CN107394832A - Electric automobile wireless charging is to Barebone, alignment methods and vehicle end device - Google Patents

Electric automobile wireless charging is to Barebone, alignment methods and vehicle end device Download PDF

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Publication number
CN107394832A
CN107394832A CN201610321665.1A CN201610321665A CN107394832A CN 107394832 A CN107394832 A CN 107394832A CN 201610321665 A CN201610321665 A CN 201610321665A CN 107394832 A CN107394832 A CN 107394832A
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CN
China
Prior art keywords
signal
unit
electric automobile
charging
barebone
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
CN201610321665.1A
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Chinese (zh)
Inventor
林卫夫
陈胜奇
陈珊
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.)
SHENZHEN TTK TECHNOLOGY Co Ltd
Original Assignee
SHENZHEN TTK TECHNOLOGY 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 SHENZHEN TTK TECHNOLOGY Co Ltd filed Critical SHENZHEN TTK TECHNOLOGY Co Ltd
Priority to CN201610321665.1A priority Critical patent/CN107394832A/en
Publication of CN107394832A publication Critical patent/CN107394832A/en
Pending legal-status Critical Current

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Classifications

    • H02J7/025
    • 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
    • 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
    • B60L53/30Constructional details of charging stations
    • B60L53/35Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
    • B60L53/36Means for automatic or assisted adjustment of the relative position of charging devices and vehicles by positioning the vehicle
    • 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
    • B60L53/30Constructional details of charging stations
    • B60L53/35Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
    • B60L53/38Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by inductive energy transfer
    • B60L53/39Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by inductive energy transfer with position-responsive activation of primary coils
    • 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
    • Y02T90/12Electric charging stations
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The present invention relates to wireless charging technical field, more particularly to a kind of electric automobile wireless charging is to Barebone, alignment methods and vehicle end device.For the electric automobile wireless charging to Barebone, it comprises at least non-vehicle end device and vehicle end device;The non-vehicle end device includes:Signal transmitter unit and driver element, the driver element are used to export detection pulse signal to the signal transmitter unit;The vehicle end device includes:The charging take-up reel and signal receiving unit being sequentially connected, CPU and Tip element, the signal receiving unit are located at around the charging take-up reel, and it includes n receiving coil, and the n is the integer not less than 2.Electric automobile wireless charging alignment system and method provided by the invention are easy to the alignment precision that charging transmitting coil and the receiving coil that charges are improved when parking for assisting driver in electric automobile.

Description

Electric automobile wireless charging is to Barebone, alignment methods and vehicle end device
Technical field
The present invention relates to wireless charging technical field, more particularly to a kind of electric automobile wireless charging is to Barebone, alignment Method and vehicle end device.
Background technology
Electric automobile is generally believed with its energy-conservation, no pollution, efficient advantage by countries in the world scientist and industrial quarters It is the 21st century important vehicles.Wherein, electric automobile charging station and charging network are electric automobile scale and production The important infrastructure of industryization development.
Electric automobile is charged by the way of wireless charging, the popularization to electric automobile is significant.Should Mode is needed to be provided with charging transmitting coil at the non-vehicle end of electric automobile, and charging take-up is provided with the vehicle end of electric automobile Circle.The charging transmitting coil at non-vehicle end is generally located on and can carried out on the fixation parking stall of electric automobile wireless charging, vehicle The charging receiving coil at end is generally located on below the chassis of electric automobile, and the charging transmitting coil is aligned with charging receiving coil Quality, be directly connected to the efficiency of electric automobile wireless charging, therefore, solve charging electric vehicle transmitting coil and charging The alignment issues of take-up circle, it is one of key factor for carrying out wireless charging type electric automobile popularization and application.
The content of the invention
In view of this, the present invention, which provides, a kind of is advantageous to improve electric automobile receiving coil and transmitting coil alignment precision Wireless charging is to Barebone, alignment methods and vehicle end device.
