KR20080026375A - Setting temperature auto-control method of air conditioner - Google Patents

Abstract

A method for automatically adjusting the preset temperature of an air conditioner is provided to increase convenience of a user by adjusting the preset temperature according to automatically learned patterns without additional temperature manipulation when an automatic air adjustment mode is selected. A method for automatically adjusting the preset temperature of an air conditioner comprises a step of storing the external temperature and the internal temperature in the same index address of a memory when manual temperature manipulation is selected in an automatic air adjustment mode of an air conditioner. When the automatic air adjustment mode is selected, an index address of the memory, which stores the present external temperature, is searched. An index address of the memory, which stores the present internal temperature, is searched from the index address of the memory that stores the searched present external temperature.

Description

How to automatically adjust the set temperature of the air conditioner {SETTING TEMPERATURE AUTO-CONTROL METHOD OF AIR CONDITIONER}

1 is a schematic view showing an air conditioner for carrying out the adjusting method according to the present invention.

Figure 2 is a front view showing an operation unit installed in the instrument panel to implement the adjustment method according to the present invention.

3 is a flowchart showing set temperature learning logic during manual operation of a set temperature according to the present invention;

4 is a flowchart showing a set temperature automatic adjustment logic at the time of automatic air control mode selection according to the present invention.

* Explanation of symbols for main parts of the drawings

100: control unit 200: control panel

210: air conditioner operation button 220: wind direction selection button

230: outside temperature display button 240: automatic air adjustment button

250: automatic air adjustment stop button 260: air volume control button

270: Windshield defrost button 280: Rear windshield heating button

290: temperature setting button 300: interior / exterior selection button

310: harmful gas auto shut off button 320: display panel

410: In-vehicle temperature sensor 420: In-vehicle temperature sensor

430: solar radiation sensor 440: humidity sensor

450: evaporator temperature sensor 460: coolant temperature sensor

470: hazardous gas detection sensor 500: air conditioning case

510: Defrost vent 520: Face vent

530: foot vent 540: temperature control door

600: blower 610: bet suction port

620: outside air inlet 640: blowing fan

650 blower motor 700 evaporator

710: heater core 720: compressor

730: condenser 740: receiver dryer

750: expansion valve 800: engine

The present invention relates to an air conditioner, and in particular, in connection with the environmental temperature and the set temperature value of the external air temperature and the internal air temperature at the time of operation when the user manually operates the setting temperature, the setting is linked to the current environmental information in the automatic air conditioning mode The present invention relates to a method for automatically adjusting the set temperature of an air conditioner to detect temperature and control the temperature.

In general, automobiles are equipped with a predetermined air conditioner as a facility for a comfortable environment in the room. Such a car air conditioner performs a heating function to increase the room temperature by operating a predetermined heater in winter, and a cooling function of lowering the room temperature by operating a predetermined air conditioner in the summer, thereby making passengers including the driver feel comfortable. I'm getting it.

Looking specifically at the configuration of the car air conditioner, the values detected from the indoor / outdoor temperature sensor, insolation sensor, humidity sensor, evaporator temperature sensor, coolant temperature sensor, harmful gas detection sensor installed in each position is input to the control unit The control unit calculates this value and outputs and controls the driving voltages of the blower's internal / external air switching door, the blower motor, the temperature control door, and the doors of the vents, thereby controlling the inflow / outflow, the air volume, the temperature, and the wind direction. To automatically control the air conditioning mode.

For example, indoor temperature information detected by an indoor temperature sensor, outdoor temperature information detected by an outdoor temperature sensor, solar radiation information detected by an insolation sensor, vehicle humidity information detected by a humidity sensor, and an evaporator temperature sensor Analog signals such as evaporator temperature information, coolant temperature information detected by the coolant temperature sensor, and harmful gas concentration detected by the harmful gas detection sensor are converted into digital signals by a predetermined A / D converter and input to the control unit.

