Vehicle windshield cleaning method and system, vehicle and equipment

Abstract

The invention discloses a vehicle windshield cleaning method and system, a vehicle and equipment. The cleaning method for the windshield of the vehicle comprises the steps that when a detection condition is met, a windscreen wiper is controlled to operate; the operation state of the windscreen wiper is obtained; according to the running state of the windscreen wiper, whether a shielding object exists on a windscreen or not is judged, and the shielding object comprises at least one of ice, frost and accumulated snow; and if yes, the vehicle is controlled to run in a defrosting mode. By adopting the embodiment of the invention, whether ice, frost or accumulated snow exists or not can be detected in advance according to the running state of the windscreen wiper, then defrosting, deicing or snow removing can be carried out in advance before a user gets on the vehicle, the method has the advantage of high detection precision, whether ice, frost or accumulated snow exists on the windscreen or not can be accurately judged, misjudgment is reduced, and the user experience is improved. Therefore, the windshield can be accurately and rapidly cleaned when necessary, and the use experience of the vehicle is effectively improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a vehicle windshield cleaning method, system, vehicle and equipment. Background Art

[0002] In late autumn or early spring, especially in the northern region, the weather is cold and the atmospheric humidity is high. The outer surface of the car's windshield is prone to frost and ice. In winter, after snowing, the outer surface of the car's windshield is prone to snow accumulation. It is necessary to remove the frost, ice and snow on the outer surface of the windshield before using the car. At present, you can use a flat hard object to manually scrape off the frost, ice and snow on the outer surface of the windshield; you can also turn on the vehicle's air conditioning defrost mode after getting in the car, and use the hot air blown out by the air conditioner to heat the windshield. When the temperature of the windshield rises, the ice, frost and snow on its surface will melt. However, the user needs to come to the vehicle or get in the car to perform the above operations. If de-icing, defrosting or snow removal is not timely, it will take a certain amount of time to process.

[0003] In addition, some methods obtain the image of the front windshield through the driving recorder and then process the image to determine whether the front windshield is frosted. After determining that there is frost, the user's mobile phone client is used to remotely control the vehicle's air conditioning system to defrost the front windshield according to the set defrosting program. There are the following technical problems:

[0004] It is necessary to establish a communication connection between the client and the vehicle, which depends on the network signal. In some scenarios where the network signal is poor or disconnected, the above method cannot be implemented. In addition, the acquisition of the windshield image requires a high light intensity at the location of the vehicle. When the light is dark, the acquired windshield image is easily distorted, which in turn affects the ability to recognize and judge the image and reduces the accuracy of defrosting and deicing. Summary of the invention

[0005] Based on this, it is necessary to provide a vehicle windshield cleaning method, system, vehicle and equipment to address the above technical problems. The method can detect whether there is ice, frost or snow in advance through the operating status of the wiper, and then defrost, remove ice or snow in advance before the user gets on the vehicle. The method has the advantage of high detection accuracy, and can accurately determine whether there is ice, frost or snow on the windshield, reducing misjudgment, so that the windshield can be cleaned accurately and quickly when necessary, effectively improving the vehicle's user experience.

[0006] In a first aspect, a method for cleaning a windshield of a vehicle is provided, comprising:

[0007] When the detection conditions are met, the wiper is controlled to operate;

[0008] Obtaining the operating status of the wiper;

[0009] According to the operating state of the wiper, determining whether there is an obstruction on the windshield, wherein the obstruction includes at least one of ice, frost and snow;

[0010] If the obstruction exists, the vehicle is controlled to run in a defrost mode.

[0011] In some examples, this also includes:

[0012] receiving a key unlocking signal;

[0013] Determine whether the unlock and defrost detection is turned on;

[0014] If yes, it is determined that the detection condition is met.

[0015] In some examples, judging whether there is an obstruction on the windshield according to the operating state of the wiper includes:

[0016] Obtaining the relative motion between the wiper blade and the wiper rocker arm of the wiper;

[0017] According to the relative movement between the wiper blade and the wiper rocker arm of the wiper, it is determined whether there is ice, frost or snow on the windshield.