The present invention provide electric automobile wireless charging to Barebone comprise at least positioned at ground non-vehicle end device and Vehicle end device on electric automobile;The non-vehicle end device includes:Signal transmitter unit and driver element, it is described Driver element is used to export detection pulse signal to the signal transmitter unit;The vehicle end device includes:Charging take-up The disk and signal receiving unit being sequentially connected, CPU and Tip element, the signal receiving unit are located at institute State around charging take-up reel, it includes n receiving coil, and the n is the integer not less than 2, and the receiving coil is used for Receive the signal of the signal transmitter unit transmitting and export to the CPU, the CPU is used to adopt Collect the parameter of the signal receiving unit and parameter is handled, and the Tip element is controlled to described according to result Prompted the position of electric automobile.
Electric automobile wireless charging provided by the invention is in Barebone, the electric automobile includes the charging on car Launch drum, the charging transmitting drum is used as the signal transmitter unit, and it is defeated that the parameter includes each receiving coil The magnitude of voltage gone out.
Electric automobile wireless charging provided by the invention is in Barebone, the driver element is additionally operable to export charging pulse Signal gives the signal transmitter unit, and the pulse that the pulse width of the charge pulse signal is more than the detection pulse signal is wide Degree.
Electric automobile wireless charging provided by the invention is in Barebone, the Tip element includes vision signal and list occurs Member and display screen, the video signal generating unit be connected with the output end of the CPU, the display screen and The output end connection of the video signal generating unit.
Electric automobile wireless charging provided by the invention is in Barebone, having pre-set image and institute on the display screen The virtual image for the sign charging transmitting drum position that video signal generating unit exports is stated, the virtual image is preset with described The alignment of image is characterized as the alignment of the charging transmitting drum and the charging take-up reel.
Electric automobile wireless charging provided by the invention is in Barebone, it is single that the vehicle end device also includes signal amplification Member, the compression limiter connect the output end of the signal receiving unit, and the signal amplification unit connects the signal and received The output end of unit, the CPU connect the output end of the signal amplification unit.
Electric automobile wireless charging provided by the invention in Barebone, the vehicle end device also include compression limiter with And rectification unit, the compression limiter connect the output end of the signal receiving unit, described in the signal amplification unit connection The output end of compression limiter, the rectification unit connect the output end of the signal amplification unit, and the CPU connects Connect the output end of the rectification unit.
A kind of alignment methods present invention also offers electric automobile wireless charging to Barebone, the electric automobile is wireless Charging includes vehicle end device and non-vehicle end device to Barebone, and the alignment methods comprise at least following steps:Output inspection Survey pulse signal and launch the detection pulse signal;Pulse signal is detected described in wireless receiving;The signal is entered Row collection and processing;The position of the electric automobile is prompted according to result.
Electric automobile wireless charging provided by the invention is in the alignment methods of Barebone, the prompting mode carries for video Show or voice message.
Present invention also offers a kind of vehicle end device, and it includes charging take-up reel and the signal being sequentially connected receives Unit, CPU and Tip element, the signal receiving unit are located at around the charging take-up reel, and it is wrapped N receiving coil is included, the n is the integer not less than 2, and the receiving coil is used to receive the signal transmitter unit transmitting Signal is simultaneously exported to the CPU, the CPU be used for the parameter for gathering the signal receiving unit and Parameter is handled, and controls the Tip element to prompt the position of the electric automobile according to result.
In vehicle end device provided by the invention, the electric automobile includes the charging transmitting drum on car, described Charging transmitting drum is used as the signal transmitter unit, and the parameter includes the magnitude of voltage of each receiving coil output.
