Circuit, the output of voltage comparator circuit terminate master control
The voltage of device processed compares input terminal, and the voltage of master controller compares output termination sub-controller.
7. batteries of electric automobile is grouped multitap charging system according to claim 6, which is characterized in that
The voltage comparator circuit includes first comparator and the second comparator；The electrode input end of the first comparator connects
The negative input of two comparators, and collectively as the first input end of voltage comparator circuit, access first voltage Acquisition Circuit
Output end；The negative input of the first comparator connects reference voltage by series resistance R1；The anode of second comparator
Second input terminal of the input terminal as voltage comparator circuit, the output end of second voltage Acquisition Circuit is connect by series resistance R2；
The output end of output the second comparator of termination of first comparator, is collectively formed the output end of voltage comparator circuit.
8. batteries of electric automobile is grouped multitap charging system according to claim 3, which is characterized in that
It is described identical as the quantity of charging pile for the quantity of battery pack, the quantity of charging plug in electric installation.
9. batteries of electric automobile is grouped multitap charging system according to claim 3, which is characterized in that
The capacity specifications for battery pack in electric installation are identical.
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| CN201810355583.8A CN108539814B (en) | 2018-04-19 | 2018-04-19 | Electric vehicle battery grouping multi-plug charging method and system |
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| CN201810355583.8A CN108539814B (en) | 2018-04-19 | 2018-04-19 | Electric vehicle battery grouping multi-plug charging method and system |
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| US5646534A (en) * | 1995-01-06 | 1997-07-08 | Chrysler Corporation | Battery monitor for electric vehicles |
| CN201663468U (en) * | 2010-01-08 | 2010-12-01 | 罗征南 | Storage battery with grids capable of charging simultaneously and charger with multiple circuits connected in parallel |
| CN201812901U (en) * | 2010-10-19 | 2011-04-27 | 胡姜平 | Cell module and charge module for charging cell module |
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| CN104767253A (en) * | 2015-04-29 | 2015-07-08 | 李灿欣 | Multi-storage-battery grouping and simultaneous charging device |
| CN107128194A (en) * | 2017-05-11 | 2017-09-05 | 上海容申智能科技有限公司 | A kind of intelligent charging system |
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2018
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5646534A (en) * | 1995-01-06 | 1997-07-08 | Chrysler Corporation | Battery monitor for electric vehicles |
| CN201663468U (en) * | 2010-01-08 | 2010-12-01 | 罗征南 | Storage battery with grids capable of charging simultaneously and charger with multiple circuits connected in parallel |
| CN102122741A (en) * | 2010-01-08 | 2011-07-13 | 罗征南 | Storage battery with simultaneously rechargeable unit cells and multipath parallel-connected charger |
| CN201812901U (en) * | 2010-10-19 | 2011-04-27 | 胡姜平 | Cell module and charge module for charging cell module |
| CN104767253A (en) * | 2015-04-29 | 2015-07-08 | 李灿欣 | Multi-storage-battery grouping and simultaneous charging device |
| CN107128194A (en) * | 2017-05-11 | 2017-09-05 | 上海容申智能科技有限公司 | A kind of intelligent charging system |
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| Publication number | Publication date |
|---|---|
| CN108539814B (en) | 2020-07-07 |
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