[0018] In some examples, judging whether ice, frost or snow is present on the windshield according to the relative movement between the wiper blade and the wiper rocker arm of the wiper includes:

[0019] Obtaining the obstruction pressure when the wiper is in operation according to the relative movement between the wiper blade and the wiper rocker arm of the wiper;

[0020] Based on the blocking pressure, it is determined whether there is ice, frost or snow on the windshield.

[0021] In some examples, determining whether ice, frost, or snow is present on the windshield based on the obstruction pressure includes:

[0022] Obtaining a pressure difference between the obstruction pressure and a reference pressure, wherein the reference pressure is determined according to a relative movement between the wiper blade and the wiper rocker arm when there is no obstruction on the windshield;

[0023] Determining whether the pressure difference is greater than a preset threshold;

[0024] If so, it is determined that there is ice, frost or snow on the windshield.

[0025] In some examples, the obstruction pressure is detected by a pressure sensor.

[0026] In some examples, if the obstruction exists, controlling the vehicle to operate in a defrost mode includes:

[0027] Control the air outlet of the air conditioning system to discharge hot air toward the front windshield at the maximum air volume;

[0028] After the first predetermined time, the wiper is controlled to operate for a second predetermined time to complete the operation of the defrost mode.

[0029] In a second aspect, a vehicle windshield cleaning system is provided, comprising:

[0030] An operation control module, used for controlling the operation of the wiper when the detection conditions are met;

[0031] An acquisition module, used for acquiring the operating status of the wiper;

[0032] a judgment module, used for judging whether there is an obstruction on the windshield according to the operation state of the wiper, wherein the obstruction includes at least one of ice, frost and snow;

[0033] The cleaning control module is used to control the vehicle to run a defrost mode when the obstruction exists on the windshield.

[0034] In a third aspect, a vehicle is provided, comprising: a vehicle windshield cleaning system according to the second aspect.

[0035] In a fourth aspect, a computer device is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the vehicle windshield cleaning method according to the first aspect is implemented. With the embodiment of the present application, it is possible to determine in advance whether there is ice, frost or snow on the windshield by controlling the operation of the wiper, and when it is determined that there is ice, frost or snow, the vehicle is controlled to operate in a defrosting mode. In this way, compared with the method in which the user comes to the side of the vehicle and sees ice, frost or snow, and starts the vehicle to wait for defrosting, it is possible to detect in advance whether there is ice, frost or snow by the operation state of the wiper, and then, defrost, remove ice or snow in advance before the user gets on the vehicle, thereby improving the user's vehicle experience. In addition, compared with the method in which the camera is used to detect whether there is ice, frost or snow, it is not affected by light, has the advantage of high detection accuracy, can accurately determine whether there is ice, frost or snow on the windshield, reduce misjudgment, and thus can accurately and quickly clean the windshield when necessary, effectively improving the vehicle's user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0037] Figure 1 A flow chart of a vehicle windshield cleaning method provided in an embodiment of the present application;

[0038] Figure 2 A schematic diagram of the application of the vehicle windshield cleaning method provided in an embodiment of the present application;

[0039] Figure 3 A structural block diagram of a vehicle windshield cleaning system provided in an embodiment of the present application;

[0040] Figure 4 A structural block diagram of a computer device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0041] The present application is further described in detail below in conjunction with the embodiments and drawings. It is to be understood that the specific embodiments described herein are only used to explain the relevant application, rather than to limit the application. It is also necessary to explain that, for ease of description, only the parts related to the application are shown in the drawings.

[0042] It should be noted that, in the absence of conflict, the embodiments of the present application, that is, the features of the embodiments, can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0043] The following is a detailed description of a vehicle windshield cleaning method, system, vehicle and equipment according to an embodiment of the present application in conjunction with the accompanying drawings.

[0044] Figure 1 FIG. 1 is a flow chart of a vehicle windshield cleaning method according to an embodiment of the present application. Figure 1 As shown, a vehicle windshield cleaning method according to an embodiment of the present application includes the following steps:

[0045] S101: When the detection conditions are met, the wiper is controlled to operate.

[0046] In one embodiment of the present application, whether the detection condition is met can be achieved in the following manner:

[0047] Receiving a key unlock signal; determining whether the unlock defrost detection is turned on; if the unlock defrost detection is turned on, determining that the detection condition is met.

