KR100354364B1 - Intake temperature control device of engine - Google Patents

Intake temperature control device of engine Download PDF

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Publication number
KR100354364B1
KR100354364B1 KR1019990055336A KR19990055336A KR100354364B1 KR 100354364 B1 KR100354364 B1 KR 100354364B1 KR 1019990055336 A KR1019990055336 A KR 1019990055336A KR 19990055336 A KR19990055336 A KR 19990055336A KR 100354364 B1 KR100354364 B1 KR 100354364B1
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South Korea
Prior art keywords
intake
valve
air
temperature
duct
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KR1019990055336A
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Korean (ko)
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KR20010054502A (en
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이원종
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현대자동차주식회사
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/04—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture
    • F02M31/042—Combustion air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/04—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture
    • F02M31/06—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot gases, e.g. by mixing cold and hot air
    • F02M31/068—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot gases, e.g. by mixing cold and hot air particular constructional aspects of the switching devices, e.g. connecting linkage between two control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/04—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture
    • F02M31/06—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot gases, e.g. by mixing cold and hot air
    • F02M31/07—Temperature-responsive control, e.g. using thermostatically-controlled valves

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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 발명의 목적은 엔진에 도입되는 흡기의 과열 및 과냉을 방지하고 최적 온도 조건을 유지토록 조절할 수 있는 엔진 흡기 온도 조절장치를 제공하는 데 있다.SUMMARY OF THE INVENTION An object of the present invention is to provide an engine intake temperature control apparatus capable of preventing overheating and overcooling of intake air introduced into an engine and controlling the optimum temperature condition.

이를 위해 본 발명은 라디에이터 팬이 설치되는 팬쉬라우드 후방에 접속되어 라디에이터를 통과하는 송풍 공기를 에어크리너로 도입하는 더운공기도입덕트를 포함하는 흡기계에 있어서,To this end, the present invention is an intake machine comprising a hot air induction duct connected to the rear of the fan shroud in which the radiator fan is installed to introduce the blowing air passing through the radiator into the air cleaner,

상기 더운공기도입덕트의 후방으로부터 분기되어 찬공기유입단부가 라디에이터를 벗어난 상부측에 위치하도록 접속되는 찬공기도입덕트와;A cold air induction duct branched from the rear of the hot air induction duct and connected to the cold air inlet end portion at an upper side of the radiator;

상기 더운공기도입덕트를 개폐하도록 설치되는 제1밸브 및 그 제1밸브를 작동시키는 제1액츄에이터와;A first valve installed to open and close the hot air induction duct and a first actuator to operate the first valve;

상기 찬공기도입덕트를 개폐하도록 설치되는 제2밸브 및 그 제2밸브를 작동시키는 제2액츄에이터와;A second valve installed to open and close the cold air induction duct, and a second actuator to operate the second valve;

상기 분리접속지점 후방으로 설치되어 도입되는 공기의 온도를 검출하는 흡기온 센서와;An intake air temperature sensor installed behind the separation point and detecting a temperature of the air introduced therein;

상기 흡기온 센서로부터 검출된 흡기온도가 상하한치 이내의 정상 온도 범위를 유지할 때에는 상기 제1액츄에이터를 구동하여 제1밸브로 하여금 더운공기도입덕트를 개방토록 제어하고, 상기 제2액츄에이터를 구동하여 제2밸브로 하여금 찬공기도입덕트를 폐쇄토록 제어하며, 상기 흡기온 센서로부터 검출된 흡기온도가 상한치 이상일 때는 상기 찬공기도입덕트도 개방토록 제어하는 전자제어유닛;으로 구성되어 있다.When the intake air temperature detected by the intake air temperature sensor maintains a normal temperature range within an upper and lower limit, the first actuator is driven to control the first valve to open a hot air induction duct, and the second actuator is driven to And an electronic control unit which controls two valves to close the cold air intake duct, and controls the cold air intake duct to open when the intake temperature detected by the intake air temperature sensor is equal to or higher than an upper limit.

Description

엔진 흡기 온도 조절장치{Intake temperature control device of engine}Intake temperature control device of engine

본 발명은 엔진 흡기 온도 조절장치에 관한 것이다.The present invention relates to an engine intake temperature control device.

연료를 연소시키기 위하여 실린더에 도입하는 공기는 에어크리너를 포함한 흡기계를 통해 외부(대기)로부터 직접 유입시키고 있어 대기온도의 영향을 받는다.The air introduced into the cylinder to combust the fuel is introduced directly from the outside (atmosphere) through an intake machine including an air cleaner, and is affected by the atmospheric temperature.

