CN114123532A - Control method and control system for low-power-consumption wireless charging - Google Patents
Control method and control system for low-power-consumption wireless charging Download PDFInfo
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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
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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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
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
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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
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
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Abstract
The invention discloses a control method and a control system for low-power consumption wireless charging, wherein the control method comprises the following steps: after receiving a power supply input signal, acquiring a current value of a transmitting coil; judging whether the current value is lower than a set threshold value; if the current value is lower than the set threshold value, controlling the transmitting coil to enter an intermittent sleep mode, wherein the intermittent sleep mode is a mode for intermittently generating current; and if the current value is higher than the set threshold value, controlling the transmitting coil to enter a charging mode, wherein the charging mode is a mode of continuously generating current. In the invention, a current detection function is added to the transmitting terminal by utilizing the condition that different states of the receiving terminal of the wireless charging device correspond to the condition that the transmitting terminal has current difference, and then the transmitting coil is controlled by aiming at the different current states, thereby saving the standby power consumption.
Description
Technical Field
The invention relates to the technical field of wireless charging, in particular to a control method and a control system for low-power-consumption wireless charging.
Background
With the continuous development of wireless charging technology, the wireless charging technology is applied to more and more wireless charging scenes, such as wireless charging mobile phones, wireless charging toothbrushes and the like.
However, some wireless transmitting terminals, such as those used in wireless charging toothbrushes, cannot distinguish whether there is a receiving induction coil and whether it is in a charging state. This situation may cause the wireless transmitting terminal to be in a transmitting operating state as long as there is a power input, and may also generate a large standby current, generally a standby current of several tens of mA, in a standby state. Therefore, when the wireless transmitting terminal is plugged for a long time, the problems of waste of energy consumption, even heat generation and the like can be caused.
Disclosure of Invention
The invention discloses a control method and a control system for low-power-consumption wireless charging, which are used for solving the problem that some wireless transmitting terminals are always in a transmitting working state as long as power supply input exists in the prior art.
In order to solve the problems, the invention adopts the following technical scheme:
the control method for the low-power wireless charging is provided, and comprises the following steps:
after receiving a power supply input signal, acquiring a current value of a transmitting coil;
judging whether the current value is lower than a set threshold value;
if the current value is lower than a set threshold value, controlling the transmitting coil to enter an intermittent sleep mode, wherein the intermittent sleep mode is a mode for intermittently generating current;
and if the current value is higher than the set threshold value, controlling the transmitting coil to enter a charging mode, wherein the charging mode is a mode of continuously generating current.
Optionally, the default mode of the wireless charging is an intermittent sleep mode, and the current value of the transmitting coil is obtained after receiving the power input signal, specifically including the steps of:
and after receiving the power input signal, intermittently acquiring the current value of the transmitting coil.
Optionally, if the current value is lower than the set threshold, the transmitting coil is controlled to enter an intermittent sleep mode, specifically including the steps of:
and if the current value is lower than the set threshold value for at least two times, controlling the transmitting coil to enter an intermittent sleep mode.
Optionally, if the current value is higher than the set threshold, the transmitting coil is controlled to enter a charging mode, which specifically includes the steps of:
and if the current value is higher than the set threshold value once, controlling the transmitting coil to enter a charging mode.
Optionally, the wireless charging default mode is a charging mode, and the current value of the transmitting coil is obtained after receiving the power input signal, specifically including the steps of:
and after receiving the power supply input signal, acquiring the current value of the transmitting coil in real time.
Optionally, if the current value is lower than the set threshold, the transmitting coil is controlled to enter an intermittent sleep mode, specifically including the steps of:
and if the current value is continuously lower than the set threshold value within the set time, controlling the transmitting coil to enter an intermittent sleep mode.
Optionally, if the current value is higher than the set threshold, the transmitting coil is controlled to enter a charging mode, which specifically includes the steps of:
and if the current value is continuously higher than the set threshold value within the set time, controlling the transmitting coil to enter a charging mode.
