CN117439291B - Wireless charging control method and system - Google Patents
Wireless charging control method and system Download PDFInfo
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- CN117439291B CN117439291B CN202311736248.XA CN202311736248A CN117439291B CN 117439291 B CN117439291 B CN 117439291B CN 202311736248 A CN202311736248 A CN 202311736248A CN 117439291 B CN117439291 B CN 117439291B
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- 238000005859 coupling reaction Methods 0.000 claims description 39
- 238000009825 accumulation Methods 0.000 claims description 24
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00304—Overcurrent protection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00309—Overheat or overtemperature protection
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Abstract
The application relates to the technical field of wireless charging and discloses a wireless charging control method and a system, wherein the method comprises the steps of firstly acquiring working parameters of a first transmitting coil and a second transmitting coil under the condition that the first transmitting coil receives a charging request instruction and the second transmitting coil does not perform wireless charging, judging whether the wireless charging equipment has overload of the transmitting coil according to the working parameters of the first transmitting coil and the second transmitting coil, and controlling a rotating mechanism to rotate to adjust positions of the first transmitting coil and the second transmitting coil so as to balance the use load of the first transmitting coil and the second transmitting coil if the overload of the transmitting coil of the wireless charging equipment is judged; therefore, the phenomena of frequency use and unbalanced load of the transmitting coil can be avoided, and the stable performance of the transmitting coil is ensured, so that the service life of the wireless charging equipment is prolonged.
Description
Technical Field
The invention relates to the technical field of wireless charging, in particular to a wireless charging control method and system.
Background
With the development of mobile electronic devices such as mobile phones, wireless charging technology is gradually going into thousands of home users. In the related art, in order to meet the requirement of simultaneously charging mobile devices such as a plurality of mobile phones in a family, the wireless charging device is designed to be provided with two or more wireless transmitting coils, and when the wireless charging device is used, the wireless charging device has the conditions of frequency of use and unbalanced load of the wireless transmitting coils, so that the performance of the transmitting coils which are frequently used is poor, the service life is shortened, and the service life of the whole wireless charging device is influenced.
Disclosure of Invention
The invention mainly aims to provide a wireless charging control method and system, and aims to solve the technical problems of using frequency and unbalanced load of a plurality of wireless charging coils of wireless charging equipment in the prior art.
To achieve the above object, in a first aspect, the present application provides a wireless charging control method applied to a wireless charging device, where the wireless charging device is configured to wirelessly charge a device to be charged, the wireless charging device includes a rotating mechanism, and a first transmitting coil and a second transmitting coil disposed on the rotating mechanism, and the method includes:
responding to the first transmitting coil to receive a charging request instruction;
under the condition that the second transmitting coil does not perform wireless charging work, working parameters of the first transmitting coil and the second transmitting coil are obtained;
judging whether the wireless charging equipment has overload of the transmitting coil or not according to the working parameters of the first transmitting coil and the second transmitting coil;
and if the wireless charging equipment has overload of the transmitting coil, controlling the rotating mechanism to rotate so as to adjust the positions of the first transmitting coil and the second transmitting coil, so as to balance the use loads of the first transmitting coil and the second transmitting coil.
Further, the working parameters include a current temperature or a working accumulation duration, and the judging whether the wireless charging device has overload of the transmitting coil according to the working parameters of the first transmitting coil and the second transmitting coil includes:
when the current temperature of the first transmitting coil and the current temperature of the second transmitting coil are both larger than or equal to a preset temperature value, judging that overload exists on the first transmitting coil and the second transmitting coil of the wireless charging equipment; or,
when the working accumulation duration of the first transmitting coil and the working accumulation duration of the second transmitting coil are both greater than or equal to a preset duration value, the first transmitting coil and the second transmitting coil of the wireless charging device are judged to be overloaded.
Further, the controlling the rotation mechanism to rotate adjusts positions of the first transmitting coil and the second transmitting coil includes:
and controlling the rotating mechanism to intermittently rotate so as to enable the first transmitting coil and the second transmitting coil to alternately change positions at preset interval time.
