CN104638694A - Wireless charging system and method for electric cars - Google Patents
Wireless charging system and method for electric cars Download PDFInfo
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- CN104638694A CN104638694A CN201310558061.5A CN201310558061A CN104638694A CN 104638694 A CN104638694 A CN 104638694A CN 201310558061 A CN201310558061 A CN 201310558061A CN 104638694 A CN104638694 A CN 104638694A
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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 wireless charging system for electric cars and a control method of the wireless charging system. The system comprises an electric energy providing device, an electric energy receiving device and a battery management device, wherein the battery management device comprises a first battery manager and a second battery manager, and the electric energy providing device is used for transmitting electric energy to the electric energy receiving device; the electric energy receiving device uses the electric energy provided by the electric energy providing device to charge a second power battery; the first battery manager is used for controlling the wireless charging flow of the electric energy providing device; the second battery manager is used for controlling the wireless charging flow of the electric energy receiving device. The wireless charging system has the advantages that wireless charging between the electric cars can be achieved, high safety and reliability are achieved, charging is simple and practicable, the service life of charging equipment can be prolonged by the wireless charging manner, and high applicability is achieved.
Description
Technical field
The present invention relates to the power battery charging technical field of electric automobile, particularly a kind of for electric automobile to the wireless charging system of electric automobile and method.
Background technology
Along with new-energy automobile, the particularly continuous popularization of electric automobile or hybrid vehicle, new-energy automobile is day by day relevant to our daily life.Because current electric motor car is by the impact of battery electric quantity, course continuation mileage is restricted, and is difficult to the trip requirements meeting user.Particularly after the electricity loss in traveling way of user's steering vehicle is complete, electric automobile cannot continue to travel, and affects the stroke of user.
Based on the problems referred to above, can be charged to another electric motor car by an electric motor car, the electric motor car making electricity lower can obtain certain electricity, thus can reach neighbouring charging station and charge.Mutual charging modes between current electric automobile mainly wired charging modes, and there is following weak point in this charging modes:
First, the lead-in wire moving carrying and high-voltage wiring harness of charging device is long, and manual operation is loaded down with trivial details.Existing connection device many employings wired connection, each charging all needs to plug connection device.
Secondly, due to manual operation, in charging process, very easily there is the factors such as the excessive wear of charging connection device and insecurity.There will be wearing and tearing during connection device plug, there is the high voltage component exposed, this brings certain impact to the fail safe of charging system, reliability, and shortens the useful life of charging device.
Summary of the invention
The present invention is intended to one of solve the problems of the technologies described above at least to a certain extent.
For this reason, one object of the present invention is to provide a kind of for the wireless charging system of electric automobile to electric automobile, this system can realize wireless charging between electric automobile, there is higher safety and reliability, and it is simple to charge, in addition, adopt the mode of wireless charging can improve the useful life of charging device, there is higher applicability.
Another object of the present invention is that proposition is a kind of for the wireless charging method of electric automobile to electric automobile.
For achieving the above object, the embodiment of first aspect present invention provides a kind of for the wireless charging system of electric automobile to electric automobile, comprise: electric energy generator, electric energy receiving system and cell managing device, described cell managing device comprises the first battery manager and the second battery manager, wherein, described electric energy generator and described first battery manager are positioned on the first electric automobile, described electric energy receiving system and described second battery manager are positioned on the second electric automobile, described first electric automobile has the first electrokinetic cell, described second electric automobile has the second electrokinetic cell, described electric energy generator, for sending electric discharge request when the wireless communication signal of described electric energy receiving system being detected to described first battery manager, and after described electric energy generator enters electric discharge request stage and described electric energy receiving system enters the charge request stage, wireless discharge flow path is entered when described first electrokinetic cell meets default discharging condition, with according to the Information Pull electromagnetic induction of described second electrokinetic cell to described electric energy receiving system wirelessly transmitting electrical energy, described electric energy receiving system, for sending described wireless communication signal to described electric energy generator and sending charge request when receiving the feedback of described electric energy generator to described second battery manager, and after described electric energy generator enters electric discharge request stage and described electric energy receiving system enters the charge request stage, wireless charging flow process is entered when described second electrokinetic cell meets preset charged condition, with utilize wireless receiving to the electric energy provided from described electric energy generator be described second power battery charging, and the information of described second electrokinetic cell is sent to described electric energy generator, described first battery manager, for receiving the electric discharge request that described electric energy generator sends, and electric energy generator enters described electric discharge request stage according to described electric discharge Request Control, and when judging that described first electrokinetic cell meets described default discharging condition, controlling described first electrokinetic cell and entering described wireless discharge flow path to described electric energy generator electric energy transmitting to make described electric energy generator, described second battery manager, for receiving the charge request that described electric energy receiving system sends, and control described electric energy receiving system according to described charge request and enter the described charge request stage, and when judging that described second electrokinetic cell meets described preset charged condition, controlling described electric energy receiving system and entering described wireless charging flow process being described second power battery charging by described electric energy receiving system.
According to the embodiment of the present invention for the wireless charging system of electric automobile to electric automobile, the wireless charging between electric automobile can be realized, decrease manual operation, thus improve the safety and reliability of electric automobile when charging, avoid in wired charging modes the charging connection device wearing and tearing plugging charging device and cause, degradation problem under connector service life of equipment.When ensureing enough hour of the distance (as when the distance of transmitting coil and receiving coil is within the scope of 200mm) of wireless charging between electric automobile, high efficiency delivery of electrical energy can be realized.In addition, the mode of wireless charging is easy and simple to handle, and user only need can realize wireless charging according to command prompt action button.Embodiments of the invention can carry out the charging of corresponding power for the real-time status of electric automobile power battery, to improve charge efficiency and the useful life of electrokinetic cell.In addition, by native system, user can be met out of doors to the demand of charging electric vehicle, prevent electric automobile from affecting the stroke of user in the process of moving because electricity exhausts, improve the applicability of electric automobile.
The embodiment of second aspect present invention also proposed a kind of for the wireless charging method of electric automobile to electric automobile, described electric automobile comprises: the first electric automobile and the second electric automobile, described first electric automobile is provided with electric energy generator, the first battery manager and the first electrokinetic cell, described second electric automobile is provided with electric energy receiving system, the second battery manager and the second electrokinetic cell, said method comprising the steps of: control described electric energy generator and wireless telecommunications set up by described electric energy receiving system; After setting up wireless telecommunications, control described electric energy receiving system and enter electric discharge request stage and control described electric energy receiving system and enter the charge request stage; Described first battery manager judges whether described first electrokinetic cell meets default discharging condition and described second battery manager judges whether described second electrokinetic cell meets preset charged condition; If so, then described first electrokinetic cell is controlled to described electric energy generator electric energy transmitting; Described electric energy generator according to the Information Pull electromagnetic induction of described second electrokinetic cell to described electric energy receiving system wirelessly transmitting electrical energy; Described electric energy receiving system charges to described second electrokinetic cell.
According to the embodiment of the present invention for the wireless charging method of electric automobile to electric automobile, the wireless charging between electric automobile can be realized, decrease manual operation, thus improve the safety and reliability of electric automobile when charging, avoid in wired charging modes the charging connection device wearing and tearing plugging charging device and cause, degradation problem under connector service life of equipment.When ensureing enough hour of the distance (as when the distance of transmitting coil and receiving coil is within the scope of 200mm) of wireless charging between electric automobile, high efficiency delivery of electrical energy can be realized.In addition, the mode of wireless charging is easy and simple to handle, and user only need can realize wireless charging according to command prompt action button.Embodiments of the invention can carry out the charging of corresponding power for the real-time status of electric automobile power battery, to improve charge efficiency and the useful life of electrokinetic cell.In addition, by this method, user can be met out of doors to the demand of charging electric vehicle, prevent electric automobile from affecting the stroke of user in the process of moving because electricity exhausts, improve the applicability of electric automobile.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is according to an embodiment of the invention for the schematic diagram of electric automobile to the wireless charging system of electric automobile;
Fig. 2 is in accordance with another embodiment of the present invention for the structured flowchart of electric automobile to the wireless charging system of electric automobile;
Fig. 3 is according to an embodiment of the invention for the electric energy transfer principle figure of electric automobile to the wireless charging system of electric automobile;
Fig. 4 is according to an embodiment of the invention for the charging and discharging principle schematic of electric automobile to the onboard wireless charging ECU of the wireless charging system of electric automobile;
Fig. 5 is according to an embodiment of the invention for the communication network schematic diagram of electric automobile to the wireless charging system of electric automobile;
Fig. 6 is according to an embodiment of the invention for the first electric automobile control of discharge flow chart of electric automobile to the wireless charging system of electric automobile;
Fig. 7 is according to an embodiment of the invention for the control flow chart to second charging electric vehicle of electric automobile to the wireless charging system of electric automobile; And
Fig. 8 is according to an embodiment of the invention for the flow chart of electric automobile to the wireless charging method of electric automobile.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is less than second feature.
Below in conjunction with accompanying drawing describe according to the embodiment of the present invention for electric automobile to the wireless charging system of electric automobile and method.Wherein, above-mentioned electric automobile can be pure electric automobile or mixed power electric car.
