Wireless charging method and apparatus, vehicle, and computer-readable storage medium

Abstract

The embodiments of the present application relate to the technical field of automotive electronics and electrical systems, and provide a wireless charging method and apparatus, a vehicle, and a computer-readable storage medium. The present application allows for foreign object detection to be performed during wireless charging of a device to be charged by a wireless charging apparatus of a vehicle, wherein the foreign object comprises a near field communication card, the near field communication card is provided with a built-in metal identifier, and an area of the metal identifier is greater than or equal to an effective recognition area for foreign object detection; and when the foreign object is detected, wireless charging of the device to be charged is suspended. The present application allows for quick and effective recognition of a near field communication card by means of foreign object detection in a wireless charging process, so as to suspend charging in a timely manner and thereby prevent the problem of localized overheating in near field communication cards causing card deformation or burning.

Description

Wireless charging methods, devices, vehicles, and computer-readable storage media

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese application No. 202510019426X, filed on January 6, 2025, the entire contents of which are incorporated herein by reference for all purposes. Technical Field

[0003] This application relates to the field of automotive electronics and electrical technology, and more specifically, to a wireless charging method, device, vehicle, and computer-readable storage medium. Background Technology

[0004] With the continuous development of intelligent connected vehicle technology, automotive electronic and electrical systems are becoming increasingly complex, with richer functions and higher demands for intelligent user experience. Currently, intelligent connected vehicles commonly feature Near Field Communication (NFC) card keys and in-vehicle wireless charging for mobile phones. Typically, both the in-vehicle wireless charging device and the NFC card reader are located in front of the car's center console. Integrating the NFC card reader into the in-vehicle wireless charging device can significantly reduce the Bill of Materials (BOM) cost and save space in the front of the car. Therefore, in-vehicle wireless charging devices with integrated NFC functionality have become the mainstream design solution in the current automotive industry.

[0005] However, integrating NFC functionality into wireless charging devices currently presents a drawback: the wireless charger may accidentally burn out the NFC card. Specifically, while the wireless charger emits a changing magnetic field to inductively charge the device (e.g., a mobile phone), if an NFC card is placed under the phone at this time, the NFC chip may generate an induced current, leading to overheating, deformation, or even burning out. Such incidents can seriously impact driving safety and user experience.

[0006] Currently, the commonly used card protection strategy in the industry is to perform an NFC communication handshake before wirelessly charging the device to be charged. If the NFC card reader can successfully handshake with the NFC card, the wireless charging function of the mobile phone is turned off to prevent card burning. However, this card protection strategy has the following problems: (1) the card reading error rate is high, and there are cases where NFC cards cannot be read; (2) once charging starts, the NFC card can no longer be detected, which poses a significant risk. Specifically, after charging is started, due to the large energy of the wireless charging signal, the NFC handshake to identify the NFC card often fails to recognize the NFC card due to the small handshake signal. That is, if an NFC card is inserted between the wireless charging device and the device to be charged or into the mobile phone during the wireless charging process, the card cannot be recognized, which will lead to NFC card burning. Summary of the Invention

[0007] This application provides a wireless charging method, apparatus, vehicle, and computer-readable storage medium to solve the aforementioned technical problems.

[0008] In a first aspect, embodiments of this application provide a wireless charging method, which includes: detecting foreign objects during the wireless charging process of a device to be charged by a vehicle's wireless charging device, wherein the foreign object includes a near-field communication card, the near-field communication card has a built-in metal identifier, and the area of ​​the metal identifier is greater than or equal to the effective identification area of ​​the foreign object detection; and pausing the wireless charging of the device to be charged when a foreign object is detected.

[0009] Secondly, embodiments of this application provide a wireless charging device, which includes: a foreign object detection module for detecting foreign objects during the wireless charging process of a vehicle's wireless charging device for a device to be charged, wherein the foreign object includes a near-field communication card, the near-field communication card has a built-in metal identifier, and the area of ​​the metal identifier is greater than or equal to the effective identification area of ​​the foreign object detection; and a wireless charging module for pausing wireless charging of the device to be charged when a foreign object is detected.

