Parking air conditioner high-temperature operation control method and system, parking air conditioner and vehicle

Abstract

The invention discloses a parking air conditioner high-temperature operation control method and system, a parking air conditioner and a vehicle. The parking air conditioner high-temperature operation control method comprises the steps that the current outer ring temperature of the parking air conditioner is obtained, whether the outer ring temperature is higher than the preset outer ring temperature or not is judged, and when the outer ring temperature is higher than the preset outer ring temperature, the parking air conditioner is started; if yes, outer ring temperature abnormity caused by heat radiation is preliminarily confirmed; after it is preliminarily confirmed that the outer ring temperature is abnormal due to heat radiation, the parking air conditioner is controlled to stop, and the current exhaust temperature of the parking air conditioner is obtained after the parking air conditioner stops for preset time; calculating a difference value obtained by subtracting the exhaust temperature from the outer ring temperature, and finally determining whether the outer ring temperature abnormity is caused by heat radiation or not according to the difference value; and if it is finally confirmed that the outer ring temperature is abnormal due to the heat radiation, the outer ring temperature is corrected according to the difference value, and high-temperature control logic is executed according to the corrected outer ring temperature. The parking air conditioner can be normally started under the condition that the outer ring temperature is abnormal due to heat radiation, and the user experience is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a parking air conditioner high temperature operation control method, system, parking air conditioner and vehicle. Background Art

[0002] With the widespread use of air conditioners, truck parking air conditioners have gradually entered the public eye and are loved by more and more truck drivers. Among the existing parking air conditioners, due to the limitation of installation position, they mainly include top-mounted type and backpack type.

[0003] Specifically, the installation process of the roof-mounted parking air conditioner is relatively complicated and requires the use of professional tools. In addition, since it is installed at a high position on the roof, daily maintenance and inspection become more difficult. In addition, the roof-mounted installation method may also have a negative impact on the aerodynamic performance of the vehicle, such as increasing wind resistance, and may cause the roof height to increase, making it difficult to pass safely in some places with height restrictions.

[0004] In contrast, backpack-type parking air conditioners are easier to operate when installed on the side of the vehicle, and the side position is lower, which is convenient for daily maintenance and repair. At the same time, backpack-type parking air conditioners can also be installed in a hidden location to reduce the impact on the appearance. Therefore, in the industry, backpack-type parking air conditioners are more popular with consumers and have the largest number of installations.

[0005] However, backpack parking air conditioners also have some problems. Since they can only be installed on the side of the car, that is, near the rear of the cab, when the cab is exposed to the high temperature in summer, it will radiate heat to the surrounding area, which will cause the temperature detected by the outer ring temperature sensor to be much higher than the actual outer ring temperature, causing the parking air conditioner to fail to start and operate normally, greatly affecting the user experience. Summary of the invention

[0006] The purpose of the present invention is to provide a parking air conditioner high temperature operation control method, system, parking air conditioner and vehicle, aiming to solve the problem in the prior art that the backpack type parking air conditioner cannot operate normally due to abnormal outer ring temperature caused by heat radiation.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0008] The present invention provides a parking air conditioner high temperature operation control method, comprising:

[0009] Acquire the current outer ring temperature of the parking air conditioner, and determine whether the outer ring temperature is higher than a preset outer ring temperature. When the outer ring temperature is higher than the preset outer ring temperature, it is preliminarily confirmed that the outer ring temperature is abnormal due to heat radiation.

[0010] After preliminarily confirming that the thermal radiation causes the outer ring temperature to be abnormal, controlling the parking air conditioner to shut down, and obtaining the current exhaust temperature of the parking air conditioner after a predetermined shutdown time;

[0011] Calculating the difference between the outer ring temperature and the exhaust temperature, and finally determining whether the outer ring temperature abnormality is caused by heat radiation according to the difference;

[0012] If it is finally confirmed that the thermal radiation causes the outer ring temperature to be abnormal, the outer ring temperature is corrected according to the difference, and the high temperature control logic is executed according to the corrected outer ring temperature.

