AU2020101785A4 - Apparatus and method for obtaining location of wireless charging receiving coil based on mesh shape - Google Patents
Apparatus and method for obtaining location of wireless charging receiving coil based on mesh shape Download PDFInfo
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- AU2020101785A4 AU2020101785A4 AU2020101785A AU2020101785A AU2020101785A4 AU 2020101785 A4 AU2020101785 A4 AU 2020101785A4 AU 2020101785 A AU2020101785 A AU 2020101785A AU 2020101785 A AU2020101785 A AU 2020101785A AU 2020101785 A4 AU2020101785 A4 AU 2020101785A4
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/12—Inductive energy transfer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
- B60L53/38—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by inductive energy transfer
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention discloses an apparatus and a method for obtaining a location of a
wireless charging receiving coil based on a mesh shape. The apparatus includes a
mesh-shaped unit 1, a receiving plate module 2, a data processing unit 3, and a control
5 display unit 4, where the mesh-shaped unit 1, the receiving plate module 2, and the data
processing unit 3 each communicate with the control display unit 4, and the receiving plate
module 2 is mounted on a chassis of a wireless charging vehicle. A structure of the
apparatus is simple, and the apparatus implements automatic information obtaining in an
effective charging range by using the telescoping probe ingeniously, rapidly transmits, after
10 obtaining a location of a wireless charging receiving coil, the location to the data
processing unit, and displays the location in the control display unit 4. In addition, in a
usage procedure, the apparatus of the present invention is not easily affected by an
environment, and may work more stably in all weathers.
FIG. 1
0 o
111
1
(a)
FIG. 2A
1/5
Description
FIG. 1
1 111
o
(a)
FIG. 2A
1/5
Technical Field
The present invention relates to the field of wireless charging technologies, and specifically, to an apparatus and a method for obtaining a location of a wireless charging receiving coil based on a mesh shape.
Related Art
As global energy becomes more deficient and a problem of environmental pollution becomes more severe, it is urgent to find clean and environmentally friendly energy. New energy can effectively resolve a problem of emission pollution of oil-fueled vehicles and alleviate a problem of global energy shortage, and therefore governments of countries gradually increase development and usage of the new energy. Electric vehicles are popular among people in countries because of an advantage of using the new energy and having less exhaust emission pollution. However, the new energy electric vehicles are prevented from a large-scale development because of reasons such as short endurance mileage, imperfect charging devices, relatively high battery prices, and excessively high repair and maintenance costs. In addition, for a plug-in electric vehicle, there is further a non-negligible problem, that is, charging safety. Based on this, some researchers begin to explore other electric vehicle charging manners. A wireless charging technology is applied to electric vehicle charging since then.
The wireless charging technology allows an electric vehicle to be connected to a power grid automatically without a wire or a cable through a wireless charging plate embedded in a road or a parking space, to be charged or discharged, is convenient and safe in use, and may effectively use vehicle battery capacity, reduce a vehicle weight, and increase vehicle endurance mileage. Currently, for a wireless charging solution of an electric vehicle, there are still unresolved problems such as how to accurately obtain a location of a wireless charging receiving coil in a wireless charging procedure. Therefore, research and development on a wireless charging platform which may automatically and accurately obtain location information of the electric vehicle is of great importance to engineering applications. For example, in a patent with a granted publication No. CN110091735A and a granted publication date August 6, 2019, an electric vehicle wireless charging system with an integrated auxiliary alignment function is disclosed. An LED self-luminous identifier on a transmitting coil is identified by using a camera integrated on a receiving coil, location information of the transmitting coil is obtained and sent to a host computer, relative locations of the transmitting coil and the receiving coil are displayed, and a driver is assisted in carrying out coil alignment. However, though alignment may be performed by displaying the relative locations of the transmitting coil and the receiving coil in the foregoing patent, the driver is still required to have a relatively good driving skill, and an error beyond an allowed error range still cannot be prevented when the transmitting coil and the receiving coil are aligned. In addition, it is inevitable that the camera integrated on the receiving coil is blocked by dirt, water, or the like when the vehicle moves, which reduces an identifying effect of the camera after a long time of use.
