CN111002785A - Automobile air conditioner diagnosis method and system and storage medium - Google Patents
Automobile air conditioner diagnosis method and system and storage medium Download PDFInfo
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- CN111002785A CN111002785A CN201911222560.0A CN201911222560A CN111002785A CN 111002785 A CN111002785 A CN 111002785A CN 201911222560 A CN201911222560 A CN 201911222560A CN 111002785 A CN111002785 A CN 111002785A
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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
- B60H1/00978—Control systems or circuits characterised by failure of detection or safety means; Diagnostic methods
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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
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The embodiment of the invention discloses a method, a system, equipment and a storage medium for diagnosing an automobile air conditioner. The method comprises the following steps: acquiring air conditioner detection data; prompting sensory data required to be input by a user according to the air conditioner diagnosis data; acquiring sensory data input by a user; and determining the running state of the automobile air conditioner according to the sensory data and the air conditioner detection data input by the user. The method has the advantages of more comprehensive acquired technical parameters, more accurate acquired diagnosis result, no dependence on manual judgment, avoidance of influence of manual judgment on the accuracy of the diagnosis result, simplicity in operation, higher diagnosis speed and more accurate diagnosis result.
Description
Technical Field
The invention relates to the technical field of air conditioner fault diagnosis, in particular to a method, a system, equipment and a storage medium for diagnosing an automobile air conditioner.
Background
The automobile air conditioning system, especially the automobile indoor refrigerating system, consists of several subsystems including air conditioning loop system, refrigerating medium, wind power transmission system, electronic control system, etc. The air conditioning loop is a closed pipeline system for providing mixed medium flow of refrigerant (also called refrigerant) and refrigeration oil to generate heat exchange, and generally comprises a compressor, a condenser, a drying tank, an expansion valve, an evaporation tank and the like. The refrigeration medium is a flowing medium which flows in the air conditioning loop to generate heat exchange and is a mixture of a refrigerant and refrigeration oil, wherein the refrigerant is a heat exchange medium, and the refrigeration oil is a lubricating medium. The wind power transmission system is a transmission system which transmits cold air generated by heat exchange on the surface of the evaporation box to the interior of the automobile to achieve the purpose of refrigeration. The ELECTRONIC CONTROL system is a CONTROL system which is used for an automobile ELECTRONIC CONTROL UNIT (Electronic CONTROL Unit) to send corresponding working instructions to air-conditioning loop system components and wind power transmission system components after operation through a CONTROL UNIT according to signals of an air-conditioning air outlet temperature sensor, an automobile indoor temperature sensor, an outdoor environment temperature sensor, a throttle position sensor, temperature and wind power adjusting setting of an air-conditioning CONTROL panel, pressure and temperature sensors in an air-conditioning loop and the like.
When the automobile air conditioner is used for a period of time, the air conditioner can be operated badly due to the deterioration of refrigerant, the deterioration of refrigerant oil, the mechanical abrasion or control failure of air conditioner components, the failure of a sensor or an electric control system, the failure of a wind power transmission system and the like.
The existing air conditioner fault diagnosis method is that a maintenance technician in an automobile repair factory performs a series of complicated detections on an automobile air conditioner according to personal knowledge and experience, and then performs manual diagnosis according to own experience and detection results. At present, some technologies for judging the working condition of the automobile air conditioner by measuring parameters such as high-low pressure, air outlet temperature and the like of the automobile air conditioning system exist, but the measured parameters are not comprehensive, and the system diagnosis is lacked, so that the judgment result has larger deviation from the actual result.
Disclosure of Invention
In view of the above, the invention provides a method for diagnosing an automobile air conditioner, which realizes rapid diagnosis of an operation fault of the automobile air conditioner and solves the problem that manual diagnosis depends on experience.
In order to solve the technical problems, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a method for diagnosing an air conditioner of a vehicle, the method comprising:
acquiring air conditioner detection data;
prompting sensory data required to be input by a user according to the air conditioner diagnosis data;
acquiring sensory data input by a user;
and determining the running condition of the automobile air conditioner according to the sensory data input by the user and the air conditioner detection data.
