KR20130053993A - Cooling fan driving control method for vehicle - Google Patents

Cooling fan driving control method for vehicle Download PDF

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Publication number
KR20130053993A
KR20130053993A KR1020110119752A KR20110119752A KR20130053993A KR 20130053993 A KR20130053993 A KR 20130053993A KR 1020110119752 A KR1020110119752 A KR 1020110119752A KR 20110119752 A KR20110119752 A KR 20110119752A KR 20130053993 A KR20130053993 A KR 20130053993A
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South Korea
Prior art keywords
temperature
cooling water
difference
radiator
vehicle
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KR1020110119752A
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Korean (ko)
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KR101305877B1 (en
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정일
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현대자동차주식회사
기아자동차주식회사
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Priority to KR1020110119752A priority Critical patent/KR101305877B1/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
    • F01P7/08—Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps
    • F01P7/081—Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps using clutches, e.g. electro-magnetic or induction clutches
    • 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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • 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
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F01P7/167—Controlling of coolant flow the coolant being liquid by thermostatic control by adjusting the pre-set temperature according to engine parameters, e.g. engine load, engine speed
    • 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
    • F01P2025/08—Temperature
    • F01P2025/50—Temperature using two or more temperature sensors
    • 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
    • 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
    • F01P2050/00—Applications
    • F01P2050/22—Motor-cars

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

PURPOSE: A cooling fan operation-control method of a vehicle is provided to secure stable cooling performance of the temperature of engine cooling water, and to minimize unnecessary operation of a cooling fan, thereby improving fuel efficiency of a vehicle. CONSTITUTION: The temperature of cooling water of an inlet part and outlet part of a radiator is measured(S10). The temperature difference between the cooling water of the inlet part and outlet part of the radiator is calculated, and then whether the calculated temperature difference is more than a standard temperature difference or not is judged(S20). The new target temperature is determined by a fixed value of an increased temperature amount which is added to the target temperature in case the difference of temperature between the cooling water of the inlet part and outlet part of the radiator is judged as more than a standard temperature difference(S30). A fan clutch of a cooling fan is controlled to correspond to the newly determined target temperature(S40). [Reference numerals] (AA) Obtain a temperature increase according to the difference between the inlet temperature and outlet temperature of the radiator; (BB) Target cooling water temperature = Target cooling water temperature + temperature increase; (S10) Input the inlet temperature and outlet temperature of a radiator; (S20) Difference between the inlet temperature and outlet temperature of the radiator >= Reference temperature difference ?; (S21) Current vehicle speed >= Reference vehicle speed ?; (S22) Engine rpm <= Reference engine rpm ?; (S40) Perform PID control of a fan clutch according to the target cooling water temperature

Description

차량의 냉각팬 작동 제어방법{COOLING FAN DRIVING CONTROL METHOD FOR VEHICLE}COOLING FAN DRIVING CONTROL METHOD FOR VEHICLE}

본 발명은 차량의 냉각팬 작동 제어방법에 관한 것으로서, 보다 상세하게는 차량 라디에이터 전방의 주행풍에 따른 영향을 고려하여 냉각팬을 제어할 수 있도록 하는 기술에 관한 것이다.The present invention relates to a method for controlling a cooling fan operation of a vehicle, and more particularly, to a technology for controlling the cooling fan in consideration of the influence of the running wind in front of the vehicle radiator.

차량에는 엔진 냉각수를 냉각시키기 위하여 라디에이터가 구비되고, 상기 라디에이터에 강제적으로 냉각풍을 공급하기 위한 냉각팬이 구비되며, 상기 냉각팬은 팬클러치에 의해 그 작동이 제어될 수 있도록 구성된다.
The vehicle includes a radiator for cooling the engine coolant, a cooling fan for forcibly supplying cooling air to the radiator, and the cooling fan is configured such that its operation can be controlled by a fan clutch.