For another example, in a patent with a granted publication No. CN110370958A and a granted publication date October 25, 2019, a wireless charging alignment auxiliary detection system is disclosed. Voltage values of a left detection coil and a right detection coil that are mounted at the bottom of a vehicle are collected, and are compared with a threshold voltage, to obtain a difference. The difference is converted into location information, to implement transverse location correction. An electric vehicle is aligned in real time through a transverse correction unit and an auxiliary switch control unit. Though an electric vehicle may be aligned through this patent, a used sensor is easily subject to external disturbance in a usage procedure, and consequently usage robustness of the sensor is affected. In addition, voltage signals of the left and right detection coils are not stable in an actual detection procedure, and consequently correction accuracy thereof is reduced. Through either of the foregoing patents, alignment of wireless charging vehicles of a plurality of vehicle types cannot be implemented. In addition, apparatus mounting of the system is excessively complex, and is limited by an ambient environment and lighting intensity.
The present invention provides an apparatus and a method for obtaining a location of a wireless charging receiving coil based on a mesh shape. A structure of the apparatus is simple, and the apparatus implements automatic information obtaining in an effective charging range by using a telescoping probe ingeniously, rapidly transmits, after obtaining a location of a wireless charging receiving coil, the location to a data processing unit, and displays the location in a control display unit. In addition, in a usage procedure, the apparatus of the present invention is not easily affected by an environment, and may work more stably in all weathers.
An apparatus for obtaining a location of a wireless charging receiving coil based on a mesh shape includes a mesh-shaped unit 1, a receiving plate module 2, a data processing unit 3, and a control display unit 4, where the mesh-shaped unit 1, the receiving plate module 2, and the data processing unit 3 each communicate with the control display unit 4, and the receiving plate module 2 is mounted on a chassis of a wireless charging vehicle;
the mesh-shaped unit 1 includes a detection signal transmitter and a detection signal receiving strip that are embedded in the ground fixedly and disposed symmetrically;
the receiving plate module 2 includes a lighting unit 23, a wireless charging receiving coil 22, a telescoping probe 24, and a support plate 21, where the wireless charging receiving coil 22 is mounted on a center of the support plate 21, and the telescoping probe 24 and the lighting unit 23 are both mounted on the support plate 21; and
the data processing unit 3 is mounted on a center of the wireless charging receiving coil 22.
A location of the probe is obtained through the probe that can eject actively, and further a location of a center point of the wireless charging receiving coil is obtained through conversion, which may greatly improve accuracy and facilitate operations.
Further, there are at least two telescoping probes 24, respectively mounted on opposite corners of the support plate.
Further, there are at least two groups of lighting units 23, evenly mounted on the support plate.
Further, the support plate 21 is a rectangular support plate.
Further, the lighting unit 23 is a searchlight.
Further, the receiving plate module 2 is mounted on the chassis of the wireless charging vehicle through bolt connection.
Further, when ends of the two telescoping probes are in an effective detection range, coordinates, relative to a reference origin, of a center point of the receiving coil in the receiving plate module are:
x P2 Xq+ min(xp,xq),y = 2 Yq + min(yp,yq)
where (xy,yp) and (xy,yp) are respectively horizontal and vertical coordinate
locations, in the mesh-shaped unit, of the ends of the two telescoping probes;
when an end of the telescoping probe is in any one of an area A, an area B, an area C, and an area D, a horizontal and vertical coordinate location (x, y), in the mesh-shaped unit, of the end of the telescoping probe is obtained according to the following formula:
HL mL Hn m the area A: X = m '* - ;m-n±L' the area B: x = _,y = mnL m~n m~n ;
Hn-m nL Hn mn the area C: X - , y = n; and the area D: x = y = , where nmL n-m±L' m~n m~n
n and m are blocking data formed by transmitting, by two transmitters, signals to corresponding detection signal receiving strips, and when a landing point of the probe is in the following areas, specific situations are as follows:
the area A: m is blocking data formed after a first detection signal transmitter 111 transmits a signal, and a second detection signal receiving strip 122 is blocked; and n is blocking data formed after a second detection signal transmitter 112 transmits a signal, and the second detection signal receiving strip 122 is blocked; the area B: m is blocking data formed after the second detection signal transmitter 112 transmits a signal, and the second detection signal receiving strip 122 is blocked; and n is blocking data formed after a third detection signal transmitter 113 transmits a signal, and a first detection signal receiving strip 121 is blocked; the area C: m is blocking data formed after the third detection signal transmitter 113 transmits a signal, and the first detection signal receiving strip 121 is blocked; and n is blocking data formed after a fourth detection signal transmitter 114 transmits a signal, and the first detection signal receiving strip 121 is blocked; and the area D: m is blocking data formed after the first detection signal transmitter 111 transmits a signal, and the second detection signal receiving strip 122 is blocked; and n is blocking data formed after the fourth detection signal transmitter 114 transmits a signal, and the first detection signal receiving strip 121 is blocked;
