Parking air conditioner frequency control method, parking air conditioner, storage medium and device

Abstract

The application discloses a parking air conditioner frequency control method, a parking air conditioner, a storage medium and an apparatus, and is characterized in that the method comprises the following steps: acquiring a real-time voltage and a protection voltage of a vehicle-mounted battery, the vehicle-mounted battery is used for supplying power for the parking air conditioner, and the protection voltage is a voltage value for protecting the vehicle-mounted battery from being too low in power; calculating a voltage difference value according to the real-time voltage and the protection voltage; obtaining a first coefficient according to the voltage difference value; acquiring an indoor temperature and a set temperature; calculating a temperature difference value according to the indoor temperature and the set temperature; obtaining a second coefficient according to the temperature difference value; calculating a target frequency according to the first coefficient and the second coefficient, and adjusting a compressor frequency of the parking air conditioner to the target frequency; and the application can achieve the effects of fast refrigeration and heating by acquiring the real-time voltage of the vehicle-mounted battery, calculating the temperature difference value between the indoor temperature and the set temperature, and calculating the reasonable target frequency of the compressor.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to a parking air conditioning frequency control method, a parking air conditioner, a storage medium, and a device. Background Technology

[0002] A parking air conditioner is an air conditioner installed in a car, typically powered by the vehicle's battery. The battery voltage decreases as its charge level drops. Traditional parking air conditioners are manually operated to set the compressor to cool or heat, but sometimes the battery voltage is insufficient to power the compressor to the set frequency.

[0003] It can be seen that current parking air conditioners have technical problems in making reasonable use of batteries. Summary of the Invention

[0004] The main technical problem this application addresses is that parking air conditioners cannot make reasonable use of the battery.

[0005] To address the aforementioned issues, the first technical solution adopted in this application is to provide a parking air conditioner frequency control method. This method includes: acquiring the real-time voltage and protection voltage of a vehicle battery, wherein the vehicle battery powers the parking air conditioner, and the protection voltage is a voltage value used to protect the vehicle battery from low charge; calculating a voltage difference based on the real-time voltage and the protection voltage; obtaining a first coefficient based on the voltage difference; acquiring the vehicle interior temperature and a set temperature; calculating a temperature difference based on the vehicle interior temperature and the set temperature; obtaining a second coefficient based on the temperature difference; calculating a target frequency based on the first coefficient and the second coefficient; and adjusting the compressor frequency of the parking air conditioner to the target frequency.

[0006] The step of calculating the target frequency based on the first coefficient and the second coefficient includes: calculating the target frequency according to a preset frequency formula; the preset frequency formula is F=FL+(FH-FL)*A*B; where F is the target frequency, FL is the lowest frequency of the compressor, FH is the highest frequency of the compressor, A is the first coefficient, and B is the second coefficient.

[0007] The first coefficient has a value range of 0-1, and the value of the first coefficient is proportional to the voltage difference.

[0008] The steps of obtaining the vehicle interior temperature and the set temperature further include: obtaining the air outlet temperature and the air return temperature of the parking air conditioner; and calculating the vehicle interior temperature based on the air outlet temperature and the air return temperature.

[0009] The step of calculating the vehicle interior temperature based on the outlet air temperature and the return air temperature includes: calculating the vehicle interior temperature according to a preset temperature formula; the preset temperature formula is Ta=[Tc*C+Th*(2-C)] / 2; where Ta is the vehicle interior temperature, Tc is the outlet air temperature, Th is the return air temperature, and C is the temperature correction coefficient.

[0010] Wherein, the temperature difference is the absolute value of the vehicle interior temperature minus the preset temperature; the value of the second coefficient ranges from 0 to 1, and the value of the second coefficient is proportional to the temperature difference.

[0011] The step of obtaining the real-time voltage and protection voltage of the vehicle battery further includes: determining the magnitude of the real-time voltage and the protection voltage; and shutting down the compressor when the real-time voltage is less than the protection voltage.

[0012] To solve the above problems, the second technical solution adopted in this application is to provide a parking air conditioner, which includes: a compressor, a memory, a processor, and a frequency control program for the parking air conditioner stored in the memory and capable of running on the processor. When the frequency control program for the parking air conditioner is executed by the processor, it implements the frequency control method for the parking air conditioner as described in any one of the first technical solutions of this application.

