CN114215666A - Self-cleaning control method and device and agricultural machine - Google Patents
Self-cleaning control method and device and agricultural machine Download PDFInfo
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- CN114215666A CN114215666A CN202111229332.3A CN202111229332A CN114215666A CN 114215666 A CN114215666 A CN 114215666A CN 202111229332 A CN202111229332 A CN 202111229332A CN 114215666 A CN114215666 A CN 114215666A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 121
- 238000000034 method Methods 0.000 title claims abstract description 51
- 238000002485 combustion reaction Methods 0.000 claims abstract description 88
- 230000002441 reversible effect Effects 0.000 claims abstract description 45
- 238000007664 blowing Methods 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 description 13
- 239000000428 dust Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/08—Air cleaners with means for removing dust, particles or liquids from cleaners; with means for indicating clogging; with by-pass means; Regeneration of cleaners
- F02M35/086—Dust removal by flushing, blasting, pulsating or aspirating flow, washing or the like; Mechanical dust removal, e.g. by using scrapers
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Abstract
The embodiment of the invention provides a self-cleaning control method and device and agricultural machinery, and relates to the technical field of agricultural machinery. The self-cleaning control method comprises the steps of obtaining an air inlet pressure value entering the internal combustion engine after passing through the filter element structure; acquiring the gas storage pressure value of a gas storage cylinder; acquiring the running state of the internal combustion engine; judging whether the reverse cleaning condition of the filter element structure is met or not according to the air inlet pressure value, the air storage pressure value and the running state; if the reverse cleaning condition of the filter element structure is met, the control valve is controlled to be opened, so that the gas storage bottle blows air to the filter element structure through the gas outlet, and the filter element structure is cleaned. Whether the control valve is opened or not is judged through the air inlet pressure value, the air storage pressure value and the running state of the internal combustion engine, the control precision of cleaning of the filter element structure can be improved, the cleaning effect of the filter element structure is improved, and therefore the service life of the filter element structure is prolonged.
Description
Technical Field
The invention relates to the technical field of agricultural machinery, in particular to a self-cleaning control method and device and agricultural machinery.
Background
Because the dust and the raise dust content of the operation environment are high, the dust and the dust are adsorbed and filtered on the surface of the air filter in the long-term operation of the air filter in the environments of farmlands, construction sites, mining areas, roads and the like, and the moisture in the humid air is mixed, the filtering passing efficiency of the air filter is gradually poor, the air inlet efficiency of the internal combustion engine is gradually reduced, the power is directly reduced, and the economical efficiency and the emission are deteriorated.
If the air filter is not cleaned in time, the air filter structure is blocked and cannot work normally, and the service life of the air filter structure is influenced.
Disclosure of Invention
The invention aims to provide a self-cleaning control method and device and agricultural machinery, which can automatically clean a filter element structure under the condition that the filter element structure is blocked, so that the service life of the filter element structure is prolonged.
Embodiments of the invention may be implemented as follows:
in a first aspect, an embodiment of the present invention provides a self-cleaning control method, which is applied to an agricultural machine, where the agricultural machine includes an internal combustion engine, a filter element structure, a control valve, and a gas cylinder, an air outlet of the filter element structure is connected to the internal combustion engine and the gas cylinder, respectively, the control valve is disposed between the filter element structure and the gas cylinder, and the self-cleaning control method includes:
acquiring an intake pressure value entering the internal combustion engine after passing through the filter element structure;
acquiring the gas storage pressure value of the gas storage cylinder;
acquiring an operating state of the internal combustion engine;
judging whether the reverse cleaning condition of the filter element structure is met or not according to the air inlet pressure value, the air storage pressure value and the operation state;
and if the reverse cleaning condition of the filter element structure is met, controlling the control valve to open, so that the gas storage bottle blows air to the filter element structure through the gas outlet to clean the filter element structure.
In an optional embodiment of the present invention, the step of determining whether a reverse cleaning condition of the filter element structure is met according to the intake pressure value, the gas storage pressure value, and the operating state includes:
judging whether the air inlet pressure value is greater than or equal to a first preset pressure value and less than a second preset pressure value, the air storage pressure value is greater than or equal to a third preset pressure value, and the internal combustion engine is in a shutdown state;
and if the air inlet pressure value is greater than or equal to the first preset pressure value and less than the second preset pressure value, the air storage pressure value is greater than or equal to the third preset pressure value and the internal combustion engine is in a shutdown state, judging that the reverse cleaning condition of the filter element structure is met.
In an optional embodiment of the present invention, the step of determining whether the intake pressure value is greater than or equal to a first preset pressure value and less than a second preset pressure value, the gas storage pressure value is greater than or equal to a third preset pressure value, and the internal combustion engine is in a shutdown state includes:
judging whether the intake pressure value is greater than or equal to the first preset pressure value and smaller than the second preset pressure value;
if the air inlet pressure value is greater than or equal to the first preset pressure value and smaller than the second preset pressure value, judging whether the air storage pressure value is greater than or equal to a third preset pressure value;
if the gas storage pressure value is larger than or equal to the third preset pressure value, judging whether the internal combustion engine is in a stop state;
and if the internal combustion engine is in a stop state, judging that the reverse cleaning condition of the filter element structure is met.
