Vehicle air cleaner, method of controlling vehicle air cleaner, and vehicle

Abstract

The application discloses a vehicle air filter, a control method of the vehicle air filter and a vehicle. The vehicle air filter comprises a shell, an air inlet, an air outlet and a pollution outlet are arranged on the shell, a first filter element is arranged in a filter space and has a filtering position and a cleaning position, when the first filter element is in the filtering position, the first filter element extends horizontally and is located between the air inlet and the air outlet, when the first filter element is in the cleaning position, the first filter element extends vertically and is arranged opposite to the air inlet, and the first filter element is rotatable between the cleaning position and the filtering position. Thus, by arranging the first filter element, the first filter element has the filtering position and the cleaning position, the vehicle air filter can autonomously clean the first filter element on the premise that the use cost can be reduced by replacing the first filter element, the replacement frequency of the first filter element is reduced, and the loss and use cost of the vehicle air filter are further reduced.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a vehicle air filter, a method for controlling the vehicle air filter, and a vehicle. Background Technology

[0002] Automotive air filters generally consist of a housing and a filter element. The filter element is used to filter impurities such as sand and dust from the air. The filter element is a consumable part of the vehicle. As the vehicle's mileage increases, dust will accumulate on the underside of the filter element. After accumulating to a certain extent, it will affect the engine's intake resistance and increase fuel consumption. Therefore, the vehicle needs to replace the filter element regularly according to the specified mileage and usage environment.

[0003] In related technologies, the structural design of the filter element is not reasonable enough. For desert off-road vehicles, due to the harsh sand and dust environment, users not only need to prepare more filter elements, which takes up vehicle storage space, but also need to frequently disassemble and replace the filter element during off-road activities, which will increase the wear of the vehicle's air filter and the cost of filter element use, and reduce the user experience. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide a vehicle air filter that can automatically clean its first filter element, thereby reducing air filter wear and lowering operating costs.

[0005] The present invention further proposes a method for controlling vehicle filter elements.

[0006] The present invention further proposes a vehicle.

[0007] According to an embodiment of the present invention, a vehicle air filter includes: a housing having an air inlet, an air outlet, and a drain outlet, a filter space being provided inside the housing and communicating between the air inlet and the air outlet, and the drain outlet being located at the bottom of the housing; and a first filter element disposed within the filter space and having a filtering position and a cleaning position. When the first filter element is in the filtering position, it extends horizontally and is located between the air inlet and the air outlet. When the first filter element is in the cleaning position, it extends vertically and is disposed opposite to the air inlet. The first filter element is rotatable between the cleaning position and the filtering position.

[0008] Therefore, by setting up a first filter element, which has both a filtration position and a cleaning position, the vehicle air filter can automatically clean the first filter element, thereby reducing the frequency of replacement and disassembly of the vehicle air filter, while reducing the cost of use by replacing the first filter element. This further reduces the wear and tear on the vehicle air filter and lowers the overall cost of use.

[0009] In some examples of the present invention, the first filter element includes a plurality of sub-filter elements, which are rotatably disposed in the filtration space. When the first filter element is in the filtration position, the plurality of sub-filter elements extend in the horizontal direction. When the first filter element is in the cleaning position, the plurality of sub-filter elements rotate sequentially to extend in the vertical direction.

[0010] In some examples of the present invention, the air inlet includes a main air inlet and a secondary air inlet, the air inlet area of ​​the main air inlet is larger than the air inlet area of ​​the secondary air inlet, and the main air inlet is selectively opened and closed.

[0011] In some examples of the present invention, the air inlet and the air outlet are disposed on opposite sides of the housing and spaced apart vertically, and the drain outlet is located at the bottom of the housing.

[0012] In some examples of the present invention, the housing includes an upper shell and a lower shell, the upper shell is disposed on the upper side of the lower shell and together with the lower shell defines a filtration space, the air inlet is disposed in the lower shell, the air outlet is disposed in the upper shell, the first filter element is disposed inside the lower shell, and a second filter element is disposed between the upper shell and the lower shell.

