Vehicle-mounted wireless charging and power supply system, control method and program product

Abstract

The invention provides a vehicle-mounted wireless charging power supply system, a control method and a program product, a wireless charging chip in the system is provided with an ultra-low power consumption module, the wireless charging chip enters a low power consumption mode under the condition of power failure of an input voltage, a super capacitor supplies power to the wireless charging chip and an off-chip voltage stabilization module, and the wireless charging chip and the off-chip voltage stabilization module are connected with the ultra-low power consumption module. And the off-chip voltage stabilizing module supplies power to the motor driving module, the touch module and other functional modules, so that the use requirement of the vehicle-mounted wireless charging power failure condition is met, a processor does not need to be additionally arranged, and the system cost and the circuit complexity are reduced.

Description

Technical Field

[0001] This application relates to the field of wireless charging technology, and more specifically, to an in-vehicle wireless charging power supply system, control method, and program product. Background Technology

[0002] Wireless charging technology eliminates the need for charging cables, avoids wear and tear from frequent plugging and unplugging, and offers the convenience of simply placing the phone on the charger. Therefore, it has received considerable attention and rapid adoption in recent years. Wireless charging is primarily used in offices or home desks, public places, and inside cars. Most new energy vehicles currently have pre-installed wireless charging, while older models or new energy vehicles can also achieve in-car wireless charging by adding a wireless charging dock. However, in-car wireless charging docks need to solve a problem: when the user gets out of the car and shuts down the car's low-voltage power supply, the wireless charging dock loses power, but the phone remains held in place by the robotic arm of the in-car wireless charging dock and cannot be removed.

[0003] Existing automotive wireless charging power supply systems typically add a low-power processor MCU to the wireless charging SoC, along with a supercapacitor, to allow the mechanical gripper to continue operating normally for a period of time when the input power fails. While using an additional low-power processor solves the automotive input power failure problem, most of the processor's performance is wasted, while also increasing system cost and circuit complexity. Summary of the Invention

[0004] The purpose of this application is to provide an in-vehicle wireless charging power supply system, control method, and program product to solve the problem that existing in-vehicle wireless charging power supply system solutions add low-power processors, thereby increasing system cost and circuit complexity.

[0005] This application provides an in-vehicle wireless charging power supply system, including: a Buck module, a wireless charging chip, a supercapacitor, and an off-chip voltage regulator module;

[0006] The wireless charging chip is used to control the BuckBoost module to convert the input voltage and output it to the inverter bridge when the input voltage is normally supplied, and to control the inverter bridge to generate AC power to the LC resonant cavity.

[0007] When the input voltage is normal, the Buck module takes the DCIN input voltage and outputs the voltage to power the wireless charging chip and the off-chip voltage regulator module, and charges the supercapacitor.

[0008] In the event of a power outage at the input voltage, the wireless charging chip and the off-chip voltage regulator module are powered by a supercapacitor.

[0009] The wireless charging chip includes an ultra-low power module and an input power failure detection module. When the input power failure detection module detects a power failure in the input voltage, or when the input voltage port triggers the ultra-low power module, the wireless charging chip enters a low-power mode.

[0010] In the above technical solution, the wireless charging chip has an ultra-low power module. When the input voltage drops, the wireless charging chip enters a low power mode, and the supercapacitor supplies power to the wireless charging chip and the external voltage regulator module. The external voltage regulator module supplies power to the motor drive, touch and other functional modules, thereby meeting the usage requirements of vehicle wireless charging in the event of power failure. There is no need to add an additional processor, which reduces system cost and circuit complexity.

[0011] In some optional implementations, a first functional module is also included, wherein the signal terminal of the first functional module is connected to the wireless charging chip, and the power supply terminal of the first functional module is connected to an external voltage regulator module.

[0012] In the above technical solution, the off-chip voltage regulator module supplies power to the first functional module, the first functional module is connected to the wireless charging chip via a signal connection, the first functional module receives control signals from the wireless charging chip, or the first functional module sends trigger signals to the wireless charging chip.