In an optional embodiment of the present invention, before the step of controlling the control valve to open to blow back the gas cylinder to the filter element structure to clean the filter element structure, the self-cleaning control method further includes:
under the condition of meeting the reverse cleaning condition of the filter element structure, timing is started to obtain starting time;
judging whether the starting time is greater than or equal to a first preset time or not;
and if the starting time is greater than or equal to the first preset time, controlling the control valve to be opened to enable the air storage bottle to blow back the filter element structure so as to clean the filter element structure.
In an optional embodiment of the present invention, after the step of determining whether the cleaning condition of the filter element structure is met according to the intake pressure value, the air storage pressure value, and the operating state, the self-cleaning control method further includes:
and if the air inlet pressure value is greater than or equal to a second preset pressure value, sending an alarm signal.
In an optional embodiment of the present invention, the step of determining whether the cleaning condition of the filter element structure is met according to the intake pressure value, the gas storage pressure value, and the operating state further includes:
and if the gas storage pressure value is smaller than the third preset pressure value, controlling an inflating pump connected with the gas storage cylinder to inflate the gas storage cylinder until the gas storage pressure value is larger than or equal to the third preset pressure value.
In an optional embodiment of the present invention, after the step of determining whether the cleaning condition of the filter element structure is met according to the intake pressure value, the air storage pressure value, and the operating state, the self-cleaning control method further includes:
acquiring a real-time rotating speed of the internal combustion engine;
judging whether the real-time rotating speed is equal to zero or not;
if the real-time rotating speed is equal to zero, timing is started to obtain stop time;
judging whether the stop time is greater than or equal to a second preset time or not;
and if the stop time is greater than or equal to the second preset time, judging that the internal combustion engine is in a stop state.
In an alternative embodiment of the present invention, after the step of controlling the control valve to open to enable the gas cylinder to blow back the filter element structure to clean the filter element structure, the self-cleaning control method further includes:
acquiring a real-time pressure value of the gas storage cylinder;
judging whether the real-time pressure value is smaller than or equal to a fourth preset pressure value or not;
and if the real-time pressure value is less than or equal to a fourth preset pressure value, controlling the control valve to close.
In an alternative embodiment of the present invention, after the step of controlling the control valve to open to enable the gas cylinder to blow back the filter element structure to clean the filter element structure, the self-cleaning control method further includes:
timing the opening time of the control valve to obtain the opening time;
judging whether the starting time is greater than or equal to a third preset time or not;
and if the opening time is greater than or equal to the third preset time, controlling the control valve to close.
In a second aspect, an embodiment of the present invention provides a self-cleaning control device, which is applied to an agricultural machine, where the agricultural machine includes an internal combustion engine, a filter element structure, a control valve, and a gas cylinder, an air outlet of the filter element structure is connected to the internal combustion engine and the gas cylinder, respectively, the control valve is disposed between the filter element structure and the gas cylinder, and the self-cleaning control device includes:
the first acquisition module is used for acquiring an intake pressure value entering the internal combustion engine after passing through the filter element structure;
the second acquisition module is used for acquiring the gas storage pressure value of the gas storage cylinder;
a third acquisition module for acquiring an operation state of the internal combustion engine;
the judging module is used for judging whether the reverse cleaning condition of the filter element structure is met or not according to the air inlet pressure value, the air storage pressure value and the running state;
and the control module is used for controlling the control valve to be opened if the reverse cleaning adjustment of the filter element structure is loaded, and blowing air to the filter element structure through the air outlet so as to clean the filter element structure.
In a third aspect, an embodiment of the present invention provides an agricultural machine, including a memory and a processor, where the memory is used for storing computer instructions, and the processor is used for executing the computer instructions to implement the self-cleaning control method provided in the first aspect.
In an optional embodiment of the invention, the agricultural machine further comprises an internal combustion engine, a filter element structure, a control valve and an air storage cylinder, wherein an air outlet of the filter element structure is respectively connected with the internal combustion engine and the air storage cylinder, and the control valve is arranged between the filter element structure and the air storage cylinder.
The embodiment of the invention has the following beneficial effects: the self-cleaning control method comprises the steps of obtaining an air inlet pressure value entering the internal combustion engine after passing through the filter element structure; acquiring the gas storage pressure value of a gas storage cylinder; acquiring the running state of the internal combustion engine; judging whether the reverse cleaning condition of the filter element structure is met or not according to the air inlet pressure value, the air storage pressure value and the running state; if the reverse cleaning condition of the filter element structure is met, the control valve is controlled to be opened, so that the gas storage cylinder blowback filter element structure is enabled to clean the filter element structure. Whether the control valve is opened or not is judged through the air inlet pressure value, the air storage pressure value and the running state of the internal combustion engine, the control precision of cleaning of the filter element structure can be improved, the cleaning effect of the filter element structure is improved, and therefore the service life of the filter element structure is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an agricultural machine provided in an embodiment of the present invention.
