Heat dissipation control method, device and system and air conditioner

Abstract

The invention discloses a heat dissipation control method, device and system and an air conditioner, the method is applied to the air conditioner of an amphibious vehicle, and the method comprises the steps that an acquired working condition signal is compared with a preset threshold value, if it is judged that the vehicle enters a land mode, a circulating water pump is shut down, an electronic expansion valve is controlled to compensate the opening degree, and a condensation fan is started after delay confirmation; if the water surface mode is entered, a condensation fan is cut off, an electronic expansion valve is controlled to contract the opening degree, and a circulating water pump is started after delay confirmation; and if the transition mode is entered, a heat dissipation path is maintained, and the compressor frequency and the opening degree of the electronic expansion valve are subjected to limiting protection. According to the invention, the working condition signal is collected and compared with the preset threshold value, the land mode, the water surface mode or the transition mode is automatically determined as the target heat dissipation mode, and then corresponding heat dissipation path switching and device regulation and control strategies are executed according to different target heat dissipation modes. Therefore, the problem that an air conditioning system of an existing vehicle cannot adaptively adjust the heat dissipation mode between the land working condition and the water area working condition is solved.

Description

Technical Field

[0001] This invention relates to the field of heat exchange regulation technology, and in particular to a heat dissipation control method, device, system and air conditioner. Background Technology

[0002] Existing air conditioning systems in amphibious special operations vehicles largely follow the technical approach of conventional land vehicles or armored vehicles, generally employing a single air-cooled condenser heat dissipation structure, i.e., cooling the condenser through air convection. When the vehicle is on land, this air-cooling method can achieve heat exchange through natural wind or forced ventilation. However, when the vehicle enters water and operates in low-speed floating, semi-submersible, or static floating conditions, the external airflow conditions deteriorate significantly, and some heat dissipation channels may be covered or blocked by water, leading to a decrease in condenser heat dissipation efficiency, an increase in condensing pressure, and a corresponding reduction in the cooling capacity of the air conditioning system. Meanwhile, the aquatic environment itself has the characteristics of high specific heat capacity and stable temperature; if external water can be used as a condensation heat exchange medium, higher heat exchange efficiency can be achieved. However, existing air conditioning systems lack integration of water-cooled condensation heat exchange paths in their heat dissipation architecture, making it impossible to adapt the heat dissipation method to different land and water conditions.

[0003] For example, patent CN110816256 A discloses an external heat exchange system for amphibious vehicles. This solution mainly proposes an external heat exchange structure for engine cooling, but it does not address the mode switching control requirements of the air conditioning cooling system under different operating conditions, nor does it provide technical means to automatically identify operating conditions and perform heat dissipation path switching and device coordinated regulation based on the real-time operating status of the vehicle. Summary of the Invention

[0004] This invention provides a heat dissipation control method, device, system, and air conditioner, aiming to solve the technical problem that the air conditioning system of existing amphibious vehicles cannot adapt its heat dissipation method between land and water conditions.

[0005] In a first aspect, embodiments of the present invention provide a heat dissipation control method applied to the air conditioning system of an amphibious vehicle, comprising: In response to the air conditioning turn-on command, the system initializes and collects the vehicle's operating condition signals. The operating condition signal is compared with a preset threshold to determine the target heat dissipation mode; The heat dissipation path is switched and the device is adjusted according to the target heat dissipation mode. Specifically, if the target heat dissipation mode is the land mode, the circulating water pump is shut down, the electronic expansion valve is controlled to compensate the opening, and the condenser fan is started after a delay confirmation. If the target heat dissipation mode is the water surface mode, the condenser fan is shut off, the electronic expansion valve is controlled to contract the opening, and the circulating water pump is started after a delay confirmation. If the target heat dissipation mode is the transition mode, the current heat dissipation path is maintained and the compressor frequency and the opening of the electronic expansion valve are limited for protection.

[0006] Secondly, embodiments of the present invention provide a heat dissipation control device for use in the air conditioning of amphibious vehicles, comprising: The data initialization unit is used to respond to the air conditioning start command, control the air conditioning system to initialize, and collect the vehicle's operating condition signals. The data comparison unit is used to compare the operating condition signal with a preset threshold to determine the target heat dissipation mode; The mode determination unit is used to perform heat dissipation path switching and device regulation according to the target heat dissipation mode. Specifically, if the target heat dissipation mode is the land mode, the circulating water pump is shut down, the electronic expansion valve compensation opening is controlled, and the condenser fan is started after a delay confirmation. If the target heat dissipation mode is the water surface mode, the condenser fan is shut off, the electronic expansion valve contraction opening is controlled, and the circulating water pump is started after a delay confirmation. If the target heat dissipation mode is the transition mode, the current heat dissipation path is maintained, and the compressor frequency and electronic expansion valve opening are limited and protected.

[0007] Thirdly, embodiments of the present invention provide a heat dissipation control system, including the heat dissipation control device of the second aspect.

[0008] Fourthly, embodiments of the present invention provide an air conditioner, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the heat dissipation control method of the first aspect.

[0009] This invention provides a heat dissipation control method applied to the air conditioning system of an amphibious vehicle. The method includes: responding to an air conditioning start command, initializing the air conditioning system and collecting the vehicle's operating condition signals; comparing the operating condition signals with preset thresholds to determine a target heat dissipation mode; and performing heat dissipation path switching and device regulation according to the target heat dissipation mode. Specifically, if the target heat dissipation mode is a land mode, the circulating water pump is shut down, the electronic expansion valve compensation opening is controlled, and the condenser fan is started after a delay confirmation; if the target heat dissipation mode is a water surface mode, the condenser fan is shut off, the electronic expansion valve contraction opening is controlled, and the circulating water pump is started after a delay confirmation; if the target heat dissipation mode is a transition mode, the current heat dissipation path is maintained, and the compressor frequency and electronic expansion valve opening are limited for protection. This invention collects operating condition signals and compares them with preset thresholds to automatically determine the land mode, water surface mode, or transition mode as the target heat dissipation mode. Then, it executes corresponding heat dissipation path switching and device control strategies for different target heat dissipation modes, thereby solving the problem that the existing vehicle air conditioning system cannot adaptively adjust the heat dissipation mode between land and water operating conditions.

[0010] This invention also provides a heat dissipation control device, a heat dissipation control system, and an air conditioner, which have the same beneficial effects as described above. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic flowchart of a heat dissipation control method provided in an embodiment of the present invention; Figure 2 This is another schematic flowchart of a heat dissipation control method provided in an embodiment of the present invention; Figure 3 This is a schematic block diagram of a heat dissipation control device provided in an embodiment of the present invention.

[0013] Explanation of reference numerals in the attached figures: 300. Heat dissipation control device; 301. Data initialization unit; 302. Data comparison unit; 303. Modal determination unit. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0016] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0017] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0018] Please see below. Figure 1 , Figure 1 The flowchart of a heat dissipation control method provided in an embodiment of the present invention specifically includes steps S101 to S103.

[0019] S101. In response to the air conditioning start command, control the air conditioning system to initialize and collect the vehicle's operating condition signals; S102. Compare the operating condition signal with a preset threshold to determine the target heat dissipation mode; S103. Perform heat dissipation path switching and device regulation according to the target heat dissipation mode; wherein, if the target heat dissipation mode is the land mode, the circulating water pump is shut down, the electronic expansion valve is controlled to compensate the opening, and the condenser fan is started after a delay confirmation; if the target heat dissipation mode is the water surface mode, the condenser fan is shut off, the electronic expansion valve is controlled to contract the opening, and the circulating water pump is started after a delay confirmation; if the target heat dissipation mode is the transition mode, the current heat dissipation path is maintained and the compressor frequency and electronic expansion valve opening are limited and protected.