Fig. 1 is according to an embodiment of the invention for the schematic diagram of electric automobile to the wireless charging system of electric automobile.Fig. 2 is in accordance with another embodiment of the present invention for the structured flowchart of electric automobile to the wireless charging system of electric automobile.
As depicted in figs. 1 and 2, according to an embodiment of the invention for the wireless charging system 100 of electric automobile to electric automobile, comprising: electric energy generator 110, electric energy receiving system 120 and cell managing device 130.Cell managing device 130 comprises the first battery manager 131 and the second battery manager 132, wherein, electric energy generator 110 and the first battery manager 131 are positioned on the first electric automobile, electric energy receiving system 120 and the second battery manager 132 are positioned on the second electric automobile, and the first electric automobile has the first electrokinetic cell, the second electric automobile has the second electrokinetic cell.As a concrete example, first electrokinetic cell and the second electrokinetic cell can be vehicle mounted dynamic battery, refer to and be arranged on electric automobile, for the energy storage device that electric automobile provides Power output and powers for other power consumption equipments on car, 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.
Particularly, electric energy generator 110 is for sending electric discharge request when the wireless communication signal of electric energy receiving system 120 being detected to the first battery manager 131, and after electric energy generator 110 enters electric discharge request stage and electric energy receiving system 120 enters the charge request stage, enter wireless discharge flow path when the first electrokinetic cell meets default discharging condition, with according to the Information Pull electromagnetic induction of the second electrokinetic cell to electric energy receiving system 120 wirelessly transmitting electrical energy.Wherein, in a concrete example of the present invention, when the state-of-charge of the first electrokinetic cell is not less than the first preset value and the first electrokinetic cell does not exist fault, the first battery manager 131 judges that the first electrokinetic cell meets default discharging condition.Wherein, the first preset value is for presetting, and as a concrete example, the first preset value is such as but is not limited to 30%.
In one embodiment of the invention, after electric energy generator 110 enters wireless charging flow process, electric energy generator 110 is also for carrying out self-inspection in real time and detecting whether with electric energy receiving system 120, communication failure occurs, if testing result occurs abnormal, then feed back to the first battery manager 131, first battery manager 131 controls the first electrokinetic cell and stops electric discharge, to guarantee the safety of charging process.
In another embodiment of the present invention, electric energy generator 110 also for judging to be suitable for the charge power that the second electrokinetic cell carries out charging according to the information of the second electrokinetic cell, and with this charge power to electric energy receiving system 120 electric energy transmitting.Wherein, the information of the second electrokinetic cell such as includes but not limited to: the current residual electricity of the second electrokinetic cell, charging current, charge requirement power, the highest single battery voltage, minimum single battery voltage, the highest single battery temperature, minimum single battery temperature and electrokinetic cell fault message etc.Like this, electric energy generator 110 can judge according to the information of above-mentioned battery the charge power that is suitable for charging to the second electrokinetic cell, and with this charge power to electric energy receiving system 120 electric energy transmitting.In other words, namely electric energy generator 110 can according to the current residual electricity of the second electrokinetic cell, charging current, charge requirement power, the highest single battery voltage, minimum single battery voltage, the highest single battery temperature, minimum single battery temperature and electrokinetic cell fault message, judge the suitable charge power of the second electrokinetic cell, thus with this charge power to electric energy receiving system 120 electric energy transmitting to charge to the second electrokinetic cell, thus ensure the charge efficiency higher to the second electrokinetic cell, guarantee the reliability to the second power battery charging and fail safe simultaneously.
Electric energy receiving system 120 is for sending wireless communication signal to electric energy generator 110 and sending charge request when receiving the feedback of electric energy generator 110 to the second battery manager 132, and after electric energy generator 110 enters electric discharge request stage and electric energy receiving system 120 enters the charge request stage, wireless charging flow process is entered when the second electrokinetic cell meets preset charged condition, to utilize the electric energy provided from electric energy generator 110 received to be the second power battery charging, and the information of the second electrokinetic cell is sent to electric energy generator 110.Wherein, in a concrete example of the present invention, when the state-of-charge of the second electrokinetic cell not higher than the second preset value and there is not fault in the second electrokinetic cell time, the second battery manager 132 judges that the second electrokinetic cell meets preset charged condition.Wherein, the second preset value is for presetting, and as a concrete example, the second preset value is such as but is not limited to 70%.
In one embodiment of the invention, after electric energy receiving system 120 enters wireless charging flow process, electric energy receiving system 120 is also for carrying out self-inspection in real time and detecting whether with electric energy generator 110, communication failure occurs, if testing result occurs abnormal, then feed back to the second battery manager 132, second battery manager 132 controls the second electrokinetic cell and stops charging, to guarantee the safety of charging process.
The electric discharge request that first battery manager 131 sends for receiving electric energy generator 110, and enter electric discharge request stage according to this electric discharge Request Control electric energy generator 110, and when judgement first electrokinetic cell meets default discharging condition, control the first electrokinetic cell and power to make electric energy generator 110 enter wireless discharge flow path to electric energy generator 110.Further, first battery manager 131 also in wireless charging flow process when receive discharge off instruction or judge the first electrokinetic cell do not meet default discharging condition or electric energy receiving system 120 there is fault time, control the first electrokinetic cell to stop providing electric energy to electric energy generator 110, to guarantee reliability and the fail safe of charging process.
In addition, in one embodiment of the invention, after electric energy generator 110 enters wireless discharge flow path, first battery manager 131 is also for when detecting that the first electrokinetic cell breaks down and this fault is the level fault of the first electrokinetic cell, control electric energy generator 110 carries out limitting delivery of electrical energy from power to electric energy receiving system 120, further, if when this fault is the secondary failure of the first electrokinetic cell, then the first battery manager 131 controls the first electrokinetic cell stopping electric discharge, to guarantee the safety of charging device.
The charge request that second battery manager 132 sends for receiving electric energy receiving system 120, and enter the charge request stage according to this charge request control electric energy receiving system 120, and when judgement second electrokinetic cell meets preset charged condition, control electric energy receiving system 120 and enter wireless charging flow process being the second power battery charging by electric energy receiving system 120.Further, second battery manager 132 also for not meeting and control second electrokinetic cell when preset charged conditioned disjunction electric energy receiving system 120 exists fault when receiving charging termination instruction or the second electrokinetic cell and stop charging, to guarantee reliability and the fail safe of charging process in wireless charging flow process.
In addition, in one embodiment of the invention, after electric energy receiving system 120 enters wireless charging flow process, second battery manager 132 is also for when detecting that the second electrokinetic cell breaks down and this fault is the level fault of the second electrokinetic cell, control electric energy receiving system 120 and send the instruction of limit power delivery to electric energy generator 110, so that electric energy generator 110 carries out to electric energy receiving system 120 delivery of electrical energy limitting power, further, if this fault is the secondary failure of the second electrokinetic cell, then the second battery manager 132 controls the second electrokinetic cell stopping charging, to guarantee the safety of charging device.
Generally speaking, in the above examples, cell managing device 130 have to vehicle mounted dynamic battery carry out temperature sampling, voltage sample, to power battery charging and discharging current sampling function, there is the function calculating battery dump energy, and send to relevant electric component by CAN communication bundle of lines control signal, to realize the management to battery functi on.
Shown in composition graphs 1, Fig. 2 and Fig. 3, the embodiment of the present invention for the wireless charging system 100 of electric automobile to electric automobile, also comprise: the first high-tension distribution box 140 and the second high-tension distribution box 150.Wherein, first high-tension distribution box 140 is electrically connected with electric energy generator 110, first electrokinetic cell and the first battery manager 131 respectively by high-voltage wiring harness, first high-tension distribution box 140 is controlled by the first battery manager 131, to control conducting and the disconnection of wireless discharge loop; Second high-tension distribution box 150 is electrically connected with electric energy receiving system 120, 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 conducting and the disconnection in wireless charging loop.Wherein, as a concrete example, first high-tension distribution box 140 and the second high-tension distribution box 150 are all high tension apparatus of a break-make big current, it is inner containing multiple contactor, first battery manager 131 is by transmitting control signal to the first high-tension distribution box 140, and second battery manager 132 by transmitting control signal to the second high-tension distribution box 150, the closed of its internal relay can be controlled and turn off, thus reach the object controlling big current break-make, namely control high-voltage radio to fill, the conducting of discharge loop (loop such as powered by vehicle mounted dynamic battery) and disconnection.As concrete example, such as high-tension distribution box is after receiving the wireless charging contactor pickup signal that cell managing device sends over, and the wireless charging contactor adhesive of high-tension distribution box inside, the conducting of wireless charging loop, charging starts.At the end of charging, cell managing device sends wireless charging contactor cut-off signal, then the wireless communication charging contactor of high-tension distribution box inside disconnects, and wireless charging loop disconnects.