Fig. 2 is a flowchart of a self-cleaning control method according to an embodiment of the present invention.
Fig. 3 is a flowchart illustrating sub-steps of step S400 of the self-cleaning control method according to an embodiment of the present invention.
Fig. 4 is a flowchart of the sub-steps of step S430 of the self-cleaning control method according to an embodiment of the present invention.
Fig. 5 is a flowchart of steps S610 to S630 of the self-cleaning control method according to the embodiment of the present invention.
Fig. 6 is a flowchart of steps S710 to S730 of a self-cleaning control method according to an embodiment of the present invention.
Fig. 7 is a block diagram of a self-cleaning control device according to an embodiment of the present invention.
Fig. 8 is a block diagram of an agricultural machine according to an embodiment of the present invention.
Icon: 10-agricultural machinery; 11-an internal combustion engine; 12-a filter element arrangement; 13-a control valve; 14-gas cylinder; 15-air outlet; 16-an air pump; 17-a safety valve; 18-a memory; 19-a processor; 20-self-cleaning control means; 21-a first acquisition module; 22-a second acquisition module; 23-a third acquisition module; 24-a decision module; 25-control module.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Examples
Referring to fig. 1, the present embodiment provides a self-cleaning control method and device, which are applied to an agricultural machine 10, and are mainly used for cleaning a filter element structure 12 of the agricultural machine 10, and the self-cleaning filter element structure 12 can be automatically cleaned when the filter element structure 12 is clogged, so that the service life of the filter element structure 12 is prolonged.
In this embodiment, the agricultural machine 10 includes an internal combustion engine 11, a filter element structure 12, a control valve 13, and an air tank 14, an air outlet of the filter element structure 12 is connected to the internal combustion engine 11 and the air tank 14, respectively, and the control valve 13 is disposed between the filter element structure 12 and the air tank 14. In the working process of the internal combustion engine 11, outside air enters the filter element structure 12 and then enters the internal combustion engine 11 from the air outlet, so that the normal work of the internal combustion engine 11 is ensured. Under the condition that the filter element structure 12 is blocked, when the internal combustion engine 11 is in a stop state, the filter element structure 12 is blown back through the air storage bottle 14, namely air is sucked from the air outlet 15 of the filter element structure 12, and therefore the purpose of cleaning the filter element structure 12 is achieved.
Referring to fig. 2, the self-cleaning control method provided in the embodiment of the present invention includes the following specific steps:
step S100, an intake pressure value of the intake air entering the internal combustion engine 11 after passing through the filter element structure 12 is acquired.
In this embodiment, the outside air enters the internal combustion engine 11 after being filtered by the filter element structure 12, and is used for the operation of the internal combustion engine 11, so that the impurities in the air are attached to the side of the filter element structure 12 away from the internal combustion engine 11, and the blockage condition of the filter element structure 12 can be determined by detecting the pressure value of the side of the filter element structure 12 close to the internal combustion engine 11.
The intake pressure value refers to a pressure value of the side of the filter element structure 12 close to the internal combustion engine 11, and the blockage condition of the filter element structure 12 can be judged according to the intake pressure value.
Step S200, a gas storage pressure value of the gas storage cylinder 14 is obtained.
In this embodiment, the gas storage pressure value is the air pressure value in the gas bomb 14, and the condition that can reach reverse clean filter core structure 12 can be judged through obtaining the gas storage pressure value in the gas bomb 14, if the gas storage pressure value in the gas bomb 14 is less, is carrying out reverse clean in-process to filter core structure 12, probably can't blow off the impurity of adhering to on filter core structure 12. Therefore, it is necessary to ensure that the air storage pressure reaches a pressure at which the filter element structure 12 can be cleaned.
In step S300, the operating state of the internal combustion engine 11 is acquired.
In the present embodiment, the operating state of the internal combustion engine 11 can be classified into two types, one being an operating state and the other being a stopped state. The internal combustion engine 11 needs to continuously intake air in the operating state, and if the control valve 13 is opened in the operating state, the gas in the gas storage cylinder 14 may enter the internal combustion engine 11 under the action of the internal combustion engine 11, so that the purpose of reversely cleaning the filter element structure 12 cannot be achieved.
Step S400, determining whether the reverse cleaning condition of the filter element structure 12 is satisfied according to the air intake pressure value, the air storage pressure value, and the operation state.
Referring to fig. 3, step S400 may include step S410, step S420, step S430, step S440, step S450 and step S460.
In this embodiment, whether the filter element structure 12 is blocked or not is judged according to the air inlet pressure value, the air storage pressure value and the motion state, and whether the condition of reversely cleaning the filter element structure 12 is achieved or not can reduce the error operation of cleaning the filter element structure 12.
Step S410, determining whether the intake pressure value is greater than or equal to a first preset pressure value and less than a second preset pressure value.
