KR0152185B1 - Automotive indoor air ventilation system and control method - Google Patents
Automotive indoor air ventilation system and control method Download PDFInfo
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- KR0152185B1 KR0152185B1 KR1019950052972A KR19950052972A KR0152185B1 KR 0152185 B1 KR0152185 B1 KR 0152185B1 KR 1019950052972 A KR1019950052972 A KR 1019950052972A KR 19950052972 A KR19950052972 A KR 19950052972A KR 0152185 B1 KR0152185 B1 KR 0152185B1
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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
- B60H1/24—Devices purely for ventilating or where the heating or cooling is irrelevant
- B60H1/248—Air-extractors, air-evacuation from the vehicle interior
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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
- B60H1/00735—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
- B60H1/008—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 air quality
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
본 발명은 자동차의 실내 및 실외공기의 오염도 및 산소의 결핍도를 측정하고, 그에따라 실내의 오염된 공기를 외부로 배출하거나 외부의 신선한 공기를 실내로 흡입하며 외부의 공기가 실내의 공기보다 오염되어 있는 경우에는 상기 외부공기의 흡입동작을 중지시켜 차내의 공기를 항상 신선하게 유지할 수 있다.The present invention measures the degree of pollution and oxygen deficiency of the indoor and outdoor air of the vehicle, accordingly to discharge the indoor polluted air to the outside or inhale fresh air into the room and the outside air is more polluted than the indoor air In this case, the suction operation of the external air can be stopped to keep the air in the vehicle fresh.
상기의 목적을 달성하기 위하여, 본 발명은 자동차 실내 및 실외공기의 오염정도를 검출하는 센서들과, 실내공기의 오염정도에 따라 실내의 오염된 공기를 외부로 배출하고 외부의 신선한 공기를 흡입하는 팬(Fan)과, 상기 센서의 측정결과에 따라 상기 팬을 제어하는 콘트롤러를 구비하여 실내의 공기를 청정하게 유지하도록 한 것을 특징으로 한다.In order to achieve the above object, the present invention provides a sensor for detecting the degree of pollution of the indoor and outdoor air of the vehicle, and the indoor air is discharged to the outside in accordance with the degree of pollution of the indoor air to the outside to suck in fresh air A fan and a controller for controlling the fan according to the measurement result of the sensor are provided to keep the indoor air clean.
Description
제1도는 본 발명에 따른 자동차 실내공기 자동 환기장치의 구성도.1 is a block diagram of an automotive indoor air ventilation system according to the present invention.
제2도는 본 발명에 따른 자동차 실내공기 자동 환기장치의 제어방법을 나타낸 흐름도.Figure 2 is a flow chart showing a control method of the automotive indoor air ventilation system according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
S1 : 실내 산소 결핍도 측정센서 S2 : 실내공기 오염도 측정센서S1: Indoor oxygen deficiency sensor S2: Indoor air pollution sensor
S3 : 외부공기 오염도 측정센서 M : 팬(Fan)S3: External air pollution measuring sensor M: Fan
SW : 시동스위치 10 : 콘트롤러SW: Start switch 10: Controller
본 발명은 자동차 실내공기 자동 환기장치 및 그 제어방법에 관한 것으로서, 더욱 상세하게는 자동차 실내에 산소가 부족하거나 공기가 오염되었을 경우에 센서로 이를 감지하고 기설정된 한계치에 도달하면 실내공기 환기전용 팬(M)을 작동시켜 외부로 오염된 실내공기를 배출하고 신선한 외부공기를 실내로 유입시켜 차내의 공기를 항상 신선하게 유지하는 자동차 실내공기 자동환기장치 및 그 제어방법에 관한 것이다.The present invention relates to a vehicle indoor air automatic ventilation device and a control method thereof, and more particularly, when the oxygen is insufficient in the car interior or the air is contaminated, the sensor detects this and reaches a preset limit fan for indoor air ventilation. The present invention relates to a vehicle indoor air automatic ventilation device and a method of controlling the same, by operating (M) to discharge indoor air contaminated to the outside and introducing fresh outside air into the room to keep fresh air in the vehicle at all times.
일반적으로 차내의 운전자 또는 승객의 흡연으로 인하여 자동차 실내의 공기가 오염되거나 외부와 밀폐된 상태에서의 장시간의 운전에 의해 자동차 실내공기에 산소가 부족하게 되면, 운전자 또는 승객은 자동차 도어 윈도우를 열어 실내의 오염된 공기를 외부로 배출하고 신선한 외부공기를 실내로 유입시켜 환기하거나, 차내에 설치된 공기 순환모드 스위치를 외부공기 흡입모드로 설정하여 실내의 공기를 환기시켰다.Generally, when the driver's or passenger's smoking in the car is contaminated with air or the oxygen is insufficient in the car's indoor air due to long periods of driving in an airtight condition, the driver or passenger opens the car door window Air was discharged to the outside and fresh air was introduced into the room for ventilation, or the air circulation mode switch installed in the car was set to the outside air intake mode to ventilate the room air.
