Air conditioning refrigeration control method and system of hybrid electric vehicle in ECO mode

Abstract

The application discloses an air conditioner refrigeration control method in an ECO mode of a hybrid electric vehicle and relates to the technical field of air conditioner refrigeration control, which comprises the following steps: collecting real-time parameters in the vehicle and judging a driving mode; when the system detects that the driving mode is the ECO mode, the air conditioner refrigeration control is performed according to the vehicle state and the refrigeration demand of the driver, and the refrigeration demand is sent to the air conditioner controller; and when the air conditioner controller receives the system refrigeration demand request, the compressor is controlled to perform refrigeration work according to the electric compressor power limit value, so as to meet the system refrigeration demand. The air conditioner refrigeration control method in the ECO mode of the hybrid electric vehicle provided by the application limits the compressor power when the system performs air conditioner refrigeration, avoids damage to the battery caused by excessive consumption of the power battery power, is more refined in energy consumption control, and achieves a more optimal energy-saving effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioning refrigeration control, in particular to an air conditioning refrigeration control method and system in ECO mode of a hybrid electric vehicle. BACKGROUND

[0002] How to make energy consumption to the extreme, according to different driving modes, different internal and external conditions on the compressor power of air conditioning refrigeration, become energy distribution fine control means.

[0003] Therefore, an air conditioning refrigeration control method in ECO mode of a hybrid electric vehicle is needed, which limits the compressor power during air conditioning refrigeration according to different driving modes and different internal and external conditions to achieve fine control. SUMMARY

[0004] This section aims to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the specification to avoid obscuring the purpose of this section, abstract and title, and such simplifications or omissions cannot be used to limit the scope of the present application.

[0005] In view of the above problems, the present application is proposed.

[0006] Therefore, the technical problem solved by the present application is: when refrigerating in ECO mode, if the system does not limit the compressor power, it may cause excessive consumption of battery power, and when refrigerating in ECO mode, the system limits the power of the compressor according to the ambient temperature and the battery SOC value, taking the minimum value, if the limited power is too low, there may be a risk that the compressor cannot start.

[0007] To solve the above technical problems, the present application provides the following technical scheme: an air conditioning refrigeration control method in ECO mode of a hybrid electric vehicle, comprising:

[0008] Collecting real-time parameters in the vehicle to determine the driving mode;

[0009] When the system detects that the driving mode is ECO mode, the air conditioning refrigeration control is performed when the vehicle state and the driver's demand indicate that there is a refrigeration demand, and the refrigeration demand is sent to the air conditioning controller;

[0010] When the air conditioning controller receives the system refrigeration demand request, the compressor is controlled to refrigerate according to the electric compressor power limit value to meet the system refrigeration demand.

[0011] As a preferred scheme of the air conditioning refrigeration control method in ECO mode of a hybrid electric vehicle, the collecting of real-time parameters in the vehicle comprises:

[0012] The AC refrigeration switch module monitors the air conditioner target gear of the user and the environmental temperature feedback to the HCU control module, the BMS battery module monitors the battery state feedback to the HCU control module, the MCU micro-control module monitors the actual rotating speed and torque feedback to the HCU control module, and the DCDC converter module monitors the current and voltage signal feedback to the HCU control module.

[0013] As a preferred scheme of the air conditioner refrigeration control method of the hybrid electric vehicle in the ECO mode, the electric compressor power limit value comprises:

[0014] an electric compressor power first limit value and an electric compressor power second limit value.

[0015] The electric compressor power first limit value is set according to the environmental temperature.

[0016] The electric compressor power second limit value is set according to the battery SOC value and the actual power distribution of the vehicle, and the second limit value is set according to different battery SOCs.

[0017] The electric compressor power first limit value and the electric compressor power second limit value are compared, and the minimum value of the two is selected as the compressor limit power.

[0018] As a preferred scheme of the air conditioner refrigeration control method of the hybrid electric vehicle in the ECO mode, the electric compressor power first limit value comprises:

[0019] When the environmental temperature is ≤5℃, the compressor power limit value is set to 400W.

[0020] When the environmental temperature is >5℃ and <20℃, the limit compressor power is set to 400-1000W.

[0021] When the environmental temperature is ≥20℃ and <30℃, the limit compressor power is set to 1000-1600W.

