Windscreen wiper, control method of windscreen wiper and vehicle equipment

Abstract

The invention relates to the technical field of automobile windscreen wipers, and discloses a windscreen wiper, a control method of the windscreen wiper and vehicle equipment, and the windscreen wiper comprises a windscreen wiper body, a rainfall sensor and a control module. The windscreen wiper body comprises a connecting rod structure, a wiper blade, a spring and an electric worm executing mechanism, wherein the spring and the electric worm executing mechanism are mechanically connected. The wiper blade is located at the driven end of the connecting rod structure, the spring is mechanically connected with the connecting rod structure, and the fixed end of the electric worm executing mechanism and the fixed end of the connecting rod structure are fixedly installed on a vehicle. The rainfall sensor is used for detecting rainfall in real time and generating a rainfall signal; the control module is used for controlling the electric worm executing mechanism according to the rainfall signal when it is judged that the windscreen wiper is in the swing state so as to adjust the pressure applied to the windscreen by the wiper blade. The control module of the windscreen wiper adjusts the pressure of the wiper blade according to the rainfall, so that cleaning is more efficient.

Description

Technical Field

[0001] The present application relates to the technical field of automobile windshield wipers, and in particular to a windshield wiper, a control method for a windshield wiper, and vehicle equipment. Background Art

[0002] As a critical safety component during driving, automobile wipers' core function is to effectively remove rain, dust, and other foreign matter from the windshield, ensuring a clear and stable field of vision for the driver. However, currently used wiper systems often utilize a fixed force structure. This design not only results in suboptimal cleaning performance but also poses the risk of unpredictable safety hazards. Summary of the Invention

[0003] In view of this, the embodiments of the present application provide a wiper, a wiper control method and vehicle equipment, which can effectively solve the problems in the prior art that the wiper system adopts a fixed force structure, resulting in inefficient cleaning and risks.

[0004] In a first aspect, the present application provides a wiper, comprising: A wiper body comprising a connecting rod structure, a wiper blade, and a mechanically connected spring and an electric worm actuator; wherein the wiper blade is located at the driven end of the connecting rod structure, the spring is mechanically connected to the connecting rod structure, and the fixed end of the electric worm actuator and the fixed end of the connecting rod structure are both used for fixed installation on the vehicle; Rainfall sensor, used to detect rainfall in real time and generate rainfall signal; A control module is respectively connected to the electric worm actuator, the rain sensor and the vehicle control system of the vehicle, and is used to control the electric worm actuator according to the rain signal when it is determined that the wiper is in a swinging state, so as to adjust the pressure applied by the wiper blade to the windshield.

[0005] In some embodiments, when it is determined that the wiper is in the swinging state, controlling the electric worm actuator according to the rain signal to adjust the pressure applied by the wiper blade to the windshield includes: When it is determined that the wiper is in a swinging state, determining the cleanliness of the wiper according to the rain signal; When it is determined that the wiper blade is unqualified in cleaning, the electric worm actuator is controlled to increase the pressure applied by the wiper blade to the windshield according to a preset ratio; When it is determined that the wiper is cleaned to a qualified standard, the pressure applied by the wiper blade to the windshield is reduced according to a preset ratio by controlling the electric worm actuator.

[0006] In some embodiments, the number of times the pressure applied by the wiper blade to the windshield is continuously increased or continuously decreased does not exceed a preset number.

[0007] In some embodiments, the electric worm actuator includes a worm, an active part and a motor that are sequentially connected in transmission. The worm is mechanically connected to the spring, and the motor is used to control the telescopic action of the worm through the active part according to the signal of the control module.

[0008] In some embodiments, the electric worm actuator further includes a Hall sensor, which is communicatively connected to the control module. The control module is further configured to obtain the telescopic movement of the worm according to a signal from the Hall sensor.

[0009] In some embodiments, the wiper body also includes a pressure sensor, which is fixedly installed between the spring and the connecting rod structure and is communicatively connected to the control module. The control module is also used to adjust the output of the electric worm actuator according to the pressure signal of the pressure sensor.

[0010] In some embodiments, the control module is further used to obtain the status of the vehicle through the vehicle control system. When it is determined that the vehicle is in a parked state, the electric worm actuator is controlled to drive the wiper blade away from the windshield to a non-contact position.