그러나, 전자의 경우에는 자동차 도어 윈도우를 개방함에 따라 외부의 소음이 실내로 유입되어 자동차의 안전운행에 방해가 되며, 차체의 저항이 커져 연비가 떨어질 뿐만 아니라 자동차가 정지하고 있는 경우에는 오염된 공기의 배출이 용이하지 못하다. 또한 우천시에는 윈도우를 개방할 수 없다는 문제점이 있다.However, in the former case, when the door of the car is opened, external noise flows into the room, which hinders the safe operation of the car. In addition, the resistance of the car body increases, resulting in lower fuel efficiency, and contaminated air when the car is stopped. The discharge of is not easy. In addition, there is a problem that can not open the window in the rain.
또한, 후자의 경우에는 운전자가 공기 순환모드 스위치를 조정함에 따라 전방주시에 소홀하게 되어 사고의 위험이 존재하며, 아울러 공기 순환모드 스위치를 계속 외부공기 흡입모드로 유지할 경우에는 전방에 주행하는 차의 배기가스가 실내로 유입되어 실내공기를 더욱 오염시킬 수 있다는 문제점이 있었다.In the latter case, when the driver adjusts the air circulation mode switch, the driver is neglected in front of the vehicle and there is a risk of an accident.In addition, if the air circulation mode switch is kept in the external air intake mode, There was a problem that the exhaust gas is introduced into the room to further contaminate the indoor air.
본 발명은 상기와 같은 종래의 제반 문제점을 해결하기 위해 제안된 것으로서, 본 발명의 목적은 자동차 실내공기에 산소가 부족하거나 흡연등으로 실내공기가 오염되었을 경우에 센서로 이를 감지하고, 기설정된 한계치에 도달하면 실내공기 환기전용 팬(Fan)을 작동시켜 외부로 오염된 실내공기를 배출하고 신선한 외부의 공기를 실내로 유입시켜 차내의 공기를 항상 신선하게 유지하는 자동차 실내공기 자동 환기장치 및 그 제어방법을 제공함에 있다.The present invention has been proposed to solve the above-mentioned conventional problems, an object of the present invention is to detect this when the indoor air is contaminated by the lack of oxygen or smoking in the vehicle indoor air, a predetermined threshold value Auto air ventilator and its control to operate indoor air ventilation fan to discharge indoor air polluted to the outside and to keep fresh air in the car by introducing fresh outside air into the room. In providing a method.
상기와 같은 목적을 달성하기 위하여 본 발명은, 자동차 실내공기의 산소결핍도를 측정하는 제1 센서와, 자동차 실내공기의 오염도를 측정하는 제2 센서와, 자동차 외부공기의 오염도를 측정하는 제3 센서와, 차실내의 공기를 외부로 배출하거나 실외의 공기를 차실내로 흡입하는 환기전용 팬(Fan)과, 상기 센서들의 검출결과에 따라 상기 차실내의 산소 결핍도가 미리 설정된 한계치 이상이면 환기전용 팬을 정구동하여 실외의 공기를 흡입하고, 차실내의 오염도가 미리 설정된 한계치 이상인 상태에서 차실내의 오염도가 실외의 오염도 보다 큰 경우에는 환기전용 팬을 역구동하여 차실내의 공기를 외부로 배출시키는 콘트롤러를 구비하여 자동차 실내 공기를 항상 쾌적하게 유지하도록 한 것을 특징으로 한다.In order to achieve the above object, the present invention, a first sensor for measuring the oxygen deficiency of the vehicle interior air, a second sensor for measuring the pollution degree of the vehicle indoor air, and a third for measuring the pollution degree of the vehicle outside air Ventilation fan (Fan) for discharging the air in the cabin to the outside or intake of outdoor air into the cabin, and the oxygen deficiency in the cabin according to the detection results of the sensors if the oxygen deficiency in the interior is above the predetermined threshold A dedicated fan is driven to inhale the outside air, and when the pollution level in the cabin is greater than the preset limit when the pollution level in the cabin is higher than the outdoor pollution level, the ventilation fan is reversed to discharge the air inside the cabin. It is characterized in that it is provided with a controller to keep the interior air of the car at all times comfortable.