[0020] This heat dissipation control method is applied to the air conditioning system of an amphibious vehicle. The air conditioning system integrates an air-cooled condensing heat exchange path and a water-cooled condensing heat exchange path in its refrigeration circuit. The air-cooled condensing heat exchange path is equipped with a condenser fan, while the water-cooled condensing heat exchange path is equipped with a circulating water pump. The refrigeration circuit also includes a compressor and an electronic expansion valve. This method achieves adaptive switching between air-cooling and water-cooling by collecting the vehicle's operating condition signals and performing modal analysis. Specifically, this method includes steps S101 to S103.

[0021] In step S101, after the air conditioning system receives the air conditioning start command, the system main controller controls the air conditioning system to initialize, putting each functional module in the air conditioning system into a ready state, providing the basic conditions for subsequent decision-making and execution of the heat dissipation mode. Simultaneously with initialization, the system collects the vehicle's current operating condition signal. This operating condition signal reflects the vehicle's operating environment status, providing data for subsequently determining the target heat dissipation mode.

[0022] In one embodiment, step S101 includes: Upon receiving the air conditioner start command, the system is controlled to enter the initialization state and the sensor power is simultaneously turned on to obtain the sensor power-on status information. Based on the power-on status information of the sensor, the key parameters of the air conditioning system are pre-scanned to obtain the key parameter scanning results. Based on the scan results of the key parameters, the standby compliance status of the compressor and electronic expansion valve is confirmed through a preset self-test program to obtain initialization information.

[0023] In this embodiment, when the system main controller receives the air conditioning start command, it controls the air conditioning system to enter the initialization state and simultaneously connects the sensor power supply to obtain sensor power-on status information. The air conditioning start command can be triggered by the cockpit control panel or automatically issued by the vehicle control system. Upon receiving the air conditioning start command, the system main controller immediately controls the air conditioning system to switch from standby state to initialization state, enabling each functional module in the refrigeration circuit to enter the power-on preparation stage. While controlling the air conditioning system to enter the initialization state, the system main controller simultaneously connects the sensor power supply, that is, supplies power to various sensors deployed in the vehicle body and refrigeration circuit. The aforementioned sensors include, but are not limited to, draft sensors (such as hydrostatic sensors or ultrasonic sensors) installed on the exterior of the vehicle body and condensation pressure sensors in the refrigeration circuit. After the power is connected, each sensor completes a power-on self-test in sequence. The system main controller receives and summarizes the power-on response signals returned by each sensor to obtain sensor power-on status information. This sensor power-on status information is used to characterize whether each sensor has successfully completed power-on and entered normal working state, providing a prerequisite guarantee for subsequent operating condition identification and heat dissipation mode decision-making based on multi-source signals.

[0024] Furthermore, based on the power-on status information of the sensors, a pre-scanning process is performed on the key parameters of the air conditioning system to obtain the key parameter scan results. After confirming that all sensors have been successfully powered on and are in normal working condition, the system main controller then performs a pre-scanning process on the key parameters of the air conditioning system. The key parameters refer to the core operating parameters closely related to the operating status of the air conditioning system's refrigeration circuit, including but not limited to the current operating frequency of the compressor, the current opening position of the electronic expansion valve (EEV), the condensing pressure value of the refrigeration circuit fed back by the condensing pressure sensor, and the electrical status information of each actuator. The pre-scanning process refers to the system main controller performing a comprehensive reading and recording operation on the above key parameters before the air conditioning system officially enters the operating mode, in order to obtain the reference state of the air conditioning system at the current moment. After the system main controller completes the acquisition and recording of all key parameters, it integrates the current values ​​of each parameter to form the key parameter scan results. This key parameter scan result serves as the state reference data during the initialization phase of the air conditioning system, providing a basis for subsequent confirmation of the standby compliance of each core component.

[0025] Furthermore, based on the key parameter scanning results, the standby compliance status of the compressor and electronic expansion valve is confirmed through a preset self-test program to obtain initialization information. The system main controller calls the preset self-test program to compare the parameter values ​​corresponding to the compressor and electronic expansion valve in the key parameter scanning results with their respective preset standby compliance conditions item by item. For the compressor, the self-test program confirms whether its current operating frequency is in a zero-frequency standby state, whether the drive circuit is normal, and whether the protection signal is in a non-triggered state, to determine whether the compressor meets the standby compliance requirements. For the electronic expansion valve, the self-test program confirms whether its current opening position is within the preset initial standby opening range, whether the valve body drive signal responds normally, to determine whether the electronic expansion valve meets the standby compliance requirements. When both the compressor and electronic expansion valve pass the standby compliance status confirmation, the system main controller generates initialization information. This initialization information indicates that the air conditioning system has completed all preparations before startup, all basic components are in a standby and compliant state, and the air conditioning system has the conditions to enter the subsequent heat dissipation mode decision logic, thereby providing basic data support for determining the target heat dissipation mode based on vehicle operating condition signals and executing heat dissipation path switching and device regulation.

[0026] In one embodiment, step S101 further includes: The vehicle's operating parameters under different working surfaces are captured in real time through a multi-channel analog signal acquisition interface to obtain multi-channel raw acquisition signals. Read the draft depth signal from the original multi-channel acquisition signal, and use a digital filtering algorithm to remove noise from the draft depth signal to obtain the filtered draft depth signal. Read the level status signal in the multi-channel raw acquisition signal, and determine whether the air conditioning system is in automatic mode or manual intervention mode based on the level status signal to obtain the control mode status signal; The condensing pressure signal is obtained by reading the pressure signal fed back by the condensing pressure sensor from the multi-channel raw acquisition signal. The filtered draft depth signal, the control mode status signal, and the condensation pressure signal are subjected to multi-channel verification processing and integrated to obtain the operating condition signal set.

[0027] In this embodiment, after the air conditioning system completes initialization, the system enters the real-time acquisition and multi-channel verification stage of multi-dimensional operating condition signals. The system captures the vehicle's operating parameters under different working conditions in real time through a multi-channel analog signal acquisition interface, obtaining multi-channel raw acquisition signals. The system main controller is equipped with a multi-channel analog signal acquisition interface, which is used to simultaneously connect multiple sensors and signal acquisition modules deployed in various parts of the vehicle body and the refrigeration circuit. During mission execution, the amphibious vehicle's working surfaces vary depending on the operating environment, including various types such as land surfaces, shallow water beaches, and water navigation surfaces. The system main controller captures the analog signals output by each channel sensor in real time at a preset sampling period through the multi-channel analog signal acquisition interface, summarizing the signals acquired by each channel at the same sampling time to form a multi-channel raw acquisition signal. This multi-channel raw acquisition signal includes multi-dimensional parameter data reflecting the characteristics of the vehicle's current operating environment and the operating status of the air conditioning system, providing a raw data source for subsequent processing and verification of signals in each dimension.

[0028] Furthermore, the draft depth signal in the multi-channel raw acquisition signal is read, and a digital filtering algorithm is used to remove noise from the draft depth signal to obtain a filtered draft depth signal. The system main controller reads the draft depth signal from the multi-channel raw acquisition signal. This draft depth signal is acquired in real time by a draft depth sensor installed on the outside of the vehicle body. The draft depth sensor can be a hydrostatic sensor or an ultrasonic sensor, etc., used to measure the current depth of the vehicle body immersed in water. This draft depth signal is denoted as S. w During actual operation, amphibious vehicles are subject to transient interference noise introduced into the draft depth signal by factors such as water surface fluctuations or beach bumps, resulting in a change in the original draft depth signal S. w The presence of short-term jumps or glitches in the draft depth signal S may lead to false triggering if the noisy signal is directly used for subsequent mode determination. Therefore, the system's main controller uses a digital filtering algorithm to filter the draft depth signal S. wNoise removal processing is performed to filter out transient interference noise components caused by water surface fluctuations or beach bumps, retaining the effective signal components that accurately reflect the vehicle's actual draft, resulting in a filtered draft signal. This filtered draft signal exhibits higher signal stability compared to the original draft signal, accurately characterizing the water depth of the vehicle's current environment. It provides reliable environmental characteristic data for subsequent comparison of operating condition signals with preset thresholds to determine the target heat dissipation mode.

