A vehicle-mounted wireless charging system and a car product

Abstract

The application discloses a kind of vehicle wireless charging system and automobile product, including wireless charging module, wireless communication module, sensor module and control module, control module obtains the battery state parameter of each mobile user terminal respectively by wireless communication module, battery state parameter and charging work parameter are integrated as multi-source parameter, and wireless charging module is controlled according to multi-source parameter.The application can simultaneously provide wireless charging service for multiple mobile user terminals, so as to meet the demand of as many users as possible in the demand scenario of multiple personnel simultaneously to wireless charging in car, improve the overall driving experience;Moreover, by executing the control method of vehicle wireless charging system, it can guarantee the use safety of vehicle wireless charging system in the high-risk application scenario of providing wireless charging service for multiple mobile user terminals.The application is widely used in the field of automobile technology.

Description

Technical Field

[0001] This invention relates to the field of automotive technology, and in particular to an in-vehicle wireless charging system and automotive products. Background Technology

[0002] Wireless charging technology offers advantages such as eliminating the constraints of cables and allowing for convenient charging of mobile devices like smartphones and tablets. As a tool and place where users spend a short time, cars can fully leverage the advantages of wireless charging technology. Therefore, some cars currently utilize wireless charging technology to provide a better driving and riding experience for drivers and passengers.

[0003] The power source for in-vehicle wireless charging technology is the car's alternator and battery. While these power sources can provide significant power output, this is limited by the wiring between the power source and the wireless charging components. Using wiring that allows for high power transmission results in higher material costs and may also impact the wiring for communication and power supply to other components in the car. Furthermore, high power output is often caused by multiple mobile user terminals charging simultaneously. The complex coupling between these terminals and the wireless charging components increases the likelihood of malfunctions, including overheating and fire risks. Therefore, due to limitations in power output, wiring layout, and fault controllability, current in-vehicle wireless charging technologies often restrict the number of mobile user terminals that can be charged simultaneously, for example, allowing only one phone to be charged at a time. Since in-vehicle wireless charging technology is typically used in multi-user applications, the current limitations on the number of mobile user terminals that can be charged simultaneously restrict the user experience. Summary of the Invention

[0004] In view of at least one of the above-mentioned technical problems, the purpose of this invention is to provide an in-vehicle wireless charging system and an automotive product.

[0005] On one hand, embodiments of the present invention include an in-vehicle wireless charging system, the in-vehicle wireless charging system comprising: A wireless charging module; the wireless charging module is used to simultaneously accommodate one or more mobile user terminals and to wirelessly charge at least one of the mobile user terminals; A wireless communication module; the wireless communication module is used to communicate wirelessly with each of the mobile user terminals. Sensor module; the sensor module is used to detect the charging operating parameters of the wireless charging module; A control module is used to obtain the battery status parameters of each mobile user terminal through the wireless communication module, integrate the battery status parameters and the charging operation parameters into multi-source parameters, and control the wireless charging module according to the multi-source parameters.

[0006] Furthermore, the detection of the charging operating parameters of the wireless charging module includes: The real-time voltage, real-time current, coil temperature, coil offset distance, and electromagnetic interference intensity of the wireless charging module are detected. The real-time voltage, the real-time current, the coil temperature, the coil offset distance, and the electromagnetic interference intensity are used as the charging operating parameters.

[0007] Furthermore, the wireless communication range of the wireless communication module includes the wireless charging range of the wireless charging module; obtaining the battery status parameters of each of the mobile user terminals includes: For any mobile user terminal that enters the wireless communication range, a request is made to read the remaining battery power and battery health of the mobile user terminal. The remaining battery power and the battery health status are used as the battery state parameters.

[0008] Furthermore, controlling the wireless charging module based on the multi-source parameters includes: Based on the multi-source parameters, determine the dynamic voltage threshold and the dynamic current threshold; The wireless charging module is subjected to overvoltage control based on the dynamic voltage threshold. The wireless charging module is subjected to overcurrent control based on the dynamic current threshold.

[0009] Further, determining the dynamic voltage threshold and dynamic current threshold based on the multi-source parameters includes: Set the voltage base value and the current base value; The dynamic voltage threshold is determined based on the voltage base value and the multi-source parameters; wherein the dynamic voltage threshold is negatively correlated with the coil temperature, the coil offset distance and the electromagnetic interference intensity, and positively correlated with the remaining battery power and the battery health. The dynamic current threshold is determined based on the current base value and the multi-source parameters; wherein the dynamic current threshold is negatively correlated with the coil temperature, the coil offset distance and the electromagnetic interference intensity, and positively correlated with the remaining battery power and the battery health.

[0010] Furthermore, controlling the wireless charging module based on the multi-source parameters further includes: The voltage deviation value is determined based on the real-time voltage and the dynamic voltage threshold. The current deviation value is determined based on the real-time current and the dynamic current threshold. The fault characteristic value is obtained by weighted summation of the voltage deviation value, the current deviation value, the coil temperature, the coil offset distance, and the electromagnetic interference intensity; The fault level is determined based on the fault characteristic values. Based on the fault level, the wireless charging module is troubleshooted.

