CN110352543A - A kind of charging system and vehicle of vehicle - Google Patents
A kind of charging system and vehicle of vehicle Download PDFInfo
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- CN110352543A CN110352543A CN201880006893.7A CN201880006893A CN110352543A CN 110352543 A CN110352543 A CN 110352543A CN 201880006893 A CN201880006893 A CN 201880006893A CN 110352543 A CN110352543 A CN 110352543A
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- battery
- switch
- switching tube
- charging
- switching
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- 239000003990 capacitor Substances 0.000 claims description 14
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- 239000004065 semiconductor Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- CUZMQPZYCDIHQL-VCTVXEGHSA-L calcium;(2s)-1-[(2s)-3-[(2r)-2-(cyclohexanecarbonylamino)propanoyl]sulfanyl-2-methylpropanoyl]pyrrolidine-2-carboxylate Chemical compound [Ca+2].N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1.N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1 CUZMQPZYCDIHQL-VCTVXEGHSA-L 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
-
- 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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0024—Parallel/serial switching of connection of batteries to charge or load circuit
-
- H02J7/0026—
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- 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
Abstract
A kind of charging system of vehicle, including switch changer-over device (30) and the first dc-battery (10) and the second dc-battery (20), in the case where the supply voltage of charging equipment is greater than or equal to first voltage and is less than second voltage, first dc-battery is controlled by switch changer-over device (30) and the second dc-battery is in parallel, realizes low pressure charging；In the case where the supply voltage of the charging equipment is greater than or equal to the second voltage, first dc-battery is controlled by the switch changer-over device (30) and the second dc-battery is connected, realizes high-voltage charging.Also disclose a kind of vehicle including the charging system.The charging system improves the universality of charging equipment, commonality, reduces the construction cost of vehicle special charging equipment.
Description
Technical field
This application involves electric car charging technique fields, and in particular to a kind of charging system and vehicle of vehicle.
Background technique
With the enhancing of people's environmental consciousness, more and more electric cars are instead of original fuel automobile.But it is electric
Electrical automobile needs irregular charged also to constrain its fast development.
Currently, each electric car is only capable of charging using the charging pile of certain corresponding a kind of voltage class, and
It cannot be charged with the charging pile of another kind of voltage class.For example, the electric car of 400V is only capable of charging using the charging pile of 400V,
The charging pile of the higher 800V of voltage cannot be used.That is, if the voltage class of the power supply of electric car and charging pile mismatch,
Even if there is high-voltage charging stake, can not charge to electric vehicle, it is seen then that current electric car and charging pile compatibility compared with
Difference.
Therefore, needing one kind can be using existing low pressure charging pile come for Vehicular charging and using high-voltage charging stake
The technology of quick charge.
Apply for content
In consideration of it, the application provides a kind of vehicle charging system and vehicle, the charging system both can use existing low
Press charging equipment to Vehicular charging, moreover it is possible to charge using high-voltage charging equipment, realize that different charging equipments can be same
Vehicular charging improves the utilization rate and universality of charging equipment.
In a first aspect, this application provides a kind of charging system of vehicle, including the first dc-battery, the second dc-battery
And switch changer-over device；The switch changer-over device includes first switching element, second switch element and third switch element；Its
In, the first switching element is connected between the cathode of first dc-battery and the cathode of second dc-battery,
The second switch element is connected between the cathode of first dc-battery and the anode of second dc-battery, described
Third switch element is connected between the anode of positive and described second dc-battery of first dc-battery；
It is charged using charging equipment to the charging system, anode and first direct current of the charging equipment
The anode connection in pond, the cathode of the charging equipment are connect with the cathode of second dc-battery；
In the case where the supply voltage of the charging equipment is greater than or equal to first voltage and is less than second voltage, pass through
The conducting of the first switching element and third switch element controls first dc-battery and the second dc-battery is in parallel, with
Realize low pressure charging；
In the case where the supply voltage of the charging equipment is greater than or equal to the second voltage, opened by described second
The conducting for closing element controls first dc-battery and the series connection of the second dc-battery, to realize high-voltage charging；Wherein, described
One voltage is the maximum value between the virtual voltage of first dc-battery and the virtual voltage of second dc-battery, institute
State the sum of the virtual voltage of virtual voltage and second dc-battery that second voltage is first dc-battery.
Wherein, the charging system further includes charging balanced circuit, and it is straight that the charging balanced circuit is serially connected in described first
Between galvanic battery and second dc-battery；The charging balanced circuit be used for the first switching element conducting after and
Before the third switching elements conductive, extremely by the virtual voltage equilibrium of first dc-battery and second dc-battery
It is equal.
Wherein, the charging balanced circuit includes first port, second port, third port and the 4th port；Wherein, institute
It states first port and the third port is separately connected the anode and cathode of first dc-battery, the second port and institute
State anode and cathode that the 4th port is separately connected second dc-battery, the first port and first dc-battery
Anode between be additionally provided with the first switching element, is additionally provided between the second port and the anode of second dc-battery
Two switching elements；
After first switching element conducting and before the third switching elements conductive, switch by described first
The conducting of element and second switching element controls the charging balanced circuit work.
