Vehicle active air inlet grille vibration dust removal device, method and equipment and storage medium

Abstract

The invention relates to the technical field of vehicle dust removal, and discloses a vehicle active air inlet grille vibration dust removal device, method and equipment and a storage medium. The flow guide cover is connected with the electronic fan and the driving air inlet grille, and piezoelectric ceramic pieces are arranged on blades of the driving air inlet grille. The controller is used for obtaining the first current vibration frequency of the electronic fan when the electronic fan works; based on the first current vibration frequency, the driving frequency of a piezoelectric ceramic piece is dynamically adjusted through a PID algorithm, so that the vibration frequency of the active air inlet grille and the vibration frequency of the electronic fan are controlled to be kept synchronous; and when the vibration frequencies of the active air inlet grille and the electronic fan are kept synchronous, controlling the electronic fan to be switched to a reverse blowing mode so as to perform vibration dust removal on the active air inlet grille. According to the technical scheme, the dust removal efficiency of the active air inlet grille of the vehicle can be improved, the cleaning effect is optimized, and the heat dissipation performance and operation stability of the vehicle are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle dust removal, in particular to a vehicle active air intake grille vibration dust removal device, method, equipment and storage medium. BACKGROUND

[0002] At present, vehicle dust removal technology is mostly concentrated on in-vehicle dust removal, and there is less research on active air intake grille dust removal. The mechanical rigid connection dust removal mechanism has low on-vehicle feasibility, and the current cleaning method of the vehicle active air intake grille is mostly manual wiping or cleaning, and the dust removal efficiency is low. SUMMARY

[0003] In view of the above problems, the present application provides a vehicle active air intake grille vibration dust removal device, method, equipment and storage medium, which is used to solve the problem of low dust removal efficiency of the vehicle active air intake grille in the prior art.

[0004] According to an aspect of an embodiment of the present application, a vehicle active air intake grille vibration dust removal device is provided, and the device comprises: an electronic fan, a fairing and a controller; the fairing is connected with the electronic fan and the active air intake grille; a piezoelectric ceramic sheet is arranged on a blade of the active air intake grille; and the controller is used for: acquiring a first current vibration frequency of the electronic fan when the electronic fan is working; based on the first current vibration frequency, dynamically adjusting a driving frequency of the piezoelectric ceramic sheet through a PID algorithm to control the vibration frequencies of the active air intake grille and the electronic fan to be kept synchronous; when the vibration frequencies of the active air intake grille and the electronic fan are kept synchronous, controlling the electronic fan to switch to a reverse blowing mode to perform vibration dust removal on the active air intake grille.

[0005] In an optional manner, an accelerometer is fixedly arranged on the piezoelectric ceramic sheet; and the controller is specifically used for: collecting a second current vibration frequency of the active air intake grille by using the accelerometer; based on a vibration frequency difference value between the first current vibration frequency and the second current vibration frequency, dynamically adjusting the driving frequency of the piezoelectric ceramic sheet through the PID algorithm to control the second current vibration frequency of the active air intake grille and the first current vibration frequency of the electronic fan to be kept synchronous.

[0006] In an optional manner, an absolute value of a vibration frequency error value between the synchronous second current vibration frequency of the active air intake grille and the synchronous first current vibration frequency of the electronic fan is less than a preset vibration frequency value.

[0007] In an optional mode, a dust sensor is arranged at the center of the blade of the active air intake grille; the dust sensor is used to detect the dust concentration on the surface of the blade of the active air intake grille; the controller is further used to: read the current dust concentration value of the dust sensor, and determine whether the current dust concentration value is greater than a preset concentration value, to obtain a determination result; when the determination result is yes, control the active air intake grille to adjust to a fully open state and control the electronic fan to work.

[0008] In an optional mode, the dust sensor comprises an infrared laser diode and a silicon photodiode. The infrared laser diode vertically irradiates the surface of the blade of the active air intake grille in the form of pulses; the silicon photodiode converts a current scattering light signal formed according to the current incident light of the infrared laser diode into a current electric signal, and converts the current electric signal into a current voltage signal through a cross-group amplifier, so as to determine the current dust concentration value according to the current voltage signal; wherein, the current incident light forms the current scattering light signal based on the dust particles on the surface of the blade of the active air intake grille.

[0009] In an optional mode, the fairing is made of carbon fiber material, and the fairing is connected with the active air intake grille through an elastic silica gel gasket.

[0010] In an optional mode, the controller is specifically used to: control the electronic fan to switch to the reverse blowing mode through the H-bridge circuit of the electronic fan.