In a second aspect, the present invention provides a vehicle air conditioner diagnostic system, comprising:
the first acquisition module is used for acquiring air conditioner detection data;
the prompting module is used for prompting sensory data required to be input by a user according to the air conditioner diagnosis data;
the second acquisition module is used for acquiring sensory data input by a user;
and the diagnosis module is used for determining the running state of the automobile air conditioner according to the sensory data input by the user and the air conditioner detection data.
In a third aspect, the present invention provides a vehicle air conditioner diagnosis device, which includes a memory and a processor, wherein the memory stores a computer program capable of running on the processor, and the processor executes the computer program to implement the vehicle air conditioner diagnosis method.
In a fourth aspect, the present invention provides a computer-readable storage medium storing a computer program comprising program instructions that, when executed, implement the foregoing vehicle air conditioner diagnostic method.
The automobile air conditioner diagnosis method provided by the invention has the advantages that the technical parameters are more comprehensive, the obtained diagnosis result is more accurate, the influence of manual judgment on the accuracy of the diagnosis result is avoided without depending on manual judgment, the operation is simple, the diagnosis speed is higher, and the diagnosis result is more accurate.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only part of the embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of a vehicle air conditioner diagnosis method according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a method for diagnosing an air conditioner of a vehicle according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a vehicle air conditioner diagnosis system according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a vehicle air conditioner diagnosis device according to a fourth embodiment of the present invention.
Detailed Description
The technical solution in the implementation of the present application is described clearly and completely below with reference to the drawings in the embodiments of the present application. It is to be understood that the specific embodiments described herein are merely illustrative of some, and not restrictive, of the current application. It should be further noted that, based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without any creative effort belong to the protection scope of the present application.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Furthermore, the terms "first," "second," and the like may be used herein to describe various orientations, actions, steps, elements, or the like, but the orientations, actions, steps, or elements are not limited by these terms. These terms are only used to distinguish one direction, action, step or element from another direction, action, step or element. For example, a first region could be termed a second region, and, similarly, a second region could be termed a first region, without departing from the scope of the present invention. The first region and the second region are both regions, but they are not the same region. The terms "first", "second", etc. are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. It should be noted that when one portion is referred to as being "secured to" another portion, it may be directly on the other portion or there may be an intervening portion. When a portion is said to be "connected" to another portion, it may be directly connected to the other portion or intervening portions may be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the steps as a sequential process, many of the steps can be performed in parallel, concurrently or simultaneously. In addition, the order of the steps may be rearranged. A process may be terminated when its operations are completed, but may have additional steps not included in the figure. A process may correspond to a method, a function, a procedure, a subroutine, a subprogram, etc.
Example one
Referring to fig. 1, the present embodiment provides a method for diagnosing an automotive air conditioner, which may be applied to a system capable of diagnosing an automotive air conditioner, where the system may obtain various technical parameters of the automotive air conditioner, perform logical operation based on the technical parameters, and automatically determine the operating conditions of the automotive air conditioner and each component. Specifically, the method comprises the following steps:
and S110, acquiring air conditioner detection data.
The failure condition of the automobile air conditioner is usually complex, when a certain part of the automobile air conditioner fails, the external appearance of the automobile air conditioner can have various expression forms, and similarly, when the appearance abnormality of a certain part related to the automobile air conditioner is detected, the automobile air conditioner can be caused by the fact that the certain part of the automobile air conditioner fails or can be caused by the fact that a plurality of parts fail simultaneously.
The diagnosis of the vehicle air conditioner needs to be based on various technical parameters of the vehicle air conditioner system, and the air conditioner detection data acquired in step S110 in this embodiment refers to the technical parameters that can be detected by the electronic detection module, and illustratively, the air conditioner detection data includes refrigerant concentration, high and low pressure, ambient temperature and air outlet temperature, and of course, the technical parameters in the air conditioner detection data may be actually adjusted according to different devices and different requirements for detection.
And S120, prompting sensory data required to be input by a user according to the air conditioner diagnosis data.
