CN106160143B - The vehicle-mounted charging device and electric car of electric car - Google Patents

The vehicle-mounted charging device and electric car of electric car Download PDF

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Publication number
CN106160143B
CN106160143B CN201610585920.3A CN201610585920A CN106160143B CN 106160143 B CN106160143 B CN 106160143B CN 201610585920 A CN201610585920 A CN 201610585920A CN 106160143 B CN106160143 B CN 106160143B
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China
Prior art keywords
controller
converter
way
vehicle
full
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CN201610585920.3A
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CN106160143A (en
Inventor
鲁卫申
庄启超
肖胜然
蒋荣勋
苏伟
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Beijing Electric Vehicle Co Ltd
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Beijing Electric Vehicle Co Ltd
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/20Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0068Battery or charger load switching, e.g. concurrent charging and load supply
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/72Electric energy management in electromobility
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/80Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/92Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/14Plug-in electric vehicles

Abstract

The invention discloses a kind of vehicle-mounted charging device of electric car and electric car, described device includes:Two-way AC/DC converter;Two-way DC/DC converter;Control module, control module includes first to third controller, first controller is connected with two-way AC/DC converter, second controller is connected with two-way DC/DC converter, third controller is communicated with the first controller and second controller respectively, wherein, third controller carries out control to two-way AC/DC converter by the first controller according to the mode instruction received and is controlled by second controller two-way DC/DC converter, so as to be charged by AC power source to power battery when vehicle-mounted charging device is in charge mode, or vehicle-mounted charging device gives AC load power supply by power battery when being in inverter mode.The device can be realized full-digital control, simplifies control circuit more, and improve flexibility, versatility and the degree of intelligence of system, facilitates the realization and extension of hardware and software platform.

Description

The vehicle-mounted charging device and electric car of electric car
Technical field
The present invention relates to electric vehicle engineering field, in particular to the vehicle-mounted charging device and a kind of tool of a kind of electric car There is the electric car of the vehicle-mounted charging device.
Background technique
In recent years, being constantly progressive with electric vehicle engineering, electric automobile market has had gradually developed, as electronic Important component-vehicle-mounted charging device of automobile also has made great progress.But in the related technology, to vehicle-mounted charge When device is controlled, control circuit is complex, and system flexibility is poor, versatility is low, is unfavorable for the flat of vehicle-mounted charging device Platform.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, the device can be real an object of the present invention is to provide a kind of vehicle-mounted charging device of electric car Existing full-digital control, simplifies control circuit more, and improve flexibility, versatility and the intelligence degree of system, Facilitate the realization and extension of hardware and software platform.
It is another object of the present invention to propose a kind of electric car.
To achieve the above object, a kind of vehicle-mounted charging device for electric car that one aspect of the present invention embodiment proposes, packet It includes:The input terminal of two-way AC/DC converter, the two-way AC/DC converter is connected with AC power source or AC load;It is two-way DC/DC converter, the input terminal of the two-way DC/DC converter is connected with the output end of the two-way AC/DC converter, described The output end of two-way DC/DC converter is connected with the power battery of the electric car;Control module, the control module include First is connected to third controller, the first controller with the two-way AC/DC converter, second controller and the two-way DC/ DC converter is connected, and third controller is communicated respectively at first controller and the second controller, wherein described Third controller controls the two-way AC/DC converter by first controller according to the mode instruction received The two-way DC/DC converter is controlled with by the second controller, is filled so that the vehicle-mounted charging device is in It is charged by the AC power source to the power battery when power mode or the vehicle-mounted charging device is in inversion mould It is powered by the power battery to the AC load when formula.
The vehicle-mounted charging device of electric car according to an embodiment of the present invention, control module are controlled including first to third Device, the first controller are connected with two-way AC/DC converter, and second controller is connected with two-way DC/DC converter, third controller It is communicated respectively with the first controller and second controller, wherein third controller passes through according to the mode instruction received First controller carries out control to two-way AC/DC converter and is controlled by second controller two-way DC/DC converter, So that vehicle-mounted charging device is charged by AC power source to power battery when being in charge mode or vehicle-mounted charging device It is powered by power battery to AC load when in inverter mode, to realize full-digital control, makes control circuit more Add simplification, and improve flexibility, versatility and the degree of intelligence of system, facilitates the realization and extension of hardware and software platform.