Still provide the control system that a low-power consumption is wireless charges, include:
the current acquisition unit acquires the current value of the transmitting coil after receiving a power input signal;
the judging unit is used for judging whether the current value is lower than a set threshold value or not;
the control unit controls the transmitting coil to enter an intermittent sleep mode when the current value is lower than a set threshold value, and controls the transmitting coil to enter a charging mode when the current value is higher than the set threshold value, wherein the intermittent sleep mode is a mode for intermittently generating current, and the charging mode is a mode for continuously generating current.
Optionally, if the default mode of the wireless charging is an intermittent sleep mode, the current obtaining unit is specifically configured to:
and after receiving the power input signal, intermittently acquiring the current value of the transmitting coil.
Optionally, the control unit is specifically configured to:
and if the current value is lower than the set threshold value for at least two times, controlling the transmitting coil to enter an intermittent sleep mode.
Optionally, the control unit is specifically configured to:
and if the current value is higher than the set threshold value once, controlling the transmitting coil to enter a charging mode.
Optionally, if the default mode of the wireless charging is a charging mode, the current obtaining unit is specifically configured to:
and after receiving the power supply input signal, acquiring the current value of the transmitting coil in real time.
Optionally, the control unit has a controller for:
and if the current value is continuously lower than the set threshold value within the set time, controlling the transmitting coil to enter an intermittent sleep mode.
Optionally, the control unit is specifically configured to:
and if the current value is continuously higher than the set threshold value within the set time, controlling the transmitting coil to enter a charging mode.
The technical scheme adopted by the invention can achieve the following beneficial effects:
the control method utilizes different states of the receiving end of the wireless charging device to correspond to the situation that the transmitting end has current difference, adds a current detection function to the transmitting end, and then controls the transmitting coil of the transmitting end according to different current states, thereby saving standby power consumption.
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In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below to form a part of the present invention, and the exemplary embodiments and the description thereof illustrate the present invention and do not constitute a limitation of the present invention. In the drawings:
fig. 1 is a flowchart of a control method for low power consumption wireless charging according to an embodiment of the present invention;
fig. 2 is a diagram illustrating an operation mode of the wireless charging according to the embodiment of the present invention;
fig. 3 is a schematic structural diagram of a low-power wireless charging control system according to an embodiment of the present invention.
Wherein the following reference numerals are specifically included in figures 1-3:
a current acquisition unit-1; a judgment unit-2; a control unit-3.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The control method of the low-power wireless charging of the invention, as shown in fig. 1, comprises the steps of:
step S10, after the current obtaining unit 1 receives the power input signal, obtaining the current value of the transmitting coil;
step S20, the judging unit 2 judges whether the current value is lower than the set threshold, if the current value is lower than the set threshold, the step S30 is executed, otherwise, the step S40 is executed;
step S30, the control unit 3 controls the transmitting coil to enter an intermittent sleep mode, wherein the intermittent sleep mode is a mode for intermittently generating current;
in step S40, the control unit 3 controls the transmitting coil to enter a charging mode, wherein the charging mode is a mode in which current is generated uninterruptedly.
The control method utilizes different states of the receiving end of the wireless charging device to correspond to the situation that the transmitting end has current difference, adds a current detection function to the transmitting end, and then controls the transmitting coil of the transmitting end according to different current states, thereby saving standby power consumption.
The operating states of the wireless charging device are generally classified into three types: first, the transmitting coil and the receiving coil are both in working state, and the receiving end is in charging state; the second is that the transmitting coil and the receiving coil are both in working state, but the receiving end only outputs, and the charging state is turned off; thirdly, the receiving coil is not close to the transmitting coil, that is, only the transmitting coil works, and no receiving coil does receiving work. Under the three modes, the currents consumed by the emitting end are different, the current values corresponding to the three modes are respectively represented by I1, I2 and I3, and the relation of I1, I2 and I3 exists according to the actual situation. According to the relation, the actual working state can be known by detecting the magnitude of the current. In the second state and the third state, the power consumption can be saved, the transmitting coil can be in an intermittent detection state in the two states, and the transmitting coil can be in a non-current transmitting state in most of time, so that the standby power consumption can be greatly reduced.
