Parking air conditioner refrigeration control method and system, computer equipment and storage medium

By judging the engine start-stop state based on the battery voltage change data and adjusting the air conditioner compressor frequency based on the temperature difference, the parking air conditioner's cooling effect and battery life under limited battery conditions is solved, and more efficient and safe air conditioning control is achieved.

CN119526995APending Publication Date: 2025-02-28GUANGDONG XITA FREQUENCY CONVERSION TECH CO LTD
View PDF 0 Cites 1 Cited by

Patent Information

Application Number
CN202411716709.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-02-28

AI Technical Summary

Technical Problem

Under the conditions of limited battery capacity, it is difficult to ensure the cooling effect while reasonably controlling the battery power failure speed, resulting in a slow drop in the temperature in the car in a high-temperature environment, and may cause the battery to run out and the vehicle to start normally.

Method used

By obtaining the voltage change data of the battery, the start and stop state of the engine is judged, and the frequency of the air conditioner compressor is adjusted based on the temperature difference inside and outside the vehicle and the start and stop state. Specific steps include accelerating the compressor frequency in the engine operating state to improve the refrigeration effect, and limiting the compressor frequency in the engine stop state to avoid excessive battery consumption.

Benefits of technology

It achieves the use of battery life while ensuring the cooling effect, avoiding the problem of the vehicle not being able to start normally due to battery exhaustion, and improving the efficiency and safety of parking air conditioners.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119526995A_ABST
    Figure CN119526995A_ABST
Patent Text Reader

Abstract

A parking air conditioner refrigeration control method comprises the following steps that when an air conditioner is started, voltage change data of a battery are obtained; determining the start-stop state of the engine based on the voltage change data; starting and stopping states of the engine, wherein the starting and stopping states comprise a running state and a stopping state; acquiring temperature difference between the temperature inside and outside the vehicle, and adjusting the frequency of the air conditioner compressor based on the temperature difference and the start-stop state. According to the method, the start-stop state of the engine is judged according to the voltage change data of the battery, when the engine is in the running state, power can be continuously supplied to the battery, at the moment, the situation that the vehicle cannot be normally started due to consumption of starting of the air conditioner is avoided, and therefore the frequency of the compressor can be increased quickly; therefore, the temperature in the vehicle is quickly reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of parking air conditioning control, and in particular to a parking air conditioning refrigeration control method, system, computer equipment and storage medium. Background Art

[0002] As an important vehicle-mounted device, parking air conditioners are widely used in trucks, RVs and other vehicles that rely on onboard batteries for power supply. However, due to the relatively limited capacity of the onboard batteries carried by these vehicles, the parking air conditioner must strictly control the entire machine current during operation to avoid excessive power consumption. This restriction directly leads to certain limitations in the cooling effect of parking air conditioners, especially in hot summer conditions.

[0003] In the conventional air conditioning cooling control mode, the parking air conditioner is often unable to fully exert its cooling power due to the current limitation, resulting in a slow drop in the temperature inside the car. In this case, if the driver arbitrarily increases the operating frequency of the air conditioning compressor, although a stronger cooling effect may be achieved in a short period of time, it will greatly accelerate the battery power consumption. Once the battery is exhausted, the vehicle may face the dilemma of being unable to start normally, causing great inconvenience to the driver. Therefore, how to reasonably control the battery power loss speed while ensuring the cooling effect of the parking air conditioner has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] In view of the above-mentioned defects, the purpose of the present invention is to propose a parking air conditioning refrigeration control method, system, computer equipment and storage medium to solve the problem of how to balance the refrigeration effect and compressor power when the vehicle is parked.

[0005] To achieve this purpose, the present invention adopts the following technical solution: a parking air conditioning refrigeration control method, comprising the following steps:

[0006] When the air conditioner is turned on, the battery voltage change data is obtained;

[0007] determining a start / stop state of the engine based on the voltage change data;

[0008] The start / stop state of the engine, wherein the start / stop state includes a running state and a stopped state;

[0009] The temperature difference between the inside and outside temperatures of the vehicle is obtained, and the frequency of the air conditioning compressor is adjusted based on the temperature difference and the start-stop status.

