KR19980044264U - Engine operation control device by engine temperature at idle - Google Patents
Engine operation control device by engine temperature at idle Download PDFInfo
- Publication number
- KR19980044264U KR19980044264U KR2019960057398U KR19960057398U KR19980044264U KR 19980044264 U KR19980044264 U KR 19980044264U KR 2019960057398 U KR2019960057398 U KR 2019960057398U KR 19960057398 U KR19960057398 U KR 19960057398U KR 19980044264 U KR19980044264 U KR 19980044264U
- Authority
- KR
- South Korea
- Prior art keywords
- engine
- engine speed
- rpm
- temperature
- coolant temperature
- Prior art date
Links
- 239000000446 fuel Substances 0.000 claims abstract description 36
- 239000002826 coolant Substances 0.000 claims abstract description 22
- 238000002347 injection Methods 0.000 claims abstract description 20
- 239000007924 injection Substances 0.000 claims abstract description 20
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 claims description 2
- 238000013021 overheating Methods 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/12—Introducing corrections for particular operating conditions for deceleration
- F02D41/123—Introducing corrections for particular operating conditions for deceleration the fuel injection being cut-off
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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
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
- F02D2009/0201—Arrangements; Control features; Details thereof
- F02D2009/0223—Cooling water temperature
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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
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/101—Engine speed
Abstract
본 고안은 공회전시 엔진의 회전수가 과도하게 증가하면 스로틀밸브와 연료 인젝터를 작동시켜 엔진을 정지시킬 수 있도록 하는 공회전시 엔진온도에 의한 엔진 동작제어장치에 관한 것이다. 즉 이는 엔진의 냉각수 온도를 감지하는 냉각수온 센서(100)와, 엔진의 회전수(RPM)를 감지하는 엔진회전수 센서(200)와, 공회전시 냉각수온도에 대한 기준 엔진회전수(RPM.T)를 연산하고 이와 엔진회전수(RPM)가 대비하여 기준 엔진회전수(RPM.T)보다 엔진회전수(RPM)가 높게 검출시 연료인젝터(400)의 연료분사를 차단하는 엔진 전자제어장치(300)를 구성함으로써, 과도한 공회전으로 인한 엔진의 과열을 방지할 수 있는 것이다.The present invention relates to an engine operation control apparatus according to the engine temperature at idling to stop the engine by operating the throttle valve and the fuel injector when the engine speed is excessively increased at idling. That is, the coolant temperature sensor 100 for detecting the coolant temperature of the engine, the engine speed sensor 200 for detecting the engine speed (RPM), and the reference engine speed (RPM.T) for the coolant temperature at idle. ) And the engine electronic controller which blocks the fuel injection of the fuel injector 400 when the engine speed (RPM) is detected to be higher than the reference engine speed (RPM.T). By constructing 300, it is possible to prevent overheating of the engine due to excessive idling.
Description
본 고안은 공회전시 엔진온도에 의한 엔진 동작제어장치에 관한 것으로서, 더욱 상세하게는 공회전시 엔진의 회전수가 과도하게 증가하면 스로틀밸브와 연료 인젝터를 작동시켜 엔진을 정지시킬 수 있도록 하는 공회전시 엔진온도에 의한 엔진 동작제어장치에 관한 것이다.The present invention relates to an engine operation control apparatus according to the engine temperature at idle, and more particularly, the engine temperature at idle to stop the engine by operating the throttle valve and fuel injector when the engine speed is excessively increased during idling. The present invention relates to an engine operation control apparatus.
