EP0607382B1 - Installation d'allumage sequentiel par etincelles pour moteurs a combustion interne - Google Patents

Installation d'allumage sequentiel par etincelles pour moteurs a combustion interne Download PDF

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Publication number
EP0607382B1
EP0607382B1 EP93915651A EP93915651A EP0607382B1 EP 0607382 B1 EP0607382 B1 EP 0607382B1 EP 93915651 A EP93915651 A EP 93915651A EP 93915651 A EP93915651 A EP 93915651A EP 0607382 B1 EP0607382 B1 EP 0607382B1
Authority
EP
European Patent Office
Prior art keywords
ignition
current
primary
spark
increased
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
EP93915651A
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German (de)
English (en)
Other versions
EP0607382A1 (fr
Inventor
Karl-Heinz Kugler
Walter Gollin
Karlheinz Riedel
Christian Zimmermann
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
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0607382A1 publication Critical patent/EP0607382A1/fr
Application granted granted Critical
Publication of EP0607382B1 publication Critical patent/EP0607382B1/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
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P3/00—Other installations
    • F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
    • F02P3/04—Layout of circuits
    • F02P3/05—Layout of circuits for control of the magnitude of the current in the ignition coil
    • F02P3/051—Opening or closing the primary coil circuit with semiconductor devices
    • F02P3/053—Opening or closing the primary coil circuit with semiconductor devices using digital techniques
    • 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
    • F02P15/00—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits
    • F02P15/08—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits having multiple-spark ignition, i.e. ignition occurring simultaneously at different places in one engine cylinder or in two or more separate engine cylinders
    • 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
    • F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
    • F02P17/10—Measuring dwell or antidwell time
    • 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
    • F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
    • F02P17/12—Testing characteristics of the spark, ignition voltage or current
    • 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
    • F02P9/00—Electric spark ignition control, not otherwise provided for
    • F02P9/002—Control of spark intensity, intensifying, lengthening, suppression

Definitions

  • the invention relates to a method for controlling the ignition system for internal combustion engines according to the preamble of the main claim.
  • An ignition system for generating a secondary spark ignition is already known from DE-A-2340865, a secondary spark ignition being triggered at the ignition point and an ignition spark being triggered on the secondary side by the repeated successive activation of the output stage each time the ignition coil current is switched off.
  • the ignition spark does not burn out until the primary current is switched on again, so that a certain residual energy is contained in the ignition coil at the time of switching on again.
  • the charging process of a single ignition usually has the same duration as the charging process of the remaining individual ignitions of this secondary spark ignition. Under certain circumstances, especially when energy losses occur, for example, in the ignition harness or as a result of shunts on the spark plug, the charging process of a single ignition is not sufficient to trigger an ignition spark.
  • the method according to the invention with the characterizing features of the main claim has the advantage that the residual energy remaining in the coil is determined when the coil is switched on again, and the conditions prevailing on the candle can be deduced therefrom. So it is possible to conclude a shunt on the candle if the residual energy is too low. Another advantage is the fact that conclusions about the mixture formation are possible by evaluating the residual energy, for example, an insufficient residual energy indicates a rich mixture and a very high residual energy indicates a lean mixture. Especially when starting, it offers the opportunity to improve the mixture formation. Finally, it should also be mentioned that by recognizing a shunt, the cut-off current for the subsequent individual ignition of the subsequent spark ignition can be increased, so that the spark plug burns free under certain circumstances and the shunt is eliminated.
  • control unit after a comparison of the detected primary initial current with a predeterminable reference value, which reference value can be predefined as a function of the operating state and engine type, with a smaller primary initial current than the reference value, the switch-off current for the subsequent individual ignition by one to be influenced by the control unit Switching element increased. It is particularly advantageous here that the switch-off current can be increased by increasing the base current of the output stage if the output stage is designed for it and is not yet in the fully controlled state (current limitation), since otherwise only by increasing the closing time of the output stage the cut-off current increases can be.
  • the increase in the switch-off current of the subsequent individual ignition can be increased by extending the closing time for this individual ignition if the output stage has not yet reached the current limit value, that is to say the current can increase by increasing the closing time. It is not necessary to change the supply voltage or the control signal for the output stage.
  • the primary cut-off current can be increased arbitrarily only for the subsequent individual ignition or for several individual ignitions, the evaluation of the primary initial current in the control unit being decisive.
  • FIG. 1 shows the basic structure of an ignition system of an internal combustion engine (not shown)
  • FIG. 2 shows a program sequence for detecting and evaluating the size of the primary initial current
  • FIG. 3 shows a secondary spark ignition.
  • FIG. 1 shows the basic structure of an ignition system with an ignition coil 1 consisting of primary winding 2 and secondary winding 3.
  • the primary winding 2 is connected on the one hand to the supply voltage U B and on the other hand connected to ground via the collector-emitter path of an ignition transistor 4 and a resistor 5.
  • the secondary winding 3 is on the one hand connected directly to ground and, on the other hand, is connected via a connection 6, for example to a spark plug (not shown) or a distributor (also not shown).
  • a double spark coil would also be conceivable which is connected to a spark plug on each side of the secondary winding.
  • the ignition system also has a control unit 7, which detects various operating parameters such as speed, engine load, supply voltage as input variables 8.
  • a connection 14 leads from the output of the control device 7 to the base of the ignition transistor 4, so that the primary current can be switched on and off by the control device by means of corresponding control signals to the ignition transistor.
  • a tap with a connection 9 leads from the primary branch to the control device, whereby the control device 7 detects the primary current I p via the voltage drop across the resistor in the primary circuit.
  • FIG. 2 shows a simplified program sequence for recording and evaluating the primary initial current of a single ignition EZ from a subsequent spark ignition FFZ.
  • the primary initial current I pa is detected in a work step 10 by the control unit 7.
  • the detected primary initial current I pa is compared with a predeterminable reference value I G , ie I pa I G is checked. If this query is answered with no, the output leads to step 12, ie the control unit will increase the cutoff current I pe for the subsequent individual ignition EZ, for example by increasing the base current for the ignition transistor 4.
  • step 13 to which the yes output of query 11 also leads, the primary initial current I pa of the subsequent individual ignition EZ is detected and evaluated.
  • FIG. 3 shows the subsequent spark ignition FFZ of an ignition coil consisting of individual ignitions EZ.
  • the primary current I p is shown over time or over the crankshaft angle, only the part of the crankshaft angle or time t was singled out in which the individual ignitions EZ of the secondary spark ignition FFZ are shown schematically.
  • the point 15 symbolizes the ignition timing of the internal combustion engine and that calculated by the control unit 7
  • Point 16 represents the point up to which individual ignitions can be triggered without there being the risk that the ignition will already take place in the following cylinder by turning the distributor finger or without the ignition taking place in the exhaust or intake stroke when the distribution is at rest , which can damage the intake manifold or similar. leads.
  • the individual ignitions are referred to in FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