[0013] Optionally, the finally confirming whether the outer ring temperature abnormality is caused by thermal radiation according to the difference includes:

[0014] If the difference is greater than 0, it is determined that the thermal radiation causes the outer ring temperature to be abnormal, and the outer ring temperature needs to be corrected;

[0015] If the difference is less than or equal to 0, it is determined that the outer ring temperature detection is accurate and there is no need to correct the outer ring temperature.

[0016] Optionally, the correcting the outer ring temperature according to the difference includes:

[0017] The outer ring temperature is corrected as follows:

[0018] T 外环修正 =T 外环 -ΔT;

[0019] ΔT=T 外环 -T 排气 ;

[0020] Among them, T 外环 is the outer ring temperature before correction, T 排气 is the exhaust temperature, T 外环修正 is the corrected outer ring temperature.

[0021] Optionally, executing the high temperature control logic according to the corrected outer loop temperature includes:

[0022] Determine whether the corrected outer ring temperature is higher than the preset outer ring temperature;

[0023] If the corrected outer ring temperature is higher than the preset outer ring temperature, the parking air conditioner is controlled to shut down;

[0024] If the corrected outer ring temperature is less than or equal to the preset outer ring temperature, the parking air conditioner is controlled to start up.

[0025] Optionally, obtaining the current outer ring temperature of the parking air conditioner, determining whether the outer ring temperature is higher than a preset outer ring temperature, and when the outer ring temperature is higher than the preset outer ring temperature, preliminarily confirming that thermal radiation causes the outer ring temperature to be abnormal, includes:

[0026] Obtaining a current outer ring temperature of the parking air conditioner and using it as a first outer ring temperature, and determining whether the first outer ring temperature is higher than a preset outer ring temperature;

[0027] If the first outer ring temperature is higher than the preset outer ring temperature, the counting variable is increased by 1, and the first outer ring temperature is obtained again, and the judgment is continued;

[0028] When the count variable is greater than a predetermined value, it is preliminarily confirmed that thermal radiation causes the outer ring temperature to be abnormal.

[0029] Optionally, after preliminarily confirming that the thermal radiation causes the outer ring temperature to be abnormal, controlling the parking air conditioner to shut down, and obtaining the current exhaust temperature of the parking air conditioner after a predetermined shutdown time, includes:

[0030] After preliminarily confirming that the thermal radiation causes the outer ring temperature to be abnormal, the current outer ring temperature of the parking air conditioner is obtained and used as the second outer ring temperature;

[0031] The parking air conditioner is controlled to stop, and the current exhaust temperature of the parking air conditioner is obtained after waiting for a predetermined time.

[0032] Optionally, calculating the difference between the outer ring temperature and the exhaust temperature includes:

[0033] The difference of the second outer ring temperature minus the exhaust gas temperature is calculated.

[0034] The present invention also provides a parking air conditioner high temperature operation control system, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the parking air conditioner high temperature operation control method as described in any one of the above items when executing the computer program.

[0035] The present invention also provides a parking air conditioner, comprising the parking air conditioner high temperature operation control system as described above.

[0036] The present invention also provides a vehicle, comprising the parking air conditioner as described above.

[0037] The embodiment of the present invention provides a parking air conditioner high temperature operation control method, system, parking air conditioner and vehicle. The embodiment of the present invention obtains the outer ring temperature and compares it with the preset outer ring temperature to preliminarily determine whether the outer ring temperature abnormality is caused by thermal radiation. After preliminarily confirming that thermal radiation causes the outer ring temperature abnormality, the exhaust temperature is obtained after a predetermined shutdown time, and the difference between the outer ring temperature and the exhaust temperature is calculated to further accurately determine whether the outer ring temperature abnormality is caused by thermal radiation. If it is finally confirmed that the outer ring temperature abnormality is caused by thermal radiation, the outer ring temperature is corrected according to the difference, so that the parking air conditioner can more accurately reflect the actual ambient temperature, thereby more reasonably executing the high temperature control logic, which helps to ensure the stable operation of the parking air conditioner in a high temperature environment, while enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0039] Figure 1 A schematic flow chart of a parking air conditioner high temperature operation control method provided by an embodiment of the present invention;

[0040] Figure 2 A schematic diagram of a sub-process of a parking air conditioner high temperature operation control method provided by an embodiment of the present invention;

[0041] Figure 3 A schematic diagram of another sub-process of the parking air conditioner high temperature operation control method provided by an embodiment of the present invention;

[0042] Figure 4 A schematic diagram of another sub-process of the parking air conditioner high temperature operation control method provided by an embodiment of the present invention;

[0043] Figure 5 A schematic diagram of another sub-process of the parking air conditioner high temperature operation control method provided by an embodiment of the present invention;

[0044] Figure 6 A flow chart of the outer ring temperature anomaly detection control logic provided by an embodiment of the present invention;

[0045] Figure 7 A schematic diagram of the device structure of a vehicle provided in an embodiment of the present invention.

