Wireless charging system and method

Abstract

This application provides a wireless charging system and method. The system includes a carrier transmitter and a detection device. The carrier transmitter is mounted on a target vehicle. The detection device is positioned within a wireless charging area. When the target vehicle enters the wireless charging area, the carrier transmitter is configured to emit a carrier signal, and the detection device is configured to receive the carrier signal and match the target vehicle with a suitable charging device based on the carrier signal. This embodiment of the application, by mounting a carrier transmitter on the target vehicle and a detection device within the wireless charging area, enables automatic matching of the charging vehicle and charging device. This improves matching efficiency and enhances the user experience.

Description

Technical Field

[0001] This application relates to the field of wireless charging, and more specifically, to a wireless charging system and method. Background Technology

[0002] Against the backdrop of the rapid development of new energy vehicles and smart charging technologies, many-to-many charging scenarios (i.e., a single ground charging station needs to accommodate multiple vehicles of different models or users) have become the mainstream deployment mode for public charging facilities. However, significant technical bottlenecks still exist in this scenario: ground charging stations generally lack the ability to automatically identify vehicle identity or charging needs, relying on manual operation (such as scanning codes for binding, entering vehicle information, or manually selecting charging modes) to complete the matching of vehicles and charging stations. This process not only leads to low identification efficiency (especially during peak hours, easily causing queuing), but also increases operational complexity and the probability of errors due to human intervention, significantly reducing the user experience. Summary of the Invention

[0003] In view of this, the purpose of this application is to provide a wireless charging system and method to improve matching efficiency and enhance user experience.

[0004] In a first aspect, embodiments of this application provide a wireless charging system, including: a carrier transmitting device and a detection device; the carrier transmitting device is disposed on a target vehicle; the detection device is disposed in a wireless charging area; wherein, when the target vehicle enters the wireless charging area, the carrier transmitting device is configured to emit a carrier signal, the detection device is configured to receive the carrier signal, and match a corresponding charging device for the target vehicle according to the carrier signal.

[0005] In the above implementation process, a carrier transmitter is installed on the target vehicle and a detection device is installed in the wireless charging area. When the target vehicle enters the wireless charging area, the carrier transmitter emits a carrier signal, and the detection device receives the carrier signal and matches the target vehicle with the corresponding charging device, thereby realizing automatic matching between the charging vehicle and the charging device, improving matching efficiency and enhancing the user experience.

[0006] In one embodiment, the carrier transmitting device includes: a signal source and a transmitting coil; a first end of the signal source is connected to a first end of the transmitting coil; a second end of the signal source is connected to a second end of the transmitting coil; wherein the signal source is configured to generate a carrier signal, and the transmitting coil is configured to emit the carrier signal.

[0007] In the above implementation, by setting up a carrier transmitting device including a signal source and a transmitting coil, the signal source generates a carrier signal, and the transmitting coil emits the carrier signal. This simple structure enables carrier signal transmission, simplifying the device's structure and reducing its cost. Furthermore, since the carrier signal emitted by this device produces almost no radiation, it improves user safety in wireless charging areas.

[0008] In one embodiment, the carrier transmitting device further includes: a switch; a first end of the signal source is connected to a first end of the switch, and a first end of the transmitting coil is connected to a second end of the switch; the switch is configured to form a modulation waveform of a specific frequency; wherein the modulation waveform is used to modulate the carrier signal to generate a waveform signal; and the transmitting coil is configured to emit the waveform signal.

[0009] In the above implementation process, by setting a switch between the signal source and the transmitting coil, the modulation waveform can be formed by controlling the switch to be turned on and off periodically, thereby modulating the carrier signal generated by the signal source and improving the anti-interference capability of the signal waveform.

[0010] In one embodiment, the carrier transmitting device further includes: a capacitive element and an inductive element; the capacitive element and the inductive element form an LC circuit; a first end of the capacitive element and a first end of the inductive element are connected to a second end of the switch; a second end of the capacitive element is connected to a second end of the signal source and a second end of the transmitting coil; a second end of the inductive element is connected to a first end of the transmitting coil; wherein the LC circuit is configured to filter out harmonics in the waveform signal.

