CN106160143A - The vehicle-mounted charging device of electric automobile and electric automobile - Google Patents

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

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Publication number
CN106160143A
CN106160143A CN201610585920.3A CN201610585920A CN106160143A CN 106160143 A CN106160143 A CN 106160143A CN 201610585920 A CN201610585920 A CN 201610585920A CN 106160143 A CN106160143 A CN 106160143A
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CN
China
Prior art keywords
controller
changer
vehicle
way
charging device
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Granted
Application number
CN201610585920.3A
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Chinese (zh)
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CN106160143B (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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Priority to CN201610585920.3A priority Critical patent/CN106160143B/en
Publication of CN106160143A publication Critical patent/CN106160143A/en
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Publication of CN106160143B publication Critical patent/CN106160143B/en
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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 vehicle-mounted charging device and the electric automobile of a kind of electric automobile, described device includes: two-way AC/DC changer;Two-way DC/DC changer;Control module, control module includes the first to the 3rd controller, first controller is connected with two-way AC/DC changer, second controller is connected with two-way DC/DC changer, 3rd controller communicates with the first controller and second controller respectively, wherein, two-way AC/DC changer is controlled by the first controller according to the mode instruction received and is controlled two-way DC/DC changer by second controller by the 3rd controller, so that electrokinetic cell is charged when being in charge mode by vehicle-mounted charging device by alternating current power supply, or vehicle-mounted charging device is powered to AC load by electrokinetic cell when being in inverter mode.This device is capable of full-digital control, makes control circuit more simplify, and improves the motility of system, versatility and degree of intelligence, contributes to realization and the extension of hardware and software platform.

Description

The vehicle-mounted charging device of electric automobile and electric automobile
Technical field
The present invention relates to electric vehicle engineering field, particularly to vehicle-mounted charging device and a kind of tool of a kind of electric automobile There is the electric automobile of this vehicle-mounted charging device.
Background technology
In recent years, along with the continuous progress of electric vehicle engineering, electric automobile market the most gradually grows up, as electronic The important component part vehicle-mounted charging device of automobile also has made great progress.But, in correlation technique, 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
It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.
To this end, it is an object of the present invention to propose the vehicle-mounted charging device of a kind of electric automobile, this device can be real Existing full-digital control, makes control circuit more simplify, and improves the motility of system, versatility and intelligence degree, Contribute to realization and the extension of hardware and software platform.
Further object is that a kind of electric automobile of proposition.
For achieving the above object, the vehicle-mounted charging device of a kind of electric automobile that one aspect of the present invention embodiment proposes, bag Including: two-way AC/DC changer, the input of described two-way AC/DC changer is connected with alternating current power supply or AC load;Two-way DC/DC changer, the input of described two-way DC/DC changer is connected with the outfan of described two-way AC/DC changer, described The outfan of two-way DC/DC changer is connected with the electrokinetic cell of described electric automobile;Control module, described control module includes First to the 3rd controller, the first controller is connected with described two-way AC/DC changer, second controller and described two-way DC/ DC changer is connected, and the 3rd controller communicates respectively at described first controller and described second controller, wherein, described Described two-way AC/DC changer is controlled by described first controller by the 3rd controller according to the mode instruction received With by described second controller, described two-way DC/DC changer is controlled, so that described vehicle-mounted charging device is in and fills By described alternating current power supply, described electrokinetic cell is charged during power mode, or described vehicle-mounted charging device is in inversion mould Power to described AC load by described electrokinetic cell during formula.
The vehicle-mounted charging device of electric automobile according to embodiments of the present invention, control module includes the first to the 3rd control Device, the first controller is connected with two-way AC/DC changer, and second controller is connected with two-way DC/DC changer, the 3rd controller Communicating with the first controller and second controller respectively, wherein, the 3rd controller passes through according to the mode instruction received Two-way AC/DC changer is controlled and is controlled two-way DC/DC changer by second controller by the first controller, So that electrokinetic cell is charged when being in charge mode by vehicle-mounted charging device by alternating current power supply, or vehicle-mounted charging device Powered to AC load by electrokinetic cell when being in inverter mode, it is achieved thereby that full-digital control, make control circuit more Add simplification, and improve the motility of system, versatility and degree of intelligence, contribute to realization and the extension of hardware and software platform.
