Wireless charging system and method

Abstract

The invention provides a wireless charging system and method, and the system comprises a carrier transmitting device and a detection device. The carrier transmitting equipment is arranged on a target vehicle; the detection device is arranged in a wireless charging area; wherein under the condition that the target vehicle enters the wireless charging area, the carrier transmitting equipment is configured to transmit a carrier signal, and the detection device is configured to receive the carrier signal and match corresponding charging equipment for the target vehicle according to the carrier signal. According to the embodiment of the invention, the carrier transmitting device is arranged on the target vehicle, the detection device is arranged in the wireless charging area, under the condition that the target vehicle enters the wireless charging area, the carrier transmitting device transmits the carrier signal, and the detection device receives the carrier signal and matches the corresponding charging device for the target vehicle; automatic matching of the charging vehicle and the charging equipment is realized, the matching efficiency is improved, and the user experience is enhanced.

Description

Technical Field

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

[0002] Amid the rapid development of new energy vehicles and smart charging technologies, multi-to-multi charging scenarios (i.e., a single ground-based charging station must accommodate multiple vehicles of different models or users) have become the mainstream layout model for public charging facilities. However, this scenario currently faces significant technical bottlenecks: ground-based charging stations generally lack the ability to automatically identify vehicle identities or charging requirements, relying instead on manual operations (such as scanning QR codes for binding, entering vehicle information, or manually selecting a charging mode) to match vehicles with charging stations. This process not only leads to low recognition efficiency (especially during peak hours, which can easily lead to queues), but also increases operational complexity and the probability of error due to human intervention, significantly reducing the user experience. Summary of the Invention

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

[0004] In a first aspect, an embodiment of the present application provides a wireless charging system, comprising: a carrier transmitting device and a detection device; the carrier transmitting device is arranged on a target vehicle; the detection device is arranged 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 the corresponding charging device for the target vehicle according to the carrier signal.

[0005] In the above implementation process, by setting a carrier transmitting device on the target vehicle and a detection device in the wireless charging area, when the target vehicle enters the wireless charging area, the carrier transmitting device sends a carrier signal, the detection device receives the carrier signal and matches the corresponding charging device for the target vehicle, thereby realizing automatic matching of the charging vehicle and the charging device, improving matching efficiency, and enhancing 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, the carrier transmitter includes a signal source and a transmitting coil. The signal source is used to generate a carrier signal, and the transmitting coil is used to transmit the carrier signal. This allows for carrier signal transmission using a simple structure, thereby simplifying the structure of the carrier transmitter and reducing the cost of the carrier transmitter. Furthermore, because the carrier signal emitted by the carrier transmitter generates virtually no radiation, user safety in the wireless charging area is improved.

[0008] In one embodiment, the carrier transmitting device further 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 modulated waveform of a specific frequency; wherein the modulated 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, a modulation waveform can be formed by controlling the periodic on and off of the switch, thereby modulating the carrier signal generated by the signal source and improving the anti-interference ability 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; 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; wherein the LC circuit is configured to filter out harmonics in the waveform signal.

[0011] In the above implementation process, by providing an LC circuit in the carrier transmitting device and filtering 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 provided on a wireless charging module of the target vehicle.

[0013] In the above implementation process, by setting the carrier transmitter device on the wireless charging module, there is no need to reserve other installation locations for the carrier transmitter device on the vehicle, which can reduce the space occupied by the carrier transmitter device and reduce the impact of the carrier transmitter device on the original structure of the vehicle, thereby reducing 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 charging device is provided with at least one detection coil, and each detection coil in the coil array is provided with at least one resonant cavity; wherein 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.

[0015] In the above implementation process, by setting up a coil array, the carrier signal can be received and analyzed, and the vehicle identity of the target vehicle can be determined, thereby realizing automatic identification of the target vehicle, reducing human participation, 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 each charging device in the wireless charging area; wherein the central control unit is configured to match the corresponding charging device for the target vehicle according to the identity identification of the target vehicle and the set charging strategy.