그런데 외기의 온도가 낮은 경우 엔진에 도입되는 공기(흡기)의 온도가 낮아져 연료의 기화를 방해하여 불완전 연소를 유발하고, 배기가스를 악화시키는 원인이 된다.However, when the temperature of the outside air is low, the temperature of the air (intake) introduced into the engine is lowered, which hinders the vaporization of the fuel, causing incomplete combustion, and causing the exhaust gas to deteriorate.

이때문에 실린더에 도입되는 흡기가 흡기계를 통과하는 동안에 별도의 가열장치를 사용하여 적정온도로 예열하는 방안이 제안되고 있다.For this reason, a method of preheating to an appropriate temperature by using a separate heating device while the intake air introduced into the cylinder passes through the intake machine has been proposed.

그러나 흡기계에 예열장치를 마련하는 것은 구조적으로 복잡하며 전기등의 가열원이 필요하고, 배기가스의 배출에너지를 이용한다 하더라도 그 열교환 시스템을 마련하는 것은 레이아웃 및 생산성에서 많은 문제점을 안고 있어 실용적 측면에서 크게 불리하다는 문제점이 있다.However, it is structurally complicated to provide a preheating device in the intake machine, and a heating source such as electricity is required, and even if the exhaust energy of exhaust gas is used, providing the heat exchange system has many problems in layout and productivity. There is a problem that is greatly disadvantaged.

이러한 문제점을 감안하여 본 출원인은 한국실용신안공보96-7889호를 통하여 자동차 엔진 흡기 예열용 라디에이터 팬쉬라우드 장치를 제안한 바 있다.In view of these problems, the present applicant has proposed a radiator fan shroud device for preheating the intake of an automobile engine through Korean Utility Model Publication No. 96-7889.

상기한 선등록 고안은 에어크리너로 공기를 도입한 에어호스를 라디에이터 후방에 접속하여 라디에이터를 통과하면서 냉각수를 냉각시키게 될 때 열교환에 의해 더워진 송풍 공기를 에어호스를 통해 수집하여 에어크리너를 거쳐 실린더로 흡입토록 하므로써, 차가운 흡기가 예열되도록 하고 있다.The above-mentioned pre-registration design collects the blown air heated by heat exchange through the air hose when the air hose, which introduces air into the air cleaner, is connected to the rear of the radiator to cool the cooling water while passing through the radiator. The cold intake is allowed to preheat by inhalation.

그러나 상기한 구조에 의하면 흡기의 예열이 필요없는 기후 조건 및 엔진의 과열시에는 오히려 흡기 온도가 너무 높아져 체적 효율을 떨어뜨리므로써 엔진의 출력 저하를 유발하는 부작용이 지적되고 있다.However, according to the above-described structure, the side effect of causing the engine output to be lowered by reducing the volumetric efficiency of the intake air temperature is too high when the climate condition and the engine overheating do not require preheating of the intake air.

이에 본 발명은 상기한 점을 감안하여 제안한 것으로서 그의 목적으로 하는것은 엔진에 도입되는 흡기의 과열 및 과냉을 방지하고 최적 온도 조건을 유지토록 조절할 수 있는 엔진 흡기 온도 조절장치를 제공하는 데 있다.Accordingly, the present invention has been proposed in view of the above-described objects, and an object thereof is to provide an engine intake temperature control device capable of controlling overheating and overcooling of intake air introduced into an engine and maintaining the optimum temperature condition.

상기한 목적을 달성하기 위하여 본 발명의 엔진 흡기 온도 조절장치는 라디에이터 팬이 설치되는 팬쉬라우드 후방에 접속되어 라디에이터를 통과하는 송풍 공기를 에어크리너로 도입하는 더운공기도입덕트를 포함하는 흡기계에 있어서,In order to achieve the above object, the engine intake temperature control apparatus of the present invention is connected to a rear fan shroud in which a radiator fan is installed, and includes a hot air induction duct for introducing blown air passing through the radiator into the air cleaner. In

상기 더운공기도입덕트의 후방으로부터 분기되어 찬공기유입단부가 라디에이터를 벗어난 상부측에 위치하도록 접속되는 찬공기도입덕트와;A cold air induction duct branched from the rear of the hot air induction duct and connected to the cold air inlet end portion at an upper side of the radiator;

