KR100435369B1 - Method for controlling a cooling fan operating condition - Google Patents
Method for controlling a cooling fan operating condition Download PDFInfo
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- KR100435369B1 KR100435369B1 KR10-2000-0076726A KR20000076726A KR100435369B1 KR 100435369 B1 KR100435369 B1 KR 100435369B1 KR 20000076726 A KR20000076726 A KR 20000076726A KR 100435369 B1 KR100435369 B1 KR 100435369B1
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- Prior art keywords
- cooling fan
- water temperature
- cooling water
- vehicle speed
- cooling
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/10—Controlling of coolant flow the coolant being cooling-air by throttling amount of air flowing through liquid-to-air heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/12—Filtering, cooling, or silencing cooling-air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2025/00—Measuring
- F01P2025/08—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2025/00—Measuring
- F01P2025/60—Operating parameters
- F01P2025/66—Vehicle speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2070/00—Details
- F01P2070/10—Details using electrical or electromechanical means
Abstract
본 발명은 차속센서에서 전달되는 현재의 차속, 아이들 스위치의 작동상태 및 냉각수온도를 바탕으로 엔진 아이들시에 불필요하게 냉각팬이 작동되는 현상을 막아 소음을 줄이고 밧데리의 소모에 의한 연료의 낭비를 줄일 수 있는 냉각팬 작동 제어방법에 관한 것으로, 이 제어방법을 보면, 제어유닛(14)은 차속센서(10)에서 전달되는 신호를 바탕으로 하여 현재의 차속이 기준값 이상인 경우에는 냉각수온 센서(2)로부터의 냉각수온에 의거하여 냉각팬(6)의 작동상태를 제어하는 한편, 차속이 기준값 이하인 경우에는 아이들 스위치(12)로부터의 온/오프신호와 냉각수온 센서(2)로부터의 냉각수온 및 타이머(14)로부터의 경과시간에 의거하여 냉각팬(6)의 작동상태를 제어하게 된다.The present invention prevents unnecessary fan operation during engine idle based on the current vehicle speed transmitted from the vehicle speed sensor, the operating state of the idle switch, and the coolant temperature to reduce noise and reduce fuel waste due to battery consumption. Cooling fan operation control method that can be seen, this control method, the control unit 14 based on the signal transmitted from the vehicle speed sensor 10, if the current vehicle speed is more than the reference value cooling water temperature sensor (2) The operating state of the cooling fan 6 is controlled on the basis of the cooling water temperature from the controller, and when the vehicle speed is lower than the reference value, the on / off signal from the idle switch 12 and the cooling water temperature and timer from the cooling water temperature sensor 2 are controlled. The operating state of the cooling fan 6 is controlled based on the elapsed time from (14).
Description
본 발명은 냉각팬 작동 제어방법에 관한 것으로, 보다 상세하게는, 차속센서에서 전달되는 현재의 차속, 아이들 스위치의 작동상태 및 냉각수온도를 바탕으로엔진 아이들시에 불필요하게 냉각팬이 작동되는 현상을 방지할 수 있는 냉각팬 작동 제어방법에 관한 것이다.The present invention relates to a cooling fan operation control method, and more particularly, to the phenomenon that the cooling fan is unnecessarily operated when the engine is idle based on the current vehicle speed transmitted from the vehicle speed sensor, the operating state of the idle switch, and the coolant temperature. The present invention relates to a cooling fan operation control method that can be prevented.
자동차용 엔진에는 주행조건과 전속도범위에 걸쳐서 엔진이 정상 작동온도를 유지하도록 하기 위한 냉각장치가 구비되어 있다. 즉, 엔진의 실린더 내에서 혼합기가 연소될 때 연소가스의 최대온도는 약 2500℃까지 상승하게 된다. 이 열 중의 일부는 실린더 벽과 실린더 헤드 및 피스톤으로 전달되므로 윤활특성을 고려하여 어느 정도까지는 이를 제거하여야 하며, 이를 위해서 냉각장치를 사용하게 된다.Automotive engines are equipped with a cooling device for maintaining the engine at a normal operating temperature over the driving conditions and the full speed range. That is, when the mixer is combusted in the cylinder of the engine, the maximum temperature of the combustion gas is raised to about 2500 ℃. Some of this heat is transferred to the cylinder wall, the cylinder head and the piston, so it must be removed to some extent in consideration of the lubrication characteristics, for which a cooling device is used.
