FR2646472A1 - METHOD FOR ADJUSTING THE INJECTION QUANTITY IN A FUEL INJECTION DEVICE CONSISTING OF A PUMP AND INJECTORS AND CONTROL BY ELECTROMAGNETIC VALVES - Google Patents
METHOD FOR ADJUSTING THE INJECTION QUANTITY IN A FUEL INJECTION DEVICE CONSISTING OF A PUMP AND INJECTORS AND CONTROL BY ELECTROMAGNETIC VALVES Download PDFInfo
- Publication number
- FR2646472A1 FR2646472A1 FR9005385A FR9005385A FR2646472A1 FR 2646472 A1 FR2646472 A1 FR 2646472A1 FR 9005385 A FR9005385 A FR 9005385A FR 9005385 A FR9005385 A FR 9005385A FR 2646472 A1 FR2646472 A1 FR 2646472A1
- Authority
- FR
- France
- Prior art keywords
- temperature
- injectors
- electromagnetic valves
- exhaust
- control
- 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.)
- Withdrawn
Links
- 238000002347 injection Methods 0.000 claims abstract description 19
- 239000007924 injection Substances 0.000 claims abstract description 19
- 239000007789 gas Substances 0.000 claims abstract description 18
- 238000002485 combustion reaction Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 5
- 239000000446 fuel Substances 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 239000006185 dispersion Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- F02D41/008—Controlling each cylinder individually
- F02D41/0085—Balancing of cylinder outputs, e.g. speed, torque or air-fuel ratio
-
- 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
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1439—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the position of the sensor
- F02D41/1441—Plural sensors
- F02D41/1443—Plural sensors with one sensor per cylinder or group of cylinders
-
- 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
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1446—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being exhaust temperatures
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)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Selon ce procédé, selon lequel des grandeurs d'un moteur sont détectées par des capteurs 16, 17, 18, 19 et sont traitées dans un appareil de commande électronique 6 en vue de commander des soupapes électromagnétiques 7, 8, 9, 10 reliées à des injecteurs 2, 3, 4, 5, la température des gaz d'échappement est mesurée, la valeur réelle de cette température est comparée à une valeur de consigne, mémorisée dans une mémoire d'ensembles de courbes caractéristiques, de la température des gaz d'échappement déterminée préalablement et dans le cas d'un écart, la quantité d'injection est asservie à la valeur de consigne par modification de la durée de commande des soupapes électromagnétiques. Application notamment à la commande de moteurs à combustion interne de véhicules automobiles.According to this method, according to which quantities of an engine are detected by sensors 16, 17, 18, 19 and are processed in an electronic control apparatus 6 with a view to controlling electromagnetic valves 7, 8, 9, 10 connected to of the injectors 2, 3, 4, 5, the temperature of the exhaust gases is measured, the actual value of this temperature is compared with a set value, stored in a memory of sets of characteristic curves, of the gas temperature exhaust determined beforehand and in the case of a deviation, the injection quantity is slaved to the set value by modifying the duration of control of the electromagnetic valves. Application in particular to the control of internal combustion engines of motor vehicles.
Description
t L'invention concerne un procédé pour régler la quantité d'injection d'unThe invention relates to a method for controlling the injection quantity of a
dispositif d'injection de carburant constitué par une pompe et des injecteurs et commandé par des soupapes électromagnétiques, pour des moteurs e combustion interne à plusieurs cylindres à auto-allumage, selon lequel des valeurs de la vitesse de rotation, de la charge et de la température des gaz d'échappement sont détectées par des fuel injection device consisting of a pump and injectors and controlled by electromagnetic valves, for self-igniting multi-cylinder internal combustion engines, according to which values of the rotational speed, the load and the temperature of the exhaust gases are detected by
capteurs et sont traitées dans un appareil de commande élec- sensors and are processed in an electrical control unit.
tronique pour former des signaux de sortie permettant la commande des soupapes électromagnétiques reliées par une liaison tronic to form output signals for controlling electromagnetic valves connected by a link
active aux injecteurs.active injectors.
Dans le procédé connu d'après la demande de brevet In the process known from the patent application
allemand publiée sous le n 19 16 167, n'importe quelle régu- German published under No. 19 16 167, any
lation peut être effectuée au moyen d'un appareil de com- may be effected by means of a communication device
mande électronique détectant des données de fonctionnement du moteur à combustion interne, moyennant une adaptation des instants d'ouverture de soupapes de commande (soupapes electronic control detecting operating data of the internal combustion engine, by adapting the opening times of the control valves (valves
d'admission, soupapes d'échappement) et de l'instant d'in- intake valves, exhaust valves) and the time of in-
jection du carburant, auquel cas on utilise comme dispositif d'actionnement pour l'injection du carburant, une soupape électromagnétique pouvant être commutée par l'appareil de commande. Au moyen des données prélevées du moteur à combustion interne, comme par exemple la vitesse de rotation, la charge le développement de fumées, des températures dans la chambre de combustion et/ou le tuyau d'échappement ou analogues, on fuel injection, in which case an actuating device for fuel injection is used, an electromagnetic valve which can be switched by the control device. By means of the data taken from the internal combustion engine, such as, for example, the speed of rotation, the load, the development of fumes, the temperatures in the combustion chamber and / or the exhaust pipe or the like,
peut contrôler ou régler la qualité de la combustion. can control or regulate the quality of combustion.
