EP0638717B1 - Dispositif pour commander l'injection en carburant et l'allumage d'un moteur à combustion - Google Patents

Dispositif pour commander l'injection en carburant et l'allumage d'un moteur à combustion Download PDF

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Publication number
EP0638717B1
EP0638717B1 EP94110647A EP94110647A EP0638717B1 EP 0638717 B1 EP0638717 B1 EP 0638717B1 EP 94110647 A EP94110647 A EP 94110647A EP 94110647 A EP94110647 A EP 94110647A EP 0638717 B1 EP0638717 B1 EP 0638717B1
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EP
European Patent Office
Prior art keywords
combustion engine
injection
ignition
internal combustion
cam shaft
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
Application number
EP94110647A
Other languages
German (de)
English (en)
Other versions
EP0638717A2 (fr
EP0638717A3 (fr
Inventor
Klaus Dipl.-Ing. Walter
Thomas Dipl.-Ing. Harter
Ralf Dipl.-Ing. Klein
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0638717A2 publication Critical patent/EP0638717A2/fr
Publication of EP0638717A3 publication Critical patent/EP0638717A3/fr
Application granted granted Critical
Publication of EP0638717B1 publication Critical patent/EP0638717B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D37/00—Non-electrical conjoint control of two or more functions of engines, not otherwise provided for
    • F02D37/02—Non-electrical conjoint control of two or more functions of engines, not otherwise provided for one of the functions being ignition
    • 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
    • F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/06—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
    • F02P7/077—Circuits therefor, e.g. pulse generators
    • F02P7/0775—Electronical verniers