[0011] Furthermore, controlling the wireless charging module based on the multi-source parameters further includes: The maximum charging power is determined based on the results of the overvoltage control and the overcurrent control. The wireless communication module negotiates the terminal charging power with each of the mobile user terminals according to the maximum charging power. Control the wireless charging module to output wireless energy at the maximum charging power.

[0012] Furthermore, the in-vehicle wireless charging system also includes a navigation module for locating and navigating the vehicle; the step of negotiating the charging power of each mobile user terminal according to the maximum charging power includes: The navigation module is used to obtain the vehicle's travel information. Iterate through all the mobile user terminals mentioned; For any of the mobile user terminals, obtain the battery usage information of the mobile user terminal, obtain the matching degree between the battery usage information and the trip information, and determine the allocation ratio of the mobile user terminal based on the matching degree. Based on the maximum charging power and the respective allocation ratios, each mobile user terminal negotiates its own terminal charging power. Based on the charging power of each terminal, corresponding negotiation information is generated respectively; The wireless communication module transmits each negotiation message to the corresponding mobile user terminal; the negotiation message is used to trigger the mobile user terminal to perform input power limiting according to the terminal charging power corresponding to the negotiation message.

[0013] Further, obtaining the matching degree between the battery usage information and the trip information includes: Based on the battery usage information, multi-application power consumption information is determined; the multi-application power consumption information includes the power consumption ratio of each of the multiple applications running on the mobile user terminal over a period of time. Obtain the application scenario information for each of the aforementioned applications; The similarity between each application scenario information and the itinerary information is obtained respectively; The matching degree is obtained by weighting the power consumption information of the multiple applications with the similarity of each application.

[0014] On the other hand, embodiments of the present invention also include an automotive product, the automotive product including the in-vehicle wireless charging system described in the embodiments.

[0015] The beneficial effects of the present invention are: the in-vehicle wireless charging system in the embodiments can provide wireless charging services to multiple mobile user terminals at the same time, thereby meeting the needs of as many users as possible and improving the overall driving experience in scenarios such as cars where multiple people simultaneously need wireless charging; moreover, by executing the control method of the in-vehicle wireless charging system, the safety of using the in-vehicle wireless charging system can be ensured in high-risk application scenarios that provide wireless charging services to multiple mobile user terminals. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the vehicle-mounted wireless charging system in the embodiment; Figure 2 This is a schematic diagram of the structure of the wireless charging module (wireless communication module) in the embodiment; Figure 3 This is a schematic diagram illustrating the connection between the wireless charging module (wireless communication module) and each mobile user terminal in the embodiment. Figure 4 This is a schematic diagram of the steps of the control method of the vehicle-mounted wireless charging system in the embodiment. Figure 5 This is a schematic diagram illustrating the principle of charging power allocation for each mobile user terminal in an embodiment. Detailed Implementation

[0017] Terminology Explanation: NFC: Near Field Communication is a short-range, high-frequency wireless communication technology developed based on radio frequency identification (RFID) technology. It allows electronic devices to perform contactless point-to-point data transmission, identification, and interaction at relatively close distances (usually less than 10 centimeters, typically within 4 centimeters).

[0018] This embodiment provides an in-vehicle wireless charging system. (Refer to...) Figure 1The in-vehicle wireless charging system includes a control module, a wireless charging module, a wireless communication module, and a sensor module. Power and navigation modules can also be added. Components with data acquisition, data processing, and control functions, such as an Electronic Control Unit (ECU), can be used as the control module. In this embodiment, the same hardware components can be used as the wireless charging module and the wireless communication module. For example, refer to... Figure 2 Hardware components with coils as their main element can be used as wireless charging and wireless communication modules. When such a hardware component is needed to function as a wireless charging module, a power signal with a frequency of 100 kHz-205 kHz can be input to it, causing it to emit electromagnetic waves. When mobile user terminals such as smartphones and tablets with wireless charging capabilities enter the radiation range of the electromagnetic waves, the mobile user terminal can receive the electromagnetic waves and convert their energy into electrical energy, thus charging its battery. When such a hardware component is needed to function as a wireless communication module, a modulated signal (NFC signal) with a carrier frequency of 13.56 MHz can be input to it, causing it to emit electromagnetic waves. When mobile user terminals such as smartphones and tablets with NFC capabilities enter the radiation range of the electromagnetic waves, the mobile user terminal can receive the electromagnetic waves and perform signal processing such as filtering, demodulation, and decoding to obtain the signal sent to the mobile user terminal by the wireless communication module. The mobile user terminal can also perform a similar process to send signals to the wireless communication module, realizing wireless communication between the wireless communication module and the mobile user terminal using the NFC protocol.

[0019] In this embodiment, the wireless communication module can communicate with the mobile user terminal to request the mobile user terminal to send data that the control module needs to obtain, or to send data such as instructions output by the control module to the mobile user terminal. For example, the mobile user terminal itself is equipped with a battery management system to perform charging, discharging, and health management of the battery. The battery management system can obtain the remaining battery power of the battery in the mobile user terminal. and battery health The system collects data and transmits it to the wireless communication module via NFC wireless communication.

