CN106374553A - System and method for reducing interference between wireless charging and amplitude modulation reception - Google Patents
System and method for reducing interference between wireless charging and amplitude modulation reception Download PDFInfo
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- CN106374553A CN106374553A CN201610565267.4A CN201610565267A CN106374553A CN 106374553 A CN106374553 A CN 106374553A CN 201610565267 A CN201610565267 A CN 201610565267A CN 106374553 A CN106374553 A CN 106374553A
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- charger
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- rechargeable device
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- 238000007600 charging Methods 0.000 title claims abstract description 189
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- 230000033228 biological regulation Effects 0.000 claims description 6
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Classifications
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- H02J7/025—
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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
- H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
-
- 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
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
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- H04B5/79—
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
-
- 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
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/46—The network being an on-board power network, i.e. within a vehicle for ICE-powered road vehicles
Abstract
A method for reducing interference in an inductive charging system is provided. The method includes steps of inductively charging a chargeable device with an inductive charger, detecting the operation of a receiver in an AM band, and adjusting at least one of a frequency band employed by the charger and/or an amount of power provided to the chargeable device by the charger based on the operation of the receiver in the AM band.
Description
Technical field
Present invention relates in general to wireless charging system, and more particularly, to reduce in vehicle mancarried device in wireless charging
Interference during electricity.
Background technology
The electronic installation (such as mobile phone) of portable, battery powered, using necessary recharged when battery electric quantity is consumed
Rechargeable battery.Typically, electronic or electronic installation is physically connected to charger by wire connection.Recently, wireless charging
Electric installation (such as induction electricity charger) can be used for the feelings not having any physical conductors to connect between electronic installation and charging device
Charge for battery under condition.Electric energy is passed to from charging device by the electromagnetic field that wireless charger produces by using electromagnetic transducer
Receptor on device on battery or that there is the battery charging.The magnetic field that induction electricity charger produces is by using sensing
Electric energy is passed to the receptor on device that is battery or having the battery charging by coil from charging device.Have
People proposes to be used for vehicle, have each of portable battery or battery powdered device in vehicle drive chamber interior induction electricity charger
Plant position, these positions are generally proximal to driver and other passengers, to facilitate this device of easily taking.However, electromagnetic field may
Other systems in vehicle or motor vehicles are produced frequency interferences by potentially emitted energy.Magnetic resonance charger is also possible to draw
Play interference, but interference may be intended to lesser extent.Accordingly, it would be desirable to provide motor vehicles by following such a mode
The wireless charger of inside, i.e. make the frequency interferences of other systems that this wireless charger uses to motor vehicle interiors subtract
To minimum.
Content of the invention
According to an aspect of the invention, it is provided a kind of method for reducing interference in induction charging system.The party
Method comprises the following steps: with the fortune to receptor in rechargeable device induction charging, detection amplitude modulation (am) wave band for the induction electricity charger
Row and at least one of the following is adjusted based on the operation of receptor in am wave band: frequency band that charger is adopted and
It is supplied to the electricity of rechargeable device by charger.
According to another aspect of the present invention, there is provided a kind of for reducing the interference during rechargeable device induction charging
Charging system.This charging system includes charger and the controller of inductive power supply, and this controller is configured to detect that charger is attached
The selection of the am tuning mode of nearly receptor.If receptor is tuned to the frequency in the predetermined portions of am wave band, charge
The frequency band that system fading margin charger is adopted.
According to a further aspect of the invention, there is provided a kind of for reducing the interference during rechargeable device induction charging
Onboard system.Charged area that this onboard system includes being arranged in vehicle, the charger of inductive power supply and fill with sensing
The controller of electrical communication.The operation of vehicle receiver in the scan pattern of am frequency band near this controller detection charger,
And adjust the frequency band that charger is adopted.
In one embodiment of the invention, controller by the electricity being supplied to rechargeable device by charger adjust to
Maintain and rechargeable device is charged with required about minimum power.
In one embodiment of the invention, a frequency selected in the predetermined portions of am wave band by controller detection receptor
It is continued above predetermined time amount.
In one embodiment of the invention, controller is configured to detect whether the frequency selected is charger to chargeable
Device is charged the integral multiple of residing frequency band.
In one embodiment of the invention, if the frequency that controller is configured to select is not induction electricity charger to can fill
Electric installation is charged the integral multiple of residing frequency band, then adjust the frequency band that charger adopted and provided by charger
Electricity to rechargeable device.
In one embodiment of the invention, charger in the charge frequency of the harmonic wave with am frequency band to rechargeable device
Carry out induction charging.
Those skilled in the art read description below, will be better appreciated by after claims and drawing the present invention this
A little and other side, purpose and feature.
Brief description
In accompanying drawing:
Fig. 1 is the perspective view of the vehicle cab using wireless charger according to an embodiment in potential charging zone;
Fig. 2 is the amplification plan view of a part for vehicle cab, is shown at filling on the console of vehicle further
Electric area, portable rechargeable device is close to charger;
Fig. 3 is the block diagram of the induction charging system according to an embodiment;
Fig. 4 is the perspective view of the induction charging system according to an embodiment;
Fig. 5 is the system block diagram of the wireless charging system according to an embodiment, and this wireless charging system is configured to
Reduce the interference between the induction charging system in vehicle and other system;
Fig. 6 is the form according to an embodiment, and its explanation wireless charging system is based on induction charging agreement and runs mould
The operation that formula is realized;
Fig. 7 a and 7b is the flow chart according to an embodiment, and it illustrates for reducing the interference in induction charging system 1
Frequency/power adjustment procedures;And
Fig. 8 be illustrate wireless charging system based on radio in the am wave band near wireless charging system using realizing
The flow chart running.