[0011] In the above implementation process, by setting an LC circuit in the carrier transmitting device to filter out harmonics in the waveform signal based on the LC circuit, the stability of the waveform signal can be enhanced.

[0012] In one embodiment, the carrier transmitting device is mounted on the wireless charging module of the target vehicle.

[0013] In the above implementation process, by placing the carrier transmitter on the wireless charging module, there is no need to reserve other installation positions for the carrier transmitter on the vehicle. This reduces the space occupied by the carrier transmitter, reduces the impact of the carrier transmitter on the original structure of the vehicle, and thus reduces the vehicle manufacturing cost.

[0014] In one embodiment, the detection device includes: a coil array; the coil array includes one or more detection coils; each of the charging devices is provided with at least one of the detection coils, and each detection coil in the coil array is provided with at least one resonant cavity; wherein the resonant cavity is configured to sense a carrier signal emitted by the carrier transmitting device and determine the identity of the target vehicle where the carrier transmitting device is located.

[0015] In the above implementation process, by setting up a coil array, carrier signals can be received and analyzed, thereby determining the vehicle identification of the target vehicle, realizing automatic identification of the target vehicle, reducing human intervention, improving vehicle identification efficiency, and enhancing user experience.

[0016] In one embodiment, the detection device further includes: a central control unit; the central control unit is connected to various charging devices in the wireless charging area; wherein the central control unit is configured to match the target vehicle with the corresponding charging device according to the target vehicle's identification and a set charging strategy.

[0017] In the above implementation process, by setting up a central control unit, the central control unit can match the target vehicle with the corresponding charging equipment according to the vehicle's identification and the set charging strategy, thereby realizing automatic matching between charging vehicles and charging equipment, improving matching efficiency, and enhancing user experience.

[0018] In one embodiment, one or more of the coil arrays closest to the target vehicle detect carrier signals emitted by a carrier transmitting device in the target vehicle.

[0019] In the above implementation process, by setting one or more coil arrays closest to the target vehicle to detect the carrier signal, the number of coil arrays involved in carrier signal detection can be reduced, thereby reducing the energy consumption of the coil arrays. On the other hand, the transmission distance of the carrier signal can be reduced, thereby reducing carrier signal loss and improving the accuracy of carrier signal detection.

[0020] Secondly, embodiments of this application also provide a wireless charging method, comprising: applying to the wireless charging system described in the first aspect or any embodiment of the first aspect, the method comprising: when a target vehicle enters a wireless charging area, a carrier transmitting device disposed on the target vehicle emits a carrier signal; a detection device in the wireless charging area detects the carrier signal, and matches a corresponding charging device for the target vehicle according to the carrier signal.

[0021] In the above implementation process, a carrier transmitter is installed on the target vehicle and a detection device is installed in the wireless charging area. When the target vehicle enters the wireless charging area, the carrier transmitter emits a carrier signal, and the detection device receives the carrier signal and matches the target vehicle with the corresponding charging device, thereby realizing automatic matching between the charging vehicle and the charging device, improving matching efficiency and enhancing the user experience.

[0022] In one embodiment, the detection device in the wireless charging area detects the carrier signal and matches the target vehicle with a corresponding charging device based on the carrier signal, including: one or more coil arrays in the detection device closest to the target vehicle sense the carrier signal and determine the identity of the target vehicle where the carrier transmitting device that emitted the carrier signal is located; the central control unit in the detection device matches the target vehicle with a corresponding charging device based on the identity and a set charging strategy.

