Air filter regeneration control method

Abstract

The invention discloses an air filter regeneration control method, which relates to the technical field of air filter regeneration and comprises the following steps: controlling a first pressure sensor to obtain a negative pressure value at an air outlet of an air filter; obtaining an engine state, a regeneration gear switch state and a regeneration purging device state; the control module judges whether the air filter is in a regeneration needing state or not according to the negative pressure value at the air outlet of the air filter; and when the air filter is in a regeneration needing state, the regeneration purging device is turned on or turned off according to the state of the regeneration purging device, the state of the engine and the state of the regeneration gear switch. Maintenance of the air filter can be automatically completed, the filter element function can be rapidly achieved, air inlet resistance is reduced, engine power and fuel economy are improved, the number that a user takes out a filter element for soot blowing regeneration can be reduced, and the burden of the user is relieved.

Description

Technical Field

[0001] The invention relates to the technical field of air filter regeneration, and in particular to an air filter regeneration control method. Background Art

[0002] The air filter is a device that removes dust from the air sucked into the engine. It can effectively reduce the wear of the engine and extend the life of the engine. An air filter in good condition can improve the fuel efficiency, power, and attendance rate of the engine, and obtain better economic benefits. Nowadays, air filters generally use dry filter paper filter elements. Dust will be embedded in the filter paper, increasing the air flow resistance and affecting the engine power. It is necessary to periodically remove the dust from the filter element and perform regenerative maintenance, which affects the attendance rate. Summary of the invention

[0003] The present application provides an air filter regeneration control method to at least solve one technical problem existing in the related art.

[0004] Applied to an air filter regeneration system, the air filter regeneration system comprises: a first pressure sensor arranged at an air outlet of the air filter, a control module connected to the pressure sensor, a regeneration gear switch connected to the control module, and a regeneration purge device connected to the control module and communicated with the inside of the air filter, the control module is also connected to an engine; the air filter regeneration control method comprises:

[0005] Controlling the first pressure sensor to obtain a negative pressure value at an air filter outlet;

[0006] Acquiring the engine status, the regeneration gear switch status and the regeneration purge device status;

[0007] The control module determines whether the air filter is in a state requiring regeneration according to the negative pressure value at the air outlet of the air filter;

[0008] When the air filter is in a state requiring regeneration, the regeneration purge device is turned on or off according to the state of the regeneration purge device, the state of the engine and the state of the regeneration gear switch.

[0009] As an optional implementation, the control module determines whether the air filter is in a state requiring regeneration based on the negative pressure value at the air filter outlet, including: if the negative pressure value at the air filter outlet does not reach the preset pressure value of the outlet, the air filter is in a state not requiring regeneration.

[0010] As an optional implementation, the control module determines whether the air filter is in a state requiring regeneration based on the negative pressure value at the air filter outlet, including: if the negative pressure value at the air filter outlet reaches a preset pressure value of the outlet, the air filter is in a state requiring regeneration.

[0011] As an optional embodiment, when the air filter is in a state requiring regeneration, the regeneration purge device is turned on or off according to the state of the regeneration purge device, the engine state and the state of the regeneration gear switch, including: if the engine is in a flameout state, the regeneration gear switch is turned on, and the regeneration purge device is controlled to turn on to regenerate the air filter; if the engine is not in a flameout state, and / or the regeneration gear switch is turned off, the regeneration purge device is controlled to turn off.

[0012] As an optional embodiment, the regeneration and purge device includes an air tank, and the state of the regeneration and purge device includes: the pressure state of the air tank; the opening or closing according to the state of the regeneration and purge device, the state of the engine and the state of the regeneration gear switch also includes: obtaining the pressure value of the air tank; judging whether the pressure value of the air tank reaches a preset pressure value of the air tank; if the pressure value of the air tank reaches the preset pressure value of the air tank and the engine is in an off state, the regeneration gear switch is opened, and the regeneration and purge device is controlled to open to regenerate the air filter.

[0013] As an optional implementation, it also includes: setting the time period between the end of regeneration and the moment when the negative pressure value at the air outlet of the air filter reaches the preset pressure limit as a preset period; determining the cumulative running time of the engine in the previous preset period; and judging the state of the filter element of the air filter according to the cumulative running time of the engine in the previous preset period.