상기 더운공기도입덕트를 개폐하도록 설치되는 제1밸브 및 그 제1밸브를 작동시키는 제1액츄에이터와;A first valve installed to open and close the hot air induction duct and a first actuator to operate the first valve;

상기 찬공기도입덕트를 개폐하도록 설치되는 제2밸브 및 그 제2밸브를 작동시키는 제2액츄에이터와;A second valve installed to open and close the cold air induction duct, and a second actuator to operate the second valve;

상기 분리접속지점 후방으로 설치되어 도입되는 공기의 온도를 검출하는 흡기온 센서와;An intake air temperature sensor installed behind the separation point and detecting a temperature of the air introduced therein;

상기 흡기온 센서로부터 검출된 흡기온도가 상하한치 이내의 정상 온도 범위를 유지할 때에는 상기 제1액츄에이터를 구동하여 제1밸브로 하여금 더운공기도입덕트를 개방토록 제어하고, 상기 제2액츄에이터를 구동하여 제2밸브로 하여금 찬공기도입덕트를 폐쇄토록 제어하며, 상기 흡기온센서로부터 검출된 흡기온도가 상한치 이상일 때는 상기 찬공기도입덕트도 개방토록 제어하는 전자제어유닛;으로 구성되어 있다.When the intake air temperature detected by the intake air temperature sensor maintains a normal temperature range within an upper and lower limit, the first actuator is driven to control the first valve to open a hot air induction duct, and the second actuator is driven to And an electronic control unit which controls two valves to close the cold air intake duct, and controls the cold air intake duct to open when the intake temperature detected by the intake air temperature sensor is equal to or higher than an upper limit.

도 1은 본 발명의 분해사시도1 is an exploded perspective view of the present invention

도 2는 본 발명의 조립 상태를 나타내는 정단면도Figure 2 is a front sectional view showing an assembled state of the present invention.

도 3은 본 발명의 제어블록도3 is a control block diagram of the present invention;

※도면의 주요 부분에 대한 부호의 설명※ Explanation of code for main part of drawing

1 : 라디에이터 2 : 팬쉬라우드1: radiator 2: fan shroud

4 : 더운공기도입덕트 5 : 에어크리너4: hot air intake duct 5: air cleaner

6 : 찬공기도입덕트 7 : 제1밸브6: cold air induction duct 7: first valve

8 : 제1액츄에이터 9 : 제2밸브8: 1st actuator 9: 2nd valve

10 : 제2액츄에이터 11 : 흡기온센서10 second actuator 11 intake air temperature sensor

12 : 분기접속지점 13 : 전자제어유닛12: branch connection point 13: electronic control unit

이하 본 발명의 구성과 작용을 첨부한 도면을 참조하여 설명한다.Hereinafter, the configuration and operation of the present invention will be described with reference to the accompanying drawings.

도 1은 본 발명의 분해사시도이며, 도 2는 본 발명의 조립 상태의 정단면도이며, 도 3은 본 발명의 제어블록도이다.1 is an exploded perspective view of the present invention, Figure 2 is a front sectional view of the assembled state of the present invention, Figure 3 is a control block diagram of the present invention.

도 1에 있어서, 부호 1은 엔진룸 전방에 설치되는 라디에이터이며, 부호 2는 송풍팬(3)을 지지하는 팬쉬라우드이다.In Fig. 1, reference numeral 1 denotes a radiator provided in front of the engine room, and reference numeral 2 denotes a fan shroud that supports the blowing fan 3.

팬쉬라우드(2)에는 더운공기도입덕트(4)가 접속되며, 더운공기도입덕트(4)는 에어크리너(5)에 연결되어 있다.The hot air induction duct 4 is connected to the fan shroud 2, and the hot air induction duct 4 is connected to the air cleaner 5.

더운공기도입덕트(4)의 후단측에는 찬공기도입덕트(6)가 분기접속되어 있고, 찬공기도입덕트(6)의 선단인 찬공기유입단부(6a)는 라디에이터(1)를 벗어난 위치, 예를 들면 측면이나 또는 상부측에 위치하도록 설치되어 있다.The cold air inlet duct 6 is branched to the rear end side of the hot air induction duct 4, and the cold air inlet end 6a, which is the distal end of the cold air induction duct 6, is positioned outside the radiator 1, for example. For example, it is provided so that it may be located in the side or upper side.

