KR101250274B1 - The control method of air conditioner for vehicle with ice accumulator - Google Patents
The control method of air conditioner for vehicle with ice accumulator Download PDFInfo
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- KR101250274B1 KR101250274B1 KR1020070003701A KR20070003701A KR101250274B1 KR 101250274 B1 KR101250274 B1 KR 101250274B1 KR 1020070003701 A KR1020070003701 A KR 1020070003701A KR 20070003701 A KR20070003701 A KR 20070003701A KR 101250274 B1 KR101250274 B1 KR 101250274B1
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- 238000000034 method Methods 0.000 title claims description 20
- 239000002826 coolant Substances 0.000 claims description 68
- 238000004378 air conditioning Methods 0.000 claims description 11
- 230000017525 heat dissipation Effects 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 7
- 239000003507 refrigerant Substances 0.000 claims description 5
- 238000009825 accumulation Methods 0.000 claims 1
- 238000005057 refrigeration Methods 0.000 description 10
- 238000005338 heat storage Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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Classifications
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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
- B60H1/322—Control means therefor for improving the stop or idling operation of the engine
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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
- B60H1/00492—Heating, cooling or ventilating [HVAC] devices comprising regenerative heating or cooling means, e.g. heat accumulators
-
- 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
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
- B60H1/00764—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being a vehicle driving condition, e.g. speed
- B60H1/00778—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being a vehicle driving condition, e.g. speed the input being a stationary vehicle position, e.g. parking or stopping
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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
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
- B60H1/00828—Ventilators, e.g. speed control
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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
- B60H2001/3236—Cooling devices information from a variable is obtained
- B60H2001/3255—Cooling devices information from a variable is obtained related to temperature
- B60H2001/3261—Cooling devices information from a variable is obtained related to temperature of the air at an evaporating unit
-
- 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
- B60H2001/3266—Cooling devices information from a variable is obtained related to the operation of the vehicle
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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
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D2020/0004—Particular heat storage apparatus
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
본 발명은 공조케이스의 내부로 공기를 공급하는 송풍기가 설치되고, 공조케이스의 송풍 유로상에는 상기 송풍기에 의해 유입된 공기를 열교환에 의해 냉각시키는 증발기 및 증발기를 통과한 공기와 열교환하여 냉기를 축적할 수 있는 축냉기가 설치되는 차량용 공조장치의 제어방법에 관한 것으로서, 차량 엔진 구동 중 엔진을 정지시키기 위한 아이들 스톱 신호 발생 시 증발기 온도값 및 축냉기내의 축냉제 온도값을 검출하는 단계와; 상기 검출된 증발기 온도값으로부터 축냉제 온도값을 차감한 연산 온도값과 설정된 축냉제 축냉 완료 판단 온도값을 비교하는 단계와; 상기 연산 온도값이 축냉제 축냉 완료 판단 온도값보다 크면 엔진을 정지시켜 압축기를 정지시키고, 크지 않으면 엔진을 계속 구동시켜 압축기를 가동시키는 단계와; 상기 연산 온도값이 축냉제 축냉 완료 판단 온도값보다 커서 압축기가 정지되면 축냉제의 온도값을 검출하여 검출된 축냉제 온도값과 설정된 축냉제 방열 판단 온도값을 비교하는 단계와; 상기 축냉제 온도값이 축냉제 방열 판단 온도값보다 크면 엔진을 재구동시켜 압축기를 가동시키는 단계를 포함하는 것을 특징으로 한다.The present invention is provided with a blower for supplying air to the interior of the air conditioning case, heat exchanged with the air passing through the evaporator and the evaporator to cool the air introduced by the blower by heat exchange on the air flow path of the air conditioning case to accumulate cold air. A control method of an on-vehicle air conditioner in which a coolant is installed, the method comprising: detecting an evaporator temperature value and a coolant temperature value in a cooler when an idle stop signal is generated to stop the engine during driving of a vehicle engine; Comparing the computed temperature value obtained by subtracting the coolant temperature value from the detected evaporator temperature value and the set coolant storage temperature completion determination temperature value; Stopping the engine by stopping the engine when the calculated temperature value is greater than the stored coolant value of the coolant storage completion temperature; Detecting a temperature value of the coolant by comparing the detected coolant temperature with a set coolant heat dissipation judgment temperature value when the compressor temperature is greater than the calculated coolant coolant completion determination temperature value; And operating the compressor by restarting the engine when the coolant temperature value is greater than the coolant heat dissipation determination temperature value.
