CN108206569A - Wireless power transmission, reception device, system and electric vehicle - Google Patents
Wireless power transmission, reception device, system and electric vehicle Download PDFInfo
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- CN108206569A CN108206569A CN201711484400.4A CN201711484400A CN108206569A CN 108206569 A CN108206569 A CN 108206569A CN 201711484400 A CN201711484400 A CN 201711484400A CN 108206569 A CN108206569 A CN 108206569A
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- lithium battery
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- 230000005540 biological transmission Effects 0.000 title abstract description 5
- 238000001514 detection method Methods 0.000 claims abstract description 31
- 230000001105 regulatory effect Effects 0.000 claims abstract description 13
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 86
- 229910052744 lithium Inorganic materials 0.000 claims description 86
- 230000005611 electricity Effects 0.000 claims description 51
- 238000000034 method Methods 0.000 claims description 14
- 238000011084 recovery Methods 0.000 claims description 12
- 238000004891 communication Methods 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 5
- 238000013528 artificial neural network Methods 0.000 claims description 3
- 238000012790 confirmation Methods 0.000 claims description 3
- 210000001367 artery Anatomy 0.000 claims 1
- 210000003462 vein Anatomy 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Classifications
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- H02J7/025—
-
- 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
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of wireless power transmission, reception device, system and electric vehicle, including：Wireless power transmit coil, first aligning regulating device, first charging time control module, first power controller, first aligning regulating device includes control module, horizontal axis adjusts module, the longitudinal axis adjusts module, receiving coil detection module, the receiving coil detection module includes pulse transmitting element, feedback unit, output unit, the pulse transmitting element sends an at least pulse signal, the feedback unit responds the feedback signal of the pulse signal according to the receiving coil, judge the location information of receiving coil, the first charging time control module carries out charge completion time control, first power controller controls wireless power transmit coil to send wireless power according to charge completion time.The application can respond battery capacity in wireless charging, carry out power and adjust in real time, extend batteries of electric automobile service life.
Description
Technical field
The present invention relates to wireless charging field, more particularly to a kind of wireless power transmission, reception device, system and electronic vapour
Vehicle, it is especially a kind of by realizing that the characteristic that intelligent charge is adjusted can be directed to lithium battery in electric vehicle extends lithium automatically
The method of the service life of battery.
Background technology
Electric vehicle due to largely being bought and being used by people by government subsidy, these electric vehicles
Cruising ability is the content that people extremely pay close attention to.And the power of cruising ability is related to the property of battery in itself.And with battery
Use, i.e. charging repeatedly, the electric discharge of battery process, the property of battery in itself can change so that cruising ability becomes
It obtains worse and worse, this is also the main reason for most people do not select electric vehicle.
Due to the feature of lithium battery inherently so that it is widely applied in mobile terminal.However, existing charging
Mode is not reset for lithium battery itself, the past charging modes still used, for example, compared with low battery,
Usually less than 20%, then it charges, charges to 100% always, and electricity is kept to be disconnected to 100% until with power supply.It is this to fill
Electric mode causes the service life of lithium battery drastically to reduce.
Invention content
Therefore, in view of the above-mentioned problems, the present invention provides a kind of electric vehicle wireless power sending device, including：Wirelessly
Electric power transmit coil, the first aligning regulating device, the first charging time control module, the first power controller, described first pair
Quasi- regulating device includes control module, horizontal axis adjustment module, longitudinal axis adjustment module, receiving coil detection module, the reception line
It encloses detection module and includes pulse transmitting element, feedback unit, output unit, the pulse transmitting element sends at least pulse letter
Number, the feedback unit responds the feedback signal of the pulse signal according to the receiving coil, judges the position of receiving coil
Information, the first charging time control module carry out charge completion time control, the first power power controller according to
Charge completion time control wireless power transmit coil sends wireless power.
A kind of electric vehicle wireless power sending device, wherein, the first charging time control module includes
Electric power detection unit, predicting unit；The electric power detection unit receives the output unit of the receiving coil detection module
After being directed at confirmation message, residual capacity measurement is carried out to the battery of electric vehicle, the predicting unit is according to residual capacity measurement
Prediction of result charge completion time Tset；The predicting unit carries out charge completion time T according to neural networksetPrediction.