In this embodiment, it is first determined whether the intake pressure value is greater than or equal to the first preset pressure value and less than the second preset pressure value, and the relationship between the intake pressure value and the first preset pressure value and the second preset pressure value is determined, so as to determine the blockage condition of the filter element structure 12, and perform the same operation according to the blockage condition of the filter element structure 12.
If the filter cartridge arrangement 12 is clogged with a relatively high degree of clogging, the filter cartridge arrangement 12 may be cleaned by reverse cleaning, and if the filter cartridge arrangement 12 is clogged with a particularly high degree of clogging and the filter cartridge arrangement 12 cannot be cleaned by reverse cleaning, the filter cartridge arrangement 12 may need to be replaced.
The first preset pressure value is 3.5Kpa, and the second preset pressure value is 8 Kpa.
In step S420, if the intake pressure value is greater than or equal to the first preset pressure value and less than the second preset pressure value, it is determined whether the air storage pressure value is greater than or equal to a third preset pressure value.
In this embodiment, if the intake pressure value is greater than or equal to the first preset pressure value and less than the second preset pressure value, it indicates that the current blockage situation of the filter element structure 12 is relatively serious, and it is necessary to perform reverse cleaning to remove the impurities attached to the filter element structure 12.
Further, whether the gas storage pressure value can meet the condition of reaching reverse cleaning is judged through the relation between the gas storage pressure value and a third preset pressure value, if the gas storage pressure value is smaller than the third preset pressure value, it is indicated that the gas storage pressure value in the current gas storage bottle 14 is too small, and if the filter element structure 12 is cleaned reversely at the moment, impurities attached to the filter element structure 12 cannot be blown off probably due to the fact that the gas storage pressure value is too small. Under the condition that the gas storage pressure value is greater than or equal to the third preset pressure value, it is indicated that the gas storage pressure value of the current gas storage cylinder 14 is relatively large, if the filter element structure 12 is reversely cleaned, impurities attached to the filter element structure 12 can be blown off, and the purpose of cleaning the filter element structure 12 is achieved.
In step S430, if the air storage pressure value is greater than or equal to the third preset pressure value, it is determined whether the internal combustion engine 11 is in a shutdown state.
In this embodiment, under the condition that the intake pressure value is greater than or equal to the first preset pressure value and less than the second preset pressure value, and the gas storage pressure value is greater than or equal to the third preset pressure value, the operation state of the internal combustion engine 11 needs to be further determined, and whether the internal combustion engine 11 is in the shutdown state is determined, if the control valve 13 is opened in the operating state, the gas in the gas storage cylinder 14 may enter the internal combustion engine 11 under the action of the internal combustion engine 11, and the purpose of reversely cleaning the filter element structure 12 cannot be achieved.
The third preset pressure value is 800 Kpa.
Referring to fig. 4, step S430 may include step S431, step S432, step S433, step S434 and step S435.
In step S431, the real-time rotation speed of the internal combustion engine 11 is acquired.
In the present embodiment, the rotation speed of the internal combustion engine 11 is acquired in real time, and the operating state of the internal combustion engine 11 can be determined from the real-time rotation speed of the internal combustion engine 11.
Step S432, determine whether the real-time rotation speed is equal to zero.
In the present embodiment, if the real-time rotation speed is equal to zero, the internal combustion engine 11 may be in a stopped state, and it is determined whether the real-time rotation speed is equal to zero, and it may be determined whether the internal combustion engine 11 is in a stopped state.
And step S433, if the real-time rotating speed is equal to zero, timing is started to obtain the stop time.
In this embodiment, after the real-time rotation speed is equal to zero, timing is started to obtain the stop time. The malfunction due to the intermittent stop of the internal combustion engine 11 is reduced.
In step S434, it is determined whether the stop time is greater than or equal to a second preset time.
The second preset time is generally set to 5s, that is, when the stop time of the internal combustion engine 11 is less than 5s, the internal combustion engine 11 cannot be considered to be currently stopped. The internal combustion engine 11 may be considered to be in the stopped state when the stop time is greater than or equal to the second preset time.
In step S435, if the stop time is greater than or equal to the second preset time, it is determined that the internal combustion engine 11 is in the stop state.
In the present embodiment, if the stop time is greater than or equal to the second preset time, the operation of the intermittent stop of the internal combustion engine 11 may be excluded, and the internal combustion engine 11 may be considered to be shut down and stopped.
Referring to fig. 3, in step S440, if the internal combustion engine 11 is in a shutdown state, it is determined that the reverse cleaning condition of the filter element structure 12 is met.
In this embodiment, if the intake pressure value is greater than or equal to the first preset pressure value and less than the second preset pressure value, the gas storage pressure value is greater than or equal to the third preset pressure value, and the internal combustion engine 11 is in the shutdown state, it is determined that the reverse cleaning condition of the filter element structure 12 is satisfied.
It should be noted that, in the present embodiment, the steps S410, S420 and S430 are performed sequentially, that is, after the intake pressure value satisfies the condition, it is determined whether the air storage pressure value satisfies the condition, and after the air storage pressure value satisfies the condition, it is determined whether the internal combustion engine 11 is stopped.