[0013] In some alternative implementations, the first functional module includes a motor driver chip and a touch chip;

[0014] The motor drive chip is used to control the rotation of the motor, which in turn controls the movement of each joint of the robotic arm, enabling the robotic arm to grip or release.

[0015] The touch chip is used to sense user touch actions and send a wake-up signal to the wireless charging chip when the wireless charging chip is in low-power mode.

[0016] In the above technical solution, the first functional module includes a motor drive chip and a touch chip. When the input voltage is lost, a supercapacitor supplies power to an external voltage regulator module, which in turn powers the motor drive chip and the touch chip. Therefore, even when the car's low-voltage power supply system is turned off after the user gets out of the car, the robotic arm can still be controlled to hold and release the phone. After the user gets out of the car, the wireless charging chip is in low-power mode. If the touch chip senses the user's touch action at this time, it sends a wake-up signal to the wireless charging chip, causing the wireless charging chip to exit low-power mode.

[0017] In some alternative implementations, the wireless charging chip also includes a digital module;

[0018] When the wireless charging chip in low power mode receives a wake-up signal, it enters working mode, enables the Buck module, and the output of the Buck module powers the digital module.

[0019] The digital module connects the touch chip and the motor driver chip;

[0020] After the digital module outputs a signal to control the motor drive chip and completes one release and gripping cycle of the robotic arm, the wireless charging chip continues to enter low-power mode.

[0021] In the above technical solution, the wireless charging chip in low power mode receives a wake-up signal, exits low power mode, and enters working mode. The wireless charging chip enables the Buck module, so that the output of the Buck module supplies power to the digital module of the wireless charging chip. The digital module is connected to the touch chip and the motor drive chip.

[0022] The process of releasing and gripping the robotic arm can be as follows: the user sends a command to the digital module to remove the mobile phone through the touch chip. Based on the command, the wireless charging chip uses the digital module to send a control command to the motor drive chip. For example, the motor is first controlled to reverse to release the robotic arm, and then the motor is controlled to rotate forward to grip the robotic arm.

[0023] After completing a release and gripping operation by the robotic arm, the wireless charging chip can automatically enter a low-power mode.

[0024] In some alternative implementations, the wireless charging chip also includes an on-chip voltage regulator module; the on-chip voltage regulator module is used to power the photosensitive chip.

[0025] When the wireless charging chip in low power mode receives a wake-up signal, it enters the working mode, enables the Buck module, and the output of the Buck module supplies power to the on-chip voltage regulator module.

[0026] In the above technical solution, when the input voltage drops and the wireless charging chip is woken up and enters working mode, the on-chip voltage regulator module of the wireless charging chip supplies power to the photosensitive chip. At this time, if the motor drive chip controls the robotic arm to release and the user takes the phone held by the robotic arm, the photosensitive chip senses the change in light and sends a trigger signal to the wireless charging chip. The wireless charging chip then sends a control signal to the motor drive chip based on the trigger signal to control the robotic arm to retract (grip). In this embodiment, even when the input voltage drops, the robotic arm can still automatically retract after the user takes the phone, improving the user experience.

[0027] This application provides a control method for an on-board wireless charging power supply system, including:

[0028] When the input voltage is normal, the Buck module takes the DCIN input voltage and outputs the voltage to power the wireless charging chip and the off-chip voltage regulator module, and charges the supercapacitor.

[0029] When the input power failure detection module detects an input voltage failure, or when the input voltage port triggers the ultra-low power module, it shuts down the inverter bridge, shuts down the Buck module and the BuckBoost module, and configures the wireless charging chip to enter low power mode; the wireless charging chip and the off-chip voltage regulator module are powered by a supercapacitor.