In electric automobile wireless charging alignment system and method provided by the invention, due to being provided with letter at non-vehicle end Number transmitter unit, the detection pulse signal that the signal transmitter unit receives driver element are simultaneously launched, charged in vehicle end Receiving and be provided with signal receiving unit around drum, it includes multiple receiving coils, according to electromagnetic induction principle, each receiving coil Certain pulse voltage can be sensed, due to the peak value and its distance with launching drum of the pulse voltage that each receiving coil obtains Negative correlation, therefore, when the peak value for the pulse voltage that each receiving coil obtains is equal, you can assert each receiving coil and emission lines The distance of disk is equal, and now the CPU of vehicle end can control Tip element to make charging take-up reel and be sent out with charging The prompting (visual prompts or voice message) of ray disc alignment.Therefore, electric automobile wireless charging alignment provided by the invention System is easy to assist driver to improve charging transmitting coil and the receiving coil that charges when parking in wireless charging type electric automobile Alignment precision.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is that the electric automobile wireless charging of a better embodiment provided by the invention shows the structure of Barebone 100 It is intended to;
Fig. 2 is that the detection pulse signal of the different pulse widths of driver element output and charge pulse signal waveform show It is intended to;
Fig. 3 is the structural representation of the vehicle end device 20 of another better embodiment provided by the invention;
Fig. 4 is a kind of concrete structure schematic diagram of better embodiment of vehicle end device 20 shown in Fig. 3;
Fig. 5 is the charging take-up reel of a better embodiment and the location diagram of signal receiving unit;
Fig. 6 is that the principle for the electric automobile wireless charging alignment system alignment that the application provides illustrates schematic diagram;
Fig. 7 is that a kind of scene when the charging take-up reel 208 is not aligned with the charging transmitting drum 102 is illustrated Figure;
Fig. 8 is that video display interface when charging take-up reel 208 is not aligned with the charging transmitting drum 102 is illustrated Figure;
Fig. 9 is a kind of schematic diagram of a scenario when the charging take-up reel 208 is aligned with the charging transmitting drum 102;
Figure 10 is another better embodiment when charging take-up reel 208 is not aligned with the charging transmitting drum 102 Video display interface schematic diagram;
Figure 11 is alignment methods of the electric automobile wireless charging to Barebone of a better embodiment provided by the invention Schematic flow sheet.
Embodiment
The electric automobile wireless charging with charge function provided to illustrate the invention is to Barebone, below in conjunction with specification Accompanying drawing and explanatory note are described in detail.
In the description of the invention, it is necessary to which explanation, unless otherwise clearly defined and limited, term " connected ", " connects Connect " it should be interpreted broadly, can be the electric connection of two element internals;Can be joined directly together, intermediary can also be passed through It is indirectly connected, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be. In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance or implicit Indicate the quantity of indicated technical characteristic.Thus, " first " is defined, the feature of " second " can be expressed or impliedly wrap Include one or more this feature.
As shown in figure 1, its for a better embodiment provided by the invention electric automobile wireless charging to Barebone 100 Overall structure diagram, it include positioned at ground non-vehicle end device 10 and the vehicle end device on electric automobile 20, the non-vehicle end device 10 is the wireless power of vehicle end device 20, and the electric automobile wireless charging is to Barebone 100 have the function of prompting the charging transmitting drum of electric automobile whether to be aligned with charging take-up reel to driver, so that driver Electric automobile is parked in correct position in docking process.
The non-vehicle end device 10 includes:Signal transmitter unit 102 and driver element 101, the signal transmitting are single Member 102 is connected with driver element 101, and in present embodiment, the charging transmitting drum is used as the signal transmitter unit 102, In other embodiments, the signal transmitter unit 102 can also be other letters around the charging transmitting drum Number emitter.
The driver element is used to export detection pulse signal and charge pulse signal to the signal transmitter unit, described Detection pulse signal is used for detecting whether the charging take-up reel is aligned with charging transmitting drum;The charge pulse signal is used Electric power is radioed into the charging take-up reel in launching drum for the charging, the pulse of the charge pulse signal is wide Degree is more than the pulse width of the detection pulse signal.Such as shown in Fig. 2 it is the different pulses of driver element output The detection pulse signal and charge pulse signal waveform diagram of width.
The vehicle end device 20 includes:The signal receiving unit 201 that is sequentially connected, CPU 203 and carry Show unit, in present embodiment, the Tip element includes video signal generating unit 204 and display screen 205;The signal Detection pulse signal that signal transmitter unit 102 described in the wireless receiving of receiving unit 201 is sent simultaneously is exported to the central processing Unit 203, the signal receiving unit 201 are located at around the charging take-up reel, and it includes n receiving coil, the n For the integer not less than 2;The CPU 203 is used for the parameter for gathering the signal receiving unit and parameter is carried out Processing, and control the Tip element to carry out visual prompts to the position of the electric automobile according to result.The parameter Include the magnitude of voltage of each receiving coil output.The video signal generating unit 204 and the CPU 203 Output end connection, the display screen 205 is connected with the output end of the video signal generating unit 204.The display screen 205 For that can be original screen for navigating or moving backward in the prior art, thereon with pre-set image and the vision signal The virtual image of the sign charging transmitting drum position of generating unit output, the alignment of the virtual image and the pre-set image It is characterized as the alignment of the charging transmitting drum and the charging take-up reel.In other embodiments, the Tip element It can also be voice alerting unit.Such as make the voice letter of the meaning such as sign " please be moved backward toward rear right ", " please stop port forward " Cease and prompted to driver.