According to one embodiment of present invention, the two-way AC/DC converter includes:It is made of first to fourth switching tube The first full-bridge circuit, the first input end and the second input terminal of first full-bridge circuit pass through the first inductance and second respectively Inductance is corresponding with the both ends of the AC power source or the AC load to be connected;First capacitor, the first capacitor are connected in parallel on institute Between the output end for stating the first full-bridge circuit, wherein when the vehicle-mounted charging device is in charge mode, first control Device is by controlling first to fourth switching tube so that first full-bridge circuit work is in rectification state;It vehicle-mounted is filled when described When electric installation is in inverter mode, first controller is by controlling first to fourth switching tube so that described first is complete Bridge circuit works in inverter mode.
According to one embodiment of present invention, the two-way DC/DC converter includes:It is made of the 5th to the 8th switching tube The second full-bridge circuit, the input terminal of second full-bridge circuit is connected with the output end of the two-way AC/DC converter;Series connection The second capacitor and third inductance, one end of second capacitor is connected with the first output end of second full-bridge circuit, institute The other end for stating the second capacitor is connected with one end of the third inductance, second capacitor and the third inductance series connection after with First switch is in parallel;Transformer, the first end of the transformer are connected with the other end of the third inductance, the transformer Second end is connected with the second output terminal of second full-bridge circuit;Concatenated third capacitor and the 4th inductance, the third electricity One end of appearance is connected with the third end of the transformer, one end phase of the other end of the third capacitor and the 4th inductance Even, the third capacitor and the 4th inductance are in parallel with second switch after connecting;It is made of the 9th to the 12nd switching tube Third full-bridge circuit, the first input end of the third full-bridge circuit are connected with the other end of the 4th inductance, the third Second input terminal of full-bridge circuit is connected with the 4th end of the transformer, and the output end of the third full-bridge circuit is moved with described Power battery is connected, wherein when the vehicle-mounted charge is in charge mode, the second controller controls the first switch and closes It closes, and controls the second switch and disconnect, and control the second full-bridge circuit work is in LLC state, and control described the Three full-bridge circuits work in rectification state;When the vehicle-mounted charging device is in inverter mode, the second controller control The second switch closure, and control the first switch and disconnect, and the control third full-bridge circuit work is in LLC shape State, and the second full-bridge circuit work is controlled in rectification state.
According to one embodiment of present invention, the vehicle-mounted charging device of above-mentioned electric car further includes:First filtered electrical Road, first filter circuit include:Common mode inductance, the first end and second end of the common mode inductance and the AC power source or The both ends of the AC load are corresponding to be connected, the third end and the 4th end of the common mode inductance and the two-way AC/DC converter Input terminal corresponding be connected;4th capacitor, the 4th capacitor are connected in parallel between the first end and second end of the common mode inductance; 5th capacitor, the 5th capacitor are connected in parallel between the third end of the common mode inductance and the 4th end.
According to one embodiment of present invention, the vehicle-mounted charging device of above-mentioned electric car further includes:Second filtered electrical Road, second filter circuit include:6th capacitor, the 6th capacitor are connected in parallel on the output of the two-way DC/DC converter Between end.
An example according to the present invention, the third controller are also used to:With the entire car controller of the electric car It is communicated, to receive the mode instruction that the entire car controller is sent.
According to one embodiment of present invention, the third controller by CAN (Controller Area Network, Controller LAN) communication mode communicated with the entire car controller of the electric car.
According to one embodiment of present invention, the third controller passes through SPI (Serial Peripheral Interface, Serial Peripheral Interface), (Serial Communication Interface, serial communication connect by CAN, SCI Mouthful) or IIC (Inter-Integrated Circuit, IC bus) bus respectively with first controller and institute Second controller is stated to be communicated.
