Air conditioner energy-saving control method, device and equipment and storage medium

Abstract

The invention discloses an air conditioner energy-saving control method, device and equipment and a storage medium, and relates to the technical field of air conditioner control, and the air conditioner energy-saving control method comprises the steps that when air conditioner energy-saving control of an air conditioner control panel is obtained, the working states of a passenger compartment and a battery are detected; if the working state of the passenger compartment and the battery is normal operation, air conditioner energy-saving control is carried out according to the vehicle state; and if the working states of the passenger compartment and the battery are not operated, the air conditioner energy-saving control is quitted. By adjusting the response and control precision of the air conditioner and the heat management system of the pure electric vehicle, power consumption is saved under the condition that extra cost is not increased, and the full-charge endurance mileage of the electric vehicle is increased.

Description

Technical Field

[0001] The present application relates to the field of air conditioning control technology, and in particular to an air conditioning energy-saving control method, device, equipment and storage medium. Background Art

[0002] In actual use, the energy consumption of the air-conditioning system has a significant impact on the range of electric vehicles, especially in high temperature environments. The frequency of air-conditioning use increases, resulting in accelerated battery consumption, thereby reducing the actual range of electric vehicles.

[0003] At present, the air conditioning system of pure electric vehicles usually adopts a simple on-off control mode, that is, the temperature and wind speed of the air conditioner are directly adjusted according to the comfort needs of the passengers. Although this control method is easy to operate, it lacks the fine management of the balance between energy consumption and comfort. In some cases, in order to pursue rapid cooling, the air conditioning system may operate in a high-energy consumption mode, which not only shortens the battery life of the electric vehicle, but also increases energy waste.

[0004] In a high temperature environment, in order to quickly reduce the temperature inside the car, the air conditioning system may run at high power for a long time, causing the battery to consume too quickly. In addition, the simple control mode cannot be dynamically adjusted according to the actual temperature requirements of the battery and the passenger compartment, so that the air conditioning system may not provide comfort in some cases, and it is also unable to maximize energy conservation. Therefore, how to achieve refined energy-saving control of the air conditioning system has become an urgent problem to be solved. Summary of the invention

[0005] The purpose of the present application is to provide an air conditioning energy-saving control method, device, equipment and storage medium, aiming to solve the technical problem of how to achieve refined energy-saving control of air conditioning systems. To achieve the above purpose, the present application proposes an air conditioning energy-saving control method, which is applied to an automobile air conditioner, the automobile air conditioner includes an outdoor heat exchanger, a compressor, a four-way valve, a passenger compartment refrigeration circuit and a battery refrigeration circuit, the passenger compartment refrigeration circuit includes a passenger compartment electronic expansion valve and an evaporator, the battery refrigeration circuit includes a battery electronic expansion valve, a water pump, a heat exchanger and a battery, and the method includes: When obtaining the air conditioning energy saving control of the air conditioning control panel, detect the working status of the evaporator and the battery; If the working state of the evaporator and the battery is normal operation, air conditioning energy saving control is performed according to the vehicle state; If the working status of the evaporator and the battery is not in operation, the air conditioning energy-saving control is exited.

[0006] In one embodiment, the first end of the four-way valve and the second end of the four-way valve are respectively connected in series with the compressor, the passenger compartment refrigeration circuit and the battery refrigeration circuit are connected in parallel through the third end of the four-way valve and the fourth end of the four-way valve, the passenger compartment electronic expansion valve is connected in series with the evaporator, the battery electronic expansion valve is connected in series with the plate heat exchanger, and the heat exchanger is connected in series with the battery; If the working state of the evaporator and the battery is normal operation, the step of performing air conditioning energy saving control according to the vehicle state includes: Get the current battery temperature; If the current battery temperature is greater than or equal to a preset battery temperature threshold, the passenger compartment electronic expansion valve is closed, and the battery electronic expansion valve is opened to perform battery energy-saving heat dissipation control; If the current battery temperature is lower than the preset battery temperature threshold, the passenger compartment electronic expansion valve is opened, and the battery electronic expansion valve is closed to perform energy-saving and heat dissipation control for the passenger compartment.

[0007] In one embodiment, the battery energy-saving heat dissipation control is performed, including: Get battery control temperature and battery temperature table; querying the battery temperature table according to the current battery temperature to obtain a battery offset temperature, wherein the battery temperature table contains a mapping relationship between the current battery temperature and the battery offset temperature; A target battery temperature is obtained based on the battery control temperature and the battery offset temperature, and battery energy-saving and heat dissipation control is performed according to the target battery temperature.

[0008] In one embodiment, the energy-saving heat dissipation control of the passenger compartment includes: Get the operating conditions of the air conditioner; When the air conditioner operation condition is a manual condition, a first target evaporator temperature is obtained according to the evaporator control temperature, the target circulation position and the preset temperature offset value, and energy-saving heat dissipation control of the passenger compartment is performed according to the first target evaporator temperature; When the air-conditioning operating condition is the automatic condition, a second target evaporator temperature is obtained according to the evaporator control temperature and the preset temperature offset value, and energy-saving heat dissipation control of the passenger compartment is performed according to the second target evaporator temperature.

[0009] In one embodiment, a first target evaporator temperature is obtained according to the evaporator control temperature, the target circulation position and the preset temperature offset value, and energy-saving heat dissipation control of the passenger compartment is performed according to the first target evaporator temperature, including: Get cycle position table, relative humidity and window temperature and dew point temperature; determining a fogging risk level based on the vehicle window temperature and the dew point temperature; querying the circulation position table according to the relative humidity to obtain a corresponding fogging risk level threshold; When the fogging risk level is less than or equal to the fogging risk level threshold, obtaining a target circulation position; A first target evaporator temperature is obtained according to the evaporator control temperature, the target circulation position and the preset temperature offset value, and energy-saving heat dissipation control of the passenger compartment is performed according to the first target evaporator temperature.