Composition graphs 1 to Fig. 4, the embodiment of the present invention be according to electromagnetic induction principle for the operation principle of electric automobile to the wireless charging system 100 of electric automobile, by being contained in primary winding (i.e. transmitting coil) on the first electric automobile to the secondary coil be contained on the second electric automobile (i.e. receiving coil) electric energy transmitting, charge with the storage battery (i.e. the second electrokinetic cell) realized the second electric automobile.In order to realize wireless charging, first electric automobile and the second electric automobile must install supporting equipment, carry out information interaction by home control network communication protocol between transmitting terminal (electric energy generator 110) and receiving terminal (electric energy receiving system 120), the content of communications protocol comprises identification, battery information, charging control signal and fault-signal etc.Transmitting end equipment (electric energy generator 110) that electric automobile charges can detect neighbouring receiving terminal (electric energy receiving system 120).
What deserves to be explained is, in charging process, wireless charging device needs to have monitoring and defencive function, processes the abnormal conditions that whole system occurs.Wireless charging mode also needs the criterion of clear and definite charging complete, in case stopping power battery overcharge.Wireless charging system can record charge information.
Further, as shown in Figures 1 to 4, electric energy generator 110 mainly comprises: wireless communication module 112(is not shown for frequency up converter 111, first), first detection module 113(is not shown), transmitting coil 114 and the first control module.
Wherein, frequency up converter 111 is for being converted to the alternating current of predeterminated frequency by the high voltage direct current provided from the first electrokinetic cell, predeterminated frequency presets according to the actual requirements.
First wireless communication module 112 is for carrying out wireless telecommunications with electric energy receiving system 120; as a concrete example; first wireless communication module 112 such as can carry out information interaction by home control network communication protocol and electric energy receiving system 120, and the content of communications protocol such as comprises: battery information, charging control signal and safeguard protection signal etc.
First detection module 113 is for carrying out fault detect to electric energy generator 110.Specifically, in charging process, charging device needs to have monitoring and defencive function, processes with the abnormal conditions occurred whole system.Namely electric energy generator 110 has intelligent monitoring function and communication function.Such as: the self-inspection of electric energy generator 110 is realized by first detection module 113, and electric energy generator 110 and the communication of electric energy receiving system 120 can be realized by the first wireless communication module 112, wherein, the first wireless communication module 112 can adopt the Radio Transmission Technologys such as bluetooth, infrared or ZigBee to realize.
Transmitting coil 114 for alternating current is emitted to electric energy receiving system 120 with the form of electromagnetic field, specifically, by the alternating magnetic field of certain limit can be produced during alternating current around it in transmitting coil 114.
First control module is used for controlling above-mentioned frequency up converter 111, first wireless communication module 112, first detection module 113 and transmitting coil 114.
In addition, electric energy generator 110 also comprises: the first connector 116, and electric energy generator 110 carries out communication by the first connector 116 and the first battery manager 131.More specifically, electric energy generator 110 passes through CAN communication breath line, self-test signal line, the fault-signal line of the first connector 116 and the first battery manager 131, and corresponding low-voltage power supply line is connected, for carrying out communication with the multiple parts on the first electric automobile.Comprising the CAN communication holding wire of the first battery manager 131, self-test signal line and fault-signal line, and low-voltage power supply line.
Electric energy receiving system 120 mainly comprises: receiving coil 121, second wireless communication module 122, second detection module 123, rectifier 124, dc-dc 125 and the second control module 126.
Wherein, receiving coil 121 is for producing induced current to receive the electric energy from transmitting coil 114 in the alternating magnetic field that produces at transmitting coil 114.In other words, namely when transmitting coil 114 produces alternating magnetic field, as long as receiving coil 121 is in transmitting coil 114 surrounding certain limit, based on electromagnetic induction principle, receiving coil 121 just can produce induced current, thus receives from the electric energy in transmitting coil 114.
Second wireless communication module 122 is for carrying out wireless telecommunications with electric energy generator 110.Namely to be set to the first wireless communication module suitable for the second wireless communication module.As a concrete example, the second wireless communication module 122 such as can carry out information interaction by home control network communication protocol and electric energy generator 110, and the content of communications protocol such as comprises: battery information, charging control signal and safeguard protection signal etc.
Second detection module 123 is for carrying out fault detect to electric energy receiving system 120.Namely detecting electric energy receiving system 120 is there is fault etc., and Detection Information etc. can be sent to electric energy receiving system 110.Specifically, in charging process, charging device needs to have monitoring and defencive function, processes with the abnormal conditions occurred whole system.
Rectifier 124 is for being converted to direct current by the alternating current from receiving coil 121.
Dc-dc 125 is the second power battery charging after the direct current provided from rectifier 124 being carried out to voltage transitions (such as boosting or step-down), to meet voltage requirements during the second power battery charging.
Second control module 126 is for controlling above-mentioned receiving coil 121, second wireless communication module 122, second detection module 123, rectifier 124 and dc-dc 125.Wherein, comprise: the second control module 126 is according to the power output of the information of the second electrokinetic cell and charge power demand modeling dc-dc 125, to meet power demand during the second power battery charging, thus raising charge efficiency, reliability when guaranteeing the second power battery charging and fail safe.
Further, electric energy receiving system 120 also comprises: the second connector 127.Electric energy receiving system 120 carries out communication by the second connector 127 and the second battery manager 132.More specifically, electric energy receiving system 120 passes through CAN communication breath line, self-test signal line, the fault-signal line of the second connector 127 and the second battery manager 132, and corresponding low-voltage power supply line is connected, for carrying out communication with the multiple parts on the second electric automobile.
In one particular embodiment of the present invention, electric energy generator 110 to be positioned on the second electric automobile and electric energy receiving system 120 is positioned on the first electric automobile.In other words, namely electric energy generator 110 also can receive electric energy as electric energy receiving system, and electric energy receiving system 120 also can send electric energy as electric energy generator.Further, transmitting coil 114 also can receive electric energy as receiving coil, and receiving coil 121 also can launch electric energy as transmitting coil.
As a concrete example, this is used for electric automobile and operationally supports the use, to realize the wireless charging between electric automobile mainly through charging control strategy and wireless charging system the wireless charging system 100 of electric automobile.Wherein, what charging control strategy mainly described is to the concrete operations flow process of vehicle mounted dynamic battery charging, and wireless charging system mainly comprise be arranged on onboard wireless charging ECU(in electric motor car and the part of electric energy generator or electric energy receiving system), coil, cell managing device, vehicle mounted dynamic battery, high-tension distribution box and instrument etc.It should be noted that, vehicle just must allow charging under dead ship condition, the condition that vehicle mounted dynamic battery must meet wireless charging just allows to carry out wireless charging, and needs as far as possible close between Wireless charging coil on two electric automobiles, can improve charge efficiency.In addition, need be determined the need of charging by wireless charging shift knob by user, charging modes is wireless charging, and wireless charging system has perfect safety monitoring function, and can change charge power according to on-vehicle battery state.In wireless charging process, onboard wireless charging ECU has two kinds of mode of operations: one is discharge mode, and one is charge mode.Onboard wireless charging ECU mode of operation in two electric motor cars coupling just must can carry out wireless charging mutually; After coupling completes, onboard wireless charging ECU no longer responds the wireless charging request of other electric motor car, until wireless charging terminates.As a concrete example, when onboard wireless charging ECU is operated in discharge condition, when namely wireless charging being carried out to another electric motor car, discharge loop is: vehicle mounted dynamic battery, and---high-tension distribution box---namely go out by the charge transport of coil by vehicle mounted dynamic battery by down-conversion circuitry---coil---external coil.When onboard wireless charging ECU is operated in charged state, when namely receiving the electricity that another electric motor car transmits, then charge circuit is: external coil---coil---rectification circuit---DC-DC change-over circuit---high-tension distribution box---vehicle mounted dynamic battery, namely receive the electricity transmitted from another electric motor car by coil, charge to vehicle mounted dynamic battery.
Wherein, above-mentioned onboard wireless charging ECU, energy and neighbouring wireless charging ECU carry out wireless telecommunications, and can realize carrying out CAN communication with the Other related equipment on car.Wireless charging ECU both can be gone out the charge transport of vehicle mounted dynamic battery by coil, to other electric motor car charging, also can receive outside electric motor car by coil and send out the electricity transmitted, charge to vehicle mounted dynamic battery.In addition, wireless charging ECU according to the charge power demand of car load, can change power output, charges to vehicle mounted dynamic battery.
Above-mentioned cell managing device have to vehicle mounted dynamic battery carry out temperature sampling, voltage sample, to power battery charging and discharging current sampling function, there is the function calculating battery dump energy, and send to relevant electric component by CAN communication bundle of lines control signal, to realize the management to battery functi on.
Vehicle mounted dynamic battery refers to and is arranged in electric motor car, is the energy storage device that electric motor car provides Power output and powers for other power consumption equipments on car, can repeatedly charges.
High-tension distribution box is the high tension apparatus of a break-make big current, it is inner containing multiple contactor, cell managing device, by transmitting control signal to high-tension distribution box, can control the closed of its internal relay and turn off, thus reaching the object controlling charge circuit break-make.
