Many-to-many wireless charging identification method and system and charging pile

Abstract

The invention provides a many-to-many wireless charging identification method, which is characterized in that a plurality of charging piles are arranged in a charging area, a pile end controller is arranged in each charging pile, and the pile end controllers are connected with corresponding ground coils. The identification method comprises the following steps: S1, a pile end controller generates a wireless hotspot name corresponding to a charging pile according to a wireless network state in a charging area; s2, the pile end controller generates a power pulse code according to the wireless hotspot name; s3, the pile end controller periodically sends power pulse codes through a ground coil; and S4, after receiving the power pulse code, a vehicle end coil loaded on the to-be-charged vehicle analyzes the power pulse code to obtain a wireless hotspot name, and accesses a wireless hotspot of the corresponding charging pile based on the wireless hotspot name. The beneficial effects are that automatic pairing is implemented through coil coupling, time cost is saved, and pairing efficiency in a many-to-many scene is improved. Charging of the vehicle is completed through the charging pile, and operation is convenient.

Description

Technical Field

[0001] This invention relates to the field of automotive charging technology, and more particularly to a method, system, and charging station for identifying many-to-many wireless charging. Background Technology

[0002] With the continuous development of the new energy vehicle industry, new energy vehicles are gradually replacing gasoline vehicles. To meet the increasing charging needs of new energy vehicles, multiple charging piles are being installed in parking lots, residential areas, and other designated parking areas. Traditional charging technology relies on the physical connection of metal conductors to transmit electrical energy and is used in wired charging.

[0003] For example, patent document CN202010877751.7 discloses an electric vehicle charging pile for parking lots and its adapted control system. The charging pile includes a main body and an indicator bracket. The main body has an inner cavity divided by a partition plate, and a transformer and controller are located on top. The charging cable is connected to the charging gun via a movable plate that can move up and down. The movable plate moves through a drive motor, pulley seats, and connecting wires, and its panel has concave rotating wheels and auxiliary rotating wheels to straighten the charging cable. The indicator bracket includes a mounting base plate, connecting rods, push-pull electric cylinders, and functional modules with an image acquisition unit, alarm, and warning lights. The adapted control system is centered on a control unit, integrating an image processing unit, and is equipped with an image acquisition unit and an alarm prompting unit. It can collect and identify vehicle license plate information, allowing new energy vehicles to drive in and charge normally.

[0004] With the continuous iteration and development of charging technology, wireless charging solutions are becoming increasingly mature, freeing users from the constraints of cables. However, in recent years, the number of new energy vehicles has also increased dramatically, often resulting in hundreds of cars parked in a large parking lot, with multiple new energy vehicles searching for charging stations simultaneously. In such a complex scenario, the pairing efficiency between cars and charging stations is low, and the large number of charging stations also increases the manpower maintenance and management costs. Summary of the Invention

[0005] To address the aforementioned multi-vehicle-to-multi-pile charging scenario, this invention provides a method for identifying multi-to-multi wireless charging, which involves setting up multiple charging piles within a charging area, with each charging pile equipped with a pile-end controller connected to a corresponding ground coil.

[0006] The identification method includes:

[0007] Step S1: The charging pile controller generates a wireless hotspot name corresponding to the charging pile based on the wireless network status in the charging area;

[0008] Step S2, the pile-end controller generates a power pulse code based on the wireless hotspot name;

[0009] Step S3, the pile end controller periodically sends the power pulse code through the ground coil;

[0010] Step S4, the vehicle end coil loaded on the vehicle to be charged receives the power pulse code and parses it to obtain the wireless hotspot name, and accesses the wireless hotspot of the corresponding charging pile based on the wireless hotspot name to establish communication with the charging pile.

[0011] Preferably, in step S1, the pile end controller scans the existing wireless network name in the charging area, and determines the wireless hotspot name of the charging pile itself based on the existing wireless network name.

[0012] Preferably, in step S1, the pile end controller generates the wireless hotspot name according to a preset encoding rule, and the wireless hotspot name includes an encoding part and a digital part.

[0013] In step S2, the pile end controller generates a corresponding power pulse code based on the digital part of the wireless hotspot name.

