CN-119704982-B - Air conditioner cold air prevention control method and device and vehicle

CN119704982BCN 119704982 BCN119704982 BCN 119704982BCN-119704982-B

Abstract

The application relates to the technical field of vehicles, in particular to an air conditioner cold air prevention control method, an air conditioner cold air prevention control device and a vehicle, wherein the method comprises the steps of obtaining the current ambient temperature; if the current ambient temperature is lower than the preset temperature, when the vehicle has a heating requirement, acquiring the current engine water temperature of the vehicle, determining the target engine speed and the target cold air prevention strategy according to the current engine water temperature, adjusting the engine speed of the vehicle to the target speed, and performing air conditioner cold air prevention control based on the target cold air prevention strategy. Therefore, the problem that the user experience is reduced due to the fact that the background technology lacks of fine control is solved, and the comfort level of the user is improved while energy is saved through a remote preheating and fine cold air prevention control strategy.

Inventors

YU MEILING
CHEN CHAOPING
ZHANG MIAO
LIU QINGLONG
YOU YE
ZHANG TIANHAO

Assignees

北汽福田汽车股份有限公司

Dates

Publication Date: 20260508
Application Date: 20241115

Claims (4)

1. The cold air prevention control method of the air conditioner is characterized by comprising the following steps of: Acquiring the current ambient temperature; If the current ambient temperature is lower than a preset temperature, when a heating requirement exists on the vehicle, acquiring the current engine water temperature of the vehicle, and determining an engine target rotating speed and a target cold air prevention strategy according to the current engine water temperature; adjusting the rotating speed of an engine of the vehicle to the target rotating speed, and performing air conditioner cold air prevention control based on the target cold air prevention strategy; After determining that the current ambient temperature is lower than the preset temperature, the method further comprises: sending an air conditioner heating request instruction to a preset mobile terminal, and judging whether a confirmation instruction sent by a user based on the air conditioner heating request instruction is received or not; if a confirmation instruction sent by the user based on the air-conditioning heating request instruction is received, judging that the heating requirement exists on the vehicle; the determining the target engine speed and the target cold air prevention strategy according to the current engine water temperature comprises the following steps: Determining a user demand temperature based on the confirmation instruction; calculating a temperature difference value between the current engine water temperature and the user demand temperature, and determining the target engine speed, the target air quantity of the current vehicle-mounted air conditioner, a target blowing mode and a target circulation mode according to a temperature interval where the temperature difference value is located; the target rotating speed of the engine is inversely related to the current temperature interval; Determining a user demand temperature based on a confirmation instruction, calculating a difference value between a current engine water temperature and the user demand temperature, judging whether the difference value between the current engine water temperature and the user demand temperature is larger than or equal to a first preset threshold value, judging whether the difference value between the current engine water temperature and the user demand temperature is smaller than a second preset threshold value, and if the difference value between the current engine water temperature and the user demand temperature is larger than or equal to the first preset threshold value, and the difference value between the current engine water temperature and the user demand temperature is smaller than the second preset threshold value, taking a second target cold air prevention strategy as a target running mode, controlling the rotating speed of an engine of the vehicle to be regulated to a second target rotating speed, and controlling the current vehicle-mounted air conditioner to run based on the second target cold air prevention strategy, wherein the second target rotating speed is smaller than the first target rotating speed, and the air output of the second target cold prevention strategy is larger than the air output of the first target cold prevention strategy; If the difference value between the current engine water temperature and the user demand temperature is smaller than a third preset threshold value, taking a third target cold air prevention strategy as a target running mode, controlling the rotating speed of the engine of the vehicle to be regulated to a third target rotating speed, and controlling the current vehicle-mounted air conditioner to run based on the third target cold air prevention strategy, wherein the third preset threshold value is larger than a second preset threshold value, and the third target rotating speed is smaller than the second target rotating speed; If the difference value between the current engine water temperature and the user demand temperature is greater than or equal to a third preset threshold value, a fourth target cold air prevention strategy is used as a target operation mode, the rotation speed of the engine of the vehicle is controlled to be adjusted to the fourth target rotation speed, the current vehicle-mounted air conditioner is controlled to operate based on the fourth target cold air prevention strategy, and when the operation duration of the current vehicle-mounted air conditioner reaches the heating duration corresponding to the user demand temperature, a remote heating execution completion notification prompt is carried out on the user.
2. The method of claim 1, wherein when performing air conditioner anti-cold air control based on the target anti-cold air strategy, further comprising: acquiring heating time length corresponding to the user demand temperature; Judging whether the current running time of the vehicle-mounted air conditioner reaches the heating time corresponding to the user demand temperature; And if the running time of the current vehicle-mounted air conditioner reaches the heating time corresponding to the user demand temperature, closing the current vehicle-mounted air conditioner.
3. An air conditioner cold air prevention control apparatus for performing the air conditioner cold air prevention control method according to any one of claims 1 to 2, comprising: The acquisition module is used for acquiring the current environment temperature; The determining module is used for acquiring the current engine water temperature of the vehicle when the current environment temperature is lower than a preset temperature and the vehicle has a heating requirement, and determining an engine target rotating speed and a target cold air prevention strategy according to the current engine water temperature; and the control module is used for adjusting the rotating speed of the engine of the vehicle to the target rotating speed and performing air conditioner cold air prevention control based on the target cold air prevention strategy.
4. A vehicle comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the program to implement the air conditioner cold wind prevention control method according to any one of claims 1-2.

