CN107437850A - By the transmitter of wireless charging system and the method and its performs device of receiver pairing - Google Patents
By the transmitter of wireless charging system and the method and its performs device of receiver pairing Download PDFInfo
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- CN107437850A CN107437850A CN201710380064.2A CN201710380064A CN107437850A CN 107437850 A CN107437850 A CN 107437850A CN 201710380064 A CN201710380064 A CN 201710380064A CN 107437850 A CN107437850 A CN 107437850A
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- 238000007600 charging Methods 0.000 title claims abstract description 149
- 238000000034 method Methods 0.000 title description 19
- 230000015654 memory Effects 0.000 claims description 22
- 230000009466 transformation Effects 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 239000000843 powder Substances 0.000 description 7
- 230000005611 electricity Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
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- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
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- 230000001413 cellular effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
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Classifications
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- 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
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
-
- 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
-
- 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
- B60L53/126—Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver
-
- 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
- B60L53/30—Constructional details of charging stations
- B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
- B60L53/38—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by inductive energy transfer
-
- 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
- B60L53/65—Monitoring or controlling charging stations involving identification of vehicles or their battery types
-
- 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
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
-
- 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
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
-
- 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
- H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
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- H02J7/025—
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- H04B5/72—
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- H04B5/79—
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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
-
- 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
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
- Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
- Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing
Abstract
A kind of wireless charging system (10), such as the wireless charging system (10) to electric vehicle charging, including multiple charging stations (12A-B).As vehicle (22) is close to charging station (12A-B), it transmits the signal for the magnetic station identification signal (18) for ordering all charging stations (12A-B) respectively to have unique pulse pattern by their source coil (14A-B) transmission.Then the capture coil (38) by vehicle is received the identification signal from a specific charging station (12A) by vehicle (22), and the unique pulse pattern based on the id signal received, transmission indicate that specific charging station (12A) starts to generate charging signals and indicates that other charging stations (12B) stop transmitting another signal of their id signal.
Description
Cross-reference to related applications
The U.S. Provisional Patent Application No.62/341 submitted this application claims on May 25th, 2016,224 rights and interests, the Shen
Full content please is incorporated herein by reference.
Technical field
The present invention relates generally to wireless charging system, sends out two or more wireless chargings more specifically to one kind
The method and apparatus matched with wireless charging receiver (for example, electric vehicle) in emitter (that is, charging station).
Background technology
For the specific electric vehicle using specific charging station, wireless charging system is generally by " hard coded ".Charging station leads to
Often distinguished by the fixed ip address in special services set identifier (SSID).Generally, charging station and vehicle are electric via meeting
With the wireless data link of one or more of the standard of Electronic Engineering Association (IEEE) 802.11 (commonly referred to as Wi-Fi)
Communicate with one another.It is expected to make some electric vehicles and some charging stations in wherein charging vehicle any can be used some
It can be operated with the system of any one in charging station.This requires electric vehicle and charging station can identify " pairing " and establish special
Charging process is controlled with communication link.It is expected that more than one electric vehicle can be sought " to match " simultaneously.It is therefore desirable to be able to will
Vehicle and the wireless charging system of charging station pairing.
Theme discussed in background section should not be only because it be mentioned and only false in background section
It is set to prior art.Similarly, the problem of mentioned in the Background or with background section theme is associated is not
It should be assumed to have recognized that in the prior art.Theme in background parts only represents different methods, and itself also may be used
Be invention.