However, there may be no sequence among the steps S410, S420, and S430, and it may be determined whether the intake pressure value meets the condition first, or whether the gas storage pressure value meets the condition first, or whether the internal combustion engine 11 is in the shutdown state first, and it is determined that the reverse cleaning condition of the filter element structure 12 is met as long as the intake pressure value is greater than or equal to the first preset pressure value and less than the second preset pressure value, the gas storage pressure value is greater than or equal to the third preset pressure value, and the internal combustion engine 11 is in the shutdown state.
In the present embodiment, in order to improve the accuracy of the reverse cleaning of the filter element structure 12, under the condition that the reverse cleaning condition of the filter element structure 12 is met, the timing is started to obtain the starting time, and the situation that the control valve 13 is opened when the starting condition is instantaneously met, so that frequent starting is caused, can be reduced. Thereby improving the accuracy of control over reverse cleaning of the filter element arrangement 12.
After the conditions described above have met the conditions for reverse cleaning of the cartridge arrangement 12, a timer is started, which results in an activation time at which the control valve 13 can be activated. Whether the starting time is greater than or equal to a first preset time is judged, and if the starting time is greater than or equal to the first preset time, the step S500 is executed.
In this embodiment, after the start time is obtained, whether the first preset time is greater than or equal to the first preset time is further determined, and if the first preset time is greater than or equal to the first preset time, it indicates that the intake pressure value, the stored air pressure value, and the operation state of the internal combustion engine 11 all reach a relatively stable state, and the filter element structure 12 can be reversely cleaned, and then step S500 can be executed.
And step S450, if the air inlet pressure value is greater than or equal to a second preset pressure value, sending an alarm signal.
In this embodiment, if the intake pressure value is greater than or equal to the second preset pressure value, it indicates that the current blockage situation of the filter element structure 12 is serious, and the impurities attached to the filter element structure 12 cannot be removed only by using the reverse cleaning method, and then an alarm signal is sent to provide the requirement for the operator to replace the filter element structure 12.
The alarm signal may be an optical signal, an acoustic signal, or a voice signal.
In this embodiment, the step of judging whether to accord with the cleaning condition of the filter element structure 12 according to the air inlet pressure value, the air storage pressure value and the operation state further includes:
in step S460, if the gas storage pressure value is smaller than the third preset pressure value, the inflation pump 16 connected to the gas storage cylinder 14 is controlled to inflate the gas storage cylinder 14 until the gas storage pressure value is greater than or equal to the third preset pressure value.
In this embodiment, if the gas storage pressure value is smaller than the third preset pressure value, it indicates that the gas storage pressure value of the current gas storage cylinder 14 is relatively small, and the purpose of cleaning the filter element structure 12 cannot be achieved, and the gas storage cylinder 14 needs to be inflated, so that the gas storage pressure value can reach the third preset pressure value.
And under the condition that the gas storage pressure value is smaller than the third preset pressure value, controlling the inflating pump 16 to inflate the gas storage bottle 14, and continuously monitoring the gas storage pressure value in the inflating process until the gas storage pressure value reaches the third preset pressure value.
Further, can set up relief valve 17 on gas bomb 14, if control valve 13 breaks down, can control relief valve 17 and open to guarantee that the pressure value in the gas bomb 14 can not exceed the upper limit value, guaranteed the security of gas bomb 14.
Referring to fig. 2, in step S500, if the reverse cleaning condition of the filter element structure 12 is met, the control valve 13 is controlled to open, so that the air cylinder 14 blows air into the filter element structure 12 through the outlet to clean the filter element structure 12.
In this embodiment, after the reverse cleaning condition of the filter element structure 12 is satisfied, the control valve 13 is controlled to open, so that the gas in the gas bomb 14 enters the filter element structure 12 through the gas outlet of the filter element structure 12, and the filter element structure 12 is subjected to back flushing, so that the impurities attached to the filter element structure 12 fall off from the filter element structure 12, thereby achieving the purpose of cleaning the filter element.
Referring to fig. 5, in step S610, a real-time pressure value of the gas cylinder 14 is obtained.
In this embodiment, after step S500 is performed, a real-time pressure value in the gas cylinder 14 is obtained in real time, the pressure value in the gas cylinder 14 is monitored in real time, and in the process of reversely cleaning the filter element structure 12, if the pressure value in the gas cylinder 14 is too small, the pressure of the gas entering the filter element structure 12 is small, and the impurities attached to the filter element structure 12 cannot be blown off.
In step S620, it is determined whether the real-time pressure value is less than or equal to a fourth preset pressure value.
In the present embodiment, the fourth preset pressure value represents a critical pressure value at which the impurities on the filter element structure 12 can be blown off, and if the real-time pressure value is greater than the fourth preset pressure value, the fourth preset pressure value represents that the gas blown off from the gas bomb 14 can blow off the impurities attached to the filter element structure 12. If the real-time pressure value is less than or equal to the fourth preset pressure value, it indicates that the gas blown out from the gas cylinder 14 cannot blow off the impurities attached to the filter element structure 12.