Wherein, the charging balanced circuit includes transformer, the first inductance, first capacitor, first switch tube, second switch
Pipe, third switching tube, the 4th switching tube, the 5th switching tube, the 6th switching tube, the 7th switching tube and the 8th switching tube, the change
Depressor includes armature winding and secondary windings；
Wherein, the drain electrode of the first switch tube and the second switch is respectively connected to the one of first inductance
End, the other end of first inductance are connected to first switching element；The drain electrode connection described the of the third switching tube
The source electrode of two switching tubes, the drain electrode of the 4th switching tube connect the source electrode of the first switch tube, the first switch tube
Source electrode is additionally coupled to the first end of the armature winding, and the source electrode of the second switch is additionally coupled to the of the armature winding
The source electrode of two ends, the third switching tube and the 4th switching tube is respectively connected to the cathode of first dc-battery；
The drain electrode of 5th switching tube and the 6th switching tube is respectively connected to second switching element；Described
The drain electrode of seven switching tubes connects the source electrode of the 6th switching tube, and the drain electrode of the 8th switching tube connects the 5th switching tube
Source electrode, the source electrode of the 5th switching tube is additionally coupled to the first end of the secondary windings, the source electrode of the 6th switching tube
It is additionally coupled to the second end of the secondary windings, the source electrode of the 7th switching tube and the 8th switching tube is respectively connected to institute
State the cathode of the second dc-battery；The first capacitor is connected in parallel on the negative of second switching element and second dc-battery
Between pole.
Wherein, if the virtual voltage of first dc-battery is greater than the virtual voltage of second dc-battery,
In first time period, the first switch tube and the third switching tube are first connected, the 5th switching tube described later and described
The conducting of seven switching tubes, in second time period, the second switch and the 4th switching tube are first connected, and later the described 6th
Switching tube and the 8th switching tube conducting, realize the first power transfer in the first time period and the second time period
Function, the first power transfer function are used to power reaching the secondary windings side by the armature winding side, repeat institute
The first power transfer function in first time period and the second time period is stated, until first dc-battery and institute
The virtual voltage equilibrium of the second dc-battery is stated to equal；
If the virtual voltage of first dc-battery is less than the virtual voltage of second dc-battery, in third
Between in section, the 5th switching tube and the 7th switching tube are first connected, later the first switch tube and third switch
Pipe conducting；Within the 4th period, the 6th switching tube and the 8th switching tube are first connected, later the second switch
It is connected with the 4th switching tube, realizes the second power transfer function within the third period and the 4th period,
The second power transfer function is used to power reaching the armature winding side by the secondary windings side, repeats the third
The second power transfer function in period and the 4th period, until first dc-battery and described second
The virtual voltage equilibrium of dc-battery is to equal.
Wherein, the first time period is equal with the duration of the second time period；The third period and described the
The duration of four periods is equal.
Wherein, the charging system further includes control module, the control module respectively with the switch changer-over device and
The charging balanced circuit electrical connection, is opened for controlling the first switching element, the second switch element and the third
The on or off of element is closed, and for controlling the charging balanced circuit work or not working.
Wherein, the voltage rating of first dc-battery and second dc-battery is equal.
Wherein, the charging system further includes that the first reverse connecting protection element, the second reverse connecting protection element and third reversal connection are protected
Protection element；The first reverse connecting protection element is in parallel with the first switching element, the second reverse connecting protection element with it is described
Second switch element in parallel, the third reverse connecting protection element are in parallel with the third switch element.
Wherein, the first switching element, the second switch element and the third switch element respectively include MOS
One of pipe, triode, insulated gate bipolar transistor and dynamic circuit connector type relay are a variety of.
Wherein, the charging system further includes that the first overflow protecting element, the second overflow protecting element and third overcurrent are protected
Protection element；First overflow protecting element is connected with the first switching element, second overflow protecting element with it is described
The series connection of second switch element, third overflow protecting element are connected with the third switch element.
Second aspect, this application provides a kind of vehicles, described including the charging system as described in the application first aspect
Charging system includes the first dc-battery, the second dc-battery and switch changer-over device, and the switch changer-over device includes first
Switch element, second switch element and third switch element；Wherein, the first switching element is connected to first direct current
Between the cathode in pond and the cathode of second dc-battery, the second switch element is connected to first dc-battery
Between cathode and the anode of second dc-battery, the third switch element is connected to the anode of first dc-battery
Between the anode of second dc-battery；
It is charged using charging equipment to the charging system, anode and first direct current of the charging equipment
The anode connection in pond, the cathode of the charging equipment are connect with the cathode of second dc-battery；
In the case where the supply voltage of the charging equipment is greater than or equal to first voltage and is less than second voltage, pass through
The conducting of the first switching element and third switch element controls first dc-battery and the second dc-battery is in parallel, with
Realize low pressure charging；
In the case where the supply voltage of the charging equipment is greater than or equal to the second voltage, opened by described second
The conducting for closing element controls first dc-battery and the series connection of the second dc-battery, to realize high-voltage charging；Wherein, described
One voltage is the maximum value between the virtual voltage of first dc-battery and the virtual voltage of second dc-battery, institute
State the sum of the virtual voltage of virtual voltage and second dc-battery that second voltage is first dc-battery.
Wherein, the charging system further includes charging balanced circuit, and it is straight that the charging balanced circuit is serially connected in described first
Between galvanic battery and second dc-battery；The charging balanced circuit be used for the first switching element conducting after and
Before the third switching elements conductive, extremely by the virtual voltage equilibrium of first dc-battery and second dc-battery
It is equal.
Wherein, the charging balanced circuit includes first port, second port, third port and the 4th port；Wherein, institute
It states first port and the third port is separately connected the anode and cathode of first dc-battery, the second port and institute
State anode and cathode that the 4th port is separately connected second dc-battery, the first port and first dc-battery
Anode between be additionally provided with the first switching element, is additionally provided between the second port and the anode of second dc-battery
Two switching elements；
After first switching element conducting and before the third switching elements conductive, switch by described first
The conducting of element and second switching element controls the charging balanced circuit work.