종래의 전자식 팬클러치는 라디에이터 전방의 주행풍에 대한 정보를 감지하여 적용하는 것이 불가능하고, 팬클러치의 작동온도가 고정되어 있다. 즉, 엔진 냉각수 냉각 목표 온도가 고정되어 있는 것이다.
Conventional electronic fan clutch is impossible to detect and apply information about the running wind in front of the radiator, the operating temperature of the fan clutch is fixed. That is, the engine cooling water cooling target temperature is fixed.

한편, 상기 팬클러치의 작동온도는 높게 설정할 수 없는데, 그 이유는 상기 팬클러치 작동온도를 과도하게 높게 선정할 경우, 하절기 라디에이터 전면 주행풍이 약한 등판 조건 등과 같은 특수한 운전조건에서 엔진 냉각수 온도의 지나친 상승에 의한 엔진의 출력저하가 발생될 수 있는 염려가 있기 때문이다.
On the other hand, the operating temperature of the fan clutch can not be set high, because if the fan clutch operating temperature is selected excessively high, excessive rise of the engine coolant temperature in the special operating conditions, such as climbing conditions such as weak running wind in front of the radiator in summer This is because there is a fear that the output decrease of the engine may occur.

따라서, 종래에는 차량의 라디에이터 전방 주행풍의 영향을 고려하지 않고, 상기한 바와 같은 특수한 운전조건을 고려한 상대적으로 낮은 일정한 팬클러치 작동온도에 의해 팬클러치를 제어함에 따라, 불필요한 팬클러치의 작동에 따른 동력 손실로 인하여 차량의 연비를 저하시키는 요인을 제공하게 되는 문제점이 있다.
Therefore, in the related art, the fan clutch is controlled by a relatively low constant fan clutch operating temperature in consideration of the special driving conditions as described above, without considering the influence of the front wind of the radiator of the vehicle. There is a problem that provides a factor that reduces the fuel economy of the vehicle due to the loss.

상기의 발명의 배경이 되는 기술로서 설명된 사항들은 본 발명의 배경에 대한 이해 증진을 위한 것일 뿐, 이 기술분야에서 통상의 지식을 가진 자에게 이미 알려진 종래기술에 해당함을 인정하는 것으로 받아들여져서는 안 될 것이다.The matters described as the background of the above-described invention are merely for the purpose of enhancing the understanding of the background of the present invention and are accepted as acknowledging that they correspond to the prior art already known to those skilled in the art. I will not.

KRKR 10-2005-008921010-2005-0089210 AA

본 발명은 상기한 바와 같은 문제점을 해결하기 위하여 안출된 것으로서, 차량의 라디에이터 전방의 주행풍 상황을 고려하여 팬클러치를 제어할 수 있도록 함으로써, 엔진 냉각수 온도의 안정된 냉각성능을 확보하면서도, 불필요한 냉각팬의 구동을 최대한 억제하여 동력 손실을 최소화 함으로써, 차량의 연비를 향상시킬 수 있도록 한 차량의 냉각팬 작동 제어방법을 제공함에 그 목적이 있다.The present invention has been made to solve the problems described above, by allowing the fan clutch to be controlled in consideration of the driving wind situation in front of the radiator of the vehicle, while ensuring a stable cooling performance of the engine coolant temperature, unnecessary cooling fan The purpose of the present invention is to provide a control method of operating a cooling fan of a vehicle to minimize the power loss by suppressing the driving of the vehicle as much as possible.

상기한 바와 같은 목적을 달성하기 위한 본 발명 차량의 냉각팬 작동 제어방법은 Cooling fan operation control method of the present invention for achieving the object as described above

라디에이터 입구부의 냉각수 온도와 상기 라디에이터 출구부의 냉각수 온도를 측정하는 온도측정단계와;A temperature measuring step of measuring a cooling water temperature of a radiator inlet and a cooling water temperature of the radiator outlet;

상기 입구부의 냉각수 온도와 출구부의 냉각수 온도의 차이를 구하여 소정의 기준온도차 이상인지를 판단하는 온도차판단단계와;A temperature difference judging step of determining whether a difference between the cooling water temperature of the inlet portion and the cooling water temperature of the outlet portion is greater than a predetermined reference temperature difference;