[0048] For example: if you want to perform a defrost test every time you unlock the vehicle with a key, you can set the vehicle to determine whether to turn on the unlock defrost test function. In this way, if you want to perform a defrost test every time you unlock the vehicle with a key, you can turn on the unlock defrost test function. As a result, when the user unlocks the vehicle with a key, the vehicle will automatically perform a defrost test. The initial operation of the defrost test is to control the operation of the wipers.

[0049] For the north, it is usually late autumn or early winter when the weather is cold and the atmospheric humidity is high. Therefore, frost or ice easily forms on the car windows, especially when getting on the car in the morning. The car windows such as the front windshield are easily frosted or iced, thereby affecting the sight. Alternatively, during the winter snowing period or when the snow stops, the car windows are easily covered with snow, thereby affecting the sight. Therefore, in the embodiment of the present application, before the user gets on the car, when the vehicle is unlocked by the key, such as remotely unlocking the vehicle, a detection of whether frost, ice or snow exists can be performed. When the detection starts, the wiper is first controlled to operate.

[0050] S102: Obtaining the operating status of the wiper.

[0051] The operating state of the wiper includes the relative movement between the wiper blade and the wiper rocker arm. Figure 2 FIG. 1 is a schematic diagram of a wiper system according to an embodiment of the present application, through which the operating state of the wiper can be obtained. Figure 2 As shown, the wiper system includes a wiper, a wiper blade state detection device 5 and a wiper state processing device 6, wherein the wiper includes a wiper blade 1, a wiper rocker arm 2 and a wiper power device 4.

[0052] The wiper blade 1 is closely attached to the outer surface of the front windshield 7, and the wiper blade state detection device 5 is installed between the wiper blade 1 and the wiper rocker arm 2. The wiper blade 1 and the wiper rocker arm 2 are flexibly connected through the wiper blade state detection device 5 and can move relative to each other. One end of the wiper rocker arm 2 is connected to the wiper blade state detection device 5, and the other end is connected to the wiper power device 4. When the wiper system is working, the wiper power device 4 provides power output to drive the wiper rocker arm 2 to move, the wiper rocker arm 2 drives the wiper blade state detection device 5, and the wiper blade state detection device 5 drives the wiper blade 1, so that the wiper blade 1 moves closely to the outer surface of the front windshield 7, and the wiper blade 1 scrapes off the rain on the outer surface of the front windshield 7 during the movement. When the wiper blade 1 moves against the front windshield 7, since the wiper blade 1 and the wiper rocker arm 2 can move relative to each other, the wiper blade state detection device 5 can detect the relative movement between the two, so that the wiper state processing device 6 can determine the operating state of the wiper. That is: determine the changes in the relative motion of the two.

[0053] S103: judging whether there is an obstruction on the windshield according to the operating state of the wiper, wherein the obstruction includes at least one of ice, frost and snow. In a specific example, the windshield generally refers to Figure 2 The front windshield 7 of the vehicle is shown.

[0054] In one embodiment of the present application, judging whether there is an obstruction on the windshield according to the operating state of the wiper, includes: obtaining the relative movement between the wiper blade and the wiper rocker arm of the wiper; judging whether there is ice, frost or snow on the windshield according to the relative movement between the wiper blade and the wiper rocker arm of the wiper.

[0055] Furthermore, judging whether there is ice, frost or snow on the windshield based on the relative movement between the wiper blade and the wiper rocker arm of the wiper, includes: obtaining the obstruction pressure when the wiper is running based on the relative movement between the wiper blade and the wiper rocker arm of the wiper; and determining whether there is ice, frost or snow on the windshield based on the obstruction pressure.

[0056] In the above example, whether the windshield has ice, frost or snow is determined based on the obstruction pressure, specifically including: obtaining the pressure difference between the obstruction pressure and a reference pressure, wherein the reference pressure is determined based on the relative movement between the wiper blade and the wiper arm when there is no obstruction on the windshield; judging whether the pressure difference is greater than a preset threshold; if so, determining that the windshield has ice, frost or snow.

[0057] The obstruction pressure can be detected by a pressure sensor.

[0058] Specifically, combined Figure 2 As shown, the wiper blade state detection device 5 is equipped with a pressure detection mechanism such as a pressure sensor. The pressure detection mechanism can convert the relative movement of the wiper blade 1 and the wiper rocker arm 2 into pressure when the wiper blade 1 and the wiper rocker arm 2 move relative to each other. The converted pressure is transmitted to the wiper state processing device 6, and the final obstruction pressure is determined after processing by the wiper state processing device 6.