Description

Air conditioner cold air prevention control method and device and vehicle Technical Field The application relates to the technical field of vehicles, in particular to an air conditioner cold air prevention control method and device and a vehicle. Background With the popularization of automobiles, the requirements of people on riding experience are continuously improved, particularly in cold winter, when the automobile is parked outdoors, the temperature in the automobile can be very low, and although the temperature in the automobile can be improved by starting the maximum heating function of the air conditioner, the temperature in the automobile is too low in the initial stage, and cold air is often output in the initial stage of an air conditioning system, so that the comfort level of passengers is reduced. In the related art, although the existing air conditioning system can realize the temperature rise in the vehicle, most of the existing air conditioning system only considers the heating function of the air conditioner, lacks a refined temperature rise control strategy, and particularly causes the waste of energy sources and the reduction of the user experience feeling under the working condition of first power-on in cold weather, so that the problem needs to be solved. Disclosure of Invention The application provides an air conditioner cold air prevention control method, an air conditioner cold air prevention control device and a vehicle, which are used for solving the problem that the experience of a user is reduced due to lack of fine control in the background technology, and improving the comfort level of the user while saving energy through a remote preheating and fine cold air prevention control strategy. An embodiment of a first aspect of the present application provides a cold air prevention control method for an air conditioner, including the following steps: Acquiring the current ambient temperature; If the current ambient temperature is lower than a preset temperature, when a heating requirement exists on the vehicle, acquiring the current engine water temperature of the vehicle, and determining an engine target rotating speed and a target cold air prevention strategy according to the current engine water temperature; And adjusting the rotating speed of an engine of the vehicle to the target rotating speed, and performing air conditioner cold air prevention control based on the target cold air prevention strategy. According to one embodiment of the present application, after determining that the current ambient temperature is lower than the preset temperature, the method further includes: sending an air conditioner heating request instruction to a preset mobile terminal, and judging whether a confirmation instruction sent by a user based on the air conditioner heating request instruction is received or not; And if a confirmation instruction sent by the user based on the air-conditioning heating request instruction is received, judging that the heating requirement exists for the vehicle. According to one embodiment of the present application, the determining the target engine speed and the target cold wind prevention strategy according to the current engine water temperature includes: Determining a user demand temperature based on the confirmation instruction; And calculating a temperature difference value between the current engine water temperature and the user demand temperature, and determining the target engine speed, the target air quantity, the target blowing mode and the target circulation mode of the current vehicle-mounted air conditioner according to a temperature interval in which the temperature difference value is located. According to one embodiment of the application, the target engine speed is inversely related to the current temperature interval. According to one embodiment of the present application, when performing air conditioner cold air prevention control based on the target cold air prevention policy, the method further includes: acquiring heating time length corresponding to the user demand temperature; Judging whether the current running time of the vehicle-mounted air conditioner reaches the heating time corresponding to the user demand temperature; And if the running time of the current vehicle-mounted air conditioner reaches the heating time corresponding to the user demand temperature, closing the current vehicle-mounted air conditioner. According to one embodiment of the present application, after determining that the current ambient temperature is lower than the preset temperature, the method further includes: Judging whether the current vehicle receives an ignition power-on instruction or not; And if the current vehicle receives the ignition power-on instruction, judging that the vehicle has the heating requirement when the current vehicle-mounted air conditioner is in an automatic mode. According to one embodiment of the present application, the determining t