[0010] Thirdly, embodiments of this application provide a vehicle, which includes: a wireless charging device, a memory, and a processor. The memory stores an application program that is used to execute the method provided in embodiments of this application when invoked by the processor.

[0011] Fourthly, embodiments of this application provide a computer-readable storage medium storing program code, which, when invoked by a processor, causes the processor to execute the method provided in embodiments of this application.

[0012] The wireless charging method provided in this application has the following technical effects:

[0013] (1) Current card protection strategies involve NFC card detection, which is easily interfered with by the coil of the device being charged, etc., which can easily lead to NFC card detection errors. The device may mistakenly assume that there is no NFC card and directly enter the charging state, resulting in the card being burned. This application adds a metal detector to the NFC card, which can quickly and effectively identify foreign objects based on foreign object detection. When a foreign object (including an NFC card) is detected, wireless charging is immediately paused. The success rate of foreign object detection is extremely high, and card detection errors will not occur. This can improve the response speed and success rate of card protection, protect the safety of wireless charging, and avoid the accidental burning of NFC cards.

[0014] (2) Current card protection strategies involve placing the device to be charged on the wireless charging device and then, after the wireless charging process has begun, arbitrarily placing the NFC card on the top surface of the device or even inserting it into the bottom surface. Because the NFC card is difficult to detect during charging, it is highly susceptible to burning out. This application changes the structure of the near-field communication card by adding a metal identifier with an area greater than or equal to the effective identification area for anomaly detection. This allows for rapid and effective identification of the near-field communication card during wireless charging via foreign object detection, enabling timely suspension of charging and preventing localized overheating that could lead to card deformation or burning. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments and drawings obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] Figure 1 shows a schematic flowchart of a wireless charging method provided in an embodiment of this application;

[0017] Figure 2 shows a schematic diagram of the structure of the near-field communication card provided in an embodiment of this application;

[0018] Figure 3 shows a flowchart of a wireless charging method provided in another embodiment of this application;

[0019] Figure 4 shows a partial flowchart of a wireless charging method provided in another embodiment of this application;

[0020] Figure 5 shows a partial flowchart of a wireless charging method provided in another embodiment of this application;

[0021] Figure 6 shows a schematic diagram of the structure of the wireless charging device provided in an embodiment of this application;

[0022] Figure 7 shows a schematic diagram of the vehicle structure provided in an embodiment of this application. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0024] The wireless charging method provided in this application can be applied to wireless charging devices for vehicles, primarily to prevent the wireless charging device from accidentally burning out NFC cards during operation. The wireless charging device integrates NFC functionality; that is, it integrates an NFC card reader. Vehicles can include, but are not limited to, gasoline vehicles or new energy vehicles. New energy vehicles can include electric vehicles, which can include, but are not limited to, pure electric vehicles, hybrid electric vehicles, or fuel cell vehicles.

[0025] Please refer to Figure 1, which shows a schematic flowchart of a wireless charging method provided in an embodiment of this application. As shown in Figure 1, the wireless charging method may include steps S110 to S120.

[0026] Step S110: Foreign object detection is performed during the wireless charging process of the vehicle's wireless charging device for the device to be charged. The foreign object includes a near-field communication card, which has a built-in metal detector. The area of ​​the metal detector is greater than or equal to the effective detection area of ​​the foreign object.

[0027] Both the wireless charging device and the device to be charged have wireless charging capabilities. When the device to be charged is placed on the wireless charging device, energy exchange occurs through the charging coils of the device and the device, enabling the wireless charging device to wirelessly charge the device. The device to be charged can include, but is not limited to, mobile phones, tablets, smartwatches, etc.

[0028] The near-field communication card refers to a physical NFC card. Please refer to Figure 2, which shows a schematic diagram of the structure of the near-field communication card provided in this embodiment. As shown in Figure 2, the near-field communication card (i.e., NFC card) 1 in this embodiment has a built-in metal detector 11 and an NFC chip 12. The metal detector 11 is used for foreign object detection, and the NFC chip is used to process NFC-related control logic. The area of ​​the metal detector is greater than or equal to the effective recognition area for foreign object detection. Furthermore, the area of ​​the metal detector is related to the vehicle calibration. If the accuracy requirement for vehicle calibration is not high, the area of ​​the metal detector can be set smaller; if the accuracy requirement for vehicle calibration is high, the area of ​​the metal detector can be set larger. For example, the area of ​​the metal detector can be set to the area of ​​a one-yuan coin.

