Wireless charging control method, device, equipment and storage medium

Abstract

The present application discloses a wireless charging control method, device, equipment and storage medium, the method comprising: obtaining charging output power and terminal temperature; determining the working mode of the wireless charging system according to preset rules based on the charging output power and the terminal temperature, the preset rules comprising at least two control rules and working modes corresponding to each control rule; controlling the wireless charging system to enter the working mode corresponding to the control rule. The scheme can fully consider the influencing factors in the wireless charging process, automatically control each device in the wireless charging system to enter the working mode corresponding to each control rule, thereby not only realizing fast and efficient wireless charging, but also ensuring the safety of wireless charging, avoiding damage to charging coils, switches and other devices, and further improving the user experience.

Description

Technical Field

[0001] The present invention generally relates to the field of wireless charging technology, and specifically relates to a wireless charging control method, device, equipment and storage medium. Background Art

[0002] With the rapid development of information technology, the functions of electronic devices are becoming more and more powerful, and the charging technology of electronic devices is also constantly developing and improving. In recent years, wireless charging technology has gradually been applied to a large number of electronic devices. Among them, wireless charging originates from wireless power transmission technology. It transmits power by using magnetic fields and other media. It has the characteristics of high portability and unlimited plug-in. In order to improve the wireless charging efficiency of wireless charging equipment, the research on wireless charging power is particularly important.

[0003] At present, the output voltage of the wireless charging device in the electronic equipment of the related technology is within 20V. In order to improve the wireless charging power, one way is to increase the current at the output end, but increasing the current at the output end will increase the loss of components such as the charging coil and the switch, causing the electronic equipment to generate more heat, thereby affecting the wireless charging effect; another way is to increase the voltage at the output end while keeping the output current unchanged, but in the case of continuous high-voltage and high-power charging, the wireless charging safety will be low, resulting in a poor user experience. Summary of the invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a wireless charging control method, device, equipment and storage medium.

[0005] In a first aspect, an embodiment of the present application provides a wireless charging control method, the method comprising:

[0006] Obtain charging output power and terminal temperature;

[0007] Based on the charging output power and the terminal temperature, determining the working mode of the wireless charging system according to preset rules, wherein the preset rules include at least two control rules and working modes corresponding to each of the control rules;

[0008] The wireless charging system is controlled to enter a working mode corresponding to the control rule.

[0009] In one embodiment, the preset rule includes a first control rule and a second control rule, and based on the charging output power and the terminal temperature, the working mode of the wireless charging system is determined according to the preset rule, including:

[0010] Determining whether the charging output power is greater than a preset power threshold;

[0011] If it is greater than the preset power threshold, determining the working mode of the wireless charging system according to the terminal temperature and the first control rule;

[0012] If it is not greater than the preset power threshold, the operating mode of the wireless charging system is determined according to the terminal temperature and the second control rule.

[0013] In one embodiment, the wireless charging system includes a first charge pump, a second charge pump and a power management circuit PMIC, and determining the working mode of the wireless charging system according to the terminal temperature and the first control rule includes:

[0014] Determining whether the terminal temperature is less than a first temperature threshold;

[0015] When the temperature is less than the first temperature threshold, determining that the operating mode of the first charge pump is the first mode, the operating mode of the second charge pump is the second mode, and the operating mode of the PMIC is the charging mode;

[0016] When the temperature is not less than the first temperature threshold, determining whether the terminal temperature is less than a second temperature threshold, the first temperature threshold being less than the second temperature threshold;

[0017] When the temperature is less than the second temperature threshold, it is determined that the operating mode of the first charge pump is the second mode, the operating mode of the second charge pump is the second mode, and the operating mode of the PMIC is the charging mode.

[0018] In one of the embodiments, after determining whether the terminal temperature is less than a second temperature threshold, the method further includes:

[0019] When the terminal temperature is not less than the second temperature threshold, it is determined that the operating mode of the first charge pump is the second mode and the operating mode of the PMIC is the charging mode.

[0020] In one embodiment, determining the operating mode of the wireless charging system according to the terminal temperature and the second control rule includes:

[0021] Determining whether the terminal temperature is less than a third temperature threshold;

[0022] When the temperature is less than the third temperature threshold, determining that the operating mode of the first charge pump is the second mode, the operating mode of the second charge pump is the second mode, and the operating mode of the PMIC is the charging mode;

[0023] When the temperature is not less than the third temperature threshold, it is determined that the operating mode of the first charge pump is the second mode and the operating mode of the PMIC is the charging mode.

[0024] In one embodiment, controlling the wireless charging system to enter a working mode corresponding to the control rule includes:

[0025] Acquire a configuration file corresponding to the working mode, wherein the configuration file is configured with parameters corresponding to the wireless charging system that conforms to the control rule;

[0026] The configuration file is parsed to control the wireless charging system to enter a working mode corresponding to the control rule.

[0027] In one embodiment, before obtaining the charging output power and the terminal temperature, the method further includes:

[0028] Determining whether the terminal device complies with the wireless charging protocol;

[0029] When the wireless charging protocol is not met, determining that the working mode of the first charge pump is the third mode and the working mode of the PMIC is the charging mode;

[0030] When the wireless charging protocol is met, the charging output power and the terminal temperature are obtained.

[0031] In a second aspect, an embodiment of the present application provides a wireless charging control device, the device comprising:

[0032] An acquisition module is used to obtain charging output power and terminal temperature;

[0033] a determination module, configured to determine the working mode of the wireless charging system according to preset rules based on the charging output power and the terminal temperature, wherein the preset rules include at least two control rules and a working mode corresponding to each of the control rules;

[0034] The control module is used to control the wireless charging system to enter a working mode corresponding to the control rule.

[0035] In a third aspect, an embodiment of the present application provides a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the wireless charging control method of the first aspect described above is implemented.

[0036] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program is used to implement the wireless charging control method of the first aspect above.