[0011] According to another aspect of the embodiment of the present application, a vehicle active air intake grille vibration dust removal method is provided, the method comprising: when the electronic fan works, acquiring a first current vibration frequency of the electronic fan; wherein the electronic fan is connected with the active air intake grille through a fairing, and a piezoelectric ceramic sheet is arranged on the blade of the active air intake grille; based on the first current vibration frequency, dynamically adjusting the driving frequency of the piezoelectric ceramic sheet through a PID algorithm, so as to control the vibration frequencies of the active air intake grille and the electronic fan to be kept synchronous; when the vibration frequencies of the active air intake grille and the electronic fan are kept synchronous, controlling the electronic fan to switch to a reverse blowing mode, so as to perform vibration dust removal on the active air intake grille.

[0012] According to another aspect of the embodiment of the present application, a vehicle active air intake grille vibration dust removal device is provided, comprising: a controller; A memory is configured to store one or more programs, which, when executed by the controller, cause the controller to implement the vehicle active grille shutter vibration dust removal method.

[0013] According to another aspect of the embodiments of the present application, a computer readable storage medium is provided, and the storage medium stores at least one executable instruction, which, when executed on a vehicle active grille shutter vibration dust removal device, causes the vehicle active grille shutter vibration dust removal device to perform the operations of the vehicle active grille shutter vibration dust removal method.

[0014] The fairing connects the electronic fan and the active grille shutter, and a piezoelectric ceramic sheet is arranged on the blade of the active grille shutter. The controller is configured to: acquire a first current vibration frequency of the electronic fan when the electronic fan is working; dynamically adjust a driving frequency of the piezoelectric ceramic sheet based on the first current vibration frequency by a PID algorithm, so as to control the vibration frequencies of the active grille shutter and the electronic fan to be kept synchronous; and control the electronic fan to switch to a reverse blowing mode when the vibration frequencies of the active grille shutter and the electronic fan are kept synchronous, so as to vibrate and remove dust from the active grille shutter. The dust removal efficiency of the vehicle active grille shutter can be improved, the cleaning effect is optimized, the dependence on manual cleaning is reduced, and the heat dissipation performance and the operation stability of the vehicle are improved.

[0015] The above description is only a summary of the technical solutions of the embodiments of the present application. In order to more clearly understand the technical means of the embodiments of the present application, the embodiments of the present application can be implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the embodiments of the present application more obvious and easy to understand, the specific embodiments of the present application are described below. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings incorporated into the specification and forming part of the specification, show embodiments consistent with the present application, and together with the specification, serve to explain the principles of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 The structure schematic diagram of the embodiment of the active grille shutter vibration dust removal device provided by the present application is shown.

[0018] Figure 2 The specific structure schematic diagram of the active grille shutter vibration dust removal device is shown.

[0019] Figure 3 The control principle schematic diagram of the active grille shutter vibration dust removal device is shown.

[0020] Figure 4 A working principle schematic diagram of the active air intake grille vibration dust removal device is shown.

[0021] Figure 5 A flowchart of an embodiment of the active air intake grille vibration dust removal method provided by the present application is shown.

[0022] Figure 6 A structural schematic diagram of an embodiment of the active air intake grille vibration dust removal device provided by the present application is shown.

[0023] Legend: 11, electronic fan, 12, fairing, 13, controller, 14, active air intake grille. DETAILED DESCRIPTION

[0024] The exemplary embodiments will be described in detail herein below with examples shown in the drawings. In the following description, the same numbers in different drawings represent the same or similar elements unless otherwise represented. The embodiments described in the following exemplary embodiments do not represent all the embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0025] The block diagrams shown in the drawings are merely functional entities, which do not necessarily have to correspond to physically independent entities. That is, these functional entities can be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0026] The flowcharts shown in the drawings are merely exemplary illustrations, which do not necessarily include all the contents and operations / steps, and are not necessarily executed in the order described. For example, some operations / steps can be further decomposed, and some operations / steps can be combined or partially combined, so that the actual execution order can be changed according to the actual situation.

[0027] In the present application, "multiple" refers to two or more. The association relationship of "and / or" describes the associated objects, which means that there can be three relationships, for example, A and / or B can represent the following three cases: A exists alone, A and B exist together, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after it.

[0028] Currently, vehicle dust removal technology is mostly focused on in-vehicle dust removal, and there is less research on active air intake grille dust removal. The mechanical rigid connection dust removal mechanism has the problem of low on-vehicle feasibility, and the current cleaning method of the active air intake grille of the vehicle is mostly manual wiping or cleaning, and the dust removal efficiency is low. Based on this: Figure 1A schematic diagram of an embodiment of the active air intake grille vibration dust removal device provided in this application is shown. Please refer to... Figure 1 As shown, the device 10 includes: an electronic fan 11, a shroud 12, and a controller 13; the shroud 12 connects the electronic fan 11 to the active air intake grille 14; piezoelectric ceramic plates are disposed on the blades of the active air intake grille 14.

