KR20040046035A - A method of forcibly stopping radiator cooling fan in an idle state - Google Patents

A method of forcibly stopping radiator cooling fan in an idle state Download PDF

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Publication number
KR20040046035A
KR20040046035A KR1020020073837A KR20020073837A KR20040046035A KR 20040046035 A KR20040046035 A KR 20040046035A KR 1020020073837 A KR1020020073837 A KR 1020020073837A KR 20020073837 A KR20020073837 A KR 20020073837A KR 20040046035 A KR20040046035 A KR 20040046035A
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South Korea
Prior art keywords
cooling fan
radiator cooling
radiator
temperature
engine
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KR1020020073837A
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Korean (ko)
Inventor
신승용
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현대자동차주식회사
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Priority to KR1020020073837A priority Critical patent/KR20040046035A/en
Publication of KR20040046035A publication Critical patent/KR20040046035A/en

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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
    • F01P7/026—Thermostatic control
    • 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
    • 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

Abstract

PURPOSE: A forced stop method of a radiator cooling fan, in idling is provided to prevent unnecessary continuous operation of the radiator cooling fan by forcibly stopping the radiator cooling fan if the radiator cooling fan continuously operates in a state of low coolant temperature when engine idles. CONSTITUTION: A forced stop method of a radiator cooling fan, in idling comprises steps of deciding whether an engine is in an idle state(S1); deciding whether the radiator cooling fan operates(S2); counting the operating time of the radiator cooling fan(S3); deciding whether the coolant temperature sensed by a temperature sensor is under the thermostat-complete opening temperature(S4); deciding whether the operating time of the radiator cooling fan is over predetermined time(S5); deciding whether the radiator cooling fan operates continuously over predetermined time while the coolant temperature is under the thermostat-complete opening temperature(S6); stopping the radiator cooling fan(S7); and operating or stopping the radiator cooling fan according to the vehicle speed and the coolant temperature(S8).

Description

아이들시의 라디에이터 냉각팬 강제 정지 방법 {A method of forcibly stopping radiator cooling fan in an idle state}A method of forcibly stopping radiator cooling fan in an idle state

본 발명은 라디에이터 냉각팬의 작동을 제어하는 방법에 관한 것으로, 좀더 상세하게는 엔진 냉각수를 냉각하는 라디에이터로 강제 통풍시켜서 정차시나 저속주행시에 충분한 냉각효과를 얻도록 하는 라디에이터 냉각팬의 작동을 제어하는 방법에 관한 것이다.The present invention relates to a method for controlling the operation of a radiator cooling fan, and more particularly, to control the operation of the radiator cooling fan to obtain a sufficient cooling effect during stop or low-speed driving by forced ventilation with a radiator to cool the engine coolant It is about a method.

차량에 구비된 냉각장치는 외기를 이용하여 엔진의 외부를 직접 냉각시키는 공랭식과 냉각수를 엔진 내부로 순환시켜서 냉각하는 수냉식이 있는데, 상기 수냉식이 냉각효율이 뛰어나므로 현재 많이 사용되고 있다.The cooling device provided in the vehicle includes an air-cooling type for directly cooling the outside of the engine using outside air and a water cooling type for circulating and cooling the cooling water inside the engine. The water-cooling type is widely used because of its excellent cooling efficiency.

상기 수냉식 냉각장치는 실린더와 연소실을 둘러싸는 워터 재킷, 물을 실린더내로 압송순환시키는 워터 펌프, 온도가 높은 냉각수의 열을 외기에 전달하여 냉갓시키는 라디이에터, 상기 라디에이터의 통풍을 돕는 라디에이터 냉각팬, 시동직수에 냉각수를 빨리 적정온도로 올리기 위한 서모스탯 등으로 구성되어 있다.The water-cooled cooling device includes a water jacket surrounding the cylinder and the combustion chamber, a water pump for circulating water into the cylinder, a radiator for transferring the heat of the high-temperature cooling water to the outside to cool the radiator, and a radiator cooling fan to assist the ventilation of the radiator. It is composed of a thermostat for quickly raising the coolant to the proper temperature at the starting water.