[0017] In the above implementation process, by setting up a central control unit, the central control unit can match the corresponding charging equipment for the target vehicle according to the vehicle's identity and set charging strategy, realize automatic matching of the charging vehicle and the charging equipment, improve matching efficiency, and enhance user experience.

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

[0019] In this implementation, by positioning 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 coil array energy consumption. Furthermore, the carrier signal transmission distance can be shortened, thereby reducing carrier signal loss and improving carrier signal detection accuracy.

[0020] In a second aspect, an embodiment of the present application further provides a wireless charging method, including: a wireless charging system applied to the first aspect, or any embodiment of the first aspect, the method including: when a target vehicle enters a wireless charging area, a carrier transmitting device provided on the target vehicle sends 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, by setting a carrier transmitting device on the target vehicle and a detection device in the wireless charging area, when the target vehicle enters the wireless charging area, the carrier transmitting device sends a carrier signal, the detection device receives the carrier signal and matches the corresponding charging device for the target vehicle, thereby realizing automatic matching of the charging vehicle and the charging device, improving matching efficiency, and enhancing user experience.

[0022] In one embodiment, the detection device in the wireless charging area detects the carrier signal and matches the corresponding charging device for the target vehicle 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 sends the carrier signal is located; the central control unit in the detection device matches the corresponding charging device for the target vehicle based on the identity and the set charging strategy.

[0023] In the above implementation, 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 coil array energy consumption. Furthermore, the carrier signal transmission distance can be shortened, thereby reducing carrier signal loss and improving carrier signal detection accuracy. Furthermore, by matching the target vehicle with the appropriate charging device based on the vehicle's identification and the set charging strategy, automatic matching between the charging vehicle and the charging device can be achieved, improving matching efficiency and enhancing the user experience.

[0024] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the following embodiments are given in conjunction with the accompanying drawings for detailed description as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

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

[0027] Figure 2 A schematic diagram of the structure of a carrier transmission device provided in an embodiment of the present application;

[0028] Figure 3 A schematic structural diagram of a carrier transmission device provided with an oil switch, a capacitive element, and an inductive element according to an embodiment of the present application;

[0029] Figure 4 A schematic diagram of a signal waveform in a carrier transmission device provided in an embodiment of the present application;

[0030] Figure 5 A schematic diagram of the structure of a detection device provided in an embodiment of the present application;

[0031] Figure 6 A schematic diagram of the interaction between various devices in the wireless charging system provided in an embodiment of the present application;

[0032] Figure 7 Flowchart of the wireless charging method provided in an embodiment of the present application.

[0033] Description of the drawings: 100 - carrier transmitter, 110 - signal source, 120 - transmitter coil, 130 - switch, 140 - capacitive element, 150 - inductive element, 200 - detection device, 300 - charging device. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings in the embodiments of the present application.

[0035] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0036] As demand for electric vehicles grows, there's a growing need for EV charging infrastructure and the use of wireless charging. Because there's no physical connection between the charging station and the vehicle, wireless charging relies on energy transfer between a ground-based transmitting coil and a receiving coil on the vehicle. Compared to traditional wired charging, wireless charging technology offers contactless charging, aligning closely with emerging trends such as unmanned charging and driverless vehicles.

[0037] Traditional wireless charging applications, like wired charging, rely on a single vehicle-to-pile handshake for identification and charging interaction, which lacks scalability. If wireless charging technology is to be applied to public charging piles or centralized applications, achieving large-scale, unattended automatic charging, it is necessary to solve the problem of quickly and accurately identifying the matching of wireless charging vehicles and wireless charging piles in multi-vehicle-to-multi-pile scenarios.

[0038] With the application of technology, the private charging pile scenario where one pile-end access point corresponds to one vehicle-end station cannot guarantee that the corresponding pile end can be accurately connected when multiple vehicles are using multiple piles, and thus cannot enter the subsequent charging process, which restricts the development of wireless charging in public scenarios.

[0039] In view of this, the present application proposes a wireless charging system, which sets a carrier 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 transmitter sends a carrier signal, and the detection device receives the carrier signal and matches the corresponding charging device for the target vehicle, thereby realizing automatic matching of the charging vehicle and the charging device, improving matching efficiency, and enhancing user experience.

