EP0425953A2 - Contactless ignition device for combustion engines - Google Patents

Contactless ignition device for combustion engines Download PDF

Info

Publication number
EP0425953A2
EP0425953A2 EP19900120164 EP90120164A EP0425953A2 EP 0425953 A2 EP0425953 A2 EP 0425953A2 EP 19900120164 EP19900120164 EP 19900120164 EP 90120164 A EP90120164 A EP 90120164A EP 0425953 A2 EP0425953 A2 EP 0425953A2
Authority
EP
European Patent Office
Prior art keywords
ignition
spark
ignition system
internal combustion
spark plug
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.)
Granted
Application number
EP19900120164
Other languages
German (de)
French (fr)
Other versions
EP0425953B1 (en
EP0425953A3 (en
Inventor
Martin Költer
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP0425953A2 publication Critical patent/EP0425953A2/en
Publication of EP0425953A3 publication Critical patent/EP0425953A3/en
Application granted granted Critical
Publication of EP0425953B1 publication Critical patent/EP0425953B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/02—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors
    • F02P7/03—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors with electrical means
    • F02P7/035—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors with electrical means without mechanical switching means
    • 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 contactless ignition system according to the preamble of claim 1.
  • Such an ignition system is known from DE 29 17 604 C.
  • the two spark plugs are arranged so that one spark plug ignites the mixture in the associated cylinder and the other cylinder is currently in the exhaust cycle. In connection with the combustion products present in this cylinder, the spark plug then acts as a ground connection of the secondary winding of the ignition coil.
  • the ignition spark causes an exhaust slap in the exhaust cycle, since then only a small part of the mixture is actually burned and the ignition spark ignites.
  • the invention has for its object to provide an ignition system of the type mentioned, which is characterized by high reliability and long spark plug life.
  • the switch can in principle be a mechanical switch. However, this is limited in terms of its response and working speed.
  • a high-voltage semiconductor switch in the form of a thyristor is advantageous for modern high-performance internal combustion engines. This does not require any restrictions in its operation and is also suitable for high-speed internal combustion engines.
  • a double spark ignition coil 1 contains a primary winding 2 and a secondary winding 3.
  • the primary winding 2 is controlled by a control unit (not shown) with a power output stage.
  • a spark plug 4 or 5 is connected, which are shown as a spark gap.
  • a thyristor 6 and 7, respectively which are led to a common ground line 10.
  • the control electrodes 8 and 9 of the two thyristors 6 and 7 are guided together with the connection 10 of the ground line 10 and the two connections 11 (terminal 15) and 12 (terminal 1) of the primary winding 2 on a common five-pin connector 13.
  • the two thyristors 6 and 7 are cast with the secondary winding 3 or additionally the core 1 'of the ignition coil 1 and the primary winding 2 to form a compact unit in cast resin.
  • the contactless ignition system for two cylinders of an internal combustion engine shown in the figure it is possible to ignite only the cylinder which is in the work cycle, while an ignition process in the other cylinder is avoided.
  • the thyristor for example the thyristor 6, the associated spark plug 4 of which is located in the cylinder which is currently in the working cycle, is not activated.
  • the ignition energy stored in the secondary winding 3 can discharge via the spark plug 4 and ignite the combustion mixture in the associated cylinder.
  • the thyristor (here 7) which is parallel to the other spark plug (here 5) is driven. This establishes a ground connection of the assigned end of the secondary winding 3 via the thyristor (here 7) and the ground line 10 and short-circuits the spark plug (here 5).
  • the ignition coil 1 can thus only be discharged via one of the two spark plugs (here 4), while the other spark plug is short-circuited.
  • the two spark plugs can be arranged in any cylinders and not only in the cylinders in which a work cycle correlates with an exhaust cycle. Since it is thus possible to switch only one of two spark plugs into effect, this does not result in any narrowing of the ignition angle, since the effect such an ignition system corresponds to an ignition system with single spark ignition.
  • the described structural design results in further advantages with regard to the insulation, since no high-voltage parts or lines are routed to the outside, ie into the plug 13.
  • Another important advantage of the invention is the possible switch-on pulse suppression.
  • a voltage with reverse polarity is generated when the ignition coil is switched on (approx. 1600 V).
  • a diode is therefore also cast in. If, within the scope of the invention, the thyristors are also activated when the ignition system is switched on, the switch-on pulse is derived from ground. As a result, the diode associated with the ignition coil can be omitted.

