CN110103743A - Wireless charging system of electric automobile and control method thereof - Google Patents
Wireless charging system of electric automobile and control method thereof Download PDFInfo
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- CN110103743A CN110103743A CN201910417904.7A CN201910417904A CN110103743A CN 110103743 A CN110103743 A CN 110103743A CN 201910417904 A CN201910417904 A CN 201910417904A CN 110103743 A CN110103743 A CN 110103743A
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- wireless charging
- vehicle
- foreign matter
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- end power
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 73
- 230000005674 electromagnetic induction Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 9
- 239000002184 metal Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 13
- 238000004891 communication Methods 0.000 description 9
- 238000001727 in vivo Methods 0.000 description 8
- 238000011897 real-time detection Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
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- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
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- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/12—Inductive energy transfer
- B60L53/124—Detection or removal of foreign bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/60—Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- 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
- Y02T90/12—Electric charging stations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a wireless charging system of an electric automobile and a control method thereof. Wherein, wireless charging system's of electric automobile ground wireless charging device includes: the ground end power coil comprises a transmitting coil and a foreign matter detection device, and the foreign matter detection device is used for detecting whether foreign matters exist on a wireless charging path of the transmitting coil; and the ground controller is connected with the ground end power coil so as to perform foreign matter early warning operation and/or report a foreign matter early warning signal when the foreign matter detection device detects that foreign matters exist on the wireless charging path. The device can detect the metal foreign matters influencing wireless electric energy transmission and the generated eddy current effect on the wireless charging path on the ground end power coil in real time, and improves the safety of a wireless charging system.
Description
Technical field
The present invention relates to automobile technical field, in particular to the wireless charging system and its controlling party of a kind of electric car
Method.
Background technique
Compared to the contact charging modes of charging pile one kind, feeder ear is not needed with electric car in wireless charging system
Direct electrical connection, and all kinds of intelligent automation controls and interaction may be implemented in wireless charging system, and each new energy is whole
Vehicle enterprise increasingly payes attention to the exploitation and application of wireless charging system.
In the prior art, the fundamental type of wireless charging technology has electromagnetic induction, magnetic resonance, field coupling, microwave resonance
Electromagnetic induction method, which is generallyd use, Deng, current electric car carries out wireless power transmission.It has the following problems: in wireless charging
Metallic foreign body in coupled field may be heated, so as to cause the generation of safety accident.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, the first purpose of this invention is to propose a kind of terrestrial wireless charging unit.The device can be examined in real time
The eddy current effect of the metallic foreign body and generation that influence wireless power transmission is surveyed on the wireless charging path on ground surface end power coil,
Improve the safety of wireless charging system.
Second object of the present invention is to propose a kind of vehicle-mounted wireless charging device.
Third object of the present invention is to propose a kind of wireless charging system of electric car.
Fourth object of the present invention is to propose a kind of control method of wireless charging system.
To achieve the goals above, the first aspect of the present invention embodiment discloses a kind of terrestrial wireless charging unit, packet
Include: ground surface end power coil, the ground surface end power coil include transmitting coil and detection device for foreign matter, the foreign bodies detection dress
It sets on the wireless charging path for detecting the transmitting coil with the presence or absence of foreign matter；Ground controller, the ground controller
It is connected with the ground surface end power coil, to detect that there are foreign matters on the wireless charging path in the detection device for foreign matter
When, it carries out foreign matter early warning operation and/or reports foreign matter pre-warning signal.
Terrestrial wireless charging unit according to an embodiment of the present invention can pass through detection device for foreign matter real-time detection ground surface end
The metallic foreign body of wireless power transmission and the eddy current effect of generation are influenced on wireless charging path on power coil, and are being detected
Foreign matter early warning operation is carried out when to foreign matter and/or reports foreign matter pre-warning signal, to improve the safety of wireless charging system.
In some instances, the detection device for foreign matter includes multiple foreign bodies detection coils, and the foreign bodies detection coil is in
Multiple rows of multiple row arrangement.
In some instances, the ground surface end power coil further include: living body detection device, for detecting the emission lines
It whether there is living body on the wireless charging path of circle, wherein the ground controller is also used in the wireless of the transmitting coil
There are when living body, carry out living body early warning operation and/or report living body pre-warning signal on charge path.