In step S630, if the real-time pressure value is less than or equal to the fourth preset pressure value, the control valve 13 is controlled to close.
In this embodiment, if the real-time pressure value is less than or equal to the fourth preset pressure value, the pressure value in the gas cylinder 14 is too small, the pressure of the gas entering the filter element structure 12 is small, and the impurities attached to the filter element structure 12 cannot be blown off. At this point, the control valve 13 is controlled to close, and blowing into the filter element arrangement 12 is stopped.
Referring to fig. 6, in step S710, the time for opening the control valve 13 is counted to obtain the opening time.
In the present embodiment, the opening time of the control valve 13 is obtained by counting the opening time immediately after the control valve 13 is opened.
It will be readily appreciated that since the control valve 13 is opened to reverse the filter cartridge arrangement 12, the opening time can also be considered as the reverse cleaning time of the filter cartridge arrangement 12.
In step S720, it is determined whether the on time is greater than or equal to a third predetermined time.
In this embodiment, the third preset time is a time indicating that the reverse cleaning of the filter element structure 12 is completed, and whether the reverse cleaning of the filter element structure 12 is completed can be determined by determining a relationship between the opening time and the third preset time.
In step S730, if the opening time is greater than or equal to the third preset time, the control valve 13 is controlled to close.
If the opening time is greater than or equal to the third predetermined time, it can be considered that the reverse cleaning of the filter element arrangement 12 is substantially completed and the removal of the impurities from the filter element arrangement 12 is substantially completed, and at this time the control valve 13 can be closed.
It is easily understood that steps S610 to S630 are one control manner for controlling the valve 13 to be closed, and steps S710 to S730 are another control manner for controlling the valve 13 to be closed. If either condition is satisfied, the control valve 13 is controlled to close, and reverse cleaning of the filter element arrangement 12 is stopped.
The working principle of the self-cleaning control method provided by the embodiment is as follows: in this embodiment, if the intake pressure value is greater than or equal to the first preset pressure value and less than the second preset pressure value, the gas storage pressure value is greater than or equal to the third preset pressure value, and the internal combustion engine 11 is in the shutdown state, the control valve 13 is controlled to open, so as to reversely clean the filter element structure 12. And when the opening time of the control valve 13 is greater than or equal to the third preset time or the real-time pressure value of the gas storage cylinder 14 is less than or equal to the fourth preset pressure value, closing the control valve 13.
In summary, the self-cleaning control method provided in this embodiment determines whether to open the control valve 13 according to the intake pressure value, the gas storage pressure value and the operation state of the internal combustion engine 11, so as to improve the control accuracy of cleaning the filter element structure 12 and improve the cleaning effect of the filter element structure 12.
Referring to fig. 7, an embodiment of the present invention further provides a self-cleaning control device 20, where the self-cleaning control device 20 includes:
the first obtaining module 21 is configured to obtain an intake pressure value entering the internal combustion engine 11 after passing through the filter element structure 12.
Step S100 of the self-cleaning control method provided in the embodiment of the present invention may be executed by the first obtaining module 21.
And the second obtaining module 22 is configured to obtain a gas storage pressure value of the gas storage cylinder 14.
Step S200 of the self-cleaning control method provided in the embodiment of the present invention may be executed by the second obtaining module 22.
A third obtaining module 23 for obtaining an operating state of the internal combustion engine 11.
Step S300 of the self-cleaning control method provided in the embodiment of the present invention may be executed by the second obtaining module 22.
And the judging module 24 is configured to judge whether the reverse cleaning condition of the filter element structure 12 is met according to the air intake pressure value, the air storage pressure value and the operation state.
Step S400 of the self-cleaning control method provided by the embodiment of the present invention may be executed by the determination module 24.
And the control module 25 is used for controlling the control valve 13 to be opened if the reverse cleaning adjustment of the filter element structure 12 is carried out, so that the air storage bottle 14 blows back the filter element structure 12 to clean the filter element structure 12.
Steps S500, S610 to S630, and S710 to S730 of the self-cleaning control method provided in the embodiment of the present invention may be executed by the control module 25.
Referring to fig. 8, in the embodiment of the present invention, the agricultural machine 10 further includes a machine body, a processor 19, a memory 18, a peripheral interface, and a self-cleaning control device 20, wherein the memory 18 and the processor 19 are mounted on the machine body.
The embodiment of the invention provides an agricultural machine 10, in particular to a tractor, a harvester and the like.
The elements of the memory 18 and the processor 19 are electrically connected to each other, directly or indirectly, to enable the transfer or interaction of data. For example, the components may be electrically connected to each other via one or more communication buses or signal lines. The self-cleaning control device 20 includes at least one software function module which may be stored in the memory 18 in the form of software or firmware (firmware) or solidified in an Operating System (OS) of the server. The processor 19 is used for executing executable modules stored in the memory 18, such as software functional modules and computer programs comprised by the self-cleaning control device 20.
