CN113696693B - Self-cleaning method, electronic equipment, system and storage medium for automobile air conditioner - Google Patents
Self-cleaning method, electronic equipment, system and storage medium for automobile air conditioner Download PDFInfo
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- CN113696693B CN113696693B CN202110849145.9A CN202110849145A CN113696693B CN 113696693 B CN113696693 B CN 113696693B CN 202110849145 A CN202110849145 A CN 202110849145A CN 113696693 B CN113696693 B CN 113696693B
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- 238000004140 cleaning Methods 0.000 title claims abstract description 103
- 238000000034 method Methods 0.000 title claims abstract description 56
- 239000000428 dust Substances 0.000 claims abstract description 75
- 238000001179 sorption measurement Methods 0.000 claims abstract description 28
- 239000010419 fine particle Substances 0.000 claims abstract description 16
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 28
- 238000010257 thawing Methods 0.000 claims description 23
- 238000007664 blowing Methods 0.000 claims description 20
- 239000011248 coating agent Substances 0.000 claims description 16
- 238000000576 coating method Methods 0.000 claims description 16
- 238000004378 air conditioning Methods 0.000 claims description 15
- 238000009833 condensation Methods 0.000 claims description 14
- 230000005494 condensation Effects 0.000 claims description 14
- 239000011787 zinc oxide Substances 0.000 claims description 14
- 238000005057 refrigeration Methods 0.000 claims description 13
- 239000013618 particulate matter Substances 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 7
- 239000004973 liquid crystal related substance Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 238000007605 air drying Methods 0.000 description 12
- 230000006870 function Effects 0.000 description 10
- 230000000844 anti-bacterial effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000012459 cleaning agent Substances 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 206010039085 Rhinitis allergic Diseases 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 201000010105 allergic rhinitis Diseases 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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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
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
-
- 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
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
-
- 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
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
-
- 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
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
-
- 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
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3205—Control means therefor
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The application discloses a self-cleaning method of an automobile air conditioner, electronic equipment and a storage medium, wherein the method comprises the following steps: acquiring the air quantity of a blower of an automobile air conditioner and the concentration of fine particles in the automobile in real time; calculating dust adsorption quantity according to the air quantity of the blower and the concentration of the fine particles, and accumulating the dust adsorption quantity to obtain accumulated dust quantity; and if the accumulated dust amount is greater than or equal to a dust amount threshold value, performing self-cleaning operation of the automobile air conditioner. The application realizes the self-cleaning function of the evaporator by a scheme with low cost through the calibration of the whole vehicle in the earlier stage based on the configuration of the existing automobile air conditioner.
Description
Technical Field
The application relates to the technical field of automobiles, in particular to a self-cleaning method for an automobile air conditioner, electronic equipment and a storage medium.
Background
Automotive air conditioners typically employ parallel flow heat exchangers as evaporators. After a certain period of use, dust in a vehicle or in the environment can flow through the evaporator along with air, part of dust particles can adhere to the surfaces of the wet evaporator fins to form dirt, the formed dirt can influence the heat transfer and pressure drop of the evaporator, and the refrigerating performance of the vehicle air conditioner is reduced. In addition, bacteria are easy to grow on the surface of the evaporator in the formed dirt, and after bacteria grow, air blown out by the air conditioner has peculiar smell, so that allergic rhinitis or other diseases are easy to cause. Therefore, the automotive air conditioning evaporator needs to be cleaned frequently during use.
The existing air conditioner self-cleaning is only used on a household air conditioner, and no implementation scheme for self-cleaning an air conditioner evaporator is available on the current automobile air conditioner. Aiming at the cleaning of the automobile air conditioner evaporator, the current 4S shop directly cleans the evaporator surface by using a cleaning agent, the cleaning agent is sprayed into the air conditioner box body from an air conditioner air port, the cleaning mode provided by the 4S shop cannot clean the whole evaporator surface, and the cleaning agent can bring certain pollution to the environment. Further, the 4S shop cleaning requires additional cleaning costs.
The self-cleaning scheme of the evaporator adopted by the existing household air conditioner is mainly realized through refrigeration, frosting, defrosting and air drying, but has the following problems:
1. the surface dirt degree of the evaporator is not monitored in the partial cleaning scheme, and a user can manually start the air conditioner to automatically clean only when the air is odorous.
2. The partial scheme is that the millimeter wave radar is adopted to monitor the dust thickness on the surface of the evaporator or the differential pressure between the front and the rear of the evaporator is adopted to monitor the dirt degree on the surface of the evaporator, and the millimeter wave radar and the differential pressure meter (2) have higher cost and high price.
3. In order to increase the frosting amount (more water flow can be generated during defrosting and dirt is taken away quickly), part of the proposal adopts a humidifier to spray steam on the surface of the evaporator, the cost of the humidifier is extra, the cost is high, and no arrangement space is arranged in the automobile air conditioner, so the proposal is not used for the automobile air conditioner. The partial scheme adopts multiple times of condensation to increase frosting quantity, and multiple times of condensation are needed to consume more energy sources and have long overall time. In addition, multiple frosting can affect the service life of the automotive air conditioning compressor.