In some instances, the living body detection device includes microwave radar.
In some instances, the ground surface end power coil further includes multiple radio frequency labels, the multiple wirelessly to penetrate
The multiple rows of multiple row arrangement of frequency marking informal petition, the multiple radio frequency label is for sending radio frequency signal.
The embodiment of the second aspect of the present invention discloses a kind of vehicle-mounted wireless charging device, the onboard wireless charging dress
It installs on electric car, the vehicle-mounted wireless charging device is communicated with terrestrial wireless charging unit, and the onboard wireless fills
Electric installation includes: vehicle-mounted end power coil, and the vehicle-mounted end power coil includes receiving coil and locating and detecting device, described to connect
Take-up circle is used to receive the electric energy sent by the transmitting coil of terrestrial wireless charging unit, the detection and localization using electromagnetic induction
Device is used to detect the radiofrequency signal that multiple radio frequency labels of the terrestrial wireless charging unit are sent, according to described more
The radiofrequency signal that a radio frequency label is sent judges the relatively described terrestrial wireless charging unit of the vehicle-mounted wireless charging device
Whether standard charging position is in；Vehicle-mounted side controller, the Vehicle Controller are connected with the vehicle-mounted end power coil, with
When the relatively described terrestrial wireless charging unit of the vehicle-mounted wireless charging device is not in standard charging position, position adjustment is carried out
Operation instruction and/or report position adjustment operation instruction.
Vehicle-mounted wireless charging device according to an embodiment of the present invention can judge that onboard wireless fills by locating and detecting device
Whether electric installation is in standard charging position relative to terrestrial wireless charging unit, and when being not in standard charging position, into
Line position sets adjustment operation instruction and/or position is reported to adjust operation instruction, to realize ground surface end and vehicle-mounted end power coil
Precisely contraposition improves charge efficiency.
The embodiment of the third aspect of the present invention discloses a kind of wireless charging system of electric car, including above-mentioned first
Vehicle-mounted charging device described in terrestrial wireless charging unit and second aspect described in aspect.
The wireless charging system of electric car according to an embodiment of the present invention, can be on real-time detection ground surface end power coil
Wireless charging path on influence wireless power transmission metallic foreign body and generation eddy current effect, improve wireless charging system
Safety, and the accurate contraposition of ground surface end and vehicle-mounted end power coil may be implemented, improve charge efficiency.
The embodiment of the fourth aspect of the present invention discloses a kind of control method of the wireless charging system of electric car, packet
Include following steps: with the presence or absence of different on the wireless charging path of the detection device for foreign matter detection transmitting coil of ground surface end power coil
Object；Ground controller detects on the wireless charging path in the detection device for foreign matter there are when foreign matter, and it is pre- to carry out foreign matter
It is alert to operate and/or report foreign matter pre-warning signal.
The control method of the wireless charging system of electric car according to an embodiment of the present invention can be filled by foreign bodies detection
Set the metallic foreign body and generation that wireless power transmission is influenced on the wireless charging path on real-time detection ground surface end power coil
Eddy current effect, and carry out foreign matter early warning operation when detecting foreign matter and/or report foreign matter pre-warning signal, to improve wireless charging
The safety of electric system.
In some instances, further includes: living body detection device detect on the wireless charging path of the transmitting coil whether
There are living bodies；The ground controller, there are when living body, carries out living body early warning on the wireless charging path of the transmitting coil
Operate and/or report living body pre-warning signal.
In some instances, further includes: the locating and detecting device of vehicle-mounted end power coil detects the terrestrial wireless charging
The radiofrequency signal that multiple radio frequency labels of device are sent；Sentenced according to the radiofrequency signal that the multiple radio frequency label is sent
Whether the relatively described terrestrial wireless charging unit of the vehicle-mounted wireless charging device that breaks is in standard charging position；Vehicle-mounted end control
Device carries out position when the relatively described terrestrial wireless charging unit of the vehicle-mounted wireless charging device is not in standard charging position
It adjusts operation instruction and/or reports the position adjustment operation instruction.
