CN104638694B - Wireless charging system and method for electric automobile to electric automobile - Google Patents
Wireless charging system and method for electric automobile to electric automobile Download PDFInfo
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- CN104638694B CN104638694B CN201310558061.5A CN201310558061A CN104638694B CN 104638694 B CN104638694 B CN 104638694B CN 201310558061 A CN201310558061 A CN 201310558061A CN 104638694 B CN104638694 B CN 104638694B
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- H02J7/025—
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- 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
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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Abstract
The invention discloses a kind of wireless charging system and its control method for electric automobile to electric automobile, the system includes：Electric energy provides device, electric energy reception device and cell managing device, and cell managing device includes the first and second battery managers, and electric energy provides device and is used to transmit electric energy to electric energy reception device；The electric energy that electric energy reception device provides device offer using electric energy is the second power battery charging；First battery manager is used for the wireless charging flow for controlling electric energy to provide device；Second battery manager is used for the wireless charging flow for controlling electric energy reception device.Embodiments of the invention can realize wireless charging between electric automobile, have higher safety and reliability, and it is simple and easy to charge, and the service life of charging equipment can be improved by the way of wireless charging, has higher applicability.
Description
Technical field
The present invention relates to the power battery charging technical field of electric automobile, more particularly to a kind of electric automobile that is used for is to electricity
The wireless charging system and method for electrical automobile.
Background technology
With the continuous popularization of new-energy automobile, particularly electric automobile or hybrid vehicle, new-energy automobile with
Our daily life is increasingly related.Because current electric car is influenceed by battery electric quantity, course continuation mileage is restricted, difficult
To meet the trip requirements of user.Particularly when user drive vehicle after electricity has been lost in travelling way, electronic vapour
Car can not continue to travel, and influence the stroke of user.
Based on above mentioned problem, another electric car can be charged by an electric car so that electricity is relatively low
Electric car can obtain certain electricity, be charged so as to the charging station near reaching.At present between electric automobile
Mutual charging modes are mainly wired charging method, and the charging modes have following weak point：
First, the mobile carrying of charging equipment and the lead of high-voltage wiring harness are long, and manual operation is cumbersome.Existing connection
Equipment uses wired connection more, and charging every time is required for plug connection equipment.
Secondly as, easily there is excessive wear and the uneasiness of charging connection equipment in charging process in manual operation
The factors such as full property.Connection equipment plug when abrasion occurs, exposed high voltage component be present, this give charging system security,
Reliability brings certain influence, and shortens the service life of charging equipment.
The content of the invention
It is contemplated that at least solves one of above-mentioned technical problem to a certain extent.
Therefore, it is an object of the present invention to provide a kind of wireless charging system for electric automobile to electric automobile
System, the system can realize wireless charging between electric automobile, have higher safety and reliability, and it is simple and easy to charge,
In addition, the service life of charging equipment can be improved by the way of wireless charging, there is higher applicability.
It is another object of the present invention to propose a kind of wireless charging method for electric automobile to electric automobile.
To achieve the above object, the embodiment of first aspect present invention provides a kind of electric automobile that is used for electric automobile
Wireless charging system, including：Electric energy provides device, electric energy reception device and cell managing device, the cell managing device
Including the first battery manager and the second battery manager, wherein, the electric energy provides device and first battery manager
On the first electric automobile, the electric energy reception device and second battery manager are located on the second electric automobile, institute
Stating the first electric automobile has the first electrokinetic cell, and second electric automobile has the second electrokinetic cell, and the electric energy provides
Device, discharged for being sent when detecting the wireless communication signal of the electric energy reception device to first battery manager
Request, and the electric energy provide device enter electric discharge request stage and the electric energy reception device enter the charge request stage it
Afterwards, wireless discharge flow path is entered when first electrokinetic cell meets default discharging condition, with according to second power electric
The Information Pull electromagnetic induction in pond is to the electric energy reception device wirelessly transmitting electrical energy；The electric energy reception device, for institute
State electric energy device is provided and send the wireless communication signal and when receiving the electric energy and providing the feedback of device to described the
Two battery managers send charge request, and provide device in the electric energy and enter electric discharge request stage and electric energy reception
Device entered after the charge request stage, and wireless charging electric current is entered when second electrokinetic cell meets preset charged condition
Journey, using the electric energy provided from electric energy offer device arrived using wireless receiving as second power battery charging, and
The information of second electrokinetic cell is sent to the electric energy device is provided；First battery manager, for receiving
The electric discharge request that electric energy provides device transmission is stated, and is put according to the electric discharge request controls the electric energy offer device to enter
Electric request stage, and when judging that first electrokinetic cell meets the default discharging condition, control first power electric
Pond provides device transmission electric energy so that the electric energy provides device and enters the wireless discharge flow path to the electric energy；Described second
Battery manager, the charge request sent for receiving the electric energy reception device, and according to charge request control
Electric energy reception device enters the charge request stage, and meets the preset charged condition in judgement second electrokinetic cell
When, control the electric energy reception device to enter the wireless charging flow using dynamic as described second by the electric energy reception device
Power battery charges.
According to embodiments of the present invention is used for wireless charging system of the electric automobile to electric automobile, and electric automobile can be achieved
Between wireless charging, reduce manual operation, so as to improve electric automobile charging when safety and reliability, avoid
Plug the charging connection equipment attrition caused by charging equipment in wired charging method, connector service life of equipment declines etc.
Problem.When the distance of wireless charging between ensureing electric automobile is sufficiently small（If the distance of transmitting coil and receiving coil is in 200mm
In the range of when）, efficient electric energy transmission can be achieved.In addition, the mode of wireless charging is easy to operate, user only need to be according to instruction
Prompt operation button that wireless charging can be achieved.The real-time status that embodiments of the invention can be directed to electric automobile power battery is entered
The charging of row corresponding power, to improve the charge efficiency of electrokinetic cell and service life.In addition, by the system, disclosure satisfy that
User to the demand of charging electric vehicle, prevents electric automobile from influenceing user's because electricity exhausts in the process of moving out of doors
Stroke, improve the applicability of electric automobile.
The embodiment of second aspect of the present invention also proposed a kind of wireless charging side for electric automobile to electric automobile
Method, the electric automobile include：First electric automobile and the second electric automobile, electric energy is provided with first electric automobile and is carried
For device, the first battery manager and the first electrokinetic cell, electric energy reception device, second are provided with second electric automobile
Battery manager and the second electrokinetic cell, the described method comprises the following steps：The electric energy is controlled to provide device and the electric energy
Reception device establishes wireless telecommunications；After wireless telecommunications are established, the electric energy reception device is controlled to enter electric discharge request stage simultaneously
The electric energy reception device is controlled to enter the charge request stage；First battery manager judges that first electrokinetic cell is
It is no to meet default discharging condition and second battery manager judges whether second electrokinetic cell meets preset charged bar
Part；If it is, control first electrokinetic cell provides device transmission electric energy to the electric energy；The electric energy provides device root
According to the Information Pull electromagnetic induction of second electrokinetic cell to the electric energy reception device wirelessly transmitting electrical energy；The electric energy connects
Receiving apparatus charges to second electrokinetic cell.
According to embodiments of the present invention is used for wireless charging method of the electric automobile to electric automobile, and electric automobile can be achieved
Between wireless charging, reduce manual operation, so as to improve electric automobile charging when safety and reliability, avoid
Plug the charging connection equipment attrition caused by charging equipment in wired charging method, connector service life of equipment declines etc.
Problem.When the distance of wireless charging between ensureing electric automobile is sufficiently small（If the distance of transmitting coil and receiving coil is in 200mm
In the range of when）, efficient electric energy transmission can be achieved.In addition, the mode of wireless charging is easy to operate, user only need to be according to instruction
Prompt operation button that wireless charging can be achieved.The real-time status that embodiments of the invention can be directed to electric automobile power battery is entered
The charging of row corresponding power, to improve the charge efficiency of electrokinetic cell and service life.In addition, by this method, disclosure satisfy that
User to the demand of charging electric vehicle, prevents electric automobile from influenceing user's because electricity exhausts in the process of moving out of doors
Stroke, improve the applicability of electric automobile.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is to be used for signal of the electric automobile to the wireless charging system of electric automobile according to one embodiment of the invention
Figure；
Fig. 2 is to be used for knot of the electric automobile to the wireless charging system of electric automobile according to another embodiment of the present invention
Structure block diagram；
Fig. 3 is to be used for electric energy of the electric automobile to the wireless charging system of electric automobile according to one embodiment of the invention
Transfer principle figure；
Fig. 4 is to be used for electric automobile to the vehicle-mounted of the wireless charging system of electric automobile according to one embodiment of the invention
Wireless charging ECU charging and discharging principle schematic；
Fig. 5 is to be used for communication of the electric automobile to the wireless charging system of electric automobile according to one embodiment of the invention
Network diagram；
Fig. 6 is to be used for electric automobile to the first of the wireless charging system of electric automobile according to one embodiment of the invention
Electric automobile control of discharge flow chart；
Fig. 7 is to be used for electric automobile to the wireless charging system of electric automobile to the according to one embodiment of the invention
The control flow chart of two charging electric vehicles；And
Fig. 8 is to be used for flow of the electric automobile to the wireless charging method of electric automobile according to one embodiment of the invention
Figure.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the invention, " multiple " are meant that two or more,
Unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；It can be machine
Tool connects or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, can be two members
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it " under "
Can directly it be contacted including the first and second features, it is not directly to contact but pass through it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " to include first special
Sign is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " fisrt feature that includes are directly over second feature and oblique upper, or be merely representative of
Fisrt feature level height is less than second feature.
Below in conjunction with the accompanying drawing description wireless charging system for electric automobile to electric automobile according to embodiments of the present invention
System and method.Wherein, above-mentioned electric automobile can be pure electric automobile or mixed power electric car.