As shown in figure 3, its structural representation for the vehicle end device 20 of another better embodiment provided by the invention, It includes signal receiving unit 301, voltage-limiting protection unit 306, signal amplification unit 302, rectification unit 307, central processing list Member 303, video signal generating unit 304 and display screen 305.The voltage-limiting protection unit 306 connects the signal and receives list The output end of member 301, the signal amplification unit 302 connect the output end of the voltage-limiting protection unit 306, the rectification unit The output end of the 307 connection signal amplification units 302, the CPU 303 connect the defeated of the rectification unit 307 Go out end.The voltage-limiting protection unit 306 is used to, when charging transmitting drum charges normal, to limit higher voltage and enter Signal amplification circuit.The signal amplification unit 302 is used to the detection pulse signal being amplified;The rectification unit 307 are used to export direct current signal to the CPU 303.In another embodiment, pressure limiting can also not be had to protect Protect any of unit 306, signal amplification unit 302 and rectification unit 307, two or three.
As shown in figure 4, its concrete structure schematic diagram for a kind of better embodiment of vehicle end device 20 shown in Fig. 3. In present embodiment, the n is 4, i.e., described signal receiving unit 301 includes 4 receiving coils:First receiving coil 301a, Second receiving coil 301b, the 3rd receiving coil 301c and the 4th receiving coil 301d;The compression limiter 306 includes first Pressure limiting circuit 306a, the second pressure limiting circuit 306b, the 3rd pressure limiting circuit 306c and the 4th pressure limiting circuit 306d;The signal is put Big unit 302 include the first signal amplification circuit 302a, secondary signal amplifying circuit 302b, the 3rd signal amplification circuit 302c with And the 4th signal amplification circuit 302d;The rectification unit 307 include the first rectification circuit 307a, the second rectification circuit 307b, 3rd rectification circuit 307c and the 4th rectification circuit 307d;The first receiving coil 301a, the first pressure limiting circuit 306a, One signal amplification circuit 302a, the first rectification circuit 307a are sequentially connected electrically;The second receiving coil 301b, the second pressure limiting electricity Road 306b, secondary signal amplifying circuit 302b, the second rectification circuit 307b are sequentially connected electrically;The 3rd receiving coil 301c, 3rd pressure limiting circuit 306c, the 3rd signal amplification circuit 302c, the 3rd rectification circuit 307c are sequentially connected electrically;Described 4th receives Coil 301d, the 4th pressure limiting circuit 306d, the 4th signal amplification circuit 302d, the 4th rectification circuit 307d are sequentially connected electrically;Institute State the defeated of the first rectification circuit 307a, the second rectification circuit 307b, the 3rd rectification circuit 307c and the 4th rectification circuit 307d Go out end and connect the CPU respectively.
As shown in figure 5, it is the charging take-up reel of a better embodiment and the location diagram of signal receiving unit, When the charging transmitting drum 102 is circular (can also be square or other shapes), using electric automobile astern direction as A side To, the first receiving coil 301a, the second receiving coil 301b, the 3rd receiving coil 301c and the 4th receiving coil 301d position The relation of putting is preferably:The first receiving coil 301a, the second receiving coil 301b, the 3rd receiving coil 301c and the 4th connect Take-up circle 304d receives line on the Central Symmetry of charging take-up reel 102, the second receiving coil 301b and the 4th The connecting line enclosed between 301d is parallel to the A directions, between the first receiving coil 301a, the 3rd receiving coil 301c Line is perpendicular to the A directions.