상기 써모스탯은 냉수온에 따라 자동적으로 작동하는 밸브로 실린더 헤드와 라디에이터의 수로 출구에 설치한다. 냉각수의 온도가 낮을때는 밸브가 닫히고 냉각수가 라디에이터로 들어가지 않도록 하며 워터 재킷내의 수온을 상승시킨다. 다음에 일정수온 이상으로 상승하면 밸브가 서서히 열리고 냉각수를 라디에이터를 통해 수온을 낮춤으로써, 엔진 시동후에 신속하게 냉각수를 적정온도까지 높이고, 또한 장시간의 내리막길 등에서는 과냉을 방지하는 것이다.The thermostat is a valve that operates automatically according to the cold water temperature is installed at the outlet of the cylinder head and the radiator channel. When the coolant temperature is low, the valve closes, preventing coolant from entering the radiator and raising the water temperature in the water jacket. Next, when the temperature rises above a certain temperature, the valve gradually opens and the cooling water is lowered through the radiator, thereby rapidly raising the cooling water to an appropriate temperature after starting the engine, and preventing overcooling on a long downhill, for example.

또한, 상기 라디에이터 냉각팬은 온도센서에 의해 감지된 냉각수온과 차속센서에 의해 감지된 차속을 바탕으로 작동되어, 라디에이터로 강제 통풍시켜서 정차시나 저속주행시에 충분한 냉각효과를 얻도록 한다.In addition, the radiator cooling fan is operated based on the cooling water temperature sensed by the temperature sensor and the vehicle speed sensed by the vehicle speed sensor, forcibly ventilated by the radiator to obtain a sufficient cooling effect during the stop or low-speed driving.

그러나, 상기와 같은 종래 기술에 따른 라디에이터 냉각팬 제어 방법에서는, 단순히 냉각수온과 차속을 바탕으로 라디에이터 냉각팬의 작동을 제어함에 따라, 엔진 아이들시에 써모스탯이 미미하게 열린 상태에서 엔진에서 냉각수로 전달되는 열량과 라디에이터 냉각팬이 작동되는 상태에서의 방열량이 열평형을 이루어, 냉각수가 고온이 아니면서도 라디에이터 냉각팬이 불필요하게 계속해서 작동하게 되는 문제점이 있었다.However, in the radiator cooling fan control method according to the prior art as described above, by simply controlling the operation of the radiator cooling fan based on the cooling water temperature and the vehicle speed, the engine from the engine to the coolant with the thermostat opened slightly during engine idle. The amount of heat delivered and the amount of heat dissipation in the state in which the radiator cooling fan is operated have a thermal equilibrium, so that the radiator cooling fan continues to operate unnecessarily even though the coolant is not high temperature.

이에, 본 발명은 상기한 바와 같은 종래의 제 문제점을 해소하기 위해 안출된 것으로, 엔진 아이들시에 냉각수온이 낮은 상태로 라디에이터 냉각팬이 계속해서 작동되면 라디에이터 냉각팬을 강제로 정지시킴으로써, 냉각팬이 불필요하게 계속해서 작동하는 것을 방지할 수 있는 아이들시의 라디에이터 냉각팬 강제 정지 방법을 제공하는데 그 목적이 있다.Accordingly, the present invention has been made to solve the above-mentioned problems of the prior art, the radiator cooling fan by forcibly stopping the radiator cooling fan when the radiator cooling fan continues to operate with a low cooling water temperature during engine idle, It is an object of the present invention to provide a method of forcibly stopping a radiator cooling fan during idle time, which can prevent the unnecessary and continuous operation.