Wherein, the charging balanced circuit includes transformer, the first inductance, first capacitor, first switch tube, second switch
Pipe, third switching tube, the 4th switching tube, the 5th switching tube, the 6th switching tube, the 7th switching tube and the 8th switching tube, the change
Depressor includes armature winding and secondary windings；
Wherein, the drain electrode of the first switch tube and the second switch is respectively connected to the one of first inductance
End, the other end of first inductance are connected to first switching element；The drain electrode connection described the of the third switching tube
The source electrode of two switching tubes, the drain electrode of the 4th switching tube connect the source electrode of the first switch tube, the first switch tube
Source electrode is additionally coupled to the first end of the armature winding, and the source electrode of the second switch is additionally coupled to the of the armature winding
The source electrode of two ends, the third switching tube and the 4th switching tube is respectively connected to the cathode of first dc-battery；
The drain electrode of 5th switching tube and the 6th switching tube is respectively connected to second switching element；Described
The drain electrode of seven switching tubes connects the source electrode of the 6th switching tube, and the drain electrode of the 8th switching tube connects the 5th switching tube
Source electrode, the source electrode of the 5th switching tube is additionally coupled to the first end of the secondary windings, the source electrode of the 6th switching tube
It is additionally coupled to the second end of the secondary windings, the source electrode of the 7th switching tube and the 8th switching tube is respectively connected to institute
State the cathode of the second dc-battery；The first capacitor is connected in parallel on the negative of second switching element and second dc-battery
Between pole.Application
The charging system of vehicle provided by the present application, including the first dc-battery, the second dc-battery and switch conversion dress
It sets, it can be according to the confession of the first dc-battery when charging and the virtual voltage and the charging equipment for Vehicular charging of the second dc-battery
Relationship between piezoelectric voltage, to adjust the connection relationship between two dc-batteries, to both can use low pressure charging equipment pair
Vehicular charging, moreover it is possible to be charged using high-voltage charging equipment, realize that different charging equipments can be same Vehicular charging, improve
The universality of charging equipment, commonality, reduce the construction cost of vehicle special charging equipment.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the charging system of the first vehicle disclosed in the embodiment of the present application；
Fig. 2 is the structural schematic diagram of the charging system of second of vehicle disclosed in the embodiment of the present application；
Fig. 3 is the structural schematic diagram of the charging system of the third vehicle disclosed in the embodiment of the present application；
Fig. 4 is the structural schematic diagram of the charging system of the 4th kind of vehicle disclosed in the embodiment of the present application；
Fig. 5 is the waveform diagram of transformer two sides voltage, electric current in Fig. 4；
Fig. 6 is the structural schematic diagram of the charging system of the 5th kind of vehicle disclosed in the embodiment of the present application.
Specific embodiment
Below in conjunction with the attached drawing in the application embodiment, the technical solution in the application embodiment is carried out clear
Chu is fully described by.Obviously, described embodiment is a part of embodiment of the application, rather than whole embodiment party
Formula.Based on the embodiment in the application, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained all should belong to the range of the application protection.
In addition, the explanation of following embodiment is referred to the additional illustration, the spy that can be used to implement to illustrate the application
Determine embodiment.The direction term being previously mentioned in the application, for example, "upper", "lower", "front", "rear", "left", "right", "inner",
"outside", " side " etc. are only the directions with reference to annexed drawings, and therefore, the direction term used is to more preferably, more clearly say
It is bright and understand the application, rather than indicate or imply signified device or element and must have a particular orientation, with specific side
Position construction and operation, therefore should not be understood as the limitation to the application.
In the description of the present application, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, is also possible to detachably connected, or integrally connects
It connects；It can be mechanical connection；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The connection in portion.For the ordinary skill in the art, the tool of above-mentioned term in this application can be understood with concrete condition
Body meaning.
In addition, unless otherwise indicated, the meaning of " plurality " is two or more in the description of the present application.If this
Occur the term of " process " in specification, refers not only to independent process, when can not clearly be distinguished with other process, as long as
Effect desired by the process is able to achieve then to be also included in this term.In addition, the numerical value indicated in this specification with " ~ "
The range that the numerical value that range is recorded before and after referring to " ~ " is included as minimum value and maximum value.In the accompanying drawings, it ties
The similar or identical unit of structure is indicated by the same numeral.
The embodiment of the present application provides a kind of charging system of vehicle, can solve current electric car and charging pile
The poor problem of compatibility.It is described in detail separately below.
Fig. 1 is please referred to, Fig. 1 is the structural schematic diagram of the charging system of the first vehicle disclosed in the embodiment of the present application.
In the present embodiment, the charging system includes the first dc-battery 10, the second dc-battery 20 and switch conversion
Device 30.The switch changer-over device 30 includes first switching element 31, second switch element 32 and third switch element 33.Its
In, first switching element 31 is connected between the cathode of the first dc-battery 10 and the cathode of the second dc-battery 20, and second opens
It closes element 32 to be connected between the cathode of the first dc-battery 10 and the anode of the second dc-battery 20, third switch element 33 connects
It connects between the anode of the first dc-battery 10 and the anode of the second dc-battery 20.
Switch changer-over device 30 for changing the first dc-battery 10 and the second dc-battery 20 connection status, to adopt
It is charged with different charging equipment (not shown) to the charging system.Here charging equipment can be charging pile, main
Electric energy is provided for the first dc-battery 10 and the second dc-battery 20.
First voltage U is defined herein1When to prepare charging, the virtual voltage and the second direct current of the first dc-battery 10
Maximum value between the virtual voltage in pond 20.Second voltage U2For prepare charging when, the virtual voltage of the first dc-battery 10 with
The sum of the virtual voltage of second dc-battery 20.
Wherein, it is greater than or equal to the first voltage U the supply voltage of the charging equipment (being indicated with U)1And it is less than
Second voltage U2In the case where (that is, U1≤ U < U2), for example, the voltage rating of two dc-batteries is 400V, practical electricity
Pressure variation range is 250-450V, and when that need to charge, the virtual voltage of possible first dc-battery 10 is 250V, the second direct current
The virtual voltage in pond 10 is 280V, at this time U1=280V, U2The range of=530V, the supply voltage U of charging equipment in 280-530V
It is interior, the first dc-battery 10 and the second direct current can control by the conducting of first switching element 31 and third switch element 33 at this time
Battery 20 is in parallel, to realize that low pressure charges.It should be noted that when the first dc-battery 10 and the second dc-battery 20 are in parallel
When, second switch element 32 is in off state.At this point, can be by the anode of the anode and the first dc-battery 10 of charging equipment
Connection, the cathode of charging equipment are connect with the cathode of the second dc-battery 20, to realize the low pressure charging of charging system.