[0013] To solve the above problems, the third technical solution adopted in this application is to provide a storage medium storing a frequency control program for a parking air conditioner. When the frequency control program for the parking air conditioner is executed by a processor, it implements the frequency control method for the parking air conditioner described in any of the first technical solutions of this application.

[0014] To address the aforementioned issues, the fourth technical solution adopted in this application is to provide a frequency control device for a parking air conditioner. This device includes: a voltage detection module for detecting the real-time voltage of the vehicle battery, which powers the parking air conditioner; a temperature detection module for detecting the interior temperature; a frequency calculation module for calculating the target frequency of the parking air conditioner's compressor based on the real-time voltage and the interior temperature using a preset method; and a frequency control module for adjusting the compressor's frequency to the target frequency.

[0015] The beneficial effects of this application are as follows: Unlike the prior art, by detecting and calculating the voltage difference between the real-time voltage and the protection voltage of the vehicle battery, as well as the temperature difference between the set temperature and the interior temperature, two corresponding coefficients are obtained, and these coefficients are calculated according to a preset formula, so that the compressor of the parking air conditioner works at a reasonable target frequency to achieve the effect of rapid cooling or heating. Attached Figure Description

[0016] Figure 1 This is a flowchart illustrating the first embodiment of the parking air conditioning frequency control method of this application;

[0017] Figure 2 This is a flowchart illustrating the second embodiment of the parking air conditioning frequency control method of this application;

[0018] Figure 3 This is a schematic diagram of the structure of the first embodiment of the parking air conditioner of this application;

[0019] Figure 4 This is a schematic diagram of the structure of the first embodiment of the parking air conditioning frequency control device of this application. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0021] If the technical solution of this application involves personal information, the product using this technical solution has clearly informed the user of the personal information processing rules and obtained the user's voluntary consent before processing the personal information. If the technical solution of this application involves sensitive personal information, the product using this technical solution has obtained the user's separate consent before processing the sensitive personal information, and also meets the requirement of "express consent". For example, at personal information collection devices such as cameras, clear and prominent signs are set up to inform users that they have entered the scope of personal information collection and that personal information will be collected. If an individual voluntarily enters the collection scope, it is deemed that they have agreed to the collection of their personal information; or on the personal information processing device, with clear signs / information informing users of the personal information processing rules, authorization is obtained from the individual through pop-up information or by asking the individual to upload their personal information; wherein, the personal information processing rules may include information such as the personal information processor, the purpose of personal information processing, the processing method, and the types of personal information processed.

[0022] The design concept of this application is to detect the real-time voltage of the battery, the interior temperature and the set temperature, and calculate two coefficients that affect the compressor frequency based on the real-time voltage and the temperature difference between the interior temperature and the set temperature. Substituting the two coefficients into the preset formula, the target frequency of the parking air conditioning compressor is calculated. That is, the setting of the target frequency will take into account the influence of the real-time voltage and the temperature difference, so as to reasonably calculate the most suitable target frequency of the compressor.

[0023] Please see Figure 1 , Figure 1This is a schematic diagram of the flow of the first embodiment of the parking air conditioning frequency control method of this application.

[0024] S110: Obtain the real-time voltage and protection voltage of the vehicle battery;

[0025] In this embodiment, the real-time voltage and protection voltage of the vehicle battery are first obtained. The real-time voltage is the current voltage of the vehicle battery; the protection voltage is the voltage at which the vehicle battery will automatically cut off power if it is lower than the protection voltage, so as to prevent the vehicle battery from being unable to start the car due to low power.

[0026] 0S111: Obtain the interior temperature and set temperature;

[0027] In this embodiment, steps S111 and S110 can be executed simultaneously or after step S110; the vehicle interior temperature and the set temperature are obtained. The vehicle interior temperature refers to the current real-time temperature inside the vehicle, and the set temperature is the temperature that the user wants the air conditioning to reach.

[0028] S120: Calculate the voltage difference based on the real-time voltage and the protection voltage;

[0029] 5. In this embodiment, step S120 is executed after step S110, rather than in step S111.

[0030] The process is executed after the step; by calculating the difference between the real-time voltage and the protection voltage, it can be understood that when the real-time voltage is greater than the protection voltage, the larger the difference, the more charge the vehicle battery has.