Specific embodiment
As requested, the specific embodiment of the present invention is disclosed;It is to be understood, however, that disclosed embodiment is only
As the demonstration of the present invention, the present invention can also be realized with multiple and alternative form.Accompanying drawing needs not to be refinement;One
A little accompanying drawings are probably to show feature summary in the form of zooming in or out.Therefore, concrete structure disclosed herein and function are thin
Section is not construed as limiting the present invention, but is only used as exemplary base and is used for teaching those skilled in the art using this
Bright.
See figures.1.and.2, generally show the inside of motor vehicles 10 according to an embodiment of the invention, should
There is the passenger compartment 12 using radio induction charging system 30 inside.Motor vehicles 10 generally comprise seat arrangements, this seat cloth
Put including front-seat pilot set 14 and front passenger seat 16, in the passenger compartment 12 of motor vehicles 10, each seat is suitable for
Sit a people as occupant.Motor vehicles 10 also include the console with storage tank 22 being arranged between front-row seats 14 and 16
18 and side-door arm-rest 21.Console 18, instrument board 20 and handrail 21 and other vehicle assembly, may be equipped with various dresses
The storage tank put support (such as bracket) and the one or more devices for wireless charging can be received.Motor vehicles 10 can
To further include back seat and wireless charging bracket and to be configured to the radio induction charging positioned at back seat region
Storage tank.
Fig. 2 shows the enlarged drawing of the part within motor vehicles 10 comprising induction charging system 30.Illustrate
In embodiment, charging zone 24 may be located on the console 18 of motor vehicles 10, and portable rechargeable device 25 can position
On the surface of charging system 30.Motor vehicles 10 can equip one or more wireless charging systems 30, with to one or many
Individual device carries out wireless charging, including one or more rechargeable batteries of electronic installation in-line power.In one embodiment,
One or more wireless chargings can be provided in being arranged on one or more of console 18 storing bracket or bracket
System 30.Wireless charging system 30 includes radio induction charging device 26.Induction electricity charger typically comprises one or more sensings
Coil, for typically producing the signal of telecommunication of electromagnetic field (emf) form in charging zone 24 with low frequency.In the embodiment illustrating
In, charging zone 24 can be limited by having for the diapire of reception device and the bracket of side wall or rack, so, work as device
When inside charging zone 24, can be charged by electromagnetic field inductive.According to another embodiment, wireless charging system
System 30 can use the charging zone 24 providing on one or more plates or bracket of motor vehicle instrument plate 20.According to further
Embodiment, wireless charging system 30 can be using being provided with the charging zone 24 of induction electricity charger 26, and charger 26 is located at from car
In the bracket within handrail 21 that door stretches out.In each these embodiment, wireless charging system 30 be suitable to receive one or
Multiple devices, the such as charging zone 24 of rechargeable battery or the electronic or electronic installation 25 using rechargeable battery, this dress
Put and can be charged by the signal of telecommunication on charging zone, and inside the driver's cabin 12 of motor vehicles 10, driver or other take advantage of
Visitor can easily take this device.The example of the electronic installation 25 being charged by charging system 30 include mobile phone,
Computer, radio, illuminator and music and video player.
With reference to Fig. 3, further illustrate wireless charging system 30, it has and is shown as controller 40 in one embodiment
Control circuit, this control circuit includes microprocessor 42 and memorizer 44.Controller 40 can include other or additional simulation
And/or digital circuit.Being stored within memorizer 44 can be frequency/power adjustment procedures 100 and adjustable frequency model
Enclose and power charge parameter 150.Controller 40 can receive following conduct input: 1) indicates current charger states 30 (for example
Open or close) signal;With 2) interference that is related to the Vehicular system close to wireless charging system 30 that at least one detects runs
The information (by network-bus 50) of pattern.Vehicle operating modes information can include frequency band (the such as radio of Vehicular system
AM/FM (am/fm) scanning or tune), the status information of Vehicular system, such as invalidating or in carrying out/wait to open
Dynamic, and Vehicular system is with respect to the positional information of controller 40.The detection of such operational mode can indicate with this side
The device that formula is run will form or accept a frequency, and this frequency may lead to the potential interference with Vehicular system.Interference can be
Radiation-emitting and/or the form of conducted emission.Interference can also be produced by magnetic resonance charger, and reason is some manufactures
Business has and runs and be likely to be of the fundamental wave that can cause interference or harmonic wave in kilohertz range (for example, by am frequency band
Fundamental wave or harmonic wave) solution.Interference between this car-mounted device and charger 30 may lead to car-mounted device or charging
The fault of the invalid operation of device 30, and the device over-exposure because charging may make under the characteristic frequency of charger 30
It is overheated.After operational mode potential interference is detected, controller 40 can be for protection frequency/power adjustment procedures
100 this input information of process, and be that the induction electricity charger 26 with induction coil 27 produces output, at least to reduce or to stop
Charger 26 charging signals to be produced, and/or adjust the frequency within charging zone it is therefore an objective to avoid diving with other vehicle modules
Frequency interferences.
Fig. 4 shows the possible embodiment of the radio induction charging system 30 according to some embodiments of the present invention.?
In Fig. 4, transmitter portion 110 can be encapsulated in charging system 30.Transmitter portion 110 can comprise one or more
Ray circle (not shown), it can be coupled with the adapter of insertion standard external power supply.Receptor 130 can be encapsulated in chargeable electricity
In sub-device 25.Transmitter portion 110 can provide power for receptor 130 so that receptor 130 provides to rechargeable battery
Power, and, emitter 110 can receive the additional control information from receptor 130, and special to be adapted to based on control information
Fixed power transmission.