Wherein, it is greater than or equal to second voltage U in the supply voltage U of the charging equipment2In the case where, as described above,
For example, U2=530V, the supply voltage of charging equipment be greater than the first dc-battery 10 maximum allowable charging voltage (such as 450V),
Greater than the maximum allowable charging voltage (such as 450V) of the second dc-battery 20, cannot use charging setting directly to voltage rating for
The dc-battery of 400V charges.First dc-battery 10 is controlled by the conducting of the second switch element 32 at this time
It connects with the second dc-battery 20, to realize high-voltage charging.It should be noted that when needing the first dc-battery 10 and second
When dc-battery 20 is connected, only second switch element 32 is in the conductive state, first switching element 31 and third switch element 33
It is in off state.At this point, can connect the anode of charging equipment with the anode of the first dc-battery 10, charging equipment is born
Pole is connect with the cathode of the second dc-battery 20, to realize the high-voltage charging of charging system.
Preferably, it is needing under the first dc-battery 10 and the concatenated situation of the second dc-battery 20, charging equipment
Supply voltage U is preferably also less than tertiary voltage U3(tertiary voltage U3For the maximum allowable charging voltage and the of the first dc-battery 10
The sum of the maximum allowable charging voltage of two dc-batteries 20).For example, the first direct current for being 400V for above-mentioned voltage rating
Pond, the second dc-battery, maximum allowable charging voltage are 450V, at this time U3=900V.
It is further preferred that the voltage rating of first dc-battery 10 and the second dc-battery 20 is equal.Exist in this way
At the time of needing to charge, the virtual voltage of the two can be closer to.
It is apparent that the supply voltage U of charging equipment is big respectively no matter in the charging of above-mentioned low pressure or high-voltage charging
In the real-time voltage at 10 both ends of the first dc-battery and the real-time voltage of the second dc-battery 20.The supply voltage of charging pile can root
According to the voltage change of two dc-batteries.
It, can be according to the first dc-battery when charging and second dc-battery in the charging system of the vehicle of Fig. 1 description
Matching relationship between virtual voltage and the supply voltage U of charging equipment adjusts the first dc-battery 10 and the second dc-battery
Connection relationship between 20, to both can use low pressure charging equipment to Vehicular charging, moreover it is possible to be come using high-voltage charging equipment
Charging realizes that different charging equipments can be same Vehicular charging, improves universality, the commonality of charging equipment, reduce
The construction cost of vehicle special charging equipment.
Optionally, the first switching element 31, second switch element 32 and third switch element 33 are independently selected from MOS
(such as NMOS tube, PMOS tube), triode (such as NPN pipe, PNP pipe), insulated gate bipolar transistor and dynamic circuit connector type relay are managed, but
It is without being limited thereto.
For for the charging system of second of vehicle disclosed in Fig. 2, second switch element 32 and third switch element
33 can be NMOS tube, and first switching element 31 can be PMOS tube.Wherein, the source electrode of first switching element 31 connects the first direct current
The cathode of battery 10, the cathode of drain electrode the second dc-battery 20 of connection of first switching element 31, the leakage of second switch element 32
Pole connects the cathode of the first dc-battery 10, and the source electrode of second switch element 32 connects the anode of the second dc-battery 20, third
The anode of drain electrode the first dc-battery 10 of connection of switch element 33, the source electrode of third switch element 33 connect the second dc-battery
20 anode.And the grid of first switching element 31, second switch element 32 and third switch element 33 can be separately connected a control
Molding block, the exportable control voltage signal of the control module control their on or off to these three switch elements,
For example, the control module can export a high level to its grid and control voltage, when need when needing second switch element 32 to be connected
When second switch element 32 being wanted to end, a low level control voltage is exported to its grid；Such as need first switching element
When 31 conducting, which can export a low level control voltage to its grid.Alternatively it is also possible to by the crystal in Fig. 2
The type of pipe and the control signal of access are accordingly changed and (such as change PMOS tube, NPN pipe into), also can achieve the application implementation
The effect of example, herein with regard to no longer being repeated.
Referring to Fig. 3, Fig. 3 is the structural schematic diagram of the charging system of the third vehicle disclosed in the embodiment of the present application.Such as
Shown in Fig. 3, the charging system of vehicle shown in the present embodiment and overall architecture shown in FIG. 1 and group are integral identical, specifically ask
Referring to, to the description of Fig. 1, details are not described herein in above-described embodiment.
Further, difference is, further includes filling in the charging system of vehicle described in embodiment shown in Fig. 3
Electrical equalization circuit 40, the charging balanced circuit 40 be serially connected in first dc-battery 10 and second dc-battery 20 it
Between；The charging balanced circuit 40 is used for after the first switching element 31 conducting and the third switch element 33 conducting
Before, by the virtual voltage equilibrium of first dc-battery 10 and the second dc-battery 20 to equal.
Due to after charging complete the first dc-battery 10 and the second disappearing in the use process of vehicle of dc-battery 20
Consuming situation might not be identical, may cause the reality of the first dc-battery 10 and the second dc-battery 20 when charging again
Voltage is not identical.Therefore, in the case where needing first dc-battery 10 and the second 20 parallel connection of dc-battery, first first
First switching element 31 is connected, realizes the cathode voltage of the first dc-battery 10 and the cathode voltage phase of the second dc-battery 20
Deng；Charging balanced circuit 40 is set to start to work later, by the reality of first dc-battery 10 and the second dc-battery 20
Electric voltage equalization is to equal.It can avoid leading to wink because the two voltage does not wait after subsequent third switch element 33 is connected in this way
Between electric current is excessive, damages the two dc-batteries.