As shown in fig. 6, it is the principle explanation signal of the electric automobile wireless charging alignment system alignment of the application offer Figure.During parking before charging electric vehicle, there is detection pulse signal, now, electric automobile in charging transmitting drum On charging receiving coil voltage it is very low, can be considered not charged state, signal receiving coil in the presence of electromagnetic induction, production Raw voltage, the voltage pass through pressure limiting circuit, signal amplification circuit and rectification unit, are applied by AC conversion for direct current On the central processing unit.A signal transmitting coil, the signal detection principle of other signal transmitting coils are only depicted in Fig. 6 Similarly.Present embodiment sets four signal transmitting coils, and according to electromagnetic induction principle, each receiving coil can sense certain Pulse voltage, due to each receiving coil obtain pulse voltage peak value and its with charging transmitting drum distance negative correlation, because This, when the peak value for the pulse voltage that each receiving coil obtains is equal, you can assert each receiving coil with launching the distance of drum Equal, i.e., charging transmitting drum is aligned with charging take-up reel, the voltage phase that now CPU of vehicle end detects Deng Tip element can be controlled to make charging take-up reel and the prompting that is aligned of charging transmitting drum, video is prompted for when described During prompting, data signal picture signal will be converted on the display screen accordingly.
As shown in fig. 7, it is the charging take-up reel 208 does not launch one kind when drum 102 is aligned with the charging Scene graph, it is described in the space that each receiving coil, charging take-up reel 208 and charging transmitting drum 102 are formed in figure Charging take-up reel 208 launches the right front of drum 102 positioned at the charging, i.e., described first receiving coil 301a, second connect The distance d1 of take-up circle 301b, the 3rd receiving coil 301c and the 4th receiving coil 301d and the charging transmitting drum 102, D2, d3, d4 relation is:D3 > d2 > d1 > d4, now, the 3rd receiving coil 301c, the second receiving coil 301b, first connect The size for the pulse voltage that take-up circle 301a, the 4th receiving coil 301d are obtained is sequentially reduced, therefore, the CPU 303 will be converted into this pulse voltage signal data signal, and the video generating unit 304 converts by the data signal For vision signal, video when charging take-up reel 208 as shown in Figure 8 is not aligned with the charging transmitting drum 102 is formed Display interface schematic diagram.There is the sign charging hair that pre-set image 10 and video signal generating unit export on display screen 305 The virtual image 20 of ray disc position 102, in present embodiment, the pre-set image 10 is cross hairs, cross hairs it is most central Position characterizes the middle position of charging transmitting drum, and the virtual image 20 is circle, and it characterizes charging take-up reel, the void The alignment for intending image 20 and the pre-set image 10 is characterized as the charging transmitting drum 102 and the charging take-up reel 208 Alignment.When electric automobile is in moving process, because the position of each receiving coil and charging transmitting drum is changing always, pass through The virtual image 20 for crossing video signal generating unit processing also changes in dynamic.When the CPU detects each arteries and veins It is equal to rush voltage, as shown in figure 9, during i.e. d1=d2=d3=d4, the most central position of cross hairs in the virtual image 20 just figure Put, can now assert that charging transmitting drum is aligned with charging take-up reel.
In another embodiment, as shown in Figure 10, on the display screen not only can have pre-set image 10 with And the virtual image 20 of the sign charging transmitting drum position 102 of video signal generating unit output, reversing shadow can also be shown As 30, i.e. pre-set image 10 and the general image of virtual image combination is superimposed upon in reverse image 30 of the prior art.
As shown in figure 11, it is the electric automobile wireless charging of a better embodiment provided by the invention to Barebone The schematic flow sheet of alignment methods, the alignment methods comprise at least following steps:
Step S01:Output detection pulse signal simultaneously launches the detection pulse signal;
Step S02:Pulse signal is detected described in wireless receiving;
Step S03:The signal is acquired and handled;
Step S04:The position of the electric automobile is prompted according to result.
The step S01 is completed by the non-vehicle end device, and step S02, S03 and S04 are by the vehicle End device is completed.The prompting mode is visual prompts or voice message.
In electric automobile wireless charging alignment system and method provided by the invention, due to being provided with letter at non-vehicle end Number transmitter unit, the detection pulse signal that the signal transmitter unit receives driver element are simultaneously launched, charged in vehicle end Receiving and be provided with signal receiving unit around drum, it includes multiple receiving coils, according to electromagnetic induction principle, each receiving coil Certain pulse voltage can be sensed, due to the peak value and its distance with launching drum of the pulse voltage that each receiving coil obtains Negative correlation, therefore, when the peak value for the pulse voltage that each receiving coil obtains is equal, you can assert each receiving coil and emission lines The distance of disk is equal, and now the CPU of vehicle end can control Tip element to make charging take-up reel and be sent out with charging The prompting (visual prompts or voice message) of ray disc alignment.Therefore, electric automobile wireless charging alignment provided by the invention System is easy to assist driver to improve charging transmitting coil and the receiving coil that charges when parking in wireless charging type electric automobile Alignment precision.