The content of the invention
According to one embodiment of present invention, there is provided a kind of wireless charging system.Wireless charging system is included with first
There is the first impulse modulation pattern to identify first for first charging station of pattern operation, in the first mode the first charging station generation
First magnetic field of charging station.First charging station is further configured to operate in a second mode, in a second mode the first charging
Generation stand with the first magnetic field difference to provide the second magnetic field of wireless charging.First charging station includes the first station receiver and first
Station control.Wireless charging system includes vehicle, and vehicle, which has, to be configured to produce catching for alternating current when by magnetic field excitation
Obtain coil.Vehicle also includes voltage detecting circuit, voltage detecting circuit be electrically coupled to capture coil and be configured to determine by
The voltage of the alternating current of capture coil generation.Vehicle further comprises the vehicle control device to be communicated with voltage detecting circuit and gone back
The vehicle transmitter to be communicated with vehicle control device.Vehicle transmitter is configured to from vehicle send message to first stop and received
Device.Vehicle control device includes the first nonvolatile memory, and the first nonvolatile memory includes first group of instruction, when first group
When instruction is performed, vehicle transmitter is broadcasted first message, vehicle control device is determined the modulation type of the voltage of alternating current
Formula, and vehicle transmitter is based on types of modulation and broadcast the second message.First station control includes the second non-volatile memories
Device, the second nonvolatile memory include second group of instruction, when second group of instruction is performed so that connect in the first station receiver
After receiving first message, the first charging station operates in the first pattern, and make it that receiving second in the first station receiver disappears
If the second message is to be based on the first impulse modulation pattern after breath, the first charging station operates in a second mode.
Wireless charging system can further comprise different from the first charging station and be configured to what is operated in a third mode
Second charging station, the second charging station, which generates, in the 3rd pattern has the second impulse modulation pattern different from the first types of modulation
The 3rd magnetic field.Second charging station is further configured to operate in a second mode, and the second charging station generates in a second mode
Second magnetic field different from the 3rd magnetic field.Second charging station includes the second station receiver and the second station control.Second stand control
Device includes the 3rd nonvolatile memory, and the 3rd nonvolatile memory includes the 3rd group of instruction, when the 3rd group of instruction is performed
When so that after the second station receiver receives first message, the second charging station operates in a third mode, and causes the
If it is to be based on the second impulse modulation pattern that a station receiver, which receives the second message after the second message, the second charging station is with the
Two modes operate.
Second group of instruction in the memory of the first station control includes additional instruction, when additional instruction is performed
When so that it is not received by after a period in the past from being received first message and before the period is in the past
In the case of second message, the first charging station stops operating in the first pattern.The 3rd in the memory of the second station control
Group instruction includes additional instruction, when additional instruction is performed so that in time in the past from being received first message
After section and in the case where being not received by the second message before the period is in the past, the second charging station stops with first
Pattern operates.
Second group of instruction in the memory of first station control can include additional instruction, when additional instruction is performed
When so that after the first station receiver receives the 3rd message, the first charging station stops operating in the first pattern, and wherein
The 3rd group of instruction in the memory of the second station control, when the 3rd group of instruction is performed so that in the second station receiver
After receiving the second message, the second charging station stops operating in a third mode.
First magnetic field and the 3rd magnetic field have the first field intensity, and the second magnetic field can have the more than the first field intensity
Two field intensities.Second magnetic field can not be pulse modulation.
After the following detailed description of the preferred embodiments of the present invention is read, further aspect of the present invention and advantage will more
Clearly show, these preferred embodiments only as non-limiting example and are given with reference to the accompanying drawings.
Brief description of the drawings
The present invention is described by example referring now to accompanying drawing, in the accompanying drawings：
Fig. 1 is the top perspective view according to the wireless charging system of one embodiment；
Fig. 2 is the side view according to Fig. 1 of one embodiment wireless charging system；
Fig. 3 is the schematic diagram according to Fig. 1 of one embodiment wireless charging system；
Fig. 4 is the flow chart of the operation of the vehicle in the wireless charging system according to Fig. 1 of one embodiment；
Fig. 5 is the flow chart of the operation of the charging station in the wireless charging system according to Fig. 1 of one embodiment；And
Fig. 6 is the diagram according to the sampling pulse pattern of Fig. 1 of one embodiment wireless charging system.