According to one embodiment of present invention, between the third controller and first controller and described It is isolated between three controllers and the second controller.
In order to achieve the above objectives, a kind of electric car that another aspect of the present invention embodiment proposes comprising above-mentioned electricity The vehicle-mounted charging device of electrical automobile.
The electric car of the embodiment of the present invention can be realized total by the vehicle-mounted charging device of above-mentioned electric car Wordization control, simplifies control circuit more, and improve flexibility, versatility and the degree of intelligence of system, helps to put down The realization and extension of platform.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partially become from the following description Obviously, or practice through the invention is recognized.
Detailed description of the invention
Fig. 1 is the block diagram of the vehicle-mounted charging device of the electric car of embodiment according to the present invention;
Fig. 2 is the circuit diagram of two-way AC/DC converter and two-way DC/DC converter according to an embodiment of the invention;
Fig. 3 is the partial circuit diagram of the vehicle-mounted charging device of electric car according to an embodiment of the invention;And
Fig. 4 is the structural schematic diagram of the vehicle-mounted charging device of electric car according to an embodiment of the invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
With reference to the accompanying drawings come describe the embodiment of the present invention proposition electric car vehicle-mounted charging device and with its Electric car.
The block diagram of the vehicle-mounted charging device of the electric car of Fig. 1 embodiment according to the present invention.As shown in Figure 1, the electricity The vehicle-mounted charging device of electrical automobile includes:Two-way AC/DC converter 100, two-way DC/DC converter 200 and control module 300.
Wherein, the input terminal of two-way AC/DC converter 100 is connected with AC power source or AC load;Two-way DC/DC transformation The input terminal of device 200 is connected with the output end of two-way AC/DC converter 100, the output end and electricity of two-way DC/DC converter 200 The power battery of electrical automobile is connected;Control module 300 includes the first controller 310, second controller 320 and third controller 330, the first controller 310 is connected with two-way AC/DC converter 100, second controller 320 and two-way 200 phase of DC/DC converter Even, third controller 330 with communicated respectively with the first controller 310 and second controller 320, wherein third controller 330 control to two-way AC/DC converter 100 and by the according to the mode instruction that receives by the first controller 310 Two controllers 320 control two-way DC/DC converter 200, so that vehicle-mounted charging device passes through friendship when being in charge mode By power battery to AC load when galvanic electricity source charges to power battery or vehicle-mounted charging device is in inverter mode Power supply.
Specifically, when the mode instruction that third controller 330 receives is charge mode, third controller 330 passes through First controller 310 controls two-way AC/DC converter 100, while being become by second controller 320 to two-way DC/DC Parallel operation 200 is controlled, and to realize the charge function of vehicle-mounted charging device, i.e., obtains energy from AC power source (such as power grid 220V) Amount charges for the high voltage power battery of electric car;When the mode instruction that third controller 330 receives is inverter mode When, third controller 330 controls two-way AC/DC converter 100 by the first controller 310, and passes through the second control Device 320 controls two-way DC/DC converter 200, to realize the inversion function of vehicle-mounted charging device, i.e., by electric car The energy of high voltage power battery is converted into alternating current (alternating current that such as voltage is 220V) and is powered to AC load, Huo Zhewei The power battery of other electric cars charges, and realizes the mutual charging between vehicle and vehicle.
According to one embodiment of present invention, as shown in figure 4, third controller 330 is also used to the vehicle with electric car Controller is communicated, to receive the mode instruction of entire car controller transmission.
Specifically, third controller 330 is mainly responsible for the control of charging/inverter mode and the vehicle of vehicle-mounted charging device Communication and connection confirmation function, control guiding function, that entire car controller enables vehicle-mounted charging device, vehicle-mounted charging device is enabled Entire car controller and the correlation function of charge port electronic lock etc..