[0013] The vehicle air filter control method according to embodiments of the present invention is applicable to the vehicle air filter described above. The control method includes: acquiring the pressure difference between the two sides of the filter space located on the first filter element; determining the relationship between the pressure difference between the two sides of the filter space located on the first filter element and a preset value; when the pressure difference between the two sides of the filter space located on the first filter element is less than the preset value, controlling the first filter element to rotate to the filter position and controlling the main air inlet and the auxiliary air inlet to open; when the pressure difference between the two sides of the filter space located on the first filter element is greater than the preset value, controlling the first filter element to rotate to the clean position, controlling the main air inlet to close, and controlling the auxiliary air inlet to open.

[0014] In some examples of the present invention, the first filter element includes a plurality of sub-filter elements. When the pressure difference between the two sides of the filter space is greater than a preset value, controlling the first filter element to rotate to the clean position, controlling the main air inlet to close, and controlling the auxiliary air inlet to open further includes: controlling the plurality of sub-filter elements to rotate sequentially to extend vertically.

[0015] In some examples of the present invention, controlling the plurality of sub-filter elements to rotate sequentially to a vertically extending position further includes: controlling one of the plurality of sub-filter elements to rotate from a horizontally extending position to a vertically extending position and maintaining it for a preset time; after one of the plurality of sub-filter elements has been vertically extending for a preset time, controlling one of the plurality of sub-filter elements to rotate to a horizontally extending position; after one of the plurality of sub-filter elements has rotated to a horizontally extending position, controlling another of the plurality of sub-filter elements to rotate from a horizontally extending position to a vertically extending position and maintaining it for a preset time; after another of the plurality of sub-filter elements has been vertically extending for a preset time, controlling another of the plurality of sub-filter elements to rotate to a horizontally extending position.

[0016] In some examples of the present invention, after controlling the plurality of sub-filter elements to rotate sequentially to the vertically extended position, the method further includes: obtaining again the pressure difference between the two sides of the filter space located on the first filter element; determining the relationship between the pressure difference between the two sides of the filter space located on the first filter element and a preset value; when the pressure difference between the two sides of the filter space located on the first filter element is greater than the preset value, continuing to control the first filter element to rotate to the clean position, controlling the main air inlet to close, and controlling the auxiliary air inlet to open.

[0017] In some examples of the present invention, after controlling the first filter element to rotate to the clean position, controlling the main air intake to close, and controlling the auxiliary air intake to open when the pressure difference between the two sides of the filter space is greater than a preset value, the method further includes: controlling the vehicle instrument panel to remind the user to replace the first filter element.

[0018] A vehicle according to an embodiment of the present invention includes: the air filter of the vehicle described above.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of a vehicle air filter according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of a vehicle air filter according to an embodiment of the present invention from another perspective;

[0023] Figure 3 This is a partial schematic diagram of a vehicle air filter when the first filter element is in the filtering position according to an embodiment of the present invention;

[0024] Figure 4 This is a partial schematic diagram of a vehicle air filter when one of its sub-filter elements is in the clean position, according to an embodiment of the present invention.

[0025] Figure 5 This is a partial schematic diagram of a vehicle air filter when another sub-filter element is in the clean position according to an embodiment of the present invention;

[0026] Figure 6 This is a partial schematic diagram of a vehicle air filter when another sub-filter element is in the clean position according to an embodiment of the present invention;

[0027] Figure 7 This is a flowchart of a vehicle air filter control method according to an embodiment of the present invention;

[0028] Figure 8 This is a flowchart of step S4 according to an embodiment of the present invention;

[0029] Figure 9 This is a flowchart of step S4-1 according to an embodiment of the present invention.

[0030] Figure label:

[0031] 100. Vehicle air filter;

[0032] 10. Shell; 11. Upper shell; 111. Air outlet; 12. Lower shell; 121. Air inlet; 1211. Main air inlet; 1212. Secondary air inlet; 122. Drain outlet; 13. Filter space; 14. Sand discharge nozzle;

[0033] 20. First filter element; 21. Sub-filter element;

[0034] 30. Second filter element; 40. Flip plate;

[0035] 50. First pressure sensor; 60. Second pressure sensor; 70. First motor; 80. Second motor. Detailed Implementation

[0036] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0037] The following is for reference. Figures 1-9 A vehicle air filter 100 according to an embodiment of the present invention is described, and the vehicle air filter 100 may employ a control method for the vehicle air filter 100.

