Air inlet system, vehicle and control method

Abstract

The invention relates to an air inlet system, a vehicle and a control method, and relates to the technical field of engine air inlet systems, the air inlet system comprises an air inlet channel, and the air outlet end of the air inlet channel is provided with a first air outlet and a second air outlet which can be opened and closed; a first air inlet and a second air inlet are formed in the air inlet end of the air filter, and the second air inlet is communicated with the second air outlet through a pipeline; and the air coarse filter is arranged on a pipeline between the first air outlet and the first air inlet. Whether the current dust concentration is smaller than the set dust concentration or not is judged, if the current dust concentration is larger than or equal to the set dust concentration, the first air outlet is opened, the second air outlet is closed, the air enters the air filter after passing through the air coarse filter, and if the current dust concentration is smaller than the set dust concentration, the second air outlet is opened, and the first air outlet is closed. The vehicle can reduce the air inlet resistance without using an air coarse strainer in a low-dust environment, so that the oil consumption is reduced, the power is improved, and the problems that the oil consumption is increased and the power is reduced in a low-dust state in the prior art are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of engine air intake systems, and in particular to an air intake system, a vehicle and a control method. Background Art

[0002] The main function of the intake system is to deliver clean, dry, sufficient and stable air to the engine to meet the needs of the engine, and to prevent impurities and large dust particles in the air from entering the engine combustion chamber and causing abnormal wear of the engine. Another important function of the intake system is to reduce noise. The intake noise not only affects the passing noise of the whole vehicle, but also affects the noise inside the vehicle, which has a great impact on the ride comfort. The quality of the intake system design directly affects the power and noise quality of the engine, and is related to the ride comfort of the whole vehicle. Reasonable design of silencer components can reduce subsystem noise, thereby improving the NVH performance of the whole vehicle.

[0003] In the prior art, for example, an air filter with an intake compensation and active purge and dust removal structure, such as patent number CN116146388A, comprises a main air filter body, the main air filter body comprises a main intake cavity, a main filter body and a main air outlet, the main air outlet is arranged at one end of the main air filter body, the other end of the main air filter body is provided with a bypass air filter body, and the bypass air filter body is provided with a bypass intake valve for controlling the intake of the bypass air filter body. The air filter with an intake compensation and active purge and dust removal structure of the present invention ensures that the engine has sufficient intake volume, effectively improves the safety and reliability of the engine, and has the characteristics of wide application range and strong practicality.

[0004] However, air generally needs to be pre-filtered through an air coarse filter before entering the air filter for fine filtration. The dust removal principle of an air coarse filter is generally cyclone centrifugal separation or adsorption and flushing through an oil-containing filter. The air coarse filter has a good pre-filtration effect in a dusty environment, but the pre-filtration effect is not obvious in a low-dust environment. On the contrary, due to the large resistance of the air coarse filter, there is a problem of increased fuel consumption and reduced power in a low-dust state. Summary of the invention

[0005] The present application provides an intake system, a vehicle and a control method, which can solve the problem in the prior art that air generally needs to be pre-filtered through an air coarse filter before entering the air filter for fine filtration. The dust removal principle of the air coarse filter is generally cyclone centrifugal separation or adsorption and flushing through an oil-containing filter. The air coarse filter has a good pre-filtration effect in a dusty environment, but the pre-filtration effect is not obvious in a low-dust environment. On the contrary, due to the large resistance of the air coarse filter, there is a problem of increased fuel consumption and reduced power in a low-dust state.

[0006] In a first aspect, an embodiment of the present application provides an air intake system, comprising:

[0007] An air inlet duct, the air outlet end of which is provided with a first air outlet and a second air outlet that can be opened and closed;

[0008] An air filter, the air inlet end of which is provided with a first air inlet and a second air inlet, the second air inlet and the second air outlet being connected through a pipeline;

[0009] The air coarse filter is arranged on the pipeline between the first air outlet and the first air inlet.