For example, as shown in fig. 2, time t1 is the time node when the transmitting coil is powered, time t2 is the time node when the receiving coil receives energy near the transmitting coil, time t3 is the time when charging of the battery is initiated, time t4 is the time when the battery is fully charged and charging is turned off, and time t4 is followed by the time when intermittent detection is added. After adding intermittent detection, the standby current is pulse current generated at some detection time in a timing mode, and after time averaging, the current is very low, and only the basic current I4 for maintaining the logic circuit to work is obtained. The current values in the drawings are merely schematic and do not accurately represent the magnitude of the current in actual operation.
The default mode of wireless charging can be an intermittent sleep mode or a charging mode. When the default mode of wireless charging is different, the specific control method is also different. The following describes a control method of low power consumption wireless charging in detail by taking a specific embodiment as an example.
In a first embodiment, if the default mode of wireless charging is an intermittent sleep mode, the method for controlling low-power wireless charging specifically includes the steps of:
step S100, after receiving a power input signal, a current acquisition unit 1 intermittently acquires the current value of a transmitting coil;
step S200, the judging unit 2 judges whether the current value is lower than a set threshold value, if the current value is lower than the set threshold value, the step S300 is executed, otherwise, the step S400 is executed;
step S300, the control unit 3 controls the transmitting coil to enter an intermittent sleep mode;
in step S400, the control unit 3 controls the transmitting coil to enter the charging mode.
In this control method, the workload of the current acquisition unit 1 and the judgment unit 2 is greatly reduced, and the service lives of the components constituting the current acquisition unit 1 and the judgment unit 2 are improved.
Note that the time node at which the current acquisition unit 1 intermittently acquires the current value is the same as the time node at which the transmission coil intermittently sleeps in mode. That is, if the time taken by the transmitter coil per intermittent sleep mode is t5, the current is transmitted at t6 before the time period of t5, and then (t5-t6) no current is transmitted, the time interval for the current acquisition unit 1 to acquire the current value is t5 and the transmitter coil current value is acquired in the time period corresponding to each t6 no matter the transmitter coil enters the intermittent sleep mode or the charging mode. The specific time of t5 and t6 can be specifically set according to requirements, for example, t5 can be 0.5s, 1s or 2s, and t6 can be 0.1s or 0.05 s.
After the transmitting coil enters the charging mode, if the current value acquired by the current acquiring unit 1 is higher than I2, the wireless charging device is in the first working state, and the charging mode is continuously maintained; if the current value obtained by the current obtaining unit 1 is lower than I2, it indicates that the receiving end is not in the charging state, and the control unit 3 controls the transmitting coil to enter the intermittent sleep mode from the charging mode.
After the transmitting coil enters the intermittent sleep mode, if the current value acquired by the current acquisition unit 1 is lower than I2, the wireless charging device is in a second or third working state, and the intermittent sleep mode is continuously maintained; if the current value obtained by the current obtaining unit 1 is higher than I2, it indicates that the receiving terminal is in a charging state, and the control unit 3 controls the transmitting coil to enter the charging mode from the intermittent sleep mode.
In order to improve the detection accuracy, the control unit 3 may control the transmitting coil to enter the intermittent sleep mode when the current value acquired by the current acquiring unit 1 is lower than the set threshold value at least twice continuously. And the current value obtained by the current obtaining unit 1 is once higher than the set threshold, the control unit 3 controls the transmitting coil to enter the charging mode, so that the transmitting coil quickly enters the charging mode.
In a second embodiment, if the default mode of wireless charging is a charging mode, the low-power consumption wireless charging control method specifically includes the steps of:
step S100, after receiving a power input signal, a current obtaining unit 1 obtains the current value of a transmitting coil in real time;
step S200, the judging unit 2 judges whether the current value is lower than a set threshold value, if the current value is lower than the set threshold value, the step S300 is executed, otherwise, the step S400 is executed;
step S300, if the current value is lower than the set threshold value, the control unit 3 controls the transmitting coil to enter an intermittent sleep mode;
in step S400, if the current value is higher than the set threshold, the control unit 3 controls the transmitting coil to enter the charging mode.