[0030] In the above technical solution, the supercapacitor is charged when the input voltage is normal; when the input voltage drops, the wireless charging chip enters a low-power mode, and the supercapacitor supplies power to the wireless charging chip and the external voltage regulator module. The external voltage regulator module supplies power to the motor drive, touch and other functional modules, thereby meeting the usage requirements of vehicle wireless charging in the event of power failure. No additional processor is required, which reduces system cost and circuit complexity.

[0031] In some optional implementations, a touch wake-up control method is also included, which includes:

[0032] When the wireless charging signal is in low power mode, the touch chip senses the user's touch action and sends a wake-up signal to the wireless charging chip.

[0033] When the wireless charging chip in low power mode receives a wake-up signal, it enters working mode; in working mode, the wireless charging chip enables the Buck module, and the output of the Buck module supplies power to the wireless charging chip.

[0034] Determine whether a fast charging protocol is detected or the input voltage is greater than the set value;

[0035] If no fast charging protocol is detected or the input voltage is greater than the set value, the wireless charging chip will continue to enter the low power mode after the wireless charging chip outputs a signal to control the motor drive chip and completes one release and clamping of the robotic arm.

[0036] In some optional implementations, after determining whether a fast charging protocol is detected or the input voltage is greater than a set value, the method further includes:

[0037] If a fast charging protocol is detected or the input voltage is greater than the set value, the control method of powering on the input voltage will be executed.

[0038] In some alternative implementations, the control method for powering on the input voltage includes:

[0039] Determine if the following conditions are met: CC port voltage is greater than the threshold, a wake-up signal is received, and short circuit detection is performed via DP / DM.

[0040] If the conditions are met, then enter working mode;

[0041] Determine whether a fast charging protocol is detected or the input voltage is greater than the set value;

[0042] If a fast charging protocol is detected or the input voltage is greater than the set value, the charging process begins; if no fast charging protocol is detected or the input voltage is less than or equal to the set value, the touch wake-up control method is executed.

[0043] This application provides a computer program product, including a computer program / instruction, which, when executed by a processor, implements the steps of any of the methods described above. Attached Figure Description

[0044] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a schematic diagram of the basic architecture of the in-vehicle wireless charging system provided in the embodiments of this application;

[0046] Figure 2 A circuit diagram of an in-vehicle wireless charging power supply system provided in an embodiment of this application;

[0047] Figure 3 This is a diagram of the wireless charging chip architecture provided in an embodiment of this application;

[0048] Figure 4 This is a flowchart of the input voltage power-down control provided in an embodiment of this application;

[0049] Figure 5 This is a flowchart illustrating the touch wake-up control process provided in an embodiment of this application.

[0050] Figure 6 The control flowchart for powering on the input voltage provided in the embodiments of this application is shown. Detailed Implementation

[0051] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0052] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the basic architecture of the in-vehicle wireless charging system provided in the embodiments of this application. The in-vehicle wireless charging system includes a BuckBoost module, a wireless charging chip, an inverter bridge, and an LC resonant cavity. Under normal power supply conditions, the BuckBoost module converts the input voltage and outputs it to the inverter bridge. The wireless charging chip controls the inverter bridge to generate AC power to the LC resonant cavity.

[0053] DCIN is the power input port, which can be connected to a vehicle low-voltage 12V / 24V power supply or a vehicle adapter. The wireless charging chip controls BuckBoost to convert the input voltage and send it to the inverter bridge. The wireless charging chip emits a PWM wave to control the inverter bridge to generate AC power, which is then supplied to the LC resonant cavity, and an electromagnetic field is sent to the receiver.

[0054] Please refer to Figure 2 , Figure 2 This application provides a circuit diagram of an in-vehicle wireless charging power supply system, which includes a wireless charging chip, a Buck module, a supercapacitor, and an off-chip voltage regulator module. In the event of an input voltage failure, the supercapacitor supplies power to the wireless charging chip and the off-chip voltage regulator module. The wireless charging chip includes an ultra-low power module and an input power failure detection module. When the input power failure detection module detects an input voltage failure, or when the input voltage port triggers the ultra-low power module, the wireless charging chip enters a low-power mode.