Fig. 1 is to be used for signal of the electric automobile to the wireless charging system of electric automobile according to one embodiment of the invention
Figure.Fig. 2 is to be used for structural frames of the electric automobile to the wireless charging system of electric automobile according to another embodiment of the present invention
Figure.
As depicted in figs. 1 and 2, the wireless charging according to an embodiment of the invention for electric automobile to electric automobile
System 100, including：Electric energy provides device 110, electric energy reception device 120 and cell managing device 130.Cell managing device 130
Including the first battery manager 131 and the second battery manager 132, wherein, electric energy provides the battery manager of device 110 and first
131 on the first electric automobile, and the battery manager 132 of electric energy reception device 120 and second is located on the second electric automobile, and
First electric automobile has the first electrokinetic cell, and the second electric automobile has the second electrokinetic cell.As a specific example,
First electrokinetic cell and the second electrokinetic cell can be vehicle mounted dynamic battery, refer to be arranged on electric automobile, are electric automobile
Power output and the energy storage device for other power supply for electrical equipment on car are provided, it can carry out charging repeatedly, voltage one
As be 12V or 24V.Wherein, above-mentioned electric automobile can be pure electric automobile or mixed power electric car.
Specifically, electric energy provides device 110 and is used for when detecting the wireless communication signal of electric energy reception device 120 to the
One battery manager 131 sends electric discharge request, and provides device 110 in electric energy and receive dress into electric discharge request stage and electric energy
Put 120 to enter after the charge request stage, wireless discharge flow path is entered when the first electrokinetic cell meets default discharging condition, with
According to the Information Pull electromagnetic induction of the second electrokinetic cell to the wirelessly transmitting electrical energy of electric energy reception device 120.Wherein, in the present invention
A specific example in, when the state-of-charge of the first electrokinetic cell is not present not less than the first preset value and the first electrokinetic cell
During failure, the first battery manager 131 judges that the first electrokinetic cell meets default discharging condition.Wherein, the first preset value is pre-
First set, as a specific example, the first preset value is, for example, but is not limited to 30%.
In one embodiment of the invention, after electric energy offer device 110 enters wireless charging flow, electric energy provides dress
Put 110 to be additionally operable to carry out self-test in real time and detect whether that communication failure occurs with electric energy reception device 120, if testing result
There is exception, then fed back to the first battery manager 131, the first battery manager 131 controls the first electrokinetic cell to stop
Electric discharge, to ensure the safety of charging process.
In another embodiment of the present invention, electric energy offer device 110 is additionally operable to the information according to the second electrokinetic cell
Judge to be suitable to the charge power that the second electrokinetic cell is charged, and transmitted with the charge power to electric energy reception device 120
Electric energy.Wherein, the information of the second electrokinetic cell for example includes but is not limited to：The current residual electricity of second electrokinetic cell, charging
Electric current, charge requirement power, highest single battery voltage, minimum single battery voltage, highest single battery temperature, minimum single-unit
Battery temperature and electrokinetic cell fault message etc..So, electric energy provides device 110 and can judge to fit according to the information of above-mentioned battery
In the charge power to be charged to the second electrokinetic cell, and with the charge power electric energy is transmitted to electric energy reception device 120.Change
Yan Zhi, i.e. electric energy provide device 110 can according to the current residual electricity of the second electrokinetic cell, charging current, charge requirement power,
Highest single battery voltage, minimum single battery voltage, highest single battery temperature, minimum single battery temperature and electrokinetic cell
Fault message, the suitable charge power of the second electrokinetic cell is judged, so as to be transmitted with the charge power to electric energy reception device 120
Electric energy to the second electrokinetic cell to charge, and so as to ensure the charge efficiency higher to the second electrokinetic cell, while ensures pair
The reliability and security of second power battery charging.
Electric energy reception device 120 is used to provide the transmission wireless communication signal of device 110 to electric energy and carried receiving electric energy
For device 110 feedback when to the second battery manager 132 send charge request, and electric energy provide device 110 enter put
Electric request stage and electric energy reception device 120 entered after the charge request stage, when the second electrokinetic cell meets preset charged bar
Enter wireless charging flow during part, to utilize what is received to provide the electric energy of the offer of device 110 as the second power electric from electric energy
Pond is charged, and the information of the second electrokinetic cell is sent to electric energy and provides device 110.Wherein, specifically show at one of the present invention
In example, when the state-of-charge of the second electrokinetic cell is not higher than the second preset value and failure is not present in the second electrokinetic cell, second
Battery manager 132 judges that the second electrokinetic cell meets preset charged condition.Wherein, the second preset value is to preset, as
One specific example, the second preset value are, for example, but are not limited to 70%.
In one embodiment of the invention, after electric energy reception device 120 enters wireless charging flow, electric energy receives dress
Put 120 to be additionally operable to carry out self-test in real time and detect whether that providing device 110 with electric energy occurs communication failure, if testing result
There is exception, then fed back to the second battery manager 132, the second battery manager 132 controls the second electrokinetic cell to stop
Charging, to ensure the safety of charging process.
First battery manager 131 is used to receive the electric discharge request that electric energy provides the transmission of device 110, and please according to the electric discharge
Ask control electric energy to provide device 110 and enter electric discharge request stage, and when judging that the first electrokinetic cell meets default discharging condition,
Control the first electrokinetic cell to provide electric energy in device 110 to power so that electric energy provides device 110 and enters wireless discharge flow path.Enter one
Step ground, the first battery manager 131 are additionally operable in wireless charging flow when receiving discharge off instruction or judge that first is dynamic
When power battery does not meet default discharging condition or electric energy reception device 120 and failure be present, the first electrokinetic cell of control stops to electricity
Device 110 can be provided electric energy is provided, to ensure the reliability of charging process and security.
In addition, in one embodiment of the invention, after electric energy offer device 110 enters wireless discharge flow path, first
Battery manager 131 is additionally operable to detecting that the first electrokinetic cell breaks down and the failure is former for the one-level of the first electrokinetic cell
During barrier, control electric energy provides the electric energy that device 110 to electric energy reception device 120 limit power and transmitted, further, if should
When failure is the secondary failure of the first electrokinetic cell, then the first battery manager 131 controls the first electrokinetic cell to stop electric discharge, with
Ensure the safety of charging equipment.
Second battery manager 132 is used for the charge request for receiving the transmission of electric energy reception device 120, and please according to the charging
Control electric energy reception device 120 is asked to enter the charge request stage, and when judging that the second electrokinetic cell meets preset charged condition,
Control electric energy reception device 120 enter wireless charging flow with by electric energy reception device 120 for the second power battery charging.Enter
One step, the second battery manager 132 are additionally operable in wireless charging flow when receiving charging termination instruction or the second power
Battery does not meet preset charged condition or controls the second electrokinetic cell to stop charging when electric energy reception device 120 has failure, with
Ensure the reliability and security of charging process.
In addition, in one embodiment of the invention, after electric energy reception device 120 enters wireless charging flow, second
Battery manager 132 is additionally operable to detecting that the second electrokinetic cell breaks down and the failure is former for the one-level of the second electrokinetic cell
During barrier, control electric energy reception device 120 provides device 110 to electric energy and sends limit power transmission instruction, so that electric energy provides device
110 electric energy for electric energy reception device 120 limit power transmit, further, if the failure is the second electrokinetic cell
Secondary failure, then the second electrokinetic cell of the second battery manager 132 control stopping charging, to ensure the safety of charging equipment.
Sum it up, in the above examples, cell managing device 130 have vehicle mounted dynamic battery is carried out temperature sampling,
Voltage sample, the function of being sampled to power battery charging and discharge current, have the function of calculating battery dump energy, and can lead to
The electric component that CAN communication bundle of lines control signal is sent to correlation is crossed, to realize the management to battery functi on.
With reference to shown in Fig. 1, Fig. 2 and Fig. 3, the embodiment of the present invention is used for wireless charging system of the electric automobile to electric automobile
System 100, in addition to：First high-tension distribution box 140 and the second high-tension distribution box 150.Wherein, the first high-tension distribution box 140 passes through
High-voltage wiring harness provides device 110, the first electrokinetic cell and the first battery manager 131 with electric energy respectively and electrically connected, the first high pressure
Distribution box 140 is controlled by the first battery manager 131, to control the conducting of wireless discharge loop and disconnection；Second high voltage power distribution
Case 150 is electrically connected with electric energy reception device 120, the second electrokinetic cell and the second battery manager 132 respectively by high-voltage wiring harness,
Second high-tension distribution box 150 is controlled by the second battery manager 132, to control the conducting in wireless charging loop and disconnection.Wherein,
As a specific example, the first high-tension distribution box 140 and the second high-tension distribution box 150 are the height of a break-make high current
Multiple contactors are contained in voltage device, its inside, and the first battery manager 131 is by sending control signal to the first high-tension distribution box
140, and the second battery manager 132 is by sending control signal to the second high-tension distribution box 150, its controllable internal relay
The closure of device and shut-off, so as to reach the purpose of control high current break-make, that is, control high-voltage radio charge and discharge loop（Such as by
The loop of vehicle mounted dynamic battery power supply）Conducting and disconnection.Battery is being received as specific example, such as high-tension distribution box
After the wireless charging contactor pickup signal that managing device sends over, the wireless charging contactor inside high-tension distribution box is inhaled
Close, wireless charging loop conducting, charging starts.At the end of charging, cell managing device sends wireless charging contactor and disconnects letter
Number, then the wireless communication charging contactor inside high-tension distribution box disconnects, and wireless charging loop disconnects.