The advantages of additional aspect of the invention, will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, wherein
Fig. 1 is terrestrial wireless charging unit structural block diagram according to an embodiment of the invention；
Fig. 2 is terrestrial wireless charging unit schematic diagram according to an embodiment of the invention；
Fig. 3 is foreign matter according to an embodiment of the invention, position detection antenna plate schematic diagram；
Fig. 4 is foreign bodies detection workflow according to an embodiment of the invention；
Fig. 5 is In vivo detection workflow according to an embodiment of the invention；
Fig. 6 is the structural block diagram of vehicle-mounted wireless charging device according to an embodiment of the invention；
Fig. 7 is vehicle-mounted wireless charging device schematic diagram according to an embodiment of the invention；
Fig. 8 is position detection workflow according to an embodiment of the invention；
Fig. 9 is the wireless charging system structural block diagram according to the electric car of one embodiment of the invention；
Figure 10 is the main power topological diagram of the wireless charging system of electric car according to an embodiment of the invention；
Figure 11 is the control method flow chart of the wireless charging system of electric car according to an embodiment of the invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
The wireless charging system and its controlling party of the electric car of embodiment according to the present invention are described below in conjunction with attached drawing
Method.
Fig. 1 is terrestrial wireless charging unit structural block diagram according to an embodiment of the invention.
As shown in Figure 1, the terrestrial wireless charging unit 100 of the embodiment of the present invention, comprising: ground surface end power coil 110, ground
Face end power coil 110 includes transmitting coil 111 and detection device for foreign matter 112, and detection device for foreign matter 112 is for detecting emission lines
It whether there is foreign matter on the wireless charging path of circle 111, detection device for foreign matter 112 includes multiple foreign bodies detection coils, foreign matter inspection
Test coil claps multiple row arrangement in more；Ground controller 120, ground controller 120 are connected with ground surface end power coil 110, with
Detection device for foreign matter 112 detects that there are when foreign matter, carry out foreign matter early warning operation and/or report foreign matter pre- on wireless charging path
Alert signal.
Specifically, in conjunction with Fig. 2, ground controller 120 is interior to be contained lightning protection circuit, breaker, intelligent electric meter, contactor, dissipates
The alternating current of the auxiliary devices such as Hot-air fan, indicator light, display, access is controlled by accessory power supply output low-tension supply for entire ground
The low-voltage device of device 120 processed uses.There is the master control borad of one piece of integrated wireless communications functional module in ground controller 120, is responsible for
Entire other electrical controls of ground controller 120 in addition to ground power converter unit, and be responsible for passing through CAN (full name
Controller Area Network, i.e. controller local area network) foreign bodies detection in bus and ground surface end power coil 110
Device 112 communication, by CAN bus connect with serial ports and ground power converter unit communication, pass through WIFI (wireless network) and vehicle
The positioning and communicating carried in side controller controls board communications.There are one ground power converter unit, alternating currents in ground controller 120
After input, high-frequency ac electricity output is transformed it into ground surface end power coil.Wherein, detection device for foreign matter 112 includes foreign matter
Detection plate and foreign bodies detection antenna plate.
As shown in Fig. 2, ground surface end power coil 110 further include: living body detection device 113, for detecting transmitting coil 111
It whether there is living body on the wireless charging path of (not shown), wherein ground controller 120 is also used in transmitting coil
There are when living body, carry out living body early warning operation and/or report living body pre-warning signal on 111 wireless charging path.Specifically,
Living body detection device 113 includes In vivo detection plate and In vivo detection antenna, and living body detection device 113 further includes microwave radar (figure
In be not shown).
In specific example, ground surface end power coil 110 further includes that multiple radio frequency labels 114 (do not show in figure
Out), multiple radio frequency labels are arranged in multiple rows of multiple row, and multiple radio frequency labels are for emitting radio frequency signal.
As shown in figure 3, being foreign matter, position detection antenna plate schematic diagram, the top in ground surface end power coil disk is one piece
Foreign bodies detection plate, top layer cabling are provided with the equidistant coil of spiral of certain amount arrangement same impedance, the table in antenna plate
Face is covered with the identical radio frequency label 114 of one layer of certain amount arrangement, wherein microwave radar is placed in ground surface end function
The middle position of rate coil panel.It should be noted that Fig. 3 is only the technical program arranged schematic diagram, not exact arrangement
Shape and quantity.