[0055] In this embodiment, the wireless charging chip has an ultra-low power module. When the input voltage drops, the wireless charging chip enters a low-power mode, and the supercapacitor supplies power to the wireless charging chip and the off-chip voltage regulator module. The off-chip voltage regulator module supplies power to the motor drive, touch and other functional modules, thereby meeting the usage requirements of vehicle wireless charging in the event of power failure. No additional processor is required, which reduces system cost and circuit complexity.

[0056] It should be clarified that although the Buck module in this embodiment is an external module of the wireless charging chip, the Buck module can also be replaced by a Buck or HVLDO integrated inside the wireless charging chip to further reduce system power consumption.

[0057] Please refer to Figure 3 , Figure 3 This is a diagram illustrating the architecture of a wireless charging chip provided in an embodiment of this application. The wireless charging chip features an Ultra-Low Power Microcontroller Unit (ULPMU), a microcontroller unit designed specifically for low-power applications. Essentially, it is the smallest analog circuitry within the chip that maintains its wake-up state. The ULPMU achieves extremely low power consumption through specialized design and optimization techniques, such as reducing current consumption, optimizing processor architecture and algorithms, and lowering operating frequency. It can operate for extended periods without frequent battery replacements or charging, making it suitable for applications requiring long-term operation in environments with limited or no external power supply.

[0058] The ultra-low power module in this embodiment includes rising edge, falling edge, high level, and low level wake-up for I / O. To reduce the power consumption of the wireless charging chip, the chip uses a low-speed clock during the ultra-low power sleep phase, shutting down other analog and digital circuits required for normal chip operation. The analog circuits required for normal chip operation include the ADC and high-speed clock.

[0059] In some optional implementations, a first functional module is also included. The signal terminal of the first functional module is connected to the wireless charging chip, and the power supply terminal of the first functional module is connected to an external voltage regulator module. In this embodiment, the external voltage regulator module supplies power to the first functional module, the first functional module is signal-connected to the wireless charging chip, and the first functional module receives control signals from the wireless charging chip or sends trigger signals to the wireless charging chip.

[0060] In some optional implementations, the first functional module includes a motor drive chip and a touch chip; the motor drive chip is used to control the rotation of the motor, thereby controlling the movement of each joint of the robotic arm to realize the gripping or releasing of the robotic arm; the touch chip is used to sense the user's touch action and send a wake-up signal to the wireless charging chip when the wireless charging chip is in a low power mode.

[0061] In this embodiment, the first functional module includes a motor driver chip and a touch chip. When the input voltage is lost, a supercapacitor supplies power to an external voltage regulator module, which in turn powers the motor driver chip and the touch chip. Therefore, even when the car's low-voltage power supply system is turned off after the user gets out of the car, the gripping and releasing of the mobile phone can still be achieved by controlling the robotic arm. After the user gets out of the car, the wireless charging chip is in a low-power mode. If the touch chip senses a user touch action at this time, it sends a wake-up signal to the wireless charging chip, causing the wireless charging chip to exit the low-power mode.

[0062] In some optional implementations, the wireless charging chip also includes a digital module; when the wireless charging chip in low power mode receives a wake-up signal, it enters the working mode, enables the Buck module, and the output of the Buck module supplies power to the digital module; the digital module connects to the touch chip and the motor driver chip; after the digital module outputs a signal to control the motor driver chip and completes one release and gripping of the robotic arm, the wireless charging chip continues to enter the low power mode.

[0063] In this embodiment, the wireless charging chip in low-power mode receives a wake-up signal, exits low-power mode, and enters working mode. The wireless charging chip enables the Buck module, so that the output of the Buck module supplies power to the digital module of the wireless charging chip. The digital module is connected to the touch chip and the motor drive chip.