[0011] In a second aspect, an embodiment of the present application provides a wiper control method, which is applied to at least one wiper described in the first aspect, comprising: obtaining the working status of the wiper by the vehicle control system; When it is determined that the wiper is in the swinging state, obtaining a rain signal from the rain sensor; The electric worm actuator is controlled according to the rain signal to adjust the pressure applied by the wiper blade to the windshield.

[0012] In a third aspect, the present invention provides a vehicle device, comprising: at least one wiper as described in the first aspect above.

[0013] In some embodiments, the wiper control module is a vehicle control system.

[0014] The embodiments of the present application have the following beneficial effects: The wiper of the present application includes: a wiper body, a rain sensor, and a control module. The wiper body includes a connecting rod structure, a wiper blade, and a mechanically connected spring and electric worm actuator. The wiper blade is located at the driven end of the connecting rod structure, the spring is mechanically connected to the connecting rod structure, and the fixed end of the electric worm actuator and the fixed end of the connecting rod structure are both used for fixed installation on the vehicle. The rain sensor is used to detect rainfall in real time and generate a rainfall signal. The control module is respectively connected to the electric worm actuator, the rain sensor, and the vehicle control system. When the wiper is determined to be in a swinging state, it controls the electric worm actuator according to the rain signal to adjust the pressure applied by the wiper blade to the windshield. The control module of the wiper of the present application determines the cleanliness of the wiper based on the rainfall and adjusts the wiper blade pressure accordingly. When the cleanliness is qualified, the pressure is reduced to reduce wear. When the cleanliness is unqualified, the pressure is increased to ensure a clean wipe, making cleaning more efficient. At the same time, it can avoid excessive wear and extend the life of the wiper blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 A first application schematic diagram of a wiper according to an embodiment of the present application is shown; Figure 2 A first structural schematic diagram of a wiper body according to an embodiment of the present application is shown; Figure 3 A second structural schematic diagram of the wiper body according to an embodiment of the present application is shown; Figure 4 A schematic flow chart showing a method for controlling a windshield wiper according to an embodiment of the present application is shown; Figure 5 A second application schematic diagram of the wiper according to an embodiment of the present application is shown.

[0017] Description of main component symbols: 10: Wiper; 11: Wiper body; 111: Connecting rod structure; 112: Wiper blade; 113: Spring; 114: Electric worm actuator; 115: Pressure sensor; 12: Rain sensor; 13: Control module; 20: Vehicle; 21: Vehicle control system; 201: Windshield. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0019] The components of the embodiments of the present application generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but rather merely represents selected embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort are within the scope of protection of the present application.

[0020] Hereinafter, the terms "including", "having" and their cognates used in various embodiments of the present application are intended only to indicate specific features, numbers, steps, operations, elements, components or combinations of the aforementioned items, and should not be understood as excluding the existence of one or more other features, numbers, steps, operations, elements, components or combinations of the aforementioned items or adding the possibility of one or more features, numbers, steps, operations, elements, components or combinations of the aforementioned items. In addition, the terms "first", "second", "third" and the like are only used to distinguish descriptions and should not be understood as indicating or implying relative importance.

[0021] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art to which the various embodiments of the present application belong. The terms (such as those defined in generally used dictionaries) will be interpreted as having the same meaning as in the context of the relevant technical field and will not be interpreted as having an idealized meaning or an overly formal meaning unless clearly defined in the various embodiments of the present application.

[0022] The following describes some embodiments of the present application in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0023] Considering that the existing wiper systems use a fixed force structure, resulting in inefficient cleaning and risks, the present invention provides a wiper, a wiper control method, and a vehicle device. The wiper control module of the present invention adjusts the wiper blade pressure according to the rainfall, reducing the pressure to reduce wear in light rain and increasing the pressure to ensure a clean wipe in heavy rain, making cleaning more efficient. It also avoids excessive wear and extends the life of the wiper blade.

[0024] The wiper 10 will be described below with reference to some specific embodiments.

[0025] It is understandable that the wiper 10 of the embodiment of the present application can be used in any type of vehicle, and the left and right swing of the wiper 10 can be controlled by the wiper motor in the vehicle equipment, which will not be described in detail in this solution.