Optionally, the charging balanced circuit 40 includes first port 401, second port 402, third port 403 and the
Four ports 404；Wherein, first port 401 and third port 403 are connected respectively the positive and negative of the first dc-battery 10
Pole, second port 402 and the 4th port 404 are connected respectively the anode and cathode of the second dc-battery 20, first port 401
It is additionally provided with the first switching element 41 between the anode of the first dc-battery 10, second port 402 and the second dc-battery 20
The second switching element 42 is additionally provided between anode.Wherein, the first switching element 31 conducting after and the third switch
Before element 33 is connected, the charge balancing electricity is controlled by the conducting of first switching element 41 and the second switching element 42
Road work.
Similarly, the first switching element 41 and the second switching element 42 can also be independently selected from metal-oxide-semiconductor, triode, insulation
Grid bipolar junction transistor and dynamic circuit connector type relay etc., but not limited to this.
It, can be in the power supply electricity of charging equipment on the basis of Fig. 1 in the schematic diagram of the charging system of vehicle shown in Fig. 3
U is pressed to be greater than or equal to first voltage U1And it is less than second voltage U2In the case where, the first switching element 31 conducting after and
Before the third switch element 33 is connected, using charging balanced circuit 40 by first dc-battery 10 and the second direct current
The virtual voltage equilibrium in pond 20 is to equal, it is ensured that without moment when first dc-battery 10 and the second dc-battery 20 in parallel
High current generates, and safely realizes low pressure charging, solves the problems, such as that current electric car and charging equipment compatibility are poor.
In addition, the charging system in Fig. 3 may also comprise control module, which can control first switching element respectively
31, the on or off of second switch element 32 and third switch element 33, and pass through the first switching element 41 of control and the
The on or off of two switching elements 42 controls whether charging balanced circuit 40 works.The number of control module with no restrictions,
Can also have multiple with only one.
About a kind of optional specific embodiment of charging balanced circuit 40, Fig. 4 is seen, Fig. 4 is that the application is implemented
The structural schematic diagram of the charging system of another kind vehicle disclosed in example.In Fig. 4, the charging balanced circuit 40 include transformer T,
First inductance L1, first capacitor C1 and first switch tube S1, second switch S2, third switching tube S3, the 4th switching tube
S4, the 5th switching tube S5, the 6th switching tube S6, the 7th switching tube S7, the 8th switching tube S8, the transformer T include it is primary around
Group N1 and secondary windings N2.
Wherein, the drain electrode of first switch tube S1 and second switch S2 is respectively connected to one end of the first inductance L1, and first
The other end of inductance L1 is connected to first switching element 41, wherein the above-mentioned first port 401 referred to corresponds here to
The one end of first inductance L1 being connected with the first switching element 41.The drain electrode connection second switch S2's of third switching tube S3
Source electrode, the source electrode of the drain electrode connection first switch tube S1 of the 4th switching tube S4, the source electrode of first switch tube S1 are additionally coupled to primary
The first end of winding N1, the source electrode of second switch S2 are additionally coupled to the second end of armature winding N2, third switching tube S3 and
The source electrode of four switching tube S4 is respectively connected to the cathode of the first dc-battery 10, wherein the above-mentioned third port 403 referred to is at this
In can be equivalent to the source electrode of the 4th switching tube S4.
Similarly, the drain electrode of the 5th switching tube S5 and the 6th switching tube S6 is respectively connected to the second switching element 42；7th
The source electrode of the 6th switching tube S6 of drain electrode connection of switching tube S7, the source of the 5th switching tube S5 of drain electrode connection of the 8th switching tube S8
Pole, the source electrode of the 5th switching tube S5 are additionally coupled to the first end of secondary windings N2, and the source electrode of the 6th switching tube S6 is additionally coupled to secondary
The source electrode of the second end of grade winding N2, the 7th switching tube S7 and the 8th switching tube S8 are respectively connected to the negative of the second dc-battery 20
Pole；The first pole plate of first capacitor C1 connects the second switching element 42, and the second pole plate of first capacitor C1 connects the second direct current
The cathode (i.e. first capacitor C1 is connected in parallel between the second switching element 42 and the cathode of the second dc-battery 20) in pond 20, it is above-mentioned to mention
And second port 402 can be equivalent to the first pole of first capacitor C1 herein, the 4th port 404 can be equivalent to first herein
The second pole plate of capacitor C1.
Preferably, switching tube S1, S2, S3, S4 and switching tube S5, S6, S7, S8 are that lesser NMOS tube is lost.In addition, each
The source electrode and drain electrode two sides of switching tube can also be parallel with rectifier diode, play the role of reverse connecting protection (as shown in Figure 4).