[0010] In one embodiment, a valve is provided at the air outlet end of the air inlet duct, and the valve is respectively connected to the first air outlet and the second air outlet, and is used to open or close the first air outlet and the second air outlet.

[0011] In one embodiment, a controller is further included, and the controller is connected to the valve signal. The controller is used to open or close the first air outlet and the second air outlet according to the difference between the current dust concentration and the set dust concentration.

[0012] In one embodiment, a dust sensor is further included. The dust sensor is in signal communication with the controller. The dust sensor is used to obtain the current dust concentration in the environment and transmit the information to the controller.

[0013] In one embodiment, the dust sensor is a laser sensor.

[0014] In one embodiment, the valve includes two valve units, and the two valve units control the first air outlet and the second air outlet respectively.

[0015] In a second aspect, an embodiment of the present application further provides a vehicle, which includes the above-mentioned intake system.

[0016] In a third aspect, an embodiment of the present application further provides an intake system control method, which is implemented using the above-mentioned intake system and includes the following steps:

[0017] Determine whether the current dust concentration is less than the set dust concentration;

[0018] If the current dust concentration is greater than or equal to the set dust concentration, the first air outlet is opened and the second air outlet is closed, so that the gas passes through the air coarse filter and then enters the air filter;

[0019] If the current dust concentration is less than the set dust concentration, the second air outlet is opened and the first air outlet is closed.

[0020] In one embodiment, before determining whether the current dust concentration is less than the set dust concentration, the method further includes: obtaining the current dust concentration through a dust sensor, and converting the current dust concentration into an electrical signal and transmitting it to the controller in real time.

[0021] In one embodiment, when the first air outlet is in an open state, the current dust concentration is less than the set dust concentration, and the duration exceeds the set time, the controller closes the first air outlet and opens the second air outlet. If the duration is less than the set time, the first air outlet remains in an open state.

[0022] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0023] When installing the air intake system, the air outlet end of the air intake duct is provided with a first air outlet and a second air outlet that can be opened and closed, the air filter air inlet end is provided with a first air inlet and a second air inlet, the second air inlet is connected to the second air outlet through a pipeline, and the air coarse filter is arranged on the pipeline between the first air outlet and the first air inlet. It is judged whether the current dust concentration is less than the set dust concentration. If the current dust concentration is greater than or equal to the set dust concentration, the first air outlet is opened and the second air outlet is closed, so that the gas passes through the air coarse filter and enters the air filter. If the current dust concentration is less than the set dust concentration, the second air outlet is opened and the first air outlet is closed. In a low-dust environment, the vehicle does not need to use an air coarse filter to reduce intake resistance, thereby reducing fuel consumption and improving power. This solves the problem in the prior art that air generally needs to be pre-filtered through an air coarse filter before entering the air filter for fine filtration. The dust removal principle of an air coarse filter is generally cyclone centrifugal separation or adsorption and flushing through an oil-containing filter. The air coarse filter has a good pre-filtration effect in a dusty environment, but the pre-filtration effect is not obvious in a low-dust environment. On the contrary, due to the large resistance of the air coarse filter, there is a problem of increased fuel consumption and reduced power in a low-dust state. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a schematic structural diagram of an intake system embodiment of the present invention.

[0026] In the figure: 1. air intake duct; 11. first air outlet; 12. second air outlet; 13. upper air intake duct; 14. lower air intake duct; 2. air coarse filter; 3. air filter; 31. first air intake duct; 32. second air intake duct; 4. valve; 5. controller; 6. dust sensor; 7. engine. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described 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, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] The embodiments of the present application provide an air intake system, a vehicle and a control method, which can solve the problem in the prior art that air generally needs to be pre-filtered through an air coarse filter before entering the air filter for fine filtration. The dust removal principle of the air coarse filter is generally cyclone centrifugal separation or adsorption and flushing through an oil-containing filter. The pre-filtration effect of the air coarse filter is good in a dusty environment, but the pre-filtration effect is not obvious in a low-dust environment. On the contrary, due to the large resistance of the air coarse filter, there is a problem of increased fuel consumption and reduced power in a low-dust state.