[0026] Figure 1 A schematic diagram of an application of a wiper blade 10 according to an embodiment of the present application is shown. Exemplarily, the wiper blade 10 includes a wiper body 11, a rain sensor 12, and a control module 13. The wiper body 11 is fixedly mounted on a vehicle 20, and the position of the rain sensor 12 can be adjusted based on actual application requirements. Exemplarily, the rain sensor 12 can be positioned inside the front windshield 201 of the vehicle 20, near the rearview mirror of the vehicle 20, to detect the amount of rain in the vehicle 20 environment in real time and generate a rain signal, while being immune to airflow interference generated by the vehicle 20 as it moves.

[0027] The rain sensor 12 typically uses optical principles, emitting and receiving infrared rays to calculate the amount of rain on the windshield 201 based on the refraction and reflection of light by rainwater on the windshield 201. For example, when the rainfall is light, the refraction and reflection of light vary slightly, and the sensor outputs a small rainfall signal. When the rainfall is heavy, the refraction and reflection of light vary significantly, and the sensor outputs a large rainfall signal. The rain sensor 12 transmits the detected rainfall signal to the control module 13, which provides a basis for controlling the electric worm actuator 114. The rain sensor 12 has high accuracy, is unaffected by strong light or darkness, and has strong anti-interference capabilities.

[0028] The control module 13 is disposed inside the vehicle 20 . The control module 13 may be any type of control chip. Furthermore, the control module 13 may also be the vehicle control system 21 .

[0029] Specifically, Figure 2 A schematic diagram of the structure of a wiper body 11 according to an embodiment of the present application is shown. Exemplarily, the wiper body 11 includes a connecting rod structure 111, a wiper blade 112, and a mechanically connected spring 113 and an electric worm actuator 114. The wiper blade 112 is located at the driven end of the connecting rod structure 111, the spring 113 is mechanically connected to the connecting rod structure 111, and the fixed ends of the electric worm actuator 114 and the connecting rod structure 111 are both configured for fixed installation on the vehicle 20.

[0030] The connecting rod structure 111 includes a wiper arm and a wiper arm. Specifically, the wiper arm, the wiper arm, and the wiper blade 112 are hingedly connected in sequence. One end of a spring 113 is mechanically connected to the wiper arm, and the other end of the spring 113 is mechanically connected to an electric worm actuator 114. The electric worm actuator 114 controls the expansion and contraction of the spring 113 to control the pressure applied by the wiper blade 112 to the windshield 201. The spring 113 has a simple and reliable structure, is low-cost, and is easy to maintain, reducing repair costs. The expansion and contraction of the spring 113 can be adjusted in real time through mechanical or electronic means, thereby dynamically changing the pressure of the wiper blade 112 on the windshield 201. This flexibility allows for optimized cleaning performance based on actual needs while reducing wear on the wiper blade 112.

[0031] The connection between the electric worm actuator structure and the spring 113 can be controlled according to the actual application situation. The spring 113 and the electric worm actuator 114 can be mechanically connected by screws, or by a mortise and tenon structure. The spring 113 and the electric worm actuator 114 can be mechanically connected. No limitation is made here. Furthermore, a movable connection can be set between the spring 113 and the electric worm actuator 114 so that the spring 113 and the electric worm actuator 114 can be rotated within a certain angle range while being connected to the electric worm actuator 114 to facilitate adjustment of the position of the spring 113. By way of example, there is a 30° movable angle between the spring 113 and the electric worm actuator 114.

[0032] Furthermore, the motor worm gear execution structure can be arranged inside the wiper arm to ensure the aesthetics of the wiper 10.

[0033] The control module 13 is respectively connected to the electric worm actuator 114, the rain sensor 12 and the vehicle control system of the vehicle, and is used to determine the pressure value that the wiper blade 112 needs to apply to the windshield 201 according to the rain signal when it is determined that the wiper 10 is in a swinging state, and control the electric worm actuator 114 according to the pressure value to adjust the pressure applied by the wiper blade 112 to the windshield 201.