[0040] To facilitate understanding of this embodiment, a wireless charging system disclosed in an embodiment of the present application is first introduced in detail.

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

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

[0043] The carrier transmitter 100 is a device for transmitting a carrier signal. The carrier transmitter 100 may be a standalone device installed on the target vehicle or integrated into a module in the target vehicle. The form of the carrier transmitter 100 may be selected based on actual conditions.

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

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

[0046] In which, when the target vehicle enters the wireless charging area, the carrier transmitting device 100 is configured to send a carrier signal, the detection device 200 is configured to receive the carrier signal, and match the corresponding charging device 300 for the target vehicle according to the carrier signal.

[0047] It is understood that upon receiving the carrier signal, the detection device 200 can analyze the frequency of the carrier signal and identify the vehicle based on the frequency of the carrier signal to determine the vehicle's identity. Once the vehicle's identity is determined, the target vehicle can be matched with a corresponding charging device 300 based on a pre-set charging strategy, allowing the target vehicle to proceed to the matched charging device 300 for charging.

[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 the carrier transmitter 100 can be automatically triggered to emit a carrier signal based on the detection signal. The method of emitting a carrier signal by the carrier transmitter 100 can be selected according to actual conditions.

[0049] It should be understood that in a scenario where multiple vehicles are connected to multiple charging devices 300, when a target vehicle enters a wireless charging area, human intervention is usually required to determine the charging device 300 corresponding to the target vehicle. This approach is inefficient and provides a poor user experience. By installing 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 frequency and other information of the carrier signal, and determines the identity of the target vehicle based on the analysis results, and then matches the target vehicle with the corresponding charging device 300, achieving automatic matching between the charging vehicle and 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 setting a detection device 200 in the wireless charging area, when the target vehicle enters the wireless charging area, the carrier transmitting device 100 sends a carrier signal, and the detection device 200 receives the carrier signal and matches the corresponding charging device 300 for the target vehicle, thereby realizing automatic matching of the charging vehicle and the charging device 300, improving matching efficiency, and enhancing user experience.

[0051] In one possible implementation, 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] Here, the signal source 110 is configured to generate a carrier signal.

[0054] In one embodiment, the signal source 110 is a high-frequency AC signal source 110 for generating a high-frequency AC signal.

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

[0056] A resonant cavity is a physical structure capable of generating and sustaining electromagnetic wave oscillations at a specific frequency. A resonant cavity is a closed or semi-enclosed space made of conductive or dielectric materials. Electromagnetic waves are reflected multiple times within the cavity, forming standing waves that only allow frequencies (resonant frequencies) that meet specific phase conditions to oscillate continuously.

[0057] It should be understood that when the carrier transmitting device 100 needs to send out 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, carrier transmitter 100 includes a signal source 110 and a transmitting coil 120. Signal source 110 is used to generate a carrier signal, and transmitting coil 120 is used to transmit the carrier signal. This allows for carrier signal transmission using a simple structure, simplifying the structure of carrier transmitter 100 and reducing the cost of carrier transmitter 100. Furthermore, because the carrier signal emitted by carrier transmitter 100 generates virtually no radiation, user safety in the wireless charging area is enhanced.

[0059] In one possible implementation, Figure 3 As shown, the carrier transmitting device 100 further 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 is configured to form a modulation waveform of a specific frequency, which is used to modulate the carrier signal to generate a waveform signal. The transmitting coil 120 is configured to emit the waveform signal.

[0062] It should be understood that the switch 130 can be used to control an external DC source to periodically replenish the energy loss of the signal source 110. In addition, the switch 130 can be periodically turned on and off to form a modulated waveform.

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

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

[0065] Optionally, the switch 130 may be an electronic switch 130 , a relay, a manual switch 130 , a contactor, etc. The type of the switch 130 may be selected according to actual conditions.

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

[0067] In a 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 may be a capacitor, a capacitive sensor, an equivalent capacitive element 140, etc. The type of the capacitive element 140 may be selected according to actual conditions. The inductive element 150 may be an inductor, a transformer, a relay, etc. The type of the inductive element 150 may be selected according to actual conditions.