The control method realizes low-power-consumption wireless charging, and the current acquisition unit 1 acquires the current value of the transmitting coil in real time no matter the transmitting coil is in a charging mode or an intermittent sleep mode, so that the judgment accuracy is improved, and different control requirements of low-power-consumption wireless charging can be met.
In step S300, when the current value is continuously lower than the set threshold value within the set time, the transmitting coil is controlled to enter the intermittent sleep mode, so as to further improve the determination accuracy. The setting time in step S300 may be specifically set according to requirements, for example, 0.5S, 1S, or 2S.
In step S400, when the current value is continuously higher than the set threshold value within the set time, the transmitting coil is controlled to enter the charging mode, so as to further improve the determination accuracy. The setting time of step S400 may be different from the setting time of step S300. The setting time in step S400 may also be specifically set according to the requirement, for example, 0.3S, 0.5S, 1S, 1.2S, or 2S.
The control system for low-power wireless charging of the invention, as shown in fig. 3, includes a current obtaining unit 1, a judging unit 2 and a control unit 3. The current obtaining unit 1 obtains a current value of the transmitting coil after receiving the power input signal. The judgment unit 2 is used for judging whether the current value is lower than a set threshold value. The control unit 3 controls the transmitting coil to enter an intermittent sleep mode when the current value is lower than a set threshold value, and controls the transmitting coil to enter a charging mode when the current value is higher than the set threshold value, wherein the intermittent sleep mode is a mode for intermittently generating current, and the charging mode is a mode for continuously generating current.
The control system utilizes different states of the receiving end of the wireless charging device to correspond to the situation that the transmitting end has current difference, adds a current detection function to the transmitting end, and then controls the transmitting coil of the transmitting end according to different current states, so that standby power consumption is saved.
The operating states of the wireless charging device are generally classified into three types: first, the transmitting coil and the receiving coil are both in working state, and the receiving end is in charging state; the second is that the transmitting coil and the receiving coil are both in working state, but the receiving end only outputs, and the charging state is turned off; thirdly, the receiving coil is not close to the transmitting coil, that is, only the transmitting coil works, and no receiving coil does receiving work. Under the three modes, the currents consumed by the emitting end are different, the current values corresponding to the three modes are respectively represented by I1, I2 and I3, and the relation of I1, I2 and I3 exists according to the actual situation. According to the relation, the actual working state can be known by detecting the magnitude of the current. In the second state and the third state, the power consumption can be saved, the transmitting coil can be in an intermittent detection state in the two states, and the transmitting coil can be in a non-current transmitting state in most of time, so that the standby power consumption can be greatly reduced.
For example, as shown in fig. 2, time t1 is the time node when the transmitting coil is powered, time t2 is the time node when the receiving coil receives energy near the transmitting coil, time t3 is the time when charging of the battery is initiated, time t4 is the time when the battery is fully charged and charging is turned off, and time t4 is followed by the time when intermittent detection is added. After adding intermittent detection, the standby current is pulse current generated at some detection time in a timing mode, and after time averaging, the current is very low, and only the basic current I4 for maintaining the logic circuit to work is obtained. The current values in the drawings are merely schematic and do not accurately represent the magnitude of the current in actual operation.
The default mode of wireless charging can be an intermittent sleep mode or a charging mode. When the default mode of wireless charging is different, the specific control method of the control system is also different. The following takes specific embodiments as examples to describe the control method of the control system in detail.
In a first embodiment, if the default mode of the wireless charging is the intermittent sleep mode, the control method of the control system specifically includes the steps of:
step S100, after receiving a power input signal, a current acquisition unit 1 intermittently acquires the current value of a transmitting coil;
step S200, the judging unit 2 judges whether the current value is lower than a set threshold value, if the current value is lower than the set threshold value, the step S300 is executed, otherwise, the step S400 is executed;
step S300, the control unit 3 controls the transmitting coil to enter an intermittent sleep mode;
in step S400, the control unit 3 controls the transmitting coil to enter the charging mode.