In consideration of various and complex reasons of the fault of the automobile air conditioner, many technical parameters are often needed for accurately diagnosing the fault reason of the automobile air conditioner, and the needed technical parameters can be obtained through the electronic detection module, and also many technical parameters which cannot be obtained through the electronic detection module or can be obtained through the electronic detection module but are high in cost, for example, whether a certain device is damaged needs to be detected, and a result is difficult to be directly detected through the electronic detection module, so that the user is prompted by other technical parameters which need to be obtained in the step S120, and the technical parameters are obtained through information directly obtained by senses of the user, such as eyes, are corresponding to the detection data, called as sense data, and represent technical parameters obtained based on the perception of the user. Specifically, the manner of prompting the user may be various, and may be displayed in text or pictures through a display screen, and played in voice through a speaker, which is not limited herein. In an alternative embodiment, the sensory data may also be sorted into a corresponding look-up table or data list according to the historical data, and the user may confirm one or more specific data in the corresponding sensory data look-up table or data list according to the sensory information acquired by the sense of five sense organs.
In some embodiments, the sensory data that the user needs to input is specifically which technical parameters are affected by the air conditioner detection data, because the diagnosis process of the automobile air conditioner is actually a troubleshooting process, after a certain technical parameter is detected, a possible fault condition can be preliminarily judged through a diagnosis algorithm, that is, many fault conditions are eliminated at this time, so that a more accurate diagnosis result can be obtained only by eliminating or confirming the possible fault condition through the sensory data of the user, therefore, in the step, the sensory data that the user needs to input is determined according to the air conditioner diagnosis data, and then the user is prompted to obtain the corresponding technical parameter through sensory perception.
For example, in some embodiments, the sensory data input by the user includes one or more of whether the belt has cracks, whether the wind force of the air outlet is normal, whether the air outlet has abnormal noise, whether the compressor has abnormal noise, whether the belt has abnormal noise, and whether the fan has abnormal noise.
And S130, acquiring sensory data input by a user.
After the user acquires accurate sensory data according to the prompt given in step S120, the accurate sensory data needs to be input to the vehicle air conditioner diagnostic system, so that the vehicle air conditioner diagnostic system can perform fault diagnosis according to sufficiently comprehensive technical parameters, and specifically, the vehicle air conditioner diagnostic system can enable the user to input the acquired sensory data by setting a touch screen, a touch button, a voice recognition module, and the like.
And S140, determining the running state of the automobile air conditioner according to the sensory data input by the user and the air conditioner detection data.
After the automobile air conditioner diagnosis system obtains sensory data input by a user and air conditioner detection data detected by the detection module, the working conditions of all parts of the automobile air conditioner can be inferred through a diagnosis algorithm, namely the fault condition of the automobile air conditioner is diagnosed.
In the embodiment, the sensory data required to be input by the user is further determined based on the air conditioner detection data detected by the detection module and the user is prompted, the sensory data input by the user is acquired, and then the air conditioner detection data detected by the detection module is combined for comprehensive diagnosis to obtain the automobile air conditioner diagnosis result.
The embodiment provides a vehicle air conditioner diagnosis method, which can comprehensively diagnose the working conditions of all parts of a vehicle air conditioner based on air conditioner detection data and sensory data input by a user, the obtained technical parameters are more comprehensive, the obtained diagnosis result is more accurate, the influence of manual judgment on the accuracy of the diagnosis result is avoided without depending on manual judgment, the operation is simple, the diagnosis speed is higher, and the diagnosis result is more accurate.
Example two
In this embodiment, a part of a flow in the vehicle air conditioner diagnosis method is further explained and illustrated on the basis of the first embodiment, and specifically as shown in fig. 2, the vehicle air conditioner diagnosis method provided in this embodiment includes:
s210, air conditioner detection data are obtained, wherein the air conditioner detection data comprise refrigerant concentration, high and low pressure, ambient temperature and air outlet temperature.
And S220, judging the refrigerant concentration condition according to the refrigerant concentration and a preset concentration value.
Specifically, a refrigerant concentration threshold value is set according to the industrial standard requirements of the automobile air conditioner, when the refrigerant concentration of the automobile air conditioner is detected to be lower than the refrigerant concentration threshold value, the refrigerant concentration is judged to be abnormal, otherwise, the refrigerant concentration is normal, when the refrigerant concentration of the automobile air conditioner is detected to be abnormal, the detection result of other items is influenced by the abnormal refrigerant concentration, the refrigerant can be replaced firstly, the refrigerant concentration of the automobile air conditioner is ensured to be normal, then other tests are further carried out, the refrigerant can not be replaced firstly, and the comprehensive diagnosis result is obtained and then fault troubleshooting is carried out one by one.