[0064] The process of releasing and gripping the robotic arm can be as follows:

[0065] The user sends a command to the digital module via the touch chip to retrieve the phone. Based on this command, the wireless charging chip uses the digital module to send control commands to the motor drive chip. For example, it first controls the motor to reverse to release the robotic arm, and then controls the motor to rotate forward to hold the phone. After completing one release and hold cycle, the wireless charging chip automatically enters a low-power mode.

[0066] In some optional implementations, the wireless charging chip also includes an on-chip voltage regulator module; the on-chip voltage regulator module is used to power the photosensitive chip; when the wireless charging chip in low power mode receives a wake-up signal, it enters the working mode, enables the Buck module, and the output of the Buck module powers the on-chip voltage regulator module.

[0067] In this embodiment, when the input voltage drops and the wireless charging chip is activated and enters its working mode, the on-chip voltage regulator module of the wireless charging chip powers the photosensor chip. At this time, if the motor drive chip controls the robotic arm to release, and the user removes the phone held by the robotic arm, the photosensor chip detects the change in light and sends a trigger signal to the wireless charging chip. The wireless charging chip then sends a control signal to the motor drive chip based on this trigger signal to control the robotic arm to retract (grip). This embodiment's solution ensures that even when the input voltage drops, the robotic arm can still automatically retract after the user removes the phone, improving the user experience.

[0068] This application provides a control method for an on-board wireless charging power supply system, including:

[0069] Step S1: Under normal power supply conditions, the Buck module inputs voltage from DCIN and outputs voltage to power the wireless charging chip and the external voltage regulator module, and charges the supercapacitor.

[0070] Step S2: When the input power failure detection module detects an input voltage failure, or when the input voltage port triggers the ultra-low power module, the inverter bridge is shut down, the Buck module and BuckBoost module are shut down, and the wireless charging chip is configured to enter low power mode; the wireless charging chip and the external voltage regulator module are powered by the supercapacitor.

[0071] In this embodiment, the supercapacitor is charged when the input voltage is normal; when the input voltage drops, the wireless charging chip enters a low-power mode, and the supercapacitor supplies power to the wireless charging chip and the external voltage regulator module. The external voltage regulator module supplies power to the motor drive, touch and other functional modules, thereby meeting the usage requirements of vehicle wireless charging in the event of power failure. No additional processor is required, which reduces system cost and circuit complexity.

[0072] Specifically, this control method is applied to Figure 2 The in-vehicle wireless charging power supply system shown has DCIN directly supplying power to the VIN terminal of the wireless charging chip, activating part of the chip's modules and pulling the IO0 terminal high, enabling the Buck module. Furthermore, DCIN directly supplies power to the input terminal of the Buck module. The Buck module generates approximately 5V, which is supplied to the AVDD terminal of the wireless charging chip via Schottky diode D2. This approximately 5V power also supplies power to the motor driver chip and the external LDO 3V3 voltage regulator module via diode D3. Additionally, the approximately 5V power generated by the Buck module charges the supercapacitor via diode D3 and charging resistor R1. The external voltage regulator module generates 3.3V to power the touch chip. Therefore, under normal input voltage conditions, the entire system's power supply comes from the input voltage DCIN.

[0073] Please refer to Figure 4 , Figure 4 The flowchart of the input voltage power-down control provided in this application embodiment shows that when the input voltage drops, the VIN terminal of the wireless charging chip triggers the low power mode LVP, or the input power-down detection module identifies the input voltage drop (for example, by identifying the input voltage drop through the DAC comparator). The wireless charging chip shuts down the PWM inverter bridge, the Buck module is shut down by software control, and the system is configured to enter ultra-low power sleep.

[0074] For example Figure 2 As shown, when DCIN is powered down, the wireless charging chip detects the input voltage loss, pulls IO0 low, shuts down the Buck module output, and enters ultra-low power sleep mode. At this time, the supercapacitor continues to supply power to the VIN terminal of the wireless charging chip through Schottky diode D1, and simultaneously supplies power to the motor driver chip and the external voltage regulator module LDO3V3 through PMOS transistor Q1. Due to the reverse cutoff effect of Schottky diode D3, there is also no power at the AVDD terminal of the wireless charging chip. The external voltage regulator module LDO3V3 generates a 3.3V power supply to power the touch chip, maintaining the touch sensing function.