[0010] In one embodiment, a second target evaporator temperature is obtained according to the evaporator control temperature and the preset temperature offset value, and energy-saving heat dissipation control of the passenger compartment is performed according to the second target evaporator temperature, including: Get the air volume position, current in-car temperature, and in-car temperature offset table; Obtaining a second target evaporator temperature according to the evaporator control temperature and the preset temperature offset value; Obtaining a target air volume level according to the air volume level, and querying the in-vehicle temperature offset table to obtain an in-vehicle temperature offset value; Obtaining a target vehicle interior temperature according to the current vehicle interior temperature and the vehicle interior temperature offset value; The compressor speed is controlled according to the target in-vehicle temperature, and energy-saving and heat dissipation control of the passenger compartment is completed through the target air volume gear and the second target evaporator temperature.

[0011] In one embodiment, if the current battery temperature is less than the preset battery temperature threshold, the passenger compartment electronic expansion valve is opened, and the battery electronic expansion valve is closed, so that before the passenger compartment energy-saving heat dissipation control is performed, the method further includes: Obtaining an initial evaporator control temperature, a state of a vehicle door and window, a first preset time threshold, and a second preset time threshold; If the state of the automobile door and window is open, obtaining the opening time of the automobile door and window; If the vehicle door and window opening time is greater than or equal to the first preset time threshold and less than the second preset time threshold, the evaporator control temperature is obtained according to the initial evaporator control temperature, and energy-saving heat dissipation control of the passenger compartment is performed according to the evaporator control temperature; If the vehicle door and window opening time is greater than or equal to the second preset time threshold, the compressor is turned off.

[0012] In addition, to achieve the above purpose, the present application also proposes an air conditioning energy-saving control device, the device comprising: An acquisition module, used to detect the working status of the evaporator and the battery when acquiring the air conditioning energy-saving control of the air conditioning control panel; A completion module is used to perform air conditioning energy saving control according to the vehicle state if the working state of the evaporator and the battery is normal operation; The exit module is used to exit the air conditioning energy-saving control if the working status of the evaporator and the battery is not running.

[0013] In addition, to achieve the above-mentioned purpose, the present application also proposes a vehicle, which includes a car air conditioner, and the car air conditioner executes the steps of the air conditioning energy-saving control method as described above.

[0014] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, which is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by the processor, the steps of the air conditioning energy-saving control method as described above are implemented.

[0015] One or more technical solutions proposed in this application have at least the following technical effects: When obtaining the air conditioning energy-saving control instruction from the air conditioning control panel, this application first detects the working status of the evaporator and the battery to ensure that they are in normal operating state. If the evaporator and the battery are working normally, the air conditioning energy-saving control strategy will be executed according to the current vehicle status, such as battery temperature, air conditioning operating conditions, etc. This may include adjusting the opening and closing state of the electronic expansion valve to optimize the heat dissipation efficiency of the evaporator and the battery. On the contrary, if it is detected that the evaporator and the battery are not in operation, the air conditioning energy-saving control will be exited. This application realizes dynamic adjustment of air conditioning operation according to actual needs by intelligently detecting and responding to the working status of the evaporator and the battery, thereby achieving energy-saving effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 A flowchart of the first embodiment of the air conditioning energy saving control method of the present application is provided; Figure 2 A flow chart of the second embodiment of the air conditioning energy saving control method of the present application; Figure 3 This is a schematic diagram of the specific connection relationship principle of the air conditioning energy-saving control method of this application; Figure 4 This is a schematic diagram of the system architecture of the air conditioning energy-saving control method of this application; Figure 5 This is a schematic diagram of the module structure of the air-conditioning energy-saving control device according to an embodiment of the present application; Figure 6 Schematic diagram of the equipment structure of the hardware operating environment involved in the air conditioning energy-saving control method in the embodiment of the present application.

[0019] Description of Figure Numbers: Outdoor radiator A, compressor B, passenger compartment electronic expansion valve C1, battery electronic expansion valve C2, evaporator D, heat exchanger E, battery F, water pump G, four-way valve H.

[0020] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0021] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0022] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0023] With the intensification of the global energy crisis and the increasing severity of environmental pollution, the market demand and industrial scale of pure electric vehicles as a clean energy means of transportation are growing rapidly. However, the endurance of pure electric vehicles has always been one of the focuses of consumers and manufacturers. In actual use, the energy consumption of the air-conditioning system has a significant impact on the endurance of electric vehicles, especially in high temperature environments, the frequency of air-conditioning use increases, resulting in accelerated battery consumption, thereby reducing the actual endurance of electric vehicles. At present, the air-conditioning system of pure electric vehicles usually adopts a simple switch control mode, that is, the temperature and wind speed of the air-conditioning are directly adjusted according to the comfort requirements of the passengers. Although this control method is easy to operate, it lacks fine management of the balance between energy consumption and comfort. In some cases, in order to pursue rapid cooling, the air-conditioning system may operate in a high-energy consumption mode, which not only shortens the endurance of electric vehicles, but also increases energy waste. In a high temperature environment, in order to quickly reduce the temperature in the car, the air-conditioning system may run at high power for a long time, resulting in excessive battery power consumption. In addition, the simple control mode cannot be dynamically adjusted according to the actual temperature requirements of the battery and the passenger compartment, so that the air-conditioning system may not provide comfort in some cases, and it is also unable to maximize energy conservation.