And S230, judging the high-low pressure condition according to the high-low pressure and the ambient temperature.
The pressure value of each position in the air conditioning loop of the automobile air conditioner is different when the automobile air conditioner works normally, but the pressure value of the same position tends to be in a stable range, so that the pressure value of the corresponding node can be collected when the automobile air conditioner works as the basis for diagnosing the running condition of the automobile air conditioner.
At present, the pressure in the air conditioning loop of the vehicle is mainly detected as a high pressure and a low pressure, which are collectively called as a high pressure and a low pressure, and the judgment of the high pressure and the low pressure needs to be combined with an ambient temperature and a plurality of pressure preset values, which are specifically exemplified as follows:
assume that the detected ambient temperature is T1.
According to the ambient temperature T1, the first preset value lp _1 of low pressure can be calculated, and the calculation formula may be as follows: lp — 1 ═ 1.5+0.3 (T1-20)/30. When the detected low-pressure is lower than lp — 1, "low-pressure low" may be judged.
According to the ambient temperature T1, the low-voltage second preset value lp _2 can be calculated, and the calculation formula may be as follows: lp — 2 ═ 2.2+0.5 (T1-20)/30. When the detected low-pressure is greater than or equal to lp _1 and less than or equal to lp _2, it can be judged that the low pressure is normal.
According to the ambient temperature T1, the third preset value lp _3 of low pressure can be calculated, and the calculation formula may be as follows: lp — 3 ═ 2.4+0.5 (T1-20)/30. When the detected low-pressure is greater than lp _2 and less than or equal to lp _3, the low pressure is judged to be slightly higher; when the detected low pressure is greater than lp — 3, "low pressure high" may be judged.
According to the ambient temperature T1, the high-pressure first preset value hp _1 and the high-pressure second preset value hp _2 can be calculated. Illustratively, the high-pressure first preset value is calculated as hp _1 ═ 9.0+4 × (T1-20)/30, and the high-pressure second preset value is calculated as hp _2 ═ 12.0+6 × (T1-20)/30. When the detected high-pressure hp is less than hp _1, "high pressure low" can be judged; when the detected high-pressure is greater than hp _2, "high-pressure high" may be judged.
Besides the logic operation of the highest and lowest static values, the dynamic values of high-pressure and low-pressure are also "high-pressure rapid jitter" and "pressure difference slow variation". The judgment bases are respectively: when the frequency variation of the high pressure exceeds 0.5BAR by more than 1HZ within the time range of 180 seconds to 300 seconds after the test is started, the high pressure quick jitter can be judged, and the condition is caused by unstable output pressure of the compressor; when the difference (hp-lp) between the high pressure and the low pressure changes by more than 5BAR within the time range of 180 seconds to 300 seconds after the test is started, the pressure difference can be judged to change slowly, and the condition is caused by moisture in the system.
And S240, judging the temperature condition of the air outlet according to the air outlet temperature and the environment temperature.
In this embodiment, according to the ambient temperature T1, an air outlet preset value T _2 of the air conditioner can be calculated, where in the air conditioner, the air outlet preset value calculation formula is T _ 2-8 +8 (T1-20)/30. When the collected temperature value of the air outlet of the air conditioner is less than or equal to T _2, judging that the air outlet temperature is normal; otherwise, the air outlet temperature can be judged to be high.
And S250, determining and prompting sensory data required to be input by a user according to the refrigerant concentration condition, the high-low pressure condition and the air outlet temperature condition.
After the refrigerant concentration condition, the high-low pressure condition and the air outlet temperature condition are obtained, in some embodiments, a preliminary diagnosis may be performed to judge a fault condition of the vehicle air conditioner, and then technical parameters that need to be obtained by a user through a sense organ are determined according to a result of the preliminary diagnosis.