도 1과 도 2는 종래의 냉각팬 작동 제어방법을 나타낸 블록도 및 흐름도이다. 종래의 경우, 제어유닛(ECU)(4)은 냉각수온 센서(2)로부터 입력되는 냉각수의 온도만을 바탕으로 냉각팬(6)의 작동상태를 제어하였다. 즉, 냉각수온 센서(2)에 의해 검출한 냉각수온이 98℃보다 클 때(단계S1에서 예)에는 냉각팬을 온시키고(단계S2), 냉각수온이 93℃보다 작을 때(단계S3에서 예)에는 냉각팬을 오프시킨다.1 and 2 is a block diagram and a flow chart illustrating a conventional cooling fan operation control method. In the conventional case, the control unit (ECU) 4 controls the operating state of the cooling fan 6 based only on the temperature of the cooling water input from the cooling water temperature sensor 2. That is, when the cooling water temperature detected by the cooling water temperature sensor 2 is greater than 98 ° C (YES in step S1), the cooling fan is turned on (step S2), and when the cooling water temperature is less than 93 ° C (YES in step S3). ) Turns off the cooling fan.
그러나, ECU가 냉각팬을 제어하는 방식에서 엔진 냉각수 입구 제어방식을 채택하는 경우에는 써머스탯 밸브가 특정온도에서 특정 스트로크로 고정되는 경우가 종종 발생한다. 이것은 엔진에서 발생한 열을 냉각된 냉각수와 라디에이터에서 공급되는 차가운 냉각수가 평형을 이룰 때에 발생한다. 이때, 안정화되는 냉각수 온도는 엔진 발열량에 의해 결정되기 때문에, 동일한 배기량을 갖는 동일한 엔진에서도 안정화(포화)되는 온도는 제각기 다르게 된다.However, when the ECU adopts the engine coolant inlet control method for controlling the cooling fan, the thermostat valve is often fixed at a specific stroke at a specific temperature. This occurs when the heat generated by the engine is in equilibrium with the cooled coolant and the coolant supplied from the radiator. At this time, since the cooling water temperature to be stabilized is determined by the engine heat generation amount, the temperature to be stabilized (saturated) in the same engine having the same displacement is different.
이러한 경우에 냉각수온을 바탕으로 냉각팬을 제어하는 종래의 방식으로는 엔진간에 안정화되는 냉각수 온도를 충족시킬 수 없는 부분이 생긴다. 즉, 냉각팬의 온/오프 온도만 설정하는 방식에서는 ECU내에서 냉각팬의 작동을 설정하는 점이 하나밖에 없기 때문에 이러한 현상이 발생한다. 이와 같은 종래의 제어방식은 엔진간의 진동 또는 주변환경 조건에 따라 엔진 발열량이 달라질 수 있으므로, 동일한 엔진이라 할지라도 특정온도에서 안정화되는 온도가 달라질 수 있기 때문에, 개발시에 설정한 온도 이상의 범위로 냉각수온도가 안정화되어 냉각팬이 오프되지 않게 되어 소비자 불만의 원인이 된다. 즉, 종래의 냉각팬 작동 제어방법은 전체 엔진의 평균 냉각수 안정화수준(98℃/93℃)으로 설정되어 있어, 아이들시에 냉각팬이 상시 작동함으로써 소음이 발생하게 되고 밧데리의 과다 소모로 인해 연료의 낭비를 유발하게 된다.In this case, the conventional method of controlling the cooling fan based on the coolant temperature results in a portion that cannot satisfy the coolant temperature stabilized between engines. That is, in the method of setting only the on / off temperature of the cooling fan, this phenomenon occurs because there is only one point of setting the operation of the cooling fan in the ECU. In the conventional control method, the amount of heat generated by the engine may vary according to vibrations between the engines or the ambient conditions. Since the temperature stabilized at a specific temperature may vary even with the same engine, the coolant temperature may be higher than the temperature set at the time of development. Is stabilized and the cooling fan is not turned off, which causes consumer dissatisfaction. That is, the conventional cooling fan operation control method is set to the average cooling water stabilization level (98 ℃ / 93 ℃) of the entire engine, the noise is generated by the cooling fan at all times during idle, and the fuel is consumed due to excessive consumption of the battery It causes waste.