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

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

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

[0073] The wireless charging module here is a module originally provided by the target vehicle, and the wireless charging module is used for wireless charging of the target vehicle.

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

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

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

[0077] The coil array includes one or more detection coils, 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 , and is used to sense the carrier signal emitted by the carrier transmitting device 100 .

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

[0080] Optionally, one charging device 300 may be connected to one or more detection coils to form a corresponding coil array, such as a 4×4 coil array or a 3×3 coil array. The number of detection coils connected to the charging device 300 may be selected based on actual conditions.

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

[0082] It should be understood that when the coil array senses the carrier signal emitted by the carrier transmitter 100, it further analyzes the carrier signal, restores the modulated wave waveform, and analyzes the frequency of the modulated wave, thereby determining the vehicle identity of the vehicle where the carrier transmitter 100 is located.

[0083] In one embodiment, some simple charging strategies may be set in the coil array. When the coil array determines the vehicle identity of the vehicle, the corresponding charging device 300 may be further matched to the target vehicle according to the stored charging strategy.

[0084] Optionally, after matching the target vehicle with the corresponding charging device 300, the target vehicle can be notified to go to the corresponding charging device 300 for charging through broadcasting, information, barrage, etc.

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

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

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

[0088] It can be understood that 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 thereto, and transmit it to the central control unit through the charging device 300.

[0089] The central control unit here is configured to match the target vehicle with a corresponding charging device 300 according to the identity of the target vehicle and the set charging strategy.

[0090] The set charging strategy may be one or more charging strategies set in advance and stored in advance in the memory of the central control unit.

[0091] Optionally, if the set charging strategy includes multiple charging strategies, a corresponding priority order can be set for the multiple charging strategies. When matching the corresponding charging device 300 for the target vehicle, the corresponding charging strategy can be determined according to the priority order of the charging strategy, and the charging device 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 a wireless charging system according to an embodiment of the present application. In this wireless charging system, each charging device 300 is connected to a 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, a carrier wave transmitting device 100 mounted on the target vehicle emits a carrier wave signal, which 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 6Figure 2 shows two target vehicles entering the wireless charging area. The carrier transmitters 100 on these two target vehicles emit waveform signals of 6.5 kHz and 7 kHz, 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, and the identities of the two target vehicles are determined, and the corresponding charging devices 300 are matched.

[0094] In the above implementation process, by setting up a central control unit, the central control unit can match the corresponding charging device 300 for the target vehicle according to the vehicle's identity and set charging strategy, thereby realizing automatic matching of the charging vehicle and the charging device 300, improving matching efficiency, and enhancing user experience.

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

[0096] As can be understood, since the wireless charging area includes multiple coil arrays, in order to ensure that the coil arrays accurately acquire the carrier signal while reducing the coil arrays' energy consumption, after the carrier transmitter 100 emits the carrier signal, it can detect the carrier signal only through the one or more coil arrays closest to the target vehicle, reducing the number of coil arrays involved in carrier signal detection and, in turn, reducing coil array energy consumption. Furthermore, detecting the carrier signal by using the one or more coil arrays closest to the target vehicle can shorten the carrier signal's transmission distance, thereby reducing carrier signal loss and improving detection accuracy.

[0097] In this implementation, by positioning 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 coil array energy consumption. Furthermore, the carrier signal transmission distance can be shortened, thereby reducing carrier signal loss and improving carrier signal detection accuracy.

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

[0099] See also Figure 7 , is a flow chart of the wireless charging method provided by the embodiment of the present application. Figure 7 The specific process shown is explained in detail.

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

[0101] The carrier transmitter 100 can transmit the carrier signal according to a trigger signal, according to a set time interval, or in real time. The carrier transmitter 100 can select a method for transmitting the carrier signal according to actual conditions.

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

[0103] It should be understood that after the carrier transmitting device 100 sends out 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, and then determines the identity of the target vehicle corresponding to the carrier signal and matches the corresponding charging device 300.