L'invention concerne une installation d'allumage pour moteurs à combustion interne, qui comprend un appareil de commande (7) servant à déclencher une série d'allumages par étincelles, mesurant le courant primaire (Ip) de chaque allumage individuel de cette série d'allumages par étincelles, lorsque la conduction de courant est réactivée et le comparant à une valeur de référence. Le résultat de cette comparaison permet de déterminer les conditions régnant dans la chambre de combustion et des mesures sont prises par l'appareil de commande, notamment l'élévation du courant de rupture primaire, de manière à ce que des dérivations, par exemple, soient éliminées.

Claims (4)

  1. Procédé de commande de l'installation d'allumage d'un moteur à combustion interne à l'aide d'un appareil de commande qui commande le passage du courant dans au moins une bobine d'allumage, selon lequel on détecte le courant primaire dans la bobine d'allumage et à l'instant de l'allumage on déclenche un allumage séquentiel composé de plusieurs allumages séparés en branchant et en coupant plusieurs fois consécutivement le courant primaire, caractérisé en ce que le courant initial primaire lors du rebranchement du courant primaire après chaque allumage séparé (EZ) de l'allumage séquentiel (FFZ) est détecté et est comparé à une valeur de référence (IG) et lorsque le courant initial primaire est inférieur à la valeur de référence (Ipa) inférieure (IG), on augmente le courant de coupure (Ipe) pour l'allumage séparé suivant (EZ) de cet allumage séquentiel (FFZ).
  2. Procédé selon la revendication 1, caractérisé en ce qu'on augmente le courant de coupure (Ipe) ou le courant primaire dans la bobine d'allumage par un élément de commutation (4) influencé par l'appareil de commande.
  3. Procédé selon la revendications 2, caractérisé en ce que l'élément de commutation est un transistor de commutation d'allumage et le courant de coupure (Ipe) ou courant primaire de la bobine d'allumage est augmenté par l'augmentation du courant de base pour commander le transistor de commutation d'allumage dans le circuit du courant primaire.
  4. Procédé selon la revendication 3, caractérisé en ce que le courant de coupure (Ipe) est augmenté par l'allongement du temps de fermeture du transistor de commutation d'allumage.
EP93915651A 1992-08-08 1993-07-22 Installation d'allumage sequentiel par etincelles pour moteurs a combustion interne Expired - Lifetime EP0607382B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4226248A DE4226248A1 (de) 1992-08-08 1992-08-08 Zündanlage für Brennkraftmaschinen
DE4226248 1992-08-08
PCT/DE1993/000645 WO1994003723A1 (fr) 1992-08-08 1993-07-22 Installation d'allumage sequentiel par etincelles pour moteurs a combustion interne