본 발명은 엔진의 발열량과 라디에이터로부터 유입되는 냉각수가 평형을 이룸으로써 발생되는 냉각팬의 계속적인 작동현상을 근본적으로 개선하기 위하여 초기에 설정한 냉각수 팬 오프온도를 소정시간 학습을 실시하여 냉각수 온도가 소정시간 이상 유지하는 경우에 강제로 팬을 오프시킴으로써, 냉각팬의 계속적인 작동문제를 해결하여 소음의 발생을 억제하고 및 연료소비를 줄일 수 있는 냉각팬 작동 제어방법을 제공하는데 그 목적이 있다.In order to fundamentally improve the continuous operation of the cooling fan generated by balancing the heat output of the engine and the coolant flowing from the radiator, the coolant temperature is increased by learning the initial cooling water fan off temperature. It is an object of the present invention to provide a cooling fan operation control method capable of suppressing the generation of noise and reducing fuel consumption by solving the continuous operation problem of the cooling fan by forcibly turning off the fan when maintaining the predetermined time or more.
도 1은 종래의 냉각팬 작동 제어방법을 설명하기 위한 블록도,1 is a block diagram illustrating a conventional cooling fan operation control method;
도 2는 종래의 제어방법에 따라 냉각팬의 작동과정을 나타낸 흐름도,2 is a flowchart illustrating an operation process of a cooling fan according to a conventional control method;
도 3은 본 발명의 냉각팬 작동 제어방법을 설명하기 위한 블록도,3 is a block diagram for explaining a cooling fan operation control method of the present invention;
도 4는 본 발명의 제어방법에 따라 냉각팬의 작동과정을 나타낸 흐름도.Figure 4 is a flow chart showing the operation of the cooling fan in accordance with the control method of the present invention.
[도면의 주요부분에 대한 부호의 설명][Explanation of symbols on the main parts of the drawings]
2:냉각수온 센서 4:제어유닛2: cooling water temperature sensor 4: control unit
6:냉각팬 10:차속센서6: cooling fan 10: vehicle speed sensor
12:아이들 스위치 14:타이머12: Idle switch 14: Timer
상술한 목적을 달성하기 위한 본 발명의 냉각팬 작동 제어방법은 냉각수온 센서로부터 전달되는 냉각수 온도를 바탕으로 제어유닛은 냉각팬에 제어신호를 보내 이를 온/오프 제어하는 냉각팬 작동 제어방법에 있어서, 제어유닛은 차속센서에서 전달되는 신호를 바탕으로 하여 현재의 차속이 기준값 이상인 경우에는 냉각수온 센서로부터의 냉각수온에 의거하여 냉각팬의 작동상태를 제어하는 한편, 차속이 기준값 이하인 경우에는 아이들 스위치로부터의 온/오프신호와 냉각수온 센서로부터의 냉각수온 및 타이머로부터의 경과시간에 의거하여 냉각팬의 작동상태를 제어하는 것을 특징으로 한다.In the cooling fan operation control method of the present invention for achieving the above object in the cooling fan operation control method for controlling the on / off control unit by sending a control signal to the cooling fan based on the coolant temperature transmitted from the coolant temperature sensor On the basis of the signal transmitted from the vehicle speed sensor, the control unit controls the operating state of the cooling fan based on the coolant temperature from the coolant temperature sensor when the current vehicle speed is above the reference value, and the idle switch when the vehicle speed is below the reference value. And an operating state of the cooling fan based on the on / off signal from the cooling water temperature, the cooling water temperature from the cooling water temperature sensor, and the elapsed time from the timer.
이하, 첨부한 도 3과 도 4를 참조하여 본 발명의 바람직한 실시예에 따른 냉각팬 작동 제어방법에 대하여 상세히 설명한다.Hereinafter, a cooling fan operation control method according to a preferred embodiment of the present invention with reference to the accompanying Figures 3 and 4 will be described in detail.
도 3은 본 발명의 냉각팬 작동 제어방법을 설명하기 위한 블록도이고, 도 4는 본 발명의 제어방법에 따라 냉각팬의 작동과정을 나타낸 흐름도이다.3 is a block diagram illustrating a cooling fan operation control method of the present invention, Figure 4 is a flow chart showing the operation of the cooling fan according to the control method of the present invention.