[0014] As an optional embodiment, the state of the filter element of the air filter is judged based on the cumulative running time of the engine in the previous preset time period and the negative pressure value at the air outlet of the air filter, including: if the cumulative running time of the engine in the previous preset time period is greater than or equal to the preset cumulative time and the negative pressure value at the air outlet of the air filter does not reach the preset pressure value of the air outlet, the filter element is in a state where it can continue to be used; if the cumulative running time of the engine in the previous preset time period is less than the preset cumulative time, the filter element is in a state where it needs to be replaced.

[0015] As an optional embodiment, the air filter regeneration system also includes a vehicle networking module connected to the control module. When the air filter is in a state where regeneration is not required, the vehicle networking module outputs a signal used to indicate that the air filter is in a good state; when the air filter is in a state where regeneration is required, the vehicle networking module outputs a signal used to indicate that the air filter needs to be regenerated.

[0016] As an optional embodiment, the air filter regeneration system also includes a display module connected to the control module; when the air filter is in a state where regeneration is not required, the display module outputs a signal for indicating that the air filter is in a good state; when the air filter is in a state where regeneration is required and the regeneration gear switch is in a closed state, the display module outputs a signal for indicating that the air filter needs to be regenerated and the regeneration gear switch is closed; when the air filter is in a state where regeneration is required and the regeneration gear switch is in an open state, the display module outputs a signal for indicating that the air filter is being regenerated.

[0017] As an optional implementation, it also includes: judging the engine state by the engine speed; if the engine speed is 0, the engine is in an off state.

[0018] In an embodiment of the present application, an air filter regeneration control method is provided, which is applied to an air filter regeneration system, wherein the air filter regeneration system comprises: a first pressure sensor arranged at the air filter outlet, a control module connected to the pressure sensor, a regeneration gear switch connected to the control module, and a regeneration purge device connected to the control module and connected to the inside of the air filter, wherein the control module is also connected to the engine; the air filter regeneration control method comprises: controlling the first pressure sensor to obtain the negative pressure value at the air filter outlet; obtaining the engine state, the regeneration gear switch state, and the regeneration purge device state; the control module determines whether the air filter is in a state requiring regeneration according to the negative pressure value at the air filter outlet; when the air filter is in a state requiring regeneration, the regeneration purge device is turned on or off according to the regeneration purge device state, the engine state, and the regeneration gear switch state. The air filter maintenance can be automatically completed, the filter element function can be quickly realized, the intake resistance can be reduced, the engine power and fuel economy can be improved, and the user can be reduced from taking out the filter element for soot blowing and regeneration, thereby reducing the burden on the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 It is a flow chart of an air filter regeneration control method provided according to an embodiment of the present application.

[0022] Figure 2 It is a structural schematic diagram of an air filter regeneration system provided according to an embodiment of the present application.

[0023] Reference numerals

[0024] 100 air filter; 101 filter element; 102 air filter bottom cover; 103 air filter air inlet; 104 air filter air outlet; 201 gas tank; 202 second pressure sensor; 300 solenoid valve; 500 first pressure sensor; 600 engine; 700 control module; 800 regeneration gear switch; 900 display module; 1000 vehicle networking module. DETAILED DESCRIPTION

[0025] 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 should fall within the scope of protection of the present application.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] like Figure 1-2 As shown, the embodiment of the present application provides an air filter regeneration control method, which is applied to an air filter regeneration system, the air filter regeneration system comprising: a first pressure sensor 500 arranged at an air filter outlet 104, a control module 700 connected to the pressure sensor, a regeneration gear switch 800 connected to the control module 700, and a regeneration purge device connected to the control module 700 and connected to the inside of the air filter 100, the control module 700 is also connected to the engine 600; the air filter regeneration control method comprises:

[0028] S1 controls the first pressure sensor 500 to obtain the negative pressure value at the air filter outlet 104;

[0029] S2 obtains the engine status, the regeneration gear switch status and the regeneration purge device status;

[0030] S3: the control module 700 determines whether the air filter 100 is in a state requiring regeneration according to the negative pressure value at the air filter outlet 104;

[0031] S4: When the air filter 100 is in a state requiring regeneration, the regeneration purge device is turned on or off according to the state of the regeneration purge device, the state of the engine and the state of the regeneration gear switch.