[0014] Preferably, step S4 includes:

[0015] Step S41, the vehicle to be charged approaches the charging pile, and the vehicle end coil of the vehicle to be charged acquires the power pulse code sent by the ground coil;

[0016] Step S42, the vehicle end controller of the vehicle to be charged parses the digital part of the corresponding wireless hotspot name according to the power pulse code;

[0017] Step S43, the vehicle end controller restores the wireless hotspot name based on the digital part of the wireless hotspot name according to the preset encoding rule, and accesses the wireless hotspot of the corresponding charging pile according to the wireless hotspot name.

[0018] Preferably, the power pulse code includes a plurality of power pulse groups arranged at intervals.

[0019] The application also provides a multi-to-multi wireless charging identification system, which is applied to the multi-to-multi wireless charging identification method, and a plurality of charging piles are arranged in the charging area.

[0020] The identification system includes:

[0021] A pile end controller is arranged in the corresponding charging pile, and is used to generate a wireless hotspot name corresponding to the charging pile according to the wireless network state in the charging area, and then generate a power pulse code according to the wireless hotspot name.

[0022] A ground coil is arranged in the corresponding charging pile and connected to the pile-end controller, and is configured to periodically send the power pulse code;

[0023] A vehicle-end coil is arranged in the vehicle to be charged, and is configured to receive the power pulse code sent by the ground coil of the charging pile when the vehicle to be charged approaches the charging pile;

[0024] A vehicle-end controller is arranged in the vehicle to be charged and connected to the vehicle-end coil, and is configured to analyze the received power pulse code to obtain the wireless hotspot name, and access the wireless hotspot of the corresponding charging pile based on the wireless hotspot name.

[0025] Preferably, the pile-end controller comprises:

[0026] A wireless identification module is configured to scan the existing wireless network name in the charging area;

[0027] A hotspot generation module is connected to the wireless identification module, and is configured to determine the wireless hotspot name of the charging pile based on the existing wireless network name;

[0028] An encoding generation module is connected to the hotspot generation module, and is configured to generate the corresponding power pulse code based on the wireless hotspot name.

[0029] Preferably, the hotspot generation module is preconfigured with an encoding rule, and the hotspot generation module generates the wireless hotspot name according to the preconfigured encoding rule, wherein the wireless hotspot name comprises an encoding part and a numerical part;

[0030] The encoding generation module generates the corresponding power pulse code according to the numerical part of the wireless hotspot name;

[0031] The vehicle-end controller comprises:

[0032] An analysis module is configured to analyze the numerical part of the wireless hotspot name according to the received power pulse code;

[0033] A restoration module is connected to the analysis module, and is configured to restore the wireless hotspot name based on the numerical part of the wireless hotspot name according to the preconfigured encoding rule;

[0034] A communication module is connected to the restoration module, and is configured to access the wireless hotspot of the corresponding charging pile according to the wireless hotspot name, so as to establish communication with the charging pile.

[0035] The application further provides a charging pile which adopts the above-mentioned identification method of multiple-to-multiple wireless charging and establishes communication with the vehicle to be charged.

[0036] The application also provides a charging pile, wherein the pile end controller and the ground coil in the above-mentioned multi-pair multi-wireless charging identification system are arranged in the charging pile.

[0037] The beneficial effects obtained through the above-mentioned scheme are:

[0038] 1. The automatic pairing is implemented through the coils at both ends of the vehicle and the charging pile, time cost is saved, and the identification and pairing efficiency in the multi-pair multi-scene is improved.

[0039] 2. The charging process can be independently completed only through the corresponding charging pile by pairing and connecting the vehicle to be charged and the charging pile, and the operation is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 is a schematic diagram of the working process of the whole system of the application;

[0041] Figure 2 is a schematic diagram of the flow of the identification method of the application;

[0042] Figure 3 is a schematic diagram of the working process of the vehicle end controller of the application;

[0043] Figure 4 is a schematic diagram of the power pulse encoding generation of the application;

[0044] Figure 5 is a schematic diagram of the internal modules of the pile end controller of the application;

[0045] Figure 6 is a schematic diagram of the internal modules of the vehicle end controller of the application;

[0046] In the drawings:

[0047] 1, pile end controller, 11, wireless identification module, 12, hotspot generation module, 13, encoding generation module, 14, pulse emission module, 141, first pulse group, 142, second pulse group, 14A, starting section, 14B data section, 14C, ending section, 2, ground coil, 3, vehicle end coil, 4, vehicle end controller, 41, analysis module, 42, restoration module, 43, communication module DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the application.