Embodiment
This paper presents a kind of method of wireless charging system and this wireless charging system of operation.Wireless charging system bag
Include wireless charging power station and the vehicle with the wireless receiver for example in electric vehicle.Wireless charging system is in charging station and connects
Electric power is transmitted between receipts device.Alternating current is converted to the charging of alternating magnetic field by the source coil in receiver and capture coil
Station converts magnetic fields to alternating current.Caused by capture coil electric current can be used for vehicle in to energy storing device (such as,
Battery) charged.Wireless launcher in vehicle is used to data-message sending the wireless receiver into charging station, and
Source coil is used to from charging station transmit station identifications data to the capture coil of vehicle.As will be described in detail below, this is
System and method allow, by a pairing in vehicle and co-located (co-located) some charging stations, to control without center
Device processed instructs the operation of some charging stations.
Fig. 1 to Fig. 3 shows the non-limiting example of wireless charging system 10.As shown in figure 1, wireless charging system 10 wraps
Include co-located multiple wireless charging power station 12A-C closer to each other for example in Public Parking.It is every in the 12A-C of wireless charging power station
One there is the source coil 14A-C being positioned on parking surface 16, source coil 14A-C to be configured to generate alternating magnetic field 18
(hereinafter referred to as magnetic field 18).Wireless charging system 10 also includes the wireless power receiver 20 being arranged in vehicle 22.Nothing
Line power receiver 20 is configured to work as makes wireless power by as shown in Figure 2 being aligned in vehicle 22 above source coil 14B
When receiver 20 is aligned with one in source coil 14A-C, wireless power receiver 20, which is formulated into, receives magnetic field 18.Wirelessly
Power receiver 20 is configured to the energy conversion in magnetic field 18 into being supplied to (in this example, the vehicle of electrical storage device 24
Battery pack 24 in 22) electric energy.
As shown in figure 3, the source coil 14 in wireless charging power station 12 is arranged to when the exchange by being supplied by power supply 26
(AC) part for the resonance circuit in magnetic field 18 is generated during voltage drive.Power supply 26 is configured to from public electric wire net (will not show
Go out) electric power (for example, 60 hertz 240 volts of AC) be converted into different voltages and frequency supplied to source coil 14.Wireless charging
Standing 12 also includes station control 28, and controller 28 is configured as controlling power supply 26 and thus controls the magnetic field provided by source coil 14
18.Wireless charging power station 12 further comprises station receiver 30, and station receiver 30 communicates with station control 28, and be configured to
Wireless power receiver 20 in vehicle 22 establishes wireless communication link 32 and data-message is sent into station control from vehicle 22
Device 28 processed.
Non-limiting example according to Fig. 2, power supply 26, station control 28 and station receiver 30 may be housed in away from source
In independent case 34A-C of coil 14A-C positioning.In this example, housing 34A-C is arranged on before parking space
On pylon or column 36A-C, and source coil 14A-C is located on the parking surface 16 of the lower section of vehicle 22 or in parking surface 16.
Other embodiment can be conceived to, and wherein source coil 14A-C connects with the power supply 26 in parking surface 16, station control 28 and station
It is co-located to receive device 30.
Referring again to Fig. 3, wireless power receiver 20 includes capture coil 38, and capture coil 38 is the one of another resonance circuit
Part, it is configured to generate alternating current when being encouraged by the magnetic field 18 generated by source coil 14.Wireless power receiver 20 is also
Including rectifier circuit 40, rectifier circuit 40 is by exchange (AC) electrical power conversion (rectification) provided by capture coil 38 into can be by
Direct current (DC) electric power that the electrical load of such as electric vehicle (EV) or hybrid electric vehicle (HEV) battery pack 24 uses.
Alternate embodiment can be conceived to, wherein will unchangeably be provided to AC power loads from the AC electric power outputs of the output of capture coil 3
Carry, such as, AC motor, the AC motor include being used to change the frequency of AC electric power and the electricity of voltage for being provided to AC loads
Road.Wireless power receiver 20 also includes vehicle control device 42, voltage detecting circuit 44 and vehicle transmitter 46；Voltage detecting electricity
Both road 44 and vehicle transmitter 46 are connected with vehicle control device 42.