Vehicle charging system 30 can include one or more wireless chargers, and it is used for producing, in charging zone 24, the letter that charges
Number, the electronic installation 25 for comprising rechargeable battery charges.Wireless charger can include producing the induction charging of electromagnetic field
Device 26.Induction electricity charger can include one or more induction coils 27, and induction coil 27 is located at the subjacent of charging zone 24
Or top, for example, it is used for producing the plate of electromagnetic field in charging zone 24.Electromagnetic field passes through from induction coil 27, enters charging zone
24, and tend to and one or more of portable electron device 25 sensing receiving coil 120 wireless coupling, so that Xiang Qichuan
Pass electric energy thus charging for one or more rechargeable batteries.As a result, electromagnetic field occurs in inside charging zone 24.
Fig. 5 shows the schematically illustrate of an embodiment of the adjustable wireless communication system of description, and this system includes wireless charging
Network connection between electric system 30 and vehicle entrance and activation system, it includes integrated multiple appendix in motor vehicles
Part.Charging system 30 can by vehicle network bus 50 and multiple network connections, for example, can private visit network, such as
Wan/lan, publicly accessible network, such as the Internet, In-vehicle networking, for example, controller local area network (can) and ALDL Assembly Line Data Link
(aldl).When charging system 30 is connected with vehicle-mounted data bus 50, the controller 40 in wireless system 30 can accept to be derived from
In the coming operational mode information of the other car-mounted devices connecting vehicle-mounted data network, for example, band information, state letter
Breath, such as invalidating and in carrying out/initialized instruction, and device is with respect to the positional information of system 30.Additionally, when with
During vehicle-mounted data network connection, controller 40 can monitor and come from other vehicle electronics and system with network connection
Coming operational mode information, and the operating frequency of system 30.The operational mode being detected according to controller 40, controls
The instruction of the performance number that device 40 can send the change charge frequency of charger 26 and/or charger 26 is used, is passed through with this
Adjust the charging signals that charger 26 produces, be that one or more rechargeable batteries of mancarried device 25 charge.
As shown in figure 5, in one embodiment, vehicle-mounted data bus 50 allows wireless charging system 30 and is integrated in vehicle
Various parts in 10 such as cellular transceiver 52, vehicle enter and start controller 54, am/fm receptor 56 and exempt from
Carry and being communicated between honeycomb 911 pilot controller 58.The type of the induction charging agreement according to device 25 response is permissible
Indicate that the controller 40 within wireless charging system 30 charges for wireless device 25 in special frequency band.Charging system 30 can be equipped
Some examples of some induction charging agreements are: the qi wireless charging alliance that can run in low-frequency band 90khz-205khz
(wpc) the powermat second filial generation that, equally can run in low-frequency band 90khz-205khz, and can be in low-frequency band 270khz-
The powermat first generation that 370khz runs.Similarly, qi magnetic resonance solution is being solved with qi magnetic induction (sensing) charging
Run in the approximately uniform frequency band of scheme.Can also be using other induction charging agreements and other operating frequency.In a concrete reality
Apply in example, charger 26 can run under the charge frequency of about 110khz.
It is equipped in inside the cellular devices in motor vehicles 10 and can comprise cellular transceiver 52.Receptor 52 can also root
The class of the mobile communication standard (as global mobile communication (gsm) or CDMA (cdma)) running according to this according to cellular devices
Type, by running it is allowed to user answers any remote phone and from integrated motor vehicles under 850mhz to 1900mhz frequency
10 get phone.Cellular transceiver 52 can be by vehicle bus 50 broadcast to charging system 30, and this message indicates car
Cellular devices are receiving the working band with transmission data and easily potentially being come from induction charging system 30
Interfering frequency impact.Selectively, the operating frequency of cellular transceiver 52 can be entered by vehicle and start controller
54 mensure, and vehicle enters and startup controller 54 can be by vehicle bus 50 broadcast to charging system 30, and this disappears
Breath instruction cellular devices are under the frequency that the operating frequency easily potentially being come from induction charging system 30 is disturbed
Run.
Am/fm receptor 56 can be comprised inside the radio set for vehicle (not shown) being equipped in motor vehicles 10.This am/
Fm receptor is not only supported to operate in the North America fm wave band of the frequency of 88mhz to 108mhz and is operated in 520khz to 1610khz
Frequency North America am wave band, and support global audio band, such as long wave and U.S.National Oceanic and Atmospheric Administration
(noaa) weather wave band.Am/fm receptor 56 can be by vehicle bus 50 broadcast to charging system 30, and this message indicates
The frequency band in the radio station that radio set for vehicle is transferred to will potentially run into the interference coming from charging system 30 operating frequency.May be selected
Ground, the operating frequency of am/fm receptor 56 can be entered by vehicle and start controller 54 and measure.If vehicle enters and opens
Movement controller 54 determine operating frequency reach certain threshold value, then will by vehicle bus 50 broadcast to charging system 30,
This message indicates receptor 56 in the frequency that may potentially run into the operating frequency interference coming from induction charging system 30
Run under rate.