[0032] Specifically, it can automatically complete the maintenance of the air filter 100, quickly realize the function of the filter element 101, reduce the intake resistance, improve the power and fuel economy of the engine 600, and reduce the user's removal of the filter element 101 for dust blowing and regeneration, thereby reducing the user's burden.

[0033] Even when the air filter 100 is in a state where regeneration is required, the control module 700 also determines whether to implement regeneration according to the state of the regeneration purge device, the state of the engine, and the state of the regeneration gear switch. The regeneration effect of the air filter 100 can be ensured by combining the state of the purge device, and the state of the engine can prevent the vehicle from regenerating during driving, thereby ensuring the driving safety of the vehicle; the setting of the regeneration gear switch 800 makes it mainly in the hands of the driver whether the vehicle regenerates, and the vehicle can be prevented from regenerating in unsuitable environments and other conditions.

[0034] As an optional embodiment, the control module 700 determines whether the air filter 100 is in a state requiring regeneration based on the negative pressure value at the air filter outlet 104, including: if the negative pressure value at the air filter outlet 104 does not reach the preset pressure value of the outlet, the air filter 100 is in a state not requiring regeneration.

[0035] As an optional implementation, the control module 700 determines whether the air filter 100 is in a state requiring regeneration based on the negative pressure value at the air filter outlet 104, including: if the negative pressure value at the air filter outlet 104 reaches a preset pressure value of the outlet, the air filter 100 is in a state requiring regeneration.

[0036] Whether the air filter 100 needs to be regenerated is determined by the magnitude relationship between the negative pressure value at the air filter outlet 104 and the preset pressure value at the air filter outlet, thereby improving the intelligence level of the air filter regeneration. If the negative pressure value at the air filter outlet 104 is less than the preset pressure value at the air filter outlet, it indicates that the air filter 100 needs to be purged and regenerated; if the negative pressure value at the air filter outlet 104 is greater than the preset pressure value at the air filter outlet, it indicates that the air filter 100 does not need to be purged and regenerated.

[0037] As an optional embodiment, when the air filter 100 is in a state requiring regeneration, the regeneration purge device is turned on or off according to the state of the regeneration purge device, the engine state and the state of the regeneration gear switch, including: if the engine 600 is in a flameout state, the regeneration gear switch 800 is turned on, and the regeneration purge device is controlled to be turned on to regenerate the air filter 100; if the engine 600 is not in a flameout state, and / or the regeneration gear switch 800 is turned off, the regeneration purge device is controlled to be turned off.

[0038] As an optional embodiment, the regeneration purge device includes an air tank 201, and the state of the regeneration purge device includes: the pressure state of the air tank 201; the opening or closing according to the state of the regeneration purge device, the engine state and the state of the regeneration gear switch also includes: obtaining the pressure value of the air tank 201; judging whether the pressure value of the air tank 201 reaches the preset pressure value of the air tank 201; if the pressure value of the air tank 201 reaches the preset pressure value of the air tank 201 and the engine 600 is in an off state, the regeneration gear switch 800 is opened, and the regeneration purge device is controlled to start to regenerate the air filter 100.

[0039] Specifically, if the pressure value of the gas tank 201 of the regeneration and purge device does not reach the preset pressure value of the gas tank 201, it means that the gas content in the gas tank 201 of the regeneration and purge device is too low to perform normal purge work. By reading the pressure value of the second pressure sensor 202, the gas content in the gas tank 201 is judged and then whether to purge and regenerate is determined. The purge and regeneration effect is guaranteed, and the intelligence level of the purge and regeneration of the air filter 100 is improved.

[0040] As an optional embodiment, it also includes: setting the time period between the end of regeneration and the moment when the negative pressure value at the air filter outlet 104 reaches the preset pressure limit as a preset period; determining the cumulative running time of the engine 600 in the previous preset period; and judging the state of the filter element 101 of the air filter 100 based on the cumulative running time of the engine 600 in the previous preset period.