[0024] The main solution of the embodiment of the present application is: when obtaining the air conditioning energy-saving control instruction of the air conditioning control panel, the present application first detects the working status of the evaporator and the battery to ensure that they are in normal operating state. If the evaporator and the battery are working normally, the air conditioning energy-saving control strategy will be executed according to the current vehicle status, such as battery temperature, air conditioning operating conditions, etc., which may include adjusting the opening and closing state of the electronic expansion valve to optimize the heat dissipation efficiency of the evaporator and the battery. On the contrary, if it is detected that the evaporator and the battery are not in operation, the air conditioning energy-saving control will be exited. The present application realizes dynamic adjustment of air conditioning operation according to actual needs by intelligently detecting and responding to the working status of the evaporator and the battery, thereby achieving energy-saving effects.

[0025] It should be noted that the execution subject of the embodiment of the present application may be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device capable of realizing the above functions, a car air conditioner, etc. The following takes a car air conditioner as an example to illustrate this embodiment and the following embodiments.

[0026] Based on this, the embodiment of the present application provides an air conditioning energy saving control method, referring to Figure 1 , Figure 1 This is a flow chart of the first embodiment of the air conditioning energy-saving control method of the present application.

[0027] In this embodiment, the air conditioning energy-saving control method is applied to a car air conditioner, the car air conditioner includes an outdoor heat exchanger, a compressor, a four-way valve, a passenger compartment refrigeration circuit and a battery refrigeration circuit, the passenger compartment refrigeration circuit includes a passenger compartment electronic expansion valve and an evaporator, the battery refrigeration circuit includes a battery electronic expansion valve, a water pump, a heat exchanger and a battery, and the method includes steps S10 to S30: Step S10, when acquiring the air conditioning energy-saving control of the air conditioning control panel, detecting the working status of the evaporator and the battery; It should be noted that air conditioning energy-saving control can be a technology or method that reduces energy consumption by intelligently adjusting the air conditioning system, with the aim of reducing the power consumption of electric vehicles while ensuring passenger comfort, thereby extending battery life. Specific operations can be fine management of various parameters of the air conditioning system, such as temperature settings, wind speed, compressor operating mode, etc., and their coordination with other vehicle systems (such as battery thermal management). The air conditioning control panel can be a user interface inside the vehicle for adjusting the settings of the air conditioning system, which allows the driver and passengers to adjust the temperature, wind speed, wind direction, etc. as needed to obtain a comfortable in-vehicle environment. The working state of the evaporator can be whether the in-vehicle air conditioning system is working, and the specific working mode (such as cooling, heating, ventilation, etc.), and can also include the temperature setting and actual temperature felt by the occupants. The working state of the battery can be the battery's charge state, temperature, and whether it is powering the air conditioning system. Excessive battery temperature will affect its performance and life, so it needs to be managed through the cooling system.

[0028] It is understandable that when obtaining air conditioning energy-saving control, sensors are used to monitor the working conditions of the evaporator and the battery to ensure that they are operating normally to meet the needs of reducing the power loss of electric vehicles, thereby improving the battery life.

[0029] Step S20, if the working state of the evaporator and the battery is normal operation, air conditioning energy saving control is performed according to the vehicle state; It should be noted that normal operation means that both the evaporator and the battery are in a normal working state, that is, the evaporator can provide a suitable temperature according to the setting, and the battery is in a safe operating temperature range, without overheating or overcooling, and can stably provide the vehicle with power and the electric energy required by the air conditioning system. The vehicle state refers to the overall operating status of the current vehicle, including but not limited to the battery state, such as the battery power, temperature, charging state, etc.; environmental conditions, such as environmental factors such as outdoor temperature, humidity, and sunlight intensity; air conditioning settings, such as the target temperature, wind speed, and wind direction set by the passenger; in-vehicle sensor data, such as in-vehicle temperature and humidity sensor readings, used to evaluate passenger comfort; system fault status, such as whether there is a fault in each system of the vehicle, and whether it affects the normal operation of the air conditioner and the battery. Based on this vehicle state information, the air conditioning energy-saving control strategy can dynamically adjust the working mode of the air conditioner, such as adjusting the opening and closing of the compressor, the opening of the electronic expansion valve, the fan speed, etc., to achieve the best energy efficiency ratio under different driving conditions and passenger needs, ensuring that the vehicle can maintain the comfort of the passengers while saving energy.

[0030] It is understandable that after confirming that the evaporator and battery are in good working condition, the air-conditioning system's working mode will be intelligently adjusted according to the current specific conditions of the vehicle, such as battery temperature, vehicle speed, external ambient temperature, air-conditioning parameters set by passengers, etc., to optimize energy consumption, thereby reducing energy consumption while maintaining passenger comfort and extending the endurance of electric vehicles.

[0031] Step S30: If the working status of the evaporator and the battery is not in operation, then exit the air conditioning energy saving control.

[0032] It is understandable that when it is detected that the evaporator (the component responsible for cooling the air) and the battery in the vehicle are not in working condition, that is, there is no cooling demand or the battery does not need to be cooled, the air conditioning energy-saving control function will be stopped because the air conditioning system is not running at this time and no energy-saving operation is required to maintain the comfort of the passenger compartment or the optimal operating temperature of the battery.

[0033] The present embodiment provides an air conditioning energy-saving control method. When obtaining the air conditioning energy-saving control instruction of the air conditioning control panel, the present embodiment first detects the working status of the evaporator and the battery to ensure that they are in normal operating state. If the evaporator and the battery are working normally, the air conditioning energy-saving control strategy will be executed according to the current vehicle status, such as battery temperature, air conditioning operating conditions, etc., which may include adjusting the opening and closing state of the electronic expansion valve to optimize the heat dissipation efficiency of the evaporator and the battery. On the contrary, if it is detected that the evaporator and the battery are not in operation, the air conditioning energy-saving control will be exited. The present embodiment realizes dynamic adjustment of the air conditioning operation according to actual needs by intelligently detecting and responding to the working status of the evaporator and the battery, thereby achieving energy-saving effects.