[0038] Combination Figures 1-6 As shown, the vehicle air filter 100 according to the present invention mainly includes: a housing 10 and a first filter element 20, wherein the housing 10 is provided with an air inlet 121, an air outlet 111 and a drain outlet 122, a filter space 13 is provided inside the housing 10, the filter space 13 is connected between the air inlet 121 and the air outlet 111, the drain outlet 122 is provided at the bottom of the housing 10, the first filter element 20 is provided in the filter space 13 and has a filter position and a clean position. When the first filter element 20 is in the filter position, the first filter element 20 extends horizontally and is located between the air inlet 121 and the air outlet 111. When the first filter element 20 is in the clean position, the first filter element 20 extends vertically and is arranged opposite to the air inlet 121. The first filter element 20 is rotatable between the clean position and the filter position.

[0039] Specifically, by providing an air inlet 121 and an air outlet 111 on the housing 10, and providing a filter space 13 inside the housing 10, the filter space 13 connects the air inlet 121 and the air outlet 111. The first filter element 20 is disposed in the filter space 13. By allowing the first filter element 20 to rotate between a clean position and a filter position, when the first filter element 20 is in the filter position, the first filter element 20 extends horizontally and is located between the air inlet 121 and the air outlet 111. In this way, air containing sand and dust can enter the filter space 13 through the air inlet 121, and after being filtered by the first filter element 20, it flows out through the air outlet 111, thereby ensuring the normal operation of the vehicle air filter 100, enabling the vehicle air filter 100 to deliver clean air to the engine and meet the vehicle's air usage requirements.

[0040] Furthermore, after the air containing sand and dust is filtered by the first filter element 20, some of it will impact the first filter element 20 and fall below it. Due to gravity, it will settle at the bottom of the filter space 13. By setting a drain port 122 on the housing 10 and placing the drain port 122 at the bottom of the housing 10, the accumulated sand and dust can be discharged through the drain port 122, ensuring the normal use of the vehicle air filter 100.

[0041] In some embodiments of the present invention, a sand discharge nozzle 14 can be provided at the drain outlet 122. The cross-sectional area of ​​the sand discharge nozzle 14 gradually decreases in the sand discharge direction. This ensures that the sand in the housing 10 can enter the sand discharge nozzle 14, and allows the sand to move along the sand discharge direction under the action of gravity, making it easier for the sand discharge nozzle 14 to discharge the sand. This facilitates the collection and discharge of sand and can further improve the working performance of the vehicle air filter 100.

[0042] Furthermore, after the air containing sand and dust is filtered by the first filter element 20, some of the sand and dust will adhere to the lower side of the first filter element 20. After accumulating to a certain extent, it will affect the intake resistance of the engine and increase fuel consumption. By making the first filter element 20 rotatable between the clean position and the filter position, the first filter element 20 can be placed in the clean position according to the vehicle mileage and the usage environment. The first filter element 20 extends vertically and is set opposite to the air intake 121, so that air can be normally introduced into the filter space 13 through the air intake 121 without the need for an additional air source. The air can impact the first filter element 20, causing the dust attached to the first filter element 20 to fall off, thus cleaning the first filter element 20. This allows the first filter element 20 to be reused to filter sand and dust in the air. In this way, the vehicle air filter 100 can automatically clean the first filter element 20, which can reduce the number of times the vehicle air filter 100 is disassembled and reduce the wear and tear of the vehicle air filter 100.

[0043] Therefore, by setting the first filter element 20, which has a filtration position and a cleaning position, the vehicle air filter 100 can automatically clean the first filter element 20, thereby reducing the frequency of replacement of the first filter element 20 and the number of times the vehicle air filter 100 is disassembled, further reducing the wear and tear of the vehicle air filter 100 and further reducing the cost of use.

[0044] Combination Figures 3-6 As shown, the first filter element 20 may include a plurality of sub-filter elements 21, which are rotatably disposed in the filtration space 13. When the first filter element 20 is in the filtration position, the plurality of sub-filter elements 21 extend in the horizontal direction. When the first filter element 20 is in the cleaning position, the plurality of sub-filter elements 21 rotate sequentially to extend in the vertical direction.