Foreign bodies detection workflow is as shown in figure 4, Full Vehicle System normally powers on, and after starting wireless charging function, foreign matter
Detection device 112 inputs the identical ac-excited signal of certain frequency to each independent foreign bodies detection coil respectively, and in real time
Analysis is acquired to frequency, the amplitude by treated the feedback signal such as filtering transformation, when the detection of detection device for foreign matter 112
When the parameter arrived by computational discrimination is abnormal, ground controller 120 is reported by CAN bus, ground controller 120 is in addition to doing
Corresponding early warning processing is outer out, is reported to vehicle-mounted side controller to alarm exception information by WIFI, cutoff high circuit etc.
Processing, is also reported to ground power converter unit for exception information by CAN bus, ground surface end power conversion unit can basis
The concrete condition of foreign matter makes power output size or rupturing duty output control；If the ginseng that detection device for foreign matter 112 detects
Number by computational discrimination be it is normal when, then continue foreign bodies detection.
In vivo detection workflow is located at as shown in figure 5, Full Vehicle System normally powers on, and after starting wireless charging function
The microwave radar of ground surface end power coil disk center position is started to work, the living body in real-time detection protection scope, and radar can incite somebody to action
Detection information Real-time Feedback gives In vivo detection plate, and when being enters protection scope, In vivo detection plate passes through to feedback pulse signal
Parameters such as amplitude, time delay when by computational discrimination being doubtful being, In vivo detection plate reports ground controller by CAN bus
120, exception information is reported to vehicle-mounted end control by WIFI in addition to itself making corresponding early warning processing by ground controller 120
The processing such as device processed alarms, cutoff high circuit, are also reported to ground power converter unit for exception information by CAN bus,
Ground surface end power conversion unit can make power output size or rupturing duty output control according to the concrete condition of living body；
When living body is not detected, microwave radar then continues to detect.By In vivo detection, ground surface end power can be gone out with real-time detection
Movable object present on wireless charging path on coil, and carry out living body early warning or report pre-warning signal, to improve
Security of system.
Terrestrial wireless charging unit according to an embodiment of the present invention can pass through detection device for foreign matter real-time detection ground surface end
The metallic foreign body of wireless power transmission and the eddy current effect of generation are influenced on wireless charging path on power coil, and are being detected
Foreign matter early warning operation is carried out when to foreign matter and/or reports foreign matter pre-warning signal, to improve the safety of wireless charging system.
It is the structural block diagram of vehicle-mounted wireless charging device according to an embodiment of the invention as shown in Figure 6, the present invention is real
The vehicle-mounted wireless charging device 600 for applying example is arranged on electric car, and vehicle-mounted wireless charging device 600 and terrestrial wireless charging fill
100 communications are set, vehicle-mounted wireless charging device 600 includes: vehicle-mounted end power coil 610, and vehicle-mounted end power coil 610 includes receiving
Coil 611 and locating and detecting device 612, receiving coil 611 are used to receive using electromagnetic induction by terrestrial wireless charging unit 100
The electric energy that sends of transmitting coil 111, locating and detecting device 612 is used to detect the multiple wireless of terrestrial wireless charging unit 100
The radiofrequency signal that RF tag 114 is sent, judges onboard wireless with the radiofrequency signal sent according to multiple radio frequency labels 114
Whether charging unit 600 is in standard charging position with respect to ground wireless charging device 100；Vehicle-mounted side controller 620, vehicle-mounted end
Controller 620 is connected with vehicle-mounted end power coil 610, in the opposite ground wireless charging device of vehicle-mounted wireless charging device 600
100 when being not in standard charging position, carries out position adjustment operation instruction and/or position is reported to adjust operation instruction.
Specifically, in conjunction with Fig. 7, vehicle-mounted side controller 620 contains vehicle-mounted end power conversion unit, is responsible for the friendship that will be received
Galvanic electricity, which is rectified into, to be the direct current of power battery charging, and is integrated with positioning and communicating control panel, which passes through serial ports
With in vehicle-mounted end power coil 610 locating and detecting device 612 and vehicle-mounted end power conversion unit communicate.Vehicle-mounted end power conversion
Unit is also responsible for being communicated with vehicle, can be waken up by other controllers of vehicle, can also wake up other controllers of vehicle.Vehicle
The locating and detecting device 612 carried in end power coil 610 further includes position detection reader (not shown), for sending out in real time
Scanning signal out.