A kind of electric vehicle wireless power sending device, wherein, the first power power controller is according to filling
Electric deadline control wireless power transmit coil sends wireless power and specifically includes：
When electric quantity of lithium battery is less than 30% in electric vehicle, opens fast charge mode and wirelessly electric vehicle is filled
Electricity measures battery capacity when detecting that electric quantity of lithium battery is promoted to 30% in charging process in real time, closes fast charge mode,
The timing simultaneously of wireless power sending device obtains electricity recovery time T in charging processrestore；
When battery capacity reaches 30%, wireless power sending device calculates remaining time Tresi, Tresi=Tset-Trestore, simultaneously
The difference and electricity recovery time T between battery capacity and 30% electricity when being accessed according to lithium batteryrestoreObtain the battery
Quick charge characteristic, and according to needed for the quick charge Predicting Performance Characteristics battery from 30% electricity quick charge to 100% electricity
The time T wantedfullAnd predict the lithium battery from the required time T of 50% electricity quick charge to 100% electricityh-full；
Wireless power sending device judges TresiWith Tfull、Th-fullBetween relationship, and according to judging result carry out charging modes
Control.
A kind of electric vehicle wireless power sending device, wherein, the wireless power sending device judges Tresi
With Tfull、Th-fullBetween relationship, and according to judging result carry out charging modes control specifically include：
Work as TresiNo more than TfullWhen, it has charged even if that can only cause battery by the way of quick charge always in expection
Full power state can just have been reached when arriving into the time can't even reach full power state, then wireless power sending device is opened quick
Charge mode charges to the lithium battery in electric vehicle；
Work as TresiMore than TfullWhen, i.e., the enough batteries of expected charge completion time are fully charged and when having residue, wireless power is sent
Device calculates chargeable by trickle charge time Tslow, Tslow=Tresi-Th-full, wireless power sending device is according to the chargeable by trickle charge time
TslowSelect the trickle current numerical value that should be set, chargeable by trickle charge time TslowMore big then trickle current numerical value is smaller, radio
Power sending device first opens trickle charge pattern and carries out trickle charge to the lithium battery in electric vehicle, until electric quantity of lithium battery reaches
To trickle charge pattern is closed when 50%, it is then turned on fast charge mode and quick charge is carried out to the lithium battery in electric vehicle.
A kind of electric vehicle wireless power reception device, including wireless power receiving coil, the second aligning regulating device, electricity
Pond administrative unit BMS, second aligning regulating device include control module, horizontal axis adjustment module, longitudinal axis adjustment module, send
Coil Detector module, the transmit coil detection module include pulse transmitting element, feedback unit, output unit, the pulse
Transmitting element sends an at least pulse signal, and the feedback unit responds the feedback of the pulse signal according to the receiving coil
Signal judges the location information of transmit coil, and the battery management unit BMS carries out charge completion time control, according to charging
Deadline control wireless power transmit coil sends wireless power.
A kind of electric vehicle wireless power reception device, wherein, the battery management unit BMS charged
Into time control, wireless power transmit coil is controlled to send wireless power according to charge completion time and specifically included：
（1）The electricity of lithium battery in battery management system BMS detection electric vehicles in electric vehicle, when lithium electricity in electric vehicle
When pond electricity is less than 30%, electric quantity of lithium battery and at once charge request are sent to wireless power by communication device and sent by BMS
Device, the information that the detection of wireless power sending device receives, when information is less than 30% for charge request at once and electric quantity of lithium battery
When open fast charge mode immediately and wirelessly charge to lithium battery, BMS measures lithium battery in real time in charging process
It measures and gives the lithium battery numerical quantity measured in real time to wireless power sending device by communication device transfers, when wireless power is sent out
When sending the device to detect that electric quantity of lithium battery is promoted to 30%, fast charge mode is closed, stops charging, radio in charging process
The timing simultaneously of power sending device obtains electricity recovery time Trestore；
（2）It, will expected charge completion time T by communication device when electric quantity of lithium battery reaches 30%setIt is sent to wireless power
Sending device, wireless power sending device calculate remaining time Tresi, Tresi=Tset-Trestore, while when being accessed according to lithium battery
Battery capacity and 30% electricity between difference and electricity recovery time TrestoreShow that the quick charge of the lithium battery is special
Property, and according to the quick charge Predicting Performance Characteristics lithium battery from 30% electricity quick charge to the 100% electricity required time
TfullAnd predict the lithium battery from the required time T of 50% electricity quick charge to 100% electricityh-full；
（3）Wireless power sending device judges TresiWith Tfull、Th-fullBetween relationship, and charged according to judging result
Mode controls.