[0031] S121: Calculate the temperature difference based on the interior temperature and the set temperature;

[0032] In this embodiment, step S121 is executed after step S111; through the acquired in-vehicle data...

[0033] The temperature difference between the set temperature and the interior temperature is calculated. It can be understood that the greater the temperature difference between the set temperature and the interior temperature, the higher the operating frequency of the compressor is required to bring the interior temperature to the set temperature more quickly.

[0034] S130: Obtain the first coefficient based on the voltage difference;

[0035] 5. In this embodiment, when the real-time voltage is greater than the protection voltage, the larger the voltage difference, the more likely it is to cause damage.

[0036] This means that the more charge the battery has, the greater the voltage difference, and therefore the larger the corresponding first coefficient. The value of the first coefficient ranges from 0 to 1, and its value is directly proportional to the voltage difference.

[0037] In some other embodiments, for ease of calculation, a corresponding first coefficient value is set for each range of voltage difference, for example:

[0038] When the voltage difference is greater than or equal to 5, the first coefficient is set to 1.

[0039] When the voltage difference is greater than 4 and less than 5, the first coefficient is taken as 0.8;

[0040] When the voltage difference is greater than 3 and less than or equal to 4, the first coefficient is taken as 0.6;

[0041] When the voltage difference is greater than 2 and less than or equal to 3, the first coefficient is taken as 0.4;

[0042] When the voltage difference is greater than 1 and less than or equal to 2, the first coefficient is set to 0.2.

[0043] When the voltage difference is greater than 0 and less than or equal to 1, the first coefficient is 0.

[0044] Optionally, when the voltage difference is greater than 0 and less than or equal to 1, the first coefficient is set to 0;

[0045] When the voltage difference is greater than 1 and less than or equal to 1.5, the first coefficient is set to 0.1;

[0046] When the voltage difference is greater than 1.5 and less than or equal to 2, the first coefficient is set to 0.2.

[0047] And so on, the first coefficient changes by a margin of 0.1.

[0048] Alternatively, the first coefficient can also vary by a larger margin, such as 0.3 or 0.4, with the voltage difference range corresponding one-to-one with the values ​​and the first coefficient as described above.

[0049] S131: The second coefficient is obtained based on the temperature difference;

[0050] In this embodiment, the temperature difference is the absolute value of the difference between the vehicle interior temperature and the preset temperature. Since a larger absolute value of the temperature difference means a higher required operating frequency for the compressor, the second coefficient corresponding to the temperature difference is also larger. The second coefficient ranges from 0 to 1, and its value is directly proportional to the temperature difference.

[0051] In some other embodiments, for ease of calculation, a corresponding second coefficient value is set for each temperature difference within a certain range, for example:

[0052] When the temperature difference is greater than or equal to 5, the second coefficient takes the value of 1;

[0053] When the temperature difference is greater than 4 but less than 5, the second coefficient is 0.8.

[0054] When the temperature difference is greater than 3 and less than or equal to 4, the second coefficient is 0.6.

[0055] When the temperature difference is greater than 2 and less than or equal to 3, the second coefficient is 0.4.

[0056] When the temperature difference is greater than 1 and less than or equal to 2, the second coefficient is 0.2.

[0057] When the temperature difference is greater than 0 and less than or equal to 1, the second coefficient is 0.

[0058] Optionally, when the temperature difference is greater than 0 and less than or equal to 1, the second coefficient is 0.

[0059] When the temperature difference is greater than 1 and less than or equal to 1.5, the second coefficient is set to 0.1.

[0060] When the temperature difference is greater than 1.5 and less than or equal to 2, the second coefficient is 0.2.

[0061] And so on, the second coefficient changes by a margin of 0.1.

[0062] Optionally, the second coefficient can also vary by a larger margin, such as 0.3 or 0.4, with the temperature difference range corresponding one-to-one with the values ​​and the second coefficient mentioned above.

[0063] Preferably, when the parking air conditioner heats up, the second coefficient changes according to the aforementioned temperature difference range; when the parking air conditioner cools down, the second coefficient changes as follows:

[0064] When the temperature difference is greater than or equal to 4.5, the second coefficient takes the value of 1;

[0065] When the temperature difference is greater than 3.5 and less than 4.5, the second coefficient is 0.8.