[0046] Description of the symbols in the figure:

[0047] 100, parking air conditioner; 200, vehicle; 300, outer ring temperature sensor package. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0050] It should also be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0051] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0052] See also Figure 1 , Figure 1 A flow chart of a parking air conditioner high temperature operation control method provided by an embodiment of the present invention, the method comprises steps S101 to S104:

[0053] S101, obtaining a current outer ring temperature of the parking air conditioner, and determining whether the outer ring temperature is higher than a preset outer ring temperature. When the outer ring temperature is higher than the preset outer ring temperature, it is preliminarily determined that thermal radiation causes the outer ring temperature to be abnormal.

[0054] In this embodiment, it is first necessary to obtain the current external ambient temperature (outer ring temperature) of the parking air conditioner. After obtaining the outer ring temperature, it is necessary to compare it with a preset outer ring temperature threshold (preset outer ring temperature, which is the extremely high outer ring temperature threshold for refrigeration) to determine whether the current external ambient temperature of the parking air conditioner is in a normal state. If the outer ring temperature is higher than the preset outer ring temperature, it means that there is an abnormality in the external environment and the cause needs to be further analyzed. Specifically, when the outer ring temperature is greater than the preset outer ring temperature, it is preliminarily confirmed that the abnormal outer ring temperature is caused by thermal radiation. Thermal radiation refers to the process in which the internal heat of the cab is transmitted to the surrounding areas in the form of electromagnetic waves after being exposed to the high temperature environment in summer. Therefore, it is one of the reasons for the increase in the external ambient temperature of the parking air conditioner.

[0055] It should be noted that the "preliminary confirmation" here means a preliminary judgment based on the current information, without further analysis. In fact, the abnormal temperature of the outer ring may be caused by a variety of factors, such as the high temperature of the external environment itself, or the influence of direct sunlight, surrounding heat sources, surrounding buildings or objects, and changes in environmental factors.

[0056] In one embodiment, if Figure 2 As shown, the step S101 includes steps S201 to S203:

[0057] S201, obtaining a current outer ring temperature of the parking air conditioner and using it as a first outer ring temperature, and determining whether the first outer ring temperature is higher than a preset outer ring temperature;

[0058] S202: if the first outer ring temperature is higher than the preset outer ring temperature, the counting variable is increased by 1, the first outer ring temperature is acquired again, and the judgment is continued;

[0059] S203: When the counting variable is greater than a predetermined value, it is preliminarily confirmed that the thermal radiation causes the outer ring temperature to be abnormal.

[0060] In this embodiment, a method is provided to preliminarily confirm whether the abnormal outer ring temperature is caused by thermal radiation by acquiring the outer ring temperature multiple times and making a judgment. Specifically, the control system of the parking air conditioner first acquires the current outer ring temperature and marks it as "first outer ring temperature". Then, the first outer ring temperature is compared with the preset outer ring temperature. If the first outer ring temperature is higher than the preset outer ring temperature, the system will not immediately draw a conclusion, but will start a counting mechanism. The counting variable (integer, the initial value can be set to 0) increases by 1 each time it is detected that the first outer ring temperature is higher than the preset outer ring temperature. At the same time, the system will re-acquire the current outer ring temperature of the parking air conditioner (at this time, the newly acquired temperature is still called the "first outer ring temperature". Then, the system uses the newly acquired outer ring temperature to compare with the preset outer ring temperature again. After multiple (determined by a predetermined value) temperature detection and comparison, if the counting variable exceeds the predetermined value (the predetermined value can be 2), the system preliminarily confirms that the abnormal outer ring temperature is caused by thermal radiation. By acquiring and judging the outer ring temperature multiple times, the misjudgment problem caused by one-time detection errors can be effectively avoided, and the accuracy of the judgment of abnormal outer ring temperature can be improved, thereby improving the reliability of the parking air conditioner operating at high temperatures in actual applications and improving the user experience.

