An energy-saving mode control method and system for an automobile air conditioning system and a storage medium

Abstract

The application discloses a kind of energy-saving mode control method, system and storage medium of automobile air conditioning system, its method bag, the parameter of vehicle-mounted air conditioner is collected;Judge whether vehicle-mounted air conditioner is in energy-saving mode state;When vehicle-mounted air conditioner is in energy-saving mode state, then judge whether vehicle-mounted air conditioner is in heating mode state;When vehicle-mounted air conditioner is not in heating mode state, calculate the rise of vehicle-mounted air conditioner evaporation temperature and fan air volume value;According to the rise of target evaporation temperature and fan air volume value, calculate final air volume and target temperature;When vehicle-mounted air conditioner is in heating mode state, calculate the fan air volume value of vehicle-mounted air conditioner and PTC outlet target water temperature value;According to the drop of basic air volume and PTC outlet target water temperature, calculate final air volume and target temperature;Target evaporation temperature or PTC outlet target water temperature and fan air volume under energy-saving mode based on algorithm dynamic calculation, real-time adjustment reaches precision control passenger cabin temperature, realize air conditioning system energy saving.

Description

Technical Field

[0001] This invention relates to the field of vehicle air conditioning control technology, and in particular to a method, system and storage medium for controlling the energy-saving mode of an automotive air conditioning system. Background Technology

[0002] With the technological innovation of new energy vehicles, consumers' acceptance of new energy vehicles is constantly increasing; as an essential part of automobiles, the energy efficiency of air conditioning is particularly important for the range of new energy vehicles; the energy consumption of air conditioning is a major concern for customers regarding the range of new energy vehicles, and vehicle energy-saving technology has become a core performance that major new energy vehicle manufacturers are focusing on developing.

[0003] Currently, the air conditioning system of new energy vehicles accounts for more than 15% of the total energy consumption of the vehicle. The high proportion of energy consumption in the air conditioning system and the inability to finely control the comfort of the vehicle's passenger cabin have a significant impact on the vehicle's range, reducing the range by 10km per 100km. This seriously affects the range of new energy vehicles. There is an urgent need for an energy-saving control method for automotive air conditioning to solve the problem of high energy consumption in the air conditioning of new energy vehicles. To this end, this invention provides an energy-saving mode control method, system and storage medium for automotive air conditioning systems. The trade-off balanced air conditioning energy-saving mode can provide customers with multiple choices, effectively improving the range while ensuring the thermal comfort of the passenger cabin. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a method, system, and storage medium for controlling the energy-saving mode of an automotive air conditioning system.

[0005] A method for controlling the energy-saving mode of an automotive air conditioning system according to a first aspect of the present invention includes: When the vehicle air conditioner is turned on, the vehicle air conditioner control module (ACM) collects the parameters of the vehicle air conditioner. Determine if the vehicle air conditioner is in energy-saving mode; if the vehicle air conditioner is not in energy-saving mode, the vehicle air conditioner control module (ACM) controls the vehicle air conditioner to enter normal mode; if the vehicle air conditioner is in energy-saving mode, determine if the vehicle air conditioner is in heating mode. When the vehicle air conditioner is not in heating mode, the vehicle air conditioner control module (ACM) calculates the increase in the vehicle air conditioner evaporation temperature according to the control map, and calculates the fan air volume value of the vehicle air conditioner in energy-saving mode; the vehicle air conditioner control module (ACM) calculates the final air volume and target temperature based on the increase in the target evaporation temperature and the fan air volume value. When the vehicle air conditioner is in heating mode, the vehicle air conditioner control module (ACM) calculates the fan air volume value of the vehicle air conditioner in energy-saving mode according to the control map, and calculates the target water temperature value of the vehicle air conditioner PTC outlet; the vehicle air conditioner control module (ACM) calculates the final air volume and target temperature based on the basic air volume and the decrease in the target water temperature at the PTC outlet.