상기 입구부의 냉각수 온도와 출구부의 냉각수 온도의 차이가 상기 기준온도차 이상인 경우, 상기 냉각수 온도의 차이에 따라 미리 정해져 있는 소정의 온도증가치만큼을 엔진 냉각수의 목표온도에 더하여, 새로운 냉각수 목표온도로 설정하는 목표온도재설정단계와;When the difference between the cooling water temperature of the inlet portion and the cooling water temperature of the outlet portion is equal to or more than the reference temperature difference, a new temperature of the cooling water is set by adding a predetermined temperature increase value predetermined according to the difference of the cooling water temperature to the target temperature of the engine cooling water. A target temperature resetting step;

상기 새로 설정된 냉각수 목표온도 추종하도록 냉각팬의 팬클러치를 제어하는 팬클러치제어단계;A fan clutch control step of controlling a fan clutch of a cooling fan to follow the newly set cooling water target temperature;

를 포함하여 구성된 것을 특징으로 한다.
And a control unit.

또한 본 발명에 따른 차량의 냉각팬 작동 제어장치는In addition, the cooling fan operation control apparatus of the vehicle according to the present invention

라디에이터의 입구부에 설치되어 라디에이터로 유입되는 냉각수의 온도를 측정하는 입구부온도센서와;An inlet temperature sensor installed at an inlet of the radiator and measuring a temperature of the coolant flowing into the radiator;

상기 라디에이터의 출구부에 설치되어 라디에이터로부터 유출되는 냉각수의 온도를 측정하는 출구부온도센서와;An outlet temperature sensor installed at an outlet of the radiator to measure a temperature of cooling water flowing out of the radiator;

라디에이터 입구부의 냉각수 온도와 라디에이터 출구부의 냉각수 온도의 차이에 따른 온도증가치맵을 저장한 기억장치와;A memory device for storing a temperature increase value map according to a difference between the coolant temperature of the radiator inlet and the coolant temperature of the radiator outlet;

상기 입구부온도센서와 출구부온도센서의 신호를 받아 상기 냉각수 온도들의 온도차를 연산하고, 소정의 적용조건이 만족하는지를 판단하여, 상기 기억장치의 온도증가치맵으로부터 상기 온도차에 해당하는 온도증가치를 구하고, 이전의 냉각수 목표온도에 상기 온도증가치를 더하여 새로운 냉각수 목표온도를 설정하여, 냉각팬의 팬클러치를 제어하는 컨트롤러;The temperature difference between the cooling water temperatures is calculated by receiving the signals of the inlet temperature sensor and the outlet temperature sensor, and it is determined whether a predetermined application condition is satisfied, and the temperature increase value corresponding to the temperature difference is obtained from the temperature increase value map of the storage device. A controller for controlling the fan clutch of the cooling fan by setting the new cooling water target temperature by adding the temperature increase value to the previous cooling water target temperature;

를 포함하여 구성된 것을 특징으로 한다.And a control unit.

본 발명은 차량의 라디에이터 전방의 주행풍 상황을 고려하여 팬클러치를 제어할 수 있도록 함으로써, 엔진 냉각수 온도의 안정된 냉각성능을 확보하면서도, 불필요한 냉각팬의 구동을 최대한 억제하여 동력 손실을 최소화 함으로써, 차량의 연비를 향상시킬 수 있도록 한다.The present invention allows the fan clutch to be controlled in consideration of the driving wind situation in front of the radiator of the vehicle, thereby ensuring stable cooling performance of the engine coolant temperature, while minimizing power loss by minimizing unnecessary driving of the cooling fan. To improve fuel efficiency.

도 1은 본 발명에 따른 차량의 냉각팬 작동 제어방법의 실시예를 도시한 순서도,
도 2는 본 발명에 따른 차량의 냉각팬 작동 제어방법을 설명한 다이어그램,
도 3은 본 발명의 차량의 냉각팬 작동 제어방법에 사용되는 온도차에 대한 온도증가치의 맵을 예시한 도면,
도 4는 본 발명에 따른 차량의 냉각팬 작동 제어장치의 일 예를 예시한 도면이다.1 is a flowchart illustrating an embodiment of a method for controlling a cooling fan operation of a vehicle according to the present invention;
2 is a diagram for explaining a cooling fan operation control method of a vehicle according to the present invention;
3 is a diagram illustrating a map of a temperature increase value for a temperature difference used in a cooling fan operation control method of a vehicle of the present invention;
4 is a view illustrating an example of a cooling fan operation control apparatus of a vehicle according to the present invention.