[0104] The carrier transmitting device 100 and the detecting device 200 exchange information via carrier signals, thereby identifying the target vehicle and matching the corresponding charging device 300 for the target vehicle, 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 setting a detection device 200 in the wireless charging area, when the target vehicle enters the wireless charging area, the carrier transmitting device 100 sends a carrier signal, and the detection device 200 receives the carrier signal and matches the corresponding charging device 300 for the target vehicle, thereby realizing automatic matching of 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 the carrier signal and determine the identity of the target vehicle where the carrier transmitter 100 that sends the carrier signal is located; and the central control unit in the detection device 200 matches the corresponding charging device 300 for the target vehicle based on the identity and the set charging strategy.

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

[0108] Among them, the specific strategy for matching the charging device 300 according to the distance can be: after determining the identity of the target vehicle, further determine the current position of the target vehicle, and determine the unoccupied charging device 300 closest to the current position, and determine the charging device 300 closest to the current position and unoccupied as the charging device 300 corresponding to the target vehicle.

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

[0110] A specific strategy for matching charging equipment 300 to the target vehicle's charging power requirements can be: If vehicles with different charging powers are available on the market, the corresponding charging equipment 300 can also be configured with multiple charging powers. After determining the target vehicle's identity, the target vehicle's charging power can be further determined, and a charging equipment 300 with the corresponding charging power can be matched to the target vehicle.

[0111] The above-mentioned setting of charging strategy is only for illustration and can be adjusted according to actual conditions.

[0112] In the above implementation, 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 coil array energy consumption. Furthermore, the carrier signal transmission distance can be shortened, thereby reducing carrier signal loss and improving carrier signal detection accuracy. Furthermore, by matching the target vehicle with the corresponding charging device 300 based on the vehicle's identity and the set charging strategy, automatic matching between the charging vehicle and the charging device 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 devices and methods can also be implemented in other ways. The device embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architectures, functions and operations of the devices, methods and computer program products according to the multiple embodiments of the present application. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, program segment or a part of the code contains one or more executable instructions for implementing the specified logical functions. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or can be implemented using a combination of dedicated hardware and computer instructions.

[0114] In addition, the functional modules in each embodiment of the present 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 functions are implemented in the form of software function 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 the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk. It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0116] The foregoing description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures.

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

Claims

1. A wireless charging system, characterized in that: include: Carrier transmission equipment and detection devices; The carrier wave transmitting device is arranged on the target vehicle; The detection device is arranged in the wireless charging area; Wherein, when the target vehicle enters the wireless charging area, the carrier transmitting device is configured to send a carrier signal, the detection device is configured to receive the carrier signal, and match the corresponding charging device for the target vehicle according to the carrier signal.

2. The system according to 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 according to claim 2, characterized in that The carrier transmitting device further 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 modulated waveform of a specific frequency; 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.

4. The system according to claim 3, characterized in that The carrier transmitting device further comprises: 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; Wherein, the LC circuit is configured to filter out harmonics in the waveform signal.

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

6. The system according to claim 1, wherein: The detection device comprises: a coil array; the coil array comprises one or more detection coils; Each of the charging devices is provided with at least one detection coil, 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 transmitted by the carrier transmitting device and determine the identity of the target vehicle where the carrier transmitting device is located.

7. The system according to claim 6, characterized in that The detection device further comprises: a central control unit; The central control unit is connected to each charging device in the wireless charging area; The central control unit is configured to match the target vehicle with a corresponding charging device according to the identity of the target vehicle and the set charging strategy.

8. The system according to claim 6, wherein: in, The one or more coil arrays closest to the target vehicle detect the carrier signal emitted by the carrier transmitting device in the target vehicle.

9. A wireless charging method, characterized in that: Applied to the wireless charging system according to any one of claims 1 to 8, the method comprising: When a target vehicle enters the wireless charging area, a carrier transmitting device provided on the target vehicle sends a carrier signal; The detection device in the wireless charging area detects the carrier signal and matches the target vehicle with a corresponding charging device according to the carrier signal.

10. The method according to claim 9, characterized in that The detection device in the wireless charging area detects the carrier signal and matches the target vehicle with a corresponding charging device according to 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 emits the carrier signal is located; The central control unit in the detection device matches the target vehicle with a corresponding charging device according to the identity identifier and the set charging strategy.

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