[0049] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0050] The present application will be further described below in conjunction with the drawings and specific embodiments, but not as a limitation of the present application.

[0051] In the preferred embodiment of the present application, as shown in Figure 1 A plurality of charging piles are arranged in the charging area, and a pile end controller 1 is arranged in each charging pile, and the pile end controller 1 is connected to a corresponding ground coil 2; the chassis of the vehicle to be charged is loaded with a vehicle end coil 3 and a vehicle end controller 4.

[0052] As shown in Figure 2 The identification method comprises:

[0053] In step S1, the pile end controller 1 generates a wireless hotspot name corresponding to the charging pile according to the wireless network state in the charging area;

[0054] In step S2, the pile end controller 1 generates a power pulse code according to the wireless hotspot name;

[0055] In step S3, the pile end controller 1 periodically transmits the power pulse code through the ground coil 2;

[0056] In step S4, the vehicle end coil 3 loaded on the vehicle to be charged analyzes the power pulse code after receiving it, obtains the wireless hotspot name, and accesses the wireless hotspot of the corresponding charging pile based on the wireless hotspot name to establish communication with the charging pile.

[0057] In actual application scenarios, each charging pile is arranged at the inner side of the corresponding parking space, and the surface of the charging pile has a liquid crystal screen for displaying charging information; the pile end controller 1 is built in the charging pile as the processing hub of the charging pile; the charging pile is equipped with a ground coil 2, which is generally located at the middle position of the parking space and is arranged on the ground; the pile end controller 1 and the ground coil 2 are connected through an interconnection cable, and generally, the interconnection cable and the ground coil 2 are buried underground.

[0058] Specifically, the charging area is located in each parking space, and each charging area of each parking space is defined within the working range of the ground coil. The vehicle to be charged can start charging when it is parked in the charging area.

[0059] The pile end controller and the vehicle end controller are processors loaded in the charging pile and the car, respectively.

[0060] Further, the power pulse code of the present scheme adopts a binary encoding mode.

[0061] The to-be-charged vehicle accesses the charging pile through a hotspot pairing mode, and after successful connection, the BMS of the to-be-charged vehicle sends the charging demand corresponding to the charging curve to the charging pile, wherein the charging parameters of the vehicle, including the battery type, the rated voltage, the current SOC and the maximum allowed voltage / current, are sent to the charging pile based on the parameters and the corresponding charging curve is generated.

[0062] In the preferred embodiment of the present application, in step S1, the pile-end controller 1 scans the existing wireless network name in the charging area, and determines the wireless hotspot name of the charging pile based on the existing wireless network name.

[0063] Specifically, the pile-end controller 1 scans the wireless network state in the charging area to obtain the existing wireless hotspot name, combines the maximum hotspot code number configurable on site and the preset naming rule, excludes the existing wireless hotspot name, and then generates a wireless hotspot name through a random number to ensure that there is no repeated wireless hotspot name.

[0064] Further, the preset coding rule is a combination of an alphabetical code part and a digital part, the code part is a fixed wpt field, and the digital part is a five-digit id, and the five-digit id is generated in a random number manner, and the range of the random number is the maximum hotspot code number configurable on site.

[0065] In the present scheme, an example of a wireless hotspot name is: wpt00001.

[0066] Further, the maximum hotspot code number configurable on site is theoretically related to the code bit number, but in the present scheme, the effective code bit number constituting a power pulse code is eight, and the number of charging piles is much smaller than the number of eight code bits that can be represented, so the maximum hotspot code number is generally set to the number of charging piles in the charging area.

[0067] In the preferred embodiment of the present application, in step S1, the pile-end controller 1 generates a wireless hotspot name according to a preset coding rule, and the wireless hotspot name includes a code part and a digital part.

[0068] In step S2, the pile-end controller 1 generates a corresponding power pulse code based on the digital part of the wireless hotspot name.