Position detection workflow is as shown in figure 8, Full Vehicle System normally powers on, and after starting position detecting function, position is examined
It surveys reader and issues real time scan signal, the radio frequency label 114 being arranged in ground surface end power coil disk is according to receiving letter
Feedback number is made, reader obtains signal strength indication and determines for positioning, and reader and positioning and communicating control panel pass through RS232
(asynchronous transmission standard interface) communication, positioning and communicating control panel are calculated by algorithm via the intensity value of feedback signal, are depicted
Information is reached ground power converter unit by WIFI, by SCI (full name Serial Communication by motion profile
Interface, i.e. serial communication interface) communication reaches vehicle-mounted end power conversion unit, thus vehicle and ground controller 120,
The cell phone application etc. either connecting with vehicle can make coil contraposition display processing.
Vehicle-mounted wireless charging device according to an embodiment of the present invention can judge that onboard wireless fills by locating and detecting device
Whether electric installation is in standard charging position relative to terrestrial wireless charging unit, and when being not in standard charging position, into
Line position sets adjustment operation instruction and/or position is reported to adjust operation instruction, to realize ground surface end and vehicle-mounted end power coil essence
Quasi- contraposition, improves charge efficiency.
It is illustrated in figure 9 the structural block diagram of the wireless charging system 900 of electric car according to an embodiment of the invention,
It include: the charging dress of onboard wireless described in terrestrial wireless charging unit 100 and above-mentioned second aspect described in above-mentioned first aspect
Set 600.
Specifically, as shown in Figure 10 for according to the main function of the wireless charging system of the electric car of one embodiment of the invention
Rate topological diagram, it will be understood that the main power topology of ground controller 120 is by lightning protection filter circuit, non-bridge PFC (full name Power
Factor Correction, i.e. circuit of power factor correction), BUCK (Buck conversion circuit), full bridge inverter constitute,
Ground surface end and vehicle-mounted end power coil compensation way are all made of composite resonant topology, the main power topology of vehicle-mounted side controller 620 by
Full bridge rectifier, throw load protection circuit are constituted, and throw load circuit structure is in such a way that power switch tube adds discharge resistance
It realizes.
The wireless charging system of electric car according to an embodiment of the present invention, can be on real-time detection ground surface end power coil
Wireless charging path on influence wireless power transmission metallic foreign body and generation eddy current effect, improve wireless charging system
Safety, and the accurate contraposition of ground surface end and vehicle-mounted end power coil may be implemented, improve charge efficiency.
As shown in figure 11, the control method of the wireless charging system of electric car according to an embodiment of the invention, packet
Include following steps:
S101: whether there is on the wireless charging path of the detection device for foreign matter detection transmitting coil of ground surface end power coil
Foreign matter；
S102: ground controller detects on wireless charging path in detection device for foreign matter there are when foreign matter, carries out foreign matter
Early warning operates and/or reports foreign matter pre-warning signal.
In one embodiment of the invention, further includes: the wireless charging path of living body detection device detection transmitting coil
It is upper to whether there is living body；Ground controller, there are when living body, carries out living body early warning behaviour on the wireless charging path of transmitting coil
Make and/or report living body pre-warning signal.
In one embodiment of the invention, further includes: the locating and detecting device of vehicle-mounted end power coil detection ground without
The radiofrequency signal that multiple radio frequency labels of line charge electric installation are sent；The radiofrequency signal sent according to multiple radio frequency labels
Judge whether vehicle-mounted wireless charging device is in standard charging position with respect to ground wireless charging device；Vehicle-mounted side controller is in vehicle
When load wireless charging device is not in standard charging position with respect to ground wireless charging device, carries out position and adjust operation instruction
And/or report the position adjustment operation instruction.
The control method of the wireless charging system of electric car according to an embodiment of the present invention can be filled by foreign bodies detection
Set the metallic foreign body and generation that wireless power transmission is influenced on the wireless charging path on real-time detection ground surface end power coil
Eddy current effect, and carry out foreign matter early warning operation when detecting foreign matter and/or report foreign matter pre-warning signal, to improve wireless charging
The safety of electric system.
It should be noted that the specific implementation of the control method of the wireless charging system of the electric car of the embodiment of the present invention
Mode is similar with the specific implementation of the wireless charging system of the electric car of the embodiment of the present invention, specifically refers to method portion
The description divided, is not repeated herein.
