EP0848161B1 - Système d'allumage à bobines inductives pour moteur - Google Patents

Système d'allumage à bobines inductives pour moteur Download PDF

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Publication number
EP0848161B1
EP0848161B1 EP97117835A EP97117835A EP0848161B1 EP 0848161 B1 EP0848161 B1 EP 0848161B1 EP 97117835 A EP97117835 A EP 97117835A EP 97117835 A EP97117835 A EP 97117835A EP 0848161 B1 EP0848161 B1 EP 0848161B1
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EP
European Patent Office
Prior art keywords
ignition
inductive coil
ignition system
spark
coil
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
EP97117835A
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German (de)
English (en)
Other versions
EP0848161A3 (fr
EP0848161A2 (fr
Inventor
Ulrich Bentel
Helmut Schmied
Thomas Capouschek
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 EP0848161A2 publication Critical patent/EP0848161A2/fr
Publication of EP0848161A3 publication Critical patent/EP0848161A3/fr
Application granted granted Critical
Publication of EP0848161B1 publication Critical patent/EP0848161B1/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
    • 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

Definitions

  • the invention relates to an inductive coil ignition system for an engine with at least one ignition coil, the one powered by a voltage source, primary winding having two connections and a secondary winding which also has two connections includes.
  • Inductive coil ignition systems for engines, in particular Automotive engines are well known.
  • Ignition coil used in such systems has one Primary winding on periodically with a primary current is applied. This current is used for Build up a magnetic field in the coil that acts as an energy store should serve. At the desired ignition point the primary current is interrupted. The in Magnetic field stored energy then ensures a steep rise in voltage on the secondary winding with the result of a flashover in the spark plug and a correspondingly steep rise of the secondary current. The one stored in the coil magnetic energy flows steadily as electrical Energy in the sparks.
  • the ion current measurement method Since the ion current measurement method has expired Requires ignition sparks, it is in the known Ignition systems where the secondary current is slow subsides, cannot be used. For example, to record the tendency of an engine to knock rather, other more complex measuring systems are necessary.
  • This patent describes an inductive coil ignition system for an engine, with at least one ignition coil one that is powered by a voltage source and has two connections Primary winding and a secondary winding, which also has two connections comprises, wherein the secondary winding with at least one spark plug is connected to a circuit device which is parallel to the primary winding is arranged and the two connections depending on a control signal connects the primary winding to end the spark, with a control circuit for generating the control signal and with one Ion current measuring device connected to the secondary winding, the ion current measuring device after the ignition spark has ended one over the spark plug flowing ion current after the ignition spark goes out.
  • the inductive coil ignition system with the features of claim 1 has the advantage that enables the use of an ion current measuring method, so that an affordable overall solution is achievable.
  • That parallel to the primary winding arranged switching element is about a control input from one in a special Control circuit generated control signal driven.
  • FIG. 1 shows an inductive coil ignition system 1, which is used to control a spark plug 3, the for example, assigned to a cylinder of a motor vehicle engine is.
  • Essential part of such Coil ignition system is a coil 5, the one Has primary winding 7 and a secondary winding 9.
  • a connection side 11 of the primary winding 7 is on the positive pole of a DC voltage source, preferably one battery connected, the other Terminal 13 to the collector of a transistor T2, whose emitter is grounded.
  • the transistor T2 is preferably a triple Darlington transistor.
  • the base of the transistor An ignition signal A is applied to T2.
  • Terminal 15 of the secondary winding 9 On the secondary side of the coil 5 is a first one Terminal 15 of the secondary winding 9 with one pole connected to the spark plug, the other pole of which is grounded lies.
  • the Anode is connected to ground.
  • a switching element is parallel to the primary winding 7 19, for example a thyristor, whose one terminal 21 with the terminal 13 and whose second connection 23 with the first connection 11 of the primary winding is connected.