도 1 내지 도 3을 참조하면, 본 발명 실시예의 차량의 냉각팬 작동 제어방법은 라디에이터 입구부의 냉각수 온도와 상기 라디에이터 출구부의 냉각수 온도를 측정하는 온도측정단계(S10)와; 상기 입구부의 냉각수 온도와 출구부의 냉각수 온도의 차이를 구하여 소정의 기준온도차 이상인지를 판단하는 온도차판단단계(S20)와; 상기 입구부의 냉각수 온도와 출구부의 냉각수 온도의 차이가 상기 기준온도차 이상인 경우, 상기 냉각수 온도의 차이에 따라 미리 정해져 있는 소정의 온도증가치만큼을 엔진 냉각수의 목표온도에 더하여, 새로운 냉각수 목표온도로 설정하는 목표온도재설정단계(S30)와; 상기 새로 설정된 냉각수 목표온도를 추종하도록 냉각팬의 팬클러치를 제어하는 팬클러치제어단계(S40)를 포함하여 구성된다.
1 to 3, a cooling fan operation control method of a vehicle according to an embodiment of the present invention includes a temperature measuring step (S10) of measuring a cooling water temperature of a radiator inlet and a cooling water temperature of the radiator outlet; A temperature difference judging step (S20) of determining a difference between the cooling water temperature of the inlet part and the cooling water temperature of the outlet part to determine whether the temperature difference is greater than or equal to a predetermined reference temperature difference; When the difference between the cooling water temperature of the inlet portion and the cooling water temperature of the outlet portion is equal to or more than the reference temperature difference, a new temperature of the cooling water is set by adding a predetermined temperature increase value predetermined according to the difference of the cooling water temperature to the target temperature of the engine cooling water. A target temperature reset step (S30); It comprises a fan clutch control step (S40) for controlling the fan clutch of the cooling fan to follow the newly set cooling water target temperature.

즉, 라디에이터 입구부의 냉각수 온도와 라디에이터 출구부의 냉각수 온도의 차이는 얼마나 라디에이터에서 냉각이 잘 이루어지는지를 대표하는 물리량이라 할 수 있으므로, 상기 냉각수 온도의 차이는 냉각팬의 작동 이외에 차량의 주행에 따른 라디에이터 전방의 주행풍의 상황이 함께 반영된 결과로 볼 수 있을 것이므로, 이 냉각수 온도차이에 따라 상기 온도증가치만큼 냉각수 목표온도를 재설정하여 그에 따라 냉각팬의 팬클러치를 제어하도록 함으로써, 냉각풍에 의한 냉각이 원활하게 이루어지고 있는 경우에는 팬클러치의 작동이 감소하도록 함으로써, 불필요한 동력소모를 줄여 차량의 연비를 향상시키도록 하는 것이다.
That is, the difference between the coolant temperature at the radiator inlet and the coolant temperature at the radiator outlet may be a physical quantity representing how well the radiator is cooled, so the difference in the coolant temperature is in front of the radiator according to the running of the vehicle in addition to the operation of the cooling fan. Since the situation of the driving wind may be reflected as a result, the cooling water target temperature is reset according to the temperature increase value according to the cooling water temperature difference, and the fan clutch of the cooling fan is controlled accordingly, so that cooling by the cooling wind is smoothly performed. In this case, the operation of the fan clutch is reduced, thereby reducing unnecessary power consumption to improve the fuel efficiency of the vehicle.