In addition, in wireless charging system, cell managing device and the onboard wireless ECU that charges is connected by CAN line.Onboard wireless charging ECU is connected with high-tension distribution box by high-voltage wiring harness.High-tension distribution box is connected with vehicle mounted dynamic battery by high-voltage wiring harness.Wireless charging ECU is connected by high-voltage wiring harness with coil.Wireless charging ECU is with a low pressure connector, and its effect carries out communication with the parts in electric motor car, comprising the CAN communication holding wire with cell managing device, and 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.This wireless charging shift knob is controlled by user, and wireless charging shift knob is divided into two by function difference, and one is discharge mode button, and one is charge mode button.After discharge mode button is pressed, electric automobile externally discharges, to another charging electric vehicle; After charge mode button is pressed, be then the electricity that the outside electric motor car of reception transmits, charge to vehicle mounted dynamic battery.
Press this wireless charging shift knob when instrument occurs that wireless charging is pointed out, then the wireless charging ECU of two electric motor cars starts to carry out mating (process namely transmitting and receiving wireless communication signal), if the match is successful, then and beginning of charging.In wireless charging process, as long as just have an electric motor car to press wireless charging shift knob in two electric motor cars of wireless charging, then end of charging.Cell managing device detects this switching signal.
Stopping for charging refers to that car load hangs over P shelves or N shelves, and other high voltage electric equipment of car load also can work, except motor simultaneously.In wireless charging process, do not respond the change of gear signal.
As shown in Figure 5, the embodiment of the present invention mainly comprise 2 networks for the whole wireless charging communication network of electric automobile to the wireless charging system 100 of electric automobile, one is the wireless charging system communication network on the first electric automobile, and another is the wireless charging system communication network on the second electric automobile.Wherein, the wireless charging system communication network on each electric automobile includes Power Environment Monitoring Network, comfortable net, battery subnet, wireless charging subnet and onboard wireless charging net.Wherein, onboard wireless charging ECU-A(and electric energy generator) (i.e. electric energy generator) be arranged on the first electric automobile, onboard wireless charging ECU-B(and electric energy receiving system) (i.e. electric energy receiving system) is arranged on the second electric automobile, and onboard wireless charging ECU-A(and electric energy generator) comprising: frequency up converter 111, transmitting coil 114 and the first control module.Onboard wireless charging ECU-B(and electric energy receiving system) comprising: receiving coil 121, rectifier 124, dc-dc 125 and the second control module 126.
Particularly, the communication network of battery subnet mainly between battery information collector and cell managing device 130, communication speed can be set to 250kbps, battery information collector gathers voltage and the temperature information of vehicle mounted dynamic battery, and send to cell managing device 130 by battery subnet, cell managing device 130 gathers vehicle mounted dynamic battery information, carries out respective handling.
Wireless charging subnet is onboard wireless charging ECU-A(and electric energy generator mainly) and onboard wireless to charge ECU-B(and electric energy receiving system) between communication network, onboard wireless charging ECU-B(and electric energy receiving system) to onboard wireless charging ECU-A(and electric energy generator) send the current state information of vehicle mounted dynamic battery B, and charge power demand, onboard wireless charging ECU-A(and electric energy generator) according to the battery information received, do corresponding adjustment.Onboard wireless charging ECU-A(and electric energy generator) calculate charge capacity, and send to onboard wireless charging ECU-B(and electric energy receiving system).Onboard wireless charging ECU-A(and electric energy generator) and onboard wireless to charge ECU-B(and electric energy receiving system) between carry out wireless telecommunications.
Onboard wireless charging host will refer to the communication network between cell managing device 130 and onboard wireless charging ECU.Cell managing device 130 carries out communication by CAN line and the onboard wireless ECU that charges, the speed of communication can be set to 250kbps, cell managing device 130 sends battery status information to onboard wireless charging ECU in real time, when onboard wireless charging ECU fault, cell managing device receives the fault-signal that onboard wireless charging ECU sends, and stops wireless charging.
The communication network of Power Environment Monitoring Network mainly between on-board high-voltage device, when wireless charging carries out, the speed of a motor vehicle is zero, and car load is in N shelves or P shelves, and cell managing device 130 sends wireless charging signal to other high-tension apparatuses, to coordinate the carrying out of wireless charging.Such as send signal to electric machine controller, forbid that power of motor exports.
If comfortable host's cell managing device 130 is to the communication network between instrument, so that instrument shows wireless charging index signal, instrument wireless charging switching signal sends to cell managing device 130 by instrument, as startup and the stop signal of wireless charging.
Shown in composition graphs 6 and Fig. 7, for electric automobile A(i.e. the first electric automobile) to electric automobile B(i.e. the second electric automobile) carry out wireless charging, being described for the charging strategy of electric automobile to the wireless charging system 100 of electric automobile the embodiment of the present invention.The charging strategy of this wireless charging system 100 is specific as follows:
First, under normal circumstances, high-tension electricity in electric motor car, when P shelves or N shelves are hung in electric motor car, after static, the wireless charging ECU on car starts working, detect du vehicule every 1S and whether have wireless charging device, if wireless charging device do not detected in 30S, then wireless charging ECU quits work.If have wireless charging device near detecting, then send wireless charging request to cell managing device.
Onboard wireless charging ECU sends wireless charging request signal to cell managing device, and cell managing device sends charge request signal to instrument, and user is the need of carrying out wireless charging in instrument prompting.If in instrument prompting wireless charging request signal 30S, user does not press the wireless charging button on instrument desk, then wireless charging is forbidden in instrument display.If press the discharge mode button on electric motor car A, and the charge mode button pressed on electric motor car B, wireless charging ECU-A(and electric energy generator) (i.e. electric energy generator) and wireless charging ECU-B(and electric energy receiving system) (i.e. electric energy receiving system) confirm operating state, the match is successful.If electric motor car A and electric motor car B is charge mode, or is discharge mode simultaneously simultaneously, then mate unsuccessful, can not wireless charging be carried out.If the match is successful for the wireless charging ECU of two electric motor cars, then in wireless charging process, no longer respond the wireless charging request of other electric motor car.
After the match is successful, for electric motor car A, first battery manager A first detects the SOC(dump energy of vehicle mounted dynamic battery A) whether be less than 30%, as dump energy is less than 30%, then the first battery manager A does not respond wireless charging ECU-A(and electric energy generator) charge request, forbid wireless charging.For electric motor car B, second battery manager B first detects the SOC(dump energy of vehicle mounted dynamic battery B) whether be greater than 70%, as dump energy is greater than 70%, then the second battery manager B does not respond wireless charging ECU-B(and electric energy receiving system) charge request, forbid wireless charging.
If vehicle mounted dynamic battery A dump energy is greater than 30%, and vehicle mounted dynamic battery B dump energy is less than 70%, then whether cell managing device detection vehicle mounted dynamic battery exists fault, comprise that electrokinetic cell monomer temperature is too high, electrokinetic cell monomer voltage is too high, electrokinetic cell electric leakage, electrokinetic cell sample line disconnect, the fault such as cell managing device and battery information collector communication failures, if there is above-mentioned fault, then forbid wireless charging.Cell managing device sends alarm signal to instrument, and wireless charging is forbidden in instrument display.
If the electrokinetic cell fault-free that cell managing device detects, then transmit control signal to high-tension distribution box, control the adhesive of wireless charging contactor, cell managing device sends a signal to instrument, and instrument display wireless charging indicator light, enters wireless charging flow process.
Wireless charging contactor is arranged on high-tension distribution box inside, and its effect is the switch be connected with vehicle mounted dynamic battery as onboard wireless charging ECU high-tension circuit part.
After entering wireless charging flow process, the battery information of the second battery manager B transmission electrokinetic cell B and charge power request are to wireless charging ECU-B(and electric energy receiving system), onboard wireless charging ECU-B(and electric energy receiving system) send this information to wireless charging ECU-A(and electric energy generator).Wireless charging ECU-A(and electric energy generator) receive this information after, regulate charging power output, by the outside transmitting energy of coil.Wireless charging ECU-B(and electric energy receiving system) receive the energy from electric motor car A by coil, vehicle mounted dynamic battery B is charged.The battery information wherein sent comprises power battery pack B current residual electricity, charging current, charge power the highest single battery voltage, minimum single battery voltage, the highest single battery temperature, minimum single battery temperature, and electrokinetic cell fault message.
Wireless charging ECU-A(and electric energy generator) detect wireless charging device always and whether there is exception in the process of charging, the content of detection comprises coil fault, wireless charging ECU output abnormality and wireless charging ECU communication failure; Wireless charging ECU-B(and electric energy receiving system) then magnetic test coil fault, DC-DC translation exception and wireless charging ECU communication failure.If there is as above various fault, then wireless charging ECU sends charging termination request signal to cell managing device.Cell managing device receives disconnection of wireless charging contactor after this information, stops wireless charging, and sends charge fault signal to instrument, instrument display wireless charging device fault.Simultaneously wireless charging ECU-A(and electric energy generator) and wireless charging ECU-B(and electric energy receiving system) mutually send fault message.
