KR100201107B1 - Air supply control device for engine idling - Google Patents
Air supply control device for engine idling Download PDFInfo
- Publication number
- KR100201107B1 KR100201107B1 KR1019960041315A KR19960041315A KR100201107B1 KR 100201107 B1 KR100201107 B1 KR 100201107B1 KR 1019960041315 A KR1019960041315 A KR 1019960041315A KR 19960041315 A KR19960041315 A KR 19960041315A KR 100201107 B1 KR100201107 B1 KR 100201107B1
- Authority
- KR
- South Korea
- Prior art keywords
- valve
- air supply
- control device
- idle
- supply control
- Prior art date
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0002—Controlling intake air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/08—Introducing corrections for particular operating conditions for idling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/1065—Mechanical control linkage between an actuator and the flap, e.g. including levers, gears, springs, clutches, limit stops of the like
Abstract
내용 없음.No content.
Description
본 발명은 엔진의 아이들 운전시 공기량 공급제어장치에 관한 것이다.The present invention relates to a device for supplying air volume during idle operation of an engine.
종래 엔진의 시동후 저온시의 아이들 운전시 혼합기가 너무 진하게 공급되는 것을 방지하는 장치로는 도 2에 도시하는 것과같이 드로틀밸브(11) 후방에 초크밸브(12)를 마련하고 스프링(13)에 의해 지지되는 다이어프램(14)을 상기 초크밸브에 연동하도록 바이패스관로(15)에 설치하는 구성으로 되어 있다.As a device for preventing the mixer from being supplied too thick during idle operation at low temperature after starting the engine, a choke valve 12 is provided behind the throttle valve 11 and the spring 13 is provided as shown in FIG. The diaphragm 14 supported by this structure is provided in the bypass line 15 so that the diaphragm 14 may be interlocked with the choke valve.
그러나 상기한 구조는 초크밸브에 연동하는 다이어프램 장치등 구조가 복잡하고 흡기매니폴드측의 부압에 의해 다이어프램(14)이 작동하여 공기량을 조절하기 때문에 작동응답 특성이 떨어지고 지속적인 아이들 운전시 공기량 제어가 곤란하다는 문제점이 지적되고 있다.However, the above structure has a complicated structure such as a diaphragm device interlocking with the choke valve, and the diaphragm 14 is operated by the negative pressure on the intake manifold side to adjust the air volume, so that the operation response characteristics are inferior and it is difficult to control the air volume during continuous idle operation. The problem is pointed out.
이에 본원 발명은 상기한 문제점을 감안하여 제안한 것으로서 그의 목적으로 하는바는 구조가 단순하며 엔진의 아이들 운전시 공기량을 효과적으로 제어하는 공기량 공급장치를 제공하는데 있다.Accordingly, the present invention has been proposed in view of the above problems, and its object is to provide an air amount supply device which has a simple structure and effectively controls the air amount during idle operation of the engine.
상기한 목적을 달성한기 위한 본 발명의 수단은Means of the present invention for achieving the above object is
드로틀밸브가 설치된 드로틀바디를 통해 흡기매니폴드에 공기를 공급하는 공기공급장치에 있어서,In the air supply device for supplying air to the intake manifold through the throttle body with a throttle valve,
상기 드로틀밸브의 전후를 우회하여 접속하는 바이패스관로와 ;Bypass pipe line for bypassing the front and rear of the throttle valve;
상기 드로틀밸브의 전방위치인 드로틀바디로부터 바이패스관로가 분기되는 접속지점에 개폐 가능하게 마련되는 아이들용 밸브와 ;An idle valve provided to be opened and closed at a connection point where the bypass pipe branches from the throttle body, which is a front position of the throttle valve;
엔진의 냉각수온을 검출하는 냉각수온센서와 배기가스의 산소농도를 검출하는 O2센서로부터의 정보에 의해 상기 아이들용 밸브의 개폐작동을 제어하는 전자제어장치와 ; 를 포함하여 구성되어 있다.An electronic controller for controlling the opening / closing operation of the idle valve based on information from a cooling water temperature sensor detecting an engine coolant temperature and an O 2 sensor detecting an oxygen concentration of exhaust gas; It is configured to include.
도 1은 본 발명에 의한 엔진의 아이들 운전시 공기량 공급제어장치를 나타내는 도면1 is a view showing the air amount supply control device during the idle operation of the engine according to the present invention
도 2는 종래기술2 is a prior art
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 그로틀바디 2 : 흡기매니폴드1: Grottle Body 2: Intake Manifold
3 : 드로틀밸브 4 : 바이패스관로3: throttle valve 4: bypass line
5 : 아이들용밸브 6 : 액츄에이터5: idle valve 6: actuator
7 : 전자제어방치 8 : 냉각수온센서7: electronic control device 8: cooling water temperature sensor
9 : O2센서9: O 2 sensor
이하 본 발명의 실시예를 첨부한 도면을 참조하여 설명한다.Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
도 1은 본 발명에 의한 엔진의 아이들 운전시 공기량 공급장치의 일실시예를 나타내는 도면으로 도면에 있어서 부호 1은 흡기매니폴드(2)에 접속되는 드로틀바디이다.1 is a view showing an embodiment of the air amount supply device during idle operation of the engine according to the present invention, in which 1 is a throttle body connected to the intake manifold 2.