[0022] When the environmental temperature is ≥30℃ and <35℃, the limit compressor power is set to 1600-2000W.

[0023] When the environmental temperature is ≥35℃ and <40℃, the limit compressor power is set to 2000-2600W.

[0024] When the environmental temperature is ≥40℃, the limit compressor power is set to 2600W.

[0025] When the driver sets the vehicle to ECO mode and the air conditioning system has a refrigeration demand, to avoid excessive consumption of battery power, the system sets different compressor power limit values according to the external environment temperature and the battery SOC value and the vehicle power distribution, and takes the minimum value to limit the power of the compressor. In addition, since the instantaneous power of the compressor during startup will reach 350W, too low power limit will cause the compressor to fail to start, therefore, when the environment temperature is below 5℃, the HCU limits the lower limit of the compressor power to 400W.

[0026] As a preferred embodiment of the air conditioning refrigeration control method of the hybrid vehicle in ECO mode, the second electric compressor power limit value comprises:

[0027] When the battery SOC value is ≤10%, the compressor power limit value is set to 400W;

[0028] When the battery SOC value is >10% and <20%, the compressor power limit is set to 400-1000W;

[0029] When the battery SOC value is ≥20% and <30%, the compressor power limit is set to 1000-1600W;

[0030] When the battery SOC value is ≥30% and <40%, the compressor power limit is set to 1600-2000W;

[0031] When the battery SOC value is ≥40% and <45%, the compressor power limit is set to 2000-2600W;

[0032] When the battery SOC value is ≥45%, the compressor power limit is set to 2600W.

[0033] As a preferred embodiment of the air conditioning refrigeration control method of the hybrid vehicle in ECO mode, the judgment of the driving mode comprises:

[0034] When the HCU control module receives the real-time parameters, it analyzes the driving mode and determines whether the driving mode is ECO mode;

[0035] When the driving mode is ECO mode, the HCU control module determines the air conditioning compression according to the environment temperature value and limits the compressor power during air conditioning refrigeration;

[0036] When the driving mode is not ECO mode, the HCU control module sends the second electric compressor power limit value to the AC refrigeration switch module, and the AC refrigeration switch module performs refrigeration operation according to the power limit value sent by the HCU control module.

[0037] As a preferred solution of the air conditioning refrigeration control method of the hybrid electric vehicle in the ECO mode, the compressor power is limited when the air conditioner is refrigerated.

[0038] When the electric compressor power second limit value is greater than the electric compressor power first limit value, the HCU control module sends the first limit value to the AC refrigeration switch module, and the AC refrigeration switch module performs refrigeration operation according to the power limit value sent by the HCU control module;

[0039] When the electric compressor power second limit value is less than or equal to the electric compressor power first limit value, the HCU control module sends the second limit value to the AC refrigeration switch module, and the AC refrigeration switch module performs refrigeration operation according to the power limit value sent by the HCU control module;

[0040] The power limit value of the electric compressor is sent to the air conditioner controller through the CAN bus.

[0041] The technical problem solved by the present application is that when the driver sets the vehicle in the ECO mode and the air conditioning system has a refrigeration demand, the battery power is easily consumed, and the compressor power cannot be reasonably limited when the air conditioner is refrigerated.

[0042] To solve the above technical problems, the present application provides the following technical scheme: an air conditioning refrigeration control system for a hybrid electric vehicle in an ECO mode, characterized in that it comprises,

[0043] HCU control module, BMS battery module, AC refrigeration switch module, MCU micro control module, DCDC converter module;

[0044] The HCU control module is a device for controlling the air conditioner compressor refrigeration, which is used to collect the data collected by the BMS battery module, the AC refrigeration switch module, the MCU micro control module and the DCDC converter module, and to judge whether it is in the ECO mode, and to control the air conditioner refrigeration when in the ECO mode;

[0045] The BMS battery module is a device for monitoring the state of the battery, which is used to monitor the state of the battery and feed back to the HCU control module;

[0046] The AC refrigeration switch module is a device for monitoring the air conditioning target gear and the environment temperature of the user, which is used to monitor the air conditioning target gear and the environment temperature of the user and feed back to the HCU control module;

[0047] The MCU micro control module is a device for monitoring the implementation of speed and torque state, which is used to monitor the implementation of speed and torque state and feed back to the HCU control module;

[0048] The DCDC converter module is a device for monitoring the current and voltage signal states and feeding back to the HCU control module.

