CN107231031A - Wireless charging device and method for electric vehicle - Google Patents

Wireless charging device and method for electric vehicle Download PDF

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Publication number
CN107231031A
CN107231031A CN201610170876.XA CN201610170876A CN107231031A CN 107231031 A CN107231031 A CN 107231031A CN 201610170876 A CN201610170876 A CN 201610170876A CN 107231031 A CN107231031 A CN 107231031A
Authority
CN
China
Prior art keywords
booster
frequency
wireless charging
vehicle
electric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610170876.XA
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Chinese (zh)
Inventor
翁鹏程
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SAIC General Motors Corp Ltd
Pan Asia Technical Automotive Center Co Ltd
Original Assignee
SAIC General Motors Corp Ltd
Pan Asia Technical Automotive Center Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SAIC General Motors Corp Ltd, Pan Asia Technical Automotive Center Co Ltd filed Critical SAIC General Motors Corp Ltd
Priority to CN201610170876.XA priority Critical patent/CN107231031A/en
Publication of CN107231031A publication Critical patent/CN107231031A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/022Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters characterised by the type of converter
    • H02J7/025Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters characterised by the type of converter using non-contact coupling, e.g. inductive, capacitive
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12Inductive energy transfer
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0027Stations for charging mobile units, e.g. of electric vehicles, of mobile telephones
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/14Plug-in electric vehicles

Abstract

The present invention proposes the wireless charging method and device for electric vehicle, and methods described includes:Alternating current is inputted to the High Level AC Voltage for being converted into high frequency;The High Level AC Voltage of the high frequency is converted into the magnetic field of conversion by transmitter;The magnetic field of the conversion is strengthened by booster and is converted into the electric current for being charged to the electrokinetic cell in the vehicle to enable the receiver in vehicle to receive the magnetic field of the enhanced conversion.Wireless charging method and device disclosed in this invention for electric vehicle can carry out wireless charging in bigger coverage to the electrokinetic cell of vehicle.

