CN116928913A - Method and device for detecting refrigerant quantity of automobile air conditioner - Google Patents
Method and device for detecting refrigerant quantity of automobile air conditioner Download PDFInfo
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- CN116928913A CN116928913A CN202311110107.7A CN202311110107A CN116928913A CN 116928913 A CN116928913 A CN 116928913A CN 202311110107 A CN202311110107 A CN 202311110107A CN 116928913 A CN116928913 A CN 116928913A
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 219
- 238000000034 method Methods 0.000 title claims abstract description 69
- 238000001514 detection method Methods 0.000 claims abstract description 36
- 238000004422 calculation algorithm Methods 0.000 claims abstract description 21
- 238000004590 computer program Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 12
- 238000012360 testing method Methods 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 9
- 238000004781 supercooling Methods 0.000 description 8
- 238000004378 air conditioning Methods 0.000 description 7
- 238000005057 refrigeration Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 6
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000007791 dehumidification Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B45/00—Arrangements for charging or discharging refrigerant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
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- General Engineering & Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The application provides a method and a device for detecting the refrigerant quantity of an automobile air conditioner, wherein the method comprises the following steps: when the refrigerant detection program is started, the last starting time and the current ambient temperature of the refrigerant detection program are read; judging whether a refrigerant detection flow needs to be started according to the last starting time and the current environment temperature; if yes, starting a corresponding system mode according to the current environment temperature; in a system mode, when the current system running state is detected to be in a stable state, predicting a final filling quantity predicted value according to a preset refrigerant filling quantity predicting algorithm; detecting the current refrigerant quantity in the system; determining the current filling platform level according to the system mode, the final filling quantity predicted value and the current refrigerant quantity; and outputting corresponding refrigerant quantity prompt information according to the current filling platform level. Therefore, the method and the device can timely monitor the refrigerant quantity in the system, timely find out the insufficient refrigerant quantity and avoid causing damage to the compressor.
Description
Technical Field
The application relates to the technical field of heat management, in particular to a method and a device for detecting the refrigerant quantity of an automobile air conditioner.
Background
At present, a heat pump air conditioning system is generally adopted in an electric automobile heat management system, the heat pump system has low energy consumption, the duration of winter can be improved, the time for using a heat pump mode under the low-temperature working condition is increased, the total operation time of the heat pump management system is obviously increased, the refrigerant in the air conditioning system can have certain leakage, the energy consumption of the system is increased while the refrigeration and heating performance is reduced due to insufficient refrigerant quantity, and the normal operation of the refrigerant circulation in a system partially using a direct heat pump is directly related to the functional use of the system, so that the heat pump management system of the electric automobile needs to pay attention to the refrigerant quantity of the system, but the refrigerant quantity in the actual system is difficult to predict due to complex and variable use scenes of an actual automobile. In the prior art, the problem that the multi-filling amount of the liquid storage tank is increased during filling is solved, the phenomenon that the refrigerant amount is insufficient in the operation process can not be found in time still, a technician is required to check after the failure, the long-time refrigerant shortage has an influence on the reliability of system components, and the compressor is easy to damage is solved. Therefore, the existing method cannot monitor the refrigerant quantity in real time, so that the defect of insufficient refrigerant quantity cannot be found in time, and the damage to the compressor is easily caused.
Disclosure of Invention
The embodiment of the application aims to provide a method and a device for detecting the refrigerant quantity of an automobile air conditioner, which can timely monitor the refrigerant quantity in a system, timely find out the insufficient refrigerant quantity and avoid causing damage to a compressor.
The first aspect of the application provides a method for detecting the refrigerant quantity of an automobile air conditioner, which comprises the following steps:
when a refrigerant detection program is started, reading the last starting time and the current ambient temperature of the refrigerant detection program;
judging whether a refrigerant detection flow needs to be started according to the last starting time and the current environment temperature;
if yes, starting a corresponding system mode according to the current environment temperature;
in the system mode, when the current system running state is detected to be in a stable state, predicting a final filling quantity predicted value according to a preset refrigerant filling quantity predicting algorithm;
detecting the current refrigerant quantity in the system;
determining a current filling platform level according to the system mode, the final filling quantity predicted value and the current refrigerant quantity;
and outputting corresponding refrigerant quantity prompt information according to the current filling platform grade.