Further, the working parameters include a current temperature or a working accumulation duration, and the judging whether the wireless charging device has overload of the transmitting coil according to the working parameters of the first transmitting coil and the second transmitting coil includes:
when the current temperature of the first transmitting coil and the current temperature of the second transmitting coil are both smaller than a preset temperature value and the current temperature of the first transmitting coil is larger than the current temperature of the second transmitting coil, judging that the first transmitting coil overload exists in the wireless charging equipment; or,
and when the working accumulation time length of the first transmitting coil and the working accumulation time length of the second transmitting coil are smaller than a preset time length value, and the working accumulation time length of the first transmitting coil is longer than the working accumulation time length of the second transmitting coil, judging that the first transmitting coil overload exists in the wireless charging equipment.
Further, the controlling the rotation mechanism to rotate adjusts positions of the first transmitting coil and the second transmitting coil includes:
and controlling the rotating mechanism to rotate so as to enable the first transmitting coil and the second transmitting coil to perform position exchange.
Further, the controlling the rotation mechanism to rotate so as to make the first transmitting coil and the second transmitting coil perform position exchange includes:
acquiring a coupling degree value of the equipment to be charged and the first transmitting coil;
when the coupling degree value is determined to be larger than or equal to a first preset coupling degree value, controlling the rotating mechanism to rotate so as to perform 180-degree position exchange on the first transmitting coil and the second transmitting coil;
when the coupling degree value is smaller than a first preset coupling degree value, controlling the rotating mechanism to rotate, and after the first transmitting coil and the second transmitting coil are subjected to 180-degree position exchange, fine-tuning the position of the second transmitting coil until the coupling degree value of the second transmitting coil and the equipment to be charged reaches a coupling degree peak value.
Further, after determining whether the wireless charging device has overload of the transmitting coil according to the working parameters of the first transmitting coil and the second transmitting coil, the method further includes:
if the wireless charging equipment does not have overload of the transmitting coil, acquiring a coupling degree value of the equipment to be charged and the first transmitting coil;
and when the coupling degree value is determined to be smaller than or equal to a second preset coupling degree value, controlling the rotating mechanism to rotate so as to adjust the position of the first transmitting coil until the coupling degree value reaches a coupling degree peak value.
Further, after the first transmitting coil receives the charging request instruction, the method further includes:
and the second transmitting coil does not detect a charging request instruction within a preset duration, and the second transmitting coil is judged not to perform wireless charging work.
Further, before the working parameters of the first transmitting coil and the second transmitting coil are obtained, the method further includes:
acquiring the transmitting power of a first transmitting coil;
and determining that the transmitting power of the first transmitting coil is larger than or equal to the preset transmitting power, and acquiring working parameters of the first transmitting coil and the second transmitting coil.
In a second aspect, the present application further provides a wireless charging control system, including a wireless charging device, a memory, and a processor, where the wireless charging device includes a rotating mechanism, a first transmitting coil and a second transmitting coil disposed on the rotating mechanism, the rotating mechanism includes a turntable, a hollow rotating shaft connected to a center of the turntable, and a driving motor engaged with the hollow rotating shaft, and the memory is used for storing program codes, and the processor is used for calling the program codes to execute the method according to the first aspect.
