EP0264332B1 - Procédé de correction de la richesse d'un mélange air-carburant admis dans un moteur à combustion interne, à injection électronique - Google Patents
Procédé de correction de la richesse d'un mélange air-carburant admis dans un moteur à combustion interne, à injection électronique Download PDFInfo
- Publication number
- EP0264332B1 EP0264332B1 EP87402272A EP87402272A EP0264332B1 EP 0264332 B1 EP0264332 B1 EP 0264332B1 EP 87402272 A EP87402272 A EP 87402272A EP 87402272 A EP87402272 A EP 87402272A EP 0264332 B1 EP0264332 B1 EP 0264332B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- engine
- temperature
- richness
- coefficient
- 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 - Lifetime
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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/068—Introducing corrections for particular operating conditions for engine starting or warming up for warming-up
-
- 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
-
- 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
- F02D41/30—Controlling fuel injection
- F02D41/32—Controlling fuel injection of the low pressure type
-
- 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
- F02D2200/04—Engine intake system parameters
- F02D2200/0414—Air temperature
Definitions
- the invention relates to a method for correcting the richness of an air-fuel mixture admitted into an internal combustion engine, with electronic injection of the pressure-speed type, in order to keep the richness constant as a function of the air temperature. entering the cylinders and whatever the speed and pressure in the intake manifold.
- the object of the invention is to correct the richness of the air-fuel mixture at the intake so that it is constant as a function of the actual temperature of the air entering the cylinders.
- the correction of the richness of the air-petrol mixture uses the measurement of this temperature by a probe placed upstream of the throttle body.
- this correction was unsuitable for certain engine operating points, especially when the air underwent heating between the butterfly and the valves.
- the technical problem comes from the fact that the air temperature measuring probe does not deliver the actual temperature of the air entering the cylinders.
- the air is heated by the walls of the intake manifold.
- a tehrmic exchange takes place between the air circulating in the tubing and the walls and, theoretically, it can be said that the temperature of the air entering the intake manifold undergoes an increase as a function of the temperature of the walls. , the air pressure in the manifold and the engine speed according to which the quantity of air admitted depends.
- thermocouples placed on the engine intake circuit placed as close to the valves to check the accuracy of the temperature formula thus calculated.
- the outside air temperature T is given by a probe 1 upstream of the butterfly valve 2.
- a thermocouple 5 makes it possible to verify that the temperature of the wall of the intake circuit is very close to that of the water T water given by a water temperature probe. It is verified in particular that for high speeds and pressures, the temperature of the air actually entering the cylinders is very close to that of the air outside the vehicle. This is explained by the fact that the admitted air does not have time to warm up along the walls, its flow being large. On the other hand, for engine idling, the actual temperature of the air entering through the valves is close to the temperature of the engine cooling water.
- This richness correction method has the advantage of being easily applied by the injection computer, since it is a linear calculation from information present in the injection computer (temperatures of air and water, engine speed, pressure).
- loop coefficient a ci remains constant when the outside air temperature varies, which justifies the use of an air temperature constant at idle on certain engines, and that this coefficient a ci however changes with the engine water temperature.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8614252 | 1986-10-14 | ||
FR8614252A FR2605050B1 (fr) | 1986-10-14 | 1986-10-14 | Procede de correction de la richesse d'un melange air-carburant admis dans un moteur a combustion interne, a injection electronique. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0264332A1 EP0264332A1 (fr) | 1988-04-20 |
EP0264332B1 true EP0264332B1 (fr) | 1990-12-19 |
Family
ID=9339824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87402272A Expired - Lifetime EP0264332B1 (fr) | 1986-10-14 | 1987-10-13 | Procédé de correction de la richesse d'un mélange air-carburant admis dans un moteur à combustion interne, à injection électronique |
Country Status (6)
Country | Link |
---|---|
US (1) | US4815435A (es) |
EP (1) | EP0264332B1 (es) |
CA (1) | CA1290838C (es) |
DE (1) | DE3766790D1 (es) |
ES (1) | ES2019396B3 (es) |
FR (1) | FR2605050B1 (es) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19817788C2 (de) * | 1997-04-22 | 2003-02-20 | Unisia Jecs Corp | Vorrichtung und Verfahren zum Steuern der Brennstoffeinspritzung bei einem Verbrennungskraftmotor |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4974563A (en) * | 1988-05-23 | 1990-12-04 | Toyota Jidosha Kabushiki Kaisha | Apparatus for estimating intake air amount |
JP2707674B2 (ja) * | 1989-01-20 | 1998-02-04 | 株式会社デンソー | 空燃比制御方法 |
JPH04506692A (ja) * | 1989-07-14 | 1992-11-19 | シーメンス アクチェンゲゼルシャフト | 内燃機関の制御方法 |