[0045] Specifically, the first filter element 20 can include multiple sub-filter elements 21, each of which can rotate within the filtration space 13. When the first filter element 20 is in the filtration position, all sub-filter elements 21 extend horizontally, enabling reliable filtration of air containing sand and dust. Furthermore, when the first filter element 20 needs cleaning and is in the cleaning position, the multiple sub-filter elements 21 can be sequentially rotated to extend vertically. This provides a more efficient and efficient filtration compared to using only one sub-filter element. The separate first filter element effectively reduces the vertical length of the filter space 13 occupied by the first filter element 20 when it is in the clean position, thereby avoiding an increase in the volume of the vehicle air filter 100 and ensuring the compactness of the vehicle air filter 100 structure. On the other hand, compared to having multiple sub-filter elements rotate simultaneously and only extend vertically, this prevents dust on the sub-filter element 21 near the air inlet 121 from being blown onto the sub-filter element 21 away from the air inlet 121, thereby avoiding a reduction in the cleaning effect of the first filter element 20.

[0046] In some embodiments of the present invention, a plurality of first motors 70 may be provided on the vehicle air filter 100. By driving the plurality of first motors 70 to a plurality of sub-filter elements 21 in a one-to-one correspondence, the rotation of the plurality of sub-filter elements 21 can be controlled by controlling the operation of the first motors 70, so that the plurality of sub-filter elements 21 can switch between the cleaning position and the filtering position, making the rotation of the first filter element 20 more intelligent and reliable.

[0047] Combination Figures 1-6 As shown, the air inlet 121 may include a main air inlet 1211 and a secondary air inlet 1212. The air inlet area of ​​the main air inlet 1211 is larger than that of the secondary air inlet 1212. The main air inlet 1211 is selectively opened and closed. Specifically, by setting the intake area of ​​the main air intake 1211 to be larger than that of the intake port 121, and selectively opening and closing the main air intake 1211, when the vehicle air filter 100 is performing filtration, the main air intake 1211 can be opened, and air can simultaneously enter the filtration space 13 through the main air intake 1211 and the auxiliary air intake 1212, which can increase the intake volume of the vehicle air filter 100 and ensure the intake volume of the engine. When the vehicle air filter 100 is performing cleaning, the main air intake 1211 can be closed, and air enters the filtration space 13 through the auxiliary air intake 1212. Since the intake area of ​​the auxiliary air intake 1212 is smaller, the gas flow rate is higher, thereby inputting high-speed airflow into the filtration space 13, which can improve the cleaning effect and cleaning efficiency of the first filter element 20.

[0048] In some embodiments of the present invention, a second motor 80 may be provided on the vehicle air filter 100, and a flap 40 may be provided at the main air intake 1211. By connecting the second motor 80 and the flap 40 through a transmission connection, the operation of the second motor 80 can be controlled to control the rotation of the flap 40, so that the flap 40 can selectively control the opening and closing of the main air intake 1211, thereby making the selective opening and closing of the main air intake 1211 more intelligent and reliable.

[0049] Combination Figures 1-6 As shown, the air inlet 121 and air outlet 111 are located on opposite sides of the housing 10 and spaced vertically, while the drain outlet 122 is located at the bottom of the housing 10. Specifically, the air inlet 121 and air outlet 111 are positioned on opposite sides of the housing 10 and spaced vertically, which aligns with the airflow direction. This not only ensures that the first filter element 20 effectively and reliably filters the air but also makes the airflow within the filtration space 13 more stable and smooth, thus improving the performance of the vehicle air filter 100. Furthermore, by placing the drain outlet 122 at the bottom of the housing 10, dust can accumulate near the drain outlet 122 under gravity, facilitating its discharge. This optimizes the placement of the air inlet 121, air outlet 111, and drain outlet 122 on the housing 10, further enhancing the performance of the vehicle air filter 100.

[0050] Combination Figures 1-6 As shown, the housing 10 may include an upper housing 11 and a lower housing 12. The upper housing 11 is disposed on the upper side of the lower housing 12 and together with the lower housing 12 defines a filter space 13. An air inlet 121 is disposed on the lower housing 12, an air outlet 111 is disposed on the upper housing 11, a first filter element 20 is disposed inside the lower housing 12, and a second filter element 30 is disposed between the upper housing 11 and the lower housing 12.