[0029] Furthermore, the system reads the level status signal from the multi-channel raw acquisition signal and determines whether the air conditioning system is in automatic mode or manual intervention mode based on the level status signal, thus obtaining a control mode status signal. Specifically, the system main controller reads the level status signal from the multi-channel raw acquisition signal. This level status signal originates from the cockpit manual control module and is obtained by synchronously scanning the level status output by the manual control module. This level status signal is denoted as A. w Level status signal A w This is used to indicate whether the driver has manually intervened in the cooling mode of the air conditioning system through the cockpit manual control module. The system main controller uses the level status signal A. w The system's logic level value determines whether the air conditioning system is currently in automatic (Auto) mode or manual intervention (Manual) mode. Automatic mode refers to the air conditioning system automatically determining and switching cooling modes based on operating condition signals. Manual intervention mode refers to the operating mode where the driver actively specifies the cooling mode through the cockpit manual control module. This manual intervention mode includes manually specified operating states such as forced air cooling mode, forced water cooling mode, and transition mode. The system's main controller generates a control mode status signal based on the above determination results. This control mode status signal identifies the current control mode type of the air conditioning system, providing mode criteria for subsequent cooling mode decision-making logic. This ensures that the system autonomously makes decisions based on operating condition signals in automatic mode and responds to driver commands in manual intervention mode.

[0030] Furthermore, the pressure signal fed back by the condensing pressure sensor from the multi-channel raw acquisition signal is read to obtain the condensing pressure signal. The system main controller reads the pressure signal fed back in real time by the condensing pressure sensor from the multi-channel raw acquisition signal to obtain the condensing pressure signal, which is denoted as P. w The condensing pressure sensor is installed on the high-pressure side of the condenser in the air conditioning system's refrigeration circuit to detect the pressure status during the condensation process in the refrigeration circuit in real time. Condensing pressure signal P wNot only does it serve as an indicator for evaluating the current heat dissipation performance of an air conditioning system, directly reflecting the working efficiency and load matching degree of the condensing heat exchange path, but it also serves as a safety protection threshold during mode switching. This threshold is used to prevent system overpressure in the refrigeration circuit under extreme environmental conditions or abnormal switching conditions, thereby ensuring the operational safety of the air conditioning system during heat dissipation mode switching.

[0031] Finally, the filtered draft depth signal, the control mode status signal, and the condensing pressure signal are subjected to multi-channel verification processing and integrated to obtain a set of operating condition signals. The system main controller performs multi-channel verification processing on the above three signals, namely the filtered draft depth signal, the control mode status signal, and the condensing pressure signal. The multi-channel verification processing refers to the system main controller performing validity verification and consistency checks on the above three signals respectively. After confirming that each signal is within the normal acquisition range and there is no logical contradiction between them, the three signals are integrated to obtain a set of operating condition signals. This set of operating condition signals covers three dimensions of information: the filtered draft depth signal reflecting the water depth characteristics of the vehicle's operating environment, the control mode status signal reflecting the control mode of the air conditioning system, and the condensing pressure signal reflecting the condensing state of the refrigeration circuit. It forms a complete multi-dimensional operating condition signal, which serves as the input data for comparing the operating condition signal with a preset threshold in step S102 to determine the target heat dissipation mode.

[0032] In step S102, the system main controller compares the operating condition signal collected in step S101 with a preset threshold, and determines the target heat dissipation mode suitable for the current vehicle based on the comparison result. This target heat dissipation mode includes three types: land mode, water mode, and transition mode. Specifically, the land mode corresponds to the vehicle being in a land driving condition, the water mode corresponds to the vehicle being in a water navigation condition, and the transition mode corresponds to the vehicle being in an uncertain state between land and water conditions. By comparing the operating condition signal with the preset threshold, the system can determine the current operating environment of the vehicle, thereby identifying the target heat dissipation mode that matches that environment, providing a decision-making basis for subsequent execution of corresponding heat dissipation path switching and device control strategies.

[0033] In one embodiment, step S102 includes: The filtered draft signal is extracted from the operating condition signal, and the filtered draft signal is compared with a preset safe depth threshold to obtain the depth comparison result. The depth comparison results are combined with a preset continuous stability time window for continuous operation condition confirmation, and the target heat dissipation mode is determined according to preset mode determination rules. The mode determination rules include: when the filtered draft depth signal is less than the preset safe depth threshold and the duration is greater than the preset continuous stability time window, it is determined that the conditions for switching to the land mode are met, and the target heat dissipation mode is determined to be the land mode; when the filtered draft depth signal is greater than or equal to the preset safe depth threshold and the duration is greater than the preset continuous stability time window, it is determined that the vehicle has entered the water area operation condition, and the target heat dissipation mode is determined to be the water surface mode; when the triggering conditions for the land mode and the water surface mode are not met, the target heat dissipation mode is determined to be a transition mode.

[0034] In this embodiment, a filtered draft depth signal is extracted from the operating condition signal, and the filtered draft depth signal is compared with a preset safe depth threshold to obtain a depth comparison result. The system main controller extracts the filtered draft depth signal from the operating condition signal integrated in step S101. This filtered draft depth signal is obtained by applying a digital filtering algorithm to the original draft depth signal S. w The stable signal obtained after noise removal processing accurately reflects the vehicle's current draft. The system's main controller logically compares this filtered draft signal with a preset safe depth threshold. This preset safe depth threshold, denoted as H1, is a critical draft value pre-calibrated based on vehicle structural parameters and the layout characteristics of the cooling system, used to distinguish whether the vehicle's current environment is land-based or water-based. When the value of the filtered draft signal is less than the preset safe depth threshold H1, it indicates that the vehicle's immersion depth has not yet reached the critical level requiring a switch to water cooling; when the value of the filtered draft signal is greater than or equal to the preset safe depth threshold H1, it indicates that the vehicle has reached a depth sufficient for condensation and heat exchange using external water. The system's main controller generates a depth comparison result based on this comparison relationship. This result records the magnitude relationship between the filtered draft signal and the preset safe depth threshold H1, providing a basis for subsequent determination of the operating condition continuity using a time window.

[0035] Furthermore, the depth comparison results are combined with a preset continuous stability time window for continuous operation condition verification, and the target heat dissipation mode is determined according to preset modal determination rules. Because amphibious vehicles experience short-term fluctuations in draft signals due to surface roughness during actual operation, especially in beach areas or on the water surface, the depth comparison results may repeatedly change within a short period. Directly determining the modal based solely on the depth comparison results at a single moment could lead to false triggering and frequent switching of the heat dissipation path. Therefore, the system main controller introduces a preset continuous stability time window to verify the continuous operation condition of the depth comparison results. This preset continuous stability time window is denoted as T. w This is a pre-defined continuous time period used to verify the sustained stability of the depth alignment results. The system's main controller continuously monitors the depth alignment results within the pre-defined continuous stability time window T. w Whether the relationship between the filtered draft depth signal and the preset safe depth threshold H1 remains consistent throughout the entire time window T w The result remained unchanged during the specified duration. Only when the depth alignment result is within the preset continuous stability time window T... w Only when the internal temperature remains stable does the system's main controller confirm that the current operating condition has reached a stable state, and then determine the target heat dissipation mode according to the preset modal determination rules. Through the above-mentioned continuous confirmation process of operating conditions, false triggering caused by instantaneous signal fluctuations due to water surface turbulence can be effectively avoided, ensuring the accuracy of modal determination results.

