KR20020080980A - Method for controlling an air conditioner in a motor vehicle - Google Patents

Method for controlling an air conditioner in a motor vehicle Download PDF

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Publication number
KR20020080980A
KR20020080980A KR1020010020916A KR20010020916A KR20020080980A KR 20020080980 A KR20020080980 A KR 20020080980A KR 1020010020916 A KR1020010020916 A KR 1020010020916A KR 20010020916 A KR20010020916 A KR 20010020916A KR 20020080980 A KR20020080980 A KR 20020080980A
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South Korea
Prior art keywords
cooling fan
temperature
compressor
conditioning system
air conditioning
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KR1020010020916A
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Korean (ko)
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KR100384534B1 (en
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나정욱
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기아자동차주식회사
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Priority to KR10-2001-0020916A priority Critical patent/KR100384534B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3205—Control means therefor
    • B60H1/3208—Vehicle drive related control of the compressor drive means, e.g. for fuel saving purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H2001/3236—Cooling devices information from a variable is obtained
    • B60H2001/3255—Cooling devices information from a variable is obtained related to temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H2001/3269—Cooling devices output of a control signal
    • B60H2001/327—Cooling devices output of a control signal related to a compressing unit
    • B60H2001/3273—Cooling devices output of a control signal related to a compressing unit related to the operation of the vehicle, e.g. the compressor driving torque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H2001/3269—Cooling devices output of a control signal
    • B60H2001/3276—Cooling devices output of a control signal related to a condensing unit
    • B60H2001/3277—Cooling devices output of a control signal related to a condensing unit to control the air flow

Abstract

PURPOSE: A method for controlling air-conditioning system for automobile is provided to prevent unnecessary fuel consumption and generation of vibration. CONSTITUTION: A method includes the steps of: a step(S1) detecting indoor temperature; and a step(S2,S3,S4,S5,S6,S7,S8) driving a compressor and a cooling fan when detected indoor temperature is higher than a reference temperature and stopping driving of the compressor and the cooling fan when the detected indoor temperature is lower than the reference temperature. Unnecessary fuel consumption, noise and vibration are not generated and durability of the cooling fan is improved thereby.

Description

자동차용 공조시스템의 제어 방법{Method for controlling an air conditioner in a motor vehicle}Method for controlling an air conditioner in a motor vehicle

본 발명은 자동차의 공조시스템을 제어하는 방법에 관한 것이다.The present invention relates to a method for controlling an air conditioning system of an automobile.

공기조화는 밀폐된 공간의 공기 온도, 습도, 청정도, 및 분산을 동시에 그 공간의 목적에 맞게 제어하는 것을 말한다. 자동차에 있어서, 공기조화시스템(이하, 공조시스템이라 약칭함)은 냉방장치와 난방장치를 포함하고 있다.Air conditioning refers to controlling the air temperature, humidity, cleanliness, and dispersion of an enclosed space at the same time according to the purpose of the space. In automobiles, an air conditioning system (hereinafter referred to as an air conditioning system) includes a cooling device and a heating device.

도 1은 이중에서 냉방 장치의 구성을 예시한 것이다. 냉방장치는 크게 전자석 클러치(12)가 설치된 냉매 압축기(10)와, 응축기(20)와, 증발기(40)와, 팽창밸브(30)와, 송풍팬(60)과, 냉각팬(50)을 포함한다. 압축기(10)는 엔진으로부터 구동력을 제공받으며, 이 구동력은 전자석 클러치(12)에 의해 단속된다.1 illustrates a configuration of a cooling device in a double. The cooling device includes a refrigerant compressor (10), a condenser (20), an evaporator (40), an expansion valve (30), a blower fan (60), and a cooling fan (50) provided with an electromagnetic clutch (12). Include. The compressor 10 is provided with a driving force from the engine, and the driving force is interrupted by the electromagnet clutch 12.

최근에는 온도 센서(70)를 이용하여 실내 온도를 검출하여, 실내 온도가 설정된 온도로 맞추어지도록 압축기(10)의 작동을 자동으로 제어하는 자동 제어식 공조시스템이 제공되고 있다.Recently, an automatic controlled air conditioning system is provided that detects an indoor temperature using a temperature sensor 70 and automatically controls the operation of the compressor 10 so that the indoor temperature is set to a set temperature.