Wherein, third controller 330 can be communicated by CAN communication mode with the entire car controller of electric car.Separately Outside, third controller 330 can by SPI, CAN, SCI or iic bus respectively with the first controller 310 and second controller 320 are communicated, and specific communication mode can be any of them, here with no restrictions.Moreover, third controller 330 with It can also be isolated between first controller 310 and between third controller 330 and second controller 320, and three Between controller not altogether.In other words, it is taken between the first controller 310 and third controller 330 and communication is isolated, communication modes can To be SPI, CAN, SCI or IIC etc.;It is taken between second controller 320 and third controller 330 and communication, communication party is isolated Formula can be SPI, CAN, SCI or IIC etc..
Therefore, the vehicle-mounted charging device of the embodiment of the present invention is designed using " three core " microprocessor architecture design, is realized two-way AC/DC converter, two-way DC/DC converter and real-time monitoring and control with external function microprocessor, to realize The full-digital control of vehicle-mounted charging device so that control circuit more simplifies, and improves the flexibility of system, versatility And degree of intelligence, be analog control mode it is incomparable, and facilitate the realization and extension of hardware and software platform, for example, can be with For the exploitation of subsequent ASIL (Automotive Safety Integrity Level, automotive safety integrity level) functional safety Reserve enough interfaces.In addition, due to using 2 stage converter, including two-way AC/DC converter and two-way DC/DC converter, Efficiency, the safety and reliability that system can thus be effectively improved, reduce the Danger Electric shock risk of user.In addition, working as AC power source When for power grid, using the peak-valley difference of power grid, energy conversion is reasonably carried out between power grid and the power battery of electric car, To the effectively save social energy and user cost.
According to one embodiment of present invention, as shown in Fig. 2, two-way AC/DC converter 100 includes:First full-bridge circuit 110, the first inductance L1, the second inductance L2 and first capacitor C1, the first full-bridge circuit 110 are switched by first switch tube Q1 to the 4th Pipe Q4 is constituted, and the first input end and the second input terminal of the first full-bridge circuit 110 pass through the first inductance L1 and the second inductance respectively L2 is corresponding with the both ends of AC power source or AC load to be connected, and first capacitor C1 is connected in parallel on the output end of the first full-bridge circuit 110 Between.Wherein, when vehicle-mounted charging device is in charge mode, the first controller 310 passes through control first switch tube Q1 to the Four switching tube Q4 are so that the first full-bridge circuit 110 works in rectification state;When vehicle-mounted charging device is in inverter mode, first Controller 310 is by control first switch tube Q1 to the 4th switching tube Q4 so that the work of the first full-bridge circuit 110 is in inverter mode.
Specifically, the first controller 310 is mainly responsible for the control to two-way AC/DC converter 100, including:To alternating current The detection of the voltage and current in source, to control of the first switch tube Q1 to the 4th switching tube Q4, the detection to DC bus-bar voltage with And to first switch tube Q1 to the temperature detection etc. of the 4th switching tube Q4, also, the first controller 310 also becomes two-way AC/DC Parallel operation 100 carries out overvoltage protection, under-voltage protection, overcurrent protection, short-circuit protection and overheat protector etc..Wherein, the first controller 310 pass through the conducting timing of control first switch tube Q1 to the 4th switching tube Q4, rectifying the work of the first full-bridge circuit 110 State or inverter mode, while PFC also is carried out to the first full-bridge circuit 110, power factor not only can be improved, And conversion efficiency can be improved.