[0023] In the above implementation process, by setting one or more coil arrays closest to the target vehicle to detect the carrier signal, the number of coil arrays involved in carrier signal detection can be reduced, thereby reducing the energy consumption of the coil arrays. On the other hand, the transmission distance of the carrier signal can be reduced, thus reducing carrier signal loss and improving the accuracy of carrier signal detection. Furthermore, matching the target vehicle with appropriate charging equipment based on the vehicle's identification and the set charging strategy enables automatic matching between charging vehicles and charging equipment, improving matching efficiency and enhancing the user experience.

[0024] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A schematic diagram of a wireless charging system provided in an embodiment of this application;

[0027] Figure 2 This is a schematic diagram of the structure of the carrier transmitting device provided in the embodiments of this application;

[0028] Figure 3 This is a schematic diagram of the structure of a carrier transmitting device with an oil switch, capacitive element, and inductive element provided in an embodiment of this application;

[0029] Figure 4 This is a schematic diagram of the signal waveform in the carrier transmitting device provided in the embodiments of this application;

[0030] Figure 5 This is a schematic diagram of the detection device provided in the embodiments of this application;

[0031] Figure 6 This is a schematic diagram of the interaction between various devices in a wireless charging system provided in an embodiment of this application;

[0032] Figure 7 A flowchart of a wireless charging method provided in an embodiment of this application.

[0033] Figure description: 100-carrier transmitting device, 110-signal source, 120-transmitting coil, 130-switch, 140-capacitive element, 150-inductive element, 200-detection device, 300-charging device. Detailed Implementation

[0034] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0035] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this application, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] With the growing demand for electric vehicles, the need for electric vehicle charging infrastructure and wireless charging is increasing. Since there is no physical connection between the charging station and the vehicle, and energy transfer relies on a ground-based transmitting coil and a vehicle-side receiving coil, wireless charging is considered a convenient and safe method for charging electric vehicles. Compared to traditional wired charging, wireless charging technology is contactless, closely aligning with emerging trends such as unmanned charging and autonomous vehicles.

[0037] In traditional wireless charging applications, similar to wired charging, a single vehicle connects to a single charging station for handshake recognition and charging interaction, which limits scalability. To apply wireless charging technology to public charging stations or centralized applications to achieve large-scale automated charging without human intervention, it is necessary to solve the problem of quickly and accurately identifying the matching between wireless charging vehicles and charging stations in multi-vehicle, multi-charging-station scenarios.

[0038] With the application of technology, in the scenario of private charging stations where one charging station access point corresponds to one vehicle station, it is impossible to guarantee accurate connection to the corresponding charging station when multiple vehicles are connected to multiple charging stations, thus preventing the vehicle from entering the subsequent charging process and hindering the development of wireless charging in public scenarios.

[0039] In view of this, this application proposes a wireless charging system, which involves setting up a carrier wave transmitter on the target vehicle and a detection device in the wireless charging area. When the target vehicle enters the wireless charging area, the carrier wave transmitter emits a carrier wave signal, and the detection device receives the carrier wave signal and matches the target vehicle with the corresponding charging device, thereby realizing automatic matching between the charging vehicle and the charging device, improving matching efficiency, and enhancing the user experience.

[0040] To facilitate understanding of this embodiment, a wireless charging system disclosed in this application will first be described in detail.

[0041] like Figure 1 The diagram shown is a schematic of a wireless charging system provided in an embodiment of this application, including a carrier transmitting device 100 and a detection device 200.

[0042] The carrier transmission device 100 is installed on the target vehicle, and the detection device 200 is installed in the wireless charging area.

[0043] The carrier transmitting device 100 here is a device for transmitting carrier signals. The carrier transmitting device 100 can be a standalone device installed on the target vehicle, or it can be a device integrated into a module in the target vehicle. The form of the carrier transmitting device 100 can be selected according to the actual situation.

[0044] In one embodiment, the carrier transmitting device 100 is a high-frequency (e.g., MHz level) resonant carrier transmitting coil 120.

[0045] The detection device 200 described above is a device for receiving and processing carrier signals. The detection device 200 may include one or more transmitting coils 120.