[0059] Under normal circumstances, when there is no frost, ice or snow on the outer surface of the front windshield 7, when the wiper blade 1 moves closely against the outer surface of the front windshield 7, when the wiper blade 1 and the wiper rocker arm 2 move relative to each other, the pressure converted by the pressure detection mechanism will be within a fixed pressure range. In this example, this fixed pressure range is referred to as P1-P2. When there is frost, ice or snow on the outer surface of the front windshield 7, the state of the contact position between the wiper blade 1 and the outer surface of the front windshield 7 changes, and when the wiper blade 1 moves back and forth closely against the outer surface of the front windshield 7 , the relative movement between the wiper blade 1 and the wiper rocker arm 2 will change from the relative movement under normal conditions, so that the pressure range after detection and conversion by the pressure detection mechanism changes. In this example, the pressure range at this time is called P3-P4; the wiper state processing device 6 compares the pressure at this time with P1-P2, and then determines whether the outer surface of the front windshield 7 is frosted, iced or snowed; for example: when the minimum pressure difference between the pressure at this time and P1-P2 is greater than a certain range, it is considered that the outer surface of the front windshield 7 is frosted, iced or snowed. The wiper state processing device 6 transmits the detected frosted, iced or snowed state of the outer surface of the front windshield 7 to the vehicle control system.

[0060] S104: If the obstruction exists, control the vehicle to operate in a defrost mode.

[0061] In a specific example, if the obstruction exists, the vehicle is controlled to operate in a defrost mode, including: controlling the air outlet of the air conditioning system toward the front windshield to discharge hot air at the maximum air volume; after the first predetermined time, controlling the wiper to operate for a second predetermined time to complete the operation of the defrost mode. For example: after the vehicle control system receives a notification that there is frost, ice, or snow on the outer surface of the front windshield, it controls the air outlet of the air conditioning system (air outlet toward the front windshield) to discharge hot air to heat the front windshield, with the air outlet temperature being the highest and the air volume being the largest. After the air outlet time of M minutes (i.e., the first predetermined time), the frost, ice, and snow on the outer surface of the front windshield melt into water, and then the control system controls the wiper to operate for N minutes (i.e., the first predetermined time) to scrape and remove the water stains on the outer surface of the front windshield.

[0062] Among them, M minutes and N minutes can be preset, for example, M is 3-10 minutes, and N is 0.5-2 minutes.

[0063] According to the vehicle windshield cleaning method of the embodiment of the present application, it is possible to determine in advance whether there is ice, frost or snow on the windshield by controlling the operation of the wiper, and when it is determined that there is ice, frost or snow, the vehicle is controlled to run the defrosting mode. In this way, compared with the method in which the user comes to the side of the vehicle and checks the ice, frost or snow, and starts the vehicle to wait for defrosting, it is possible to detect in advance whether there is ice, frost or snow through the operation state of the wiper, and then, defrost, remove ice or snow in advance before the user gets on the vehicle, thereby improving the user's car experience. In addition, compared with the method of detecting whether there is ice, frost or snow through a camera, it will not be affected by light and has the advantage of high detection accuracy. It can accurately determine whether there is ice, frost or snow on the windshield, reduce misjudgment, and thus accurately and quickly clean the windshield when necessary, effectively improving the vehicle's user experience.

[0064] Figure 3 FIG. 1 is a structural block diagram of a vehicle windshield cleaning system according to an embodiment of the present application. Figure 3 As shown, a vehicle windshield cleaning system according to an embodiment of the present application includes: an operation control module 310, an acquisition module 320, a judgment module 330 and a cleaning control module 340, wherein:

[0065] An operation control module 310 is used to control the operation of the wiper when the detection condition is met;

[0066] An acquisition module 320 is used to obtain the operating status of the wiper;

[0067] A judging module 330, configured to judge whether there is an obstruction on the windshield according to the operating state of the wiper, wherein the obstruction includes at least one of ice, frost and snow;

[0068] The cleaning control module 340 is used to control the vehicle to operate in a defrost mode when the obstruction exists on the windshield.