[0036] The modal determination rule specifically includes the following three scenarios: when the filtered draft signal is less than the preset safe depth threshold H1 and the duration of this state is greater than the preset continuous stability time window T. w When the vehicle's draft is consistently below the safe depth threshold H1 for a continuous period, the system's main controller determines that the vehicle is ready to switch to land mode, indicating that it is currently operating on land or has left the water environment, and thus classifies the target cooling mode as land mode. This is further confirmed when the filtered draft signal is greater than or equal to the preset safe depth threshold H1 and the duration of this state is greater than the preset continuous stability time window T. w When the vehicle's draft reaches or exceeds the safe depth threshold H1 for a continuous period of time, the system's main controller determines that the vehicle has entered a water-based operating condition, i.e., the vehicle is currently in a surface operating state such as floating, semi-submersible navigation, or static gliding, and classifies the target heat dissipation mode as the surface mode. When the comparison between the filtered draft signal and the preset safe depth threshold H1 is within the preset continuous stability time window T... wIf the internal temperature fails to remain stable, i.e., the triggering conditions of the land mode and the water mode are not met, it indicates that the vehicle is currently in an uncertain transitional state between land and water conditions. The depth comparison results fluctuate and have not yet converged to a stable range. Based on this, the system main controller determines that the target heat dissipation mode is a transitional mode in order to avoid performing the heat dissipation path switching operation at a stage where the operating conditions are not yet clear.

[0037] In step S103, the system main controller executes the corresponding heat dissipation path switching and device control operations according to the target heat dissipation mode determined in step S102. Since the air conditioning system of the amphibious vehicle integrates two heat dissipation channels—an air-cooled condensation heat exchange path and a water-cooled condensation heat exchange path—different target heat dissipation modes correspond to different heat dissipation path activation methods and device operating states, as detailed below: If the target heat dissipation mode is the land mode, the system shuts down the circulating water pump to cut off the water-cooled condensation heat exchange path and controls the electronic expansion valve to compensate for the opening, i.e., actively increases the opening of the electronic expansion valve to match the heat exchange characteristics under air-cooled heat dissipation and suppress fluctuations in condensation pressure. After a delay confirmation, the system starts the condenser fan to establish an air-cooled condensation heat exchange path, allowing the air conditioning system to complete condensation heat dissipation through the air medium.

[0038] If the target heat dissipation mode is the water surface mode, the system shuts off the condenser fan to close the air-cooled condensation heat exchange path and controls the electronic expansion valve to contract, i.e., actively reduces the opening of the electronic expansion valve to adapt to the high heat exchange intensity of the water-cooled medium and prevent a sudden drop in condensation pressure. After a delay confirmation, the system starts the circulating water pump to establish the water-cooled condensation heat exchange path, using external water as the condensation heat exchange medium to complete heat dissipation.

[0039] If the target heat dissipation mode is a transitional mode, the system maintains the current heat dissipation path without switching, and performs protective measures on the compressor frequency and the opening of the electronic expansion valve. That is, by reducing the compressor frequency and limiting the change range of the electronic expansion valve opening, the refrigeration cycle is protected to avoid impacting the air conditioning system due to frequent switching of the heat dissipation path during the transitional stage when the operating conditions are not yet stable, until the operating condition signal meets the triggering conditions of the land mode or the water mode before the corresponding mode switching is performed.

[0040] In one embodiment, step S103 includes: The determination result of the land mode is sent to the cockpit interactive terminal and it is determined whether the returned instruction is a rejection instruction. If so, the status quo is maintained; otherwise, the land operation mode is entered and the land mode execution instruction is obtained. The circulating water pump is forcibly shut down according to the land mode execution command, and the circulating water pump stop signal and pipeline residual pressure are monitored; The electronic expansion valve is controlled to initiate a feedforward compensation program based on the current ambient temperature to actively increase the opening of the electronic expansion valve; After the delay confirmation period ends, the condenser fan is started to complete the process of entering the land mode.

[0041] In this embodiment, the determination result of the land mode is sent to the cockpit interactive terminal, and it is determined whether the returned instruction is a rejection instruction. If so, the status quo is maintained; otherwise, the land operation mode is entered, and the land mode execution instruction is obtained. When the system main controller determines the filtered draft depth signal S according to the mode determination rules... w When the depth is less than the preset safe depth threshold H1 and the duration of this state is greater than the preset continuous stability time window, the system determines that it meets the conditions for switching to land mode. Before executing the heat dissipation path switch, the system main controller sends the land mode determination result to the cockpit interactive terminal, issuing a "about to enter land heat dissipation mode" warning command to the driver, to ensure that the driver has the right to know and make decisions about the upcoming mode switching operation. After receiving the warning command, the cockpit interactive terminal presents the determination result to the driver and waits for the driver's response. The system main controller then determines whether the command returned by the cockpit interactive terminal is a rejection command. If the driver explicitly issues a rejection command through the cockpit interactive terminal, indicating that the driver does not agree to execute the mode switching operation based on the current combat situation or mission requirements, the system main controller maintains the current operating state of the air conditioning system unchanged and does not execute any heat dissipation path switching action. If the driver clicks to confirm through the cockpit interactive terminal, or does not make any feedback operation within the preset observation time T0, the system main controller assumes that the driver agrees to enter the land operation mode and generates a land mode execution command. The land mode execution command serves as the trigger signal for the subsequent synchronous switching action of each device in the land mode, driving the system to sequentially complete the switching process from the current heat dissipation path to the air-cooled condensation heat exchange path.

[0042] Furthermore, the circulating water pump is forcibly shut down according to the land mode execution command, and the pump stop signal and residual pressure in the pipeline are monitored. Upon receiving the land mode execution command, the system main controller first issues a control command to forcibly shut down the circulating water pump. The circulating water pump is the power device that drives the cooling water to circulate between the refrigeration circuit and the external water body in the water-cooled condensation heat exchange path. Shutting down the circulating water pump aims to cut off the water-cooled condensation heat exchange path and terminate the operation mode that utilizes external water for condensation and heat dissipation. During the process of the circulating water pump receiving the shutdown command and beginning to decelerate and stop, the system main controller continuously monitors the pump stop signal within a preset delay period to confirm that the pump has completely stopped operating and is not in an inertial gliding state. Simultaneously, the system main controller synchronously monitors the residual pressure in the water-cooled heat exchange pipeline, i.e., the water pressure value remaining in the pipeline after the circulating water pump stops. By monitoring both the circulating water pump stop signal and the residual pressure in the pipeline, the system's main controller can accurately determine whether the water-cooled condensing heat exchange path has been completely shut down, thus preventing the air-cooled condensing heat exchange path from being started before the circulating water pump has completely stopped or the residual pressure in the pipeline has been released. This ensures the orderly connection between the two heat exchange paths during the heat dissipation path switching process.

[0043] Furthermore, the electronic expansion valve is controlled to initiate a feedforward compensation program based on the current ambient temperature to actively increase its opening. During the synchronization period of the forced shutdown of the circulating water pump, the system main controller controls the electronic expansion valve (EEV) to initiate the feedforward compensation program based on the current ambient temperature. The feedforward compensation program is a valve opening adjustment strategy pre-written into the system main controller. Its core logic is to actively pre-adjust the opening of the electronic expansion valve based on the current ambient temperature parameters before the heat dissipation path is switched, in order to adapt to the heat exchange characteristics of the new heat dissipation mode that is about to be switched to. Since the land mode adopts an air-cooled condensation heat exchange path, and the heat exchange intensity of the air-cooled method is lower than that of the water-cooled method in the initial stage of mode switching, if the opening of the electronic expansion valve remains unchanged at the smaller value under the water-cooled mode, the condensation efficiency of the refrigerant in the condenser will drop significantly at the moment of switching, which may cause the condensing pressure to rise sharply in a short period of time, impacting the operational stability of the refrigeration cycle. Therefore, the feedforward compensation program calculates the required compensation opening increment based on the current ambient temperature and controls the electronic expansion valve to actively increase its opening, i.e., increase the initial opening value of the electronic expansion valve, to match the relatively low heat transfer intensity in the initial stage of the land-based air-cooled mode, increasing the refrigerant flow supply and effectively suppressing the surge in condensing pressure during mode switching. After the electronic expansion valve completes the opening adjustment and stabilizes at the target compensation opening, the system main controller receives expansion valve compensation completion information. This information indicates that the electronic expansion valve has completed feedforward opening compensation and is in a working state matching the land-based mode.

