KR20170096620A - 내연기관과 그 작동방법 - Google Patents
내연기관과 그 작동방법 Download PDFInfo
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- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
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- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
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- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
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- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
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Abstract
Description
도 2a와 도 2b는 제1 실시형태에서 시간변수의 측정을 보인 두 개의 다이아그램.
도 3은 제2 실시형태에서 시간변수의 측정을 보인 다이아그램.
도 4는 본 발명에 따른 내연기관, 또는 본 발명에 따른 방법의 폐쇄루우프형 제어개념을 설명하는 설명도.
Claims (18)
- - 연소실(2)로서, 상기 연소실(2)에는 공기(L), 연소가스(B) 및 안정화가스(S)의 혼합물이 공급되고, 연소가스(B)는 가변의(variable) 발열량을 갖는, 상기 연소실(2),
- 연소중의 상기 연소실(2) 내의 공기(L), 연소가스(B) 및 안정화가스(S)의 혼합물의 압력을 측정하기 위한 압력 센서(3, 14), 및
- 상기 압력 센서(3)에 연결되는 개방루우프형 또는 폐쇄루우프형 제어장치(4)
를 구비하는 내연기관에 있어서,
상기 제어장치는, 연소가스(B)의 발열량의 변동을 보상하도록, 상기 혼합물에 더해지고 연소전 또는 연소중에 상기 연소실에 공급되는 안정화가스의 양을 공기, 연소가스(B) 및 안정화 가스(S)의 혼합물의 측정된 압력에 기초하여 조절가능하게 제어하도록 구성되는 것을 특징으로 하는 내연기관. - 제1항에 있어서, 개방루우프형 또는 폐쇄루우프형 제어장치(4)에 연결된 람다 프로우브(14) 및/또는 산소센서가 엔진변수로서 람다값(λ)을 측정하기 위하여 제공되는 것을 특징으로 하는 내연기관.
- 제1항에 있어서, 상기 연소실의 연소 상태를 감지하도록 구성된 이온전류 센서를 더 포함하고, 상기 이온전류 센서는 상기 제어장치에 연결되는 것을 특징으로 하는 내연기관.
- 제1항에 있어서, 상기 연소실은 복수의 압력실의 제1 압력실이고, 상기 압력 센서는 복수의 압력 센서의 제1 압력 센서이고, 상기 복수의 압력실 각각은 상기 복수의 압력 센서의 하나의 압력 센서 각각에 정확히 연결되는 것을 특징으로 하는 내연기관.
- 제1항에 있어서, 상기 개방루우프형 또는 폐쇄루우프형 제어장치(4)가, 상기 압력 센서의 측정값으로부터 상기 연소실(2)내에 존재하는 연소가스의 연소속도의 특징인 시간변수를 계산하고, 시간변수에 따른 개방루우프형 또는 폐쇄루우프형 제어에 의하여 상기 연소실(2)에 공급된 안정화가스(S)의 양을 계산된 시간변수에 기초하여 제어하도록 설계되는 것을 특징으로 하는 내연기관.
- 제1항에 있어서, 제1 혼합장치(7)가 연소가스(B)와 공기(L)의 예비혼합가스를 생성하도록 제공되고, 제1 혼합장치(7)에 연결된 제2 혼합장치(8)가 예비혼합가스와 안정화가스(S)로 조성된 메인 혼합가스를 생성하도록 제공되며, 메인 혼합가스가 적어도 하나의 연소실(2)로 공급될 수 있는 것을 특징으로 하는 내연기관.
- 제1항 내지 제6항 중 어느 한 항에 있어서, 개방루우프형 또는 폐쇄루우프형 제어장치(4)에 연결된 조절밸브(10)가 안정화가스(S)의 공급을 위하여 안정화가스 공급라인(9)에 제공되는 것을 특징으로 하는 내연기관.