[0020] In this embodiment, the wireless charging module (wireless communication module) is large enough to accommodate multiple mobile user terminals simultaneously. For example, refer to... Figure 3A sufficiently large tray (set on top of the coil, close to the coil, or at a close distance, for example, 30cm x 30cm) can be incorporated into the wireless charging module (wireless communication module) to allow it to support multiple mobile user terminals simultaneously. The electromagnetic radiation range of the coil in the wireless charging module (wireless communication module) is sufficiently large, ensuring that even when multiple mobile user terminals are placed on the tray, each terminal remains within the electromagnetic radiation range of the wireless charging module (i.e., the wireless charging range), as well as within the electromagnetic radiation and reception range of the wireless communication range (i.e., the wireless communication range).

[0021] In this embodiment, the size, wireless charging range, and wireless communication range of the wireless charging module (wireless communication module) can be set according to the legal maximum number of occupants in the vehicle. For example, the size, wireless charging range, and wireless communication range of the wireless charging module (wireless communication module) can be set to meet the simultaneous charging and communication needs of the same number of mobile user terminals as the legal maximum number of occupants. This ensures that when the vehicle is fully occupied, if the driver and each passenger use their own mobile user terminal to charge using the in-vehicle wireless charging system, the needs of both the driver and all passengers can be met simultaneously.

[0022] In this embodiment, when multiple mobile user terminals are simultaneously placed in the vehicle-mounted wireless charging system for charging, the wireless charging module (wireless communication module) can request each mobile user terminal to obtain their remaining battery power. and battery health Data such as... Among them, the... The remaining battery power of each mobile user terminal is , No. The battery health of each mobile user terminal is .

[0023] In this embodiment, the sensor module includes components such as a voltage sensor, a current sensor, an infrared temperature sensor, a ranging sensor, and an interference signal strength sensor. The voltage sensor detects the voltage across the coil in the wireless charging module (wireless communication module) to obtain the real-time voltage. The current sensor can detect the magnitude of the current passing through the coil in the wireless charging module (wireless communication module) and obtain the real-time current. Infrared temperature sensors can detect the temperature of the coil in a wireless charging module (wireless communication module) and obtain the coil temperature. The ranging sensor can detect the distance between the mobile user terminal placed on the wireless charging module (wireless communication module) and the coil, and obtain the coil offset distance. ,in Indicates the first The distance between a mobile user terminal and the coil; the interference signal strength sensor can detect the intensity of environmental electromagnetic interference signals received by the wireless charging module (wireless communication module) and obtain the electromagnetic interference intensity. (Unit: dBμV / m).

[0024] In this embodiment, the real-time voltage Real-time current Coil temperature Coil offset distance and electromagnetic interference intensity These are all charging operating parameters of the wireless charging module (wireless communication module).

[0025] In this embodiment, in order for the on-board wireless charging system to operate and perform its functions, the control module can execute a control method for the on-board wireless charging system. (Refer to...) Figure 4 The control method for an on-board wireless charging system includes the following steps: S1. Detect the charging operating parameters of the wireless charging module through the sensor module; S2. Obtain the battery status parameters of each mobile user terminal through the wireless communication module; S3. Integrate battery status parameters and charging operation parameters into multi-source parameters; S4. Control the wireless charging module based on multi-source parameters.

[0026] In this embodiment, the two are placed simultaneously. (For example Taking the charging of 3 mobile user terminals in an in-vehicle wireless charging system as an example, the steps in the control method of the in-vehicle wireless charging system are explained.

[0027] In step S1, the control module calls the sensor module to detect the real-time voltage of the wireless charging module. Real-time current Coil temperature Coil offset distance and electromagnetic interference intensity Isochargeable operating parameters.

[0028] In step S2, the control module calls the wireless charging module (wireless communication module) to send requests to each mobile user terminal, enabling each mobile user terminal to detect its own remaining battery power. and battery health It then returns to the wireless charging module (wireless communication module). By executing step S1, the control module can obtain the remaining battery power. and battery health ( =1,2,... Data such as these constitute the battery state parameters.

[0029] In this embodiment, the real-time voltage Real-time current Coil temperature Coil offset distance Electromagnetic interference intensity Remaining battery power and battery health All the data were detected at the same sampling time. As time progressed, the data arrived at various sampling times, and a set of real-time voltages was obtained at each sampling time. Real-time current Coil temperature Coil offset distance Electromagnetic interference intensity Remaining battery power and battery health Data such as... Since the composition and processing principles of a set of data at each sampling time are the same, we will use a set of data obtained at one sampling time as an example for explanation.

[0030] In step S3, the control module can integrate the battery state parameters obtained by executing step S1 and the charging operating parameters obtained by executing step S2 into a multi-source parameter vector, the form of which is ( , , , , … … , , , … … , , … … )wait.

[0031] In this embodiment, when the control module executes step S3, which is to control the wireless charging module based on multi-source parameters, it can specifically perform the following steps: S301. Determine the dynamic voltage threshold and dynamic current threshold based on the multi-source parameters; S302. Perform overvoltage control on the wireless charging module based on the dynamic voltage threshold; S303. Perform overcurrent control on the wireless charging module based on the dynamic current threshold.

