CN-116494714-B - Control method of vehicle-mounted air conditioner and air conditioner

CN116494714BCN 116494714 BCN116494714 BCN 116494714BCN-116494714-B

Abstract

The invention relates to the technical field of air conditioners, in particular to a control method of a vehicle-mounted air conditioner and the air conditioner, and aims to solve the problem that the existing vehicle-mounted air conditioner is not matched with vehicle kinetic energy. The control method of the vehicle-mounted air conditioner comprises the steps of confirming whether the vehicle-mounted air conditioner is in a stable state, acquiring a load state of a vehicle when the vehicle-mounted air conditioner is in the stable state, and selectively controlling the running state of the vehicle-mounted air conditioner according to the load state of the vehicle. According to the control method of the vehicle-mounted air conditioner, when the air conditioner in the vehicle is determined to be in a stable state, the running state of the vehicle-mounted air conditioner is controlled according to the load state of the vehicle, so that the running of the vehicle-mounted air conditioner is matched with the kinetic energy of the vehicle, the vehicle is ensured to have enough running kinetic energy, the use of the vehicle-mounted air conditioner can meet the requirement, and the energy efficiency of the vehicle-mounted air conditioner is improved.

Inventors

JING TAO
CAI ZEYAO
MA ZHENHAO

Assignees

青岛海尔空调器有限总公司
青岛海尔空调电子有限公司
青岛海尔智能技术研发有限公司
海尔智家股份有限公司

Dates

Publication Date: 20260508
Application Date: 20230327

Claims (5)

1. The control method of the vehicle-mounted air conditioner is characterized in that the vehicle-mounted air conditioner comprises a compressor, an electronic expansion valve and a fan, wherein the compressor is connected with the electronic expansion valve through a pipeline and is used for adjusting heat energy of a refrigerant medium in the vehicle-mounted air conditioner, the electronic expansion valve is used for controlling flow rate of the refrigerant medium flowing to the compressor, the fan is configured for adjusting flow rate of air flow flowing out of the vehicle-mounted air conditioner, and the control method of the vehicle-mounted air conditioner comprises the following steps: confirming whether the vehicle-mounted air conditioner is in a stable state or not; when the vehicle-mounted air conditioner is in a stable state, acquiring the actual load and the rated load of the vehicle in real time based on a traction system of the vehicle, wherein the ratio of the actual load to the rated load is used for representing a load ratio, and the load ratio is used for representing a load state; selectively controlling the running state of the vehicle-mounted air conditioner according to the magnitude relation between the load ratio and the set ratio; executing a first control logic on the running state of the vehicle-mounted air conditioner when the load ratio is smaller than or equal to the set ratio; Executing a second control logic on the running state of the vehicle-mounted air conditioner when the load ratio is larger than the set ratio, wherein the set ratio is 1; When the load ratio is greater than 1, adjusting the frequency of the compressor from a third frequency to a fourth frequency, adjusting the opening of the electronic expansion valve from the third opening to the fourth opening, and adjusting the rotating speed of the fan from the third rotating speed to the fourth rotating speed; The third frequency is smaller than the fourth frequency, the third opening is larger than the fourth opening, and the third rotating speed is larger than the fourth rotating speed.
2. The control method of an in-vehicle air conditioner according to claim 1, wherein, The step of executing the first control logic on the operation state of the vehicle-mounted air conditioner when the load ratio is smaller than or equal to the set ratio includes: When the load ratio is less than or equal to 1, adjusting the frequency of the compressor from a first frequency to a second frequency, adjusting the opening of the electronic expansion valve from the first opening to the second opening, and adjusting the rotating speed of the fan from the first rotating speed to the second rotating speed; The first frequency is greater than the second frequency, the first opening is smaller than the second opening, and the first rotating speed is smaller than the second rotating speed.
3. The control method of an in-vehicle air conditioner according to claim 1, wherein the step of confirming whether the in-vehicle air conditioner is in a steady state includes: The vehicle-mounted air conditioner operates for a preset time in a self-adaptive mode, and enters a stable state after the temperature in the vehicle reaches a preset temperature.
4. The control method of the in-vehicle air conditioner according to claim 3, characterized in that the in-vehicle air conditioner includes a temperature detection unit provided inside the vehicle; The step of enabling the vehicle-mounted air conditioner to run for a preset time in a self-adaptive mode, and enabling the vehicle-mounted air conditioner to enter a stable state after the temperature in the vehicle reaches a preset temperature comprises the following steps of: And after the vehicle-mounted air conditioner acquires a starting instruction, performing self-adaptive mode operation based on the preset temperature and the temperature in the vehicle, and determining that the vehicle-mounted air conditioner enters a stable state after the temperature value detected by the temperature detection unit reaches the preset temperature in the preset time.
5. An air conditioner comprising a processor and a memory for storing computer executable instructions, wherein the computer executable instructions are capable of being invoked and executed by the processor to implement the control method of the vehicle-mounted air conditioner of any one of claims 1-4.