Voltage detecting circuit 44 is connected to the output of the capture coil 38 of controller, and is used as vehicle control device 42
Input with determine capture coil 38 when output power.Voltage detecting circuit 44 is electrically coupled to the defeated of rectifier circuit 40
Go out.When voltage detecting circuit 44 has high pressure DC in the output of rectifier circuit 40 and sends data signal to vehicle if sensing
Controller 42.Generally in high voltage circuit, for the sake of security, being attached to high-tension circuit should be isolated.In voltage
In the case of detecting circuit 44, photo-coupler can be used.
Fig. 4 is the flow chart of the method 100 used by vehicle 22, and Fig. 5 is used by wireless charging power station 12A -12C
Be used for the flow chart of the method 200 of a pairing in vehicle 22 and wireless charging power station 12A-C.These sides are described below
The step of method.
The process starts from step 110, " starting pairing process ", its mistake for matching one in vehicle 22 and charging station
Cheng Qidong.Step 110 can be performed manually, for example, pressing the car for being connected to vehicle control device 42 by vehicle driver 48
Button on instrument board (not shown).Alternatively, for example, when Vehicle positioning system (not shown) determines vehicle 22 in wireless charging
When power station 12A-C is nearby and battery charge monitoring system (not shown) determines that battery pack 24 needs to be recharged, step 110
It can be performed automatically.
After pairing process is started, the order vehicle transmitter 46 of vehicle control device 42 performs step 112, " broadcast wakeup
Message ", it causes vehicle transmitter 46 that wakeup message is wirelessly transmitted to wireless charging power station 12A-C station receiver 30.Call out
Awake message can be the digital data message transmitted according to standard data protocols (such as, one in the standards of IEEE 802.11).
In step 210, " reception wakeup message ", wireless charging power station 12A-C station receiver 30 receives to be sent out from vehicle
Penetrate the wakeup message of machine 46, and by the messaging to station control 28.
In the step 212, " low powder pulsed modulation magnetic field of the transmission with unique pulse pattern ", connects in station control 28
Receive after the wakeup message of receiver 30 of station, the order wireless charging power station 12 of station control 28 is transmitted low powder pulsed modulated
Magnetic field 18.Each in the 12A-C of wireless charging power station is configured to respond to identical wakeup message.Work as stand control
The order power supply 26 of device 28 is sent to the alternating current of source coil 14 by being periodically interrupted according to predefined pattern, and pulse is adjusted
When alternating current processed is sent to source coil 14, low powder pulsed modulation magnetic field 18 can be generated.The magnetic field of transmission during step 212
18 power can be less than the power in the magnetic field 18 generated in step 218.This can the life during step 212 for example by power supply 26
Realized into 2 volts of peak-to-peak values square waves with generating 300 volts of peak to peak square waves during step 218.Wireless power receiver 20 can
Include the circuit for switching the ohmic load (for example, 1k Ω resistor) in parallel with source coil 14 during the step 212, with
" loading " source coil 14 and make the pulse transition from conducting state to/from off-state more stable simultaneously during step 212
It is and repeatable.The pulse type in the impulse modulation magnetic field 18 of each in the 12A-C of wireless charging power station is at least for co-located nothing
Micro USB power station 12A-C is unique.
In step 114, as shown in Fig. 2 capture coil 38 on vehicle 22 and the source of one in the 12B of wireless charging power station
Coil 14B is aligned.To will definitely by vehicle 22 operator by vehicle 22 is aligned with the reference marker on parking surface 16 come
Manually perform.Operator can also by aiding in Barebone, Barebone is automatically detected capture coil 38 relative to
The position of source coil 14 and provide guiding for vehicle driver 48 to enter capture/source coil 14 right for manipulating vehicle 22
It is accurate.This wireless charging especially can be in U.S. Patent Application Publication 2013/0037339,2014/ to the example of Barebone
Found in 0253346 and 2015/0015193.
When capture coil 38 is aligned with one in source coil 14B, in step 114, capture coil 38, which produces, to be had
With the low powder pulsed modulation alternating current of the identical unique pulse pattern of impulse modulation magnetic field 18 as caused by the source coil 14.
Then the alternating current exported from capture coil 38 is handled by rectifier circuit 40, rectifier circuit 40 exports as shown in Figure 6
The DC current (DC) switched between low voltage state and high voltage state.Then should by rectifier circuit 40
Impulse modulation DC signal outputs are to voltage detecting circuit 44.