[0046] When a target vehicle enters the wireless charging area, the carrier transmitter 100 is configured to emit a carrier signal, the detector 200 is configured to receive the carrier signal, and the detector matches the target vehicle with the corresponding charging device 300 according to the carrier signal.

[0047] Understandably, when the detection device 200 receives a carrier signal, it can analyze the frequency of the carrier signal and identify the vehicle based on the frequency, thus determining the vehicle's identity. Once the vehicle's identity is determined, it can further match the target vehicle with a corresponding charging device 300 according to a pre-set charging strategy, allowing the target vehicle to charge at the matched charging device 300.

[0048] Optionally, when a target vehicle is detected entering the wireless charging area, the carrier transmitter 100 can be manually controlled to emit a carrier signal, or it can be automatically triggered to emit a carrier signal based on the detection signal. The method by which the carrier transmitter 100 emits a carrier signal can be selected according to the actual situation.

[0049] It should be understood that in scenarios involving multiple vehicles and multiple charging devices 300, when a target vehicle enters the wireless charging area, human intervention is usually required to determine the corresponding charging device 300. This method is inefficient and provides a poor user experience. By setting up a carrier transmitter 100 on the target vehicle and a detection device 200 in the wireless charging area, when the target vehicle enters the wireless charging area, the carrier transmitter 100 emits a carrier signal. After receiving the carrier signal, the detection device 200 analyzes the corresponding frequency and other information of the carrier signal, and determines the identity of the target vehicle based on the analysis results. This allows for the automatic matching of the target vehicle with the charging device 300, improving matching efficiency and enhancing the user experience.

[0050] In the above implementation process, by setting a carrier transmitting device 100 on the target vehicle and a detection device 200 in the wireless charging area, when the target vehicle enters the wireless charging area, the carrier transmitting device 100 emits a carrier signal, and the detection device 200 receives the carrier signal and matches the target vehicle with the corresponding charging device 300, thereby realizing automatic matching between the charging vehicle and the charging device 300, improving matching efficiency and enhancing user experience.

[0051] In one possible implementation, such as Figure 2 As shown, the carrier transmitting device 100 includes a signal source 110 and a transmitting coil 120.

[0052] The first end of the signal source 110 is connected to the first end of the transmitting coil 120, and the second end of the signal source 110 is connected to the second end of the transmitting coil 120.

[0053] The signal source 110 here is configured to generate a carrier signal.

[0054] In one embodiment, the signal source 110 is a high-frequency AC signal source 110, used to generate high-frequency AC signals.

[0055] The aforementioned transmitting coil 120 is configured to emit a carrier signal and form a resonant cavity.

[0056] A resonant cavity is a physical structure that can generate and maintain electromagnetic wave oscillations at a specific frequency within itself. A resonant cavity is a closed or semi-closed space made of conductive or dielectric materials. Electromagnetic waves are reflected multiple times within the cavity to form standing waves, allowing only the frequency (resonant frequency) that meets specific phase conditions to oscillate continuously.

[0057] It should be understood that when the carrier transmitting device 100 needs to transmit a carrier signal, the signal source 110 generates a high-frequency AC signal through a self-excited oscillation circuit and transmits the high-frequency AC signal through the transmitting coil 120.

[0058] In the above implementation, the carrier transmitting device 100 includes a signal source 110 and a transmitting coil 120. The signal source 110 generates a carrier signal, and the transmitting coil 120 emits the carrier signal. This simple structure enables carrier signal transmission, simplifying the structure of the carrier transmitting device 100 and reducing its cost. Furthermore, since the carrier signal emitted by the carrier transmitting device 100 produces almost no radiation, user safety in the wireless charging area is improved.

[0059] In one possible implementation, such as Figure 3 As shown, the carrier transmitting device 100 also includes a switch 130.

[0060] The first end of the signal source 110 is connected to the first end of the switch 130, and the first end of the transmitting coil 120 is connected to the second end of the switch 130.