[0037] The wireless charging control method, device, equipment and storage medium provided in the embodiments of the present application obtain the charging output power and the terminal temperature, and based on the charging output power and the terminal temperature, determine the working mode of the wireless charging system according to the preset rules, the preset rules include at least two control rules and the working mode corresponding to each control rule, and control the wireless charging system to enter the working mode corresponding to the control rule. Since at least two control rules are set, the technical solution only needs to obtain the charging output power and the terminal temperature, can fully consider the influencing factors in the wireless charging process, and automatically control each device in the wireless charging system to enter the working mode corresponding to each control rule, which not only realizes fast and efficient wireless charging, but also ensures the safety of wireless charging, avoids the loss of charging coils, switches and other devices, reduces the heat during the charging process, and further improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0039] Figure 1 A schematic diagram of the structure of a wireless charging system provided in an embodiment of the present application;

[0040] Figure 2 A flow chart of a wireless charging control method provided in an embodiment of the present application;

[0041] Figure 3 A flow chart of a wireless charging control method provided in an embodiment of the present application;

[0042] Figure 4 A flow chart of a wireless charging control method provided in an embodiment of the present application;

[0043] Figure 5 A schematic diagram of the structure of a wireless charging control device provided in an embodiment of the present application;

[0044] Figure 6 A schematic diagram of the structure of a terminal device according to an embodiment of the present application. DETAILED DESCRIPTION

[0045] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0046] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0047] It is understandable that as the functions of electronic devices become more and more powerful, the requirements for the endurance of electronic devices are also getting higher and higher. Wireless charging technology is gradually applied to various electronic devices, and wireless charging can be achieved through electromagnetic induction, radio waves, electromagnetic resonance and electric field coupling. Among them, electromagnetic induction is that the current passes through the coil, the coil generates a magnetic field, and generates an induced electromotive force to the nearby coil, thereby generating current. Generally, during the wireless charging process, the terminal device needs to be placed in the charging base, and a power transmitting coil is installed in the charging base. A receiving coil is installed in the electronic device. The transmitting coil transmits power through electromagnetic induction, and the receiver in the electronic device receives power through the receiving coil, and provides energy to the subsequent stage through rectification and power conversion circuits (such as charging circuits). At the same time, the receiver in the electronic device can send commands through the communication interface to adjust the charging voltage, and can also completely terminate the power transmission after receiving the indication that charging is over. Since the efficiency of wireless charging is related to power, generally the greater the power, the greater the range of the magnetic field generated, the closer the distance, the better the efficiency, and the closer the receiving coil and the transmitting coil, the higher the power conversion efficiency. In order to improve the charging efficiency of wireless charging equipment, the wireless charging power can be increased.

[0048] In the related technology, the wireless charging power can be increased in two ways. One way is to increase the current at the output end of the wireless charging system. However, increasing the current at the output end will increase the loss of components such as charging coils and switches, causing the electronic equipment to generate more heat, thereby affecting the wireless charging effect. The other way is to increase the voltage at the output end while keeping the output current unchanged. However, in the case of continuous high-voltage and high-power charging, the wireless charging safety will be low, resulting in a poor user experience.

[0049] Based on the above-mentioned defects, the present application provides a wireless charging control method. Compared with the related art, this scheme sets at least two control rules and only needs to obtain the charging output power and terminal temperature. It can automatically control the wireless charging system to enter the working mode corresponding to each control rule, thereby not only realizing fast and efficient wireless charging, but also ensuring the safety of wireless charging, avoiding damage to devices such as charging coils and switches, and further improving the user experience.

[0050] The terminal devices involved in the embodiments of the present application may include mobile terminals such as mobile phones, tablet computers, laptop computers, PDAs, portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, etc., as well as fixed terminals such as digital TVs and desktop computers.

[0051] The wireless charging control method provided in the embodiment of the present application can be applied to a terminal device, wherein the terminal device includes a wireless charging system. Figure 1 A schematic diagram of the structure of a wireless charging system provided in an embodiment of the present application is shown in FIG. Figure 1 As shown, the wireless charging system includes a receiver 10 (Receiver, RX), a first charge pump 20 of Charge Pump1, a second charge pump 30 of Charge Pump2, a power management circuit 40 (Power Management IC, PMIC), a processor 50 and a battery 60. One end of the receiver 10 is coupled and connected to a receiving coil 70, and the other end of the receiver 10 is connected to one end of the first charge pump 20 of Charge Pump1, and the other end of the first charge pump 20 of Charge Pump1 is respectively connected to one end of PMIC40 and one end of the second charge pump 30 of Charge Pump2, and the other end of PMIC40 and the other end of the second charge pump 30 of Charge Pump2 are respectively connected to the battery 60.

[0052] The receiving coil is used to receive the current emitted by the wireless charging transmitting coil, and the receiver RX is used to convert the alternating current coupled by the receiving coil into direct current.

[0053] The first charge pump and the second charge pump are a kind of DC-DC converter, which use capacitors as energy storage elements to perform voltage conversion, and use a switch network to power or disconnect two or more capacitors to perform DC / DC voltage conversion. It can be used as an inverter, a splitter or a booster. When used as an inverter, it can convert the input voltage into a negative output; when used as a splitter, the output voltage is a part of the input voltage, such as 1 / 2 or 2 / 3; when used as a booster, it can bring 1.5X or 2X gain to I / O. In this embodiment, the first charge pump and the second charge pump can be used as splitters. Among them, the first charge pump can work in mode A, which has three working modes, namely A1, A2, and A3. The ratios of input voltage to output voltage corresponding to the three modes A1, A2, and A3 are 3:1, 2:1, and 1:1 respectively; the second charge pump can work in mode B, which has two working modes, namely B1 and B2. The ratios of input voltage to output voltage corresponding to the two modes B1 and B2 are 2:1 and 1:1.