A kind of electric vehicle wireless power reception device, wherein, the wireless power sending device judges Tresi
With Tfull、Th-fullBetween relationship, and according to judging result carry out charging modes control specifically include：
Work as TresiNo more than TfullWhen, it charges even if that can only cause lithium battery by the way of quick charge always expected
Deadline can just reach full power state when arriving can't even reach full power state, then wireless power sending device is opened fast
Fast charge mode charges to the lithium battery in electric vehicle；
Work as TresiMore than TfullWhen, i.e., the enough lithium batteries of expected charge completion time are fully charged and when having residue, wireless power is sent out
Device is sent to calculate chargeable by trickle charge time Tslow, Tslow=Tresi-Th-full, when wireless power sending device is according to chargeable by trickle charge
Between TslowSelect the trickle current numerical value that should be set, chargeable by trickle charge time TslowMore big then trickle current numerical value is smaller, wirelessly
Electric power sending device first opens trickle charge pattern and carries out trickle charge to the lithium battery in electric vehicle, until electric quantity of lithium battery
Trickle charge pattern is closed when reaching 50%, fast charge mode is then turned on and quick charge is carried out to the lithium battery in electric vehicle.
A kind of electric vehicle wireless power reception device, wherein, the feedback unit sets calibration pulse quantity,
The pulse signal transmitting element sends series of pulse signals in specified period, and the feedback unit detection receiving coil is anti-
The quantity of the pulse signal received of feedback, when the number differences of calibration pulse quantity and the pulse signal of the feedback are less than the
During one pulse threshold, then judge that transmit coil is aligned with receiving coil, when difference is located at the first pulse threshold and the second pulse threshold
When between value, then judge that transmit coil is not aligned completely with receiving coil, but transmittable power, when difference is more than the second pulse threshold
During value, then non-transmittable power is judged.
A kind of wireless power conveyer system, wherein, including the electric vehicle wireless power hair as described in above-mentioned any one
Send device or a kind of electric vehicle wireless power reception device as described in above-mentioned any one.
A kind of electric vehicle, including a kind of electric vehicle wireless power reception device as described in above-mentioned any one.
The application can respond battery capacity in wireless charging, carry out power and adjust in real time, extend batteries of electric automobile
Service life.
Description of the drawings
Fig. 1 is the schematic diagram of the application wireless power conveyer system.
Specific embodiment
As shown in Figure 1, the schematic diagram for the application wireless power conveyer system, wherein, including wireless power sending device
With wireless power reception device.Wireless power sending device and wireless power reception device by transmit coil and receiving coil into
Row wireless power transmission.
A kind of electric vehicle wireless power sending device of the application, including：Wireless power transmit coil, the first alignment are adjusted
Device, the first charging time control module, the first power controller, first aligning regulating device include control module, horizontal stroke
Axial adjustment module, longitudinal axis adjustment module, receiving coil detection module, the receiving coil detection module include pulse and send list
Member, feedback unit, output unit, the pulse transmitting element send an at least pulse signal, and the feedback unit is according to
Receiving coil responds the feedback signal of the pulse signal, judges the location information of receiving coil, the first charging time control
Molding block carries out charge completion time control, and the first power power controller controls wireless power according to charge completion time
Transmit coil sends wireless power.