[0029] Foreign Object Detector (FOD) detects the presence of a device to be charged or a metallic foreign object by measuring its energy value (Q value) or power. The energy values ​​of the device to be charged and the metallic foreign object differ; the energy value of the metallic foreign object is greater than that of the device to be charged (e.g., a mobile phone). For example, the charging area can be scanned to obtain its current energy value. This energy value is then compared to the energy value range corresponding to a metallic foreign object to determine its presence. If the obtained energy value falls within the range corresponding to a metallic foreign object, then a foreign object has been detected, which could be an NFC card or other metallic object. If the obtained energy value does not fall within the range corresponding to a metallic foreign object, then no foreign object has been detected.

[0030] Step S120: When a foreign object is detected, wireless charging of the device to be charged is paused.

[0031] The foreign object in step S120 can include an NFC card or other metallic foreign objects. During the wireless charging process, if a user places an NFC card or other metallic foreign object on the wireless charging device or the device being charged, the foreign object detection system can identify it, and the wireless charging device will immediately switch from wireless charging to a foreign object detection alarm state, stopping charging. This application adds a metallic object with an area greater than or equal to the effective recognition area of ​​the foreign object detection to the NFC card, enabling the NFC card to be detected by foreign object detection. This allows foreign object detection to replace NFC card handshake detection, thus quickly and effectively identifying suspected NFC cards or other metal objects during charging, promptly pausing charging, protecting wireless charging safety, and preventing the NFC card from being accidentally burned.

[0032] Steps S110 to S120 have the following technical effects:

[0033] (1) Current card protection strategies involve NFC card detection, which is easily interfered with by the coil of the device being charged, etc., which can easily lead to NFC card detection errors. The device may mistakenly assume that there is no NFC card and directly enter the charging state, resulting in the card being burned. This application adds a metal detector to the NFC card, which can quickly and effectively identify foreign objects based on foreign object detection. When a foreign object (including an NFC card) is detected, wireless charging is immediately paused. The success rate of foreign object detection is extremely high, and card detection errors will not occur. This can improve the response speed and success rate of card protection, protect the safety of wireless charging, and avoid the accidental burning of NFC cards.

[0034] (2) Current card protection strategies involve placing the device to be charged on the wireless charging device and then, after the wireless charging process has begun, arbitrarily placing the NFC card on the top surface of the device or even inserting it into the bottom surface. Because the NFC card is difficult to detect during charging, it is highly susceptible to burning out. This application changes the structure of the near-field communication card by adding a metal identifier with an area greater than or equal to the effective identification area for anomaly detection. This allows for rapid and effective identification of the near-field communication card during wireless charging via foreign object detection, enabling timely suspension of charging and preventing localized overheating that could lead to card deformation or burning.

[0035] Please refer to Figure 3, which shows a flowchart of a wireless charging method provided in another embodiment of this application. As shown in Figure 3, the wireless charging method may include steps S210 to S290.

[0036] Step S210: When the wireless charging device is in standby mode, detect whether a device to be charged has been placed on the wireless charging device.

[0037] When a wireless charging device is in standby mode, if a user places a device to be charged on it, it's highly likely the user intends to wirelessly charge the device. However, if there are NFC cards or other metallic foreign objects between the wireless charging device and the device, or on the surface of the device, wireless charging may pose a safety hazard, potentially damaging the physical NFC card. Therefore, to avoid these issues, foreign object detection can be performed before the device is placed on the wireless charging device, providing fallback protection for both the wireless charging process and the card itself.

[0038] Step S220: When a device to be charged is placed on the wireless charging device, foreign object detection is performed.

[0039] When the wireless charging device is in standby mode and no foreign object is detected, it can be confirmed that the user has only placed the device to be charged and no NFC card or other metal foreign objects. Wireless charging under these conditions ensures safety. Therefore, when the wireless charging device is in standby mode and no foreign object is detected, it will switch from standby mode to charging mode, entering normal charging mode and beginning wireless charging of the device to be charged, while continuously detecting foreign objects during the charging process. That is, when the wireless charging device is in standby mode and no foreign object is detected, step S230 is entered: wireless charging of the device to be charged begins.

