KR19980050094A - Calculation method of EGR valve control amount of exhaust gas recirculation device - Google Patents
Calculation method of EGR valve control amount of exhaust gas recirculation device Download PDFInfo
- Publication number
- KR19980050094A KR19980050094A KR1019960068863A KR19960068863A KR19980050094A KR 19980050094 A KR19980050094 A KR 19980050094A KR 1019960068863 A KR1019960068863 A KR 1019960068863A KR 19960068863 A KR19960068863 A KR 19960068863A KR 19980050094 A KR19980050094 A KR 19980050094A
- Authority
- KR
- South Korea
- Prior art keywords
- amount
- egr valve
- calculating
- engine speed
- control amount
- Prior art date
Links
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
Abstract
본 발명은 배기가스 재순환장치의 EGR밸브 제어량 연산방법에 관한 것으로서, 더욱 상세하게는 엔진회전수, 냉각수온도(엔진온도), 공기유입량, 흡기다기관의 진공도에 의해 EGR밸브의 제어량을 연산하되, 엔진회전수의 변화량이나 부하량이 설정치 이하일때에는 EGR밸브의 제어량을 O로 연산하여 EGR밸브의 개폐동작을 제어하도록 하는 배기가스 재순환장치의 EGR밸브 제어량 연산방법에 관한 것이다. 즉 이는 엔진회전수와 냉각수온도, 흡입공기량, 흡입다기관의 진공도에 의해 EGR밸브의 제어량을 연산함에 있어서, 엔진회전수(RPM)와 스로틀밸브의 개도량(EV)을 감지하는 단계와, 이들 엔진회전수(RPM)와 개도량(EV)이 설정치(A)(B)이상인지를 확인하는 단계와, 설정치(A)(B)이상시 엔진회전수(RPM)와 개도량(EV)의 변화량(ΔRPM)(ΔEV)을 연산하는 단계와, 이 변화량(ΔRPM)(ΔEV)이 기준 변화량(C)(D)이내인지를 확인하는 단계와, 기준변화량(C)(D)이내일 때 EGR밸브(EGR.V)의 제어량을 O로 연산하는 단계를 수행함으로써, 정속서지를 개선할 수 있는 것이다.The present invention relates to a method for calculating the control amount of the EGR valve of the exhaust gas recirculation apparatus, and more specifically, the control amount of the EGR valve is calculated based on the engine speed, the coolant temperature (engine temperature), the air inflow amount, and the vacuum degree of the intake manifold. The present invention relates to a method for calculating an EGR valve control amount of an exhaust gas recirculation device for controlling the opening / closing operation of an EGR valve by calculating the control amount of the EGR valve to O when the amount of rotation or the load amount is less than the set value. In other words, in calculating the control amount of the EGR valve based on the engine speed, the coolant temperature, the intake air amount, and the vacuum degree of the intake manifold, the engine speed (RPM) and the opening amount (EV) of the throttle valve are detected. Checking whether the rotation speed (RPM) and the opening amount (EV) is greater than or equal to the set value (A) (B), and the change amount of the engine speed (RPM) and the opening amount (EV) when the set value (A) or (B) is more than Calculating (ΔRPM) (ΔEV), checking whether this change amount (ΔRPM) (ΔEV) is within the reference change amount (C) (D), and when the reference change amount (C) (D) is within the EGR valve. By performing the step of calculating the control amount of (EGR.V) to 0, the constant speed surge can be improved.
Description
본 발명은 배기가스 재순환장치의 EGR밸브 제어량 연산방법에 관한 것으로서, 더욱 상세하게는 엔진회전수, 냉각수온도(엔진온도), 공기유입량, 흡기다기관의 진공도에 의해 EGR밸브의 제어량을 연산하되, 엔진회전수의 변화량이나 부하량이 설정치 이하일때에는 EGR밸브의 제어량을 O로 연산하여 EGR밸브의 개폐동작을 제어하도록 하는 배기가스 재순환장치의 EGR밸브 제어량 연산방법에 관한 것이다.The present invention relates to a method for calculating the control amount of the EGR valve of the exhaust gas recirculation apparatus, and more specifically, the control amount of the EGR valve is calculated based on the engine speed, the coolant temperature (engine temperature), the air inflow amount, and the vacuum degree of the intake manifold. The present invention relates to a method for calculating an EGR valve control amount of an exhaust gas recirculation device for controlling the opening / closing operation of an EGR valve by calculating the control amount of the EGR valve to O when the amount of rotation or the load amount is less than the set value.