상기 목표온도재설정단계(S30)는 상기 온도차판단단계(S20) 수행결과, 상기 입구부의 냉각수 온도와 출구부의 냉각수 온도의 차이가 상기 기준온도차 이상인 경우에, 현재의 차속이 소정의 기준차속 이상인 경우에만 수행하도록 구성할 수 있다.
The target temperature reset step S30 is performed only when the current vehicle speed is greater than or equal to a predetermined reference vehicle speed when a difference between the cooling water temperature of the inlet part and the cooling water temperature of the outlet part is greater than or equal to the reference temperature difference as a result of performing the temperature difference determination step S20. Can be configured to do so.

또한, 상기 목표온도재설정단계(S30)는 상기 온도차판단단계(S20) 수행결과, 상기 입구부의 냉각수 온도와 출구부의 냉각수 온도의 차이가 상기 기준온도차 이상이고, 현재의 차속이 소정의 기준차속 이상인 경우(S21), 엔진회전수가 소정의 기준엔진회전수 이하인 경우(S22)에만 수행하도록 구성할 수도 있을 것인바, 본 실시예에서는 상기 차속과 엔진회전수를 모두 고려하고 있다.
In addition, the target temperature reset step (S30) is a result of performing the temperature difference determination step (S20), when the difference between the cooling water temperature of the inlet and the cooling water temperature of the outlet is more than the reference temperature difference, the current vehicle speed is more than a predetermined reference vehicle speed (S21), it may be configured to perform only when the engine speed is less than the predetermined reference engine speed (S22), this embodiment considers both the vehicle speed and the engine speed.

여기서, 상기 기준온도차는 라디에이터 입구부의 냉각수 온도와 출구부의 냉각수 온도의 차이가 본 발명을 적용하여 새로운 냉각수 목표온도를 설정할 만큼 큰 경우를 구별하기 위한 것으로서, 다수의 실험과 해석에 의해 정해질 수 있을 것이며, 예컨대 5℃ 등으로 설정될 수 있을 것이다.
Here, the reference temperature difference is to distinguish the case where the difference between the coolant temperature of the radiator inlet and the coolant temperature of the outlet is large enough to set a new coolant target temperature by applying the present invention, and may be determined by a number of experiments and interpretations. And may be set, for example, at 5 ° C.

또한, 상기 기준차속은 라디에이터 전방의 주행풍이 라디에이터의 냉각에 도움을 줄 수 있는 차속인지의 여부를 가리기 위한 것으로서, 예컨대 80㎞/h 등으로 설정될 수 있다.
In addition, the reference vehicle speed is to determine whether the traveling wind in front of the radiator is a vehicle speed that can help cooling the radiator, and may be set to, for example, 80 km / h.

상기 기준엔진회전수는 엔진의 과열이 우려되는 엔진의 높은 회전수 운전상태인 경우에는 본 발명을 적용하지 않기 위한 것으로서, 예컨대 4000rpm 등으로 설정될 수 있을 것이다.
The reference engine speed is not to apply the present invention when the engine is running at a high speed, which is concerned about overheating of the engine, and may be set to, for example, 4000 rpm.

한편, 도 3은 상기 목표온도재설정단계(S30)에서 냉각수 온도의 차이에 따른 온도증가치를 구하기 위한 맵을 예시한 것으로서, 온도차가 클수록 온도증가치도 크게 설정되도록 하고 있다.
Meanwhile, FIG. 3 illustrates a map for obtaining a temperature increase value according to a difference in cooling water temperature in the target temperature resetting step (S30), and the temperature increase value is set to be larger as the temperature difference increases.

또한, 상기 팬클러치제어단계(S40)에서는 새로 설정된 목표온도에 따라 팬클러치를 예컨대, PID제어 방법 등에 의해 제어함으로써, 냉각수의 온도가 상기 목표온도를 추종하도록 제어한다.
Further, in the fan clutch control step S40, the fan clutch is controlled by, for example, a PID control method according to the newly set target temperature, so that the temperature of the cooling water follows the target temperature.

상기 온도측정단계(S10)로부터 상기 온도차판단단계(S20)와 목표온도재설정단계(S30) 및 상기 팬클러치제어단계(S40)는 지속적으로 반복하여 수행하면서, 실시간으로 변화하는 냉각수 온도를 반영하도록 한다.
The temperature difference determination step (S20), the target temperature reset step (S30), and the fan clutch control step (S40) are continuously and repeatedly performed to reflect the coolant temperature changing in real time from the temperature measurement step (S10). .