4. The defrosting process of the household air conditioner is to add an auxiliary heater to heat the frost layer, and after the frost layer melts water, dirt wrapped in the frost layer flows away along with the water. Therefore, additional auxiliary heater cost is required, and the price is high.
5. The air drying process of the existing air conditioner is implemented under the condition that an air conditioner compressor is closed and only a fan is opened, the air drying process of the household air conditioner is implemented by adopting fixed air quantity (medium-high grade air quantity) and fixed time, the voltage of an automobile blower is directly taken from a storage battery, under the condition that an engine is closed, if the medium-high grade air quantity and fixed time strategy is adopted, the power consumption of the blower can be increased, the capacity of the storage battery can be reduced, the starting of the whole automobile is affected, and meanwhile, the service life of the storage battery can be reduced.
Disclosure of Invention
Based on this, it is necessary to provide a self-cleaning method, an electronic device and a storage medium for an automotive air conditioner, which solve the technical problem that the prior art automotive air conditioner is difficult to realize self-cleaning.
The application provides a self-cleaning method of an automobile air conditioner, which comprises the following steps:
acquiring the air quantity of a blower of an automobile air conditioner and the concentration of fine particles in the automobile in real time;
calculating dust adsorption quantity according to the air quantity of the blower and the concentration of the fine particles, and accumulating the dust adsorption quantity to obtain accumulated dust quantity;
and if the accumulated dust amount is greater than or equal to a dust amount threshold value, performing self-cleaning operation of the automobile air conditioner.
Further, the calculating the dust adsorption amount according to the air volume of the blower and the concentration of the fine particles specifically includes:
calculate the dust adsorption amount a0=v×t×p× (1-K) for each operating condition of the automotive air conditioner, wherein: a0 is dust adsorption quantity, V is air quantity of the air blower under the running working condition, t is running time of the running working condition, P is fine particulate matter concentration of the running working condition, and K is filtering efficiency of an automobile air conditioner filter screen on fine particulate matters;
and accumulating the dust adsorption amounts of all the operating conditions to obtain accumulated dust amount.
Furthermore, the method for acquiring the air quantity of the blower of the automobile air conditioner and the concentration of the fine particles in the automobile in real time specifically comprises the following steps:
and acquiring the air quantity of the blower corresponding to the current working condition of the automobile air conditioner, and acquiring the concentration of fine particles in the automobile in real time.
Further, if the accumulated dust amount is greater than or equal to a dust amount threshold, performing a self-cleaning operation of the air conditioner of the automobile, specifically including:
if the accumulated dust amount is greater than or equal to a dust amount threshold value, executing self-cleaning operation of the automobile air conditioner; otherwise, acquiring accumulated use time of the air blower of the automobile air conditioner, and executing self-cleaning operation of the automobile air conditioner if the accumulated use time is greater than or equal to a time threshold.
Further, the executing self-cleaning operation of the automobile air conditioner specifically includes:
and sending a self-cleaning prompt of the automobile air conditioner, and executing a self-cleaning process of the automobile air conditioner after receiving a self-cleaning instruction of the automobile air conditioner.
Further, the self-cleaning process of the automobile air conditioner comprises the following steps:
controlling the running time of the automobile air conditioner to run in a refrigeration and condensation mode;
after the dew condensation running time, controlling the automobile air conditioner to run the frosting running time in a frosting mode;
after the frosting operation time, controlling the automobile air conditioner to operate in a frosting mode to realize frosting operation time;
and after defrosting operation time, controlling the automobile air conditioner to operate the air blowing operation time in a time-delay air outlet mode.
Further, the refrigeration dew mode is as follows:
controlling a blower of an automobile air conditioner to run in a first gear or a second gear, setting the target temperature of an evaporator to be a first temperature, wherein the second gear is lower than the first gear, and the first gear is lower than the highest gear of the blower;
and acquiring the ambient temperature and the temperature in the vehicle, if the ambient temperature is greater than the temperature in the vehicle, controlling the vehicle air conditioner circulation mode to be an external circulation mode, and if the ambient temperature is less than the temperature in the vehicle, controlling the vehicle air conditioner circulation mode to be an internal circulation mode.
Still further, the frosting mode is:
controlling a blower of an automobile air conditioner to run in a second gear, and setting the target temperature of an evaporator to be a second temperature which is less than or equal to the first temperature;
and if the ambient temperature is higher than the temperature in the vehicle, controlling the vehicle air conditioner circulation mode to be an internal circulation mode, and if the ambient temperature is lower than the temperature in the vehicle, controlling the vehicle air conditioner circulation mode to be an external circulation mode.
Still further, the frosting operation time is determined according to a blower intake air temperature.
Still further, the defrosting mode is:
and controlling the blower of the automobile air conditioner to run at the maximum gear, closing the compressor, and controlling the circulation mode of the automobile air conditioner to be an external circulation mode.
Further, the time-delay air-out mode is as follows:
closing a compressor, controlling an automobile air conditioner circulation mode to be an external circulation mode, and controlling a blower of the automobile air conditioner to operate for a first blowing time in a first gear;
after the blower of the automobile air conditioner runs for a first blowing time in a first gear, the blower of the automobile air conditioner is controlled to run for a second blowing time in a second gear, and the first gear is higher than the second gear.