[0061] The switch 130 here is configured to generate a modulated waveform at a specific frequency, which is used to modulate a carrier signal to generate a waveform signal. The transmitting coil 120 is configured to emit this waveform signal.

[0062] It should be understood that switch 130 can be used to control an external DC source, thereby periodically replenishing the energy loss of signal source 110. Additionally, switch 130 can be periodically switched on and off to generate a modulated waveform.

[0063] The modulation waveform is used to modulate the carrier signal to obtain the final signal waveform.

[0064] For example, such as Figure 4 As shown, Figure 4 The first waveform shown is the carrier signal generated by the signal source 110, the second waveform is the modulation waveform generated by the switch 130, and the third waveform is the modulated signal waveform.

[0065] Optionally, the switch 130 can be an electronic switch 130, a relay, a manual switch 130, a contactor, etc., and the type of switch 130 can be selected according to the actual situation.

[0066] In the above implementation process, by setting a switch 130 between the signal source 110 and the transmitting coil 120, the switch 130 can be periodically turned on and off to form a modulation waveform, thereby modulating the carrier signal generated by the signal source 110 and improving the anti-interference capability of the signal waveform.

[0067] In one possible implementation, the carrier transmitting device 100 further includes a capacitive element 140 and an inductive element 150; the capacitive element 140 and the inductive element 150 form an LC circuit.

[0068] The first end of the capacitive element 140 and the first end of the inductive element 150 are connected to the second end of the switch 130; the second end of the capacitive element 140 is connected to the second end of the signal source 110 and the second end of the transmitting coil 120; and the second end of the inductive element 150 is connected to the first end of the transmitting coil 120.

[0069] Optionally, the capacitive element 140 can be a capacitor, a capacitive sensor, an equivalent capacitive element 140, etc., and the type of the capacitive element 140 can be selected according to the actual situation. The inductive element 150 can be an inductor, a transformer, a relay, etc., and the type of the inductive element 150 can be selected according to the actual situation.

[0070] The LC circuit here is configured to filter out harmonics in the waveform signal.

[0071] In the above implementation process, by setting an LC circuit in the carrier transmitting device 100 to filter out harmonics in the waveform signal based on the LC circuit, the stability of the waveform signal can be enhanced.

[0072] In one possible implementation, the carrier transmitting device 100 is mounted on the wireless charging module of the target vehicle.

[0073] The wireless charging module here is a module that is already present in the target vehicle, and it is used to wirelessly charge the target vehicle.

[0074] Optionally, the carrier transmitter 100 can be integrated inside the wireless charging module or detachably installed outside the wireless charging module. The configuration of the carrier transmitter 100 can be selected according to the actual situation.

[0075] In the above implementation process, by setting the carrier transmitter 100 on the wireless charging module, there is no need to reserve other installation positions for the carrier transmitter 100 on the vehicle, which can reduce the space occupied by the carrier transmitter 100, reduce the impact of the carrier transmitter 100 on the original structure of the vehicle, and thus reduce the vehicle manufacturing cost.

[0076] In one possible implementation, such as Figure 5 As shown, the detection device 200 includes a coil array.

[0077] The coil array includes one or more detection coils, and each charging device 300 is provided with at least one coil array, and each detection coil in the coil array is provided with at least one resonant cavity.

[0078] The resonant frequency of the resonant cavity here is the self-excited oscillation frequency of the carrier transmitting device 100, which is used to sense the carrier signal emitted by the carrier transmitting device 100.

[0079] The aforementioned coil array is an array structure composed of detection coils arranged in a predetermined order. This coil array is laid on the ground in the wireless charging area, and each detection coil in the coil array is connected to the corresponding charging device 300.

[0080] Optionally, a charging device 300 can be connected to one or more detection coils to form a corresponding coil array. For example, a 4×4 coil array, a 3×3 coil array, etc. The number of detection coils connected to the charging device 300 can be selected according to the actual situation.