Description

Control method of vehicle-mounted air conditioner and air conditioner Technical Field The invention relates to the technical field of air conditioners, and particularly provides a control method of a vehicle-mounted air conditioner and the air conditioner. Background In order to improve the driving experience of the driver, an in-vehicle air conditioner is added to the vehicle. When the load of a vehicle changes during running of the vehicle, particularly a small-sized vehicle, the power of the vehicle is also affected by the use of an on-vehicle air conditioner. The control process of the existing vehicle-mounted air conditioner on the market is basically adjusted based on the temperature in the vehicle or the number of passengers in the vehicle, but the control process of the vehicle-mounted air conditioner does not consider the power condition of the vehicle, so that the operation effect of the vehicle-mounted air conditioner is relatively poor when the load of the vehicle is high. Therefore, a control method of the vehicle-mounted air conditioner is needed to solve the above technical problems. Disclosure of Invention The invention aims to solve the technical problems, namely the problem that the existing vehicle-mounted air conditioner is not matched with the kinetic energy of the vehicle. To this end, a first aspect of the present invention provides a control method of an in-vehicle air conditioner provided on a vehicle, wherein the control method of the in-vehicle air conditioner includes the steps of: confirming whether the vehicle-mounted air conditioner is in a stable state or not; when the vehicle-mounted air conditioner is in a stable state, acquiring a load state of the vehicle; and selectively controlling the running state of the vehicle-mounted air conditioner according to the load state of the vehicle. In the above preferred technical solution of the control method of a vehicle-mounted air conditioner, the step of acquiring the load state of the vehicle when the vehicle-mounted air conditioner is in a stable state includes: And when the vehicle-mounted air conditioner is in a stable state, acquiring a load ratio of the vehicle, wherein the load ratio is used for representing the load state. In the above preferred technical solution of the control method of a vehicle-mounted air conditioner, the step of "obtaining the load ratio of the vehicle" includes: And acquiring the actual load and the rated load of the vehicle in real time based on a traction system of the vehicle, wherein the ratio of the actual load to the rated load is used for representing the load ratio. In a preferred embodiment of the above control method for a vehicle-mounted air conditioner, the step of selectively controlling the operation state of the vehicle-mounted air conditioner according to the load state of the vehicle includes: and selectively controlling the running state of the vehicle-mounted air conditioner according to the magnitude relation between the load ratio and the set ratio. In the above preferred technical solution of the control method of a vehicle-mounted air conditioner, the step of selectively controlling the running state of the vehicle-mounted air conditioner according to the magnitude relation between the load ratio and the set ratio includes: Executing a first control logic for the running state of the vehicle-mounted air conditioner when the load ratio is smaller than or equal to the set ratio, and/or And when the load ratio is larger than the set ratio, executing a second control logic on the running state of the vehicle-mounted air conditioner. In the preferred technical scheme of the control method of the vehicle-mounted air conditioner, the vehicle-mounted air conditioner comprises a compressor, an electronic expansion valve and a fan; the compressor is connected with the electronic expansion valve through a pipeline and is used for adjusting heat energy of a refrigerant medium in the vehicle-mounted air conditioner; the electronic expansion valve is used for controlling the flow rate of the refrigerant medium flowing to the compressor; the fan is configured to adjust a flow rate of an airflow exiting the vehicle air conditioner; The set ratio is 1; The step of executing the first control logic on the operation state of the vehicle-mounted air conditioner when the load ratio is smaller than or equal to the set ratio includes: When the load ratio is less than or equal to 1, adjusting the frequency of the compressor from a first frequency to a second frequency, adjusting the opening of the electronic expansion valve from the first opening to the second opening, and adjusting the rotating speed of the fan from the first rotating speed to the second rotating speed; The first frequency is greater than the second frequency, the first opening is smaller than the second opening, and the first rotating speed is smaller than the second rotating speed. In the above preferred technical solution of the c