Definitions

  • the invention relates to a device for regulating fuel injection and the ignition in an internal combustion engine the genus of the main claim.
  • the two rotating disks are made of matching fixed ones Sampled from the chronological order of the The impulses delivered to the transducer will provide a clear statement about won the position of crankshaft and camshaft, depending of which, control signals for injection and Ignition formed.
  • the injection takes place in dependence on the known device from the camshaft sensor signal to the cylinder group for the first time, which has predominantly closed inlet valves.
  • the known device has the disadvantage that the first injections done with undefined storage angles and at one early point in time when the fuel pressure build-up phase is not yet is completed, a variety of injections take place.
  • German patent application P 42 30 616 a device for detecting the position at least of a wave having a reference mark. This facility is used in an internal combustion engine, it is used after switching off the ignition and injection, a leak detection carried out, the position of the crank and the camshaft is determined and stored at a standstill.
  • Control unit When switching on again, the positions determined in this way are displayed Control unit immediately available so that the first injections can take place shortly after the start of shooting. In this known However, the device must always carry out a lag detection will.
  • the device according to the invention with the features of claim 1 has the advantage that the position of the crankshaft and camshaft an internal combustion engine can be determined particularly quickly, so that a very early start of sequential injection is possible.
  • the first injections take place with a defined one Storage angle and at the latest possible time, so that these injections are largely secured Fuel pressure. It will also be a safe one phase-correct cylinder detection and ignition output already after particularly short rotation angle obtained, so that there are short start times surrender.
  • Phase encoder disc is arranged with a 180 ° mark with is sensed on a satin transducer while at the same time Crankshaft sender disc with 60-2 markings and a reference mark is present and the discs are arranged so that the Changing the level of the camshaft encoder disk as precisely as possible between two reference marks takes place. From the reference mark and the Edge changes of the camshaft sensor signal become marks M1 to M4 educated. At the start, the first injection starts synchronized to a mark M1 to M4, according to the position of the Internal combustion engine the first injections are discontinued so that no start times are reached.
  • FIG. 1 shows one rough overview of the arrangement of crankshaft or camshaft together the associated sensors and the control unit in which the Calculations for regulating injection and ignition are running.
  • Figure 2 are control signals or signals emitted by sensors during the Start phase of an internal combustion engine plotted against time.
  • a second encoder disk 14 is connected to the camshaft 15 of the internal combustion engine connected and has a mark 16 on its circumference, that extends over an angle of 180 °. At 17 is between Crank and camshaft existing connection that the camshaft rotates at half crankshaft speed, shown symbolically.
  • the two encoder disks 10, 14 are of sensors 18, 19, for example inductive sensors or Hall sensors, for example static Hall sensors that are detected when the Angle marks are generated in the transducers either prepared the same and fed to a control unit 20 or only in Control unit 20 prepared in a suitable manner, preferably Rectangular signals are formed, the rising edges of which begin an angle mark and its falling flanks the end of one Correspond to the angle mark. These signals or the time sequences of the individual pulses are evaluated in the control unit.
  • the control unit 20 receives additional inputs for which Control or regulation of the internal combustion engine required input variables, measured by different sensors.
  • sensors may be mentioned: a temperature sensor 21 which engine temperature, a throttle sensor 22 which measures the position the throttle valve registered, a pressure sensor 23, the Pressure in the intake pipe or the pressure in a cylinder of the internal combustion engine measures.
  • an "ignition on" signal is input 24 supplied, when the ignition switch 25 is supplied by terminal K1.15 of the ignition lock.
  • control unit or storage means On the output side, the control unit or storage means, as well as a permanent storage designated 30 includes, signals for ignition and injection, for Corresponding components of the internal combustion engine, not specified in any more detail to disposal. These signals are via the outputs 26 and 27 of the control unit 20 issued.
  • control unit 20 can also other necessary for the control of the internal combustion engine Emit signals. It is not essential that everyone shown sensors are available.
  • the voltage supply to the control unit 20 is carried out in the usual way Way with the help of a battery 28, which has a switch 29 during the operation of the internal combustion engine and in another Design during a run-on phase after the engine is switched off is connected to the control unit 20.
  • the position of the Crankshaft 11 and the camshaft 15 during the operation of the Internal combustion engine can be detected at any time, since the assignment between Crankshaft and camshaft is as well known as the assignment between the position of the camshaft and the position of the individual Cylinder, synchronization can take place after recognition of the reference mark done and after a successful synchronization in known Way controlled and regulated the injection and ignition will.
  • Such control or regulation of an internal combustion engine is described for example in DE-OS 39 23 478 and is therefore not explained in detail here.
  • Figure 2 are for a 5-cylinder internal combustion engine for understanding the invention essential signal or voltage waveforms U (t) [V] recorded during test runs over time t in Milliseconds applied.
  • the starting conditions are, for example: Fig. 2 Injection pre-storage 30 ° KW after LWOT Starting position 48 ° KW before OT1 First injection after 150 ° KW First ignition after 480 ° KW Start of start after 480 ° KW Fig 3 Injection pre-storage 72 ° KW after LWOT Starting position 60 ° KW before OT3 First injection after 54 ° KW First ignition after 348 ° KW Start of start after 348 ° KW Fig. 4 Injection pre-storage 102 ° KW according to LWOT Starting position 72 ° KW before OT4 First injection after 96 ° KW First ignition after 360 ° KW Start of start after 360 ° KW Fig. 5 Injection pre-storage + 6 ° KW before LWOT Starting position 54 ° KW before OT5 First injection after 120 ° KW First ignition after 474 ° KW Start of start after 474 ° KW
  • FIG. 2a shows the control signals A, B, C, D and E specified for injectors EV1 to EV5, where the injections are characterized by the minima.
  • the hatched areas indicate the first injection.
  • Area X denotes a phase during which an intake valve is open is. With an arrow, the first ignitions are in the individual associated cylinders take place, symbolized.
  • the upper signal F gives the course of the output signal of the camshaft encoder or the phase encoder, with this signal a phase change occurs every 360 ° KW with the selected encoder disc on.
  • the first edge change is referred to as the M1 mark.
  • the lower Signal G shows the course of the ignition signals.
  • the engine is started via the ignition lock 25 initiated.
  • the electric fuel pump relay is operated so that the fuel pump with the Fuel delivery begins.
  • control unit is usually the most accurate Angle position of the crankshaft or camshaft not yet known. Becomes however, a run-on detection was carried out, as in the German one Patent application P 42 30 616 is described is the exact one The angular position is already known at this point and the control unit can immediately start calculating the essential for the injection Times begin.
  • crankshaft encoder gives speed-dependent impulses from.
  • FIGS. 3 to 5 show the same situation as in Figure 2, but at a different starting position of the engine and thus also at other injection angles.
  • the reference mark BM is in the output signal of the crankshaft sensor recognizable, it corresponds to one as brand M2 or M4 designated brand.
  • the mark M3 by the first edge change of the camshaft sensor signal is determined.
  • the cylinder that serves the brands with the first injection can be selected depending on the engine temperature. For a quick start small pre-storage angles can be achieved, and possibly even Injections into the open intake valve are required, if an unfavorable one Spark plug position or very long injection times do not to forbid. Simultaneously with the first injection or shortly afterwards there is a second injection into the next cylinder.
  • this mark Since the ignition output follows the level change of the phase signal, the exact location of this mark must be known. The determination this mark can be adapted by a suitable adaptation process Start or idle.
  • Pre-splashes are included Injections before synchronization in all cylinders at the same time respectively.
  • First sequential injections, too before the start of filming are only in connection with Leakage detection or an absolute encoder system possible because in these the exact position of the motor or shaft in both cases are known immediately after the start.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Claims (7)