US5113832A (en) * | 1991-05-23 | 1992-05-19 | Pacer Industries, Inc. | Method for air density compensation of internal combustion engines |
DE19636451B4 (de) * | 1996-09-07 | 2010-06-10 | Robert Bosch Gmbh | Einrichtung zum Steuern der einer Brennkraftmaschine zuzuführenden Kraftstoffmenge |
DE19739901B4 (de) | 1997-09-11 | 2008-04-17 | Robert Bosch Gmbh | Verfahren und Einrichtung zur Steuerung einer Brennkraftmaschine abhängig von Betriebskenngrößen |
CN111650171B (zh) * | 2020-07-03 | 2023-08-18 | 中国科学院工程热物理研究所 | 一种燃油喷嘴高温高压燃油浓度场定量测量及校正方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE567344A (es) * | 1957-05-04 | |||
US3824967A (en) * | 1972-10-30 | 1974-07-23 | Gen Motors Corp | Electronic fuel injection system |
JPS5888436A (ja) * | 1981-11-19 | 1983-05-26 | Honda Motor Co Ltd | 吸気温度による補正機能を有する内燃エンジンの空燃比補正装置 |
JPS5888435A (ja) * | 1981-11-19 | 1983-05-26 | Honda Motor Co Ltd | 吸気温度による補正機能を有する内燃エンジンの空燃比補正装置 |
US4499879A (en) * | 1983-04-28 | 1985-02-19 | General Motors Corporation | Fuel supply system for an internal combustion engine |
US4594986A (en) * | 1984-01-20 | 1986-06-17 | Mazda Motor Corporation | Fuel supply arrangement for internal combustion engine |
JPH0670394B2 (ja) * | 1985-08-20 | 1994-09-07 | 三菱電機株式会社 | エンジンの燃料制御装置 |
-
1986
- 1986-10-14 FR FR8614252A patent/FR2605050B1/fr not_active Expired - Fee Related
-
1987
- 1987-10-13 ES ES87402272T patent/ES2019396B3/es not_active Expired - Lifetime
- 1987-10-13 EP EP87402272A patent/EP0264332B1/fr not_active Expired - Lifetime
- 1987-10-13 DE DE8787402272T patent/DE3766790D1/de not_active Expired - Fee Related
- 1987-10-14 US US07/107,998 patent/US4815435A/en not_active Expired - Fee Related
- 1987-10-14 CA CA000549251A patent/CA1290838C/fr not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
XXI FISITA Congress, Belgrade, 2.-6. June, 1986, page 1.111-1.112 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19817788C2 (de) * | 1997-04-22 | 2003-02-20 | Unisia Jecs Corp | Vorrichtung und Verfahren zum Steuern der Brennstoffeinspritzung bei einem Verbrennungskraftmotor |
Also Published As
Publication number | Publication date |
---|---|
EP0264332A1 (fr) | 1988-04-20 |
ES2019396B3 (es) | 1991-06-16 |
CA1290838C (fr) | 1991-10-15 |
DE3766790D1 (de) | 1991-01-31 |
FR2605050B1 (fr) | 1991-01-11 |
FR2605050A1 (fr) | 1988-04-15 |
US4815435A (en) | 1989-03-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0478120A2 (en) | Method and apparatus for inferring barometric pressure surrounding an internal combustion engine | |
EP0476811A2 (en) | Method and apparatus for controlling an internal combustion engine | |
EP0264332B1 (fr) | Procédé de correction de la richesse d'un mélange air-carburant admis dans un moteur à combustion interne, à injection électronique | |
JPH09170471A (ja) | 多気筒エンジンの空燃比制御方法 | |
US5631412A (en) | Apparatus and method for estimating atmospheric pressure in an internal combustion engine | |
US6644104B2 (en) | Intake air-flow rate detecting apparatus and detecting method of internal combustion engine | |
FR2553829A1 (fr) | Procede de reglage d'une quantite impliquee dans le fonctionnement d'un moteur a combustion interne notamment de la quantite de carburant | |
JP2004218638A (ja) | 内燃機関の運転方法 | |
JP3964347B2 (ja) | 内燃機関の吸気装置 | |
EP4048884A1 (fr) | Procédé de régulation d'une pression dans un système d'injection d'eau pour un moteur à combustion interne | |
EP2256322B1 (fr) | Influence de la régulation des nox sur le contrôle du bruit moteur dans un moteur à combustion interne | |
JPS58214632A (ja) | 内燃機関の電子制御燃料噴射方法 | |
FR2724417A1 (fr) | Procede de commande d'un moteur a combustion interne a injection directe | |
JP2019183694A (ja) | セタン価推定装置 | |
FR2857055A1 (fr) | Procede de gestion d'un moteur a combustion interne | |
EP2807353B1 (fr) | Procédé de protection thermique des composants de la ligne d'échappement d'un moteur thermique | |
FR2878905A1 (fr) | Procede de gestion d'un moteur a combustion interne | |
JPS58144640A (ja) | 内燃機関の電子制御燃料噴射方法 | |
JPS6217323A (ja) | 内燃機関の燃料噴射制御装置 | |
JPH0368221B2 (es) | ||
JP2591072B2 (ja) | 内燃機関の制御装置 | |
FR2829185A1 (fr) | Procede et dispositif de commande d'une soupape de reglage d'un flux de gaz d'echappement recircules dans le collecteur d'admission d'un moteur a combustion interne | |
JPS63147951A (ja) | 内燃エンジンの燃料供給制御方法 | |
JPH03275956A (ja) | 内燃機関の空燃比制御装置 | |
FR2731050A1 (fr) | Procede d'estimation du remplissage en air d'un cylindre d'un moteur a combustion interne |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19871019 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE ES GB IT NL SE |
|
17Q | First examination report despatched |
Effective date: 19890118 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE ES GB IT NL SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19901219 |
|
ITF | It: translation for a ep patent filed |
Owner name: JACOBACCI & PERANI S.P.A. |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
REF | Corresponds to: |
Ref document number: 3766790 Country of ref document: DE Date of ref document: 19910131 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19911013 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 19911014 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19920501 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee | ||
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19920701 |
|
EUG | Se: european patent has lapsed |
Ref document number: 87402272.6 Effective date: 19920510 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 19990601 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20051013 |