[0044] After the delay confirmation period ends, the condenser fan is started, completing the process of entering the land mode. Specifically, after the circulating water pump completely stops and the electronic expansion valve completes feedforward compensation, the system main controller enters the delay confirmation phase. This delay confirmation is a time-series waiting period set by the system main controller before the condenser fan is officially started. Its purpose is to ensure that the circulating water pump has completely stopped, the residual pressure in the pipeline has been fully released, and the compensation opening of the electronic expansion valve has been adjusted to the correct position, so that all components of the air conditioning system are stable in a state compatible with the land mode, avoiding transient anomalies in the refrigeration cycle caused by deviations in the switching sequence of components. After the delay confirmation period ends, the system main controller issues a start command to start the roof-mounted condenser fan. The condenser fan is installed at the corresponding position on the condenser on the vehicle roof, driving external air to flow across the condenser surface through forced ventilation, using air as the medium for condensation heat exchange. After the condenser fan starts, the air-cooled condensation heat exchange path is officially established and put into operation, and the air conditioning system completes a smooth transition from water-cooled heat dissipation to air-cooled heat dissipation, thus completing the entire process of entering the land mode.

[0045] In one embodiment, step S103 further includes: The determination result of the water surface mode is sent to the cockpit interactive terminal and it is determined whether the returned instruction is a rejection instruction. If so, the original state is maintained; if not, the water surface operation mode is entered and the water surface mode execution instruction is obtained. According to the water surface mode execution command, the condenser fan is turned off at the optimal response level, and the power supply to the condenser fan is cut off. The thermal state regulation program is activated to control the electronic expansion valve to perform feedforward adjustment based on the real-time collected water temperature data, so as to actively reduce the opening of the electronic expansion valve. After the delay confirmation is completed, the circulating water pump is turned on to establish water circulation and use external water for condensation and heat exchange, thus completing the process of entering the water surface mode.

[0046] In this embodiment, the determination result of the water surface mode is sent to the cockpit interactive terminal, and it is determined whether the returned instruction is a rejection instruction. If so, the status quo is maintained; otherwise, the water surface operation mode is entered, and the water surface mode execution instruction is obtained. When the system main controller determines the filtered draft signal S according to the mode determination rules... wWhen the depth is greater than or equal to a preset safe depth threshold H1 and the duration of this state exceeds a preset continuous stability time window, the system determines that the vehicle has entered a water-based operating condition. Before executing the heat dissipation path switch, the system's main controller sends the determination result of the water surface mode to the cockpit interactive terminal, issuing a warning to the driver to ensure that the driver has the right to know and make decisions regarding the upcoming mode switching operation. After receiving the warning information, the cockpit interactive terminal presents the determination result to the driver and awaits the driver's response. The system's main controller then determines whether the instruction returned by the cockpit interactive terminal is a rejection instruction. If the driver explicitly issues a rejection instruction through the cockpit interactive terminal, indicating that the driver does not agree to execute the mode switching operation based on the current combat situation or mission requirements, the system's main controller maintains the current operating state of the air conditioning system unchanged and does not execute any heat dissipation path switching action. If the driver does not intervene or does not respond within the preset observation time, the system's main controller will automatically force a switch to the water surface operating mode to ensure heat dissipation efficiency and infrared stealth requirements, generating a water surface mode execution instruction. The water surface mode execution command serves as the trigger signal for the subsequent synchronous switching action of each device in the water surface mode, driving the system to sequentially complete the switching process from the current heat dissipation path to the water-cooled condensation heat exchange path.

[0047] Furthermore, according to the water surface mode execution command, shutting down the condenser fan is set as the optimal response level, and the power supply to the condenser fan is simultaneously cut off. Upon receiving the water surface mode execution command, the system main controller sets shutting down the condenser fan as the optimal response level for the system, meaning that shutting down the condenser fan is given the first priority among all pending switching actions. The reason for setting shutting down the condenser fan as the optimal response level is that when the vehicle is in a water environment, the condenser fan, mounted on the vehicle roof, poses a risk of water impact and breakage if its blades come into contact with water while rotating at high speed, causing mechanical damage to the condenser fan itself and surrounding structures. Simultaneously, during operation, the condenser fan exhausts hot air, creating a noticeable infrared thermal plume on the vehicle roof. In a water combat environment, this plume is easily detected by thermal imaging equipment, exposing the vehicle's position and threatening its infrared stealth capabilities. Therefore, the system main controller forcibly cuts off the power to the condenser fan at the optimal response level, causing the condenser fan to completely stop operating in the shortest possible time. This eliminates the problem of blade water impact and breakage and eliminates infrared thermal plume exposure, ensuring the vehicle's safety and stealth in water conditions.

[0048] Furthermore, the thermal state adjustment program is initiated, controlling the electronic expansion valve to perform feedforward adjustment based on real-time collected water temperature data, thereby actively reducing the opening of the electronic expansion valve. During the synchronous period when the condenser fan stops, the system main controller initiates the thermal state adjustment program. This program is a valve opening adjustment strategy pre-programmed into the system main controller to address changes in the thermal state of the refrigeration circuit during water surface mode switching. Its core function is to actively adjust the opening of the electronic expansion valve (EEV) through feedforward adjustment during the heat dissipation path switch from air cooling to water cooling, in order to cope with the impact of changes in the heat transfer characteristics of the water cooling medium on the refrigeration cycle. This thermal state adjustment program controls the electronic expansion valve to perform feedforward adjustment based on real-time collected water temperature data. The water temperature data is collected in real-time by temperature sensors deployed in the water-cooled heat exchange pipeline to reflect the current temperature state of the external water body. Due to the physical characteristics of water, such as high specific heat capacity and stable temperature, the heat transfer intensity after the water-cooled condensation heat exchange path is established is significantly higher than that of the air-cooled method. If the opening of the electronic expansion valve remains at the larger value used in the land mode during the switch to the water surface mode, the high heat transfer shock of the water-cooled medium will cause a sudden drop in condensing pressure within a short period of time. This will lead to the suction pressure in the refrigeration circuit deviating from the safe range, posing a risk to the operational safety of the compressor. Therefore, the thermodynamic state regulation program calculates the required opening reduction based on real-time collected water temperature data and controls the electronic expansion valve to actively reduce its opening, i.e., decrease the current opening value of the electronic expansion valve. This counteracts the sudden drop in condensing pressure caused by the subsequent high heat transfer shock of the water-cooled medium, ensuring that the suction pressure in the refrigeration circuit remains within the safe range, thereby guaranteeing the operational stability and safety of the refrigeration cycle during mode switching.