Further, as shown in Fig. 2, two-way DC/DC converter 200 includes:Second full-bridge circuit 210, the second capacitor C2, Third inductance L3, first switch K1, transformer T1, third capacitor C3, the 4th inductance L4, second switch K2 and third full-bridge circuit 220.Wherein, the second full-bridge circuit 210 is made of the 5th switching tube Q5 to the 8th switching tube Q8, the second full-bridge circuit 210 it is defeated Enter end to be connected with the output end of two-way AC/DC converter 100;Second capacitor C2 and third inductance L3 series connection, the second capacitor C2's One end is connected with the first output end of the second full-bridge circuit 210, one end phase of the other end and third inductance L3 of the second capacitor C2 Even, in parallel with first switch K1 after the second capacitor C2 and third inductance L3 series connection;The first end and third inductance L3 of transformer T1 The other end be connected, the second end of transformer T1 is connected with the second output terminal of the second full-bridge circuit 210;Third capacitor C3 and Four inductance L4 series connection, one end of third capacitor C3 are connected with the third end of transformer T1, the other end and the 4th of third capacitor C3 One end of inductance L4 is connected, in parallel with second switch K2 after third capacitor C3 and the 4th inductance L4 series connection;Third full-bridge circuit 220 It is made of the 9th switching tube Q9 to the 12nd switching tube Q12, the first input end of third full-bridge circuit 220 and the 4th inductance L4's The other end is connected, and the second input terminal of third full-bridge circuit 220 is connected with the 4th end of transformer T1, third full-bridge circuit 220 Output end be connected with power battery.
Wherein, when vehicle-mounted charging device is in charge mode, second controller 320 controls first switch K1 closure, and It controls second switch K2 to disconnect, and the second full-bridge circuit 210 of control works in LLC state, and controls third full-bridge circuit 220 Work is in rectification state;When vehicle-mounted charging device is in inverter mode, second controller 320 controls second switch K2 closure, And first switch K1 disconnection is controlled, and control third full-bridge circuit 220 works in LLC state, and controls the second full-bridge circuit 210 work are in rectification state.
Specifically, second controller 320 is mainly responsible for the control to two-way DC/DC converter 200, including:It opens the 5th Close pipe Q5 to the 12nd switching tube Q12 control, to the detection of third inductance L3 and the 4th inductance L4 electric current, to high voltage direct current The detection of current voltage, the detection to power battery voltage and the inspection of the temperature to the 5th switching tube Q5 to the 12nd switching tube Q12 It surveys, also, second controller 320 also carries out overvoltage protection, under-voltage protection, overcurrent protection, short to two-way DC/DC converter 200 Road protection and overheat protector etc..
Wherein, disconnection and closure and the 5th that second controller 320 passes through control first switch K1 and second switch K2 The conducting timing of switching tube Q5 to the 8th switching tube Q8, the 9th switching tube Q9 to the 12nd switching tube Q12 realizes energy transmission side To control.Specifically, when charging to power battery, second controller 320 by control first switch K1 closure, Second switch K2 is disconnected, and makes the 5th switching tube Q5 to the 8th switching tube Q8 work in LLC state, while making the 9th switching tube Q9 extremely 12nd switching tube Q12 works in synchronous rectification state;When power battery supplying power for outside, second controller 320 passes through control Second switch K2 closure, first switch K1 are disconnected, and make the 9th switching tube Q9 to the 12nd switching tube Q12 work in LLC state, together When make the 5th switching tube Q5 to the 8th switching tube Q8 work in synchronous rectification state.
Therefore, in an embodiment of the present invention, third controller passes through the first controller according to the mode instruction received Two-way AC/DC converter is controlled, and two-way DC/DC converter is controlled by second controller, is realized vehicle-mounted The charging and inversion function of charging unit, moreover, because LLC is easily achieved the zero voltage switch and Zero Current Switch of switching tube, The dominant loss source that thus can be avoided switching tube, so that LLC reaches very high efficiency.In addition, since two-way DC/DC is converted Device is isolated by transformer, thus improves the safety of system, reliability, reduces the Danger Electric shock risk of user.
According to one embodiment of present invention, as shown in figure 3, the vehicle-mounted charging device of above-mentioned electric car further includes: First filter circuit 400.First filter circuit 400 includes:Common mode inductance L5, the 4th capacitor C4 and the 5th capacitor C5, wherein altogether The first end and second end of mould inductance L5 is corresponding with the both ends of AC power source or AC load to be connected, the third end of common mode inductance L5 With the 4th end is corresponding with the input terminal of two-way AC/DC converter 100 is connected, the 4th capacitor C4 is connected in parallel on the first of common mode inductance L5 Between end and second end, the 5th capacitor C5 is connected in parallel between the third end of common mode inductance L5 and the 4th end.Pass through the filter circuit Unwanted harmonic wave in AC power source or AC load can be effectively removed, the pulsation of electric current is reduced, keeps electric current more smooth.