[0049] A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method as described above when executing the computer program.

[0050] A computer readable storage medium having a computer program stored thereon, characterized in that the computer program, when executed by a processor, implements the steps of the method as described above.

[0051] The ECO mode air conditioning refrigeration control method of the hybrid electric vehicle provided by the application limits the compressor power when the air conditioner is refrigerated in the ECO driving mode, avoids excessive consumption of power battery power, increases the judgment of external environment temperature and battery SOC, sets different limit powers according to different environment temperatures and battery SOCs, and takes the minimum value of the two as the compressor limit power, so that the energy consumption control is more refined, a better energy-saving effect is achieved, the instantaneous power of the compressor when starting is considered to be 350W, the limit compressor power is set to 400W when the environment temperature is below 5℃, the risk that the compressor cannot start is avoided, and the comfort and safety of driving are affected. BRIEF DESCRIPTION OF DRAWINGS

[0052] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0053] Figure 1 A hybrid electric vehicle ECO mode air conditioning refrigeration control method is provided for an embodiment of the application;

[0054] Figure 2 A hybrid electric vehicle ECO mode air conditioning refrigeration control method is provided for an embodiment of the application;

[0055] Figure 3 A hybrid electric vehicle ECO mode air conditioning refrigeration control method is provided for an embodiment of the application;

[0056] Figure 4A whole structure diagram of an air conditioning refrigeration control system in an ECO mode of a hybrid vehicle is provided for a second embodiment of the present application;

[0057] Figure 5 An air conditioning refrigeration energy consumption comparison chart under different temperature conditions is provided for a hybrid vehicle air conditioning refrigeration control method in an ECO mode of a fourth embodiment of the present application;

[0058] Figure 6 An air conditioning refrigeration battery endurance ability comparison chart under different pool SOC value conditions is provided for a hybrid vehicle air conditioning refrigeration control method in an ECO mode of a fourth embodiment of the present application. DETAILED DESCRIPTION

[0059] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work should belong to the protection scope of the present application.

[0060] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the concept of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0061] Secondly, the "one embodiment" or "embodiment" referred to herein can include specific features, structures or characteristics contained in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0062] The present application is described in detail in conjunction with the schematic diagram, and in the detailed description of the embodiments of the present application, the cross-sectional view of the device structure is partially enlarged without the general proportion for the convenience of description, and the schematic diagram is only an example, which should not limit the scope of protection of the present application. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in the actual manufacture.

[0063] Meanwhile, in the description of the present application, it should be noted that the terms "upper, lower, inner and outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first, second or third" are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0064] Unless otherwise expressly specified and limited, the terms "mounting, connecting, connecting" in the present application should be understood broadly, for example: it can be fixed connection, detachable connection or integral connection; it can also be mechanical connection, electrical connection or direct connection, it can also be indirectly connected through intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0065] Embodiment 1

[0066] Reference Figures 1-3 For an embodiment of the present application, a kind of air conditioning refrigeration control method of ECO mode of hybrid vehicle is provided, comprising:

[0067] Collecting real-time parameters in the vehicle, and determining the driving mode.

[0068] When the system detects that the driving mode is ECO mode, the air conditioning refrigeration control is carried out when the vehicle state and the driver demand are judged to have refrigeration demand, and the refrigeration demand is sent to the air conditioning controller.

[0069] When the air conditioning controller receives the system refrigeration demand request, the compressor is controlled to carry out refrigeration work according to the electric compressor power limit value, so as to meet the system refrigeration demand.

[0070] Collecting real-time parameters in the vehicle includes: AC refrigeration switch module monitors the air conditioning target gear and environmental temperature of user and feeds back to HCU control module, BMS battery module monitors battery state and feeds back to HCU control module, MCU micro control module monitors actual speed and torque and feeds back to HCU control module, and DCDC converter module monitors current and voltage signal and feeds back to HCU control module.

[0071] The electric compressor power limit value includes: electric compressor power first limit value and electric compressor power second limit value.

[0072] The electric compressor power first limit value is set according to the environmental temperature.

[0073] The second limit value of the electric compressor power is comprehensively considered according to the battery SOC value and the actual power distribution of the whole vehicle, and the second limit value is set according to different battery SOC.