- 내연기관의 작동방법에 있어서,
- 공기(L), 연소가스(B) 및 안정화가스(S)의 혼합물을 연소실(2)에 공급하고, 연소가스(B)는 가변의 발열량을 가지며,
- 적어도 하나의 연소실(2)에 존재하는 가스가 점화되며,
- 제어장치에 연결된 압력 센서(3, 14)에 의해 상기 내연기관 내의 공기, 연소가스 및 안정화가스의 혼합물의 압력을 측정하고, 상기 제어장치는 개방루우프형 제어장치 또는 폐쇄루우프형 제어장치 중 하나이며,
- 연소가스(B)의 발열량의 변동을 보상하도록, 상기 혼합물에 더해지고 연소전 또는 연소중에 상기 연소실(2)에 공급되는 안정화가스(S)의 양을 공기, 연소가스(B) 및 안정화 가스(S)의 혼합물의 측정된 압력에 기초하여 상기 개방루우프 또는 폐쇄루우프 제어 장치를 이용하여 조절가능하게 제어하는 것을 특징으로 하는 내연기관의 작동방법. - 제8항에 있어서, 람다 프로우브 및/또는 산소센서가 센서로서 사용되고, 람다 프로우브(14)에 의하여 측정된 그리고/또는 산소센서의 측정값에 의하여 결정된 람다값(λ)이 엔진변수로서 사용됨을 특징으로 하는 내연기관의 작동방법.
- 제9항에 있어서, 람다값이 한계값인 최소 람다값(λmin) 이하로 떨어지는 경우 공급되는 안정화가스(S)의 양이 증가되도록 조절가능하게 제어하는 것을 특징으로 하는 내연기관의 작동방법.
- 제10항에 있어서, 안정화가스의 양을 조절가능하게 제어하는 것은, 연소실(2)내에 존재하는 연소가스(B), 안정화가스(S) 및 공기(L)의 혼합물의 연소속도의 특징인 시간변수를 측정된 압력(p)으로부터 계산하는 것을 포함하고, 적어도 하나의 연소실(2)에 공급되는 안정화가스(S)의 양이 시간변수에 따라서 개방루우프형 또는 폐쇄루우프형 제어에 의하여 제어됨을 특징으로 하는 내연기관의 작동방법.
- 제11항에 있어서, 안정화가스(S)와 연소가스(B)의 양을 조절가능하게 제어하는 것은 동일한 인수로 시간변수에 따라 변경되는 것을 특징으로 하는 내연기관의 작동방법.
- 제11항에 있어서, 복수의 연소실(2)을 갖는 내연기관(1)을 이용하는 내연기관의 작동방법으로서, 안정화가스의 양을 조절가능하게 제어하는 것은, 각 시간변수(AI50, MFB50)를 각 연소실(2)에 대하여 계산하는 것을 포함하고, 시간변수가 각 시간변수(AI50, MFB50)의 최대값, 최소값, 평균값 또는 중앙값으로서 계산되는 것을 특징으로 하는 내연기관의 작동방법.
- 제11항에 있어서, 안정화가스의 양을 조절가능하게 제어하는 것은, 연소중에, 상기 연소실(2)내의 압력진행과정(DV)을 상기 압력 센서에 의하여 측정하고, 측정된 압력진행과정을 이용하여 시간변수를 계산하는 것을 포함하는 것을 특징으로 하는 내연기관의 작동방법.
- 제14항에 있어서, 안정화가스의 양을 조절가능하게 제어하는 것은, 압력진행과정(DV)과 모니터된 압력진행과정(SV)의 차이로부터 가열진행과정(HV)을 계산하고, 가열진행과정(HV)의 적분으로 누적가열진행과정(kHV)을 계산하며, 누적가열진행과정(kHV)을 이용하여 시간변수 및/또는 각 시간변수(AI50, MFB50)를 계산하는 것을 포함하는 것을 특징으로 하는 내연기관의 작동방법.
- 제15항에 있어서, 누적가열진행과정(kHV)이 그 최대값의 정의된 비율에 도달하는 시간의 순간은 시간변수 또는 각 시간변수(AI50, MFB50)로서 사용되고, 이 비율이 5%~20% 사이, 또는 30%~80% 사이, 바람직하게는 40%~65% 사이, 특히 바람직하게는 50% 인 것을 특징으로 하는 내연기관의 작동방법.
- 제14항 내지 제16항 중 어느 한 항에 있어서, 시간변수 및/또는 각 시간변수(AI50, MFB50)가 크랭크샤프트의 회전 방향에서 상사점으로부터 측정된 대응하는 크랭크샤프트의 크랭킹의 각위치로서 표현되는 피스턴 위치에 의하여 표시되며, 바람직하게는 누적가열진행과정(kHV)의 50% 비율을 사용하는 내연기관의 작동방법으로서, 적어도 하나의 연소실(2)에 공급되는 안정화가스(S)의 양이 개방루우프형 또는 폐쇄루우프형 제어에 의하여 50% 질량연소율의 기준값(AI50_Ref)으로 제어됨을 특징으로 하는 내연기관의 작동방법.