냉각수 온도가 소정시간 이상 계속 유지되는 경우에 냉각팬을 강제로 오프시키기 위한 방안으로 본 발명의 바람직한 실시예에서, 제어유닛(14)은 도 3에 나타낸 바와 같이 냉각수온 센서(2)에서 전달되는 냉각수온 신호뿐만 아니라, 차속센서(10)에서 전달되는 현재의 차속과 아이들 스위치(12)로부터의 온/오프상태 및 타이머(14)의 설정시간 경과여부를 바탕으로 하여 냉각팬(6)의 작동상태를 제어하게 된다.In a preferred embodiment of the present invention, the control unit 14 is transferred from the coolant temperature sensor 2 as shown in FIG. 3 as a method for forcibly turning off the cooling fan when the coolant temperature is continuously maintained for a predetermined time or more. The cooling fan 6 is operated based on not only the coolant temperature signal but also the current vehicle speed transmitted from the vehicle speed sensor 10, the on / off state from the idle switch 12, and whether the timer 14 has elapsed. It will control the state.
냉각수온도를 안정화시키는 엔진 회전수는 장시간 일정하게 유지되는 조건에서 발생되므로, 본 발명의 냉각팬 제어방법은 엔진의 아이들 및 차량 정차시에만 적용하여 주행중에 냉각팬(6)을 학습하여 팬을 오프시킴으로써 발생될 수 있는 불필요한 전기소모 및 팬에 의한 소음을 저감시키는데 주 목적이 있다.Since the engine speed for stabilizing the coolant temperature is generated under a condition that is kept constant for a long time, the cooling fan control method of the present invention is applied only when the engine is idle and the vehicle is stopped, learning the cooling fan 6 while driving and turning off the fan. The main purpose is to reduce the unnecessary power consumption and noise caused by the fan.
이를 위해서, 제어유닛(14)은 차속센서(10)에서 전달되는 신호를 바탕으로 하여 현재의 차속이 기준값 이상인 경우에는 냉각수온 센서(2)로부터의 냉각수온에 의거하여 냉각팬(6)의 작동상태를 제어하는 한편, 차속이 기준값 이하인 경우에는 아이들 스위치(12)로부터의 온/오프신호와 냉각수온 센서(2)로부터의 냉각수온 및 타이머(14)로부터의 경과시간에 의거하여 냉각팬(6)의 작동상태를 제어한다.To this end, the control unit 14 operates the cooling fan 6 based on the cooling water temperature from the cooling water temperature sensor 2 when the current vehicle speed is higher than the reference value based on the signal transmitted from the vehicle speed sensor 10. While controlling the state, if the vehicle speed is equal to or less than the reference value, the cooling fan 6 is based on the ON / OFF signal from the idle switch 12, the cooling water temperature from the cooling water temperature sensor 2, and the elapsed time from the timer 14. To control the operating status.
여기에서, 기준 차속은 5㎞/h정도로 설정하는 것이 바람직하며, 제어유닛(14)은 현재의 차속이 5㎞/h보다 크고 냉각수온 센서(2)로부터의 냉각수온이 95℃보다 큰 경우에는 냉각팬(6)을 온시키고, 냉각수온이 90℃미만인 경우에는 냉각수온도를 오프시킨다.Here, the reference vehicle speed is preferably set to about 5 km / h, the control unit 14 is the current vehicle speed is greater than 5 km / h and the cooling water temperature from the cooling water temperature sensor 2 is greater than 95 ℃ The cooling fan 6 is turned on and the cooling water temperature is turned off when the cooling water temperature is lower than 90 ° C.
또한, 제어유닛은 차속이 기준값인 5㎞/h보다 작고 아이들 스위치가 오프인 경우에는 냉각수온 센서(2)로부터의 냉각수온에 의거하여, 냉각수온이 95℃보다 큰 경우에는 냉각팬(6)을 온시키고, 냉각수온이 90℃미만인 경우에는 냉각수온도를 오프시키며, 차속이 기준값인 5㎞/h보다 크고 아이들 스위치가 온인 경우에는 냉각수온 센서(2)로부터의 냉각수온에 의거하여, 냉각수온이 97℃미만인 경우에 냉각팬(6)을 오프시키고, 그보다 큰 경우에는 냉각팬(6)을 온시킴과 동시에, 냉각수온이 소정의 범위에 있는 경우에는 타이머(14)로부터의 경과시간에 의거하여 냉각팬(6)을 온/오프시킨다.Further, the control unit is based on the cooling water temperature from the cooling water temperature sensor 2 when the vehicle speed is smaller than 5 km / h, which is a reference value, and the idle switch is off, and the cooling fan 6 when the cooling water temperature is larger than 95 ° C. The cooling water temperature is turned off when the cooling water temperature is lower than 90 DEG C, and the cooling water temperature is based on the cooling water temperature from the cooling water temperature sensor 2 when the vehicle speed is larger than the reference value 5 km / h and the idle switch is on. When the cooling fan 6 is lower than 97 deg. C, the cooling fan 6 is turned off. If the cooling fan 6 is larger, the cooling fan 6 is turned on. When the cooling water temperature is within a predetermined range, the cooling fan 6 is turned on based on the elapsed time from the timer 14. The cooling fan 6 is turned on / off.