Still further, the evaporator surface of the automobile air conditioner is coated with a nano zinc oxide coating.
The present application provides an electronic device including:
at least one processor; the method comprises the steps of,
a memory communicatively coupled to at least one of the processors; wherein, the liquid crystal display device comprises a liquid crystal display device,
the memory stores instructions executable by at least one of the processors to enable the at least one processor to perform the vehicle air conditioner self-cleaning method as previously described.
The present application provides a storage medium storing computer instructions for performing all the steps of a self-cleaning method of an automotive air conditioner as described above when the computer executes the computer instructions.
The application realizes the self-cleaning function of the evaporator by a scheme with low cost through the calibration of the whole vehicle in the earlier stage based on the configuration of the existing automobile air conditioner. The application realizes self-cleaning function with low cost, reduces the power consumption of the blower and reduces the influence on the service life of the whole vehicle storage battery. According to the application, the nano zinc oxide coating is coated on the surface of the evaporator, so that the frosting quantity is increased, meanwhile, the refrigerating performance of the automobile air conditioner during normal operation is improved, and the comfort of the passenger cabin is improved. In addition, the zinc oxide coating can effectively improve the antibacterial rate of the surface of the evaporator. The rapid frosting scheme provided by the application improves the dust removal rate of the surface of the evaporator on the premise of ensuring that the service life of the air conditioner compressor is not influenced. The application provides a self-cleaning air-drying scheme of an automobile air conditioner in combination with whole automobile calibration, which reduces the absolute power consumption of an air blower, and further reduces the negative influence on the capacity and service life of a whole automobile storage battery caused by the opening of the air blower in the air-drying process.
Drawings
FIG. 1 is a workflow diagram of a self-cleaning method of an automotive air conditioner according to the present application;
FIG. 2 is a flowchart of a self-cleaning method of an air conditioner for a vehicle according to an embodiment of the present application;
FIG. 3 is a flowchart of a self-cleaning method of an automotive air conditioner according to a preferred embodiment of the present application;
FIG. 4 is a workflow diagram of a self-cleaning process of an automotive air conditioner in accordance with a preferred embodiment of the present application;
fig. 5 is a schematic diagram of a hardware structure of an electronic device according to the present application.
Detailed Description
The application will now be described in further detail with reference to the drawings and to specific examples.
Example 1
As shown in fig. 1, a working flow chart of a self-cleaning method of an automotive air conditioner of the application comprises the following steps:
step S101, acquiring the air quantity of a blower of an automobile air conditioner and the concentration of fine particles in the automobile in real time;
step S102, calculating dust adsorption quantity according to the air quantity of the blower and the concentration of fine particles, and accumulating the dust adsorption quantity to obtain accumulated dust quantity;
step S103, if the accumulated dust amount is equal to or greater than a dust amount threshold, performing a self-cleaning operation of the vehicle air conditioner.
In particular, the application may be applied to an electronic controller unit (Electronic Control Unit, ECU) of a vehicle.
By executing step S101, the blower air volume of the vehicle air conditioner and the concentration of fine particulate matters in the vehicle are obtained in real time. Then, step S102 is executed to calculate the dust adsorption amount according to the blower air volume and the fine particulate matter concentration, and all the dust adsorption amounts are accumulated to obtain the accumulated dust amount.
When the accumulated dust amount is equal to or larger than the dust amount threshold, step S103 is triggered to execute the self-cleaning operation of the air conditioner of the automobile. After the self-cleaning operation of the automobile air conditioner is finished or after the user sends out an air conditioner self-cleaning instruction, the accumulated dust amount is cleared.
The application realizes the self-cleaning function of the evaporator by a scheme with low cost through the calibration of the whole vehicle in the earlier stage based on the configuration of the existing automobile air conditioner.
Example two
Fig. 2 is a flowchart of a self-cleaning method of an air conditioner for a vehicle according to an embodiment of the present application, including:
step S201, obtaining the air quantity of a blower corresponding to the current working condition of an automobile air conditioner, and obtaining the concentration of fine particles in the automobile in real time;
in one embodiment, the obtaining the air quantity of the blower under the current working condition of the automobile air conditioner specifically includes:
and determining the current working condition of the automobile air conditioner, and obtaining the air quantity of the blower corresponding to the current working condition.
Step S202, calculating dust adsorption amount a0=v×t×p× (1-K) for each operating condition of the vehicle air conditioner, wherein: a0 is dust adsorption quantity, V is air quantity of the air blower under the running working condition, t is running time of the running working condition, P is fine particulate matter concentration of the running working condition, and K is filtering efficiency of an automobile air conditioner filter screen on fine particulate matters;
step S203, accumulating the dust adsorption amounts of all the operating conditions to obtain accumulated dust amounts;
step S204, if the accumulated dust amount is larger than or equal to a dust amount threshold, executing step S205; otherwise, acquiring accumulated use time of the air conditioner blower of the automobile, and executing step S205 if the accumulated use time is greater than or equal to a time threshold;
step S205, a self-cleaning prompt of the automobile air conditioner is sent, and after a self-cleaning instruction of the automobile air conditioner is received, a self-cleaning flow of the automobile air conditioner is executed;
step S206, controlling the running time of the automobile air conditioner to run in a refrigeration and condensation mode;
step S207, after the dew condensation running time, controlling the automobile air conditioner to run the frosting running time in a frosting mode;
step S208, controlling the vehicle air conditioner to operate in a defrosting mode for defrosting operation time after the defrosting operation time;
step S209, after defrosting operation time, controlling the air conditioner to operate the air blowing operation time in a time-delay air outlet mode.