911 auxiliary controls being included within 911 hands-free cellular aid system (not shown) can be equipped in motor vehicles 10
Device 58 processed.If accident in vehicle (for example, vehicle airbag launches or have activated urgent fuel pump closer) is detected,
911 hands-free cellular aid systems can synchronous with the cellular devices of driver it is allowed to electric using hands-free cellular when vehicle travels
Words function, and also so that driver is directly contacted with local 911 operators.This part can send voice instruction vehicle and be in
Message in accident is to operator.If had an accident when driver is currently in use speaker phone function, 911 aid systems will
Automatically this call calling 911 are terminated.If the occupant of motor vehicles can not be conversed with 911 operators, pass through aid system
The message sending informs that 911 operator's accidents have occurred and that, and will by the positional information being provided by mobile-phone carrier
It is sent to operator.If 911 assisted calls are carrying out or will start, 911 pilot controllers 58 can pass through vehicle
To charging system 30, this message instruction mobile device 25 charges and will suspend bus 50 broadcast, to reduce induction electricity charger
30 with will disturb the probability of 911 assisted calls.The example of 911 hands-free cellular aid systems is Ford Motor Company
911 accessories, it can be equipped on the vehicle of Ford.
Once controller 40 receives from vehicle modules by network-bus 50, for example cellular transceiver 52, vehicle enter
Enter and start the status message of controller 54, am/fm receptor 56 and 911 pilot controllers 58, controller 40 just will be directed to
The program 100 being executed by control circuit being stored in memorizer 44 processes input information, control circuit and then charge adjusting
The charging signals frequency of device 26 generation and/or amplitude are to avoid the potential interference with other vehicle modules.
The form of Fig. 6 shows an embodiment of action, according to the vehicle that agreement and charging system 30 are detected
The type of the induction charging protocol apparatus 25 that the operational mode of module responds, the frequency/power of wireless charging system 30 is adjusted
Section program 100 can affect these actions.General flow chart shown in Fig. 7 illustrates each step of regulation program 100, these steps
Can be executed by controller 40 based on the mapping shown in Fig. 6.
With reference to Fig. 7, program 100 starts from step 202, and can determine wireless charger whether open and continue into
Row is to step 204.In step 204, controller 40 determine whether charging system 30 Surface testing to potential object,
And whether this object detecting can carry out induction charging by system 30.If in step 204, controller 40 determines
These conditions have met, then controller 40 advances to step 206.Otherwise, controller 40 returns to step 204, to determine is
No charging system 30 Surface testing to new target object, and whether this object detecting can be sensed
Charge.
In step 206, controller 40 determines whether the size of this object and/or quality have reached certain threshold value.?
In this step, controller 40 determines this size of object detecting and/or quality whether in threshold value standard, in this threshold value mark
It can be expected that this object may be intended to the device being charged by charging system 30 in accurate.If this object does not fall
In threshold value standard, then controller 40 advances to step 208, will ignore this object in this step and not notify user, and
It is back to step 204, determining whether to have detected that new target object on the surface of charging system 30, and this detects
Whether object can carry out induction charging.If this object meets the threshold value standard of step 206, controller 40 will advance to step
Rapid 210.By not producing any energy before the potential receptor of rechargeable device is detected, this system reduces potential broadcast
The incidence rate of radio noise, and mitigate the risk from the interference of non-chargeable device stayed on charging system 30.
In step 210, controller 40 determines whether 911 synchronous assisted calls are carried out.If the 911 of synchronization are auxiliary
Help and not yet carry out, then controller 40 advances to step 216.If assisted call is carried out, then controller 40 proceeds
To step 214, to determine a) whether mancarried device (as cellular devices 25) remainder power drops below predetermined x%, or
B) power level of cellular devices 25 can not whether be read.If these conditions are all unsatisfactory for, controller 40 advances to step
212, in this step, unless the state-of-charge (soc) of mobile phone drops below x%, otherwise charging pause, and return afterwards
To step 210, to make cellular devices 25 keep charged state and activate, so that 911 assisted calls is carried out simultaneously.As Fig. 6
Vehicle operating modes 10 mentioned by, suspend charge with system 30 wireless charging agreement using unrelated.Step 210,212 and
214 contribute to reducing the probability of frequency interferences between the operating frequency of 911 assisted calls and charging system 30 in charging process.This
Outward, step 212 and 214 tackles the situation of charging pause of stress not living, although when 911 auxiliary are carrying out or will start,
Potentially there are the frequency interferences coming from charging device 25 on one's own initiative.This kind of situation drops below predetermined x%, example in soc
As occurred when 40%, it is hasty at this moment suspending charging under less than predetermined x% level condition.Predetermined less than such
Suspending under x% level charges can not be sufficiently complete 911 auxiliary operations to the power of cellular devices 25 abundance, or if initial
911 assisted call failures then allow to carry out additional call using 911 assisted calls.Within step 306, if controller 40 determines
It is obtained in that wireless technology standard reading and power is not less than x%, then controller 40 advances to step 216.
In the step 216, controller 40 exports and carries out the visible of " dialogue assessment of charging " and is indicated to user.This is visible
Instruction can be arranged on charging zone 24 and/or other of charging system 30 or motor vehicles is local.Before controller 40 next step
Proceed to step 218, to start to determine induction charging agreement that device 25 may respond and that charging system 30 may be equipped with
Type.Each induction charging agreement operates to and produces charge power in predetermined frequency band.For example, qi wireless charging alliance (wpc) and
The powermat second filial generation can be run in low-frequency band 90khz-205khz, and powermat the and powermat first generation can be in low-frequency band
270khz-370khz runs.
Next in a step 220, controller 40 determines whether rechargeable device 25 responds to the first agreement ping.
