KR200174492Y1 - Apparatus for controlling coolant temperature on the initial condition of engine - Google Patents

Apparatus for controlling coolant temperature on the initial condition of engine Download PDF

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Publication number
KR200174492Y1
KR200174492Y1 KR2019960049256U KR19960049256U KR200174492Y1 KR 200174492 Y1 KR200174492 Y1 KR 200174492Y1 KR 2019960049256 U KR2019960049256 U KR 2019960049256U KR 19960049256 U KR19960049256 U KR 19960049256U KR 200174492 Y1 KR200174492 Y1 KR 200174492Y1
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South Korea
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water temperature
engine
main relay
cooling fan
cooling water
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KR2019960049256U
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Korean (ko)
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KR19980036258U (en
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임종석
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정몽규
현대자동차주식회사
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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
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by 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
    • F01P2037/00—Controlling
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

본 고안은 엔진 초기 기동시 냉각수온 조절 장치에 관한 것으로, 냉각 수온을 감지하는 수온 센서(S)와, 상기 수온 센서(S)의 입려에 따라 메인 릴레이(RLY1)를 제어하는 마이컴(μ-com)과, 상기 메인 릴레이(RLY1)의 동작에 연동되는 냉각 팬 모터(M)로 구성되어, 기계적인 서머스탯을 사용하지 않고 전자 제어 유니트 내의 마이컴을 통해 메인 릴레이를 제어하여 엔진 초기 기동시 냉각수온을 조절함으로써, 코스트가 저감되고 회로가 안정화되는 효과가 있다.The present invention relates to a cooling water temperature control device at the initial start of the engine, the microcomputer (μ-com) for controlling the main relay (RLY1) according to the water temperature sensor (S) for detecting the cooling water temperature, and the water temperature sensor (S) is applied. ) And a cooling fan motor (M) interlocked with the operation of the main relay (RLY1), and controls the main relay through the microcomputer in the electronic control unit without using a mechanical thermostat to cool the water temperature at the initial start of the engine. By adjusting, the cost is reduced and the circuit is stabilized.

Description

엔진 초기 기동시 냉각수온 조절 장치Cooling water temperature control device at initial engine start

본 고안은 엔진 초기 기동시 냉각수온 조절 장치에 관한 것으로, 상세하게는 엔진 전자 제어 유니트 내의 마이컴(micro-com)을 통하여 메인 릴레이를 제어하여 엔진 초기 기동시 냉각수온을 조절하도록 한 엔진 초기 기동시 냉각수온 조절 장치에 관한 것이다.The present invention relates to a cooling water temperature control device at the initial start of the engine, and in detail, to control the main relay through a micro-com in the engine electronic control unit to control the cooling water temperature at the initial start of the engine. It relates to a cooling water temperature control device.

제1도는 종래 엔진 초기 기동시 냉각수온 조절 장치의 회로도이다.1 is a circuit diagram of a cooling water temperature control device at the start of a conventional engine.

배터리(B)가 점위스위치(IGN)와 메인 릴레이(RLY1) 및 냉각 팬 릴레이(RLY2)의 스위치단에 연결되고, 상기 점와스위치(IGN)가 타단이 접지된 상기 메인 릴레이(RLY1)의 여자코일에 연결된다.The excitation coil of the main relay RLY1 having the battery B connected to the switch terminals of the point switch IGN, the main relay RLY1 and the cooling fan relay RLY2, and the other end of the point and switch IGN grounded. Is connected to.

또, 상기 메인 릴레이(RLY1)의 스위치 타단이 서머스탯(T)을 거쳐 상기 냉각 팬 릴레이(RLY2)의 타단이 접지된 여자코일에 연결되며, 상기 냉각 팬 릴레이(RLY2)의 스위치 타단이 냉각 팬 모터(M)에 연결되고, 상기 냉각 팬 모터(2)는 접지되어 구성된다.In addition, the other end of the switch of the main relay (RLY1) is connected to the grounding excitation coil of the other end of the cooling fan relay (RLY2) via the thermostat (T), the other end of the switch of the cooling fan relay (RLY2) is a cooling fan It is connected to the motor M, the cooling fan motor 2 is configured to be grounded.