Cependant, aVec des dispositions de ce type, on ne However, with such provisions, we do not
peut pas éviter, dans la pratique, une irrégularité du fonc- In practice, this can not prevent an irregularity of the func-
tionnement du moteur dans des gammes déterminées de la vi- the engine within specified ranges of the
tesse de rotation.rotation speed.
C'est pourquoi l'invention a pour but de permettre, This is why the invention aims to allow,
à l'aide de moyens simples, de garantir, dans toute l'éten- by simple means, to guarantee, throughout the entire
due de la gamme de vitesses de rotation, un fonctionnement due to the range of rotational speeds, an operation
uniforme du moteur à combustion interne. uniform of the internal combustion engine.
Ce problème est résolu conformément à l'invention grâce au fait que la température des gaz d'échappement de chaque cylindre du moteur à combustion interne est mesurée, que la valeur réelle respective de cette température des gaz d'échappement est comparée à une valeur de consigne, This problem is solved according to the invention by virtue of the fact that the temperature of the exhaust gases of each cylinder of the internal combustion engine is measured, that the respective actual value of this exhaust gas temperature is compared with a value of setpoint
mémorisée dans une mémoire d'ensembles de courbes caracté- stored in a memory of sets of characteristic curves.
ristiques, de la température des gaz d'échappement détermin- the temperature of the exhaust gases determined by
née préalablement et que dans le cas d'un écart, la quantité previously created and that in the case of a difference, the quantity
d'injection est asservie à la valeur de consigne par modi- Injection is slaved to the set point by
fication de la durée de commande de la soupape électromagné- the duration of the control of the solenoid valve
tique respective.respective tick.
Selon une autre caractéristique de l'invention, la température des gaz d'échappement est mesurée directement en aval des soupapes d'échappement associées aux différents According to another characteristic of the invention, the temperature of the exhaust gas is measured directly downstream of the exhaust valves associated with the different
cylindres.cylinders.
L'avantage de l'invention doit être vu dans le fait que la quantité d'injection de chaque cylindre peut être modifiée pendant le fonctionnement du moteur à combustion interne et par conséquent des dispersions entre les quantités injectées d'un cylindre à l'autre peuvent être éliminées par réglage. Une régulation de la quantité d'injection dans chaque The advantage of the invention should be seen in the fact that the injection quantity of each cylinder can be modified during the operation of the internal combustion engine and therefore dispersions between the quantities injected from one cylinder to the other can be eliminated by adjustment. A regulation of the amount of injection in each
cylindre est possible jusqu'à des vitesses de rotation élevées. cylinder is possible up to high rotational speeds.
On peut même supprimer un équilibrage réciproque de la pompe et de l'injecteur au banc d'essai de la pompe, pendant leur montage dans le moteur, étant donne que des irrégularités de la pompe, qui apparaissent en raison de tolérances inévitables de fabrication de la pompe et de l'injecteur, peuvent être Even reciprocal balancing of the pump and injector can be omitted from the pump test stand while being mounted in the motor, since pump irregularities occur due to unavoidable manufacturing tolerances. pump and injector, can be
éliminées par régulation.eliminated by regulation.
D'autres caractéristiques et avantages de la présente Other features and benefits of this
invention ressortiront de la description donnée ci-après invention will emerge from the description given below
prise en référence aux dessins annexes illustrant l'invention. taken with reference to the accompanying drawings illustrating the invention.
Un dispositif d'injection de carburant, commandé par des soupapes électromagnétiques et prévu pour un moteur à combustion interne 1 à plusieurs cylindres est constitué essentiellement par une pompe et des injecteurs 2, 3, 4, 5, A fuel injection device, controlled by electromagnetic valves and intended for a multi-cylinder internal combustion engine 1, consists essentially of a pump and injectors 2, 3, 4, 5,
correspondant au nombre des cylindres et dont chacun est équi- corresponding to the number of cylinders and each of which is equi-
pé d'une soupape électromagnétique 7,8,9,10 pouvant être electromagnetic valve 7,8,9,10 which can be
commandée par un appareil de commande électronique 6. controlled by an electronic control device 6.