축냉기, 공조장치 Cold storage, air conditioning
Description
도 1은 종래의 차량용 공조장치의 일례를 나타내는 도면. 1 is a view showing an example of a conventional vehicle air conditioner.
도 2는 본 발명에 따라 차량 엔진 구동 중 아이들 스톱 신호 발생 시의 제어방법을 나타내는 흐름도.2 is a flowchart illustrating a control method when an idle stop signal is generated while driving a vehicle engine according to the present invention;
도 3은 본 발명에 따라 차량 주행 시의 제어방법을 나타내는 흐름도. 3 is a flowchart illustrating a control method when driving a vehicle according to the present invention.
*도면의 주요부분에 대한 부호의 설명DESCRIPTION OF THE REFERENCE NUMERALS
2 : 냉장 보관기(축냉기) 3 : 증발기2: cold storage (storage cooler) 3: evaporator
4 : 케이싱 5 : 송풍기4: casing 5: blower
6 : 히터 코어 7 : 내외기 절환용 도어6: heater core 7: door for switching the inside and outside air
8 : 에어믹스 도어 9,10,11 : 취출모드 절환용 도어8:
본 발명은 차량용 공조장치의 제어방법에 관한 것으로서, 특히 차량 엔진 정지와 동시에 압축기, 응축기, 팽창밸브 및 증발기로 이루어진 냉동 사이클의 순환이 정지된 경우라도 차내 온도의 상승을 방지할 수 있도록 하는 축냉기를 구비한 차량용 공조장치의 제어방법에 관한 것이다.The present invention relates to a control method of a vehicle air conditioner, and in particular, a storage cooler to prevent the rise in the temperature of the vehicle even when the circulation of the refrigeration cycle consisting of the compressor, condenser, expansion valve and evaporator is stopped at the same time as the vehicle engine stops. It relates to a control method of a vehicle air conditioner having a.
일반적으로, 차량에는 실내의 쾌적한 환경을 위한 편의 시설로서 소정의 공조장치가 구비되어 있다. 이러한 차량용 공조장치는 겨울철에는 소정의 히터를 가동시켜 실내 온도를 높이는 난방 기능을 수행하고, 여름철에는 소정의 에어컨을 가동시켜 실내 온도를 낮추는 냉방 기능을 수행함으로써 운전자를 포함하는 탑승자들이 쾌적한 느낌을 받도록 하고 있다. 2. Description of the Related Art Generally, a vehicle is provided with a predetermined air conditioner as a convenience facility for a pleasant environment of the room. Such a vehicle 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 summer, so that passengers including the driver can feel comfortable. Doing.
차량용 공조장치의 구성을 구체적으로 살펴보면, 각각의 위치에 설치되는 실내/외 온도 센서, 일사량 센서, 습도 센서, 증발기 온도 센서, 냉각수 온도 센서, 유해 가스 감지 센서로부터 감지되는 값이 제어 유니트에 입력되고, 상기 제어 유니트는 이 값을 연산하여 송풍기의 내/외기 전환 도어, 송풍기 모터, 온도 조절 도어, 및 각 벤트들의 도어들의 구동 전압을 출력 제어함으로써 내/외기 유입, 풍량, 온도, 및 풍향에 대한 공조 모드를 자동적으로 제어하도록 이루어져 있다. Looking specifically at the configuration of the vehicle 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, air volume, temperature, and wind direction. It is configured to automatically control the air conditioning mode.