[0010] Preferably, when the start-stop state is the running state, step A and / or step B is selected to be executed based on the size of the temperature difference;

[0011] When the start-stop state is the stop state, execute step C.

[0012] In one embodiment, step A: starting the compressor at a first frequency increase rate, and increasing the frequency of the compressor to a set frequency;

[0013] Step B: After the frequency of the compressor reaches the set frequency, overclocking operation is performed until the temperature inside the vehicle reaches the regulated temperature, and the frequency of the compressor is restored to the set frequency;

[0014] Step C: starting normally at a regular frequency increase rate of the second frequency increase rate until the frequency of the compressor reaches the set frequency;

[0015] The first frequency increase rate is greater than the second frequency increase rate.

[0016] In another embodiment, step A: starting the compressor at a preset frequency;

[0017] Step B: regulating / starting the compressor at a preset overclocking frequency until the temperature inside the vehicle reaches the regulated temperature;

[0018] Step C: Start the compressor at an initial frequency, and adjust the frequency of the compressor at a preset frequency increase rate until the temperature in the vehicle reaches the adjusted temperature, wherein during the frequency increase process, the highest frequency will not exceed the preset frequency.

[0019] Preferably, when the temperature difference is greater than the first temperature threshold, step B is performed;

[0020] When the temperature difference is greater than the second temperature threshold and less than the first temperature threshold, execute step A. After the threshold time ends, determine whether the temperature difference is less than the second temperature threshold. If so, execute step A. If so, execute step B.

[0021] When the temperature difference is less than the second temperature threshold, step A is performed.

[0022] Preferably, the step of obtaining the preset frequency in step A is as follows:

[0023] Acquire the temperature inside the vehicle, and determine the first output power of the compressor of the heat pump air conditioning unit according to the temperature inside the vehicle;

[0024] Acquiring a remaining battery capacity of the battery, and adjusting the first output power based on the remaining battery capacity of the battery to obtain a second output power;

[0025] The obtained second output power is used as the preset frequency of the compressor.

[0026] Preferably, the steps of determining the first output power of the compressor of the heat pump air-conditioning unit according to the temperature inside the vehicle are as follows:

[0027] Divide the temperature inside the car into x zones;

[0028] Divide the compressor into y-order output powers corresponding to x regions one by one;

[0029] The temperature inside the vehicle is inversely proportional to the output power of the compressor. The output power of the compressor of the corresponding order is matched according to the temperature inside the vehicle, and the obtained output power is defined as the first output power.

[0030] Preferably, the steps of obtaining the remaining battery capacity of the battery and adjusting the first output power based on the remaining battery capacity of the battery to obtain the second output power are specifically as follows:

[0031] The method of obtaining the remaining battery capacity of the battery also includes the following steps:

[0032] Setting a first capacity threshold and a second capacity threshold and obtaining the remaining battery capacity of the current battery;

[0033] If the remaining battery capacity of the current battery is less than the first capacity threshold, the vehicle is defined as being in a low capacity state;

[0034] If the remaining battery capacity of the current battery is less than the second capacity threshold and greater than the first capacity threshold, the vehicle is defined to be in a normal capacity state;

[0035] If the current remaining battery capacity of the battery is greater than a second capacity threshold, the vehicle is defined as being in a high capacity state;

[0036] The step of adjusting the first output power based on the remaining battery capacity of the battery comprises the following steps:

[0037] When the battery is in a low capacity state, the first output power of the compressor is reduced by two steps and output to obtain a second output power;

[0038] When the battery is in a normal capacity state, the first output power of the compressor is reduced by one step and output to obtain a second output power;

[0039] When the battery is in a high capacity state, the first output power of the compressor is increased by one step and outputted to obtain a second output power.