Further, as shown in figure 3, the vehicle-mounted charging device of above-mentioned electric car further includes:Second filter circuit 500.Second filter circuit 500 includes:6th capacitor C6, the 6th capacitor C6 are connected in parallel on the output end of two-way DC/DC converter 200 Between, so that output voltage is more smooth.
In addition, as shown in figure 3, the vehicle-mounted charging device of above-mentioned electric car further includes:Protective tube F1 and varistor Z1, wherein protective tube F1 is mainly used for the overcurrent short-circuit protection of entire vehicle-mounted charging device, and varistor Z1 is mainly used for over-voltage Protection.
It should be noted that in an embodiment of the present invention, first to third controller can be MCU (Micro Controller Unit, micro-control unit), DSP (Digital Signal Processing, Digital Signal Processing) etc., One to the 12nd switching tube can be IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar crystal Pipe), MOSFET (partly lead by Metal-Oxide-Semiconductor Field-Effect Transistor, metal-oxide Body field effect transistor) etc., first to second switch can be for relay, switching tube etc., specifically here with no restrictions.
In conclusion the vehicle-mounted charging device of electric car according to an embodiment of the present invention, control module include first to Third controller, the first controller are connected with two-way AC/DC converter, and second controller is connected with two-way DC/DC converter, the Three controllers are communicated with the first controller and second controller respectively, wherein third controller is according to the mode received Instruction control and by second controller to two-way DC/DC converter to two-way AC/DC converter by the first controller It is controlled, so as to charged by AC power source to power battery when vehicle-mounted charging device is in charge mode, Huo Zheche It carries and is powered by power battery to AC load when charging unit is in inverter mode, to realize full-digital control, made Control circuit more simplifies, and improves flexibility, versatility and the degree of intelligence of system, facilitate hardware and software platform realization and Extension.
In addition, the embodiment of the present invention also proposed a kind of electric car comprising the vehicle-mounted of above-mentioned electric car is filled Electric installation.
The electric car of the embodiment of the present invention can be realized total by the vehicle-mounted charging device of above-mentioned electric car Wordization control, simplifies control circuit more, and improve flexibility, versatility and the degree of intelligence of system, helps to put down The realization and extension of platform.
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot It is interpreted as indication or suggestion relative importance or implicitly indicates the quantity of indicated technical characteristic.Define as a result, " the One ", the feature of " second " can explicitly or implicitly include at least one of the features.In the description of the present invention, " multiple " It is meant that at least two, such as two, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc. Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral;It can be mechanical connect It connects, is also possible to be electrically connected;It can be directly connected, can also can be in two elements indirectly connected through an intermediary The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned Embodiment is changed, modifies, replacement and variant.