In one embodiment, the refrigeration condensation mode is:
controlling a blower of an automobile air conditioner to run in a first gear or a second gear, setting the target temperature of an evaporator to be a first temperature, wherein the second gear is lower than the first gear, and the first gear is lower than the highest gear of the blower; preferably, the first temperature is from 0 ℃ to 3 ℃.
And acquiring the ambient temperature and the temperature in the vehicle, if the ambient temperature is greater than the temperature in the vehicle, controlling the vehicle air conditioner circulation mode to be an external circulation mode, and if the ambient temperature is less than the temperature in the vehicle, controlling the vehicle air conditioner circulation mode to be an internal circulation mode.
In one embodiment, the frosting mode is:
controlling a blower of an automobile air conditioner to run in a second gear, and setting the target temperature of an evaporator to be a second temperature which is less than or equal to the first temperature; preferably, the second temperature is-8 ℃ to-5 ℃.
And if the ambient temperature is higher than the temperature in the vehicle, controlling the vehicle air conditioner circulation mode to be an internal circulation mode, and if the ambient temperature is lower than the temperature in the vehicle, controlling the vehicle air conditioner circulation mode to be an external circulation mode.
In one embodiment, the frosting operation time is determined according to the temperature of the air sucked by the blower.
In one embodiment, the defrosting mode is:
and controlling the blower of the automobile air conditioner to run at the maximum gear, closing the compressor, and controlling the circulation mode of the automobile air conditioner to be an external circulation mode.
In one embodiment, the delayed air-out mode is:
closing a compressor, controlling an automobile air conditioner circulation mode to be an external circulation mode, and controlling a blower of the automobile air conditioner to operate for a first blowing time in a first gear;
after the blower of the automobile air conditioner runs for a first blowing time in a first gear, the blower of the automobile air conditioner is controlled to run for a second blowing time in a second gear, and the first gear is higher than the second gear.
Specifically, step S201 is executed to obtain the blower air volume corresponding to the current working condition of the vehicle air conditioner, and to obtain the concentration of the fine particulate matters in the vehicle in real time.
The working condition of the automobile air conditioner is determined according to the gear, the internal and external circulation state, the mode state and the temperature air door mode of the air conditioner blower. The air quantity of each working condition is measured in advance and is input into the controller for recording. Step S201, the gear, the internal and external circulation state, the mode state and the temperature air door mode of the air conditioner blower can be monitored in real time, so that different working conditions are determined, and the air volume V (m) of the corresponding air conditioner blower is determined 3 /h). For example, the blower has 7 gears, 2 internal and external circulation, 5 modes and 3 temperature air door positions, and 210 working conditions are all adopted. At the same time, the concentration of fine particulate matter in the vehicle, such as the concentration P (ug/m) of PM2.5, is monitored in real time 3 )。
Then, in step S202, the dust adsorption amount a0=v×t×p× (1-K) of each of the operated conditions of the vehicle air conditioner is calculated, wherein: a0 is dust adsorption quantity, V is air quantity of the air blower under the running working condition, t is running time of the running working condition, P is fine particulate matter concentration of the running working condition, and K is filtering efficiency of the automobile air conditioner filter screen on fine particulate matters. The operating condition of the vehicle air conditioner refers to a condition that the vehicle air conditioner has been operated from the time when the self-cleaning operation is completed to the current time. The running working condition of the automobile air conditioner is recalculated after the automobile air conditioner finishes self-cleaning operation or after a user sends out an air conditioner self-cleaning instruction.
When the automobile air conditioner enters a working condition, the running time of the working condition and the concentration of fine particles in the working condition are recorded. When the automobile air conditioner enters the next working condition, the last working condition is the running working condition, and the dust adsorption quantity A0 of the automobile air conditioner is calculated. In one operating mode, the blower air volume is unchanged, but the fine particulate matter concentration may change. Therefore, the concentration of the fine particulate matters in one working condition can be sampled for a plurality of times, a plurality of sampling values are obtained, and the average value or the weighted value of the sampling values is used as the concentration of the fine particulate matters in the working condition.
The air conditioning filter screen filters fine particulate matter. Therefore, the dust adsorption amount a0=v×t×p× (1-K) of each of the operated conditions of the air conditioner, wherein: a0 is dust adsorption quantity, V is air quantity of the air blower under the running working condition, t is running time of the running working condition, P is fine particulate matter concentration of the running working condition, and K is filtering efficiency of the automobile air conditioner filter screen on fine particulate matters.
For example, if the filtration efficiency of PM2.5 is 90%, the amount of adsorbed dust on the evaporator surface in this time range under this condition is a0=v×t×p× (1-90%).