[0061] It should be noted that this process can be implemented through a software program, which can be run in the control system of the parking air conditioner, and the outer ring temperature sensing package is used to obtain the outer ring temperature of the parking air conditioner multiple times, and perform corresponding judgment and counting operations. In specific implementation, each time the first outer ring temperature is detected to be higher than the preset outer ring temperature, the parking air conditioner can be controlled to shut down immediately and report an abnormal outer ring temperature fault. After the abnormal outer ring temperature fault, it will wait for a specified time (such as 3 minutes) before restarting to ensure that the load of the air conditioner outdoor unit can slowly decrease, and then continue to detect the first outer ring temperature. If the first outer ring temperature is detected to be higher than the preset outer ring temperature for three consecutive times, it means that the temperature around the outer ring temperature sensing package is very high at this time, and the temperature detected by the outer ring temperature sensing package does exceed the preset outer ring temperature. At this time, it can be preliminarily confirmed that the abnormal outer ring temperature is caused by thermal radiation.

[0062] S102, after preliminarily confirming that the thermal radiation causes the abnormal temperature of the outer ring, controlling the parking air conditioner to shut down, and obtaining the current exhaust temperature of the parking air conditioner after a predetermined shutdown time;

[0063] In this embodiment, after initially confirming that the abnormal temperature of the outer ring is caused by thermal radiation, in order to protect the parking air conditioner from possible overheating damage, the system will control the parking air conditioner to stop running, so as to avoid damage to the parking air conditioner or performance degradation caused by continued operation under extreme conditions. The parking air conditioner shutdown mentioned in the various embodiments of the present invention can be the shutdown of the compressor of the parking air conditioner, and its functions such as temperature detection and control judgment can still operate. After shutdown, the system will not immediately proceed to the next step, but wait for a predetermined time interval. The purpose of waiting is to allow the temperature inside the parking air conditioner to have enough time to stabilize so that accurate temperature measurement can be performed.

[0064] After the predetermined time interval, the system will start the temperature measurement function again to obtain the current exhaust temperature of the parking air conditioner. Exhaust temperature is an important indicator of the operating status of the parking air conditioner, especially when judging the influence of thermal radiation. By measuring the exhaust temperature, the system can further analyze the specific influence of thermal radiation on the performance of the parking air conditioner.

[0065] In one embodiment, if Figure 3 As shown, the step S102 includes steps S301 to S302:

[0066] S301, after preliminarily confirming that the outer ring temperature is abnormal due to heat radiation, obtaining the current outer ring temperature of the parking air conditioner and using it as the second outer ring temperature;

[0067] S302: Control the parking air conditioner to stop, and obtain the current exhaust temperature of the parking air conditioner after waiting for a predetermined time.

[0068] In this embodiment, once it is preliminarily confirmed that the outer ring temperature is abnormal due to thermal radiation, the system should obtain the current outer ring temperature and record it as the "second outer ring temperature", or the first outer ring temperature detected last time can be used as the "second outer ring temperature", and the first outer ring temperature detected last time can be considered as the current outer ring temperature. The second outer ring temperature will be used for subsequent analysis and comparison to evaluate the impact of thermal radiation on the surrounding environment of the parking air conditioner. In order to prevent the parking air conditioner from continuing to operate in an overheated environment and being damaged, the system will control the parking air conditioner to shut down. After shutting down, the system needs to wait for a predetermined period of time to ensure that the temperature inside the parking air conditioner has enough time to stabilize. After the predetermined time is over, the exhaust temperature sensing package is used to detect the exhaust temperature of the parking air conditioner, and the difference between the second outer ring temperature and the exhaust temperature is compared to further confirm the abnormality of the outer ring temperature. This method effectively avoids the influence of thermal radiation on the detection of the outer ring temperature through the steps of shutting down and waiting for a predetermined time, so that the detection result is more accurate. Specifically, the setting of the predetermined time can be adjusted according to the actual application environment, for example, it can be set to a range of more than ten minutes to hundreds of minutes to ensure that the exhaust temperature can stabilize and reduce errors.

