KR-102962811-B1 - Method for controlling Air conditioner of vehicle

Abstract

The present invention provides a method for controlling a vehicle air conditioning system that controls the opening amount of a temperature door by applying voltage to an actuator to control a temperature value inside the vehicle, comprising: (A) a step of increasing the voltage value applied to the actuator; (B) a step of decreasing the voltage value applied to the actuator by V1; and (C) a step prior to step B, of decreasing the voltage value applied to the actuator by V2, which is greater than V1, and then increasing it by V2-V1. According to the control method of a vehicle air conditioning system according to the present invention, when controlling the temperature downward, it is possible to control the opening amount of the temp door optimally by reaching a voltage lower than that applied from the actuator and then reaching a designated temperature. Accordingly, according to the control method of a vehicle air conditioning system of the present invention, the opening amount of the temp door is controlled to suit the user's purpose, thereby supplying air into the interior at a temperature set by the user and providing convenience to the vehicle driver and passengers.

Inventors

• 정준식
• 조우연
• 배상호

Assignees

• 주식회사 두원공조

Dates

Publication Date

20260513

Application Date

20210311

Claims (4)

1. A control method for a vehicle air conditioning system that controls the opening amount of a temp door by applying voltage to an actuator to control the temperature value inside the vehicle, (A) A step of increasing the voltage value applied to the actuator to the maximum voltage to increase the opening amount of the temp door and raise the vehicle interior temperature; (B) A step of lowering the voltage value applied to the actuator by V1 from the maximum voltage to correspond to the downward adjustment of the target temperature; (C) Prior to step B above, the voltage value applied to the actuator is lowered by V2, which is greater than V1, and then raised by V2-V1 to compensate, and After the above Step B, (D) A step of lowering the voltage value applied to the actuator by V3 from the previous applied voltage value, and (E) A method for controlling a vehicle air conditioning system comprising, prior to step D above, lowering the voltage value applied to the actuator by V4, which is greater than V3, and then raising it by V4-V3 to compensate.
2. delete
3. A control method for a vehicle air conditioning system that controls the opening amount of a temp door by applying voltage to an actuator to control the temperature value inside the vehicle, (A) A step of increasing the voltage value applied to the actuator; (B) A step of lowering the voltage value applied to the actuator by V1; (C) Prior to step B above, the voltage value applied to the actuator is lowered by V2, which is greater than V1, and then raised by V2-V1 to compensate, and The above step A is a control method for a vehicle air conditioning system, which is a step of increasing the voltage value applied to the actuator in a step function type.
4. In claim 1, The above step A is a step of raising the temperature of the air discharged into the vehicle cabin through the vehicle air conditioning system, and The above step B is a method for controlling a vehicle air conditioning system, which is a step of lowering the temperature of the air discharged into the vehicle cabin through the vehicle air conditioning system.

Description

Method for controlling air conditioner of vehicle The present invention relates to a method for controlling a vehicle air conditioning system, and more specifically, to a method for controlling a vehicle air conditioning system that controls the opening amount of a temp door to adjust the appropriate temperature of the vehicle. Generally, a vehicle's air conditioning system is a device designed to cool or heat the vehicle's interior by introducing outside air into the cabin or by heating or cooling the air circulating within the cabin. Referring to FIGS. 1 and 2, such a vehicle air conditioning device (1) controls the opening amount of the temp door (3) by means of a voltage applied to an actuator (not shown) through a controller (2) according to signal inputs from various sensors by operating an auto button, thereby performing an air conditioning mode at an appropriate temperature. However, referring to FIG. 3, in the conventional method, when the temperature is lowered in a vehicle air conditioning system (1), the temperature is controlled to be higher than the set temperature due to assembly tolerance compared to the applied voltage applied to the actuator (not shown). As a result, the opening amount of the temp door (3) is not optimally controlled and proper temperature control is not achieved, so suitable air is not supplied. Therefore, it causes discomfort or physical injury to the vehicle driver and passengers. FIG. 1 is a cross-sectional view of a conventional vehicle air conditioning system, showing the appearance in cooling mode. Figure 2 is a cross-sectional view of a conventional vehicle air conditioning system, showing the appearance in heating mode. Figure 3 is a graph showing the opening amount of the temp door due to the voltage applied to the actuator of a conventional vehicle air conditioning system. Figure 4 is a graph showing the opening amount of the temp door due to the voltage applied to the actuator of the vehicle air conditioning system according to the present invention. Figure 5 is a partial enlarged view of Figure 4. FIG. 6 is a flowchart of a control method for a vehicle air conditioning system according to the present invention. The present invention has been described with reference to the embodiments illustrated in the drawings, but this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of the present invention should be determined by the technical spirit of the appended claims. A control method for a vehicle air conditioning system (1) that controls the opening amount of a temp door (3) by applying voltage to an actuator (not shown) through a controller (2) to control the temperature value inside the vehicle according to the present invention, first begins with a step of increasing the voltage value applied to the actuator (not shown) (Step A). After Step A, the control method according to the present invention is a step of decreasing the voltage value applied to the actuator (not shown) by V1 (Step B). At this time, prior to Step B, the control method according to the present invention decreases the voltage value applied to the actuator (not shown) by V2, which is greater than V1, and then increases it by V2-V1 (Step C). At this time, in step A, the voltage value between the temp door (3) and the actuator (not shown) is adjusted from 0V (cooling) to 4.5V (heating), and the voltage value applied to the actuator (not shown) is increased in a step function type. Accordingly, in step A above, the temperature of the air discharged into the vehicle cabin through the vehicle air conditioning device (1) of the present invention is increased. As a result, in step B above, the temperature of the air discharged into the vehicle cabin through the vehicle air conditioning device (1) of the present invention is lowered. Meanwhile, the above step C lowers the voltage value applied to the actuator (not shown) by V2, which is greater than V1, and then raises it by V2-V1. Therefore, when the temperature is lowered in the present invention, the applied voltage applied to the actuator (not shown) is lowered by V1 from 4.5V to match the value set by the user, so that the opening amount of the temp door (3) can be optimally controlled. Additionally, the present invention lowers the voltage value applied to the actuator (not shown) by V3 after step B (step D), and, at this time, prior to step D, the control method according to the present invention lowers the voltage value applied to the actuator (not shown) by V4, which is greater than V3, and then raises it by V4-V3 (step E). As a result, the present invention allows the applied voltage applied to the actuator (not shown) to be lowered to the value desired by the user, that is, from 4.5V to V1+V3, so that the opening amount of the temp door (3) can be optimally controlled.