CN110165749A - Electric car, Vehicular charger circuit, battery circuit and charge/discharge control method - Google Patents
Electric car, Vehicular charger circuit, battery circuit and charge/discharge control method Download PDFInfo
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- CN110165749A CN110165749A CN201910536000.6A CN201910536000A CN110165749A CN 110165749 A CN110165749 A CN 110165749A CN 201910536000 A CN201910536000 A CN 201910536000A CN 110165749 A CN110165749 A CN 110165749A
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- side winding
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000004804 winding Methods 0.000 claims abstract description 134
- 230000005611 electricity Effects 0.000 claims description 19
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 2
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 description 1
- 241000208340 Araliaceae Species 0.000 description 1
- 241001347978 Major minor Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
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Classifications
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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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
-
- H02J7/022—
-
- 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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention relates to vehicle technology field, a kind of electric car, Vehicular charger circuit, battery circuit and charge/discharge control method are provided.Vehicular charger circuit includes: concatenated prime AC/DC circuit and rear class DC/DC circuit, and rear class DC/DC circuit includes a pair of of primary side winding and a vice-side winding, and vice-side winding concatenates third branch；First I/O interface is connected to rear class DC/DC circuit by the first branch, to be connected to prime AC/DC circuit through primary side winding or be connected to third branch through vice-side winding；2nd I/O interface is connected between prime AC/DC circuit and rear class DC/DC circuit by second branch, to be connected to prime AC/DC circuit or the first branch through primary side winding or be connected to third branch through vice-side winding.It is connected between front stage circuit by the 2nd I/O interface, realizes the multiplexing of a pair of of primary side winding；By increasing vice-side winding, realizes the multiplexing of a primary side winding and integrating for vice-side winding, so that Vehicular charger circuit is suitable for the charging of battery pack, high-low pressure driving and parallel drive, save cost and volume.
Description
Technical field
The present invention relates to electric vehicle engineering fields, specifically, be related to a kind of electric car, Vehicular charger circuit,
Battery circuit and charge/discharge control method.
Background technique
Currently, it improves course continuation mileage and saves acquisition cost, be the two big main problems that electric car faces, the two are asked
Topic also constitutes conflict.For the course continuation mileage for increasing electric car, need to increase battery capacity.But battery capacity improves same
When cost can be brought to improve, and can not be also continuously increased in the limited space of electric car battery configuration.
Based on this, the scheme that main packet and secondary packet are applied in combination is developed in the prior art, main packet is in electric car factory
Original-pack configuration, the rental when electric car needs to improve course continuation mileage of pair packet.The acquisition cost of electric car had both been reduced in this way,
It is able to achieve the raising of course continuation mileage again, has taken into account the economy and dynamic property of electric car.
Shown in referring to Fig.1, for the schematic diagram of main packet and secondary packet parallel configuration in the prior art.Pair packet 12 ' passes through high pressure DC/
The main packet 11 ' of the access in parallel of DC module 13 ', the high voltage electric device power supply on vehicle.Pair packet 12 ' and main packet 11 ' can also pass through low pressure
Low-voltage electrical appliance power supply of the DC/DC module 14 ' on vehicle, or charged by OBC module 15 '.
Each electronic device is mutually indepedent in the program, and needs to increase additional DC/DC module and cooling circuit, causes
Battery pack volume and cost increase, and arrange that the effective volume of battery core is reduced, to limit the popularization and use of the program.
It should be noted that the information in above-mentioned background technology part application is only used for reinforcing the reason to background of the invention
Solution, therefore may include the information not constituted to the prior art known to persons of ordinary skill in the art.
Summary of the invention
In view of this, the present invention provides a kind of electric car, Vehicular charger circuit, battery circuit and charge and discharge control side
Method, the Vehicular charger circuit can be used in the charging of major-minor battery pack, high-low pressure driving and parallel drive, and save cost and
Volume.
According to an aspect of the present invention, a kind of Vehicular charger circuit is provided, comprising: concatenated prime AC/DC circuit
With rear class DC/DC circuit, the rear class DC/DC circuit includes a pair of of primary side winding and a vice-side winding, the vice-side winding string
Connect a third branch；First I/O interface is connected to the rear class DC/DC circuit, the first I/O interface energy by the first branch
The prime AC/DC circuit is connected to through the primary side winding or is connected to the third branch through the vice-side winding；2nd I/O
Interface is connected between the prime AC/DC circuit and the rear class DC/DC circuit by second branch, the 2nd I/O interface
The prime AC/DC circuit or the first branch can be connected to through the primary side winding or through described in vice-side winding connection
Third branch.