Referring to Figure 4 together and Fig. 5, the two sides of transformer T all generate a square-wave voltage, wherein V1For at the beginning of transformer
The voltage waveform of grade winding terminal, V2Phase shifting angle for the voltage waveform of transformer secondary output winding terminal, between the voltage of two sidesIt can determine
Justice is phase difference of the transformer T two sides voltage waveform in midpoint.Use the phase shifting angle between the voltage of transformer two sidesControllably
System passes through Lr12The size of energy transmission, wherein Lr12For the sum of the leakage inductance of equivalent transformer T and external inductors, L is flowed throughr12's
Electric current is denoted as ir12。
Wherein, if the virtual voltage u of the first dc-battery 101Greater than the virtual voltage u of the second dc-battery 202, then
In one period, first switch tube S1 and third switching tube S3 are first connected, later (such as hysteretic angleCorresponding duration
5th switching tube S5 and the 7th switching tube S7 conducting afterwards), V1It is ahead of V2, power reaches secondary windings side (i.e. by armature winding side
By V1Side is sent to V2Side)；In second time period, second switch S2 and the 4th switching tube S4 are first connected, later (such as it is stagnant
Angle of phase displacement afterwardsAfter corresponding duration) the 6th switching tube S6 and the 8th switching tube S8 conducting, V1It is ahead of V2, power is by V1Side passes
It send to V2Side repeats the power transfer function in first time period and second time period, until the first dc-battery 10 and second
The virtual voltage equilibrium of dc-battery 20 is to equal.Wherein, the duration of the first time period is equal to second time period, in this way may be used
So that transformer realizes the magnetic balance under generating positive and negative voltage, otherwise can work because of transformer bias abnormal.It is right in Fig. 5
In from t0To t3Half period in, V1The switching tube turn-on time section of side is in t1-t2；For from t3To t6Other half week
Phase, V1The switching tube turn-on time section of side is in t4-t5。
Similarly, if the virtual voltage u of the first dc-battery 101Less than the virtual voltage u of the second dc-battery 202, then exist
In the third period, the 5th switching tube S5 and the 7th switching tube S7 are first connected, later (such as hysteretic angleCorresponding duration
First switch tube S1 and third switching tube S3 conducting afterwards), V1Lag behind V2, power reaches armature winding side (i.e. by secondary windings side
By V2Side is sent to V1Side)；Within the 4th period, the 6th switching tube S6 and the 8th switching tube S8 are first connected, later (such as it is stagnant
Angle of phase displacement afterwardsAfter corresponding duration) second switch S2 and the 4th switching tube S4 conducting, V1Lag behind V2, power is by V2Side passes
It send to V1Side, until the virtual voltage equilibrium of the first dc-battery 10 and the second dc-battery 20 is to equal.Wherein, the third
The duration of period was equal to for the 4th period, and transformer can be made to realize the magnetic balance under generating positive and negative voltage in this way, otherwise can be because
It works for transformer bias abnormal.
It is similar with Fig. 3, using the charging system of the 4th kind of vehicle shown in Fig. 4, it can also safely realize that low pressure charges,
High-voltage charging may be implemented again, solve the problems, such as that current electric car and charging equipment compatibility are poor.
Referring to Fig. 6, Fig. 6 is the structural schematic diagram of the charging system of the 5th kind of vehicle disclosed in the embodiment of the present application.Such as
Shown in Fig. 6, the charging system of vehicle shown in the present embodiment and overall architecture shown in FIG. 1 and group are integral identical, specifically ask
Referring to, to the description of Fig. 1, details are not described herein in above-described embodiment.
Further, difference is, charging system shown in fig. 6 further includes the first reverse connecting protection element D1, second anti-
Meet protection element D2 and third reverse connecting protection element D3.Wherein the first reverse connecting protection element D1 and the first switching element
31 is in parallel, and the second reverse connecting protection element D2 is in parallel with the second switch element 32, third reverse connecting protection element D3 and institute
It is in parallel to state third switch element 33.
Optionally, the first reverse connecting protection element D1, the second reverse connecting protection element D2 and third reverse connecting protection element D3 are
Diode.Specifically, in one embodiment (when the first, second, third switch element is as shown in Figure 2), the second reversal connection is protected
The anode of anode the second dc-battery 20 of connection of protection element D2, the cathode of the second reverse connecting protection element D2 connect the first direct current
The cathode in pond 10.The cathode of first reverse connecting protection element D1 connects the cathode of the second dc-battery 20, the first reverse connecting protection element
The cathode of anode the first dc-battery 10 of connection of D1.Anode the second dc-battery 20 of connection of third reverse connecting protection element D3
Anode, the cathode of third reverse connecting protection element D3 connect the anode of the first dc-battery 10.Here, the first reverse connecting protection element
The presence of D1, the second reverse connecting protection element D2 and third reverse connecting protection element D3, can prevent first dc-battery 10
The positive or negative pole of positive or negative pole and second dc-battery 20 is reversed, so that influencing the work of the charging system.
Further, the charging system further includes the first overflow protecting element 41, the second overflow protecting element 42 and
Three overflow protecting elements 43；First overflow protecting element 41 is connected with first switching element 31, the second overflow protecting element 42 with
Second switch element 32 is connected, and third overflow protecting element 43 is connected with third switch element 32.These overflow protecting elements can
With independently selected from resistance, can recovery-type fuse etc..
The embodiment of the present application also provides a kind of vehicle of charging system using above-mentioned Fig. 1 to vehicle shown in fig. 6.It can be with
It is charged using different charging equipments to the vehicle with the charging system, improves the universality of charging equipment, shares
Property, reduce the construction cost of vehicle special charging equipment.
The charging system and vehicle of vehicle provided by the embodiments of the present application are described in detail above, it is used herein
The principle and implementation of this application are described for specific case, and the above embodiments are only used to help understand
The present processes and its core concept but should not be understood as the limitation to the application.Meanwhile those of ordinary skill in the art
It can modify or replace in specific embodiments and applications according to the thought of the application, these modifications or substitutions
Also belong to scope of the present application.
Claims (16)
1. a kind of charging system of vehicle, which is characterized in that the charging system of the vehicle includes the first dc-battery, second straight
Galvanic battery and switch changer-over device, the switch changer-over device include first switching element, second switch element and third switch
Element；Wherein, the first switching element is connected to the cathode of first dc-battery and bearing for second dc-battery
Between pole, the second switch element is connected to the cathode of first dc-battery and the anode of second dc-battery
Between, the third switch element is connected between the anode of positive and described second dc-battery of first dc-battery；
It is charged using charging equipment to the charging system, anode and first dc-battery of the charging equipment
Anode connection, the cathode of the charging equipment are connect with the cathode of second dc-battery；
In the case where the supply voltage of the charging equipment is greater than or equal to first voltage and is less than second voltage, by described
The conducting of first switching element and third switch element controls first dc-battery and the second dc-battery is in parallel, to realize
Low pressure charging；
In the case where the supply voltage of the charging equipment is greater than or equal to the second voltage, pass through the second switch member
The conducting of part controls first dc-battery and the series connection of the second dc-battery, to realize high-voltage charging；Wherein, first electricity
Pressure is the maximum value between the virtual voltage of first dc-battery and the virtual voltage of second dc-battery, described the
Two voltages are the virtual voltage of first dc-battery and the sum of the virtual voltage of second dc-battery.