[0054] The power management circuit PMIC is an integrated circuit that includes multiple power rails and power management functions in a single chip, which is used for charging control and can control the current value. Among them, PMIC can be a wireless charging control chip that works in C mode.

[0055] The battery may be a lithium battery, and electricity may be charged into the lithium battery through the voltage conversion operation of the first charge pump and the second charge pump.

[0056] For ease of understanding and explanation, the following Figures 2 to 6 The wireless charging control method, device, equipment and storage medium provided in the embodiments of the present application are described in detail.

[0057] Figure 2 FIG. 1 is a flow chart of a wireless charging control method provided in an embodiment of the present application, which can be executed by a wireless charging control device. Figure 2 As shown, the method includes:

[0058] S101. Obtain charging output power and terminal temperature.

[0059] Specifically, the corresponding wireless charging protocol can be set in advance for the terminal device and the wireless charging stand. The wireless charging protocol can be a private protocol obtained by modifying or improving the public protocol. The private wireless charging protocols of different manufacturers are incompatible. The private protocol can be, for example, the MTK protocol, Qualcomm protocol, PD protocol, VOOC flash charging protocol, etc. It should be noted that the public protocol can be the Qi protocol, which is formulated based on the Qi standard. The Qi standard is the "wireless charging" standard launched by the Wireless Charging Alliance, the world's first standardization organization to promote wireless charging technology. It has the two characteristics of convenience and versatility, and can be completed using electromagnetic induction technology.

[0060] To prevent the wireless charging stand from wirelessly charging unauthorized terminal devices, the wireless charging device (such as the wireless charging stand) often needs to authenticate the terminal device. Only after the authentication is successful can the wireless charging device wirelessly charge the device to be charged, that is, it is necessary to detect whether the terminal device complies with the wireless charging protocol.

[0061] Specifically, when the terminal device needs to be wirelessly charged, the user can place the terminal device on the wireless charging seat. At this time, the terminal device establishes a connection with the wireless charging seat, and the terminal device can send a communication signal to the wireless charging seat. The communication signal is used to check whether the terminal device complies with the wireless charging protocol. When the terminal device complies with the wireless charging protocol, it means that the terminal device supports the wireless fast charging function. In order to avoid damage to the terminal device during high-voltage and high-power wireless charging, it is necessary to obtain the charging output power and terminal temperature, and determine the working mode of the wireless charging system based on the charging output power and terminal temperature to achieve safe and efficient wireless charging. The charging output power is the charging power of the transmitter TX in the wireless charging seat.

[0062] When the terminal device does not comply with the wireless charging protocol, the operating mode of the first charge pump is determined to be the third mode, which is the A3 mode, that is, the ratio of the input voltage to the output voltage is 1:1, and the operating mode of the PMIC is determined to be the charging mode, and the lithium battery in the terminal device is charged normally through PMIC control.

[0063] S102: Determine an operating mode of the wireless charging system according to preset rules based on the charging output power and the terminal temperature. The preset rules include at least two control rules and an operating mode corresponding to each control rule.

[0064] In this step, the preset rule may be pre-set, and the preset rule may include a first control rule and a second control rule. For each different control rule, the corresponding working mode of each device in the wireless charging system is different. The devices in the wireless charging system may include a first charge pump, a second charge pump and a PMIC.

[0065] Optionally, as an implementation method, Figure 3 This is a flow chart of the wireless charging control method provided in the embodiment of the present application. Figure 3 As shown, the method includes:

[0066] S201. Determine whether the charging output power is greater than a preset power threshold.

[0067] S202: If the power is greater than a preset power threshold, determine the operating mode of the wireless charging system according to the terminal temperature and a first control rule.

[0068] S203: If the power is not greater than the preset power threshold, determine the working mode of the wireless charging system according to the terminal temperature and the second control rule.

[0069] For details, see Figure 4 As shown, when the terminal device starts wireless charging, it can be determined whether the terminal device complies with the wireless fast charging protocol. When it is determined that the terminal device complies with the wireless charging protocol, the charging output power can be obtained first, that is, the TX charging power is obtained, and it is determined whether the charging output power is greater than the preset power threshold X. The preset power threshold X can be customized according to the parameters of the actual terminal device. This is because the terminal device supports a variety of wireless charging seats, such as 10w, 20w, 30w, and 50w. Not all wireless charging seats can work under high voltage when in use. Only when the charging output power is greater than the preset power threshold, the maximum voltage output by the terminal device may be greater than 20V.

[0070] When it is determined that the charging output power is greater than the preset power threshold X, the terminal temperature and the first control rule can be determined to determine the working mode of the wireless charging system. By determining whether the terminal temperature is less than the first temperature threshold, when the terminal temperature is less than the first temperature threshold, it is determined that the working mode of the first charge pump is the first mode, the working mode of the second charge pump is the second mode, and the working mode of the PMIC is the charging mode, that is, the first charge pump Charge Pump 1 works in A3 mode, the second charge pump Charge Pump2 works in B2 mode, and the PMIC works in C mode. The A3 mode indicates that the ratio of the input voltage to the output voltage is 3:1, and the B2 mode indicates that the ratio of the input voltage to the output voltage is 2:1.

[0071] When the terminal temperature is not less than the first temperature threshold, it is determined whether the terminal temperature is less than the second temperature threshold. When the terminal temperature is less than the second temperature threshold, it is determined that the operating mode of the first charge pump is the second mode, the operating mode of the second charge pump is the second mode, and the operating mode of the PMIC is the charging mode, that is, the first charge pump Charge Pump 1 operates in the A2 mode, the second charge pump Charge Pump2 operates in the B2 mode, and the PMIC operates in the C mode. The A2 mode indicates that the ratio of the input voltage to the output voltage is 2:1, and the B2 mode indicates that the ratio of the input voltage to the output voltage is 2:1.