Compared with the prior art, the wireless charging control method provided by the application is characterized in that firstly, under the condition that a first transmitting coil receives a charging request instruction and a second transmitting coil does not perform wireless charging work, working parameters of the first transmitting coil and the second transmitting coil are obtained, then whether the wireless charging equipment has overload of the transmitting coil or not is judged according to the working parameters of the first transmitting coil and the second transmitting coil, if the overload of the transmitting coil of the wireless charging equipment is judged, a rotating mechanism is controlled to rotate to adjust positions of the first transmitting coil and the second transmitting coil so as to balance the use load of the first transmitting coil and the second transmitting coil; that is, in the wireless charging process, the real-time judgment of the load is performed according to the working parameters of the two wireless transmitting coils, and the position adjustment of the first transmitting coil and the second transmitting coil is performed according to the load condition so as to balance the use loads of the first transmitting coil and the second transmitting coil; therefore, the phenomena of frequency use and unbalanced load of the transmitting coil can be avoided, and the stable performance of the transmitting coil is ensured, so that the service life of the wireless charging equipment is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a wireless charging system according to some embodiments of the present application;
fig. 2 is a schematic structural diagram of a wireless charging device according to some embodiments of the present application;
fig. 3 is a flow chart of a wireless charging control method according to some embodiments of the present application;
fig. 4 is a schematic diagram of a hardware structure of a wireless charging system according to some embodiments of the present application.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, "and/or" throughout this document includes three schemes, taking a and/or B as an example, including a technical scheme, a technical scheme B, and a technical scheme that both a and B satisfy; in addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
To solve the problems in the prior art, the present application proposes a wireless charging control method, applied to a wireless charging device, as shown in fig. 1-2, where the wireless charging device is used for wirelessly charging a to-be-charged device, the to-be-charged device may be a mobile device with a wireless charging function, such as a mobile phone, an electronic watch, a tablet, etc., the wireless charging device 110 includes a rotating mechanism, a first transmitting coil 114 and a second transmitting coil 115 disposed on the rotating mechanism, the rotating mechanism includes a turntable 111, a hollow rotating shaft 112 connected to the center of the turntable, and a driving motor 113 engaged with the hollow rotating shaft, the center of the hollow rotating shaft 112 is provided with a wire passing hole for arrangement of a power line, the wireless charging system further includes a position feedback member and a position sensor (not shown), the position feedback member is disposed on the turntable and opposite to the first transmitting coil and/or the second transmitting coil, and the position sensor is disposed on a base of the wireless charging device and opposite to the position feedback member, and the position feedback member is used for positioning the turntable 111 in a rotating process, so as to precisely control the positions of the first transmitting coil and the second transmitting coil, and, when receiving a position adjustment instruction, the driving motor 113, and when, driving, rotating, and, driving, transmitting, and adjusting, the first transmitting, and second, and moving, position, and adjusting, position.
It should be noted that, the present application only improves the structure and the charging control method of the wireless charging device, and does not relate to the improvement of the charging power transmitting and receiving circuit and the wireless charging principle, so that the present application does not describe the electromagnetic signal transmitting and receiving of the wireless charging process in order to complete the wireless charging.
It can be understood that the mobile phone can be placed at the corresponding position of the first transmitting coil 114 of the wireless charging device for charging, can also be placed at the corresponding position of the second transmitting coil 115, and can also be used for simultaneously charging when two mobile phones are respectively placed at the corresponding positions of the first transmitting coil 114 and the second transmitting coil 115.
In one use scenario, for example, after the user a places the mobile phone at the corresponding position of the first transmitting coil 114 and charges the mobile phone, the user B places the mobile phone at the corresponding position of the first transmitting coil 114 to charge the mobile phone, so that the charging performance of the transmitting coil is easily reduced and the service life is shortened due to the high-frequency and high-load use of the first transmitting coil 114.
In other usage scenarios, for example, at a certain moment, the cumulative duration of the usage of the first transmitting coil 114 reaches 20 hours, and the cumulative duration of the usage of the second transmitting coil 115 reaches only 4 hours, at this time, the user places the mobile phone at the corresponding position of the first transmitting coil 114 to charge, so that the charging performance of the first transmitting coil 114 is easily reduced and the service life is easily shortened because the first transmitting coil 114 is generally in a high-frequency and high-load usage state.
Therefore, the method and the device for wireless charging of the wireless transmitting coil carry out real-time judgment on the use load according to the working parameters of the two wireless transmitting coils in the wireless charging process, and carry out position adjustment of the first transmitting coil and the second transmitting coil according to the load condition so as to balance the use loads of the first transmitting coil and the second transmitting coil.
It should be noted that, the overload of the transmitting coil related to the present application may refer to a situation that the coil temperature is too high and the coil continues to be used for a long time when the transmitting coil is used, in this case, if the transmitting coil is not cooled sufficiently and has a rest, the charging efficiency and performance of the transmitting coil will be reduced when the transmitting coil works under a high load for a long time; overload of the transmitting coil can also mean that the total using time exceeds the preset using time, and in this case, long-term high-load operation of the transmitting coil can also lead to degradation of charging efficiency and performance of the transmitting coil.