According to one embodiment of present invention, described two-way AC/DC changer includes: be made up of first to fourth switching tube The first full-bridge circuit, the first input end of described first full-bridge circuit and the second input are respectively by the first inductance and second Inductance is corresponding with the two ends of described alternating current power supply or described AC load to be connected;First electric capacity, described first electric capacity is connected in parallel on institute Stating between the outfan of the first full-bridge circuit, wherein, when described vehicle-mounted charging device is in charge mode, described first controls Device is by controlling described first to fourth switching tube so that described first full-bridge circuit is operated in rectification state;Vehicle-mounted fill when described When electric installation is in inverter mode, described first controller by controlling described first to fourth switching tube so that described first complete Bridge circuit is operated in inverter mode.
According to one embodiment of present invention, described two-way DC/DC changer includes: be made up of the 5th to the 8th switching tube The second full-bridge circuit, the input of described second full-bridge circuit is connected with the outfan of described two-way AC/DC changer;Series connection The second electric capacity and the 3rd inductance, one end of described second electric capacity is connected with the first outfan of described second full-bridge circuit, institute One end of the other end and described 3rd inductance of stating the second electric capacity is connected, described second electric capacity and described 3rd inductance series connection after with First switch in parallel;Transformator, the first end of described transformator is connected with the other end of described 3rd inductance, described transformator Second end is connected with the second outfan of described second full-bridge circuit;3rd electric capacity of series connection and the 4th inductance, described 3rd electricity The one end held is connected with the 3rd end of described transformator, the other end of described 3rd electric capacity and one end phase of described 4th inductance Even, described 3rd electric capacity and described 4th inductance are in parallel with second switch after connecting;Closed what pipe was constituted by the 9th to twelvemo 3rd full-bridge circuit, the first input end of described 3rd full-bridge circuit is connected with the other end of described 4th inductance, and the described 3rd Second input of full-bridge circuit is connected with the 4th end of described transformator, and the outfan of described 3rd full-bridge circuit is dynamic with described Power battery is connected, and wherein, when described vehicle-mounted charge is in charge mode, described second controller controls described first switch and closes Close, and control described second switch and disconnect, and control described second full-bridge circuit and be operated in LLC state, and control described the Three full-bridge circuits are operated in rectification state;When described vehicle-mounted charging device is in inverter mode, described second controller controls Described second switch closes, and controls described first and switch off, and controls described 3rd full-bridge circuit and be operated in LLC shape State, and control described second full-bridge circuit and be operated in rectification state.
According to one embodiment of present invention, the vehicle-mounted charging device of above-mentioned electric automobile, also include: the first filtered electrical Road, described first filter circuit includes: common mode inductance, the first end of described common mode inductance and the second end and described alternating current power supply or The two ends correspondence of described AC load is connected, the 3rd end of described common mode inductance and the 4th end and described two-way AC/DC changer Input correspondence be connected;4th electric capacity, described 4th electric capacity is connected in parallel between the first end of described common mode inductance and the second end; 5th electric capacity, described 5th electric capacity is connected in parallel between the 3rd end and the 4th end of described common mode inductance.
According to one embodiment of present invention, the vehicle-mounted charging device of above-mentioned electric automobile, also include: the second filtered electrical Road, described second filter circuit includes: the 6th electric capacity, and described 6th electric capacity is connected in parallel on the output of described two-way DC/DC changer Between end.
According to an example of the present invention, described 3rd controller is additionally operable to: with the entire car controller of described electric automobile Communicate, to receive the described mode instruction that described entire car controller sends.
According to one embodiment of present invention, described 3rd controller by CAN (Controller Area Network, Controller local area network) communication mode communicates with the entire car controller of described electric automobile.
According to one embodiment of present invention, described 3rd controller passes through SPI (Serial Peripheral Interface, Serial Peripheral Interface), (Serial Communication Interface, serial communication connects for CAN, SCI Mouthful) or IIC (Inter-Integrated Circuit, IC bus) bus respectively with described first controller and institute State second controller to communicate.
According to one embodiment of present invention, between described 3rd controller and described first controller and described Isolate between three controllers and described second controller.
For reaching above-mentioned purpose, a kind of electric automobile that another aspect of the present invention embodiment proposes, it includes above-mentioned electricity The vehicle-mounted charging device of electrical automobile.