[0040] A parking air conditioning refrigeration control system, using the parking air conditioning refrigeration control method, comprises a voltage acquisition module, a state determination module and a frequency adjustment module;

[0041] The voltage acquisition module is used to obtain the voltage change data of the battery when the air conditioner is turned on;

[0042] The state determination module is used to determine the start / stop state of the engine based on the voltage change data;

[0043] The frequency adjustment module is used to obtain the temperature difference between the inside and outside temperatures of the vehicle, and adjust the frequency of the air-conditioning compressor based on the temperature difference and the start / stop state.

[0044] A computer device comprising:

[0045] memory and at least one processor;

[0046] The memory is used to store at least one program;

[0047] When the program is executed by the processor, the processor implements the parking air conditioning refrigeration control method.

[0048] A storage medium containing computer executable instructions, wherein the computer executable instructions are used to execute a parking air conditioning refrigeration control method when executed by a computer processor.

[0049] One of the above technical solutions has the following advantages or beneficial effects: In the present invention, the battery problem is fully considered. First, in the present invention, the start and stop state of the engine is determined according to the voltage change data of the battery. When the engine is in operation, the battery can be continuously powered. At this time, the battery will not cause the vehicle to fail to start normally due to the consumption of the air conditioner startup. Therefore, the frequency of the compressor can be increased at this time, so that the temperature inside the vehicle drops rapidly. When the engine is in a stopped state, since the battery does not have a continuous energy supply, if the compressor frequency is increased quickly, the battery will be consumed too quickly. In addition, since there is no power supplement, the battery may be exhausted at this time, and the normal start of the vehicle cannot be maintained. At this time, the frequency of the compressor needs to be limited. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 is a flow chart of an embodiment of the method of the present invention.

[0051] Figure 2 It is a schematic diagram of the structure of an embodiment of the system of the present invention. DETAILED DESCRIPTION

[0052] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0053] In the description of the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0054] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] like Figures 1-2 As shown, a parking air conditioning refrigeration control method includes the following steps:

[0056] When the air conditioner is turned on, the battery voltage change data is obtained;

[0057] determining a start / stop state of the engine based on the voltage change data;

[0058] The start / stop state of the engine, wherein the start / stop state includes a running state and a stopped state;

[0059] The temperature difference between the inside and outside temperatures of the vehicle is obtained, and the frequency of the air conditioning compressor is adjusted based on the temperature difference and the start-stop status.

[0060] Since the vehicle is not moving when parked, and the battery capacity on board is relatively limited, if the frequency of the compressor is increased at will, although the temperature inside the vehicle can be quickly reduced, it may cause rapid consumption of the battery, resulting in the vehicle being unable to start normally. Therefore, in the present invention, the problem of the battery is fully taken into consideration. First of all, in the present invention, the start and stop state of the engine is determined based on the voltage change data of the battery. When the engine is in a running state, the battery can be continuously powered. At this time, the battery will not cause the vehicle to be unable to start normally due to the consumption of the air conditioner startup. Therefore, the frequency of the compressor can be increased at this time, so that the temperature inside the vehicle drops rapidly. When the engine is in a stopped state, since the battery does not have a continuous energy supply, if the frequency of the compressor is increased quickly, the battery will be consumed too quickly. In addition, since there is no power supply, the battery may be exhausted at this time, and the normal start of the vehicle cannot be maintained. At this time, the frequency of the compressor needs to be limited.

[0061] Of course, the present invention will also adjust the power of the compressor according to the temperature difference between the inside and outside of the car, thereby speeding up the cooling speed, allowing the temperature inside the car to quickly reach the adjusted temperature, thereby improving the user experience.

[0062] Specifically, the method for determining the start / stop state of the engine based on the voltage change data may be:

[0063] 1. The battery voltage drop rate can be detected to determine that if the drop rate does not exceed the preset rate after the air conditioner is turned on, the engine is considered to be started, otherwise the engine is considered to be stopped. The preset rate value range is [0.01V / min, 0.1V / min].