A kind of electric vehicle wireless power sending device, wherein, the first charging time control module includes
Electric power detection unit, predicting unit；The electric power detection unit receives the output unit of the receiving coil detection module
After being directed at confirmation message, residual capacity measurement is carried out to the battery of electric vehicle, the predicting unit is according to residual capacity measurement
Prediction of result charge completion time Tset；The predicting unit carries out charge completion time T according to neural networksetPrediction.
A kind of electric vehicle wireless power sending device, wherein, the first power power controller is according to filling
Electric deadline control wireless power transmit coil sends wireless power and specifically includes：
When electric quantity of lithium battery is less than 30% in electric vehicle, opens fast charge mode and wirelessly electric vehicle is filled
Electricity measures battery capacity when detecting that electric quantity of lithium battery is promoted to 30% in charging process in real time, closes fast charge mode,
The timing simultaneously of wireless power sending device obtains electricity recovery time T in charging processrestore；
When battery capacity reaches 30%, wireless power sending device calculates remaining time Tresi, Tresi=Tset-Trestore, simultaneously
The difference and electricity recovery time T between battery capacity and 30% electricity when being accessed according to lithium batteryrestoreObtain the battery
Quick charge characteristic, and according to needed for the quick charge Predicting Performance Characteristics battery from 30% electricity quick charge to 100% electricity
The time T wantedfullAnd predict the lithium battery from the required time T of 50% electricity quick charge to 100% electricityh-full；
Wireless power sending device judges TresiWith Tfull、Th-fullBetween relationship, and according to judging result carry out charging modes
Control.
A kind of electric vehicle wireless power sending device, wherein, the wireless power sending device judges Tresi
With Tfull、Th-fullBetween relationship, and according to judging result carry out charging modes control specifically include：
Work as TresiNo more than TfullWhen, it has charged even if that can only cause battery by the way of quick charge always in expection
Full power state can just have been reached when arriving into the time can't even reach full power state, then wireless power sending device is opened quick
Charge mode charges to the lithium battery in electric vehicle；
Work as TresiMore than TfullWhen, i.e., the enough batteries of expected charge completion time are fully charged and when having residue, wireless power is sent
Device calculates chargeable by trickle charge time Tslow, Tslow=Tresi-Th-full, wireless power sending device is according to the chargeable by trickle charge time
TslowSelect the trickle current numerical value that should be set, chargeable by trickle charge time TslowMore big then trickle current numerical value is smaller, radio
Power sending device first opens trickle charge pattern and carries out trickle charge to the lithium battery in electric vehicle, until electric quantity of lithium battery reaches
To trickle charge pattern is closed when 50%, it is then turned on fast charge mode and quick charge is carried out to the lithium battery in electric vehicle.
A kind of electric vehicle wireless power reception device, including wireless power receiving coil, the second aligning regulating device, electricity
Pond administrative unit BMS, second aligning regulating device include control module, horizontal axis adjustment module, longitudinal axis adjustment module, send
Coil Detector module, the transmit coil detection module include pulse transmitting element, feedback unit, output unit, the pulse
Transmitting element sends an at least pulse signal, and the feedback unit responds the feedback of the pulse signal according to the receiving coil
Signal judges the location information of transmit coil, and the battery management unit BMS carries out charge completion time control, according to charging
Deadline control wireless power transmit coil sends wireless power.