Then, the control unit feedback-controls the air volume control voltage, the internal / external air position voltage, the temperature control position voltage, and the air volume position voltage according to the input signals to blower motor, internal / external air switching door, temperature regulating door, and vent. The air conditioning adjustment mode is automatically performed in accordance with the vehicle indoor / outdoor environment by controlling the voltage output to their drive units so that the doors of the children operate properly.

On the other hand, even though the current air conditioner performs the full auto control by selecting the automatic air control mode, the operation of the set temperature is changed only by the user's manual selection. As a result, the operation of the commercial section (21-25 ° C.) and the set temperature section may occur. Thus, even in the AUTO control state, the operation of the set temperature, that is, the direction of the room temperature control desired by the user had to be manually selected. As a result, the user not only had to operate the set temperature while driving or when the initial start-up was turned on, but also had the inconvenience of checking the displayed temperature according to the operation.

Accordingly, the present invention is to solve the above problems, and by connecting the environmental temperature and the set temperature value of the air temperature and the internal air temperature at the time of operation to learn the set temperature operation pattern when the user manually operates the set temperature stored in addition to the automatic air When the control mode is selected, the set temperature of the air conditioner is automatically controlled by detecting the optimum set temperature value linked to the current environmental information so that the set temperature is automatically adjusted according to the previously learned pattern without additional set temperature operation. The purpose is to provide a control method.

In order to achieve the above object, the method for automatically adjusting the set temperature of the air conditioner according to the present invention includes setting the outside air temperature and the air temperature at the time of occurrence when a manual operation of the set temperature occurs in the automatic air conditioner mode of the air conditioner. Storing at the same index address of the memory and at the same index address of the memory in association with the external air temperature and the internal temperature; Retrieving the index address of the memory that is storing the current outside air temperature when the automatic air conditioning mode of the air conditioner is selected; Retrieving the index address of the memory storing the current air temperature among the index addresses of the memory storing the current outside air searched according to the search; And adjusting the temperature to the set temperature value being stored at the same index address of the memory which is stored according to the search.

At this time, when there is no index address of the memory having the same value when searching the index address of the memory storing the current outside temperature, the index address of the memory storing the closest value is searched and the current temperature is stored. If there is no index address of the memory whose value matches when searching the index address of the memory being used, it is preferable to search the index address of the memory storing the closest value.

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

1 is a schematic view showing an air conditioner for performing the adjustment method according to the present invention, Figure 2 is a front view showing an operation unit installed in the instrument panel for implementing the adjustment method according to the present invention.

As shown, the vehicle air conditioner includes an in-car temperature sensor 410 (Incar Sensor), an in-vehicle temperature sensor 420 (Ambient Sensor), an insolation sensor 430, a humidity sensor 440, and an evaporator installed inside / outside the vehicle. Internal / external air information is input to the control unit 100 from the temperature sensor 450, the coolant temperature sensor 460, and the noxious gas detection sensor 470 to output a predetermined control signal to automatically perform the air conditioning function. .

In detail, the vehicle air conditioner includes a defrost vent 510, a face vent 520, and a foot vent 530 whose openings are adjusted by doors 510 d, 520 d, and 530 d, respectively. An air intake case 500, an inlet inlet 610 connected to an inlet 550 of the air conditioner 500, and an opening degree of which is controlled by a switching door 630, is installed thereon. And a blower 600 that blows the inside or outside air into the air conditioner case 500 by the blower fan 640 that is rotated by the blower motor 650, and upstream of the internal flow path of the air conditioner case 500. Evaporator 700 is installed on the side, and the heater core 710 is installed on the downstream side of the inner flow path of the air conditioning case 500, the heater core 710 is adjusted by the temperature control door 540 is installed in front do.

In addition, the evaporator 700 is connected to the compressor 720 in a pipeline, the compressor 720 is connected to the condenser 730, the condenser 730 is connected to the receiver dryer 740, the receiver dryer 740 is connected to the expansion valve 750 is connected to the evaporator 700 is configured by the cooling cycle. Here, the heater core 710 is connected to the engine 800 is configured a heating cycle.

Therefore, in the cooling mode, the vents 510 opened while the inside air or the outside air blown by the blower 600 exchanges with the refrigerant flowing through the evaporator 700 while passing through the evaporator 700 and is changed to cold. Cooling of the vehicle interior is performed by discharging the vehicle interior through 520 and 530.