Based on this, the present application proposes a wireless charging control method, which includes:
s100, responding to a first transmitting coil to receive a charging request instruction;
the charging request instruction can be sensed by the MCU, for example, if the MCU senses that the first transmitting coil is powered up, the wireless charging equipment is arranged at the first transmitting coil, so that the charging request instruction is triggered; the wireless charging device can also sense through a sensor, and by way of example, the pressure sensors are arranged at the corresponding positions of the first transmitting coil and the second transmitting coil, and when the pressure sensor at the position of the first transmitting coil detects a pressure value, the wireless charging device is indicated to be arranged at the position of the first transmitting coil, so that a charging request instruction is triggered.
In an embodiment, after receiving the charging request instruction in response to the first transmitting coil, the method further includes:
and judging that the second transmitting coil does not perform wireless charging work when the second transmitting coil does not detect a charging request instruction within a preset time length.
Specifically, in a certain period of time when the first transmitting coil receives the charging request instruction, if the second transmitting coil does not detect the charging request instruction, it is indicated that no equipment to be charged is placed on the second transmitting coil for charging in the period of time, that is, it is indicated that the second transmitting coil does not perform wireless charging work, and the second transmitting coil is in an idle state.
S200, under the condition that the second transmitting coil does not perform wireless charging work, working parameters of the first transmitting coil and the second transmitting coil are obtained;
it can be appreciated that when the first transmitting coil begins to operate, the second transmitting coil is already operating, and no position adjustment is necessary because both the first transmitting coil and the second transmitting coil need to operate; when the first transmitting coil starts to work, the second transmitting coil does not work, and at the moment, if the state of the second transmitting coil is better than that of the first transmitting coil, the second transmitting coil is necessary to be adjusted to the position of the first transmitting coil so as to replace the first transmitting coil to charge the equipment to be charged, so that the work load of the first transmitting coil is reduced, and the work loads of the first transmitting coil and the second transmitting coil are balanced; when the first transmitting coil starts to work, the second transmitting coil does not work, but the state of the second transmitting coil is not better than that of the first transmitting coil, and at the moment, the position adjustment is not necessary; in a special state, when the first transmitting coil starts to work, the second transmitting coil does not work, but the state of the second transmitting coil and the state of the first transmitting coil are not good, and at this time, special adjustment needs to be performed on the second transmitting coil and the first transmitting coil, for example, the first transmitting coil and the second transmitting coil work alternately so as to balance the working loads of the first transmitting coil and the second transmitting coil.
The "state" of the transmitting coil is good or bad, and can be judged by the working parameters of the first transmitting coil and the second transmitting coil, wherein the working parameters can be the working parameters representing the current state, such as the current temperature, the current transmitting power and the like, and can also be the working parameters representing the whole state, such as the total historical working duration, the total transmitting power and the like.
S300, judging whether the wireless charging equipment has overload of the transmitting coil according to the working parameters of the first transmitting coil and the second transmitting coil;
the working parameters include the current temperature, and if the current temperature of the first transmitting coil and the current temperature of the second transmitting coil are both higher, for example, if the current temperature is greater than or equal to a preset temperature value, the states of the first transmitting coil and the second transmitting coil are both poor, that is, the first transmitting coil and the second transmitting coil of the wireless charging device are both overloaded. If the current temperature of the first transmitting coil and the current temperature of the second transmitting coil are both smaller than the preset temperature value, and the current temperature of the first transmitting coil is larger than the current temperature of the second transmitting coil, the state of the second transmitting coil is better than that of the first transmitting coil, namely the first transmitting coil of the wireless charging device is overloaded, and the second transmitting coil is not overloaded relative to the first transmitting coil.
The working parameters include working accumulation time length, and if the working accumulation time length of the first transmitting coil and the working accumulation time length of the second transmitting coil are both larger, for example, if the working accumulation time length of the first transmitting coil and the working accumulation time length of the second transmitting coil are both larger than or equal to a preset time length value, the states of the first transmitting coil and the second transmitting coil are not good, that is, the first transmitting coil and the second transmitting coil of the wireless charging device are overloaded; if the working accumulation time length of the first transmitting coil and the working accumulation time length of the second transmitting coil are smaller than the preset time length value, and the working accumulation time length of the first transmitting coil is larger than the working accumulation time length of the second transmitting coil, the state of the second transmitting coil is better than that of the first transmitting coil, namely the first transmitting coil of the wireless charging device is overloaded, and the second transmitting coil is not overloaded relative to the first transmitting coil.