Preferably, above-mentioned Vehicular charger circuit further include: power interface is connected to the prime AC/DC circuit, described
Power interface can be connected to the first I/O interface and/or the 2nd I/O interface through the primary side winding, or through the secondary side
Winding is connected to the third branch.
Preferably, in above-mentioned Vehicular charger circuit, the prime AC/DC circuit includes: rectification circuit, described in connection
Power interface；And power factor correction circuit, concatenate the rectification circuit and the rear class DC/DC circuit.
Preferably, in above-mentioned Vehicular charger circuit, when the rear class DC/DC circuit is connected, the vice-side winding is produced
Raw induced electromotive force is less than the induced electromotive force that the primary side winding generates.
Preferably, in above-mentioned Vehicular charger circuit, each branch is equipped with switch member, and the switch member includes one or more
A switch element, the switch element are selected from relay, contactor, electronic switch or air switch.
According to another aspect of the present invention, a kind of battery circuit is provided, the battery circuit includes above-mentioned vehicle-mounted fills
Motor circuit, and: the first battery pack is connected to the first I/O interface, and first battery pack can be successively through the prime
AC/DC circuit, the primary side winding connect its charging path with the first branch, or successively defeated through the first branch and one
Out branch connects its first driving access, or successively connects through the first branch, the vice-side winding with the third branch
Its second driving access；Second battery pack, is connected to the 2nd I/O interface, and second battery pack can be successively through the prime
AC/DC circuit, the primary side winding connect its charging path with the second branch, or successively through the second branch, described
Primary side winding, the first branch and the output branch connect its first driving access, or successively through the second branch, institute
It states vice-side winding and connects its second driving access with the third branch.
Preferably, in above-mentioned battery circuit, first battery pack is fixed, and second battery pack is detachable.
According to another aspect of the present invention, a kind of charge control method is provided, for controlling above-mentioned battery circuit
Charging, comprising: according to the first charging signals, connect the charging path of first battery pack, make first battery pack through it
Charging path charging；According to the second charging signals, the charging path of second battery pack is connected, passes through second battery pack
The charging of its charging path.
According to another aspect of the present invention, a kind of discharge control method is provided, for controlling above-mentioned battery circuit
Electric discharge, comprising: according to the first driving signal, connect the first driving access of first battery pack, make first battery pack
Through its first driving access driving first kind load；And/or the second driving access of first battery pack is connected, make described the
One battery pack drives the load of the second class through its second driving access；According to the second driving signal, second battery pack is connected
First driving access makes second battery pack through its first driving access driving first kind load；And/or connect described second
Second driving access of battery pack makes second battery pack drive the load of the second class through its second driving access；According to parallel connection
Driving signal connects the first driving access of first battery pack and the first driving access of second battery pack, makes institute
It states the first battery pack and second battery pack and drives the first kind negative through the first branch and the output branch circuit parallel connection
It carries.
According to another aspect of the present invention, a kind of electric car is provided, the electric car is configured with above-mentioned battery
Circuit.
The beneficial effect of the present invention compared with prior art is:
It is connected between prime AC/DC circuit and rear class DC/DC circuit by the 2nd I/O interface, realizes a pair of of primary side winding
Multiplexing；DC/DC circuit where a pair of of primary side winding can be respectively used to conversion prime AC/DC circuit and the first I/O interface it
Between, between prime AC/DC circuit and the 2nd I/O interface and the voltage between the 2nd I/O interface and the first branch；
By increasing vice-side winding, the multiplexing of a primary side winding and integrating for vice-side winding are realized；Vice-side winding and an electricity
DC/DC circuit where source primary side winding can be respectively used between the first I/O interface of conversion and third branch, the 2nd I/O connects
Mouthful and third branch between and the voltage between power interface and third branch；
To which Vehicular charger circuit of the invention can be suitably used for the first battery pack and the second battery pack passes through primary side winding
Charging or driving high power load, by vice-side winding drive low-power load and the second battery pack by primary side winding with
The several scenes such as the first battery pack parallel drive high power load, circuit arrangement is flexible, saves cost and volume.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
It can the limitation present invention.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention
Example, and be used to explain the principle of the present invention together with specification.It should be evident that the accompanying drawings in the following description is only the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 shows the schematic diagram of main packet and secondary packet parallel configuration in the prior art；
Fig. 2 and Fig. 3 shows the schematic diagram of two kinds of Vehicular charger circuits in the embodiment of the present invention；
Fig. 4 and Fig. 5 shows the schematic diagram of two kinds of battery circuits in the embodiment of the present invention；
Fig. 6~Figure 11 shows schematic diagram of the battery circuit under various working conditions in the embodiment of the present invention；
Figure 12 shows a kind of schematic diagram of the charge control method of battery circuit in the embodiment of the present invention；
Figure 13 shows a kind of schematic diagram of the discharge control method of battery circuit in the embodiment of the present invention.