[0072] When the terminal temperature is not less than the second temperature threshold, it is determined that the working mode of the first charge pump is the second mode, and the working mode of the PMIC is the charging mode, that is, the first charge pump Charge Pump 1 works in the A2 mode, and the PMIC works in the C mode. The A2 mode indicates that the ratio of the input voltage to the output voltage is 2: 1. The first temperature threshold is less than the second temperature threshold.

[0073] Further, when it is determined that the charging output power is not greater than the preset power threshold X, the terminal temperature and the second control rule can be determined to determine the working mode of the wireless charging system. By determining whether the terminal temperature is less than the third temperature threshold, when it is determined that the terminal temperature is less than the third temperature threshold, the working mode of the first charge pump is determined to be the second mode, the working mode of the second charge pump is determined to be the second mode, and the working mode of the PMIC is the charging mode, that is, the first charge pump Charge Pump 1 works in A2 mode, the second charge pump Charge Pump2 works in B2 mode, and the PMIC works in C mode. The A2 mode indicates that the ratio of the input voltage to the output voltage is 2:1, and the B2 mode indicates that the ratio of the input voltage to the output voltage is 2:1.

[0074] When it is determined that the terminal temperature is not less than the third temperature threshold, the operating mode of the first charge pump is determined to be the second mode and the operating mode of the PMIC is the charging mode, that is, the first charge pump Charge Pump 1 operates in A2 mode and the PMIC operates in C mode.

[0075] S103: Control the wireless charging system to enter a working mode corresponding to the control rule.

[0076] When determining the working mode of the wireless charging system, a configuration file corresponding to the working mode can be obtained, in which parameters corresponding to the wireless charging system that complies with the control rules are configured, and the configuration file is parsed to control the wireless charging system to enter the working mode corresponding to the control rules, and the parameters of the first charge pump, the second charge pump and the PMIC in the wireless charging system are controlled to make it enter the corresponding working mode.

[0077] Exemplarily, when a terminal device needs to be wirelessly charged, a user can place the terminal device on a wireless charging stand. At this time, the terminal device establishes a connection with the wireless charging stand, and then determines whether it complies with the wireless charging protocol. When it is determined that it complies with the wireless charging protocol, the charging output power and terminal temperature can be obtained, and the working mode of each device in the wireless charging system can be determined according to preset rules. When it is determined that it does not comply with the wireless charging protocol, the working mode of the first charge pump Charge Pump1 can be determined to be the third mode, that is, the ratio of the input voltage to the output voltage is 1:1, and the working mode of the PMIC is determined to be the charging mode, and the lithium battery is charged normally through the PMIC control.

[0078] When the terminal device complies with the wireless charging protocol, it means that the terminal device supports the wireless fast charging function, can obtain the charging output power, and determine whether the charging output power is greater than the preset power threshold. If the charging output power is greater than the preset power threshold, it means that the terminal device may be in a high-voltage state, and then determine whether the terminal temperature is less than the first temperature threshold. When the terminal temperature is less than the first temperature threshold, it is determined that the first charge pump Charge Pump 1 works in A3 mode, the second charge pump Charge Pump2 works in B2 mode, and the PMIC works in C mode. The A3 mode has an input voltage to output voltage ratio of 3:1, and the B2 mode has an input voltage to output voltage ratio of 2:1. That is to say, for example, when the charging output power is 30W, the corresponding output voltage and output current are 30V and 1A respectively, then the first charge pump Charge Pump 1 can be used to perform a first-stage voltage reduction, and the voltage is reduced to 10V / 3A by 3:1, and then the second charge pump Charge Pump 2 can be used to perform a second-stage voltage reduction, and the voltage is reduced to 5V / 6A by 2:1, so that it reaches the battery voltage of 5V, so that the power is charged into the battery through the PMIC.

[0079] When the terminal temperature is not less than the first temperature threshold, it is determined whether the terminal temperature is less than the second temperature threshold. When the terminal temperature is less than the second temperature threshold, it is determined that the first charge pump Charge Pump 1 operates in A2 mode, the second charge pump Charge Pump 2 operates in B2 mode, and the PMIC operates in C mode. The A2 mode is a ratio of input voltage to output voltage of 2:1, and the B2 mode is a ratio of input voltage to output voltage of 2:1. That is to say, at this time, when the temperature is high and the maximum output voltage and output current are 20V / 1A respectively, the first charge pump Charge Pump 1 can be used to perform a first-stage voltage reduction, and the voltage is reduced to 10V / 2A through 2:1, and then the second charge pump Charge Pump 2 can be used to perform a second-stage voltage reduction, and the voltage is reduced to 5V / 6A through 2:1, so that it reaches the battery voltage of 5V, so that the power is charged into the battery through the PMIC.

[0080] When the terminal temperature is not less than the second temperature threshold, it is determined that the first charge pump Charge Pump 1 operates in A2 mode and the PMIC operates in C mode. The A2 mode has a ratio of input voltage to output voltage of 2:1. That is to say, the temperature of the terminal device is relatively high at this time. Because the terminal itself will generate heat during the charging process, the operating voltage is below 20V. For example, the charging output power is 10V / 1A. Since a particularly large charging output power is not required, the second charge pump Charge Pump 2 does not need to work. Only the first charge pump Charge Pump 1 is required to operate in A2 mode, which will be stepped down to 5V / 6A by 2:1 to reach the battery voltage of 5V, and the power is charged into the battery through the PMIC.