[0074] The first limit value of the electric compressor power and the second limit value of the electric compressor power are compared, and the minimum value of the two is selected as the compressor limit power.

[0075] As shown in Figure 2 The first limit value of the electric compressor power includes:

[0076] When the ambient temperature is ≤5℃, the compressor power limit value is set to 400W.

[0077] When the ambient temperature is >5℃ and <20℃, the limit compressor power is set to 400-1000W.

[0078] When the ambient temperature is ≥20℃ and <30℃, the limit compressor power is set to 1000-1600W.

[0079] When the ambient temperature is ≥30℃ and <35℃, the limit compressor power is set to 1600-2000W.

[0080] When the ambient temperature is ≥35℃ and <40℃, the limit compressor power is set to 2000-2600W.

[0081] When the ambient temperature is ≥40℃, the limit compressor power is set to 2600W.

[0082] As shown in Figure 3 The second limit value of the electric compressor power includes:

[0083] When the battery SOC value is ≤10%, the compressor power limit value is set to 400W.

[0084] When the battery SOC value is >10% and <20%, the limit compressor power is set to 400-1000W.

[0085] When the battery SOC value is ≥20% and <30%, the limit compressor power is set to 1000-1600W.

[0086] When the battery SOC value is ≥30% and <40%, the limit compressor power is set to 1600-2000W.

[0087] When the battery SOC value is ≥40% and <45%, the limit compressor power is set to 2000-2600W.

[0088] When the battery SOC value is ≥45%, the limit compressor power is set to 2600W.

[0089] When the HCU control module receives the real-time parameters, it analyzes the driving mode and determines whether the driving mode is the ECO mode.

[0090] When the driving mode is the ECO mode, the HCU control module determines the air conditioner compression according to the ambient temperature value, and limits the compressor power when the air conditioner is cooling.

[0091] When the driving mode is not the ECO mode, the HCU control module sends the second limit value of the electric compressor power to the AC refrigeration switch module, and the AC refrigeration switch module performs the refrigeration operation according to the power limit value sent by the HCU control module.

[0092] When the second limit value of the electric compressor power is greater than the first limit value of the electric compressor power, the HCU control module sends the first limit value to the AC refrigeration switch module, and the AC refrigeration switch module performs the refrigeration operation according to the power limit value sent by the HCU control module.

[0093] When the second limit value of the electric compressor power is less than or equal to the first limit value of the electric compressor power, the HCU control module sends the second limit value to the AC refrigeration switch module, and the AC refrigeration switch module performs the refrigeration operation according to the power limit value sent by the HCU control module.

[0094] The refrigeration demand sent to the air conditioner controller includes sending the electric compressor power limit value to the air conditioner controller through the CAN bus.

[0095] By judging the ambient temperature, the compressor power is limited according to the ambient temperature, which saves energy consumption; by judging the battery SOC, the compressor power is limited to ensure that the battery is not excessively consumed; when the ambient temperature is too low, the compressor power limit value is set to a lower limit of 400W, which avoids the risk of unsuccessful start of the compressor.

[0096] Embodiment 2

[0097] Reference Figure 4 For an embodiment of the present application, an air conditioner refrigeration control system in ECO mode of a hybrid electric vehicle is provided, comprising:

[0098] The HCU control module 100, the BMS battery module 200, the AC refrigeration switch module 300, the MCU micro-control module 400, and the DCDC converter module 500.

[0099] The HCU control module 100 is a device for controlling the air conditioner compressor refrigeration, which is used to collect the data collected by the BMS battery module 200, the AC refrigeration switch module 300, the MCU micro-control module 400, and the DCDC converter module 500, to determine whether it is in the ECO mode, and to control the air conditioner refrigeration when in the ECO mode.

[0100] The BMS battery module 200 is a device for monitoring the battery state, for monitoring the battery state and feeding back to the HCU control module 100.

[0101] The AC refrigeration switch module 300 is a device for monitoring the user's air conditioning target gear and environmental temperature, for monitoring the user's air conditioning target gear and environmental temperature and feeding back to the HCU control module 100.

[0102] The MCU micro-control module 400 is a device for monitoring the implementation of the speed and torque state, for monitoring the implementation of the speed and torque state and feeding back to the HCU control module 100.

[0103] The DCDC converter module 500 is a device for monitoring the current and voltage signal state, for monitoring the current and voltage signal state and feeding back to the HCU control module 100.