Fig. 6 shows the example of the pulse type exported from rectifier circuit 40.As shown in fig. 6, the pulse of source coil 14
Modulation magnetic field 18 causes rectifier output to be maintained at higher voltage value and be up to predetermined amount of time, so as to lock-out pulse modulated signal.
Then rectifier voltage makes three high to Low transformations.These change for providing binary-coded identification code or identification letter
Breath.The duration of low transformation determines that transformation indicates whether binary zero or " 1 " value.In the example shown, to low voltage level
It is longer transformation represent " 0 " value, and it is shorter transformation represent " 1 " value.After three transformations, rectifier output returns to high level length
Up to synchronous required predetermined amount of time, and then repeat the transformation pattern.Pulse type shown in Fig. 6 includes 3
(bit), and therefore can be used in the wireless charging system 10 with up to 8 single charging stations.Longer or shorter pulse
Pattern can be used for the charging station for distinguishing larger or smaller quantity.
In step 116, voltage detecting circuit 44 determines the voltage of impulse modulation DC signals, and by the data transfer to car
Controller 42, the vehicle control device 42 determine pulse type.In step 118, vehicle control device 42 and then order vehicle hair
Emitter 46 is broadcasted power up message to all wireless charging power station 12A-C based on the pulse type received.Power up message, which includes, to be known
The specific wireless charging station 12B of pulse type identification code is not received from it.For example, based on the pulse type received according to Fig. 6,
Power up message is by including the identification code " 101 " for identifying specific wireless charging station 12B.Power up message receives from it comprising identification
The specific wireless charging station 12B of pulse type identification code.For example, based on the pulse type received according to Fig. 6, power up message will
Including the identification code " 101 " for identifying specific wireless charging station 12B.
In step 214, the station receiver 30 of each in the 12A-C of wireless charging power station will receive and come from vehicle emissions
The power up message of device 46, and each station receiver 30 sends power up message to its respective station control 28.In step 216
In, station control 28 determine power up message whether the pulse type (that is, identification code) based on charging station oneself.If power up message
Based on charging station (12B) identification code of oneself, then station control 28 enters step 218 and order power supply 26 starts to send Gao Gong
Rate alternating current (for example, 300 volts of peak to peak square waves) is to source coil 14 to produce high power magnetic field 18.The high power magnetic field 18 will be
The high power alternating current for the charging for being enough to support the battery pack 24 in vehicle 22 is produced in capture coil 38.The high power exchanges
Electric current is preferably non-pulse modulated.If power up message is not based on charging station (12A, 12C) identification code of oneself, then stand
Controller 28 enter step 220 and order power supply 26 stop sending low powder pulsed modulation alternating current (for example, 2 Fu Feng to
Peak square wave) arrive source coil 14.Station control 28 can order charging station it is determined that power up message is not based on charging station (12A, 12C)
Stop sending low powder pulsed modulation magnetic field 18 immediately after the identification code of oneself, or it may disappear initially receiving wake-up
Stop sending low powder pulsed modulation magnetic field 18 after timeout period elapses after breath.
Voltage detecting circuit 44 can be isolated to be not exposed to high pressure by the on-off circuit 50 controlled by vehicle control device 42
Under, vehicle control device 42 determines pulse type afterwards and orders broadcast power up message in vehicle control device 42 in step 116
Before, the off voltage of on-off circuit 50 detection circuit 44.
Vehicle control device 42 can be arranged to control the autonomous device of wireless power receiver 20, or wagon control
Device 42 can be the equipment of the shared control to other functions on vehicle 22.Vehicle control device 42 may include microprocessor or special
With integrated circuit (ASIC).Vehicle control device 42 is programmed to control the software instruction of wireless power receiver 20 to be stored in first
In non-volatile (NV) memory devices.First NV memory devices can be included in microprocessor or ASIC, or it can be with
It is single equipment.The non-limiting example of the type for the NV memories that can be used includes the read-only storage of electrically erasable
Device (EEPROM), mask ROM (ROM) and flash memories.First NV memory devices include one group of instruction, work as quilt
During execution, vehicle control device 42 is set to perform the action of step 110-118 of the above method 100.Vehicle control device 42 can be via number
According to other controllers or apparatus interconnection in bus (such as, controller LAN (CAN) bus) and vehicle 22.