또한 본 발명은, 자동차 실내공기 자동 환기장치에 적용되는 제어방법에 있어서, 자동차가 시동되면 콘트롤러가 제1 내지 제3 센서들의 출력을 일정시간마다 검출하여 그 평균값을 산출하는 제1단계와, 상기 제1단계에서 산출된 제1 및 제2 센서의 평균값을 미리 설정된 각각의 한계치와 비교하고 또한 제3 센서의 평균값을 제2 센서의 평균값과 비교하는 제2단계와, 상기 제2단계의 비교결과 제1 센서에서 검출된 산소의 결핍도가 상기 한계치보다 낮으면 콘트롤러가 제1 센서에서 검출된 산소의 결핍도가 상기 한계치보다 높아지도록 환기전용 팬을 구동하여 외부의 공기를 자동차 실내로 흡입하는 제3단계와, 상기 제2단계의 비교결과 제2 센서에서 검출된 실내공기의 오염도가 상기 한계치보다 높고 또한 실내공기의 오염도가 실외공기의 오염도보다 크면, 콘트롤러가 제2 센서에서 검출된 실내공기의 오염도가 한계치보다 낮아지도록 상기 환기전용 팬을 구동하여 실내의 오염된 공기를 외부로 배출하는 제4단계를 구비하여 이루어진다.In another aspect, the present invention provides a control method applied to a vehicle indoor air ventilation system, the first step of the controller detects the output of the first to third sensors every predetermined time and calculates an average value when the vehicle is started; A second step of comparing the average value of the first and second sensors calculated in the first step with respective preset thresholds, and comparing the average value of the third sensor with the average value of the second sensor; and a comparison result of the second step When the oxygen deficiency detected by the first sensor is lower than the threshold, the controller drives a fan for ventilation so as to draw outside air into the vehicle interior so that the oxygen deficiency detected by the first sensor is higher than the threshold. As a result of the comparison between the third step and the second step, the pollution degree of the indoor air detected by the second sensor is higher than the threshold and the pollution degree of the indoor air is larger than that of the outdoor air. , The controller is made to be lower than the limit of the contamination level of room air detected by the second sensor, comprising a fourth step of driving the ventilation fan only discharge the polluted air in the room to the outside.
이하, 첨부된 도면을 참조하여 본 발명의 바람직한 일실시예를 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
제1도는 본 발명에 따른 자동차 실내공기 자동 환기장치의 구성도이다.1 is a block diagram of an automotive indoor air ventilation system according to the present invention.
본 발명에 따른 환기장치는 자동차 실내에 설치되어 실내의 산소량 및 이산화탄소량을 센싱하는 실내 산소 결핍도 측정센서(S1)와, 자동차 실내에 설치되어 담배연기, 매연등에 의한 실내공기의 오염도를 센싱하는 실내 공기오염도 측정센서(S2)와, 자동차 외부에 설치되어 외부공기의 오염도를 센싱하는 외부공기 오염도 측정센서(S3)와, 실내공기의 오염정도에 따라 오염된 실내공기를 외부로 배출하고 외부의 신선한 공기를 실내로 유입시키는 환기전용 팬(Fan)(M)과, 상기 센서들(S1,S2,S3)의 센싱결과에 따라 상기 환기전용 팬(M)을 제어하는 콘트롤러(10)로 구성된다.Ventilation device according to the present invention is installed in the interior of the car to detect the indoor oxygen deficiency degree sensor (S1) for sensing the amount of oxygen and carbon dioxide in the room, and installed in the car to sense the pollution of indoor air by tobacco smoke, smoke, etc. Indoor air pollution measurement sensor (S2), external air pollution measurement sensor (S3) installed outside the vehicle senses the pollution of the outside air, and indoor air polluted according to the degree of pollution of the indoor air to the outside and Ventilation fan (M) for introducing fresh air into the room, and a controller 10 for controlling the ventilation fan (M) in accordance with the sensing results of the sensors (S1, S2, S3). .
상기 외부공기 오염도 측정센서(S3)는 상기 환기전용 팬(M) 근처에 설치되는 것이 바람직하며, 상기 콘트롤러(10)는 배터리로 부터 전원을 인가받으며, 전원 출력단과 콘트롤러(10) 사이에 시동스위치(SW)가 설치되어 있다.The external air pollution measurement sensor (S3) is preferably installed near the ventilation fan (M), the controller 10 is supplied with power from the battery, the start switch between the power output terminal and the controller (10) (SW) is installed.
상기와 같이 구성된 본 발명의 작용효과를 제2도를 참조하여 설명하기로 한다.Effects of the present invention configured as described above will be described with reference to FIG.
제2도는 제1도와 같이 구성된 자동차 실내공기 자동 환기장치의 제어방법을 나타낸 흐름도이다.2 is a flowchart illustrating a control method of a vehicle indoor air automatic ventilation device configured as shown in FIG. 1.