[0069] Now an embodiment is provided to explain the process of generating a wireless hotspot to those skilled in the art, and the arrow points to the transmission direction of the power pulse code, and the embodiment is as follows:

[0070] The charging area contains nine charging piles, the maximum number of hotspot codes that can be configured on site is nine, five charging piles already have wireless hotspot names, which are wpt00001, wpt00002, wpt00004, wpt00006 and wpt00008, the optional wireless hotspot names of the sixth charging pile include wpt00003, wpt00005, wpt00007 and wpt00009, the pile end controller 1 randomly selects wpt00005 as the wireless hotspot name of the charging pile through the method of random number, at this time, wpt00005 also serves as the existing wireless hotspot name in the charging area, and the remaining idle charging piles can only randomly generate wireless hotspot names from wpt00003, wpt00007 and wpt00009 if they want to generate wireless hotspot names.

[0071] As shown in the preferred embodiment of the application, Figure 3 Step S4 comprises:

[0072] Step S41, the vehicle to be charged approaches the charging pile, and the vehicle end coil 3 of the vehicle to be charged obtains the power pulse code sent by the ground coil 2;

[0073] Step S42, the vehicle end controller 4 of the vehicle to be charged parses the digital part of the corresponding wireless hotspot name according to the power pulse code;

[0074] Step S43, the vehicle end controller 4 restores the wireless hotspot name based on the digital part of the wireless hotspot name according to the preset coding rule, and accesses the wireless hotspot of the corresponding charging pile according to the wireless hotspot name.

[0075] In the actual application scenario, the vehicle to be charged finds an idle charging pile and approaches, and stops the vehicle on the charging area of the parking space, the ground coil 2 continuously sends the power pulse code to the outside through broadcasting, the vehicle end coil 3 of the vehicle to be charged is the broadcasting object and receives the power pulse code.

[0076] Generally, the sizes and receiving ranges of vehicle end coils 3 of different vehicle models are different, the ground coil 2 is adapted to all vehicle end coils 3 of different vehicle models, and the broadcasting range can be set as the smallest receiving range of the existing vehicle model, so that the power pulse code broadcast by the ground coil can be received by any vehicle model.

[0077] Specifically, the vehicle end controller 4 connects the vehicle end coil 3 through the interconnection cable and receives the power pulse code, converts the binary code into a number, and fills the part less than five digits with zero.

[0078] Further, the same coding rule as that in the pile end controller 1 is preset in the vehicle end controller 4, the wireless hotspot name is restored based on the obtained digital part, and the current charging pile is connected through the wireless hotspot name.

[0079] In a preferred embodiment of the present application, the power pulse code comprises a plurality of power pulse groups arranged at intervals.

[0080] In particular, the power pulse code comprises a start segment 14A, a data segment 14B and an end segment 14C.

[0081] The code of the start segment 14A and the data segment 14B is fixed:

[0082] The start segment 14A is 0b0101;

[0083] The end segment 14C is 0b1010.

[0084] 0b is a binary prefix, only indicating the form of binary, and does not contain actual information.

[0085] The content of the data segment 14B is based on the digital part of the wireless hotspot name, and the digital part is converted into binary code as the data segment 14B of the power pulse code.

[0086] Further, the pile end controller 1 periodically sends power pulse groups, and the power pulse code is composed of a plurality of power pulse groups.

[0087] In this scheme, the period is 10ms.

[0088] In this scheme, each power pulse code segment comprises twenty-four power pulse groups.

[0089] In which:

[0090] The start segment 14A is composed of four power pulse groups;

[0091] The data segment 14B is composed of sixteen power pulse groups.

[0092] The end segment 14C is composed of four power pulse groups;

[0093] Further, in the data segment 14B, every two identical power pulse groups form a binary digit of the power pulse code, in order to prevent the coding detection error that may occur in the single pulse group code.

[0094] In this scheme, there are two power pulse groups, a first pulse group 141 with a length of 13ms and a second pulse group 142 with a length of 14ms.

[0095] Further, every two first pulse groups 141 are taken as a binary 0, and every two second power pulse groups are taken as a binary 1.