In addition, other compositions of vehicle according to an embodiment of the present invention and effect are for those of ordinary skill in the art
For be all it is known, in order to reduce redundancy, be not repeated herein.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (10)
1. a kind of terrestrial wireless charging unit characterized by comprising
Ground surface end power coil, the ground surface end power coil include transmitting coil and detection device for foreign matter, the foreign bodies detection
Device is used to detect on the wireless charging path of the transmitting coil with the presence or absence of foreign matter；
Ground controller, the ground controller are connected with the ground surface end power coil, to examine in the detection device for foreign matter
It measures on the wireless charging path there are when foreign matter, carry out foreign matter early warning operation and/or reports foreign matter pre-warning signal.
2. terrestrial wireless charging unit according to claim 1, which is characterized in that the detection device for foreign matter includes multiple
Foreign bodies detection coil, the foreign bodies detection coil are arranged in multiple rows of multiple row.
3. terrestrial wireless charging unit according to claim 1 or 2, which is characterized in that the ground surface end power coil is also
Include:
Living body detection device whether there is living body on the wireless charging path for detecting the transmitting coil, wherein describedly
Face controller is also used on the wireless charging path of the transmitting coil there are when living body, carry out living body early warning operation and/or
Report living body pre-warning signal.
4. terrestrial wireless charging unit according to claim 3, which is characterized in that the living body detection device includes microwave
Radar.
5. terrestrial wireless charging unit according to claim 1, which is characterized in that the ground surface end power coil further includes
Multiple radio frequency labels, the multiple radio frequency label arrange that the multiple radio frequency label is used in multiple rows of multiple row
Send radio frequency signal.
6. a kind of vehicle-mounted wireless charging device, which is characterized in that the vehicle-mounted wireless charging device is arranged on electric car, institute
It states vehicle-mounted wireless charging device to communicate with terrestrial wireless charging unit, the vehicle-mounted wireless charging device includes:
Vehicle-mounted end power coil, the vehicle-mounted end power coil include receiving coil and locating and detecting device, the receiving coil
For receiving the electric energy sent by the transmitting coil of terrestrial wireless charging unit using electromagnetic induction, the locating and detecting device is used
In the radiofrequency signal that the multiple radio frequency labels for detecting the terrestrial wireless charging unit are sent, according to the multiple wireless
The radiofrequency signal that RF tag is sent judges whether the relatively described terrestrial wireless charging unit of the vehicle-mounted wireless charging device is located
In standard charging position；
Vehicle-mounted side controller, the Vehicle Controller are connected with the vehicle-mounted end power coil, to charge in the onboard wireless
When the relatively described terrestrial wireless charging unit of device is not in standard charging position, carry out position adjustment operation instruction and/or on
Report the position adjustment operation instruction.
7. a kind of wireless charging system of electric car characterized by comprising
Terrestrial wireless charging unit according to claim 1-5；With
Vehicle-mounted wireless charging device according to claim 6.
8. a kind of control method of the wireless charging system of electric car, which comprises the following steps:
It whether there is foreign matter on the wireless charging path of the detection device for foreign matter detection transmitting coil of ground surface end power coil；
Ground controller detects on the wireless charging path in the detection device for foreign matter there are when foreign matter, and it is pre- to carry out foreign matter
It is alert to operate and/or report foreign matter pre-warning signal.
9. the control method of the wireless charging system of electric car according to claim 8, which is characterized in that further include:
Living body detection device detects on the wireless charging path of the transmitting coil with the presence or absence of living body；
The ground controller, there are when living body, carries out living body early warning operation on the wireless charging path of the transmitting coil
And/or report living body pre-warning signal.