H is a transverse length of the mesh-shaped unit, and L is a vertical width of the mesh-shaped unit;
there are four detection signal transmitters, which are respectively the first detection signal transmitter 111, the second detection signal transmitter 112, the third detection signal transmitter 113, and the fourth detection signal transmitter 114; and there are two detection signal receiving strips, which are respectively the first detection signal receiving strip 121 and the second detection signal receiving strip 122;
the four detection signal transmitters are respectively disposed on four vertexes of the mesh-shaped unit, and the two detection signal receiving strips are respectively disposed on two vertical sides of the mesh-shaped unit;
the area A, the area B, the area C and the area D are four areas sequentially obtained by dividing the mesh-shaped unit from left according to a clockwise direction after performing connection according to diagonals of the mesh-shaped unit, and the reference origin is a top left vertex of the mesh-shaped unit; and
that the ends of the two telescoping probes are in the effective detection range means that the ends of the two telescoping probes are respectively located in the area A and the area B, or the ends of the two telescoping probes are respectively located in the area C and the area D.
A method for obtaining a location of a wireless charging receiving coil based on a mesh shape includes: enabling a wireless charging vehicle to be driven to a wireless charging parking space by using the foregoing apparatus for obtaining a location of a wireless charging receiving coil based on a mesh shape, so that a wireless charging receiving coil mounted on the wireless charging vehicle enters a mesh-shaped unit 1; turning on, by a driver, a lighting unit mounted in a receiving plate module to determine whether there is a foreign matter under the receiving plate module; turning off the lighting unit if there is no foreign matter, and pressing a detection button according to a prompt from a control display unit, so that a telescoping probe mounted on a support plate of the receiving plate module ejects; obtaining a location of an end of the telescoping probe by using a data processing unit; and calculating coordinates, relative to a reference origin, of a center point of the wireless charging receiving coil.
Further, when ends of two telescoping probes are not in an effective detection range, the control display unit sends out a prompt; after the telescoping probes are withdrawn, the wireless charging vehicle adjusts a location in the mesh-shaped unit again, so that the two telescoping probes eject again; and after the ends of the telescoping probes enter the effective detection range simultaneously, the coordinates, relative to the reference origin, of the center point of the wireless charging receiving coil are calculated.
In the present invention, through much analysis and research, a new way in which active detection is performed by using a telescoping probe is provided. In addition, it is discovered that, only when two probes are in an effective charging range simultaneously and coordinates of a center point of a receiving plate are in an allowed error range of the center point, a to-be-charged vehicle enters an accurate charging location, so that effective charging may be performed. A driver may determine to move left/right, forward/backward according to obtained coordinate information. A ground effective charging range is generally 1.5 times or 2 times larger than an area of a wireless charging receiving coil, and the allowed error range of the center point is within 0.05 m around a geometric center of the effective charging range, which may improve user experience of a vehicle owner.
Beneficial Effect
The present invention provides an apparatus and a method for obtaining a location of a wireless charging receiving coil based on a mesh shape. The apparatus includes a mesh-shaped unit 1, a receiving plate module 2, a data processing unit 3, and a control display unit 4, where the mesh-shaped unit 1, the receiving plate module 2, and the data processing unit 3 each communicate with the control display unit 4, and the receiving plate module 2 is mounted on a chassis of a wireless charging vehicle. Automatic location obtaining of the wireless charging receiving coil may be implemented in an effective charging range, and the data processing unit may rapidly transmit, after obtaining the location of the wireless charging receiving coil, the location to the control display unit. In addition, the apparatus provided in the present invention may obtain locations of wireless charging receiving coils of a plurality of vehicle types, and a ground device only works when performing detection and alignment in a usage procedure, and does not respond in another situation. The apparatus is not easily affected by an electromagnetic field, and may work more stably in all weathers.
FIG. 1 is a total assembly diagram of an apparatus and a method for obtaining a location of a wireless charging receiving coil based on a mesh shape.
FIG. 2 is a schematic diagram of a mesh-shaped unit, where (a) is a layout diagram of the mesh-shaped unit; and (b) is a reference coordinate diagram of the mesh-shaped unit.