The Memory 18 may be, but is not limited to, a Random Access Memory 18 (RAM), a Read Only Memory 18 (ROM), a Programmable Read Only Memory 18 (PROM), an Erasable Read Only Memory 18 (EPROM), an electrically Erasable Read Only Memory 18 (EEPROM), and the like. The memory 18 is used for storing a program and voice data, and the processor 19 executes the program after receiving an execution instruction.
The processor 19 may be an integrated circuit chip having signal processing capabilities. The Processor 19 may be a general-purpose Processor 19, and includes a Central Processing Unit (CPU) 19, a Network Processor 19 (NP), and the like; but may also be a digital signal processor 19(DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. The general purpose processor 19 may be a microprocessor 19 or the processor 19 may be any conventional processor 19 or the like.
The processor 19 couples various input/output devices to the processor 19 and to the memory 18. In some embodiments, the processor 19 and the memory 18 may be implemented in a single chip. In other examples, they may be implemented separately from the individual chips.
The peripheral interfaces couple various input/output devices to the processor 19 and to the memory 18. In some embodiments, the peripheral interface, processor 19 and memory 18 may be implemented in a single chip. In other examples, they may be implemented separately from the individual chips.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (12)
1. A self-cleaning control method is applied to an agricultural machine (10), the agricultural machine (10) comprises an internal combustion engine (11), a filter element structure (12), a control valve (13) and an air storage bottle (14), an air outlet of the filter element structure (12) is respectively connected with the internal combustion engine (11) and the air storage bottle (14), the control valve (13) is arranged between the filter element structure (12) and the air storage bottle (14), and the self-cleaning control method comprises the following steps:
acquiring an intake pressure value entering the internal combustion engine (11) after passing through the filter element structure (12);
acquiring the gas storage pressure value of the gas storage cylinder (14);
acquiring an operating state of the internal combustion engine (11);
judging whether the reverse cleaning condition of the filter element structure (12) is met or not according to the air inlet pressure value, the air storage pressure value and the operation state;
and if the reverse cleaning condition of the filter element structure (12) is met, controlling the control valve (13) to be opened, so that the air storage bottle (14) blows air to the filter element structure (12) through the air outlet to clean the filter element structure (12).
2. The self-cleaning control method of claim 1, wherein the step of determining whether a reverse cleaning condition of the filter element arrangement (12) is met according to the intake pressure value, the reserve pressure value and the operating state comprises:
judging whether the intake pressure value is greater than or equal to a first preset pressure value and less than a second preset pressure value, the gas storage pressure value is greater than or equal to a third preset pressure value, and the internal combustion engine (11) is in a shutdown state;
and if the air inlet pressure value is greater than or equal to the first preset pressure value and less than the second preset pressure value, the air storage pressure value is greater than or equal to the third preset pressure value, and the internal combustion engine (11) is in a shutdown state, judging that the reverse cleaning condition of the filter element structure (12) is met.
3. The self-cleaning control method according to claim 2, wherein the step of determining whether the intake pressure value is greater than or equal to a first preset pressure value and less than a second preset pressure value, the reserve pressure value is greater than or equal to a third preset pressure value, and the internal combustion engine (11) is in a stopped state includes:
judging whether the intake pressure value is greater than or equal to the first preset pressure value and smaller than the second preset pressure value;
if the air inlet pressure value is greater than or equal to the first preset pressure value and smaller than the second preset pressure value, judging whether the air storage pressure value is greater than or equal to a third preset pressure value;
if the gas storage pressure value is greater than or equal to the third preset pressure value, judging whether the internal combustion engine (11) is in a stop state;
and if the internal combustion engine (11) is in a stop state, judging that the reverse cleaning condition of the filter element structure (12) is met.
4. The self-cleaning control method of claim 2, wherein before the step of controlling the control valve (13) to open to blow the gas cylinder (14) back into the filter cartridge arrangement (12) to clean the filter cartridge arrangement (12), the self-cleaning control method further comprises:
under the condition of meeting the reverse cleaning condition of the filter element structure (12), timing is started to obtain starting time;
judging whether the starting time is greater than or equal to a first preset time or not;
and if the starting time is greater than or equal to the first preset time, controlling the control valve (13) to be opened to enable the air storage bottle (14) to blow back the filter element structure (12) so as to clean the filter element structure (12).
5. The self-cleaning control method according to claim 2, wherein after the step of determining whether the cleaning condition of the filter element arrangement (12) is met according to the intake pressure value, the air storage pressure value and the operation state, the self-cleaning control method further comprises:
and if the air inlet pressure value is greater than or equal to a second preset pressure value, sending an alarm signal.
6. The self-cleaning control method according to claim 2, wherein after the step of determining whether the cleaning condition of the filter element arrangement (12) is met according to the intake pressure value, the air storage pressure value and the operation state, the self-cleaning control method further comprises:
if the gas storage pressure value is smaller than the third preset pressure value, controlling an air pump (16) connected with the gas storage bottle (14) to inflate the gas storage bottle (14) until the gas storage pressure value is larger than or equal to the third preset pressure value.