In the implementation process, the method can read the last starting time and the current environment temperature of the refrigerant detection program after the refrigerant detection program is started; then, judging whether a refrigerant detection flow needs to be started according to the last starting time and the current environment temperature; when the refrigerant detection flow needs to be started, starting a corresponding system mode according to the current environment temperature; then, in the system mode, when the current system running state is detected to be in a stable state, predicting a final filling quantity predicted value according to a preset refrigerant filling quantity predicting algorithm; then, detecting the current refrigerant quantity in the system; finally, determining the current filling platform level according to the system mode, the final filling quantity predicted value and the current refrigerant quantity; and outputting corresponding refrigerant quantity prompt information according to the current filling platform grade. Therefore, the method can timely monitor the refrigerant quantity in the system, timely find out the refrigerant quantity shortage and avoid the damage of the compressor.
Further, the method further comprises:
and after detecting that the refrigerant detection program is charged, starting the refrigerant detection program, and executing the reading of the last starting time and the current environment temperature of the refrigerant detection program.
Further, the starting the corresponding system mode according to the current environment temperature includes:
determining a system mode according to the current ambient temperature;
acquiring preset control parameters of the system mode;
and starting the system mode based on the preset control parameters.
Further, the method further comprises:
detecting whether the current system running state is in a stable state or not according to a preset state threshold value;
if yes, the final filling quantity predicted value is predicted according to a preset refrigerant filling quantity predicted algorithm.
Further, the predicting the final filling amount predicted value according to the preset refrigerant filling amount predicting algorithm includes:
acquiring current system state parameters;
calculating the filling quantity according to a preset refrigerant filling quantity prediction algorithm and the current system state parameter;
and calculating a final filling quantity predicted value according to the preset weight value and the filling quantity.
The second aspect of the present application provides an automobile air conditioner refrigerant amount detection device, which includes:
the reading unit is used for reading the last starting time and the current ambient temperature of the refrigerant detection program after the refrigerant detection program is started;
the judging unit is used for judging whether the refrigerant detection flow needs to be started according to the last starting time and the current environment temperature;
the starting unit is used for starting a corresponding system mode according to the current environment temperature when judging that the refrigerant detection flow needs to be started;
the prediction unit is used for predicting a final filling quantity predicted value according to a preset refrigerant filling quantity prediction algorithm when the current system running state is detected to be in a stable state in the system mode;
the detection unit is used for detecting the current refrigerant quantity in the system;
the determining unit is used for determining the current filling platform level according to the system mode, the final filling quantity predicted value and the current refrigerant quantity;
and the output unit is used for outputting corresponding refrigerant quantity prompt information according to the current filling platform grade.
In the implementation process, the device can read the last starting time and the current environment temperature of the refrigerant detection program through the reading unit after the refrigerant detection program is started; judging whether a refrigerant detection flow needs to be started or not according to the last starting time and the current environment temperature through a judging unit; when judging that the refrigerant detection flow needs to be started through the starting unit, starting a corresponding system mode according to the current environment temperature; under the system mode, when the current system running state is detected to be in a stable state, predicting a final filling quantity predicted value according to a preset refrigerant filling quantity predicting algorithm by a predicting unit; the current refrigerant quantity in the detection system is detected by the detection unit; determining a current filling platform level according to the system mode, the final filling quantity predicted value and the current refrigerant quantity through a determining unit; and outputting corresponding refrigerant quantity prompt information according to the current filling platform level through an output unit. Therefore, the device can timely monitor the refrigerant quantity in the system, timely find out the refrigerant quantity is insufficient, and avoid causing the damage of the compressor.
Further, the device for detecting the refrigerant quantity of the automobile air conditioner further comprises:
and the starting unit is used for starting the refrigerant detection program after detecting that the refrigerant detection program is charged, and triggering the reading unit to read the last starting time and the current environment temperature of the refrigerant detection program.
Further, the starting unit includes:
a determining subunit, configured to determine a system mode according to the current ambient temperature when it is determined that the refrigerant detection flow needs to be started;
the first acquisition subunit is used for acquiring preset control parameters of the system mode;
and the promoter unit is used for starting the system mode based on the preset control parameters.
Further, the device for detecting the refrigerant quantity of the automobile air conditioner further comprises:
the detection unit is also used for detecting whether the current system running state is in a stable state or not according to a preset state threshold value;
the prediction unit is used for predicting a final filling quantity predicted value according to a preset refrigerant filling quantity prediction algorithm when the current system running state is in the stable state in the system mode.