[0069] According to the windshield cleaning system of the vehicle of the embodiment of the present application, it is possible to determine in advance whether there is ice, frost or snow on the windshield by controlling the operation of the wipers, and when it is determined that there is ice, frost or snow, the vehicle is controlled to operate in defrosting mode. In this way, compared with the method in which the user comes to the side of the vehicle and checks the ice, frost or snow, and starts the vehicle to wait for defrosting, it is possible to detect in advance whether there is ice, frost or snow through the operation state of the wipers, and then, defrost, remove ice or snow in advance before the user gets on the vehicle, thereby improving the user's car experience. In addition, compared with the method of detecting whether there is ice, frost or snow through a camera, it will not be affected by light, has the advantage of high detection accuracy, can accurately determine whether there is ice, frost or snow on the windshield, reduce misjudgment, and thus can accurately and quickly clean the windshield when necessary, effectively improving the vehicle's user experience.

[0070] The specific definition of the vehicle windshield cleaning system can be found in the definition of the vehicle windshield cleaning method above, which will not be repeated here. The various modules of the above-mentioned vehicle windshield cleaning system can be implemented in whole or in part by software, hardware and a combination thereof. The above-mentioned various modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above-mentioned various modules.

[0071] In an embodiment of the present application, a vehicle is provided, comprising: a windshield cleaning system for a vehicle according to any one of the above embodiments. The vehicle can determine in advance whether there is ice, frost or snow on the windshield by controlling the operation of the wiper, and when it is determined that there is ice, frost or snow, the vehicle is controlled to operate in a defrosting mode. In this way, compared with the method in which the user comes to the side of the vehicle and checks the ice, frost or snow, and starts the vehicle to wait for defrosting, the existence of ice, frost or snow can be detected in advance through the operation state of the wiper, and then, defrosting, de-icing or de-snowing can be performed in advance before the user gets on the vehicle, thereby improving the user's vehicle experience. In addition, compared with the method of detecting whether there is ice, frost or snow through a camera, it will not be affected by light, has the advantage of high detection accuracy, can accurately determine whether there is ice, frost or snow on the windshield, reduce misjudgment, and thus can accurately and quickly clean the windshield when necessary, effectively improving the vehicle's user experience.

[0072] In addition, other structures and functions of the vehicle according to the embodiment of the present application are known to ordinary technicians in the field and will not be elaborated here.

[0073] Reference below Figure 4 , Figure 4A schematic diagram of the structure of a computer device suitable for implementing the embodiments of the present application is shown.

[0074] like Figure 4 As shown, the computer system includes a central processing unit (CPU) 1001, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 1002 or the program loaded from the storage part 1008 into the random access memory (RAM) 1003. In the RAM 1003, various programs and data required for the operation instructions of the system are also stored. The CPU 1001, the ROM 1002, and the RAM 1003 are connected to each other through a bus 1004. An input / output (I / O) interface 1005 is also connected to the bus 1004.

[0075] The following components are connected to the I / O interface 1005: an input section 1006 including a keyboard, a mouse, etc.; an output section 1007 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 1008 including a hard disk, etc.; and a communication section 1009 including a network interface card such as a LAN card, a modem, etc. The communication section 1009 performs communication processing via a network such as the Internet. A drive 1010 is also connected to the I / O interface 1005 as needed. A removable medium 1011, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 1010 as needed, so that a computer program read therefrom is installed into the storage section 1008 as needed.

[0076] In particular, according to an embodiment of the present application, the above reference flow chart Figure 1 The described process can be implemented as a computer-readable storage medium. For example, an embodiment of the present application includes a computer-readable storage medium, which includes a computer program, and the computer program contains program code for executing the method shown in the flowchart, such as executing: when the detection condition is met, controlling the wiper to operate; obtaining the operating state of the wiper; judging whether there is an obstruction on the windshield according to the operating state of the wiper, wherein the obstruction includes at least one of ice, frost and snow; if the obstruction exists, controlling the vehicle to operate in a defrost mode.