[0040] When the wireless charging device is in standby mode and no foreign object is detected, it can be determined that the user has only placed the device to be charged and has not placed an NFC card or other metal foreign object. Wireless charging can be performed safely in this case, and the device to be charged can continue to be wirelessly charged. That is, if a foreign object is detected while the wireless charging device is in standby mode, proceed to step S260: Do not wirelessly charge the device to be charged.

[0041] Step S230: Wirelessly charge the device to be charged.

[0042] Wireless charging of the device to be charged is performed when the wireless charging device is in standby mode and no foreign object is detected, ensuring wireless charging safety and preventing damage to the NFC card. Upon initiation of wireless charging, proceed to step S240: Foreign object detection is performed on the vehicle's wireless charging device during the wireless charging process.

[0043] Step S240: Foreign object detection is performed during the wireless charging process of the vehicle's wireless charging device for the device to be charged. The foreign object includes a near-field communication card, which has a built-in metal detector. The area of ​​the metal detector is greater than or equal to the effective detection area of ​​the foreign object.

[0044] When no foreign object is detected while the wireless charging device is charging, it can be determined that the user has not placed an NFC card or other metal foreign object on the upper or lower surface of the device to be charged during the wireless charging process. At this time, wireless charging can ensure wireless charging safety, and the device to be charged can continue to be wirelessly charged, that is, continue to execute step S230.

[0045] When a foreign object is detected while the wireless charging device is charging, it can be determined that the user has placed an NFC card or other metal foreign object on the upper or lower surface of the device to be charged during the wireless charging process. At this time, wireless charging poses a safety hazard and the risk of burning the NFC card. At this time, the process can proceed to step S250: pause wireless charging of the device to be charged.

[0046] Step S250: Pause wireless charging of the device to be charged.

[0047] When a foreign object is detected while the wireless charging device is charging, the device will immediately switch to foreign object detection mode and pause wireless charging. This application uses a foreign object detection alarm as the primary protection method, which has a very high success rate.

[0048] After detecting a foreign object and pausing wireless charging, the wireless charging device enters an abnormal card detection state. In this state, it detects whether the foreign object is a near-field communication card or a metallic object, thereby performing NFC card identification and card protection. That is, after step S250, it proceeds to step S270: detecting whether the foreign object is a near-field communication card or a metallic object.

[0049] Step S260: Do not wirelessly charge the device to be charged.

[0050] When a foreign object is detected while the wireless charging device is in standby mode, the device will not be wirelessly charged, ensuring wireless charging safety and preventing the NFC card from being damaged.

[0051] Step S270: Detect the foreign object as a near-field communication card or a metallic foreign object.

[0052] Whether an object is an NFC card can be identified by performing a handshake detection (i.e., card handshake) on the near-field communication (NFC) card. Specifically, the wireless charging device can send a handshake signal to the NFC card, causing the NFC card to initiate a handshake with the wireless charging device upon receiving the signal. That is, the wireless charging device can send a card reading command to an NFC device (such as an NFC card or a device with NFC functionality to be charged). When the NFC device receives the card reading command, it responds and sends an acknowledgment signal. Then, the wireless charging device reads the NFC device's Identity Document (ID) and device information, completing one handshake detection process.

[0053] When the near-field communication (NFC) card and the wireless charging device successfully handshake, it is determined that the foreign object is an NFC card. At this time, the wireless charging device enters NFC card protection mode, stops wireless charging, and issues an NFC card alarm. The wireless charging device will not resume charging until the user removes the NFC card and places it back into the device to be charged. That is, when the foreign object is an NFC card, step S280 is executed: an NFC card alarm is issued to prompt the user to remove the NFC card.

[0054] When the near-field communication card and the wireless charging device fail to handshake, and the foreign object is determined to be a metal object, a metal object alarm can be triggered and charging can be stopped. The wireless charging device will only resume charging after the user removes the metal object and places the device to be charged back in place. That is, when the foreign object is a metal object, step S290 is entered: a metal object alarm is triggered to prompt the user to remove the metal object.