And S400, if the wireless charging equipment has overload of the transmitting coil, controlling the rotating mechanism to rotate so as to adjust the positions of the first transmitting coil and the second transmitting coil, so as to balance the use loads of the first transmitting coil and the second transmitting coil.
In an embodiment, if the first transmitting coil and the second transmitting coil of the wireless charging device are overloaded, at this time, no matter the first transmitting coil continues to be under high load and works for a long time or the second transmitting coil continues to be under high load and works for a long time, the performance of the wireless charging device is greatly affected, so that in order to balance the working loads of the first transmitting coil and the second transmitting coil, the charging efficiency is ensured, the service life is prolonged, and the rotating mechanism is controlled to intermittently rotate so as to make the first transmitting coil and the second transmitting coil perform position alternation for a preset interval duration, so that the first transmitting coil and the second transmitting coil alternately work to charge the device to be charged.
In another embodiment, if the first transmitting coil of the wireless charging device is overloaded and the second transmitting coil is not overloaded, when the first transmitting coil receives the charging command to charge, the rotating mechanism is controlled to rotate to make the first transmitting coil and the second transmitting coil perform position exchange, so that the second transmitting coil replaces the first transmitting coil to perform wireless charging, and further, the working loads of the first transmitting coil and the second transmitting coil are balanced, so that the charging efficiency is ensured, and the service life is prolonged.
In an embodiment, controlling the rotation mechanism to rotate so as to make the first transmitting coil and the second transmitting coil perform position exchange includes:
acquiring a coupling degree value of equipment to be charged and a first transmitting coil;
when the coupling degree value is determined to be larger than or equal to a first preset coupling degree value, controlling the rotating mechanism to rotate so as to perform 180-degree position exchange on the first transmitting coil and the second transmitting coil;
when the coupling degree value is smaller than the first preset coupling degree value, the rotating mechanism is controlled to rotate, after the first transmitting coil and the second transmitting coil are subjected to 180-degree position exchange, the position of the second transmitting coil is subjected to fine adjustment until the coupling degree value of the second transmitting coil and the equipment to be charged reaches a coupling degree peak value.
Specifically, when a user places a mobile phone on a wireless charging device to charge, the placed position is often not optimal, that is, a certain position deviation exists, so that the coupling degree between a wireless receiving coil of the device to be charged and a wireless transmitting coil of the wireless charging device is not in an optimal state, and thus the charging efficiency is affected. Therefore, in the process of carrying out position adjustment on the first transmitting coil and the second transmitting coil, the coupling degree value of the equipment to be charged and the first transmitting coil is detected, when the coupling degree value is larger than or equal to a first preset coupling degree value, the position where the equipment to be charged is placed by a user is relatively accurate, at the moment, the rotating mechanism is directly controlled to rotate to carry out 180-degree position exchange on the first transmitting coil and the second transmitting coil, when the coupling degree value is smaller than the first preset coupling degree value, the position where the equipment to be charged is inaccurately placed by the user, larger deviation exists, and at the moment, after the rotating mechanism is controlled to rotate to carry out 180-degree position exchange on the first transmitting coil and the second transmitting coil, the position of the second transmitting coil is finely adjusted until the coupling degree value of the second transmitting coil and the equipment to be charged reaches a coupling degree peak value, so that the charging efficiency of the wireless charging equipment is improved.
The first transmitting coil starts to work, and the second transmitting coil does not work, and whether the positions of the first transmitting coil and the second transmitting coil need to be adjusted is influenced by not only the working states of the first transmitting coil and the second transmitting coil, but also other factors, such as the transmitting power of the first transmitting coil and the working state of the rotating mechanism.
Thus, in an embodiment, before acquiring the working parameters of the first transmitting coil and the second transmitting coil, the method further comprises:
acquiring the transmitting power of a first transmitting coil;
and determining that the transmitting power of the first transmitting coil is larger than or equal to the preset transmitting power, and acquiring working parameters of the first transmitting coil and the second transmitting coil.