이에 따른 작용은, 운전자가 점화스위치(IGN)를 조작하여 엔진을 시동하면 메인 릴레이(RLY1)의 여자코일 주위에 자장이 형성되어 상기 메인 릴레이(RLY1)는 평시 오픈상태에서 크로스상태로 변환된다.As a result, when the driver starts the engine by operating the ignition switch IGN, a magnetic field is formed around the excitation coil of the main relay RLY1, and the main relay RLY1 is changed from the normally open state to the cross state.

이때, 서머스탯(T)은 냉각수온을 될 수 있는 한 빨리 올리기 위하여 오프상태를 유지하며, 냉각수온이 80℃ 전후가 되면 오프상태에서 온상태로 변환된다.At this time, the thermostat (T) is maintained in the off state to raise the cooling water temperature as soon as possible, when the cooling water temperature is about 80 ℃ is converted to the on state from the off state.

다음으로, 냉각 팬 릴레이(RLY2)가 연동되어 평시 오픈상태에서 크로스상태로 변환되며, 냉각 팬 모터(M)에 전원이 공급되어 상기 냉각 팬 모터(M)가 작동되고 연동되어 냉각 팬이 회전된다.Next, the cooling fan relay RLY2 is interlocked to change from the normally open state to the cross state, and power is supplied to the cooling fan motor M so that the cooling fan motor M is operated and interlocked to rotate the cooling fan. .

그러나, 상기한 종래의 엔진 초기 기동시 냉각수온 조절 장치는 냉각 팬 모터의 동작을 제어하기 위하여 기계적인 서머스탯을 사용하였음으로 코스트(cost)가 증가하는 문제점이 있었다.However, the conventional cooling water temperature control device at the initial start of the engine has a problem in that a cost increases due to the use of a mechanical thermostat to control the operation of the cooling fan motor.

본 고안은 상기한 문제점을 해결하기 위하여 안출된 것으로, 기계적인 서머스탯을 사용하지 않고 엔진 전자 제어 유니트 내의 마이컴을 통해 메인 릴레이를 제어하여 엔진 초기 기동시 냉각수온을 조절함으로써, 첫째, 기계적인 서머스탯을 사용하지 않아 고스트를 저감시키고 회로의 안정성을 향상시키며, 둘째, 메인 릴레이와 연동되는 다른 전장품을 부가적으로 제어함을 그 목적으로 한다.The present invention has been made to solve the above problems, by controlling the main relay through the microcomputer in the engine electronic control unit without using a mechanical thermostat, by adjusting the coolant temperature at the initial start of the engine, first, mechanical summer Its purpose is to reduce ghosting and improve circuit stability by not using stats, and secondly, to additionally control other electronic devices connected to the main relay.

제1도는 종래 엔진 초기 기동시 냉각수온 조절 장치의 회로도.1 is a circuit diagram of a cooling water temperature control device at the start of a conventional engine.

제2도는 본 고안의 실시예에 따른 엔진 초기 기동시 냉각수온 조절 장치의 회로도.2 is a circuit diagram of a cooling water temperature control device at the initial start of an engine according to an embodiment of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