그러나, 상기와 같은 종래의 자동 제어식 공조시스템은 다음과 같은 단점이 있었다. 즉, 응축기에서 이루어지는 냉매와 외기 사이의 열교환을 촉진하기 위한 냉각팬은 압축기의 작동 여부와 관계없이 공조시스템이 온(On)된 상태에서는 항상 구동된다. 따라서, 압축기가 작동하지 않을 때, 즉 실질적으로 공조시스템이 구동되지 않을 경우에도 냉각팬이 구동되므로, 엔진의 부하가 증가되어 불필요하게 연료가 소모될 뿐만 아니라, 계속적인 냉각팬의 구동에 의해 소음과 진동이 발생되며 냉각팬의 내구성도 저하된다. 더욱이, 엔진의 시동과 동시에 공조시스템이 작동되는 경우, 냉각팬의 구동으로 인하여 엔진의 난기, 즉 워밍업(warming up)이 지연되어 역시 불필요한 연료 소비가 유발되는 단점도 있다.However, the conventional automatic control air conditioning system as described above has the following disadvantages. That is, the cooling fan for promoting heat exchange between the refrigerant in the condenser and the outside air is always driven when the air conditioning system is on regardless of whether the compressor is operated. Therefore, since the cooling fan is driven even when the compressor is not operated, i.e., when the air conditioning system is not substantially operated, the load of the engine is increased, fuel is unnecessarily consumed, and noise is generated by continuous cooling fan operation. Excessive vibration is generated and durability of the cooling fan is also reduced. Moreover, when the air conditioning system is operated at the same time as the engine is started, there is a disadvantage that the warm up of the engine, that is, the warming up, is delayed due to the operation of the cooling fan, which also causes unnecessary fuel consumption.

본 발명은, 상기와 같은 점을 감안하여 안출된 것으로, 불필요한 연료 소비 및 진동 발생을 방지할 수 있도록 공조시스템을 제어하는 방법을 제공하는데 그 목적이 있다.The present invention has been made in view of the above, and an object thereof is to provide a method for controlling an air conditioning system to prevent unnecessary fuel consumption and vibration.

도 1은 일반적인 자동차용 공조시스템의 구성을 개략적으로 도시한 사시도.1 is a perspective view schematically showing the configuration of a general automotive air conditioning system.

도 2는 본 발명에 따른 공조시스템 제어 방법을 설명하기 위한 흐름도.2 is a flowchart illustrating a method for controlling an air conditioning system according to the present invention.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10 : 압축기20 : 응축기10 compressor 20 condenser

30 : 팽창 밸브40 : 증발기30 expansion valve 40 evaporator

50 ; 냉각팬60 : 송풍팬50; Cooling Fan 60: Blowing Fan

상기의 목적을 달성하기 위한 본 발명에 따른 자동차용 공조시스템 제어 방법은, 실내 온도를 검출하는 단계; 및 검출된 실내 온도가 기준 온도 이상일 경우 압축기 및 냉각팬을 구동하고, 검출된 실내 온도가 기준 온도 이하인 경우 압축기 및 냉각팬의 구동을 정지시키는 단계를 포함한다.Vehicle air conditioning system control method according to the present invention for achieving the above object comprises the steps of detecting the room temperature; And driving the compressor and the cooling fan when the detected room temperature is greater than or equal to the reference temperature, and stopping driving of the compressor and the cooling fan when the detected room temperature is less than or equal to the reference temperature.

여기서, 검출된 실내 온도가 기준 온도 이상일 경우 먼저 냉각팬을 구동하고, 냉각팬의 구동에 따른 부하 변동에 의한 엔진 회전수의 변동이 제거되고 나서 압축기를 구동하며; 검출된 실내 온도가 기준 온도 이하인 경우 먼저 압축기의 구동을 정지시키고, 압축기의 정지에 따른 부하 변동에 의한 엔진 회전수의 변동이 제거되고 나서 냉각팬의 구동을 정지시킨다.Here, when the detected room temperature is equal to or higher than the reference temperature, the cooling fan is first driven, and then the compressor is driven after the variation of the engine speed due to the load variation according to the driving of the cooling fan is removed; When the detected room temperature is less than or equal to the reference temperature, first the drive of the compressor is stopped, and the change of the engine speed due to the load change caused by the stop of the compressor is removed, and then the drive of the cooling fan is stopped.