[0029] like Figure 1 As shown, on the one hand, the present application provides an air intake system, which includes an air intake duct 1, an air filter 3 and an air coarse filter 2, wherein the air intake duct 1 is provided with a first air outlet 11 and a second air outlet 12 which can be opened and closed at the air outlet end; the air filter 3 is provided with a first air intake 31 and a second air intake 32 at the air intake end, and the second air intake 32 is connected to the second air outlet 12 through a pipeline; the air coarse filter 2 is arranged on the pipeline between the first air outlet 11 and the first air intake 31.

[0030] When installing the air intake system, the air outlet end of the air intake duct 1 is provided with a first air outlet 11 and a second air outlet 12 that can be opened and closed, the air inlet end of the air filter 3 is provided with a first air inlet 31 and a second air inlet 32, the second air inlet 32 ​​is connected with the second air outlet 12 through a pipeline, and the air coarse filter 2 is arranged on the pipeline between the first air outlet 11 and the first air inlet 31. It is judged whether the current dust concentration is less than the set dust concentration. If the current dust concentration is greater than or equal to the set dust concentration, the first air outlet 11 is opened and the second air outlet 12 is closed, so that the gas passes through the air coarse filter 2 and then enters the air filter 3. If the current dust concentration is less than the set dust concentration, the second air outlet 12 is opened and the first air outlet 11 is closed. In a low-dust environment, the vehicle does not need to use the air coarse filter 2 to reduce the intake resistance, thereby reducing fuel consumption and improving power. This solves the problem in the prior art that air generally needs to be pre-filtered through the air coarse filter before entering the air filter for fine filtration. The dust removal principle of the air coarse filter is generally cyclone centrifugal separation or adsorption and flushing through an oil-containing filter. The air coarse filter has a good pre-filtration effect in a dusty environment, but the pre-filtration effect is not obvious in a low-dust environment. On the contrary, due to the large resistance of the air coarse filter, there is a problem of increased fuel consumption and reduced power in a low-dust state.

[0031] In this example, the vehicle can reduce intake resistance by not using an air coarse filter in a low-dust environment, thereby reducing fuel consumption by about 0.4% and increasing power by about 0.3%.

[0032] In this example, the air intake duct 1 includes an upper air intake duct 13 and a lower air intake duct 14 , the first air outlet 11 and the second air outlet 12 are both located at the air outlet end of the lower air intake duct 14 , and the air outlet end of the air filter 3 is connected to the engine 7 .

[0033] like Figure 1 As shown, in some optional embodiments, a valve 4 is provided at the outlet end of the air inlet 1 , and the valve 4 is respectively connected to the first air outlet 11 and the second air outlet 12 for opening or closing the first air outlet 11 and the second air outlet 12 .

[0034] In this embodiment, a valve 4 is provided at the air outlet end of the air inlet 1, and the valve 4 is respectively connected to the first air outlet 11 and the second air outlet 12, and is used to open or close the first air outlet 11 and the second air outlet 12. The structure is simple, and the process of opening and closing the first air outlet 11 and the second air outlet 12 is convenient, that is, if the current dust concentration is greater than or equal to the set dust concentration, the first air outlet 11 is opened, and the second air outlet 12 is closed, so that the gas passes through the air coarse filter 2 and then enters the air filter 3; if the current dust concentration is less than the set dust concentration, the second air outlet 12 is opened, and the first air outlet 11 is closed.

[0035] like Figure 1As shown, in some optional embodiments, a controller 5 is further included, and the controller 5 is connected to the valve 4 by signal. The controller 5 is used to open or close the first air outlet 11 and the second air outlet 12 according to the difference between the current dust concentration and the set dust concentration.