[0032] In step S301, the control module can set the voltage base value. and current base value Among them, the voltage base value and current base value Each is a fixed value; for example, it can be set to... =1V, =1A.

[0033] In step S301, the control module can set a positive, fixed coefficient. , , , , (The dimensions are ℃ respectively) -1 (e.g., thus eliminating the corresponding dimensions) and , , , , And so on, according to the formula

[0034] and

[0035] Calculate the dynamic voltage threshold respectively and dynamic current threshold The calculated dynamic voltage threshold and dynamic current threshold All related to coil temperature Coil offset distance and electromagnetic interference intensity Negative correlation, and with remaining battery power and battery health Positive correlation, i.e., coil temperature Coil offset distance and electromagnetic interference intensity The larger the battery capacity, the more remaining power it has. and battery health The smaller the value, the higher the calculated dynamic voltage threshold. and dynamic current threshold The smaller.

[0036] In this embodiment, by executing step S301, the coil temperature is... Coil offset distance and electromagnetic interference intensity The larger the value, the smaller the calculated dynamic voltage threshold. This serves as the voltage threshold for overvoltage control. Therefore, a smaller dynamic voltage threshold is set when the coil temperature is higher, the distance between the mobile user terminal and the coil is greater, or the electromagnetic interference experienced by the coil is stronger—in other words, when the environmental factors affecting the coil are more unfavorable. This makes it easier to trigger overvoltage detection and control of the wireless charging module when executing step S302. Similarly, when the battery has remaining power... and battery health The smaller the value, the smaller the calculated dynamic voltage threshold. This serves as the voltage threshold for overvoltage control. Thus, the lower the remaining battery power and battery health of any mobile user terminal, meaning the worse the condition of the mobile user terminal requiring charging, the smaller the dynamic voltage threshold should be. This makes it easier to trigger overvoltage detection and control of the wireless charging module when executing step S302.

[0037] In this embodiment, step S301 sets the dynamic current threshold. The principle is related to setting a dynamic voltage threshold. The principle is similar.

[0038] In this embodiment, the dynamic voltage threshold is determined based on the multi-source parameter settings during step S301. and dynamic current threshold The multi-source parameters are detected at specific sampling times, therefore the calculated dynamic voltage threshold... and dynamic current threshold It also changes dynamically with the sampling time, thereby enabling dynamic configuration of the voltage and current thresholds for overvoltage and overcurrent control in steps S302-S303, improving the environmental adaptability of the vehicle wireless charging system.

[0039] In this embodiment, when the control module executes step S302, the control module can detect the real-time voltage. The dynamic voltage threshold set in step S301 For comparison, when the real-time voltage Less than or equal to the dynamic voltage threshold Right now ≤ When the control module determines that the wireless charging module does not have overvoltage, it can refrain from performing control processing on the wireless charging module; when the real-time voltage... Greater than the dynamic voltage threshold Right now > When the control module determines that the wireless charging module has overvoltage, it can limit the input power of the wireless charging module (e.g., by reducing the duty cycle of the internal switching devices) to prevent the voltage of the wireless charging module from becoming too high. This achieves overvoltage control of the wireless charging module, effectively reducing the danger of overheating and ensuring the safe use of the vehicle wireless charging system.

[0040] Based on the same principle, when executing step S303, the control module can detect the real-time current. The dynamic current threshold set in step S301 For comparison, when the real-time current Less than or equal to the dynamic current threshold Right now ≤ When the control module determines that the wireless charging module does not have an overcurrent, it can refrain from performing control processing on the wireless charging module; when the real-time current... Greater than the dynamic current threshold Right now > When the control module determines that an overcurrent has occurred in the wireless charging module, it can limit the input power of the wireless charging module (e.g., by reducing the duty cycle of the internal switching devices) to prevent the current of the wireless charging module from being too high. This achieves overcurrent control of the wireless charging module, effectively reducing the danger of overheating and ensuring the safe use of the vehicle wireless charging system.

[0041] In this embodiment, based on the execution of steps S301-S303, when the control module executes step S3, which is the step of controlling the wireless charging module according to the multi-source parameters, it can also perform the following steps: S304. Determine the voltage deviation value based on the real-time voltage and the dynamic voltage threshold; S305. Determine the current deviation value based on the real-time current and the dynamic current threshold; S306. The fault characteristic value is obtained by weighted summation of voltage deviation, current deviation, coil temperature, coil offset distance and electromagnetic interference intensity; S307. Determine the fault level based on the fault characteristic values; S308. Handle the wireless charging module according to the fault level.

[0042] In step S304, the real-time voltage can be calculated. With dynamic voltage threshold The absolute value of the difference As a voltage deviation value.

[0043] In step S305, the real-time current can be calculated. With dynamic current threshold The absolute value of the difference As the current deviation value.

[0044] In step S306, the control module can set a positive weight value. , , , , For voltage deviation value Current deviation value Coil temperature Coil offset distance and electromagnetic interference intensity Perform weighted summation to obtain fault characteristic values. Specifically, the control module can be based on the formula.