In this step, the transmitter circuit 110 of charging system 30 will attempt to communicate with the receptor 130 of rechargeable device 25, should
Process is passed through the digital ping (short periodic test pulses) of transmission and is completed to receptor 130.After the digital ping of transmission, if received
Device 130 sends suitable feedback signal and returns to emitter 110, and this instruction receptor is effective, then first protocol-compliant system
System and controller 40 will continue to step 222.If this device no responds to first agreement ping, controller 40 continues
Continue and carry out to step 252, to determine whether this device responds to second protocol ping.For example, in a step 220, control
Device 40 can attempt to communicate with device 25 by qi standard compatibility ping.If rechargeable device 25 is to the compatibility pulse of qi standard no
Response, then controller 40 can attempt to communicate with device 25 by powermat compatibility ping.If rechargeable device is to
One agreement ping or second protocol ping all no respond, then controller 40 can indicate to the user that in step 254 and " be not detected by
Compatible apparatus ", and return to step 204, to have detected whether another potential object on charging system 30 or near it.?
In other embodiments, whether may there is additional step test rechargeable device 25 after step 252 to additional agreement
Ping responds.
In other embodiments, charging system 30 can visually indicate to the user that system is first or second protocol is simultaneous
Hold.For example, after meeting step 220 or 250, charging system 30 can export on charging zone 24 and/or charging system 30 can
Charging device is " qi is compatible " or the visible of " powermat is compatible " is indicated to user.Such visible instruction can take mark
Or the form of trade mark, this mark or trade mark represent the induction charging agreement of rechargeable device 25 compatibility having been found that.
If rechargeable device 25 responds to the first agreement ping or second protocol ping, then controller 40 continues
Carry out to step 222, to detect whether install multiple other electronic installations in motor vehicles 10, enter including vehicle and start system
System and/or radio set for vehicle am/fm wave band.Next, in step 224, if detect vehicle enter and activation system or
Radio set for vehicle am/fm wave band is not installed or invalid, then controller 40 configures Charging according to the operational mode being labeled as 0 or 1
System 30.Otherwise, controller 40 continues to step 228.Such detection in step 222, enters in vehicle and starts system
System and radio set for vehicle do not install or disarmed state under it may be possible to come from the transmission of the separate modular of motor vehicles to filling
The message of the controller 40 of electric system 30.If in another embodiment it can be provided that controller 40 does not connect in the given time
Receive any message run under different operational modes from vehicle modules, then controller 40 will be according to operational mode 0
Or 1 communicated with charging system 30, thus charging for mancarried device 25.
The example details of operational mode 0 or 1 are illustrating referring to Fig. 6.If as shown in fig. 6, passing through gross vehicle
Line 25 sends does not have the vehicle of factory equipment to enter and activation system (pattern to the motor vehicles operational mode instruction of controller 40
1) or this motor vehicles be close, am/fm wave band be close, or un-activation vehicle enter and activation system (pattern 2), that
Controller 40 by the protocol type being operated according to system 30 come order induction electricity charger 26 full low frequency (lf) wave band be portable
Formula device 25 charges.For example, if system 30 is run with qi wireless charging alliance (wpc) agreement, in operational mode 0 or 1 phase
Between, order charging system 30 is charged for mancarried device 25 in low-frequency band 90khz-205khz.Inspection in operational mode 0 or 1
It is not necessary to adjustment work frequency during survey, because if when not installing or be invalid in vehicle modules, vehicle will not be reduced
The problem of the band interference between module and charging system 30.
Configured after induction charging system 30 according to operational mode 0 or 1, controller 40 continues to step 226, entirely low
Frequency band charges for mancarried device 25, and provide a user with rechargeable device 25 complete the visible logical of charge percentage
Know.This visible instruction can be arranged in charged area 24 and/or charging system 30 or motor vehicle interiors are other local.Controller
Next 40 advance to step 228, to determine whether 911 assisted calls have been started up.If 911 hands-free cellular accessories are
Start, then controller 40 loops back step 212, in this step, unless the state-of-charge (soc) of mobile phone drops below
X%, otherwise charges and will suspend.Controller 40 continues to step 210 afterwards, so that ongoing in 911 assisted calls
Meanwhile, keep charging pause activation.Reduce charging device 25 and carrying out or will open although suspending and charging as described above
The probability of the frequency interferences between 911 dynamic auxiliary, but when device 25 may not have sufficient power to be sufficiently complete 911 auxiliary fortune
During row, should not activating charge suspend.
In step 228, if controller 40 determines that 911 assisted calls also do not start, controller 40 advances to step
Rapid 230, whether it is more than or equal to predetermined p khz with the wireless tuner frequencies of am determining activation.For example, p can be
Threshold frequency 825khz.With reference to Fig. 6, if activation am radio, it can send notice special frequency band in particular frequency range
To controller 40, this particular frequency range is more than or equal to or less than predetermined p khz the message of interior activation.Selectively, am
The operating frequency of receptor 56 can be entered by vehicle and start controller 54 and measure, and vehicle enters and starts controller
54 can be by vehicle bus 50 broadcast to charging system 30, and this message instruction am radio just runs in a frequency, should
The operating frequency of frequency interferences induction electricity charger 30.If controller 40 detects am wave band and is active, controller
40 continue to step 232, and according to determination in the vehicle operating modes being labeled as 2 and 3 and step 220 and 252
Sense protocol type to adjust the operating frequency of charging system 30.As shown in one of Fig. 6 embodiment, for example, if am no
The tuner frequencies that line electricity is being less than p khz are run, then this information will report to controller 40, and if it is determined that device 25
Second protocol is responded, then controller 40 will provide instruction so that working as the charge coil 27 to charger 26 for the transmission power
When, operating frequency is reduced with factor four (the 2nd row, the 3rd row).Controller 40 returns to step 228 afterwards, to determine whether to have opened
Dynamic 911 assisted calls, as long as and detecting the activation of am wave band and continue to circulation between step 228,230 and 232.Additionally,
If this message of broadcast that charging system 30 receives from bus 50 indicates that this radio is non-am pattern, for example,
Mp3 pattern or fm pattern, then charging system 30 will charge in full low-frequency band in the case of unrestricted, and control
Device 40 processed will continue to step 234.