[0055] Currently, the main scenario for NFC card burning is as follows: the NFC card is already placed on the wireless charging device, and the user then places the device to be charged on the NFC card. Because current NFC card protection strategies perform NFC card detection, which is easily interfered with by factors such as the phone's coil, these strategies are prone to NFC detection errors, mistakenly identifying no NFC card and directly entering the charging state, thus causing accidental card burning. The advantage of this application in addressing this scenario is that it uses a foreign object detection alarm as the primary protection. Once triggered in the foreign object detection state, regardless of the presence of an NFC card or other metal foreign object, this application will automatically switch to a stopped charging state. The success rate of foreign object detection is extremely high, preventing detection errors. This method provides maximum protection for NFC cards, ensuring that card burning will not occur due to NFC detection errors.

[0056] In some embodiments, the device to be charged has near-field communication (NFC) functionality. After the wireless charging device sends a handshake signal for the NFC card, the device to be charged can display a NFC card pop-up window upon receiving the handshake signal, prompting the user to select NFC card authentication.

[0057] Foreign Object Detection (FOD) uses energy value (Q value) or power to detect the presence of devices to be charged or metallic foreign objects before wireless charging begins. After wireless charging starts, the energy is high. If NFC card handshake detection is initiated at this time, the handshake signal may be weak and masked by the charging energy signal, preventing the NFC card from being detected even if NFC card protection is activated for handshake detection. However, since wireless charging continuously monitors charging power, if a metallic foreign object is placed inside, it can be identified through NFC power. After charging is paused, NFC handshake detection can then be used to determine whether it is an NFC card or a metallic foreign object, thus achieving card protection and card identification during charging.

[0058] Step S280: Issue a near-field communication card alarm to prompt the user to remove the near-field communication card.

[0059] After the near-field communication card is removed, the device to be charged can be wirelessly charged. That is, after step S280, return to step S230: wirelessly charge the device to be charged.

[0060] Step S290: Issue a metal foreign object alarm to prompt the user to remove the metal foreign object.

[0061] After the metal foreign object is removed, the device to be charged can be wirelessly charged. That is, after step S290, return to step S230: wirelessly charge the device to be charged.

[0062] Steps S210 to S290, compared to steps S110 to S120, have the following additional technical effects: By adding a metal detector to the existing NFC card, a foreign object detection method is used to quickly identify suspected NFC cards, immediately stopping charging and performing NFC card detection. If the detected foreign object is a genuine NFC card, charging remains stopped and an NFC card alarm is triggered, thus protecting the NFC card. If the detected foreign object is another type of metal object, a metal foreign object alarm is issued, fundamentally solving the problem of traditional NFC card protection strategies failing to identify the card during charging, mitigating the risk of card burnout. In other words, this embodiment can cover all user scenarios; that is, it can effectively detect NFC cards before and during charging, promptly pausing wireless charging to effectively protect the NFC card and reduce the risk of accidental burnout.

[0063] Please refer to Figure 4, which shows a partial flowchart of a wireless charging method provided in another embodiment of this application. As shown in Figure 4, in addition to the aforementioned steps, the wireless charging method of this application embodiment may also include steps S310 to S330.

[0064] Step S310: When the wireless charging device is in standby mode, in response to receiving the key authentication request, perform a handshake detection on the near-field communication card.

[0065] When the vehicle is powered on, key authentication is triggered, and the vehicle initiates a key authentication request. In response to this request, the wireless charging device triggers NFC card verification. The wireless charging device then actively sends an NFC card verification handshake signal. If an NFC card is detected, authentication is successful.

[0066] In some embodiments, a device with NFC functionality is placed on the wireless charging device. When the device receives an NFC handshake signal, an NFC pop-up window will appear, prompting the user to select an NFC card for authentication.

[0067] When the wireless charging device and the NFC card successfully handshake, proceed to step S320: control the wireless charging device to remain in standby mode.

[0068] When the wireless charging device and NFC card fail to handshake, proceed to step S330: continue to perform handshake detection on the near field communication card until no more key authentication requests are received.

[0069] Step S320: When the handshake is successful, control the wireless charging device to remain in standby mode.