[0045] Calculate the fault characteristic values .

[0046] In step S307, the control module can use the fault characteristic values ​​calculated in step S306. The fault level of the vehicle-mounted wireless charging system is determined. Specifically, the fault level is related to the fault characteristic value. Positive correlation, i.e., fault characteristic values The larger the value, the higher the fault level, indicating a more serious potential fault in the vehicle's wireless charging system.

[0047] For example, in this embodiment, the control module can determine the fault level and the corresponding fault handling method according to the rules shown in Table 1.

[0048] Table 1

[0049] In step S308, the control module can select the appropriate fault handling method to control the wireless charging module to perform fault handling according to the fault level determined in Table 1.

[0050] In this embodiment, the control module, by executing steps S304-S308, can determine the voltage deviation value detected from the wireless charging module. Current deviation value Coil temperature Coil offset distance and electromagnetic interference intensity By comprehensively judging parameters such as these, a parameter that can quantitatively represent the severity of potential faults in the vehicle-mounted wireless charging system, namely the fault characteristic value, is determined. This allows the control module to base its decisions on fault characteristic values. Timely selection of clear and appropriate fault handling methods can help troubleshoot vehicle-mounted wireless charging systems, reduce the risks they face when providing charging services to multiple mobile user terminals simultaneously, and ensure the safe use of vehicle-mounted wireless charging systems.

[0051] In this embodiment, based on the execution of steps S301-S303 or S301-S308, when the control module executes step S3, that is, the step of controlling the wireless charging module according to the multi-source parameters, it can also perform the following steps: S309. Determine the maximum charging power based on the results of overvoltage control and overcurrent control; S310. Through the wireless communication module, negotiate the charging power of each mobile user terminal according to the maximum charging power; S311. Control the wireless charging module to output wireless energy at maximum charging power.

[0052] In this embodiment, the principle of steps S309-S311 is as follows: Figure 5 As shown.

[0053] In step S309, the control module can call the results of overvoltage control and overcurrent control performed in steps S302-S303 to determine the maximum charging power. Specifically, in steps S302-S303, the dynamic voltage threshold used... and dynamic current threshold These can be considered as the maximum voltage and maximum current at which the wireless charging module can operate normally at the current moment. Therefore, the dynamic voltage threshold can be calculated. and dynamic current threshold The product of the two yields the maximum charging power. ,Right now

[0054] In this embodiment, the maximum charging power This indicates the maximum power output by the wireless charging module when it can function normally.

[0055] In step S310, refer to Figure 2 Mobile user terminal 1, mobile user terminal 2, and mobile user terminal 3 have established connections with the wireless charging module (wireless communication module), and the wireless charging module (wireless communication module) can negotiate with each mobile user terminal separately.

[0056] Specifically, when executing step S310, the control module may perform the following steps: S31001. Obtain the vehicle's travel information through the navigation module; S31002. Traverse all mobile user terminals; S31003. For any mobile user terminal, obtain the battery usage information of the mobile user terminal, obtain the matching degree between the battery usage information and the trip information, and determine the allocation ratio of the mobile user terminal based on the matching degree. S31004. Based on the maximum charging power and the allocation ratio, determine the charging power of each mobile user terminal through negotiation; S31005. Generate corresponding negotiation information according to the charging power of each terminal; S31006. Through the wireless communication module, each negotiation message is sent to the corresponding mobile user terminal; the negotiation message is used to trigger the mobile user terminal to perform input power limiting according to the terminal charging power corresponding to the negotiation message.

[0057] In step S31001, the control module can call the navigation module to read the car's navigation task, thereby obtaining trip information based on the navigation task. Trip information indicates the location and type of places the car is about to travel to, such as the route and destination. For example, when driving the car on a weekday and operating the onboard wireless charging system, the trip information may include location information such as the workplace; when driving the car on a weekend and operating the onboard wireless charging system, the trip information may include location information such as parks or scenic spots.

[0058] In step S31002, the control module iterates through all mobile user terminals, including mobile user terminal 1, mobile user terminal 2, and mobile user terminal 3, and executes steps S31003-S31006 for each mobile user terminal. The following explanation uses the execution of steps S31003-S31006 on one of the mobile user terminals (e.g., mobile user terminal 1) as an example.

[0059] In step S31003, the control module requests to obtain the battery usage information of the mobile user terminal 1. The mobile user terminal 1 can call its own battery management system to obtain the battery usage information.

[0060] In this embodiment, battery usage information represents the change in the remaining battery power of mobile user terminal 1 over a period of time (e.g., the past 24 hours) per unit time (e.g., 1 hour), as well as the power consumption ratio of each application running on mobile user terminal 1 (including social applications, beauty camera, SMS, phone calls, work applications, browsers, etc.), i.e., multi-application power consumption information. For example, the power consumption ratio of social applications represents the proportion of power consumed by the CPU, screen, and other components of mobile user terminal 1 during the past period due to running the social application, relative to the power consumed by running all applications.

[0061] In this embodiment, it is assumed that the power consumption information of the multiple applications of the mobile user terminal 1 obtained by the control module is as shown in Table 2.