L'appareil de commande 6 équipé de sa mémoire d'en- The control apparatus 6 equipped with its memory
sembles de courbes caractéristiques contient déjà un ensemble de courbes caractéristiques relatives à la quantité d'injection, qui peut être déterminée au préalable de façon optimale et dont les courbes caractéristiques "Q" de la quantité d'injection, qui sont représentées différemment, sont reproduites en fonction de la température des gaz d'échappement "T " et gaz d'échappement characteristic curves already contains a set of characteristic curves relating to the injection quantity, which can be determined beforehand in an optimal manner and whose characteristic curves "Q" of the injection quantity, which are represented differently, are reproduced according to the temperature of the exhaust gas "T" and exhaust
de la vitesse de rotation "n".the speed of rotation "n".
Chaque tubulure individuelle 11,12,13,14 d'un col- Each individual tubing 11, 12, 13, 14 of a collar
lecteur d'échappement 15, raccordée par bride au moteur à combustion interne 1, est équipée d'un capteur 16,17,18,19 exhaust nozzle 15, flanged to the internal combustion engine 1, is equipped with a sensor 16,17,18,19
détectant la température des gaz d'échappement. La tempé- detecting the temperature of the exhaust gas. The temperature
rature respective des gaz d'échappement est mesurée avantageu- respective reduction of the exhaust gas is measured advantageously
sement directement en aval des soupapes d'échappement non repré- directly downstream of the exhaust valves not shown
sentée et est comparée, sous la forme de vateurs présentes instantanément ou de valeurs réelles, de même que les valeurs présentes instantanément de la vitesse de rotation et de la charge, aux valeurs de consigne mémorisées dans l'ensemble des courbes caractéristiques et sont réglées par asservissement, dans le cas d'écarts à la suite d'irrégularités d'un cylindre à un autre, au moyen d'une modification du temps de commande, délivré par l'appareil de commande, de la soupape électromagnétique jusqu'à ce que les dispersions entre les quantités soient supprimées ou éliminées. Etant donné que le début de l'injection est un autre paramètre influant sur la température des gaz d'échappement>, de façon appropriée ce début de l'injection devrait être maintenu À 30 constant dans le cas de l'utilisation.de la température des gaz The instantaneous instantaneous values of the rotational speed and the load are compared to the set values stored in the set of characteristic curves and are adjusted by the instantaneous values or instantaneous values. enslavement, in the case of deviations as a result of irregularities from one cylinder to another, by means of a modification of the control time, delivered by the control device, of the electromagnetic valve until dispersions between quantities are suppressed or eliminated. Since the beginning of the injection is another parameter influencing the temperature of the exhaust gas, suitably this start of the injection should be kept constant in the case of the use of the temperature. gases
d'échappement en tant que mesure des dispersions entre les quanti- exhaust as a measure of dispersions between
tés d'injection. A cet effet, on peut utiliser des moyens permettant de déterminer, à partir de la variation du courant de la soupape électromagnétique, la fermeture de cette dernière et de l'utiliser injection tees. For this purpose, it is possible to use means making it possible to determine, from the variation of the current of the electromagnetic valve, the closure of the latter and to use it.
en tant que signalisation en retour pour le début -de l'injection. as feedback for the start of the injection.
Le début de l'injection peut par conséquent être réglé de fa;on précise et une influence perturbatrice, liée au début de l'injection, sur la température des gaz d'échappement The beginning of the injection can therefore be adjusted precisely and a disturbing influence, linked to the start of the injection, on the temperature of the exhaust gases.
ne peut alcrs plus intervenir.can not intervene any more.