With reference to Fig. 1 to Fig. 4, the embodiment of the present invention is used for electric automobile to the wireless charging system 100 of electric automobile
Operation principle is according to electromagnetic induction principle, passes through the primary winding on the first electric automobile（That is transmitting coil）To mounted in
Secondary coil on second electric automobile（That is receiving coil）Electric energy is transmitted, to realize the battery to the second electric automobile（I.e.
Second electrokinetic cell）Charged.In order to realize wireless charging, it must install and match somebody with somebody on the first electric automobile and the second electric automobile
The equipment of set, transmitting terminal（Electric energy provides device 110）With receiving terminal（Electric energy reception device 120）Between pass through home control network communication protocol
Information exchange is carried out, the content of communications protocol includes identification, battery information, charging control signal and fault-signal etc..Electricity
Charge transmitting end equipment on electrical automobile（Electric energy provides device 110）Neighbouring receiving terminal can be detected（Electric energy reception device
120）.
What deserves to be explained is wireless charging device is needed with monitoring and defencive function, to whole system in charging process
The abnormal conditions of appearance are handled.Wireless charging mode also needs to the criterion of clear and definite charging complete, to prevent stopping power electricity
Pond overcharge.Wireless charging system is able to record charge information.
Further, as shown in Figures 1 to 4, electric energy provides device 110 and mainly included：Frequency up converter 111, the first nothing
Line communication module 112（Not shown in figure）, first detection module 113（Not shown in figure）, transmitting coil 114 and first control mould
Block.
Wherein, frequency up converter 111 is used to the high voltage direct current provided from the first electrokinetic cell being converted to default frequency
The alternating current of rate, predeterminated frequency are preset according to the actual requirements.
First wireless communication module 112 is used to communicate wirelessly with electric energy reception device 120, specifically shows as one
Example, the first wireless communication module 112 for example can carry out information exchange by home control network communication protocol and electric energy reception device 120,
The content of communications protocol for example including：Battery information, charging control signal and safeguard protection signal etc..
First detection module 113 is used to provide electric energy the progress fault detect of device 110.Specifically, in charging process
Charging equipment is needed with monitoring and defencive function, to handle the abnormal conditions that whole system occurs.I.e. electric energy provides
Device 110 has intelligent monitoring function and communication function.Such as：The self-test for providing electric energy device 110 passes through the first detection mould
Block 113 is realized, and electric energy provides device 110 and the communication of electric energy reception device 120 can be real by the first wireless communication module 112
It is existing, wherein, the first wireless communication module 112 can use the Radio Transmission Technologys such as bluetooth, infrared or ZigBee to realize.
Transmitting coil 114 is used in the form of electromagnetic field launching alternating current to electric energy reception device 120, specifically,
A range of alternating magnetic field can be produced when passing through alternating current in transmitting coil 114 around it.
First control module is used to detect mould to above-mentioned frequency up converter 111, the first wireless communication module 112, first
Block 113 and transmitting coil 114 are controlled.
Also include in addition, electric energy provides device 110：First connector 116, electric energy provide device 110 and patched by first
Part 116 is communicated with the first battery manager 131.More specifically, electric energy offer device 110 passes through the first connector 116
With CAN communication breath line, self-test signal line, the fault-signal line of the first battery manager 131, and corresponding low-voltage power supply electricity
Source line is connected, for being communicated with multiple parts on the first electric automobile.Including the first battery manager 131
CAN communication signal wire, self-test signal line and fault-signal line, and low-voltage power supply line.
Electric energy reception device 120 mainly includes：Receiving coil 121, the second wireless communication module 122, the second detection module
123rd, rectifier 124, the control module 126 of dc-dc 125 and second.
Wherein, it is next to receive to be used for the generation induced-current in alternating magnetic field caused by transmitting coil 114 for receiving coil 121
The electric energy of spontaneous emission coil 114.In other words, i.e., when transmitting coil 114 produces alternating magnetic field, as long as receiving coil 121 is close
In the surrounding certain limit of transmitting coil 114, based on electromagnetic induction principle, receiving coil 121 can produce induced-current, so as to connect
Receive the electric energy in transmitting coil 114.
Second wireless communication module 122 is used to communicate wirelessly with electric energy offer device 110.That is the second wireless telecommunications mould
Block is arranged to the first wireless communication module and is adapted.As a specific example, the second wireless communication module 122 for example can be with
There is provided device 110 by home control network communication protocol and electric energy and carry out information exchange, the content of communications protocol for example including：Battery is believed
Breath, charging control signal and safeguard protection signal etc..
Second detection module 123 is used to carry out fault detect to electric energy reception device 120.Detect electric energy reception device
120 be failure etc. be present, and detection information etc. can be sent into electric energy reception device 110.Specifically, charged in charging process
Equipment is needed with monitoring and defencive function, to handle the abnormal conditions that whole system occurs.
Rectifier 124 is used to the alternating current from receiving coil 121 being converted to direct current.
Dc-dc 125 is used to carry out voltage conversion to the direct current provided from rectifier 124（Such as boosting or
Decompression）It is the second power battery charging afterwards, to meet voltage requirements during the second power battery charging.
Second control module 126 is used to detect mould to above-mentioned receiving coil 121, the second wireless communication module 122, second
Block 123, rectifier 124 and dc-dc 125 are controlled.Wherein, including：Second control module 126 is according to the second power
The information of battery and the power output of charge power demand modeling dc-dc 125, with meet the second power battery charging when
Power demand, so as to improve charge efficiency, it is ensured that reliability and security during the second power battery charging.
Further, electric energy reception device 120 also includes：Second connector 127.Electric energy reception device 120 passes through second
Connector 127 is communicated with the second battery manager 132.More specifically, electric energy reception device 120 passes through the second connector
127 and second battery manager 132 CAN communication breath line, self-test signal line, fault-signal line, and corresponding low pressure supplies
Electric power line is connected, for being communicated with multiple parts on the second electric automobile.
In one particular embodiment of the present invention, electric energy offer device 110 is located on the second electric automobile and electric energy connects
Receiving apparatus 120 is located on the first electric automobile.In other words, i.e., electric energy offer device 110 can also be used as electric energy reception device
Electric energy is received, electric energy reception device 120 can also provide the mean to send electric energy as electric energy.Further, transmitting coil 114
Receiving coil can also be used as to receive electric energy, receiving coil 121 can also be used as transmitting coil to launch electric energy.
As a specific example, this is used for electric automobile to the wireless charging system 100 of electric automobile at work
Mainly supported the use by charge control strategy with wireless charging system, to realize the wireless charging between electric automobile.Wherein,
Charge control strategy mainly describes the concrete operations flow to vehicle mounted dynamic battery charging, and wireless charging system mainly wraps
Include the onboard wireless charging ECU on electric car（I.e. electric energy provides a part for device or electric energy reception device）, coil,
Cell managing device, vehicle mounted dynamic battery, high-tension distribution box and instrument etc..It should be noted that vehicle must be in dead ship condition
Lower just to allow to charge, vehicle mounted dynamic battery must meet that the condition of wireless charging just allows to carry out wireless charging, and two electricity
Needed between Wireless charging coil on electrical automobile close proximity to charge efficiency can be improved.In addition, wireless charging need to be passed through by user
Electric switch button decides whether to charge, and charging modes are wireless charging, and wireless charging system has perfect safety monitoring
Function, and can be according to on-vehicle battery state change charge power.During wireless charging, onboard wireless charging ECU has two kinds
Mode of operation：One kind is discharge mode, and one kind is charge mode.Onboard wireless charging ECU mode of operations on two electric cars
Must be mutually matched could carry out wireless charging；After the completion of matching, onboard wireless charging ECU no longer responds other electric cars
Wireless charging is asked, until wireless charging terminates.As a specific example, when onboard wireless charging ECU is operated in electric discharge
During state, i.e., when carrying out wireless charging to another electric car, discharge loop is：Vehicle mounted dynamic battery --- high voltage power distribution
Case --- down-conversion circuitry --- coil --- external coil, you can gone out the charge transport of vehicle mounted dynamic battery by coil
Go.When onboard wireless charging ECU is operated in charged state, that is, when receiving the electricity that another electric car transmits, then fill
Electrical circuit is：--- --- --- DC-DC change-over circuits --- high-tension distribution box --- are vehicle-mounted for rectification circuit for coil for external coil
Electrokinetic cell, you can the electricity transmitted from another electric car is received by coil, charged to vehicle mounted dynamic battery.
Wherein, it above-mentioned onboard wireless charging ECU, can communicate wirelessly, and can realize with neighbouring wireless charging ECU
CAN communication is carried out with the other related equipment on car.Wireless charging ECU both can be by coil vehicle mounted dynamic battery electricity
Transfer out, charged to an other electric car, the electricity that outside electric car hair transmits can also be received by coil, is given
Vehicle mounted dynamic battery charges.In addition, wireless charging ECU can change power output, to vehicle-mounted according to the charge power demand of vehicle
Power battery charging.
Above-mentioned cell managing device, which has, to carry out temperature sampling, voltage sample to vehicle mounted dynamic battery, electrokinetic cell is filled
Electricity and the function of discharge current sampling, have the function of calculating battery dump energy, and can pass through CAN communication bundle of lines control signal
The electric component of correlation is sent to, to realize the management to battery functi on.
Vehicle mounted dynamic battery refers to be arranged on electric car, provides power output for electric car and is other electricity consumptions on car
The energy storage device of equipment power supply, can be charged repeatedly.
High-tension distribution box is the high tension apparatus of a break-make high current, and multiple contactors, battery management dress are contained in its inside
Put by sending control signal to high-tension distribution box, can control closure and the shut-off of its internal relay, filled so as to reach control
The purpose of electrical circuit break-make.