[0029] The system includes: an electric fan 11, installed in the vehicle's cooling system, which generates airflow by rotating its blades via a motor; and a deflector 12, a channel connecting the electric fan 11 and the active air intake grille 14, used to guide the airflow and transmit the vibrational energy generated by the electric fan 11 to the active air intake grille. A controller 13 is an electronic control unit (ECU) in the vehicle, used to acquire sensor signals, execute PID algorithms, and output commands to control the operating mode of the electric fan 11 and the drive of the piezoelectric ceramic plates. The active air intake grille 14 is a blade assembly installed at the front of the vehicle with adjustable opening and closing states, used to control the airflow into the engine compartment for thermal management and reduced wind resistance. The piezoelectric ceramic plates are functional ceramic material sheets adhered to specific locations (such as the root and middle) of the active air intake grille blades; they generate deformation vibrations when an alternating voltage is applied, serving as actuators to drive the blade vibrations.

[0030] The controller 13 is used for: When the electronic fan 11 is working, the first current vibration frequency of the electronic fan 11 is obtained.

[0031] The first current vibration frequency refers to the frequency of the mechanical vibration signal generated by the electronic fan 11 during real-time operation.

[0032] Based on the first current vibration frequency, the driving frequency of the piezoelectric ceramic sheet is dynamically adjusted by a PID algorithm to control the vibration frequency of the active air intake grille 14 to remain synchronized with that of the electronic fan 11.

[0033] The PID algorithm is used to dynamically calculate and adjust the drive signal output to the piezoelectric ceramic sheet based on the vibration frequency error, so as to achieve fast and stable frequency tracking control. The drive frequency refers to the frequency of the alternating voltage signal output by the controller 13 to the piezoelectric ceramic sheet, which determines the vibration frequency of the piezoelectric ceramic sheet and the active air intake grille blades attached to it.

[0034] When the vibration frequency of the active air intake grille 14 is synchronized with that of the electronic fan 11, the electronic fan 11 is controlled to switch to the reverse blowing mode to vibrate and remove dust from the active air intake grille 14.

[0035] The reverse blowing mode refers to the mode in which the direction of rotation of the blades of the electronic fan 11 is reversed by controlling the drive circuit of the electronic fan 11, thereby generating an airflow mode that blows out of the vehicle.

[0036] It should be noted that, Figure 2 The diagram shows the specific structure of the active air intake grille vibration dust removal device. Figure 2 The electronic fan 11 is connected to the active air intake grille 14 via the air deflector 12.

[0037] The technical solution of this embodiment can improve the dust removal efficiency of the vehicle's active air intake grille, optimize the cleaning effect, reduce the reliance on manual cleaning, and improve the vehicle's heat dissipation performance and operational stability.

[0038] In one alternative embodiment, an accelerometer is fixedly mounted on the piezoelectric ceramic sheet; the controller 13 is specifically used for: The second current vibration frequency of the active air intake grille 14 is collected using the accelerometer.

[0039] The accelerometer refers to a sensor attached to a piezoelectric ceramic plate with high-temperature epoxy resin, used to measure the acceleration of blade vibration in real time, and then calculate the vibration frequency and amplitude. The second, current vibration frequency, refers to the actual vibration frequency of the active air intake grille blades, collected in real time by the accelerometer.

[0040] Based on the frequency difference between the first current vibration frequency and the second current vibration frequency, the driving frequency of the piezoelectric ceramic sheet is dynamically adjusted by a PID algorithm to control the second current vibration frequency of the active air intake grille 14 to remain synchronized with the first current vibration frequency of the electronic fan 11.

[0041] The vibration frequency difference refers to the real-time vibration frequency difference between the first current vibration frequency and the second current vibration frequency.

[0042] Specifically: 1) Calculate the vibration frequency difference between the first and second current vibration frequencies; 2) Input the vibration frequency difference into a PID (Proportional-Integral-Derivative) algorithm to generate a drive frequency adjustment; 3) Superimpose the drive frequency adjustment onto the current drive frequency of the piezoelectric ceramic sheet to generate a target drive frequency command; 4) Apply the target drive frequency command to the piezoelectric ceramic sheet through a voltage drive circuit; 5) Continuously implement closed-loop feedback control until the absolute value of the difference between the second and first current vibration frequencies is less than a preset vibration frequency value, achieving synchronization. It should be noted that the voltage drive circuit is a signal conversion and amplification circuit integrated within the controller 13, used to convert the low-frequency digital drive command output by the controller 13 into a high-voltage, high-frequency alternating voltage signal to precisely drive the piezoelectric ceramic sheet to vibrate at the target frequency.

[0043] In the above-mentioned optional methods, by setting an accelerometer on the piezoelectric ceramic sheet to collect the vibration frequency of the active air intake grille, and dynamically adjusting the driving frequency of the piezoelectric ceramic sheet based on the difference with the vibration frequency of the electric fan, the active air intake grille and the electric fan vibration can be synchronized more accurately, which further improves the dust removal efficiency and cleaning effect, and enhances the vehicle's heat dissipation performance and operational stability.