Vehicle control device 42 can also include modulus (A/D) converter circuit and digital-to-analogue (D/A) converter circuit, to allow
Converter establishes the electricity with vehicle transmitter 46, voltage detecting circuit 44 and the miscellaneous equipment outside wireless power receiver 20
Communication.Vehicle control device 42 described herein may include some microprocessors to communicate with one another.
Station control 28 may include microprocessor or application specific integrated circuit (ASIC).Station control 28 is programmed to control nothing
The software instruction in micro USB power station 12 is stored in the 2nd NV memory devices.2nd NV memory devices can be included in microprocessor
Or in ASIC, or it can be single equipment.The non-limiting example of the type for the NV memories that can be used includes electricity
Erasable Programmable Read Only Memory EPROM (EEPROM), mask ROM (ROM) and flash memories.2nd NV memories are set
For comprising one group of instruction, upon being performed, station control 28 is set to perform the action of the step 210 to 220 of the above method 200.
Station control 28 may also include modulus (A/D) converter circuit and digital-to-analogue (D/A) converter circuit, to allow station to control
Device 28 processed is established and equipment (such as, stand receiver 30 and the power supply 26 and outside station control 28 in station control 28
Equipment) telecommunication.Station control 28 described herein may include some microprocessors to communicate with one another.
A kind of it thus provides method 100,200 and nothing for matching wireless charging power station 12 and wireless power receiver 20
Micro USB electric system, the wireless charging system include multiple individually wireless charging power station 12A-C, multiple individually wireless charging power stations
12A-C is matched the wireless power received and specific wireless charging station 12 using this method 100,200.This method 100,200
Feelings in the central controller that need not be connected with all wireless charging power station 12A-C interface in wireless charging system 10 are provided
The benefit for matching wireless power receiver 20 and specific wireless charging station 12 under condition.Due to can need not and central controller
Interface adds additional charging station in the case of connecting, therefore this can provide the benefit of scalability for charging system.Due to from
Wireless charging power station 12 communicates to the data of vehicle 22 and realized by the low power magnetic field 18 generated by source coil 14, therefore method
100th, 200 also allow to stand using simpler vehicle transmitter 46 in vehicle 22 and using simpler in wireless charging power station 12
Receiver 30 from vehicle 22 to wireless charging power station 12A-C data for communicating, so as to provide than in vehicle 22 and wireless charging
Transceiver is used to transmit the low system manufacturing cost of data therebetween in the 12A-C of power station.
Although set forth herein example embodiment of the invention mainly for electric vehicle wireless battery charging, can
It is envisaged in other electric power transmission application (for example, being enabled with what the public charging system with multiple charging stations was used together
The cellular phone of wireless charging) in by wireless power transmitter and wireless power receiver pairing other embodiments.
Although for its preferred embodiment, invention has been described, but the present invention is not intended to such limitation, and
It is the scope limitation provided in being limited only by the following claims.In addition, the use of the grade of term first, second do not indicate that it is any important
Order, opposite term first, second etc. be used to a key element being distinguished with another key element.In addition, term one, one
Deng use do not indicate that limitation to amount, but at least one presence of item recited in representing.