[0066] When the temperature difference is greater than 2.5 and less than or equal to 3.5, the second coefficient is 0.6.

[0067] When the temperature difference is greater than 1.5 and less than or equal to 2.5, the second coefficient is 0.4.

[0068] When the temperature difference is greater than 0.5 and less than or equal to 1.5, the second coefficient is set to 0.2.

[0069] When the temperature difference is greater than 0 and less than or equal to 0.5, the second coefficient takes the value of 0;

[0070] Preferably, the temperature difference value is collected only once before the compressor of the parking air conditioner is started, which can effectively prevent temperature fluctuations before the compressor is turned on.

[0071] S140: Calculate the target frequency based on the first and second coefficients, and adjust the compressor frequency of the parking air conditioner to the target frequency;

[0072] In this embodiment, step S140 is executed after steps S130 and S131 have been completed. The final target frequency is calculated using the formula F = FL + (FH - FL) * A * B; where F is the target frequency, FL is the compressor's minimum frequency, FH is the compressor's maximum frequency, A is the first coefficient, and B is the second coefficient. It can be understood that, according to this formula, the target compressor frequency is related to the magnitudes of the first and second coefficients, and it makes reasonable use of the vehicle battery to enable the compressor to cool or heat quickly. After calculating the target frequency, the compressor frequency is set to this target frequency.

[0073] This embodiment detects real-time voltage and vehicle interior temperature to calculate the temperature difference between real-time voltage and protection voltage, and the temperature difference between vehicle interior temperature and set temperature. It then calculates the corresponding coefficients and substitutes them into a preset formula to obtain the corresponding target frequency. It is easy to understand, based on the formula in this embodiment, that the target frequency F of the compressor will be between the lowest frequency FL and the highest frequency FH, so that the target frequency F is within a reasonable range. This allows the vehicle battery to be used reasonably to enable the compressor to reach the target frequency and quickly cool down or heat up.

[0074] Please see Figure 2 , Figure 2 This is a flowchart illustrating the second embodiment of the parking air conditioning frequency control method of this application.

[0075] S210: Obtain the real-time voltage and protection voltage of the vehicle battery;

[0076] In this embodiment, step S210 is the same as step S110 in the previous embodiment, and will not be described again here.

[0077] S211: Obtain the outlet air temperature, return air temperature and set temperature of the parking air conditioner;

[0078] In this embodiment, steps S211 and S210 are executed simultaneously or after step S210. The outlet air temperature and return air temperature are the temperatures detected by sensors at the parking air conditioning outlet and return air inlet.

[0079] S220: Determines the magnitude of real-time voltage and protection voltage;

[0080] In this embodiment, if the real-time voltage is less than the protection voltage, the power supply to the parking air conditioner needs to be disconnected to prevent the car from failing to start, and step S251 is executed; if the real-time voltage is greater than the protection voltage, the subsequent steps are executed.

[0081] S221: The interior temperature is calculated based on the outlet air temperature and return air temperature using a preset temperature formula;

[0082] In this embodiment, the vehicle interior temperature is calculated using the outlet air temperature and the return air temperature. The preset temperature formula is Ta = [Tc*C + Th*(2-C)] / 2, where Ta is the vehicle interior temperature, Tc is the outlet air temperature, Th is the return air temperature, and C is a temperature correction coefficient. The temperature correction coefficient is positively correlated with the engine's off-time and ranges from 0 to 1. It can be understood that when the parking air conditioner compressor is off for a longer period, the return air temperature is comparable to the outlet air temperature, so the vehicle interior temperature is its average value, and therefore C is set to 1. When the parking air conditioner compressor is off for a shorter period, the outlet air temperature is lower, and its weight naturally decreases, thus the temperature correction coefficient C decreases accordingly.

[0083] S230: In response to a real-time voltage exceeding the protection voltage, calculate the voltage difference based on the real-time voltage and the protection voltage;

[0084] In this embodiment, when it is determined in step S220 that the real-time voltage is greater than the protection voltage, step S230 is executed. Step S230 is similar to step S120 in the previous embodiment, and will not be described again here.

[0085] S231: Calculate the temperature difference based on the interior temperature and the set temperature;

[0086] In this embodiment, step S231 is the same as step S121 in the previous embodiment, and will not be described again here.