[0044] In one alternative approach, the absolute value of the vibration frequency error between the second current vibration frequency of the active air intake grille 14 after synchronization and the first current vibration frequency of the electronic fan 11 after synchronization is less than a preset vibration frequency value.

[0045] The preset vibration frequency value refers to the maximum frequency error threshold (e.g., absolute value less than 0.5Hz) that is preset to determine whether the active air intake grille 14 and the electric fan 11 have reached vibration synchronization.

[0046] It should be noted that the synchronization adjustment process meets the following requirements. Synchronization accuracy: ±0.5Hz, response time <100ms. Δf is the allowable real-time frequency deviation threshold during dynamic frequency modulation. (), representing the vibration frequency of the active air intake grille 14 when the controller adjusts the driving frequency of the piezoelectric ceramic sheet. Vibration frequency of electric fan 11 The upper limit of the instantaneous difference between them; while the synchronization accuracy of ±0.5Hz is the value after the vibration frequency adjustment reaches a stable state. and The final frequency error range between them, that is, the range achieved by the PID algorithm. The results, which gradually converge to ≤0.5Hz, together constitute the core control parameters for electromechanical coupling resonance: It is a constraint condition for the dynamic adjustment process, and ±0.5Hz is the performance index achieved synchronously.

[0047] Among the above-mentioned optional methods, by specifying the vibration frequency error range after the active air intake grille and the electric fan are synchronized, it is ensured that the vibration frequencies of the two are highly consistent, thereby achieving vibration dust removal more effectively, further optimizing the cleaning effect of the vehicle's active air intake grille, and improving the vehicle's heat dissipation performance and operational stability.

[0048] In one alternative embodiment, a dust sensor is disposed at the center of the blades of the active air intake grille 14; the dust sensor is used to detect the dust concentration on the surface of the blades of the active air intake grille 14; the controller 13 is further used to: The current dust concentration value of the dust sensor is read, and it is determined whether the current dust concentration value is greater than a preset concentration value, and the determination result is obtained.

[0049] The dust sensor is a detection device installed on the surface of the active air intake grille blades (e.g., in the central recess) to measure the dust concentration accumulated on the blade surface. The dust concentration on the blade surface is defined as the amount of dust particles adhering to a unit surface area of ​​the active air intake grille blades. The current dust concentration value is a specific numerical value or signal representing the dust concentration on the blade surface, detected and output in real time by the dust sensor. The preset concentration value is a pre-set dust concentration threshold, such as 200 μg / m³, used to determine whether to trigger the automatic dust removal program.

[0050] When the judgment result is yes, the active air intake grille 14 is adjusted to a fully open state and the electronic fan 11 is controlled to work.

[0051] The "fully open" state refers to the state in which all blades of the active air intake grille 14 are adjusted to be fully open to maximize the airflow channel. When the active air intake grille 14 is in the fully open state, it can maximize the cross-section of the airflow channel, ensuring that the vibration energy generated by the electric fan 11 and the reverse airflow fully cover the blade surface. After the electric fan 11 is started, its mechanical vibration is transmitted to the active air intake grille blades through the guide shroud. At the same time, the controller 13 executes the subsequent vibration synchronization and reverse blowing control process to achieve efficient dust removal.

[0052] like Figure 3 As shown, it should be noted that when the active air intake grille dust removal mode switch set on the vehicle's large screen is turned on, the controller 13 reads the dust concentration value on the blade surface detected by the dust sensor in real time. If the current dust concentration value is greater than or equal to the preset threshold of 200μg / m3, the controller 13 executes the dust removal process: first, it controls the active air intake grille 14 to be fully open to maximize the airflow channel; then, it starts the electric fan 11 and controls it to switch to the reverse blowing mode through the H-bridge circuit; at the same time, it activates the vibration excitation source of the electric fan 11 and dynamically adjusts the driving frequency of the piezoelectric ceramic sheet through the PID algorithm, so that the vibration frequency of the active air intake grille 14 blades is synchronized with the vibration frequency of the electric fan 11 in real time (accuracy ±0.5Hz, response time <100ms). During this process, if the motor temperature of the electric fan 11 exceeds 80℃, the controller 13 triggers the derating protection mechanism, suspends the dust removal process and restores the forward cooling mode of the electric fan 11 to ensure safety; if the motor temperature of the electric fan 11 does not exceed 80℃, it continues to perform vibration dust removal, and after completion, it restores the forward cooling mode of the electric fan 11.

[0053] Among the above-mentioned optional methods, by setting a dust sensor at the center of the active air intake grille blades, the dust concentration can be monitored in real time. When the dust concentration exceeds the standard, the active air intake grille is automatically opened and the electric fan is started to remove dust, realizing intelligent dust removal control, further improving dust removal efficiency, reducing reliance on manual cleaning, and better maintaining the vehicle's heat dissipation performance and operational stability.