[0069] S103, calculating the difference between the outer ring temperature and the exhaust temperature, and finally determining whether the outer ring temperature abnormality is caused by heat radiation according to the difference;

[0070] In this embodiment, the difference between the outer ring temperature and the exhaust temperature is calculated. If the outer ring temperature is higher than the exhaust temperature, that is, the difference is greater than 0, this indicates that the outer ring temperature anomaly is indeed caused by thermal radiation. Because thermal radiation usually causes the external ambient temperature to rise, and the exhaust temperature inside the parking air conditioner usually does not rise to the same level as the external ambient temperature due to the cooling effect of the heat exchanger. Based on the analysis results of the difference between the outer ring temperature and the exhaust temperature, the system will finally confirm whether the outer ring temperature anomaly is indeed caused by thermal radiation.

[0071] In one embodiment, in step S103, calculating the difference between the outer ring temperature and the exhaust temperature includes step S401:

[0072] S401 : Calculate the difference between the second outer ring temperature and the exhaust temperature.

[0073] In this embodiment, as described in step S301 and step S302, after preliminarily confirming that the thermal radiation causes the outer ring temperature to be abnormal, the current outer ring temperature of the parking air conditioner is obtained and used as the second outer ring temperature.

[0074] S104: If it is finally confirmed that the thermal radiation causes the outer ring temperature to be abnormal, the outer ring temperature is corrected according to the difference, and the high temperature control logic is executed according to the corrected outer ring temperature.

[0075] In this embodiment, based on the conclusions drawn from the analysis results of the previous steps (such as S103 and S401), once it is confirmed that thermal radiation is the cause of the abnormal outer ring temperature, the system will correct the second outer ring temperature value according to the difference between the second outer ring temperature and the exhaust temperature. The corrected outer ring temperature will be used as the input of the high temperature control logic. The high temperature control logic includes a series of preset countermeasures, such as further shutting down and cooling the parking air conditioner, or turning on the parking air conditioner normally, or adjusting the operating mode of the parking air conditioner to reduce heat generation, or starting additional heat dissipation equipment. The purpose of these measures is to prevent the surrounding environment of the parking air conditioner from being damaged due to overheating.

[0076] In one embodiment, if Figure 4 As shown, in the step S104, the final confirmation of whether the outer ring temperature abnormality is caused by thermal radiation according to the difference includes steps S501 to S502:

[0077] S501, if the difference is greater than 0, it is determined that the thermal radiation causes the outer ring temperature to be abnormal, and the outer ring temperature needs to be corrected;

[0078] S502: If the difference is less than or equal to 0, it is determined that the outer ring temperature detection is accurate, and there is no need to correct the outer ring temperature.

[0079] In this embodiment, if the difference is greater than 0, it means that the second outer ring temperature is higher than the exhaust temperature. Under normal circumstances, the exhaust temperature sensing package is set in the compressor cavity, separated from the outside world by the condenser and the compressor sound insulation cotton. Under extremely high temperature conditions, it is almost unaffected by the heat radiation of the truck cab. When the air conditioning load is reduced by stopping and standing, the temperature detected by the exhaust temperature sensing package can be considered as the actual external ambient temperature. Therefore, a difference greater than 0 may be a sign that thermal radiation causes the outer ring temperature to rise, and it is determined that thermal radiation causes the outer ring temperature to be abnormal. Once the influence of thermal radiation is confirmed, the system needs to correct the second outer ring temperature value to obtain a temperature value that better reflects the actual situation.

[0080] Further, if the difference is less than or equal to 0, it means that the outer ring temperature is not higher than the exhaust temperature, or the two are equal. Under normal circumstances, this is unlikely to be caused by thermal radiation alone, because thermal radiation usually causes the external ambient temperature to rise. Therefore, a difference of less than or equal to 0 may indicate that the detection of the outer ring temperature is accurate, or that the effect of thermal radiation is small and not enough to cause temperature abnormalities. Since the difference indicates that the second outer ring temperature has not risen abnormally, or the effect of thermal radiation is small, the system does not need to correct the second outer ring temperature.

