CN-121973597-A - Heat dissipation control method, device and system and air conditioner

CN121973597ACN 121973597 ACN121973597 ACN 121973597ACN-121973597-A

Abstract

The invention discloses a heat dissipation control method, a device, a system and an air conditioner, wherein the method is applied to the air conditioner of an amphibious vehicle and comprises the steps of comparing an acquired working condition signal with a preset threshold value, stopping a circulating water pump when a land mode is judged to be entered, controlling the compensation opening of an electronic expansion valve, starting a condensing fan after delay confirmation, cutting off the condensing fan when a water surface mode is entered, controlling the electronic expansion valve to shrink the opening, starting the circulating water pump after delay confirmation, and maintaining a heat dissipation path and limiting and protecting the frequency of a compressor and the opening of the electronic expansion valve when the water surface mode is entered. According to the invention, the land mode, the water surface mode or the transition mode is automatically determined as the target heat dissipation mode by collecting the working condition signals and comparing the working condition signals with the preset threshold, and then corresponding heat dissipation path switching and device regulating strategies are executed aiming at different target heat dissipation modes, so that the problem that the air conditioning system of the existing vehicle cannot adaptively regulate the heat dissipation mode between the land working condition and the water area working condition is solved.

Inventors

LIU CHUANKAI
JIN PENG
PAN LIPING
ZHU WEIMING

Assignees

珠海格力电器股份有限公司

Dates

Publication Date: 20260505
Application Date: 20260331

Claims (10)