[0049] After the delay confirmation period, the circulating water pump is started to establish water circulation and utilize external water for condensation heat exchange, completing the process of entering the water surface mode. After the condenser fan has completely stopped and the electronic expansion valve has completed its feedforward adjustment of the contraction opening, the system main controller enters the delay confirmation phase. This delay confirmation is a time-series waiting period set by the system main controller before officially starting the circulating water pump. Its purpose is to ensure that the condenser fan has completely stopped operating, the fan power has been completely disconnected, and the contraction opening of the electronic expansion valve has been adjusted to the correct position, so that all components of the air conditioning system are stable in a state adapted to the water surface mode, avoiding transient anomalies in the refrigeration cycle caused by deviations in the switching sequence of components. After the delay confirmation period, the system main controller issues a start command to start the circulating water pump. The circulating water pump is the power device that drives the cooling water to circulate between the water-cooled condenser in the refrigeration circuit and the external water body in the water-cooled condensation heat exchange path. After the circulating water pump is turned on, the cooling water is drawn into the external water body through the water-cooled heat exchange pipeline under the drive of the pump. After flowing through the water-cooled condenser and exchanging heat with the high-temperature and high-pressure refrigerant in the refrigeration circuit, the water body that has absorbed the condensation heat is discharged back to the external water body, thus formally establishing the water circulation. By using the external water body as the condensation heat exchange medium, the water-cooled condensation heat exchange path can give full play to the physical advantages of water's large specific heat capacity and stable temperature, achieving efficient condensation heat exchange. At the same time, since the condensation heat is directly discharged into the water body instead of being discharged through hot air, the generation of infrared heat plumes is effectively eliminated, ensuring the vehicle's infrared stealth performance in water conditions. Thus, the air conditioning system completes the smooth transition from air-cooled heat dissipation to water-cooled heat dissipation, completing the entire process of entering the water surface mode.

[0050] In one embodiment, step S103 further includes: The determination result of the transition mode is sent to the cockpit interactive terminal and it is determined whether the returned instruction is a rejection instruction. If so, the original state is maintained; if not, the transition mode is entered and the transition mode execution instruction is obtained. According to the transition mode execution command, the current heat dissipation path is maintained within a preset range, the compressor frequency is reduced, and the opening change rate of the electronic expansion valve is limited, thus completing the process of entering the transition mode.

[0051] In this embodiment, the determination result of the transition mode is sent to the cockpit interactive terminal, and it is determined whether the returned instruction is a rejection instruction. If so, the original state is maintained; if not, the transition mode is entered, and the transition mode execution instruction is obtained. When the filtered draft depth signal S w The comparison with the preset safety depth threshold H1 within the preset continuous stability time window T wIf the system fails to maintain stability, meaning the triggering conditions for the land and water modes are not met, the main controller determines that the vehicle is in an uncertain transitional state between land and water conditions, identifying the target cooling mode as the transitional mode. Before entering transitional mode, the main controller sends the transitional mode determination result to the cockpit interface terminal, informing the driver that the current operating conditions have not yet met the stable triggering conditions for the land or water modes, and the system is about to enter transitional mode. Upon receiving this notification, the cockpit interface terminal presents the determination result to the driver and awaits their response. The main controller then determines whether the instruction returned by the cockpit interface terminal is a rejection instruction. If the driver explicitly issues a rejection instruction through the cockpit interface terminal, indicating that the driver does not agree to enter transitional mode based on the current combat situation or mission requirements, the main controller maintains the current operating state of the air conditioning system. If the driver does not intervene or does not provide feedback within the preset observation time, the main controller defaults to entering transitional mode and generates transitional mode execution instructions. The transition mode execution command serves as a trigger signal for subsequent execution of device limiting and protection actions under the transition mode, driving the system into a protective operating state with the core objective of protecting the cooling cycle.

[0052] Furthermore, according to the transition mode execution command, the current heat dissipation path is maintained within a preset range, and the compressor frequency is reduced and the rate of change of the electronic expansion valve opening is limited, thus completing the process of entering the transition mode. After receiving the transition mode execution command, the system main controller maintains the current heat dissipation path within the preset range; that is, the air conditioning system does not perform a switching operation on the currently operating heat dissipation path. Regardless of whether the currently operating path is an air-cooled condensing heat exchange path or a water-cooled condensing heat exchange path, the heat dissipation path continues to operate, and the changes in the operating state of each component do not exceed the preset allowable range. The reason for maintaining the current heat dissipation path without significant switching is that the operating condition characteristic corresponding to the transition mode is the filtered draft depth signal S. w With the preset continuous stability time window T wThe signal combination has not yet converged to meet the stable trigger threshold of the land mode or water mode. The vehicle may be in a beach area at the boundary between land and water or in a bumpy state on the water, and the operating conditions are highly uncertain. If the heat dissipation path is switched at this stage, the frequent switching of the heat dissipation path may occur due to the reversal of the operating conditions at any time, causing repeated impacts on the refrigeration cycle of the air conditioning system and affecting the stability and reliability of the system operation. While maintaining the current heat dissipation path, the system main controller simultaneously applies limiting and protective measures to the key operating parameters in the refrigeration circuit. On the one hand, the system main controller reduces the compressor frequency, that is, reduces the compressor's operating frequency from the current value to a lower protective operating frequency level. By reducing the compressor's refrigeration output power, the heat load of the refrigeration circuit is reduced, thereby reducing the heat dissipation pressure of the condenser, so that the refrigeration cycle can operate smoothly at a lower load level during the transition phase when the heat dissipation capacity is uncertain. On the other hand, the system's main controller limits the opening change rate of the Electronic Expansion Valve (EEV), that is, sets an upper limit constraint on the allowable adjustment range of the EEV's opening within a unit of time. This prevents the EEV from experiencing large opening jumps during the transition phase due to fluctuations in operating conditions, thereby avoiding the impact of drastic fluctuations in refrigerant flow on the evaporation and condensation pressures of the refrigeration cycle. Through the dual limiting and protection measures of reducing compressor frequency and limiting the opening change rate of the EEV, the air conditioning system operates smoothly in a low-load, low-fluctuation protective state during the transition mode, effectively protecting the refrigeration cycle from the impact of uncertain operating conditions. During the transition mode operation, the system continuously executes the operating condition signal acquisition in step S101 and the mode determination process in step S102, and monitors the filtered draft depth signal S in real time. w With the preset continuous stability time window T w The signal state until S w With T w Once the signal meets the stable trigger threshold for the water surface mode or the land mode, the system performs the corresponding mode reconstruction and switches to the corresponding target heat dissipation mode. This completes the entire process of entering the transition mode.

[0053] Furthermore, after entering the corresponding mode, step S104, namely mode looping and continuous monitoring, can be executed. After the air conditioning system enters the target heat dissipation mode determined in step S103 and completes the corresponding heat dissipation path switching and device adjustment, the system does not terminate the operating condition monitoring process. Instead, it can continue to run the multi-dimensional operating condition signal real-time acquisition and multi-channel verification process in real time to continuously detect the vehicle's operating status. While the air conditioning system is stably operating in the current target heat dissipation mode, the system main controller continuously acquires the vehicle's operating condition parameters under the current working surface through the multi-channel analog signal acquisition interface, including the filtered draft depth signal, control mode status signal, and condensing pressure signal. It also verifies the above multi-channel signals and updates the operating condition signal set in real time. The updated operating condition signal set then enters the mode determination process in step S102. The system main controller compares the current operating condition signal with the preset threshold and combines it with the preset continuous stability time window to confirm the continuity of the operating condition in order to determine whether the current vehicle's operating environment has changed. If the modal determination result is consistent with the currently operating target heat dissipation mode, the system main controller maintains the current heat dissipation mode and continues to operate without performing any switching actions. If the modal determination result indicates that the vehicle operating conditions have changed and the new target heat dissipation mode is different from the current operating mode, the system main controller re-enters step S103 and performs corresponding heat dissipation path switching and device control operations according to the newly determined target heat dissipation mode. Through the cyclic control mechanism consisting of steps S101 to S104, the air conditioning system continuously monitors and dynamically responds to the vehicle operating conditions in real time throughout the entire operating cycle, ensuring that the heat dissipation mode is always matched with the current operating environment of the vehicle. This allows the air conditioning system to smoothly switch between land mode, water mode, and transition mode according to changes in operating conditions during the amphibious vehicle's mission, ensuring efficient heat exchange and stable operation of the air conditioning system under all operating conditions.