[0034] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can refer to the above introduction, and will not be repeated later. Figure 2 , Figure 2 This is a flow chart of the second embodiment of the air conditioning energy-saving control method of the present application. The first end of the four-way valve and the second end of the four-way valve are respectively connected in series with the compressor, the passenger compartment refrigeration circuit and the battery refrigeration circuit are connected in parallel through the third end of the four-way valve and the fourth end of the four-way valve, the passenger compartment electronic expansion valve is connected in series with the evaporator, the battery electronic expansion valve is connected in series with the plate heat exchanger, and the heat exchanger is connected in series with the battery; the specific connection relationship principle can be seen Figure 3 , the system architecture is visible Figure 4 The step S20 of the air conditioning energy-saving control method includes steps S21 to S23: Step S21, obtaining the current battery temperature; It should be noted that the current battery temperature refers to the actual temperature of the battery at the current moment, which is measured in real time by sensors in the battery management system (BMS). Battery temperature is an important parameter for evaluating the working status and health of the battery, and is essential for ensuring battery performance, safety, and life. Batteries generate heat during the charging and discharging process, so their temperature needs to be monitored to prevent overheating, which may damage the battery or affect its performance. In the air conditioning energy-saving control method of pure electric vehicles, the current battery temperature is obtained in order to adjust the operation of the air conditioning and thermal management system according to the actual temperature of the battery to achieve energy saving and keep the battery within the optimal operating temperature range.

[0035] It is understandable that the current battery temperature refers to the actual temperature value measured by the temperature sensor embedded in the battery management system at a specific moment. This temperature value is critical for monitoring the working status of the battery, ensuring battery performance and safety, and extending battery life. Because in the air-conditioning energy-saving control of electric vehicles, knowing the real-time temperature of the battery helps the system adjust the air-conditioning and thermal management strategies according to the battery temperature to optimize energy consumption and keep the battery within an appropriate operating temperature range.

[0036] Step S22, if the current battery temperature is greater than or equal to a preset battery temperature threshold, closing the passenger compartment electronic expansion valve and opening the battery electronic expansion valve to perform battery energy-saving heat dissipation control; It should be noted that the preset battery temperature threshold may be a temperature limit value set to ensure battery safety and performance. When the battery temperature reaches or exceeds this value, specific thermal management measures will be automatically initiated to control the battery temperature and prevent overheating. The passenger compartment electronic expansion valve may be an electronically controlled valve installed in the passenger compartment refrigeration circuit to control the flow of refrigerant to the evaporator. When cooling is required for the passenger compartment, the expansion valve opens to allow refrigerant to flow into the evaporator to absorb heat in the cabin for cooling; when cooling is not required or battery cooling is required as a priority, the expansion valve closes to reduce the flow of refrigerant to the passenger compartment. The battery electronic expansion valve may be an electronically controlled valve installed in the battery refrigeration circuit to control the flow of refrigerant to the battery cooling system. When the battery temperature rises to a preset threshold, the battery electronic expansion valve opens to allow refrigerant to flow through the battery cooling system to help the battery dissipate heat to maintain the battery within a safe and efficient operating temperature range.

[0037] It is understandable that the battery temperature has reached or exceeded the critical point set to ensure its safety and performance. At this time, the passenger compartment electronic expansion valve will be closed to reduce the cooling of the passenger compartment, and the battery electronic expansion valve will be opened to enhance the cooling effect of the battery, perform battery energy-saving and heat dissipation control, and ensure that the battery temperature is effectively controlled, thereby protecting the battery and extending its service life.

[0038] As an example, the battery energy-saving and heat dissipation control includes: obtaining a battery control temperature and a battery temperature table; querying the battery temperature table according to the current battery temperature to obtain a battery offset temperature, wherein the battery temperature table contains a mapping relationship between the current battery temperature and the battery offset temperature; obtaining a target battery temperature based on the battery control temperature and the battery offset temperature, and performing battery energy-saving and heat dissipation control according to the target battery temperature.

[0039] Among them, the battery control temperature can be the ideal operating temperature or temperature range set by the battery management system, which is designed to ensure optimal battery performance and longest life. The battery temperature table can be a predefined data table that contains the mapping relationship between different current battery temperatures and corresponding battery offset temperatures. This table is used to adjust the control strategy according to the actual measured battery temperature. The battery offset temperature can be the deviation value from the battery control temperature calculated for the current battery temperature based on the battery temperature table. This offset value is used to adjust the target temperature to compensate for the difference between the actual temperature and the ideal control temperature. The target battery temperature can be the actual battery temperature target that should be calculated after taking into account the battery offset temperature. This target temperature is the basis for battery energy-saving and heat dissipation control. According to this target, the cooling or heating measures are adjusted to ensure that the battery operates within the optimal temperature range. The battery temperature table can be shown in Table 1: Table 1 Battery temperature table

[0040] Specifically, obtaining the battery control temperature and the battery temperature table involves obtaining the preset ideal operating temperature from the battery management system and referring to the battery temperature table to determine the correspondence between the current battery temperature and the battery offset temperature. The battery offset temperature can be the difference between the actual battery temperature and the control temperature, while the target battery temperature is the ideal temperature target calculated based on the control temperature and the offset temperature. Based on this target battery temperature, the battery energy-saving heat dissipation control will be performed, and the cooling system will be adjusted to ensure that the battery is maintained at the optimal operating temperature, thereby optimizing the battery performance and extending its service life.

[0041] Step S23, if the current battery temperature is lower than the preset battery temperature threshold, the passenger compartment electronic expansion valve is opened, and the battery electronic expansion valve is closed to perform energy-saving and heat dissipation control for the passenger compartment.