  1. Installation pour réguler l'injection de carburant et l'allumage d'un moteur à combustion interne comprenant une installation de calcul qui détermine la position angulaire du vilebrequin et de l'arbre à cames par exploitation de signaux fournis par des capteurs pour générer les signaux de commande pour les injecteurs et déclencher les allumages, et pour déterminer la position de l'arbre à cames, on détecte un disque phonique associé à l'arbre à cames qui comporte un repère angulaire s'étendant sur 180° et le vilebrequin ou un disque phonique associé au vilebrequin comporte au moins un repère de référence, le vilebrequin et l'arbre à cames étant associés pour que le changement de niveau du signal du capteur de l'arbre à cames se trouve sensiblement au milieu entre deux repères de référence, et à partir du repère de référence du signal du vilebrequin et de chaque changement de flanc du signal de l'arbre à cames par cycle de fonctionnement du moteur, on forme chaque fois un repère (M1-M4) utilisé pour générer les signaux d'injection,
    caractérisée en ce qu'
    au démarrage du moteur à combustion interne, la première injection commence en synchronisme avec les repères (M1-M4) et en fonction de la position du moteur à combustion interne, on effectue les injections pour arriver à des temps de démarrage courts.
  2. Installation selon la revendication 1,
    caractérisée en ce que
    l'installation de calcul est l'appareil de commande du moteur à combustion interne.
  3. Installation selon les revendications 1 ou 2,
    caractérisée en ce que
    la sélection du cylindre pour la première injection se fait en fonction de la température.
  4. Installation selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    partant du repère (M1-M4), on définit les déclenchements des allumages qui ne sont faits que lorsqu'on reconnaít un repère de référence et un changement de phase, la succession des signaux correspondants n'étant pas prise en compte.
  5. Installation selon l'une quelconque des revendications 1 à 3,
    caractérisée en ce que
    dans des moteurs à 4, 6, 8, 12 cylindres, les premiers déclenchements d'allumage se font dès la détection d'un changement de phase ou après le repère de référence sans contrôle préalable.
  6. Installation selon l'une quelconque des revendications précédentes,
    caractérisée en ce qu'
    après la synchronisation, on a un passage à l'injection usuelle spécifique par cylindre sans injection défectueuse ou double injection notamment la SEFI.
  7. Installation selon l'une quelconque des revendications précédentes,
    caractérisée en ce que
    l'appareil de commande comprend des moyens tels qu'après la coupure de l'allumage du moteur à combustion interne, pendant une phase de fin de mouvement, le signal du capteur ou les signaux de capteur jusqu'à l'arrêt du vilebrequin ou de l'arbre à cames sont mis en mémoire au moment de l'arrêt pour être fournis de nouveau lors du démarrage suivant.
EP94110647A 1993-08-13 1994-07-08 Dispositif pour commander l'injection en carburant et l'allumage d'un moteur à combustion Expired - Lifetime EP0638717B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4327218A DE4327218A1 (de) 1993-08-13 1993-08-13 Einrichtung zur Regelung der Kraftstoffeinspritzung und der Zündung bei einer Brennkraftmaschine
DE4327218 1993-08-13

Publications (3)

Publication Number Publication Date
EP0638717A2 EP0638717A2 (fr) 1995-02-15
EP0638717A3 EP0638717A3 (fr) 1996-12-11
EP0638717B1 true EP0638717B1 (fr) 1998-12-23

Family

ID=6495110

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94110647A Expired - Lifetime EP0638717B1 (fr) 1993-08-13 1994-07-08 Dispositif pour commander l'injection en carburant et l'allumage d'un moteur à combustion