In wireless charging process, cell managing device detects vehicle-mounted power battery information always, and the content of detection comprises whether temperature of powered cell is too high, whether electrokinetic cell voltage is too high, whether charging current is excessive, whether battery information collector exists fault.Temperature of powered cell is too high, electrokinetic cell overtension and charging current are crossed major break down and should a point situation be processed, and can be divided into level fault and secondary failure.When there is level fault (general alarm) in vehicle mounted dynamic battery A, first battery manager A sends limit power charge information to wireless charging ECU-A(and electric energy generator), wireless charging ECU-A(and electric energy generator) reduce current charge power, and send fault message to wireless charging ECU-B(and electric energy receiving system), carry out the charging of limit power.When there is level fault (general alarm) in vehicle mounted dynamic battery B, second battery manager B sends limit power charge information to wireless charging ECU-B(and electric energy receiving system), wireless charging ECU-B(and electric energy receiving system) send this information to wireless charging ECU-A(and electric energy generator), wireless charging ECU-A(and electric energy generator) reduce current charge power, carry out the charging of limit power.If there is secondary failure (seriously reporting to the police), or battery information collector fault, then cell managing device disconnection of wireless charge circuit, wireless charging stops.
In wireless charging process, cell managing device detects battery whether charging complete.For electric motor car B, when SOC is 100%, or user presses charge mode shift knob, then wireless charging completes, and the second battery manager B transmits control signal to high-tension distribution box B, disconnection of wireless charging contactor.Simultaneously, first battery manager A sends charging complete information to wireless charging ECU-B(and electric energy receiving system), wireless charging ECU-B(and electric energy receiving system) send charging completion signal again to wireless charging ECU-A(and electric energy generator), wireless charging ECU-A(and electric energy generator) stop to wireless charging ECU-B(and electric energy receiving system) transmitting energy.For electric motor car A, then when SOC is less than 20%, the first battery manager A sends the not enough information of vehicle mounted dynamic battery electricity to wireless charging ECU-B(and electric energy receiving system), and disconnection of wireless charging contactor; After user presses charge mode shift knob, then wireless charging completes.
In wireless charging process, first battery manager A mono-is straight through detection electrokinetic cell A charging current and gather electrokinetic cell A voltage, calculate power battery charging electricity, send to instrument A so that display, send charge capacity information to wireless charging ECU-A(and electric energy generator) simultaneously, wireless charging ECU-A(and electric energy generator) send charge capacity information to wireless charging ECU-B(and electric energy receiving system), wireless charging ECU-B(and electric energy receiving system) send this information to the second battery manager B, second battery manager B sends charge capacity signal again to instrument B, so that display.
In wireless charging process, vehicle does not respond gear switch, and cell managing device sends wireless charging state information to electric machine controller, and motor inactivity exports.After wireless charging terminates, cell managing device sends charging ending message to electric machine controller, allows normal vehicle operation.
Specifically, as shown in Figure 6, for according to an embodiment of the invention for the first electric automobile control of discharge flow chart of electric automobile to the wireless charging system of electric automobile, comprise the steps:
Step S601: electric automobile A(i.e. the first electric automobile) upper high-tension electricity.Namely the first electric automobile travels.
Step S602: travel to electric motor car B(second electric automobile) other static after, vehicle search near wireless charging ECU signal.Namely 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(and electric energy generator) whether (being arranged on electric automobile A) detect wireless charging device signal.In other words, namely judge whether the electric energy generator of the first electric automobile detects the wireless communication signal that the second electric automobile sends.
Step S604: judge that whether the stand-by period does not also detect wireless charging device more than 30S.If so, then perform step S616, otherwise perform step S605.Namely judge whether electric energy generator detects wireless communication signal in Preset Time.
Step S605: onboard wireless charging ECU-A(and electric energy generator) to the first battery manager A(i.e. the first battery manager) send wireless electric discharge request signal.Namely, after electric energy generator detects the wireless communication signal of electric energy receiving system in Preset Time, electric energy generator sends electric discharge to the first battery manager and asks.
Step S606: the first battery manager A sends a signal to the instrument on instrument A(and electric automobile A), instrument A points out user the need of wireless electric discharge.Namely now electric energy generator is in electric discharge request stage.
Step S607: judge whether user presses discharge mode button, if so, then performs step S609, otherwise performs step S608.
Step S608: before user does not press discharge mode button, judges that whether the stand-by period is more than 30S, if so, then performs step S616, otherwise returns execution step S607.
In other words, namely judge whether electric energy generator receives the information allowing electric discharge in Preset Time.
Step S609: wireless charging ECU-A(and electric energy generator) to wireless charging ECU-B(and electric energy receiving system) send discharge mode state information.Namely in Preset Time, user presses discharge mode button, then judge that electric energy generator receives the information allowing electric discharge, electric energy generator enters discharge mode, and feeds back its discharge mode state information to electric energy receiving system.
Step S610: the match is successful for wireless charging.Namely now electric energy generator and electric energy receiving system wireless the match is successful.
Step S611: the wireless charging request no longer responding other electric automobile.Namely when electric energy generator and electric energy receiving system wireless after the match is successful, both all no longer respond the wireless charging request of other automobiles.
Step S612: wireless charging ECU-A(and electric energy generator) be operated in discharge mode.Namely electric energy generator is in discharge mode.
Step S613: the first battery manager A detects the SOC(dump energy of vehicle mounted dynamic battery A) whether be less than 30%, if so, then perform step S616, otherwise perform step S614.
Step S614: judge whether electrokinetic cell A exists fault, if so, then performs step S615, otherwise performs step S617.
Specifically, above-mentioned steps S613 and step S614 i.e. the first battery manager judges whether the first electrokinetic cell meets the process of default discharging condition.
Step S615: instrument A display electrokinetic cell fault, and perform step S616 further.Namely the first electrokinetic cell does not meet default discharging condition, then judge that the first electrokinetic cell breaks down.
Step S616: forbid wireless charging.Namely, when the first electrokinetic cell breaks down, charging flow stops, and forbids wireless charging.
Step S617: the first battery manager A controls the wireless charging contactor in adhesive high-tension distribution box A.Namely, when the first electrokinetic cell meets default discharging condition, the first battery manager controlled discharge loop conducting, now electric energy generator is in discharge mode, and is powered to electric energy receiving system by the first electrokinetic cell.
Step S618: enter wireless charging flow process.Namely electric energy generator has entered wireless discharge flow path, and meanwhile, electric energy receiving system enters wireless charging flow process.
Step S619: wireless charging ECU-A(and electric energy generator) receive wireless charging ECU-B(and electric energy receiving system) (being arranged on electric automobile B) information of electrokinetic cell B of sending.Namely electric energy generator receives the information of the second electrokinetic cell that electric energy receiving system sends.
Step S620: wireless charging ECU-A(and electric energy generator) regulate charge power to export, by the outside transmitting energy of coil.Namely electric energy generator is according to the information of the second electrokinetic cell, regulates discharge power, to make this discharge power be suitable for the second power battery charging, and by transmitting coil to electric energy receiving system electric energy transmitting.
Step S621: wireless charging ECU-A(and electric energy generator) detect the ruuning situation of wireless charging device.Namely electric energy generator carries out the process of self-inspection to it.
Step S622: judge transmitting coil whether fault, if so, then performs step S623, otherwise performs step S625.
Step S623: stop wireless charging, sends fault message and shows wireless charging device fault message to the first battery manager A, instrument A.And perform step S624 further.I.e. electric energy generator fault, and its fault message is sent to the first battery manager.
Step S624: send fault message to wireless charging ECU-B(and electric energy receiving system).Fault message by electric energy generator is sent to electric energy receiving system.
Step S625: judge wireless charging ECU-A(and electric energy generator) whether output abnormality, if so, then return and perform step S623, otherwise perform step S626.
Step S626: judge wireless charging ECU-A(and electric energy generator) whether communication failure, if so, then perform and return step S623, otherwise perform step S627.
Above-mentioned steps 621 to step S626, in other words, namely in discharge process, electric energy generator carry out in real time self-inspection with detect its whether with electric energy receiving system generation communication failure, if testing result occurs abnormal, then feed back to the first battery manager, then the first battery manager control first electrokinetic cell stop electric energy generator is powered.
Step S627: the first battery manager A detects the battery information of vehicle mounted dynamic battery A.Namely the first battery manager detects the information of the first electrokinetic cell.
Step S628: judge that whether the temperature of electrokinetic cell A is too high, if so, then performs step S629, otherwise performs step S632.
Step S629: judge whether electrokinetic cell A is general alarm, if so, then performs step S630, otherwise performs step S631.
Step S630: the first battery manager A sends limit power charge information, wireless charging ECU-A(and electric energy generator) reduce current charge power.Namely the first electrokinetic cell breaks down and this fault is the level fault of the first electrokinetic cell, and now, electric energy generator carries out to electric energy receiving system the delivery of electrical energy limitting power.
Step S631: stop wireless charging, instrument A shows electrokinetic cell fault message.Namely, when the fault of the first above-mentioned electrokinetic cell is secondary failure, the first battery manager controls the first electrokinetic cell and stops electric discharge.
Step S632: judge that whether the voltage of electrokinetic cell A is too high, if so, then performs step S629, otherwise performs step S633.
Step S633: judge that whether charging current is excessive, if so, then performs step S629, otherwise performs step S634.
Step S634: judge battery information collector whether fault, if so, then performs step S631, otherwise performs step S635.
Step S635: judge whether user presses discharge mode shift knob, if so, then performs step S636, otherwise performs step S637.Namely judge whether user has the intention stopping electric discharge, if user presses shift knob, then represent that user will stop discharge flow path.