예컨대, 실내 온도 센서에 의해 감지되는 실내 온도 정보, 실외 온도 센서에 의하여 감지되는 실외 온도 정보, 일사량 센서에 의하여 감지되는 일사량 정보, 습도 센서에 의하여 감지되는 차내 습도 정보, 증발기 온도 센서에 의하여 감지되는 증발기 온도 정보, 냉각수 온도 센서에 의하여 감지되는 냉각수 온도 정보, 유해 가스 감지 센서에 의하여 감지되는 유해 가스 농도 등의 아날로그 신호가 소정의 A/D 변환기에 의하여 디지털 신호로 변환되어 제어 유니트로 입력된다.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.
그러면, 제어 유니트는 상기 입력 신호들에 따라 풍량 조절 전압, 내/외기 위치 전압, 온도 조절 위치 전압, 및 풍량 위치 전압을 피드백 출력 제어하여 송풍 기 모터, 내/외기 전환 도어, 온도 조절 도어, 및 벤트들의 도어들이 적절하게 동작하도록 이들의 구동부에 출력되는 전압을 제어함으로써 차량 실내/외 환경에 따라 공조 조절 모드가 자동적으로 수행된다. Then, the control unit feedback-controls the air volume control voltage, the internal / external air position voltage, the temperature regulating 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 The air conditioning control 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 vents operate properly.
한편, 최근 환경을 보호하고 차량 엔진의 연비 향상을 위하여, 교통 신호 대기 등과 같은 정차 시에 엔진을 자동적으로 정지시키는 차량(예컨대, 하이브리드(hybrid vechicle) 차량과 같이 경제적으로 주행하는 차량)이 실용화되고 있고, 이후, 다수의 이러한 유형의 차량들이 증가되고 있는 추세에 있다. Meanwhile, in order to protect the environment and improve fuel efficiency of a vehicle engine, a vehicle (eg, a vehicle that runs economically, such as a hybrid vechicle vehicle) that automatically stops the engine at the time of stopping such as waiting for a traffic signal has been put to practical use. Thereafter, a number of these types of vehicles are on the rise.
차량용 공조장치에서 냉동 사이클을 구성하는 압축기는 대체로 차량 엔진에 의하여 구동되는데, 전술한 경제적인 주행 차량에서, 엔진이 정지될 때마다 압축기도 정지되며, 이 경우 하절기에 냉방용 증발기의 온도는 증가하여 차량 객실로 송풍되는 공기의 온도도 증가하게 됨에 따라 차량 객실의 승객이 느끼는 냉방성을 떨어뜨리게 된다. In a vehicle air conditioner, a compressor constituting a refrigeration cycle is generally driven by a vehicle engine. In the above-described economical traveling vehicle, the compressor is also stopped every time the engine is stopped. In this case, the temperature of the cooling evaporator increases in summer. As the temperature of the air blown into the vehicle cabin is also increased, it decreases the cooling feeling of the passengers of the vehicle cabin.
최근 들어 엔진 정지와 동시에 냉동 사이클의 순환이 정지된 경우라도 차내 온도의 상승을 방지할 수 있도록 한 기술이 개발되고 있는 바, 이에 대한 종래 기술의 일례로 일본국 공개특허 2000-318431호의 차량용 공조장치에서 찾아 볼 수 있다.Recently, a technology has been developed to prevent an increase in the temperature of a vehicle even when the circulation of the refrigeration cycle is stopped at the same time as the engine stop. As an example of the related art, a vehicle air conditioner of Japanese Patent Laid-Open No. 2000-318431 has been developed. You can find it at
도 1은 종래의 차량용 공조장치의 일례를 나타낸 도면이다.1 is a view showing an example of a conventional vehicle air conditioner.