Then, step S203 is executed to accumulate the dust adsorption amounts A0 of all the operating conditions to obtain an accumulated dust amount Az.
If the accumulated dust amount Az is equal to or greater than the dust amount threshold a, step S205 is performed, otherwise, the accumulated use time of the air conditioner blower of the automobile is checked. Some vehicles are in an unused state for a long time or the air conditioning filter PM2.5 has a high filtration efficiency, and therefore, the accumulated dust amount thereof will always remain below the dust amount threshold a. However, after a certain period of time, although the threshold value a of the accumulated dust amount of the evaporator surface is not reached, the evaporator surface may have grown mold, and further use may also cause air pollution in the vehicle. Therefore, the use period of the time threshold T is preset at the same time as the term, and if the cumulative use time of the automotive air conditioner blower exceeds the time threshold T1, it is necessary to execute step S205 even if the evaporator surface cumulative dust amount threshold is not reached. The accumulated service time is cleared after the self-cleaning operation of the automobile air conditioner is finished or after the self-cleaning instruction of the air conditioner is sent out by a user.
Step S205 actively sends an evaporator self-cleaning reminder, and a user can trigger an air conditioner self-cleaning instruction by clicking an air conditioner self-cleaning button. When the self-cleaning instruction of the air conditioner input by the user is received, the air conditioner enters a self-cleaning mode, and self-cleaning operation is executed.
Step S206 to step S209 are self-cleaning operations, and the self-cleaning treatment process sequentially comprises refrigeration condensation, frosting, defrosting and time-delay air-out.
Specifically, in the cooling dew mode, the blower is operated in the first gear or the second gear, preferably, the first gear is a middle gear and the second gear is a low gear. The evaporator target control temperature is a first temperature, preferably 0 ℃. When the ambient temperature is more than the temperature in the vehicle, the air conditioner circulates outside, and when the ambient temperature is less than the temperature in the vehicle, the air conditioner circulates inside. If the ambient temperature is equal to the temperature in the vehicle, the air conditioner may be an air conditioner external cycle or an air conditioner internal cycle.
The middle and low grade of the blower is set, and the target control temperature is 0-3 ℃ to quickly generate a large amount of condensed water on the surface of the evaporator. The air conditioner internal and external circulation is selected to enable the blower to suck air with higher temperature, and the higher the temperature is, the larger the absolute moisture content in the air is, so that a large amount of condensed water is generated.
And controlling the automobile air conditioner to operate the frosting operation time in the frosting mode after the condensation operation time is operated in the cooling condensation mode. In the frosting mode, the blower operates in a second gear, the second gear is preferably a low gear, the target control temperature of the evaporator is a second temperature, preferably-8 ℃ -5 ℃, the ambient temperature is higher than the temperature in the vehicle, the circulation mode of the automobile air conditioner is controlled to be an internal circulation mode, and if the ambient temperature is lower than the temperature in the vehicle, the circulation mode of the automobile air conditioner is controlled to be an external circulation mode, so that condensed water on the surface of the evaporator is frosted rapidly. If the ambient temperature is equal to the temperature in the vehicle, the air conditioner may be an air conditioner external cycle or an air conditioner internal cycle.
Wherein, the air blower runs in the low gear, can make the evaporator frosted more fast. Meanwhile, the lower the target control temperature is, the faster the evaporator frosts, if the target control temperature is too low, the more liquid refrigerant is sucked into the compressor, so that the compressor is easily damaged, and the liquid impact durability of the compressor can be ensured while the frosting speed is ensured at-8-5 ℃.
Meanwhile, the frosting operation time is determined according to the temperature of the sucked air of the blower. When the temperature of the air sucked by the blower is in different ranges, the corresponding frosting operation time is selected.
The specific frosting time needs to be calibrated, and mainly ensures the thickness of the frost layer on the surface of the evaporator, and ensures that the frost layer can wrap the foreign matters on the surface of the evaporator. The higher the blower intake air temperature, the longer it takes to reach the same frost layer.
For example, if the blower intake air temperature is greater than or equal to 30 ℃, the frosting operation time is T2, if 15 ℃ is greater than or equal to 30 ℃, the frosting operation time is T3, and if the blower intake air temperature is less than 15 ℃, the frosting operation time is T4.
And controlling the automobile air conditioner to operate in the defrosting mode after the defrosting operation time is operated in the defrosting mode. In the defrosting mode, the blower operates at the maximum gear, the compressor is turned off, and the air conditioning circulation mode is an external circulation mode. Therefore, the blower can suck air with higher external circulation temperature, and quickly melt the frost layer on the surface of the evaporator.
And controlling the automobile air conditioner to operate in a time-delay blowing mode after the defrosting operation time in the defrosting mode. In the time-delay blowing mode, the compressor is turned off, and the air conditioning circulation mode is an external circulation mode. The blower is first operated in a first gear, which is preferably a medium gear.
The air conditioning cycle mode is then an external cycle mode with the compressor off, and the blower is operated in a second gear, preferably a low gear.