[0081] In one embodiment, in order to shorten the predetermined waiting time, the current exhaust temperature of the parking air conditioner can be obtained multiple times within the predetermined time and at a predetermined cycle. If the change amplitude of the exhaust temperature of the parking air conditioner obtained twice adjacently is less than the temperature threshold, the exhaust temperature obtained last time is directly used as the exhaust temperature for difference calculation. For example, the temperature threshold is 1°C, the predetermined time is 150 minutes, and the predetermined period is 10 minutes, that is, the current exhaust temperature of the parking air conditioner is detected every 10 minutes after the parking air conditioner is stopped. For example, the exhaust temperature detected for the first time is 68.1°C, the exhaust temperature detected for the second time is 62.5°C, the exhaust temperature detected for the third time is 58.3°C, the exhaust temperature detected for the fourth time is 56.1°C, the exhaust temperature detected for the fifth time is 54.3°C, and the exhaust temperature detected for the sixth time is 53.6°C. In the data of the first five detections, the change amplitude of the exhaust temperature detected for two consecutive times is greater than 1°C, while the change amplitude of the exhaust temperature detected for the sixth and fifth times is less than 1°C. In this way, the exhaust temperature detected for the fifth time can be directly used as the exhaust temperature for subsequent calculation of the difference, so that there is no need to wait for 150 minutes, but only 50 minutes to obtain a more accurate exhaust temperature. Of course, in order to make the detection result more accurate, when the exhaust temperature change amplitude is less than the temperature threshold for more than the predetermined number of consecutive times, the exhaust temperature obtained for the last time can be used as the exhaust temperature for the difference calculation. For example, if the predetermined number of times is 2, then if it is detected that the fourth and fifth exhaust temperature change amplitudes are less than the temperature threshold, the fifth and sixth exhaust temperature change amplitudes are less than the temperature threshold, and the sixth and seventh exhaust temperature change amplitudes are less than the temperature threshold, and the exhaust temperature change amplitudes for three consecutive times are all less than the temperature threshold, the exhaust temperature obtained for the seventh time can be used as the exhaust temperature for difference calculation.

[0082] In one embodiment, in step S104, the correcting the outer ring temperature according to the difference includes:

[0083] The outer ring temperature is corrected as follows:

[0084] T 外环修正 =T 外环 -ΔT;

[0085] ΔT=T 外环 -T 排气 ;

[0086] Among them, T 外环 is the outer ring temperature before correction, T 排气 is the exhaust temperature, T 外环修正 is the corrected outer ring temperature. 外环 It may be the second outer ring temperature.

[0087] In one embodiment, if Figure 5 As shown, in the step S104, the high temperature control logic is executed according to the corrected outer ring temperature, including steps S601 to S603:

[0088] S601, determining whether the corrected outer ring temperature is higher than a preset outer ring temperature;

[0089] S602: If the corrected outer ring temperature is higher than the preset outer ring temperature, the parking air conditioner is controlled to stop;

[0090] S603: If the corrected outer ring temperature is less than or equal to the preset outer ring temperature, control the parking air conditioner to start up.

[0091] In this embodiment, the high temperature control logic adopted is to determine whether the current outer ring temperature is too high, so that certain measures (such as shutdown) need to be taken to protect the parking air conditioner so that the parking air conditioner can operate normally in a high temperature environment. If the judgment result of step S601 shows that the corrected outer ring temperature is higher than the preset outer ring temperature, the system will consider that the current environmental conditions are not suitable for the parking air conditioner to continue to operate. In order to avoid overheating of the parking air conditioner, excessive energy consumption or adverse effects on the environment, the system will issue a shutdown command to stop the parking air conditioner. If the judgment result of step S601 shows that the corrected outer ring temperature is less than or equal to the preset outer ring temperature, the system will consider that the current environmental conditions are suitable for the operation of the parking air conditioner. In order to meet the user's demand for comfort, the system will issue a power-on command to start the parking air conditioner.

[0092] In a specific embodiment, T 预设外环 The value is generally set at 60℃. The purpose of setting this value is to limit the ambient temperature in which the parking air conditioner can operate to below 60℃ to ensure the reliability of the parking air conditioner. Figure 6 As shown, it is the outer loop temperature anomaly detection control logic diagram, and this control logic is described in detail below.