[0070] Step S330: If the handshake fails, continue to perform handshake detection on the near-field communication card until no more key authentication requests are received.

[0071] This application will continue to perform card checks as long as there is a card check requirement, until the vehicle no longer sends card check requests.

[0072] Steps S310 to S330 have the following technical effects: In current card protection strategies, every time a device to be charged (e.g., a mobile phone) is placed on a wireless charging device, an NFC card detection pop-up window is triggered on the mobile phone. This card detection method aims to confirm that no physical NFC card is placed before charging begins; it is designed solely to protect the physical NFC card and not for vehicle-wide card authentication. This results in frequent NFC pop-ups on the mobile phone, leading to a poor user experience. This application changes the control logic of existing card protection and optimizes the card detection timing: it relies on foreign object detection for card protection identification. Card detection is not performed when the device to be charged is placed on the wireless charging device; NFC card detection is only performed when there is a vehicle-wide card authentication requirement (e.g., when the vehicle is powered on and key authentication is triggered). This card reading timing control strategy avoids frequent and unnecessary card detection, preventing the current card protection strategy from causing frequent pop-ups even when there is no card detection requirement on the mobile phone.

[0073] Please refer to Figure 5, which shows a partial flowchart of a wireless charging method provided in another embodiment of this application. As shown in Figure 5, in addition to the aforementioned steps, the wireless charging method of this application embodiment may also include steps S410 to S430.

[0074] Step S410: During the wireless charging process of the wireless charging device for the device to be charged, in response to receiving the key authentication request, a handshake detection is performed on the near-field communication card.

[0075] During the wireless charging process, if the wireless charging device receives a key authentication request while it is in the charging state, it will switch to the authentication card check state to perform the mobile phone NFC card check handshake.

[0076] When the wireless charging device and the NFC card successfully handshake, proceed to step S420: control the wireless charging device to continue wirelessly charging the device to be charged.

[0077] When the wireless charging device and the NFC card fail to handshake, proceed to step S430: continue to perform handshake detection on the near-field communication card until no more key authentication requests are received.

[0078] Step S420: Upon successful handshake, control the wireless charging device to continue wirelessly charging the device to be charged.

[0079] Step S430: If the handshake fails, continue to perform handshake detection on the near-field communication card until no more key authentication requests are received.

[0080] Steps S410 to S430 have the following technical effects: In current card protection strategies, every time a device to be charged (e.g., a mobile phone) is placed on a wireless charging device, an NFC card detection pop-up window is triggered on the mobile phone. This card detection method aims to confirm that no physical NFC card is placed before charging begins. It is designed solely to protect the physical NFC card, not for vehicle-wide card authentication. This results in frequent NFC pop-ups on the mobile phone, leading to a poor user experience. This application changes the control logic of existing card protection and optimizes the card detection timing: it relies on foreign object detection for card protection identification. When the device to be charged is placed on the wireless charging device, card detection is not performed initially. NFC card detection is only performed when there is a vehicle-wide card authentication requirement (e.g., when the vehicle is powered on and key authentication is triggered). This card reading timing control strategy avoids frequent and unnecessary card detection, preventing the current card protection strategy from causing frequent pop-ups even when there is no card detection requirement on the mobile phone.

[0081] Please refer to Figure 6, which shows a schematic diagram of the wireless charging device provided in this embodiment. As shown in Figure 6, the wireless charging device 100 can be applied to a vehicle. The wireless charging device 100 includes a foreign object detection module 110 and a wireless charging module 120. Specifically: the foreign object detection module 110 is used to detect foreign objects during the wireless charging process of the device to be charged in the vehicle. The foreign object includes a near-field communication card, which has a built-in metal detector. The area of ​​the metal detector is greater than or equal to the effective detection area of ​​the foreign object. The wireless charging module 120 is used to pause the wireless charging of the device to be charged when a foreign object is detected.

[0082] In some embodiments, the foreign object detection module 110 is further configured to detect whether a device to be charged is placed on the wireless charging device when the wireless charging device is in standby mode; and to perform foreign object detection when a device to be charged is placed on the wireless charging device. The wireless charging module 120 is further configured to start wireless charging of the device to be charged when no foreign object is detected; and to stop wireless charging of the device to be charged when a foreign object is detected.