Illustratively, in the present embodiment, it is selected which technical parameters are specifically included in the sensory data that needs to be input by the user through the preliminary diagnosis, specifically as follows:
firstly, in this embodiment, it is determined that the technical parameters which are not affected by the detection data and need to be obtained by the user through the sense are one or more of whether the belt has cracks, whether the wind power at the air outlet is normal, whether the air outlet has abnormal noise, whether the compressor has abnormal noise, whether the belt has abnormal noise, and whether the fan has abnormal noise.
And then determining technical parameters which are influenced by the detected data and need to be acquired by the user through sense organ: if the refrigeration concentration condition is normal, and the low-pressure is lower than a first low-pressure preset value and the high-pressure is lower than a second high-pressure preset value in the high-low pressure condition, the sensory data of the user further comprise whether oil stains exist in oil stain points; if the refrigeration concentration condition is normal and the high pressure in the high-low pressure condition is higher than a second preset pressure, the sensory data of the user further include whether the external fan rotates normally.
And S260, determining the running condition of the automobile air conditioner according to the sensory data input by the user and the air conditioner detection data.
After all technical parameters required by diagnosis are acquired, the operating condition of the automobile air conditioner can be determined through a diagnosis algorithm to obtain a fault position and a fault reason, a specific diagnosis process can be automatically adjusted according to different designs of the automobile air conditioner, and is not limited herein, for convenience of understanding, the following is a detailed example of the diagnosis process, and it should be understood that the following is only an explanation and not a limitation herein:
the method comprises the steps of firstly setting sensing data which are not required to be determined through air conditioner detection data, selecting whether a belt has cracks or not, whether air at an air outlet is normal or not, whether an air outlet has abnormal sound or not, whether a compressor has abnormal sound or not, whether the belt has abnormal sound or not and whether a fan has abnormal sound or not as the sensing data which are not required to be determined through the air conditioner detection data, and for distinguishing, referring the technical parameters to be first technical parameters, wherein whether the belt has cracks or not, whether the belt has abnormal sound or not, whether the fan has abnormal sound or not and whether the compressor has abnormal sound or not indicate whether the compressor is in fault or not, whether the air at the air outlet has normal wind power or not indicates whether an air outlet air filter, an air blower and a wind control system are.
And if the preset concentration value is 98%, prompting a user to replace the refrigerant and then detecting when the refrigerant concentration is less than 98%.
When the concentration of the refrigerant is not less than 98%, whether the ambient temperature exceeds the working range of the automobile air conditioner (such as 20 ℃ to 50 ℃) is judged.
And if the ambient temperature does not exceed the working range of the automobile air conditioner, judging the condition of low pressure.
When the low-pressure is greater than or equal to lp _1 and less than or equal to lp _2, namely the low-pressure is normal, judging the condition of the high-pressure, and if the high-pressure is less than or equal to hp _2, judging the condition of the temperature of the air outlet; if the temperature of the air outlet is normal, judging whether a high-pressure rapid shaking condition exists; if no high-pressure quick shaking condition exists, judging whether a pressure difference slow speed change condition exists or not; and if the pressure difference does not exist and the speed is changed slowly, judging whether the high pressure is less than hp _1, and prompting the first technical parameter which needs to be acquired by the user through sensing, wherein if the temperature of the air outlet is too high or the high pressure is in a quick shaking state or the pressure difference is in a slow changing state, directly prompting the first technical parameter which needs to be acquired by the user through sensing without performing other subsequent judging processes. When the method is carried out according to the judgment process, the corresponding preliminary diagnosis result is as follows: if the high pressure is greater than hp _2, the condenser, fan and drying tank may fail; if the temperature of the air outlet is too high, the evaporation box, the wind power transmission system, the hot air and cold air distribution system and the compressor may have faults; if a high pressure rapid jitter condition exists, the compressor may have a fault; if the pressure difference slowly changes, the drying tank may have faults; if the high pressure is lower than hp _1, there may be a refrigerant deficiency, and if the high pressure is not lower than hp _1, the system is operating normally. Correspondingly, after a preliminary diagnosis result is obtained, whether the belt has cracks or not, whether the wind power of the air outlet is normal or not, whether the air outlet has abnormal sound or not, whether the compressor has abnormal sound or not, whether the belt has abnormal sound or not and whether the fan has abnormal sound or not are further checked through sensory data, and when the high-pressure is judged to be greater than hp _2 in the process, whether the rotation of the external fan is normal or not is further included in the sensory data.