1. A heat dissipation control method applied to an air conditioner of an amphibious vehicle, comprising: responding to an air conditioner starting instruction, controlling an air conditioner system to initialize, and collecting working condition signals of a vehicle; comparing the working condition signal with a preset threshold value to determine a target heat dissipation mode; The method comprises the steps of executing heat dissipation path switching and device regulation according to a target heat dissipation mode, stopping a circulating water pump if the target heat dissipation mode is a land mode, controlling an electronic expansion valve to compensate opening, starting a condensing fan after delay confirmation, stopping the condensing fan if the target heat dissipation mode is a water surface mode, controlling the electronic expansion valve to shrink the opening, starting the circulating water pump after delay confirmation, and maintaining a current heat dissipation path and limiting and protecting the frequency of a compressor and the opening of the electronic expansion valve if the target heat dissipation mode is a transitional mode.
2. The heat dissipation control method according to claim 1, wherein the controlling the air conditioning system to initialize in response to the air conditioning on command comprises: After receiving the air conditioner starting instruction, controlling an air conditioning system to enter an initialized state, and synchronously switching on a sensor power supply to obtain sensor power-on state information; Based on the sensor power-on state information, pre-scanning key parameters of the air conditioning system to obtain a key parameter scanning result; and respectively confirming the standby compliance states of the compressor and the electronic expansion valve through a preset self-checking program according to the key parameter scanning result to obtain initialization information.
3. The method of claim 1, wherein the collecting the operating condition signal of the vehicle comprises: Capturing working condition parameters of the vehicle under different working surfaces in real time through a multichannel analog quantity acquisition interface to obtain multichannel original acquisition signals; Reading draft signals in the multichannel original acquisition signals, and carrying out noise elimination processing on the draft signals by using a digital filtering algorithm to obtain filtered draft signals; reading a level state signal in the multichannel original acquisition signal, and judging whether the air conditioning system is in an automatic mode or a manual intervention mode according to the level state signal to obtain a control mode state signal; reading a pressure signal fed back by a condensing pressure sensor in the multichannel original acquisition signal to obtain a condensing pressure signal; And carrying out multipath verification processing on the filtered draft signal, the control mode state signal and the condensing pressure signal, and integrating to obtain a working condition signal set.
4. The heat dissipation control method according to claim 1, wherein the comparing the operating mode signal with a preset threshold to determine a target heat dissipation mode includes: extracting a filtered draft signal from the working condition signal, and comparing the filtered draft signal with a preset safe depth threshold value to obtain a depth comparison result; And carrying out working condition persistence confirmation processing on the depth comparison result in combination with a preset continuous stability time window, and determining a target heat dissipation mode according to a preset mode determination rule, wherein the mode determination rule comprises that when the filtered draft signal is smaller than the preset safe depth threshold value and the duration time is larger than the preset continuous stability time window, the condition of switching to a land mode is determined, the target heat dissipation mode is determined to be the land mode, when the filtered draft signal is larger than or equal to the preset safe depth threshold value and the duration time is larger than the preset continuous stability time window, the condition that a vehicle enters a water area is determined, the target heat dissipation mode is determined to be the water surface mode, and when the triggering conditions of the land mode and the water surface mode are not met, the target heat dissipation mode is determined to be the transition mode.
5. The heat dissipation control method according to claim 1, wherein if the target heat dissipation mode is a land mode, turning off a circulating water pump, controlling a compensation opening of an electronic expansion valve, and starting a condensing fan after a delay confirmation, comprising: The land mode judging result is sent to the cockpit interaction terminal and judges whether the returned instruction is a refusing instruction, if so, the original state is maintained, and if not, a land operation mode is entered to obtain a land mode executing instruction; Forcibly turning off the circulating water pump according to the land mode execution instruction, and monitoring a stop signal of the circulating water pump and the residual pressure of a pipeline; Controlling the electronic expansion valve to start a feedforward compensation program according to the current ambient temperature so as to actively increase the opening of the electronic expansion valve; and after the delay confirmation is finished, starting the condensing fan to finish the process of entering the land mode.
6. The heat dissipation control method according to claim 1, wherein if the target heat dissipation mode is a water surface mode, cutting off the condensing fan, controlling the electronic expansion valve to shrink the opening, and starting the circulating water pump after the delay confirmation, comprising: The judgment result of the water surface mode is sent to the cockpit interaction terminal and whether the returned instruction is a refusing instruction is judged, if yes, the original state is maintained, and if not, a water surface operation mode is entered to obtain a water surface mode execution instruction; Setting the closed condensing fan as an optimal response level according to the water surface modal execution instruction, and simultaneously cutting off the power supply of the condensing fan; starting a thermodynamic state adjusting program, and controlling the electronic expansion valve to perform feedforward adjustment according to water temperature data acquired in real time so as to actively shrink the opening of the electronic expansion valve; after the delay confirmation is finished, the circulating water pump is started, waterway circulation is established, and the external water body is utilized for condensation heat exchange, so that the process of entering the water surface mode is completed.
7. The heat dissipation control method according to claim 1, wherein if the target heat dissipation mode is a transitional mode, maintaining a current heat dissipation path and performing a limit protection process on a compressor frequency and an electronic expansion valve opening, includes: The judging result of the transition mode is sent to the cockpit interaction terminal and whether the returned instruction is a refusing instruction is judged, if yes, the original state is maintained, and if not, the transition mode is entered to obtain a transition mode executing instruction; And maintaining the current heat dissipation path within a preset range according to the transition mode execution instruction, reducing the frequency of the compressor and limiting the opening change rate of the electronic expansion valve, and completing the process of entering the transition mode.
8. A heat dissipation control apparatus applied to an air conditioner of an amphibious vehicle, comprising: The data initialization unit is used for responding to the air conditioner starting instruction, controlling the air conditioner system to initialize and collecting working condition signals of the vehicle; The data comparison unit is used for comparing the working condition signals with a preset threshold value to determine a target heat dissipation mode; The mode judging unit is used for executing heat dissipation path switching and device regulation according to the target heat dissipation mode, wherein if the target heat dissipation mode is a land mode, the circulating water pump is turned off, the electronic expansion valve is controlled to compensate the opening degree, the condensing fan is started after delay confirmation, if the target heat dissipation mode is a water surface mode, the condensing fan is cut off, the electronic expansion valve is controlled to contract the opening degree, the circulating water pump is started after delay confirmation, and if the target heat dissipation mode is a transitional mode, the current heat dissipation path is maintained, and the frequency of the compressor and the opening degree of the electronic expansion valve are limited and protected.
9. A heat dissipation control system comprising the heat dissipation control apparatus according to claim 8.
10. An air conditioner comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the heat dissipation control method according to any one of claims 1 to 7 when executing the computer program.