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein.On the contrary, thesing embodiments are provided so that the present invention will
Fully and completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.It is identical attached in figure
Icon note indicates same or similar structure, thus will omit repetition thereof.
Vehicular charger (On-Board Charger, abbreviation OBC) circuit configuration of the invention is in electric car.Fig. 2 and
The schematic diagram of two kinds of Vehicular charger circuits in embodiment is shown respectively in Fig. 3, referring to shown in Fig. 2 and Fig. 3, in some embodiments
In, Vehicular charger circuit of the invention includes:
Concatenated prime AC/DC circuit 2 and rear class DC/DC circuit 3, rear class DC/DC circuit 3 include a pair of of primary side winding
L1, L2 and a vice-side winding L3, vice-side winding L3 concatenate a third branch P3.Wherein, primary side winding L1 is as source side primary side
Winding, primary side winding L2 is as load-side primary side winding.Primary side winding L1 and primary side winding L2 can form one group of high pressure DC/DC electricity
Road, the powerful DC voltage conversion suitable for electric car；Primary side winding L1 and vice-side winding L3 can form one group of low pressure
DC/DC circuit, the DC voltage suitable for electric car middle low power are converted.That is, when rear class DC/DC circuit 3 is connected, secondary side
The induced electromotive force that winding L3 is generated is less than the induced electromotive force that primary side winding L2 is generated, and makes to circulate in high pressure DC/DC circuit
Voltage is greater than the voltage to circulate in low voltage DC/DC circuit, so that high pressure DC/DC circuit is used to drive the high-power negative of electric car
It carries, low voltage DC/DC circuit is used to drive the low-power load of electric car.High pressure DC/DC circuit and low voltage DC/DC circuit also wrap
Other circuit elements for realizing voltage conversion function are included, does not indicate or is painted in detail in figure.
First I/O interface 41 is connected to rear class DC/DC circuit 3 by first branch P1, and the first I/O interface 41 can be through primary side
Winding L1 is connected to prime AC/DC circuit 2 with L2 or is connected to third branch P3 through vice-side winding L3.When the first I/O interface 41 is through original
When side winding L1 is connected to prime AC/DC circuit 2 with L2, alternating voltage is after prime AC/DC circuit 2 is converted to DC voltage, again
The high pressure DC/DC circuit of included primary side winding L1 and L2 is further processed, and stable high power DC voltage is formed, through first
Branch P1 is delivered to the first I/O interface 41.When the first I/O interface 41 is connected to third branch P3 through vice-side winding L3, voltage warp
Stable small power DC voltage is formed after low voltage DC comprising primary side winding L1 and vice-side winding L3/DC processing of circuit, through
Three branch P3 are delivered to connected load, such as small storage battery, not specifically illustrated in figure.
2nd I/O interface 42 is connected between prime AC/DC circuit 2 and rear class DC/DC circuit 3 by second branch P2, the
Two I/O interfaces 42 can be connected to prime AC/DC circuit 2 or first branch P1 with L2 through primary side winding L1 or connect through vice-side winding L3
Logical third branch P3.When the 2nd I/O interface 42 is connected to prime AC/DC circuit 2 with L2 through primary side winding L1, alternating voltage is premenstrual
After grade AC/DC circuit 2 is converted to DC voltage, and the high pressure DC/DC circuit of included primary side winding L1 and L2 is further processed,
Stable high power DC voltage is formed, is delivered to the 2nd I/O interface 42 through second branch P2.When the 2nd I/O interface 42 is through original
When side winding L1 is connected to first branch P1 with L2, the voltage provided from the 2nd I/O interface 42 can included primary side winding L1 and L2
High pressure DC/DC processing of circuit after, through first branch P1 realize with the voltage parallel provided from the first I/O interface 41, realize big
Power voltage output.High pressure DC/DC circuit comprising primary side winding L1 and L2 plays adjusting and control to high-power voltage in parallel
The effect of system.When the 2nd I/O interface 42 is connected to third branch P3 through vice-side winding L3, the included primary side winding L1 of voltage and pair
Stable small power DC voltage is formed after the low voltage DC of side winding L3/DC processing of circuit, is delivered to through third branch P3 connected
Load.