바람직하게는, 공조시스템이 처음 작동될 때 기준 온도는 사용자에 의해 설정된 온도이며, 공조 시스템의 작동 중일 때 기준 온도는 사용자에 의해 설정된 온도보다 소정 온도만큼 낮은 온도이다.Preferably, when the air conditioning system is first operated, the reference temperature is a temperature set by the user, and when the air conditioning system is in operation, the reference temperature is a temperature lower by a predetermined temperature than the temperature set by the user.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

도 2는 본 발명의 일 실시예에 따른 공조시스템 제어 방법을 설명하기 위한 흐름도이다.2 is a flowchart illustrating a method for controlling an air conditioning system according to an embodiment of the present invention.

흐름도에 따르면, 공조시스템이 온되면 우선 실내 온도를 검출한다(S1). 실내 온도는 실내에 설치된 온도 센서에 의해 검출된다. 그리고 나서, 검출된 실내 온도를 기준 온도와 비교한다(S2). 공조시스템이 처은 온될 때 기준 온도는 사용자에 의해 설정된 온도로 설정되고, 공조시스템이 작동 중일 때 기준 온도는 사용자에 설정된 온도보다 대략 1∼3도 낮은 온도로 설정된다.According to the flow chart, when the air conditioning system is turned on, the room temperature is first detected (S1). Room temperature is detected by a temperature sensor installed indoors. Then, the detected room temperature is compared with the reference temperature (S2). When the air conditioning system is turned on, the reference temperature is set to a temperature set by the user, and when the air conditioning system is operating, the reference temperature is set to a temperature approximately 1 to 3 degrees lower than the temperature set by the user.

만약, 실내 온도가 기준 온도 이상이면, 냉각팬과 압축기를 구동한다(S3∼S5). 이때, 냉각팬이 구동되면 엔진을 제어하는 전자제어유닛은 냉각팬의 구동에 따른 부하 변동에 따라 부하 보정을 하며, 이때 엔진의 회전수, 즉 rpm이 변화된다. 따라서, 냉각팬이 구동된(S3) 다음 엔진의 rpm 변동이 제거되었는지 판단하여(S4), 엔진의 rpm 변동이 제거되었을 때 압축기를 구동시킨다(S5). 이에 따라, 냉매가 공조시스템을 순환하면서 열교환에 의한 냉방 작용을 실시한다.If the room temperature is equal to or higher than the reference temperature, the cooling fan and the compressor are driven (S3 to S5). At this time, when the cooling fan is driven, the electronic control unit for controlling the engine corrects the load according to the load fluctuation according to the driving of the cooling fan, wherein the rotation speed of the engine, that is, the rpm is changed. Therefore, it is determined whether the rpm fluctuation of the next engine after the cooling fan is driven (S3) is removed (S4), and the compressor is driven when the rpm fluctuation of the engine is removed (S5). As a result, the coolant circulates through the air conditioning system and performs cooling by heat exchange.

한편, S2 단계에서 실내 온도가 기준 온도 이하일 경우, 압축기와 냉각팬을 정지시킨다(S6∼S8). 이때, 상술된 바와 마찬가지로 압축기가 정지되면 엔진을 제어하는 전자제어유닛은 압축기의 정지에 따른 부하 변동에 따라 부하 보정을 하며, 이때 엔진의 회전수, 즉 rpm이 변화된다. 그러므로, 압축기가 정지된(S6) 다음 엔진의 rpm 변동이 제거되었는지 판단하여(S7), 엔진의 rpm 변동이 제거되었을 때 냉각팬을 정지시킨다(S8). 이에 따라, 공조시스템이 온된 상태에서도 냉각팬은 구동되지 않는다.On the other hand, when the room temperature is below the reference temperature in step S2, the compressor and the cooling fan are stopped (S6 to S8). At this time, as described above, when the compressor is stopped, the electronic control unit for controlling the engine corrects the load according to the load variation caused by the stop of the compressor, and at this time, the engine speed, ie, rpm, is changed. Therefore, the compressor is stopped (S6), it is determined whether the rpm change of the engine is removed (S7), and the cooling fan is stopped when the rpm change of the engine is removed (S8). Accordingly, the cooling fan is not driven even when the air conditioning system is turned on.