The electric automobile of the embodiment of the present invention, by the vehicle-mounted charging device of above-mentioned electric automobile, it is possible to realize total Wordization controls, and makes control circuit more simplify, and improves the motility of system, versatility and degree of intelligence, contributes to putting down The realization of platform and extension.
Aspect and advantage that the present invention adds will part be given in the following description, and part will become from the following description Obtain substantially, or recognized by the practice of the present invention.
Accompanying drawing explanation
Fig. 1 is the block diagram of the vehicle-mounted charging device of electric automobile according to an embodiment of the invention;
Fig. 2 is the most two-way AC/DC changer and the circuit diagram of two-way DC/DC changer;
Fig. 3 is the partial circuit diagram of the vehicle-mounted charging device of electric automobile according to an embodiment of the invention;And
Fig. 4 is the structural representation of the vehicle-mounted charging device of electric automobile according to an embodiment of the invention.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached The embodiment that figure describes is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
Describe the vehicle-mounted charging device of the electric automobile that the embodiment of the present invention proposes with reference to the accompanying drawings and there is it Electric automobile.
The block diagram of the vehicle-mounted charging device of Fig. 1 electric automobile according to an embodiment of the invention.As it is shown in figure 1, this electricity The vehicle-mounted charging device of electrical automobile includes: two-way AC/DC changer 100, two-way DC/DC changer 200 and control module 300.
Wherein, the input of two-way AC/DC changer 100 is connected with alternating current power supply or AC load;Two-way DC/DC converts The input of device 200 is connected with the outfan of two-way AC/DC changer 100, the outfan of two-way DC/DC changer 200 and electricity The electrokinetic cell of electrical automobile is connected;Control module 300 includes the first controller 310, second controller 320 and the 3rd controller 330, the first controller 310 is connected with two-way AC/DC changer 100, second controller 320 and two-way DC/DC changer 200 phase Even, the 3rd controller 330 with communicate with the first controller 310 and second controller 320 respectively, wherein, the 3rd controller Two-way AC/DC changer 100 is controlled by the first controller 310 according to the mode instruction that receives and passes through the by 330 Two-way DC/DC changer 200 is controlled by two controllers 320, so that by handing over when vehicle-mounted charging device is in charge mode Electrokinetic cell is charged by stream power supply, or passes through electrokinetic cell when vehicle-mounted charging device is in inverter mode to AC load Power supply.
Specifically, when the mode instruction that the 3rd controller 330 receives is charge mode, the 3rd controller 330 passes through Two-way AC/DC changer 100 is controlled by the first controller 310, is become two-way DC/DC by second controller 320 simultaneously Parallel operation 200 is controlled, and to realize the charge function of vehicle-mounted charging device, i.e. obtains energy from alternating current power supply (such as electrical network 220V) Amount, the high voltage power battery for electric automobile is charged;The mode instruction received when the 3rd controller 330 is inverter mode Time, two-way AC/DC changer 100 is controlled by the 3rd controller 330 by the first controller 310, and by the second control Two-way DC/DC changer 200 is controlled by device 320, realizing the inversion function of vehicle-mounted charging device, and will electric automobile The energy of high voltage power battery is converted into alternating current (if voltage is the alternating current of 220V) and is powered to AC load, or is The electrokinetic cell of other electric automobiles is charged, it is achieved that the mutual charging between car and car.
According to one embodiment of present invention, as shown in Figure 4, the 3rd controller 330 is additionally operable to the car load with electric automobile Controller communicates, to receive the mode instruction that entire car controller sends.
Specifically, the control of charging/inverter mode and the car load of vehicle-mounted charging device be mainly responsible for by the 3rd controller 330 Communication and connect confirm function, control guiding function, entire car controller enable vehicle-mounted charging device, vehicle-mounted charging device enable Entire car controller and the correlation function etc. of charge port electronic lock.
Wherein, the 3rd controller 330 can be communicated by the entire car controller of CAN communication mode with electric automobile.Separately Outward, the 3rd controller 330 can by SPI, CAN, SCI or iic bus respectively with the first controller 310 and second controller 320 communicate, and concrete communication mode can be any of which, does not limits.And, the 3rd controller 330 with Can also isolate between first controller 310 and between the 3rd controller 330 and second controller 320, and three Between controller the most altogether.I.e. saying, taking isolation to communicate between the first controller 310 and the 3rd controller 330, communication modes can To be SPI, CAN, SCI or IIC etc.;Isolation is taked to communicate between second controller 320 with the 3rd controller 330, communication party Formula can be SPI, CAN, SCI or IIC etc..