[0054] In summary, the heat dissipation control method provided by this invention initializes the air conditioning system in response to an air conditioning start command and collects the vehicle's operating condition signals. It compares these signals with preset thresholds to determine the target heat dissipation mode and performs heat dissipation path switching and device regulation based on the target heat dissipation mode. This achieves a heat dissipation control method for amphibious operation mode switching. Unlike existing air conditioning systems that use a single heat dissipation method or a fixed operating mode, this invention uses changes in vehicle operating conditions as the control object. Addressing the abrupt changes in heat dissipation conditions during entry, amphibious special operations vehicles' entry into, floating, and exiting the water, it can switch the air conditioning condensation heat dissipation mode according to changes in operating conditions. Simultaneously, by comparing the filtered draft depth signal in the operating condition signals with a preset threshold and combining this with a preset continuous stability time window for operating condition continuity confirmation, a heat dissipation mode switching determination mechanism based on draft status is introduced. By acquiring vehicle draft and other operating condition information, it determines whether the vehicle has entered a water area, thereby triggering a decision to switch the air conditioning condensation heat dissipation mode, thus changing the heat dissipation mode. Matching the actual operating environment of the vehicle, the system's adaptability to complex operating conditions is improved. Furthermore, by shutting down the circulating water pump, controlling the electronic expansion valve's compensation opening, and starting the condenser fan for air cooling in land mode, and shutting off the condenser fan, controlling the electronic expansion valve's contraction opening, and starting the circulating water pump for water cooling in water mode, coordinated switching control of air cooling and water cooling methods is achieved. Coordinated control of the two cooling methods during the transition between land and water conditions avoids the decrease in cooling effect and system instability caused by sudden changes in operating conditions. In addition, by maintaining the current cooling path and limiting the compressor frequency and electronic expansion valve opening for protection in transition mode, and by introducing a feedforward compensation or contraction adjustment and delay confirmation mechanism for the electronic expansion valve during the transition between land and water modes, a cooling switching strategy that balances system continuity and controllability is achieved. This ensures the continuous operation and stable state of the air conditioning system during the cooling mode switching process, while retaining the space for driver intervention, meeting the controllability and safety requirements of special operations vehicles.

[0055] Combination Figure 3 As shown, Figure 3 This is a schematic block diagram of a heat dissipation control device provided in an embodiment of the present invention. The heat dissipation control device 300 includes: The data initialization unit 301 is used to respond to the air conditioning start command, control the air conditioning system to initialize, and collect the vehicle's operating condition signals. The data comparison unit 302 is used to compare the operating condition signal with a preset threshold to determine the target heat dissipation mode; The mode determination unit 303 is used to perform heat dissipation path switching and device regulation according to the target heat dissipation mode; wherein, if the target heat dissipation mode is the land mode, the circulating water pump is shut down, the electronic expansion valve compensation opening is controlled, and the condenser fan is started after a delay confirmation; if the target heat dissipation mode is the water surface mode, the condenser fan is shut off, the electronic expansion valve contraction opening is controlled, and the circulating water pump is started after a delay confirmation; if the target heat dissipation mode is the transition mode, the current heat dissipation path is maintained and the compressor frequency and electronic expansion valve opening are limited and protected.

[0056] In this embodiment, the data initialization unit 301 responds to the air conditioning start command, controls the air conditioning system to initialize, and collects the vehicle's operating condition signals; the data comparison unit 302 compares the operating condition signals with a preset threshold to determine the target heat dissipation mode; the mode determination unit 303 performs heat dissipation path switching and device regulation according to the target heat dissipation mode; wherein, if the target heat dissipation mode is the land mode, the circulating water pump is shut down, the electronic expansion valve compensation opening is controlled, and the condenser fan is started after a delay confirmation; if the target heat dissipation mode is the water surface mode, the condenser fan is cut off, the electronic expansion valve contraction opening is controlled, and the circulating water pump is started after a delay confirmation; if the target heat dissipation mode is the transition mode, the current heat dissipation path is maintained and the compressor frequency and electronic expansion valve opening are limited and protected.

[0057] In one embodiment, the data initialization unit 301 is specifically used for: Upon receiving the air conditioner start command, the system is controlled to enter the initialization state and the sensor power is simultaneously turned on to obtain the sensor power-on status information. Based on the power-on status information of the sensor, the key parameters of the air conditioning system are pre-scanned to obtain the key parameter scanning results. Based on the scan results of the key parameters, the standby compliance status of the compressor and electronic expansion valve is confirmed through a preset self-test program to obtain initialization information.

[0058] In one embodiment, the data initialization unit 301 is further specifically used for: The vehicle's operating parameters under different working surfaces are captured in real time through a multi-channel analog signal acquisition interface to obtain multi-channel raw acquisition signals. Read the draft depth signal from the original multi-channel acquisition signal, and use a digital filtering algorithm to remove noise from the draft depth signal to obtain the filtered draft depth signal. Read the level status signal in the multi-channel raw acquisition signal, and determine whether the air conditioning system is in automatic mode or manual intervention mode based on the level status signal to obtain the control mode status signal; The condensing pressure signal is obtained by reading the pressure signal fed back by the condensing pressure sensor from the multi-channel raw acquisition signal. The filtered draft depth signal, the control mode status signal, and the condensation pressure signal are subjected to multi-channel verification processing and integrated to obtain the operating condition signal set.

[0059] In one embodiment, the data comparison unit 302 is specifically used for: The filtered draft signal is extracted from the operating condition signal, and the filtered draft signal is compared with a preset safe depth threshold to obtain the depth comparison result. The depth comparison results are combined with a preset continuous stability time window for continuous operation condition confirmation, and the target heat dissipation mode is determined according to preset mode determination rules. The mode determination rules include: when the filtered draft depth signal is less than the preset safe depth threshold and the duration is greater than the preset continuous stability time window, it is determined that the conditions for switching to the land mode are met, and the target heat dissipation mode is determined to be the land mode; when the filtered draft depth signal is greater than or equal to the preset safe depth threshold and the duration is greater than the preset continuous stability time window, it is determined that the vehicle has entered the water area operation condition, and the target heat dissipation mode is determined to be the water surface mode; when the triggering conditions for the land mode and the water surface mode are not met, the target heat dissipation mode is determined to be a transition mode.

[0060] In one embodiment, the modal determination unit 303 is specifically used for: The determination result of the land mode is sent to the cockpit interactive terminal and it is determined whether the returned instruction is a rejection instruction. If so, the status quo is maintained; otherwise, the land operation mode is entered and the land mode execution instruction is obtained. The circulating water pump is forcibly shut down according to the land mode execution command, and the circulating water pump stop signal and pipeline residual pressure are monitored; The electronic expansion valve is controlled to initiate a feedforward compensation program based on the current ambient temperature to actively increase the opening of the electronic expansion valve; After the delay confirmation period ends, the condenser fan is started to complete the process of entering the land mode.

[0061] In one embodiment, the modal determination unit 303 is further specifically used for: The determination result of the water surface mode is sent to the cockpit interactive terminal and it is determined whether the returned instruction is a rejection instruction. If so, the original state is maintained; if not, the water surface operation mode is entered and the water surface mode execution instruction is obtained. According to the water surface mode execution command, the condenser fan is turned off at the optimal response level, and the power supply to the condenser fan is cut off. The thermal state regulation program is activated to control the electronic expansion valve to perform feedforward adjustment based on the real-time collected water temperature data, so as to actively reduce the opening of the electronic expansion valve. After the delay confirmation is completed, the circulating water pump is turned on to establish water circulation and use external water for condensation and heat exchange, thus completing the process of entering the water surface mode.