[0087] S240: The first coefficient is obtained based on the voltage difference;

[0088] In this embodiment, step S240 is the same as step S130 in the previous embodiment, and will not be described again here.

[0089] S241: The second coefficient is obtained based on the temperature difference;

[0090] In this embodiment, step S241 is the same as step S131 in the previous embodiment, and will not be described again here.

[0091] S250: Calculate the target frequency according to the preset frequency formula based on the first and second coefficients, and adjust the compressor frequency of the parking air conditioner to the target frequency;

[0092] In this embodiment, step S250 is the same as step S140 in the previous embodiment, and will not be described again here.

[0093] S251: In response to the real-time voltage being lower than the protection voltage, the compressor is shut down;

[0094] In this embodiment, when it is determined in step S220 that the real-time voltage is less than the protection voltage, step S251 is executed. In order to prevent the vehicle battery from being unable to start due to low power, the parking air conditioner disconnects the power supply when the real-time voltage is lower than the protection voltage, so as to ensure that the vehicle battery has remaining power.

[0095] In a specific application scenario, when a parking air conditioner with a rated voltage of 24V has an air outlet temperature of 30°C, an air return temperature of 31°C, a vehicle voltage of 25V, and the driver sets the air conditioner to 24°C (cooling), the battery software sets the protection voltage to 21.5V, the compressor's maximum frequency FH ​​is set to 70Hz, the minimum frequency FL is set to 20Hz, and the correction factor C is set to 1:

[0096] voltage difference Δ U = 25 - 21.5 = 3.5V, which falls between 3 and 4. Therefore, the first coefficient A is taken as 0.8.

[0097] The interior temperature Ta = [Tc*C + Th*(2-C)] / 2 = [30*1 + 31*(2-1)] / 2 = 30.5;

[0098] Temperature difference Δ T = 30.5 - 24 = 6.5, which is greater than 5, so the second coefficient B is set to 1;

[0099] According to F = FL + (FH - FL) * A * B;

[0100] The target frequency of the compressor is calculated to be F = 20 + (70 - 20) * 0.8 * 1 = 60.

[0101] Therefore, under this voltage condition, the compressor will operate at the target frequency of 60Hz after startup without any other protection restrictions.

[0102] This embodiment determines the magnitude of the real-time voltage and the protection voltage to ensure that the vehicle battery has remaining power to start the vehicle. It also calculates the interior temperature in a more reasonable and accurate manner by using a temperature correction coefficient based on the outlet and return air temperatures. This allows for the calculation of a reasonable target frequency for the compressor, enabling the vehicle battery to be used efficiently to reach the target frequency and quickly cool or heat up the compressor.

[0103] Please see Figure 3 , Figure 3 This is a structural schematic diagram of the first embodiment of the parking air conditioner of this application.

[0104] In this embodiment, the parking air conditioner includes: a communication bus 30, a processor 31, a user interface 32, a network interface 33, and a memory 34.

[0105] In this embodiment, the communication bus 30 is used to enable communication between the aforementioned components. The processor 31 can be a central processing unit (CPU). The user interface 32 can be a display screen, or it can include standard wired and wireless interfaces. The network interface 33 includes standard wired and wireless interfaces (e.g., a WiFi interface). The memory 34 can be random access memory (RAM); it can also be stable memory, such as non-volatile memory.

[0106] In this embodiment, a parking air conditioner is installed on a vehicle, and an on-board battery is also installed on the vehicle and connected to the parking air conditioner to supply power to it.

[0107] In this embodiment, the memory 34 is a computer-readable storage device, which internally houses an operating system, a user interface module, a network communication module, and a parking air conditioner frequency control program. The parking air conditioner calls the parking air conditioner frequency control program in the memory 34 through the processor 31 and executes any method or step in the first or second embodiment of the parking air conditioner frequency control method of this application.

[0108] Please see Figure 4 , Figure 4 This is a schematic diagram of the structure of the first embodiment of the parking air conditioning frequency control device of this application.

[0109] In this embodiment, the parking air conditioning frequency control device 40 includes: a voltage detection module 41, a temperature detection module 42, a frequency calculation module 43, and a frequency control module 44.