Step S636: the first battery manager A sends charging complete information to wireless charging ECU-A(and electric energy generator), and disconnection of wireless charging contactor.Namely user presses shift knob, now charging process completes, first electrokinetic cell stops powering to electric energy generator, and charging complete information is sent to electric energy generator by the first battery manager, stops electric energy generator electric energy transmitting to control electric energy generator.
Step S637: judge whether the SOC of vehicle mounted dynamic battery A is less than 20%, if so, then performs step S638, otherwise performs step S619.Namely judge whether the first electrokinetic cell also meets and preset discharging condition.
Step S638: the first battery manager A sends the not enough information of vehicle mounted dynamic battery electricity to wireless charging ECU-B(and electric energy receiving system), and disconnection of wireless charging contactor.Namely when the dump energy of the first electrokinetic cell is lower than the first preset value, then judge that the first electrokinetic cell does not meet and preset discharging condition, then stop electric discharge.
Step S639: wireless charging ECU-A(and electric energy generator) send charging complete information to wireless charging ECU-B(and electric energy receiving system).Namely, after charging complete, electric energy generator feedback charging complete information is to electric energy receiving system.
Step S640: wireless charging completes.
Fig. 7 is according to an embodiment of the invention for the control flow chart to second charging electric vehicle of electric automobile to the wireless charging system of electric automobile, specifically comprises the steps:
Step S701: high-tension electricity on vehicle B.Namely the second electric automobile travels.
Step S702: after stationary vehicle, the wireless charging ECU signal near vehicle search.Namely electric energy receiving system and electric energy generator set up the process of wireless telecommunications.
Step S703: judge onboard wireless charging ECU-B(and electric energy receiving system) wireless charging device signal whether detected.Namely judge whether the electric energy generator of the first electric automobile detects the wireless communication signal that electric energy receiving system sends.
Step S704: judge that whether the stand-by period does not also detect wireless charging device signal more than 30S, if so, then perform step S716, otherwise perform step S705.Namely judge whether electric energy generator arrives wireless communication signal in Preset Time.
Step S705: onboard wireless charging ECU-B(and electric energy receiving system) send wireless charging request signal to the second battery manager B.Namely, after electric energy generator detects the wireless communication signal of electric energy receiving system in Preset Time, electric energy receiving system sends charge request to the second battery manager.
Step S706: the second battery manager B sends a signal to instrument B, and instrument B points out user the need of wireless charging.Namely now electric energy receiving system is in the charge request stage.
Step S707: judge whether user presses charge mode button, if so, then performs step S709, otherwise performs step S708.
Step S708: judge that whether the stand-by period is more than 30S, if so, then performs step S716, otherwise performs step S708.
In other words, namely judge whether electric energy receiving system receives the information allowing charging in Preset Time.
Step S709: wireless charging ECU-B(and electric energy receiving system) to wireless charging ECU-A(and electric energy generator) send charge mode information.Namely in Preset Time, user presses charge mode button, then judge that electric energy receiving system receives the information allowing electric discharge, electric energy receiving system enters charge mode, and sends the information allowing charging to electric energy generator.
Step S710: the match is successful for wireless charging.Namely now electric energy receiving system and electric energy generator wireless the match is successful.Step S711: the wireless charging request no longer responding other electric motor car.Namely when electric energy receiving system and electric energy generator wireless after the match is successful, both all no longer respond the wireless charging request of other automobiles.
Step S712: wireless charging ECU-B(and electric energy receiving system) be operated in charge mode.Namely now electric energy receiving system is in charge mode.
Whether the SOC that the step S713: the second battery manager B detects vehicle mounted dynamic battery B is greater than 70%, if so, then performs step S716, otherwise performs step S714.
Step S714: judge whether electrokinetic cell B exists fault, if so, then performs step S715, otherwise performs step S717.
Specifically, above-mentioned steps S713 and step S714 i.e. the second battery manager judges whether the second electrokinetic cell meets the process of preset charged condition.
Step S715: instrument B display electrokinetic cell fault, and perform step S716 further.Namely the second electrokinetic cell does not meet preset charged condition, then judge that the second electrokinetic cell breaks down.
Step S716: forbid wireless charging.Namely, when the second electrokinetic cell breaks down, charging flow stops, and forbids wireless charging.
Step S717: the second battery manager B controls the wireless charging contactor in adhesive high-tension distribution box B.Namely, when the second electrokinetic cell meets preset charged condition, the second battery manager controls charge circuit conducting, and now electric energy receiving system is in charge mode, and by receiving the electric energy of electric energy generator, to power to the second electrokinetic cell.
Step S718: enter wireless charging flow process.Namely electric energy receiving system enters wireless charging flow process, and meanwhile, electric energy generator enters wireless discharge flow path.
Step S719: the second battery manager B sends the battery information of electrokinetic cell B to wireless charging ECU-B(and electric energy receiving system).Namely the second battery manager starts the battery information of the second electrokinetic cell to electric energy receiving system, to determine to be suitable for the charge power to the second power battery charging.
Step S720: wireless charging ECU-B(and electric energy receiving system) receive transmission by receiving coil and pass the energy of coming.Namely electric energy receiving system is by the electric energy of its receiving coil reception from electric energy generator.
Step S721: wireless charging ECU-B(and electric energy receiving system) detect the ruuning situation of wireless charging device.Namely electric energy receiving system carries out self-inspection process to it is detected.
Step S722: judge whether receiving coil breaks down, if so, then performs step S723, otherwise performs step S725.
Step S723: stop wireless charging, the information that breaks down shows wireless charging device fault message to the second battery manager B, instrument B.Namely electric energy receiving system breaks down, and its fault message is sent to the second battery manager.
Step S724: the information that breaks down is to wireless charging ECU-A(and electric energy generator).Fault message by electric energy receiving system is sent to electric energy generator.
Step S725: judge whether dc-dc breaks down, if so, then performs step S723, otherwise performs step S726.
Step S726: judge wireless charging ECU-B(and electric energy receiving system) whether communication failure, if so, then perform step S723, otherwise perform step S727.
Above-mentioned steps S721 is to step S126, in other words, namely in charging process, electric energy receiving system carry out in real time self-inspection with detect its whether with electric energy generator generation communication failure, if testing result occurs abnormal, then feed back to the second battery manager, then the second battery manager controls the second electrokinetic cell stopping charging.
Step S727: the second battery manager B detects the battery information of vehicle mounted dynamic battery B.Namely the second battery manager detects the information of the second electrokinetic cell.
Step S728: judge that whether the temperature of electrokinetic cell B is too high, if so, then performs step S729, otherwise performs step S732.
Step S729: judge whether electrokinetic cell is general alarm, if so, then performs step S730, otherwise performs step S731.
Step S730: the second battery manager B sends limit power charge information, wireless charging ECU-B(and electric energy receiving system) send limit power information to wireless charging ECU-A(and electric energy generator), reduce current charge power.Namely the second electrokinetic cell breaks down and this fault is the level fault of the second electrokinetic cell, now, electric energy receiving system sends limit power information to electric energy generator, electric energy generator regulates discharge power to export according to this limit power information, is suitable for the second power battery charging to make this power.
Step S731: stop wireless charging, instrument B shows electrokinetic cell fault message.Namely, when the second above-mentioned electrokinetic cell fault is secondary failure, the second battery manager controls the second electrokinetic cell and stops charging.
Step S732: judge that whether the voltage of electrokinetic cell B is too high, if so, then performs step S729, otherwise performs step S733.
Step S733: judge that whether charging current is excessive, if so, then performs step S729, otherwise performs step S734.
Step S734: judge battery information collector whether fault, if so, then performs step S731, otherwise performs step S735.
Step S735: judge whether user presses charge mode shift knob, if so, then performs step S737, otherwise performs step S736.Namely judge whether user has the intention stopping charging, if user presses charge switch button, then represent that user will stop charging flow.
Step S736: the second battery manager B judges whether wireless charging completes, and if so, then performs step S737, otherwise performs step S719.
Step S737: the second battery manager B sends charging complete information to wireless charging ECU-B(and electric energy receiving system), and disconnection of wireless charging contactor.Namely user presses shift knob, and now charging process completes, then charging complete information is sent to electric energy receiving system by the second battery manager, stops the second electrokinetic cell electric energy transmitting to control electric energy generator.
Step S738: wireless charging ECU-B(and electric energy receiving system) send charging complete information to wireless charging ECU-A(and electric energy generator).Namely after charging complete, charging complete information is sent to electric energy generator by electric energy receiving system, stops providing electric energy to electric energy receiving system to make electric energy generator.
Step S739: wireless charging completes.
According to the embodiment of the present invention for the wireless charging system of electric automobile to electric automobile, the wireless charging between electric automobile can be realized, decrease manual operation, thus improve the safety and reliability of electric automobile when charging, avoid in wired charging modes the charging connection device wearing and tearing plugging charging device and cause, degradation problem under connector service life of equipment.When ensureing enough hour of the distance (as when the distance of transmitting coil and receiving coil is within the scope of 200mm) of wireless charging between electric automobile, high efficiency delivery of electrical energy can be realized.In addition, the mode of wireless charging is easy and simple to handle, and user only need can realize wireless charging according to command prompt action button.Embodiments of the invention can carry out the charging of corresponding power for the real-time status of electric automobile power battery, to improve charge efficiency and the useful life of electrokinetic cell.In addition, by native system, user can be met out of doors to the demand of charging electric vehicle, prevent electric automobile from affecting the stroke of user in the process of moving because electricity exhausts, improve the applicability of electric automobile.