2. charging system according to claim 1, which is characterized in that the charging system further includes charging balanced circuit,
The charging balanced circuit is serially connected between first dc-battery and second dc-battery；The charging balanced circuit
For the first switching element conducting after and the third switching elements conductive before, will first dc-battery with
The virtual voltage equilibrium of second dc-battery is to equal.
3. charging system according to claim 2, which is characterized in that the charging balanced circuit includes first port,
Two-port netwerk, third port and the 4th port；Wherein, the first port and the third port are separately connected first direct current
The anode and cathode of battery, the second port and the 4th port are separately connected the positive and negative of second dc-battery
Pole, is additionally provided with the first switching element between the first port and the anode of first dc-battery, the second port with
The second switching element is additionally provided between the anode of second dc-battery；
After first switching element conducting and before the third switching elements conductive, pass through first switching element
Conducting with second switching element controls the charging balanced circuit work.
4. charging system according to claim 3, which is characterized in that the charging balanced circuit includes transformer, first
Inductance, first capacitor, first switch tube, second switch, third switching tube, the 4th switching tube, the 5th switching tube, the 6th switch
Pipe, the 7th switching tube and the 8th switching tube, the transformer include armature winding and secondary windings；
Wherein, the drain electrode of the first switch tube and the second switch is respectively connected to one end of first inductance, institute
The other end for stating the first inductance is connected to first switching element；The drain electrode of the third switching tube connects the second switch
The source electrode of pipe, the drain electrode of the 4th switching tube connect the source electrode of the first switch tube, and the source electrode of the first switch tube is also
It is connected to the first end of the armature winding, the source electrode of the second switch is additionally coupled to the second end of the armature winding,
The source electrode of the third switching tube and the 4th switching tube is respectively connected to the cathode of first dc-battery；
The drain electrode of 5th switching tube and the 6th switching tube is respectively connected to second switching element；Described 7th opens
The drain electrode for closing pipe connects the source electrode of the 6th switching tube, and the drain electrode of the 8th switching tube connects the source of the 5th switching tube
Pole, the source electrode of the 5th switching tube are additionally coupled to the first end of the secondary windings, and the source electrode of the 6th switching tube also connects
It is connected to the second end of the secondary windings, the source electrode of the 7th switching tube and the 8th switching tube is respectively connected to described
The cathode of two dc-batteries；The first capacitor be connected in parallel on second switching element and second dc-battery cathode it
Between.
5. charging system according to claim 4, which is characterized in that if the virtual voltage of first dc-battery is greater than
The virtual voltage of second dc-battery, then in first time period, the first switch tube and the third switching tube are first
Conducting, the 5th switching tube and the 7th switching tube conducting later, in second time period, the second switch and institute
State the 4th switching tube to be first connected, later the 6th switching tube and the 8th switching tube conducting, in the first time period and
Realize that the first power transfer function, the first power transfer function are used for power by the primary in the second time period
Winding side reaches the secondary windings side, and first power repeated in the first time period and the second time period passes
Function is passed, until the virtual voltage equilibrium of first dc-battery and second dc-battery is to equal；
If the virtual voltage of first dc-battery is less than the virtual voltage of second dc-battery, in the third period
Interior, the 5th switching tube and the 7th switching tube are first connected, and the first switch tube and the third switching tube are led later
It is logical；Within the 4th period, the 6th switching tube and the 8th switching tube are first connected, later the second switch and institute
The conducting of the 4th switching tube is stated, realizes the second power transfer function within the third period and the 4th period, it is described
Second power transfer function is used to power reaching the armature winding side by the secondary windings side, repeats the third time
The second power transfer function in section and the 4th period, until first dc-battery and second direct current
The virtual voltage equilibrium of battery is to equal.
6. charging system according to claim 5, which is characterized in that the first time period and the second time period
Duration is equal；The third period is equal with the duration of the 4th period.
7. charging system according to claim 4, which is characterized in that the first switch tube, the second switch, institute
State third switching tube, the 4th switching tube, the 5th switching tube, the 6th switching tube, the 7th switching tube and institute
It states and is also parallel with rectifier diode between the source electrode and drain electrode of the 8th switching tube.
8. according to the described in any item charging systems of claim 2-7, which is characterized in that the charging system further includes control mould
Block, the control module are electrically connected with the switch changer-over device and the charging balanced circuit respectively, for controlling described
The on or off of one switch element, the second switch element and the third switch element, and for controlling described fill
Electrical equalization circuit works or does not work.
9. charging system according to claim 1-7, which is characterized in that first dc-battery and described
The voltage rating of two dc-batteries is equal.
10. charging system according to claim 1-7, which is characterized in that the charging system further includes first
Reverse connecting protection element, the second reverse connecting protection element and third reverse connecting protection element；The first reverse connecting protection element and described the
One switch element is in parallel, the second reverse connecting protection element and the second switch element in parallel, the third reverse connecting protection member
Part is in parallel with the third switch element.
11. charging system according to claim 1-7, which is characterized in that the first switching element, described
Two switch elements and the third switch element respectively include metal-oxide-semiconductor, triode, insulated gate bipolar transistor and dynamic circuit connector type after
One of electric appliance is a variety of.