[0093] Control the parking air conditioner to start, and start the outer ring temperature abnormality detection step. If T 第一外环 >T 预设外环 , it means that the temperature of the first outer ring is abnormal at this time, the parking air conditioner will be shut down, and it will take 3 minutes to restart to ensure that the load of the parking air conditioner can be slowly reduced. At this time, the system will not immediately draw a conclusion, but start a counting mechanism. The counting variable N is an integer (initial value is 0), and N increases by 1 each time the outer ring temperature is detected abnormally. If the outer ring temperature is detected abnormally 3 times or more in a row, that is, the counting variable N ≥ 3, it means that the first outer ring temperature around the parking air conditioner detected by the outer ring temperature sensing package is very high, and the first outer ring temperature exceeds the preset outer ring temperature. The system first preliminarily determines that the abnormal outer ring temperature detection is caused by the heat radiation of the vehicle cab.

[0094] When the outer ring temperature is initially detected to be abnormal due to heat radiation, the second outer ring temperature is recorded for comparison with the exhaust temperature detected by the exhaust temperature sensor. The compressor is not allowed to start at this time, and the parking air conditioner is shut down for a preset time, which is 150 minutes. After 150 minutes of shutdown, the T detected by the exhaust temperature sensor is recorded. 排气 , and calculate the difference ΔT between the second outer ring temperature and the exhaust temperature (ΔT = T 第二外环 -T 排气 ). If ΔT≤0, it is determined that the second outer ring temperature detection is accurate and there is no need to correct the second outer ring temperature. If ΔT>0, it can be determined that the abnormal outer ring temperature is caused by the heat radiation from the vehicle cab, and the second outer ring temperature needs to be corrected, T 外环修正 =T 第二外环 -ΔT, T 外环修正 It can be used as the judgment condition of high temperature control logic. The judgment condition is T 外环修正 Is it higher than T 预设外环 If T 外环修正 ≤T 预设外环 , then the parking air conditioner is turned on.

[0095] In a more specific embodiment, T 预设外环 The value is 60℃, and the T 第二外环 =60℃, T after the compressor is left standing for 150 minutes 排气 =53°C, then ΔT = T 第二外环 -T 排气 =60℃-53℃=7℃, T 外环修正 =T 第二外环 -ΔT, T 外环修正 =53℃, at this time T 外环修正 <T 预设外环 Because T 外环修正 It is the corrected outer ring temperature, which is lower than the temperature detected by the outer ring temperature sensing package. If the machine was shut down or could not be started normally due to abnormal outer ring temperature before, it can be started and operated normally after this control logic correction processing. If the outer ring temperature is still detected to be abnormal after this control logic correction processing, the parking air conditioner needs to be shut down until the detected temperature meets the startup conditions.

[0096] It should be noted that the purpose of shutting down the parking air conditioner for 150 minutes is to gradually reduce the parking air conditioner load and reduce the exhaust temperature to the ambient temperature. Therefore, the exhaust temperature after the parking air conditioner is shut down for a predetermined time can be used to replace the outer ring temperature.

[0097] To sum up, in this way, the deviation between the outer ring temperature and the actual outer ring temperature (preset outer ring temperature) can be calculated, and then the real outer ring temperature can be obtained after correction through the correction formula, which can more accurately reflect the working status of the parking air conditioner and provide guarantee for the reliable operation of the parking air conditioner. When the parking air conditioner can be turned on normally, it will not fail to start up because the outer ring temperature is abnormally high due to heat radiation, thereby ensuring comfort and improving user experience.

[0098] The present invention also provides a parking air conditioner high temperature operation control system, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the parking air conditioner high temperature operation control method as described in any one of the above items when executing the computer program.

[0099] like Figure 7 As shown, an embodiment of the present invention further provides a parking air conditioner 100, comprising the parking air conditioner high temperature operation control system as described above.

[0100] The embodiment of the present invention further provides a vehicle 200, comprising the parking air conditioner 100 as described above and an outer ring temperature sensing package 300 connected around the parking air conditioner.

[0101] It should be noted that those skilled in the art can clearly understand that the specific implementation process of the above-mentioned system and each unit can refer to the corresponding description in the aforementioned method embodiment, and for the convenience and brevity of description, it will not be repeated here.