[0062] Table 2 Power Consumption Information of Multi-Applications for Mobile User Terminal 1

[0063] In step S31003, the control module obtains the application scenario information for each application corresponding to the battery usage information of the mobile user terminal 1. Specifically, the control module can request the mobile user terminal 1 to call its application manager to read the application scenario information for each application. The application scenario information can be edited by the application developer or automatically identified by the mobile user terminal 1. For example, the application scenario information for social applications includes tags such as "daily," "entertainment," and "work"; the application scenario information for beauty camera applications includes tags such as "travel," "daily," and "entertainment"; and the application scenario information for work applications includes tags such as "work."

[0064] In step S31003, for mobile user terminal 1, the control module determines the application scenario information of each application in Table 2 running on mobile user terminal 1 and the similarity between it and the route or destination contained in the trip information.

[0065] Specifically, the semantic similarity between the application scenario information in tag form and the transit points or destinations contained in the travel information can be calculated to obtain the similarity between the application scenario information and the travel information. For example, for a social application, its application scenario information has tags such as "daily," "entertainment," and "work." The tag "work" semantically overlaps with the travel information "workplace," so this application scenario information has 100% similarity to the travel information "workplace." For a beauty camera application, its application scenario information has tags such as "travel," "daily," and "entertainment." The tag "daily" has 30% semantic similarity to the travel information "workplace," so this application scenario information has 30% similarity to the travel information "workplace." Based on the above method, the similarity data shown in Table 3 can be obtained.

[0066] Table 3. Similarity between application scenario information and itinerary information of mobile user terminal 1

[0067] In step S31003, the control module performs a weighted summation based on the similarity between the application scenario information and the trip information of each application shown in Table 3, and the power consumption ratio of each application in the multi-application power consumption information shown in Table 2, thereby calculating the matching degree corresponding to mobile user terminal 1. =30%×100%+5%×30%+1%×100%+20%×100%+20%×100%+30%×100%+14%×100%=116.5% In this embodiment, the matching degree corresponding to mobile user terminal 1 The meaning is the degree of matching between the user habits of the mobile user terminal 1 (a passenger in a car), as indicated by the multi-application power consumption information generated by the mobile user terminal 1 over a period of time, and the destination that the car carrying the user, i.e., the car with the onboard wireless charging system, is about to reach. For example, if the user of the mobile user terminal 1 tends to use work applications over a period of time, then the matching degree calculated in step S31003 will be higher because this user habit matches the "work unit" that the car is about to reach, as indicated by the trip information.

[0068] In step S31003, based on the above principle, the matching degree corresponding to mobile user terminal 2 can also be calculated. and the matching degree corresponding to mobile user terminal 3 In this embodiment, it is assumed that... =30%, =50%.

[0069] In step S31003, the matching degree of each mobile user terminal can be normalized to obtain the allocation ratio of each mobile user terminal.

[0070] Specifically, for the matching degree corresponding to mobile user terminal 1 It can be based on the formula =59.29% Calculate the allocation ratio corresponding to mobile user terminal 1 Similarly, according to the formula =15.27% =25.45% The allocation ratio corresponding to mobile user terminal 2 is given separately. And the allocation ratio corresponding to mobile user terminal 3 .

[0071] In step S31004, the control module determines the maximum charging power. According to the formula, the allocation ratios are as follows:

[0072]

[0073]

[0074] Calculate the terminal charging power corresponding to mobile user terminal 1 respectively. The terminal charging power corresponding to mobile user terminal 2 and the terminal charging power corresponding to mobile user terminal 3 .

[0075] In step S31005, the control module generates corresponding negotiation information based on the charging power of each terminal. For example, the control module generates negotiation information based on the charging power of mobile user terminal 1. Generate the corresponding negotiation information. During step S31006, the control module transmits the corresponding terminal charging power via the wireless communication module. The negotiation information is sent to mobile user terminal 1, thereby triggering mobile user terminal 1 to adjust the charging power according to the terminal's charging power. Implement input power limiting. For example, mobile user terminal 1 can configure its battery management system to adjust parameters such as input impedance, so that the battery management system only allows the terminal to charge at a maximum power. The battery of mobile user terminal 1 is charged through and fed into the battery management system. After configuring the battery management system, mobile user terminal 1 can generate feedback information and return it to the control module, thus completing the negotiation between the control module and mobile user terminal 1.

[0076] By executing steps S31001-S31006, it can be achieved as follows: Figure 5 As shown, the control module only needs to control the wireless charging module to achieve the maximum charging power at its maximum size. When a charging power signal is sent out, there will be signals of magnitude [value missing]. The power enters the mobile user terminal 1 and charges its battery, which is [size missing]. The power enters the mobile user terminal 2 and charges its battery, which is [size missing]. The power is supplied to mobile user terminal 3 and used to charge its battery, thus achieving wireless charging power allocation among various mobile user terminals. Furthermore, the charging power received by each mobile user terminal is directly proportional to the matching degree between its battery usage information and travel information. That is, the higher the matching degree between a mobile user terminal's battery usage information and travel information (compared to other mobile user terminals), the higher the maximum charging power will be. Within the limited range, this mobile user terminal can obtain greater wireless charging power.