10. the control method of the wireless charging system of electric car according to claim 8, which is characterized in that further include:
The locating and detecting device of vehicle-mounted end power coil detects multiple radio frequency labels hair of the terrestrial wireless charging unit
The radiofrequency signal sent；
The vehicle-mounted wireless charging device is judged relatively describedly according to the radiofrequency signal that the multiple radio frequency label is sent
Whether face wireless charging device is in standard charging position；
Vehicle-mounted side controller is not in standard charging in the relatively described terrestrial wireless charging unit of the vehicle-mounted wireless charging device
When position, carries out position adjustment operation instruction and/or report the position adjustment operation instruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910417904.7A CN110103743A (en) | 2019-05-20 | 2019-05-20 | Wireless charging system of electric automobile and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910417904.7A CN110103743A (en) | 2019-05-20 | 2019-05-20 | Wireless charging system of electric automobile and control method thereof |
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| Publication Number | Publication Date |
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| CN110103743A true CN110103743A (en) | 2019-08-09 |
Family
ID=67491019
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910417904.7A Pending CN110103743A (en) | 2019-05-20 | 2019-05-20 | Wireless charging system of electric automobile and control method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110488257A (en) * | 2019-08-29 | 2019-11-22 | 深圳大学 | A kind of detector for moving object for wireless power transmission, system and method |
| CN113036948A (en) * | 2021-05-27 | 2021-06-25 | 荣耀终端有限公司 | Charging control method and device |
| CN113103887A (en) * | 2021-04-08 | 2021-07-13 | 中国第一汽车股份有限公司 | Charging pairing method and device, electronic equipment, system and storage medium |
| CN113346637A (en) * | 2021-06-22 | 2021-09-03 | 哈尔滨工业大学 | Method for eliminating foreign matter harm in wireless charging system |
| CN113415181A (en) * | 2021-06-28 | 2021-09-21 | 国网北京市电力公司 | Stereo garage and charging protection device adopting wireless power transmission |
| CN113602108A (en) * | 2021-08-12 | 2021-11-05 | 岚图汽车科技有限公司 | Wireless charger fault detection device, fault recovery method and awakening method |
| CN113640784A (en) * | 2020-05-11 | 2021-11-12 | 柏壹新能源科技(深圳)有限公司 | Foreign matter detection method, control device, radar detection device and system |
| CN114094723A (en) * | 2021-11-19 | 2022-02-25 | 深圳威迈斯新能源股份有限公司 | Wireless charging transmitting terminal |
| CN114801796A (en) * | 2021-06-29 | 2022-07-29 | 长城汽车股份有限公司 | Vehicle-mounted wireless charging foreign matter alarm method and device, vehicle and computer readable storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110488257A (en) * | 2019-08-29 | 2019-11-22 | 深圳大学 | A kind of detector for moving object for wireless power transmission, system and method |
| CN113640784A (en) * | 2020-05-11 | 2021-11-12 | 柏壹新能源科技(深圳)有限公司 | Foreign matter detection method, control device, radar detection device and system |
| CN113103887A (en) * | 2021-04-08 | 2021-07-13 | 中国第一汽车股份有限公司 | Charging pairing method and device, electronic equipment, system and storage medium |
| CN113036948A (en) * | 2021-05-27 | 2021-06-25 | 荣耀终端有限公司 | Charging control method and device |
| CN113346637A (en) * | 2021-06-22 | 2021-09-03 | 哈尔滨工业大学 | Method for eliminating foreign matter harm in wireless charging system |
| CN113346637B (en) * | 2021-06-22 | 2022-08-23 | 哈尔滨工业大学 | Method for eliminating foreign matter harm in wireless charging system |
| CN113415181A (en) * | 2021-06-28 | 2021-09-21 | 国网北京市电力公司 | Stereo garage and charging protection device adopting wireless power transmission |
| CN114801796A (en) * | 2021-06-29 | 2022-07-29 | 长城汽车股份有限公司 | Vehicle-mounted wireless charging foreign matter alarm method and device, vehicle and computer readable storage medium |
| CN113602108A (en) * | 2021-08-12 | 2021-11-05 | 岚图汽车科技有限公司 | Wireless charger fault detection device, fault recovery method and awakening method |
| CN113602108B (en) * | 2021-08-12 | 2024-01-16 | 岚图汽车科技有限公司 | Wireless charger fault detection device, fault recovery and awakening method |
| CN114094723A (en) * | 2021-11-19 | 2022-02-25 | 深圳威迈斯新能源股份有限公司 | Wireless charging transmitting terminal |
| CN114094723B (en) * | 2021-11-19 | 2024-10-25 | 深圳威迈斯新能源(集团)股份有限公司 | Wireless charging transmitting terminal |
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Application publication date: 20190809 |