종래 연소실에 공급되는 연료분사량을 조절하는 장치를 도 3에 의해서 살펴보면, 공기량을 감지하는 흡입공기량 센서(101)와, 엔진회전수를 감지하는 엔진회전수 센서(102)와, 흡입공기의 온도를 감지하는 흡입공기 흡입공기온도센서(103)와, 냉각수의 온도를 감지하는 냉각수온 센서(104)와, 스로틀밸브의 개도량을 감지하는 TPS(105;스로틀밸브의 개도량을 감지하는 센서를 말한다)와, 시동상태를 결정하는 시동키(106)와, 이들에 의해 감지되는 흡입공기량과 엔진회전수에 의해 기본 연료분사량을 계산하고 이어서 냉각수 온도, 흡입공기 온도, 스로틀밸브의 개도량, 시동여부에 따라 이 기본 연료분사량을 보정하여 보정 연료분사량을 결정하고 이를 근거로 연료인젝터(108)의 연료분사량을 조절하는 엔진 전자제어장치(107)로 구성되어 있다.Referring to Figure 3 of the conventional apparatus for adjusting the fuel injection amount supplied to the combustion chamber, the intake air amount sensor 101 for detecting the amount of air, the engine speed sensor 102 for detecting the engine speed and the temperature of the intake air Suction air suction air temperature sensor 103 for sensing, the coolant temperature sensor 104 for sensing the temperature of the coolant, and the TPS 105 for detecting the opening amount of the throttle valve refers to a sensor for detecting the opening amount of the throttle valve. ), The start key 106 for determining the starting state, the amount of intake air and the engine speed detected by the engine, and then calculate the basic fuel injection amount, followed by the coolant temperature, intake air temperature, opening amount of the throttle valve, and whether And the engine electronic controller 107 which corrects the basic fuel injection amount to determine the corrected fuel injection amount and adjusts the fuel injection amount of the fuel injector 108 based on the correction.
먼저 엔진 전자제어장치(107)는 흡입공기량 센서(101)에 의해 감지되어 입력되는 흡입 공기량에 대한 정보와 엔진회전수 센서(102)에 의해 감지되는 엔진회전수에 대한 정보를 공급받아 기본 연료분사량(여기서 연료분사량은 연료인젝터(108)의 분사시간에 의해 결정된다)을 구한다. 그리고, 엔진 전자제어장치(107)는 엔진의 다른 환경, 즉 흡입공기 온도센서(103)에 의해 감지되는 흡입공기의 온도와, 냉각수온 센서(104)에 의해 감지되는 냉각수의 온도, TPS(105)에 의해 감지되는 스로틀밸브의 개도량, 시동키(106)의 위치에 따라 보정 연료분사량을 구한다. 이어서 위에서 구한 기본 연료분사량에 보정 연료분사량을 가산하여 최종적으로 연료분사량을 계산한다. 그 다음에 엔진 전자제어장치(107)는 이렇게 연산된 연료분사량에 대응되게 연료인젝터(108)를 작동시켜 엔진의 연소실에 분사되는 연료량을 조절하는 것이다. 이에 따라 연소실에 흡입공기량, 엔진회전수, 흡입공기 온도, 냉각수 온도, 스로틀밸브의 개도량, 시동상태 등에 맞는 혼합기가 유입되어 엔진의 출력을 최적의 상태로 유지할 수 있을 뿐만 아니라 유해한 배기가스의 배출을 줄일 수 있는 것이다.First, the engine electronic controller 107 receives the basic fuel injection amount by receiving the information on the intake air amount detected and input by the intake air amount sensor 101 and the information on the engine speed detected by the engine speed sensor 102. (Herein, the fuel injection amount is determined by the injection time of the fuel injector 108). In addition, the engine electronic controller 107 may be configured to detect the temperature of the intake air detected by another environment of the engine, that is, the intake air temperature sensor 103, the temperature of the coolant detected by the coolant temperature sensor 104, and the TPS 105. The corrected fuel injection amount is obtained according to the opening amount of the throttle valve and the position of the start key 106 detected by the " Then, the fuel injection amount is finally calculated by adding the corrected fuel injection amount to the basic fuel injection amount obtained above. The engine electronic controller 107 then operates the fuel injector 108 to correspond to the fuel injection amount thus calculated to adjust the amount of fuel injected into the combustion chamber of the engine. As a result, a mixer suitable for the intake air volume, engine speed, intake air temperature, coolant temperature, opening amount of the throttle valve, starting state, etc. is introduced into the combustion chamber, so that the output of the engine can be maintained at an optimum state and exhaust of harmful exhaust gas is generated. This can be reduced.