[0041] As an optional embodiment, the state of the filter element 101 of the air filter 100 is determined based on the cumulative running time of the engine 600 in the previous preset time period and the negative pressure value at the air outlet 104 of the air filter, including: if the cumulative running time of the engine 600 in the previous preset time period is greater than or equal to the preset cumulative time and the negative pressure value at the air outlet 104 of the air filter does not reach the preset pressure value of the air outlet, the filter element 101 of the air filter 100 is in a state where it can continue to be used; if the cumulative running time of the engine 600 in the previous preset time period is less than the preset cumulative time, the filter element 101 of the air filter 100 is in a state where it needs to be replaced.

[0042] As an optional embodiment, the air filter regeneration system also includes a vehicle networking module 1000, which is connected to the control module 700. When the air filter 100 is in a state where regeneration is not required, the vehicle networking module 1000 outputs a signal used to indicate that the air filter 100 is in a good state; when the air filter 100 is in a state where regeneration is required, the vehicle networking module 1000 outputs a signal used to indicate that the air filter 100 needs to be regenerated.

[0043] As an optional embodiment, the air filter regeneration system also includes a display module 900, which is connected to the control module 700; when the air filter 100 is in a state where regeneration is not required, the display module 900 outputs a signal for indicating that the air filter 100 is in a good state; when the air filter 100 is in a state where regeneration is required and the regeneration gear switch 800 is in a closed state, the display module 900 outputs a signal for indicating that the air filter 100 needs to be regenerated and the regeneration gear switch 800 is closed; when the air filter 100 is in a state where regeneration is required and the regeneration gear switch 800 is in an open state, the display module 900 outputs a signal for indicating that the air filter 100 is being regenerated.

[0044] As an optional implementation, it also includes: judging the engine state by the engine speed of the engine 600; if the engine speed of the engine 600 is 0, the engine 600 is in an off state.

[0045] Specifically, as an optional and specific implementation, air enters the air filter 100 through the air filter inlet 103, and after being filtered by the filter element 101, clean air flows out from the air filter outlet 104. As dust accumulates on the filter element 101, the pressure value at the air filter outlet 104 increases, and the first pressure sensor 500 transmits the negative pressure value to the control module 700. The control module 700 integrates the working state of the engine 600 and the position of the regeneration gear switch 800, and outputs relevant signals to the display module 900 and the vehicle networking module 1000 according to the strategy, and opens the solenoid valve 300, and uses the gas in the gas tank 201 to purge the dust on the filter element 101, so that the filter element 101 meets the use requirements. The control module 700 determines whether the gas pressure in the gas tank 201 meets the regeneration of the air filter 100 through the signal input by the second pressure sensor 202. The regeneration gear switch 800 has two gear states: "off" and "regeneration". When the gear switch is in the closed gear, even if the filter element 101 needs to be regenerated, only a reminder is output, and the solenoid valve 300 is not opened. When the regeneration gear switch 800 is in the regeneration gear, the control module 700 opens the solenoid valve 300 to regenerate the filter element 101 by judging that the conditions are met. The control module 700 judges whether the engine 600 is in a running or flameout state through the speed signal input by the engine 600.

[0046] When the regeneration gear switch 800 is in the off state or in the regeneration state, if the minimum pressure value of the first pressure sensor 500 during the operation of the engine 600 is ≥ the preset limit, and the cumulative running time of the engine 600 in the previous preset time period is ≥ the preset limit, the vehicle networking module 1000 outputs a signal that the air filter 100 is in good condition.

[0047] When the regeneration gear switch 800 is in the off state, if the minimum pressure value of the first pressure sensor 500 during the operation of the engine 600 is less than the preset limit, and during the previous preset period, the cumulative running time of the engine 600 is ≥ the preset limit, and the pressure of the air tank 201 is ≥ the preset value, the display module 900 outputs a signal that the air filter 100 needs to be regenerated. At this time, the regeneration purge device is turned off, and the driver can find a suitable place to shut down and regenerate; at the same time, the vehicle networking module 1000 outputs a signal that the air filter 100 needs to be regenerated.

[0048] When the regeneration gear switch 800 is in the off state, if the minimum pressure value of the first pressure sensor 500 during the operation of the engine 600 is less than the preset limit, the cumulative running time of the engine 600 in the previous preset time period is ≥ the preset limit, and the pressure of the air tank 201 is less than the preset value, the display module 900 outputs a signal that the air filter 100 needs to be regenerated and the air pressure in the air tank 201 is insufficient, and at the same time, the vehicle networking module 1000: the air filter 100 needs to be regenerated.