Description

Wireless charging device and method for electric vehicle
Technical field
The present invention relates to charging device and method, more particularly, to the wireless charging device and method for electric vehicle.
Background technology
At present, becoming increasingly popular with electric automobile and hybrid vehicle, for the electrokinetic cell in vehicle(As vehicle provides the power source of active force or auxiliary power)Continuation of the journey charging become more and more important.
In existing technical scheme, the charging of wireless mode is generally carried out to the electrokinetic cell in vehicle by the way of inductively, i.e., realizes being wirelessly transferred for electric energy using electromagnetic induction principle and based on separable transformer.
Obviously, there are the following problems for above-mentioned existing technical scheme:Due to being wirelessly transferred only with mode inductively to electric energy, therefore the coverage of its transmission is limited, generally only in the range of some centimetres, thus, when vehicle is not in or is difficult to be in coverage, it may occur that situation about can not charge normal.
Accordingly, there exist following demand:The wireless charging device and method for electric vehicle of wireless charging can be carried out in bigger coverage to the electrokinetic cell of vehicle by providing.
The content of the invention
In order to solve the problems of above-mentioned prior art, the present invention, which is proposed, to carry out the wireless charging device and method for electric vehicle of wireless charging to the electrokinetic cell of vehicle in bigger coverage.
The purpose of the present invention is achieved through the following technical solutions:
A kind of wireless charging device for electric vehicle, the wireless charging device for electric vehicle includes:
Alternating current is inputted and is converted into the High Level AC Voltage of high frequency by high frequency electric source driver element, the high frequency electric source driver element, and by the high-voltage alternating electrical transmission of the high frequency to transmitter;
The High Level AC Voltage of the high frequency is converted into the magnetic field of conversion by transmitter, the transmitter, and the magnetic field of the conversion is passed through booster;
Booster, the booster strengthens the magnetic field of the conversion and is converted into the electric current for being charged to the electrokinetic cell in the vehicle to enable the receiver in vehicle to receive the magnetic field of the enhanced conversion.
In scheme disclosed above, it is preferable that the high frequency electric source driver element inputs alternating current by way of rectifying and wave-filtering and high-frequency inversion the High Level AC Voltage for being converted into high frequency.
In scheme disclosed above, it is preferable that the transmitter includes transmitting coil, and the transmitting coil has high intrinsic frequency and big diameter, so that the transmission range of the High Level AC Voltage of the high frequency is more than predetermined threshold value.
In scheme disclosed above, it is preferable that the booster includes independent LC resonant tanks, and it enables to the two ends of booster to have good sinusoidal voltage waveform.
In scheme disclosed above, it is preferable that the LC resonant tanks include booster coil and booster electric capacity, and cause the electric current in resonance in the booster coil to be more than the electric current in the transmitting coil of transmitter.
In scheme disclosed above, preferably, described device further comprises booster positioner, it receives the charge data that the vehicle charged wirelessly feeds back during Vehicular charging, and the position of booster is adjusted based on the charge data, so that the booster coil of booster reaches optimum resonance.
In scheme disclosed above simultaneously, it is preferable that described device can support multiple vehicles to charge.
The purpose of the present invention is also achieved through the following technical solutions:
A kind of wireless charging method for electric vehicle, the wireless charging method for electric vehicle comprises the following steps:
(A1)Alternating current is inputted to the High Level AC Voltage for being converted into high frequency;
(A2)The High Level AC Voltage of the high frequency is converted into the magnetic field of conversion by transmitter;
(A3)The magnetic field of the conversion is strengthened by booster and is converted into the electric current for being charged to the electrokinetic cell in the vehicle to enable the receiver in vehicle to receive the magnetic field of the enhanced conversion.
Wireless charging device and method disclosed in this invention for electric vehicle has the following advantages that:Wireless charging can be carried out to the electrokinetic cell of vehicle in bigger coverage, and support multiple vehicles to charge simultaneously.
Brief description of the drawings
With reference to accompanying drawing, technical characteristic of the invention and advantage will be more fully understood by those skilled in the art, wherein:
Fig. 1 is the schematic diagram for the wireless charging device for being used for electric vehicle according to an embodiment of the invention;
Fig. 2 is the flow chart for the wireless charging method for being used for electric vehicle according to an embodiment of the invention.
Embodiment
Fig. 1 is the schematic diagram for the wireless charging device for being used for electric vehicle according to an embodiment of the invention.As shown in figure 1, the wireless charging device disclosed in this invention for electric vehicle includes high frequency electric source driver element 1, transmitter 2, booster 3.Wherein, alternating current is inputted and is converted into the High Level AC Voltage of high frequency by the high frequency electric source driver element 1, and by the high-voltage alternating electrical transmission of the high frequency to transmitter 2.The High Level AC Voltage of the high frequency is converted into the magnetic field of conversion by the transmitter 2, and the magnetic field of the conversion is passed through booster 3.The booster 3 strengthens the magnetic field of the conversion and is converted into the electric current for being charged to the electrokinetic cell in the vehicle to enable the receiver in vehicle to receive the magnetic field of the enhanced conversion.