[0081] Further, when the charging output power is not greater than the preset power threshold, the terminal temperature and the second control rule can be judged to determine the working mode of the wireless charging system. By judging whether the terminal temperature is less than the third temperature threshold, when it is judged that the terminal temperature is less than the third temperature threshold, it is determined that the first charge pump Charge Pump 1 works in A2 mode, the second charge pump Charge Pump 2 works in B2 mode, and the PMIC works in C mode. The A2 mode is a ratio of input voltage to output voltage of 2:1, and the B2 mode is a ratio of input voltage to output voltage of 2:1. In other words, it does not support such a large power, and the maximum output voltage will not exceed 20V. If the temperature is relatively low, it is hoped that high-power charging can be performed. For example, when the maximum output voltage and output current are 20V / 1A respectively, the first charge pump Charge Pump 1 can be used to perform a first-stage voltage reduction, and the voltage can be reduced to 10V / 2A by 2:1, and then the second charge pump Charge Pump 2 can be used to perform a second-stage voltage reduction, and the voltage can be reduced to 5V / 6A by 2:1, so that it reaches the battery voltage, so that the power is charged into the battery through the PMIC.

[0082] When the charging output power is not less than the third temperature threshold, it is determined that the first charge pump Charge Pump 1 works in A2 mode and the PMIC works in C mode. That is to say, the temperature of the terminal device is relatively high at this time. Because the terminal itself will generate heat during the charging process, the operating voltage must be below 20V. For example, if the charging output power is 10V / 1A, since a particularly large charging output power is not required, the second charge pump Charge Pump 2 does not need to work. Only the first charge pump Charge Pump 1 needs to work in A2 mode, which will be stepped down to 5V / 6A through 2:1 to reach the battery voltage, and the power is charged into the battery through the PMIC.

[0083] The wireless charging control method provided in the embodiment of the present application obtains the charging output power and the terminal temperature, and based on the charging output power and the terminal temperature, determines the working mode of the wireless charging system according to the preset rules, the preset rules include at least two control rules and the working mode corresponding to each control rule, and controls the wireless charging system to enter the working mode corresponding to the control rule. Since at least two control rules are set, the technical solution only needs to obtain the charging output power and the terminal temperature, can fully consider the influencing factors in the wireless charging process, and automatically control each device in the wireless charging system to enter the working mode corresponding to each control rule, thereby not only realizing fast and efficient wireless charging, but also ensuring the safety of wireless charging, avoiding the loss of charging coils, switches and other devices, reducing the heat during the charging process, and further improving the user experience.

[0084] on the other hand, Figure 5The structure diagram of a wireless charging control device provided in an embodiment of the present application is shown in FIG. The device may be a device in a terminal device, such as Figure 5 As shown, the device 300 includes:

[0085] An acquisition module 310 is used to acquire charging output power and terminal temperature;

[0086] A determination module 320, configured to determine the working mode of the wireless charging system according to preset rules based on the charging output power and the terminal temperature, wherein the preset rules include at least two control rules and a working mode corresponding to each control rule;

[0087] The control module 330 is used to control the wireless charging system to enter a working mode corresponding to the control rule.

[0088] Optionally, the determination module 320 is configured to:

[0089] Determine whether the charging output power is greater than a preset power threshold;

[0090] If the power is greater than a preset power threshold, determining the operating mode of the wireless charging system according to the terminal temperature and the first control rule;

[0091] If it is not greater than the preset power threshold, the operating mode of the wireless charging system is determined according to the terminal temperature and the second control rule.

[0092] Optionally, the determination module 320 is further configured to:

[0093] Determining whether the terminal temperature is less than a first temperature threshold;

[0094] When the temperature is less than the first temperature threshold, determining that the operating mode of the first charge pump is the first mode, the operating mode of the second charge pump is the second mode, and the operating mode of the PMIC is the charging mode;

[0095] When the temperature is not less than the first temperature threshold, determining whether the terminal temperature is less than the second temperature threshold, and the first temperature threshold is less than the second temperature threshold;

[0096] When the temperature is less than the second temperature threshold, it is determined that the operating mode of the first charge pump is the second mode, the operating mode of the second charge pump is the second mode, and the operating mode of the PMIC is the charging mode.

[0097] Optionally, the determination module 320 is further configured to:

[0098] When the terminal temperature is not less than the second temperature threshold, it is determined that the operating mode of the first charge pump is the second mode and the operating mode of the PMIC is the charging mode.

[0099] Optionally, the determination module 320 is further configured to:

[0100] Determining whether the terminal temperature is less than a third temperature threshold;

[0101] When the temperature is less than a third temperature threshold, determining that the operating mode of the first charge pump is the second mode, the operating mode of the second charge pump is the second mode, and the operating mode of the PMIC is the charging mode;

[0102] When the temperature is not less than the third temperature threshold, it is determined that the operating mode of the first charge pump is the second mode and the operating mode of the PMIC is the charging mode.

[0103] Optionally, the control module 330 is further used for:

[0104] Obtaining a configuration file corresponding to the working mode, wherein the configuration file is configured with parameters corresponding to the wireless charging system that complies with the control rules;

[0105] The configuration file is parsed to control the wireless charging system to enter a working mode corresponding to the control rule.

[0106] Optionally, the above device is also used for:

[0107] Determine whether the terminal device complies with the wireless charging protocol;

[0108] When the wireless charging protocol is not met, the operating mode of the first charge pump is determined to be the third mode and the operating mode of the PMIC is determined to be the charging mode.

[0109] When the wireless charging protocol is met, the charging output power and terminal temperature are obtained.

[0110] It can be understood that the functions of the functional modules of the wireless charging control device of this embodiment can be specifically implemented according to the method in the above method embodiment, and the specific implementation process can refer to the relevant description of the above method embodiment, which will not be repeated here.

[0111] In summary, in the wireless charging control device provided in the embodiment of the present application, the acquisition module acquires the charging output power and the terminal temperature, and determines the working mode of the wireless charging system according to the preset rules based on the charging output power and the terminal temperature through the determination module, and the preset rules include at least two control rules and the working mode corresponding to each control rule, and then controls the wireless charging system to enter the working mode corresponding to the control rule through the control module. Since at least two control rules are set, this technical solution only needs to acquire the charging output power and the terminal temperature, and can fully consider the influencing factors in the wireless charging process, and automatically control each device in the wireless charging system to enter the working mode corresponding to each control rule, thereby not only realizing fast and efficient wireless charging, but also ensuring the safety of wireless charging, avoiding the loss of charging coils, switches and other devices, and further improving the user experience.