Above-mentioned Vehicular charger circuit is connected to 2 He of prime AC/DC circuit through second branch P2 by the 2nd I/O interface 42
Between rear class DC/DC circuit 3, the multiplexing of a pair of of primary side winding L1 and L2 are realized；Rear class DC/DC i.e. by borrowing OBC circuit
Circuit 3 realizes OBC circuit and the same circuit of high pressure DC/DC circuit multiplexer.High pressure DC/DC electricity where primary side winding L1 and L2
Road can be respectively used between conversion prime AC/DC circuit 2 and the first I/O interface 41, prime AC/DC circuit 2 and the 2nd I/O interface
Voltage between 42 and between the 2nd I/O interface 42 and first branch P1.By increasing vice-side winding L3, source side is realized
The multiplexing of primary side winding L1 and integrating for vice-side winding L3, realization low voltage DC/DC circuit and OBC circuit are closely integrated.Secondary side
Low voltage DC/DC circuit where winding L3 and source side primary side winding L1 can be respectively used to the first I/O interface 41 of conversion and third
Voltage between branch P3 and between the 2nd I/O interface 42 and third branch P3.To above-mentioned Vehicular charger circuit
In, same set of heat management system can be used in OBC circuit, high pressure DC/DC circuit and low voltage DC/DC circuit, can be suitably used for connecting
In the first I/O interface 41 the first battery pack and be connected to the second battery pack of the 2nd I/O interface 42 by primary side winding L1 and
L2 charging or driving high power load, by vice-side winding L3 drive low-power load and the second battery pack by primary side around
The group several scenes such as L1 and L2 and the first battery pack parallel drive high power load, save DC/DC exemplar cost and volume occupies,
Make that circuit arrangement is more flexible and convenient, cost performance is high.
Further, above-mentioned Vehicular charger circuit further include:
Power interface 43, is connected to prime AC/DC circuit 2, and power interface 43 can be connected to the first I/O with L2 through primary side winding L1
Interface 41 and/or the 2nd I/O interface 42, or third branch P3 is connected to through vice-side winding L3.Power interface 43 is for connecting outside vehicle
Exchange (AC) power supply, when power interface 43 is connected to the first I/O interface 41 with L2 through primary side winding L1, alternating current connects from power supply
Mouthfuls 43 are delivered to Vehicular charger circuit, after prime AC/DC circuit 2 is converted to direct current, and included primary side winding L1 and
The high pressure DC/DC circuit of L2 is further processed, and is formed stable high power DC electricity, is delivered to the first I/O through first branch P1
Interface 41.When power interface 43 is connected to the 2nd I/O interface 42 with L2 through primary side winding L1, alternating current is conveyed from power interface 43
To Vehicular charger circuit, after prime AC/DC circuit 2 is converted to direct current, and the high pressure of included primary side winding L1 and L2
DC/DC circuit is further processed, and is formed stable high power DC electricity, is delivered to the 2nd I/O interface 42 through second branch P2.When
When power interface 43 is connected to third branch P3 through vice-side winding L3, alternating current is delivered to vehicle-mounted charge electromechanics from power interface 43
Road, after prime AC/DC circuit 2 is converted to direct current, and the low voltage DC of included primary side winding L1 and vice-side winding L3/DC electricity
Road is further processed, and is formed stable small power DC electricity, is delivered to connected load through third branch P3.
Prime AC/DC circuit 2 includes: rectification circuit 21, is connected to power interface 43；And power factor correction circuit 22,
Concatenate rectification circuit 21 and rear class DC/DC circuit 3.Rectification circuit 21 is used to carry out the alternating current accessed from power interface 43 whole
Stream forms direct current, and power factor correction circuit (Power Factor Correction, abbreviation PFC) 22 is used for corrected power
Factor.When the alternating current that power interface 43 accesses is single-phase electricity, rectification circuit 21 can be whole using single-phase bridge shown in Fig. 2
Current circuit；When the alternating current that power interface 43 accesses is three-phase electricity, rectification circuit 21 can use three-phase bridge shown in Fig. 3
Rectification circuit, but not limited to this.