Preferably, in the wireless charging device disclosed in this invention for electric vehicle, high frequency electric source driver element 1 inputs alternating current by way of rectifying and wave-filtering and high-frequency inversion the High Level AC Voltage for being converted into high frequency.
Preferably, in the wireless charging device disclosed in this invention for electric vehicle, the transmitter 2 includes transmitting coil, and the transmitting coil has high intrinsic frequency and big diameter, so that the transmission range of the High Level AC Voltage of the high frequency is more than predetermined threshold value(Exemplary, the predetermined threshold value is in the range of several meters to tens meters).
Preferably, in the wireless charging device disclosed in this invention for electric vehicle, the booster 3 includes independent LC resonant tanks, and it enables to the two ends of booster to have good sinusoidal voltage waveform.This transmitting coil front end for avoiding transmitter 2 makes the situation of the voltage wave shape distortion at transmitting coil two ends due to the effect of circuit structure and magnetic coupling, and the system of thus avoid can not resonate and limit the situation of energy transmission range well.
Preferably, in the wireless charging device disclosed in this invention for electric vehicle, the LC resonant tanks include booster coil and booster electric capacity, and cause the electric current in resonance in the booster coil to be more than the electric current in the transmitting coil of transmitter 2.This can increase the transmission range of wireless energy.
Preferably, wireless charging device disclosed in this invention for electric vehicle further comprises booster positioner 4, it receives the charge data that the vehicle charged wirelessly feeds back during Vehicular charging, and the position of booster 3 is adjusted based on the charge data, so that the booster coil of booster 3 reaches optimum resonance.Therefore, only when booster 3 is in a certain ad-hoc location, the voltage of the receiver in vehicle can just reach peak value, and and then booster coil can be only achieved resonance.
Preferably, the wireless charging device disclosed in this invention for electric vehicle can support multiple vehicles to charge simultaneously.
Therefore, the wireless charging device disclosed in this invention for electric vehicle has following advantages:As a result of high frequency electric source driver element and booster, therefore wireless charging can be carried out to the electrokinetic cell of vehicle in bigger coverage, and support multiple vehicles to charge simultaneously.
Fig. 2 is the flow chart for the wireless charging method for being used for electric vehicle according to an embodiment of the invention.As shown in Fig. 2 the wireless charging method disclosed in this invention for electric vehicle comprises the following steps:(A1)Alternating current is inputted to the High Level AC Voltage for being converted into high frequency;(A2)The High Level AC Voltage of the high frequency is converted into the magnetic field of conversion by transmitter;(A3)The magnetic field of the conversion is strengthened by booster and is converted into the electric current for being charged to the electrokinetic cell in the vehicle to enable the receiver in vehicle to receive the magnetic field of the enhanced conversion.
Preferably, in the wireless charging method disclosed in this invention for electric vehicle, the step(A1)Including:Alternating current is inputted to the High Level AC Voltage for being converted into high frequency by way of rectifying and wave-filtering and high-frequency inversion.
Preferably, in the wireless charging method disclosed in this invention for electric vehicle, the transmitter includes transmitting coil, and the transmitting coil has high intrinsic frequency and big diameter, so that the transmission range of the High Level AC Voltage of the high frequency is more than predetermined threshold value(Exemplary, the predetermined threshold value is in the range of several meters to tens meters).
Preferably, in the wireless charging method disclosed in this invention for electric vehicle, the booster includes independent LC resonant tanks, and it enables to the two ends of booster to have good sinusoidal voltage waveform.
Preferably, in the wireless charging method disclosed in this invention for electric vehicle, the LC resonant tanks include booster coil and booster electric capacity, and cause the electric current in resonance in the booster coil to be more than the electric current in the transmitting coil of transmitter.
Preferably, the wireless charging method disclosed in this invention for electric vehicle further comprises:The charge data of the vehicle charged during based on Vehicular charging adjusts the position of the booster, so that the booster coil of the booster reaches optimum resonance.
Preferably, the wireless charging method disclosed in this invention for electric vehicle can support multiple vehicles to charge simultaneously.
Therefore, the wireless charging method disclosed in this invention for electric vehicle has following advantages:Wireless charging can be carried out to the electrokinetic cell of vehicle in bigger coverage, and support multiple vehicles to charge simultaneously.
Although the present invention is described by above-mentioned preferred embodiment, its way of realization is not limited to above-mentioned embodiment.It should be realized that:In the case where not departing from spirit and scope of the present invention, those skilled in the art can make different change and modifications to the present invention.