FIG. 3 is a layout diagram of a receiving plate module.
FIG. 4 is a schematic diagram of an area of a landing point of a probe, where (a) is landing in an area A, (b) is landing in an area B, (c) is landing in an area C, and (d) is landing in an area D.
FIG. 5 is a schematic structural diagram of a telescoping probe.
FIG. 6 is a schematic flowchart of a method according to the present invention.
Labels in the accompanying drawings: 1-mesh-shaped unit, 2-receiving plate module, 3-data processing unit, 4-control display unit, 111-first detection signal transmitter, 112-second detection signal transmitter, 113-third detection signal transmitter, 114-fourth detection signal transmitter, 121-first detection signal receiving strip, 122-second detection signal receiving strip, 21-support plate, 22-wireless charging receiving coil, 23-lighting unit, 24-telescoping probe, 241-probe fixing plate, 242-probe head, 5-conducting wire.
The present invention is further described with reference to the accompanying drawings and embodiments.
As shown in FIG. 1, an apparatus for obtaining a location of a wireless charging receiving coil based on a mesh shape includes a mesh-shaped unit 1, a receiving plate module 2, a data processing unit 3, and a control display unit 4, where the mesh-shaped unit 1, the receiving plate module 2, and the data processing unit 3 each communicate with the control display unit 4, and the receiving plate module 2 is mounted on a chassis of a wireless charging vehicle; and
the mesh-shaped unit 1 includes a detection signal transmitter and a detection signal receiving strip that are embedded in the ground fixedly and disposed symmetrically.
In this embodiment, as shown in FIG. 2, there are four detection signal transmitters, which are respectively a first detection signal transmitter 111, a second detection signal transmitter 112, a third detection signal transmitter 113, and a fourth detection signal transmitter 114; and there are two detection signal receiving strips, which are respectively a first detection signal receiving strip 121 and a second detection signal receiving strip 122; and
the four detection signal transmitters are disposed on four vertexes of the mesh-shaped unit, and the two detection signal receiving strips are disposed on two vertical sides of the mesh-shaped unit.
As shown in FIG. 3,the receiving plate module 2 includes a lighting unit 23, a wireless charging receiving coil 22, a telescoping probe 24, and a support plate 21, where the wireless charging receiving coil 22 is mounted on a center of the support plate 21, and the telescoping probe 24 and the lighting unit 23 are both mounted on the support plate 21; and the data processing unit 3 is mounted on a center of the wireless charging receiving coil 22.
A location of the probe is obtained through the probe that can eject actively, and further a location of a center point of the wireless charging receiving coil is obtained through conversion, which may greatly improve accuracy and facilitate operations.
There are at least two telescoping probes 24, respectively mounted on opposite corners of the support plate. The telescoping probe 24 is pushed by an electric push rod, and the electric push rod is connected to the control display unit through a conducting wire 5.
There are at least two groups of lighting units 23, evenly mounted on the support plate.
The support plate 21 is a rectangular support plate.
The lighting unit 23 is a searchlight.
The receiving plate module 2 is mounted on the chassis of the wireless charging vehicle through bolt connection.
When ends of the two telescoping probes 24 are in an effective detection range, coordinates, relative to a reference origin, of a center point of the receiving coil in the receiving plate module are:
x P2 Xq+ min(xp,x),y = 2 Yq + min(yp,yq)
where (xy,yp) and (xy,yp) are respectively horizontal and vertical coordinate
locations, in the mesh-shaped unit 1, of the ends of the two telescoping probes.