[0077] In particular, according to an embodiment of the present application, the above reference flow chart Figure 1The described process can be implemented as a computer software program. For example, an embodiment of the present application includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program contains program code for executing the method shown in the flowchart, such as executing: when the detection condition is met, controlling the wiper to operate; obtaining the operating state of the wiper; judging whether there is an obstruction on the windshield according to the operating state of the wiper, wherein the obstruction includes at least one of ice, frost and snow; if the obstruction exists, controlling the vehicle to operate in a defrost mode. In such an embodiment, the computer program contains program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through the communication part 1009, and / or installed from a removable medium 1011. When the computer program is executed by the central processing unit (CPU) 1001, the above functions defined in the system of the present application are executed.

[0078] It should be noted that the computer-readable medium shown in the present application may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, device or device. In the present application, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries a computer-readable program code. This propagated data signal may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium such as a computer-readable storage medium that can send, propagate or transmit a program for use by or in conjunction with an instruction execution system, device or device. The program code contained on the computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, optical cable, RF, etc., or any suitable combination of the above.

[0079] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, functions and operating instructions of the system, method and computer program product according to various embodiments of the present application. In this regard, each box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the aforementioned module, a program segment or a part of a code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some implementations as replacements, the functions marked in the box can also occur in a sequence different from that marked in the accompanying drawings. For example, the boxes represented by two connections 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 block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operating instruction, or can be implemented with a combination of dedicated hardware and computer instructions.

[0080] The units or modules involved in the embodiments described in the present application may be implemented by software or hardware. The units or modules described may also be arranged in a processor. The names of these units or modules do not, in some cases, constitute limitations on the units or modules themselves.

[0081] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A method for cleaning a vehicle windshield, characterized in that: include: When the detection conditions are met, the wiper is controlled to operate; Obtaining the operating status of the wiper; According to the operating state of the wiper, determining whether there is an obstruction on the windshield, wherein the obstruction includes at least one of ice, frost and snow; If the obstruction exists, the vehicle is controlled to run a defrost mode.

2. The vehicle windshield cleaning method according to claim 1, characterized in that: Also includes: receiving a key unlocking signal; Determine whether the unlock and defrost detection is turned on; If yes, it is determined that the detection condition is met.

3. The vehicle windshield cleaning method according to claim 1 or 2, characterized in that: The determining whether there is an obstruction on the windshield according to the operating state of the wiper comprises: Obtaining the relative motion between the wiper blade and the wiper rocker arm of the wiper; According to the relative movement between the wiper blade and the wiper rocker arm of the wiper, it is determined whether there is ice, frost or snow on the windshield.

4. The vehicle windshield cleaning method according to claim 3, characterized in that: The method of judging whether ice, frost or snow is present on the windshield according to the relative movement between the wiper blade and the wiper rocker arm of the wiper comprises: Obtaining the obstruction pressure when the wiper is in operation according to the relative movement between the wiper blade and the wiper rocker arm of the wiper; Based on the blocking pressure, it is determined whether there is ice, frost or snow on the windshield.

5. The vehicle windshield cleaning method according to claim 4, characterized in that: The step of determining whether ice, frost or snow is present on the windshield according to the obstruction pressure includes: Obtaining a pressure difference between the obstruction pressure and a reference pressure, wherein the reference pressure is determined according to a relative movement between the wiper blade and the wiper rocker arm when there is no obstruction on the windshield; Determining whether the pressure difference is greater than a preset threshold; If so, it is determined that there is ice, frost or snow on the windshield.

6. The vehicle windshield cleaning method according to claim 4 or 5, characterized in that: The obstruction pressure is detected by a pressure sensor.

7. The vehicle windshield cleaning method according to claim 1, characterized in that: If the obstruction exists, controlling the vehicle to operate in a defrost mode includes: Control the air outlet of the air conditioning system to discharge hot air toward the front windshield at the maximum air volume; After the first predetermined time, the wiper is controlled to operate for a second predetermined time to complete the operation of the defrost mode.

8. A vehicle windshield cleaning system, characterized in that: include: An operation control module, used for controlling the operation of the wiper when the detection conditions are met; An acquisition module, used for acquiring the operating status of the wiper; a judgment module, used for judging whether there is an obstruction on the windshield according to the operation state of the wiper, wherein the obstruction includes at least one of ice, frost and snow; The cleaning control module is used to control the vehicle to run a defrost mode when the obstruction exists on the windshield.

9. A vehicle, characterized in that: include: A vehicle windshield cleaning system according to claim 8.

10. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the vehicle windshield cleaning method according to any one of claims 1 to 7 is implemented.

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