Claims (8)

1. a kind of wireless charging device for electric vehicle, the wireless charging device for electric vehicle includes:
Alternating current is inputted and is converted into the High Level AC Voltage of high frequency by high frequency electric source driver element, the high frequency electric source driver element, and by the high-voltage alternating electrical transmission of the high frequency to transmitter;
The High Level AC Voltage of the high frequency is converted into the magnetic field of conversion by transmitter, the transmitter, and the magnetic field of the conversion is passed through booster;
Booster, the booster strengthens the magnetic field of the conversion and is converted into the electric current for being charged to the electrokinetic cell in the vehicle to enable the receiver in vehicle to receive the magnetic field of the enhanced conversion.
2. the wireless charging device according to claim 1 for electric vehicle, it is characterised in that the high frequency electric source driver element inputs alternating current by way of rectifying and wave-filtering and high-frequency inversion the High Level AC Voltage for being converted into high frequency.
3. the wireless charging device according to claim 2 for electric vehicle, it is characterized in that, the transmitter includes transmitting coil, and the transmitting coil has high intrinsic frequency and big diameter, so that the transmission range of the High Level AC Voltage of the high frequency is more than predetermined threshold value.
4. the wireless charging device according to claim 3 for electric vehicle, it is characterised in that the booster includes independent LC resonant tanks, and it enables to the two ends of booster to have good sinusoidal voltage waveform.
5. the wireless charging device according to claim 4 for electric vehicle, it is characterized in that, the LC resonant tanks include booster coil and booster electric capacity, and cause the electric current in resonance in the booster coil to be more than the electric current in the transmitting coil of transmitter.
6. the wireless charging device according to claim 5 for electric vehicle, it is characterized in that, described device further comprises booster positioner, it receives the charge data that the vehicle charged wirelessly feeds back during Vehicular charging, and the position of booster is adjusted based on the charge data, so that the booster coil of booster reaches optimum resonance.
7. the wireless charging device according to claim 6 for electric vehicle, it is characterised in that described device can support multiple vehicles to charge simultaneously.
8. a kind of wireless charging method for electric vehicle, the wireless charging method for electric vehicle comprises the following steps:
(A1)Alternating current is inputted to the High Level AC Voltage for being converted into high frequency;
(A2)The High Level AC Voltage of the high frequency is converted into the magnetic field of conversion by transmitter;
(A3)The magnetic field of the conversion is strengthened by booster and is converted into the electric current for being charged to the electrokinetic cell in the vehicle to enable the receiver in vehicle to receive the magnetic field of the enhanced conversion.
CN201610170876.XA 2016-03-24 2016-03-24 Wireless charging device and method for electric vehicle Pending CN107231031A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610170876.XA CN107231031A (en) 2016-03-24 2016-03-24 Wireless charging device and method for electric vehicle

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Application Number Priority Date Filing Date Title
CN201610170876.XA CN107231031A (en) 2016-03-24 2016-03-24 Wireless charging device and method for electric vehicle

Publications (1)

Publication Number Publication Date
CN107231031A true CN107231031A (en) 2017-10-03

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101673962A (en) * 2009-10-14 2010-03-17 奇瑞汽车股份有限公司 Wireless charging system for electric automobile
CN103078381A (en) * 2013-01-27 2013-05-01 中国科学院电工研究所 Wireless charging device for electric vehicle and output control method thereof
CN103236567A (en) * 2013-04-18 2013-08-07 东莞宇龙通信科技有限公司 Wireless charging method, device and system
CN103944243A (en) * 2014-02-27 2014-07-23 北京航空航天大学 Inductive non-contact charging device with precise centering function for electric automobile
CN204190426U (en) * 2014-09-26 2015-03-04 国家电网公司 A kind of positioner for the contactless charging of electric automobile
WO2016037727A1 (en) * 2014-09-08 2016-03-17 Robert Bosch Gmbh Method and system for protecting a contactless charging/discharging process of a battery-operated object, in particular an electric vehicle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101673962A (en) * 2009-10-14 2010-03-17 奇瑞汽车股份有限公司 Wireless charging system for electric automobile
CN103078381A (en) * 2013-01-27 2013-05-01 中国科学院电工研究所 Wireless charging device for electric vehicle and output control method thereof
CN103236567A (en) * 2013-04-18 2013-08-07 东莞宇龙通信科技有限公司 Wireless charging method, device and system
CN103944243A (en) * 2014-02-27 2014-07-23 北京航空航天大学 Inductive non-contact charging device with precise centering function for electric automobile
WO2016037727A1 (en) * 2014-09-08 2016-03-17 Robert Bosch Gmbh Method and system for protecting a contactless charging/discharging process of a battery-operated object, in particular an electric vehicle
CN204190426U (en) * 2014-09-26 2015-03-04 国家电网公司 A kind of positioner for the contactless charging of electric automobile

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