[0077] In this embodiment, the principle of executing steps S31001-S31006 is as follows: by executing steps S31001-S31006, when multiple mobile user terminals need to be wirelessly charged by the vehicle-mounted wireless charging system simultaneously, the total output power of the vehicle-mounted wireless charging system can be controlled to not exceed the maximum charging power. Within a certain range, the system ensures the safe operation of the in-vehicle wireless charging system. For each mobile user terminal, the battery usage information contains information about the user's (who is also the driver or passenger of the car) usage habits over a period of time (e.g., using relevant applications in preparation for work or travel). By calculating the matching degree between battery usage information and trip information, the system can determine the relevance between the mobile user terminal and the user's purpose for taking the car, and the overall route or destination the car needs to reach. For mobile user terminals with a higher matching degree, i.e., a higher relevance between the purpose of taking the car and the overall route or destination the car needs to reach, a higher charging power is allocated. This enables priority allocation of charging power to mobile user terminals whose purpose matches the current trip, ensuring that the corresponding mobile user terminals have sufficient power to charge, guaranteeing the achievement of the purpose of the trip (e.g., running errands, sightseeing, taking photos, etc.), and improving the overall driving experience.

[0078] A wireless charging system can be installed in a car, integrating it with other components to form a unified vehicle system. Such a car then possesses the full benefits of a wireless charging system.

[0079] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. Furthermore, the descriptions of "upper," "lower," "left," and "right" used in this disclosure are only relative to the relative positional relationships of the components of this disclosure in the accompanying drawings. The singular forms "a," "an," and "the" used in this disclosure are also intended to include the plural forms, unless the context clearly indicates otherwise. Moreover, unless otherwise defined, all technical and scientific terms used in this embodiment have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this embodiment specification is only for describing particular embodiments and is not intended to limit the invention. The term "and / or" as used in this embodiment includes any combination of one or more of the associated listed items.

[0080] It should be understood that although various elements may be described in this disclosure using terms such as "second," "third," etc., these elements should not be limited to these terms. These terms are used only to distinguish elements of the same type from one another. For example, an element may also be referred to as a second element without departing from the scope of this disclosure, and similarly, a second element may also be referred to as an element. The use of any and all instances or exemplary language ("e.g.," "such as," etc.) provided in this embodiment is intended only to better illustrate embodiments of the invention and, unless otherwise required, does not impose a limitation on the scope of the invention.

[0081] It should be recognized that embodiments of the present invention can be implemented or carried out by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer-readable storage medium. The method can be implemented using standard programming techniques—including a non-transitory computer-readable storage medium configured with a computer program, wherein such a storage medium causes the computer to operate in a specific and predefined manner—according to the methods and drawings described in the specific embodiments. Each program can be implemented in a high-level procedural or object-oriented programming language to communicate with the computer system. However, if desired, the program can be implemented in assembly or machine language. In any case, the language can be a compiled or interpreted language. Furthermore, for this purpose, the program can run on a programmed application-specific integrated circuit (ASIC).

[0082] Furthermore, the procedures described in this embodiment can be performed in any suitable order unless otherwise indicated by this embodiment or otherwise obviously contradict the context. The procedures (or variations and / or combinations thereof) described in this embodiment can be executed under the control of one or more computer systems configured with executable instructions, and can be implemented by hardware or a combination thereof as code (e.g., executable instructions, one or more computer programs, or one or more applications) that commonly executes on one or more processors. A computer program includes a plurality of instructions executable by one or more processors.

[0083] Furthermore, the method can be implemented in any suitable type of computing platform, including but not limited to personal computers, minicomputers, mainframes, workstations, networked or distributed computing environments, standalone or integrated computer platforms, or in communication with charged particle tools or other imaging devices, etc. Aspects of the invention can be implemented as machine-readable code stored on a non-transitory storage medium or device, whether removable or integrated into a computing platform, such as a hard disk, optical read and / or write storage medium, RAM, ROM, etc., such that it is readable by a programmable computer, and when the storage medium or device is read by the computer, it can be used to configure and operate the computer to perform the processes described herein. Furthermore, the machine-readable code, or portions thereof, can be transmitted via wired or wireless networks. The invention of this embodiment includes these and other different types of non-transitory computer-readable storage media when such media comprises instructions or programs that implement the steps above in conjunction with a microprocessor or other data processor. When programmed according to the methods and techniques of the invention, the invention also includes the computer itself.

[0084] A computer program can be applied to input data to perform the functions of this embodiment, thereby transforming the input data to generate output data stored in non-volatile memory. The output information can also be applied to one or more output devices, such as a display. In a preferred embodiment of the invention, the transformed data represents physical and tangible objects, including specific visual depictions of physical and tangible objects generated on the display.

[0085] The above are merely preferred embodiments of the present invention. The present invention is not limited to the above-described embodiments. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention, as long as they achieve the technical effects of the present invention by the same means, should be included within the scope of protection of the present invention. Within the scope of protection of the present invention, the technical solutions and / or implementation methods can have various modifications and variations.