상기 더운공기도입덕트(4)에는 더운공기의 유입을 허용하거나 또는 차단하도록 작동되는 원판형의 제1밸브(7)가 설치되고, 제1밸브(7)는 전기적 작동체인 제1액츄에이터(8)에 의해 회동작동한다.The hot air induction duct 4 is provided with a disc-shaped first valve 7 which is operated to allow or block the inflow of hot air, and the first valve 7 is a first actuator 8 which is an electrical actuator. Rotate by

그리고 찬공기도입덕트(6)에는 찬공기의 유입을 차단하거나 또는 허용토록 개방되는 원판형의 제2밸브(9)가 회동가능하고 설치되고, 제2밸브(9)는 제2액츄에이터(10)에 의해 회동 작동된다.And the cold air induction duct (6) is provided with a rotatable second valve (9) is rotatable and installed to block or allow the inflow of cold air, the second valve (9) is the second actuator (10) It is operated by rotation.

양측 덕트(4)(6)의 분기 접속지점(12) 후방인 합류지점이나 또는 에어크리너(5)에는 유입되는 흡기의 온도를 측정하는 흡기온센서(11)가 설치되어 있다.An air intake temperature sensor 11 for measuring the temperature of the intake air is provided at the confluence point at the rear of the branch connection point 12 of the two ducts 4 and 6 or the air cleaner 5.

상기 흡기온센서(11)에 의해 검출된 흡기온도에 의해 전자제어유닛(13)이 상기 제1 및 제2액츄에이터(8)(10)를 구동 제어 한다.The electronic control unit 13 drives and controls the first and second actuators 8 and 10 by the intake air temperature detected by the intake air temperature sensor 11.

이하 본 발명의 작동에 대하여 설명한다.Hereinafter, the operation of the present invention will be described.

흡기온도가 설정된 상한치, 예를 들여 50℃를 넘어서면 흡기효율이 저하되는 것으로 가정할때 흡기온도의 상한치는 50℃로 설정하게 되며, 이 값은 전자제어유닛(13)에 기억저장 된다.If the intake air temperature exceeds the set upper limit value, for example, 50 ° C., the intake efficiency is lowered, and the upper limit of the intake air temperature is set to 50 ° C., and this value is stored and stored in the electronic control unit 13.

흡기온센서(11)가 검출한 흡기온도가 상한치이내일 때는 전자제어유닛(13)은 제1액츄에이터(8)를 구동하여 제1밸브(7)로 하여금 더운공기도입덕트(4)를 개방하고, 제2밸브(9)는 찬공기도입덕트(6)를 폐쇄토록 제2액츄에이터(10)를 구동제어한다.When the intake air temperature detected by the intake air temperature sensor 11 is within the upper limit, the electronic control unit 13 drives the first actuator 8 to cause the first valve 7 to open the hot air induction duct 4, The second valve 9 drives and controls the second actuator 10 to close the cold air intake duct 6.

이에따라 라디에이터(1)를 통과하면서 더워진 예열공기가 에어크리너(5)를 통하여 엔진에 공급된다.Accordingly, the warmed preheating air passing through the radiator 1 is supplied to the engine through the air cleaner 5.

그러나 흡기온센서(11)로부터 검출된 온도가 상한치에 도달하게 되면 전자제어장치(13)는 제2액츄에이터(10)를 구동하여 제2밸브(9)를 개방토록 제어하여 찬공기가 찬공기도입덕트(6)를 통하여 도입되도록하여 흡기온도를 허용치 범위내로 떨어뜨리게 된다.However, when the temperature detected from the intake air temperature sensor 11 reaches the upper limit value, the electronic controller 13 drives the second actuator 10 to control the second valve 9 to be opened so that cold air is filled with cold air. It is introduced through the duct 6 to lower the intake air temperature within the allowable range.

찬공기가 더운공기와 함께 공급됨에도 불구하고 흡기온도가 떨어지지 아니하고 상한치 이상을 계속 유지한다면, 예를들면 10초이상 계속 상한치 이상이 유지된다면 전자제어유닛(13)은 제1액츄에이터(8)를 구동하여 제1밸브(7)가 더운공기도입덕트(4)를 폐쇄토록 제어하게 된다.If cold air is supplied with hot air and the intake temperature is not lowered and is kept above the upper limit, for example, if the upper limit is kept for 10 seconds or more, the electronic control unit 13 drives the first actuator 8. Thus, the first valve 7 controls the hot air induction duct 4 to be closed.