In addition, in the heating mode, the vented air is exchanged with the coolant flowing inside the heater core 710 while passing through the evaporator 700 and the heater core 710, and the vents 510 and 520 opened while being turned into warmth. By heating to the interior of the vehicle through 530) the heating of the vehicle interior is performed.

The control unit 100 includes a change door 630, a blower motor 650, a temperature control door 540, and respective doors 510d and 520d of various vents 510, 520 and 530 ( By controlling the output voltage driving 530d), the air conditioning mode pattern for the internal / external air inflow, air volume, temperature, and wind direction is controlled.

The operation unit 200 installed in the instrument panel includes an air conditioner operation button 210, a wind direction selection button 220, an outside temperature display button 230, an automatic air control button 240, an automatic air control stop button 250, and a flow rate. Control button 260, windshield defrost button 270, rear windshield heating button 280, temperature setting button 290, internal / outdoor air selection button 300, harmful gas automatic shut-off button 310, and display The panel 320 is installed.

The air conditioner operation button 210 is used to start a predetermined air conditioner during the on operation and to stop the air conditioner operation during the off operation. The wind direction selection button 220 is used to adjust the opening degree of each of the vents 510, 520, 530 in response to the selected air conditioning mode by selecting various air conditioning modes such as defrost mode, foot mode, and vent mode. . The outside temperature display button 230 is used to display the temperature of the outside air on the display panel 320.

The automatic air control button 240 is used by the control unit 100 to automatically perform the air conditioning control mode. The automatic air conditioning stop button 250 is used to stop automatic control of the automatic air conditioning regulation mode. The air volume control button 260 is used to control the air volume by adjusting the rotation speed of the blower motor 650. The windshield defrost button 270 is used to remove the defrost on the windshield by indoor discharge air by operating the defrost door 510d to open the defrost vent 510.

The rear window hot wire button 280 is used to remove the frost on the rear window by heating the heating wire installed in the rear window. The temperature setting button 290 is used to adjust the temperature of the indoor discharge air by operating the temperature control door 540 to adjust the opening degree of the blowing passage toward the heater core 710. The internal / external air selection button 300 is used to blow air in the internal circulation mode or the external air mode by operating the switching door 630 to open the internal air suction port 610 or the external air suction port 620. The harmful gas automatic shutoff button 310 operates the switching door 630 to automatically perform a bet circulation mode when it is recognized through the harmful gas detection sensor 470 installed on the front of the vehicle to the outside harmful air flow into the room. It is used to The display panel 320 is used to display the current air conditioning mode pattern state.

3 is a flowchart showing set temperature learning logic at the time of manually operating the set temperature according to the present invention. As shown, when the vehicle is started and the air conditioner operation button 210 is pressed and the auto air control button 240 of the air conditioner is pressed, the display panel 320 displays the letter “FULL AUTO” and the temperature, The air volume and the wind direction are automatically adjusted to the air conditioning mode (S100, S101).

Subsequently, when the temperature setting button 290 is pressed to manually operate the set temperature, a letter "AUTO" is displayed on the display panel 320 and the current set temperature value is stored in the set temperature temporary memory (S102 to S104). . In addition, when the temperature setting button 290 is pressed, the outside air temperature detected by the out-of-vehicle temperature sensor 420 and the inside air temperature information detected by the in-vehicle temperature sensor 410 have the same index address (eg, “ 0000 "or" 0001 ", etc.) (S105, S106).

Finally, when the predetermined time (T) has elapsed, it is checked whether the current set temperature value matches the temperature value stored in the temporary memory, that is, the last manipulated set temperature value of the set temperature learning memory in which the outside air temperature and the internal air temperature are stored. It is stored in the same index address (S107 ~ S110).