[0064] 2. By detecting the battery voltage, if the voltage is not lower than the preset voltage after the air conditioner is turned on, the engine is considered to be started, otherwise the engine is considered to be stopped. The preset voltage value range is [23V, 24V].

[0065] 3. The battery voltage drop can be detected to determine whether the engine is started or not. The voltage before and after the air conditioner is turned on can be compared. If the drop does not exceed the preset range, the engine is considered to be started, otherwise the engine is considered to be stopped. The preset range is [0.3V, 1V].

[0066] Preferably, when the start-stop state is the running state, step A and / or step B is selected to be executed based on the size of the temperature difference;

[0067] When the start-stop state is the stop state, execute step C.

[0068] Step B: When the compressor frequency reaches 60Hz, increase the frequency by an additional 30Hz, and finally overclock it at 90Hz until the temperature in the car reaches the regulated temperature, and then restore the compressor frequency to 60Hz.

[0069] In one embodiment of the present invention, the purpose is to quickly reduce the temperature inside the vehicle.

[0070] The first frequency increase rate may be 2 to 30 Hz / s, the second frequency increase rate may be 0.5 to 1 Hz / s, and the set frequency may be 60 Hz.

[0071] Step A: Start the compressor at a frequency increase rate of 30Hz / s (first frequency increase rate), and increase the frequency of the compressor to 60Hz (set frequency) within two seconds; Starting the compressor quickly at a frequency increase rate of 30Hz / s means that it can start working faster, thereby quickly responding to the need for temperature adjustment in the car. Within two seconds after starting, the frequency of the compressor gradually increases to 60Hz. This smooth transition helps reduce mechanical shock to the compressor and extend its service life. While ensuring the service life of the compressor, the temperature in the car can be quickly reduced to meet the user's cooling needs.

[0072] Step B: When the compressor frequency reaches 60Hz, it is increased by an additional 30Hz, and finally overclocked at 90Hz until the temperature in the car reaches the adjusted temperature (the temperature set by the user), and the compressor frequency is restored to 60Hz;

[0073] When the temperature difference is large, the conventional 60Hz frequency cannot quickly reduce the temperature inside the car to the adjusted temperature. Therefore, after the vehicle's compressor reaches 60Hz, it needs to operate with additional overclocking power. This high-frequency operation can significantly improve the cooling efficiency and make the temperature inside the car reach the adjusted temperature faster, improving the user experience.

[0074] Step C: Start normally at a regular frequency increase rate of 1 Hz / s (second frequency increase rate) until the frequency of the compressor reaches 60 Hz.

[0075] Since step C is executed when the engine is stopped, energy saving needs to be considered at this time, and the compressor cannot be started at a higher power at the first time. For this reason, the present invention starts normally at a conventional frequency increase rate of 1 Hz / s. In different frequency increases per second, the frequency of the compressor can be increased to 60 Hz in about 60 seconds. While saving energy, the compressor can also reach a higher power and increase the refrigeration speed.

[0076] In another embodiment of the present invention, the purpose is to be able to extend the duration of air conditioning on.

[0077] Step A: starting the compressor at a preset frequency;

[0078] Step B: regulating / starting the compressor at a preset overclocking frequency until the temperature inside the vehicle reaches the regulated temperature;

[0079] Step C: Start the compressor at an initial frequency, and adjust the frequency of the compressor at a preset frequency increase rate until the temperature in the vehicle reaches the adjusted temperature, wherein during the frequency increase process, the highest frequency will not exceed the preset frequency.

[0080] Preferably, when the temperature difference is greater than the first temperature threshold, step B is performed;

[0081] When the temperature difference is greater than the second temperature threshold and less than the first temperature threshold, execute step A. After the threshold time ends, determine whether the temperature difference is less than the second temperature threshold. If so, execute step A. If so, execute step B.

[0082] When the temperature difference is less than the second temperature threshold, step A is performed.