When the low-pressure is greater than lp _2 and less than or equal to lp _3, namely the low pressure is slightly higher, judging the condition of the high-pressure, judging the condition of the air outlet temperature if the high-pressure is less than or equal to hp _2, and then prompting the first technical parameters which need to be acquired by the user through sense organs, otherwise, directly prompting the first technical parameters which need to be acquired by the user through sense organs. When the judgment process is carried out according to the above, the corresponding preliminary diagnosis result obtained according to the air conditioner detection data is as follows: judging that the high-pressure is higher than hp _2, the refrigerant is excessive, and the condenser, the fan and the drying tank are in failure; when the temperature of the air outlet is judged to be overhigh, the evaporation box, the wind power transmission system, the hot air and cold air distribution system and the compressor are in failure; and when the temperature of the air outlet is judged to be normal, the compressor, the refrigerant and the compressor oil are failed. And further checking whether the belt has cracks, whether the wind power of the air outlet is normal, whether the air outlet has abnormal sound, whether the compressor has abnormal sound, whether the belt has abnormal sound and whether the fan has abnormal sound through sensory data.
When the low-pressure is lower than lp _1, namely 'low pressure', whether the high-pressure is less than or equal to hp _2 or not needs to be judged, if yes, whether the high-pressure is less than hp _1 or not is judged, if the high-pressure is less than hp _1, technical parameters needing to be sensed and obtained by a user, namely whether oil stains exist in sensing data or not, wherein the oil stains are positions, where oil stains can appear due to faults, in an air-conditioning pipeline and are used for judging whether the pipeline leaks or not. And performing diagnosis according to the judgment process, if the high-pressure is not less than hp _2, primarily diagnosing that the communication parts among the expansion valve, the temperature sensing system, the drying tank, the condenser and the drying tank have faults, if the high-pressure is not less than hp _1, the refrigerant, the expansion valve, the temperature sensing system and the drying tank have faults, and if the high-pressure is less than hp _1, the refrigerant possibly leaks. And based on the preliminary diagnosis result, checking whether the oil stain points have oil stains, whether the belt has cracks, whether the wind power of the air outlet is normal, whether the air outlet has abnormal sound, whether the compressor has abnormal sound, whether the belt has abnormal sound and whether the fan has abnormal sound through sensory data to further check fault reasons.
If the low-pressure is greater than lp _3, further judging whether the high-pressure is less than or equal to hp _2, if so, preliminarily diagnosing that faults may exist in a control valve (variable frequency) of the compressor, a clutch (fixed frequency), a belt and an expansion valve, and if not, faults may exist in the refrigerant content, the condenser, the fan and the drying tank. And based on the preliminary diagnosis result, checking whether the belt has cracks or not, whether the wind power of the air outlet is normal or not, whether the air outlet has abnormal sound or not, whether the compressor has abnormal sound or not, whether the belt has abnormal sound or not and whether the fan has abnormal sound or not through sensory data.
S270, obtaining an automobile vehicle identification code, connecting an accessory database according to the running state of the automobile air conditioner and the automobile vehicle identification code, and searching automobile air conditioner accessories.
When the automobile air conditioner is diagnosed to have a fault, the fault needs to be repaired and removed, corresponding accessories need to be replaced under most conditions, and the fact that the accessories adopted by the automobile air conditioners of different manufacturers and different models are not necessarily the same is considered, so that the models of the automobile air conditioner accessories corresponding to the corresponding automobiles need to be searched by connecting the accessory database according to the automobile identification codes and the corresponding diagnosis results, and then the automobile air conditioner accessories to be replaced are selected.
The embodiment further provides a specific process of diagnosing by combining the air conditioner detection data and the sensory data on the basis of the first embodiment, and can further and accurately determine the required sensory data on the basis of the air conditioner detection data, so that the fault condition of the automobile air conditioner is accurately diagnosed, and the running condition of the automobile air conditioner is more accurately determined.
EXAMPLE III
Fig. 3 is a schematic structural diagram of a vehicle air conditioner diagnosis system according to a third embodiment of the present invention, and as shown in fig. 3, the system includes:
the first obtaining module 310 is configured to obtain air conditioner detection data.