상기된 바와 같이, 본 발명에 따른 제어 방법은 실내 온도가 사용자에 의해 설정된 온도 이하이면 압축기를 정지시키는 동시에 냉각팬도 정지시킨다. 따라서, 종래와 같은 불필요하게 연료가 낭비되지 않고 불필요한 진동 및 소음도 발생되지 않으며, 냉각팬의 내구성이 향상되는 장점이 있다.As described above, the control method according to the present invention stops the compressor and at the same time stops the cooling fan when the room temperature is below the temperature set by the user. Therefore, the fuel is not unnecessarily wasted and unnecessary vibration and noise are not generated as in the related art, and the durability of the cooling fan is improved.

이상에서는, 본 발명을 특정의 바람직한 실시예에 대해서 도시하고 설명하였다. 그러나, 본 발명은 상술한 실시예에만 한정되는 것은 아니며, 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자라면 이하의 특허청구범위에 기재된 본 발명의 기술적 사상의 요지를 벗어남이 없이 얼마든지 다양하게 변경실시할 수 있을 것이다.In the above, the present invention has been illustrated and described with respect to certain preferred embodiments. However, the present invention is not limited only to the above-described embodiments, and those skilled in the art to which the present invention pertains may vary without departing from the spirit of the technical idea of the present invention described in the claims below. It may be changed.

Claims (3)

실내 온도를 검출하는 단계; 및Detecting room temperature; And 검출된 실내 온도가 기준 온도 이상일 경우 압축기 및 냉각팬을 구동하고, 검출된 실내 온도가 기준 온도 이하인 경우 압축기 및 냉각팬의 구동을 정지시키는 단계를 포함하는 자동차용 공조시스템의 제어 방법.And driving the compressor and the cooling fan when the detected room temperature is equal to or greater than the reference temperature, and stopping the driving of the compressor and the cooling fan when the detected room temperature is equal to or less than the reference temperature. 제 1 항에 있어서, 검출된 실내 온도가 기준 온도 이상일 경우 먼저 냉각팬을 구동하고, 냉각팬의 구동에 따른 부하 변동에 의한 엔진 회전수의 변동이 제거되고 나서 압축기를 구동하며; 검출된 실내 온도가 기준 온도 이하인 경우 먼저 압축기의 구동을 정지시키고, 압축기의 정지에 따른 부하 변동에 의한 엔진 회전수의 변동이 제거되고 나서 냉각팬의 구동을 정지시키는 자동차용 공조시스템의 제어 방법.2. The method of claim 1, wherein when the detected room temperature is equal to or higher than the reference temperature, the cooling fan is first driven, and then the compressor is driven after the variation of the engine speed due to the load variation according to the driving of the cooling fan is removed; If the detected room temperature is less than the reference temperature, the drive of the compressor is first stopped, and after the change in the engine speed due to the load change caused by the stop of the compressor is removed, the control method of the automotive air conditioning system for stopping the drive of the cooling fan. 제 1 항 또는 제 2 항에 있어서, 공조시스템이 처음 작동될 때 기준 온도는 사용자에 의해 설정된 온도이며, 공조 시스템의 작동 중일 때 기준 온도는 사용자에 의해 설정된 온도보다 소정 온도만큼 낮은 온도인 자동차용 공조시스템의 제어 방법.3. The vehicle according to claim 1 or 2, wherein the reference temperature is a temperature set by the user when the air conditioning system is first operated, and the reference temperature is a predetermined temperature lower than the temperature set by the user when the air conditioning system is in operation. How to control the air conditioning system.
KR10-2001-0020916A 2001-04-18 2001-04-18 Method for controlling an air conditioner in a motor vehicle KR100384534B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
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WO2005021300A1 (en) * 2003-09-03 2005-03-10 Halla Climate Control Corp. Controlling method of air conditioning system for vehicles
DE10359611B4 (en) * 2003-04-21 2013-09-19 Hyundai Motor Company Method and device for controlling the cooling fan of a vehicle

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10359611B4 (en) * 2003-04-21 2013-09-19 Hyundai Motor Company Method and device for controlling the cooling fan of a vehicle
WO2005021300A1 (en) * 2003-09-03 2005-03-10 Halla Climate Control Corp. Controlling method of air conditioning system for vehicles
CN100413715C (en) * 2003-09-03 2008-08-27 汉拿空调株式会社 Controlling method of air conditioning system for vehicles
US8418490B2 (en) 2003-09-03 2013-04-16 Halla Climate Control Corp. Controlling method of air conditioning system for vehicles

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