Specifically, when the first transmitting coil receives a charging instruction and the second transmitting coil is not in operation, the transmitting power of the first transmitting coil needs to be judged at first, if the transmitting power of the first transmitting coil is smaller and smaller than the preset transmitting power at the moment, even if the state of the first transmitting coil is not good and the state of the second transmitting coil is not good, the charging performance and the service life of the first transmitting coil are not greatly influenced because the output power is not great, and the first transmitting coil can be continuously operated at the moment without judging the working states of the first transmitting coil and the second transmitting coil to adjust the positions of the first transmitting coil and the second transmitting coil; if the transmitting power of the first transmitting coil is larger and is larger than or equal to the preset transmitting power, the working states of the first transmitting coil and the second transmitting coil need to be judged at the moment so as to adjust the positions of the first transmitting coil and the second transmitting coil. The processing mode can reduce the rotation frequency of the rotating mechanism, and the position is not adjusted under the condition of lower output emission power, so that the service life of the rotating mechanism is prolonged.
For example, when the electronic device such as a mobile phone and a tablet is charged with the last 10% of the electric quantity, the charging power is reduced, and therefore, the transmitting power of the transmitting coil is also reduced. In a small-power-consumption electronic device such as a wristwatch, the entire charging power is low when wireless charging is performed, and thus the transmission power of the transmission coil is also low. Therefore, in the case of low transmission power for the above-described transmission coil, the operation parameters of the first transmission coil and the second transmission coil may not be acquired, and the operation states of the first transmission coil and the second transmission coil may not be determined.
Based on the above, the wireless charging control method of the present application performs real-time judgment of the coil load according to the working parameters of the two wireless transmitting coils in the wireless charging process, and performs position adjustment of the first transmitting coil and the second transmitting coil according to the coil load condition, so as to balance the use loads of the first transmitting coil and the second transmitting coil; therefore, the phenomena of frequency use and unbalanced load of the transmitting coil can be avoided, and the stable performance of the transmitting coil is ensured, so that the service life of the wireless charging equipment is prolonged.
Referring to fig. 4, fig. 4 is a schematic hardware structure diagram of the wireless charging system provided in the embodiment of the present application, where the wireless charging system 100 includes a wireless charging device 110 and a memory 130, and a processor 120, the wireless charging device 110 includes a rotating mechanism and a first transmitting coil 114 and a second transmitting coil 115 disposed on the rotating mechanism, the rotating mechanism includes a turntable 111, a hollow rotating shaft 112 connected to the center of the turntable, and a driving motor 113 engaged with the hollow rotating shaft, a wire passing hole is disposed in the center of the hollow rotating shaft 112 for arrangement of a power line, the wireless charging system further includes a position feedback member and a position sensor (not shown), the position feedback member is disposed on the turntable and opposite to the first transmitting coil and/or the second transmitting coil, the position sensor is disposed on a base of the wireless charging device and opposite to the position feedback member, and the position feedback member is used for positioning during rotation of the turntable 111, thereby precisely controlling positions of the first transmitting coil and the second transmitting coil.
Wherein the processor 120 is configured to provide computing and control capabilities to control the wireless charging system to perform corresponding tasks, for example, to control the wireless charging system to perform the wireless charging control method in any of the above method embodiments, the method comprising: responding to the first transmitting coil to receive a charging request instruction; under the condition that the second transmitting coil does not perform wireless charging work, working parameters of the first transmitting coil and the second transmitting coil are obtained; judging whether the wireless charging equipment has overload of the transmitting coil or not according to the working parameters of the first transmitting coil and the second transmitting coil; if the wireless charging equipment has overload of the transmitting coil, the rotating mechanism is controlled to rotate to adjust the positions of the first transmitting coil and the second transmitting coil so as to balance the use load of the first transmitting coil and the second transmitting coil.
The processor 120 may be a general-purpose processor including a central processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), a hardware chip, or any combination thereof; it may also be a digital signal processor (Digital Signal Processing, DSP), application specific integrated circuit (ApplicationSpecific Integrated Circuit, ASIC), programmable logic device (programmable logic device, PLD), or a combination thereof. The PLD may be a complex programmable logic device (complex programmable logic device, CPLD), a field-programmable gate array (field-programmable gate array, FPGA), general-purpose array logic (genericarray logic, GAL), or any combination thereof.
The memory 130 is used as a non-transitory computer readable storage medium, and may be used to store non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions/modules corresponding to the wireless charging control method in the embodiments of the present application. The processor 120 may implement the wireless charging control method in any of the method embodiments described above by running non-transitory software programs, instructions, and modules stored in the memory 130.