여기에서, 냉각수온을 93℃보다 크고 95℃보다 작은 범위로 설정하는 것이 바람직하며, 제어유닛(14)은 냉각수온이 상기 설정범위 내에 있고 타이머(14)로부터의 경과시간이 2분 미만인 경우에는 냉각팬(6)의 온상태를 그대로 유지하며, 경과시간이 2분 이상인 경우에는 냉각팬(6)을 오프시킨다.Here, it is preferable to set the cooling water temperature to a range larger than 93 ° C. and smaller than 95 ° C., and the control unit 14 has a case where the cooling water temperature is within the setting range and the elapsed time from the timer 14 is less than 2 minutes. The cooling fan 6 is kept in an on state, and when the elapsed time is 2 minutes or more, the cooling fan 6 is turned off.
이러한 제어과정으로 다음의 도 4를 참고로 설명한다.This control process will be described with reference to FIG. 4.
먼저, 제어유닛(14)은 차속센서(10)로부터 입력된 신호를 바탕으로, 현재의 차속이 5㎞/h미만인지를 판단한다. 이때, 차속이 5㎞/h보다 큰 경우(단계S11에서 N)에는 냉각수온 센서(2)로부터 입력되는 냉각수온이 95℃보다 큰지를 판단한다. 이때, 냉각수온이 95℃보다 큰 경우(단계S21에서 Y)에는 냉각팬을 온시키고(단계S21), 냉각수온이 95미만인 경우(단계S에서 N)에는 냉각팬을 오프시킨다(단계S23).First, the control unit 14 determines whether the current vehicle speed is less than 5 km / h based on the signal input from the vehicle speed sensor 10. At this time, when the vehicle speed is larger than 5 km / h (N in step S11), it is determined whether the cooling water temperature input from the cooling water temperature sensor 2 is greater than 95 ° C. At this time, when the cooling water temperature is greater than 95 ° C (Y in step S21), the cooling fan is turned on (step S21), and when the cooling water temperature is less than 95 (N in step S), the cooling fan is turned off (step S23).
다음에, 단계S21 이후에, 냉각수온이 90℃보다 큰지의 여부를 판단하여, 냉각수온이 90℃보다 크면(단계S22에서 Y), 냉각팬(6)을 오프(단계S23)시키는 한편, 90℃미만인 경우(단계S22에서 N)에는 냉각팬(6)을 계속 온시킨다.Next, after step S21, it is judged whether or not the cooling water temperature is greater than 90 ° C. If the cooling water temperature is larger than 90 ° C (Y in step S22), the cooling fan 6 is turned off (step S23), while 90 If it is less than 占 폚 (N in step S22), the cooling fan 6 is kept on.
한편, 단계S11에서 현재의 차속이 5㎞/h미만인 경우에는 아이들 스위치의 온/오프 여부를 판단한다(단계S12). 이때, 아이들 스위치(12)가 오프인 경우(단계S12에서 N)에는 단계S20으로 진행되어 상술한 바와 같은 순서로 제어가 행해진다.On the other hand, if the current vehicle speed is less than 5 km / h in step S11, it is determined whether the idle switch is on or off (step S12). At this time, when the idle switch 12 is off (N in step S12), the flow advances to step S20 to control in the above-described order.
만일, 아이들 스위치(12)가 온인 경우(단계S12에서 Y)에는 다음 단계S13에서 냉각수온이 97℃보다 큰지의 여부를 판단한다. 이때, 냉각수온이 97℃보다 크면(단계S13에서 Y), 냉각팬(6)을 온시키고(단계S14), 그 미만이면 단계S17로 건너뛰어 냉각팬(6)을 온시킨다.If the idle switch 12 is on (Y in step S12), it is determined in the next step S13 whether the cooling water temperature is greater than 97 占 폚. At this time, if the cooling water temperature is greater than 97 ° C (Y in step S13), the cooling fan 6 is turned on (step S14), and if less, the cooling fan 6 is turned on by skipping to step S17.