운전자가 시동스위치(SW)를 조작하여 자동차가 시동되면(20) 콘트롤러(10)는 일정시간, 약 3분간 센서들(S1,S2,S3)의 출력을 검출하여 그 평균값을 산출한다(21).When the driver starts the vehicle by operating the start switch SW 20, the controller 10 detects the output of the sensors S1, S2, and S3 for a predetermined time and calculates an average value thereof (21). .
상기 평균값은 시간이 경과하여 실내공기의 오염도 및 산소의 결핍도가 변화됨에 따라 계속하여 갱신(update)된다.The mean value is continuously updated as the pollution degree of the indoor air and the deficiency degree of oxygen change over time.
센서들(S1,S2,S3)의 평균값이 산출되면, 이 평균값은 각각의 한계치(R1,R2) 및 외부공기 오염도 측정센서(S3)에서 검출되어 평균화된 외부공기의 오염도와 비교된다(22a,22b,22c). 단계(22a)에서의 비교결과 실내 산소 결핍도 측정센서(S1)에서 검출된 실내공기의 산소 결핍도가 한계치(R1)보다 낮으면 콘트롤러(10)는 전류를 I2 방향으로 인가하여 외부공기가 실내로 유입되도록 환기전용 팬(M)을 구동시켜 실내 산소 결핍도 측정센서(S1)에서 검출된 산소의 결핍도가 한계치(R1)보다 높아지도록 제어한다(23).When the average value of the sensors S1, S2 and S3 is calculated, this average value is detected by the respective limit values R1 and R2 and the external air pollution measuring sensor S3 and compared with the averaged air pollution level 22a, 22b, 22c). As a result of the comparison in step 22a, if the oxygen deficiency of the indoor air detected by the indoor oxygen deficiency measuring sensor S1 is lower than the threshold value R1, the controller 10 applies a current in the direction I2 so that the external air is indoors. By controlling the ventilation fan (M) to be introduced into the control unit so that the oxygen deficiency detected by the indoor oxygen deficiency measurement sensor (S1) is higher than the threshold (R1) (23).
한편, 상기 단계(22b 및 22c)에서의 비교결과 실내공기 오염도 측정센서(S2)에서 검출된 실내공기의 오염도가 한계치(R2)보다 높고, 또한 실외공기 오염도 측정센서(S3)에서 검출된 실외공기의 오염도 보다 크면, 콘트롤러(10)는 전류를 I1 방향으로 인가하여 실내의 오염된 공기가 외부로 배출되도록 환기전용 팬(M)을 구동시켜 실내공기 오염도 측정센서(S2)에서 검출된 실내공기의 오염도가 한계치보다 낮아지도록 제어한다(24).Meanwhile, as a result of the comparison in the steps 22b and 22c, the pollution degree of the indoor air detected by the indoor air pollution degree sensor S2 is higher than the limit value R2, and the outdoor air detected by the outdoor air pollution degree sensor S3. If the pollution degree is greater than, the controller 10 applies a current in the direction I1 to drive the ventilation fan M so that the indoor polluted air is discharged to the outside of the indoor air detected by the indoor air pollution measurement sensor S2. The contamination is controlled to be lower than the threshold (24).
한편, 상기 환기전용 팬(M)이 외부공기를 실내로 흡입하는 동작중 외부공기 오염도 측정센서(S3)에서 검출된 외부공기의 오염도가 실내공기의 오염도 보다 높으면 콘트롤러(10)는 팬(M)으로 인가되는 전류를 차단하여 외부공기의 흡입동작을 중지시킨다.On the other hand, if the pollution degree of the outside air detected by the outside air pollution degree sensor (S3) during the operation of the ventilation fan (M) to suck the outside air into the room higher than the pollution degree of the indoor air, the controller 10 is a fan (M) It stops the suction operation of external air by cutting off the applied current.
상기와 같이 본 발명은 자동차의 실내 및 실외에 공기의 오염도 및 산소의 결핍도를 측정하는 센서를 설치하고, 센서의 측정결과에 따라 실내의 오염된 공기를 외부로 배출하거나 외부의 신선한 공기를 실내로 흡입하며 외부공기가 실내공기 보다 오염되어 있는 경우에는 상기 외부공기 흡입동작을 중지시켜 차내의 공기를 항상 신선하게 유지함에 따라 쾌적한 운전환경을 유지할 수 있다.As described above, the present invention provides a sensor for measuring the pollution degree of the air and the lack of oxygen in the indoor and outdoor of the vehicle, according to the measurement results of the sensor to discharge the indoor polluted air to the outside or the fresh air outside the room If the outside air is more polluted than the indoor air, the outside air suction operation is stopped to keep the air in the car fresh all the time, thereby maintaining a comfortable driving environment.
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| KR1019950052972A KR0152185B1 (en) | 1995-12-20 | 1995-12-20 | Automotive indoor air ventilation system and control method |
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