[0042] It is understandable that when the battery temperature is within a safe range, the passenger compartment electronic expansion valve will be opened to provide the required cooling for the passenger compartment, while the battery electronic expansion valve will be closed to reduce additional cooling of the battery, thereby performing energy-saving and heat dissipation control for the passenger compartment, aiming to optimize energy consumption and maintain passenger comfort while avoiding unnecessary cooling of the battery to improve overall energy utilization efficiency.

[0043] As an example, if the current battery temperature is lower than the preset battery temperature threshold, the passenger compartment electronic expansion valve is opened and the battery electronic expansion valve is closed, so as to perform energy-saving and heat dissipation control for the passenger compartment before performing: obtaining the initial evaporator control temperature, the vehicle door and window status, the first preset time threshold and the second preset time threshold; if the vehicle door and window status is open, obtaining the vehicle door and window opening time; if the vehicle door and window opening time is greater than or equal to the first preset time threshold and less than the second preset time threshold, obtaining the evaporator control temperature according to the initial evaporator control temperature, and performing energy-saving and heat dissipation control for the passenger compartment according to the evaporator control temperature; if the vehicle door and window opening time is greater than or equal to the second preset time threshold, turning off the compressor.

[0044] Among them, the initial evaporator control temperature can be the evaporator starting operating temperature set by the air conditioning system. This temperature is the ideal temperature at the outlet of the evaporator in the air conditioning refrigeration cycle, which is used to preliminarily control the cooling effect of the air conditioning. The car door and window state refers to whether any of the vehicle doors, windows and sunroofs is open or closed, which affects the temperature maintenance in the car and the energy consumption of the air conditioning system. The first preset time threshold and the second preset time threshold are two time parameters set by the system to determine how the air conditioning system should respond to maintain energy efficiency and passenger comfort when the car doors and windows are open. The first preset time threshold may indicate the time point when the air conditioning settings are adjusted after the doors and windows are opened; the second preset time threshold may be the time point when more radical energy-saving measures (such as turning off the compressor) are taken after the doors and windows are opened. The car door and window opening time refers to the length of time from the moment the doors and windows are opened to the current time. The compressor is a key component in the air conditioning refrigeration system, which is responsible for compressing the refrigerant to drive the refrigeration cycle. Turning off the compressor means that the air conditioning system will stop refrigeration, thereby saving energy. The evaporator control temperature can be the ideal temperature at the outlet of the evaporator in the air conditioning system, which has a direct impact on the cooling effect. The target circulation position may be a target position set between the internal and external circulation modes of the air conditioning system, which affects the circulation and temperature regulation of the air in the vehicle.

[0045] Specifically, the initial evaporator control temperature and the preset time threshold are first obtained, and the switch status of the car doors and windows is monitored. If the doors and windows are in the open state, the time the doors and windows are opened will be recorded. When this time reaches or exceeds the first preset time threshold but is less than the second preset time threshold, the actual control temperature of the evaporator will be adjusted according to the initial evaporator control temperature, and the energy-saving heat dissipation control of the passenger compartment will be performed according to this adjusted temperature. If the door and window opening time reaches or exceeds the second preset time threshold, more energy-saving measures will be taken, that is, the compressor will be turned off to reduce energy consumption, aiming to intelligently manage the air-conditioning system to adapt to the use of the vehicle, improve energy efficiency, and ensure the comfort of passengers.

[0046] As an example, energy-saving and heat dissipation control of the passenger compartment is performed, including: obtaining the air-conditioning operating condition; when the air-conditioning operating condition is a manual condition, obtaining a first target evaporator temperature according to the evaporator control temperature, the target circulation position and the preset temperature offset value, and performing energy-saving and heat dissipation control of the passenger compartment according to the first target evaporator temperature; when the air-conditioning operating condition is an automatic condition, obtaining a second target evaporator temperature according to the evaporator control temperature and the preset temperature offset value, and performing energy-saving and heat dissipation control of the passenger compartment according to the second target evaporator temperature.

[0047] Among them, the air conditioning operating conditions can be different modes in which the air conditioning system operates according to user settings or automatic control logic, including manual conditions and automatic conditions. Manual conditions can be that the user directly sets parameters such as temperature and wind speed, and the air conditioning system operates according to these set values ​​without automatic adjustment. Automatic conditions can be that the air conditioning system automatically adjusts the operating parameters according to parameters such as the in-car temperature sensor and set temperature to maintain the in-car temperature within the comfortable range set by the user. The preset temperature offset value can be a deviation value from the actual measured temperature set for energy saving or comfort adjustment. The first target evaporator temperature can be the ideal evaporator temperature calculated according to the evaporator control temperature, target circulation position and preset temperature offset value under manual conditions, which is used to guide the energy-saving heat dissipation control of the passenger compartment. The second target evaporator temperature can be the ideal evaporator temperature calculated only according to the evaporator control temperature and the preset temperature offset value under automatic conditions, which is also used to guide the energy-saving heat dissipation control of the passenger compartment. The specific calculation formula for the first target evaporator temperature can be:

[0048] The specific calculation formula for the second target evaporator temperature can be:

[0049] in, is the first target evaporator temperature, To control the temperature of the evaporator, is the target cycle position, Preset temperature offset value for inner loop Preset temperature offset value for external loop.

[0050] Specifically, in manual operation, the user directly controls the temperature and wind speed of the air conditioner. The system calculates the first target evaporator temperature based on the evaporator control temperature set by the user, the target circulation position (i.e., the set ratio of internal and external circulation), and the preset temperature offset value, and then performs energy-saving heat dissipation control of the passenger compartment based on this temperature. In automatic operation, the air conditioning system automatically calculates the second target evaporator temperature based on the evaporator control temperature and the preset temperature offset value, and automatically adjusts the heat dissipation of the passenger compartment accordingly to achieve energy saving and maintain passenger comfort.