Above for electric automobile wireless charging provided by the invention to Barebone, alignment methods and vehicle end device compared with Good embodiment, the limitation to rights protection scope of the present invention can not be interpreted as, those skilled in the art should know, On the premise of not departing from present inventive concept, a variety of improvement or replacement can be also done, all such improvement or replacement all should be at these In the rights protection scope of invention, i.e., the scope of the present invention should be defined by claim.

Claims (12)

  1. To Barebone, 1. it is comprised at least positioned at the non-vehicle end device on ground and positioned at electricity a kind of electric automobile wireless charging Vehicle end device on electrical automobile;
    The non-vehicle end device includes:Signal transmitter unit and driver element, the driver element are used to export detection arteries and veins Signal is rushed to the signal transmitter unit;
    The vehicle end device includes:Charging take-up reel and the signal receiving unit being sequentially connected, CPU with And Tip element, the signal receiving unit are located at around the charging take-up reel, it includes n receiving coil, the n For the integer not less than 2, the receiving coil is used to receiving the signal of the signal transmitter unit transmitting and exported in described Central Processing Unit, the CPU are used to gather the parameter of the signal receiving unit and parameter are handled, and The Tip element is controlled to prompt the position of the electric automobile according to result.
  2. 2. electric automobile wireless charging as claimed in claim 1 is to Barebone, it is characterised in that:The electric automobile includes position Launch drum in the charging on car, the charging transmitting drum is used as the signal transmitter unit, and the parameter includes each institute State the magnitude of voltage of receiving coil output.
  3. 3. electric automobile wireless charging as claimed in claim 2 is to Barebone, it is characterised in that:The driver element is additionally operable to Export charge pulse signal and be more than the detection pulse to the signal transmitter unit, the pulse width of the charge pulse signal The pulse width of signal.
  4. 4. electric automobile wireless charging as claimed in claim 2 is to Barebone, it is characterised in that:The Tip element includes regarding Frequency signal generating unit and display screen, the video signal generating unit are connected with the output end of the CPU, The display screen is connected with the output end of the video signal generating unit.
  5. 5. electric automobile wireless charging as claimed in claim 4 is to Barebone, it is characterised in that:Have on the display screen pre- If the virtual image of the sign charging transmitting drum position of image and video signal generating unit output, the virtual graph Picture is directed at the alignment for being characterized as the charging and launching drum and the charging take-up reel with the pre-set image.
  6. 6. electric automobile wireless charging as claimed in claim 4 is to Barebone, it is characterised in that:The vehicle end device also wraps Signal amplification unit is included, the compression limiter connects the output end of the signal receiving unit, the signal amplification unit connection The output end of the signal receiving unit, the CPU connect the output end of the signal amplification unit.
  7. 7. electric automobile wireless charging as claimed in claim 6 is to Barebone, it is characterised in that:The vehicle end device also wraps Compression limiter and rectification unit are included, the compression limiter connects the output end of the signal receiving unit, the signal amplification Unit connects the output end of the compression limiter, and the rectification unit connects the output end of the signal amplification unit, in described Central Processing Unit connects the output end of the rectification unit.
  8. 8. electric automobile wireless charging as claimed in claim 7 is to Barebone, it is characterised in that:The n is 4, the signal Receiving unit includes the first receiving coil, the second receiving coil, the 3rd receiving coil and the 4th receiving coil;The pressure limiting list Member includes the first pressure limiting circuit, the second pressure limiting circuit, the 3rd pressure limiting circuit and the 4th pressure limiting circuit;The signal amplification unit Including the first signal amplification circuit, secondary signal amplifying circuit, the 3rd signal amplification circuit and the 4th signal amplification circuit;Institute Stating rectification unit includes the first rectification circuit, the second rectification circuit, the 3rd rectification circuit and the 4th rectification circuit;Described first Receiving coil, the first pressure limiting circuit, the first signal amplification circuit, the first rectification circuit are sequentially connected electrically;Described second receives line Circle, the second pressure limiting circuit, secondary signal amplifying circuit, the second rectification circuit are sequentially connected electrically;3rd receiving coil, the 3rd Pressure limiting circuit, the 3rd signal amplification circuit, the 3rd rectification circuit are sequentially connected electrically;4th receiving coil, the 4th pressure limiting electricity Road, the 4th signal amplification circuit, the 4th rectification circuit are sequentially connected electrically;First rectification circuit, the second rectification circuit, the 3rd The output end of rectification circuit and the 4th rectification circuit connects the CPU respectively.