이에따라 흡기 온도가 강하하여 하한치, 예를들어 25℃ 이하로 떨어진 것으로 검출되면 전자제어유닛(13)은 제2액츄에이터(10)를 구동하여 제2밸브(9)를 차단하고, 제1액츄에이터(8)를 구동하여 제1밸브(7)를 개방하도록 제어한다.Accordingly, when the intake air temperature drops and is detected to fall below a lower limit, for example, 25 ° C. or lower, the electronic control unit 13 drives the second actuator 10 to shut off the second valve 9, and the first actuator 8. ) To control the opening of the first valve (7).

이와같은 상태에서는 에어크리너(5)에 도입되는 공기가 라디에이터(1)를 통과한 것이어서 흡기온도가 다시 상승하게 되며, 흡기온센서(5)에 의해 검출되는 흡기온 값이 상하한치를 기록함에 따라 앞서와 같은 제어과정을 반복하게 된다.In this state, the air introduced into the air cleaner 5 has passed through the radiator 1 so that the intake air temperature rises again, and the intake air temperature value detected by the intake air temperature sensor 5 records the upper and lower limits. The same control process is repeated.

한편 흡기온이 상한치를 넘어서 제1밸브(7)와 제2밸브(9)가 동시에 열린 상태에서 흡기온이 상승을 멈추고 계속 하강하게 되면, 양측 밸브(7)(9)가 열린 상태를 유지하게 되며, 온도가 더욱 하강하여 흡기온이 하한치로 검출되면 다시 전자제어장치(13)는 제2액츄에이터(10)를 구동하여 제2밸브(9)를 폐쇄토록 제어하게 된다.On the other hand, if the intake air temperature stops rising while the intake air temperature exceeds the upper limit and the first valve 7 and the second valve 9 are open at the same time, both valves 7 and 9 remain open. When the temperature is further lowered and the intake air temperature is detected as the lower limit value, the electronic controller 13 again drives the second actuator 10 to control the second valve 9 to be closed.

이와같은 방식으로 흡기온이 한계치 이상으로 과열되는 것을 방지하게 된다.In this way, the intake air temperature is prevented from overheating above the threshold.

이상과 같은 본 발명에 의하면 라디에이터를 통과하면서 예열된 공기를 엔진에 도입함과 함께 찬공기를 도입하는 덕트를 별도로 마련하고 찬공기와 더운 공기의 도입을 선택적으로 적절히 조정제어하므로써 예열공기의 과열로 인한 흡기효율 및 엔진 출력의 저하를 방지하게 되는 효과가 있다.According to the present invention as described above, by introducing a preheated air while passing through the radiator to the engine, by separately providing a duct for introducing cold air and by selectively appropriately controlling and controlling the introduction of cold air and hot air, There is an effect of preventing a decrease in intake efficiency and engine output due to.

Claims (4)