After defrosting is completed, a little water solution still remains on the surface of the evaporator, and a little Shui Ye remaining on the surface of the evaporator can grow mold, so that the water solution on the surface of the evaporator needs to be dried continuously, the surface of the evaporator is ensured to be dry, and mold growth is avoided.
The blower is operated in the middle gear to accelerate the discharge of the just melted condensed water, and then operated in the low gear wind to discharge the residual condensed water on the evaporating surface. And the running gear and time of the delayed blowing air blower pass through the whole vehicle calibration, so that the optimal running mode is found to ensure that residual water on the surface of the evaporator is drained completely, the whole running power consumption of the air blower is reduced, and the negative influence on the capacity and service life of a storage battery caused by the opening of the air blower in the air drying process is reduced.
The application realizes the self-cleaning function of the evaporator by a scheme with low cost through the calibration of the whole vehicle in the earlier stage based on the configuration of the existing automobile air conditioner. The application realizes self-cleaning function with low cost, reduces the power consumption of the blower and reduces the influence on the service life of the whole vehicle storage battery. According to the application, the nano zinc oxide coating is coated on the surface of the evaporator, so that the frosting quantity is increased, meanwhile, the refrigerating performance of the automobile air conditioner during normal operation is improved, and the comfort of the passenger cabin is improved. In addition, the zinc oxide coating can effectively improve the antibacterial rate of the surface of the evaporator. The rapid frosting scheme provided by the application improves the dust removal rate of the surface of the evaporator on the premise of ensuring that the service life of the air conditioner compressor is not influenced. The application provides a self-cleaning air-drying scheme of an automobile air conditioner in combination with whole automobile calibration, which reduces the absolute power consumption of an air blower, and further reduces the negative influence on the capacity and service life of a whole automobile storage battery caused by the opening of the air blower in the air-drying process.
In one embodiment, the surface of the evaporator of the automobile air conditioner is coated with a nano zinc oxide coating.
Specifically, in order to increase the adhesion of condensed water on the surface of an evaporator in a refrigeration dew mode, the surface of the evaporator is coated with a nano zinc oxide coating with the thickness of 0.4 microns, the coating can enable condensed water drops to rapidly spread on the surface of the evaporator to form a water film, the adhesion of the condensed water on the surface of the evaporator is larger, meanwhile, the wind resistance of the evaporator can be reduced, the heat transfer is improved, and the refrigeration performance of the air conditioner is improved when the automobile air conditioner is normally used.
In the time-delay blowing mode, the nano zinc oxide hydrophilic coating on the surface of the evaporator can improve the antibacterial rate of the surface of the evaporator, and the antibacterial rate of the surface of the evaporator is more than or equal to 99%. Nano zinc oxide hydrophilic coating
Fig. 3 is a flowchart showing a self-cleaning method of an air conditioner for a vehicle according to a preferred embodiment of the present application, comprising:
step S301, judging whether an air conditioner self-cleaning key is pressed, if so, executing step S305, otherwise, executing step S302;
step S302, if the accumulated dust amount on the surface of the evaporator is more than or equal to the dust amount threshold A, executing step S304, otherwise executing step S303;
step S303, if the accumulated service time of the air conditioner blower is more than or equal to the time threshold T, executing step S304, otherwise executing step S301;
step S304, actively sending an air conditioner self-cleaning reminder;
step S305, when an air conditioner self-cleaning instruction is received, the air conditioner enters a self-cleaning mode, and a self-cleaning process flow of the automobile air conditioner is executed, wherein the self-cleaning process flow sequentially comprises refrigeration, condensation, frosting, defrosting and delayed air outlet.
Fig. 4 is a flowchart showing a self-cleaning process of an automotive air conditioner according to a preferred embodiment of the present application, including:
step S401, entering a refrigeration condensation mode: the air blower operates in a middle-low grade, the target control temperature of the evaporator is 0 ℃, when the ambient temperature is more than the temperature in the vehicle, the air-conditioning circulation mode is external circulation, and when the ambient temperature is less than the temperature in the vehicle, the air-conditioning circulation mode is internal circulation;
step S402, if the operation time of the refrigeration dew mode is not less than T1, executing step S403, otherwise executing step S401;
step S403, entering into a frosting mode: the air blower operates in low grade, the target control temperature of the evaporator is minus 5 ℃, when the ambient temperature is more than the temperature in the vehicle, the air conditioner circulation mode is internal circulation, when the ambient temperature is less than the temperature in the vehicle, the air conditioner circulation mode is external circulation, and the condensed water on the surface of the evaporator is rapidly frosted;
step S404, if the temperature of the air sucked by the blower is more than or equal to 30 ℃, executing step S405, otherwise executing step S406;
step S405, if the frosting mode operation time is not less than T2, executing step S409, otherwise executing step S403;
step S406, if the temperature of the air sucked by the blower is less than or equal to 15 ℃ and less than 30 ℃, executing step S407, otherwise executing step S408;
step S407, if the frosting mode operation time is not less than T3, executing step S409, otherwise executing step S403;
step S408, if the frosting mode operation time is not less than T4, executing step S409, otherwise executing step S403;
step S409, entering a defrosting mode: the blower runs at the maximum gear, the compressor is closed, and the air conditioner circulation mode is external circulation;
step S410, if the defrosting mode operation time is more than or equal to T5, executing step S411, otherwise executing step S409;
step S411, entering a time delay blowing mode: the compressor is closed, the air conditioning circulation mode is external circulation, and the blower runs in a middle gear;
step S412, if the middle-gear operation time in the time-delay blowing mode is not less than T6, executing step S413, otherwise executing step S411;
step S413, entering a time delay blowing mode: : the compressor is closed, the air conditioning circulation mode is external circulation, and the blower operates in a low gear;
step S414, if the low-gear operation time of the time-delay blowing mode is more than or equal to T7, ending, otherwise, executing step S413.