In particular, the memory 802 may include Volatile Memory (VM), such as random access memory (random access memory, RAM); the memory 130 may also include a non-volatile memory (NVM), such as a read-only memory (ROM), a flash memory (flash memory), a hard disk (HDD) or a Solid State Drive (SSD), or other non-transitory solid state storage devices; memory 130 may also include a combination of the above types of memory.
In summary, the wireless charging system of the present application adopts the technical solution of any one of the embodiments of the wireless charging control method, so at least the beneficial effects brought by the technical solution of the foregoing embodiments are not described in detail herein.
The present application also provides a computer-readable storage medium, such as a memory including program code executable by a processor to perform the wireless charging control method of the above embodiments. For example, the computer readable storage medium may be Read-Only Memory (ROM), random-access Memory (Random Access Memory, RAM), compact disc Read-Only Memory (CDROM), magnetic tape, floppy disk, optical data storage device, and the like.
Embodiments of the present application also provide a computer program product comprising one or more program codes stored in a computer-readable storage medium. The processor of the electronic device reads the program code from the computer-readable storage medium, and the processor executes the program code to complete the steps of the wireless charging control method provided in the above-described embodiments.
It will be appreciated by those of ordinary skill in the art that all or part of the steps of implementing the above embodiments may be implemented by hardware, or may be implemented by program code related hardware, where the program may be stored in a computer readable storage medium, where the storage medium may be a read only memory, a magnetic disk or optical disk, etc.
It should be noted that the above-described apparatus embodiments are merely illustrative, and that the units described as separate units may or may not be physically separate, and that units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
From the above description of embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus a general purpose hardware platform, or may be implemented by hardware. Those skilled in the art will appreciate that all or part of the processes in the methods of the above embodiments may be implemented by a computer program for instructing relevant hardware, and the program may be stored in a computer readable storage medium, and the program may include processes in the embodiments of the methods as above when executed. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a random-access Memory (Random Access Memory, RAM), or the like.
The foregoing description of the preferred embodiments of the present invention should not be construed as limiting the scope of the invention, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).
Claims (8)
1. The wireless charging control method is applied to wireless charging equipment, and is characterized in that the wireless charging equipment is used for wirelessly charging equipment to be charged, the wireless charging equipment comprises a rotating mechanism, and a first transmitting coil and a second transmitting coil which are arranged on the rotating mechanism, and the method comprises the following steps:
responding to the first transmitting coil to receive a charging request instruction;
under the condition that the second transmitting coil does not perform wireless charging work, working parameters of the first transmitting coil and the second transmitting coil are obtained;
judging whether the wireless charging equipment has overload of the transmitting coil or not according to the working parameters of the first transmitting coil and the second transmitting coil;
if the wireless charging equipment has overload of the transmitting coil, controlling the rotating mechanism to rotate so as to adjust the positions of the first transmitting coil and the second transmitting coil, so as to balance the use load of the first transmitting coil and the second transmitting coil;
the working parameters include the current temperature or the working accumulation duration, and the judging whether the wireless charging equipment has overload of the transmitting coil according to the working parameters of the first transmitting coil and the second transmitting coil comprises the following steps:
when the current temperature of the first transmitting coil and the current temperature of the second transmitting coil are both larger than or equal to a preset temperature value, judging that overload exists on the first transmitting coil and the second transmitting coil of the wireless charging equipment; or,
when the working accumulation duration of the first transmitting coil and the working accumulation duration of the second transmitting coil are both greater than or equal to a preset duration value, judging that the first transmitting coil and the second transmitting coil of the wireless charging equipment are overloaded;
the controlling the rotation mechanism to rotate to adjust the positions of the first transmitting coil and the second transmitting coil includes:
and controlling the rotating mechanism to intermittently rotate so as to enable the first transmitting coil and the second transmitting coil to alternately change positions at preset interval time.