[0006] According to a method for controlling the energy-saving mode of an automotive air conditioning system based on the present invention, when the automatic air conditioning system control button of the vehicle air conditioning is pressed, the air conditioning control module (ACM) of the vehicle air conditioning obtains the current operating status of the vehicle air conditioning and collects relevant temperature and airflow parameters of the vehicle air conditioning through temperature sensors and air outlet airflow speed sensors installed inside the vehicle air conditioning. When the non-energy-saving mode control button is pressed, the vehicle air conditioning automatically enters the Normal automatic control mode through the vehicle air conditioning control module (ACM). When the energy-saving mode control button is pressed, the air conditioning control module (ACM) determines whether the system is in heating mode according to the automatic air conditioning algorithm. If the air conditioning is in non-heating mode, the vehicle air conditioning control module (ACM) calculates the final evaporation temperature rise value of the vehicle air conditioning based on the ambient temperature and the corrected internal temperature of each temperature zone. At the same time, the vehicle air conditioning control module (ACM) calculates the output fan airflow value based on the ambient temperature and the corrected internal temperature of each temperature zone. The vehicle air conditioning control module (ACM) calculates the final evaporation temperature rise value of the vehicle air conditioning based on the calculated final evaporation temperature rise value. The system outputs corresponding values ​​for the final evaporation temperature rise and fan airflow, and feeds them back to the vehicle air conditioning control module (ACM) to execute corresponding instructions, thereby achieving energy-saving effects for the vehicle air conditioning system. If the air conditioning is in heating mode, the ACM calculates the fan airflow value based on the ambient temperature and the corrected internal temperature of each temperature zone. Simultaneously, the ACM calculates the final target PTC outlet water temperature value based on the ambient temperature and the corrected internal temperature of each temperature zone. The ACM then feeds back the calculated fan airflow value and the final target PTC outlet water temperature value to the vehicle air conditioning control module (ACM) to execute corresponding instructions, thereby achieving energy-saving effects for the vehicle air conditioning system. Through the above execution operations and the control of the ACM, the vehicle air conditioning control module (ACM) dynamically calculates the target evaporation temperature or PTC outlet water temperature and fan airflow under the energy-saving mode based on the algorithm, and adjusts in real time to accurately control the passenger compartment temperature, achieving energy saving of the air conditioning system.

[0007] According to some embodiments of the present invention, the parameters include at least the air conditioning status of the vehicle air conditioner, the target evaporation temperature, the target PTC outlet water temperature, the basic air volume in non-energy-saving mode, the target evaporation temperature in non-energy-saving mode, the target PTC outlet water temperature in non-energy-saving mode, the ambient temperature, and the corrected internal temperature of each temperature zone. All data collected during the operation of the air conditioner are transmitted to the vehicle air conditioning control module (ACM) via temperature and speed sensors, and then processed by the vehicle air conditioning control module (ACM) and displayed on the vehicle display device.

[0008] According to some embodiments of the present invention, the vehicle air conditioning system calculates the increase in the vehicle air conditioning evaporator temperature based on a control map, specifically, The vehicle air conditioning control module (ACM) calculates the rise in the target evaporation temperature of the vehicle air conditioning in non-energy-saving mode based on the ambient temperature and the average internal temperature of each temperature zone. Then, it calculates the final rise in the evaporation temperature of the vehicle air conditioning through the algorithm MIN{((target evaporation temperature in non-energy-saving mode) + (the rise in target evaporation temperature)), 10}. When the vehicle air conditioner is in non-heating mode, the maximum value for the increase in evaporation temperature is set to 10. Then, the vehicle air conditioner control module (ACM) calculates the target evaporation temperature increase in non-energy-saving mode based on the ambient temperature and the average internal temperature of each temperature zone. The calculated target evaporation temperature increase is added to the total value of the collected non-energy-saving mode target evaporation temperature, and compared with the set maximum value of 10. The smaller value is output as the evaporation temperature increase. That is, if the calculated target evaporation temperature increase plus the total non-energy-saving mode target evaporation temperature is less than 10, the calculated total value is output. If the calculated target evaporation temperature increase plus the total non-energy-saving mode target evaporation temperature is greater than 10, 10 is output as the evaporation temperature increase of the vehicle air conditioner, thus controlling the evaporation temperature increase of the vehicle air conditioner to always be less than or equal to 10.

[0009] According to some embodiments of the present invention, the calculation of the fan air volume value of the vehicle air conditioner in the energy-saving mode state is specifically as follows: The vehicle air conditioning control module (ACM) calculates the first target airflow reduction based on the ambient temperature and the average internal temperature of each temperature zone, and then calculates the fan airflow value using the algorithm MAX{((non-energy-saving mode base airflow) - (first target airflow reduction), 25}. When the vehicle air conditioner is in non-heating mode, the minimum value of the vehicle air conditioner fan airflow is set to 25. Then, the vehicle air conditioner control module (ACM) calculates the first target airflow reduction based on the ambient temperature and the average internal temperature of each temperature zone. The total value after subtracting the calculated first target airflow reduction from the collected non-energy-saving mode base airflow is compared with the set minimum value of 25, and the larger value is output as the fan airflow value. That is, if the total value after subtracting the calculated first target airflow reduction from the non-energy-saving mode base airflow is greater than 25, the calculated total value is output as the fan airflow value; if the total value after subtracting the calculated first target airflow reduction from the non-energy-saving mode base airflow is less than 25, 25 is output as the fan airflow value, thereby controlling the vehicle air conditioner fan airflow value to always be greater than or equal to 25.