The application realizes the self-cleaning active reminding of the evaporator by a low-cost scheme through the early-stage whole vehicle calibration based on the configuration of the existing automobile air conditioner, and reminds a customer to start the self-cleaning function of the evaporator. The application realizes self-cleaning function with low cost, reduces the power consumption of the blower and reduces the influence on the service life of the whole vehicle storage battery. According to the application, the nano zinc oxide coating is coated on the surface of the evaporator, and the thickness of the coating is 0.4 micrometers, so that the frosting quantity is increased, the refrigerating performance of the automobile air conditioner during normal operation is improved, and the comfort of the passenger cabin is improved. In addition, the 0.4-micrometer zinc oxide coating can effectively improve the antibacterial rate of the surface of the evaporator, and the antibacterial rate is more than or equal to 99%. The rapid frosting scheme provided by the application improves the dust removal rate of the surface of the evaporator on the premise of ensuring that the service life of the air conditioner compressor is not influenced. The application provides a self-cleaning air-drying scheme of an automobile air conditioner in combination with whole automobile calibration, which reduces the absolute power consumption of an air blower, and further reduces the negative influence on the capacity and service life of a whole automobile storage battery caused by the opening of the air blower in the air-drying process.
Fig. 5 is a schematic diagram of a hardware structure of an electronic device according to the present application, including:
at least one processor 501; the method comprises the steps of,
a memory 502 communicatively coupled to at least one of the processors 501; wherein, the liquid crystal display device comprises a liquid crystal display device,
the memory 502 stores instructions executable by at least one of the processors to enable the at least one processor to perform a vehicle air conditioner self-cleaning method as previously described.
One processor 501 is illustrated in fig. 5.
The electronic device may further include: an input device 503 and a display device 504.
The processor 501, memory 502, input device 503, and display device 504 may be connected by a bus or other means, the connection being illustrated by a bus.
The memory 502 is used as a non-volatile computer readable storage medium for storing non-volatile software programs, non-volatile computer executable programs and modules, such as program instructions/modules corresponding to the self-cleaning method of an air conditioner of an automobile in an embodiment of the application, for example, the method flow shown in fig. 1. The processor 501 executes various functional applications and data processing by running nonvolatile software programs, instructions and modules stored in the memory 502, i.e., implements the self-cleaning method of the air conditioner for a vehicle in the above-described embodiment.
Memory 502 may include a storage program area that may store an operating system, at least one application program required for functionality, and a storage data area; the storage data area may store data created according to the use of the self-cleaning method of the air conditioner of the automobile, or the like. In addition, memory 502 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device. In some embodiments, memory 502 may optionally include memory remotely located with respect to processor 501, which may be connected via a network to a device performing the auto air conditioning self-cleaning method. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 503 may receive input user clicks and generate signal inputs related to user settings and function controls of the auto air conditioning self-cleaning method. The display 504 may include a display device such as a display screen.
In which the one or more modules are stored in the memory 502, which when executed by the one or more processors 501, perform the auto air conditioning self-cleaning method of any of the method embodiments described above.
The application realizes the self-cleaning function of the evaporator by a scheme with low cost through the calibration of the whole vehicle in the earlier stage based on the configuration of the existing automobile air conditioner. The application realizes self-cleaning function with low cost, reduces the power consumption of the blower and reduces the influence on the service life of the whole vehicle storage battery. According to the application, the nano zinc oxide coating is coated on the surface of the evaporator, so that the frosting quantity is increased, meanwhile, the refrigerating performance of the automobile air conditioner during normal operation is improved, and the comfort of the passenger cabin is improved. In addition, the zinc oxide coating can effectively improve the antibacterial rate of the surface of the evaporator. The rapid frosting scheme provided by the application improves the dust removal rate of the surface of the evaporator on the premise of ensuring that the service life of the air conditioner compressor is not influenced. The application provides a self-cleaning air-drying scheme of an automobile air conditioner in combination with whole automobile calibration, which reduces the absolute power consumption of an air blower, and further reduces the negative influence on the capacity and service life of a whole automobile storage battery caused by the opening of the air blower in the air-drying process.
An embodiment of the application provides a storage medium storing computer instructions for performing all the steps of a self-cleaning method of an automotive air conditioner as described above when executed by a computer.