라디에이터 팬이 설치되는 팬쉬라우드 후방에 접속되어 라디에이터를 통과하는 송풍 공기를 에어크리너로 도입하는 더운공기 도입 덕트(4)와, 상기 더운공기도입덕트(4)의 후방으로부터 분기되어 찬공기유입단부가 라디에이터를 벗어난 상부측에 위치하도록 접속되는 찬공기도입덕트(6)와, 상기 더운공기도입덕트를 개폐하도록 설치되는 제1밸브(7) 및 그 제1밸브를 작동시키는 제1액츄에이터(8)와, 상기 찬공기입덕트를 개폐하도록 설치되는 제2밸브(9) 및 그 제2밸브를 작동시키는 제2액츄에이터(10)를 포함하는 흡기계에 있어서,The hot air inlet duct 4 connected to the rear of the fan shroud where the radiator fan is installed and introduces the blowing air passing through the radiator to the air cleaner, and branched from the rear of the hot air inlet duct 4 to receive cold air inlet end. Cold air intake duct (6) connected to the upper side away from the radiator, a first valve (7) installed to open and close the hot air intake duct, and a first actuator (8) for operating the first valve. And a second valve 9 installed to open and close the cold air duct, and a second actuator 10 for operating the second valve. 상기 분리접속지점 후방으로 설치되어 도입되는 공기의 온도를 검출하는 흡기온 센서(11)와;An intake air temperature sensor 11 installed behind the separation connection point and detecting a temperature of the air introduced therein; 상기 흡기온 센서로부터 검출된 흡기온도가 상하한치 이내의 정상 온도 범위를 유지할 때에는 상기 제1액츄에이터를 구동하여 제1밸브로 하여금 더운공기도입덕트를 개방토록 제어하고, 상기 제2액츄에이터를 구동하여 제2밸브로 하여금 찬공기도입덕트를 폐쇄토록 제어하며, 상기 흡기온 센서로부터 검출된 흡기온도가 상한치 이상일 때는 상기 찬공기도입덕트도 개방토록 제어하되,When the intake air temperature detected by the intake air temperature sensor maintains a normal temperature range within an upper and lower limit, the first actuator is driven to control the first valve to open a hot air induction duct, and the second actuator is driven to The valve controls the cold air intake duct to be closed, and when the intake temperature detected from the intake air temperature sensor is higher than the upper limit, the cold air intake duct is also controlled to open. 상기 흡기온 센서가 검출한 상한치의 흡기온 값에 의하여 상기 제 2 밸브(9)가 개방 작동된 후 일정시간 경과후에도 흡기온이 상한치 이상을 유지하면 상기 제1밸브(7)가 폐쇄되도록 제1액츄에이터(8)를 구동 제어하는 전자제어유닛(13);으로 구성되는 것을 특징으로 하는 엔진 흡기 온도 조절장치.After the second valve 9 is opened by the intake temperature value detected by the intake temperature sensor, the first valve 7 is closed when the intake temperature is maintained above the upper limit after a certain time. And an electronic control unit (13) for driving control of the actuator (8). 삭제delete 제 1 항에 있어서,The method of claim 1, 상기 흡기온 센서(11)가 검출한 상한치의 흡기온 값에 의하여 상기 제2밸브(9)가 개방 작동된 후 흡기온도가 하강을 시작하면 흡기온센서(11)에 의해 하한치가 검출될 때까지 제1밸브(7)와 제2밸브(9)의 동시 개방 상태를 유지토록 제어하며, 하한치가 검출되면 상기 제2밸브를 폐쇄토록 제2액츄에이터를 제어하게 되는 것을 특징으로 하는 엔진 흡기 온도 조절장치.If the intake temperature starts to fall after the second valve 9 is opened by the intake temperature value of the upper limit detected by the intake temperature sensor 11 until the lower limit is detected by the intake temperature sensor 11. The engine intake temperature control device, characterized in that the control of the first valve 7 and the second valve 9 to maintain the simultaneous open state, and to control the second actuator to close the second valve when the lower limit value is detected. . 제 1 항에 있어서,The method of claim 1, 상기 제2밸브가 개방되고 제1밸브는 폐쇄된 후에는 흡기온이 하한치 값으로 검출될 때까지 찬공기도입덕트를 통하여 흡기를 도입하며, 흡기온센서를 통해 흡기의 하한치가 검출되면 상기 제2밸브(9)를 폐쇄하고 제1밸브(7)는 개방토록 절환 제어하는 것을 특징으로 하는 엔진 흡기 온도 조절장치.After the second valve is opened and the first valve is closed, the intake air is introduced through the cold air induction duct until the intake air temperature is detected as the lower limit value, and when the lower limit value of the intake air is detected through the intake air temperature sensor, An engine intake temperature regulating device, characterized in that the valve 9 is closed and the first valve 7 is switched to open.
KR1019990055336A 1999-12-07 1999-12-07 Intake temperature control device of engine KR100354364B1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4292949A (en) * 1979-08-30 1981-10-06 Filterwerk Mann & Hummel Gmbh Electronically controlled combustion air mixing valve for internal combustion engines
JPS5879061U (en) * 1981-11-24 1983-05-28 日産自動車株式会社 Internal combustion engine intake passage device
JPS60128968A (en) * 1983-12-15 1985-07-10 Nissan Motor Co Ltd Suction heating mechanism for internal-combustion engine
US5046473A (en) * 1990-04-19 1991-09-10 Onan Corporation Automatic air intake temperature regulator apparatus and method
JPH0749063A (en) * 1993-06-03 1995-02-21 Nippondenso Co Ltd Intake temperature control device of internal combustion engine for vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4292949A (en) * 1979-08-30 1981-10-06 Filterwerk Mann & Hummel Gmbh Electronically controlled combustion air mixing valve for internal combustion engines
JPS5879061U (en) * 1981-11-24 1983-05-28 日産自動車株式会社 Internal combustion engine intake passage device
JPS60128968A (en) * 1983-12-15 1985-07-10 Nissan Motor Co Ltd Suction heating mechanism for internal-combustion engine
US5046473A (en) * 1990-04-19 1991-09-10 Onan Corporation Automatic air intake temperature regulator apparatus and method
JPH0749063A (en) * 1993-06-03 1995-02-21 Nippondenso Co Ltd Intake temperature control device of internal combustion engine for vehicle

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