Therefore, the vehicle-mounted charging device of the embodiment of the present invention, use the design of " three core " microprocessor architecture design, it is achieved that two-way AC/DC changer, two-way DC/DC changer and the real-time monitoring and control with external function microprocessor, it is achieved thereby that The full-digital control of vehicle-mounted charging device so that control circuit more simplifies, and improve the motility of system, versatility And degree of intelligence, be analog control mode incomparable, and contribute to realization and the extension of hardware and software platform, for example, it is possible to Develop for follow-up ASIL (Automotive Safety Integrity Level, automotive safety integrity level) functional safety Reserved enough interfaces.Further, since employing 2 stage converter, including two-way AC/DC changer and two-way DC/DC changer, It is thus able to the efficiency of the system that is effectively improved, safety and reliability, reduces the Danger Electric shock risk of user.Additionally, work as alternating current power supply During for electrical network, the peak-valley difference of available electrical network, between electrical network and the electrokinetic cell of electric automobile, reasonably carry out energy conversion, Thus the effectively save society energy and user cost.
According to one embodiment of present invention, as in figure 2 it is shown, two-way AC/DC changer 100 includes: the first full-bridge circuit 110, the first inductance L1, the second inductance L2 and the first electric capacity C1, the first full-bridge circuit 110 is switched by the first switching tube Q1 to the 4th Pipe Q4 is constituted, and the first input end of the first full-bridge circuit 110 and the second input are respectively by the first inductance L1 and the second inductance L2 is corresponding with the two ends of alternating current power supply or AC load to be connected, and the first electric capacity C1 is connected in parallel on the outfan of the first full-bridge circuit 110 Between.Wherein, when vehicle-mounted charging device is in charge mode, the first controller 310 is by controlling the first switching tube Q1 to Four switching tube Q4 are so that the first full-bridge circuit 110 is operated in rectification state;When vehicle-mounted charging device is in inverter mode, first Controller 310 is by controlling the first switching tube Q1 to the 4th switching tube Q4 so that the first full-bridge circuit 110 is operated in inverter mode.
Specifically, the control to two-way AC/DC changer 100 is mainly responsible for by the first controller 310, including: to alternating current The detection of the voltage x current in source, the control to the first switching tube Q1 to the 4th switching tube Q4, the detection to DC bus-bar voltage with And the temperature detection etc. to the first switching tube Q1 to the 4th switching tube Q4, and, two-way AC/DC is also become by the first controller 310 Parallel operation 100 carries out overvoltage protection, under-voltage protection, overcurrent protection, short-circuit protection and overheat protector etc..Wherein, the first controller 310, by controlling the conducting sequential of the first switching tube Q1 to the 4th switching tube Q4, make the first full-bridge circuit 110 be operated in rectification State or inverter mode, the most also carry out PFC to the first full-bridge circuit 110, is possible not only to improve power factor, And conversion efficiency can be improved.
Further, as in figure 2 it is shown, two-way DC/DC changer 200 includes: second full-bridge circuit the 210, second electric capacity C2, 3rd inductance L3, the first switch K1, transformator T1, the 3rd electric capacity C3, the 4th inductance L4, second switch K2 and the 3rd full-bridge circuit 220.Wherein, the second full-bridge circuit 210 is made up of the 5th switching tube Q5 to the 8th switching tube Q8, the second full-bridge circuit 210 defeated Enter end to be connected with the outfan of two-way AC/DC changer 100;Second electric capacity C2 and the 3rd inductance L3 series connection, the second electric capacity C2's One end is connected with the first outfan of the second full-bridge circuit 210, the other end of the second electric capacity C2 and one end phase of the 3rd inductance L3 Even, in parallel with the first switch K1 after the second electric capacity C2 and the 3rd inductance L3 series connection;First end of transformator T1 and the 3rd inductance L3 The other end be connected, second end of transformator T1 and the second outfan of the second full-bridge circuit 210 are connected;3rd electric capacity C3 and Four inductance L4 series connection, one end of the 3rd electric capacity C3 is connected with the 3rd end of transformator T1, the other end and the 4th of the 3rd electric capacity C3 One end of inductance L4 is connected, in parallel with second switch K2 after the 3rd electric capacity C3 and the 4th inductance L4 series connection;3rd full-bridge circuit 220 Closed pipe Q12 by the 9th switching tube Q9 to twelvemo to constitute, the first input end of the 3rd full-bridge circuit 220 and the 4th inductance L4's The other end is connected, and the second input of the 3rd full-bridge circuit 220 is connected with the 4th end of transformator T1, the 3rd full-bridge circuit 220 Outfan be connected with electrokinetic cell.