B : 배터리 IGN : 점화스위치B: Battery IGN: Ignition Switch

RLY1 : 메인 릴레이 RLY2 : 냉각 팬 릴레이RLY1: main relay RLY2: cooling fan relay

μ-com : 마이컴 S : 수온 센서μ-com: Microcomputer S: Water temperature sensor

T : 서머스탯 TR : 트랜지스터T: Thermostat TR: Transistor

M : 냉각 팬 모터 M1-MN: 전장품M: Cooling Fan Motor M 1 -M N : Electronic Device

상기 목적을 달성하기 위한 본 고안의 엔진 초기 기동시 냉각수온 조절 장치는, 냉각수온을 감지하는 수온 센서와, 상기 수온 센서의 입력에 따라 메인 릴레이를 제어하는 마이컴과, 상기 메인 릴레이의 동작에 연동되는 냉각 팬 모터와, 상기 메인 릴레이의 동작에 연동되는 다른 전장품으로 이루어짐을 특징으로 한다.In order to achieve the above object, the cooling water temperature adjusting device at the initial start of an engine of the present invention includes a water temperature sensor detecting a cooling water temperature, a microcomputer controlling a main relay according to an input of the water temperature sensor, and interlocking with an operation of the main relay. It is characterized in that the cooling fan motor is made of, and other electrical equipment that is linked to the operation of the main relay.

이하, 본 고안의 엔진 초기 기동시 냉각수온 조절 장치를 첨부된 도면을 참조하여 보다 상세히 설명한다.Hereinafter, with reference to the accompanying drawings the cooling water temperature control device at the initial start of the engine of the present invention will be described in more detail.

제2도는 본 고안의 실시예에 따른 엔진 초기 기동시 냉각수온 조절 장치의 회로도이다.2 is a circuit diagram of a cooling water temperature control device at the initial start of an engine according to an embodiment of the present invention.

배터리(B)가 점화스위치(IGN)와 메인 릴레이(RLY1)의 스위치단 및 여자코일, 냉각 팬 릴레이(RLY2)의 스위치단에 연결되고, 상기 점화스위치(IGN)가 전자 제어 유니트 내 마이컴(μ-com)의 전원단에 접속된다.The battery B is connected to the switch end of the ignition switch IGN and the main relay RLY1, the excitation coil, and the switch end of the cooling fan relay RLY2, and the ignition switch IGN is connected to the microcomputer micro in the electronic control unit. -com) to the power supply terminal.

또, 상기 마이컴(μ-com)의 입력단이 냉각 수온을 감지하는 수온 센서(S)에 접속되고, 마이컴(μ-com)의 출력단이 에미터를 접지시킨 트랜지스터(TR)의 베이스에 접속되고, 상기 트랜지스터(TR)의 컬렉터가 상기 메인 릴레이(RLY1)의 여자코일에 접속된다.In addition, the input terminal of the microcomputer (μ-com) is connected to the water temperature sensor S for detecting the cooling water temperature, and the output terminal of the microcomputer (μ-com) is connected to the base of the transistor TR having the emitter grounded, The collector of the transistor TR is connected to the exciting coil of the main relay RLY1.

상기 메인 릴레이(RLY1)의 스위치단이 냉각 팬 릴레이(RLY2)의 타단을 접지시킨 여자코일과 복수개(N개)의 전장품(M1∼MN)에 병렬연결되고, 상기 냉각 팬 릴레이(RLY2)의 스위치단이 타단을 접지시킨 냉각 팬(70)에 연결되어 구성된다.The switch terminal of the main relay RLY1 is connected in parallel to the excitation coil which grounded the other end of the cooling fan relay RLY2 and a plurality of N electrical components M 1 to M N , and the cooling fan relay RLY2. The switch end of the is configured to be connected to the cooling fan 70 grounded the other end.

이하, 본 고안인 엔진 초기 기동시 냉각수온 조절 장치의 작용을 제2도에 도시된 실시예에 기초하여 설명한다.Hereinafter, the operation of the coolant temperature control device at the initial start of the engine of the present invention will be described based on the embodiment shown in FIG.

운전자가 점위스위치(IGN)를 조작하여 엔진을 시동하면 수온 센서(S)에 의하여 냉각수온이 감지되며, 이때는 엔진이 초기 기동상태이므로 낮은 냉각수온이 감지되어 마이컴(μ-com)에 입력된다.When the driver starts the engine by operating the position switch (IGN), the coolant temperature is detected by the water temperature sensor S. At this time, since the engine is in an initial starting state, a low coolant temperature is detected and input to the microcomputer (μ-com).