[0083] When the start-stop state is in the running state and the temperature difference is greater than the first temperature threshold, it means that the current temperature difference is large. Through step B, the compressor can be started directly with an overclocked frequency to speed up the temperature drop. When the temperature in the car reaches the adjusted temperature, the air conditioner can be continuously controlled at a preset frequency to achieve energy-saving effect.

[0084] When the start-stop state is the running state, and the temperature difference is greater than the second temperature threshold and less than the first temperature threshold, it means that the temperature difference is still relatively large. At this time, you can first use step A to run for 5 minutes, and then detect the temperature difference again. When the temperature difference is still greater than the second temperature threshold, execute step B to accelerate the temperature drop in the car. When the temperature difference is less than the second threshold, continue step A to continue cooling.

[0085] When the start-stop state is stopped, since the engine is not started, the air conditioner is powered by the battery, so that the air conditioner can continue to operate. However, the battery capacity is limited. At this time, in order to continue to cool the car, the compressor can only be started at a lower initial frequency.

[0086] Preferably, the step of obtaining the preset frequency in step A is as follows:

[0087] Acquire the temperature inside the vehicle, and determine the first output power of the compressor of the heat pump air conditioning unit according to the temperature inside the vehicle;

[0088] Acquiring a remaining battery capacity of the battery, and adjusting the first output power based on the remaining battery capacity of the battery to obtain a second output power;

[0089] The obtained second output power is used as the preset frequency of the compressor.

[0090] Multiple temperature intervals will be set, and each temperature interval will correspond to a first output power. When the temperature inside the vehicle is obtained, the first output power of the compressor will be selected according to the temperature interval into which the temperature inside the vehicle falls.

[0091] It is worth mentioning that when parking, the high voltage of the battery needs to be output to the engine to control the air conditioner. The capacity of the battery is related to the output voltage control. The larger the capacity of the battery, the longer it can continuously output high voltage to control the air conditioner. At this time, there is more margin to increase the first output power. While ensuring that the vehicle can run normally in the subsequent start-up, the higher second output power can be used as the preset frequency. This can further improve the cooling effect and speed up the cooling of the car.

[0092] Preferably, the steps of determining the first output power of the compressor of the heat pump air-conditioning unit according to the temperature inside the vehicle are as follows:

[0093] Divide the temperature inside the car into x zones;

[0094] Divide the compressor into y-order output powers corresponding to x regions one by one;

[0095] The temperature inside the vehicle is inversely proportional to the output power of the compressor. The output power of the compressor of the corresponding order is matched according to the temperature inside the vehicle, and the obtained output power is defined as the first output power.

[0096] In this embodiment, the temperature inside the vehicle is divided into x areas according to the different temperatures inside the vehicle, and the temperature range of each area is consistent. The compressor is divided into y-order output powers corresponding to the x areas. It should be noted here that the more areas the temperature inside the vehicle is divided into, the more output power orders of the corresponding compressor that match the temperature inside the vehicle, and the more accurate the compressor's control over the temperature and pressure of the refrigerant. However, the more output power orders of the compressor, the more frequency changes of the compressor. An increase in the number of frequency conversions will accelerate the attenuation of the compressor and reduce the service life of the compressor. Therefore, the temperature inside the vehicle can be divided into areas according to the actual situation of the compressor. In this embodiment, x=y, and x>2, and x and y are both positive integers.

[0097] To further explain, the temperature inside the car is inversely proportional to the output power of the compressor, that is, the higher the temperature inside the car, the lower the output power of the corresponding order of the compressor, and the lower the temperature inside the car, the higher the corresponding order of the compressor, ensuring that the temperature inside the car is always kept within the required range.