[0054] In one alternative embodiment, the dust sensor includes an infrared laser diode and a silicon photodiode; The infrared laser diode vertically illuminates the blade surface of the active air intake grille 14 in a pulsed manner. The silicon photodiode converts the current scattered light signal formed by the current incident light of the infrared laser diode into a current current signal, and then converts it into a current voltage signal through a cross-group amplifier, so as to determine the current dust concentration value based on the current voltage signal.

[0055] The current incident light is based on the dust particles on the blade surface of the active air intake grille 14 to form the current scattered light signal.

[0056] It should be noted that the infrared laser diode is the light source device inside the dust sensor, used to emit pulsed infrared laser beams that vertically illuminate the surface of the active air intake grille blades. The silicon photodiode is the photoelectric conversion device inside the dust sensor, used to receive the light signal scattered by dust particles on the blade surface and convert it into a weak current signal. The current incident light refers to the beam emitted by the infrared laser diode and illuminating the surface of the active air intake grille blades at the current moment. The current scattered light signal refers to the light signal received by the silicon photodiode due to the scattering effect when the current incident light illuminates the dust particles on the blade surface. The current current signal refers to the weak current signal generated by the silicon photodiode based on the received current scattered light signal. The cross-group amplifier is used to proportionally amplify the weak current signal generated by the silicon photodiode and convert it into a corresponding voltage signal. The current voltage signal refers to the electrical signal output after conversion and amplification by the cross-group amplifier, whose voltage amplitude is related to the current dust concentration. The dust particles on the blade surface refer to the dust particles attached to the surface of the active air intake grille blades, whose presence causes scattering of the incident light.

[0057] In the above-mentioned optional methods, the combination of infrared laser diodes and silicon photodiodes can accurately detect the dust concentration on the surface of the active air intake grille blades, providing accurate signals to the controller so as to promptly initiate dust removal operations, further ensuring the cleaning effect of the vehicle's active air intake grille and improving the vehicle's heat dissipation performance and operational stability.

[0058] In an alternative embodiment, the fairing 12 is made of carbon fiber and is connected to the active air intake grille 14 via a flexible silicone pad.

[0059] The carbon fiber material is the main manufacturing material of the fairing, a lightweight, high-strength carbon fiber composite material with good vibration transmission characteristics. The elastic silicone gasket refers to a flexible damping element used to connect the fairing 12 and the active air intake grille 14. It is made of silicone rubber and provides elastic support and optimizes vibration energy transmission.

[0060] Among the above-mentioned optional methods, it is clear that the fairing is made of carbon fiber and connected to the active air intake grille through elastic silicone gaskets. This design not only ensures the strength and durability of the fairing, but also has good shock absorption and sealing effects, which helps to improve the transmission efficiency of vibration energy, enhance the dust removal effect, and reduce the impact of noise and vibration on other parts of the vehicle, further optimizing the overall performance of the vehicle.

[0061] In an alternative embodiment, the controller 13 is specifically used for: The electronic fan 11 is controlled to switch to the reverse blowing mode via the H-bridge circuit.

[0062] The H-bridge circuit is a circuit topology used to drive an electronic fan motor. By controlling the on / off states of four switching transistors, the forward, reverse, and braking control of the motor (fan) can be achieved.

[0063] It should be noted that, Figure 4 A schematic diagram illustrating the principle of the active air intake grille vibration dust removal device in this embodiment is shown. Figure 4 As shown, when the electric fan 11 operates as the driving end, it generates mechanical vibration. This vibrational energy is transmitted to the active air intake grille 14 through the air deflector 12. The air deflector 12 is made of carbon fiber and is connected to the active air intake grille 14 through elastic silicone gaskets. Its structural design precisely matches the resonant frequency of the electric fan 11 and the active air intake grille 14, achieving efficient transmission and amplitude amplification of vibrational energy. The active air intake grille 14, acting as the receiving end, has dust adhering to its blade surface removed due to high-frequency vibration under the resonance effect. Simultaneously, the electric fan 11 switches to reverse blowing mode via an H-bridge circuit, generating airflow towards the outside of the vehicle. This reverse airflow acts on the surface of the active air intake grille 14, blowing the vibration-removed dust particles out of the vehicle, thus completing the dust removal process for the active air intake grille 14. Throughout the entire process, the medium air acts as the carrier for vibrational energy transmission and simultaneously carries the dust removal function of the reverse airflow.

[0064] In the above-mentioned optional methods, the H-bridge circuit of the electronic fan is used to control it to switch to the reverse blowing mode, which realizes precise control of the blowing direction of the electronic fan, ensures that reverse blowing is performed at the appropriate time for dust removal, improves dust removal efficiency, optimizes cleaning effect, and thus improves the vehicle's heat dissipation performance and operational stability.