종래에는 배기관으로 배출되는 배기가스를 흡기관으로 재순환시켜 유해한 배기가스의 배출을 억제하고 있는데, 이때 배기관과 흡기관 사이에는 배기가스의 재순환동작을 제어하는 EGR(Exhaust Gas Recirculation)밸브가 접속되어 있다. 그리고 이는 엔진회전수, 냉각수온도(엔진온도), 공기유입량, 흡기다기관의 진공도에 대한 정보를 인가받은 엔진 전자제어장치에 의해 개폐된다.Conventionally, the exhaust gas discharged to the exhaust pipe is recycled to the intake pipe to suppress the emission of harmful exhaust gas, and an exhaust gas recirculation (EGR) valve is connected between the exhaust pipe and the intake pipe to control the recycling operation of the exhaust gas. . And it is opened and closed by the engine electronic control unit that receives information about the engine speed, the coolant temperature (engine temperature), the air inflow amount, the degree of vacuum of the intake manifold.
이에 본 발명은 엔진회전수, 냉각수온도(엔진온도), 공기유입량, 흡기다기관의 진공도에 의해 EGR밸브의 제어량을 연산하되, 엔진회전수의 변화량이나 부하량이 설정치 이하일때에는 EGR밸브의 제어량을 O로 연산하여 EGR밸브의 개폐동작을 제어하도록 하는 배기가스 재순환장치의 EGR밸브 제어량 연산방법을 제공하고자하는데 그 목적이 있는 것이다.Therefore, the present invention calculates the control amount of the EGR valve by the engine speed, the coolant temperature (engine temperature), the air inflow amount, the vacuum degree of the intake manifold, but when the change amount of the engine speed or the load amount is less than the set value, the control amount of the EGR valve is set to An object of the present invention is to provide a method for calculating the control amount of an EGR valve of an exhaust gas recirculation device for controlling the opening and closing operation of an EGR valve.
도 1은 본 발명의 구성을 보인 블록도,1 is a block diagram showing the configuration of the present invention,
도 2는 본 발명의 동작상태를 보인 호름도이다.2 is a diagram showing an operating state of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
100 : 엔진회전수 센서 200 : 냉각수온 센서100: engine speed sensor 200: cooling water temperature sensor
300 : 흡입공기량 감지센서 400 : 엔진 전자제어장치300: intake air volume sensor 400: electronic control engine engine
500 : 흡기다기관 진공도 감지센서 600 : TPS500: Intake manifold vacuum sensor 600: TPS
EGR.V : EGR 밸브EGR.V: EGR Valve
이하 본 발명의 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 발명에 따른 구성을 보인 블록도이고, 도 2는 본 발명의 동작상태를 보인 흐름도이다.1 is a block diagram showing a configuration according to the present invention, Figure 2 is a flow chart showing an operating state of the present invention.
본 발명은 도 1에 도시한 바와같이 엔진회전수를 감지하는 엔진회전수 센서(100)와, 냉각수의 온도를 감지하는 냉각수온 센서(200)와, 흡기관으로 흡입되는 공기 흡입량을 감지하는 흡입공기량 감지센서(300)와, 흡기다기관 내의 진공도를 감지하는 흡기다기관 진공도 감지센서(500)와, 스로틀밸브의 개도량을 감지하는 TPS(600)와, 이들 센서(100)(200)(300)(500)(600)의 출력을 인가받아 EGR밸브(EGR.V)의 제어량을 연산하고, 이 제어량으로 EGR밸브(EGR.V)를 개폐시키는 엔진전자제어장치(400)로 구성되어 있다.The present invention, as shown in Figure 1, the engine speed sensor 100 for detecting the engine speed, the coolant temperature sensor 200 for detecting the temperature of the coolant, and the suction to detect the amount of air intake sucked into the intake pipe An air volume sensor 300, an intake manifold vacuum degree sensor 500 for detecting the degree of vacuum in the intake manifold, a TPS 600 for detecting the opening amount of the throttle valve, and these sensors 100, 200, 300 The engine electronic control device 400 is configured to calculate the control amount of the EGR valve (EGR.V) by receiving the outputs of 500 and 600, and to open and close the EGR valve (EGR.V) by this control amount.
도 2는 본 발명의 동작상태를 도시한 흐름도로서, 엔진회전수와 냉각수온도, 흡입공기량, 흡입다기관의 진공도에 의해 EGR밸브의 제어량을 연산함에 있어서, 엔진회전수(RPM)와 스로틀밸브의 개도량(EV)을 감지하는 단계와, 이들 엔진회전수(RPM)와 개도량(EV)이 설정치(A)(B)이상인지를 확인하는 단계와, 설정치(A)(B)이상시 엔진회전수(RPM)와 개도량(EV)의 변화량(ΔRPM)(ΔEV)을 연산하는 단계와, 이 변화량(ΔRPM)(ΔEV)이 기준 변화량(C)(D)이내인지를 확인하는 단계와, 기준변화량(C)(D)이내일 때 EGR밸브(EGR.V)의 제어량을 O로 연산하는 단계를 수행함을 보이고 있다.Fig. 2 is a flow chart showing the operating state of the present invention. In calculating the control amount of the EGR valve by the engine speed, the coolant temperature, the intake air amount, and the vacuum degree of the intake manifold, the engine speed (RPM) and the opening of the throttle valve are shown. Detecting the amount EV, checking whether the engine speed RPM and the opening amount EV are equal to or greater than the set value A, B, and turning the engine when the set value A or B is abnormal. Calculating a change amount ΔRPM (ΔEV) between the number RPM and the opening amount EV, checking whether the change amount ΔRPM ΔEV is within the reference change amount C (D), and It is shown that the step of calculating the control amount of the EGR valve (EGR.V) to O when the change amount (C) (D) is within.