Description

Heat dissipation control method, device and system and air conditioner Technical Field The present invention relates to the field of heat exchange adjustment technologies, and in particular, to a heat dissipation control method, device, system, and air conditioner. Background The existing air conditioning system of amphibious special combat vehicle mostly adopts the technical route of conventional land vehicles or armored vehicles, and generally adopts a single air-cooled condensing and radiating structure, namely, the condenser is radiated by an air convection mode. When the vehicle is in a land running state, the air cooling heat dissipation mode can rely on natural wind or forced ventilation of a fan to complete heat exchange. However, when the vehicle enters a water area and is in working conditions such as low-speed floating, semi-submerged floating or static floating, the external air flow condition of the vehicle is remarkably deteriorated, part of the heat dissipation channels may be covered or blocked by water, so that the heat dissipation efficiency of the condenser is reduced, the condensation pressure is increased, and the refrigerating capacity of the air conditioning system is reduced. Meanwhile, the water area environment has the characteristics of large specific heat capacity and stable temperature, and if the external water body can be used as a condensing heat exchange medium, higher heat exchange efficiency can be obtained. However, the existing air conditioning system lacks integration of a water-cooling condensation heat exchange path on a heat dissipation framework, and cannot adaptively adjust a heat dissipation mode between a land working condition and a water working condition. For example, the patent with publication number CN110816256 a discloses an external heat exchange system for an amphibious vehicle, and the scheme mainly aims at the problem of engine cooling, but does not relate to the mode switching control requirement of an air conditioner heat dissipation system under different operation conditions, and does not provide a technical means for automatically identifying the operation conditions according to the real-time operation state of the vehicle and executing heat dissipation path switching and device cooperative regulation. Disclosure of Invention The embodiment of the invention provides a heat dissipation control method, a heat dissipation control device, a heat dissipation control system and an air conditioner, and aims to solve the technical problem that an existing amphibious vehicle air conditioning system in the prior art cannot adaptively adjust a heat dissipation mode between land working conditions and water working conditions. In a first aspect, an embodiment of the present invention provides a heat dissipation control method applied to an air conditioner of an amphibious vehicle, including: responding to an air conditioner starting instruction, controlling an air conditioner system to initialize, and collecting working condition signals of a vehicle; comparing the working condition signal with a preset threshold value to determine a target heat dissipation mode; The method comprises the steps of executing heat dissipation path switching and device regulation according to a target heat dissipation mode, stopping a circulating water pump if the target heat dissipation mode is a land mode, controlling an electronic expansion valve to compensate opening, starting a condensing fan after delay confirmation, stopping the condensing fan if the target heat dissipation mode is a water surface mode, controlling the electronic expansion valve to shrink the opening, starting the circulating water pump after delay confirmation, and maintaining a current heat dissipation path and limiting and protecting the frequency of a compressor and the opening of the electronic expansion valve if the target heat dissipation mode is a transitional mode. In a second aspect, an embodiment of the present invention provides a heat dissipation control device applied to an air conditioner of an amphibious vehicle, including: The data initialization unit is used for responding to the air conditioner starting instruction, controlling the air conditioner system to initialize and collecting working condition signals of the vehicle; The data comparison unit is used for comparing the working condition signals with a preset threshold value to determine a target heat dissipation mode; The mode judging unit is used for executing heat dissipation path switching and device regulation according to the target heat dissipation mode, wherein if the target heat dissipation mode is a land mode, the circulating water pump is turned off, the electronic expansion valve is controlled to compensate the opening degree, the condensing fan is started after delay confirmation, if the target heat dissipation mode is a water surface mode, the condensing fan is cut off, the electronic expansion valve is controlled to c