한편, 도 4는 상기한 바와 같은 본 발명을 구현하기 위한 차량의 냉각팬 작동 제어장치의 구성을 예시한 것으로서, 라디에이터의 입구부에 설치되어 라디에이터로 유입되는 냉각수의 온도를 측정하는 입구부온도센서(1)와; 상기 라디에이터의 출구부에 설치되어 라디에이터로부터 유출되는 냉각수의 온도를 측정하는 출구부온도센서(3)와; 라디에이터 입구부의 냉각수 온도와 라디에이터 출구부의 냉각수 온도의 차이에 따른 온도증가치맵을 저장한 기억장치(5)와; 상기 입구부온도센서(1)와 출구부온도센서(3)의 신호를 받아 상기 냉각수 온도들의 온도차를 연산하고, 소정의 적용조건이 만족하는지를 판단하여, 상기 기억장치(5)의 온도증가치맵으로부터 상기 온도차에 해당하는 온도증가치를 구하고, 이전의 냉각수 목표온도에 상기 온도증가치를 적용하여 새로운 냉각수 목표온도를 설정하여, 냉각팬의 팬클러치(7)를 제어하는 컨트롤러(9)를 포함하고 있다.
On the other hand, Figure 4 illustrates the configuration of a cooling fan operation control apparatus of a vehicle for implementing the present invention as described above, the inlet temperature sensor is installed in the inlet of the radiator to measure the temperature of the coolant flowing into the radiator (1); An outlet temperature sensor (3) installed at an outlet of the radiator to measure a temperature of cooling water flowing out of the radiator; A storage device 5 storing a temperature increase value map according to a difference between the coolant temperature of the radiator inlet and the coolant temperature of the radiator outlet; The temperature difference between the coolant temperatures is calculated by receiving signals from the inlet temperature sensor 1 and the outlet temperature sensor 3, and it is determined whether a predetermined application condition is satisfied, and from the temperature increase value map of the storage device 5, And a controller 9 for controlling the fan clutch 7 of the cooling fan by obtaining a temperature increase value corresponding to the temperature difference, setting a new coolant target temperature by applying the temperature increase value to a previous coolant target temperature.

또한, 차량의 속도를 검출하는 차속센서(11)와 엔진회전수센서(13)를 더 포함하여 구성될 수 있다. 물론, 상기 차속센서(11)와 엔진회전수센서(13)는 별도의 센서를 구비하지 않고, 엔진ECU 등으로부터 해당 정보를 공급받도록 구성할 수도 있을 것이다.
In addition, the vehicle speed sensor 11 and the engine speed sensor 13 for detecting the speed of the vehicle may be further included. Of course, the vehicle speed sensor 11 and the engine speed sensor 13 may not be provided with a separate sensor, but may be configured to receive the corresponding information from the engine ECU.

본 발명은 특정한 실시예에 관련하여 도시하고 설명하였지만, 이하의 특허청구범위에 의해 제공되는 본 발명의 기술적 사상을 벗어나지 않는 한도 내에서, 본 발명이 다양하게 개량 및 변화될 수 있다는 것은 당업계에서 통상의 지식을 가진 자에게 있어서 자명할 것이다.While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

1; 입구부온도센서
3; 출구부온도센서
5; 기억장치
7; 팬클러치
9; 컨트롤러
11; 차속센서
13; 엔진회전수센서
S10; 온도측정단계
S20; 온도차판단단계
S30; 목표온도재설정단계
S40; 팬클러치제어단계One; Inlet temperature sensor
3; Outlet temperature sensor
5; Memory
7; Fan clutch
9; controller
11; Vehicle speed sensor
13; Engine speed sensor
S10; Temperature measurement step
S20; Temperature difference determination step
S30; Target temperature reset step
S40; Fan Clutch Control Step

Claims (7)