Publications (2)

Publication Number Publication Date
EP0607382A1 EP0607382A1 (fr) 1994-07-27
EP0607382B1 true EP0607382B1 (fr) 1996-01-17

Family

ID=6465120

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93915651A Expired - Lifetime EP0607382B1 (fr) 1992-08-08 1993-07-22 Installation d'allumage sequentiel par etincelles pour moteurs a combustion interne

Country Status (6)

Country Link
US (1) US5488940A (fr)
EP (1) EP0607382B1 (fr)
JP (1) JP3325573B2 (fr)
DE (2) DE4226248A1 (fr)
ES (1) ES2082653T3 (fr)
WO (1) WO1994003723A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19608526C2 (de) * 1996-03-06 2003-05-15 Bremi Auto Elek K Bremicker Gm Verfahren zur Regelung der Mindestzündenergie bei einer Brennkraftmaschine
EP0893600B1 (fr) * 1997-06-02 2000-11-08 Federal-Mogul Ignition S.p.A. Système d'allumage par étincelles multiples pour un moteur à combustion interne
DE10003109A1 (de) 2000-01-26 2001-08-02 Bosch Gmbh Robert Verfahren zur Erzeugung einer Folge von Hochspannungszündfunken und Hochspannungszündvorrichtung
DE10320162B3 (de) * 2003-05-06 2004-10-14 Bayerische Motoren Werke Ag Zündungssteuerungsverfahren und -vorrichtung für Brennkraftmaschinen in Kraftfahrzeugen
JP5685025B2 (ja) * 2010-07-22 2015-03-18 ダイヤモンド電機株式会社 内燃機関用制御システム
EP2937555A4 (fr) * 2012-12-19 2017-01-18 Shindengen Electric Manufacturing Co., Ltd. Dispositif et procédé de commande d'allumage
EP2792878A1 (fr) * 2013-04-17 2014-10-22 Delphi Automotive Systems Luxembourg SA Étalonnage et opération d'une bobine d'allumage
RU2548663C1 (ru) * 2013-12-19 2015-04-20 Общество с ограниченной ответственностью "КДП" (ООО "КДП") Система зажигания с многократным искрообразованием
US10995726B2 (en) * 2018-03-29 2021-05-04 Woodward, Inc. Current profile optimization
FR3126455B1 (fr) * 2021-08-26 2024-05-10 Vitesco Technologies Procédé d’allumage d’un moteur thermique de véhicule automobile

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3624487A (en) * 1969-08-28 1971-11-30 Bendix Corp Dual energy electrical pulse generating system
US3945362A (en) * 1973-09-17 1976-03-23 General Motors Corporation Internal combustion engine ignition system
JPS5728871A (en) * 1980-07-30 1982-02-16 Nippon Denso Co Ltd Ignition device for internal combustion engine
JPS58140475A (ja) * 1982-02-15 1983-08-20 Nippon Denso Co Ltd 内燃機関用点火装置
JPS5918274A (ja) * 1982-07-23 1984-01-30 Nissan Motor Co Ltd 内燃機関の点火装置
JPH0686853B2 (ja) * 1986-01-09 1994-11-02 日本電装株式会社 内燃機関用点火コイルの通電時間制御装置
IT1208855B (it) * 1987-03-02 1989-07-10 Marelli Autronica Sistema di accensione ad energia di scintilla variabile per motori acombustione interna particolarmente per autoveicoli
EP0359851B1 (fr) * 1988-09-21 1995-06-07 Mitsubishi Denki Kabushiki Kaisha Installation d'allumage pour moteur à combustion interne
US5056497A (en) * 1989-04-27 1991-10-15 Aisin Seiki Kabushiki Kaisha Ignition control system
IT1240136B (it) * 1990-03-19 1993-11-27 Marelli Autronica Sistema di accensione per un motore a combustione interna
US5370099A (en) * 1990-08-24 1994-12-06 Robert Bosch Gmbh Ignition system for internal combustion engines
US5208540A (en) * 1992-02-28 1993-05-04 Coltec Industries Inc. Ignition performance monitor and monitoring method for capacitive discharge ignition systems

Also Published As

Publication number Publication date
EP0607382A1 (fr) 1994-07-27
DE4226248A1 (de) 1994-02-10
ES2082653T3 (es) 1996-03-16
JP3325573B2 (ja) 2002-09-17
WO1994003723A1 (fr) 1994-02-17
JPH07500171A (ja) 1995-01-05
DE59301468D1 (de) 1996-02-29
US5488940A (en) 1996-02-06

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