In addition, in wireless charging system, cell managing device is connected with onboard wireless charging ECU by CAN lines.It is vehicle-mounted
Wireless charging ECU is connected by high-voltage wiring harness with high-tension distribution box.High-tension distribution box passes through high-voltage wiring harness and vehicle mounted dynamic battery
Connection.Wireless charging ECU is connected with coil by high-voltage wiring harness.Wireless charging ECU carries a low pressure connector, and its effect is
Communicated with the parts on electric car, including the CAN communication signal wire with cell managing device, self-test signal line and
Fault-signal line, and low-voltage power supply line.
The charging of user confirms to be realized by wireless charging shift knob.The wireless charging shift knob by user's control,
Wireless charging shift knob is divided into two by function difference, and one is discharge mode button, and one is charge mode button.Electric discharge
After mode button is pressed, electric automobile externally discharges, to another charging electric vehicle；After charge mode button is pressed, it is then
The electricity that outside electric car transmits is received, is charged to vehicle mounted dynamic battery.
This wireless charging shift knob is pressed when wireless charging prompting occurs in instrument, then the wireless charging of two electric cars
ECU proceeds by matching（Launch and receive the process of wireless communication signal）If the match is successful, charging starts.Wireless
In charging process, as long as just thering is an electric car to press wireless charging shift knob in two electric cars of wireless charging, then
Charging terminates.Cell managing device detects this switching signal.
Stopping for charging refers to that vehicle hangs over P shelves or N shelves, and other high voltage electric equipment of vehicle can also work simultaneously, except electricity
Beyond machine.During wireless charging, the change of gear signal is not responding to.
As shown in figure 5, the embodiment of the present invention is used for electric automobile to the whole of the wireless charging system 100 of electric automobile
Wireless charging communication network mainly includes 2 networks, and one is the wireless charging system communication network on the first electric automobile, another
Individual is the wireless charging system communication network on the second electric automobile.Wherein, the wireless charging system on each electric automobile leads to
Interrogating network includes Power Environment Monitoring Network, comfortable net, battery subnet, wireless charging subnet and onboard wireless charging net.Wherein, onboard wireless
Charge ECU-A（I.e. electric energy provides device）（I.e. electric energy provides device）On the first electric automobile, onboard wireless charging
ECU-B（That is electric energy reception device）（That is electric energy reception device）On the second electric automobile, and onboard wireless charging ECU-A
（I.e. electric energy provides device）Including：Frequency up converter 111, the control module of transmitting coil 114 and first.Onboard wireless charging ECU-
B（That is electric energy reception device）Including：Receiving coil 121, rectifier 124, the control module 126 of dc-dc 125 and second.
Specifically, battery subnet is mainly the communication network between battery information collector and cell managing device 130, is led to
News speed could be arranged to 250kbps, and battery information collector gathers the voltage and temperature information of vehicle mounted dynamic battery, and passes through
Battery subnet is sent to cell managing device 130, and cell managing device 130 collects vehicle mounted dynamic battery information, carries out corresponding position
Reason.
Wireless charging subnet is mainly onboard wireless charging ECU-A（I.e. electric energy provides device）With onboard wireless charging ECU-
B（That is electric energy reception device）Between communication network, onboard wireless charging ECU-B（That is electric energy reception device）Filled to onboard wireless
Electric ECU-A（I.e. electric energy provides device）Vehicle mounted dynamic battery B current state information, and charge power demand are sent, it is vehicle-mounted
Wireless charging ECU-A（I.e. electric energy provides device）According to the battery information received, corresponding adjustment is done.Onboard wireless charges
ECU-A（I.e. electric energy provides device）Charge capacity is calculated, and is sent to onboard wireless charging ECU-B（That is electric energy reception device）.
Onboard wireless charging ECU-A（I.e. electric energy provides device）With onboard wireless charging ECU-B（That is electric energy reception device）Between carry out
Wireless telecommunications.
Onboard wireless charging net is primarily referred to as the communication network between cell managing device 130 and onboard wireless charging ECU.
Cell managing device 130 is communicated by CAN lines and onboard wireless charging ECU, and the speed of communication may be configured as 250kbps,
Cell managing device 130 sends battery status information to onboard wireless charging ECU in real time, when onboard wireless charges ECU failures,
Cell managing device receives the fault-signal that onboard wireless charging ECU is sent, and stops wireless charging.
Power Environment Monitoring Network is mainly the communication network between on-board high-voltage device, when wireless charging is carried out, speed zero, and vehicle
In N shelves or P shelves, cell managing device 130 sends wireless charging signal and gives other high-tension apparatuses, to coordinate wireless charging
Carry out.Such as signal is sent to electric machine controller, forbid power of motor to export.
If comfortable host's cell managing device 130 is to the communication network between instrument, wireless in order to be shown in instrument
Charge indication signal, and instrument wireless charging switching signal is sent to cell managing device 130 by instrument, as opening for wireless charging
Dynamic and stop signal.
With reference to shown in Fig. 6 and Fig. 7, with electric automobile A（That is the first electric automobile）To electric automobile B（I.e. second electronic vapour
Car）Exemplified by carrying out wireless charging, electric automobile is used for the wireless charging system 100 of electric automobile to the embodiment of the present invention
Charging strategy is described.The charging strategy of the wireless charging system 100 is specific as follows：
First, under normal circumstances, high-tension electricity on electric car, it is wireless on car after static when electric car extension P shelves or N shelves
The ECU that charges starts working, and whether has wireless charging device every 1S detection du vehicules, if being not detected by wireless charging in 30S
Electric equipment, then wireless charging ECU be stopped.If detecting nearby there is wireless charging device, sent to cell managing device
Wireless charging is asked.
Onboard wireless charges ECU to cell managing device transmission wireless charging request signal, and cell managing device, which is sent, to be filled
To instrument, instrument prompts the user whether to need to carry out wireless charging electric request signal.If instrument prompts wireless charging request signal
In 30S, user does not press the wireless charging button on instrument desk, then instrument, which is shown, forbids wireless charging.If press electric car A
On discharge mode button, and press the charge mode button on electric car B, wireless charging ECU-A（I.e. electric energy provides device）
（I.e. electric energy provides device）With wireless charging ECU-B（That is electric energy reception device）（That is electric energy reception device）Confirm working condition,
The match is successful.If electric car A and electric car B is simultaneously charge mode, or is simultaneously discharge mode, then match it is unsuccessful, no
Wireless charging can be carried out.If the match is successful by the wireless charging ECU of two electric cars, it is no longer responded during wireless charging
The wireless charging request of its electric car.
After the match is successful, for electric car A, the first battery manager A first detects vehicle mounted dynamic battery A SOC（Remaining electricity
Amount）Whether be less than 30%, as dump energy be less than 30%, then the first battery manager A be not responding to wireless charging ECU-A（That is electric energy
Device is provided）Charge request, forbid wireless charging.For electric car B, the second battery manager B first detects onboard power electricity
Pond B SOC（Dump energy）Whether be more than 70%, as dump energy be more than 70%, then the second battery manager B be not responding to wireless charging
Electric ECU-B（That is electric energy reception device）Charge request, forbid wireless charging.
If vehicle mounted dynamic battery A dump energies are more than 30%, and vehicle mounted dynamic battery B dump energies are less than 70%, then electric
Pond managing device detection vehicle mounted dynamic battery whether there is failure, including electrokinetic cell monomer temperature is too high, electrokinetic cell monomer
Overtension, electrokinetic cell electric leakage, the disconnection of electrokinetic cell sampling line, cell managing device and battery information collector communication failures
Etc. failure, if there is above-mentioned failure, then forbid wireless charging.Cell managing device sends alarm signal and shown to instrument, instrument
Show and forbid wireless charging.
If the electrokinetic cell fault-free of cell managing device detection, control signal is sent to high-tension distribution box, control
Wireless charging contactor adhesive, cell managing device send a signal to instrument, and instrument shows wireless charging indicator lamp, into wireless
Charging flow.
Wireless charging contactor is arranged on inside high-tension distribution box, and it functions as onboard wireless charging ECU high-tension electricities
The switch that road part is connected with vehicle mounted dynamic battery.
Into after wireless charging flow, the second battery manager B sends electrokinetic cell B battery information and charge power please
Ask and give wireless charging ECU-B（That is electric energy reception device）, onboard wireless charging ECU-B（That is electric energy reception device）Send the information
Give wireless charging ECU-A（I.e. electric energy provides device）.Wireless charging ECU-A（I.e. electric energy provides device）After receiving the information,
Regulation charging power output, passes through the outside transmission energy of coil.Wireless charging ECU-B（That is electric energy reception device）Connect by coil
The energy from electric car A is received, vehicle mounted dynamic battery B is charged.It is current that the battery information wherein sent includes power battery pack B
Dump energy, charging current, charge power highest single battery voltage, minimum single battery voltage, highest single battery temperature,
Minimum single battery temperature, and electrokinetic cell fault message.
Wireless charging ECU-A（I.e. electric energy provides device）Detect whether wireless charging device is deposited always during charging
In exception, the content of detection includes coil fault, wireless charging ECU output abnormalities and wireless charging ECU communication failures；Wireless charging
Electric ECU-B（That is electric energy reception device）Then detection coil failure, DC-DC translation exceptions and wireless charging ECU communication failures.If deposit
In as above various failures, then wireless charging ECU transmissions charging termination request signal is to cell managing device.Cell managing device connects
Disconnection of wireless charging contactor after this information is received, stops wireless charging, and send charge fault signal and shown to instrument, instrument
Wireless charging device failure.Wireless charging ECU-A simultaneously（I.e. electric energy provides device）With wireless charging ECU-B（I.e. electric energy receives
Device）Mutually send fault message.