[0065] Figure 5A flowchart illustrating an embodiment of the active air intake grille vibration dust removal method provided in this application is shown, the method being executed by a controller. Please refer to... Figure 5 As shown, the method includes the following steps: Step S110: When the electronic fan is working, the first current vibration frequency of the electronic fan is obtained; wherein, the electronic fan is connected to the active air intake grille through a guide shroud, and piezoelectric ceramic plates are disposed on the blades of the active air intake grille.

[0066] Step S120: Based on the first current vibration frequency, the driving frequency of the piezoelectric ceramic sheet is dynamically adjusted by a PID algorithm to control the vibration frequency of the active air intake grille to remain synchronized with that of the electronic fan.

[0067] Step S130: When the vibration frequency of the active air intake grille is synchronized with that of the electronic fan, the electronic fan is controlled to switch to reverse blowing mode to vibrate and remove dust from the active air intake grille.

[0068] In one alternative embodiment, an accelerometer is fixedly mounted on the piezoelectric ceramic sheet; step S120 specifically includes: Using the accelerometer, the second current vibration frequency of the active air intake grille is collected; Based on the frequency difference between the first current vibration frequency and the second current vibration frequency, the driving frequency of the piezoelectric ceramic sheet is dynamically adjusted by a PID algorithm to keep the second current vibration frequency of the active air intake grille synchronized with the first current vibration frequency of the electronic fan.

[0069] In one alternative approach, the absolute value of the vibration frequency error between the second current vibration frequency of the active air intake grille after synchronization and the first current vibration frequency of the electronic fan after synchronization is less than a preset vibration frequency value.

[0070] In one optional embodiment, a dust sensor is disposed at the center of the blades of the active air intake grille; the dust sensor is used to detect the dust concentration on the surface of the blades of the active air intake grille; the method further includes: Read the current dust concentration value of the dust sensor and determine whether the current dust concentration value is greater than a preset concentration value to obtain the determination result; When the judgment result is yes, control the active air intake grille to be fully open and control the electronic fan to work.

[0071] In one alternative embodiment, the dust sensor includes an infrared laser diode and a silicon photodiode; The infrared laser diode vertically illuminates the blade surface of the active air intake grille in a pulsed manner. The silicon photodiode converts the current scattered light signal formed by the current incident light of the infrared laser diode into a current current signal, and then converts it into a current voltage signal through a cross-group amplifier, so as to determine the current dust concentration value based on the current voltage signal. The current incident light is based on the dust particles on the blade surface of the active air intake grille to form the current scattered light signal.

[0072] In one alternative, the fairing is made of carbon fiber and is connected to the active air intake grille via a flexible silicone pad.

[0073] In one alternative approach, the step of controlling the electronic fan to switch to reverse airflow mode further includes: The electronic fan is controlled to switch to the reverse blowing mode via the H-bridge circuit.

[0074] The technical solution of this embodiment can improve the dust removal efficiency of the vehicle's active air intake grille, optimize the cleaning effect, reduce the reliance on manual cleaning, and improve the vehicle's heat dissipation performance and operational stability.

[0075] It should be noted that the active air intake grille vibration dust removal method provided in the above embodiments and the active air intake grille vibration dust removal device provided in the aforementioned embodiments belong to the same concept. The specific operation methods of each module and unit have been described in detail in the method embodiments, and will not be repeated here.

[0076] Figure 6 The diagram shows a structural schematic of an embodiment of the active air intake grille vibration dust removal device provided in this application. It also shows a structural schematic of a computer system suitable for implementing the active air intake grille vibration dust removal device of this application. The specific embodiments of this application do not limit the specific implementation of the active air intake grille vibration dust removal device.

[0077] Please see Figure 6 As shown, the active air intake grille vibration dust removal device includes: a controller; and a memory for storing one or more programs, which, when executed by the controller, enable the controller to implement the above-described active air intake grille vibration dust removal method.

[0078] Please continue reading. Figure 6As shown, the computer system 500 of the active air intake grille vibration dust collector includes a central processing unit (CPU) 501, which can perform various appropriate actions and processes according to a program stored in read-only memory (ROM) 502 or a program loaded from storage section 508 into random access memory (RAM) 503, such as executing the methods in the above embodiments. The RAM 503 also stores various programs and data required for system operation. The CPU 501, ROM 502, and RAM 503 are interconnected via a bus 504. An input / output (I / O) interface 505 is also connected to the bus 504.

[0079] The following components are connected to I / O interface 505: an input section 506 including a keyboard, mouse, etc.; an output section 507 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 508 including a hard disk, etc.; and a communication section 509 including a network interface card such as a LAN (Local Area Network) card, modem, etc. The communication section 509 performs communication processing via a network such as the Internet. A drive 510 is also connected to I / O interface 505 as needed. Removable media 511, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., are installed on drive 510 as needed so that computer programs read from them can be installed into storage section 508 as needed.

[0080] Specifically, according to embodiments of this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program including a computer program for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication section 509, and / or installed from removable medium 511. When the computer program is executed by central processing unit (CPU) 501, it performs various functions defined in the system of this application.