7. The self-cleaning control method according to claim 2, wherein the step of determining whether the internal combustion engine (11) is in a stopped state includes:
acquiring a real-time rotation speed of the internal combustion engine (11);
judging whether the real-time rotating speed is equal to zero or not;
if the real-time rotating speed is equal to zero, timing is started to obtain stop time;
judging whether the stop time is greater than or equal to a second preset time or not;
and if the stop time is greater than or equal to the second preset time, judging that the internal combustion engine (11) is in a stop state.
8. The self-cleaning control method of claim 1, wherein after the step of controlling the control valve (13) to open to blow the gas cylinder (14) back to the filter cartridge arrangement (12) to clean the filter cartridge arrangement (12), the self-cleaning control method further comprises:
acquiring a real-time pressure value of the gas cylinder (14);
judging whether the real-time pressure value is smaller than or equal to a fourth preset pressure value or not;
and if the real-time pressure value is less than or equal to a fourth preset pressure value, controlling the control valve (13) to close.
9. The self-cleaning control method of claim 1, wherein after the step of controlling the control valve (13) to open to blow the gas cylinder (14) back to the filter cartridge arrangement (12) to clean the filter cartridge arrangement (12), the self-cleaning control method further comprises:
timing the opening time of the control valve (13) to obtain the opening time;
judging whether the starting time is greater than or equal to a third preset time or not;
and if the opening time is greater than or equal to the third preset time, controlling the control valve (13) to close.
10. A self-cleaning control device, applied to an agricultural machine (10), wherein the agricultural machine (10) comprises an internal combustion engine (11), a filter element structure (12), a control valve (13) and a gas storage bottle (14), an air outlet of the filter element structure (12) is respectively connected with the internal combustion engine (11) and the gas storage bottle (14), the control valve (13) is arranged between the filter element structure (12) and the gas storage bottle (14), and the self-cleaning control device (20) comprises:
the first acquisition module (21) is used for acquiring an intake pressure value entering the internal combustion engine (11) after passing through the filter element structure (12);
the second acquisition module (22) is used for acquiring the gas storage pressure value of the gas storage cylinder (14);
a third acquisition module (23) for acquiring an operating state of the internal combustion engine (11);
the judging module (24) is used for judging whether the reverse cleaning condition of the filter element structure (12) is met or not according to the air inlet pressure value, the air storage pressure value and the running state;
and the control module (25) is used for controlling the control valve (13) to be opened if the reverse cleaning adjustment of the filter element structure (12) is carried out, so that the air storage bottle (14) blows air to the filter element structure (12) in a back blowing mode through the air outlet to clean the filter element structure (12).
11. Agricultural machine, comprising a memory (18) and a processor (19), the memory (18) being adapted to store computer instructions, the processor (19) being adapted to execute the computer instructions to implement the self-cleaning control method according to any one of claims 1-9.
12. An agricultural machine according to claim 11, wherein the agricultural machine (10) further comprises an internal combustion engine (11), a filter element arrangement (12), a control valve (13) and a gas cylinder (14), wherein an air outlet of the filter element arrangement (12) is connected with the internal combustion engine (11) and the gas cylinder (14), respectively, and the control valve (13) is arranged between the filter element arrangement (12) and the gas cylinder (14).
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| CN202111229332.3A CN114215666A (en) | 2021-10-21 | 2021-10-21 | Self-cleaning control method and device and agricultural machine |
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| CN202111229332.3A CN114215666A (en) | 2021-10-21 | 2021-10-21 | Self-cleaning control method and device and agricultural machine |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5182832A (en) * | 1992-04-27 | 1993-02-02 | Mcmahon Michael R | Air filter cleaning apparatus |
| CN201027562Y (en) * | 2007-04-25 | 2008-02-27 | 张玉川 | Energy economizer using braking gas |
| CN203702402U (en) * | 2014-02-17 | 2014-07-09 | 常州机电职业技术学院 | Self-cleaning type air filter |
| CN105649834A (en) * | 2016-03-02 | 2016-06-08 | 赵永胜 | Pneumatic flapping and air exhausting spraying self-cleaning type air filter |
| CN214145717U (en) * | 2020-12-30 | 2021-09-07 | 曼胡默尔滤清器（上海）有限公司 | Self-cleaning air filter |
-
2021
- 2021-10-21 CN CN202111229332.3A patent/CN114215666A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5182832A (en) * | 1992-04-27 | 1993-02-02 | Mcmahon Michael R | Air filter cleaning apparatus |
| CN201027562Y (en) * | 2007-04-25 | 2008-02-27 | 张玉川 | Energy economizer using braking gas |
| CN203702402U (en) * | 2014-02-17 | 2014-07-09 | 常州机电职业技术学院 | Self-cleaning type air filter |
| CN105649834A (en) * | 2016-03-02 | 2016-06-08 | 赵永胜 | Pneumatic flapping and air exhausting spraying self-cleaning type air filter |
| CN214145717U (en) * | 2020-12-30 | 2021-09-07 | 曼胡默尔滤清器（上海）有限公司 | Self-cleaning air filter |
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