During wireless charging, cell managing device detects vehicle mounted dynamic battery information always, and the content of detection includes moving
Whether power battery temperature is too high, whether electrokinetic cell voltage is too high, whether charging current is excessive, whether battery information collector is deposited
In failure.Temperature of powered cell is too high, electrokinetic cell overtension and charging current cross major break down should a point situation handled, can
It is divided into level fault and secondary failure.When level fault occurs for vehicle mounted dynamic battery A（General alarm）When, the first battery manager
A sends limit power charge information and gives wireless charging ECU-A（I.e. electric energy provides device）, wireless charging ECU-A（I.e. electric energy provides dress
Put）Current charge power is reduced, and sends fault message and gives wireless charging ECU-B（That is electric energy reception device）, carry out limit power
Charging.When level fault occurs for vehicle mounted dynamic battery B（General alarm）When, the second battery manager B sends limit power charging letter
Cease and give wireless charging ECU-B（That is electric energy reception device）, wireless charging ECU-B（That is electric energy reception device）Send the information to nothing
Micro USB electricity ECU-A（I.e. electric energy provides device）, wireless charging ECU-A（I.e. electric energy provides device）Current charge power is reduced, is entered
Row limit power charging.If generation secondary failure（Serious alarm）, or battery information collector failure, then cell managing device break
Wireless charging loop is opened, wireless charging terminates.
During wireless charging, cell managing device detection battery whether charging complete.For electric car B, when SOC is
When 100%, or user presses charge mode shift knob, then wireless charging is completed, and the second battery manager B sends control letter
Number give high-tension distribution box B, disconnection of wireless charging contactor.Meanwhile first battery manager A send charge completion information to wireless
Charge ECU-B（That is electric energy reception device）, wireless charging ECU-B（That is electric energy reception device）Charging completion signal is retransmited to nothing
Micro USB electricity ECU-A（I.e. electric energy provides device）, wireless charging ECU-A（I.e. electric energy provides device）Stop to wireless charging ECU-B
（That is electric energy reception device）Transmission energy.For electric car A, then when SOC is less than 20%, the first battery manager A sends vehicle-mounted
Electrokinetic cell not enough power supply information gives wireless charging ECU-B（That is electric energy reception device）, and disconnection of wireless charging contactor；User
After pressing charge mode shift knob, then wireless charging is completed.
During wireless charging, the first battery manager A is dynamic all the time by detection electrokinetic cell A charging currents and collection
Power battery A voltages, calculate power battery charging electricity, be sent to instrument A in order to show, at the same send charge capacity information to
Wireless charging ECU-A（I.e. electric energy provides device）, wireless charging ECU-A（I.e. electric energy provides device）Send charge capacity information to
Wireless charging ECU-B（That is electric energy reception device）, wireless charging ECU-B（That is electric energy reception device）Send the information to the second electricity
Pool manager B, the second battery manager B retransmits charge capacity signal and gives instrument B, in order to show.
During wireless charging, vehicle is not responding to gear switch, and cell managing device sends wireless charging status information
To electric machine controller, the output of motor inactivity.After wireless charging terminates, cell managing device sends charging ending message to electricity
Machine controller, it is allowed to normal vehicle operation.
Specifically, as shown in fig. 6, to be used for nothing of the electric automobile to electric automobile according to one embodiment of the invention
First electric automobile control of discharge flow chart of micro USB electric system, comprises the following steps：
Step S601：Electric automobile A（That is the first electric automobile）Upper high-tension electricity.I.e. the first electric automobile travels.
Step S602：Travel to electric car B（Second electric automobile）After side is static, vehicle searches neighbouring wireless charging
ECU signals.That is the first electric automobile detects the process of the wireless communication signal of the second electric automobile.
Step S603：Judge onboard wireless charging ECU-A（I.e. electric energy provides device）（It is arranged on electric automobile A）Whether
Detect wireless charging device signal.In other words, that is, judge that the electric energy of the first electric automobile provides whether device detects second
The wireless communication signal that electric automobile is sent.
Step S604：Judge whether the stand-by period is not detected by more than 30S and also wireless charging device.If it is, hold
Row step S616, otherwise perform step S605.Judge that electric energy provides whether device detects wireless telecommunications in preset time
Signal.
Step S605：Onboard wireless charging ECU-A（I.e. electric energy provides device）To the first battery manager A（I.e. first electricity
Pool manager）Send wireless electric discharge request signal.I.e. electric energy provides device and electric energy reception device is detected in preset time
After wireless communication signal, electric energy provides device and asked to the transmission electric discharge of the first battery manager.
Step S606：First battery manager A sends a signal to instrument A（Instrument i.e. on electric automobile A）, instrument A carries
Show whether user needs wirelessly to discharge.I.e. now electric energy provides device and is in electric discharge request stage.
Step S607：Judge whether user presses discharge mode button, if it is, performing step S609, otherwise perform
Step S608.
Step S608：Before user does not press discharge mode button, whether the stand-by period is judged more than 30S, if it is,
Step S616 is performed, otherwise returns and performs step S607.
In other words, that is, judge that electric energy provides whether device receives the information for allowing electric discharge in preset time.
Step S609：Wireless charging ECU-A（I.e. electric energy provides device）To wireless charging ECU-B（That is electric energy reception device）
Send discharge mode status information.User presses discharge mode button i.e. in preset time, then judges that electric energy provides device and connect
Receiving allows the information of electric discharge, and electric energy provides device and enters discharge mode, and feeds back its discharge mode shape to electric energy reception device
State information.
Step S610：The match is successful for wireless charging.I.e. now electric energy provide device and electric energy reception device without lines matching into
Work(.
Step S611：No longer respond the wireless charging request of other electric automobiles.I.e. when electric energy provides device and electric energy connects
For receiving apparatus after wirelessly the match is successful, both of which no longer responds the wireless charging request of other automobiles.
Step S612：Wireless charging ECU-A（I.e. electric energy provides device）It is operated in discharge mode.I.e. electric energy is provided at device
In discharge mode.
Step S613：First battery manager A detection vehicle mounted dynamic batteries A SOC（Dump energy）Whether 30% is less than,
If it is, performing step S616, step S614 is otherwise performed.
Step S614：Judge that electrokinetic cell A whether there is failure, if it is, performing step S615, otherwise perform step
S617。
Specifically, above-mentioned steps S613 and step S614 is that the first battery manager judges whether the first electrokinetic cell accords with
Close the process of default discharging condition.
Step S615：Instrument A shows electrokinetic cell failure, and further performs step S616.That is the first electrokinetic cell is not
Meet default discharging condition, then judge that the first electrokinetic cell breaks down.
Step S616：Forbid wireless charging.I.e. when the first electrokinetic cell breaks down, charging flow terminates, and forbids nothing
Micro USB electricity.
Step S617：Wireless charging contactor in first battery manager A control adhesive high-tension distribution boxes A.I.e. first
When electrokinetic cell meets default discharging condition, the first battery manager control discharge loop is turned on, and now electric energy is provided at device
Electric energy reception device is powered in discharge mode, and by the first electrokinetic cell.
Step S618：Into wireless charging flow.I.e. electric energy provides device and has been enter into wireless discharge flow path, meanwhile, electric energy
Reception device enters wireless charging flow.
Step S619：Wireless charging ECU-A（I.e. electric energy provides device）Receive wireless charging ECU-B（I.e. electric energy receives dress
Put）（On electric automobile B）The electrokinetic cell B of transmission information.I.e. electric energy provides device and receives electric energy reception device hair
The information of the second electrokinetic cell sent.
Step S620：Wireless charging ECU-A（I.e. electric energy provides device）Charge power output is adjusted, by coil to unofficial biography
Delivery of energy amount.I.e. electric energy provides device according to the information of the second electrokinetic cell, adjusts discharge power, so that the discharge power is suitable to pair
Second power battery charging, and electric energy is transmitted to electric energy reception device by transmitting coil.
Step S621：Wireless charging ECU-A（I.e. electric energy provides device）Detect the running situation of wireless charging device.It is i.e. electric
Device can be provided the process of self-test is carried out to it.
Step S622：Judge transmitting coil whether failure, if it is, performing step S623, otherwise perform step S625.
Step S623：Stop wireless charging, send fault message and show wireless charging to the first battery manager A, instrument A
Device fault information.And further perform step S624.I.e. electric energy provides plant failure, and its fault message is sent into first
Battery manager.
Step S624：Send fault message and give wireless charging ECU-B（That is electric energy reception device）.Provide electric energy to device
Fault message send to electric energy reception device.
Step S625：Judge wireless charging ECU-A（I.e. electric energy provides device）Whether output abnormality, if it is, return
Step S623 is performed, otherwise performs step S626.
Step S626：Judge wireless charging ECU-A（I.e. electric energy provides device）Whether communication failure, if it is, perform
Return to step S623, otherwise perform step S627.
Above-mentioned steps 621 are to step S626, and in other words, i.e., in discharge process, electric energy provides device and carries out self-test in real time
To detect whether it occurs communication failure with electric energy reception device, if there is exception in testing result, to the first battery management
Device is fed back, then the first battery manager controls the first electrokinetic cell to stop providing mean for electricity to electric energy.
Step S627：First battery manager A detection vehicle mounted dynamic batteries A battery information.That is the first battery manager
Detect the information of the first electrokinetic cell.
Step S628：Judge whether electrokinetic cell A temperature is too high, if it is, performing step S629, otherwise perform step
Rapid S632.
Step S629：Judge whether electrokinetic cell A is general alarm, if it is, performing step S630, otherwise perform step
Rapid S631.
Step S630：First battery manager A sends limit power charge information, wireless charging ECU-A（I.e. electric energy provides dress
Put）Reduce current charge power.That is the first electrokinetic cell breaks down and the failure is the level fault of the first electrokinetic cell, this
When, electric energy provides the electric energy that device to electric energy reception device limit power and transmitted.