여기서, 엔진 전자제어장치(107)는 흡입공기량을 흡입공기량과 엔진회전수를 이용하여 구한다. 즉 엔진 전자제어장치(107)는 수학식 1에 의해 흡입공기량을 계산하는 것이다.Here, the engine electronic controller 107 obtains the intake air amount using the intake air amount and the engine speed. That is, the engine electronic controller 107 calculates the intake air amount by the equation (1).
[수학식 1][Equation 1]
A'n=A'n-1+(An-An-1)×CA ' n = A' n-1 + (A n -A n-1 ) × C
여기서, A'n은 흡입공기량 센서(101)의 입력신호이고, A'n-1은 n-1번째 필터링된 신호이고, An은 로오(Raw)신호이며, C는 엔진회전수와 흡입공기량 센서(100)의 맵(MAP)에서 구한 필러링 계수이다.Here, A'n is an input signal of the intake air amount sensor 101, A'n-1 is the n-1th filtered signal, An is a Raw signal, C is the engine speed and intake air amount sensor It is a filler coefficient calculated | required from the map MAP of (100).
상기한 바와 같이 흡입공기량을 구하고, 흡입공기량을 이용하여 연료인젝터의 연료분사량을 조절함으로써, 연료분사량을 적절하게 조절할 수 있으며, 더 나아가서는 유해한 배기가스의 배출을 줄일 수 있다. 그러나 차량을 장시간동안 공회전시키게 되면 엔진이 과열되는 결점을 가지고 있으며, 또한 유해한 배기가스가 배출되어 환경오염의 요인이 되는 결점이 있다.By calculating the intake air amount as described above and adjusting the fuel injection amount of the fuel injector by using the intake air amount, the fuel injection amount can be appropriately adjusted, and furthermore, the emission of harmful exhaust gas can be reduced. However, when the vehicle is idling for a long time, the engine has a disadvantage of overheating, and harmful exhaust gas is emitted, which is a cause of environmental pollution.
이에 본 고안은 상기한 바와 같은 종래의 결점을 해결하기 위해서 제안된 것으로, 공회전시 엔진의 회전수, 즉 엔진 냉각수의 온도가 과도하게 증가하면 스로틀 밸브와 연료인젝터를 작동시켜 엔진을 정지시킬 수 있도록 하는 공회전시 엔진온도에 의한 엔진 동작제어장치를 제공하고자 하는데 그 목적이 있는 것이다.The present invention has been proposed to solve the above-mentioned drawbacks, and when the engine speed, i.e., the temperature of the engine coolant, increases excessively during idling, the engine can be stopped by operating the throttle valve and the fuel injector. The purpose is to provide an engine operation control device based on the engine temperature during idling.
도 1은 본 고안에 따른 블록 구성도,1 is a block diagram according to the present invention,
도 2는 본 고안의 동작상태를 보인 흐름도,2 is a flow chart showing an operating state of the present invention,
도 3은 종래 고안에 따른 구성 블록도이다.3 is a block diagram illustrating a conventional design.
* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
100 : 냉각수온 센서200 : 엔진회전수 센서100: cooling water temperature sensor 200: engine speed sensor
300 : 엔진 전자제어장치400 : 연료인젝터300: engine electronic control device 400: fuel injector
500 : 흡입공기량 센서500: intake air volume sensor
이하 본 고안의 일 실시예에 따른 구성을 첨부된 예시도면과 함께 보다 상세히 설명하면 다음과 같다.Hereinafter, the configuration according to an embodiment of the present invention will be described in detail with the accompanying drawings.
도 1은 본 고안에 따른 구성 블록도이고, 도 2는 본 고안의 동작상태를 도시한 흐름도이다.1 is a block diagram according to the present invention, Figure 2 is a flow chart showing an operating state of the present invention.