[0010] According to some embodiments of the present invention, the vehicle air conditioning system calculates the fan air volume value of the vehicle air conditioner in energy-saving mode based on the control map, specifically, The vehicle air conditioning control module (ACM) calculates the second target air volume reduction based on the ambient temperature and the average internal temperature of each temperature zone, and then calculates the fan air volume value through the algorithm MAX{((non-energy-saving mode basic air volume) + (second target air volume reduction)), 15}. When the vehicle air conditioner is in heating mode, the minimum value of the vehicle air conditioner fan airflow is set to 15. Then, the vehicle air conditioner control module (ACM) calculates the second target airflow reduction based on the ambient temperature and the average internal temperature of each temperature zone. The total value obtained by subtracting the calculated second target airflow reduction from the collected non-energy-saving mode base airflow is compared with the set minimum value of 15, and the larger value is output as the fan airflow value. That is, if the total value of the non-energy-saving mode base airflow minus the calculated second target airflow reduction is greater than 15, the calculated total value is output as the fan airflow value; if the total value of the non-energy-saving mode base airflow minus the calculated second target airflow reduction is less than 15, 15 is output as the fan airflow value, thereby controlling the vehicle air conditioner fan airflow value to always be greater than or equal to 15.

[0011] According to some embodiments of the present invention, the calculation of the target water temperature value at the PTC outlet of the vehicle air conditioner specifically involves, The vehicle air conditioning control module (ACM) calculates the drop in target PTC outlet water temperature based on the ambient temperature and the average internal temperature of each temperature zone, and then calculates the target PTC outlet water temperature value of the vehicle air conditioning system using the algorithm MAX{((target PTC outlet water temperature in non-energy-saving mode) + (drop in target PTC outlet water temperature)), 25}. When the vehicle air conditioner is in non-heating mode, the minimum target water temperature at the PTC outlet is set to 25°C. The vehicle air conditioning control module (ACM) then calculates the drop in the target water temperature at the PTC outlet based on the ambient temperature and the average internal temperature within each temperature zone. The total value, obtained by adding the calculated drop to the non-energy-saving mode PTC outlet target water temperature collected by the vehicle air conditioner, is compared with the set minimum value. The larger value is output as the target water temperature at the vehicle air conditioner's PTC outlet. In other words, the non-energy-saving mode PTC outlet target water temperature collected by the vehicle air conditioner is the target water temperature value. If the total value of the target water temperature at the TC outlet plus the calculated drop in the target water temperature at the PTC outlet is less than 25, then 25 is output as the target water temperature at the PTC outlet. If the total value of the target water temperature at the PTC outlet in non-energy-saving mode collected by the vehicle air conditioner plus the calculated drop in the target water temperature at the PTC outlet is greater than 25, then the total value of the target water temperature at the PTC outlet in non-energy-saving mode collected by the vehicle air conditioner plus the calculated drop in the target water temperature at the PTC outlet is output as the target water temperature at the PTC outlet, thereby controlling the target water temperature at the PTC outlet of the vehicle air conditioner to always be greater than or equal to 25.

[0012] According to some embodiments of the present invention, the determination of whether the vehicle air conditioner is in heating mode is specifically made by the air conditioning control module (ACM) based on the automatic air conditioning algorithm. Specifically, the determination is made by the real-time temperature and airflow of the air conditioner. If the temperature and airflow exceed the set values, it is determined to be in heating mode; otherwise, it is determined to be in non-heating mode.

[0013] An energy-saving mode control system for an automotive air conditioning system according to a second aspect of the present invention includes: Data acquisition module: The data acquisition module is used to collect the operating status of the vehicle air conditioner, target evaporation temperature, PTC outlet target water temperature, basic air volume in non-energy-saving mode, target evaporation temperature in non-energy-saving mode, target PTC outlet water temperature in non-energy-saving mode, ambient temperature, and corrected internal temperature of each temperature zone. Intelligent control module: Used to control the operating status, operating power, operating temperature and fan air volume of the vehicle air conditioner, receive data and feedback from other modules and issue corresponding instructions; Data processing module: Based on the air conditioning data collected by the data acquisition module, the ambient temperature, and the air conditioning operation instructions issued by the intelligent control module, calculates the operating temperature and air volume of the air conditioner in energy-saving mode, and sends the calculation results to the data feedback module; Data feedback module: Receives data from the data processing module and sends relevant feedback results to the intelligent control module based on the received data; Data storage module: Used to store the air conditioner's energy-saving mode status under the current ambient temperature, and to provide corresponding energy-saving data reference to the intelligent control module under the same ambient temperature.