[0081] The aforementioned resonant cavity is configured to sense the carrier signal transmitted by the carrier transmitter 100 and determine the identity of the target vehicle where the carrier transmitter 100 is located.

[0082] It should be understood that when the coil array senses the carrier signal transmitted by the carrier transmitting device 100, it further analyzes the carrier signal, restores the modulated wave waveform, analyzes the frequency of the modulated wave, and then determines the vehicle identification of the vehicle where the carrier transmitting device 100 is located.

[0083] In one embodiment, the coil array can be configured with some simple charging strategies. Once the coil array determines the vehicle's identification, it can further match the target vehicle with the corresponding charging device 300 according to the stored charging strategies.

[0084] Optionally, after matching the target vehicle with the corresponding charging equipment 300, the target vehicle can be notified to go to the corresponding charging equipment 300 for charging through broadcast, message, bullet screen, or other means.

[0085] In the above implementation process, by setting up a coil array, carrier signals can be received and analyzed, thereby determining the vehicle identification of the target vehicle, realizing automatic identification of the target vehicle, reducing human intervention, improving vehicle identification efficiency, and enhancing user experience.

[0086] In one possible implementation, the detection device 200 also includes a central control unit.

[0087] The central control unit connects to each charging device 300 in the wireless charging area.

[0088] Understandably, since the coil array is connected to the charging device 300, when the coil array determines the identity of the target vehicle, the coil array can transmit the identified identity to the charging device 300 connected to it, and then transmit it to the central control unit through the charging device 300.

[0089] The central control unit here is configured to match the appropriate charging equipment 300 to the target vehicle based on the target vehicle's identification and the set charging strategy.

[0090] The charging strategy can be one or more pre-set charging strategies. This charging strategy is stored in the memory of the central control unit in advance.

[0091] Optionally, if the charging strategy includes multiple charging strategies, a corresponding priority order can be set for the multiple charging strategies. When matching the corresponding charging equipment 300 to the target vehicle, the corresponding charging strategy can be determined according to the priority order of the charging strategies, and the charging equipment 300 matched with the target vehicle can be determined based on the corresponding charging strategy.

[0092] like Figure 6 As shown, Figure 6 This is a schematic diagram illustrating the interaction between various devices in the wireless charging system of this application embodiment. In this wireless charging system, each charging device 300 is connected to the central control unit via a communication line, and each charging device 300 is equipped with a corresponding coil array. When a target vehicle enters the wireless charging area, the carrier transmitter 100 installed on the target vehicle emits a carrier signal. This carrier signal is recognized by the coil array, and the recognition result is transmitted to the central control unit.

[0093] For example, as shown in 6, Figure 6The diagram shows two target vehicles entering a wireless charging area. The waveform signals emitted by the carrier transmitters 100 on these two target vehicles are 6.5KHz and 7KHz, respectively. When these two target vehicles move above the coil arrays corresponding to any two charging devices 300, the waveform signals are recognized by the corresponding coil arrays, thereby determining the identity of the two target vehicles and matching them with the corresponding charging devices 300.

[0094] In the above implementation process, by setting a central control unit, the central control unit can match the corresponding charging equipment 300 to the target vehicle according to the vehicle's identification and the set charging strategy, so as to realize the automatic matching of charging vehicles and charging equipment 300, improve matching efficiency, and enhance user experience.

[0095] In one possible implementation, one or more coil arrays closest to the target vehicle detect carrier signals emitted by the carrier transmitting device 100 in the target vehicle.

[0096] Understandably, since the wireless charging area includes multiple coil arrays, to ensure that the coil arrays acquire accurate carrier signals while reducing their energy consumption, after the carrier transmitting device 100 emits a carrier signal, the carrier signal can be detected only through one or more coil arrays closest to the target vehicle. This reduces the number of coil arrays involved in carrier signal detection, thereby reducing their energy consumption. Furthermore, detecting the carrier signal through one or more coil arrays closest to the target vehicle reduces the carrier signal transmission distance, thus lowering signal loss and improving detection accuracy.