[0051] As an example, a first target evaporator temperature is obtained according to the evaporator control temperature, the target circulation position and the preset temperature offset value, and energy-saving heat dissipation control of the passenger compartment is performed according to the first target evaporator temperature, including: obtaining a circulation position table, relative humidity, window temperature and dew point temperature; determining a fogging risk level based on the window temperature and the dew point temperature; querying the circulation position table according to the relative humidity to obtain a corresponding fogging risk level threshold; obtaining a target circulation position when the fogging risk level is less than or equal to the fogging risk level threshold; obtaining a first target evaporator temperature according to the evaporator control temperature, the target circulation position and the preset temperature offset value, and energy-saving heat dissipation control of the passenger compartment is performed according to the first target evaporator temperature.

[0052] Among them, the circulation position table can be a preset data table, which guides the air conditioning system on how to adjust the circulation mode to maintain the comfort and safety of the vehicle interior environment according to the relationship between the internal and external circulation ratio of the air conditioning system and the environmental conditions. Relative humidity can be the ratio of the water vapor content in the air in the vehicle to the maximum water vapor content that the air can accommodate at that temperature, and is one of the important factors affecting whether the vehicle interior is fogged. The window temperature can be the actual temperature of the glass surface inside and outside the vehicle, and together with the dew point temperature (i.e., the temperature at which water vapor in the air condenses into dew drops), it is used to determine the risk of fogging of the vehicle window. The fogging risk level refers to the possibility of fogging of the vehicle window based on the difference between the window temperature and the dew point temperature. The lower the level, the greater the risk of fogging. The fogging risk level threshold is a critical value determined according to the circulation position table and relative humidity, which is used to determine the upper limit of the fogging risk level allowed under the current humidity conditions. When the fogging risk level reaches the exit fogging risk level threshold, the target circulation position is obtained again. The target circulation position refers to the set position of the air conditioning circulation mode determined according to the fogging risk level and the fogging risk level threshold, which is used to adjust the air circulation in the vehicle to prevent the window from fogging. The cycle position table can be shown as Table 2: Table 2 Cycle position table

[0053] Specifically, first obtain the circulation position table, relative humidity, window temperature and dew point temperature data. The difference between the window temperature and the dew point temperature is used to determine the fogging risk level, which reflects the possibility of fog forming on the window glass. Next, the corresponding fogging risk level threshold is searched in the circulation position table according to the relative humidity. This threshold is the maximum allowed fogging risk level. If the current fogging risk level is lower than or equal to this threshold, a target circulation position will be determined, which is the internal and external circulation ratio that the air-conditioning system should set to keep the windows clear. Finally, the first target evaporator temperature is calculated based on the evaporator control temperature, the target circulation position and the preset temperature offset value, and the energy-saving heat dissipation control of the passenger compartment is performed accordingly to ensure passenger comfort while saving energy.

[0054] As an example, a second target evaporator temperature is obtained according to the evaporator control temperature and the preset temperature offset value, and energy-saving heat dissipation control of the passenger compartment is performed according to the second target evaporator temperature, including: obtaining the air volume gear and the current in-vehicle temperature and the in-vehicle temperature offset table; obtaining the second target evaporator temperature according to the evaporator control temperature and the preset temperature offset value; obtaining the target air volume gear according to the air volume gear, and querying the in-vehicle temperature offset table to obtain the in-vehicle temperature offset value; obtaining the target in-vehicle temperature according to the current in-vehicle temperature and the in-vehicle temperature offset value; controlling the compressor speed according to the target in-vehicle temperature, and completing the energy-saving heat dissipation control of the passenger compartment through the target air volume gear and the second target evaporator temperature.

[0055] Among them, the air volume gear can be the wind speed setting of the fan in the air conditioning system, which is usually divided into multiple levels, and the user can select different air volume gears according to needs. The current in-car temperature can be the current temperature of the air in the car measured in real time by the in-car temperature sensor. The in-car temperature offset table can be a preset data table, which provides the deviation value between the in-car target temperature and the actual temperature according to different settings and environmental conditions of the air conditioning system. The target air volume gear can refer to the air volume gear that should be set according to the current air conditioning settings and the in-car environmental conditions, so as to achieve the best in-car temperature control. Under energy-saving control, the air volume gear is reduced by 1 gear to obtain the target air volume gear, and the circulation mode is full internal circulation, then the preset temperature offset value of the internal circulation can be obtained. The in-car temperature offset value can be calculated according to the in-car temperature offset table and the current air conditioning settings, indicating the deviation between the current in-car temperature and the target temperature. The target in-car temperature can be the ideal in-car temperature calculated according to the user's settings, the actual temperature in the car and the environmental conditions, aiming to provide a comfortable riding environment. In order to solve the problem of rapid cooling in the early stage of hot car cooling, the temperature feedback in the car is appropriately reduced in the early stage of hot car cooling. The current temperature in the car can be controlled by setting the temperature offset value in the car to obtain the target temperature in the car, delay the surge in the compressor speed in the rapid cooling stage, thereby saving a certain amount of energy consumption, and offset the current temperature in the car in sections according to the collection time. The specific temperature offset table in the car can be shown in Table 3: Table 3 In-car temperature deviation table

[0056] Specifically, first obtain the current air volume gear and in-car temperature, and refer to the in-car temperature offset table to determine the in-car temperature offset value. Then, combine the evaporator control temperature and the preset temperature offset value to calculate the second target evaporator temperature. Next, determine the target air volume gear according to the air volume gear, and use the in-car temperature offset value to calculate the target in-car temperature. Finally, automatically adjust the compressor speed according to the target in-car temperature, and combine the target air volume gear and the second target evaporator temperature to complete the energy-saving and heat dissipation control of the passenger compartment, so as to ensure passenger comfort while improving energy efficiency, reflecting the air conditioning system's ability to respond to environmental changes and intelligent management of energy consumption in automatic mode.