도시한 바와 같이 차량용 공조장치는 케이싱(4) 내부에 냉동 사이클을 구성하는 증발기(3) 및 냉장 보관기(축냉기)(2)를 구비하고 있다.As shown in the drawing, the vehicle air conditioner includes an
또한, 상기 케이싱(4)에는 공기를 실내에 송풍하기 위한 송풍기(5), 공기를 따뜻하게 하고, 차내에 온풍을 취출하는 히터 코어(6), 내외기 절환용 도어(7), 에어믹스 도어(8) 및 취출모드 절환용 도어(9)(10)(11)가 구비되어 있다.In addition, the casing (4) includes a blower (5) for blowing air into the room, a heater core (6) for warming the air, and blowing out warm air from the vehicle, a door (7) for switching the inside and outside air, and an air mix door ( 8) and take-out mode switching
상기와 같이 구성된 공조장치는 내외기 절환용 도어(7) 및 송풍기(5)를 작동시키고, 공기를 케이싱(4)에 통풍시키는 경우 증발기(3) 사이를 통풍하는 공기는 증발기(3)을 통류하는 매체와 열교환되어 냉각되고, 에어믹스 도어(8)의 작동에 따라서 온,냉풍이 혼합됨과 아울러 온도 조정이 되며, 취출모드 절환용 도어(9)(10)(11)의 작동에 따라 소정의 취출구로 차내에 공기가 송풍된다.The air conditioner configured as described above operates the
그리고, 엔진의 구동이 정지됨과 동시에 압축기가 정지하게 되면, 증발기(3)를 통과하는 냉매의 순환이 정지되고, 이에 따라 축냉기(2)에 축냉되어져 있던 냉기가 차내에 송풍되어 차실내의 승온을 방지할 수 있게 된다. When the engine stops driving and the compressor stops, the circulation of the refrigerant passing through the
그런데, 이러한 공조장치는 엔진을 정지시키기 위한 아이들 스톱(IDLE STOP) 시 배터리 용량이나 차량 상태에 의해서만 엔진 정지를 결정하고 있다. 따라서, 아이들 스톱이 반복됨으로써 축냉기(2)의 축냉제가 충분히 냉기를 축적하지 못할 수 있고, 축냉기(2)의 용량에 일정한 제한이 있음으로써 일정 시간이 경과하게 되면 축냉기의 냉기 토출이 불가능한 경우가 발생되는 문제점이 있었다. However, such an air conditioning apparatus determines the engine stop only by the battery capacity or the vehicle state at the idle stop for stopping the engine. Therefore, by repeating the idle stop, the cold storage agent of the
또한, 차량이 주행하여 엔진이 구동 중일 경우에는 압축기가 가동하여 축냉기가 계속적으로 냉기를 축적하여 과냉됨으로써 압축기에 의해 동력이 손실되는 문제점이 있었다. In addition, when the engine is running while the vehicle is running, the compressor is operated, and the cold storage is continuously accumulating cold air and there is a problem in that power is lost by the compressor.
이에 본 발명은 상기와 같은 문제점을 해결하기 위한 것으로서, 차량의 아이 들 스톱 시에도 축냉기가 냉기를 충분히 축적할 수 있도록 하고, 축냉기를 통해 냉기를 지속적으로 토출할 수 있도록 하는 축냉기를 구비한 차량용 공조장치의 제어방법을 제공하는데 그 목적이 있다. Accordingly, the present invention is to solve the above problems, it is provided with a cold storage to allow the cold storage accumulate enough cold air even when the vehicle stops, and to continuously discharge cold air through the cold storage. It is an object of the present invention to provide a control method of a vehicle air conditioner.
또한, 본 발명의 다른 목적은 차량이 주행 중일 경우라도 축냉기가 과냉되는 것을 방지하여 압축기에 의한 동력 손실을 저감할 수 있도록 하는 축냉기를 구비한 차량용 공조장치의 제어방법을 제공하는 것이다. In addition, another object of the present invention is to provide a control method of an air conditioner for a vehicle having a cooler to prevent the cooler from being overcooled even when the vehicle is running, thereby reducing power loss by the compressor.