[0036] In this embodiment, the air intake system also includes a controller 5, which is connected to the valve 4 by signal. The controller 5 is used to open or close the first air outlet 11 and the second air outlet 12 according to the difference between the current dust concentration and the set dust concentration. The current dust concentration and the set dust concentration are judged by the difference between the current dust concentration and the set dust concentration. The judgment result can be quickly obtained through the controller 5, and the switching process of the valve 4 can also be automatically executed conveniently, that is, if the controller 5 determines that the current dust concentration is greater than or equal to the set dust concentration, the first air outlet 11 is opened and the second air outlet 12 is closed, so that the gas passes through the air coarse filter 2 and then enters the air filter 3. If the current dust concentration is less than the set dust concentration, the second air outlet 12 is opened and the first air outlet 11 is closed.

[0037] like Figure 1 As shown, in some optional embodiments, a dust sensor 6 is further included. The dust sensor 6 is in signal communication with the controller 5 . The dust sensor 6 is used to obtain the current dust concentration in the environment and transmit the information to the controller 5 .

[0038] In this embodiment, the air intake system also includes a dust sensor 6, which is connected to the controller 5 by signal. The dust sensor 6 is used to obtain the current dust concentration of the environment and transmit information to the controller 5. The controller 5 compares the current dust concentration fed back and the set dust concentration to adjust the opening and closing of the valve 4. That is, if the controller 5 determines that the current dust concentration is greater than or equal to the set dust concentration, the first air outlet 11 is opened and the second air outlet 12 is closed, so that the gas passes through the air coarse filter 2 and then enters the air filter 3. If the current dust concentration is less than the set dust concentration, the second air outlet 12 is opened and the first air outlet 11 is closed.

[0039] In this example, the dust sensor 6 outputs the TSP (total suspended particulate matter) concentration and transmits the TSP concentration signal to the controller 5 in real time. The controller 5 records the TSP concentration and time. When the controller 5 detects that the TSP concentration is ≥ 20 mg / m 3 When the controller 5 detects that the TSP concentration is less than 20 mg / m 3 , open the second air outlet 12 and close the first air outlet 11.

[0040] like Figure 1 As shown, in some optional embodiments, the dust sensor 6 is a laser sensor.

[0041] In this embodiment, the dust sensor 6 is a laser sensor, the sensor data refresh frequency is 1s, and the relative error is 0.1mg / m 3 , range 0-100mg / m 3 , the measurement results are more accurate.

[0042] In some optional embodiments, the valve 4 includes two valve units, and the two valve units control the first gas outlet 11 and the second gas outlet 12 respectively.

[0043] In this embodiment, the structure of the valve 4 is specifically described. The valve 4 includes two valve units. The two valve units control the first air outlet 11 and the second air outlet 12 respectively, so as to facilitate the separate control of the first air outlet 11 and the second air outlet 12.

[0044] In this example, the valve 4 may also be a valve structure that can control the first air outlet 11 and the second air outlet 12 at the same time.

[0045] like Figure 1 As shown, on the one hand, the present application also provides a vehicle, which includes the above-mentioned intake system.