Wherein, when vehicle-mounted charging device is in charge mode, second controller 320 controls the first switch K1 Guan Bi, and Control second switch K2 to disconnect, and control the second full-bridge circuit 210 is operated in LLC state, and control the 3rd full-bridge circuit 220 It is operated in rectification state;When vehicle-mounted charging device is in inverter mode, second controller 320 controls second switch K2 Guan Bi, And control the first switch K1 disconnection, and control the 3rd full-bridge circuit 220 is operated in LLC state, and control the second full-bridge circuit 210 are operated in rectification state.
Specifically, second controller 320 is mainly responsible for the control to two-way DC/DC changer 200, including: open the 5th Close pipe Q5 and close the control of pipe Q12, to the 3rd inductance L3 and the detection of the 4th inductance L4 electric current, to high voltage direct current to twelvemo The detection of current voltage, to the detection of electrokinetic cell voltage and the 5th switching tube Q5 to twelvemo is closed pipe Q12 temperature inspection Survey, and, second controller 320 also carries out overvoltage protection, under-voltage protection, overcurrent protection, short to two-way DC/DC changer 200 Road protection and overheat protector etc..
Wherein, second controller 320 is by controlling disconnection and the Guan Bi and the 5th of the first switch K1 and second switch K2 Switching tube Q5 to the 8th switching tube Q8, the 9th switching tube Q9 close the conducting sequential of pipe Q12 to twelvemo, it is achieved energy transmission side To control.Specifically, when electrokinetic cell is charged, second controller 320 by control first switch K1 close, Second switch K2 disconnects, and makes the 5th switching tube Q5 to the 8th switching tube Q8 be operated in LLC state, makes the 9th switching tube Q9 extremely simultaneously Twelvemo is closed pipe Q12 and is operated in synchronous rectification state;When electrokinetic cell supplying power for outside, second controller 320 is by controlling Second switch K2 Guan Bi, the first switch K1 disconnect, and make the 9th switching tube Q9 close pipe Q12 to twelvemo and are operated in LLC state, with Time make the 5th switching tube Q5 to the 8th switching tube Q8 be operated in synchronous rectification state.
Therefore, in an embodiment of the present invention, the 3rd controller is according to the mode instruction received, by the first controller Two-way AC/DC changer is controlled, and by second controller, two-way DC/DC changer is controlled, it is achieved be vehicle-mounted The charging of charging device and inversion function, be additionally, since LLC and be easily achieved ZVT and the Zero Current Switch of switching tube, The dominant loss being thus able to avoid switching tube is originated so that LLC reaches the highest efficiency.Further, since two-way DC/DC conversion Device is isolated by transformator, thus improves the safety of system, reliability, decreases the Danger Electric shock risk of user.
According to one embodiment of present invention, as it is shown on figure 3, the vehicle-mounted charging device of above-mentioned electric automobile also includes: First filter circuit 400.First filter circuit 400 includes: common mode inductance L5, the 4th electric capacity C4 and the 5th electric capacity C5, wherein, altogether First end of mould inductance L5 and the second end are corresponding with the two ends of alternating current power supply or AC load to be connected, the 3rd end of common mode inductance L5 Corresponding with the input of two-way AC/DC changer 100 with the 4th end being connected, the 4th electric capacity C4 is connected in parallel on the first of common mode inductance L5 Between end and the second end, the 5th electric capacity C5 is connected in parallel between the 3rd end and the 4th end of common mode inductance L5.By this filter circuit Can effectively remove unwanted harmonic wave in alternating current power supply or AC load, reduce the pulsation of electric current, make electric current more smooth.