[0057] This embodiment first obtains the current battery temperature to monitor the thermal state of the battery in real time to ensure that it can respond to temperature changes in a timely manner. If the current battery temperature reaches or exceeds the preset threshold, the passenger compartment electronic expansion valve will be closed to reduce the cooling of the passenger compartment, and the battery electronic expansion valve will be opened to enhance the heat dissipation of the battery, optimize the thermal management of the battery, prevent overheating and protect the battery performance. On the contrary, if the battery temperature is lower than the preset threshold, the passenger compartment electronic expansion valve will be opened to meet the comfort requirements of the passengers, and the battery electronic expansion valve will be closed to reduce the cooling of the battery to save energy and maintain the comfort of the passenger compartment. This embodiment dynamically adjusts the working mode of the air conditioning and thermal management system according to the actual temperature of the battery by intelligently controlling the electronic expansion valves of the passenger compartment and the battery. It not only ensures that the battery is effectively protected from heat dissipation at high temperatures, but also saves energy at low temperatures, while meeting the passengers' comfort requirements for the cabin temperature, achieving the dual goals of battery energy-saving heat dissipation control and passenger compartment energy-saving heat dissipation control, and optimizing the energy efficiency and passenger experience of electric vehicles.

[0058] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the air conditioning energy-saving control method of the present application. More simple transformations based on this technical concept are all within the protection scope of the present application.

[0059] This application also provides an air conditioning energy saving control device, please refer to Figure 5 , the air conditioning energy-saving control device comprises: The acquisition module 10 is used to detect the working status of the evaporator and the battery when acquiring the air conditioning energy-saving control of the air conditioning control panel; The module 20 is completed, and is used for performing air conditioning energy saving control according to the vehicle state if the working state of the evaporator and the battery is normal operation; The exit module 30 is used to exit the air conditioning energy-saving control if the working status of the evaporator and the battery is not in operation.

[0060] The air-conditioning energy-saving control device provided by the present application adopts the air-conditioning energy-saving control method in the above-mentioned embodiment, and can solve the technical problem of how to realize refined energy-saving control of the air-conditioning system. Compared with the prior art, the beneficial effects of the air-conditioning energy-saving control device provided by the present application are the same as the beneficial effects of the air-conditioning energy-saving control method provided by the above-mentioned embodiment, and the other technical features in the air-conditioning energy-saving control device are the same as the features disclosed in the above-mentioned embodiment method, which will not be repeated here.

[0061] The present application provides an air conditioning energy-saving control device, which includes: at least one processor; and a memory that is communicatively connected to the at least one processor; wherein the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the air conditioning energy-saving control method in the above-mentioned embodiment one.

[0062] Reference below Figure 6 , which shows a schematic diagram of the structure of an air-conditioning energy-saving control device suitable for implementing the embodiment of the present application. The air-conditioning energy-saving control device in the embodiment of the present application may include but is not limited to mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 6 The air conditioning energy-saving control device shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0063] like Figure 6 As shown, the air conditioning energy saving control device may include a processing device 1001 (such as a central processing unit, a graphics processor, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM: Read Only Memory) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM: Random Access Memory) 1004. In RAM1004, various programs and data required for the operation of the air conditioning energy saving control device are also stored. The processing device 1001, ROM1002 and RAM1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems can be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD: Liquid Crystal Display), a speaker, a vibrator, etc.; a storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 can allow the air conditioning energy saving control device to communicate with other devices wirelessly or by wire to exchange data. Although the figure shows an air conditioning energy saving control device with various systems, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems can be implemented or provided instead.

[0064] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0065] The air-conditioning energy-saving control device provided by the present application adopts the air-conditioning energy-saving control method in the above embodiment, which can solve the technical problem of how to achieve refined energy-saving control of the air-conditioning system. Compared with the prior art, the beneficial effects of the air-conditioning energy-saving control device provided by the present application are the same as the beneficial effects of the air-conditioning energy-saving control method provided by the above embodiment, and other technical features in the air-conditioning energy-saving control device are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0066] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0067] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0068] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer programs) stored thereon, and the computer-readable program instructions are used to execute the air conditioning energy-saving control method in the above-mentioned embodiment.

[0069] The computer-readable storage medium provided in the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM: Random Access Memory), a read-only memory (ROM: Read Only Memory), an erasable programmable read-only memory (EPROM: Erasable Programmable Read Only Memory or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM: CD-Read Only Memory), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program, which may be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency: Radio Frequency), etc., or any suitable combination of the above.

[0070] The computer-readable storage medium may be included in the air-conditioning energy-saving control device; or may exist independently without being assembled into the air-conditioning energy-saving control device.

[0071] The above-mentioned computer-readable storage medium carries one or more programs. When the above-mentioned one or more programs are executed by the air-conditioning energy-saving control device, the air-conditioning energy-saving control device: when obtaining the air-conditioning energy-saving control of the air-conditioning control panel, detects the working status of the evaporator and the battery; if the working status of the evaporator and the battery is normal operation, performs air-conditioning energy-saving control according to the vehicle status; if the working status of the evaporator and the battery is not operating, exits the air-conditioning energy-saving control.

[0072] Computer program code for performing the operations of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0073] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0074] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0075] The readable storage medium provided in the present application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned air-conditioning energy-saving control method, and can solve the technical problem of how to achieve refined energy-saving control of air-conditioning systems. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in the present application are the same as the beneficial effects of the air-conditioning energy-saving control method provided in the above-mentioned embodiment, and will not be elaborated here.