Illustratively, the air conditioner detection data includes refrigerant concentration, high and low pressure, ambient temperature and outlet air temperature.
Generally, the air conditioner detection data is obtained through various electronic detection devices (e.g., sensors), which may be self-contained in the vehicle air conditioner diagnosis system or self-equipped by a user, and if the user is self-equipped, the air conditioner detection data needs to be input into the vehicle air conditioner diagnosis system, where the input manner is not limited.
And the prompting module 320 is used for prompting sensory data required to be input by a user according to the air conditioner diagnosis data.
Specifically, the sensory data input by the user includes one or more of whether the belt has cracks, whether the wind power of the air outlet is normal, whether the air outlet has abnormal sound, whether the compressor has abnormal sound, whether the belt has abnormal sound, and whether the fan has abnormal sound.
For example, the prompting module can be an electronic device with a display function or a voice function, such as a mobile phone and a tablet.
Specifically, the second obtaining module 330 includes:
and the refrigerant concentration judging unit is used for judging the refrigerant concentration condition according to the refrigerant concentration and a preset concentration value.
And the high-low pressure judging unit is used for judging the high-low pressure condition according to the high-low pressure and the ambient temperature.
And the air outlet temperature judging unit is used for judging the air outlet temperature condition according to the air outlet temperature and the environment temperature.
And the sensory data determining unit is used for determining and prompting sensory data required to be input by a user according to the refrigerant concentration condition, the high-low pressure condition and the air outlet temperature condition.
Specifically, if the refrigeration concentration condition is normal, and the low-pressure is lower than a low-pressure first preset value and the high-pressure is lower than a high-pressure second preset value in the high-low pressure condition, the sensory data of the user further include whether oil stains exist in the oil stain points; and if the refrigeration concentration condition is normal and the high pressure in the high-low pressure condition is higher than a second high-pressure preset value, the sensory data of the user further comprise whether the external fan rotates normally.
And a second obtaining module 330, configured to obtain sensory data input by the user.
For example, the second obtaining module may be an electronic device with input function, such as a mobile phone and a tablet.
And the diagnosis module 340 is used for determining the running condition of the automobile air conditioner according to the sensory data input by the user and the air conditioner detection data.
Further, the vehicle air conditioner diagnostic system provided by the embodiment further includes:
the network module is used for acquiring the automobile identification code, and searching automobile air conditioner accessories according to the automobile air conditioner running state and the automobile identification code connecting accessory database
The embodiment provides a vehicle air conditioner diagnosis system, which can comprehensively diagnose the working conditions of each component of a vehicle air conditioner based on air conditioner detection data and sensory data input by a user, the obtained technical parameters are more comprehensive, the obtained diagnosis result is more accurate, the influence of manual judgment on the accuracy of the diagnosis result is avoided without depending on manual judgment, the operation is simple, the diagnosis speed is higher, and the diagnosis result is more accurate.
Example four
Fig. 4 is a schematic structural diagram of an apparatus 400 according to a sixth embodiment of the present invention, as shown in fig. 4, the apparatus includes a memory 410 and a processor 420, where the number of the processors 420 in the apparatus may be one or more, and one processor 420 is taken as an example in fig. 4; the memory 410 and the processor 420 in the device may be connected by a bus or other means, and fig. 4 illustrates the connection by a bus as an example.
The memory 410 is a computer-readable storage medium, and can be used for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the vehicle air conditioner diagnosis method in the embodiment of the present invention (for example, the first obtaining module 310, the prompting module 320, the second obtaining module 330, and the diagnosis module 340 in the vehicle air conditioner diagnosis system). The processor 420 executes various functional applications of the device and data processing by executing software programs, instructions and modules stored in the memory 410, thereby implementing the above-described diagnosis method for the vehicle air conditioner.
Wherein the processor 420 is configured to run the computer executable program stored in the memory 410 to implement the following steps: step S110, acquiring air conditioner detection data; step S120, prompting sensory data required to be input by a user according to the air conditioner diagnosis data; step S130, sensory data input by a user are acquired; and step S140, determining the running state of the automobile air conditioner according to the sensory data input by the user and the air conditioner detection data.