라디에이터 입구부의 냉각수 온도와 상기 라디에이터 출구부의 냉각수 온도를 측정하는 온도측정단계(S10)와;
상기 입구부의 냉각수 온도와 출구부의 냉각수 온도의 차이를 구하여 소정의 기준온도차 이상인지를 판단하는 온도차판단단계(S20)와;
상기 입구부의 냉각수 온도와 출구부의 냉각수 온도의 차이가 상기 기준온도차 이상인 경우, 상기 냉각수 온도의 차이에 따라 미리 정해져 있는 소정의 온도증가치만큼을 엔진 냉각수의 목표온도에 더하여, 새로운 냉각수 목표온도로 설정하는 목표온도재설정단계(S30)와;
상기 새로 설정된 냉각수 목표온도를 추종하도록 냉각팬의 팬클러치를 제어하는 팬클러치제어단계(S40);
를 포함하여 구성된 것을 특징으로 하는 차량의 냉각팬 작동 제어방법.A temperature measuring step (S10) of measuring a cooling water temperature of a radiator inlet and a cooling water temperature of the radiator outlet;
A temperature difference judging step (S20) of determining a difference between the cooling water temperature of the inlet part and the cooling water temperature of the outlet part to determine whether the temperature difference is greater than or equal to a predetermined reference temperature difference;
When the difference between the cooling water temperature of the inlet portion and the cooling water temperature of the outlet portion is equal to or more than the reference temperature difference, a new temperature of the cooling water is set by adding a predetermined temperature increase value predetermined according to the difference of the cooling water temperature to the target temperature of the engine cooling water. A target temperature reset step (S30);
A fan clutch control step (S40) of controlling a fan clutch of a cooling fan to follow the newly set cooling water target temperature;
Cooling fan operation control method of a vehicle comprising a. 청구항 1에 있어서,
상기 목표온도재설정단계(S30)는 상기 온도차판단단계(S20) 수행결과, 상기 입구부의 냉각수 온도와 출구부의 냉각수 온도의 차이가 상기 기준온도차 이상인 경우에, 현재의 차속이 소정의 기준차속 이상인 경우에만 수행하도록 구성된 것
을 특징으로 하는 차량의 냉각팬 작동 제어방법.The method according to claim 1,
The target temperature reset step S30 is performed only when the current vehicle speed is greater than or equal to a predetermined reference vehicle speed when a difference between the cooling water temperature of the inlet part and the cooling water temperature of the outlet part is greater than or equal to the reference temperature difference as a result of performing the temperature difference determination step S20. Configured to perform
Cooling fan operation control method of the vehicle, characterized in that. 청구항 2에 있어서,
상기 목표온도재설정단계(S30)는 상기 온도차판단단계(S20) 수행결과, 상기 입구부의 냉각수 온도와 출구부의 냉각수 온도의 차이가 상기 기준온도차 이상이고, 현재의 차속이 소정의 기준차속 이상인 경우, 엔진회전수가 소정의 기준엔진회전수 이하인 경우에만 수행하도록 구성된 것
을 특징으로 하는 차량의 냉각팬 작동 제어방법.The method according to claim 2,
The target temperature reset step (S30) is a result of performing the temperature difference determination step (S20), when the difference between the cooling water temperature of the inlet portion and the cooling water temperature of the outlet portion is more than the reference temperature difference, the current vehicle speed is more than a predetermined reference vehicle speed, the engine Configured to perform only if the revolutions are less than or equal to the predetermined reference engine revolutions
Cooling fan operation control method of the vehicle, characterized in that. 청구항 1에 있어서,
상기 온도측정단계(S10)로부터 상기 온도차판단단계(S20)와 목표온도재설정단계(S30) 및 상기 팬클러치제어단계(S40)는 지속적으로 반복하여 수행하는 것
을 특징으로 하는 차량의 냉각팬 작동 제어방법.The method according to claim 1,
The temperature difference determination step (S20), the target temperature reset step (S30) and the fan clutch control step (S40) from the temperature measuring step (S10) to be repeatedly performed continuously