[0096] Now an embodiment is provided to explain the process of generating the power pulse code to those skilled in the art, such as Figure 4As shown, the arrow points to the direction of power pulse encoding transmission, the ground coil 2 transmits the power pulse group in the way of segmented transmission, the order of power pulse group in each segment is from left to right, for example, the encoding of the initial segment 14A is 0b0101, then the ground coil 2 transmits in the way of first pulse group 141, second pulse group 142, first pulse group 141, second pulse group 142, corresponding to the order of 0101, for example, the implementation is as follows:

[0097] The wireless hotspot name of the charging pile is wpt00077, and the pile end controller 1 parses to obtain the digital part as 77. Convert 77 to binary code 0b01001101 as part of the data segment 14B of the power pulse encoding. The pile end controller 1 transmits the power pulse encoding 0101-01001101-1010 to the ground coil 2, transmits the corresponding pulse group in order, and each binary bit contains two pulse groups. The vehicle end coil 3 receives the periodically transmitted power pulse group, and after receiving four fixed power pulse groups, it converts the information corresponding to each pulse group into 0101 as the initial segment 14A, then receives sixteen power pulse groups, from the fifth, every two identical pulse groups as a binary bit, and finally converts into 01001101 as the data segment 14B, and after receiving the fixed power pulse group, it converts the information corresponding to each pulse group into 1010 as the end segment 14C. At this time, the vehicle end coil 3 transmits the power pulse encoding 0101-01001101-1010 to the vehicle end controller 4 for subsequent operation.

[0098] Also provided is a recognition system for a multi-to-multi wireless charging method, still as Figure 1 shown, the recognition system comprises:

[0099] The pile end controller 1 is arranged in the corresponding charging pile, and is used to generate a wireless hotspot name corresponding to the charging pile according to the wireless network state in the charging area, and then generate a power pulse encoding according to the wireless hotspot name;

[0100] The ground coil 2 is arranged in the corresponding charging pile and connected to the pile end controller, and is used to periodically transmit the power pulse encoding;

[0101] The vehicle end coil 3 is arranged in the vehicle to be charged, and is used to receive the power pulse encoding transmitted by the ground coil 2 of the charging pile when the vehicle to be charged approaches the charging pile;

[0102] The vehicle end controller 4 is arranged in the vehicle to be charged and connected to the vehicle end coil 3, and is used to parse the received power pulse encoding to obtain the wireless hotspot name, and access the wireless hotspot of the corresponding charging pile based on the wireless hotspot name.

[0103] Specifically, the pile end controller 1 is connected with the ground coil 2 through an interconnection cable, the vehicle end controller 4 is connected with the vehicle end coil 3 through an interconnection cable, and the vehicle end coil 3 and the ground coil 2 are coupled to form a complete identification system, which can also be applied to a subsequent charging system.

[0104] In the preferred embodiment of the present application, as shown in Figure 5 the pile end controller 1 comprises:

[0105] a wireless identification module 11, configured to scan a wireless network name existing in the charging area;

[0106] a hotspot generation module 12, connected with the wireless identification module 11, configured to determine a wireless hotspot name of the charging pile itself based on the existing wireless network name;

[0107] an encoding generation module 13, connected with the hotspot generation module 12, configured to generate a corresponding power pulse code based on the wireless hotspot name.

[0108] Specifically, the wireless identification module 11 works continuously and constantly acquires the wireless hotspot name information in the charging area, and when other charging piles in the charging area update their own wireless hotspot names, the wireless identification module 11 updates the information at the next communication cycle.

[0109] Correspondingly, when an existing wireless hotspot name disappears, the wireless identification module 11 re-identifies the wireless hotspot name that will disappear.

[0110] Further, the hotspot generation module 12 is pre-set with an encoding rule, receives the optional wireless hotspot name saved by the wireless identification module, and generates a non-repeated wireless hotspot name by means of a random number in combination with the existing wireless hotspot name and the encoding rule.

[0111] Still further, the encoding generation module 13 analyzes the wireless hotspot name generated by the present charging pile, converts the digital part of the wireless hotspot name into a data segment 14B of the power pulse code, and generates the power pulse code in combination with a fixed start segment 14A and an end segment 14C.

[0112] In the present scheme, the pile end controller 1 further comprises a pulse transmission module 14 connected with the ground coil 2, configured to send a plurality of interval-set power pulse groups to the ground coil 2 based on the power pulse code.

[0113] Specifically, the pulse transmission module 14 receives the power pulse code generated by the encoding generation module 13, and periodically sends each binary bit of each segment of the power pulse code to the ground coil 2 in the form of a corresponding power pulse group.

[0114] ​​​​​​​​​​​​​​​​​​​​​​Further, the power pulse group is also a charging medium, which releases high energy output in a pulse-intermittent manner, and adapts to the dynamic charging state of the vehicle-mounted battery.

