CN110696593A - Automatic filth blockage detection method for automobile air conditioner filter, computer readable storage medium and air conditioner - Google Patents
Automatic filth blockage detection method for automobile air conditioner filter, computer readable storage medium and air conditioner Download PDFInfo
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- CN110696593A CN110696593A CN201910929952.4A CN201910929952A CN110696593A CN 110696593 A CN110696593 A CN 110696593A CN 201910929952 A CN201910929952 A CN 201910929952A CN 110696593 A CN110696593 A CN 110696593A
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- air conditioner
- filter screen
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- exhaust pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/06—Filtering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/06—Filtering
- B60H2003/0683—Filtering the quality of the filter or the air being checked
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Conditioning Control Device (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention provides an automatic filth blockage detection method for an automobile air conditioner filter, a computer readable storage medium and an air conditioner. The invention utilizes the newly added logic algorithm to self-check the condition of the automobile air conditioner filter screen, under the condition of system detection frequency and wind gear, the evaporation temperature is too low, and simultaneously the exhaust pressure is lower than the normal operation range, the filter screen can be judged to be dirty and blocked, under the condition, the user is informed to clean in time, the service life of the filter screen can be prolonged, and the health of the user is facilitated.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an automatic filth blockage detection method for an automobile air conditioner filter, a computer readable storage medium and an air conditioner.
Background
Automobile filter screen structure is fine and close, including automobile air conditioner operational environment is comparatively abominable, if travel for a long time in the region that the dust is serious or air quality is not good, cause the filter screen dirty stifled very easily, the air conditioner filter screen is dirty stifled can arouse air conditioning system operation unusual, simultaneously dirty stifled can arouse air conditioning system to report the trouble when serious, increase the maintenance number of times, and many car owners all just go to inspect the air conditioner filter screen when discovering that the air conditioner air-out has peculiar smell or air-out temperature is unusual, dirty stifled filter screen lasts to use and becomes the factor that harms the personal health, and the life of filter screen has been.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the automatic detection method for the filth blockage of the automobile air conditioner filter, which reminds a user of the filth blockage situation of the filter screen through self detection, and lets a vehicle owner clean the filter screen in time, so that the service life of the filter screen can be prolonged, and the factors of air pollution in a vehicle, bacterium breeding and the like which are harmful to human health caused by the filth blockage of the filter screen can be reduced.
In order to achieve the purpose, the invention adopts the following technical scheme:
after an air conditioner runs, evaporation temperature data and exhaust pressure data are obtained through real-time detection, and whether a filter screen is dirty or not is judged through analyzing the evaporation temperature data and the exhaust pressure data. The condition of the automobile air conditioner filter screen is self-detected by utilizing a newly added logic algorithm, the evaporation temperature is too low under the condition of system detection frequency and wind gear, and meanwhile, the exhaust pressure is lower than a normal operation range, so that the filter screen can be judged to be dirty and blocked.
Further, the analyzing the evaporation temperature data and the exhaust pressure data specifically includes: firstly, judging the temperature value of the evaporation temperature T, and when the evaporation temperature T meets the condition that T is not more than Ti-Ai, analyzing and judging the data of the exhaust pressure, wherein Ti represents the frequency of a compressor set by a starting program and the evaporation temperature value of the system in normal operation under the fan wind gear, and Ai represents the preset fluctuation range value. The analysis is carried out through the preliminary judgment and analysis of the evaporation temperature T, and the analysis of the exhaust pressure is carried out if the conditions are met, so that the analysis accuracy is ensured.
Further, the analyzing the evaporation temperature data and the exhaust pressure data specifically includes: firstly, judging the temperature value of the evaporation temperature T, and directly exiting the detection program when the evaporation temperature T meets the condition that Ti + Ai is more than or equal to T and more than Ti-Ai. When the evaporation temperature T meets the condition that Ti + Ai is more than Ti-Ai and is more than T, the misjudgment that the filter screen is dirty and blocked due to the increase of the evaporation temperature caused by the leakage of the system refrigerant can be eliminated, and the misjudgment rate is reduced.
Further, the analyzing and judging the data of the exhaust pressure specifically includes: and continuously detecting the exhaust pressure P for Y seconds, and if the detected exhaust pressures P all meet the condition that P is less than or equal to Pi, judging that the filter screen has a dirty blockage condition, wherein Pi is the value of the compressor frequency set by the starting program and the exhaust pressure of the system in normal operation under the fan wind gear. When two conditions that T is less than or equal to Ti-Ai and P is less than or equal to Pi are met, the filter screen is judged to be dirty and blocked, and the other conditions are normal conditions, so that the detection accuracy is improved.