[0081] Another aspect of this application provides a computer-readable storage medium storing at least one executable instruction that, when executed on an active air intake grille vibration dust removal device / equipment, causes the active air intake grille vibration dust removal device / equipment to perform the operation of the active air intake grille vibration dust removal method as described above. This computer-readable storage medium may be included in the active air intake grille vibration dust removal device described in the above embodiments, or it may exist independently and not assembled into the electronic device.

[0082] Another aspect of this application provides a computer program product or computer program including at least one executable instruction that, when operated on an active air intake grille vibration dust removal device / equipment, causes the active air intake grille vibration dust removal device / equipment to perform the active air intake grille vibration dust removal method as described above.

[0083] Specifically, the executable instructions can be used to cause the active air intake grille vibration dust removal equipment / device to perform the following operations: When the electronic fan is working, the first current vibration frequency of the electronic fan is obtained; wherein, the electronic fan is connected to the active air intake grille through a guide shroud, and piezoelectric ceramic plates are disposed on the blades of the active air intake grille; Based on the first current vibration frequency, the driving frequency of the piezoelectric ceramic sheet is dynamically adjusted by a PID algorithm to control the vibration frequency of the active air intake grille to remain synchronized with that of the electronic fan; When the vibration frequency of the active air intake grille is synchronized with that of the electric fan, the electric fan is controlled to switch to reverse blowing mode to vibrate and remove dust from the active air intake grille.

[0084] In one optional embodiment, an accelerometer is fixedly mounted on the piezoelectric ceramic sheet; the step of dynamically adjusting the driving frequency of the piezoelectric ceramic sheet based on the first current vibration frequency using a PID algorithm to control the vibration frequency of the active air intake grille to remain synchronized with that of the electronic fan further includes: Using the accelerometer, the second current vibration frequency of the active air intake grille is collected; Based on the frequency difference between the first current vibration frequency and the second current vibration frequency, the driving frequency of the piezoelectric ceramic sheet is dynamically adjusted by a PID algorithm to keep the second current vibration frequency of the active air intake grille synchronized with the first current vibration frequency of the electronic fan.

[0085] In one alternative approach, the absolute value of the vibration frequency error between the second current vibration frequency of the active air intake grille after synchronization and the first current vibration frequency of the electronic fan after synchronization is less than a preset vibration frequency value.

[0086] In one optional embodiment, a dust sensor is disposed at the center of the blades of the active air intake grille; the dust sensor is used to detect the dust concentration on the surface of the blades of the active air intake grille; the method further includes: Read the current dust concentration value of the dust sensor and determine whether the current dust concentration value is greater than a preset concentration value to obtain the determination result; When the judgment result is yes, control the active air intake grille to be fully open and control the electronic fan to work.

[0087] In one alternative embodiment, the dust sensor includes an infrared laser diode and a silicon photodiode; The infrared laser diode vertically illuminates the blade surface of the active air intake grille in a pulsed manner. The silicon photodiode converts the current scattered light signal formed by the current incident light of the infrared laser diode into a current current signal, and then converts it into a current voltage signal through a cross-group amplifier, so as to determine the current dust concentration value based on the current voltage signal. The current incident light is based on the dust particles on the blade surface of the active air intake grille to form the current scattered light signal.

[0088] In one alternative, the fairing is made of carbon fiber and is connected to the active air intake grille via a flexible silicone pad.

[0089] In one alternative approach, the step of controlling the electronic fan to switch to reverse airflow mode further includes: The electronic fan is controlled to switch to the reverse blowing mode via the H-bridge circuit.

[0090] The technical solution of this embodiment can improve the dust removal efficiency of the vehicle's active air intake grille, optimize the cleaning effect, reduce the reliance on manual cleaning, and improve the vehicle's heat dissipation performance and operational stability.

[0091] It should be noted that the computer-readable medium shown in the embodiments of this application can be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), flash memory, optical fiber, portable compact disc read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this application, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this application, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying a computer-readable computer program. The transmitted data signal can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. The computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The computer program contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to wireless, wired, etc., or any suitable combination thereof.

[0092] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. Each block in a flowchart or block diagram may represent a module, segment, or portion of code, which contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram or flowchart, and combinations of blocks in a block diagram or flowchart, may be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0093] The units described in the embodiments of this application can be implemented in software or hardware, and the described units can also be located in a processor. The names of these units do not necessarily limit the specific unit itself.

[0094] According to one aspect of the embodiments of this application, a computer system is also provided, including a Central Processing Unit (CPU), which can perform various appropriate actions and processes based on a program stored in read-only memory (ROM) or a program loaded from storage into random access memory (RAM), such as performing the methods described above. Various programs and data required for system operation are also stored in the RAM. The CPU, ROM, and RAM are interconnected via a bus. Input / output (I / O) interfaces are also connected to the bus.