[0115] In the power pulse group, the transient large current determines the upper limit of the charging rate and matches the peak value allowed by the BMS; the length of each pulse group serves as a coding transmission window, which affects the communication rate and anti-interference; the pulse duty cycle in the pulse group determines the average power of charging and controls the temperature rise; the pulse group realizes coding embedding and communication through load modulation; the total energy of the pulse group affects the charging capacity and the thermal load of the battery; and the pulse waveform of the pulse group matches the coil resonance characteristics, thereby reducing EMI.

[0116] Further, the power level of the power pulse group is low, and almost no radiation is generated, thereby protecting the safety of personnel and all devices during the charging process.

[0117] In the preferred embodiment of the present application, the hotspot generation module 12 is preconfigured with a coding rule, and the hotspot generation module 12 generates a wireless hotspot name according to the preconfigured coding rule; the wireless hotspot name includes a coding part and a digital part;

[0118] The coding generation module 13 generates a corresponding power pulse code according to the digital part of the wireless hotspot name;

[0119] As shown in Figure 6 the vehicle-end controller 4 includes:

[0120] The analysis module 41 is configured to analyze the digital part of the wireless hotspot name according to the received power pulse code;

[0121] The restoration module 42 is connected to the analysis module 41 and is configured to restore the wireless hotspot name based on the digital part of the wireless hotspot name according to the preconfigured coding rule;

[0122] The communication module 43 is connected to the restoration module 42 and is configured to access the wireless hotspot of the corresponding charging pile according to the wireless hotspot name, so as to establish communication with the charging pile.

[0123] Specifically, the analysis module 41 receives the power pulse group sent by the vehicle-end coil 3 and integrates the power pulse group into a complete power pulse code; and the restoration module 42 analyzes the power pulse code and restores the corresponding wireless hotspot name.

[0124] Further, the communication module 43 acquires the wireless hotspot name, takes the wireless hotspot name as a unique identifier, combines a preconfigured key / communication protocol, and realizes vehicle-to-pile non-inductive connection through short-distance communication verification.

[0125] In the preferred embodiment of the present application, a charging pile is also provided, which establishes communication with a vehicle to be charged by using the above-mentioned multi-to-multi wireless charging identification method.

[0126] In the preferred embodiment of the present application, a charging pile is also provided, and the pile-end controller 1 and the ground coil 2 in the above-mentioned multi-to-multi wireless charging identification system are arranged in the charging pile.

[0127] The following embodiment is provided to explain the complete multi-to-multi wireless charging identification process in detail to those skilled in the art, and the embodiment three is as follows:

[0128] There are four charging piles in a charging area, and the wireless hotspot names of the four charging piles are wpt00001, wpt00002, wpt00003 and wpt00004 respectively. Each charging pile sends a power pulse group to the corresponding ground coil 2. Now two vehicles to be charged enter the charging area and find the charging piles to charge. The chassis of each vehicle to be charged is loaded with a vehicle-end coil 3 and a vehicle-end controller 4. Each vehicle to be charged randomly selects a parking space to park, and receives the power pulse code composed of the power pulse group through the vehicle-end coil 3 and the corresponding ground coil 2. For example, one vehicle to be charged parks in front of the charging pile corresponding to wpt00001, and receives the power pulse code composed of the power pulse group 0101-00000001-1010. The digital part is 1, and the corresponding wireless hotspot name wpt00001 is restored according to the preset encoding rule of wpt+ five-digit id of the vehicle-end controller 4, so as to access the corresponding charging pile.

[0129] Each vehicle to be charged is connected to one charging pile point by point, and can directly perform the subsequent charging process through the charging pile. The charging pile displays the current charging state on the liquid crystal screen, including the current power, charging power, expected charging time and charging cost and other parameters.

[0130] The present application can realize the identification and pairing of communication signals and the charging of electric signals through the simple mode of coil coupling, complete the synchronous transmission of double modes through a single channel, efficiently perform the operation mode of identification-pairing-charging, and be applied to the multi-to-multi wireless charging scene.

[0131] The above only describes the preferred embodiments of the present application, and does not limit the implementation and protection scope of the present application. Those skilled in the art should be able to realize that any equivalent replacement and obvious changes made according to the content of the present application should be included in the protection scope of the present application.

