JP5043899B2 - 内燃機関のegr流量制御装置 - Google Patents
内燃機関のegr流量制御装置 Download PDFInfo
- Publication number
- JP5043899B2 JP5043899B2 JP2009174693A JP2009174693A JP5043899B2 JP 5043899 B2 JP5043899 B2 JP 5043899B2 JP 2009174693 A JP2009174693 A JP 2009174693A JP 2009174693 A JP2009174693 A JP 2009174693A JP 5043899 B2 JP5043899 B2 JP 5043899B2
- Authority
- JP
- Japan
- Prior art keywords
- egr
- flow rate
- gas flow
- valve
- internal combustion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0047—Controlling exhaust gas recirculation [EGR]
- F02D41/0065—Specific aspects of external EGR control
- F02D41/0072—Estimating, calculating or determining the EGR rate, amount or flow
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/02—EGR systems specially adapted for supercharged engines
- F02M26/04—EGR systems specially adapted for supercharged engines with a single turbocharger
- F02M26/05—High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/40—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with timing means in the recirculation passage, e.g. cyclically operating valves or regenerators; with arrangements involving pressure pulsations
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/45—Sensors specially adapted for EGR systems
- F02M26/46—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition
- F02M26/47—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition the characteristics being temperatures, pressures or flow rates
-
- 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
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0047—Controlling exhaust gas recirculation [EGR]
- F02D41/0065—Specific aspects of external EGR control
- F02D41/0072—Estimating, calculating or determining the EGR rate, amount or flow
- F02D2041/0075—Estimating, calculating or determining the EGR rate, amount or flow by using flow sensors
-
- 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
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D2041/141—Introducing closed-loop corrections characterised by the control or regulation method using a feed-forward control element
-
- 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
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D2041/1413—Controller structures or design
- F02D2041/1432—Controller structures or design the system including a filter, e.g. a low pass or high pass filter
-
- 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
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
- F02D41/28—Interface circuits
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Analytical Chemistry (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Description
本発明の内燃機関のEGR流量制御装置をディーゼルエンジンに適用し、EGR流路を流れるEGRガス流量を好適に制御することができるいくつか実施形態について、以下に説明する。ここで、本実施形態に係る内燃機関の制御装置は、ディーゼルエンジンに限定されず、EGRガス流量を制御するガソリンエンジンにも適用可能である。
第一実施形態は、EGRガスの脈動周波数の変動によるEGR流量センサの誤差を、エンジンを表す第一及び第二の運転状態パラメータにより補正するものであるが、本発明の第二実施形態は、EGR流量センサの計測信号(計測したEGRガス流量)の時間変化により、EGRガス(EGRガス流量)の脈動周波数(又は時間変化量)に応じてEGR流量センサのEGRガス流量を補正するものである。本実施形態に係るEGR制御装置を含むエンジンシステムの構成は第一実施形態と同様である。
図18は、第三実施形態におけるEGR流量センサの構成図である。EGR流量センサの構成としては、図12のようなEGR通路内に発熱抵抗体を配置するもの以外に、図18に示すようにEGRガスの脈動による流量計測誤差を低減するためEGR通路内にガスの脈動を抑制するバイパス通路を設け、バイパス通路内に発熱抵抗体を配置することで、EGRガスの脈動による流量計測誤差を低減するものがある。このような構成では後述するバイパス通路の慣性効果により計測誤差特性が変化する。本発明の第三の実施形態はEGRガスの脈動周波数の変動による流速分布変化の影響と上記バイパス通路の慣性効果の影響を考慮し、EGR流量センサの計測流量を補正するものである。
本発明のEGR制御装置を適用するエンジンシステムの構成は第一実施形態と同様である。本実施形態のEGR制御装置の動作フローは、第一実施形態(図7)と同様である。図7ステップ130のEGRガス流量の計算方法に特徴を有する。本実施形態におけるEGRガス流量の計算方法について図20により説明する。
9 燃料噴射弁
10 内燃機関のEGR流量制御装置
16 EGR通路
17 EGR弁
18 EGR流量センサ
45 EGR流量補正手段(ガス流量補正手段)
52a 発熱抵抗体
60 バイパス通路
Claims (2)