The invention allows for a kind of for the wireless charging method of electric automobile to electric automobile.Fig. 8 is according to an embodiment of the invention for the flow chart of electric automobile to the wireless charging method of electric automobile.
As shown in Figure 8, according to an embodiment of the invention for the wireless charging method of electric automobile to electric automobile, wherein, electric automobile comprises: the first electric automobile and the second electric automobile, first electric automobile is provided with electric energy generator, the first battery manager and the first electrokinetic cell, the second electric automobile is provided with electric energy receiving system, the second battery manager and the second electrokinetic cell.As a concrete example, first electrokinetic cell and the second electrokinetic cell can be vehicle mounted dynamic battery, refer to and be arranged on electric automobile, for the energy storage device that electric automobile provides Power output and powers for other power consumption equipments on car, 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.The method comprises the following steps:
Step S801, controls electric energy generator and wireless telecommunications set up by electric energy receiving system.Specifically, electric energy generator can detect the wireless communication signal that electric energy receiving system sends, to carry out wireless telecommunications each other.
Step S802, after setting up wireless telecommunications, control electric energy receiving system enters electric discharge request stage and controls electric energy receiving system and enters the charge request stage.
Step S803, the first battery manager judges 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 the first power battery charged state is not less than the first preset value and the first electrokinetic cell does not exist fault, judge that the first electrokinetic cell meets default discharging condition.When the state-of-charge of the second electrokinetic cell not higher than the second preset value and there is not fault in the second electrokinetic cell time, judge that the second electrokinetic cell meets preset charged condition.Wherein, the first preset value and the second preset value are and preset, as a concrete example, the first preset value such as but be not limited to the 30%, the second preset value such as but be not limited to 70%.
Step S804, if so, then controlling the first electrokinetic cell is that electric energy generator is powered.Wherein, be in the electric energy generator process of powering at control first electrokinetic cell, if the first electrokinetic cell breaks down and this fault is the level fault of the first electrokinetic cell time, then control electric energy generator carries out limitting delivery of electrical energy from power to electric energy receiving system; If when this fault is the secondary failure of the first electrokinetic cell, then controls the first electrokinetic cell and stop electric discharge, to guarantee the safety of charging device.
Further, control first electrokinetic cell be electric energy generator power time, when receiving discharge off instruction, or judge that the first electrokinetic cell does not meet default discharging condition, or when there is fault in electric energy receiving system, control the first electrokinetic cell to stop powering to electric energy generator, to guarantee reliability and the fail safe of charging process.
Step S805, electric energy generator according to the Information Pull electromagnetic induction of the second electrokinetic cell to electric energy receiving system wirelessly transmitting electrical energy.
More specifically, in one embodiment of the invention, electric energy generator judges the charge power being suitable for charging to the second electrokinetic cell according to the information of the second electrokinetic cell, and with this charge power to electric energy receiving system electric energy transmitting.Wherein, the information of the second electrokinetic cell such as includes but not limited to: the current residual electricity of the second electrokinetic cell, charging current, charge requirement power, the highest single battery voltage, minimum single battery voltage, the highest single battery temperature, minimum single battery temperature and electrokinetic cell fault message etc.Like this, electric energy generator can judge according to the information of above-mentioned battery the charge power that is suitable for charging to the second electrokinetic cell, and with this charge power to electric energy receiving system electric energy transmitting, thus ensure the charge efficiency higher to the second electrokinetic cell, guarantee the reliability to the second power battery charging and fail safe simultaneously.
Step S806, electric energy receiving system charges to the second electrokinetic cell.Wherein, when electric energy receiving system charges to the second electrokinetic cell, also comprise: if the second electrokinetic cell break down and this fault is the level fault of the second electrokinetic cell time, then control electric energy receiving system and send the instruction of limit power delivery, so that electric energy generator carries out to electric energy receiving system the delivery of electrical energy limitting power to electric energy generator; In addition, if this fault is the secondary failure of the second electrokinetic cell, then controls the second electrokinetic cell and stop charging, to guarantee the safety of charging device.
Further, when electric energy receiving system charges to the second electrokinetic cell, when receiving charging termination instruction, or the second electrokinetic cell does not meet preset charged condition, or when there is fault in electric energy receiving system, then electric energy receiving system stops the second power battery charging, to guarantee reliability and the fail safe of charging process.
According to the embodiment of the present invention for the wireless charging method of electric automobile to electric automobile, the wireless charging between electric automobile can be realized, decrease manual operation, thus improve the safety and reliability of electric automobile when charging, avoid in wired charging modes the charging connection device wearing and tearing plugging charging device and cause, degradation problem under connector service life of equipment.When ensureing enough hour of the distance (as when the distance of transmitting coil and receiving coil is within the scope of 200mm) of wireless charging between electric automobile, high efficiency delivery of electrical energy can be realized.In addition, the mode of wireless charging is easy and simple to handle, and user only need can realize wireless charging according to command prompt action button.Embodiments of the invention can carry out the charging of corresponding power for the real-time status of electric automobile power battery, to improve charge efficiency and the useful life of electrokinetic cell.In addition, by this method, user can be met out of doors to the demand of charging electric vehicle, prevent electric automobile from affecting the stroke of user in the process of moving because electricity exhausts, improve the applicability of electric automobile.Describe and can be understood in flow chart or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
In flow charts represent or in this logic otherwise described and/or step, such as, the sequencing list of the executable instruction for realizing logic function can be considered to, may be embodied in any computer-readable medium, for instruction execution system, device or equipment (as computer based system, comprise the system of processor or other can from instruction execution system, device or equipment instruction fetch and perform the system of instruction) use, or to use in conjunction with these instruction execution systems, device or equipment.With regard to this specification, " computer-readable medium " can be anyly can to comprise, store, communicate, propagate or transmission procedure for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium comprises following: the electrical connection section (electronic installation) with one or more wiring, portable computer diskette box (magnetic device), random-access memory (ram), read-only memory (ROM), erasablely edit read-only memory (EPROM or flash memory), fiber device, and portable optic disk read-only memory (CDROM).In addition, computer-readable medium can be even paper or other suitable media that can print described program thereon, because can such as by carrying out optical scanner to paper or other media, then carry out editing, decipher or carry out process with other suitable methods if desired and electronically obtain described program, be then stored in computer storage.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the application-specific integrated circuit (ASIC) of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium mentioned can be read-only memory, disk or CD etc.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention when not departing from principle of the present invention and aim, revising, replacing and modification.
Claims (22)
1. one kind for the wireless charging system of electric automobile to electric automobile, it is characterized in that, comprise: electric energy generator, electric energy receiving system and cell managing device, described cell managing device comprises the first battery manager and the second battery manager, wherein, described electric energy generator and described first battery manager are positioned on the first electric automobile, described electric energy receiving system and described second battery manager are positioned on the second electric automobile, described first electric automobile has the first electrokinetic cell, described second electric automobile has the second electrokinetic cell
Described electric energy generator, for sending electric discharge request when the wireless communication signal of described electric energy receiving system being detected to described first battery manager, and after described electric energy generator enters electric discharge request stage and described electric energy receiving system enters the charge request stage, enter wireless discharge flow path when described first electrokinetic cell meets default discharging condition, with according to the Information Pull electromagnetic induction of described second electrokinetic cell to described electric energy receiving system wirelessly transmitting electrical energy;
Described electric energy receiving system, for sending described wireless communication signal to described electric energy generator and sending charge request when receiving the feedback of described electric energy generator to described second battery manager, and after described electric energy generator enters electric discharge request stage and described electric energy receiving system enters the charge request stage, wireless charging flow process is entered when described second electrokinetic cell meets preset charged condition, with utilize wireless receiving to the electric energy provided from described electric energy generator be described second power battery charging, and the information of described second electrokinetic cell is sent to described electric energy generator,
Described first battery manager, for receiving the electric discharge request that described electric energy generator sends, and electric energy generator enters described electric discharge request stage according to described electric discharge Request Control, and when judging that described first electrokinetic cell meets described default discharging condition, controlling described first electrokinetic cell and entering described wireless discharge flow path to described electric energy generator electric energy transmitting to make described electric energy generator;
Described second battery manager, for receiving the charge request that described electric energy receiving system sends, and control described electric energy receiving system according to described charge request and enter the described charge request stage, and when judging that described second electrokinetic cell meets described preset charged condition, controlling described electric energy receiving system and entering described wireless charging flow process being described second power battery charging by described electric energy receiving system.
2. the system as claimed in claim 1, it is characterized in that, described first battery manager is also in described wireless discharge flow path, when receive discharge off instruction or judge described first electrokinetic cell do not meet described default discharging condition or described electric energy receiving system there is fault time, control described first electrokinetic cell and stop to described electric energy generator electric energy transmitting.