[0097] In the above implementation process, by setting one or more coil arrays closest to the target vehicle to detect the carrier signal, the number of coil arrays involved in carrier signal detection can be reduced, thereby reducing the energy consumption of the coil arrays. On the other hand, the transmission distance of the carrier signal can be reduced, thereby reducing carrier signal loss and improving the accuracy of carrier signal detection.

[0098] The wireless charging system in this embodiment can be used to execute the various steps of the methods provided in the embodiments of this application. The implementation process of the wireless charging method is described in detail below through several embodiments.

[0099] Please see Figure 7 This is a flowchart of a wireless charging method provided in an embodiment of this application. The following will describe... Figure 7 The specific process shown will be explained in detail.

[0100] In step S201, when the target vehicle enters the wireless charging area, the carrier transmitting device 100 installed on the target vehicle emits a carrier signal.

[0101] The carrier transmitting device 100 can transmit carrier signals based on a trigger signal, at set time intervals, or in real time. The method of transmitting carrier signals by the carrier transmitting device 100 can be selected according to the actual situation.

[0102] In step S202, the detection device 200 in the wireless charging area detects the carrier signal and matches the corresponding charging device 300 to the target vehicle according to the carrier signal.

[0103] It should be understood that after the carrier transmitting device 100 emits a carrier signal, the carrier signal is transmitted in the wireless charging area. After the detection device 200 detects the carrier signal, it analyzes the carrier signal to determine the identity of the target vehicle corresponding to the carrier signal and matches it with the corresponding charging device 300.

[0104] The carrier transmitting device 100 and the detection device 200 communicate via carrier signals to identify the target vehicle and match the target vehicle with the corresponding charging device 300, thereby achieving automatic matching between the charging vehicle and the charging device 300.

[0105] In the above implementation process, by setting a carrier transmitting device 100 on the target vehicle and a detection device 200 in the wireless charging area, when the target vehicle enters the wireless charging area, the carrier transmitting device 100 emits a carrier signal, and the detection device 200 receives the carrier signal and matches the target vehicle with the corresponding charging device 300, thereby realizing automatic matching between the charging vehicle and the charging device 300, improving matching efficiency and enhancing user experience.

[0106] In one possible implementation, step S202 includes: one or more coil arrays in the detection device 200 that are closest to the target vehicle sense a carrier signal and determine the identity of the target vehicle where the carrier transmitting device 100 that emitted the carrier signal is located; the central control unit in the detection device 200 matches the target vehicle with the corresponding charging device 300 according to the identity and the set charging strategy.

[0107] The charging strategy here can be set according to the distance to the charging device 300, or according to the power balance of the charging system where the charging device 300 is located, or according to the charging power requirements of the target vehicle. This charging strategy can be selected according to the actual situation.

[0108] The specific strategy for matching charging devices 300 according to distance can be as follows: after determining the identity of the target vehicle, further determine the current location of the target vehicle, and determine the nearest unoccupied charging device 300 to the current location. The nearest unoccupied charging device 300 to the current location is determined as the corresponding charging device 300 for the target vehicle.

[0109] The specific strategy for matching charging devices 300 according to the power balance of the charging system to which they belong can be as follows: Multiple charging devices 300 in the wireless charging area can be divided into multiple charging systems, and each charging system includes multiple charging devices 300. When matching a charging device 300 to a target vehicle, the power balance of each charging system can be analyzed, and the charging device 300 of the charging system with the worst power balance can be matched to the target vehicle.

[0110] The specific strategy for matching the charging equipment 300 according to the charging power requirements of the target vehicle can be as follows: when there may be vehicles with different charging power available on the market, the corresponding charging equipment 300 can also be set to multiple charging power levels. After identifying the target vehicle, the charging power of the target vehicle can be further determined, and a charging equipment 300 with the corresponding charging power can be matched to the target vehicle.

[0111] The charging strategy described above is only illustrative and can be adjusted according to actual circumstances.