Step S631：Stop wireless charging, instrument A shows electrokinetic cell fault message.I.e. when the first above-mentioned power electric
When the failure in pond is secondary failure, the first battery manager controls the first electrokinetic cell to stop electric discharge.
Step S632：Judge whether electrokinetic cell A voltage is too high, if it is, performing step S629, otherwise perform step
Rapid S633.
Step S633：Judge whether charging current is excessive, if it is, performing step S629, otherwise perform step S634.
Step S634：Judge battery information collector whether failure, if it is, perform step S631, otherwise perform step
Rapid S635.
Step S635：Judge whether user presses discharge mode shift knob, if it is, performing step S636, otherwise
Perform step S637.Judge whether user has the intention for stopping discharging, if user presses shift knob, then it represents that Yong Huyao
Stop discharge flow path.
Step S636：First battery manager A sends charge completion information and gives wireless charging ECU-A（I.e. electric energy provides dress
Put）, and disconnection of wireless charging contactor.I.e. user presses shift knob, and now charging process is completed, and the first electrokinetic cell stops
Electricity is provided mean for electric energy, charge completion information is sent to electric energy and provides device by the first battery manager, to control electric energy
Device is provided to stop providing electric energy device transmission electric energy.
Step S637：Judge whether vehicle mounted dynamic battery A SOC is less than 20%, if it is, performing step S638, otherwise
Perform step S619.Judge whether the first electrokinetic cell also meets default discharging condition.
Step S638：First battery manager A sends vehicle mounted dynamic battery not enough power supply information and gives wireless charging ECU-B
（That is electric energy reception device）, and disconnection of wireless charging contactor.I.e. when the dump energy of the first electrokinetic cell is default less than first
During value, then judge that the first electrokinetic cell is unsatisfactory for default discharging condition, then stop electric discharge.
Step S639：Wireless charging ECU-A（I.e. electric energy provides device）Send charge completion information and give wireless charging ECU-B
（That is electric energy reception device）.I.e. after charging complete, electric energy provides device and feeds back charge completion information to electric energy reception device.
Step S640：Wireless charging is completed.
Fig. 7 is to be used for electric automobile to the wireless charging system of electric automobile to the according to one embodiment of the invention
The control flow chart of two charging electric vehicles, specifically comprises the following steps：
Step S701：High-tension electricity on vehicle B.I.e. the second electric automobile travels.
Step S702：After stationary vehicle, vehicle searches neighbouring wireless charging ECU signals.That is electric energy reception device and electricity
The process that device establishes wireless telecommunications can be provided.
Step S703：Judge onboard wireless charging ECU-B（That is electric energy reception device）Whether wireless charging device is detected
Signal.Judge that the electric energy of the first electric automobile provides whether device detects the wireless telecommunications letter that electric energy reception device is sent
Number.
Step S704：Judge whether the stand-by period is not detected by more than 30S and also wireless charging device signal, if it is,
Step S716 is then performed, otherwise performs step S705.Judge that electric energy provides whether device arrives wireless telecommunications in preset time
Signal.
Step S705：Onboard wireless charging ECU-B（That is electric energy reception device）Wireless charging is sent to the second battery manager B
Electric request signal.After i.e. electric energy offer device detects the wireless communication signal of electric energy reception device in preset time, electric energy
Reception device sends charge request to the second battery manager.
Step S706：Second battery manager B sends a signal to instrument B, and instrument B prompts the user whether to need wireless charging
Electricity.I.e. now electric energy reception device is in the charge request stage.
Step S707：Judge whether user presses charge mode button, if it is, performing step S709, otherwise perform
Step S708.
Step S708：Judge that the stand-by period whether more than 30S, if it is, performing step S716, otherwise performs step
S708。
In other words, that is, judge whether electric energy reception device receives the information for allowing charging in preset time.
Step S709：Wireless charging ECU-B（That is electric energy reception device）To wireless charging ECU-A（I.e. electric energy provides device）
Send charge mode information.User presses charge mode button i.e. in preset time, then judges that electric energy reception device connects
Receiving allows the information of electric discharge, and electric energy reception device enters charge mode, and the letter for allowing charging is sent to electric energy offer device
Breath.
Step S710：The match is successful for wireless charging.I.e. now electric energy reception device and electric energy provide device without lines matching into
Work(.Step S711：No longer respond the wireless charging request of other electric cars.I.e. when electric energy reception device and electric energy provide device without
After lines matching success, both of which no longer responds the wireless charging request of other automobiles.
Step S712：Wireless charging ECU-B（That is electric energy reception device）It is operated in charge mode.I.e. now electric energy receives dress
Put and be in charge mode.
Step S713：Whether the second battery manager B detection vehicle mounted dynamic batteries B SOC is more than 70%, if it is, holding
Row step S716, otherwise perform step S714.
Step S714：Judge that electrokinetic cell B whether there is failure, if it is, performing step S715, otherwise perform step
S717。
Specifically, above-mentioned steps S713 and step S714 is that the second battery manager judges whether the second electrokinetic cell accords with
Close the process of preset charged condition.
Step S715：Instrument B shows electrokinetic cell failure, and further performs step S716.That is the second electrokinetic cell is not
Meet preset charged condition, then judge that the second electrokinetic cell breaks down.
Step S716：Forbid wireless charging.I.e. when the second electrokinetic cell breaks down, charging flow terminates, and forbids nothing
Micro USB electricity.
Step S717：Wireless charging contactor in second battery manager B control adhesive high-tension distribution boxes B.I.e. second
When electrokinetic cell meets preset charged condition, the second battery manager control charge circuit conducting, now at electric energy reception device
In charge mode, and by receiving the electric energy of electric energy offer device, to be powered to the second electrokinetic cell.
Step S718：Into wireless charging flow.I.e. electric energy reception device enters wireless charging flow, meanwhile, electric energy carries
Enter wireless discharge flow path for device.
Step S719：The battery information that second battery manager B sends electrokinetic cell B gives wireless charging ECU-B（That is electric energy
Reception device）.That is the second battery manager starts the battery information of the second electrokinetic cell to give electric energy reception device, to determine to be suitable to
To the charge power of the second power battery charging.
Step S720：Wireless charging ECU-B（That is electric energy reception device）By receiving coil receive be transmitted through come energy
Amount.I.e. electric energy reception device receives the electric energy that device is provided from electric energy by its receiving coil.
Step S721：Wireless charging ECU-B（That is electric energy reception device）Detect the running situation of wireless charging device.Examine
Survey electric energy reception device and the process of self-test is carried out to it.
Step S722：Judge whether receiving coil breaks down, if it is, performing step S723, otherwise perform step
S725。
Step S723：Stop wireless charging, the information that breaks down gives the second battery manager B, instrument B to show wireless charging
Device fault information.That is electric energy reception device is broken down, and its fault message is sent to the second battery manager.
Step S724：The information that breaks down gives wireless charging ECU-A（I.e. electric energy provides device）.I.e. by electric energy reception device
Fault message send to electric energy provide device.
Step S725：Judge whether dc-dc breaks down, if it is, performing step S723, otherwise perform step
Rapid S726.
Step S726：Judge wireless charging ECU-B（That is electric energy reception device）Whether communication failure, if it is, perform
Step S723, otherwise perform step S727.
Above-mentioned steps S721 to step S126, in other words, i.e., in charging process, electric energy reception device carries out self-test in real time
To detect whether it provides device generation communication failure with electric energy, if there is exception in testing result, to the second battery management
Device is fed back, then the second battery manager controls the second electrokinetic cell to stop charging.
Step S727：Second battery manager B detection vehicle mounted dynamic batteries B battery information.That is the second battery manager
Detect the information of the second electrokinetic cell.
Step S728：Judge whether electrokinetic cell B temperature is too high, if it is, performing step S729, otherwise perform step
Rapid S732.
Step S729：Judge whether electrokinetic cell is general alarm, if it is, performing step S730, otherwise perform step
Rapid S731.
Step S730：Second battery manager B sends limit power charge information, wireless charging ECU-B（I.e. electric energy receives dress
Put）Send limit power information and give wireless charging ECU-A（I.e. electric energy provides device）, reduce current charge power.That is the second power
Cell malfunctions and the failure are the level fault of the second electrokinetic cell, and now, electric energy reception device sends limit power information
Give electric energy provide device, electric energy provide device according to the limit power information adjust discharge power output so that the power be suitable to pair
Second power battery charging.
Step S731：Stop wireless charging, instrument B shows electrokinetic cell fault message.I.e. when the second above-mentioned power electric
When pond failure is secondary failure, the second battery manager controls the second electrokinetic cell to stop charging.
Step S732：Judge whether electrokinetic cell B voltage is too high, if it is, performing step S729, otherwise perform step
Rapid S733.
Step S733：Judge whether charging current is excessive, if it is, performing step S729, otherwise perform step S734.
Step S734：Judge battery information collector whether failure, if it is, perform step S731, otherwise perform step
Rapid S735.
Step S735：Judge whether user presses charge mode shift knob, if it is, performing step S737, otherwise
Perform step S736.Judge whether user has the intention for stopping charging, if user presses charge switch button, then it represents that use
Family will stop charging flow.
Step S736：Second battery manager B judges whether wireless charging is completed, if it is, step S737 is performed, it is no
Then perform step S719.
Step S737：Second battery manager B sends charge completion information and gives wireless charging ECU-B（I.e. electric energy receives dress
Put）, and disconnection of wireless charging contactor.I.e. user presses shift knob, and now charging process is completed, then the second battery manager
Charge completion information is sent to electric energy reception device, stops transmitting electricity to the second electrokinetic cell to control electric energy to provide device
Energy.
Step S738：Wireless charging ECU-B（That is electric energy reception device）Send charge completion information and give wireless charging ECU-A
（I.e. electric energy provides device）.I.e. after charging complete, electric energy reception device, which sends charge completion information to electric energy, provides device,
So that electric energy provides device and stops providing electric energy to electric energy reception device.