Further, the prediction unit includes:
the second acquisition subunit is used for acquiring the current system state parameters;
the calculating subunit is used for calculating the filling quantity according to a preset refrigerant filling quantity prediction algorithm and the current system state parameter;
the calculating subunit is further configured to calculate a final filling amount predicted value according to a preset weight value and the filling amount.
A third aspect of the present application provides an electronic device, including a memory and a processor, where the memory is configured to store a computer program, and the processor is configured to execute the computer program to cause the electronic device to execute the method for detecting the refrigerant amount of the air conditioner of the vehicle according to any one of the first aspect of the present application.
A fourth aspect of the present application provides a computer readable storage medium storing computer program instructions which, when read and executed by a processor, perform the method for detecting the refrigerant quantity of an automotive air conditioner according to any one of the first aspect of the present application.
The beneficial effects of the application are as follows: the method and the device can timely monitor the refrigerant quantity in the system, timely find out the refrigerant quantity shortage and avoid the damage of the compressor.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a method for detecting the refrigerant quantity of an automotive air conditioner according to an embodiment of the application;
fig. 2 is a schematic flow chart of another method for detecting the refrigerant quantity of an air conditioner of an automobile according to an embodiment of the application;
fig. 3 is a schematic structural diagram of a refrigerant quantity detection device of an automotive air conditioner according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of another refrigerant quantity detecting device for an automotive air conditioner according to an embodiment of the present application;
FIG. 5 is a schematic diagram of an outlet supercooling degree-refrigerant charge curve according to an embodiment of the present application;
FIG. 6 is a schematic diagram of an air conditioning system filling curve according to an embodiment of the present application;
fig. 7 is a schematic flow chart of an exemplary method for detecting the refrigerant quantity of an automotive air conditioner according to an embodiment of the application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.
Example 1
Referring to fig. 1, fig. 1 is a flow chart of a method for detecting refrigerant quantity of an air conditioner of an automobile according to the present embodiment. The method for detecting the refrigerant quantity of the automobile air conditioner comprises the following steps:
s101, after a refrigerant detection program is started, the last starting time and the current ambient temperature of the refrigerant detection program are read.
S102, judging whether a refrigerant detection flow needs to be started according to the last starting time and the current environment temperature, and if yes, executing a step S103; if not, the process is ended.
S103, starting a corresponding system mode according to the current environment temperature.
S104, under a system mode, when the current system running state is detected to be in a stable state, predicting a final filling quantity predicted value according to a preset refrigerant filling quantity predicting algorithm.
S105, detecting the current refrigerant quantity in the system.
S106, determining the current filling platform grade according to the system mode, the final filling quantity predicted value and the current refrigerant quantity.
And S107, outputting corresponding refrigerant quantity prompt information according to the current filling platform level.
At present, the heat pump air conditioning system adopted by the electric automobile heat management system has the advantages of low energy consumption and improvement of winter endurance. However, the service time of the newly added heat pump mode under the low-temperature working condition is increased, the total operation time of the thermal management system is obviously increased, the problem of reduced refrigerating and heating performance caused by insufficient refrigerant quantity due to certain leakage in the air conditioning system is caused, meanwhile, the energy consumption of the system is increased, and the normal operation of the refrigerant circulation in the system which uses the direct heat pump is partially used in a direct relation to the function use of the system, so that the thermal management system of the electric automobile needs to pay attention to the refrigerant filling quantity of the system, and the actual use scene of the electric automobile is complex and changeable, so that the refrigerant quantity in the actual system is difficult to predict. Aiming at the situation, the problem that the refrigerant quantity is insufficient in the operation process of the refrigerant quantity can not be found in time at present by adding the liquid storage tank to the filling quantity, the refrigerant quantity can be identified by checking after the failure of a technician, and the reliability of the system components is influenced by the long-time refrigerant shortage and the damage of the compressor is easily caused. Therefore, the application provides a method for monitoring the refrigerant quantity of a heat pump system, which can judge whether the heat pump system enters a refrigerant detection program or not through a set working condition, obtain the refrigerant quantity in a system operation parameter judging system in a preset system control parameter, and then provide corresponding suggestions by combining a filling test.