[0075] In some optional implementations, a touch wake-up control method is also included, which includes:

[0076] Step S3: When the wireless charging signal is in low power mode, the touch chip senses the user's touch action and sends a wake-up signal to the wireless charging chip.

[0077] Step S4: The wireless charging chip in low power mode receives a wake-up signal and enters working mode; wherein, the wireless charging chip in working mode enables the Buck module, and the output of the Buck module supplies power to the wireless charging chip.

[0078] Step S5: Determine whether a fast charging protocol is detected or the input voltage is greater than the set value;

[0079] Step S51: If no fast charging protocol is detected or the input voltage is greater than the set value, the wireless charging chip will continue to enter the low power mode after the wireless charging chip outputs a signal to control the motor drive chip and completes one release and clamping of the robotic arm.

[0080] In some optional implementations, after determining whether a fast charging protocol is detected or the input voltage is greater than a set value, the method further includes:

[0081] Step S52: If a fast charging protocol is detected or the input voltage is greater than the set value, then execute the input voltage power-on control method.

[0082] Specifically, this touch-to-wake control method is applied to Figure 2 When referring to the in-vehicle wireless charging power supply system shown, please refer to... Figure 5 , Figure 5 This is a flowchart illustrating the touch wake-up control process provided in an embodiment of this application. (In conjunction with...) Figure 2 The in-vehicle wireless charging power supply system shown, when DCIN is powered off, if a user touch is detected, the touch chip will pull high the IO3 port of the wireless charging chip to generate an input wake-up function, which is used to wake up the ultra-low power module ULPMU, and pull high the IO0 port to enable the Buck module. Then, power is supplied to the AVDD terminal of the wireless charging chip, activating the digital module of the wireless charging chip. Then, the IO1 / IO2 ports of the wireless charging chip drive the motor driver chip, opening the wireless charging base clamping arm. After completing one opening and closing of the base clamping arm, the system controls the wireless charging chip to continue entering ultra-low power sleep mode until the touch chip senses a user touch again, or the supercapacitor runs out of power and the system stops working.

[0083] In some alternative implementations, please refer to Figure 6 , Figure 6 A flowchart illustrating the input voltage power-on control method provided in this application embodiment. The input voltage power-on control method includes:

[0084] Step S6: Determine if the conditions are met: CC port voltage is greater than the threshold, wake-up signal is received, and DP / DM short circuit detection is performed.

[0085] Step S7: If the conditions are met, enter the working mode;

[0086] Step S8: Determine whether a fast charging protocol is detected or the input voltage is greater than the set value;

[0087] Step S91: If a fast charging protocol is detected or the input voltage is greater than the set value, the charging process begins; Step S92: If a fast charging protocol is not detected or the input voltage is less than or equal to the set value, the touch wake-up control method is executed.

[0088] This application provides a computer program product, including a computer program / instruction, which, when executed by a processor, implements the steps of any of the methods described above.

[0089] In the embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the displayed or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0090] Furthermore, the units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0091] Furthermore, the functional modules in the various embodiments of this application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0092] In this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations.

[0093] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A wireless charging power supply system for a vehicle, characterized by comprising: Comprise: Buck module, wireless charging chip, super capacitor and off-chip voltage stabilizing module; The wireless charging chip is configured to control the Buck-Boost module to convert the input voltage and output the converted voltage to the inverter bridge, and control the inverter bridge to generate alternating current to the LC resonant cavity when the input voltage is normally powered; In the case of normal input voltage, the Buck module receives DCIN input voltage and outputs voltage to the wireless charging chip and off-chip voltage stabilizing module for power supply, and charges the super capacitor; In the case of input voltage power failure, the super capacitor supplies power to the wireless charging chip and off-chip voltage stabilizing module. The wireless charging chip comprises an ultra-low power consumption module and an input power failure detection module; when the input power failure detection module detects input voltage power failure or the input voltage port triggers the ultra-low power consumption module, the wireless charging chip enters low-power consumption mode.