Further, the data analysis and judgment of the exhaust pressure is specifically to detect the exhaust pressure P continuously for Y seconds, if the detected exhaust pressure P meets the condition that Pi + △ P is more than or equal to P and is more than Pi, the filter screen is judged to have no dirty blocking condition, the detection is directly quit, wherein △ P represents an allowable pressure rise difference value, and when the exhaust pressure P meets the condition that Pi + △ P is more than or equal to P and is more than Pi, the false judgment that the filter screen is dirty blocked due to abnormal rise of the system pressure caused by dirty blocking of the air conditioning pipeline can be eliminated, and the false judgment rate is reduced.
Further, the specific judgment of whether the filter screen is dirty or not is as follows: if the filter screen is judged to be dirty and blocked, a cleaning instruction is sent to the filter screen assembly, and the filter screen assembly can automatically clean according to the instruction. Through the automatic clearance of filter screen subassembly, just do not need the extra manual handling of user, start the clearance promptly detecting to have under the filthy stifled condition, can raise the efficiency, guarantee that the air conditioner lasts steady operation.
Further, the specific judgment of whether the filter screen is dirty or not is as follows: and if the filter screen is judged to be dirty and blocked, the system sends information needing to be cleaned to the mobile equipment through the wireless signal to remind the user. The judgment and detection logic can be added on the basis of the current automobile air conditioner by sending the information prompt, and the method is not limited to be only applied to a filter network with an automatic cleaning function, so that the application range of the method is expanded.
A computer readable storage medium for storing a computer program which, when invoked by a processor, implements the method for automatically detecting dirty filter plugging in an automotive air conditioner according to any one of the above.
An air conditioner comprising a processor and a memory for storing a computer program which, when invoked by the processor, implements the method of automatically detecting a dirty filter blockage in an automotive air conditioner as defined in any one of the preceding claims.
The invention provides an automatic filth blockage detection method for an automobile air conditioner filter, a computer readable storage medium and an air conditioner, which have the advantages that: the dirty and blocked detection function of the filter screen can be realized under the conditions that a detection device is not added and the cost is not increased by detecting values of the evaporation temperature and the exhaust pressure during the operation of the detection system and judging the dirty and blocked condition of the filter screen through a detection program of the air conditioning system.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of the present invention.
Example 1: an automatic filth blockage detection method for an automobile air conditioner filter.
As shown in fig. 1, an automatic detection method for filth blockage of an automobile air conditioner filter comprises the following specific steps:
the method comprises the following steps: receiving an air conditioner starting command, enabling an air conditioner system to enter a starting program, wherein the default compressor frequency f = I, and the fan gear w = x, wherein the compressor frequency f can be set to the initial compressor starting frequency I value according to different compressors and different operating environments, if the value of the fan gear w is set by a user, the fan gear w directly runs according to the set gear, and if the value of the fan gear w is not set, the value of the fan gear w can be set to x according to different ambient temperatures.
Step two, judging the temperature value of the evaporation temperature T of the system, executing exhaust pressure judgment when detecting that the evaporation temperature meets the condition T and is less than or equal to Ti-Ai, and directly quitting the detection program if the evaporation temperature does not meet the condition T and is less than or equal to Ti-Ai; wherein: the evaporation temperature Ti is a value of the evaporation temperature when the system normally operates under the condition of the compressor frequency and the fan wind gear set by the starting program, and the temperature interval (Ti-Ai, Ti + Ai) is the evaporation temperature change caused by the normal fluctuation of the system under the condition of the set compressor frequency and the fan wind gear;
and step three, when the condition of the judgment step two is met, entering the judgment of the exhaust pressure, judging that the filter screen has a dirty blockage condition if the system detects that the exhaust pressure P is less than or equal to Pi continuously for 30s, reminding a user to clean the filter screen, and directly exiting the detection program if the exhaust pressure P is less than or equal to Pi continuously for 30s, wherein the exhaust pressure Pi is the compressor frequency set by the starting program and the exhaust pressure value of the normal operation of the system under the wind gear of the fan, and the pressure interval (Pi, Pi + △ P) is the pressure range of the normal operation of the air conditioning system.
Example 2: an automatic filth blockage detection method for an automobile air conditioner filter.
The difference from the embodiment 1 is that when the filter screen is detected and judged to have the dirty blockage condition, a cleaning instruction is sent to the filter screen assembly, and the filter screen assembly realizes automatic cleaning according to the instruction. Through the automatic clearance of filter screen subassembly, just do not need the extra manual handling of user, start the clearance promptly detecting to have under the filthy stifled condition, can raise the efficiency, guarantee that the air conditioner lasts steady operation.
Example 3: a computer readable storage medium.
A computer-readable storage medium storing a computer program that, when invoked by a processor, implements the method of automatically detecting a dirty filter plugging in an automotive air conditioner according to any one of embodiments 1 or 2.