Specifically, the method can enter a preset refrigerant quantity detection flow through specific working condition scene recognition, and meanwhile, the refrigerant state parameters of key position measuring points in the system are obtained by combining control parameters of corresponding modes. Then, calculating the filling quantity based on a filling quantity prediction formula, and evaluating the refrigerant quantity of the system through a weighting system; the filling quantity curve fitting formula is from a system filling quantity test, and the test working condition comprises refrigerating and heating mode requirements.
In this embodiment, the filling level of the system filling level prediction formula source is obtained after the test. The test working condition needs to cover refrigeration and heat pump heating filling tests. And presetting system control parameters in the test process to obtain system state parameters with different filling amounts.
In this embodiment, the execution subject of the method may be a computing device such as a computer or a server, which is not limited in this embodiment.
In this embodiment, the execution body of the method may be an intelligent device such as a smart phone or a tablet computer, which is not limited in this embodiment.
Therefore, by implementing the method for detecting the refrigerant quantity of the automobile air conditioner, the refrigerant quantity in the system can be monitored in time, the defect of the refrigerant quantity can be found in time, and the damage to the compressor is avoided.
Example 2
Referring to fig. 2, fig. 2 is a flow chart of a method for detecting the refrigerant amount of an air conditioner of an automobile according to the present embodiment. The method for detecting the refrigerant quantity of the automobile air conditioner comprises the following steps:
s201, after the end of the charging of the refrigerant detection program is detected, starting the refrigerant detection program.
In this embodiment, the usage scenario of the real vehicle is complex and variable. Therefore, in order to ensure the scene stability, the refrigerant detection program is prevented from interfering the use requirement of the air conditioner of the customer, the refrigerant detection program is performed after the charging is finished, and otherwise, the refrigerant detection program is not entered.
S202, after the refrigerant detection program is started, the last starting time and the current ambient temperature of the refrigerant detection program are read.
S203, judging whether a refrigerant detection flow needs to be started according to the last starting time and the current environment temperature, and if yes, executing steps S204-S207; if not, the process is ended.
In this embodiment, the method further reads the last start time and the current ambient temperature of the refrigerant detection program, and respectively judges the start time and the ring temperature of the refrigerant detection program from the last time, and only when the start period and the preset ring temperature range are satisfied, the refrigerant detection process is entered, otherwise, the refrigerant detection process is not entered.
S204, determining a system mode according to the current environment temperature.
S205, acquiring preset control parameters of a system mode.
In this embodiment, the method may determine a system mode according to the ring temperature, and read a control parameter preset in the mode to start operation. The ring temperature mode is described as follows:
(1) The corresponding refrigeration mode is 28-35 ℃, and preset parameters (specific values are confirmed after calibration): setting a system SOV valve mode, an expansion valve state, a blower gear and an air outlet mode, and cooling fan duty ratio and compressor rotating speed;
(2) The corresponding heat pump mode is between 0 and minus 10 ℃, and preset parameters (specific values are confirmed after calibration): the system SOV valve mode is set, the expansion valve state, the blower gear and the air outlet mode, the cooling fan duty ratio, the water pump duty ratio and the compressor rotating speed are set.
S206, starting a system mode based on preset control parameters.
S207, in a system mode, detecting whether the current system running state is in a stable state according to a preset state threshold value, and if so, executing steps S208-S213; if not, the process is ended.
S208, acquiring current system state parameters.
In the embodiment, the method can record the system state parameters after the system running state is stable, wherein the system state stability means that the temperature fluctuation is less than 1 ℃ within 2min and the pressure fluctuation is less than 0.5bar within 2 min;
refrigeration mode parameters: exhaust pressure, exhaust temperature, outer condenser outlet subcooling;
heating mode parameters: the exhaust pressure, the suction pressure, the supercooling degree of the outlet of the internal condenser and the superheat degree of the suction.
S209, calculating the filling amount according to a preset refrigerant filling amount prediction algorithm and current system state parameters.
S210, according to a preset weight value and a filling amount calculation, a final filling amount predicted value is obtained.
In this embodiment, the system state parameter after the operation of the refrigerant detection program may be calculated by referring to the filling amount prediction formula. Wherein different mode filling amount estimations are not entered. In particular, the method comprises the steps of,
cooling mode: the supercooling degree calculates the filling quantity, the exhaust pressure estimates the filling quantity, and the exhaust estimates the filling quantity;
heating mode: the supercooling degree calculates the filling amount, the superheat degree calculates the filling amount, and the exhaust pressure calculates the filling amount;
further, after the obtained filling amount is calculated according to a preset weight value, a final filling amount predicted value is calculated again.