[0046] When installing the air intake system, the air outlet end of the air intake duct 1 is provided with a first air outlet 11 and a second air outlet 12 that can be opened and closed, the air inlet end of the air filter 3 is provided with a first air inlet 31 and a second air inlet 32, the second air inlet 32 ​​is connected with the second air outlet 12 through a pipeline, and the air coarse filter 2 is arranged on the pipeline between the first air outlet 11 and the first air inlet 31. It is judged whether the current dust concentration is less than the set dust concentration. If the current dust concentration is greater than or equal to the set dust concentration, the first air outlet 11 is opened and the second air outlet 12 is closed, so that the gas passes through the air coarse filter 2 and then enters the air filter 3. If the current dust concentration is less than the set dust concentration, the second air outlet 12 is opened and the first air outlet 11 is closed. In a low-dust environment, the vehicle does not need to use the air coarse filter 2 to reduce the intake resistance, thereby reducing fuel consumption and improving power. This solves the problem in the prior art that air generally needs to be pre-filtered through the air coarse filter before entering the air filter for fine filtration. The dust removal principle of the air coarse filter is generally cyclone centrifugal separation or adsorption and flushing through an oil-containing filter. The air coarse filter has a good pre-filtration effect in a dusty environment, but the pre-filtration effect is not obvious in a low-dust environment. On the contrary, due to the large resistance of the air coarse filter, there is a problem of increased fuel consumption and reduced power in a low-dust state.

[0047] In this embodiment, a valve 4 is provided at the air outlet end of the air inlet 1, and the valve 4 is respectively connected to the first air outlet 11 and the second air outlet 12, and is used to open or close the first air outlet 11 and the second air outlet 12. The structure is simple, and the process of opening and closing the first air outlet 11 and the second air outlet 12 is convenient, that is, if the current dust concentration is greater than or equal to the set dust concentration, the first air outlet 11 is opened, and the second air outlet 12 is closed, so that the gas passes through the air coarse filter 2 and then enters the air filter 3; if the current dust concentration is less than the set dust concentration, the second air outlet 12 is opened, and the first air outlet 11 is closed.

[0048] In this embodiment, the air intake system also includes a controller 5, which is connected to the valve 4 by signal. The controller 5 is used to open or close the first air outlet 11 and the second air outlet 12 according to the difference between the current dust concentration and the set dust concentration. The current dust concentration and the set dust concentration are judged by the difference between the current dust concentration and the set dust concentration. The judgment result can be quickly obtained through the controller 5, and the switching process of the valve 4 can also be automatically executed conveniently, that is, if the controller 5 determines that the current dust concentration is greater than or equal to the set dust concentration, the first air outlet 11 is opened and the second air outlet 12 is closed, so that the gas passes through the air coarse filter 2 and then enters the air filter 3. If the current dust concentration is less than the set dust concentration, the second air outlet 12 is opened and the first air outlet 11 is closed.

[0049] In this embodiment, the air intake system also includes a dust sensor 6, which is connected to the controller 5 by signal. The dust sensor 6 is used to obtain the current dust concentration of the environment and transmit information to the controller 5. The controller 5 compares the current dust concentration fed back and the set dust concentration to adjust the opening and closing of the valve 4. That is, if the controller 5 determines that the current dust concentration is greater than or equal to the set dust concentration, the first air outlet 11 is opened and the second air outlet 12 is closed, so that the gas passes through the air coarse filter 2 and then enters the air filter 3. If the current dust concentration is less than the set dust concentration, the second air outlet 12 is opened and the first air outlet 11 is closed.

[0050] In this embodiment, the dust sensor 6 is a laser sensor, the sensor data refresh frequency is 1s, and the relative error is 0.1mg / m 3 , range 0-100mg / m 3 , the measurement results are more accurate.

[0051] In this embodiment, the structure of the valve 4 is specifically described. The valve 4 includes two valve units. The two valve units control the first air outlet 11 and the second air outlet 12 respectively, so as to facilitate the separate control of the first air outlet 11 and the second air outlet 12.

[0052] On the other hand, the present application also provides an intake system control method, which is implemented using the above-mentioned intake system and includes the following steps:

[0053] Determine whether the current dust concentration is less than the set dust concentration;

[0054] If the current dust concentration is greater than or equal to the set dust concentration, the first air outlet 11 is opened and the second air outlet 12 is closed, so that the gas passes through the air coarse filter 2 and then enters the air filter 3;

[0055] If the current dust concentration is less than the set dust concentration, the second air outlet 12 is opened and the first air outlet 11 is closed.