상기와 같은 목적을 달성하기 위하여 본 발명에 따른 축냉기를 구비한 차량용 공조장치의 제어방법의 제 1실시 형태는, 공조케이스의 내부로 공기를 공급하는 송풍기가 설치되고, 공조케이스의 송풍 유로상에는 상기 송풍기에 의해 유입된 공기를 열교환에 의해 냉각시키는 증발기 및 증발기를 통과한 공기와 열교환하여 냉기를 축적할 수 있는 축냉기가 설치되는 차량용 공조장치의 제어방법으로서, 차량 엔진 구동 중 엔진을 정지시키기 위한 아이들 스톱 신호 발생 시 증발기 온도값 및 축냉기내의 축냉제 온도값을 검출하는 단계와; 상기 검출된 증발기 온도값으로부터 축냉제 온도값을 차감한 연산 온도값과 설정된 축냉제 축냉 완료 판단 온도값을 비교하는 단계와; 상기 연산 온도값이 축냉제 축냉 완료 판단 온도값보다 크면 엔진을 정지시켜 압축기를 정지시키고, 크지 않으면 엔진을 계속 구동시켜 압축기를 가동시키는 단계와; 상기 연산 온도값이 축냉제 축냉 완료 판단 온도값보다 커서 압축기가 정지되면 축냉제의 온도값을 검출하여 검출된 축냉제 온도값과 설정된 축냉제 방열 판단 온도값을 비교하는 단계와; 상기 축냉제 온도값이 축냉제 방열 판단 온도값보다 크면 엔진을 재구동시켜 압축기를 가동시키는 단계를 포함하는 것을 특징으로 한다. In order to achieve the above object, a first embodiment of a control method of an air conditioner for a vehicle equipped with a cold storage device according to the present invention is provided with a blower for supplying air into the air conditioning case, and is provided on the air flow passage of the air conditioning case. A control method of an air conditioner for a vehicle provided with an evaporator for cooling the air introduced by the blower by heat exchange and a cooler for accumulating cold air by heat exchange with air passing through the evaporator. Detecting an evaporator temperature value and a coolant temperature value in the cooler when an idle stop signal is generated; Comparing the computed temperature value obtained by subtracting the coolant temperature value from the detected evaporator temperature value and the set coolant storage temperature completion determination temperature value; Stopping the engine by stopping the engine when the calculated temperature value is greater than the stored coolant value of the coolant storage completion temperature; Detecting a temperature value of the coolant by comparing the detected coolant temperature with a set coolant heat dissipation judgment temperature value when the compressor temperature is greater than the calculated coolant coolant completion determination temperature value; And operating the compressor by restarting the engine when the coolant temperature value is greater than the coolant heat dissipation determination temperature value.
여기서, 상기 축냉제 온도값이 축냉제 방열 판단 온도값보다 크지 않으면 송풍기가 가동 중일 경우 일정 시간이 경과한 후에 송풍기의 풍량을 감소시키는 것이 좋다. Here, if the coolant temperature is not greater than the coolant heat dissipation determination temperature value, it is preferable to reduce the air volume of the blower after a predetermined time when the blower is in operation.
본 발명에 따른 축냉기를 구비한 차량용 공조장치의 제어방법의 제 2실시 형태는, 공조케이스의 내부로 공기를 공급하는 송풍기가 설치되고, 공조케이스의 송풍 유로상에는 상기 송풍기에 의해 유입된 공기를 열교환에 의해 냉각시키는 증발기 및 증발기를 통과한 공기와 열교환하여 냉기를 축적할 수 있는 축냉기가 설치되는 차량용 공조장치의 제어방법으로서, 차량 엔진 구동 시 증발기 온도값 및 축냉기내의 축냉제 온도값을 검출하는 단계와; 상기 검출된 증발기 온도값으로부터 축냉제 온도값을 차감한 연산 온도값과 설정된 축냉제 축냉 완료 판단 온도값을 비교하는 단계와; 상기 연산 온도값이 축냉제 축냉 완료 판단 온도값보다 크면 일정 시간 동안 압축기를 정지시키거나 압축기의 냉매 토출 용량을 감소시키고, 크지 않으면 엔진을 계속 구동시켜 압축기를 가동시키는 단계를 포함하는 것을 특징으로 한다. According to a second embodiment of a control method of a vehicle air conditioner equipped with a cooler according to the present invention, a blower is provided for supplying air to an interior of an air conditioning case, and the air introduced by the blower is provided on a blow passage of the air conditioning case. A control method of an air conditioner for a vehicle equipped with an evaporator to be cooled by heat exchange and a cooler capable of accumulating cold air by heat exchange with air passing through the evaporator, wherein the evaporator temperature value and the coolant temperature value in the cooler are stored when the engine is driven. Detecting; Comparing the computed temperature value obtained by subtracting the coolant temperature value from the detected evaporator temperature value and the set coolant storage temperature completion determination temperature value; Stopping the compressor for a predetermined time or reducing the refrigerant discharge capacity of the compressor when the calculated temperature value is greater than the determined value of the coolant storage temperature. .