The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (10)
1. A self-cleaning method of an automotive air conditioner, comprising:
acquiring the air quantity of a blower of an automobile air conditioner and the concentration of fine particles in the automobile in real time;
calculating dust adsorption quantity according to the air quantity of the blower and the concentration of the fine particles, and accumulating the dust adsorption quantity to obtain accumulated dust quantity;
if the accumulated dust amount is greater than or equal to a dust amount threshold value, executing self-cleaning operation of the automobile air conditioner;
the self-cleaning process of the automobile air conditioner comprises the following steps:
controlling the running time of the automobile air conditioner to run in a refrigeration and condensation mode;
after the condensation running time, controlling the automobile air conditioner to run in a frosting mode, wherein the frosting running time is determined according to the temperature of air sucked by the blower;
after the frosting operation time, controlling the automobile air conditioner to operate in a frosting mode to realize frosting operation time;
after defrosting operation time, controlling the air conditioner of the automobile to operate in a time-delay air-out mode for blowing operation time;
the refrigeration dew mode is as follows:
controlling a blower of an automobile air conditioner to run in a first gear or a second gear, setting the target temperature of an evaporator to be a first temperature, wherein the second gear is lower than the first gear, and the first gear is lower than the highest gear of the blower;
acquiring the ambient temperature and the temperature in the vehicle, if the ambient temperature is greater than the temperature in the vehicle, controlling the circulation mode of the vehicle air conditioner to be an external circulation mode, and if the ambient temperature is less than the temperature in the vehicle, controlling the circulation mode of the vehicle air conditioner to be an internal circulation mode;
the time-delay air-out mode is as follows:
closing a compressor, controlling an automobile air conditioner circulation mode to be an external circulation mode, and controlling a blower of the automobile air conditioner to operate for a first blowing time in a first gear;
after the blower of the automobile air conditioner runs for a first blowing time in a first gear, the blower of the automobile air conditioner is controlled to run for a second blowing time in a second gear, and the first gear is higher than the second gear.
2. The self-cleaning method of an air conditioner for a vehicle according to claim 1, wherein the calculating the dust adsorption amount according to the air volume of the blower and the concentration of the fine particles, and accumulating the dust adsorption amount to obtain an accumulated dust amount, comprises:
calculate the dust adsorption amount a0=v×t×p× (1-K) for each operating condition of the automotive air conditioner, wherein: a0 is dust adsorption quantity, V is air quantity of the air blower under the running working condition, t is running time of the running working condition, P is fine particulate matter concentration of the running working condition, and K is filtering efficiency of an automobile air conditioner filter screen on fine particulate matters;
and accumulating the dust adsorption amounts of all the operating conditions to obtain accumulated dust amount.
3. The self-cleaning method of an automobile air conditioner according to claim 2, wherein the real-time acquisition of the air quantity of a blower of the automobile air conditioner and the concentration of fine particles in the automobile comprises the following steps:
and acquiring the air quantity of the blower corresponding to the current working condition of the automobile air conditioner, and acquiring the concentration of fine particles in the automobile in real time.
4. The self-cleaning method of an automotive air conditioner according to claim 1, wherein if the accumulated dust amount is equal to or larger than a dust amount threshold value, the self-cleaning operation of the automotive air conditioner is performed, specifically comprising:
if the accumulated dust amount is greater than or equal to a dust amount threshold value, executing self-cleaning operation of the automobile air conditioner; otherwise, acquiring accumulated use time of the air blower of the automobile air conditioner, and executing self-cleaning operation of the automobile air conditioner if the accumulated use time is greater than or equal to a time threshold.
5. The self-cleaning method of an automotive air conditioner according to claim 1, characterized in that said performing self-cleaning operation of an automotive air conditioner specifically comprises:
and sending a self-cleaning prompt of the automobile air conditioner, and executing a self-cleaning process of the automobile air conditioner after receiving a self-cleaning instruction of the automobile air conditioner.
6. The self-cleaning method of an automotive air conditioner according to claim 1, wherein the frosting mode is:
controlling a blower of an automobile air conditioner to run in a second gear, and setting the target temperature of an evaporator to be a second temperature which is less than or equal to the first temperature;
and if the ambient temperature is higher than the temperature in the vehicle, controlling the vehicle air conditioner circulation mode to be an internal circulation mode, and if the ambient temperature is lower than the temperature in the vehicle, controlling the vehicle air conditioner circulation mode to be an external circulation mode.
7. The self-cleaning method of an automotive air conditioner according to claim 1, wherein the defrosting mode is:
and controlling the blower of the automobile air conditioner to run at the maximum gear, closing the compressor, and controlling the circulation mode of the automobile air conditioner to be an external circulation mode.
8. The self-cleaning method of an automotive air conditioner according to any one of claims 1 to 7, characterized in that the evaporator surface of the automotive air conditioner is coated with a nano zinc oxide coating.
9. An electronic device, comprising:
at least one processor; the method comprises the steps of,
a memory communicatively coupled to at least one of the processors; wherein, the liquid crystal display device comprises a liquid crystal display device,
the memory stores instructions executable by at least one of the processors to enable the at least one processor to perform the auto air conditioning self-cleaning method according to any one of claims 1 to 8.
10. A storage medium storing computer instructions which, when executed by a computer, are adapted to carry out all the steps of a self-cleaning method of an automotive air conditioner according to any one of claims 1 to 8.
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