Step S739：Wireless charging is completed.
According to embodiments of the present invention is used for wireless charging system of the electric automobile to electric automobile, and electric automobile can be achieved
Between wireless charging, reduce manual operation, so as to improve electric automobile charging when safety and reliability, avoid
Plug the charging connection equipment attrition caused by charging equipment in wired charging method, connector service life of equipment declines etc.
Problem.When the distance of wireless charging between ensureing electric automobile is sufficiently small（If the distance of transmitting coil and receiving coil is in 200mm
In the range of when）, efficient electric energy transmission can be achieved.In addition, the mode of wireless charging is easy to operate, user only need to be according to instruction
Prompt operation button that wireless charging can be achieved.The real-time status that embodiments of the invention can be directed to electric automobile power battery is entered
The charging of row corresponding power, to improve the charge efficiency of electrokinetic cell and service life.In addition, by the system, disclosure satisfy that
User to the demand of charging electric vehicle, prevents electric automobile from influenceing user's because electricity exhausts in the process of moving out of doors
Stroke, improve the applicability of electric automobile.
The invention also provides a kind of wireless charging method for electric automobile to electric automobile.Fig. 8 is according to this hair
Bright one embodiment is used for flow chart of the electric automobile to the wireless charging method of electric automobile.
As shown in figure 8, the wireless charging method according to an embodiment of the invention for electric automobile to electric automobile,
Wherein, electric automobile includes：First electric automobile and the second electric automobile, electric energy is provided with the first electric automobile dress is provided
Put, the first battery manager and the first electrokinetic cell, electric energy reception device, the second battery management are provided with the second electric automobile
Device and the second electrokinetic cell.As a specific example, the first electrokinetic cell and the second electrokinetic cell can be onboard power
Battery, refer to be arranged on electric automobile, provide power output for electric automobile and be other power supply for electrical equipment on car
Energy storage device, it can carry out charging repeatedly, and voltage is generally 12V or 24V.Wherein, above-mentioned electric automobile can be pure
Electric automobile or mixed power electric car.This method comprises the following steps：
Step S801, control electric energy provides device and electric energy reception device establishes wireless telecommunications.Specifically, electric energy provides
Device can detect the wireless communication signal that electric energy reception device is sent, to carry out mutual wireless telecommunications.
Step S802, after wireless telecommunications are established, control electric energy reception device enters electric discharge request stage and controls electric energy
Reception device enters the charge request stage.
Step S803, the first battery manager judge whether the first electrokinetic cell meets default discharging condition and the second battery
Manager judges whether the second electrokinetic cell meets preset charged condition.Wherein, in one embodiment of the invention, when first
When failure is not present not less than the first preset value and the first electrokinetic cell in power battery charged state, judge that the first electrokinetic cell accords with
Close default discharging condition.When event is not present not higher than the second preset value and the second electrokinetic cell in the state-of-charge of the second electrokinetic cell
During barrier, judge that the second electrokinetic cell meets preset charged condition.Wherein, the first preset value and the second preset value are to set in advance
Fixed, as a specific example, the first preset value is, for example, but is not limited to 30%, and the second preset value is, for example, but is not limited to 70%.
Step S804, if it is, controlling the first electrokinetic cell to provide mean for electricity for electric energy.Wherein, in control first
Electrokinetic cell is during electric energy provides mean for electricity, if the first electrokinetic cell breaks down and the failure is the first power
During the level fault of battery, then control electric energy to provide the electric energy that device to electric energy reception device limit power and transmit；If should
When failure is the secondary failure of the first electrokinetic cell, then the first electrokinetic cell is controlled to stop electric discharge, to ensure the peace of charging equipment
Entirely.
Further, when controlling the first electrokinetic cell to provide mean for electricity for electric energy, instructed when receiving discharge off,
When either judging that the first electrokinetic cell does not meet default discharging condition or electric energy reception device and failure be present, control first is dynamic
Power battery stops providing mean for electricity to electric energy, to ensure the reliability of charging process and security.
Step S805, electric energy provide device according to the Information Pull electromagnetic induction of the second electrokinetic cell to electric energy reception device
Wirelessly transmitting electrical energy.
More specifically, in one embodiment of the invention, electric energy provides information of the device according to the second electrokinetic cell
Judge to be suitable to the charge power for charging to the second electrokinetic cell, and electricity is transmitted to electric energy reception device with the charge power
Energy.Wherein, the information of the second electrokinetic cell for example includes but is not limited to：The current residual electricity of second electrokinetic cell, charging electricity
Stream, charge requirement power, highest single battery voltage, minimum single battery voltage, highest single battery temperature, minimum single-unit electricity
Pond temperature and electrokinetic cell fault message etc..So, electric energy provide device can be judged according to the information of above-mentioned battery be suitable to pair
The charge power that second electrokinetic cell is charged, and electric energy is transmitted to electric energy reception device with the charge power, so as to ensure
The charge efficiency higher to the second electrokinetic cell, while ensure reliability and security to the second power battery charging.
Step S806, electric energy reception device charge to the second electrokinetic cell.Wherein, in electric energy reception device to second
When electrokinetic cell is charged, in addition to：If the second electrokinetic cell breaks down and the failure is the one of the second electrokinetic cell
During level failure, then control electric energy reception device to provide device to electric energy and send limit power transmission instruction, so that electric energy provides device
The electric energy for electric energy reception device limit power transmits；In addition, if the failure is the secondary failure of the second electrokinetic cell, then
The second electrokinetic cell is controlled to stop charging, to ensure the safety of charging equipment.
Further, when electric energy reception device charges to the second electrokinetic cell, instructed when receiving charging termination,
Either the second electrokinetic cell does not meet preset charged condition or when electric energy reception device has failure, then electric energy reception device
Stop to the second power battery charging, to ensure the reliability of charging process and security.
According to embodiments of the present invention is used for wireless charging method of the electric automobile to electric automobile, and electric automobile can be achieved
Between wireless charging, reduce manual operation, so as to improve electric automobile charging when safety and reliability, avoid
Plug the charging connection equipment attrition caused by charging equipment in wired charging method, connector service life of equipment declines etc.
Problem.When the distance of wireless charging between ensureing electric automobile is sufficiently small（If the distance of transmitting coil and receiving coil is in 200mm
In the range of when）, efficient electric energy transmission can be achieved.In addition, the mode of wireless charging is easy to operate, user only need to be according to instruction
Prompt operation button that wireless charging can be achieved.The real-time status that embodiments of the invention can be directed to electric automobile power battery is entered
The charging of row corresponding power, to improve the charge efficiency of electrokinetic cell and service life.In addition, by this method, disclosure satisfy that
User to the demand of charging electric vehicle, prevents electric automobile from influenceing user's because electricity exhausts in the process of moving out of doors
Stroke, improve the applicability of electric automobile.Any process or method described otherwise above description in flow chart or herein
It is construed as, represents the executable instruction for including one or more the step of being used to realize specific logical function or process
Code module, fragment or part, and the scope of the preferred embodiment of the present invention includes other realization, wherein can be with
By order that is shown or discussing, including according to involved function by it is basic simultaneously in the way of or in the opposite order, it is next
Perform function, this should be understood by embodiments of the invention person of ordinary skill in the field.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment（As computer based system including the system of processor or other can be held from instruction
The system of row system, device or equipment instruction fetch and execute instruction）Use, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
Defeated program is for instruction execution system, device or equipment or the dress used with reference to these instruction execution systems, device or equipment
Put.The more specifically example of computer-readable medium（Non-exhaustive list）Including following：Electricity with one or more wiring
Connecting portion（Electronic installation）, portable computer diskette box（Magnetic device）, random access memory（RAM）, read-only storage
（ROM）, erasable edit read-only storage（EPROM or flash memory）, fiber device, and portable optic disk is read-only deposits
Reservoir（CDROM）.In addition, computer-readable medium, which can even is that, to print the paper of described program thereon or other are suitable
Medium, because can then enter edlin, interpretation or if necessary with it for example by carrying out optical scanner to paper or other media
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, software that multiple steps or method can be performed in memory and by suitable instruction execution system with storage
Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, have suitable combinational logic gate circuit application specific integrated circuit, programmable gate array（PGA）, scene
Programmable gate array（FPGA）Deng.
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method carries
Suddenly it is that by program the hardware of correlation can be instructed to complete, described program can be stored in a kind of computer-readable storage medium
In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, can also
That unit is individually physically present, can also two or more units be integrated in a module.Above-mentioned integrated mould
Block can both be realized in the form of hardware, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized in the form of software function module and as independent production marketing or in use, can also be stored in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only storage, disk or CD etc..
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 the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any
One or more embodiments or example in combine in an appropriate manner.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art is not departing from the principle and objective of the present invention
In the case of above-described embodiment can be changed within the scope of the invention, change, replace and modification.