[0056] When installing the air intake system, the air outlet end of the air intake duct 1 is provided with a first air outlet 11 and a second air outlet 12 that can be opened and closed, the air inlet end of the air filter 3 is provided with a first air inlet 31 and a second air inlet 32, the second air inlet 32 ​​is connected with the second air outlet 12 through a pipeline, and the air coarse filter 2 is arranged on the pipeline between the first air outlet 11 and the first air inlet 31. It is judged whether the current dust concentration is less than the set dust concentration. If the current dust concentration is greater than or equal to the set dust concentration, the first air outlet 11 is opened and the second air outlet 12 is closed, so that the gas passes through the air coarse filter 2 and then enters the air filter 3. If the current dust concentration is less than the set dust concentration, the second air outlet 12 is opened and the first air outlet 11 is closed. In a low-dust environment, the vehicle does not need to use the air coarse filter 2 to reduce the intake resistance, thereby reducing fuel consumption and improving power. This solves the problem in the prior art that air generally needs to be pre-filtered through the air coarse filter before entering the air filter for fine filtration. The dust removal principle of the air coarse filter is generally cyclone centrifugal separation or adsorption and flushing through an oil-containing filter. The air coarse filter has a good pre-filtration effect in a dusty environment, but the pre-filtration effect is not obvious in a low-dust environment. On the contrary, due to the large resistance of the air coarse filter, there is a problem of increased fuel consumption and reduced power in a low-dust state.

[0057] In some optional embodiments, before determining whether the current dust concentration is less than the set dust concentration, it also includes: obtaining the current dust concentration through the dust sensor 6, and converting the current dust concentration into an electrical signal and transmitting it to the controller 5 in real time.

[0058] In this embodiment, the current dust concentration is obtained by the dust sensor 6, and the current dust concentration is converted into an electrical signal and transmitted to the controller 5 in real time. The controller 5 then determines whether the current dust concentration is less than the set dust concentration. Based on the judgment result, the controller 5 regulates the opening and closing of the valve 4.

[0059] In this example, the current dust concentration is obtained through the dust sensor 6, and the current dust concentration is converted into an electrical signal and transmitted to the controller 5 in real time. The controller 5 determines whether the current dust concentration is less than the set dust concentration. If the current dust concentration is greater than or equal to the set dust concentration, the controller 5 opens the first air outlet 11 and closes the second air outlet 12 by adjusting the valve 4, so that the gas passes through the air coarse filter 2 and then enters the air filter 3. If the current dust concentration is less than the set dust concentration, the controller 5 opens the second air outlet 12 and closes the first air outlet 11 by adjusting the valve 4.

[0060] In some optional embodiments, when the first air outlet 11 is in an open state, the current dust concentration is less than the set dust concentration, and the duration exceeds the set time, the controller 5 closes the first air outlet 11 and opens the second air outlet 12. If the duration is less than the set time, the first air outlet 11 remains in an open state.

[0061] In this embodiment, when the first air outlet 11 is in an open state, the current dust concentration is less than the set dust concentration, and the duration exceeds the set time, the controller 5 closes the first air outlet 11 and opens the second air outlet 12. If the duration is less than the set time, the first air outlet 11 remains in an open state. Conversely, when the second air outlet 12 is in an open state, the current dust concentration is greater than the set dust concentration, and the duration exceeds the set time, the controller 5 closes the second air outlet 12 and opens the first air outlet 11. If the duration is less than the set time, the second air outlet 12 remains in an open state, thereby preventing a large amount of air that has not passed through the air coarse filter 2 from entering the air filter 3 when the dust concentration is greater than the set dust concentration, thereby ensuring the stability of the system.