In this control method, the workload of the current acquisition unit 1 and the judgment unit 2 is greatly reduced, and the service lives of the components constituting the current acquisition unit 1 and the judgment unit 2 are improved.
Note that the time node at which the current acquisition unit 1 intermittently acquires the current value is the same as the time node at which the transmission coil intermittently sleeps in mode. That is, if the time taken by the transmitter coil per intermittent sleep mode is t5, the current is transmitted at t6 before the time period of t5, and then (t5-t6) no current is transmitted, the time interval for the current acquisition unit 1 to acquire the current value is t5 and the transmitter coil current value is acquired in the time period corresponding to each t6 no matter the transmitter coil enters the intermittent sleep mode or the charging mode. The specific time of t5 and t6 can be specifically set according to requirements, for example, t5 can be 0.5s, 1s or 2s, and t6 can be 0.1s or 0.05 s.
After the transmitting coil enters the charging mode, if the current value acquired by the current acquiring unit 1 is higher than I2, the wireless charging device is in the first working state, and the charging mode is continuously maintained; if the current value obtained by the current obtaining unit 1 is lower than I2, it indicates that the receiving end is not in the charging state, and the control unit 3 controls the transmitting coil to enter the intermittent sleep mode from the charging mode.
After the transmitting coil enters the intermittent sleep mode, if the current value acquired by the current acquisition unit 1 is lower than I2, the wireless charging device is in a second or third working state, and the intermittent sleep mode is continuously maintained; if the current value obtained by the current obtaining unit 1 is higher than I2, it indicates that the receiving terminal is in a charging state, and the control unit 3 controls the transmitting coil to enter the charging mode from the intermittent sleep mode.
In order to improve the detection accuracy, the control unit 3 may control the transmitting coil to enter the intermittent sleep mode when the current value acquired by the current acquiring unit 1 is lower than the set threshold value at least twice continuously. And the current value obtained by the current obtaining unit 1 is once higher than the set threshold, the control unit 3 controls the transmitting coil to enter the charging mode, so that the transmitting coil quickly enters the charging mode.
In a second embodiment, if the default mode of the wireless charging is the charging mode, the control method of the control system specifically includes the steps of:
step S100, after receiving a power input signal, a current obtaining unit 1 obtains the current value of a transmitting coil in real time;
step S200, the judging unit 2 judges whether the current value is lower than a set threshold value, if the current value is lower than the set threshold value, the step S300 is executed, otherwise, the step S400 is executed;
step S300, if the current value is lower than the set threshold value, the control unit 3 controls the transmitting coil to enter an intermittent sleep mode;
in step S400, if the current value is higher than the set threshold, the control unit 3 controls the transmitting coil to enter the charging mode.
The control method realizes low-power-consumption wireless charging, and the current acquisition unit 1 acquires the current value of the transmitting coil in real time no matter the transmitting coil is in a charging mode or an intermittent sleep mode, so that the judgment accuracy is improved, and different control requirements of low-power-consumption wireless charging can be met.
In step S300, when the current value is continuously lower than the set threshold value within the set time, the control unit 3 controls the transmitting coil to enter the intermittent sleep mode, so as to further improve the determination accuracy. The setting time in step S300 may be specifically set according to requirements, for example, 0.5S, 1S, or 2S.
In step S400, when the current value is continuously higher than the set threshold value within the set time, the control unit 3 controls the transmitting coil to enter the charging mode, so as to further improve the determination accuracy. The setting time of step S400 may be different from the setting time of step S300. The setting time in step S400 may also be specifically set according to the requirement, for example, 0.3S, 0.5S, 1S, 1.2S, or 2S.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (14)
1. A control method for low-power wireless charging is characterized by comprising the following steps:
after receiving a power supply input signal, acquiring a current value of a transmitting coil;
judging whether the current value is lower than a set threshold value;
if the current value is lower than a set threshold value, controlling the transmitting coil to enter an intermittent sleep mode, wherein the intermittent sleep mode is a mode for intermittently generating current;
and if the current value is higher than the set threshold value, controlling the transmitting coil to enter a charging mode, wherein the charging mode is a mode of continuously generating current.