Claims

1. A vehicle-mounted wireless charging system, characterized in that, The vehicle-mounted wireless charging system includes: A wireless charging module; the wireless charging module is used to simultaneously accommodate one or more mobile user terminals and to wirelessly charge at least one of the mobile user terminals; A wireless communication module; the wireless communication module is used to communicate wirelessly with each of the mobile user terminals. Sensor module; the sensor module is used to detect the charging operating parameters of the wireless charging module; A control module is used to obtain the battery status parameters of each mobile user terminal through the wireless communication module, integrate the battery status parameters and the charging operation parameters into multi-source parameters, and control the wireless charging module according to the multi-source parameters.

2. The vehicle-mounted wireless charging system according to claim 1, characterized in that, The detection of the charging operating parameters of the wireless charging module includes: The real-time voltage, real-time current, coil temperature, coil offset distance, and electromagnetic interference intensity of the wireless charging module are detected. The real-time voltage, the real-time current, the coil temperature, the coil offset distance, and the electromagnetic interference intensity are used as the charging operating parameters.

3. The vehicle-mounted wireless charging system according to claim 2, characterized in that, The wireless communication range of the wireless communication module includes the wireless charging range of the wireless charging module; obtaining the battery status parameters of each of the mobile user terminals includes: For any mobile user terminal that enters the wireless communication range, a request is made to read the remaining battery power and battery health of the mobile user terminal. The remaining battery power and the battery health status are used as the battery state parameters.

4. The vehicle-mounted wireless charging system according to claim 3, characterized in that, The step of controlling the wireless charging module based on the multi-source parameters includes: Based on the multi-source parameters, determine the dynamic voltage threshold and the dynamic current threshold; The wireless charging module is subjected to overvoltage control based on the dynamic voltage threshold. The wireless charging module is subjected to overcurrent control based on the dynamic current threshold.

5. The vehicle-mounted wireless charging system according to claim 4, characterized in that, The step of determining the dynamic voltage threshold and dynamic current threshold based on the multi-source parameters includes: Set the voltage base value and the current base value; The dynamic voltage threshold is determined based on the voltage base value and the multi-source parameters; wherein the dynamic voltage threshold is negatively correlated with the coil temperature, the coil offset distance and the electromagnetic interference intensity, and positively correlated with the remaining battery power and the battery health. The dynamic current threshold is determined based on the current base value and the multi-source parameters; wherein the dynamic current threshold is negatively correlated with the coil temperature, the coil offset distance and the electromagnetic interference intensity, and positively correlated with the remaining battery power and the battery health.

6. The vehicle-mounted wireless charging system according to claim 5, characterized in that, The step of controlling the wireless charging module based on the multi-source parameters further includes: The voltage deviation value is determined based on the real-time voltage and the dynamic voltage threshold. The current deviation value is determined based on the real-time current and the dynamic current threshold. The fault characteristic value is obtained by weighted summation of the voltage deviation value, the current deviation value, the coil temperature, the coil offset distance, and the electromagnetic interference intensity; The fault level is determined based on the fault characteristic values. Based on the fault level, the wireless charging module is troubleshooted.

7. The vehicle-mounted wireless charging system according to any one of claims 3-6, characterized in that, The step of controlling the wireless charging module based on the multi-source parameters further includes: The maximum charging power is determined based on the results of the overvoltage control and the overcurrent control. The wireless communication module negotiates the terminal charging power with each of the mobile user terminals according to the maximum charging power. Control the wireless charging module to output wireless energy at the maximum charging power.

8. The vehicle-mounted wireless charging system according to claim 7, characterized in that, The in-vehicle wireless charging system further includes a navigation module for locating and navigating the vehicle; the step of negotiating the charging power of each mobile user terminal according to the maximum charging power includes: The navigation module is used to obtain the vehicle's travel information. Iterate through all the mobile user terminals mentioned; For any of the mobile user terminals, obtain the battery usage information of the mobile user terminal, obtain the matching degree between the battery usage information and the trip information, and determine the allocation ratio of the mobile user terminal based on the matching degree. Based on the maximum charging power and the respective allocation ratios, each mobile user terminal negotiates its own terminal charging power. Based on the charging power of each terminal, corresponding negotiation information is generated respectively; The wireless communication module transmits each negotiation message to the corresponding mobile user terminal; the negotiation message is used to trigger the mobile user terminal to perform input power limiting according to the terminal charging power corresponding to the negotiation message.

9. The vehicle-mounted wireless charging system according to claim 8, characterized in that, The step of obtaining the matching degree between the battery usage information and the trip information includes: Based on the battery usage information, multi-application power consumption information is determined; the multi-application power consumption information includes the power consumption ratio of each of the multiple applications running on the mobile user terminal over a period of time. Obtain the application scenario information for each of the aforementioned applications; The similarity between each application scenario information and the itinerary information is obtained respectively; The matching degree is obtained by weighting the power consumption information of the multiple applications with the similarity of each application.

10. An automobile product, characterized in that, The automotive product includes the in-vehicle wireless charging system as described in any one of claims 1-9.

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