[0049] When the regeneration gear switch 800 is in the off state or in the regeneration state, if the minimum pressure value of the first pressure sensor 500 during the operation of the engine 600 is less than the preset limit, and the cumulative running time of the engine 600 in the previous preset time period is less than the preset limit, the display module 900 outputs a signal that the filter element 101 needs to be replaced, and the vehicle networking module 1000 outputs a signal that the filter element 101 needs to be replaced.

[0050] When the regeneration gear switch 800 is in the regeneration state, the minimum pressure value of the first pressure sensor 500 during the operation of the engine 600 is less than the preset limit value, within the previous preset period, the cumulative running time of the engine 600 is ≥ the preset limit value, the pressure of the air tank 201 is ≥ the preset value, the display module 900 outputs that the air filter 100 needs to be regenerated, and the vehicle networking module 1000 outputs that the air filter 100 needs to be regenerated.

[0051] When the regeneration gear switch 800 is in the regeneration state, the minimum pressure value of the first pressure sensor 500 during the operation of the engine 600 is less than the preset limit; during the previous preset period, the cumulative running time of the engine 600 is ≥ the preset limit, the pressure of the air tank 201 is less than the preset value, the display module 900 outputs that the air filter 100 needs to be regenerated and the air pressure in the air tank 201 is insufficient; the vehicle networking module 1000 outputs that the air filter 100 needs to be regenerated.

[0052] When the regeneration gear switch 800 is in the off state, the minimum pressure value of the first pressure sensor 500 during the operation of the engine 600 is less than the preset limit value, during the previous preset period, the cumulative running time of the engine 600 is ≥ the preset limit value, the pressure of the air tank 201 is ≥ the preset value and the engine 600 is turned off, the display module 900 outputs that the air filter 100 needs to be regenerated, the regeneration function is turned off, the air pressure in the air tank 201 is insufficient, and the vehicle networking module 1000 outputs that the air filter 100 needs to be regenerated.

[0053] When the regeneration gear switch 800 is in the off state, the minimum pressure value of the first pressure sensor 500 during the operation of the engine 600 is less than the preset limit, and during the previous preset period, the cumulative running time of the engine 600 is ≥ the preset limit, the pressure of the air tank 201 is less than the preset value, the engine 600 is turned off, and the display module 900 outputs: the air filter 100 needs to be regenerated, the regeneration function is turned off, and the air pressure in the air tank 201 is insufficient; the vehicle networking module 1000 outputs that the air filter 100 needs to be regenerated.

[0054] When the regeneration gear switch 800 is in the regeneration state, the minimum pressure value of the first pressure sensor 500 during the operation of the engine 600 is less than the preset limit value, and within the previous preset period, the cumulative running time of the engine 600 is ≥ the preset limit value, the pressure of the air tank 201 is ≥ the preset value, the engine 600 is turned off, and the display module 900 outputs: the air filter 100 is being regenerated; the vehicle networking module 1000 outputs a signal that the air filter 100 is being regenerated.

[0055] When the regeneration gear switch 800 is in the regeneration state, the minimum pressure value of the pressure sensor K of 500 during the operation of the engine 600 is less than the preset limit, and during the previous preset period, the cumulative running time of the engine 600 is ≥ the preset limit, the pressure of the air tank 201 is less than the preset value, the engine 600 is turned off, the display module 900 outputs that the air filter 100 needs to be regenerated, the air pressure in the air tank 201 is insufficient, and the vehicle networking module 1000 outputs that the air filter 100 needs to be regenerated.

[0056] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0057] If the integrated units in the above embodiments are implemented in the form of software functional units and sold or used as independent products, they can be stored in the above computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling one or more electronic devices (such as personal computers, servers, or network devices) to perform all or part of the steps of the methods described in the various embodiments of the present application.

[0058] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0059] In the several embodiments provided in the present application, it should be understood that the disclosed client can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0060] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution provided in this embodiment.