상기한 바와 같은 목적을 달성하기 위한 본 발명에 따른 아이들시의 라디에이터 냉각팬 강제 정지 방법은, 엔진이 아이들 상태인가를 판단하는 단계와, 엔진이 아이들 상태가 아니면 차속과 냉각수온에 따라 라디에이터 냉각팬을 작동시키는 단계와, 엔진이 아이들 상태이면 냉각수온이 써모스탯 완전 개방 온도 이하인 상태로 라디에이터 냉각팬이 소정시간 이상 계속해서 작동되는지를 판단하는 단계와, 냉각수온이 써모스탯 완전 개방 온도 이하인 상태로 라디에이터 냉각팬이 소정시간 이상 계속해서 작동되면 라디에이터 냉각팬을 정지시키는 단계를 포함하여 구성된 것을 특징으로 한다.Radiator cooling fan forced stop method at idle according to the present invention for achieving the above object, the step of determining whether the engine is in the idle state, and if the engine is not in the idle state radiator cooling fan according to the vehicle speed and cooling water temperature Determining whether the radiator cooling fan continues to operate for a predetermined time or more in a state where the coolant temperature is below the thermostat full opening temperature if the engine is in an idle state, and when the coolant temperature is below the thermostat full opening temperature. And stopping the radiator cooling fan if the radiator cooling fan continues to operate for a predetermined time or more.

도 1은 본 발명에 따른 아이들시의 라디에이터 냉각팬 강제 정지 방법을 설명하기 위한 순서도이다.1 is a flow chart for explaining a radiator cooling fan forced stop method during idle according to the present invention.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 설명한다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

도 1은 본 발명에 따른 아이들시의 라디에이터 냉각팬 강제 정지 방법을 설명하기 위한 순서도이다.1 is a flow chart for explaining a radiator cooling fan forced stop method during idle according to the present invention.

상기 도 1에 도시된 바와 같이, 단계(S1)에서는 콘트롤러가 엔진이 아이들 상태인가를 판단하여 엔진이 아이들 상태이면 단계(S2)를 선택하고, 엔진이 아이들 상태가 아니면 단계(S8)를 수행한다.As shown in FIG. 1, in step S1, the controller determines whether the engine is in an idle state, selects step S2 when the engine is in an idle state, and performs step S8 when the engine is not in an idle state. .

상기 단계(S2)에서는 콘트롤러가 라디에이터 냉각팬이 작동중인가를 판단하여 라디에이터 냉각팬이 작동중이면 단계(S3)를 수행하고, 라디에이터 냉각팬이 작동되고 있지 않으면 단계(S8)를 수행한다.In step S2, the controller determines whether the radiator cooling fan is in operation, and performs step S3 when the radiator cooling fan is in operation, and performs step S8 when the radiator cooling fan is not in operation.

상기 단계(S3)에서는 콘트롤러가 라디에이터 냉각팬의 작동시간을 카운팅하고, 이어서, 단계(S4)에서는 콘트롤러가 온도센서에 의해 감지된 냉각수온이 써모스탯 완전 개방 온도 이하인가를 판단하여 냉각수온이 써모스탯 완전 개방 온도 이하이면 단계(S6)를 수행하고, 냉각수온이 써모스탯 완전 개방 온도 보다 크면 단계(S8)를 수행한다.In step S3, the controller counts the operating time of the radiator cooling fan, and then in step S4, the controller determines whether the coolant temperature detected by the temperature sensor is less than or equal to the thermostat full opening temperature, and thus the coolant temperature is When the stat full opening temperature is lower than step S6, and if the cooling water temperature is higher than the thermostat full opening temperature, step S8 is performed.

또한, 단계(S5)에서는 콘트롤러가 라디에이터 냉각팬의 작동시간이 소정시간(바람직하게는 2분) 이상인가를 판단하여 라디에이터 냉각팬의 작동시간이 소정시간 이상이면 단계(S6)를 수행하고, 라디에이터 냉각팬의 작동시간이 소정시간 보다 작으면 상기 단계(S1)을 수행한다.Further, in step S5, the controller determines whether the operating time of the radiator cooling fan is longer than a predetermined time (preferably 2 minutes), and if the operating time of the radiator cooling fan is greater than or equal to the predetermined time, perform step S6, and radiator If the operating time of the cooling fan is less than a predetermined time, the step (S1) is performed.