As described above, if am wave band does not activate in particular tuner frequency, controller 40 continues to step
234, to determine that vehicle enters and whether activation system inquiry has been started up.Vehicle enters and activation system can be defeated according to user
Enter to provide motor vehicles 10 internal multiple automation functions, including but not limited to it is allowed to driver passes through to touch door handle
Unblock vehicle and/or startup vehicle.This vehicle enters and activation system can include signal receiver and antenna, uses for processing
Family input and permission user enter.Vehicle enters and activation system can pass through separate modular, for example, be located at motor vehicles 10
Internal vehicle enters and starts controller 54, is controlled.It is distant that vehicle entrance and startup controller 54 and driver are held
Interaction between control key may be occurred in the frequency band that may be conflicted with the operating frequency of charging system 30.For example, vehicle enters
Enter and activation system can be communicated in frequency 125khz (amplitude excursion keying data pulse) with remote-control key, and this remote control key
Spoon can enter with vehicle and activation system communicates in frequency 315khz or 901khz.If this remote-control key gets too close to system
30, then remote-control key can sense vehicle 125khz signal, this be due in charging process system 30 transmitting 125khz energy
Amount.Additionally, vehicle enters and activation system may will not start to communicate with remote-control key, unless sensed spy by system
Fixed startup, entrance or status checkout condition, for example, open door handle switch, promote start button, release brake or
Open car door.
In step 234, when vehicle enters and activation system has been started up, vehicle enters and startup controller 54 is permissible
By bus 50 broadcast to controller 40, this message instruction vehicle enters and activation system starts, and controller 40 will
Continue to step 236.As shown in fig. 6, in step 236, if controller 40 receives instruction vehicle and enters and start
Controller 54 attempts the message communicating with the remote-control key that user holds for the first time, then controller 40 can keep low-frequency band
Setting, but reduce the electricity for charging for mancarried device 25 in the given time.Such power reduces
System 30 occurs when just operating in the first sensing agreement or the second sensing agreement, but can allow when operating in the 3rd sensing agreement
System charges, as shown in Figure 6 in the case of unrestricted device 25.In step 236, if controller 40 receives finger
Show that vehicle enters and start the message that controller just attempts to communicate for the second time with the remote-control key that user holds, then controller 40 can
To keep low-frequency band setting, but device suspends charging (vehicle operating modes 8 in Fig. 6) completely in the given time.
In another embodiment, if controller 40 receives instruction vehicle and enters and start controller 54 positive first time
Attempt the message communicating with the remote-control key that user holds, then controller 40 can be excluded from the specific frequency that device 25 is charged
Band (vehicle operating modes 4 in Fig. 6).For example, if remote-control key is communicated with vehicle control device 54 in 125khz, then vehicle control
Device 54 processed is by by the controller 40 being indicated to induction charging system 30 of this fact of data packet broadcast.Control can be run afterwards
Device 40 come to delete 125khz about (115-135khz) frequency band, thus allow charging system 30 non-obstruction frequency band run.?
Reduce or suspend induction charging power (step 238 or 240) or adjust and fill according to vehicle operating modes 2 and 3 (steps 232)
After the frequency of electric system 30, controller 40 loops back step 228 to determine whether 911 assisted calls have been started up, and only
Am frequency band activation to be detected continues to circulation between step 228,230 and 232.
In another embodiment, the operation for excluding special frequency band can be entered with respect to vehicle depending on remote-control key
Enter and activation system position (vehicle operating modes 5 in Fig. 6).For example, start vehicle in step 234 to enter and activation system
Afterwards, triangulation can be done to the position coordinateses of remote-control key, to determine remote-control key away from the dress being charged by system 30
Put whether 25 be preset distance.If it is determined that remote-control key not in the preset distance of distance means 25 so that not with vehicle
The danger that the operation of entrance and activation system interferes, then charging system 30 can continue to run in full low-frequency band.If
Determine remote-control key in the preset distance of distance means 25 so that exist with vehicle entrance and activation system operation mutually dry
The danger disturbed, then controller 40 may proceed to exclude from the special frequency band (vehicle operating modes in Fig. 6 that device 25 is charged
5).
The special frequency band that the charge capacity of minimizing/pause device 25 or removal system 30 are currently running, is beneficial to reduce
Communication frequency between remote-control key and vehicle control device 40 is by by from the noise obstruct that device 25 induction charging is caused
Risk.However, removing frequency band or reducing the induction charging efficiency that power also can reduce device 25.Therefore, in step 234, such as
Fruit be not detected by vehicle enter and activation system inquiry start, then will not remove frequency band, and controller 40 by continue into
Row is to step 242.
Next, in step 242, controller 40 determines whether rechargeable device 25 is misplaced with charging system 30.Work as device
25 skid off and dislocation can be detected during following location, that is, lead to emitter and receiver coil skew to reach up to 12mm and do not have
There is the position of charging session termination, because the communication being not detected by between emitter and receptor.Dislocation is probably due in machine
During motor-car motion, rechargeable device 25 skids off optimal charge position and occurs.Shape according to mobile phone and side-play amount, dislocation can
Higher electromagnetic field (emf) energy sending in charging process can be led to from charging system 30, because seldom most preferably intercepting this
Plant the emf energy (that is, receiver coil and ferrite sheet) coming from handset receiver assembly.From system 30 send higher
Emf energy can increase the probability interfering with other systems.Therefore, when controller 40 detects device 25 dislocation,
Controller 40 continues to step 244, to keep full low frequency setting, but reduces the predetermined percentage of electricity that device 25 is charged
Than (operational mode 6 in Fig. 6).Reduce charge volume and will reduce the emf energy sending from charging system 30.Controller 40 circulates afterwards
Return step 228, to determine whether 911 assisted calls have been started up.