2. The method for controlling low-power wireless charging according to claim 1, wherein a default mode of wireless charging is an intermittent sleep mode, and a current value of the transmitting coil is obtained after receiving a power input signal, and the method specifically comprises the following steps:
and after receiving the power input signal, intermittently acquiring the current value of the transmitting coil.
3. The method for controlling low-power wireless charging according to claim 2, wherein if the current value is lower than a set threshold, the transmitting coil is controlled to enter an intermittent sleep mode, and the method specifically comprises the following steps:
and if the current value is lower than the set threshold value for at least two times, controlling the transmitting coil to enter an intermittent sleep mode.
4. The method for controlling low-power wireless charging according to claim 2, wherein if the current value is higher than the set threshold, the transmitting coil is controlled to enter the charging mode, specifically comprising the steps of:
and if the current value is higher than the set threshold value once, controlling the transmitting coil to enter a charging mode.
5. The method for controlling low-power wireless charging according to claim 1, wherein the default mode of wireless charging is a charging mode, and the current value of the transmitting coil is obtained after receiving the power input signal, specifically comprising the steps of:
and after receiving the power supply input signal, acquiring the current value of the transmitting coil in real time.
6. The method for controlling low-power wireless charging according to claim 5, wherein if the current value is lower than a set threshold, the transmitting coil is controlled to enter an intermittent sleep mode, specifically comprising the steps of:
and if the current value is continuously lower than the set threshold value within the set time, controlling the transmitting coil to enter an intermittent sleep mode.
7. The method for controlling low-power wireless charging according to claim 5, wherein if the current value is higher than the set threshold, the transmitting coil is controlled to enter the charging mode, specifically comprising the steps of:
and if the current value is continuously higher than the set threshold value within the set time, controlling the transmitting coil to enter a charging mode.
8. A control system for low-power wireless charging, comprising:
the current acquisition unit acquires the current value of the transmitting coil after receiving a power input signal;
the judging unit is used for judging whether the current value is lower than a set threshold value or not;
the control unit controls the transmitting coil to enter an intermittent sleep mode when the current value is lower than a set threshold value, and controls the transmitting coil to enter a charging mode when the current value is higher than the set threshold value, wherein the intermittent sleep mode is a mode for intermittently generating current, and the charging mode is a mode for continuously generating current.
9. The control system of claim 8, wherein the default mode of wireless charging is an intermittent sleep mode, and the current obtaining unit is specifically configured to:
and after receiving the power input signal, intermittently acquiring the current value of the transmitting coil.
10. The control system for low-power wireless charging according to claim 9, wherein the control unit is specifically configured to:
and if the current value is lower than the set threshold value for at least two times, controlling the transmitting coil to enter an intermittent sleep mode.
11. The control system for low-power wireless charging according to claim 9, wherein the control unit is specifically configured to:
and if the current value is higher than the set threshold value once, controlling the transmitting coil to enter a charging mode.
12. The control system of claim 8, wherein the default mode of wireless charging is a charging mode, and the current obtaining unit is specifically configured to:
and after receiving the power supply input signal, acquiring the current value of the transmitting coil in real time.
13. The control system for low-power wireless charging according to claim 12, wherein the control unit has a function of:
and if the current value is continuously lower than the set threshold value within the set time, controlling the transmitting coil to enter an intermittent sleep mode.
14. The control system for low-power wireless charging according to claim 12, wherein the control unit is specifically configured to:
and if the current value is continuously higher than the set threshold value within the set time, controlling the transmitting coil to enter a charging mode.
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| WO2024032788A1 (en) * | 2022-08-12 | 2024-02-15 | 长春捷翼汽车科技股份有限公司 | Wireless charging apparatus, detection signal transmission method, and vehicle |
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