In this embodiment, the filling amount prediction formula is obtained by testing a certain vehicle type, the formula is obtained by a system filling test, and the more the test working condition points are, the more the predicted temperature scenes are; the filling amount prediction formula can be replaced by a filling amount query Map table.
In this embodiment, the function relationship corresponding to the heat pump working condition outlet supercooling degree estimation filling amount curve is as follows: f (x) =a x 5+b x 4+c x 3+d x 2+e x+f. Referring to fig. 5, fig. 5 is a schematic diagram showing an outlet supercooling degree-refrigerant charge curve.
Referring to fig. 6, fig. 6 shows a schematic diagram of an air conditioning system charge curve. Taking the leftmost row (three points) in fig. 6 as an example, the bottommost curve corresponds to OHX outlet subcooling, the middle curve corresponds to discharge pressure bar, and the topmost curve corresponds to compressor discharge temperature.
S211, detecting the current refrigerant quantity in the system.
S212, determining the current filling platform grade according to the system mode, the final filling quantity predicted value and the current refrigerant quantity.
S213, outputting corresponding refrigerant quantity prompt information according to the current filling platform level.
In this embodiment, based on the principle of determining the amount of refrigerant in the system, the method may be divided into three levels according to the refrigeration/heating mode filling platform, as follows:
class a: the refrigerant quantity is proper and is positioned in the filling platform, and the predicted filling quantity is larger than the filling quantity of the filling platform;
class B: the refrigerant quantity is leaked and insufficient, part of the refrigerant exists in the liquid storage tank before the filling platform enters, and the supercooling degree filling quantity is less than the predicted filling quantity and less than the filling quantity of the platform;
grade C: the refrigerant quantity is leaked and insufficient in a large quantity, and the predicted filling quantity is less than the supercooling degree filling quantity of the system.
In this embodiment, the refrigerant quantity lacks severity: grade C > grade B > grade A;
class a: the refrigerant quantity of the system is optimal;
class B: suggesting to go to a repair shop to supplement the refrigerant in time;
grade C: it is recommended to make up the refrigerant as soon as possible and limit the use of the air conditioning system.
In this embodiment, the filling amount prediction method disclosed by the application comprises a high-temperature refrigeration mode and a low-temperature heat pump heating mode, and the same refrigeration dehumidification and heating dehumidification modes at the temperature of between 10 and 25 ℃ can be covered by combining the corresponding filling amount prediction curve application scenes.
Referring to fig. 7, fig. 7 is a schematic flow chart illustrating an exemplary method for detecting the refrigerant quantity of an air conditioner of a vehicle.
In this embodiment, the execution subject of the method may be a computing device such as a computer or a server, which is not limited in this embodiment.
In this embodiment, the execution body of the method may be an intelligent device such as a smart phone or a tablet computer, which is not limited in this embodiment.
Therefore, by implementing the method for detecting the refrigerant quantity of the automobile air conditioner, the refrigerant quantity in the system can be monitored in time, the defect of the refrigerant quantity can be found in time, and the damage to the compressor is avoided.
Example 3
Referring to fig. 3, fig. 3 is a schematic structural diagram of a refrigerant quantity detecting device of an automotive air conditioner according to the present embodiment. As shown in fig. 3, the vehicle air conditioner refrigerant amount detecting device includes:
a reading unit 310, configured to read the last start time and the current ambient temperature of the refrigerant detection program after the refrigerant detection program is started;
a judging unit 320, configured to judge whether the refrigerant detection process needs to be started according to the last start time and the current ambient temperature;
the starting unit 330 is configured to start a corresponding system mode according to the current ambient temperature when it is determined that the refrigerant detection flow needs to be started;
the prediction unit 340 is configured to predict a final injection quantity predicted value according to a preset refrigerant injection quantity prediction algorithm when detecting that the current system operation state is in a stable state in the system mode;
a detecting unit 350 for detecting a current refrigerant amount in the system;
a determining unit 360, configured to determine a current filling platform level according to the system mode, the final filling amount prediction value, and the current refrigerant amount;
and the output unit 370 is used for outputting corresponding refrigerant quantity prompt information according to the current filling platform level.