[0083] In some embodiments, the foreign object detection module 110 is further configured to, after detecting a foreign object, detect whether the foreign object is a near-field communication card or a metal foreign object; when the foreign object is a near-field communication card, issue a near-field communication card alarm to prompt the user to remove the near-field communication card; when the foreign object is a metal foreign object, issue a metal foreign object alarm to prompt the user to remove the metal foreign object.

[0084] In some embodiments, the foreign object detection module 110 is further configured to perform handshake detection on the near-field communication card; if the handshake is successful, it determines that the foreign object is a near-field communication card; if the handshake fails, it determines that the foreign object is a metallic foreign object.

[0085] In some embodiments, the foreign object detection module 110 is further configured to send a handshake signal from the near-field communication card, so that the near-field communication card can shake hands with the wireless charging device when it receives the handshake signal.

[0086] In some embodiments, the foreign object detection module 110 is also used to send a handshake signal for the near-field communication card, so that when the device to be charged receives the handshake signal, a near-field communication card pop-up window appears, prompting the user to select near-field communication card authentication.

[0087] In some embodiments, the wireless charging module 120 is also used to wirelessly charge the device to be charged after the near-field communication card or metal foreign object has been removed.

[0088] In some embodiments, the wireless charging device 100 may further include a key authentication module, which is used to perform handshake detection on the near-field communication card in response to receiving a key authentication request when the wireless charging device is in standby mode; control the wireless charging device to maintain standby mode when the handshake is successful; and continue to perform handshake detection on the near-field communication card when the handshake fails until no more key authentication requests are received.

[0089] In some embodiments, the key authentication module is further configured to, in response to receiving a key authentication request, perform a handshake detection on the near-field communication card during the wireless charging process of the wireless charging device wirelessly charging the device to be charged; when the handshake is successful, control the wireless charging device to continue wirelessly charging the device to be charged; and when the handshake fails, continue to perform handshake detection on the near-field communication card until no more key authentication requests are received.

[0090] Those skilled in the art will clearly understand that the apparatus provided in the embodiments of this application can implement the methods provided in the embodiments of this application. The specific working process of the described apparatus and modules can be found in the corresponding processes of the methods in the embodiments of this application, and will not be repeated here.

[0091] In the embodiments provided in this application, the coupling, direct coupling, or communication connection between the modules shown or discussed may be indirect coupling or communication coupling through some interfaces, devices, or modules, and may be electrical, mechanical, or other forms. The embodiments of this application do not impose specific limitations on this.

[0092] Furthermore, the functional modules in the embodiments of this application can be integrated into one processing module, or each module can exist physically separately, or two or more modules can be integrated into one module. The integrated modules described above can be implemented in hardware or as software functional modules.

[0093] Please refer to Figure 7, which shows a schematic diagram of the structure of a vehicle provided in an embodiment of this application. The vehicle 200 may include a wireless charging device 210, a memory 220, and a processor 230. The memory 220 stores an application program configured to cause the processor 230 to execute the method provided in this embodiment of the application when invoked by the processor 230. The wireless charging device 210 may be the same as or different from the wireless charging device 100.

[0094] The processor 230 may include one or more processing cores. The processor 230 uses various interfaces and lines to connect to various parts of the vehicle 200, and is used to run or execute instructions, programs, code sets or instruction sets stored in the memory 220, as well as to call and run or execute data stored in the memory 220, and perform various functions of the vehicle 200 and process data.

[0095] The processor 230 can be implemented using at least one of the following hardware forms: Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), and Programmable Logic Array (PLA). The processor 230 can integrate one or a combination of several of the following: Central Processing Unit (CPU), Graphics Processing Unit (GPU), and modem. The CPU primarily handles the operating system, user interface, and applications; the GPU is responsible for rendering and drawing the displayed content; and the modem handles wireless communication. It is understood that the modem can also be implemented separately as a communication chip, without being integrated into the processor 230.

[0096] The memory 220 may include random access memory (RAM) or read-only memory (ROM). The memory 220 can be used to store instructions, programs, code, code sets, or instruction sets. The memory 220 may include a program storage area and a data storage area. The program storage area may store instructions for implementing an operating system, instructions for implementing at least one function, instructions for implementing the various method embodiments described above, etc. The data storage area may store data created by the vehicle 200 during use.