  • a Control input 25 of the switching element 19 becomes a control signal supplied by a drive circuit 27 is generated.
  • the control circuit 27 is controlled via a control signal B.
  • An ion current measuring device 31 is assigned to the secondary side of the coil 5 and measures an ion current flowing over the candle after the ignition spark has gone out. On the basis of this measured value, it is possible to draw conclusions about the combustion process.
  • the ion current measuring device comprises a series circuit comprising a measuring resistor R M and a diode D2, the anode of this diode being connected to the resistor.
  • the other terminal of the measuring resistor R M is connected to a measuring voltage U M , while the cathode of the diode D2 is in electrical connection with the second terminal 17 of the secondary winding 9.
  • the voltage drop across the measuring resistor R M is fed to a measuring amplifier, preferably an operational amplifier, which generates a difference signal S and feeds it to an evaluation device.
  • a measuring amplifier preferably an operational amplifier
  • the ignition signal A is set to a voltage level "1" (for example 5 V) at a time t1, with the result that the transistor T2 becomes conductive.
  • a primary current I prim thus flows . of the battery voltage U asked via the primary winding 7 and the collector-emitter connection of the transistor 2 to ground. Due to the inductance of the coil 5, the current I prim increases. exponentially.
  • This primary current I prim serves to build up a magnetic field in the coil 5, which is to provide the energy necessary for the ignition.
  • the ignition signal A is set to the potential “0” (for example 0 V).
  • the transistor T2 falls back into the blocking state with the result that the primary current can no longer flow to ground. As can be clearly seen from the diagram, it falls back to the value 0.
  • the control signal B having a "1" level is set to a "0" level at a time t2.
  • the control circuit 27 thus switches the switching element 19 into the conductive state via the control input 25. This creates an electrical connection between the two terminals 11, 13 of the primary winding 7, so that a further reduction of the magnetic energy stored in the coil via the primary current I prim. he follows. In the diagram according to FIG. 2 it can be seen that the primary current I prim. has risen significantly at time t2 and slowly decays over time until the stored magnetic energy has dropped to the value 0.
  • the secondary current drops I sec. to the value 0.
  • a measuring voltage U M is switched on in the ion current measuring device, which generates a current flowing via the measuring resistor R M , the diode D2, the secondary winding 9 and the candle 3.
  • the level of this ion current depends in particular on the combustion conditions within the cylinder assigned to the candle 3.
  • the current value itself can be determined by tapping the voltage drop occurring at the measuring resistor R M.
  • Figure 3 shows an ignition system that consists of several Ignition coils is built. Such systems are used in multi-cylinder engines, whereby For example, an ignition coil is assigned to each cylinder is.
  • the ion current measuring device 31 is in each case with all connections 17 of the secondary windings 9 of the Coil ignition systems 1.1 to 1.3 connected so that structural savings have also been achieved here.
  • coil ignition systems can be build up more than those shown in Figure 3 have three individual coils.
  • the coils themselves can as single spark or double spark coils be trained.
  • the control circuit 27 comprises a transistor T1, the emitter of which is connected to ground.
  • the collector of the transistor T1 is connected to the battery voltage U bat via a parallel circuit comprising a resistor R1 and an RC element.
  • the RC element consists of a resistor R2 and a capacitor C1, one connection of the capacitor being connected to the collector.
  • the control signal to be supplied to the control connection 25 is tapped at a node 29 between the resistor R2 and the capacitor C1.
  • control circuit it is possible in the control circuit to provide a transistor for the switching element, the base of which is supplied with a control signal becomes.
  • the emitter of the transistor is grounded, while the collector is connected in parallel from a resistor and an RC element to the positive tension.
  • the control signal for the switching element is then at the connection node of resistor and capacitor of the RC element tapped.

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)

Claims (9)