[0095] The following components are connected to the I / O interface: input components including keyboards, mice, etc.; output components including cathode ray tubes (CRTs), liquid crystal displays (LCDs), and speakers; storage components including hard drives; and communication components including network interface cards such as LAN (Local Area Network) cards and modems. The communication components perform communication processing via networks such as the Internet. Drives are also connected to the I / O interface as needed. Removable media, such as disks, optical discs, magneto-optical discs, semiconductor memories, etc., are installed on the drive as needed so that computer programs read from them can be installed into the storage components as required.

[0096] The above description is merely a preferred exemplary embodiment of this application and is not intended to limit the implementation of this application. Those skilled in the art can easily make corresponding modifications or alterations based on the main concept and spirit of this application. Therefore, the scope of protection of this application should be determined by the scope of protection claimed in the claims.

Claims

1. A vehicle active air intake grille vibration dust removal device, characterized in that, The device includes: an electric fan, a shroud, and a controller; the shroud connects the electric fan to an active air intake grille; piezoelectric ceramic plates are disposed on the blades of the active air intake grille; the controller is used for: When the electronic fan is working, the first current vibration frequency of the electronic fan is obtained; Based on the first current vibration frequency, the driving frequency of the piezoelectric ceramic sheet is dynamically adjusted by a PID algorithm to control the vibration frequency of the active air intake grille to remain synchronized with that of the electronic fan; When the vibration frequency of the active air intake grille is synchronized with that of the electric fan, the electric fan is controlled to switch to reverse blowing mode to vibrate and remove dust from the active air intake grille.

2. The apparatus according to claim 1, characterized in that, An accelerometer is fixedly mounted on the piezoelectric ceramic sheet; the controller is specifically used for: Using the accelerometer, the second current vibration frequency of the active air intake grille is collected; Based on the frequency difference between the first current vibration frequency and the second current vibration frequency, the driving frequency of the piezoelectric ceramic sheet is dynamically adjusted by a PID algorithm to keep the second current vibration frequency of the active air intake grille synchronized with the first current vibration frequency of the electronic fan.

3. The apparatus according to claim 2, characterized in that, The absolute value of the vibration frequency error between the second current vibration frequency of the active air intake grille after synchronization and the first current vibration frequency of the electronic fan after synchronization is less than the preset vibration frequency value.

4. The apparatus according to any one of claims 1 to 3, characterized in that, A dust sensor is installed at the center of the blades of the active air intake grille; the dust sensor is used to detect the dust concentration on the surface of the blades of the active air intake grille; the controller is also used for: Read the current dust concentration value of the dust sensor and determine whether the current dust concentration value is greater than a preset concentration value to obtain the determination result; When the judgment result is yes, the active air intake grille is adjusted to the fully open state and the electronic fan is controlled to work.

5. The apparatus according to claim 4, characterized in that, The dust sensor includes: an infrared laser diode and a silicon photodiode; The infrared laser diode vertically illuminates the blade surface of the active air intake grille in a pulsed manner. The silicon photodiode converts the current scattered light signal formed by the current incident light of the infrared laser diode into a current current signal, and then converts it into a current voltage signal through a cross-group amplifier, so as to determine the current dust concentration value based on the current voltage signal. The current incident light is based on the dust particles on the blade surface of the active air intake grille to form the current scattered light signal.

6. The apparatus according to claim 1, characterized in that, The fairing is made of carbon fiber and is connected to the active air intake grille via elastic silicone pads.

7. The apparatus according to claim 1, characterized in that, The controller is specifically used for: The electronic fan is controlled to switch to the reverse blowing mode via the H-bridge circuit.

8. A method for active air intake grille vibration dust removal in vehicles, characterized in that, The method includes: When the electronic fan is working, the first current vibration frequency of the electronic fan is obtained; wherein, the electronic fan is connected to the active air intake grille through a guide shroud, and piezoelectric ceramic plates are disposed on the blades of the active air intake grille; Based on the first current vibration frequency, the driving frequency of the piezoelectric ceramic sheet is dynamically adjusted by a PID algorithm to control the vibration frequency of the active air intake grille to remain synchronized with that of the electronic fan; When the vibration frequency of the active air intake grille is synchronized with that of the electric fan, the electric fan is controlled to switch to reverse blowing mode to vibrate and remove dust from the active air intake grille.

9. A vehicle active air intake grille vibration dust removal device, characterized in that, include: Controller; A memory for storing one or more programs, which, when executed by a controller, enable the controller to implement the vehicle active air intake grille vibration dust removal method as described in claim 8.

10. A computer-readable storage medium, characterized in that, The storage medium stores at least one executable instruction, which, when the vehicle active air intake grille vibration dust removal device / equipment is run, causes the vehicle active air intake grille vibration dust removal device / equipment to perform the operation of the vehicle active air intake grille vibration dust removal method as described in claim 8.

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