[0034] Specifically, a transmission mechanism and a motor can be disposed within the worm actuator. The control module 13, based on the received rainfall signal, drives the motor, causing the transmission mechanism to convert the motor's rotational motion into linear motion or angular change, thereby changing the expansion and contraction of the spring 113 and thereby precisely controlling the pressure applied by the wiper blade 112 to the windshield 201. Exemplarily, the transmission mechanism is a screw-nut mechanism, where the rotation of the nut drives the screw to move linearly, thereby changing the expansion and contraction of the spring 113.

[0035] Specifically, the electric worm actuator 114 includes a worm, a driving member and a motor that are sequentially connected. Specifically, the driving member is a nut, the worm is a screw of a screw-nut mechanism, and the worm is a driven member. The worm is mechanically connected to the spring 113. The motor controls the extension and retraction of the worm through the nut according to the signal of the control module 13. Specifically, the motor controls the worm to move toward the direction of the spring 113, which can reduce the stretching of the spring 113, reduce the elastic force, and reduce the pressure applied by the wiper blade 112 to the windshield 201; the motor controls the worm to move away from the spring 113, which can increase the stretching length of the spring 113, increase the elastic force, and increase the pressure applied by the wiper blade 112 to the windshield 201.

[0036] The control module 13 obtains the status of the wiper 10 through the vehicle control system 21. When it is determined that the wiper 10 is in a swinging state, the control module 13 obtains the rain signal of the rain sensor 12, analyzes and processes the rain signal, and determines the cleanliness of the wiper 10 based on the rain signal. Specifically, the cleanliness is determined by whether the wiper 10 cleans the liquid on the windshield 201. If the wiper 10 cleans the liquid on the windshield 201 and the rain sensor 12 does not detect the liquid, the control module 13 determines that the wiper 10 is clean. If the wiper 10 does not clean the liquid on the windshield 201 and the rain sensor 12 detects the liquid, the control module 13 determines that the wiper 10 is unclean.

[0037] When the wiper 10 is judged to have qualified cleaning performance, the electric worm actuator 114 is controlled to reduce the pressure applied by the wiper blade 112 to the windshield 201 by a preset ratio. When the wiper 10 is judged to have unqualified cleaning performance, the electric worm actuator 114 is controlled to increase the pressure applied by the wiper blade 112 to the windshield 201 by a preset ratio. The pressure reduction ratio and the pressure increase ratio can be set according to actual application conditions. It is understood that the pressure reduction ratio and the pressure increase ratio can be the same, or they can be different. Furthermore, the number of times the pressure applied by the wiper blade 112 to the windshield 201 is continuously increased or continuously reduced can be set according to actual application conditions. Exemplarily, the number of times the pressure applied by the wiper blade 112 to the windshield 201 is continuously increased or continuously reduced is not greater than four times.

[0038] Based on signals from the control module 13, the motor controls the extension and retraction of the worm gear through the transmission mechanism, thereby controlling the pressure applied by the wiper blade 112 to the windshield 201, proportionally increasing or decreasing the pressure between the wiper blade 112 and the windshield 201. For example, the spring pressure between the upper and lower arms of a conventional wiper is approximately 1.5 kg, and the pressure exerted by the lower arm on the wiper blade is 0.15 kN / cm. When the control module 13 determines, based on the rain signal, that the wiper 10 has failed cleaning, it controls the motor via a duty cycle signal to move the worm gear away from the spring 113, increasing the pressure applied by the wiper blade 112 on the windshield 201. The pressure increase is based on the initial pressure, with each increase adding 5% to the initial pressure. For example, if the initial pressure is 1.5 kg, the increased pressure will be 1.5 × (1 + 5%) kg. This increase can occur no more than four times, resulting in a maximum increase of 20%. Ensure that the wiper blade 112 can fit tightly against the windshield 201, effectively scrape off rainwater, improve the cleaning effect, provide the driver with a clear field of vision, help the driver to clearly observe the road conditions, especially in severe weather conditions such as blizzards and heavy rain, thereby improving driving safety.