[0014] According to a vehicle air conditioning system energy-saving mode control system of the present invention, the system first collects data in real time from the air conditioner's operating status, target evaporation temperature, PTC outlet target water temperature, non-energy-saving mode basic air volume, non-energy-saving mode target evaporation temperature, non-energy-saving mode PTC outlet target water temperature, ambient temperature, and corrected internal temperature of each temperature zone through a data acquisition module. The data collected by the data acquisition module is then sent to an intelligent control module. The intelligent control module, based on the received data and its internally set algorithm, determines whether the vehicle air conditioner is in energy-saving mode. If the vehicle air conditioner is not in energy-saving mode, the intelligent control module sends a command to the air conditioner to enter normal mode. If the air conditioner is in energy-saving mode, the intelligent control module determines whether the vehicle air conditioner is in heating mode based on its internal algorithm. If the vehicle air conditioner is in heating mode, the intelligent control module calls relevant algorithm programs based on the energy-saving parameters of the heating mode to ensure that the front-end vehicle air conditioner is always in energy-saving mode during heating. When the vehicle's air conditioning is not in heating mode, the intelligent control module calls relevant algorithms based on the energy-saving parameters for non-heating mode, ensuring that the vehicle's air conditioning remains in energy-saving mode. The data processing module stores the relevant algorithms to be called by the intelligent processing module. Based on the air conditioning data collected by the data acquisition module, the ambient temperature, and the air conditioning operation commands issued by the intelligent control module, it calculates the operating temperature and airflow in energy-saving mode and sends the calculation results to the data feedback module. The data feedback module receives the data from the data processing module and sends relevant feedback results to the intelligent control module. The intelligent control module compares and corrects the feedback results with its own operating data to ensure that the vehicle's air conditioning is in energy-saving mode. All the above operating results and data are stored in the data storage module: storing the air conditioning energy-saving mode status at the current ambient temperature, and providing corresponding energy-saving data references to the intelligent control module under the same ambient temperature, making the system more intelligent.

[0015] According to some embodiments of the present invention, the data acquisition module is equipped with a miniature temperature sensor, a miniature humidity sensor, and a speed sensor, which accurately acquire the required parameters.

[0016] According to a third aspect of the present invention, a storage medium stores an energy-saving mode control program for an automotive air conditioning system. When the energy-saving mode control program for an automotive air conditioning system is processed and executed, it can implement an energy-saving mode control method for an automotive air conditioning system according to a first aspect of the present invention and an energy-saving mode control system for an automotive air conditioning system according to a second aspect of the present invention.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a flowchart of an energy-saving mode control method for an automotive air conditioning system according to an embodiment of the present invention. Detailed Implementation