- 제14항에 있어서, 시간변수 및/또는 각 시간변수(AI50, MFB50)의 계산을 위하여, 압력진행과정(DV)에 배치된 제1 포인트(P1)와, 압력진행과정(DV)에 배치된 제2 포인트(P2)가 선택되고, 압력진행과정(DV)의 절대값 및/또는 압력진행과정(DV)의 경사도가 제1 포인트(P1) 및/또는 제2 포인트(P2)의 선택을 위한 기준으로서 사용되며, 제1 포인트(P1)와 제2 포인트(P2)의 시간좌표 사이의 값이 시간변수 및/또는 각 시간변수(AI50, MFB50)를 위하여 결정되고, 바람직하게는 50%의 분할이 사용되는 것을 특징으로 하는 내연기관의 작동방법.
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| ATA345/2014A AT515769A3 (de) | 2014-05-09 | 2014-05-09 | Verbrennungsmotor und Verfahren zum Betrieb desselben |
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| EP (1) | EP2990631B1 (ko) |
| JP (1) | JP6397367B2 (ko) |
| KR (2) | KR20150128603A (ko) |
| CN (2) | CN105114196A (ko) |
| AT (1) | AT515769A3 (ko) |
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| US11952935B2 (en) * | 2011-12-16 | 2024-04-09 | Transportation Ip Holdings, Llc | Systems and method for controlling auto-ignition |
| US11719152B2 (en) * | 2011-12-16 | 2023-08-08 | Transportation Ip Holdings, Llc | Multivariable dynamic control system of a multi-fuel engine |
| DE102015216105A1 (de) * | 2015-08-24 | 2017-03-02 | Ford Global Technologies, Llc | Verfahren zur Regelung des Ladedrucks einer aufgeladenen Brennkraftmaschine mit mindestens zwei Verdichtern und Brennkraftmaschine zur Durchführung eines derartigen Verfahrens |
| CN106677909B (zh) * | 2016-12-08 | 2023-03-24 | 湖北鹰牌动力科技有限公司 | 一种燃气发动机的电子卸荷装置 |
| US10330032B2 (en) * | 2017-03-20 | 2019-06-25 | Caterpillar Inc. | Engine and control strategy for injecting augmenting fuel to stream of gaseous fuel and air |
| DK3680477T3 (da) * | 2017-09-06 | 2025-12-22 | Ihi Corp | Motorstyringssystem |
| CN116255280A (zh) * | 2022-12-26 | 2023-06-13 | 哈尔滨汽轮机厂有限责任公司 | 一种三阀联动式变组分气体发动机供给系统及其供给方法 |
| JP2025173153A (ja) * | 2024-05-14 | 2025-11-27 | ヤンマーホールディングス株式会社 | エンジン装置 |
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| JP2005030302A (ja) * | 2003-07-14 | 2005-02-03 | Tokyo Gas Co Ltd | ガスエンジン及びその制御方法 |
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| JP2005030302A (ja) * | 2003-07-14 | 2005-02-03 | Tokyo Gas Co Ltd | ガスエンジン及びその制御方法 |
| KR101352131B1 (ko) * | 2006-03-31 | 2014-01-14 | 더 유니버시티 오브 브리티시 콜롬비아 | 수소 및 메탄을 내연엔진의 연료로 사용하는 방법 및 장치 |
| JP2010007618A (ja) * | 2008-06-30 | 2010-01-14 | Toyota Motor Corp | 内燃機関の制御装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015214976A (ja) | 2015-12-03 |
| CA2891084A1 (en) | 2015-11-09 |
| AT515769A3 (de) | 2018-01-15 |
| EP2990631B1 (de) | 2024-12-18 |
| JP6397367B2 (ja) | 2018-09-26 |
| EP2990631A1 (de) | 2016-03-02 |
| AU2015202272A1 (en) | 2015-11-26 |
| EP2990631C0 (de) | 2024-12-18 |
| AT515769A2 (de) | 2015-11-15 |
| US20150322896A1 (en) | 2015-11-12 |
| CN105114196A (zh) | 2015-12-02 |
| CN111502837A (zh) | 2020-08-07 |
| KR101929673B1 (ko) | 2019-03-14 |
| AU2015202272B2 (en) | 2016-07-14 |
| CA2891084C (en) | 2017-07-11 |
| KR20150128603A (ko) | 2015-11-18 |
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