In this embodiment, the explanation of the refrigerant quantity detection device of the air conditioner of the automobile may refer to the description in embodiment 1 or embodiment 2, and the description is not repeated in this embodiment.
Therefore, the refrigerant quantity detection device of the automobile air conditioner, which is described by implementing the embodiment, can timely monitor the refrigerant quantity in the system, timely find out the insufficient refrigerant quantity and avoid the damage of the compressor.
Example 4
Referring to fig. 4, fig. 4 is a schematic structural diagram of a refrigerant quantity detecting device of an automotive air conditioner according to the present embodiment. As shown in fig. 4, the vehicle air conditioner refrigerant amount detecting device includes:
a reading unit 310, configured to read the last start time and the current ambient temperature of the refrigerant detection program after the refrigerant detection program is started;
a judging unit 320, configured to judge whether the refrigerant detection process needs to be started according to the last start time and the current ambient temperature;
the starting unit 330 is configured to start a corresponding system mode according to the current ambient temperature when it is determined that the refrigerant detection flow needs to be started;
the prediction unit 340 is configured to predict a final injection quantity predicted value according to a preset refrigerant injection quantity prediction algorithm when detecting that the current system operation state is in a stable state in the system mode;
a detecting unit 350 for detecting a current refrigerant amount in the system;
a determining unit 360, configured to determine a current filling platform level according to the system mode, the final filling amount prediction value, and the current refrigerant amount;
and the output unit 370 is used for outputting corresponding refrigerant quantity prompt information according to the current filling platform level.
As an alternative embodiment, the device for detecting the refrigerant quantity of the air conditioner of the automobile further comprises:
the starting unit 380 is configured to start the refrigerant detection program when it is detected that the refrigerant detection program is charged, and trigger the reading unit 310 to read the last start time and the current ambient temperature of the refrigerant detection program.
As an alternative embodiment, the starting unit 380 includes:
a determining subunit 381, configured to determine a system mode according to the current ambient temperature when it is determined that the refrigerant detection process needs to be started;
a first obtaining subunit 382, configured to obtain preset control parameters of the system mode;
a promoter unit 383 for starting the system mode based on preset control parameters.
As an alternative embodiment, the device for detecting the refrigerant quantity of the air conditioner of the automobile further comprises:
the detecting unit 350 is further configured to detect whether the current system running state is in a stable state according to a preset state threshold;
the prediction unit 340 is configured to predict a final injection quantity predicted value according to a preset refrigerant injection quantity prediction algorithm when the current system operation state is in a steady state in the system mode.
As an alternative embodiment, the prediction unit 340 includes:
a second obtaining subunit 341, configured to obtain a current system state parameter;
the calculating subunit 342 is configured to calculate a filling amount according to a preset refrigerant filling amount prediction algorithm and a current system state parameter;
the calculating subunit 342 is further configured to calculate a final predicted filling amount value according to the preset weight value and the filling amount.
In this embodiment, the explanation of the refrigerant quantity detection device of the air conditioner of the automobile may refer to the description in embodiment 1 or embodiment 2, and the description is not repeated in this embodiment.
Therefore, the refrigerant quantity detection device of the automobile air conditioner, which is described by implementing the embodiment, can timely monitor the refrigerant quantity in the system, timely find out the insufficient refrigerant quantity and avoid the damage of the compressor.
The embodiment of the application provides electronic equipment, which comprises a memory and a processor, wherein the memory is used for storing a computer program, and the processor runs the computer program to enable the electronic equipment to execute the method for detecting the refrigerant quantity of the automobile air conditioner in the embodiment 1 or the embodiment 2 of the application.
The embodiment of the application provides a computer readable storage medium storing computer program instructions which, when read and run by a processor, perform the method for detecting the refrigerant quantity of the air conditioner of the automobile in the embodiment 1 or the embodiment 2 of the application.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The apparatus embodiments described above are merely illustrative, for example, of the flowcharts and block diagrams in the figures that illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules in the embodiments of the present application may be integrated together to form a single part, or each module may exist alone, or two or more modules may be integrated to form a single part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. The method for detecting the refrigerant quantity of the automobile air conditioner is characterized by comprising the following steps of:
when a refrigerant detection program is started, reading the last starting time and the current ambient temperature of the refrigerant detection program;
judging whether a refrigerant detection flow needs to be started according to the last starting time and the current environment temperature;
if yes, starting a corresponding system mode according to the current environment temperature;
in the system mode, when the current system running state is detected to be in a stable state, predicting a final filling quantity predicted value according to a preset refrigerant filling quantity predicting algorithm;
detecting the current refrigerant quantity in the system;
determining a current filling platform level according to the system mode, the final filling quantity predicted value and the current refrigerant quantity;
and outputting corresponding refrigerant quantity prompt information according to the current filling platform grade.