As shown in FIG. 4, when an end of the telescoping probe is in any one of an area A, an area B, an area C, and an area D, a horizontal and vertical coordinate location (x, y), in the mesh-shaped unit 1, of the end of the telescoping probe is obtained according to the following formula:
HL mL Hn mn the area A: X = m- ' m- ; the area B: x = ,y = ; m-+' m-n±L' m~n m~n
Hn-m nL Hn mn the area C:X - ,y = ; and the area D: x = , where nmL n-m±L' m~n m~n
n and m are blocking data formed by transmitting, by two transmitters, signals to corresponding detection signal receiving strips, and when a landing point of the probe is in the following areas, specific situations are as follows:
the area A: m is blocking data formed after afirst detection signal transmitter 111 transmits a signal, and a second detection signal receiving strip 122 is blocked; and n is blocking data formed after a second detection signal transmitter 112 transmits a signal, and the second detection signal receiving strip 122 is blocked;
the area B: m is blocking data formed after the second detection signal transmitter 112 transmits a signal, and the second detection signal receiving strip 122 is blocked; and n is blocking data formed after a third detection signal transmitter 113 transmits a signal, and a first detection signal receiving strip 121 is blocked;
the area C: m is blocking data formed after the third detection signal transmitter 113 transmits a signal, and the first detection signal receiving strip 121 is blocked; and n is blocking data formed after a fourth detection signal transmitter 114 transmits a signal, and the first detection signal receiving strip 121 is blocked; and
the area D: m is blocking data formed after the first detection signal transmitter 111 transmits a signal, and the second detection signal receiving strip 122 is blocked; and n is blocking data formed after the fourth detection signal transmitter 114 transmits a signal, and the first detection signal receiving strip 121 is blocked;
H is a transverse length of the mesh-shaped unit, and L is a vertical width of the mesh-shaped unit;
there are four detection signal transmitters, which are respectively the first detection signal transmitter 111, the second detection signal transmitter 112, the third detection signal transmitter 113, and the fourth detection signal transmitter 114; and there are two detection signal receiving strips, which are respectively the first detection signal receiving strip 121 and the second detection signal receiving strip 122; the four detection signal transmitters are respectively disposed on four vertexes of the mesh-shaped unit, and the two detection signal receiving strips are respectively disposed on two vertical sides of the mesh-shaped unit; the area A, the area B, the area C and the area D are four areas sequentially obtained by dividing the mesh-shaped unit from left according to a clockwise direction after performing connection according to diagonals of the mesh-shaped unit, and the reference origin is a top left vertex of the mesh-shaped unit; and that the ends of the two telescoping probes are in the effective detection range means that the ends of the two telescoping probes are respectively located in the area A and the area B, or the ends of the two telescoping probes are respectively located in the area C and the area D.
A method for obtaining a location of a wireless charging receiving coil based on a mesh shape is provided. As shown in FIG. 6, a mesh-shaped unit 1 is embedded into the ground of a wireless charging parking space, a wireless charging vehicle enters the wireless charging parking space, a wireless charging receiving coil 22 enters an effective charging range, and a driver turns on a searchlight integrated in a receiving plate module 2 to determine whether there is a foreign matter, and turns off the searchlight if there is no foreign matter. Then, an alignment button is pressed according to a prompt of a control display unit. In this case, a first telescoping probe which is mounted on a corner of a rectangular support plate on the receiving plate module 2 ejects. If an end of the telescoping probe falls within an area A in the mesh-shaped unit 1, coordinates, relative to a reference origin, of the first telescoping probe in the horizon, which are obtained, through calculation, by a data processing unit 3 electrically connected to the mesh-shaped unit 1, are:
1.5 0.75 * 1.5 x1l 0.750 m, y1 l 0.563 m. 0.75 - 0.25 + 1 0.75 - 0.25 + 1.5
When a second telescoping probe which is mounted on the rectangular support plate on the receiving plate module 2 and disposed at a corner opposite to that of the first telescoping probe ejects, if an end of the telescoping probe falls within an area B in the mesh-shaped unit, coordinates, relative to the reference origin, of the second telescoping probe in the horizon, which are obtained, through calculation, by the data processing unit 3 electrically connected to the mesh-shaped unit, are:
1*2 1*2 x2 = = 0.667 m,y2 = = 0.667 m. 1+2 1+2
Coordinates, relative to the reference origin, of a center point of the wireless charging receiving coil 22 in the receiving plate module 2, which are obtained according to (xl, yl) and (x2, y2), are:
10.7 5 - 0.667| 2= +(x1, x2)min = 0.709 m 2
|0.667 - 0.563| y =2 + (y1,y2)min 0.615 m
where H = 1m, and L = 1.5 m.
Then, the data processing unit 3 transmits the obtained coordinates, relative to the reference origin, of the center point of the wireless charging receiving coil 22 on the receiving plate module 2 to the control display unit 4, and the control display unit displays the coordinates on an interface. Similarly, if the end of the telescoping probe falls within an area C or D in the mesh-shaped unit, the data processing unit 3 obtains, through corresponding calculation, the coordinates, relative to the reference origin, of the center point of the wireless charging receiving coil 22 on the receiving plate module 2. Then, the data processing unit 3 transmits the obtained coordinates, relative to the reference origin, of the center point of the wireless charging receiving coil 22 on the receiving plate module 2 to the control display unit 4, and the control display unit displays the coordinates on the interface, to facilitate a next operation of the driver.