Claims (9)

1. a kind of vehicle-mounted charging device of electric car, which is characterized in that including:
The input terminal of two-way AC/DC converter, the two-way AC/DC converter is connected with AC power source or AC load;
Two-way DC/DC converter, the output end of the input terminal of the two-way DC/DC converter and the two-way AC/DC converter It is connected, the output end of the two-way DC/DC converter is connected with the power battery of the electric car;
Control module, the control module include first to third controller, the first controller and the two-way AC/DC converter Be connected, second controller is connected with the two-way DC/DC converter, third controller respectively with first controller and described Second controller is communicated, wherein the third controller passes through first controller according to the mode instruction received Control is carried out to the two-way AC/DC converter and the two-way DC/DC converter is controlled by the second controller System, so as to charged by the AC power source to the power battery when vehicle-mounted charging device is in charge mode, Or the vehicle-mounted charging device is powered by the power battery to the AC load when being in inverter mode;
The two-way DC/DC converter includes:
The second full-bridge circuit being made of the 5th to the 8th switching tube, the input terminal of second full-bridge circuit with it is described two-way The output end of AC/DC converter is connected;
Concatenated second capacitor and third inductance, first output end of one end of second capacitor and second full-bridge circuit It is connected, the other end of second capacitor is connected with one end of the third inductance, second capacitor and the third inductance It is in parallel with first switch after series connection;
Transformer, the first end of the transformer are connected with the other end of the third inductance, the second end of the transformer with The second output terminal of second full-bridge circuit is connected;
Concatenated third capacitor and the 4th inductance, one end of the third capacitor is connected with the third end of the transformer, described The other end of third capacitor is connected with one end of the 4th inductance, with the after the third capacitor and the 4th inductance series connection Two switch in parallel;
The third full-bridge circuit being made of the 9th to the 12nd switching tube, the first input end of the third full-bridge circuit with it is described The other end of 4th inductance is connected, and the second input terminal of the third full-bridge circuit is connected with the 4th end of the transformer, institute The output end for stating third full-bridge circuit is connected with the power battery, wherein
When the vehicle-mounted charging device is in charge mode, the second controller controls the first switch closure, and controls It makes the second switch to disconnect, and control second full-bridge circuit works in LLC state, and controls the third full-bridge electricity Road works in rectification state;
When the vehicle-mounted charging device is in inverter mode, the second controller controls the second switch closure, and controls It makes the first switch to disconnect, and the control third full-bridge circuit works in LLC state, and controls the second full-bridge electricity Road works in rectification state.
2. the vehicle-mounted charging device of electric car as described in claim 1, which is characterized in that the two-way AC/DC converter Including:
The first full-bridge circuit being made of first to fourth switching tube, the first input end of first full-bridge circuit and second defeated Enter end to be connected by the way that the first inductance and the second inductance are corresponding with the both ends of the AC power source or the AC load respectively;
First capacitor, the first capacitor are connected in parallel between the output end of first full-bridge circuit, wherein
When the vehicle-mounted charging device is in charge mode, first controller is by controlling first to fourth switch It manages so that first full-bridge circuit work is in rectification state;
When the vehicle-mounted charging device is in inverter mode, first controller is by controlling first to fourth switch It manages so that first full-bridge circuit work is in inverter mode.
3. the vehicle-mounted charging device of electric car as described in claim 1, which is characterized in that further include:First filter circuit, First filter circuit includes:
The both ends pair of common mode inductance, the first end and second end of the common mode inductance and the AC power source or the AC load It should be connected, the third end and the 4th end of the common mode inductance are corresponding with the input terminal of the two-way AC/DC converter to be connected;
4th capacitor, the 4th capacitor are connected in parallel between the first end and second end of the common mode inductance;
5th capacitor, the 5th capacitor are connected in parallel between the third end of the common mode inductance and the 4th end.
4. the vehicle-mounted charging device of electric car as described in claim 1, which is characterized in that further include:Second filter circuit, Second filter circuit includes:
6th capacitor, the 6th capacitor are connected in parallel between the output end of the two-way DC/DC converter.
5. the vehicle-mounted charging device of electric car as described in claim 1, which is characterized in that the third controller is also used In:It is communicated with the entire car controller of the electric car, to receive the mode instruction that the entire car controller is sent.
6. the vehicle-mounted charging device of electric car as claimed in claim 5, which is characterized in that the third controller passes through CAN communication mode is communicated with the entire car controller of the electric car.
7. the vehicle-mounted charging device of electric car as described in claim 1, which is characterized in that the third controller passes through SPI, CAN, SCI or iic bus are communicated with first controller and the second controller respectively.
8. the vehicle-mounted charging device of electric car as claimed in claim 7, which is characterized in that in the third controller and institute It states between the first controller and is isolated between the third controller and the second controller.
9. a kind of electric car, which is characterized in that filled including the vehicle-mounted of electric car such as of any of claims 1-8 Electric installation.
CN201610585920.3A 2016-07-22 2016-07-22 The vehicle-mounted charging device and electric car of electric car Active CN106160143B (en)

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