Further, in above-mentioned Vehicular charger circuit, each branch, such as first branch P1, second branch P2, third branch
Road P3 is equipped with switch member (not specifically illustrated in figure), and switch member includes one or more switch elements, switch element be selected from after
Electric appliance, contactor, electronic switch, air switch or other any switch elements that can control connecting and disconnecting of the circuit.
Illustrate the battery electricity using Vehicular charger circuit described in above-mentioned any embodiment below with reference to Fig. 4~Figure 11
Road.Referring to shown in 4 and Fig. 5, battery circuit includes:
First battery pack 51, is connected to the first I/O interface 41, and the first battery pack 51 can be successively through prime AC/DC circuit 2, original
Side winding L1 connects its charging path with L2 with first branch P1, or successively through the output branch of first branch P1 and one connect its
One driving access, or its second driving access is successively connected with third branch P3 through first branch P1, vice-side winding L3.
Second battery pack 52, is connected to the 2nd I/O interface 42, and the second battery pack 52 can be successively through prime AC/DC circuit 2, original
Side winding L1 connects its charging path with L2 with second branch P2, or successively through second branch P2, primary side winding L1 and L2, first
Branch P1 connects its first driving access with output branch, or successively through second branch P2, vice-side winding L3 and third branch P3
Connect its second driving access.Wherein, the first battery pack 51 is fixed on electric car, the original-pack configuration battery as electric car
Packet, the second battery pack 52 is detachable, uses when improving course continuation mileage for electric car.
By taking battery circuit shown in Fig. 4 as an example, the charging path of the first battery pack 51 is referring to shown in arrow in Fig. 6, from electricity
Source interface 43 rises, and flows through the rectification circuit 21 and power factor correction circuit 22 and rear class DC/DC circuit of prime AC/DC circuit 2
The high pressure DC/DC circuit and first branch P1 and the first I/O interface 41 that 3 primary side winding L1 and L2 is formed, form from power supply
The charging path of 43 to the first battery pack 51 of interface.First driving access of the first battery pack 51 is referring to shown in arrow in Fig. 7, certainly
First battery pack 51 rises, and through the output branch (not shown) of first branch P1 and one, flows to high power load and (does not show in figure
Out), the first driving access from the first battery pack 51 to high power load is formed.Second driving access ginseng of the first battery pack 51
According to shown in arrow in Fig. 8, from the first battery pack 51, flows through first branch P1 and primary side winding L1 and vice-side winding L3 formed
Low-voltage DC/DC circuit and third branch P3 are formed from the first battery pack 51 to the second of low-power load (not shown)
Drive access.
The charging path of second battery pack 52 from power interface 43, flows through prime AC/DC referring to shown in arrow in Fig. 9
What the rectification circuit 21 and power factor correction circuit 22 of circuit 2 and the primary side winding L1 and L2 of rear class DC/DC circuit 3 were formed
High pressure DC/DC circuit and second branch P2 and the 2nd I/O interface 42 are formed from 43 to the second battery pack 52 of power interface
Charging path.First driving access of the second battery pack 52 is referring to Fig.1 in 0 shown in arrow, from the second battery pack 52, through second
The high pressure DC/DC circuit and first branch P1 and output branch that branch P2 and primary side winding L1 and L2 are formed (do not show in figure
High power load is flowed to out), forms the first driving access from the second battery pack 52 to high power load.When the first battery pack 51
The first driving access and the second battery pack 52 the second driving access when being also turned on, can be in conjunction with Fig. 7 and Figure 10, the second electricity
Pond packet 52 accesses the output branch of the first battery pack 51 by the high pressure DC/DC circuit in parallel that primary side winding L1 and L2 are formed, real
Existing 51 parallel drive high power load of second battery pack 52 and the first battery pack.Second driving access reference of the second battery pack 52
In Figure 11 shown in arrow, from the second battery pack 52, flow through what second branch P2 and primary side winding L1 and vice-side winding L3 were formed
Low-voltage DC/DC circuit and third branch P3 are formed from the second battery pack 52 to the second of low-power load (not shown)
Drive access.