[0039] When the control module 13 determines that the wiper 10 has passed the cleaning test based on the rain signal, it controls the motor via the duty cycle signal to move the worm gear toward the spring 113, reducing the pressure applied by the wiper blade 112 on the windshield 201. The pressure reduction is based on the initial pressure, with each reduction being 5% of the initial pressure. For example, if the initial pressure is 1.5 kg, the pressure reduction is 1.5 × (1-5%) kg. This reduction cannot occur more than four times, resulting in a maximum pressure reduction of 20%. In other words, the adjustable pressure range is ±20% of the initial pressure. Dynamic adjustment of the wiper blade 112 pressure by the control module 13 ensures that the wiper blade 112 can clean the windshield 201 while minimizing the pressure applied by the wiper blade 112 to prevent unnecessary wear on the windshield 201.

[0040] Furthermore, the adjustment of the spring 113's expansion and contraction ensures that the wiper blade 112 always adheres to the surface of the windshield 201 with appropriate pressure, adapting to windshields 201 of varying shapes and curvatures. Precisely adjusting the pressure prevents excessive wear of the wiper blade 112 due to excessive pressure, while also reducing localized wear caused by uneven pressure. This significantly extends the life of the wiper blade 112 and reduces user costs. The entire process is fully automated, requiring no manual operation by the driver, enhancing driving safety and comfort.

[0041] Further, Figure 3Another structural schematic diagram of the wiper body 11 of an embodiment of the present application is shown. The wiper body 11 also includes a pressure sensor 115. The pressure sensor 115 is fixedly installed between the spring 113 and the connecting rod structure 111 and is in communication with the control module 13. The input end of the pressure sensor 115 is connected to the spring 113 and the connecting rod structure 111, and the output end of the pressure sensor 115 is in communication with the control module 13. The pressure sensor 115 is used to monitor the actual pressure applied by the spring 113 to the wiper arm of the connecting rod structure 111 in real time and feed the pressure data back to the control module 13. The control module 13 is used to adjust the output of the electric worm actuator 114 based on the pressure signal from the pressure sensor 115. By providing the pressure sensor 115 to monitor the actual pressure, the control module 13 can further adjust the electric worm actuator 114 based on the pressure data to ensure the accuracy of the pressure.

[0042] In one embodiment, based on the above embodiment, the control module 13 is communicatively connected to the vehicle control system 21 of the vehicle 20, and is used to obtain the status of the vehicle 20 through the vehicle control system 21. When it is determined that the vehicle 20 is in a parked state, the wiper blade 112 is driven away from the windshield 201 to a non-contact position by controlling the electric worm actuator 114.

[0043] Specifically, when the control module 13 determines that the vehicle 20 is parked, it controls the worm gear to move toward the spring 113, completely releasing the pressure of the spring 113. At this point, the worm gear is then controlled to move toward the spring 113, causing the wiper blade 112 to separate from the windshield 201 and maintain a non-contact state with the windshield 201. This prevents the wiper blade 112 from freezing to the windshield 201 in cold, rainy, or snowy weather. This extends the service life of the wiper blade 112, protects the windshield 201 from damage, and improves driving safety.

[0044] Furthermore, the electric worm actuator 114 also includes: a limiter set on the worm, the limiter is used to limit the telescopic movement of the worm. It is understandable that the limiter can be a mechanical structure, or an electronic sensing structure, and the telescopic movement of the worm is limited by the limiter. Exemplarily, the limiter is a mechanical limit block, and the position of the limiter can be set according to the actual application situation. When the worm moves to a certain position, the limiter will prevent the movement of the worm. It is understandable that the limiter can be set at one end of the worm, or at both ends of the worm. Furthermore, a pressure sensor 115 can also be used. When the control module 13 determines that the pressure reaches the set upper limit value based on the pressure signal, the control module 13 stops controlling the motor to prevent the wiper blade 112 from damaging the windshield 201, thereby protecting important components of the car and reducing maintenance and replacement costs.

[0045] Furthermore, the electric worm actuator 114 also includes a Hall sensor, which is in communication with the control module 13. The control module 13 is also used to obtain the telescopic movement of the worm based on the signal from the Hall sensor. Specifically, a signal disk is provided on the worm, which cuts the magnetic lines of force by performing a telescopic movement, generating an induced electromotive force; the Hall sensor detects changes in the magnetic field, generates a corresponding electrical signal, and transmits it to the control module 13; the control module 13 processes and analyzes the received signal to obtain information about the telescopic movement of the worm; based on the analysis results, the control module 13 generates a control instruction to adjust the motion state of the worm. The Hall sensor can monitor whether the worm completes the telescopic movement as expected. Through the feedback signal provided by the Hall sensor, the control module 13 can accurately calculate the telescopic distance and speed of the worm, thereby achieving closed-loop control, avoiding pressure regulation errors caused by mechanical failures or external interference, and significantly improving the stability and safety of the entire system.