[0020] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0021] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] Example 1 See Figure 1 As shown, a method for controlling the energy-saving mode of an automotive air conditioning system includes: Step S100: When the vehicle air conditioner is turned on, the vehicle air conditioner control module (ACM) collects the parameters of the vehicle air conditioner. Furthermore, the parameters include at least the air conditioning status of the vehicle air conditioner, the target evaporation temperature, the target water temperature at the PTC outlet, the basic air volume in non-energy-saving mode, the target evaporation temperature in non-energy-saving mode, the target water temperature at the PTC outlet in non-energy-saving mode, the ambient temperature, and the corrected internal temperature of each temperature zone. It should be noted that the above parameters are collected through temperature sensors and wind speed sensors installed inside the vehicle air conditioner, and transmitted to the vehicle air conditioner through the vehicle air conditioner control module (ACM) connected to the sensors. Step S200: Determine whether the vehicle air conditioner is in energy-saving mode; if the vehicle air conditioner is in energy-saving mode, proceed to step S210; if the vehicle air conditioner is in non-energy-saving mode, proceed to step S220. It should be noted that the vehicle air conditioning control module (ACM) identifies whether the vehicle air conditioning is in energy-saving mode based on whether the user presses the energy-saving mode button or the non-energy-saving mode button. Step S210: Determine whether the vehicle air conditioner is in heating mode. If it is in non-heating mode, proceed to step S211; if it is in heating mode, proceed to step S212. It should be noted that the heating mode is determined by the air conditioning control module (ACM) based on the automatic air conditioning algorithm. Specifically, it is determined by the real-time temperature and airflow of the air conditioner. If the temperature and airflow exceed the set values, it is determined to be in heating mode; otherwise, it is determined to be in non-heating mode. Step S220: The vehicle air conditioning control module (ACM) controls the vehicle air conditioning to enter Normal mode; Step S211: The vehicle air conditioning control module (ACM) calculates the increase in the vehicle air conditioning evaporation temperature and the fan air volume value of the vehicle air conditioning in energy-saving mode according to the control map, and calculates the final air volume and target temperature based on the increase in the target evaporation temperature and the fan air volume value. Furthermore, the calculation process for the rise in air conditioning evaporation temperature is as follows: The vehicle air conditioning control module (ACM) calculates the rise in the target evaporation temperature of the vehicle air conditioning in non-energy-saving mode based on the ambient temperature and the average internal temperature of each temperature zone, and then calculates the final rise in the vehicle air conditioning evaporation temperature using the algorithm MIN{((target evaporation temperature in non-energy-saving mode) + (the rise in target evaporation temperature)), 10}. It should be noted that by setting the maximum value of the rise in vehicle air conditioning evaporation temperature to 10, the vehicle air conditioning control module (ACM) calculates the target rise in evaporation temperature in non-energy-saving mode based on the ambient temperature and the average internal temperature of each temperature zone. The calculated target rise in evaporation temperature is then added to the total value of the collected non-energy-saving mode target evaporation temperature, and compared with the set maximum value of 10. The smaller value is output as the rise in evaporation temperature. That is, if the calculated target rise in evaporation temperature plus the total value of the non-energy-saving mode target evaporation temperature is less than 10, the calculated total value is output. If the calculated target rise in evaporation temperature plus the total value of the non-energy-saving mode target evaporation temperature is greater than 10, then 10 is output as the rise in vehicle air conditioning evaporation temperature, thereby controlling the rise in vehicle air conditioning evaporation temperature to always be less than or equal to 10. For example, as shown in Table (I), when the ambient temperature is 20℃ and the average internal temperature of each temperature zone is 25℃, the rise in the target evaporation temperature of the air conditioner is 5℃. Other cases are shown in Table (I) and will not be elaborated here. Table (1): Target Evaporation Temperature Rise Furthermore, the above-mentioned fan air volume value is calculated as follows: the vehicle air conditioning control module (ACM) controls the map to calculate the first target air volume reduction based on the ambient temperature and the average internal temperature of each temperature zone, and then calculates the fan air volume value through the algorithm MAX{((non-energy-saving mode basic air volume) - (first target air volume reduction), 25}. It should be noted that by setting the minimum value of the vehicle air conditioner fan airflow to 25, the vehicle air conditioner control module (ACM) calculates the first target airflow reduction based on the ambient temperature and the average internal temperature of each temperature zone. The total value obtained by subtracting the calculated first target airflow reduction from the collected non-energy-saving mode base airflow is compared with the set minimum value of 25, and the larger value is output as the fan airflow value. That is, if the total value of the non-energy-saving mode base airflow minus the calculated first target airflow reduction is greater than 25, the calculated total value is output as the fan airflow value; if the total value of the non-energy-saving mode base airflow minus the calculated first target airflow reduction is less than 25, 25 is output as the fan airflow value, thereby controlling the vehicle air conditioner fan airflow value to always be greater than or equal to 25. For example, as shown in Table (II), when the ambient temperature is 20℃ and the average internal temperature of each temperature zone is 25℃, the first target airflow reduction of the vehicle air conditioner is 14. Other cases are shown in Table (II), and will not be elaborated here.

[0024] Table (II): First Target Airflow Reduction Step S212: The vehicle air conditioning control module (ACM) calculates the fan air volume value of the vehicle air conditioning in energy-saving mode according to the control map, calculates the target water temperature value of the vehicle air conditioning PTC outlet, and calculates the final air volume and target temperature based on the fan air volume value and the decrease in the target water temperature at the PTC outlet. Furthermore, the vehicle air conditioning control module (ACM) calculates the second target airflow reduction based on the ambient temperature and the average internal temperature of each temperature zone, and then calculates the fan airflow value using the algorithm MAX{((non-energy-saving mode basic airflow) + (second target airflow reduction)), 15}. It should be noted that by setting the minimum value of the vehicle air conditioner fan airflow to 15, the vehicle air conditioner control module (ACM) calculates the second target airflow reduction based on the ambient temperature and the average internal temperature of each temperature zone. The total value obtained by subtracting the calculated second target airflow reduction from the collected non-energy-saving mode base airflow is compared with the set minimum value of 15, and the larger value is output as the fan airflow value. That is, if the total value of the non-energy-saving mode base airflow minus the calculated second target airflow reduction is greater than 15, the calculated total value is output as the fan airflow value; if the total value of the non-energy-saving mode base airflow minus the calculated second target airflow reduction is less than 15, 15 is output as the fan airflow value, thereby controlling the vehicle air conditioner fan airflow value to always be greater than or equal to 15. For example, as shown in Table (III), when the ambient temperature is -7℃ and the average internal temperature of each temperature zone is 0℃, the second target airflow reduction of the vehicle air conditioner is 8. Other cases are shown in Table (III), which will not be elaborated here.