이와같이 구성된 본 발명의 작용을 설명한다.The operation of the present invention configured as described above will be described.
엔진회전수 센서(100)에 의해 감지되는 엔진회전수(RPM)와 냉각수온 센서(200)에 의해 감지되는 냉각수의 온도, 흡입공기량 감지센서(300)에 의해 감지되는 흡입공기량, 흡기다기관 진공도감지센서(500)에 의해 감지되는 진공도, TPS(600)에 의해 감지되는 스로틀밸브의 개도량(EV)에 대한 정보를 인가(S21)받은 엔진 전자제어장치(400)는 엔진회전수(RPM)이 설정치(A)보다 높은지(S22), 그리고 스로틀밸브의 개도량(EV)이 실정치(B)보다 높은지(S23)를 확인하게 된다.The engine speed (RPM) detected by the engine speed sensor 100 and the temperature of the coolant detected by the coolant temperature sensor 200, the intake air amount detected by the intake air amount sensor 300, and the intake manifold vacuum degree detection The engine electronic controller 400 receives the information on the degree of vacuum detected by the sensor 500 and the opening amount EV of the throttle valve detected by the TPS 600 (S21). It is checked whether it is higher than the set value A (S22) and whether the opening amount EV of the throttle valve is higher than the actual value B (S23).
그 결과 엔진회전수(RPM)와 스로틀밸브의 개도량(EV)이 설정치(A)(B)보다 높은 경우 엔진 전자제어장치(400)는 엔진회전수(RPM)와 스로틀밸브의 개도량(EV)의 변화량(ΔRPM)(ΔEV)을 연산한다. 즉 현재 제공받은 엔진회전수(RPM(n))와 스로틀밸브의 개도량(EV(n-1))에서 소정시간 이전에 제공받은 엔진회전수(RPM(n-1))와 스로틀밸브의 개도량(EV(n-1))를 가산하여 엔진회전수(RPM)와 스로틀밸브의 개도량(EV)의 변화량(ΔRPM)(ΔEV)을 연산(S24)하는 것이다.As a result, when the engine speed (RPM) and the opening amount (EV) of the throttle valve are higher than the set value (A) (B), the engine electronic controller 400 determines the engine speed (RPM) and the opening amount (EV) of the throttle valve. Calculate the amount of change ΔRPM (ΔEV). That is, the engine speed (RPM (n-1)) and the opening of the throttle valve provided before a predetermined time from the currently provided engine speed (RPM (n)) and the opening amount of the throttle valve (EV (n-1)). The amount of change EV (n-1) is added to calculate the change amount ΔRPM ΔEV of the engine speed RPM and the opening amount EV of the throttle valve (S24).
그리고 엔진회전수(RPM)와 스로틀밸브의 개도량(EV)의 변화량(ΔRPM)(ΔEV)이 기준 변화량(C)(D)이내인지를 확인한다(S254)(S26). 그 결과 변화량(ΔRPM)(ΔEV)이 기준 변화량(C)(D)이내인 것으로 판정되면 EGR밸브(EGR.V)의 제어량을 0로 연산하여 배기관의 배기가스를 흡기관으로 재순환시키는 EGR밸브(EGR.V)의 개폐동작을 제어하지만, 엔진회전수(RPM)와 스로틀밸브의 개도량(EV)가 설정치(A)(B)보다 작거나 혹은 변화량(ΔRPM)(ΔEV)이 기준 변화량(C)(D)이외인 경우에는 종래와 같이 엔진회전수와 냉각수온도, 흡입공기량, 흡입다기관의 진공도에 의해 EGR밸브의 제어량을 계산(S28)한다. 그리고 이 제어량에 의해 배기관의 배기가스를 흡기관으로 재순환시키는 EGR밸브(EGR.V)의 개폐동작을 제어한다.Then, it is checked whether the change amount ΔRPM (ΔEV) of the engine speed RPM and the opening amount EV of the throttle valve is within the reference change amount C (D) (S254) (S26). As a result, when it is determined that the change amount ΔRPM (ΔEV) is within the reference change amount (C) (D), the control amount of the EGR valve (EGR.V) is calculated as 0 to recirculate the exhaust gas of the exhaust pipe to the intake pipe ( EGR.V) controls the opening and closing operation, but the engine speed RPM and the opening amount EV of the throttle valve are smaller than the set value A or B, or the change amount ΔRPM ΔEV is the reference change amount C. In the case of (D), the control amount of the EGR valve is calculated based on the engine speed, the coolant temperature, the intake air amount, and the vacuum degree of the intake manifold as in the prior art (S28). The control amount controls the opening and closing operation of the EGR valve (EGR.V) that recycles the exhaust gas of the exhaust pipe to the intake pipe.