본 고안은 도 1에 도시한 바와 같이 엔진의 냉각수 온도를 감지하는 냉각수온 센서(100)와, 엔진의 회전수(RPM)를 감지하는 엔진회전수 센서(200)와, 아이들 운전시 냉각수 온도에 대한 기준 엔진회전수(RPM.T)를 연산하고 이와 엔진회전수(RPM)가 대비하여 기준 엔진회전수(RPM.T)보다 엔진회전수(RPM)가 높게 검출시 연료인젝터(400)의 연료분사를 차단하는 엔진 전자제어장치(300)로 구성된다.The present invention, as shown in Figure 1 coolant temperature sensor 100 for detecting the coolant temperature of the engine, the engine speed sensor 200 for detecting the RPM (RPM) of the engine, and the coolant temperature during idle operation Calculate the reference engine speed (RPM.T) for the engine and the engine speed (RPM) in contrast with the engine speed (RPM) is detected higher than the reference engine speed (RPM.T) when the fuel of the fuel injector 400 Engine electronic control device 300 for blocking injection.
도 2는 본 고안의 동작상태를 도시한 흐름도로서, 엔진의 동작상태가 공회전 중인지를 확인하는 단계와, 공회전시 엔진 냉각수온도를 감지하는 단계와, 엔진 회전수(RPM)를 감지하는 단계와, 냉각수온도에 해당하는 기준 엔진회전수(RPM.T)를 연산하고 엔진회전수(RPM)보다 기준 엔진회전수(RPM.T)보다 높은지를 확인하는 단계와, 낮은 엔진을 정상적으로 구동시키지만 높으면 스로틀밸브와 연료인젝터(400)를 구동시켜 연소실에 공급되는 공기와 연료를 차단하는 단계를 수행함을 보이고 있다.2 is a flowchart illustrating an operating state of the present invention, including checking whether an operating state of an engine is idling, detecting an engine coolant temperature during idling, and detecting an engine speed (RPM); Compute the reference engine speed (RPM.T) corresponding to the coolant temperature and check whether it is higher than the reference engine speed (RPM.T) than the engine speed (RPM), and operate the low engine normally, but if the high throttle valve And driving the fuel injector 400 to block air and fuel supplied to the combustion chamber.
이와 같이 구성된 본 고안의 작용을 설명한다.The operation of the present invention configured as described above will be described.
우선 엔진 전자제어장치(300)는 차량이 공회전하고 있는지를 확인한다(S21). 그리고 차량이 공회전하지 않는 경우에는 위에서 설명한 바와 같이 가속페달에 대응되게 스로틀밸브를 작동시켜 흡입공기량을 조절하는 한편, 냉각수온 센서(100)와, 엔진회전수 센서(200), 흡입공기량센서(500) 등에 의해 감지되는 각종 정보를 인가받아 연료분사량을 계산하고, 이에 대응되게 연료인젝터(400)를 구동시켜 엔진의 동작을 제어한다(S26).First, the engine electronic controller 300 checks whether the vehicle is idling (S21). If the vehicle does not idle, as described above, the throttle valve is operated to adjust the intake air amount corresponding to the accelerator pedal, while the coolant temperature sensor 100, the engine speed sensor 200, and the intake air amount sensor 500 are operated. The fuel injection amount is calculated by receiving various kinds of information detected by the same, and the fuel injector 400 is driven correspondingly to control the operation of the engine (S26).