2. The method for detecting the refrigerant quantity of an automotive air conditioner according to claim 1, further comprising:
and after detecting that the refrigerant detection program is charged, starting the refrigerant detection program, and executing the reading of the last starting time and the current environment temperature of the refrigerant detection program.
3. The method for detecting the refrigerant quantity of an automotive air conditioner according to claim 1, wherein the step of starting the corresponding system mode according to the current ambient temperature comprises the steps of:
determining a system mode according to the current ambient temperature;
acquiring preset control parameters of the system mode;
and starting the system mode based on the preset control parameters.
4. The method for detecting the refrigerant quantity of an automotive air conditioner according to claim 1, further comprising:
detecting whether the current system running state is in a stable state or not according to a preset state threshold value;
if yes, the final filling quantity predicted value is predicted according to a preset refrigerant filling quantity predicted algorithm.
5. The method for detecting the refrigerant quantity of an automotive air conditioner according to claim 1, wherein predicting the final charge quantity predicted value according to a preset refrigerant charge quantity predicting algorithm comprises:
acquiring current system state parameters;
calculating the filling quantity according to a preset refrigerant filling quantity prediction algorithm and the current system state parameter;
and calculating a final filling quantity predicted value according to the preset weight value and the filling quantity.
6. The utility model provides a vehicle air conditioner refrigerant volume detection device which characterized in that, vehicle air conditioner refrigerant volume detection device includes:
the reading unit is used for reading the last starting time and the current ambient temperature of the refrigerant detection program after the refrigerant detection program is started;
the judging unit is used for judging whether the refrigerant detection flow needs to be started according to the last starting time and the current environment temperature;
the starting unit is used for starting a corresponding system mode according to the current environment temperature when judging that the refrigerant detection flow needs to be started;
the prediction unit is used for predicting a final filling quantity predicted value according to a preset refrigerant filling quantity prediction algorithm when the current system running state is detected to be in a stable state in the system mode;
the detection unit is used for detecting the current refrigerant quantity in the system;
the determining unit is used for determining the current filling platform level according to the system mode, the final filling quantity predicted value and the current refrigerant quantity;
and the output unit is used for outputting corresponding refrigerant quantity prompt information according to the current filling platform grade.
7. The apparatus for detecting the amount of refrigerant in an automotive air conditioner according to claim 6, further comprising:
and the starting unit is used for starting the refrigerant detection program after detecting that the refrigerant detection program is charged, and triggering the reading unit to read the last starting time and the current environment temperature of the refrigerant detection program.
8. The refrigerant quantity detecting device for an automotive air conditioner according to claim 6, wherein said starting unit includes:
a determining subunit, configured to determine a system mode according to the current ambient temperature when it is determined that the refrigerant detection flow needs to be started;
the first acquisition subunit is used for acquiring preset control parameters of the system mode;
and the promoter unit is used for starting the system mode based on the preset control parameters.
9. An electronic device comprising a memory for storing a computer program and a processor that runs the computer program to cause the electronic device to execute the method of detecting the amount of refrigerant in an air conditioner of an automobile according to any one of claims 1 to 5.
10. A readable storage medium having stored therein computer program instructions which, when read and executed by a processor, perform the method of detecting the refrigerant quantity of an automotive air conditioner according to any one of claims 1 to 5.
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| CN202311110107.7A CN116928913A (en) | 2023-08-30 | 2023-08-30 | Method and device for detecting refrigerant quantity of automobile air conditioner |
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| CN202311110107.7A CN116928913A (en) | 2023-08-30 | 2023-08-30 | Method and device for detecting refrigerant quantity of automobile air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118132949A (en) * | 2024-01-25 | 2024-06-04 | 珠海胜达电子有限公司 | Automobile air conditioning fault prediction method, system and medium based on data analysis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118132949A (en) * | 2024-01-25 | 2024-06-04 | 珠海胜达电子有限公司 | Automobile air conditioning fault prediction method, system and medium based on data analysis |
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