[0112] In the above implementation process, by setting one or more coil arrays closest to the target vehicle to detect the carrier signal, the number of coil arrays involved in carrier signal detection can be reduced, thereby reducing the energy consumption of the coil arrays. On the other hand, the transmission distance of the carrier signal can be reduced, thereby reducing carrier signal loss and improving the accuracy of carrier signal detection. Furthermore, by matching the target vehicle with the appropriate charging equipment 300 based on the vehicle's identification and the set charging strategy, automatic matching between the charging vehicle and the charging equipment 300 can be achieved, improving matching efficiency and enhancing the user experience.

[0113] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can also be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram and / or flowchart, and combinations of blocks in block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

[0114] In addition, the functional modules in the various embodiments of this application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0115] If the aforementioned functions are implemented as software functional modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks. It should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0116] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0117] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A wireless charging system, characterized by, include: Carrier transmitting equipment and detection devices; The carrier transmission device is installed on the target vehicle; The detection device is located in the wireless charging area; When the target vehicle enters the wireless charging area, the carrier transmitting device is configured to emit a carrier signal, the detection device is configured to receive the carrier signal, and match the target vehicle with the corresponding charging device according to the carrier signal. The detection device includes: a coil array; the coil array includes one or more detection coils; Each of the charging devices is provided with at least one of the detection coils, and each detection coil in the coil array is provided with at least one resonant cavity; The resonant cavity is configured to sense the carrier signal emitted by the carrier transmitting device and determine the identity of the target vehicle where the carrier transmitting device is located. The detection device also includes: a central control unit; The central control unit connects to each charging device in the wireless charging area; The central control unit is configured to match the target vehicle with the appropriate charging equipment based on the target vehicle's identification and the set charging strategy.

2. The system of claim 1, wherein, The carrier transmitting device includes: a signal source and a transmitting coil; The first end of the signal source is connected to the first end of the transmitting coil; The second end of the signal source is connected to the second end of the transmitting coil; The signal source is configured to generate a carrier signal, and the transmitting coil is configured to emit the carrier signal.

3. The system of claim 2, wherein, The carrier transmitting device also includes: a switch; The first end of the signal source is connected to the first end of the switch, and the first end of the transmitting coil is connected to the second end of the switch; the switch is configured to form a modulation waveform of a specific frequency. The modulation waveform is used to modulate the carrier signal to generate a waveform signal; the transmitting coil is configured to emit the waveform signal.

4. The system of claim 3, wherein, The carrier transmitting device further includes: a capacitive element and an inductive element; the capacitive element and the inductive element form an LC circuit; The first end of the capacitive element and the first end of the inductive element are connected to the second end of the switch; The second end of the capacitive element is connected to the second end of the signal source and the second end of the transmitting coil; The second end of the inductive element is connected to the first end of the transmitting coil; The LC circuit is configured to filter out harmonics in the waveform signal.

5. The system according to any one of claims 1-4, characterized in that, The carrier transmission device is installed on the wireless charging module of the target vehicle.

6. The system of claim 1, wherein, in, One or more of the coil arrays closest to the target vehicle detect carrier signals emitted by the carrier transmitting device in the target vehicle.

7. A wireless charging method, comprising: The method, applied to the wireless charging system according to any one of claims 1-6, comprises: When the target vehicle enters the wireless charging area, the carrier transmitting device installed on the target vehicle emits a carrier signal. The detection device in the wireless charging area detects the carrier signal and matches the target vehicle with the corresponding charging equipment based on the carrier signal.

8. The method of claim 7, wherein, The detection device in the wireless charging area detects the carrier signal and matches the target vehicle with the appropriate charging equipment based on the carrier signal, including: The one or more coil arrays closest to the target vehicle in the detection device sense the carrier signal and determine the identity of the target vehicle where the carrier transmitting device is located; The central control unit in the detection device matches the target vehicle with a corresponding charging device according to the identity and a set charging strategy.

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