The charge control method of above-mentioned battery circuit is referring to Fig.1 shown in 2, comprising:
S30, according to the first charging signals, connect the charging path of the first battery pack, keep the first battery pack logical through its charging
Road charging.As shown in connection with fig. 6, under the driving of the first charging signals, the charging path of the first battery pack 51 is connected, by AC power supplies
Power supply is charged by Vehicular charger to the first battery pack 51, the prime AC/DC electricity that the first battery pack 51 passes through Vehicular charger
Road 2 and rear class DC/DC circuit 3 carry out high power DC charging.Direct current is formed after the rectified circuit 21 of AC power supplies, then through PFC
22 correcting power factors of circuit；And the high pressure DC/DC circuit formed by a pair of primary side winding L1 and L2, to the first battery pack 51
It charges, charging modes can be constant-current charge, constant-voltage charge or invariable power charging.Wherein, the first charging signals are by electronic
The battery management system (BMS) of automobile is initiated, the heat management of the first battery pack 51 in specific charging process and charging process
Etc. functions also realized by BMS, the present invention it is without limitation.
S40, according to the second charging signals, connect the charging path of the second battery pack, keep the second battery pack logical through its charging
Road charging.As shown in connection with fig. 9, under the driving of the second charging signals, the charging path of the second battery pack 52 is connected, by AC power supplies
Power supply is charged by Vehicular charger to the second battery pack 52, the prime AC/DC electricity that the second battery pack 52 passes through Vehicular charger
Road 2 and rear class DC/DC circuit 3 carry out high power DC charging.Direct current is formed after the rectified circuit 21 of AC power supplies, then through PFC
22 correcting power factors of circuit；And the high pressure DC/DC circuit formed by a pair of primary side winding L1 and L2, to the second battery pack 52
It charges, charging modes can be constant-current charge, constant-voltage charge or invariable power charging.Wherein, the second charging signals are by electronic
The battery management system (BMS) of automobile is initiated, the heat management of the second battery pack 52 in specific charging process and charging process
Etc. functions also realized by BMS, the present invention it is without limitation.
The discharge control method of above-mentioned battery circuit is referring to Fig.1 shown in 3, comprising:
S60, according to the first driving signal, connect the first driving access of the first battery pack 51, pass through the first battery pack 51
Its first driving access driving first kind load；And/or the second driving access of the first battery pack 51 is connected, make the first battery pack
51 drive the load of the second class through its second driving access.The first driving signal can further be subdivided into high-power driving signal herein
It with small-power driving signal, is specifically realized by the BMS module of electric car, the present invention is without limitation.As shown in connection with fig. 7,
Under the driving of the first driving signal, when the first driving access of the first battery pack 51 is connected, the first battery pack 51 is through first
Road P1 and output Zhi Luxiang high power load provide driving voltage.High power load is the high voltage electric device in electric car, example
Such as motor, controller, inverter.As shown in connection with fig. 8, under the driving of the first driving signal, when the first battery pack 51
Second driving access is connected, the low pressure that the first battery pack 51 is formed through first branch P1 and primary side winding L1 and vice-side winding L3
DCDC circuit, the low-power load into third branch P3 provide driving voltage.Low-power load is the low pressure in electric car
Electrical appliance, such as the small storage battery of 12V.
S70, according to the second driving signal, connect the first driving access of the second battery pack 52, pass through the second battery pack 52
Its first driving access driving first kind load；And/or the second driving access of the second battery pack 52 is connected, make the second battery pack
52 drive the load of the second class through its second driving access.The second driving signal can further be subdivided into high-power driving signal herein
It with small-power driving signal, is specifically realized by the control module of electric car, the present invention is without limitation.In conjunction with Figure 10 institute
Show, under the driving of the second driving signal, when the first driving access of the second battery pack 52 is connected, the second battery pack 52 is through second
The high pressure DC/DC circuit and first branch P1 and output Zhi Luxiang that branch P2 and primary side winding L1 and L2 are formed are high-power negative
It carries and driving voltage is provided.In conjunction with shown in Figure 11, under the driving of the second driving signal, when the second driving of the second battery pack 52 is logical
Road is connected, the low-voltage DC/DC circuit that the second battery pack 52 is formed through second branch P2 and primary side winding L1 and vice-side winding L3, to
Low-power load in third branch P3 provides driving voltage.