상기 드로틀바디(1)내에는 공기공급량을 제어하는 드로틀밸브(3)가 설치되어 있으며 상기 드로틀밸브(3)의 전후방의 드로틀바디(1)에는 바이패스관로(4)가 분기 접속되어 있어 상기 드로틀밸브(3)의 조름 작동시 상기 바이패스관로(4)를 통해 공기가 흡기매니폴드(2)로 공급되어지게 된다.In the throttle body 1, a throttle valve 3 for controlling the air supply amount is provided, and a bypass pipe 4 is branched to the throttle body 1 in front and rear of the throttle valve 3, so that the throttle When the valve 3 is tightened, air is supplied to the intake manifold 2 through the bypass pipe 4.
상기 드로틀밸브(3)의 전방위치인 드로틀바디(1)로부터 바이패스관로(4)가 분기되는 접속지점에는 바이패스관로(4)를 차단 또는 개방하는 판상의 아이들용 밸브(5)가 설치되어 있다.At the connection point where the bypass conduit 4 diverges from the throttle body 1, which is a forward position of the throttle valve 3, a plate-shaped idle valve 5 for blocking or opening the bypass conduit 4 is provided. have.
상기 아이들용밸브(5)의 회동작동은 액츄에이터(6)에 의해 실행되며 상기 액츄에이터(6)는 전자제어장치(7)의 제어에 따라 상기 아이들용 밸브(5)를 개폐 작동 시킨다.The rotational operation of the idle valve 5 is performed by the actuator 6, and the actuator 6 opens and closes the idle valve 5 under the control of the electronic controller 7.
상기 전자제어장치(7)는 냉각수온을 검출하는 냉각수온센서(8)완 배기가스중 의 산소농도를 검출하는 O2센서(9)로부터의 신호정보에 의해 상기 액츄에이터(6)를 작동 제어한다.The electronic controller 7 operates and controls the actuator 6 by signal information from the O 2 sensor 9 which detects the oxygen concentration in the exhaust gas of the cooling water temperature sensor 8 which detects the coolant temperature. .
이와같은 본 발명은 엔진이 워밍업되기 전임 아이들 운전시 냉각수온센서(8)로부터 낮은 냉각수온이 출력되면 전자제어장치(7)는 액츄에어터(6)를 구동시켜 아이들용 밸브(5)를 회동개방시켜 공기가 바이패스관로(4)를 통해 드로틀밸브(3)를 우회하여 흡기매니폴드(2)에 공급하도록 제어한다.In the present invention as described above, when the coolant temperature is output from the coolant temperature sensor 8 during idle operation before the engine is warmed up, the electronic controller 7 drives the actuator 6 to rotate the idle valve 5. Opening is controlled so that air is bypassed to the throttle valve 3 through the bypass pipe 4 and supplied to the intake manifold 2.
만일 냉각수온이 정상으로 검출되면 아이들용 밸브(5)가 바이패스관로(4)를 차단하도록 제어하여 정상적인 아이들운전이 되도록 하며 다른 한면 냉각수온이 정상이더하도 O2센서(9)에 의해 혼합기가 너무 농후한 것으로 판정되면 바이패스관로(4)를 개방시켜 공기를 공급하도록 제어하게 된다.If the coolant temperature is detected as normal, the idle valve 5 blocks the bypass line 4 so that normal idle operation is possible. On the other side, the mixer is controlled by the O 2 sensor 9 even if the coolant temperature is normal. If it is determined to be too thick, the bypass pipe 4 is opened to control the air supply.
이상과 같은 본 발명의 아이들 운전시의 공기량 공급제어장치에 의하면 매우 간단한 구조로서 아이들 운전시 냉각수온도와 O2센서값에 따라 전자제어장치가 공기량을 제어하게 되므로 아이들 운전에 따른 배기가스 악화를 방지할 수 있도록 하는 효과가 있게된다.According to the air amount supply control device during idle operation of the present invention as described above, since the electronic controller controls the air amount according to the coolant temperature and O 2 sensor value during idle operation, it prevents the exhaust gas deterioration due to idle operation. It will be effective.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960041315A KR100201107B1 (en) | 1996-09-20 | 1996-09-20 | Air supply control device for engine idling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960041315A KR100201107B1 (en) | 1996-09-20 | 1996-09-20 | Air supply control device for engine idling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19980022223A KR19980022223A (en) | 1998-07-06 |
| KR100201107B1 true KR100201107B1 (en) | 1999-06-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960041315A KR100201107B1 (en) | 1996-09-20 | 1996-09-20 | Air supply control device for engine idling |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100201107B1 (en) |
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1996
- 1996-09-20 KR KR1019960041315A patent/KR100201107B1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR19980022223A (en) | 1998-07-06 |
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