Finally, it should be noted that the foregoing embodiments are merely intended for describing the technical solutions of the present invention, but not for limiting the present invention. Although the present invention is described in detail with reference to the foregoing embodiments, persons of ordinary skill in the art should understand that they may still make modifications or equivalent replacements to the specific implementations of the present invention, without departing from the spirit and scope of the present invention, and the modifications or equivalent replacements shall all fall within the protection scope of claims of the present invention.
Claims (9)
1. An apparatus for obtaining a location of a wireless charging receiving coil based on a mesh shape, comprising a mesh-shaped unit (1), a receiving plate module (2), a data processing unit (3), and a control display unit (4), wherein the mesh-shaped unit (1), the receiving plate module (2), and the data processing unit (3) each communicate with the control display unit (4), and the receiving plate module (2) is mounted on a chassis of a wireless charging vehicle;
the mesh-shaped unit (1) comprises a detection signal transmitter and a detection signal receiving strip that are embedded in the ground fixedly and disposed symmetrically;
the receiving plate module (2) comprises a lighting unit (23), a wireless charging receiving coil (22), a telescoping probe (24), and a support plate (21), wherein the wireless charging receiving coil (22) is mounted on a center of the support plate (21), and the telescoping probe (24) and the lighting unit (23) are both mounted on the support plate (21); and
the data processing unit (3) is mounted on a center of the wireless charging receiving coil (22).
2. The apparatus according to claim 1, wherein there are at least two telescoping probes (24), respectively mounted on opposite corners of the support plate.
3. The apparatus according to claim 1, wherein there are at least two groups of lighting units (23), evenly mounted on the support plate.
4. The apparatus according to claim 2 or 3, wherein the support plate (21) is a rectangular support plate.
5. The apparatus according to claim 3, wherein the lighting unit (23) is a searchlight.
6. The apparatus according to claim 1, wherein the receiving plate module (2) is mounted on the chassis of the wireless charging vehicle through bolt connection.
7. The apparatus according to claim 2, wherein when ends of the two telescoping probes (24) are in an effective detection range, coordinates, relative to a reference origin, of a center point of the receiving coil in the receiving plate module (2) are: x P2 Xq+ min(xp,xq),y = 2 Yq + min(yp,yq) wherein (xy,yp)and (xy,yp) are respectively horizontal and vertical coordinate locations, in the mesh-shaped unit, of the ends of the two telescoping probes; when an end of the telescoping probe (24) is in any one of an area A, an area B, an area C, and an area D, a horizontal and vertical coordinate location (x, y), in the mesh-shaped unit (1), of the end of the telescoping probe (24) is obtained according to the following formula:
HL mL Hn m the area A: X m- ' the area B: x = m~n _,y = m~n ; mnL m-n±L'
the area C: y = ; and the area D: xy = , wherein n-m±L' n-m±L' m~n m~n
n and m are blocking data formed by transmitting, by two transmitters, signals to corresponding detection signal receiving strips, and when a landing point of the probe is in the following areas, specific situations are as follows:
the area A: m is blocking data formed after a first detection signal transmitter 111 transmits a signal, and a second detection signal receiving strip 122 is blocked; and n is blocking data formed after a second detection signal transmitter 112 transmits a signal, and the second detection signal receiving strip 122 is blocked;
the area B: m is blocking data formed after the second detection signal transmitter 112 transmits a signal, and the second detection signal receiving strip 122 is blocked; and n is blocking data formed after a third detection signal transmitter 113 transmits a signal, and a first detection signal receiving strip 121 is blocked;
the area C: m is blocking data formed after the third detection signal transmitter 113 transmits a signal, and the first detection signal receiving strip 121 is blocked; and n is blocking data formed after a fourth detection signal transmitter 114 transmits a signal, and the first detection signal receiving strip 121 is blocked; and the area D: m is blocking data formed after the first detection signal transmitter 111 transmits a signal, and the second detection signal receiving strip 122 is blocked; and n is blocking data formed after the fourth detection signal transmitter 114 transmits a signal, and the first detection signal receiving strip 121 is blocked;
H is a transverse length of the mesh-shaped unit, and L is a vertical width of the mesh-shaped unit;
there are four detection signal transmitters, which are respectively the first detection signal transmitter 111, the second detection signal transmitter 112, the third detection signal transmitter 113, and the fourth detection signal transmitter 114; and there are two detection signal receiving strips, which are respectively the first detection signal receiving strip 121 and the second detection signal receiving strip 122;
the four detection signal transmitters are respectively disposed on four vertexes of the mesh-shaped unit, and the two detection signal receiving strips are respectively disposed on two vertical sides of the mesh-shaped unit;
the area A, the area B, the area C and the area D are four areas sequentially obtained by dividing the mesh-shaped unit (1) from left according to a clockwise direction after performing connection according to diagonals of the mesh-shaped unit (1), and the reference origin is a top left vertex of the mesh-shaped unit (1); and
that the ends of the two telescoping probes (24) are in the effective detection range means that the ends of the two telescoping probes (24) are respectively located in the area A and the area B, or the ends of the two telescoping probes (24) are respectively located in the area C and the area D.