A kind of electric vehicle wireless power reception device, wherein, the battery management unit BMS charged
Into time control, wireless power transmit coil is controlled to send wireless power according to charge completion time and specifically included：
（1）The electricity of lithium battery in battery management system BMS detection electric vehicles in electric vehicle, when lithium electricity in electric vehicle
When pond electricity is less than 30%, electric quantity of lithium battery and at once charge request are sent to wireless power by communication device and sent by BMS
Device, the information that the detection of wireless power sending device receives, when information is less than 30% for charge request at once and electric quantity of lithium battery
When open fast charge mode immediately and wirelessly charge to lithium battery, BMS measures lithium battery in real time in charging process
It measures and gives the lithium battery numerical quantity measured in real time to wireless power sending device by communication device transfers, when wireless power is sent out
When sending the device to detect that electric quantity of lithium battery is promoted to 30%, fast charge mode is closed, stops charging, radio in charging process
The timing simultaneously of power sending device obtains electricity recovery time Trestore；
（2）It, will expected charge completion time T by communication device when electric quantity of lithium battery reaches 30%setIt is sent to wireless power
Sending device, wireless power sending device calculate remaining time Tresi, Tresi=Tset-Trestore, while when being accessed according to lithium battery
Battery capacity and 30% electricity between difference and electricity recovery time TrestoreShow that the quick charge of the lithium battery is special
Property, and according to the quick charge Predicting Performance Characteristics lithium battery from 30% electricity quick charge to the 100% electricity required time
TfullAnd predict the lithium battery from the required time T of 50% electricity quick charge to 100% electricityh-full；
（3）Wireless power sending device judges TresiWith Tfull、Th-fullBetween relationship, and charged according to judging result
Mode controls.
A kind of electric vehicle wireless power reception device, wherein, the wireless power sending device judges Tresi
With Tfull、Th-fullBetween relationship, and according to judging result carry out charging modes control specifically include：
Work as TresiNo more than TfullWhen, it charges even if that can only cause lithium battery by the way of quick charge always expected
Deadline can just reach full power state when arriving can't even reach full power state, then wireless power sending device is opened fast
Fast charge mode charges to the lithium battery in electric vehicle；
Work as TresiMore than TfullWhen, i.e., the enough lithium batteries of expected charge completion time are fully charged and when having residue, wireless power is sent out
Device is sent to calculate chargeable by trickle charge time Tslow, Tslow=Tresi-Th-full, when wireless power sending device is according to chargeable by trickle charge
Between TslowSelect the trickle current numerical value that should be set, chargeable by trickle charge time TslowMore big then trickle current numerical value is smaller, wirelessly
Electric power sending device first opens trickle charge pattern and carries out trickle charge to the lithium battery in electric vehicle, until electric quantity of lithium battery
Trickle charge pattern is closed when reaching 50%, fast charge mode is then turned on and quick charge is carried out to the lithium battery in electric vehicle.
A kind of electric vehicle wireless power reception device, wherein, the feedback unit sets calibration pulse quantity,
The pulse signal transmitting element sends series of pulse signals in specified period, and the feedback unit detection receiving coil is anti-
The quantity of the pulse signal received of feedback, when the number differences of calibration pulse quantity and the pulse signal of the feedback are less than the
During one pulse threshold, then judge that transmit coil is aligned with receiving coil, when difference is located at the first pulse threshold and the second pulse threshold
When between value, then judge that transmit coil is not aligned completely with receiving coil, but transmittable power, when difference is more than the second pulse threshold
During value, then non-transmittable power is judged.
A kind of wireless power conveyer system, wherein, including the electric vehicle wireless power hair as described in above-mentioned any one
Send device or a kind of electric vehicle wireless power reception device as described in above-mentioned any one.
A kind of electric vehicle, including a kind of electric vehicle wireless power reception device as described in above-mentioned any one.
The application can respond battery capacity in wireless charging, carry out power and adjust in real time, extend batteries of electric automobile
Service life.
It is it should be noted that made for the present invention further specifically the above content is specific embodiment is combined
It is bright, it is impossible to assert that the specific embodiment of the present invention is only limitted to this, under the above-mentioned guidance of the present invention, those skilled in the art can
To carry out various improvement and deformation on the basis of above-described embodiment, and these are improved or deformation is fallen in protection model of the invention
In enclosing.
Claims (10)
1. a kind of electric vehicle wireless power sending device, which is characterized in that including：Wireless power transmit coil, the first alignment
Regulating device, the first charging time control module, the first power controller, first aligning regulating device include control mould
Block, horizontal axis adjustment module, longitudinal axis adjustment module, receiving coil detection module, the receiving coil detection module are sent out including pulse
Send unit, feedback unit, output unit, the pulse transmitting element sends an at least pulse signal, the feedback unit according to
The receiving coil responds the feedback signal of the pulse signal, judges the location information of receiving coil, during first charging
Between control module carry out charge completion time control, first power controller according to charge completion time control wireless power
Transmit coil sends wireless power.