이하, 첨부된 도면을 참조하여 본 발명을 상세히 설명하기로 한다.Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.
도 2는 본 발명에 따라 차량 엔진 구동 중 아이들 스톱 신호 발생 시의 제어방법을 나타내는 흐름도이다. 본 발명에 적용되는 차량용 공조장치는, 공조케이스 의 내부로 공기를 공급하는 송풍기가 설치되고, 공조케이스의 송풍 유로상에는 상기 송풍기에 의해 유입된 공기를 열교환에 의해 냉각시키는 증발기 및 증발기를 통과한 공기와 열교환하여 냉기를 축적할 수 있는 축냉기가 설치된다. 2 is a flowchart illustrating a control method when an idle stop signal is generated while driving a vehicle engine according to the present invention. In the vehicle air conditioner according to the present invention, a blower is provided to supply air to the inside of the air conditioner case, and the air passing through the evaporator and the evaporator to cool the air introduced by the blower by heat exchange on the air flow passage of the air conditioner case. Heat storage cooler that can accumulate cold air by heat exchange with
먼저, 차량이 주행하는 엔진 구동 중에 정차 등과 같이 엔진을 정지시키기 위한 아이들 스톱 신호가 발생되면 소정의 센서로 증발기 온도값 및 축냉기내의 축냉제 온도값을 검출한다(S110),(S120). First, when an idle stop signal for stopping the engine, such as a stop, is generated while driving the engine in which the vehicle is running, a predetermined sensor detects an evaporator temperature value and a coolant temperature value in the cooler (S110).
이어서, 상기 검출된 증발기 온도값으로부터 축냉제 온도값을 차감한 연산 온도값과 기 설정된 축냉제 축냉 완료 판단 온도값(예컨대, 2~3℃)을 비교하여 상기 연산 온도값이 축냉제 축냉 완료 판단 온도값보다 크면 축냉기가 냉기를 충분히 축적하고 있는 것으로 판단하여 엔진을 정지시켜 압축기를 정지시킨다(S130),(S150). Subsequently, the operation temperature value obtained by subtracting the coolant temperature value from the detected evaporator temperature value is compared with a preset coolant storage refrigeration completion determination temperature value (for example, 2 to 3 ° C.), and the operation temperature value is determined to be the coolant storage completion. If the temperature is greater than the temperature value, it is determined that the cold storage accumulate enough cold air to stop the engine to stop the compressor (S130) (S150).
그러나, 상기 검출된 증발기 온도값으로부터 축냉제 온도값을 차감한 연산 온도값과 설정된 축냉제 축냉 완료 판단 온도값을 비교하여 상기 연산 온도값이 축냉제 축냉 완료 판단 온도값보다 크지 않으면 축냉기가 냉기를 충분히 축적하고 있지 않은 것으로 판단하여 축냉기에 냉기가 더 축적될 수 있도록 엔진을 계속 구동시켜 압축기를 가동시킨다(S130),(S140). However, if the computed temperature value is not greater than the stored coolant storage refrigeration completion judgment temperature value by comparing the computed temperature value obtained by subtracting the coolant temperature value from the detected evaporator temperature value and the set coolant storage refrigeration completion judgment temperature value, the cooler is cold air. Determining that the gas is not sufficiently stored, the engine is continuously driven to further accumulate cold air in the cold storage (S130), (S140).