[0098] Preferably, the steps of obtaining the remaining battery capacity of the battery and adjusting the first output power based on the remaining battery capacity of the battery to obtain the second output power are specifically as follows:

[0099] The method of obtaining the remaining battery capacity of the battery also includes the following steps:

[0100] Setting a first capacity threshold and a second capacity threshold and obtaining the remaining battery capacity of the current battery;

[0101] If the remaining battery capacity of the current battery is less than the first capacity threshold, the vehicle is defined as being in a low capacity state;

[0102] If the remaining battery capacity of the current battery is less than the second capacity threshold and greater than the first capacity threshold, the vehicle is defined to be in a normal capacity state;

[0103] If the current remaining battery capacity of the battery is greater than a second capacity threshold, the vehicle is defined as being in a high capacity state;

[0104] The step of adjusting the first output power based on the remaining battery capacity of the battery comprises the following steps:

[0105] When the battery is in a low capacity state, the first output power of the compressor is reduced by two steps and output to obtain a second output power;

[0106] When the battery is in a normal capacity state, the first output power of the compressor is reduced by one step and output to obtain a second output power;

[0107] When the battery is in a high capacity state, the first output power of the compressor is increased by one step and outputted to obtain a second output power.

[0108] When the battery is in a low capacity state, if the first output power is detected and used as the second output power, the power battery consumption will be accelerated, which may cause the battery to be out of power and thus unable to start the vehicle. By reducing the two levels and outputting the second output power, the cooling time of the air conditioner can be extended. Under the same cooling time, the energy consumption can be reduced.

[0109] When the battery is in a normal capacity state, but compared to the vehicle in a low capacity state, the remaining capacity of the battery is still relatively small. At this time, the first output power of the compressor is reduced by one level to obtain the second output power. The second output power at this time can well control the temperature in the vehicle to maintain at the adjusted temperature, and can also extend the cooling time of the air conditioner accordingly.

[0110] The vehicle is in a high-capacity state, which indicates that the battery has excess capacity, sufficient to support rapid cooling of the air conditioner. The first output power of the compressor is increased by one level and output to obtain a second output power, ensuring that the refrigerant can maintain a certain pressure and temperature under the action of the compressor, thereby speeding up the cooling speed and better controlling the temperature inside the vehicle to maintain the regulated temperature.

[0111] A parking air conditioning refrigeration control system, using the parking air conditioning refrigeration control method, comprises a voltage acquisition module, a state determination module and a frequency adjustment module;

[0112] The voltage acquisition module is used to obtain the voltage change data of the battery when the air conditioner is turned on;

[0113] The state determination module is used to determine the start / stop state of the engine based on the voltage change data;

[0114] The frequency adjustment module is used to obtain the temperature difference between the inside and outside temperatures of the vehicle, and adjust the frequency of the air-conditioning compressor based on the temperature difference and the start / stop state.

[0115] A computer device comprising:

[0116] memory and at least one processor;

[0117] The memory is used to store at least one program;

[0118] When the program is executed by the processor, the processor implements the parking air conditioning refrigeration control method.

[0119] A storage medium containing computer executable instructions, wherein the computer executable instructions are used to execute a parking air conditioning refrigeration control method when executed by a computer processor.

[0120] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0121] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A parking air conditioning refrigeration control method, characterized in that: The steps include: When the air conditioner is turned on, the battery voltage change data is obtained; determining a start / stop state of the engine based on the voltage change data; The start / stop state of the engine, wherein the start / stop state includes a running state and a stopped state; The temperature difference between the inside and outside temperatures of the vehicle is obtained, and the frequency of the air conditioning compressor is adjusted based on the temperature difference and the start-stop status.

2. A parking air conditioning refrigeration control method according to claim 1, characterized in that: When the start-stop state is the running state, based on the size of the temperature difference, step A and / or step B is selected for execution; When the start-stop state is the stop state, execute step C.

3. A parking air conditioning refrigeration control method according to claim 2, characterized in that: Step A: starting the compressor at a first frequency increase rate, and increasing the frequency of the compressor to a set frequency; Step B: After the frequency of the compressor reaches the set frequency, overclocking operation is performed until the temperature inside the vehicle reaches the regulated temperature, and the frequency of the compressor is restored to the set frequency; Step C: starting normally at a regular frequency increase rate of the second frequency increase rate until the frequency of the compressor reaches the set frequency; The first frequency increase rate is greater than the second frequency increase rate.