[0110] In this embodiment, the voltage detection module 41 is used to detect the real-time voltage of the vehicle battery, which is a battery used to power the parking air conditioner. The temperature detection module 42 is used to detect the current temperature inside the vehicle, either by detecting the temperature through sensors installed inside the vehicle or by detecting the air outlet and return vents of the parking air conditioner and calculating the temperature inside the vehicle. The frequency calculation module 43 calculates the temperature difference and voltage difference based on the real-time voltage detected by the voltage detection module 41 and the temperature detection module 42, as well as the temperature inside the vehicle, and calculates the temperature difference and voltage difference based on the protection voltage and the set temperature. It then calculates the target frequency of the parking air conditioner compressor according to a preset frequency formula. The frequency control module 44 applies the target frequency calculated by the frequency calculation module 43 to the parking air conditioner compressor, or shuts down the compressor when the real-time voltage is lower than the protection voltage.

[0111] The device in this embodiment detects the real-time voltage of the vehicle battery and the temperature inside the vehicle, and calculates the appropriate frequency of the parking air conditioning compressor based on these data, thereby effectively utilizing the vehicle battery and enabling the parking air conditioning to cool or heat quickly.

[0112] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A method for controlling the frequency of a parking air conditioner, characterized in that, The parking air conditioning frequency control method includes: The real-time voltage and protection voltage of the vehicle battery are obtained, and the vehicle battery is used to power the parking air conditioner; Calculate the voltage difference based on the real-time voltage and the protection voltage; The first coefficient is obtained based on the voltage difference; The process of obtaining the vehicle interior temperature and a set temperature further includes: obtaining the air outlet temperature and return air temperature of the parking air conditioner; calculating the vehicle interior temperature based on the air outlet temperature and the return air temperature; the step of calculating the vehicle interior temperature based on the air outlet temperature and the return air temperature includes: calculating the vehicle interior temperature according to a preset temperature formula; the preset temperature formula is Ta=[Tc*C+Th*(2-C)] / 2; where Ta is the vehicle interior temperature, Tc is the air outlet temperature, Th is the return air temperature, and C is a temperature correction coefficient; Calculate the temperature difference based on the vehicle interior temperature and the set temperature; The second coefficient is obtained based on the temperature difference; The target frequency is calculated based on the first coefficient and the second coefficient, and the compressor frequency of the parking air conditioner is adjusted to the target frequency. The step of calculating the target frequency based on the first coefficient and the second coefficient includes: calculating the target frequency according to a preset frequency formula; the preset frequency formula is F=FL+(FH-FL)*A*B; where F is the target frequency, FL is the lowest frequency of the compressor, FH is the highest frequency of the compressor, A is the first coefficient, and B is the second coefficient.

2. The parking air conditioning frequency control method according to claim 1, characterized in that, The first coefficient has a value range of 0-1, and the value of the first coefficient is proportional to the voltage difference.

3. The parking air conditioning frequency control method according to claim 1, characterized in that, The temperature difference is the absolute value of the difference between the interior temperature and the set temperature. The value of the second coefficient ranges from 0 to 1, and the value of the second coefficient is proportional to the temperature difference.

4. The parking air conditioning frequency control method according to any one of claims 1-3, characterized in that, The steps for obtaining the real-time voltage and protection voltage of the vehicle battery also include: Determine the magnitudes of the real-time voltage and the protection voltage; When the real-time voltage is less than the protection voltage, the compressor is shut down.

5. A parking air conditioner, characterized in that, The parking air conditioner includes: a compressor, a memory, a processor, and a frequency control program for the parking air conditioner stored in the memory and capable of running on the processor. When the frequency control program for the parking air conditioner is executed by the processor, it implements the frequency control method for the parking air conditioner as described in any one of claims 1 to 4.

6. A storage medium, characterized in that, The storage medium stores a frequency control program for a parking air conditioner, which, when executed by a processor, implements the frequency control method for a parking air conditioner as described in any one of claims 1 to 4.

7. A frequency control device for a parking air conditioner, characterized in that, The frequency control device controls the parking air conditioner using the parking air conditioner frequency control method according to any one of claims 1-4. The parking air conditioner frequency control device includes: a voltage detection module for detecting the real-time voltage of the vehicle battery, which supplies power to the parking air conditioner; a temperature detection module for detecting the interior temperature; a frequency calculation module for calculating the target frequency of the parking air conditioner compressor according to the real-time voltage and the interior temperature using a preset method; and a frequency control module for adjusting the compressor frequency to the target frequency.

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