[0025] Table (III): Second Target Airflow Reduction Furthermore, the vehicle air conditioning control module (ACM) calculates the drop in target PTC outlet water temperature based on the ambient temperature and the average internal temperature of each temperature zone, and then calculates the target PTC outlet water temperature value of the vehicle air conditioning system using the algorithm MAX{((target PTC outlet water temperature in non-energy-saving mode) + (drop in target PTC outlet water temperature)), 25}. It should be noted that by setting the minimum target coolant temperature at the PTC outlet of the vehicle air conditioning system to 25°C, the vehicle air conditioning control module (ACM) calculates the drop in the target coolant temperature at the PTC outlet based on the ambient temperature and the average internal temperature of each temperature zone. The total value, obtained by adding the calculated drop in the non-energy-saving mode PTC outlet target coolant temperature collected by the vehicle air conditioning system, is compared with the set minimum value. The larger value is output as the target coolant temperature at the vehicle air conditioning PTC outlet. That is, if the total value of the non-energy-saving mode PTC outlet target coolant temperature collected by the vehicle air conditioning system plus the calculated drop in the PTC outlet target coolant temperature is less than 25°C, then the target coolant temperature is output as 25°C. 25 represents the target PTC outlet water temperature. If the total value of the non-energy-saving mode PTC outlet target water temperature collected by the vehicle air conditioner plus the calculated PTC outlet target water temperature drop is greater than 25, then the total value of the non-energy-saving mode PTC outlet target water temperature collected by the vehicle air conditioner plus the calculated PTC outlet target water temperature drop will be output as the PTC outlet target water temperature value, thereby controlling the vehicle air conditioner PTC outlet target water temperature value to always be greater than or equal to 25. For example, as shown in Table (IV), when the ambient temperature is -7℃ and the average internal temperature of each temperature zone is 0℃, the vehicle air conditioner PTC outlet target water temperature drop is 1. Other cases are shown in Table (IV), and will not be elaborated here.

[0026] Table (IV): Target Temperature Drop at PTC Outlet Based on the above steps, when the user presses the automatic air conditioning system control button of the vehicle air conditioner, the air conditioning control module (ACM) of the vehicle air conditioner obtains the current operating status of the vehicle air conditioner and collects relevant temperature and airflow parameters through the temperature sensor and airflow speed sensor installed inside the vehicle air conditioner. When the non-energy-saving mode control button is pressed, the vehicle air conditioner automatically enters the Normal automatic control mode through the vehicle air conditioning control module (ACM). When the energy-saving mode control button is pressed, the air conditioning control module (ACM) determines whether the system is in heating mode according to the automatic air conditioning algorithm. If the air conditioner is in non-heating mode, the vehicle air conditioning control module (ACM) calculates the final evaporation temperature rise value of the vehicle air conditioner based on the ambient temperature and the internal temperature correction of each temperature zone using MIN{((non-energy-saving mode target evaporation temperature) + (target evaporation temperature rise)), 10}. At the same time, the vehicle air conditioning control module (ACM) calculates the final evaporation temperature rise value of the vehicle air conditioner based on the ambient temperature and the internal temperature correction of each temperature zone using MAX{((non-energy-saving mode base airflow) - (First target airflow reduction), 25} calculates the output fan airflow value; the vehicle air conditioning control module ACM outputs the corresponding value based on the calculated final evaporation temperature rise and fan airflow value, and feeds it back to the vehicle air conditioning control module ACM to execute the corresponding instructions, so that the vehicle air conditioning achieves energy saving effect; if the air conditioning is in heating mode, the vehicle air conditioning control module ACM calculates the fan airflow value of the vehicle air conditioning based on the ambient temperature and the internal temperature correction of each temperature zone through MAX{((non-energy saving mode base airflow) + (second target airflow reduction)), 15}. At the same time, the vehicle air conditioning control module ACM calculates the final PTC outlet water temperature target value based on the ambient temperature and the internal temperature correction of each temperature zone through MAX{((non-energy saving mode PTC outlet target water temperature) + (PTC outlet target water temperature reduction)), 25}; The vehicle air conditioning control module (ACM) calculates the fan airflow and the final target PTC outlet water temperature, and feeds this information back to the vehicle air conditioning control module (ACM) to execute corresponding instructions, thereby achieving energy-saving effects for the vehicle air conditioning system. Through the above-mentioned execution operations and the control of the vehicle air conditioning control module (ACM), in the non-heating mode of energy-saving mode, the rise in evaporation temperature is always less than or equal to 10°C, and the fan airflow is always greater than or equal to 25°C. In the non-heating mode of energy-saving mode, the fan airflow is always greater than or equal to 15°C, and the target PTC outlet water temperature is always greater than or equal to 25°C. Based on the algorithm-dynamically calculated target evaporation temperature or target PTC outlet water temperature and fan airflow in energy-saving mode, the vehicle air conditioning control module (ACM) adjusts in real time to precisely control the passenger cabin temperature, thereby achieving energy saving in the air conditioning system.