S80, according to parallel drive signal, connect the first battery pack 51 the first driving access and the second battery pack 52 the
One driving access keeps the first battery pack 51 and the second battery pack 52 negative through first branch P1 and the output branch circuit parallel connection driving first kind
It carries.According to bearing power size, 51 output power of the first battery pack can be operated alone by the first driving signal, can also lead to
It crosses the second driving signal and 52 packet output power of the second battery pack is operated alone, the first electricity can also be driven by parallel drive signal
Pond packet 51 and the second battery pack 52 combine output power, are specifically realized by the BMS module of electric car, and the present invention does not limit this
System.In conjunction with shown in Fig. 7 and Figure 10, under the driving of parallel drive signal, the first driving access and second of the first battery pack 51
First driving access of battery pack 52 is also turned on, and the second battery pack 52 passes through the high pressure DC/DC that primary side winding L1 and L2 are formed
Circuit in parallel accesses the output branch of the first battery pack 51, with 51 parallel drive high power load of the first battery pack.Second battery
Packet 52 accesses the output branches of the first battery pack 51 by the high pressure DC/DC circuit in parallel that primary side winding L1 and L2 are formed, can be with
It realizes the output for adjusting the second battery pack 52 by the high pressure DC/DC circuit that primary side winding L1 and L2 are formed, stablizes shunt voltage
Effect.
In above-mentioned battery circuit, the second battery pack 52 is connected to the prime AC/DC of Vehicular charger by second branch P2
Between circuit 2 and rear class DC/DC circuit 3, a pair of of primary side winding L1 and L2 of multiplexing rear class DC/DC circuit 3 is realized；Pass through borrow
The rear class DC/DC circuit 3 of OBC circuit realizes OBC circuit and the same circuit of high pressure DC/DC circuit multiplexer.Primary side winding L1 and L2
The high pressure DC/DC circuit at place can be respectively used to conversion prime AC/DC circuit 2 and the first battery when the first battery pack 51 charges
Voltage between packet 51, the electricity when the charging of the second battery pack 52 between conversion prime AC/DC circuit 2 and the second battery pack 52
It presses and regulates and controls the output of the second battery pack 52 when the second battery pack 52 is connected in parallel to the first battery pack 51 to stablize electricity in parallel
Pressure.By increasing vice-side winding L3 in rear class DC/DC circuit 3, multiplexing and the vice-side winding of source side primary side winding L1 are realized
L3's is integrated；Realize being closely integrated for low voltage DC/DC circuit and OBC circuit.Vice-side winding L3 and source side primary side winding L1 institute
Low voltage DC/DC circuit can be respectively used to conversion electric power interface 43 and third branch when alternating current directly drives low-power load
Voltage between the P3 of road is converted between the first battery pack 51 and third branch P3 when the first battery pack 51 drives low-power load
Voltage and electricity between the second battery pack 52 and third branch P3 is converted when the second battery pack 52 drives low-power load
Pressure.To which in above-mentioned battery circuit, same set of heat is can be used in OBC circuit, high pressure DC/DC circuit and low voltage DC/DC circuit
Management system can be suitably used for being connected to the first battery pack 51 and the second battery pack 52 by primary side winding L1 and L2 charging or drive
High power load drives low-power load by vice-side winding L3, and alternating current drives low-power load by vice-side winding L3, with
And second battery pack 52 by the several scenes such as 51 parallel drive high power load of primary side winding L1 and L2 and the first battery pack, save
It saves DC/DC exemplar cost and volume to occupy, makes that circuit arrangement is more flexible and convenient, cost performance is high.
The present invention also provides the electric car for being configured with above-mentioned battery circuit, which can be used above-mentioned charging
Control method and discharge control method carry out the charge and discharge of battery pack.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (10)
1. a kind of Vehicular charger circuit, including concatenated prime AC/DC circuit and rear class DC/DC circuit, it is characterised in that:
The rear class DC/DC circuit includes a pair of of primary side winding and a vice-side winding, and the vice-side winding concatenates a third branch；
First I/O interface is connected to the rear class DC/DC circuit by the first branch, and the first I/O interface can be through the primary side
Winding is connected to the prime AC/DC circuit or is connected to the third branch through the vice-side winding；
2nd I/O interface is connected between the prime AC/DC circuit and the rear class DC/DC circuit by second branch, described
2nd I/O interface can be connected to through the primary side winding prime AC/DC circuit or the first branch or through the secondary side around
Group is connected to the third branch.
2. Vehicular charger circuit as described in claim 1, which is characterized in that further include:
Power interface, is connected to the prime AC/DC circuit, and the power interface can be connected to the first I/ through the primary side winding
O Interface and/or the 2nd I/O interface, or the third branch is connected to through the vice-side winding.
3. Vehicular charger circuit as claimed in claim 2, which is characterized in that the prime AC/DC circuit includes:
Rectification circuit is connected to the power interface；And
Power factor correction circuit concatenates the rectification circuit and the rear class DC/DC circuit.