- 排気管と吸気管とを連通するEGR流路と、前記EGR流路に取り付けられて、EGRガス流量を調節するガス流量調節弁と、前記EGR流路の前記ガス流量調節弁に対して吸気管側に取り付けられ、前記EGR流路を流れる前記EGRガス流量を計測するガス流量計測装置と、を備えた内燃機関のEGR流量制御装置であって、
該EGR流量制御装置は、前記内燃機関の前記吸気管または前記排気管の圧力変動に関連する第一の運転状態パラメータと、前記EGR流路の流路抵抗に関連する第二の運転状態パラメータと、に基づいて、前記EGRガス流量を補正するガス流量補正手段を備え、
前記ガス流量補正手段は、前記第一の運転状態パラメータとして、内燃機関の回転数、内燃機関の負荷、目標トルク、燃料噴射量、吸気管圧力、スロットル弁開度、及び排気管圧力のうち少なくとも1つを用い、前記第二の運転状態パラメータとして、前記ガス流量調節弁の開度、前記EGRガス流量、内燃機関の回転数、内燃機関の負荷、及び目標トルクのうち少なくとも1つを用いて、前記EGRガス流量を補正するものであり、
前記ガス流量補正手段は、前記EGRガス流量の脈動周波数が高くなるに従って、前記EGRガス流量が増加するようにEGRガス流量の補正量を増加させることを特徴とする内燃機関のEGR流量制御装置。 - 前記ガス流量補正手段は、前記第一の運転状態パラメータとして、内燃機関の負荷、燃料噴射量、及び目標トルクのうちのいずれかと、内燃機関の回転数と、を用い、前記第二の運転状態パラメータとして、前記ガス流量調節弁の開度を用いて、前記EGRガス流量を補正することを特徴とする請求項1記載の内燃機関のEGR流量制御装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009174693A JP5043899B2 (ja) | 2009-07-27 | 2009-07-27 | 内燃機関のegr流量制御装置 |
US12/829,080 US8387593B2 (en) | 2009-07-27 | 2010-07-01 | EGR flow rate control apparatus of internal combustion engine |
EP10170121A EP2292917B1 (en) | 2009-07-27 | 2010-07-20 | Egr flow rate control apparatus of internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009174693A JP5043899B2 (ja) | 2009-07-27 | 2009-07-27 | 内燃機関のegr流量制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011027042A JP2011027042A (ja) | 2011-02-10 |
JP5043899B2 true JP5043899B2 (ja) | 2012-10-10 |
Family
ID=42931913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009174693A Expired - Fee Related JP5043899B2 (ja) | 2009-07-27 | 2009-07-27 | 内燃機関のegr流量制御装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8387593B2 (ja) |
EP (1) | EP2292917B1 (ja) |
JP (1) | JP5043899B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10125704B2 (en) | 2016-08-24 | 2018-11-13 | Hyundai Motor Company | Engine system having EGR apparatus |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5447334B2 (ja) * | 2010-10-25 | 2014-03-19 | トヨタ自動車株式会社 | 排気還流装置の異常検出装置 |
US8944034B2 (en) * | 2011-02-11 | 2015-02-03 | Southwest Research Institute | Dedicated EGR control strategy for improved EGR distribution and engine performance |
US9157390B2 (en) * | 2011-09-21 | 2015-10-13 | GM Global Technology Operations LLC | Selective exhaust gas recirculation diagnostic systems and methods |
US8938961B2 (en) * | 2011-12-30 | 2015-01-27 | Caterpillar Inc. | EGR flow sensor for an engine |
EP2623753A3 (en) * | 2012-01-31 | 2015-09-16 | International Engine Intellectual Property Company, LLC | NOx control |
EP2623755A3 (en) * | 2012-01-31 | 2017-04-19 | International Engine Intellectual Property Company, LLC | Oxygen concentration setpoint modification |
FR2988139B1 (fr) * | 2012-03-13 | 2015-08-21 | Peugeot Citroen Automobiles Sa | Moteur thermique avec recirculation forcee des gaz d'echappement |
WO2016022142A1 (en) * | 2014-08-08 | 2016-02-11 | Cummins Inc. | Exhaust gas recirculation flow measurement |
EP3192101A4 (en) * | 2014-09-09 | 2018-05-23 | Intel Corporation | Multi-gate high electron mobility transistors and methods of fabrication |
US10233809B2 (en) | 2014-09-16 | 2019-03-19 | Southwest Research Institute | Apparatus and methods for exhaust gas recirculation for an internal combustion engine powered by a hydrocarbon fuel |
US10125726B2 (en) | 2015-02-25 | 2018-11-13 | Southwest Research Institute | Apparatus and methods for exhaust gas recirculation for an internal combustion engine utilizing at least two hydrocarbon fuels |
US9797349B2 (en) | 2015-05-21 | 2017-10-24 | Southwest Research Institute | Combined steam reformation reactions and water gas shift reactions for on-board hydrogen production in an internal combustion engine |