[0027] Example 2 An energy-saving mode control system for an automotive air conditioning system, comprising: Data Acquisition Module: The data acquisition module is used to collect the operating status of the vehicle air conditioner, target evaporation temperature, PTC outlet target water temperature, basic air volume in non-energy-saving mode, target evaporation temperature in non-energy-saving mode, target PTC outlet water temperature in non-energy-saving mode, ambient temperature, and corrected internal temperature of each temperature zone. Intelligent control module: Used to control the operating status, operating power, operating temperature and fan air volume of the vehicle air conditioner, receive data and feedback from other modules and issue corresponding instructions; Data processing module: Based on the air conditioning data collected by the data acquisition module, the ambient temperature, and the air conditioning operation instructions issued by the intelligent control module, calculates the operating temperature and air volume of the air conditioner in energy-saving mode, and sends the calculation results to the data feedback module; Data feedback module: Receives data from the data processing module and sends relevant feedback results to the intelligent control module based on the received data; Data storage module: Used to store the air conditioner's energy-saving mode status under the current ambient temperature, and to provide corresponding energy-saving data reference to the intelligent control module under the same ambient temperature.

[0028] Based on the above system, the data acquisition module first collects real-time data on the vehicle air conditioner's operating status, target evaporation temperature, PTC outlet target water temperature, basic airflow in non-energy-saving mode, target evaporation temperature in non-energy-saving mode, target PTC outlet target water temperature in non-energy-saving mode, ambient temperature, and corrected internal temperatures for each temperature zone. The data collected by the data acquisition module is then sent to the intelligent control module. The intelligent control module, based on the received data and its internally set algorithm, determines whether the vehicle air conditioner is in energy-saving mode. If the vehicle air conditioner is not in energy-saving mode, the intelligent control module sends a command to the air conditioner to enter normal mode. If the air conditioner is in energy-saving mode, the intelligent control module uses its internal algorithm to determine whether the vehicle air conditioner is in heating mode. If the vehicle air conditioner is in heating mode, the intelligent control module calls relevant algorithm programs based on the energy-saving parameters of the heating mode to ensure that the vehicle air conditioner remains in energy-saving mode during heating. If the vehicle air conditioner is not in heating mode... In the non-heating mode, the intelligent control module calls relevant algorithms based on the energy-saving parameters to ensure the vehicle's air conditioning is always in energy-saving mode. The data processing module stores the algorithms called by the intelligent processing module. Based on the air conditioning data collected by the data acquisition module, the ambient temperature, and the air conditioning operation commands issued by the intelligent control module, it calculates the operating temperature and airflow in the energy-saving mode and sends the calculation results to the data feedback module. The data feedback module receives the data from the data processing module and sends the relevant feedback results to the intelligent control module. The intelligent control module compares and corrects the feedback results with its own operating data to ensure the vehicle's air conditioning is in energy-saving mode. All the above operating results and data are stored in the data storage module: storing the air conditioning energy-saving mode status at the current ambient temperature, and providing the intelligent control module with corresponding energy-saving data references at the same ambient temperature, making the system more intelligent.

[0029] Example 3 A storage medium storing an energy-saving mode control program for an automotive air conditioning system, wherein when the energy-saving mode control program is processed and executed, it can implement an energy-saving mode control method for an automotive air conditioning system according to Embodiment 1 and an energy-saving mode control system for an automotive air conditioning system according to Embodiment 2.

[0030] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0031] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0032] Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The reference to "embodiment" herein means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily indicate the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0033] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A method for controlling the energy-saving mode of an automotive air conditioning system, characterized in that, include: When the vehicle air conditioner is turned on, the vehicle air conditioner control module (ACM) collects the parameters of the vehicle air conditioner. Determine if the vehicle's air conditioning is in energy-saving mode; When the vehicle air conditioner is not in energy-saving mode, the vehicle air conditioner control module (ACM) controls the vehicle air conditioner to enter normal mode; when the vehicle air conditioner is in energy-saving mode, it determines whether the vehicle air conditioner is in heating mode. When the vehicle air conditioner is not in heating mode, the vehicle air conditioner control module (ACM) calculates the rise in the vehicle air conditioner evaporation temperature according to the control map, and calculates the fan air volume value of the vehicle air conditioner in energy-saving mode. The vehicle air conditioning control module (ACM) calculates the final air volume and target temperature based on the increase in the target evaporation temperature and the fan air volume value. When the vehicle air conditioner is in heating mode, the vehicle air conditioner control module (ACM) calculates the fan air volume value of the vehicle air conditioner in energy-saving mode according to the control map, and calculates the target water temperature value of the vehicle air conditioner PTC outlet. The vehicle air conditioning control module (ACM) calculates the final air volume and target temperature based on the basic air volume and the drop in the target water temperature at the PTC outlet. The parameters include at least the air conditioning status of the vehicle air conditioner, the target evaporation temperature, the target PTC outlet water temperature, the basic air volume in non-energy-saving mode, the target evaporation temperature in non-energy-saving mode, the target PTC outlet water temperature in non-energy-saving mode, the ambient temperature, and the corrected internal temperature of each temperature zone.