  1. Système d'allumage inductif à bobine pour un moteur, avec au moins une bobine d'allumage qui comprend un enroulement primaire alimenté par une source de tension et présentant deux raccordements ainsi qu'un enroulement secondaire présentant également deux raccordements, l'enroulement secondaire (9) étant relié à au moins une bougie d'allumage (3), avec un dispositif de commutation (19) qui est disposé parallèlement à l'enroulement primaire (7) et qui, en fonction d'un signal de commande, relie l'un à l'autre les deux raccordements (11, 13) de l'enroulement primaire (7) pour faire cesser l'étincelle d'allumage, avec un circuit d'amorçage (27) destiné à produire le signal de commande et avec un dispositif de mesure à flux ionique (31) raccordé à l'enroulement secondaire (9),
    le dispositif de mesure à flux ionique (31) appliquant une tension de mesure UM à l'enroulement secondaire (9) après que l'étincelle d'allumage a cessé et mesurant un flux ionique qui circule à travers la bougie d'allumage (3) après que l'étincelle d'allumage est éteinte.
  2. Système d'allumage inductif à bobine selon la revendication 1,
    caractérisé en ce que
    le circuit d'amorçage (27) produit le signal d'amorçage nécessaire au dispositif de connexion (19) et présente une entrée de commande (B) au moyen de laquelle le circuit d'amorçage (27) est amorcé.
  3. Système d'allumage inductif à bobine selon l'une des revendications précédentes,
    caractérisé en ce que
    l'enroulement primaire (7) peut être relié à une source de tension (Ubat) au moyen d'un transistor de Darlington (T2).
  4. Système d'allumage inductif à bobine selon l'une des revendications précédentes,
    caractérisé en ce que
    l'enroulement secondaire (9) est relié à la masse avec un raccordement par l'intermédiaire de la bougie d'allumage (3) et à la masse avec un deuxième raccordement (17) par l'intermédiaire d'une diode (D1).
  5. Système d'allumage inductif à bobine selon la revendication 4,
    caractérisé en ce que
    le dispositif de mesure à flux ionique (31) présente un montage en série composé d'une diode (D2) et d'une résistance de mesure de courant (RM) dont l'une des extrémités est raccordée à l'enroulement secondaire et dont l'autre extrémité l'est à une tension de mesure (UM).
  6. Système d'allumage inductif à bobine selon la revendication 5,
    caractérisé en ce qu'
    une tension appliquée à la résistance de mesure (RM) peut être saisie par un amplificateur de mesure.
  7. Système d'allumage inductif à bobine selon l'une des revendications précédentes,
    caractérisé en ce que
    pour un moteur à plusieurs cylindres on prévoit de façon correspondante plusieurs bobines d'allumage (5) et le dispositif de connexion (19) est associé à toutes les bobines d'allumage (5).
  8. Système d'allumage inductif à bobine selon la revendication 7,
    caractérisé en ce que
    le deuxième raccordement (13) de chaque enroulement primaire (7) est relié au raccordement (21) de l'élément de connexion (19) par l'intermédiaire d'une diode (35).
  9. Système d'allumage inductif à bobine selon l'une des revendications précédentes,
    caractérisé en ce que
    la bobine d'allumage (5) est conçue en tant que bobine à une seule étincelle ou à double étincelle.
EP97117835A 1996-12-16 1997-10-15 Système d'allumage à bobines inductives pour moteur Expired - Lifetime EP0848161B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19652267A DE19652267A1 (de) 1996-12-16 1996-12-16 Induktives Spulenzündsystem für einen Motor
DE19652267 1996-12-16

Publications (3)

Publication Number Publication Date
EP0848161A2 EP0848161A2 (fr) 1998-06-17
EP0848161A3 EP0848161A3 (fr) 1999-12-08
EP0848161B1 true EP0848161B1 (fr) 2003-06-11

Family

ID=7814858

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97117835A Expired - Lifetime EP0848161B1 (fr) 1996-12-16 1997-10-15 Système d'allumage à bobines inductives pour moteur

Country Status (3)