[0112] on the other hand, Figure 6 A hardware structure diagram of a terminal device is provided for an embodiment of the present application. The terminal 100 may include a wireless communication unit 110, an A / V (audio / video) input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, an interface unit 170, a controller 180, a power supply unit 190, and the like. Figure 6 A terminal having various components is shown, but it should be understood that it is not required to implement all of the components shown. More or fewer components may be implemented instead. The elements of the terminal will be described in detail below.

[0113] The wireless communication unit 110 generally includes one or more components that allow radio communication between the terminal 100 and a wireless communication system or network. For example, the wireless communication unit may include at least one of a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short-range communication module 114, and a location information module 115.

[0114] The broadcast receiving module 111 receives broadcast signals and / or broadcast related information from an external broadcast management server via a broadcast channel. The broadcast channel may include a satellite channel and / or a terrestrial channel. The broadcast management server may be a server that generates and sends a broadcast signal and / or broadcast related information or a server that receives a previously generated broadcast signal and / or broadcast related information and sends it to the terminal. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and the like. Moreover, the broadcast signal may further include a broadcast signal combined with a TV or radio broadcast signal. The broadcast related information may also be provided via a mobile communication network, and in this case, the broadcast related information may be received by the mobile communication module 112. The broadcast signal may exist in various forms, for example, it may exist in the form of an electronic program guide (EPG) of digital multimedia broadcasting (DMB), an electronic service guide (ESG) of digital video broadcast handheld (DVB-H), and the like. The broadcast receiving module 111 may receive a signal broadcast using various types of broadcast systems. In particular, the broadcast receiving module 111 can receive digital broadcasts by using a digital broadcasting system such as multimedia broadcasting-terrestrial (DMB-T), digital multimedia broadcasting-satellite (DMB-S), digital video broadcasting-handheld (DVB-H), a data broadcasting system of forward link media (MediaFLO@), integrated service for terrestrial digital broadcasting (ISDB-T), etc. The broadcast receiving module 111 can be constructed to be suitable for various broadcasting systems that provide broadcast signals as well as the above-mentioned digital broadcasting systems. The broadcast signals and / or broadcast-related information received via the broadcast receiving module 111 can be stored in the memory 160 (or other types of storage media).

[0115] The mobile communication module 112 transmits and / or receives radio signals to and / or from at least one of a base station (e.g., an access point, a Node B, etc.), an external terminal, and a server. Such radio signals may include voice call signals, video call signals, or various types of data transmitted and / or received according to text and / or multimedia messages.

[0116] The wireless Internet module 113 supports the wireless Internet access of the terminal. The module can be coupled to the terminal internally or externally. The wireless Internet access technology involved in the module can include WLAN (Wireless LAN) (Wi-Fi), Wibro (Wireless Broadband), Wimax (Worldwide Interoperability for Microwave Access), HSDPA (High Speed ​​Downlink Packet Access), etc.

[0117] The short-range communication module 114 is a module for supporting short-range communication. Some examples of short-range communication technology include Bluetooth™, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and the like.

[0118] The location information module 115 is a module for checking or obtaining the location information of the terminal. A typical example of the location information module is GPS (Global Positioning System). According to current technology, the GPS module 115 calculates distance information and accurate time information from three or more satellites and applies triangulation to the calculated information, thereby accurately calculating three-dimensional current location information according to longitude, latitude and altitude. Currently, the method for calculating location and time information uses three satellites and corrects the error of the calculated location and time information by using another satellite. In addition, the GPS module 115 can calculate speed information by continuously calculating the current location information in real time.

[0119] The A / V input unit 120 is used to receive audio or video signals. The A / V input unit 120 may include a camera 121 and a microphone 1220, and the camera 121 processes the image data of a static picture or video obtained by an image capture device in a video capture mode or an image capture mode. The processed image frame may be displayed on the display unit 151. The image frame processed by the camera 121 may be stored in the memory 160 (or other storage medium) or sent via the wireless communication unit 110, and two or more cameras 1210 may be provided according to the configuration of the terminal. The microphone 122 may receive sound (audio data) via a microphone in a phone call mode, a recording mode, a voice recognition mode, and the like operating modes, and may process such sound into audio data. The processed audio (voice) data may be converted into a format output that can be sent to a mobile communication base station via the mobile communication module 112 in the case of a phone call mode. The microphone 122 may implement various types of noise elimination (or suppression) algorithms to eliminate (or suppress) noise or interference generated in the process of receiving and sending audio signals.

[0120] The user input unit 130 can generate key input data according to the command input by the user to control various operations of the terminal. The user input unit 130 allows the user to input various types of information, and may include a keyboard, a pot, a touch pad (e.g., a touch-sensitive component that detects changes in resistance, pressure, capacitance, etc. caused by being touched), a scroll wheel, a rocker, etc. In particular, when the touch pad is superimposed on the display unit 151 in the form of a layer, a touch screen can be formed.

[0121] The sensing unit 140 detects the current state of the terminal 100 (e.g., the open or closed state of the terminal 100), the position of the terminal 100, the presence or absence of a user's contact (i.e., touch input) with respect to the terminal 100, the orientation of the terminal 100, the acceleration or deceleration movement and direction of the terminal 100, etc., and generates a command or signal for controlling the operation of the terminal 100. For example, when the terminal 100 is implemented as a sliding-type mobile phone, the sensing unit 140 can sense whether the sliding-type phone is opened or closed. In addition, the sensing unit 140 can detect whether the power supply unit 190 provides power or whether the interface unit 170 is coupled to an external device.