[0046] Furthermore, the electric worm actuator 114 includes a gear reduction mechanism. This mechanism converts the high speed of the motor into a low speed through gear transmission, while also amplifying the motor's input torque into a higher output torque. This ensures that the worm can effectively drive the spring 113. During the process of adjusting the pressure of the wiper blade 112, the gear reduction mechanism ensures smooth and precise retraction and extension of the worm, avoiding jitter or instability caused by direct motor drive.

[0047] The embodiment of the present application also provides a control method of the wiper 10. Figure 4 A flow chart of a control method for the wiper 10 according to an embodiment of the present application is shown. The control method is applied to the wiper 10 mentioned in the above embodiment. The control method is executed by the control module 13 in the wiper 10 and includes: Step S101 : obtaining the working status of the wiper 10 through the vehicle control system 21 .

[0048] The control module 13 is in communication with the vehicle control system 21 and obtains the working status of the wiper 10 through the vehicle control system 21 .

[0049] Step S102 : when it is determined that the wiper 10 is in the swinging state, obtaining a rainfall signal from the rain sensor 12 .

[0050] The working state of the wiper 10 includes a swing state and a non-swing state. When the control module 13 determines that the wiper 10 is in the swing state, it obtains a rain signal from the rain sensor 12. Exemplarily, the rain sensor 12 is an optical sensor.

[0051] Step S103 : controlling the electric worm actuator 114 according to the rain signal to adjust the pressure applied by the wiper blade 112 to the windshield 201 .

[0052] The cleanliness of the wiper 10 is determined based on the rain signal. Furthermore, the rain signal can be filtered and denoised, and then the cleanliness of the wiper 10 is determined based on the rain signal. Specifically, the cleanliness of the wiper 10 is divided into qualified cleanliness and unqualified cleanliness.

[0053] When the wiper 10 is judged to be qualified for cleaning, the electric worm actuator 114 is controlled to reduce the pressure applied by the wiper blade 112 to the windshield 201 by 5% to avoid unnecessary wear of the windshield 201 by the wiper blade 112. If the control module 13 determines based on the rain signal that the wiper blades 10 have failed to clean properly, it controls the electric worm actuator 114 to increase the pressure applied by the wiper blades 112 to the windshield 201 by 5%. This increased pressure allows the wiper blades 112 to more closely adhere to the surface of the windshield 201, effectively removing more rainwater and impurities. The number of consecutive decreases or increases in pressure cannot exceed four, and the adjustable range of pressure is plus or minus 20% of the base pressure.

[0054] In this embodiment, by dynamically adjusting the pressure of the wiper blade 112 based on the rainfall signal, optimal cleaning performance is achieved while reducing excessive wear on the wiper blade 112, thereby extending its service life. This ensures a clear view of the windshield 201 at all times, thereby improving driving safety. Furthermore, through intelligent pressure regulation, the user no longer needs to manually adjust the operating state of the wiper 10; the system automatically optimizes the cleaning effect based on actual conditions. This not only improves driving comfort but also reduces the possibility of driver distraction.

[0055] The present application also provides a vehicle device, Figure 5 Another application diagram of the wiper according to the embodiment of the present application is shown. For example, the vehicle device includes the wiper 10. The vehicle device can be any type of vehicle.

[0056] It is understandable that before the vehicle 20 leaves the factory, the vehicle control system 21 can be used as the control module 13 to execute relevant computer programs to implement the above-mentioned control method of the wiper 10. The wiper 10 of the vehicle 20 can also be replaced after leaving the factory, and the control module 13 of the wiper 10 can be set inside the vehicle 20.