Country Status (3)

Country Link
EP (1) EP0638717B1 (fr)
JP (1) JPH0777099A (fr)
DE (2) DE4327218A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19517749C1 (de) * 1995-05-15 1996-07-04 Siemens Ag Kraftstoffeinspritz-Verfahren für mehrzylindrige Brennkraftmaschinen
DE19650250A1 (de) * 1996-12-04 1998-06-10 Bosch Gmbh Robert Einrichtung zur Regelung einer Brennkraftmaschine
DE19716916A1 (de) * 1997-04-23 1998-10-29 Porsche Ag ULEV-Konzept für Hochleistungsmotoren
DE19735720A1 (de) * 1997-08-18 1999-02-25 Bayerische Motoren Werke Ag Verfahren zur Erkennung des Verbrennungstaktes eines bestimmten Zylinders beim Start einer Brennkraftmaschine
DE19741597A1 (de) * 1997-09-20 1999-03-25 Schaeffler Waelzlager Ohg Nockenpulsrad für eine Brennkraftmaschine mit variabler Nockenwellensteuerung
US6035826A (en) * 1997-09-30 2000-03-14 Toyota Jidosha Kabushiki Kaisha Crank angle detecting apparatus of internal combustion engine
DE19909050B4 (de) * 1998-03-02 2004-02-19 Unisia Jecs Corp., Atsugi Vorrichtung und Verfahren zum Erfassen des Kurbelwinkels eines Motors
DE10008547A1 (de) * 2000-02-24 2001-08-30 Bosch Gmbh Robert Verfahren zur Beurteilung des Verschleißes von Motoröl
DE10114054A1 (de) 2001-03-15 2002-09-26 Volkswagen Ag Verfahren zur Anhebung einer Abgastemperatur einer fremdgezündeten, direkteinspritzenden Verbrennungskraftmaschine
DE10221393B4 (de) * 2002-05-14 2005-12-22 Siemens Ag Vorrichtung und Verfahren zum Starten einer mehrzylindrigen Brennkraftmaschine
DE10228147B3 (de) * 2002-06-24 2004-01-22 Siemens Ag Verfahren zum Bestimmen der Start-Winkelposition einer Brennkraftmaschine
DE10246224B4 (de) * 2002-10-04 2008-03-13 Bayerische Motoren Werke Ag Vorrichtung und Verfahren zum Erkennen eines bestimmten Zylindersegments beim Start einer Brennkraftmaschine
US7966869B2 (en) * 2007-07-06 2011-06-28 Hitachi, Ltd. Apparatus and method for detecting cam phase of engine
DE102010003524A1 (de) 2010-03-31 2011-10-06 Robert Bosch Gmbh Schaltungsanordnung und Verfahren zur Auswertung von Signalen eines Kurbelwellensensors und eines Nockenwellensensors einer Brennkraftmaschine
GB2553561B (en) * 2016-09-08 2020-01-08 Delphi Tech Ip Ltd Engine synchronisation means
CN115355096B (zh) * 2022-08-03 2023-11-28 中车大连机车车辆有限公司 一种发动机快速启动同步控制方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5999044A (ja) * 1982-11-26 1984-06-07 Toyota Motor Corp 燃料噴射時期制御装置
JPS6062665A (ja) * 1983-09-16 1985-04-10 Hitachi Ltd エンジン制御装置
JPH0823325B2 (ja) * 1986-04-29 1996-03-06 三菱電機株式会社 内燃機関の燃料制御装置
FR2637652B1 (fr) * 1988-10-11 1993-12-31 Bendix Electronics Sa Dispositif de reperage d'un cycle de fonctionnement d'un moteur a combustion interne
ES2024616B3 (es) * 1988-11-28 1992-03-01 Siemens Ag Procedimiento para inyectar combustible en una maquina de combustion interna
DE4230616A1 (de) * 1992-09-12 1994-03-17 Bosch Gmbh Robert Einrichtung zur Erkennung der Stellung wenigstens einer, eine Referenzmarke aufweisenden Welle

Also Published As

Publication number Publication date
DE4327218A1 (de) 1995-02-16
JPH0777099A (ja) 1995-03-20
EP0638717A2 (fr) 1995-02-15
DE59407523D1 (de) 1999-02-04
EP0638717A3 (fr) 1996-12-11

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