12. charging system according to claim 1-7, which is characterized in that the charging system further includes first
Overflow protecting element, the second overflow protecting element and third overflow protecting element；First overflow protecting element and described the
The series connection of one switch element, second overflow protecting element are connected with the second switch element, the third overcurrent protection member
Part is connected with the third switch element.
13. a kind of vehicle, which is characterized in that including charging system, the charging system includes the first dc-battery, the second direct current
Battery and switch changer-over device, the switch changer-over device include first switching element, second switch element and third switch member
Part；Wherein, the first switching element is connected to the cathode of first dc-battery and the cathode of second dc-battery
Between, the second switch element is connected to the cathode of first dc-battery and the anode of second dc-battery
Between, the third switch element is connected between the anode of positive and described second dc-battery of first dc-battery；
It is charged using charging equipment to the charging system, anode and first dc-battery of the charging equipment
Anode connection, the cathode of the charging equipment are connect with the cathode of second dc-battery；
In the case where the supply voltage of the charging equipment is greater than or equal to first voltage and is less than second voltage, by described
The conducting of first switching element and third switch element controls first dc-battery and the second dc-battery is in parallel, to realize
Low pressure charging；
In the case where the supply voltage of the charging equipment is greater than or equal to the second voltage, pass through the second switch member
The conducting of part controls first dc-battery and the series connection of the second dc-battery, to realize high-voltage charging；Wherein, first electricity
Pressure is the maximum value between the virtual voltage of first dc-battery and the virtual voltage of second dc-battery, described the
Two voltages are the virtual voltage of first dc-battery and the sum of the virtual voltage of second dc-battery.
14. vehicle according to claim 13, which is characterized in that the charging system further includes charging balanced circuit, institute
Charging balanced circuit is stated to be serially connected between first dc-battery and second dc-battery；The charging balanced circuit is used
In the first switching element conducting after and the third switching elements conductive before, by first dc-battery and institute
The virtual voltage equilibrium of the second dc-battery is stated to equal.
15. vehicle according to claim 14, which is characterized in that the charging balanced circuit includes first port, second
Port, third port and the 4th port；Wherein, the first port and the third port are separately connected first direct current
The anode and cathode in pond, the second port and the 4th port are separately connected the positive and negative of second dc-battery
Pole, is additionally provided with the first switching element between the first port and the anode of first dc-battery, the second port with
The second switching element is additionally provided between the anode of second dc-battery；
After first switching element conducting and before the third switching elements conductive, pass through first switching element
Conducting with second switching element controls the charging balanced circuit work.
16. vehicle according to claim 15, which is characterized in that the charging balanced circuit includes transformer, the first electricity
Sense, first capacitor, first switch tube, second switch, third switching tube, the 4th switching tube, the 5th switching tube, the 6th switch
Pipe, the 7th switching tube and the 8th switching tube, the transformer include armature winding and secondary windings；
Wherein, the drain electrode of the first switch tube and the second switch is respectively connected to one end of first inductance, institute
The other end for stating the first inductance is connected to first switching element；The drain electrode of the third switching tube connects the second switch
The source electrode of pipe, the drain electrode of the 4th switching tube connect the source electrode of the first switch tube, and the source electrode of the first switch tube is also
It is connected to the first end of the armature winding, the source electrode of the second switch is additionally coupled to the second end of the armature winding,
The source electrode of the third switching tube and the 4th switching tube is respectively connected to the cathode of first dc-battery；
The drain electrode of 5th switching tube and the 6th switching tube is respectively connected to second switching element；Described 7th opens
The drain electrode for closing pipe connects the source electrode of the 6th switching tube, and the drain electrode of the 8th switching tube connects the source of the 5th switching tube
Pole, the source electrode of the 5th switching tube are additionally coupled to the first end of the secondary windings, and the source electrode of the 6th switching tube also connects
It is connected to the second end of the secondary windings, the source electrode of the 7th switching tube and the 8th switching tube is respectively connected to described
The cathode of two dc-batteries；The first capacitor be connected in parallel on second switching element and second dc-battery cathode it
Between.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2018/109111 WO2020062248A1 (en) | 2018-09-30 | 2018-09-30 | Vehicle charging system and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110352543A true CN110352543A (en) | 2019-10-18 |
| CN110352543B CN110352543B (en) | 2022-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880006893.7A Active CN110352543B (en) | 2018-09-30 | 2018-09-30 | Charging system of vehicle and vehicle |
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| Country | Link |
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| WO (1) | WO2020062248A1 (en) |
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| CN110867918A (en) * | 2019-11-15 | 2020-03-06 | 瑞浦能源有限公司 | Battery control circuit suitable for two charging voltages and control method thereof |
| CN114030368A (en) * | 2021-12-16 | 2022-02-11 | 深圳威迈斯新能源股份有限公司 | Electric automobile quick charging system and control method thereof |
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| CN114336854B (en) * | 2021-12-30 | 2024-03-22 | 臻驱科技（上海）有限公司 | Protection system and method for high-voltage direct-current charging of electric automobile |
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| CN108110335A (en) * | 2017-11-16 | 2018-06-01 | 国机智骏（北京）汽车科技有限公司 | The control method of the battery system of electric vehicle, electric vehicle and battery system |
| CN209037399U (en) * | 2018-09-30 | 2019-06-28 | 深圳欣锐科技股份有限公司 | A kind of charging system and vehicle of vehicle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110867918A (en) * | 2019-11-15 | 2020-03-06 | 瑞浦能源有限公司 | Battery control circuit suitable for two charging voltages and control method thereof |
| CN114030368A (en) * | 2021-12-16 | 2022-02-11 | 深圳威迈斯新能源股份有限公司 | Electric automobile quick charging system and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020062248A1 (en) | 2020-04-02 |
| CN110352543B (en) | 2022-11-15 |
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