[0051] Specifically, by placing the upper shell 11 on the upper side of the lower shell 12, the upper shell 11 and the lower shell 12 can jointly define the filtration space 13. By placing the air inlet 121 on the lower shell 12 and the air outlet 111 on the upper shell 11, the positions of the air inlet 121 and the air outlet 111 can be more reasonable. The sand and dust filtered by the first filter element 20 can be collected in the lower shell 12 due to gravity, thereby further optimizing the structural design of the shell 10 and ensuring the normal operation of the vehicle air filter 100.

[0052] Furthermore, the first filter element 20 can filter larger diameter dust particles, and the second filter element 40 can filter smaller diameter dust particles. By placing the first filter element 20 inside the lower housing 12 and placing the second filter element 30 between the upper housing 11 and the lower housing 12, the second filter element 30 can be positioned between the air inlet 121 and the air outlet 111. The second filter element 30 is also spaced apart on the side of the first filter element 20 near the air outlet 111. After the first filter element 20 filters the large diameter dust particles in the air, the air can flow to the second filter element 30, which can filter the small diameter dust particles in the air. Then, the cleaner air flows out from the air outlet 111, thereby improving the filtration capacity of the vehicle air filter 100 for dust particles in the air and further enhancing the working performance of the vehicle air filter 100.

[0053] It should be noted that, in this way, during the use of the vehicle air filter 100, the vehicle's usage needs can be met by cleaning or replacing the first filter element 20, thereby effectively reducing the number of times the second filter element 30 needs to be replaced and reducing usage costs.

[0054] The first filter element 20 can be set as a non-woven fabric filter element. When the vehicle is in a harsh environment such as a desert, where large dust particles account for a large proportion, the non-woven fabric filter element can filter more than 90% of the dust. This not only ensures the filtration capacity, but also makes the raw materials for the first filter element 20 readily available, thereby reducing the manufacturing cost of the first filter element 20 and the cost for users to replace the first filter element 20.

[0055] Furthermore, the second filter element 30 can be set as a paper filter element. The paper filter element is composed of plant fibers, synthetic fibers and resin adhesives. The fibers are interwoven to form fine fiber pores with an average pore size of up to 60um. The filtration efficiency of the paper filter element can reach 99.5%, and particles larger than 20um can be filtered 100%.

[0056] In some embodiments of the present invention, the lower shell 12 may include a first part and a second part, with the first part positioned above the second part. The first part is rectangular to facilitate alignment and connection with the upper shell 11. The second part may be inverted conical to facilitate the collection of sand and dust, allowing the sand and dust to flow towards the discharge nozzle 14 under gravity, thus facilitating the discharge of sand and dust.

[0057] Combination Figure 7 As shown, the control method for the vehicle air filter 100 according to an embodiment of the present invention can be adapted to the vehicle air filter 100 described above, and the control method may include the following steps:

[0058] S1. Obtain the pressure difference between the two sides of the first filter element 20 in the filter space 13;

[0059] S2. Determine the relationship between the pressure difference on both sides of the first filter element 20 in the filter space 13 and the preset value.

[0060] S3. When the pressure difference between the two sides of the first filter element 20 in the filter space 13 is less than the preset value, control the first filter element 20 to rotate to the filter position and control the main air inlet 1211 and the auxiliary air inlet 1212 to open.

[0061] S4. When the pressure difference between the two sides of the first filter element 20 in the filter space 13 is greater than the preset value, control the first filter element 20 to rotate to the clean position, control the main air inlet 1211 to close, and control the auxiliary air inlet 1212 to open.

[0062] Specifically, the vehicle air filter 100 may also be equipped with a first pressure sensor 50 and a second pressure sensor 60. The first pressure sensor 50 can detect the pressure on the upper side of the first filter element 20, and the second pressure sensor 60 can detect the pressure on the lower side of the first filter element 20. The vehicle controller is electrically connected to the first pressure sensor 50 and the second pressure sensor 60, and the vehicle controller is also electrically connected to the first motor 70 and the second motor 80. During the operation of the vehicle air filter 100, the controller can first acquire the pressure on both sides of the first filter element 20 and calculate the difference between them. Then, it can determine the relationship between the pressure difference on both sides of the filter space 13 and the pre-stored preset value, and selectively control the rotation of the first filter element 20 and the opening and closing of the main air intake 1211 based on the determination result. The preset value can be 2 kPa, which is not specifically limited here.