4. Vehicular charger circuit as described in claim 1, which is characterized in that described when rear class DC/DC circuit connection
The induced electromotive force that vice-side winding generates is less than the induced electromotive force that the primary side winding generates.
5. Vehicular charger circuit as described in claim 1, which is characterized in that each branch is equipped with switch member, the switch member
Including one or more switch elements, the switch element is selected from relay, contactor, electronic switch or air switch.
6. a kind of battery circuit, which is characterized in that the battery circuit includes as described in any one in claim 1-5 vehicle-mounted fills
Motor circuit, and:
First battery pack, is connected to the first I/O interface, and first battery pack can be successively through the prime AC/DC circuit, institute
It states primary side winding and connects its charging path with the first branch, or successively connect it with an output branch through the first branch
First driving access, or successively connect its second driving through the first branch, the vice-side winding and the third branch and lead to
Road；
Second battery pack, is connected to the 2nd I/O interface, and second battery pack can be successively through the prime AC/DC circuit, institute
It states primary side winding and connects its charging path with the second branch, or successively through the second branch, primary side winding, described
The first branch connected with the output branch its first driving access, or successively through the second branch, the vice-side winding and
The third branch connects its second driving access.
7. battery circuit as claimed in claim 6, which is characterized in that first battery pack is fixed, second battery pack
Detachably.
8. a kind of charge control method, for controlling the charging of battery circuit as claimed in claims 6 or 7, which is characterized in that
Include:
According to the first charging signals, the charging path of first battery pack is connected, keeps first battery pack logical through its charging
Road charging；
According to the second charging signals, the charging path of second battery pack is connected, keeps second battery pack logical through its charging
Road charging.
9. a kind of discharge control method, for controlling the electric discharge of battery circuit as claimed in claims 6 or 7, which is characterized in that
Include:
According to the first driving signal, connect the first driving access of first battery pack, make first battery pack through its
One driving access driving first kind load；And/or the second driving access of first battery pack is connected, make first battery
Bao Jingqi second drives access to drive the load of the second class；
According to the second driving signal, connect the first driving access of second battery pack, make second battery pack through its
One driving access driving first kind load；And/or the second driving access of second battery pack is connected, make second battery
Bao Jingqi second drives access to drive the load of the second class；
According to parallel drive signal, connects the first driving access of first battery pack and the first of second battery pack drives
Dynamic access, makes first battery pack and second battery pack drive institute through the first branch and the output branch circuit parallel connection
State first kind load.
10. a kind of electric car, which is characterized in that the electric car is configured with battery electricity as claimed in claims 6 or 7
Road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910536000.6A CN110165749A (en) | 2019-06-20 | 2019-06-20 | Electric car, Vehicular charger circuit, battery circuit and charge/discharge control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910536000.6A CN110165749A (en) | 2019-06-20 | 2019-06-20 | Electric car, Vehicular charger circuit, battery circuit and charge/discharge control method |
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| CN101610932A (en) * | 2007-02-20 | 2009-12-23 | 丰田自动车株式会社 | Elec. vehicle, vehicle charge device and Vehicular charging system |
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| WO2017061188A1 (en) * | 2015-10-08 | 2017-04-13 | 富士電機株式会社 | Vehicle-mounted charging device |
| CN107284273A (en) * | 2017-07-11 | 2017-10-24 | 深圳市永联科技股份有限公司 | A kind of Vehicular charger main circuit of integrated DC/DC converters and its control |
| CN207368721U (en) * | 2017-10-31 | 2018-05-15 | 北京新能源汽车股份有限公司 | A kind of Vehicular power system and electric automobile |
| CN109728624A (en) * | 2018-12-27 | 2019-05-07 | 台达电子企业管理（上海）有限公司 | Vehicle-mounted charge-discharge system |
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- 2019-06-20 CN CN201910536000.6A patent/CN110165749A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101610932A (en) * | 2007-02-20 | 2009-12-23 | 丰田自动车株式会社 | Elec. vehicle, vehicle charge device and Vehicular charging system |
| CN102089177A (en) * | 2008-03-17 | 2011-06-08 | 丰田自动车株式会社 | Electric vehicle |
| WO2017061188A1 (en) * | 2015-10-08 | 2017-04-13 | 富士電機株式会社 | Vehicle-mounted charging device |
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Application publication date: 20190823 |