[0122] The interface unit 170 serves as an interface through which at least one external device can be connected to the terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input / output (I / O) port, a video I / O port, a headphone port, and the like. The identification module may be a device that stores various information for verifying that the user uses the terminal 100 and may include a user identification module (UIM), a subscriber identification module (SIM), a universal subscriber identification module (USIM), and the like. In addition, the device having the identification module (hereinafter referred to as an "identification device") may take the form of a smart card, and thus, the identification device may be connected to the terminal 100 via a port or other connection means. The interface unit 170 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 100 or may be used to transmit data between the terminal and the external device.

[0123] In addition, when the terminal 100 is connected to an external base, the interface unit 170 can be used as a path through which power is provided from the base to the terminal 100 or can be used as a path through which various command signals input from the base are transmitted to the terminal. Various command signals or power input from the base can be used as signals for identifying whether the terminal is accurately installed on the base. The output unit 150 is configured to provide output signals (e.g., audio signals, video signals, alarm signals, vibration signals, etc.) in a visual, audio, and / or tactile manner. The output unit 150 may include a display unit 151, an audio output module 152, an alarm unit 153, and the like.

[0124] The display unit 151 may display information processed in the terminal 100. For example, when the terminal 100 is in a phone call mode, the display unit 151 may display a user interface (UI) or a graphical user interface (GUI) related to the call or other communications (e.g., text message transmission and reception, multimedia file downloading, etc.). When the terminal 100 is in a video call mode or an image capturing mode, the display unit 151 may display a captured image and / or a received image, a UI or GUI showing a video or image and related functions, and the like.

[0125] Meanwhile, when the display unit 151 and the touch pad are superimposed on each other in the form of a layer to form a touch screen, the display unit 151 can be used as an input device and an output device. The display unit 151 may include at least one of a liquid crystal display (LCD), a thin film transistor LCD (TFT-LCD), an organic light emitting diode (OLED) display, a flexible display, a three-dimensional (3D) display, and the like. Some of these displays may be configured to be transparent to allow a user to view from the outside, which may be referred to as a transparent display, and a typical transparent display may be, for example, a TOLED (transparent organic light emitting diode) display, and the like. According to a specific desired embodiment, the terminal 100 may include two or more display units (or other display devices), for example, the terminal may include an external display unit (not shown) and an internal display unit (not shown). The touch screen may be used to detect touch input pressure as well as a touch input position and a touch input area.

[0126] The audio output module 152 can convert the audio data received by the wireless communication unit 110 or stored in the memory 160 into an audio signal and output it as sound when the terminal is in a call signal receiving mode, a talk mode, a recording mode, a voice recognition mode, a broadcast receiving mode, etc. Moreover, the audio output module 152 can provide audio output related to a specific function performed by the terminal 100 (e.g., a call signal receiving sound, a message receiving sound, etc.). The audio output module 152 may include a speaker, a buzzer, etc.

[0127] The alarm unit 153 can provide an output to notify the terminal 100 of the occurrence of an event. Typical events may include call reception, message reception, key signal input, touch input, etc. In addition to audio or video output, the alarm unit 153 can provide outputs in different ways to notify the occurrence of an event. For example, the alarm unit 153 can provide an output in the form of vibration, and when a call, message or some other incoming communication (in coming communication) is received, the alarm unit 153 can provide a tactile output (i.e., vibration) to notify the user. By providing such a tactile output, even when the user's mobile phone is in the user's pocket, the user can recognize the occurrence of various events. The alarm unit 153 can also provide an output of the occurrence of a notification event via the display unit 151 or the audio output module 152.

[0128] The memory 160 may store software programs or the like for processing and controlling operations performed by the controller 180, or may temporarily store data that has been output or is to be output (e.g., a phone book, messages, still images, videos, etc.). Moreover, the memory 160 may store data on vibrations and audio signals of various patterns output when a touch is applied to the touch screen.

[0129] The memory 160 may include at least one type of storage medium, including a flash memory, a hard disk, a multimedia card, a card-type memory (e.g., an SD or DX memory, etc.), a random access memory (RAM), a static random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, an optical disk, etc. Moreover, the terminal 100 may cooperate with a network storage device that performs a storage function of the memory 160 through a network connection.

[0130] The controller 180 generally controls the overall operation of the terminal. For example, the controller 180 performs control and processing related to voice calls, data communications, video calls, etc. In addition, the controller 180 may include a multimedia module 1810 for reproducing (or playing back) multimedia data, and the multimedia module 1810 may be constructed within the controller 180 or may be constructed to be separated from the controller 180. The controller 180 may perform pattern recognition processing to recognize handwriting input or picture drawing input performed on the touch screen as characters or images.

[0131] The power supply unit 190 receives external power or internal power and provides appropriate power required to operate various elements and components under the control of the controller 180 .

[0132] The various embodiments described herein can be implemented using computer readable media such as computer software, hardware, or any combination thereof. For hardware implementation, the embodiments described herein can be implemented using at least one of an application specific integrated circuit (ASIC), a digital signal processor (DSP), a digital signal processing device (DSPD), a programmable logic device (PLD), a field programmable gate array (FPGA), a processor, a controller, a microcontroller, a microprocessor, an electronic unit designed to perform the functions described herein, and in some cases, such embodiments can be implemented in the controller 180. For software implementation, embodiments such as processes or functions can be implemented with separate software modules that allow the execution of at least one function or operation. The software code can be implemented by a software application (or program) written in any appropriate programming language, which can be stored in the memory 160 and executed by the controller 180.

[0133] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each box in the flow chart or block diagram can represent a module, a program segment or a part of the code, and the aforementioned module, program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs the specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0134] The units or modules involved in the embodiments of the present application may be implemented by software or by hardware. The described units or modules may also be provided in a processor, for example, may be described as: a processor comprising: an acquisition module, a determination module and a control module. Among them, the names of these units or modules do not constitute a limitation on the units or modules themselves under certain circumstances. For example, the acquisition module may also be described as a module "for obtaining the charging output power and the terminal temperature when it is determined that the terminal device complies with the wireless charging protocol".