[0063] When the pressure difference between the two sides of the first filter element 20 in the filter space 13 is less than the preset value, it indicates that there is less sand and dust attached to the first filter element 20. The first filter element 20 can perform filtering work. At this time, the controller can control the first filter element 20 to rotate to the filtering position and control both the main air intake 1211 and the auxiliary air intake 1212 to open. In this way, air can enter the filter space 13 from the main air intake 1211 and the auxiliary air intake 1212 at the same time. The first filter element 20 can filter the air, thereby ensuring the normal operation of the vehicle air filter 100.

[0064] When the pressure difference between the two sides of the first filter element 20 in the filtration space 13 is greater than the preset value, it indicates that there is a lot of sand and dust attached to the first filter element 20. The first filter element 20 cannot perform filtration and needs to be cleaned. At this time, the controller can control the first filter element 20 to rotate to the cleaning position, and control the main air inlet 1211 to close and the auxiliary air inlet 1212 to open. In this way, air can enter the filtration space 13 from the auxiliary air inlet 1212, forming a high-speed airflow that impacts the first filter element 20 in the cleaning position, thereby cleaning the first filter element 20 and making it easy for the first filter element 20 to be put back into use.

[0065] In this way, the vehicle air filter 100 can autonomously clean the sand and dust on the first filter element 20, making the filtration and cleaning work of the vehicle air filter 100 more intelligent and reliable. Thus, while ensuring the normal operation of the vehicle air filter 100, the number of times the vehicle air filter 100 is disassembled and cleaned can be reduced, thereby reducing the wear and tear on the vehicle air filter 100.

[0066] Furthermore, combined Figures 3-6 as well as Figure 8 As shown, the first filter element 20 may include multiple sub-filter elements 21. Step S4 may further include: S4-1, controlling the multiple sub-filter elements 21 to rotate sequentially to extend vertically. Specifically, when the pressure difference between the two sides of the filter space 13 and the first filter element 20 is greater than a preset value, controlling the first filter element 20 to rotate to the cleaning position, controlling the main air inlet 1211 to close, and controlling the auxiliary air inlet 1212 to open, the controller can also control the multiple sub-filter elements 21 to rotate sequentially to extend, thus enabling sequential cleaning of the multiple sub-filter elements 21, improving the cleaning effect of the multiple sub-filter elements 21, and thereby improving the working performance of the vehicle air filter 100.

[0067] Furthermore, combined Figure 9 As shown, step S4-1 can mainly include the following steps:

[0068] S4-1-1, Control one of the multiple sub-filter elements 21 to rotate from a horizontal extension setting to a vertical extension setting and maintain it for a preset time;

[0069] S4-1-2. After a preset time has elapsed in the vertical direction of one of the multiple sub-filter elements 21, control one of the multiple sub-filter elements 21 to rotate to extend in the horizontal direction.

[0070] S4-1-3. When one of the multiple sub-filter elements 21 is rotated to extend in the horizontal direction, the other of the multiple sub-filter elements 21 is controlled to rotate from extending in the horizontal direction to extending in the vertical direction and maintain this position for a preset time.

[0071] S4-1-4. After a preset time has elapsed in the vertical direction, another of the multiple sub-filter elements 21 is controlled to rotate to the horizontal direction.

[0072] Specifically, when the controller controls multiple sub-filter elements 21 to rotate sequentially to a vertical extension position, it can first control one of the multiple sub-filter elements 21 to rotate from a horizontal extension position to a vertical extension position and maintain it for a preset time to clean that sub-filter element 21. Then, after that filter element has been in the vertical extension position for the preset time, it controls one of the multiple sub-filter elements 21 to rotate to a horizontal extension position. And after that sub-filter element 21 rotates from the cleaned position to the horizontal extension position, it controls another of the multiple sub-filter elements 21 to extend from the horizontal position. The system is set to rotate to a vertical extension position and hold for a preset time to clean another sub-filter element. Then, after another sub-filter element 21 has extended vertically for the preset time, it is controlled to rotate to a horizontal extension position. In this way, multiple sub-filter elements 21 can be controlled to rotate to the cleaning position sequentially and cleaned. After cleaning is completed, all sub-filter elements 21 are rotated to the filtration position, making the cleaning of multiple sub-filter elements 21 more intelligent and reliable, and improving the cleaning effect. The preset time can be 20 seconds, but is not specifically limited here.