[0102] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A parking air conditioner high temperature operation control method, characterized in that: include: Obtain the current outer ring temperature of the parking air conditioner, and determine whether the outer ring temperature is higher than the preset outer ring temperature. When the outer ring temperature is greater than the preset outer ring temperature, it is preliminarily confirmed that the outer ring temperature is abnormal due to thermal radiation; After preliminarily confirming that the thermal radiation causes the outer ring temperature to be abnormal, controlling the parking air conditioner to shut down, and obtaining the current exhaust temperature of the parking air conditioner after a predetermined shutdown time; Calculating the difference between the outer ring temperature and the exhaust temperature, and finally determining whether the outer ring temperature abnormality is caused by heat radiation according to the difference; If it is finally confirmed that the thermal radiation causes the outer ring temperature to be abnormal, the outer ring temperature is corrected according to the difference, and the high temperature control logic is executed according to the corrected outer ring temperature.

2. The parking air conditioner high temperature operation control method according to claim 1, characterized in that: The finally determining whether the outer ring temperature abnormality is caused by thermal radiation according to the difference includes: If the difference is greater than 0, it is determined that the thermal radiation causes the outer ring temperature to be abnormal, and the outer ring temperature needs to be corrected; If the difference is less than or equal to 0, it is determined that the outer ring temperature detection is accurate and there is no need to correct the outer ring temperature.

3. The parking air conditioner high temperature operation control method according to claim 1, characterized in that: The correcting the outer ring temperature according to the difference includes: The outer ring temperature is corrected as follows: T 外环修正 =T 外环 -ΔT; ΔT=T 外环 -T 排气 ; Among them, T 外环 is the outer ring temperature before correction, T 排气 is the exhaust temperature, T 外环修正 is the corrected outer ring temperature.

4. The parking air conditioner high temperature operation control method according to claim 1, characterized in that: The step of executing the high temperature control logic according to the corrected outer loop temperature includes: Determine whether the corrected outer ring temperature is higher than the preset outer ring temperature; If the corrected outer ring temperature is higher than the preset outer ring temperature, the parking air conditioner is controlled to shut down; If the corrected outer ring temperature is less than or equal to the preset outer ring temperature, the parking air conditioner is controlled to start up.

5. The parking air conditioner high temperature operation control method according to claim 1, characterized in that: The obtaining of the current outer ring temperature of the parking air conditioner, and determining whether the outer ring temperature is higher than a preset outer ring temperature, and when the outer ring temperature is higher than the preset outer ring temperature, preliminarily confirming that thermal radiation causes the outer ring temperature to be abnormal, includes: Obtaining a current outer ring temperature of the parking air conditioner and using it as a first outer ring temperature, and determining whether the first outer ring temperature is higher than a preset outer ring temperature; If the first outer ring temperature is higher than the preset outer ring temperature, the counting variable is increased by 1, and the first outer ring temperature is obtained again, and the judgment is continued; When the count variable is greater than a predetermined value, it is preliminarily confirmed that thermal radiation causes the outer ring temperature to be abnormal.

6. The parking air conditioner high temperature operation control method according to claim 1, characterized in that: After preliminarily confirming that the heat radiation causes the outer ring temperature to be abnormal, controlling the parking air conditioner to shut down, and obtaining the current exhaust temperature of the parking air conditioner after a predetermined shutdown time, includes: After preliminarily confirming that the thermal radiation causes the outer ring temperature to be abnormal, the current outer ring temperature of the parking air conditioner is obtained and used as the second outer ring temperature; The parking air conditioner is controlled to stop, and the current exhaust temperature of the parking air conditioner is obtained after waiting for a predetermined time.

7. The parking air conditioner high temperature operation control method according to claim 6, characterized in that: The calculating the difference between the outer ring temperature and the exhaust temperature includes: The difference of the second outer ring temperature minus the exhaust gas temperature is calculated.

8. A parking air conditioner high temperature operation control system, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the parking air conditioner high temperature operation control method according to any one of claims 1 to 7 is implemented.

9. A parking air conditioner, characterized in that: It includes the parking air conditioner high temperature operation control system as described in claim 8.

10. A vehicle, characterized in that: It includes the parking air conditioner as claimed in claim 9.

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