Example 4: an air conditioner.
An air conditioner comprising a processor and a memory, wherein the memory is used for storing a computer program, and when the computer program is called by the processor, the automatic dirty and blockage detection method for the filter of the automobile air conditioner in any one of embodiment 1 or embodiment 2 is realized.
The above description is only for the preferred embodiment of the present invention, but the present invention should not be limited to the embodiment and the disclosure of the drawings, and therefore, all equivalent or modifications that do not depart from the spirit of the present invention are intended to fall within the scope of the present invention.
Claims (9)
1. The automatic filth blockage detection method for the automobile air conditioner filter is characterized in that after the air conditioner runs, evaporation temperature data and exhaust pressure data are obtained through real-time detection, and whether filth blockage exists in a filter screen or not is judged through analyzing the evaporation temperature data and the exhaust pressure data.
2. The automatic detecting method for filth blockage of a filter of an automobile air conditioner as claimed in claim 1, wherein: the analysis of the evaporation temperature data and the exhaust pressure data specifically comprises the following steps: firstly, judging the temperature value of the evaporation temperature T, and when the evaporation temperature T meets the condition that T is not more than Ti-Ai, analyzing and judging the data of the exhaust pressure, wherein Ti represents the frequency of a compressor set by a starting program and the evaporation temperature value of the system in normal operation under the fan wind gear, and Ai represents the preset fluctuation range value.
3. The automatic detecting method for filth blockage of a filter of an automobile air conditioner as claimed in claim 1, wherein: the analysis of the evaporation temperature data and the exhaust pressure data specifically comprises the following steps: firstly, judging the temperature value of the evaporation temperature T, and directly exiting the detection program when the evaporation temperature T meets the condition that Ti + Ai is more than or equal to T and more than Ti-Ai.
4. The automatic filth blockage detection method for the filter of the automobile air conditioner as claimed in claim 2, wherein: the data analysis and judgment of the exhaust pressure specifically comprises the following steps: and continuously detecting the exhaust pressure P for Y seconds, and if the detected exhaust pressures P all meet the condition that P is less than or equal to Pi, judging that the filter screen has a dirty blockage condition, wherein Pi is the value of the compressor frequency set by the starting program and the exhaust pressure of the system in normal operation under the fan wind gear.
5. The automatic dirty-blockage detection method for the air conditioner filter of the automobile as claimed in claim 2, wherein the data analysis and judgment of the exhaust pressure is carried out by detecting the exhaust pressure P continuously for Y seconds, if the detected exhaust pressure P meets the condition that Pi + △ P is larger than or equal to P > Pi, the filter screen is judged to have no dirty blockage, and the detection is directly quitted, wherein △ P represents an allowable pressure rise difference value.
6. The automatic detecting method for filth blockage of a filter of an automobile air conditioner as claimed in claim 1, wherein: the specific case of judging whether the filter screen is dirty or not is as follows: if the filter screen is judged to be dirty and blocked, a cleaning instruction is sent to the filter screen assembly, and the filter screen assembly can automatically clean according to the instruction.
7. The automatic detecting method for filth blockage of a filter of an automobile air conditioner as claimed in claim 1, wherein: the specific case of judging whether the filter screen is dirty or not is as follows: and if the filter screen is judged to be dirty and blocked, the system sends information needing to be cleaned to the mobile equipment through the wireless signal to remind the user.
8. A computer-readable storage medium storing a computer program, characterized in that: the computer program, when being invoked by a processor, implements the method for automatically detecting the filth blockage of an automotive air conditioner filter according to any one of claims 1 to 7.
9. An air conditioner comprising a processor and a memory for storing a computer program, characterized in that: the computer program, when invoked by the processor, implements the method for automatically detecting a dirty filter of an automotive air conditioner according to any one of claims 1 to 7.
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| CN201910929952.4A CN110696593B (en) | 2019-09-29 | 2019-09-29 | Automatic filth blockage detection method for automobile air conditioner filter, computer readable storage medium and air conditioner |
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| CN201910929952.4A CN110696593B (en) | 2019-09-29 | 2019-09-29 | Automatic filth blockage detection method for automobile air conditioner filter, computer readable storage medium and air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113932394A (en) * | 2020-06-29 | 2022-01-14 | 中国移动通信集团浙江有限公司 | Antiscaling method and equipment for wet film humidifier |
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| JPH09202134A (en) * | 1996-01-26 | 1997-08-05 | Denso Corp | Air conditioner for vehicle |
| FR2848469A1 (en) * | 2002-12-16 | 2004-06-18 | Renault Sa | Filter blockage detector, for vehicle air conditioning system, uses high tension electrical discharge and measurement of current after filter |
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