2. The system of claim 1, wherein, Further comprising a first functional module, the signal end of the first functional module is connected to the wireless charging chip, and the power supply end of the first functional module is connected to the off-chip voltage stabilizing module.

3. The system of claim 2, wherein, The first functional module comprises a motor drive chip and a touch chip; The motor drive chip is configured to control the rotation of the motor, thereby controlling the movement of each joint of the mechanical arm to achieve mechanical arm clamping or releasing; The touch chip is configured to sense user touch action and send a wake-up signal to the wireless charging chip when the wireless charging chip is in low-power consumption mode.

4. The system of claim 3, wherein, The wireless charging chip further comprises a digital module; The wireless charging chip in low-power consumption mode receives a wake-up signal, enters working mode, enables the Buck module, and the output end of the Buck module supplies power to the digital module; The digital module is connected to the touch chip and the motor drive chip; After the digital module outputs a signal to control the motor drive chip and complete one mechanical arm releasing and clamping, the wireless charging chip continues to enter low-power consumption mode.

5. The system of claim 1, wherein, The wireless charging chip further comprises an on-chip voltage stabilizing module; the on-chip voltage stabilizing module is configured to supply power to the light sensing chip; The wireless charging chip in low-power consumption mode receives a wake-up signal, enters working mode, enables the Buck module, and the output end of the Buck module supplies power to the on-chip voltage stabilizing module.

6. A control method of a wireless charging power supply system mounted on a vehicle, characterized by, Comprise: In the case of normal input voltage, the Buck module receives DCIN input voltage and outputs voltage to the wireless charging chip and off-chip voltage stabilizing module for power supply, and charges the super capacitor; In the case of input voltage power failure or input voltage port triggering the ultra-low power consumption module, the input power failure detection module closes the inverter bridge, closes the Buck module and Buck-Boost module, and configures the wireless charging chip to enter low-power consumption mode; the super capacitor supplies power to the wireless charging chip and off-chip voltage stabilizing module.

7. The method of claim 6, wherein, Further comprising a touch wake-up control method, the touch wake-up control method comprising: In the case of the wireless charging signal being in low-power consumption mode, the touch chip senses user touch action and sends a wake-up signal to the wireless charging chip; The wireless charging chip in the low-power mode receives a wake-up signal and enters a working mode; wherein the wireless charging chip in the working mode enables a Buck module, and the output end of the Buck module supplies power for the wireless charging chip; determining whether a fast charging protocol is detected or whether an input voltage is greater than a set value; if the fast charging protocol is not detected or the input voltage is greater than the set value, after the wireless charging chip controls the motor driving chip and completes the release and clamping of the mechanical arm once, the wireless charging chip continues to enter the low-power mode.

8. The method of claim 7, wherein, After the determining whether the fast charging protocol is detected or whether the input voltage is greater than the set value, the method further comprises: if the fast charging protocol is detected or the input voltage is greater than the set value, performing a control method of input voltage power-on.

9. The method of claim 8, wherein, The control method of input voltage power-on comprises: determining whether a condition is met, that is, whether a CC port voltage is greater than a threshold value, whether a wake-up signal is received, and whether a DP / DM short circuit detection is passed; if the condition is met, entering the working mode; determining whether a fast charging protocol is detected or whether an input voltage is greater than a set value; if the fast charging protocol is detected or the input voltage is greater than the set value, entering a charging flow; if the fast charging protocol is not detected or the input voltage is less than or equal to the set value, performing a control method of touch wake-up.

10. A computer program product comprising computer programs / instructions, characterized in that, The computer program / instruction is executed by the processor to implement the steps of the method of any one of claims 6-9.

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