Claims (9)
1. a kind of wireless charging system (10), including：
First charging station (12A), first charging station (12A) include the first source coil (14A), first charging station
(12A) is configured to operate in the first pattern, and first coil (14A), which generates, in the first mode has the first impulse modulation
The first magnetic field (18) of pattern, first charging station (12A) is further configured to operate in a second mode, described second
The first source coil (14A) generates second magnetic field (18) different from first magnetic field (18), first charging station in pattern
(12A) includes the first station receiver (30) and the first station control (28)；And
Vehicle (22), the vehicle (22) include being configured to produce alternating current when being encouraged by the first or second magnetic field (18)
Capture coil (38), be electrically coupled to the capture coil (38) and be configured to determine the voltage of alternating current voltage inspection
Slowdown monitoring circuit (44), the vehicle control device (42) to be communicated with the voltage detecting circuit (44) and with the vehicle control device
(42) communicate and be configured to send a message to the vehicle transmitter (46) of first station receiver (30)；
Wherein described vehicle control device (42) includes the first nonvolatile memory, and first nonvolatile memory includes the
One group of instruction, when first group of instruction is performed so that vehicle transmitter (46) broadcasts first message so that wagon control
Device (42) determines the impulse modulation pattern of the voltage of the alternating current, and causes vehicle transmitter (46) to be based on the pulse
Types of modulation broadcasts the second message；And
Wherein, first station control (28) includes the second nonvolatile memory, the second nonvolatile memory bag
Containing second group of instruction, when second group of instruction is performed so that receive described first in the first station receiver (30) and disappear
After breath, first charging station (12A) operates in the first pattern, and to receive in first station receiver (30)
If the second message after second message be to be based on the first impulse modulation pattern, first charging station (12A) with
Second mode operates.
2. wireless charging system (10) according to claim 1, it is characterised in that further comprise the second charging station
(12B), second charging station (12B) is different from first charging station (12A) and is configured to operate in a third mode,
The second charging station (12B) described in the 3rd pattern generates the 3rd magnetic field (18), and the 3rd magnetic field (18) has and institute
State the second different impulse modulation pattern of the first impulse modulation pattern, second charging station (12B) be further configured to
Second mode operates, and the second charging station (12B) generation is different from the 3rd magnetic field (18) described in the second mode
Second magnetic field (18), second charging station (12B) have the second station receiver (30) and the second station control (28), wherein institute
Capture coil (38) is stated to be configured to produce alternating current when being encouraged by the 3rd magnetic field (18)；And
Wherein described second station controller (28) includes the 3rd nonvolatile memory, and the 3rd nonvolatile memory includes
3rd group of instruction, when the 3rd group of instruction is performed so that receive first message in second station receiver (30)
Afterwards, second charging station (12B) is operated with the 3rd pattern, and to receive in first station receiver (30)
If being to be based on the second impulse modulation pattern to second message after the second message, second charging station (12B) is with the
Two modes operate.
3. wireless charging system (10) according to claim 2, it is characterised in that second group of instruction includes additional
Instruction, when the additional instruction is performed so that after a period in the past from being received the first message, simultaneously
And in the case where being not received by second message before the period is in the past, first charging station (12A) stops
Operate in the first pattern.
4. wireless charging system (10) according to claim 2, it is characterised in that the 3rd group of instruction includes additional
Instruction, when the additional instruction is performed so that after a period in the past from being received the first message, simultaneously
And in the case where being not received by second message before the period is in the past, second charging station (12B) stops
Operate in the first pattern.
5. wireless charging system (10) according to claim 2, it is characterised in that first magnetic field (18) and described
Three magnetic fields (18) have the first field intensity, and second magnetic field (18) has the second field strength more than first field intensity
Degree.
6. wireless charging system (10) according to claim 2, it is characterised in that the vehicle transmitter (46) passes through nothing
Line data link communicates with first station receiver (30) and second station receiver (30).
7. wireless charging system (10) according to claim 2, it is characterised in that in the second impulse modulation pattern
Transformation binary-coded identification message is provided.
8. wireless charging system (10) according to claim 1, it is characterised in that second magnetic field (18) be not by pulse
Modulation.