Claims (2)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3914264A DE3914264C1 (en) | 1989-04-29 | 1989-04-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2646472A1 true FR2646472A1 (en) | 1990-11-02 |
Family
ID=6379793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9005385A Withdrawn FR2646472A1 (en) | 1989-04-29 | 1990-04-27 | METHOD FOR ADJUSTING THE INJECTION QUANTITY IN A FUEL INJECTION DEVICE CONSISTING OF A PUMP AND INJECTORS AND CONTROL BY ELECTROMAGNETIC VALVES |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE3914264C1 (en) |
| FR (1) | FR2646472A1 (en) |
| GB (1) | GB2230874A (en) |
| IT (1) | IT1241574B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6002252A (en) | 1991-05-22 | 1999-12-14 | Wolff Controls Corporation | Compact sensing apparatus having transducer and signal conditioner with a plurality of mounting pins |
| US5946908A (en) * | 1996-01-17 | 1999-09-07 | Yamaha Hatsudoki Kabushiki Kaisha | Engine control and wall temperature sensor |
| US6000384A (en) * | 1998-03-06 | 1999-12-14 | Caterpillar Inc. | Method for balancing the air/fuel ratio to each cylinder of an engine |
| US20020152985A1 (en) * | 2001-04-20 | 2002-10-24 | Wolff Peter U. | System, apparatus including on-board diagnostics, and methods for improving operating efficiency and durability of compression ignition engines |
| WO2003018981A1 (en) * | 2001-08-29 | 2003-03-06 | NIIGATA POWER SYSYEMS Co., Ltd. | Engine, engine exhaust temperature controlling device and controlling method |
| FR2851615B1 (en) * | 2003-02-21 | 2007-04-27 | Renault Sa | DEVICE AND METHOD FOR CONTROLLING FUEL FLOW INJECTED IN A DIESEL ENGINE |
| ES2353871T3 (en) * | 2004-02-24 | 2011-03-07 | Renault S.A.S. | DEVICE AND PROCEDURE FOR REGULATING FUEL FUEL INJECTED IN A DIESEL ENGINE. |
| AU2005308302B2 (en) * | 2004-11-25 | 2009-04-23 | Hitachi Construction Machinery Co., Ltd. | Device and method for protecting engine of construction machine |
| GB2491592A (en) * | 2011-06-07 | 2012-12-12 | Gm Global Tech Operations Inc | Method of diagnosing and recovering an injector failure in an internal combustion engine. |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2144395A1 (en) * | 1971-06-11 | 1973-03-08 | Volkswagenwerk Ag | COMBUSTION MACHINE WITH AT LEAST ONE EXHAUST GAS PURIFICATION ARRANGEMENT |
| FR2233498A1 (en) * | 1973-06-14 | 1975-01-10 | Bosch Gmbh Robert | |
| US4128998A (en) * | 1972-06-26 | 1978-12-12 | Nippon Soken, Inc. | Overheat preventing system for exhaust gas purifier of vehicles |
| EP0042163A2 (en) * | 1980-06-14 | 1981-12-23 | Robert Bosch Gmbh | Method of controlling fuel supply and ignition timing in combustion engines |
| DE3303617A1 (en) * | 1983-02-03 | 1984-08-09 | Robert Bosch Gmbh, 7000 Stuttgart | Method and device for the control of operating parameters of a compression-ignition internal combustion engine |
| JPS60195349A (en) * | 1984-03-17 | 1985-10-03 | Toyota Motor Corp | Fuel supply control device in internal-combustion engine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL102934C (en) * | 1959-02-11 | 1900-01-01 | ||
| DE1916167A1 (en) * | 1969-03-28 | 1970-10-15 | Daimler Benz Ag | Device for controlling an internal combustion engine |
| JPH01253543A (en) * | 1988-04-01 | 1989-10-09 | Fuji Heavy Ind Ltd | Air-fuel ratio control device for engine |
-
1989
- 1989-04-29 DE DE3914264A patent/DE3914264C1/de not_active Expired - Lifetime
-
1990
- 1990-04-17 GB GB9008501A patent/GB2230874A/en not_active Withdrawn
- 1990-04-24 IT IT47886A patent/IT1241574B/en active IP Right Grant
- 1990-04-27 FR FR9005385A patent/FR2646472A1/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2144395A1 (en) * | 1971-06-11 | 1973-03-08 | Volkswagenwerk Ag | COMBUSTION MACHINE WITH AT LEAST ONE EXHAUST GAS PURIFICATION ARRANGEMENT |
| US4128998A (en) * | 1972-06-26 | 1978-12-12 | Nippon Soken, Inc. | Overheat preventing system for exhaust gas purifier of vehicles |
| FR2233498A1 (en) * | 1973-06-14 | 1975-01-10 | Bosch Gmbh Robert | |
| EP0042163A2 (en) * | 1980-06-14 | 1981-12-23 | Robert Bosch Gmbh | Method of controlling fuel supply and ignition timing in combustion engines |
| DE3303617A1 (en) * | 1983-02-03 | 1984-08-09 | Robert Bosch Gmbh, 7000 Stuttgart | Method and device for the control of operating parameters of a compression-ignition internal combustion engine |
| JPS60195349A (en) * | 1984-03-17 | 1985-10-03 | Toyota Motor Corp | Fuel supply control device in internal-combustion engine |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 10, no. 44 (M-455)(2101) 21 février 1986, & JP-A-60 195349 (TOYOTA JIDOSHA K.K.) 03 octobre 1985, * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3914264C1 (en) | 1990-09-13 |
| GB2230874A (en) | 1990-10-31 |
| IT9047886A1 (en) | 1991-10-24 |
| IT1241574B (en) | 1994-01-18 |
| GB9008501D0 (en) | 1990-06-13 |
| IT9047886A0 (en) | 1990-04-24 |
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| ST | Notification of lapse |