4. A parking air conditioning refrigeration control method according to claim 2, characterized in that: Step A: starting the compressor at a preset frequency; Step B: regulating / starting the compressor at a preset overclocking frequency until the temperature inside the vehicle reaches the regulated temperature; Step C: Start the compressor at an initial frequency, and adjust the frequency of the compressor at a preset frequency increase rate until the temperature in the vehicle reaches the adjusted temperature, wherein during the frequency increase process, the highest frequency will not exceed the preset frequency.

5. A parking air conditioning refrigeration control method according to claim 3 or 4, characterized in that: When the temperature difference is greater than the first temperature threshold, executing step B; When the temperature difference is greater than the second temperature threshold and less than the first temperature threshold, execute step A. After the threshold time ends, determine whether the temperature difference is less than the second temperature threshold. If so, execute step A. If so, execute step B. When the temperature difference is less than the second temperature threshold, step A is performed.

6. A parking air conditioning refrigeration control method according to claim 4, characterized in that: The steps for obtaining the preset frequency in step A are as follows: Acquire the temperature inside the vehicle, and determine the first output power of the compressor of the heat pump air conditioning unit according to the temperature inside the vehicle; Acquiring a remaining battery capacity of the battery, and adjusting the first output power based on the remaining battery capacity of the battery to obtain a second output power; Using the obtained second output power as the preset frequency of the compressor; The steps for the first output power of the compressor are as follows: Divide the temperature inside the car into x zones; Divide the compressor into y-order output powers corresponding to x regions one by one; The temperature inside the vehicle is inversely proportional to the output power of the compressor. The output power of the compressor of the corresponding order is matched according to the temperature inside the vehicle, and the obtained output power is defined as the first output power.

7. A parking air conditioning refrigeration control method according to claim 6, characterized in that: The steps of obtaining the remaining battery capacity of the battery and adjusting the first output power based on the remaining battery capacity of the battery to obtain the second output power are specifically as follows: The method of obtaining the remaining battery capacity of the battery also includes the following steps: Setting a first capacity threshold and a second capacity threshold and obtaining the remaining battery capacity of the current battery; If the remaining battery capacity of the current battery is less than the first capacity threshold, the vehicle is defined as being in a low capacity state; If the remaining battery capacity of the current battery is less than the second capacity threshold and greater than the first capacity threshold, the vehicle is defined to be in a normal capacity state; If the current remaining battery capacity of the battery is greater than a second capacity threshold, the vehicle is defined as being in a high capacity state; The step of adjusting the first output power based on the remaining battery capacity of the battery comprises the following steps: When the battery is in a low capacity state, the first output power of the compressor is reduced by two steps and output to obtain a second output power; When the battery is in a normal capacity state, the first output power of the compressor is reduced by one step and output to obtain a second output power; When the battery is in a high capacity state, the first output power of the compressor is increased by one step and outputted to obtain a second output power.

8. A parking air conditioning refrigeration control system, using a parking air conditioning refrigeration control method according to any one of claims 1 to 7, characterized in that: It includes a voltage acquisition module, a state determination module and a frequency adjustment module; The voltage acquisition module is used to obtain the voltage change data of the battery when the air conditioner is turned on; The state determination module is used to determine the start / stop state of the engine based on the voltage change data; The frequency adjustment module is used to obtain the temperature difference between the inside and outside temperatures of the vehicle, and adjust the frequency of the air-conditioning compressor based on the temperature difference and the start / stop state.

9. A computer device, characterized in that: include: memory and at least one processor; The memory is used to store at least one program; When the program is executed by the processor, the processor implements a parking air conditioning refrigeration control method as described in any one of claims 1 to 7.

10. A storage medium containing computer executable instructions, characterized in that: The computer executable instructions are used to execute a parking air conditioning refrigeration control method as claimed in any one of claims 1 to 7 when executed by a computer processor.

Citation Information

Cited By

  • Intelligent parking air conditioner control system and method for excavator

    CN121043586A