9. wireless charging system (10) according to claim 1, it is characterised in that in the first impulse modulation pattern
Transformation binary-coded identification message is provided.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201662341224P | 2016-05-25 | 2016-05-25 | |
| US62/341,224 | 2016-05-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107437850A true CN107437850A (en) | 2017-12-05 |
Family
ID=60459001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710380064.2A Pending CN107437850A (en) | 2016-05-25 | 2017-05-25 | By the transmitter of wireless charging system and the method and its performs device of receiver pairing |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2018042446A (en) |
| KR (1) | KR20170133264A (en) |
| CN (1) | CN107437850A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038742A (en) * | 2018-08-16 | 2018-12-18 | 北京新能源汽车股份有限公司 | A kind of wireless charging system |
| CN114194042A (en) * | 2020-09-02 | 2022-03-18 | 沃尔沃汽车公司 | System and method for wireless charging of electric vehicles |
| CN114206662A (en) * | 2019-08-05 | 2022-03-18 | 现代自动车株式会社 | Pairing control method and device in power transmission |
| CN114643883A (en) * | 2022-05-23 | 2022-06-21 | 合肥有感科技有限责任公司 | Wireless charging method for electric automobile |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11152974B2 (en) | 2018-10-31 | 2021-10-19 | Samsung Electronics Co., Ltd. | Wireless communication apparatus and method |
| JP6992732B2 (en) * | 2018-11-15 | 2022-01-13 | トヨタ自動車株式会社 | Non-contact power transmission / reception system |
| JP7329345B2 (en) | 2019-03-27 | 2023-08-18 | 日本信号株式会社 | Contactless power supply system and power transmission device |
| KR102308659B1 (en) * | 2019-12-11 | 2021-10-06 | 한국해양과학기술원 | High-capacity power supply device for ship powered by the electric energy |
| KR102371378B1 (en) * | 2020-07-30 | 2022-03-04 | 주식회사 티머니 | Wireless payment method and device for the same |
| CN114043882A (en) * | 2021-11-16 | 2022-02-15 | 桔充充(杭州)新能源有限公司 | Wireless charging system adaptive to various two-wheeled electric vehicle batteries |
| CN115284903B (en) * | 2022-09-29 | 2022-12-02 | 合肥有感科技有限责任公司 | Working method of vehicle wireless charging and searching system |
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| US20150015419A1 (en) * | 2013-07-15 | 2015-01-15 | Qualcomm Incorporated. | Systems, methods, and apparatus related to mutual detection and identification of electric vehicle and charging station |
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| KR101957259B1 (en) * | 2011-09-07 | 2019-03-14 | 삼성전자주식회사 | Apparatus and method for controlling wireless power transmission |
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- 2017-05-08 JP JP2017092149A patent/JP2018042446A/en not_active Withdrawn
- 2017-05-22 KR KR1020170062715A patent/KR20170133264A/en not_active Application Discontinuation
- 2017-05-25 CN CN201710380064.2A patent/CN107437850A/en active Pending
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| US9024578B2 (en) * | 2012-11-15 | 2015-05-05 | Delphi Technologies, Inc. | Alignment system for wireless electrical power transfer |
| US20150015419A1 (en) * | 2013-07-15 | 2015-01-15 | Qualcomm Incorporated. | Systems, methods, and apparatus related to mutual detection and identification of electric vehicle and charging station |
| CN105431323A (en) * | 2013-08-09 | 2016-03-23 | 高通股份有限公司 | Systems, methods, and apparatus related to detecting and identifying electric vehicle and charging station |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038742A (en) * | 2018-08-16 | 2018-12-18 | 北京新能源汽车股份有限公司 | A kind of wireless charging system |
| CN114206662A (en) * | 2019-08-05 | 2022-03-18 | 现代自动车株式会社 | Pairing control method and device in power transmission |
| CN114194042A (en) * | 2020-09-02 | 2022-03-18 | 沃尔沃汽车公司 | System and method for wireless charging of electric vehicles |
| CN114194042B (en) * | 2020-09-02 | 2024-01-30 | 沃尔沃汽车公司 | System and method for wireless charging of electric vehicles |
| CN114643883A (en) * | 2022-05-23 | 2022-06-21 | 合肥有感科技有限责任公司 | Wireless charging method for electric automobile |
| CN114643883B (en) * | 2022-05-23 | 2022-09-13 | 合肥有感科技有限责任公司 | Wireless charging method for electric automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2018042446A (en) | 2018-03-15 |
| KR20170133264A (en) | 2017-12-05 |
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Application publication date: 20171205 |