[0073] Combination Figure 8 As shown, after step S4-1, the control method for the vehicle air filter 100 may further include the following steps:

[0074] S4-2. Once again, obtain the pressure difference between the two sides of the first filter element 20 in the filter space 13.

[0075] S4-3. Determine the relationship between the pressure difference on both sides of the first filter element 20 in the filter space 13 and the preset value.

[0076] S4-4. When the pressure difference between the two sides of the first filter element 20 in the filter space 13 is greater than the preset value, continue to control the first filter element 20 to rotate to the clean position, control the main air inlet 1211 to close, and control the auxiliary air inlet 1212 to open.

[0077] Specifically, after the controller controls multiple sub-filter elements 21 to rotate sequentially to a vertical extension position and completes the sequential cleaning of multiple sub-filter elements 21, the controller can again obtain the pressure difference between the two sides of the first filter element 20 in the filtration space 13, and judge the relationship between the pressure difference between the two sides of the first filter element 20 and the preset value. When the pressure difference between the two sides of the first filter element 20 in the filtration space 13 is less than the preset value, it means that there is less dust attached to the first filter element 20 and it can be put back into use for filtration. When the pressure difference between the two sides of the first filter element 20 in the filtration space 13 is greater than the preset value, it means that there is still a lot of dust attached to the first filter element 20. At this time, the controller continues to control the first filter element 20 to rotate to the cleaning position, controls the main air inlet 1211 to close, and controls the auxiliary air inlet 1212 to open, thereby cleaning the first filter element 20 again.

[0078] Furthermore, combined Figure 8 As shown, after step S4-4, the control method for the vehicle air filter 100 may further include the following steps: S4-5, controlling the vehicle instrument panel to remind the user to replace the first filter element 20. Specifically, when the pressure difference between the two sides of the filter space 13 and the first filter element 20 is greater than a preset value, the first filter element 20 is rotated to the cleaning position, the main air intake 1211 is closed, and the auxiliary air intake 1212 is opened. After multiple cycles of cleaning, if the pressure difference between the two sides of the filter space 13 and the first filter element 20 is still greater than the preset value, it indicates that the first filter element 20 is in a worn state and needs to be replaced. At this time, the controller can control the vehicle instrument panel to remind the user to replace the first filter element 20, thereby reducing the number of times the first filter element 20 needs to be replaced and reducing the cost of use, while ensuring the normal use of the vehicle air filter 100.

[0079] The vehicle according to the present invention may mainly include the air filter 100 described above. Specifically, by applying the air filter 100 to the vehicle, when the vehicle is driving in harsh environments such as deserts, it can automatically clean the first filter element 20, reducing the frequency of replacement of the first filter element 20, thereby reducing the number of times the vehicle air filter 100 is disassembled, further reducing the vehicle's operating costs and improving the user experience.

[0080] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0081] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0082] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vehicle air filter, characterized in that, include: A housing (10) is provided with an air inlet (121), an air outlet (111) and a drain outlet (122). A filter space (13) is provided inside the housing (10). The filter space (13) is connected between the air inlet (121) and the air outlet (111). The drain outlet (122) is located at the bottom of the housing (10). The first filter element (20) is disposed in the filter space (13) and has a filter position and a clean position. When the first filter element (20) is in the filter position, the first filter element (20) extends horizontally and is located between the air inlet (121) and the air outlet (111). When the first filter element (20) is in the clean position, the first filter element (20) extends vertically and is disposed opposite to the air inlet (121). The first filter element (20) is rotatable between the clean position and the filter position.

2. The vehicle air filter according to claim 1, characterized in that, The first filter element (20) includes a plurality of sub-filter elements (21), which are rotatably disposed in the filter space (13). When the first filter element (20) is in the filter position, the plurality of sub-filter elements (21) extend in the horizontal direction. When the first filter element (20) is in the clean position, the plurality of sub-filter elements (21) rotate sequentially to extend in the vertical direction.