  9. 9. a kind of electric automobile wireless charging includes to the alignment methods of Barebone, the electric automobile wireless charging to Barebone Vehicle end device and non-vehicle end device, the alignment methods comprise at least following steps:
    Output detection pulse signal simultaneously launches the detection pulse signal;
    Pulse signal is detected described in wireless receiving;
    The signal is acquired and handled;
    The position of the electric automobile is prompted according to result.
  10. 10. electric automobile wireless charging as claimed in claim 9 is to the alignment methods of Barebone, it is characterised in that described to carry It is visual prompts or voice message to show mode.
  11. 11. a kind of vehicle end device, it includes charging take-up reel and the signal receiving unit being sequentially connected, central processing Unit and Tip element, the signal receiving unit are located at around the charging take-up reel, and it includes n reception line Circle, the n are the integer not less than 2, and the receiving coil is used for signal and the output for receiving the signal transmitter unit transmitting To the CPU, the CPU is used for the parameter for gathering the signal receiving unit and parameter is carried out Processing, and control the Tip element to prompt the position of the electric automobile according to result.
  12. 12. vehicle end device as claimed in claim 11, it is characterised in that:The electric automobile includes the charging on car Launch drum, the charging transmitting drum is used as the signal transmitter unit, and it is defeated that the parameter includes each receiving coil The magnitude of voltage gone out.
CN201610321665.1A 2016-05-16 2016-05-16 Electric automobile wireless charging is to Barebone, alignment methods and vehicle end device Pending CN107394832A (en)

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CN110645883A (en) * 2019-09-27 2020-01-03 东南大学 Positioning method for four-detection-coil wireless charging positioning system
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CN108151635A (en) * 2018-01-04 2018-06-12 无锡市瀚为科技有限公司 A kind of automobile wireless charge position detection device and its detection method
CN108312882B (en) * 2018-03-14 2020-11-17 湖南超能机器人技术有限公司 Signal recording and charging pile position determination method for robot charging alignment technology
CN108312882A (en) * 2018-03-14 2018-07-24 湖南超能机器人技术有限公司 The signal record and charging pile position decision method of robot charging technique of alignment
CN108725239A (en) * 2018-05-03 2018-11-02 中国第汽车股份有限公司 A kind of alignment device and its method for electric vehicle wireless charging
CN108773283A (en) * 2018-05-31 2018-11-09 深圳市中科智诚科技有限公司 A kind of safe and efficient new-energy automobile that charges
CN111038295B (en) * 2018-10-11 2021-04-13 广州小鹏汽车科技有限公司 Alignment control method and device for wireless charging coil and electric automobile
CN111038295A (en) * 2018-10-11 2020-04-21 广州小鹏汽车科技有限公司 Alignment control method and device for wireless charging coil and electric automobile
CN109435717A (en) * 2018-12-17 2019-03-08 北华大学 A kind of electric car wireless charging positioning system
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CN110645883A (en) * 2019-09-27 2020-01-03 东南大学 Positioning method for four-detection-coil wireless charging positioning system
CN113787924A (en) * 2021-10-26 2021-12-14 国网江苏省电力有限公司苏州供电分公司 Magnetic coupling mechanism position sensing method and system for wireless charging system of electric vehicle
CN113910930A (en) * 2021-10-28 2022-01-11 东风汽车有限公司东风日产乘用车公司 Electric vehicle wireless charging guiding and positioning method, electronic equipment and storage medium
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CN115453636A (en) * 2022-09-06 2022-12-09 广州优途汽车用品有限公司 Portable remote wireless charger detection device and detection method

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Application publication date: 20171124