[0104] As shown in Figure 4 The system limits the power of the compressor when the air conditioner is refrigerated in the ECO driving mode, avoids the damage to the battery caused by the excessive consumption of the power battery power, and controls the energy consumption more finely, so that the energy-saving effect is better.

[0105] Embodiment 3

[0106] For an embodiment of the present application, which is different from the first two embodiments:

[0107] If the function is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application or the part of the prior art that essentially contributes or the part of the technical solutions can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various program code storage media.

[0108] The logic and / or steps represented in flow diagrams or otherwise described herein, for example, can be considered as a sequence of executable instructions, and can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions, or a combination of the above. For the purposes of this specification, a "computer-readable medium" can be any apparatus that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device.

[0109] More specific examples (a non-exhaustive list) of the computer-readable medium include the following: an electrical connection (electronic) having one or more wires, a portable computer diskette (magnetic), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium can also be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, for example, via optical scanning of the paper or other medium, then compiled, interpreted, or otherwise processed in a suitable manner, if necessary, and stored in a computer memory.

[0110] It should be understood that aspects of the application can be implemented in hardware, software, firmware or combinations thereof. In the above embodiments, the various steps or methods can be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, and in another embodiment, any of the following technologies, known in the art, or a combination thereof, can be used: discrete logic circuitry having logic gates for implementing logic functions on data signals, application specific integrated circuits having appropriate combinational logic gates, programmable gate arrays (PGA), field programmable gate arrays (FPGA), and the like.

[0111] Example 4

[0112] Reference Figures 5-6 For one embodiment of the application, a method for air conditioning refrigeration control in ECO mode of a hybrid vehicle is provided. In order to verify the beneficial effects of the application, economic benefit calculation and simulation experiments are used for scientific demonstration.

[0113] First, for the above-mentioned embodiment algorithm, the energy consumption under different conditions is taken as the variable for evaluating the air conditioning refrigeration control in ECO mode of the hybrid vehicle, and the economic benefit of the algorithm is measured. The experimental results are shown in Tables 1-2 as follows:

[0114] Table 1 Comparison table of air conditioning refrigeration energy consumption under different temperature conditions (unit: W)

[0115] 5℃ 10℃ 15℃ 20℃ 25℃ 30℃ 35℃ 40℃ Conventional method 500 700 900 1100 1400 1700 2050 2150 Method of the invention 400 600 800 1000 1300 1600 2000 2100

[0116] Table 2 Comparison table of battery endurance under different battery SOC value conditions (unit: km)

[0117] 10％ 15％ 20％ 25％ 30％ 35％ 40％ 45％ Conventional method 7.1 10.7 14.2 17.8 21.1 24.6 28.4 32 Method of the invention 7.5 11.3 15.1 18.9 22.7 26.5 30.6 34.4

[0118] From Figures 5-6 It can be seen that under different conditions, the air conditioning refrigeration control of the hybrid electric vehicle in the ECO mode using the method of the present application can achieve the effect of saving energy consumption more than the traditional method, and ensures that the battery is not excessively consumed.

[0119] According to the limitation of the compressor power during air conditioning refrigeration under different driving modes and different internal and external conditions, the fine control of energy distribution is achieved, and the risk of the compressor being unable to start due to too low power limitation is avoided.