If controller 40 determines that device 25 does not misplace, then it continues to step 246, with visually to user
Indicate the renewal of charged state.This visible instruction can illustrate the new percentage ratio completing to charge of device 25.Control afterwards
Device 40 continues to step 248, to determine whether device 25 has completed to charge.Without, then controller 40 circulates
Return step 246, to determine the charged state of display.When device 25 has completed to charge, controller 40 continues to step
250, visually to indicate to the user that charge event completed and continued to terminal procedure.
Referring now to Fig. 8, show the method 300 that can be executed by controller 40 and exist in wireless receptor 56
The situation that am wave band runs and charger 30 is charging to rechargeable device 25 is generally using the method.When charger 30
When being currently running, in am wave band, operation receptor 56 there may be multiple challenges.The charging audio range frequency of charger 30 whole
Several times or harmonic wave can form interference, and under this interference, receptor 56 will lock.For example, if the basic charging of charger 30
Frequency is 110khz, then charge and will send the integral multiple of 110khz, and such as 220khz, 330khz, 440khz, 550khz's etc. is humorous
Ripple.These integral multiples can extend and radiate by am wave band, thus promote receptor 56 lock on these frequencies and
Prevent the other users effective scanning am wave band in driver or vehicle 10.
Method 300 starts from step 304, in this step 304, when charger 30 is activation, detection am wave band
Activation.Am wave band can by the virtual push button in physical button, switch, knob, man machine interface or the like, voice command,
Part or other Activiation methods as another order of event to activate.Am wave band can be activated in different modes, including
Scan pattern and tuning mode.In scan pattern, driver or user start am wave band scan pattern and am/fm receptor
56 pass through am frequency (for example in rising or falling process) from starting point (for example predetermined am frequency or the last frequency using)
Start automatically scanning, and stop or be selected in the frequency (for example, or briefly or for good and all) with signal.Adjusting
In humorous pattern, driver or user can manually advance by frequency or am wave band and be selected in required frequency.Once connecing
Receive device 56 to be activated in am wave band, receptor 56 just sends the signal of the activation of instruction am wave band to controller 40.Should
It is understood by although method 300 is interpreted to start when am wave band is activated during rechargeable device 25 charges, but method
300 can also be by be enabled by charging to rechargeable device 25 when receptor 56 has activated in am wave band.
Once controller 40 detects the activation of am wave band, execution is used for adjusting the charging audio range frequency of charger 30
And/or the step 308 of power.In different embodiments, as explained above, and then controller 40 senses in am wave band and sweeps
After retouching pattern or the selection of tuning mode, it is pre- that the charging audio range frequency of charger 30 is shifted (such as frequency up or down)
Fixed quantity (such as 2.5khz).In other embodiments, the displacement of the charging audio range frequency of charger 30 may be delayed by.Right
In the frequency displacement of charging audio range frequency, additionally or alternatively, charger 30 can reduce the instruction that it is activated according to am wave band
The charge power of rechargeable device 25 is provided.As indicated above, the power being delivered to rechargeable device 25 from charger 30 is permissible
It is completely eliminated (not charging) or reduce to the power of the required minimum that charges remaining about rechargeable device 25.
In some embodiments of tuning mode, before displacement charging wave band, the frequency of charger 30 is delayed by determine
Whether tuned frequency is in the predetermined portions of am wave band.The predetermined portions of am wave band can cover the scope of am audio range frequency,
In the range of being somebody's turn to do, the integral multiple of charging audio range frequency there may be and causes interference with receptor 56.The showing of the predetermined portions of am wave band
Example property scope changes to about 1500khz, changes to about 1000khz and from big from about 200khz from about 100khz
About 540khz changes to about 900khz.If as described above, the tuned frequency of the tuning mode sensing falls in am wave band
Predetermined portions, then controller can shift the charging audio range frequency of charger 30 at once.In different embodiments, if tuning frequency
Rate be located at threshold value on (for example in the about 100khz of the up or down frequency of predetermined portions) or be located at predetermined portions outside, then fill
Electrical equipment 30 can keep standard or normal charging audio range frequency and power.
Next step, in step 312, controller 40 determines the whether selected frequency of receptor 56.Implement different
In example, when receptor 56 has been tuned to a frequency predetermined hold-time amount, controller 40 can determine receptor 56
Select this frequency.For example, predetermined time amount can between about 0.11 second to about 25 seconds, about 1 second to about 20 seconds it
Between and the specific embodiment of about 15 seconds in.
Next step, in step 316, once controller 40 has determined that a frequency selected by receptor 56, controller 40 is just
Whether the frequency determining selection is the integral multiple of charging audio range frequency.If being charger 30 by the selected frequency of receptor 56
Charging audio range frequency integral multiple, then controller 40 charger 30 can be maintained at frequency and/or the power level of regulation.
If controller 40 determines that the frequency selected is not the integral multiple of charging audio range frequency, controller 40 transits to step
Rapid 320.In step 320, charging audio range frequency and/or power adjustments are back to charger 30 and rechargeable device by controller 40
25 normal or optimal charge state.In certain embodiments, the selected frequency based on receptor 56, the charging frequency of charger 30
Rate and/or power can be not shifted by being back to best allocation, but can be changed.