8. A method for obtaining a location of a wireless charging receiving coil based on a mesh shape, comprising: enabling a wireless charging vehicle to be driven to a wireless charging parking space by using the apparatus according to any one of claims 1 to 7, so that a wireless charging receiving coil mounted on the wireless charging vehicle enters a mesh-shaped unit (1); turning on, by a driver, a lighting unit (23) mounted in a receiving plate module (2) to determine whether there is a foreign matter under the receiving plate module (2); turning off the lighting unit (23) if there is no foreign matter, and pressing a detection button according to a prompt from a control display unit (4), so that a telescoping probe (24) mounted on a support plate of the receiving plate module (2) ejects; obtaining a location of an end of the telescoping probe by using a data processing unit (3); and calculating coordinates, relative to a reference origin, of a center point of the wireless charging receiving coil.
9. The method according to claim 7, wherein when ends of two telescoping probes (24) are not in an effective detection range, the control display unit (4) sends out a prompt;after the telescoping probes (24) are withdrawn, the wireless charging vehicle adjusts a location in the mesh-shaped unit (1) again, so that the two telescoping probes (24) eject again; and after the ends of the telescoping probes (24) enter the effective detection range simultaneously, the coordinates, relative to the reference origin, of the center point of the wireless charging receiving coil are calculated.
(a)
1/5 FIG. 1
FIG. 2A
(b)
2/5 FIG. 3 FIG. 2B
(a)(b)
(c)(d)
FIG. 4
3/5
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911346883.0 | 2019-12-24 | ||
| CN201911346883.0A CN111009971A (en) | 2019-12-24 | 2019-12-24 | Device and method for acquiring position of receiving coil based on mesh wireless charging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2020101785A4 true AU2020101785A4 (en) | 2020-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| AU2020101785A Ceased AU2020101785A4 (en) | 2019-12-24 | 2020-08-12 | Apparatus and method for obtaining location of wireless charging receiving coil based on mesh shape |
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| Country | Link |
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| CN (1) | CN111009971A (en) |
| AU (1) | AU2020101785A4 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112556637B (en) * | 2021-03-01 | 2021-05-11 | 江苏方天电力技术有限公司 | Wireless charging coil angle deviation positioning system and method based on electronic compass |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683521A (en) * | 2012-09-21 | 2014-03-26 | 昆山博驭汽车数字化有限公司 | Laser positioning intelligent connection electric vehicle wireless charger and transceiver system |
| CN105539193B (en) * | 2016-02-06 | 2017-11-21 | 青岛鲁渝能源科技有限公司 | A kind of electric automobile wireless charging positioning alignment device and control method |
| CN105634081B (en) * | 2016-03-30 | 2018-09-07 | 吉林大学 | A kind of self-adapting electric automobile wireless power supply mobile platform based on laser ranging |
| CN105966260A (en) * | 2016-06-20 | 2016-09-28 | 黄杰 | Automatic wireless charging positioning device for electric car |
| CN109017426A (en) * | 2018-09-28 | 2018-12-18 | 吉林大学 | A kind of wireless charging system for electric automobile of integrated auxiliary para function |
| CN109849697A (en) * | 2019-01-14 | 2019-06-07 | 深圳大学 | One kind is for automobile wireless charging contraposition deviation detection device and method |
-
2019
- 2019-12-24 CN CN201911346883.0A patent/CN111009971A/en not_active Withdrawn
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