For example, when the user operates the temperature setting button 290 in the automatic air conditioning mode to set the set temperature to 17 ° C., if the outside temperature is 30 ° C. and the air temperature is 50 ° C., the set temperature learning logic is executed to execute the set temperature learning memory. In the same index address "0000", an outside air temperature of 30 ° C, an internal air temperature of 50 ° C and a set temperature value of 17 ° C are stored. Alternatively, when the user sets the set temperature to 23 ° C. while operating the temperature setting button 290 in the automatic air conditioning mode, if the outside temperature is 30 ° C. and the air temperature is 22 ° C., the set temperature learning logic is executed to execute the set temperature learning memory. The same index address "0001" stores an outdoor temperature of 30 ° C, an internal temperature of 22 ° C and a set temperature value of 23 ° C.

4 is a flowchart illustrating a set temperature automatic adjustment logic when selecting an automatic air adjustment mode according to the present invention. As shown, first, when the automatic air conditioning button 240 of the air conditioner is pressed to select the automatic air conditioning mode, the display panel 320 displays the letter “FULL AUTO” and the feedback process, that is, the set temperature learning. Searches for the index addresses storing the current outside temperature value within the error range (± Ea ° C or ± Ea × 2 ° C) set in the index address order of the memory (S200 to S204 and S208). That is, the index address of the set temperature learning memory storing the value closest to the current outside temperature is searched.

Meanwhile, when a plurality of index addresses of the memory storing the current outside air are searched according to the search, a current process is performed within the error range (± Ei ℃ or ± Ei × 2 ℃) set during the index addresses of the searched memory through a feedback process. The index addresses of the memory storing the internal temperature value are searched (S205 to S207 and S208). That is, the index address of the memory storing the value closest to the current temperature is searched among the index addresses of the memory storing the current outside temperature.

Finally, when the index address of the memory storing the current internal temperature is found according to the search, the air conditioner automatically adjusts the current set temperature to the set temperature value stored in the index address of the searched memory (S209 to S214). .

That is, if the current set temperature matches the set temperature value stored in the index address of the searched memory, it is terminated as it is (S210). If the current set temperature is greater than the set temperature value stored in the index address of the searched memory, the current set temperature is set. In order to match the temperature value, the temperature is lowered (S211, S212). If the current set temperature is smaller than the set temperature value stored in the index address of the searched memory, the temperature is increased to match the set temperature value. The process goes to S213 and S214.

For example, if the outside air temperature is approximately 30 ° C. and the inside air temperature is approximately 22 ° C. when the air conditioning mode of the air conditioner is selected, the air conditioner may have addresses “0000” and “0001” when searching for an index address storing the current outside temperature. When searching for an index address storing the current internal temperature, the address “0001” is searched and adjusted to 23 ° C., which is a set temperature value stored in the address.

On the other hand, although the method for automatically adjusting the set temperature of the air conditioner according to the present invention has been described according to a limited embodiment, the scope of the present invention is not limited to a specific embodiment, to those skilled in the art related to the present invention. Various alternatives, modifications, and changes can be made within the scope of the obvious.

According to the present invention, when the user selects the automatic temperature control pattern by learning the set temperature operation pattern, the set temperature is automatically adjusted according to the pre-learned pattern without a separate set temperature operation, thereby providing convenience for use and improving customer satisfaction. There is an advantage to this.

Claims (2)

When manual operation of the set temperature occurs in the air conditioner mode of the air conditioner, the external air temperature and the internal air temperature at the time of occurrence are stored in the same index address of the memory, and the manipulated set temperature value is linked with the external air temperature and the air temperature. Storing at the same index address of the memory; Retrieving the index address of the memory that is storing the current outside air temperature when the automatic air conditioning mode of the air conditioner is selected; Retrieving the index address of the memory storing the current air temperature among the index addresses of the memory storing the current outside air searched according to the search; And adjusting the temperature of the current internal temperature searched according to the search to a set temperature value stored at the same index address of the memory being stored. The method of claim 1, If there is no index address of the memory having the same value when searching the index address of the memory storing the current outside temperature, the index address of the memory storing the closest value is searched. When there is no index address of the memory that matches the value when searching the index address of the memory storing the current internal temperature, setting the air conditioner, characterized in that for searching the index address of the memory storing the closest value How to adjust temperature automatically.

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