Cooling fan operation control method of the vehicle, characterized in that. 라디에이터의 입구부에 설치되어 라디에이터로 유입되는 냉각수의 온도를 측정하는 입구부온도센서(1)와;
상기 라디에이터의 출구부에 설치되어 라디에이터로부터 유출되는 냉각수의 온도를 측정하는 출구부온도센서(3)와;
라디에이터 입구부의 냉각수 온도와 라디에이터 출구부의 냉각수 온도의 차이에 따른 온도증가치맵을 저장한 기억장치(5)와;
상기 입구부온도센서(1)와 출구부온도센서(3)의 신호를 받아 상기 냉각수 온도들의 온도차를 연산하고, 소정의 적용조건이 만족하는지를 판단하여, 상기 기억장치(5)의 온도증가치맵으로부터 상기 온도차에 해당하는 온도증가치를 구하고, 이전의 냉각수 목표온도에 상기 온도증가치를 더하여 새로운 냉각수 목표온도를 설정하여, 냉각팬의 팬클러치(7)를 제어하는 컨트롤러(9);
를 포함하여 구성된 것을 특징으로 하는 차량의 냉각팬 작동 제어장치.An inlet temperature sensor (1) installed at the inlet of the radiator and measuring the temperature of the cooling water flowing into the radiator;
An outlet temperature sensor (3) installed at an outlet of the radiator to measure a temperature of cooling water flowing out of the radiator;
A storage device 5 storing a temperature increase value map according to a difference between the coolant temperature of the radiator inlet and the coolant temperature of the radiator outlet;
The temperature difference between the coolant temperatures is calculated by receiving signals from the inlet temperature sensor 1 and the outlet temperature sensor 3, and it is determined whether a predetermined application condition is satisfied, and from the temperature increase value map of the storage device 5, A controller (9) for obtaining a temperature increase value corresponding to the temperature difference, and setting a new coolant target temperature by adding the temperature increase value to a previous coolant target temperature to control a fan clutch (7) of the cooling fan;
Cooling fan operation control apparatus of a vehicle comprising a. 청구항 5에 있어서,
차량의 속도를 검출하는 차속센서(11)를 더 포함하여 구성되고;
상기 컨트롤러(9)가 판단하는 소정의 적용조건은 상기 차속센서(11)로부터 입력된 차속이 소정의 기준차속 이상인지의 여부를 포함하며, 상기 차속이 상기 기준차속 이상인 경우에 상기 온도증가치를 구하고 상기 냉각수 목표온도를 새로 설정하는 것
을 특징으로 하는 차량의 냉각팬 작동 제어장치.The method according to claim 5,
It further comprises a vehicle speed sensor 11 for detecting the speed of the vehicle;
The predetermined application condition determined by the controller 9 includes whether the vehicle speed input from the vehicle speed sensor 11 is equal to or greater than a predetermined reference vehicle speed, and the temperature increase value is obtained when the vehicle speed is equal to or greater than the reference vehicle speed. Setting the cooling water target temperature anew
Cooling fan operation control device of the vehicle. 청구항 6에 있어서,
엔진의 회전수를 검출하는 엔진회전수센서(13)를 더 포함하여 구성되고;
상기 컨트롤러(9)가 판단하는 소정의 적용조건은 상기 엔진회전수센서(13)로부터 입력된 엔진회전수가 소정의 기준엔진회전수 이하인지의 여부를 포함하며, 상기 엔진회전수가 상기 기준엔진회전수 이하인 경우에 상기 온도증가치를 구하고 상기 냉각수 목표온도를 새로 설정하는 것
을 특징으로 하는 차량의 냉각팬 작동 제어장치.The method of claim 6,
It further comprises an engine speed sensor 13 for detecting the rotation speed of the engine;
The predetermined application condition determined by the controller 9 includes whether the engine speed input from the engine speed sensor 13 is equal to or less than a predetermined reference engine speed, and the engine speed is the reference engine speed. To obtain the temperature increase value and to set a new target temperature for cooling water when
Cooling fan operation control device of the vehicle.
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CN114294088A (en) * 2021-12-30 2022-04-08 潍柴动力股份有限公司 Cooling system control method and device, cooling system and driving equipment
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