[0057] The rain sensor 12 can be a rain sensor that the vehicle 20 itself is equipped with. The rain sensor 12 can also be an independent rain sensor that is additionally provided for the wiper 10 function. For example, Figure 5As shown, the control module 13 of the wiper 10 is not a separate control unit, but is instead managed by the vehicle control system 21. The rain sensor 12 used by the wiper 10 is already present in the vehicle 20. By integrating the control functions of the wiper 10 into the overall control system of the vehicle 20, precise control of the wiper 10 can be achieved through software logic, reducing the need for independent hardware modules. This integrated design not only reduces manufacturing costs but also improves system reliability and ease of maintenance.

[0058] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely schematic. For example, the flowcharts and structure diagrams in the accompanying drawings show the possible architectures, functions and operations of the devices, methods and computer program products according to the multiple embodiments of the present application. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, program segment or a part of the code contains one or more executable instructions for implementing the specified logical functions. It should also be noted that in an alternative implementation, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the structure diagram and / or flowchart, and the combination of boxes in the structure diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or can be implemented using a combination of dedicated hardware and computer instructions.

[0059] In addition, the functional modules or units in the various embodiments of the present 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.

[0060] If the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for enabling a computer device (which can be a smart phone, personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application.

[0061] The above is only a specific implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed in this application, which should be covered by the scope of protection of the present application.

Claims

1. A wiper blade, characterized in that: include: A wiper body comprising a connecting rod structure, a wiper blade, and a mechanically connected spring and an electric worm actuator; wherein the wiper blade is located at the driven end of the connecting rod structure, the spring is mechanically connected to the connecting rod structure, and the fixed end of the electric worm actuator and the fixed end of the connecting rod structure are both used for fixed installation on the vehicle; Rainfall sensor, used to detect rainfall in real time and generate rainfall signal; A control module is respectively connected to the electric worm actuator, the rain sensor and the vehicle control system of the vehicle, and is used to control the electric worm actuator according to the rain signal when it is determined that the wiper is in a swinging state, so as to adjust the pressure applied by the wiper blade to the windshield.

2. The wiper blade according to claim 1, characterized in that When it is determined that the wiper is in the swinging state, controlling the electric worm actuator according to the rain signal to adjust the pressure applied by the wiper blade to the windshield includes: When it is determined that the wiper is in a swinging state, determining the cleanliness of the wiper according to the rain signal; When it is determined that the wiper blade is unqualified in cleaning, the electric worm actuator is controlled to increase the pressure applied by the wiper blade to the windshield according to a preset ratio; When it is determined that the wiper is cleaned to a qualified standard, the pressure applied by the wiper blade to the windshield is reduced according to a preset ratio by controlling the electric worm actuator.

3. The wiper blade according to claim 2, characterized in that: The number of times the pressure applied by the wiper blade to the windshield is continuously increased or continuously decreased does not exceed a preset number.

4. The wiper blade according to claim 1, characterized in that The electric worm actuator includes a worm, an active member and a motor that are sequentially connected in transmission. The worm is mechanically connected to the spring. The motor is used to control the telescopic action of the worm through the active member according to the signal of the control module.

5. The wiper blade according to claim 4, characterized in that: The electric worm actuator further includes a Hall sensor, which is communicatively connected to the control module. The control module is further configured to obtain the telescopic movement of the worm according to a signal from the Hall sensor.

6. The wiper blade according to claim 1, characterized in that The wiper body also includes a pressure sensor, which is fixedly installed between the spring and the connecting rod structure and is communicatively connected to the control module. The control module is also used to adjust the output of the electric worm actuator according to the pressure signal of the pressure sensor.

7. The wiper blade according to claim 1, characterized in that The control module is further configured to obtain the state of the vehicle through the vehicle control system, and when it is determined that the vehicle is in a parked state, control the electric worm actuator to drive the wiper blade away from the windshield to a non-contact position.

8. A method for controlling a wiper, characterized in that: The wiper blade according to any one of claims 1 to 7 comprises: obtaining the working status of the wiper by the vehicle control system; When it is determined that the wiper is in the swinging state, obtaining a rain signal from the rain sensor; The electric worm actuator is controlled according to the rain signal to adjust the pressure applied by the wiper blade to the windshield.

9. A vehicle device, characterized in that: The vehicle equipment includes: a wiper according to any one of claims 1 to 7.

10. The vehicle equipment according to claim 9, characterized in that The control module of the wiper is a vehicle control system.

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