[0062] In one embodiment, the modal determination unit 303 is further specifically used for: The determination result of the transition mode is sent to the cockpit interactive terminal and it is determined whether the returned instruction is a rejection instruction. If so, the original state is maintained; if not, the transition mode is entered and the transition mode execution instruction is obtained. According to the transition mode execution command, the current heat dissipation path is maintained within a preset range, the compressor frequency is reduced, and the opening change rate of the electronic expansion valve is limited, thus completing the process of entering the transition mode.

[0063] Since the embodiments of the apparatus and the embodiments of the method correspond to each other, please refer to the description of the embodiments of the method for the embodiments of the apparatus, which will not be repeated here.

[0064] This invention also provides a heat dissipation control system, including the heat dissipation control device described above.

[0065] This invention also provides an air conditioner, which may include a memory and a processor. The memory stores a computer program, and when the processor calls the computer program in the memory, it can implement the steps provided in the above embodiments. Of course, the computer device may also include various network interfaces, a power supply, a graphics card, etc., to utilize the graphics card's performance to operate the model, such as for inference and training.

[0066] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the systems disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple; relevant parts can be referred to in the method section. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

[0067] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A heat dissipation control method, applied to the air conditioning of an amphibious vehicle, characterized in that, include: In response to the air conditioning turn-on command, the system initializes and collects the vehicle's operating condition signals. The operating condition signal is compared with a preset threshold to determine the target heat dissipation mode; According to the target heat dissipation mode, the heat dissipation path is switched and the device is controlled; wherein, if the target heat dissipation mode is the land mode, the circulating water pump is shut down, the electronic expansion valve is controlled to compensate the opening, and the condenser fan is started after a delay confirmation. If the target heat dissipation mode is the water surface mode, the condenser fan is shut off, the electronic expansion valve is controlled to contract, and the circulating water pump is started after a delay confirmation; if the target heat dissipation mode is the transition mode, the current heat dissipation path is maintained and the compressor frequency and electronic expansion valve opening are limited and protected.

2. The heat dissipation control method according to claim 1, characterized in that, The initialization of the air conditioning system in response to the air conditioning start command includes: Upon receiving the air conditioner start command, the system is controlled to enter the initialization state and the sensor power is simultaneously turned on to obtain the sensor power-on status information. Based on the power-on status information of the sensor, the key parameters of the air conditioning system are pre-scanned to obtain the key parameter scanning results. Based on the scan results of the key parameters, the standby compliance status of the compressor and electronic expansion valve is confirmed through a preset self-test program to obtain initialization information.

3. The heat dissipation control method according to claim 1, characterized in that, The collected vehicle operating condition signals include: The vehicle's operating parameters under different working surfaces are captured in real time through a multi-channel analog signal acquisition interface to obtain multi-channel raw acquisition signals. Read the draft depth signal from the original multi-channel acquisition signal, and use a digital filtering algorithm to remove noise from the draft depth signal to obtain the filtered draft depth signal. Read the level status signal in the multi-channel raw acquisition signal, and determine whether the air conditioning system is in automatic mode or manual intervention mode based on the level status signal to obtain the control mode status signal; The condensing pressure signal is obtained by reading the pressure signal fed back by the condensing pressure sensor from the multi-channel raw acquisition signal. The filtered draft depth signal, the control mode status signal, and the condensation pressure signal are subjected to multi-channel verification processing and integrated to obtain the operating condition signal set.

4. The heat dissipation control method according to claim 1, characterized in that, The step of comparing the operating condition signal with a preset threshold to determine the target heat dissipation mode includes: The filtered draft signal is extracted from the operating condition signal, and the filtered draft signal is compared with a preset safe depth threshold to obtain the depth comparison result. The depth comparison results are combined with a preset continuous stability time window for continuous operation condition confirmation, and the target heat dissipation mode is determined according to preset mode determination rules. The mode determination rules include: when the filtered draft depth signal is less than the preset safe depth threshold and the duration is greater than the preset continuous stability time window, it is determined that the conditions for switching to the land mode are met, and the target heat dissipation mode is determined to be the land mode; when the filtered draft depth signal is greater than or equal to the preset safe depth threshold and the duration is greater than the preset continuous stability time window, it is determined that the vehicle has entered the water area operation condition, and the target heat dissipation mode is determined to be the water surface mode; when the triggering conditions for the land mode and the water surface mode are not met, the target heat dissipation mode is determined to be a transition mode.

5. The heat dissipation control method according to claim 1, characterized in that, If the target heat dissipation mode is the land mode, then the circulating water pump is shut down, the electronic expansion valve is controlled to compensate for the opening, and the condenser fan is started after a delay confirmation, including: The determination result of the land mode is sent to the cockpit interactive terminal and it is determined whether the returned instruction is a rejection instruction. If so, the status quo is maintained; otherwise, the land operation mode is entered and the land mode execution instruction is obtained. The circulating water pump is forcibly shut down according to the land mode execution command, and the circulating water pump stop signal and pipeline residual pressure are monitored; The electronic expansion valve is controlled to initiate a feedforward compensation program based on the current ambient temperature to actively increase the opening of the electronic expansion valve; After the delay confirmation period ends, the condenser fan is started to complete the process of entering the land mode.

6. The heat dissipation control method according to claim 1, characterized in that, If the target heat dissipation mode is the water surface mode, then the condenser fan is shut off, the electronic expansion valve is controlled to contract, and the circulating water pump is started after a delay confirmation, including: The determination result of the water surface mode is sent to the cockpit interactive terminal and it is determined whether the returned instruction is a rejection instruction. If so, the original state is maintained; if not, the water surface operation mode is entered and the water surface mode execution instruction is obtained. According to the water surface mode execution command, the condenser fan is turned off at the optimal response level, and the power supply to the condenser fan is cut off. The thermal state regulation program is activated to control the electronic expansion valve to perform feedforward adjustment based on the real-time collected water temperature data, so as to actively reduce the opening of the electronic expansion valve. After the delay confirmation is completed, the circulating water pump is turned on to establish water circulation and use external water for condensation and heat exchange, thus completing the process of entering the water surface mode.

7. The heat dissipation control method according to claim 1, characterized in that, If the target heat dissipation mode is a transitional mode, then the current heat dissipation path is maintained and the compressor frequency and electronic expansion valve opening are limited and protected, including: The determination result of the transition mode is sent to the cockpit interactive terminal and it is determined whether the returned instruction is a rejection instruction. If so, the original state is maintained; if not, the transition mode is entered and the transition mode execution instruction is obtained. According to the transition mode execution command, the current heat dissipation path is maintained within a preset range, the compressor frequency is reduced, and the opening change rate of the electronic expansion valve is limited, thus completing the process of entering the transition mode.

8. A heat dissipation control device, applied to the air conditioning of an amphibious vehicle, characterized in that, include: The data initialization unit is used to respond to the air conditioning start command, control the air conditioning system to initialize, and collect the vehicle's operating condition signals. The data comparison unit is used to compare the operating condition signal with a preset threshold to determine the target heat dissipation mode; The mode determination unit is used to perform heat dissipation path switching and device regulation according to the target heat dissipation mode; wherein, if the target heat dissipation mode is the land mode, the circulating water pump is shut down, the electronic expansion valve is controlled to compensate the opening, and the condenser fan is started after a delay confirmation. If the target heat dissipation mode is the water surface mode, the condenser fan is shut off, the electronic expansion valve is controlled to contract, and the circulating water pump is started after a delay confirmation; if the target heat dissipation mode is the transition mode, the current heat dissipation path is maintained and the compressor frequency and electronic expansion valve opening are limited and protected.

9. A heat dissipation control system, characterized in that, Includes the heat dissipation control device as described in claim 8.

10. An air conditioner, characterized in that, It includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the heat dissipation control method as described in any one of claims 1 to 7.

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