[0076] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. An air conditioning energy-saving control method, characterized in that: The air conditioning energy-saving control method is applied to an automobile air conditioner, the automobile air conditioner includes an outdoor heat exchanger, a compressor, a four-way valve, a passenger compartment refrigeration circuit and a battery refrigeration circuit, the passenger compartment refrigeration circuit includes a passenger compartment electronic expansion valve and an evaporator, the battery refrigeration circuit includes a battery electronic expansion valve, a water pump, a heat exchanger and a battery, and the method includes: When obtaining the air conditioning energy saving control of the air conditioning control panel, detect the working status of the evaporator and the battery; If the working state of the evaporator and the battery is normal operation, air conditioning energy saving control is performed according to the vehicle state; If the working status of the evaporator and the battery is not in operation, the air conditioning energy-saving control is exited.

2. The method according to claim 1, characterized in that The first end of the four-way valve and the second end of the four-way valve are respectively connected in series with the compressor, the passenger compartment refrigeration circuit and the battery refrigeration circuit are connected in parallel through the third end of the four-way valve and the fourth end of the four-way valve, the passenger compartment electronic expansion valve is connected in series with the evaporator, the battery electronic expansion valve is connected in series with the plate heat exchanger, and the heat exchanger is connected in series with the battery; If the working state of the evaporator and the battery is normal operation, the step of performing air conditioning energy saving control according to the vehicle state includes: Get the current battery temperature; If the current battery temperature is greater than or equal to a preset battery temperature threshold, the passenger compartment electronic expansion valve is closed, and the battery electronic expansion valve is opened to perform battery energy-saving heat dissipation control; If the current battery temperature is lower than the preset battery temperature threshold, the passenger compartment electronic expansion valve is opened, and the battery electronic expansion valve is closed to perform energy-saving and heat dissipation control for the passenger compartment.

3. The method according to claim 2, characterized in that The battery energy-saving and heat dissipation control includes: Get battery control temperature and battery temperature table; querying the battery temperature table according to the current battery temperature to obtain a battery offset temperature, wherein the battery temperature table contains a mapping relationship between the current battery temperature and the battery offset temperature; A target battery temperature is obtained based on the battery control temperature and the battery offset temperature, and battery energy-saving and heat dissipation control is performed according to the target battery temperature.

4. The method according to claim 2, characterized in that The energy-saving and heat dissipation control of the passenger compartment includes: Get the operating conditions of the air conditioner; When the air conditioner operation condition is a manual condition, a first target evaporator temperature is obtained according to the evaporator control temperature, the target circulation position and the preset temperature offset value, and energy-saving heat dissipation control of the passenger compartment is performed according to the first target evaporator temperature; When the air-conditioning operating condition is the automatic condition, a second target evaporator temperature is obtained according to the evaporator control temperature and the preset temperature offset value, and energy-saving heat dissipation control of the passenger compartment is performed according to the second target evaporator temperature.

5. The method according to claim 4, characterized in that The method of obtaining a first target evaporator temperature according to the evaporator control temperature, the target circulation position and the preset temperature offset value, and performing energy-saving heat dissipation control of the passenger compartment according to the first target evaporator temperature includes: Get cycle position table, relative humidity and window temperature and dew point temperature; determining a fogging risk level based on the vehicle window temperature and the dew point temperature; querying the circulation position table according to the relative humidity to obtain a corresponding fogging risk level threshold; When the fogging risk level is less than or equal to the fogging risk level threshold, obtaining a target circulation position; A first target evaporator temperature is obtained according to the evaporator control temperature, the target circulation position and the preset temperature offset value, and energy-saving heat dissipation control of the passenger compartment is performed according to the first target evaporator temperature.

6. The method according to claim 4, characterized in that The method of obtaining a second target evaporator temperature according to the evaporator control temperature and the preset temperature offset value, and performing energy-saving heat dissipation control for the passenger compartment according to the second target evaporator temperature, comprises: Get the air volume position, current in-car temperature, and in-car temperature offset table; Obtaining a second target evaporator temperature according to the evaporator control temperature and the preset temperature offset value; Obtaining a target air volume level according to the air volume level, and querying the in-vehicle temperature offset table to obtain an in-vehicle temperature offset value; Obtaining a target vehicle interior temperature according to the current vehicle interior temperature and the vehicle interior temperature offset value; The compressor speed is controlled according to the target in-vehicle temperature, and energy-saving and heat dissipation control of the passenger compartment is completed through the target air volume gear and the second target evaporator temperature.

7. The method according to claim 2, characterized in that If the current battery temperature is less than the preset battery temperature threshold, the passenger compartment electronic expansion valve is opened, and the battery electronic expansion valve is closed, so as to perform passenger compartment energy-saving and heat dissipation control, the method further includes: Obtaining an initial evaporator control temperature, a state of a vehicle door and window, a first preset time threshold, and a second preset time threshold; If the state of the automobile door and window is open, obtaining the opening time of the automobile door and window; If the vehicle door and window opening time is greater than or equal to the first preset time threshold and less than the second preset time threshold, the evaporator control temperature is obtained according to the initial evaporator control temperature, and energy-saving heat dissipation control of the passenger compartment is performed according to the evaporator control temperature; If the vehicle door and window opening time is greater than or equal to the second preset time threshold, the compressor is turned off.

8. An air conditioning energy-saving control device, characterized in that: The device comprises: An acquisition module, used to detect the working status of the evaporator and the battery when acquiring the air conditioning energy-saving control of the air conditioning control panel; A completion module is used to perform air conditioning energy saving control according to the vehicle state if the working state of the evaporator and the battery is normal operation; The exit module is used to exit the air conditioning energy-saving control if the working status of the evaporator and the battery is not running.

9. A vehicle, characterized in that: The vehicle includes a car air conditioner, and the car air conditioner executes the steps of the air conditioning energy-saving control method according to any one of claims 1 to 7.

10. A storage medium, characterized in that: The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the air conditioning energy-saving control method according to any one of claims 1 to 7 are implemented.

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