Of course, the apparatus provided by the embodiment of the present invention is not limited to the method operations described above, and may also perform related operations in the vehicle air conditioner diagnosis method provided by any embodiment of the present invention.
The memory 410 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 410 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 examples, memory 410 may further include memory located remotely from processor 420, which may be connected to devices through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The embodiment provides a vehicle air conditioner diagnostic equipment, which can comprehensively diagnose the working conditions of each part of a vehicle air conditioner based on air conditioner detection data and sensory data input by a user, the obtained technical parameters are more comprehensive, the obtained diagnostic result is more accurate, the influence of manual judgment on the accuracy of the diagnostic result is avoided without depending on manual judgment, the operation is simple, the diagnostic speed is higher, and the diagnostic result is more accurate.
EXAMPLE five
An eighth embodiment of the present invention further provides a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform a vehicle air conditioner diagnosis method, including:
acquiring air conditioner detection data;
prompting sensory data required to be input by a user according to the air conditioner diagnosis data;
acquiring sensory data input by a user;
and determining the running condition of the automobile air conditioner according to the sensory data input by the user and the air conditioner detection data.
Of course, the storage medium containing the computer-executable instructions provided by the embodiments of the present invention is not limited to the method operations described above, and may also perform related operations in the vehicle air conditioner diagnosis method provided by any embodiments of the present invention.
From the above description of the embodiments, it is clear to those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly can be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a device, or a network device) to execute the methods according to the embodiments of the present invention.
It should be noted that, in the embodiment of the authorization system, the included units and modules are merely divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A vehicle air conditioner diagnosis method is characterized by comprising the following steps:
acquiring air conditioner detection data;
prompting sensory data required to be input by a user according to the air conditioner diagnosis data;
acquiring sensory data input by a user;
and determining the running condition of the automobile air conditioner by the sensory data input by the user and the air conditioner detection data.
2. The method of claim 1, wherein the air conditioning test data includes refrigerant concentration, high and low pressure, ambient temperature, and outlet air temperature.
3. The method of claim 2, wherein the sensory data input by the user comprises one or more of whether the belt has cracks, whether the wind force at the air outlet is normal, whether the air outlet has abnormal noise, whether the compressor has abnormal noise, whether the belt has abnormal noise, and whether the fan has abnormal noise.
4. The method of claim 2, wherein prompting a user for sensory data to be input based on the air conditioning diagnostic data comprises:
judging the concentration condition of the refrigerant according to the concentration of the refrigerant and a preset concentration value;
judging the high-low pressure condition according to the high-low pressure and the ambient temperature;
judging the temperature condition of the air outlet according to the air outlet temperature and the environment temperature;
and determining and prompting sensory data required to be input by a user according to the refrigerant concentration condition, the high-low pressure condition and the air outlet temperature condition.
5. The method of claim 4, wherein the sensory data of the user further comprises whether the oil stain spot is oil stained if the refrigerant concentration condition is normal and the low pressure is lower than the first preset low pressure value and the high pressure is lower than the second preset high pressure value in the high and low pressure condition.
6. The method of claim 4, wherein the sensory data of the user further comprises whether the external fan is rotating normally if the refrigerant concentration condition is normal and the high pressure in the high-low pressure condition is higher than the second predetermined high pressure value.
7. The method of claim 1, further comprising:
and acquiring an automobile identification code, and searching automobile air conditioner accessories according to the automobile air conditioner running state and the automobile identification code connecting accessory database.
8. An automotive air conditioning diagnostic system, comprising:
the first acquisition module is used for acquiring air conditioner detection data;
the prompting module is used for prompting sensory data required to be input by a user according to the air conditioner diagnosis data;
the second acquisition module is used for acquiring sensory data input by a user;
and the diagnosis module is used for determining the running state of the automobile air conditioner according to the sensory data input by the user and the air conditioner detection data.
9. A vehicle air conditioner diagnosis device, comprising a memory and a processor, wherein the memory stores a computer program operable on the processor, and the processor implements the vehicle air conditioner diagnosis method according to any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium characterized in that the storage medium stores a computer program comprising program instructions that, when executed, implement the vehicle air conditioner diagnosis method according to any one of claims 1 to 7.
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