이어서, 상기 연산 온도값이 축냉제 축냉 완료 판단 온도값보다 커서 압축기가 정지되면 축냉제의 온도값을 검출하고 검출된 축냉제 온도값과 기 설정된 축냉제 방열 판단 온도값(예컨대, 15~20℃)을 비교하여, 상기 축냉제 온도값이 축냉제 방열 판단 온도값보다 크면 축냉기가 방열된 것으로 판단하여 축냉기에 냉기가 축 적될 수 있도록 엔진을 재구동시켜 압축기를 가동시킨다(S160),(S180). Subsequently, when the compressor temperature is greater than the operation temperature value of the storage coolant storage judgment, the temperature value of the storage coolant is detected, and the detected storage temperature of the storage coolant and the predetermined storage heat dissipation judgment temperature value (for example, 15 to 20 ° C). In comparison, when the coolant temperature value is greater than the coolant heat dissipation determination temperature value, it is determined that the coolant is dissipated and the compressor is restarted to operate the compressor so that cold air is accumulated in the coolant (S160). S180).
그러나, 상기 연산 온도값이 축냉제 축냉 완료 판단 온도값보다 커서 압축기가 정지되면 축냉제의 온도값을 검출하고 검출된 축냉제 온도값과 설정된 축냉제 방열 판단 온도값을 비교하여, 상기 축냉제 온도값이 축냉제 방열 판단 온도값보다 크지 않으면 축냉기가 아직 방열되지 않은 것으로 판단하여 송풍기가 가동 중일 경우 냉방 효과가 오랫동안 지속될 수 있도록 일정 시간(예컨대, 10초) 경과 후 송풍기의 풍량을 감소시킨다(S160),(S170). However, when the compressor temperature is greater than the operation temperature value is greater than the storage temperature of the storage coolant, the temperature of the storage coolant is detected and the detected storage temperature of the storage coolant is compared with the set storage temperature of the storage coolant. If the value is not greater than the coolant heat dissipation judgment temperature value, it is determined that the cooler has not been dissipated yet, and if the blower is in operation, the air volume of the blower is reduced after a certain time (for example, 10 seconds) so that the cooling effect can be maintained for a long time. S160) and (S170).
도 3은 본 발명에 따라 차량 주행 시의 제어방법을 나타내는 흐름도로서, 동력 손실을 저감할 수 있는 일종의 Economic 모드에 관한 것이다.3 is a flowchart illustrating a control method when driving a vehicle according to the present invention, and relates to a kind of economic mode capable of reducing power loss.
먼저, 차량이 주행하여 엔진이 구동 중일 때 소정의 센서로 증발기 온도값 및 축냉기내의 축냉제 온도값을 검출한다(S210),(S220). First, when the vehicle is driven and the engine is being driven, a predetermined sensor detects an evaporator temperature value and a coolant temperature value in the cooler (S210).
이어서, 상기 검출된 증발기 온도값으로부터 축냉제 온도값을 차감한 연산 온도값과 기 설정된 축냉제 축냉 완료 판단 온도값(예컨대, 2~3℃)을 비교하여, 상기 연산 온도값이 축냉제 축냉 완료 판단 온도값보다 크면 축냉기가 냉기를 충분히 축적하고 있는 것으로 판단하여 일정 시간 동안 압축기를 정지시키거나 압축기의 냉매 토출 용량을 감소시킨다(S230),(S240). 즉, 축냉기가 충분히 냉각되어 있기 때문에 압축기에 의한 동력 소모를 저감시킬 수 있도록 고정 용량형 압축기인 경우에는 압축기를 정지시키고, 가변 용량형인 경우에는 냉매 토출 용량을 감소시키는 것이다. Subsequently, the operation temperature value obtained by subtracting the coolant temperature value from the detected evaporator temperature value is compared with a preset coolant storage refrigeration completion determination temperature value (for example, 2 to 3 ° C), and the calculated temperature value is the coolant storage completion. If the temperature is greater than the determined temperature value, it is determined that the cold storage air sufficiently accumulates the cold air, thereby stopping the compressor for a predetermined time or reducing the refrigerant discharge capacity of the compressor (S230). That is, in the case of the fixed capacity type compressor, the compressor is stopped, and in the case of the variable capacity type, the refrigerant discharge capacity is reduced so that the cooler is sufficiently cooled.