하지만 차량이 공회전 중인 것으로 판정되는 경우 냉각수온 센서(100)에 의해 감지되는 냉각수 온도에 대한 정보와 엔진회전수 센서(200)에 의해 감지되는 엔진회전수에 대한 정보를 인가(S22)(23)받은 엔진 전자제어장치(300)는 엔진 냉각수 온도에 대응하는 기준 엔진회전수(RPM.T)를 구한다. 이어서, 엔진 전자제어장치(300)는 이 엔진회전수(RPM)가 기준 엔진회전수(RPM.T)보다 높은지를 확인하게 된다(S24). 그 결과 엔진회전수(RPM)가 기준 엔진회전수(RPM.T)보다 낮으면 위에서와 같이 냉각수 온도와 엔진회전수(RPM)를 감지하는 동작과 이를 기초로 기준 엔진회전수(RPM.T)를 연산하는 동작을 반복해서 수행하지만, 엔진회전수(RPM)가 기준 엔진회전수(RPM.T)보다 높은 경우 엔진 전자제어장치(300)는 미도시된 스로틀밸브의 개도량을 줄여 연소실에 공급되는 공기를 차단하는 한편, 연료인젝터(400)를 구동시켜 연소실에 공급되는 연료를 차단한다. 즉 공회전시 엔진 전자제어장치(300)는 엔진의 동작을 차단하는 것이다(S25).However, when it is determined that the vehicle is idle, information about the coolant temperature detected by the coolant temperature sensor 100 and the information about the engine speed detected by the engine speed sensor 200 are applied (S22) (23). The received engine electronic controller 300 obtains a reference engine speed (RPM.T) corresponding to the engine coolant temperature. Subsequently, the engine electronic controller 300 checks whether the engine speed RPM is higher than the reference engine speed RPM.T (S24). As a result, when the engine speed (RPM) is lower than the reference engine speed (RPM.T), the operation of detecting the coolant temperature and the engine speed (RPM) as above, and based on the reference engine speed (RPM.T) If the engine speed (RPM) is higher than the reference engine speed (RPM.T), the engine electronic controller 300 reduces the opening amount of the throttle valve (not shown) and supplies it to the combustion chamber. While blocking the air, the fuel injector 400 is driven to block the fuel supplied to the combustion chamber. That is, the engine electronic control device 300 at idle stops the operation of the engine (S25).
이상에서와 같이 본 고안은 차량이 공회전시 엔진의 온도가 과도하게 증가되면, 즉 엔진이 과도하게 회전하는 경우 스로틀밸브와 연료인젝터를 구동시켜 흡입공기와 연료분사를 차단함으로써, 불필요한 엔진의 동작을 방지하며, 더 나아가서는 유해한 배기가스의 배출을 줄일 수 있는 것이다.As described above, the present invention, when the engine temperature is excessively increased when the vehicle is idle, that is, when the engine is excessively rotated by driving the throttle valve and fuel injector to block the intake air and fuel injection, unnecessary engine operation To prevent and even reduce the emission of harmful exhaust gases.
본 고안은 상술한 특정의 바람직한 실시예에 한정되지 아니하며, 실용신안등록청구의 범위에서 청구하는 본 고안의 요지를 벗어남이 없이 당해 발명이 속하는 분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변경 실시가 가능할 것이다.The present invention is not limited to the above-described specific preferred embodiment, and any person having ordinary knowledge in the field to which the present invention belongs without departing from the gist of the present invention claimed in the utility model registration claims. Would be possible.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960057398U KR19980044264U (en) | 1996-12-26 | 1996-12-26 | Engine operation control device by engine temperature at idle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960057398U KR19980044264U (en) | 1996-12-26 | 1996-12-26 | Engine operation control device by engine temperature at idle |
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| Publication Number | Publication Date |
|---|---|
| KR19980044264U true KR19980044264U (en) | 1998-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019960057398U KR19980044264U (en) | 1996-12-26 | 1996-12-26 | Engine operation control device by engine temperature at idle |
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| KR (1) | KR19980044264U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013165056A1 (en) * | 2012-05-02 | 2013-11-07 | Ha Sung Woo | Fan |
| KR20170032006A (en) | 2015-09-14 | 2017-03-22 | 하성우 | Air flow amplifier |
-
1996
- 1996-12-26 KR KR2019960057398U patent/KR19980044264U/en not_active Application Discontinuation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013165056A1 (en) * | 2012-05-02 | 2013-11-07 | Ha Sung Woo | Fan |
| JP2015516045A (en) * | 2012-05-02 | 2015-06-04 | ウー ハ，スン | Fan |
| KR20170032006A (en) | 2015-09-14 | 2017-03-22 | 하성우 | Air flow amplifier |
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