Therefore, radio induction charging system 30 advantageously reduces or prevents the energy sending to radiate in a certain charge frequency
Or run under a certain power level in charging zone.This advantageously prevents the electromagnetism that charger produces during wireless charging
The other devices of field interference or the operation of its neighbouring system.Wireless charging system 30 is specifically adapted for vehicle, has in vehicle
Many electronic installations running in the frequency band similar to wireless system.However, this system is also applied for other applications.Should manage
Solution, when object is detected and no longer disturbing other device, wireless charging can strengthen and restart.
It is also to be understood that, the change that aforesaid structure is made and is revised without departing from protection scope of the present invention,
Further it will be appreciated that, these concepts are covered by claim, unless the character express of these claim has phase
Anti- expression.
Claims (20)
1. a kind of method for reducing interference in induction charging system, methods described comprises:
With induction electricity charger, induction charging is carried out to rechargeable device;
The operation of receptor in detection am wave band;And
Based on the described operation of receptor described in described am wave band, adjust at least one of the following: described charger is adopted
Frequency band and the electricity being supplied to described rechargeable device by described charger.
2. method according to claim 1, wherein said receptor has the scanning mould running described in described am wave band
At least one in formula or tuning mode.
3. method according to claim 1, comprises step: detect that described receptor is selected in described am wave band further
One frequency is continued above predetermined time amount.
4. method according to claim 3, comprises step: determine whether described selected frequency is described sensing further
Charger is charged the integral multiple of residing frequency band to described rechargeable device.
5. method according to claim 4, comprises step: further if described selected frequency is not described sensing filled
Electrical equipment is charged the integral multiple of residing frequency band to described rechargeable device, then adjust at least one of the following: described fills
Described frequency band and the electricity being supplied to described rechargeable device by described charger that electrical equipment is adopted.
6. method according to claim 5, if wherein described selected frequency is not the institute of the operation of described charger
State the integral multiple of frequency band, then the described frequency band that described charger is adopted and being supplied to by described charger described can fill
The regulation of at least one of the electricity of electric installation is conditioned and returns to normal working frequency and normally run power.
7. method according to claim 1, is wherein supplied to the electricity of described rechargeable device by described charger
Adjust to be reduced to the electricity of offer to maintain and described rechargeable device is charged with required about minimum power.
8. a kind of charging system for reducing the interference during rechargeable device induction charging, comprises:
The charger of inductive power supply;And
Controller, described controller be configured to detect the selection of am tuning mode of the receptor near described charger and
If described receptor is tuned to the frequency in the predetermined portions of am wave band, adjust the frequency band that described charger is adopted.
9. charging system according to claim 8, wherein said controller regulation is supplied to described by described charger
The electricity of rechargeable device.
10. charging system according to claim 9, is wherein supplied to the electricity of described rechargeable device by described charger
The regulation of amount is the about minimum power adjusting to maintaining needed for described rechargeable device is charged.
11. charging systems according to claim 8, the described predetermined portions of wherein said am wave band prolong from about 200khz
Reach about 1000khz.
12. charging systems according to claim 11, the described predetermined portions of wherein said am wave band are from about 540khz
Extend to about 900khz.
13. charging systems according to claim 8, wherein said controller detects described receptor in described am wave band
Select a frequency in described predetermined portions and be continued above predetermined time amount.
14. charging systems according to claim 13, wherein said controller is configured to determine that described selected frequency is
No is the integral multiple that described charger is charged residing frequency band to described rechargeable device.
A kind of 15. onboard systems for reducing the interference during rechargeable device induction charging, comprise:
It is arranged on the charged area in vehicle;
The charger of inductive power supply;And
The controller communicating with described induction electricity charger, wherein said controller detects sweeping of the am frequency band near described charger
That retouches vehicle receiver in pattern runs and adjusts the frequency band that described charger is adopted.
16. systems according to claim 15, wherein said controller will be supplied to by described charger and described can fill
The electricity of electric installation is adjusted to the about minimum power maintaining needed for described rechargeable device is charged.
17. systems according to claim 15, wherein said controller detects the institute in described am wave band for the described receptor
State a selected frequency in predetermined portions and be continued above predetermined time amount.
18. systems according to claim 17, wherein said controller is configured to detect that whether described selected frequency is
Described charger is charged the integral multiple of residing frequency band to described rechargeable device.
19. systems according to claim 18, if it is not institute that wherein said controller is configured to described selected frequency
State the integral multiple that induction electricity charger is charged residing frequency band to described rechargeable device, then at least during regulation is following
Individual: described frequency band and the electricity being supplied to described rechargeable device by described charger that described charger is adopted.
20. systems according to claim 15, wherein said charger is in the charging frequency of the harmonic wave with described am frequency band
Rate carries out induction charging to described rechargeable device.
Applications Claiming Priority (2)
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US14/803,911 US9455596B2 (en) | 2012-10-16 | 2015-07-20 | System and method for reducing interference between wireless charging and amplitude modulation reception |
US14/803,911 | 2015-07-20 |
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KR102517345B1 (en) * | 2017-12-27 | 2023-04-03 | 삼성전자주식회사 | Method and system for charging mobile device in vehicle |
DE102018125222A1 (en) * | 2018-10-11 | 2020-04-16 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | System for a vehicle |
DE102020211037A1 (en) | 2020-09-02 | 2022-03-03 | Ford Global Technologies, Llc | Motor vehicle with inductive charging device |
FR3127181A1 (en) * | 2021-09-23 | 2023-03-24 | Psa Automobiles Sa | Method and device for controlling a wireless charging system for a wireless communication device on board a vehicle |
FR3129559A1 (en) * | 2021-11-23 | 2023-05-26 | Psa Automobiles Sa | Method and device for controlling a wireless charging system for a wireless communication device on board a vehicle |
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