Further, as it is shown on figure 3, the vehicle-mounted charging device of above-mentioned electric automobile also includes: the second filter circuit 500.Second filter circuit 500 includes: the 6th electric capacity C6, and the 6th electric capacity C6 is connected in parallel on the outfan of two-way DC/DC changer 200 Between, so that output voltage is more smooth.
Additionally, as it is shown on figure 3, the vehicle-mounted charging device of above-mentioned electric automobile also includes: protective tube F1 and varistor Z1, wherein, protective tube F1 is mainly used in the flow short-circuit of crossing of whole vehicle-mounted charging device and protects, and varistor Z1 is mainly used in overvoltage Protection.
It should be noted that in an embodiment of the present invention, the first to the 3rd controller can be MCU (Micro Controller Unit, micro-control unit), DSP (Digital Signal Processing, Digital Signal Processing) etc., One to twelvemo close pipe can be IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar crystal Pipe), MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor, partly lead by metal-oxide Body field-effect transistor) etc., the first to second switch can be relay, switching tube etc., does not limits.
In sum, the vehicle-mounted charging device of electric automobile according to embodiments of the present invention, control module include first to 3rd controller, the first controller is connected with two-way AC/DC changer, and second controller is connected with two-way DC/DC changer, the Three controllers communicate with the first controller and second controller respectively, and wherein, the 3rd controller is according to the pattern received Instruct and by the first controller two-way AC/DC changer be controlled and pass through second controller to two-way DC/DC changer It is controlled, so that electrokinetic cell being charged by alternating current power supply when vehicle-mounted charging device is in charge mode, or car Carry when charging device is in inverter mode and powered to AC load by electrokinetic cell, it is achieved thereby that full-digital control, make Control circuit more simplifies, and improves the motility of system, versatility and degree of intelligence, contribute to hardware and software platform realization and Extension.
Additionally, embodiments of the invention also proposed a kind of electric automobile, it includes that the vehicle-mounted of above-mentioned electric automobile is filled Electric installation.
The electric automobile of the embodiment of the present invention, by the vehicle-mounted charging device of above-mentioned electric automobile, it is possible to realize total Wordization controls, and makes control circuit more simplify, and improves the motility of system, versatility and degree of intelligence, contributes to putting down The realization of platform and extension.
In describing the invention, it is to be understood that term " first ", " second " are only used for describing purpose, and can not It is interpreted as instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " the One ", the feature of " second " can express or implicitly include at least one this feature.In describing the invention, " multiple " It is meant that at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing " etc. Term should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral;Can be that machinery connects Connect, it is also possible to be electrical connection;Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, in can being two elements The connection in portion or the interaction relationship of two elements, unless otherwise clear and definite restriction.For those of ordinary skill in the art For, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be in office One or more embodiments or example combine in an appropriate manner.Additionally, in the case of the most conflicting, the skill of this area The feature of the different embodiments described in this specification or example and different embodiment or example can be tied by art personnel Close and combination.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is example Property, it is impossible to being interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, revises, replaces and modification.

Claims (10)

1. the vehicle-mounted charging device of an electric automobile, it is characterised in that including:
Two-way AC/DC changer, the input of described two-way AC/DC changer is connected with alternating current power supply or AC load;
The outfan of two-way DC/DC changer, the input of described two-way DC/DC changer and described two-way AC/DC changer Being connected, the described outfan of two-way DC/DC changer is connected with the electrokinetic cell of described electric automobile;
Control module, described control module includes the first to the 3rd controller, the first controller and described two-way AC/DC changer Being connected, second controller is connected with described two-way DC/DC changer, the 3rd controller respectively with described first controller and described Second controller communicates, and wherein, described 3rd controller passes through described first controller according to the mode instruction received Described two-way AC/DC changer is controlled and by described second controller, described two-way DC/DC changer is controlled System, so that described electrokinetic cell being charged by described alternating current power supply when described vehicle-mounted charging device is in charge mode, Or power to described AC load by described electrokinetic cell when described vehicle-mounted charging device is in inverter mode.