이상에서와 같이 본 발명은 엔진회전수와 냉각수온도, 흡입공기량, 흡입다기관의 진공도에 의해 EGR밸브의 제어량을 연산하되, 엔진회전수와 스로틀밸브의 개도량의 변화량이 설정이하로 변화되면 EGR밸브의 제어량을 0로 연산함으로써, 정속진동을 방지할 수 있는 것이다.As described above, the present invention calculates the control amount of the EGR valve by the engine speed and the coolant temperature, the intake air amount, the vacuum degree of the intake manifold, but if the amount of change in the engine speed and the opening amount of the throttle valve is changed below the setting, the EGR valve By calculating the control amount of 0 to 0, constant speed vibration can be prevented.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960068863A KR19980050094A (en) | 1996-12-20 | 1996-12-20 | Calculation method of EGR valve control amount of exhaust gas recirculation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960068863A KR19980050094A (en) | 1996-12-20 | 1996-12-20 | Calculation method of EGR valve control amount of exhaust gas recirculation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR19980050094A true KR19980050094A (en) | 1998-09-15 |
Family
ID=66444075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019960068863A KR19980050094A (en) | 1996-12-20 | 1996-12-20 | Calculation method of EGR valve control amount of exhaust gas recirculation device |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR19980050094A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100401843B1 (en) * | 2000-12-26 | 2003-10-17 | 현대자동차주식회사 | Method for engine idle controlling of vehicle |
| KR100764499B1 (en) * | 2006-08-24 | 2007-10-09 | 현대자동차주식회사 | Exhaust gas recirculation controlling device of vehicle |
-
1996
- 1996-12-20 KR KR1019960068863A patent/KR19980050094A/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100401843B1 (en) * | 2000-12-26 | 2003-10-17 | 현대자동차주식회사 | Method for engine idle controlling of vehicle |
| KR100764499B1 (en) * | 2006-08-24 | 2007-10-09 | 현대자동차주식회사 | Exhaust gas recirculation controlling device of vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100750029B1 (en) | Control apparatus for internal combustion engine and control method for the same | |
| US9062596B2 (en) | Wastegate valve control device for internal combustion engine and wastegate valve control method for internal combustion engine | |
| US10436158B2 (en) | Abnormality detection device for humidity sensor | |
| JP5246298B2 (en) | Intake leakage diagnosis device for internal combustion engine | |
| EP1505282A2 (en) | Control device and method for internal combustion engine | |
| US11971327B2 (en) | Leak diagnosis method and leak diagnosis device for blowby gas treatment device of internal combustion engine | |
| US6886399B2 (en) | Method for determining mass flows into the inlet manifold of an internal combustion engine | |
| JP3544197B2 (en) | Electronic control unit for internal combustion engine | |
| KR19980050094A (en) | Calculation method of EGR valve control amount of exhaust gas recirculation device | |
| JP3511639B2 (en) | Exhaust gas recirculation control device | |
| JPS6340935B2 (en) | ||
| JP3728930B2 (en) | Exhaust gas recirculation control device for internal combustion engine | |
| JPH09317568A (en) | Abnormality detecting device for diesel engine | |
| JPH0689682B2 (en) | Air-fuel ratio controller | |
| JPH06288303A (en) | Self-diagnosis device for exhaust gas circulating device of internal combustion engine | |
| KR100205890B1 (en) | Engine overheating prevention device and control method using intake air temperature | |
| JP2016211532A (en) | Control device for internal combustion engine | |
| JP2008190410A (en) | Self-diagnosis device for variable valve timing control device | |
| JP2023115551A (en) | Engine control device | |
| JP3632446B2 (en) | EGR control device for internal combustion engine | |
| KR101252777B1 (en) | Method for protecting cvvt engine stall | |
| JPH02201056A (en) | Fuel injection control device of internal combustion engine | |
| JPH1026048A (en) | Idle determining device for engine | |
| JP3137039B2 (en) | Step motor control device | |
| JP2836649B2 (en) | Exhaust gas recirculation control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E601 | Decision to refuse application |