[0097] This application also provides a computer-readable storage medium storing program code that is configured to execute the method provided in this application when invoked by a processor.

[0098] Computer-readable storage media can be electronic storage devices such as flash memory, electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), hard disk, or ROM.

[0099] In some embodiments, the computer-readable storage medium includes a non-volatile computer-readable storage medium (Non-TCRSM). The computer-readable storage medium has storage space for program code that performs any of the method steps described above. This program code can be read from or written to one or more computer program products. The program code may be compressed in an appropriate form.

[0100] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A wireless charging method, characterized in that, include: Foreign object detection is performed during the wireless charging process of the vehicle's wireless charging device. The foreign object includes a near-field communication card, which has a built-in metal detector. The area of ​​the metal detector is greater than or equal to the effective detection area of ​​the foreign object. When a foreign object is detected, wireless charging of the device to be charged will be paused.

2. The method according to claim 1, characterized in that, Before performing foreign object detection during the wireless charging process of the vehicle's wireless charging device, the method further includes: When the wireless charging device is in standby mode, it detects whether a device to be charged has been placed on the wireless charging device. Foreign object detection is performed when a device to be charged is placed on the wireless charging device; Wireless charging of the device to be charged begins when no foreign object is detected. Wireless charging will not begin when a foreign object is detected.

3. The method according to claim 1 or 2, characterized in that, The method further includes: After detecting a foreign object, it was determined that the foreign object was a near-field communication card or a metallic object. When the foreign object is a near-field communication card, a near-field communication card alarm will be issued to prompt the user to remove the near-field communication card; When the foreign object is a metal object, a metal foreign object alarm will be triggered, prompting the user to remove the metal foreign object.

4. The method according to claim 3, characterized in that, The detected foreign object is a near-field communication card or a metallic foreign object, including: Handshake detection is performed on near-field communication cards; Upon successful handshake, the foreign object is identified as a near-field communication card; When the handshake fails, the foreign object is determined to be a metallic object.

5. The method according to claim 4, characterized in that, The handshake detection of the near-field communication card includes: A handshake signal is sent from the near-field communication card, enabling the near-field communication card to shake hands with the wireless charging device upon receiving the handshake signal.

6. The method according to claim 4, characterized in that, The device to be charged has near-field communication (NFC) functionality; the handshake detection of the NFC card includes: A handshake signal is sent from the near-field communication card, causing the device to be charged to pop up a near-field communication card pop-up window when it receives the handshake signal, prompting the user to select near-field communication card authentication.

7. The method according to claim 3, characterized in that, The method further includes: Wireless charging of the device to be charged is performed after the near-field communication card or metal foreign object is removed.

8. The method according to claim 1, characterized in that, The method further includes: When the wireless charging device is in standby mode, it performs a handshake detection on the near-field communication card in response to receiving a key authentication request. When the handshake is successful, the wireless charging device is kept in standby mode. If the handshake fails, continue to perform handshake detection on the near-field communication card until no more key authentication requests are received.

9. The method according to claim 1, characterized in that, The method further includes: During the wireless charging process of the wireless charging device for the device to be charged, in response to the key authentication request, a handshake detection is performed on the near-field communication card. Upon successful handshake, control the wireless charging device to continue wirelessly charging the device to be charged; If the handshake fails, continue to perform handshake detection on the near-field communication card until no more key authentication requests are received.

10. A wireless charging device, characterized in that, include: The foreign object detection module is used to detect foreign objects during the wireless charging process of the vehicle's wireless charging device. The foreign object includes a near-field communication card, which has a built-in metal detector. The area of ​​the metal detector is greater than or equal to the effective detection area of ​​the foreign object. The wireless charging module is used to pause wireless charging of the device being charged when a foreign object is detected.

11. A vehicle, characterized in that, include: A wireless charging device, a memory, and a processor, wherein the memory stores an application program that, when invoked by the processor, causes the processor to perform the method as described in any one of claims 1-9.

12. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores program code that, when invoked by a processor, causes the processor to perform the method as described in any one of claims 1-9.

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