2. the vehicle-mounted charging device of electric automobile as claimed in claim 1, it is characterised in that described two-way AC/DC changer Including:
The first full-bridge circuit being made up of first to fourth switching tube, the first input end of described first full-bridge circuit and second defeated Enter end to be connected by the first inductance and the second inductance are corresponding with the two ends of described alternating current power supply or described AC load respectively;
First electric capacity, described first electric capacity is connected in parallel between the outfan of described first full-bridge circuit, wherein,
When described vehicle-mounted charging device is in charge mode, described first controller is by controlling described first to fourth switch Pipe is so that described first full-bridge circuit is operated in rectification state;
When described vehicle-mounted charging device is in inverter mode, described first controller is by controlling described first to fourth switch Pipe is so that described first full-bridge circuit is operated in inverter mode.
3. the vehicle-mounted charging device of electric automobile as claimed in claim 1 or 2, it is characterised in that described two-way DC/DC converts Device includes:
The second full-bridge circuit being made up of the 5th to the 8th switching tube, the input of described second full-bridge circuit is two-way with described The outfan of AC/DC changer is connected;
First outfan of the second electric capacity of series connection and the 3rd inductance, one end of described second electric capacity and described second full-bridge circuit Being connected, the other end of described second electric capacity is connected with one end of described 3rd inductance, described second electric capacity and described 3rd inductance With the first switch in parallel after series connection;
Transformator, the first end of described transformator is connected with the other end of described 3rd inductance, the second end of described transformator with Second outfan of described second full-bridge circuit is connected;
3rd electric capacity of series connection and the 4th inductance, described one end of 3rd electric capacity is connected with the 3rd end of described transformator, described The other end of the 3rd electric capacity is connected with one end of described 4th inductance, with the after described 3rd electric capacity and described 4th inductance series connection Two switch in parallel;
Being closed, by the 9th to twelvemo, the 3rd full-bridge circuit that pipe is constituted, the first input end of described 3rd full-bridge circuit is with described The other end of the 4th inductance is connected, and described second input of the 3rd full-bridge circuit is connected with the 4th end of described transformator, institute The outfan stating the 3rd full-bridge circuit is connected with described electrokinetic cell, wherein,
When described vehicle-mounted charging device is in charge mode, described second controller controls described first switch Guan Bi, and controls Make described second switch to disconnect, and control described second full-bridge circuit and be operated in LLC state, and control described 3rd full-bridge electricity Road is operated in rectification state;
When described vehicle-mounted charging device is in inverter mode, described second controller controls described second switch Guan Bi, and controls Make described first to switch off, and control described 3rd full-bridge circuit and be operated in LLC state, and control described second full-bridge electricity Road is operated in rectification state.
4. the vehicle-mounted charging device of electric automobile as claimed in claim 1, it is characterised in that also include: the first filter circuit, Described first filter circuit includes:
Common mode inductance, the first end of described common mode inductance and the second end and described alternating current power supply or the two ends pair of described AC load Should be connected, the 3rd end of described common mode inductance and the 4th end are corresponding with the input of described two-way AC/DC changer to be connected;
4th electric capacity, described 4th electric capacity is connected in parallel between the first end of described common mode inductance and the second end;
5th electric capacity, described 5th electric capacity is connected in parallel between the 3rd end and the 4th end of described common mode inductance.
5. the vehicle-mounted charging device of electric automobile as claimed in claim 1, it is characterised in that also include: the second filter circuit, Described second filter circuit includes:
6th electric capacity, described 6th electric capacity is connected in parallel between the outfan of described two-way DC/DC changer.
6. the vehicle-mounted charging device of electric automobile as claimed in claim 1, it is characterised in that described 3rd controller is also used In: communicate with the entire car controller of described electric automobile, to receive the described mode instruction that described entire car controller sends.
7. the vehicle-mounted charging device of electric automobile as claimed in claim 6, it is characterised in that described 3rd controller passes through CAN communication mode communicates with the entire car controller of described electric automobile.
8. the vehicle-mounted charging device of electric automobile as claimed in claim 1, it is characterised in that described 3rd controller passes through SPI, CAN, SCI or iic bus communicate with described first controller and described second controller respectively.
9. the vehicle-mounted charging device of electric automobile as claimed in claim 8, it is characterised in that in described 3rd controller and institute State between the first controller and isolate between described 3rd controller and described second controller.
10. an electric automobile, it is characterised in that include the vehicle-mounted of electric automobile as claimed in any one of claims 1-9 wherein Charging device.
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