2. The wireless charging control method according to claim 1, wherein the operating parameter includes a current temperature or an operating cumulative time period, and the determining whether the wireless charging device has a transmit coil overload according to the operating parameters of the first transmit coil and the second transmit coil includes:
when the current temperature of the first transmitting coil and the current temperature of the second transmitting coil are both smaller than a preset temperature value and the current temperature of the first transmitting coil is larger than the current temperature of the second transmitting coil, judging that the first transmitting coil overload exists in the wireless charging equipment; or,
and when the working accumulation time length of the first transmitting coil and the working accumulation time length of the second transmitting coil are smaller than a preset time length value, and the working accumulation time length of the first transmitting coil is longer than the working accumulation time length of the second transmitting coil, judging that the first transmitting coil overload exists in the wireless charging equipment.
3. The wireless charging control method of claim 2, wherein controlling the rotation of the rotation mechanism to adjust the positions of the first transmitting coil and the second transmitting coil comprises:
and controlling the rotating mechanism to rotate so as to enable the first transmitting coil and the second transmitting coil to perform position exchange.
4. The wireless charging control method of claim 3, wherein said controlling the rotation of the rotation mechanism to perform the position exchange of the first transmitting coil and the second transmitting coil comprises:
acquiring a coupling degree value of the equipment to be charged and the first transmitting coil;
when the coupling degree value is determined to be larger than or equal to a first preset coupling degree value, controlling the rotating mechanism to rotate so as to perform 180-degree position exchange on the first transmitting coil and the second transmitting coil;
when the coupling degree value is smaller than a first preset coupling degree value, controlling the rotating mechanism to rotate, and after the first transmitting coil and the second transmitting coil are subjected to 180-degree position exchange, fine-tuning the position of the second transmitting coil until the coupling degree value of the second transmitting coil and the equipment to be charged reaches a coupling degree peak value.
5. The method for controlling wireless charging according to claim 1, wherein the step of determining whether the wireless charging device has an overload of the transmitting coil according to the operating parameters of the first transmitting coil and the second transmitting coil further comprises:
if the wireless charging equipment does not have overload of the transmitting coil, acquiring a coupling degree value of the equipment to be charged and the first transmitting coil;
and when the coupling degree value is determined to be smaller than or equal to a second preset coupling degree value, controlling the rotating mechanism to rotate so as to adjust the position of the first transmitting coil until the coupling degree value reaches a coupling degree peak value.
6. The wireless charging control method of claim 1, wherein said responding to said first transmitting coil receiving a charging request command further comprises:
and the second transmitting coil does not detect a charging request instruction within a preset duration, and the second transmitting coil is judged not to perform wireless charging work.
7. The wireless charging control method of claim 1, wherein prior to obtaining the operating parameters of the first and second transmit coils, further comprising:
acquiring the transmitting power of a first transmitting coil;
and determining that the transmitting power of the first transmitting coil is larger than or equal to the preset transmitting power, and acquiring working parameters of the first transmitting coil and the second transmitting coil.
8. A wireless charging control system, comprising a wireless charging device, a memory and a processor, wherein the wireless charging device comprises a rotating mechanism, a first transmitting coil and a second transmitting coil arranged on the rotating mechanism, the rotating mechanism comprises a turntable, a hollow rotating shaft connected to the center of the turntable and a driving motor meshed with the hollow rotating shaft, the memory is used for storing program codes, and the processor is used for calling the program codes to execute the method of any one of claims 1 to 7.
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| CN103560597A (en) * | 2013-11-14 | 2014-02-05 | 中国矿业大学 | Efficient wireless electricity transmission system with adjustable power in large range and control method |
| CN116667555A (en) * | 2023-05-29 | 2023-08-29 | 中国第一汽车股份有限公司 | Wireless charging system, method, electronic equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102086345B1 (en) * | 2013-07-01 | 2020-03-09 | 엘지전자 주식회사 | Wireless power transmitting apparatus |
| CN105196888B (en) * | 2015-10-20 | 2017-05-17 | 西安特锐德智能充电科技有限公司 | Charge management system and method for electric vehicle charger |
| US20190237999A1 (en) * | 2018-02-01 | 2019-08-01 | The Boeing Company | Wireless Power Transfer for Recharging Aircraft Batteries |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560597A (en) * | 2013-11-14 | 2014-02-05 | 中国矿业大学 | Efficient wireless electricity transmission system with adjustable power in large range and control method |
| CN116667555A (en) * | 2023-05-29 | 2023-08-29 | 中国第一汽车股份有限公司 | Wireless charging system, method, electronic equipment and storage medium |
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