3. the system as claimed in claim 1, it is characterized in that, described second battery manager is also in described wireless charging flow process, when receiving charging termination instruction or described second electrokinetic cell and not meeting that described in described preset charged conditioned disjunction, electric energy receiving system exists fault, control described second electrokinetic cell and stop charging.
4. the system as claimed in claim 1, is characterized in that, described electric energy generator comprises:
Frequency up converter, for being converted to the alternating current of predeterminated frequency by the high voltage direct current provided from described first electrokinetic cell;
First wireless communication module, for carrying out wireless telecommunications with described electric energy receiving system;
First detection module, for carrying out fault detect to described electric energy generator;
Transmitting coil, for being emitted to described electric energy receiving system by described alternating current with the form of electromagnetic field;
First control module, for controlling described frequency up converter, the first wireless communication module, first detection module and described transmitting coil.
5. the system as claimed in claim 1, is characterized in that, described electric energy receiving system comprises:
Receiving coil, for receiving the electric energy from described transmitting coil;
Second wireless communication module, for carrying out wireless telecommunications with described electric energy generator;
Second detection module, for carrying out fault detect to described electric energy receiving system;
Rectifier, for being converted to direct current by the alternating current from described receiving coil;
Dc-dc is described second power battery charging after the direct current provided from described rectifier being carried out to voltage transitions;
Second control module, for controlling described receiving coil, the second wireless communication module, the second detection module, rectifier and dc-dc.
6. the system as claimed in claim 1, it is characterized in that, described electric energy generator also comprises: the first connector, described electric energy generator carries out communication by described first connector and described first battery manager, described electric energy receiving system also comprises: the second connector, and described electric energy receiving system carries out communication by described second connector and described second battery manager.
7. the system as claimed in claim 1, it is characterized in that, also comprise: the first high-tension distribution box and the second high-tension distribution box, described first high-tension distribution box is electrically connected with described electric energy generator, described first electrokinetic cell and described first battery manager respectively, described first high-tension distribution box is controlled by described first battery manager, to control conducting and the disconnection of wireless discharge loop; Described second high-tension distribution box is electrically connected with described electric energy receiving system, described second electrokinetic cell and described second battery manager respectively by high-voltage wiring harness, described second high-tension distribution box is controlled by described second battery manager, to control conducting and the disconnection in wireless charging loop.
8. the system as claimed in claim 1, is characterized in that, when following condition is set up, described first battery manager judges that described first electrokinetic cell meets described default discharging condition:
The state-of-charge of described first electrokinetic cell is not less than the first preset value and described first electrokinetic cell does not exist fault.
9. the system as claimed in claim 1, is characterized in that, when following condition is set up, described second battery manager judges that described second electrokinetic cell meets described preset charged condition:
The state-of-charge of described second electrokinetic cell is not higher than the second preset value and described second electrokinetic cell does not exist fault.
10. the system as claimed in claim 1, it is characterized in that, after described electric energy generator enters described wireless discharge flow path, described electric energy generator also for carry out self-inspection in real time and detect whether with described electric energy receiving system generation communication failure, if testing result occurs abnormal, then feed back to described first battery manager, described first battery manager controls described first electrokinetic cell and stops electric discharge.
11. the system as claimed in claim 1, it is characterized in that, after described electric energy receiving system enters described wireless charging flow process, described electric energy receiving system also for carry out self-inspection in real time and detect whether with described electric energy generator generation communication failure, if testing result occurs abnormal, then feed back to described second battery manager, described second battery manager controls described second electrokinetic cell and stops charging.
12. systems as described in any one of claim 1-11, it is characterized in that, after described electric energy generator enters described wireless discharge flow path, described first battery manager is also for when detecting that described first electrokinetic cell breaks down and the fault of described first electrokinetic cell is the level fault of the first electrokinetic cell, control described electric energy generator carries out limitting delivery of electrical energy from power to described electric energy receiving system, if when the fault of described first electrokinetic cell is the secondary failure of the first electrokinetic cell, described first battery manager controls described first electrokinetic cell and stops electric discharge.
13. systems as described in any one of claim 1-11, it is characterized in that, after described electric energy receiving system enters described wireless charging flow process, described second battery manager is also for when detecting that described second electrokinetic cell breaks down and the fault of described second electrokinetic cell is the level fault of the second electrokinetic cell, control described electric energy receiving system and send the instruction of limit power delivery to described electric energy generator, so that described electric energy generator carries out to described electric energy receiving system the delivery of electrical energy limitting power, if the fault of described second electrokinetic cell is the secondary failure of the second electrokinetic cell, described second battery manager controls described second electrokinetic cell and stops charging.
14. systems as claimed in claim 4, it is characterized in that, described electric energy generator also for judging the charge power being suitable for charging to described second electrokinetic cell according to the information of described second electrokinetic cell, and with described charge power to described electric energy receiving system electric energy transmitting.
15. 1 kinds for the wireless charging method of electric automobile to electric automobile, it is characterized in that, described electric automobile comprises: the first electric automobile and the second electric automobile, described first electric automobile is provided with electric energy generator, the first battery manager and the first electrokinetic cell, described second electric automobile is provided with electric energy receiving system, the second battery manager and the second electrokinetic cell, said method comprising the steps of:
Control described electric energy generator and wireless telecommunications set up by described electric energy receiving system;
After setting up wireless telecommunications, control described electric energy generator and enter electric discharge request stage and control described electric energy receiving system and enter the charge request stage;
Described first battery manager judges whether described first electrokinetic cell meets default discharging condition and described second battery manager judges whether described second electrokinetic cell meets preset charged condition;
If described first electrokinetic cell meets default discharging condition and described second battery manager judges that described second electrokinetic cell meets preset charged condition, then control described first electrokinetic cell to described electric energy generator electric energy transmitting;
Described electric energy generator according to the Information Pull electromagnetic induction of described second electrokinetic cell to described electric energy receiving system wirelessly transmitting electrical energy;
Described electric energy receiving system charges to described second electrokinetic cell.
16. methods as claimed in claim 15, is characterized in that, also comprise: control described first electrokinetic cell be described electric energy generator power time, control described first electrokinetic cell when following condition is set up and stop powering to described electric energy generator:
Receive discharge off instruction;
Or, judge that described first electrokinetic cell does not meet described default discharging condition;
Or there is fault in described electric energy receiving system.
17. methods as claimed in claim 15, is characterized in that, also comprise: when described electric energy receiving system charges to described second electrokinetic cell, stop described electric energy receiving system to charge to described second electrokinetic cell when following condition is set up:
Receive charging termination instruction;
Or described second electrokinetic cell does not meet described preset charged condition;
Or there is fault in described electric energy receiving system.
18. methods as claimed in claim 15, is characterized in that, when following condition is set up, judge that described first electrokinetic cell meets described default discharging condition:
The state-of-charge of described first electrokinetic cell is not less than the first preset value and described first electrokinetic cell does not exist fault.
19. methods as claimed in claim 15, is characterized in that, when following condition is set up, judge that described second electrokinetic cell meets described preset charged condition:
The state-of-charge of described second electrokinetic cell is not higher than the second preset value and described second electrokinetic cell does not exist fault.
20. methods as described in any one of claim 15-19, is characterized in that, control described first electrokinetic cell be described electric energy generator power time, also comprise:
If described first electrokinetic cell breaks down and the fault of described first electrokinetic cell is the level fault of the first electrokinetic cell time, then control described electric energy generator and carry out limitting the delivery of electrical energy of power to described electric energy receiving system;
If when the fault of described first electrokinetic cell is the secondary failure of the first electrokinetic cell, then controls described first electrokinetic cell and stop electric discharge.
21. methods as described in any one of claim 16-20, is characterized in that, when described electric energy receiving system charges to described second electrokinetic cell, also comprise:
If described second electrokinetic cell breaks down and the fault of described second electrokinetic cell is the level fault of the second electrokinetic cell, then control described electric energy receiving system and send the instruction of limit power delivery, so that described electric energy generator carries out to described electric energy receiving system the delivery of electrical energy limitting power to described electric energy generator;
If the fault of described second electrokinetic cell is the secondary failure of the second electrokinetic cell, then controls described second electrokinetic cell and stop charging.
22. methods as claimed in claim 15, is characterized in that, also comprise:
Described electric energy generator judges the charge power being suitable for charging to described second electrokinetic cell according to the information of described second electrokinetic cell, and with described charge power to described electric energy receiving system electric energy transmitting.
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| CN109088450A (en) * | 2018-07-20 | 2018-12-25 | 安徽工业大学 | A kind of electric car and its wireless charge-discharge system, charging method |
| CN111509790A (en) * | 2019-01-30 | 2020-08-07 | 北京新能源汽车股份有限公司 | Electric automobile, charging control method and control module |
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| CN112445546A (en) * | 2019-08-31 | 2021-03-05 | 比亚迪股份有限公司 | Electric vehicle, process management method and device thereof, storage medium and electronic equipment |
| CN111245109A (en) * | 2020-01-22 | 2020-06-05 | 广东工业大学 | Two-way charging device, electric automobile and electric automobile charging system |
| CN112406569A (en) * | 2020-11-05 | 2021-02-26 | 宁波赛耐比光电科技股份有限公司 | Control device and control method of wireless charging pile |
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