그러나, 상기 검출된 증발기 온도값으로부터 축냉제 온도값을 차감한 연산 온도값과 기 설정된 축냉제 축냉 완료 판단 온도값을 비교하여, 상기 연산 온도값이 축냉제 축냉 완료 판단 온도값보다 크지 않으면 축냉기가 냉기를 충분히 축적하고 있지 않은 것으로 판단하여 축냉기에 냉기가 더 축적될 수 있도록 엔진을 계속적으로 구동시켜 압축기를 가동시킨다(S230),(S250).However, the operation temperature value obtained by subtracting the storage coolant temperature value from the detected evaporator temperature value is compared with the predetermined storage coolant storage refrigeration completion judgment temperature value, and if the calculation temperature value is not greater than the storage coolant storage refrigeration completion judgment temperature value, the storage cooler Since it is determined that the cold air is not sufficiently stored, the engine is continuously driven to allow the cold air to accumulate in the cold storage (S230) and (S250).
한편, 본 발명에 따른 축냉기를 구비한 차량용 공조장치의 제어방법을 한정된 실시예에 따라 설명하였지만, 본 발명의 범위는 특정 실시예에 한정되는 것은 아니며, 본 발명과 관련하여 통상의 지식을 가진자에게 자명한 범위내에서 여러 가지의 대안, 수정 및 변경하여 실시할 수 있다. 예컨대, 축냉제 축냉 완료 판단 온도값 및 축냉제 방열 판단 온도값은 상황에 맞도록 적절히 변경할 수 있다. On the other hand, while the control method of the vehicle air conditioner equipped with the cooler according to the present invention has been described according to a limited embodiment, the scope of the present invention is not limited to the specific embodiment, and having ordinary knowledge in connection with the present invention Many alternatives, modifications and variations can be made without departing from the scope of the disclosure. For example, the heat storage coolant completion judgment temperature value and the heat storage coolant heat radiation determination temperature value can be appropriately changed to suit the situation.
이상에서 설명한 바와 같이, 본 발명에 따른 축냉기를 구비한 차량용 공조장치의 제어방법은, 축냉기의 냉기를 충분히 축적하고 효율적으로 사용함으로써 차량의 실내 쾌적성을 유지시킬 수 있는 잇점이 있다. 또한, 차량 주행 중에도 축냉기의 과냉을 방지함으로써 압축기에 의한 동력 손실을 저감시킬 수 있는 잇점이 있다. As described above, the control method of the vehicle air conditioner provided with the cooler according to the present invention has the advantage that the indoor comfort of the vehicle can be maintained by accumulating and efficiently using the cool air of the cooler. In addition, there is an advantage that the power loss caused by the compressor can be reduced by preventing overcooling of the cold storage cooler while the vehicle is running.
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| KR101941425B1 (en) * | 2012-12-12 | 2019-01-23 | 한온시스템 주식회사 | Air conditioning system for automotive vehicles |
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| JP2000355214A (en) | 1999-06-11 | 2000-12-26 | Bosch Automotive Systems Corp | Cold radiation control method of regenerator and estimating method of cold regenerating quantity |
| JP2003136946A (en) | 2001-11-07 | 2003-05-14 | Sanden Corp | Air-conditioner device for vehicle |
| JP2005349941A (en) | 2004-06-10 | 2005-12-22 | Nissan Motor Co Ltd | Cold storage type air conditioner for vehicle |
| JP2006347535A (en) | 2005-05-16 | 2006-12-28 | Denso Corp | Air conditioner for vehicle and control method of air conditioning |
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| JP2000355214A (en) | 1999-06-11 | 2000-12-26 | Bosch Automotive Systems Corp | Cold radiation control method of regenerator and estimating method of cold regenerating quantity |
| JP2003136946A (en) | 2001-11-07 | 2003-05-14 | Sanden Corp | Air-conditioner device for vehicle |
| JP2005349941A (en) | 2004-06-10 | 2005-12-22 | Nissan Motor Co Ltd | Cold storage type air conditioner for vehicle |
| JP2006347535A (en) | 2005-05-16 | 2006-12-28 | Denso Corp | Air conditioner for vehicle and control method of air conditioning |
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