[0061] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0062] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0063] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. An air filter regeneration control method, characterized in that: Applied to an air filter regeneration system, the air filter regeneration system comprises: a first pressure sensor arranged at an air outlet of the air filter, a control module connected to the pressure sensor, a regeneration gear switch connected to the control module, and a regeneration purge device connected to the control module and communicated with the inside of the air filter, the control module is also connected to an engine; the air filter regeneration control method comprises: Controlling the first pressure sensor to obtain a negative pressure value at an air filter outlet; Acquiring the engine status, the regeneration gear switch status and the regeneration purge device status; The control module determines whether the air filter is in a state requiring regeneration according to the negative pressure value at the air outlet of the air filter; When the air filter is in a state requiring regeneration, the regeneration purge device is turned on or off according to the state of the regeneration purge device, the state of the engine and the state of the regeneration gear switch.

2. The air filter regeneration control method according to claim 1, characterized in that: The control module determines whether the air filter is in a state requiring regeneration according to the negative pressure value at the air filter outlet, including: If the negative pressure value at the air filter outlet does not reach the preset pressure value of the air filter outlet, the air filter is in a state where regeneration is not required.

3. The air filter regeneration control method according to claim 1, characterized in that: The control module determines whether the air filter is in a state requiring regeneration according to the negative pressure value at the air filter outlet, including: If the negative pressure value at the air filter outlet reaches a preset pressure value at the air filter outlet, the air filter is in a state of requiring regeneration.

4. The air filter regeneration control method according to claim 1, characterized in that: When the air filter is in a state requiring regeneration, the regeneration purge device is turned on or off according to the state of the regeneration purge device, the state of the engine and the state of the regeneration gear switch, including: If the engine is in a flameout state, the regeneration gear switch is turned on, and the regeneration purge device is controlled to start regenerating the air filter; If the engine is not in a flameout state, and / or the regeneration gear switch is turned off, the regeneration purge device is controlled to be turned off.

5. The air filter regeneration control method according to claim 4, characterized in that: The regeneration purge device includes an air tank, and the state of the regeneration purge device includes: the pressure state of the air tank; the opening or closing according to the state of the regeneration purge device, the state of the engine and the state of the regeneration gear switch also includes: Obtaining the pressure value of the gas storage tank; Determine whether the pressure value of the gas storage tank reaches a preset pressure value of the gas storage tank; If the pressure value of the air tank reaches the preset pressure value of the air tank and the engine is in a flameout state, the regeneration gear switch is turned on to control the regeneration purge device to start regenerating the air filter.

6. The air filter regeneration control method according to claim 1, characterized in that: Also includes: The time period between the end of regeneration and the time when the negative pressure value at the air filter outlet reaches the preset pressure limit is set as a preset time period; Determining the cumulative running time of the engine during the previous preset time period; The state of the filter element of the air filter is determined according to the accumulated running time of the engine in the previous preset time period.

7. The air filter regeneration control method according to claim 6, characterized in that: The step of judging the state of the filter element of the air filter according to the accumulated running time of the engine in the previous preset period and the negative pressure value at the air filter outlet comprises: If the cumulative running time of the engine in the previous preset time period is greater than or equal to the preset cumulative time and the negative pressure value at the air filter outlet does not reach the preset pressure value of the air filter outlet, the filter element of the air filter is in a state of continued use; If the cumulative running time of the engine in the previous preset time period is less than the preset cumulative time, the filter element of the air filter is in a state of needing to be replaced.

8. The air filter regeneration control method according to claim 1, characterized in that: The air filter regeneration system also includes a vehicle networking module connected to the control module. When the air filter is in a state where regeneration is not required, the vehicle networking module outputs a signal indicating that the air filter is in a good state; when the air filter is in a state where regeneration is required, the vehicle networking module outputs a signal indicating that the air filter needs to be regenerated.

9. The air filter regeneration control method according to claim 1, characterized in that: The air filter regeneration system further includes a display module connected to the control module; when the air filter is in a state where regeneration is not required, the display module outputs a signal indicating that the air filter is in a good state; when the air filter is in a state where regeneration is required and the regeneration gear switch is in a closed state, the display module outputs a signal indicating that the air filter needs to be regenerated and the regeneration gear switch is closed; When the air filter is in a state requiring regeneration and the regeneration gear switch is in an on state, the display module outputs a signal for indicating that the air filter is being regenerated.

10. The air filter regeneration control method according to claim 4, characterized in that: Also includes: Judging the engine status by the engine speed; If the engine speed is 0, the engine is in the off state.

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