2. The energy-saving mode control method for an automotive air conditioning system according to claim 1, characterized in that, The vehicle air conditioning control module (ACM) calculates the increase in the vehicle air conditioning evaporator temperature based on the control map. Specifically, The vehicle air conditioning control module (ACM) calculates the increase in the target evaporation temperature of the vehicle air conditioning in non-energy-saving mode based on the ambient temperature and the average internal temperature of each temperature zone. Then, it calculates the final increase in the evaporation temperature of the vehicle air conditioning using the algorithm MIN{((target evaporation temperature in non-energy-saving mode)+(the increase in target evaporation temperature)),10}.

3. The energy-saving mode control method for an automotive air conditioning system according to claim 1, characterized in that, When the vehicle's air conditioning is not in heating mode, the calculated fan airflow value for the vehicle's air conditioning in energy-saving mode is specifically as follows: The vehicle air conditioning control module (ACM) calculates the first target airflow reduction based on the ambient temperature and the average internal temperature of each temperature zone, and then calculates the fan airflow value using the algorithm MAX{((base airflow in non-energy-saving mode)-(first target airflow reduction)),25}.

4. The energy-saving mode control method for an automotive air conditioning system according to claim 1, characterized in that, When the vehicle air conditioner is in heating mode, the vehicle air conditioner control module (ACM) calculates the fan airflow value of the vehicle air conditioner in energy-saving mode according to the control map. Specifically, The vehicle air conditioning control module (ACM) calculates the second target airflow reduction based on the ambient temperature and the average internal temperature of each temperature zone, and then calculates the fan airflow value using the algorithm MAX{((base airflow in non-energy-saving mode)+(second target airflow reduction)),15}.

5. The energy-saving mode control method for an automotive air conditioning system according to claim 1, characterized in that, The calculation of the target water temperature value at the PTC outlet of the vehicle air conditioner specifically involves... The vehicle air conditioning control module (ACM) calculates the target water temperature drop at the PTC outlet based on the ambient temperature and the average internal temperature of each temperature zone, and then calculates the target water temperature value at the vehicle air conditioning PTC outlet using the algorithm MAX{((target water temperature at the PTC outlet in non-energy-saving mode)+(target water temperature drop at the PTC outlet)),25}.

6. The energy-saving mode control method for an automotive air conditioning system according to claim 1, characterized in that, The determination of whether the vehicle air conditioner is in heating mode is specifically made by the vehicle air conditioning control module (ACM) using an automatic air conditioning algorithm to determine whether the system is in heating mode.

7. An energy-saving mode control system for an automotive air conditioning system, characterized in that, The energy-saving mode control system for an automotive air conditioning system applies the energy-saving mode control method for an automotive air conditioning system as described in any one of claims 1-6; The energy-saving mode control system for the automotive air conditioning system includes, Data acquisition module: The data acquisition module is used to collect the operating status of the vehicle air conditioner, target evaporation temperature, PTC outlet target water temperature, basic air volume in non-energy-saving mode, target evaporation temperature in non-energy-saving mode, target PTC outlet water temperature in non-energy-saving mode, ambient temperature, and corrected internal temperature of each temperature zone. Intelligent control module: Used to control the operating status, operating power, operating temperature and fan air volume of the vehicle air conditioner, receive data and feedback from other modules and issue corresponding instructions; Data processing module: Based on the air conditioning data collected by the data acquisition module, the ambient temperature, and the air conditioning operation instructions issued by the intelligent control module, calculates the operating temperature and air volume of the air conditioner in energy-saving mode, and sends the calculation results to the data feedback module; Data feedback module: Receives data from the data processing module and sends relevant feedback results to the intelligent control module based on the received data; Data storage module: Used to store the air conditioner's energy-saving mode status under the current ambient temperature, and to provide corresponding energy-saving data reference to the intelligent control module under the same ambient temperature.

8. The energy-saving mode control system for an automotive air conditioning system according to claim 7, characterized in that, The data acquisition module is equipped with a miniature temperature sensor, a miniature humidity sensor, and a speed sensor.

9. A storage medium, characterized in that, The storage medium stores an energy-saving mode control program for an automotive air conditioning system. When the energy-saving mode control program for an automotive air conditioning system is executed by a processor, it implements an energy-saving mode control method for an automotive air conditioning system as described in any one of claims 1 to 6.

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