2. a kind of electric vehicle wireless power sending device as described in claim 1, which is characterized in that during first charging
Between control module include electric power detection unit, predicting unit；The electric power detection unit receives the receiving coil detection module
Output unit alignment confirmation message after, carry out residual capacity measurement to the battery of electric vehicle, the predicting unit is according to remaining
Remaining electric power detection prediction of result charge completion time Tset；The predicting unit carries out charge completion time T according to neural networkset
Prediction.
A kind of 3. electric vehicle wireless power sending device according to claim 2, which is characterized in that first power
Controller controls wireless power transmit coil to send wireless power and specifically includes according to charge completion time：
When electric quantity of lithium battery is less than 30% in electric vehicle, opens fast charge mode and wirelessly electric vehicle is filled
Electricity measures battery capacity when detecting that electric quantity of lithium battery is promoted to 30% in charging process in real time, closes fast charge mode,
The timing simultaneously of wireless power sending device obtains electricity recovery time T in charging processrestore；
When battery capacity reaches 30%, wireless power sending device calculates remaining time Tresi, Tresi=Tset-Trestore, simultaneously
The difference and electricity recovery time T between battery capacity and 30% electricity when being accessed according to lithium batteryrestoreObtain the battery
Quick charge characteristic, and according to needed for the quick charge Predicting Performance Characteristics battery from 30% electricity quick charge to 100% electricity
The time T wantedfullAnd predict the lithium battery from the required time T of 50% electricity quick charge to 100% electricityh-full；
Wireless power sending device judges TresiWith Tfull、Th-fullBetween relationship, and according to judging result carry out charging modes
Control.
A kind of 4. electric vehicle wireless power sending device according to claim 3, which is characterized in that the wireless power
Sending device judges TresiWith Tfull、Th-fullBetween relationship, and according to judging result carry out charging modes control specifically include：
Work as TresiNo more than TfullWhen, it has charged even if that can only cause battery by the way of quick charge always in expection
Full power state can just have been reached when arriving into the time can't even reach full power state, then wireless power sending device is opened quick
Charge mode charges to the lithium battery in electric vehicle；
Work as TresiMore than TfullWhen, i.e., the enough batteries of expected charge completion time are fully charged and when having residue, wireless power sends dress
It puts and calculates chargeable by trickle charge time Tslow, Tslow=Tresi-Th-full, wireless power sending device is according to the chargeable by trickle charge time
TslowSelect the trickle current numerical value that should be set, chargeable by trickle charge time TslowMore big then trickle current numerical value is smaller, radio
Power sending device first opens trickle charge pattern and carries out trickle charge to the lithium battery in electric vehicle, until electric quantity of lithium battery reaches
To trickle charge pattern is closed when 50%, it is then turned on fast charge mode and quick charge is carried out to the lithium battery in electric vehicle.
5. a kind of electric vehicle wireless power reception device, which is characterized in that adjusted including wireless power receiving coil, the second alignment
Regulating device, battery management unit BMS, second aligning regulating device include control module, horizontal axis adjustment module, longitudinal axis adjustment
Module, transmit coil detection module, the transmit coil detection module include pulse transmitting element, feedback unit, output unit,
The pulse transmitting element sends an at least pulse signal, and the feedback unit responds the pulse according to the receiving coil to be believed
Number feedback signal, judge the location information of transmit coil, the battery management unit BMS carries out charge completion time control,
Wireless power transmit coil is controlled to send wireless power according to charge completion time.