Claims (16)
- A kind of 1. wireless charging system for electric automobile to electric automobile, it is characterised in that including：Electric energy offer device, Electric energy reception device and cell managing device, the cell managing device include the first battery manager and the second battery management Device, wherein, the electric energy provides device and first battery manager is located on the first electric automobile, and the electric energy receives dress Put and be located at second battery manager on the second electric automobile, first electric automobile has the first electrokinetic cell, institute Stating the second electric automobile has the second electrokinetic cell,The electric energy provides device, for electric to described first when detecting the wireless communication signal of the electric energy reception device Pool manager sends electric discharge request, and provides device in the electric energy and enter into electric discharge request stage and the electric energy reception device After entering the charge request stage, wireless discharge flow path is entered when first electrokinetic cell meets default discharging condition, with root According to the Information Pull electromagnetic induction of second electrokinetic cell to the electric energy reception device wirelessly transmitting electrical energy, wherein, it is described Electric energy provides device and is judged to be suitable to charge to second electrokinetic cell according to the information of second electrokinetic cell Charge power, and electric energy is transmitted to the electric energy reception device with the charge power；The electric energy reception device, the wireless communication signal and described receiving is sent for providing device to the electric energy Charge request is sent to second battery manager when electric energy provides the feedback of device, and provides device in the electric energy and enters Enter to discharge request stage and the electric energy reception device entered after the charge request stage, when second electrokinetic cell meet it is pre- If entering wireless charging flow during charge condition, with the electric energy that device offer is provided from the electric energy arrived using wireless receiving For second power battery charging, and the information of second electrokinetic cell is sent to the electric energy device is provided；First battery manager, the electric discharge request that device is provided and sent for receiving the electric energy, and according to the electric discharge Request controls the electric energy offer device to enter the electric discharge request stage, and is judging that it is described that first electrokinetic cell meets During default discharging condition, first electrokinetic cell is controlled to provide device transmission electric energy so that the electric energy provides to the electric energy Device enters the wireless discharge flow path, after electric energy offer device enters the wireless discharge flow path, first electricity Pool manager is additionally operable to detecting that first electrokinetic cell breaks down and the failure of first electrokinetic cell is first During the level fault of electrokinetic cell, control the electric energy to provide the electric energy that device to the electric energy reception device limit power and pass It is defeated, if the failure of first electrokinetic cell is the secondary failure of the first electrokinetic cell, the first battery manager control Make first electrokinetic cell and stop electric discharge；Second battery manager, the charge request sent for receiving the electric energy reception device, and according to the charging Request controls the electric energy reception device to enter the charge request stage, and is judging that it is described that second electrokinetic cell meets During preset charged condition, the electric energy reception device is controlled to enter the wireless charging flow with by the electric energy reception device For second power battery charging, after the electric energy reception device enters the wireless charging flow, second battery Manager is additionally operable to detecting that second electrokinetic cell breaks down and the failure of second electrokinetic cell is second dynamic During the level fault of power battery, control the electric energy reception device to provide device to the electric energy and send limit power transmission instruction, So as to the electric energy provide device to the electric energy reception device carry out limit power electric energy transmit, if second power electric The failure in pond is the secondary failure of the second electrokinetic cell, and second battery manager controls second electrokinetic cell to stop filling Electricity.
- 2. the system as claimed in claim 1, it is characterised in that first battery manager is additionally operable in the wireless electric discharge In flow, when receive discharge off instruction or judge that first electrokinetic cell does not meet the default discharging condition or described When electric energy reception device has failure, first electrokinetic cell is controlled to stop providing device transmission electric energy to the electric energy.
- 3. the system as claimed in claim 1, it is characterised in that second battery manager is additionally operable in the wireless charging In flow, when receiving, charging termination instructs or second electrokinetic cell does not meet the preset charged condition or the electric energy When reception device has failure, second electrokinetic cell is controlled to stop charging.
- 4. the system as claimed in claim 1, it is characterised in that the electric energy, which provides device, to be included：Frequency up converter, for the high voltage direct current provided from first electrokinetic cell to be converted to the exchange of predeterminated frequency Electricity；First wireless communication module, for being communicated wirelessly with the electric energy reception device；First detection module, fault detect is carried out for providing device to the electric energy；Transmitting coil, for the alternating current to be launched in the form of electromagnetic field to the electric energy reception device；First control module, for the frequency up converter, the first wireless communication module, first detection module and the transmitting Coil is controlled.
- 5. system as claimed in claim 4, it is characterised in that the electric energy reception device includes：Receiving coil, for receiving the electric energy from the transmitting coil；Second wireless communication module, communicated wirelessly for providing device with the electric energy；Second detection module, for carrying out fault detect to the electric energy reception device；Rectifier, for the alternating current from the receiving coil to be converted into direct current；Dc-dc, for being second power after carrying out voltage conversion to the direct current provided from the rectifier Battery charges；Second control module, for the receiving coil, the second wireless communication module, the second detection module, rectifier and DC- DC converters are controlled.
- 6. the system as claimed in claim 1, it is characterised in that the electric energy, which provides device, also to be included：First connector, it is described Electric energy provides device and communicated by first connector and first battery manager, and the electric energy reception device is also Including：Second connector, the electric energy reception device are led to by second connector and second battery manager News.
- 7. the system as claimed in claim 1, it is characterised in that also include：First high-tension distribution box and the second high-tension distribution box, First high-tension distribution box provides device, first electrokinetic cell and first battery manager with the electric energy respectively Electrical connection, first high-tension distribution box control by first battery manager, with control the conducting of wireless discharge loop with Disconnect；Second high-tension distribution box by high-voltage wiring harness respectively with the electric energy reception device, second electrokinetic cell and The second battery manager electrical connection, second high-tension distribution box is controlled by second battery manager, to control nothing The conducting and disconnection of micro USB electrical circuit.
- 8. the system as claimed in claim 1, it is characterised in that when following condition is set up, first battery manager is sentenced Fixed first electrokinetic cell meets the default discharging condition：Failure is not present not less than the first preset value and first electrokinetic cell in the state-of-charge of first electrokinetic cell.
- 9. the system as claimed in claim 1, it is characterised in that when following condition is set up, second battery manager is sentenced Fixed second electrokinetic cell meets the preset charged condition：Failure is not present not higher than the second preset value and second electrokinetic cell in the state-of-charge of second electrokinetic cell.
- 10. the system as claimed in claim 1, it is characterised in that provide device in the electric energy and enter the wireless discharge stream Cheng Hou, the electric energy provide device and are additionally operable to carry out self-test in real time and detect whether to communicate with the electric energy reception device Failure, if exception occurs in testing result, fed back to first battery manager, the first battery manager control Make first electrokinetic cell and stop electric discharge.
- 11. the system as claimed in claim 1, it is characterised in that enter the wireless charging electric current in the electric energy reception device Cheng Hou, the electric energy reception device are additionally operable to carry out self-test in real time and detect whether that providing device with the electric energy communicates Failure, if exception occurs in testing result, fed back to second battery manager, the second battery manager control Make second electrokinetic cell and stop charging.
- 12. a kind of wireless charging method for electric automobile to electric automobile, it is characterised in that the electric automobile includes： First electric automobile and the second electric automobile, electric energy is provided with first electric automobile device, the first battery management are provided Device and the first electrokinetic cell, it is dynamic that electric energy reception device, the second battery manager and second are provided with second electric automobile Power battery, the described method comprises the following steps：The electric energy offer device and the electric energy reception device is controlled to establish wireless telecommunications；After wireless telecommunications are established, control the electric energy to provide device and enter electric discharge request stage and control the electric energy to receive dress Put and enter the charge request stage；First battery manager judges whether first electrokinetic cell meets default discharging condition and second battery Manager judges whether second electrokinetic cell meets preset charged condition；If first electrokinetic cell meets default discharging condition and second battery manager judges second power Battery meets preset charged condition, then controls first electrokinetic cell to provide device transmission electric energy to the electric energy, wherein, Control first electrokinetic cell for the electric energy provide mean for electricity when, if first electrokinetic cell breaks down and institute When the failure for stating the first electrokinetic cell is the level fault of the first electrokinetic cell, then the electric energy is controlled to provide device to the electricity Energy reception device limit the electric energy transmission of power, if the failure of first electrokinetic cell is the two level of the first electrokinetic cell During failure, then first electrokinetic cell is controlled to stop electric discharge；The electric energy provides device according to the Information Pull electromagnetic induction of second electrokinetic cell to the electric energy reception device Wirelessly transmitting electrical energy, wherein, the electric energy provides device and judges to be suitable to described according to the information of second electrokinetic cell The charge power that second electrokinetic cell is charged, and electric energy is transmitted to the electric energy reception device with the charge power；The electric energy reception device charges to second electrokinetic cell, wherein, in the electric energy reception device to described When second electrokinetic cell is charged, in addition to：If second electrokinetic cell breaks down and second electrokinetic cell Failure be the second electrokinetic cell level fault, then control the electric energy reception device to the electric energy provide device send limit Power transmission instruct, so as to the electric energy provide device to the electric energy reception device carry out limit power electric energy transmit, if The failure of second electrokinetic cell is the secondary failure of the second electrokinetic cell, then controls second electrokinetic cell to stop filling Electricity.
- 13. method as claimed in claim 12, it is characterised in that also include：It is described controlling first electrokinetic cell When electric energy provides mean for electricity, first electrokinetic cell is controlled to stop providing device to the electric energy when following condition is set up Power supply：Receive discharge off instruction；Or judge that first electrokinetic cell does not meet the default discharging condition；Or there is failure in the electric energy reception device.
- 14. method as claimed in claim 12, it is characterised in that also include：In the electric energy reception device to described second When electrokinetic cell is charged, stop the electric energy reception device when following condition is set up and second electrokinetic cell is carried out Charging：Receive charging termination instruction；Or second electrokinetic cell does not meet the preset charged condition；Or there is failure in the electric energy reception device.
- 15. method as claimed in claim 12, it is characterised in that when following condition is set up, judge first power electric Pond meets the default discharging condition：Failure is not present not less than the first preset value and first electrokinetic cell in the state-of-charge of first electrokinetic cell.
- 16. method as claimed in claim 12, it is characterised in that when following condition is set up, judge second power electric Pond meets the preset charged condition：Failure is not present not higher than the second preset value and second electrokinetic cell in the state-of-charge of second electrokinetic cell.
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| CN109878354B (en) * | 2019-04-02 | 2022-12-23 | 远景能源（江苏）有限公司 | Automatic charging device and operation method thereof |
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