[0120] It should be noted that the above examples are only used to illustrate the technical solutions of the present application and not to limit it. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A method for controlling air conditioning cooling in ECO mode of a hybrid electric vehicle, characterized in that, include: Collect real-time parameters inside the vehicle to determine the driving mode; When the system detects that the driving mode is ECO mode, it determines that there is a need for cooling based on the vehicle status and the driver's needs, and then sends the cooling request to the air conditioning controller. When the air conditioning controller receives a system cooling demand request, it limits and controls the compressor to perform cooling work according to the power limit value of the electric compressor in order to meet the system cooling demand. The power limit values ​​for the electric compressor include: a first power limit value for the electric compressor and a second power limit value for the electric compressor; The first power limit value of the electric compressor is set according to the ambient temperature; The second power limit value of the electric compressor is set based on a comprehensive consideration of the battery SOC value and the actual power distribution of the vehicle, and the second limit value is set according to different battery SOC values. The first power limit value and the second power limit value of the electric compressor are compared, and the minimum value between the two is selected as the compressor power limit value; The determination of the driving mode includes: after the HCU control module receives the above real-time parameters, it analyzes the driving mode and determines whether the driving mode is ECO mode; When the driving mode is ECO mode, the HCU control module determines the air conditioning compression based on the ambient temperature value and limits the compressor power when the air conditioning is cooling. When the driving mode is not ECO mode, the HCU control module sends the second power limit value of the electric compressor to the AC cooling switch module, and the AC cooling switch module performs cooling operation according to the power limit value sent by the HCU control module. The limitation of compressor power during air conditioning cooling includes: when the second limit value of electric compressor power is greater than the first limit value of electric compressor power, the HCU control module sends the first limit value to the AC cooling switch module, and the AC cooling switch module performs cooling operation according to the power limit value sent by the HCU control module; When the second power limit of the electric compressor is less than or equal to the first power limit of the electric compressor, the HCU control module sends the second limit value to the AC refrigeration switch module, and the AC refrigeration switch module performs the refrigeration operation according to the power limit value sent by the HCU control module. Sending the cooling request to the air conditioning controller includes sending the power limit value of the electric compressor to the air conditioning controller via the CAN bus.

2. The air conditioning cooling control method for a hybrid electric vehicle in ECO mode as described in claim 1, characterized in that, The real-time parameters collected inside the vehicle include: The AC cooling switch module monitors the user's target air conditioning setting and ambient temperature and feeds back to the HCU control module. The BMS battery module monitors the battery status and feeds back to the HCU control module. The MCU microcontroller module monitors the actual speed and torque and feeds back to the HCU control module. The DC-DC converter module monitors the current and voltage signals and feeds back to the HCU control module.

3. The air conditioning cooling control method for a hybrid electric vehicle in ECO mode as described in claim 2, characterized in that, The first power limit value for the electric compressor includes: When the ambient temperature is ≤5℃, the compressor power limit is set to 400W; When the ambient temperature is >5℃ and <20℃, the compressor power should be limited to 400-1000W. When the ambient temperature is ≥20℃ and <30℃, the compressor power should be limited to 1000-1600W. When the ambient temperature is ≥30℃ and <35℃, the compressor power should be limited to 1600-2000W. When the ambient temperature is ≥35℃ and <40℃, the compressor power should be limited to 2000-2600W. When the ambient temperature is ≥40℃, the compressor power is limited to 2600W.

4. The air conditioning cooling control method for a hybrid electric vehicle in ECO mode as described in claim 3, characterized in that, The second power limit value for the electric compressor includes: When the battery SOC value is ≤10%, the compressor power limit value is set to 400W; When the battery SOC value is >10% and <20%, the compressor power is limited to 400-1000W. When the battery SOC value is ≥20% and <30%, the compressor power is limited to 1000-1600W; When the battery SOC value is ≥30% and <40%, the compressor power is limited to 1600-2000W; When the battery SOC value is ≥40% and <45%, the compressor power is limited to 2000-2600W; When the battery SOC value is ≥45%, the compressor power is limited to 2600W.

5. An air conditioning cooling control system for a hybrid electric vehicle in ECO mode, employing the air conditioning cooling control method for a hybrid electric vehicle in ECO mode as described in any one of claims 1 to 4, characterized in that, include: HCU control module (100), BMS battery module (200), AC cooling switch module (300), MCU microcontroller module (400), DC-DC converter module (500); The HCU control module (100) is a device for controlling the air conditioner compressor's cooling. It is used to collect data from the BMS battery module (200), AC cooling switch module (300), MCU microcontroller module (400), and DC-DC converter module (500), and to determine whether it is in ECO mode. When in ECO mode, it controls the air conditioner's cooling. The BMS battery module (200) is a device for monitoring battery status, used to monitor battery status and feed it back to the HCU control module (100); The AC cooling switch module (300) is a device for monitoring the user's target air conditioning setting and ambient temperature, and is used to monitor the user's target air conditioning setting and ambient temperature and feed them back to the HCU control module (100). The MCU microcontroller module (400) is a device for monitoring the implementation speed and torque status, and is used to monitor the implementation speed and torque status and feed it back to the HCU control module (100); The DC-DC converter module (500) is a device for monitoring the status of current and voltage signals, and is used to monitor the status of current and voltage signals and feed them back to the HCU control module (100).

6. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 4.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 4.

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