Claims

1. A method for identifying many-to-many wireless charging, characterized in that, Multiple charging piles are set up in the charging area, and each charging pile is equipped with a pile end controller, which is connected to the corresponding ground coil. The identification method includes: Step S1: The charging pile controller generates a wireless hotspot name corresponding to the charging pile based on the wireless network status in the charging area; Step S2, the pile-end controller generates a power pulse code based on the wireless hotspot name; Step S3, the pile end controller periodically sends the power pulse code through the ground coil; Step S4: After receiving the power pulse code, the vehicle-mounted coil on the vehicle to be charged parses it to obtain the wireless hotspot name, and connects to the wireless hotspot of the corresponding charging pile based on the wireless hotspot name to establish communication with the charging pile.

2. The method for identifying many-to-many wireless charging according to claim 1, characterized in that, In step S1, the charging pile controller scans the existing wireless network names in the charging area and determines the wireless hotspot name of the charging pile itself based on the existing wireless network names.

3. The method for identifying many-to-many wireless charging according to claim 1, characterized in that, In step S1, the pile-end controller generates the wireless hotspot name according to a preset encoding rule. The wireless hotspot name includes an encoded part and a numeric part. In step S2, the pile-end controller generates a corresponding power pulse code based on the digital part of the wireless hotspot name.

4. The method for identifying many-to-many wireless charging according to claim 3, characterized in that, Step S4 includes: Step S41: The vehicle to be charged approaches the charging pile, and the vehicle-end coil of the vehicle to be charged acquires the power pulse code sent by the ground coil. Step S42, the vehicle-side controller of the vehicle to be charged parses the digital part of the corresponding wireless hotspot name according to the power pulse code; Step S43: The vehicle-mounted controller restores the wireless hotspot name based on the numerical part of the wireless hotspot name according to the preset encoding rules, and connects to the wireless hotspot of the corresponding charging pile according to the wireless hotspot name.

5. The method for identifying many-to-many wireless charging according to claim 1, characterized in that, The power pulse encoding includes multiple power pulse clusters spaced at intervals.

6. A many-to-many wireless charging identification system, characterized in that, The method for identifying multiple wireless charging as described in any one of claims 1-5 is used to set up multiple charging piles in the charging area; The identification system includes: A charging pile controller, installed in the corresponding charging pile, is used to generate a wireless hotspot name corresponding to the charging pile based on the wireless network status in the charging area, and then generate a power pulse code based on the wireless hotspot name. A ground coil is installed inside the corresponding charging pile and connected to the pile-end controller for periodically sending the power pulse code; A vehicle-end coil, installed inside the vehicle to be charged, is used to receive the power pulse code sent by the ground coil of the charging pile when the vehicle to be charged approaches the charging pile. A vehicle-side controller, installed inside the vehicle to be charged and connected to the vehicle-side coil, is used to parse the received power pulse code to obtain the wireless hotspot name, and to access the corresponding wireless hotspot of the charging pile based on the wireless hotspot name.

7. The identification system for many-to-many wireless charging according to claim 6, characterized in that, The pile end controller includes: A wireless identification module is used to scan for the names of existing wireless networks within the charging area; A hotspot generation module is connected to the wireless identification module and determines the wireless hotspot name of the charging pile itself based on the existing wireless network name. The encoding generation module is connected to the hotspot generation module and generates the corresponding power pulse code based on the wireless hotspot name.

8. The identification system for many-to-many wireless charging according to claim 6, characterized in that, The hotspot generation module has preset encoding rules, and the hotspot generation module generates the wireless hotspot name according to the preset encoding rules. The wireless hotspot name includes an encoded part and a numeric part. The encoding generation module generates a corresponding power pulse code based on the numerical part of the wireless hotspot name. The vehicle-side controller includes: The parsing module is used to parse the received power pulse code to obtain the numerical part of the wireless hotspot name; The restoration module, connected to the parsing module, is used to restore the wireless hotspot name based on the numerical part of the wireless hotspot name according to the preset encoding rules. A communication module, connected to the restoration module, is used to access the wireless hotspot of the corresponding charging pile according to the wireless hotspot name, so as to establish communication with the charging pile.

9. A charging pile, characterized in that, The method for identifying multiple wireless charging devices as described in any one of claims 1-5 is used to establish communication with the vehicle to be charged.

10. A charging pile, characterized in that, The charging pile is equipped with a pile-end controller and a ground coil in the identification system for many-to-many wireless charging as described in any one of claims 6-8.

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