[0135] As another aspect, the present application also provides a computer-readable storage medium, which may be included in the electronic device described in the above embodiment; or it may exist independently and not be assembled into the electronic device. The above computer-readable storage medium stores one or more programs, and when the above programs are used by one or more processors to execute the wireless charging control method described in the present application: obtaining the charging output power and the terminal temperature; based on the charging output power and the terminal temperature, determining the working mode of the wireless charging system according to preset rules, the preset rules include at least two control rules and the working mode corresponding to each control rule; controlling the wireless charging system to enter the working mode corresponding to the control rule.

[0136] In summary, the wireless charging control method, device, equipment and storage medium provided in the embodiments of the present application obtain the charging output power and the terminal temperature, and based on the charging output power and the terminal temperature, determine the working mode of the wireless charging system according to the preset rules, wherein the preset rules include at least two control rules and the working mode corresponding to each control rule, and control the wireless charging system to enter the working mode corresponding to the control rule. Since at least two control rules are set, the technical solution only needs to obtain the charging output power and the terminal temperature, and can fully consider the influencing factors in the wireless charging process, and automatically control each device in the wireless charging system to enter the working mode corresponding to each control rule, thereby not only realizing fast and efficient wireless charging, but also ensuring the safety of wireless charging, avoiding the loss of charging coils, switches and other devices, and further improving the user experience.

[0137] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A wireless charging control method, applied to a terminal device, wherein the terminal device includes a wireless charging system, characterized in that: The method includes: Obtain charging output power and terminal temperature; Based on the charging output power and the terminal temperature, determining the working mode of the wireless charging system according to preset rules, wherein the preset rules include at least two control rules and working modes corresponding to each of the control rules; controlling the wireless charging system to enter a working mode corresponding to the control rule, The preset rules include a first control rule and a second control rule, and based on the charging output power and the terminal temperature, the working mode of the wireless charging system is determined according to the preset rules, including: Determining whether the charging output power is greater than a preset power threshold; If the power is greater than the preset power threshold, determining the operating mode of the wireless charging system according to the terminal temperature and the first control rule; If it is not greater than the preset power threshold, the operating mode of the wireless charging system is determined according to the terminal temperature and the second control rule.

2. The method according to claim 1, characterized in that The wireless charging system includes a first charge pump, a second charge pump and a power management circuit PMIC. According to the terminal temperature and the first control rule, the working mode of the wireless charging system is determined, including: Determining whether the terminal temperature is less than a first temperature threshold; When the temperature is less than the first temperature threshold, determining that the operating mode of the first charge pump is the first mode, the operating mode of the second charge pump is the second mode, and the operating mode of the PMIC is the charging mode; When the temperature is not less than the first temperature threshold, determining whether the terminal temperature is less than a second temperature threshold, the first temperature threshold being less than the second temperature threshold; When the temperature is less than the second temperature threshold, it is determined that the operating mode of the first charge pump is the second mode, the operating mode of the second charge pump is the second mode, and the operating mode of the PMIC is the charging mode.

3. The method according to claim 2, characterized in that After determining whether the terminal temperature is less than a second temperature threshold, the method further includes: When the terminal temperature is not less than the second temperature threshold, it is determined that the operating mode of the first charge pump is the second mode and the operating mode of the PMIC is the charging mode.

4. The method according to claim 2, characterized in that: Determining the operating mode of the wireless charging system according to the terminal temperature and the second control rule includes: Determining whether the terminal temperature is less than a third temperature threshold; When the temperature is less than the third temperature threshold, determining that the operating mode of the first charge pump is the second mode, the operating mode of the second charge pump is the second mode, and the operating mode of the PMIC is the charging mode; When the temperature is not less than the third temperature threshold, it is determined that the operating mode of the first charge pump is the second mode and the operating mode of the PMIC is the charging mode.

5. The method according to claim 1, characterized in that Controlling the wireless charging system to enter a working mode corresponding to the control rule includes: Acquire a configuration file corresponding to the working mode, wherein the configuration file is configured with parameters corresponding to the wireless charging system that conforms to the control rule; The configuration file is parsed to control the wireless charging system to enter a working mode corresponding to the control rule.

6. The method according to claim 2, characterized in that Before acquiring the charging output power and the terminal temperature, the method further includes: Determining whether the terminal device complies with the wireless charging protocol; When the wireless charging protocol is not met, determining that the working mode of the first charge pump is the third mode and the working mode of the PMIC is the charging mode; When the wireless charging protocol is met, the charging output power and the terminal temperature are obtained.

7. A wireless charging control device, characterized in that: The device comprises: An acquisition module is used to obtain charging output power and terminal temperature; a determination module, configured to determine an operating mode of the wireless charging system according to preset rules based on the charging output power and the terminal temperature, wherein the preset rules include at least two control rules and an operating mode corresponding to each of the control rules; a control module, used to control the wireless charging system to enter a working mode corresponding to the control rule, The preset rules include a first control rule and a second control rule, and based on the charging output power and the terminal temperature, the working mode of the wireless charging system is determined according to the preset rules, including: Determining whether the charging output power is greater than a preset power threshold; If the power is greater than the preset power threshold, determining the operating mode of the wireless charging system according to the terminal temperature and the first control rule; If it is not greater than the preset power threshold, the operating mode of the wireless charging system is determined according to the terminal temperature and the second control rule.

8. A terminal device, characterized in that: The terminal device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor is configured to implement the wireless charging control method according to any one of claims 1 to 6 when executing the program.

9. A computer-readable storage medium having a computer program stored thereon, wherein the computer program is used to implement the wireless charging control method according to any one of claims 1 to 6.

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