상기 단계(S6)에서는 콘트롤러가 냉각수온이 써모스탯 완전 개방 온도 이하인 상태로 라디에이터 냉각팬이 소정시간 이상 계속해서 작동되었는가를 판단하여 이러한 조건을 만족하면 단계(S7)를 수행하고 상기한 조건을 만족하지 많은 단계(S1)를 반복 수행한다.In the step S6, the controller judges whether the radiator cooling fan continues to operate for a predetermined time or more with the cooling water temperature below the thermostat full opening temperature, and if the condition is satisfied, the step S7 is performed and the condition is satisfied. Not many steps (S1) are repeated.

그리고, 상기 단계(S7)에서는 콘트롤러가 라디에이터 냉각팬을 정지시키고, 상기 단계(S8)에서는 콘트롤러가 차속과 냉각수온에 따라 라디에이터 냉각팬을 작동 또는 정지시킨다.Then, in step S7, the controller stops the radiator cooling fan, and in step S8, the controller operates or stops the radiator cooling fan according to the vehicle speed and the coolant temperature.

이상에서 설명한 바와 같이 본 발명에 따르면, 엔진 아이들시에 냉각수온이낮은 상태로 라디에이터 냉각팬이 계속해서 작동되면 라디에이터 냉각팬을 강제로 정지시킴으로써, 냉각팬이 불필요하게 계속해서 작동하는 것을 방지할 수 있는 효과가 있다.As described above, according to the present invention, if the radiator cooling fan continues to operate while the cooling water temperature is low during engine idle, the radiator cooling fan is forcibly stopped, thereby preventing the cooling fan from continuing to operate unnecessarily. It has an effect.

Claims (1)

엔진이 아이들 상태인가를 판단하는 단계와, 엔진이 아이들 상태가 아니면 차속과 냉각수온에 따라 라디에이터 냉각팬을 작동시키는 단계와, 엔진이 아이들 상태이면 냉각수온이 써모스탯 완전 개방 온도 이하인 상태로 라디에이터 냉각팬이 소정시간 이상 계속해서 작동되는지를 판단하는 단계와, 냉각수온이 써모스탯 완전 개방 온도 이하인 상태로 라디에이터 냉각팬이 소정시간 이상 계속해서 작동되면 라디에이터 냉각팬을 정지시키는 단계를 포함하여 구성된 것을 특징으로 하는 아이들시의 라디에이터 냉각팬 강제 정지 방법.Determining whether the engine is in an idle state; operating the radiator cooling fan according to the vehicle speed and cooling water temperature if the engine is not idle; and cooling the radiator with the cooling water temperature below the thermostat full opening temperature if the engine is idle. Determining whether the fan continues to operate for a predetermined time, and stopping the radiator cooling fan if the radiator cooling fan continues to operate for a predetermined time while the cooling water temperature is below the thermostat full opening temperature. Radiator cooling fan forced stop method at idle.
KR1020020073837A 2002-11-26 2002-11-26 A method of forcibly stopping radiator cooling fan in an idle state KR20040046035A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130023448A (en) * 2011-08-29 2013-03-08 한라공조주식회사 Controlling method for the cooling fan of car

Citations (4)

* Cited by examiner, † Cited by third party
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
KR20020018758A (en) * 2000-09-04 2002-03-09 이계안 Method for controlling a radiator cooling-fan of vehicles
KR20020046500A (en) * 2000-12-14 2002-06-21 이계안 Method for controlling a cooling fan operating condition

Patent Citations (4)

* Cited by examiner, † Cited by third party
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
KR20020018758A (en) * 2000-09-04 2002-03-09 이계안 Method for controlling a radiator cooling-fan of vehicles
KR20020046500A (en) * 2000-12-14 2002-06-21 이계안 Method for controlling a cooling fan operating condition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130023448A (en) * 2011-08-29 2013-03-08 한라공조주식회사 Controlling method for the cooling fan of car

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