단계S14 이후, 제어유닛(14)은 냉각수온이 소정의 범위(가령, 93℃보다 크고 95℃보다 작은)내에 들어있는지를 판단하여, 이 범위에 속하지 않는 경우에는 냉각팬(6)의 온상태를 지속적으로 유지하는 한편, 상기 범위에 속한 경우(단계S15에서 Y)에는 다시, 타이머(14)로부터 입력되는 경과시간이 소정의 시간(가령, 2분)을 경과하였는지를 판단한다. 타이머(14)로부터의 입력시간이 2분 미만인 경우(단계S16에서 Y)에는 냉각팬(6)을 오프시켜 엔진 아이들시의 계속적인 작동을 방지한다.After step S14, the control unit 14 determines whether the cooling water temperature is within a predetermined range (e.g., greater than 93 ° C and less than 95 ° C), and if it does not fall within this range, the cooling fan 6 is in an on state. In the meantime, if it is maintained in the above range (Y in step S15), it is again determined whether the elapsed time input from the timer 14 has passed a predetermined time (for example, 2 minutes). If the input time from the timer 14 is less than 2 minutes (Y in step S16), the cooling fan 6 is turned off to prevent continuous operation during engine idle.
이상으로 설명한 본 발명에 의하면, 차속센서에서 전달되는 현재의 차속, 아이들 스위치의 작동상태 및 냉각수온도를 바탕으로 엔진 아이들시에 불필요하게 냉각팬이 작동되는 현상을 막아 소음을 줄이고 밧데리의 소모에 의한 연료의 낭비를 줄일 수 있는 이점이 있다.According to the present invention described above, based on the current vehicle speed transmitted from the vehicle speed sensor, the operating state of the idle switch, and the coolant temperature, the cooling fan is prevented from operating unnecessarily when the engine is idle, which reduces noise and consumes the battery. There is an advantage to reduce the waste of fuel.
또한, 개발시 고려되는 엔진 변위차에 의한 냉각수 안정화 온도를 고정상수로 설정함으로써 발생할 수 있는 경우를 미리 제거함으로써 개발시 팬 오프의 냉각수 온도설정에 대한 자유도를 향상시킬 수 있다. 따라서, 냉각수 입구제어방식에서 발생할 수밖에 없는 냉각수 온도의 안정화에 따른 냉각팬 계속작동 문제를 근본적으로 개선할 수 있다.In addition, it is possible to improve the degree of freedom for setting the coolant temperature of the fan off during development by eliminating the case that may occur by setting the coolant stabilization temperature due to the engine displacement difference considered in the development to a fixed constant in advance. Therefore, it is possible to fundamentally improve the cooling fan continuation operation according to the stabilization of the cooling water temperature, which must occur in the cooling water inlet control method.
Claims (4)
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| KR10-2000-0076726A KR100435369B1 (en) | 2000-12-14 | 2000-12-14 | Method for controlling a cooling fan operating condition |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111746496A (en) * | 2020-06-29 | 2020-10-09 | 潍柴动力股份有限公司 | Control strategy and control device of fan and driving equipment |
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| KR20040046035A (en) * | 2002-11-26 | 2004-06-05 | 현대자동차주식회사 | A method of forcibly stopping radiator cooling fan in an idle state |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5133302A (en) * | 1990-09-18 | 1992-07-28 | Nissan Motor Co., Ltd. | Electric motor fan control system for vehicle |
| JPH09170434A (en) * | 1995-12-21 | 1997-06-30 | Fujitsu Ten Ltd | Fail-safe processing method for controlling electric fan |
| KR0185443B1 (en) * | 1994-11-25 | 1999-03-20 | 전성원 | Cooling function control apparatus and method of a vehicle |
| KR20020018758A (en) * | 2000-09-04 | 2002-03-09 | 이계안 | Method for controlling a radiator cooling-fan of vehicles |
-
2000
- 2000-12-14 KR KR10-2000-0076726A patent/KR100435369B1/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5133302A (en) * | 1990-09-18 | 1992-07-28 | Nissan Motor Co., Ltd. | Electric motor fan control system for vehicle |
| KR0185443B1 (en) * | 1994-11-25 | 1999-03-20 | 전성원 | Cooling function control apparatus and method of a vehicle |
| JPH09170434A (en) * | 1995-12-21 | 1997-06-30 | Fujitsu Ten Ltd | Fail-safe processing method for controlling electric fan |
| KR20020018758A (en) * | 2000-09-04 | 2002-03-09 | 이계안 | Method for controlling a radiator cooling-fan of vehicles |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111746496A (en) * | 2020-06-29 | 2020-10-09 | 潍柴动力股份有限公司 | Control strategy and control device of fan and driving equipment |
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