3. The vehicle air filter according to claim 1, characterized in that, The air inlet (121) includes a main air inlet (1211) and a secondary air inlet (1212). The air inlet area of ​​the main air inlet (1211) is larger than that of the secondary air inlet (1212). The main air inlet (1211) is selectively opened and closed.

4. The vehicle air filter according to claim 1, characterized in that, The air inlet (121) and the air outlet (111) are located on opposite sides of the housing (10) and spaced apart vertically, and the drain outlet (122) is located at the bottom of the housing (10).

5. The vehicle air filter according to claim 1, characterized in that, The housing (10) includes an upper shell (11) and a lower shell (12). The upper shell (11) is disposed on the upper side of the lower shell (12) and together with the lower shell (12) defines a filter space (13). The air inlet (121) is disposed on the lower shell (12), and the air outlet (111) is disposed on the upper shell (11). The first filter element (20) is disposed inside the lower shell (12), and a second filter element (30) is disposed between the upper shell (11) and the lower shell (12).

6. A method for controlling a vehicle air filter, characterized in that, The control method, applicable to any one of claims 1-5, comprises: Obtain the pressure difference between the two sides of the filter space (13) located on the first filter element (20); Determine the relationship between the pressure difference on both sides of the filter space (13) located on the first filter element (20) and a preset value; When the pressure difference between the two sides of the first filter element (20) in the filter space (13) is less than a preset value, the first filter element (20) is controlled to rotate to the filter position, and the main air inlet (1211) and the auxiliary air inlet (1212) are controlled to open. When the pressure difference between the two sides of the first filter element (20) in the filter space (13) is greater than a preset value, the first filter element (20) is controlled to rotate to the clean position, the main air inlet (1211) is controlled to close, and the auxiliary air inlet (1212) is controlled to open.

7. The vehicle air filter control method according to claim 6, characterized in that, The first filter element (20) includes multiple sub-filter elements (21). The step of controlling the first filter element (20) to rotate to the clean position, controlling the main air inlet (1211) to close, and controlling the auxiliary air inlet (1212) to open when the pressure difference between the two sides of the filter space (13) is greater than a preset value further includes: Control the multiple sub-filter elements (21) to rotate sequentially to extend vertically.

8. The vehicle air filter control method according to claim 7, characterized in that, The method of controlling the multiple sub-filter elements (21) to rotate sequentially to a vertically extended position also includes: Control one of the multiple sub-filter elements (21) to rotate from a horizontally extended position to a vertically extended position and maintain it for a preset time; After one of the multiple sub-filter elements (21) has been extended vertically for a preset time, one of the multiple sub-filter elements (21) is controlled to rotate to extend horizontally. When one of the plurality of sub-filter elements (21) is rotated to extend in the horizontal direction, the other of the plurality of sub-filter elements (21) is controlled to rotate from extending in the horizontal direction to extending in the vertical direction and remain there for a preset time. After a preset time has elapsed in the vertical direction, one of the multiple sub-filter elements (21) is controlled to rotate to extend in the horizontal direction.

9. The vehicle air filter control method according to claim 7, characterized in that, After the process of controlling the multiple sub-filter elements (21) to rotate sequentially to a vertically extended position, it also includes: The pressure difference between the two sides of the filter space (13) located on the first filter element (20) is obtained again; Determine the relationship between the pressure difference on both sides of the filter space (13) located on the first filter element (20) and a preset value; When the pressure difference between the two sides of the first filter element (20) in the filter space (13) is greater than a preset value, the first filter element (20) is controlled to rotate to the clean position, the main air inlet (1211) is controlled to close, and the auxiliary air inlet (1212) is controlled to open.

10. The vehicle air filter control method according to claim 9, characterized in that, When the pressure difference between the two sides of the first filter element (20) in the filter space (13) is greater than a preset value, the first filter element (20) is continuously rotated to the clean position, the main air inlet (1211) is closed, and the auxiliary air inlet (1212) is opened. The method further includes: The vehicle instrument panel reminds the user to replace the first filter element (20).

11. A vehicle, characterized in that, include: The vehicle air filter according to any one of claims 1-5.

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