A kind of 6. electric vehicle wireless power reception device according to claim 5, which is characterized in that the battery management
Unit B MS carries out charge completion time control, wireless power transmit coil is controlled to send wireless power according to charge completion time
It specifically includes：
（1）The electricity of lithium battery in battery management system BMS detection electric vehicles in electric vehicle, when lithium electricity in electric vehicle
When pond electricity is less than 30%, electric quantity of lithium battery and at once charge request are sent to wireless power by communication device and sent by BMS
Device, the information that the detection of wireless power sending device receives, when information is less than 30% for charge request at once and electric quantity of lithium battery
When open fast charge mode immediately and wirelessly charge to lithium battery, BMS measures lithium battery in real time in charging process
It measures and gives the lithium battery numerical quantity measured in real time to wireless power sending device by communication device transfers, when wireless power is sent out
When sending the device to detect that electric quantity of lithium battery is promoted to 30%, fast charge mode is closed, stops charging, radio in charging process
The timing simultaneously of power sending device obtains electricity recovery time Trestore；
（2）It, will expected charge completion time T by communication device when electric quantity of lithium battery reaches 30%setIt is sent to wireless power
Sending device, wireless power sending device calculate remaining time Tresi, Tresi=Tset-Trestore, while when being accessed according to lithium battery
Battery capacity and 30% electricity between difference and electricity recovery time TrestoreShow that the quick charge of the lithium battery is special
Property, and according to the quick charge Predicting Performance Characteristics lithium battery from 30% electricity quick charge to the 100% electricity required time
TfullAnd predict the lithium battery from the required time T of 50% electricity quick charge to 100% electricityh-full；
（3）Wireless power sending device judges TresiWith Tfull、Th-fullBetween relationship, and charging side is carried out according to judging result
Formula controls.
A kind of 7. electric vehicle wireless power reception device according to claim 6, which is characterized in that the wireless power
Sending device judges TresiWith Tfull、Th-fullBetween relationship, and according to judging result carry out charging modes control specifically include：
Work as TresiNo more than TfullWhen, it charges even if that can only cause lithium battery by the way of quick charge always expected
Deadline can just reach full power state when arriving can't even reach full power state, then wireless power sending device is opened fast
Fast charge mode charges to the lithium battery in electric vehicle；
Work as TresiMore than TfullWhen, i.e., the enough lithium batteries of expected charge completion time are fully charged and when having residue, wireless power is sent
Device calculates chargeable by trickle charge time Tslow, Tslow=Tresi-Th-full, wireless power sending device is according to the chargeable by trickle charge time
TslowSelect the trickle current numerical value that should be set, chargeable by trickle charge time TslowMore big then trickle current numerical value is smaller, radio
Power sending device first opens trickle charge pattern and carries out trickle charge to the lithium battery in electric vehicle, until electric quantity of lithium battery reaches
To trickle charge pattern is closed when 50%, it is then turned on fast charge mode and quick charge is carried out to the lithium battery in electric vehicle.
A kind of 8. electric vehicle wireless power reception device according to claim 7, which is characterized in that the feedback unit
Calibration pulse quantity is set, and the pulse signal transmitting element sends series of pulse signals, the feedback in specified period
The quantity of the pulse signal received of unit detection receiving coil feedback, when the pulse of calibration pulse quantity and the feedback is believed
Number number differences be less than the first pulse threshold when, then judge that transmit coil is aligned with receiving coil, when difference is located at the first arteries and veins
When rushing between threshold value and the second pulse threshold, then judge that transmit coil is not aligned completely with receiving coil, but transmittable power, when
When difference is more than the second pulse threshold, then non-transmittable power is judged.
9. a kind of wireless power conveyer system, which is characterized in that including the electric vehicle as described in claim 1-4 any one
Wireless power sending device or a kind of electric vehicle wireless power reception device as described in claim 5-8 any one.
10. a kind of electric vehicle, which is characterized in that including a kind of electric vehicle as described in claim 5-8 any one without
Line power receiving system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711484400.4A CN108206569B (en) | 2017-12-29 | 2017-12-29 | Wireless power transmitting and receiving device and system and electric automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711484400.4A CN108206569B (en) | 2017-12-29 | 2017-12-29 | Wireless power transmitting and receiving device and system and electric automobile |
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| CN105811486A (en) * | 2014-12-31 | 2016-07-27 | 深圳市泰金田科技有限公司 | Positioning method for electric automobile wireless charging device |
| CN105990866A (en) * | 2015-02-10 | 2016-10-05 | 深圳酷派技术有限公司 | Charging method, device and terminal thereof |
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