이에, 상기 마이컴(μ-com)은 출력단에 접속된 트랜지스터(TR)에 신호 전류를 인가하지 않아 메인 릴레이(RLY1)는 평시 상태인 오픈상태를 유지한다.Accordingly, the microcomputer μ-com does not apply a signal current to the transistor TR connected to the output terminal, so that the main relay RLY1 maintains the normally open state.

엔진이 가열되어 상기 수온 센서(S)를 통해 냉각수온이 80℃ 전후로 상승되었음이 감지되어 입력되면 상기 마이컴(μ-com)은 출력단에 접속된 트랜지스터(TR)에 신호 전류를 인가하며, 이는 바이어스전압으로 작용하여 상기 트랜지스터(TR)는 도통상태에 놓인다.When the engine is heated and sensed that the cooling water temperature has risen around 80 ° C through the water temperature sensor S, the microcomputer (μ-com) applies a signal current to the transistor TR connected to the output terminal, which is a bias. The transistor TR is in a conductive state by acting as a voltage.

이에, 전원 공급에 따라 메인 릴레이(RLY1)의 여자코일 주위에 자장이 형성되어 상기 메인 릴레이(RLY1)는 평시 오픈상태에서 크로스상태로 변환된다.Accordingly, a magnetic field is formed around the excitation coil of the main relay RLY1 according to the power supply, so that the main relay RLY1 is changed from the normally open state to the cross state.

다음으로, 냉각 팬 릴레이(RLY2)가 연동되어 평시 오픈상태에서 크로스상태로 변환되며, 냉각 팬 모터(M)에 전원이 공급되어 상기 냉각 팬 모터(M)가 작동되고 연동되어 냉각 팬이 회전된다.Next, the cooling fan relay RLY2 is interlocked to change from the normally open state to the cross state, and power is supplied to the cooling fan motor M so that the cooling fan motor M is operated and interlocked to rotate the cooling fan. .

또한, 상기 메인 릴레이(RLY1)와 동기되는 복수개(N개)의 전장품(M1∼MN)이 연동된다.In addition, the electrical component (M 1 ~M N) of the plurality (N) which is synchronized with the main relay (RLY1) is indexed.

상술한 바와 같이 본 고안인 엔진 초기 기동시 냉각수온 조절 장치는, 기계적인 서머스탯을 사용하지 않고 엔진 전자 제어 유니트 내의 마이컴을 통해 메인 릴레이를 제어하며 엔진 초기 기동시 냉각수온을 조절함으로써, 기계적인 서머스탯을 사용하지 않아 코스트를 저감시키고 회로의 안정성을 향상시키며, 메인 릴레이와 연동되는 다른 전장품이 부가적으로 제어되는 효과가 있다.As described above, the apparatus for controlling the coolant temperature at initial startup of the present invention controls the main relay through a microcomputer in the engine electronic control unit without using a mechanical thermostat and controls the coolant temperature at initial startup. The use of thermostats reduces costs, improves circuit stability, and additionally controls other electrical components that work with the main relay.

Claims (2)

냉각수온을 감지하는 수온 센서와, 상기 수온 센서의 입력에 따라 메인 릴레이를 제어하는 마이컴과, 상기 메인 릴레이의 동작에 연동되는 냉각 팬 모터로 구성됨을 특징으로 하는 엔진 초기 기동시 냉각수온 조절 장치.And a water temperature sensor for detecting a cooling water temperature, a microcomputer controlling a main relay according to an input of the water temperature sensor, and a cooling fan motor linked to the operation of the main relay. 제1항에 있어서, 상기 메인 릴레이의 동작에 연동되는 다른 전장품을 더 포함하여 구성됨을 특징으로 하는 엔진 초기 기동시 냉각수온 조절 장치.According to claim 1, Cooling water temperature control device at the initial start of the engine, characterized in that further comprises a further electrical equipment that is linked to the operation of the main relay.
KR2019960049256U 1996-12-14 1996-12-14 Apparatus for controlling coolant temperature on the initial condition of engine KR200174492Y1 (en)

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KR200174492Y1 true KR200174492Y1 (en) 2000-04-01

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