[0062] In summary, when the air intake system is installed, the air outlet end of the air intake duct 1 is provided with a first air outlet 11 and a second air outlet 12 that can be opened and closed, the air inlet end of the air filter 3 is provided with a first air inlet 31 and a second air inlet 32, the second air inlet 32 ​​is connected to the second air outlet 12 through a pipeline, and the air coarse filter 2 is arranged on the pipeline between the first air outlet 11 and the first air inlet 31. It is judged whether the current dust concentration is less than the set dust concentration. If the current dust concentration is greater than or equal to the set dust concentration, the first air outlet 11 is opened and the second air outlet 12 is closed, so that the gas passes through the air coarse filter 2 and then enters the air filter 3. If the current dust concentration is less than the set dust concentration, the second air outlet 12 is opened and the first air outlet 11 is closed. In a low-dust environment, the vehicle does not need to use the air coarse filter 2 to reduce the intake resistance, thereby reducing fuel consumption and improving power. This solves the problem in the prior art that air generally needs to be pre-filtered through the air coarse filter before entering the air filter for fine filtration. The dust removal principle of the air coarse filter is generally cyclone centrifugal separation or adsorption and flushing through an oil-containing filter. The air coarse filter has a good pre-filtration effect in a dusty environment, but the pre-filtration effect is not obvious in a low-dust environment. On the contrary, due to the large resistance of the air coarse filter, there is a problem of increased fuel consumption and reduced power in a low-dust state.

[0063] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0064] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0065] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. An air intake system, characterized in that: include: An air inlet (1), the air outlet end of which is provided with a first air outlet (11) and a second air outlet (12) which can be opened and closed; An air filter (3), the air inlet end of which is provided with a first air inlet (31) and a second air inlet (32), wherein the second air inlet (32) is connected to the second air outlet (12) via a pipeline; An air coarse filter (2) is arranged on the pipeline between the first air outlet (11) and the first air inlet (31).

2. An air intake system according to claim 1, characterized in that: A valve (4) is provided at the air outlet end of the air inlet (1); the valve (4) is respectively connected to the first air outlet (11) and the second air outlet (12) and is used to open or close the first air outlet (11) and the second air outlet (12).

3. An air intake system according to claim 2, characterized in that: It also includes a controller (5), which is in signal communication with the valve (4), and the controller (5) is used to open or close the first air outlet (11) and the second air outlet (12) according to the difference between the current dust concentration and the set dust concentration.

4. An air intake system according to claim 3, characterized in that: It also includes a dust sensor (6), which is in signal communication with the controller (5), and the dust sensor (6) is used to obtain the current dust concentration in the environment and transmit the information to the controller (5).

5. An air intake system according to claim 4, characterized in that: The dust sensor (6) is a laser sensor.

6. An air intake system as claimed in claim 2, characterized in that: The valve (4) comprises two valve units, and the two valve units respectively control the first air outlet (11) and the second air outlet (12).

7. A vehicle, characterized in that: Comprising an air intake system as described in any one of claims 1-6.

8. An intake system control method, characterized in that: The method is implemented by using an air intake system as claimed in any one of claims 1 to 6, comprising the following steps: Determine whether the current dust concentration is less than the set dust concentration; If the current dust concentration is greater than or equal to the set dust concentration, the first air outlet (11) is opened and the second air outlet (12) is closed, so that the gas passes through the air coarse filter (2) and then enters the air filter (3); If the current dust concentration is less than the set dust concentration, the second air outlet (12) is opened and the first air outlet (11) is closed.

9. The air intake system control method according to claim 8, characterized in that: Before determining whether the current dust concentration is less than the set dust concentration, the method further includes: obtaining the current dust concentration through a dust sensor (6), and converting the current dust concentration into an electrical signal and transmitting it to the controller (5) in real time.

10. The air intake system control method according to claim 9, characterized in that: When the first air outlet (11) is in an open state, the current dust concentration is less than a set dust concentration, and the duration exceeds a set time, the controller (5) closes the first air outlet (11) and opens the second air outlet (12); if the duration is less than the set time, the first air outlet (11) remains in an open state.

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