Country Link
US (1) US5970965A (fr)
EP (1) EP0848161B1 (fr)
DE (2) DE19652267A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19624530A1 (de) * 1996-06-20 1998-01-02 Bosch Gmbh Robert Schaltungsanordnung einer Zündendstufe, insbesondere für eine Zündschaltung eines Kraftfahrzeugs
US6131555A (en) * 1998-04-20 2000-10-17 Cummins Engine Company, Inc. System for controlling ignition energy of an internal combustion engine
DE19839868C1 (de) * 1998-09-02 2000-02-10 Stiebel Eltron Gmbh & Co Kg Verfahren und Schaltung zum Erfassen des Luft-Kraftstoff-Verhältnisses einer Verbrennungsphase einer Verbrennungskraftmaschine
DE19845400A1 (de) * 1998-10-02 1999-12-16 Daimler Chrysler Ag Hochspannungstransistorspulenzündung mit Stromregeleinrichtung und Ionenstrommesseinrichtung
DE19849258A1 (de) 1998-10-26 2000-04-27 Bosch Gmbh Robert Verfahren und Vorrichtung zur Energieregelung an Zündsystemen mit primärseitigem Kurzschlußschalter
EP1063426B1 (fr) * 1999-06-25 2008-07-02 Ngk Spark Plug Co., Ltd Ensemble d'allumage pour moteur à combustion interne
DE19933969B4 (de) * 1999-07-20 2010-12-02 Robert Bosch Gmbh Bidirektionales Halbleiterbauelement und Verwendung desselben
JP4462747B2 (ja) * 2000-10-31 2010-05-12 日本特殊陶業株式会社 内燃機関用点火装置
JP4528469B2 (ja) * 2000-12-21 2010-08-18 日本特殊陶業株式会社 内燃機関用点火装置
DE10155972A1 (de) * 2001-11-14 2003-05-22 Bosch Gmbh Robert Zündanlage und Verfahren zum Betreiben einer Zündanlage
SE536577C2 (sv) * 2012-04-13 2014-03-04 Sem Ab Tändsystem innefattande en mätanordning anordnad att ge mätsignaler till en förbränningsmotors styrsystem
KR102557707B1 (ko) * 2015-08-14 2023-07-19 보드 오브 트러스티즈 오브 미시건 스테이트 유니버시티 제1 인덕턴스의 단락에 의한 스파크 플러그 코일의 이온화 검출기
JP6342026B1 (ja) * 2017-02-14 2018-06-13 三菱電機株式会社 内燃機関の燃焼状態検出装置

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
FR2393948A1 (fr) 1977-06-10 1979-01-05 Sev Marchal Dispositif pour la distribution de la tension d'allumage d'un moteur a combustion interne
US4270509A (en) * 1978-03-10 1981-06-02 Briggs & Stratton Corporation Breakerless ignition system
JPS56167852A (en) 1980-05-29 1981-12-23 Nippon Soken Inc Ignition apparatus for internal combustion engine
DE4038440C2 (de) * 1990-12-01 1994-09-22 Telefunken Microelectron Elektronisches Zündsystem für Brennkraftmaschinen
US5207208A (en) * 1991-09-06 1993-05-04 Combustion Electromagnetics Inc. Integrated converter high power CD ignition
JPH05149229A (ja) * 1991-11-26 1993-06-15 Mitsubishi Electric Corp 内燃機関のイオン電流検出装置
US5337716A (en) * 1992-02-04 1994-08-16 Mitsubishi Denki Kabushiki Kaisha Control apparatus for internal combustion engine
EP0806566B1 (fr) * 1992-09-11 2002-04-03 Ngk Spark Plug Co., Ltd Détecteur de ratés d'allumage utilisant des méthodes différentes pour les régimes hauts et bas du moteur
FR2712934B1 (fr) * 1993-11-22 1996-01-26 Marelli Autronica Procédé et dispositif d'allumage à bobine, pour moteur à allumage commandé.
US5536340A (en) 1994-01-26 1996-07-16 Breed Automotive Technology, Inc. Gas generating composition for automobile airbags
JP3192541B2 (ja) * 1994-01-28 2001-07-30 三菱電機株式会社 内燃機関用失火検出回路
DE19524541C1 (de) * 1995-07-05 1996-12-05 Telefunken Microelectron Schaltungsanordnung zur Ionenstrommessung im Verbrennungsraum einer Brennkraftmaschine
JP3176295B2 (ja) 1996-09-03 2001-06-11 トヨタ自動車株式会社 内燃機関の点火装置

Also Published As

Publication number Publication date
EP0848161A3 (fr) 1999-12-08
EP0848161A2 (fr) 1998-06-17
DE59710262D1 (de) 2003-07-17
DE19652267A1 (de) 1998-06-18
US5970965A (en) 1999-10-26

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