US9657692B2 (en) | 2015-09-11 | 2017-05-23 | Southwest Research Institute | Internal combustion engine utilizing two independent flow paths to a dedicated exhaust gas recirculation cylinder |
US9874193B2 (en) | 2016-06-16 | 2018-01-23 | Southwest Research Institute | Dedicated exhaust gas recirculation engine fueling control |
JP6707038B2 (ja) * | 2017-01-23 | 2020-06-10 | 日立オートモティブシステムズ株式会社 | 内燃機関の制御装置 |
US10495035B2 (en) | 2017-02-07 | 2019-12-03 | Southwest Research Institute | Dedicated exhaust gas recirculation configuration for reduced EGR and fresh air backflow |
JP6866783B2 (ja) * | 2017-06-22 | 2021-04-28 | いすゞ自動車株式会社 | 排ガス再循環装置 |
CN115288865B (zh) * | 2022-08-10 | 2024-01-16 | 潍柴动力股份有限公司 | 一种egr流量的获取方法及装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003155957A (ja) * | 2001-09-04 | 2003-05-30 | Mitsubishi Motors Corp | Egr制御装置及びegr制御方法 |
JP4186899B2 (ja) | 2004-09-30 | 2008-11-26 | 株式会社日立製作所 | 排気還流制御装置 |
JP2006214275A (ja) | 2005-02-01 | 2006-08-17 | Hitachi Ltd | 内燃機関の排気還流装置 |
JP2006316708A (ja) * | 2005-05-13 | 2006-11-24 | Hitachi Ltd | エンジンの制御装置 |
JP2008069690A (ja) * | 2006-09-13 | 2008-03-27 | Hitachi Ltd | 排ガス還流制御装置 |
JP4713437B2 (ja) | 2006-10-18 | 2011-06-29 | 日立オートモティブシステムズ株式会社 | 内燃機関の排気ガス再循環装置 |
JP2008180185A (ja) | 2007-01-26 | 2008-08-07 | Hitachi Ltd | エンジンの排気還流制御装置 |
-
2009
- 2009-07-27 JP JP2009174693A patent/JP5043899B2/ja not_active Expired - Fee Related
-
2010
- 2010-07-01 US US12/829,080 patent/US8387593B2/en active Active
- 2010-07-20 EP EP10170121A patent/EP2292917B1/en not_active Not-in-force
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10125704B2 (en) | 2016-08-24 | 2018-11-13 | Hyundai Motor Company | Engine system having EGR apparatus |
Also Published As
Publication number | Publication date |
---|---|
EP2292917B1 (en) | 2012-10-24 |
JP2011027042A (ja) | 2011-02-10 |
EP2292917A3 (en) | 2011-03-30 |
EP2292917A2 (en) | 2011-03-09 |
US8387593B2 (en) | 2013-03-05 |
US20110017179A1 (en) | 2011-01-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5043899B2 (ja) | 内燃機関のegr流量制御装置 | |
JP4049158B2 (ja) | 内燃機関の燃料噴射制御装置 | |
JP4622719B2 (ja) | Pm堆積量推定装置 | |
JP6146192B2 (ja) | 診断装置 | |
US20120271529A1 (en) | Internal combustion engine control apparatus | |
CN108626038B (zh) | 内燃机的控制装置 | |
WO2020066548A1 (ja) | 内燃機関制御装置 | |
JP5376051B2 (ja) | Egrシステムの異常検出装置及び異常検出方法 | |
JP5331613B2 (ja) | 内燃機関の筒内ガス量推定装置 | |
WO2014080523A1 (ja) | 内燃機関の制御装置 | |
JP6323140B2 (ja) | Egr制御装置 | |
US11073100B2 (en) | Cylinder based low pressure cooled exhaust gas recirculation transient measurement methodology | |
JP2010106734A (ja) | 内燃機関のegr制御方法及び内燃機関 | |
JP5076879B2 (ja) | 内燃機関の燃料噴射制御システム | |
JP5111534B2 (ja) | 内燃機関のegr制御装置 | |
JP2001073789A (ja) | 内燃機関の過給圧制御装置 | |
JP5861291B2 (ja) | 空気流量センサ校正装置 | |
JP5608614B2 (ja) | エンジンのegr流量検出装置 | |
JP2020020295A (ja) | 内燃機関の制御装置 | |
JP5004036B2 (ja) | 内燃機関の排気浄化装置 | |
KR20210033539A (ko) | 배기 재순환 장치의 동작 제어 방법 및 배기 재순환 장치 | |
JP7158339B2 (ja) | モデルλ値補償方法及び車両動作制御装置 | |
JP2010270634A (ja) | 圧縮着火内燃機関の制御装置 | |
WO2024116331A1 (ja) | 内燃機関の制御装置および制御方法 | |
JP2014152689A (ja) | ターボ過給機付き内燃機関の制御装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20110602 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20111013 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20111018 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20111215 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20120626 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20120712 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5043899 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20150720 Year of fee payment: 3 |
|
LAPS | Cancellation because of no payment of annual fees |