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

In the case of a breakerless ignition system for internal combustion engines with a double spark ignition coil, to each of both sides of the secondary windings of which a spark plug is connected for different cylinders of the internal combustion engine, a switch is provided parallel to the spark plugs which is opened or closed, depending on whether ignition is intended to occur in the associated cylinder or not. In this way a spark-over is permitted in only one of the two spark plugs.

Description

Die Erfindung bezieht sich auf eine kontaktlose Zünd­anlage nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a contactless ignition system according to the preamble of claim 1.

Eine derartige Zündanlage ist aus der DE 29 17 604 C bekannt. Die beiden Zündkerzen sind dabei so angeordnet, daß die eine Zündkerze das Gemisch in dem zugehörigen Zylinder zündet und sich der andere Zylinder gerade im Auspufftakt befindet. In Verbindung mit den in diesem Zylinder vorliegenden Verbrennungsprodukten wirkt die Zündkerze dann als Masseverbindung der Sekundärwicklung der Zündspule. Dies alles gilt jedoch nur bei einer Brennkraftmaschine, die sich zumindest annähernd auf ihrer Betriebstemperatur befindet. Bei einer kalten Brennkraftmaschine kommt es durch den Zündfunken im Ausstoßtakt zu einem Auspuffpatschen, da dann nur ein kleiner Teil des Gemischs bereits tatsächlich verbrannt ist und durch den Zündfunken eine Zündung erfolgt.Such an ignition system is known from DE 29 17 604 C. The two spark plugs are arranged so that one spark plug ignites the mixture in the associated cylinder and the other cylinder is currently in the exhaust cycle. In connection with the combustion products present in this cylinder, the spark plug then acts as a ground connection of the secondary winding of the ignition coil. However, all of this only applies to an internal combustion engine that is at least approximately at its operating temperature. In a cold internal combustion engine, the ignition spark causes an exhaust slap in the exhaust cycle, since then only a small part of the mixture is actually burned and the ignition spark ignites.

Weitere Nachteile der bekannten Zündanlage bestehen in dem hohen Zündkerzenverschleiß durch die gegenüber konventionellen Brennkraftmaschinen mit Einzelzündung vorliegendene Verdoppelung der Zündungen sowie in der Einengung des Zündwinkels, die sich besonders bei hoher Drehzahl der Brennkraftmaschine aus der Forderung nach Funktionssicherheit ergibt. Diese Forderung gewinnt besonders im Hinblick auf den zunehmenden Einsatz von Katalysatoren zur Abgasnachbehandlung verstärkte Bedeu­tung.Further disadvantages of the known ignition system consist in the high spark plug wear due to the doubling of the ignitions compared to conventional internal combustion engines with single ignition, and in the narrowing of the ignition angle, which arises particularly at high engine speed from the requirement for functional reliability. This demand wins especially in view of the increasing use of catalysts for exhaust gas aftertreatment.

Der Erfindung liegt die Aufgabe zugrunde, eine Zündan­lage der eingangs genannten Art zu schaffen, die sich durch hohe Funktionssicherheit und lange Zündkerzen-­Standzeit auszeichnet.The invention has for its object to provide an ignition system of the type mentioned, which is characterized by high reliability and long spark plug life.

Die Lösung dieser Aufgabe besteht gemäß der Erfindung in den Kennzeichenmerkmalen des Patentanspruchs 1.According to the invention, this object is achieved in the characterizing features of patent claim 1.

Durch den zu jeder Zündkerze parallelen Schalter wird dann, wenn ein Zündvorgang nicht stattfinden soll, d. h. beim eingangs genannten Fall im Ausstoßtakt, eine wirksame Masseverbindung hergestellt und ein Funkenüber­schlag über die jeweilige Zündkerze vermieden. Damit unterbleibt das Auspuffpatschen. Da es somit nur dann tatsächlich zu einem Funkenüberschlag kommt, wenn eine Zündung im zugehörigen Zylinder gewünscht ist, wird die Standzeit der Zündkerze gegenüber der bekannten Zünd­anlage erhöht. Für den Verbrennungsvorgang unerwünschte Zweitzündungen der Zündkerze werden vermieden. Die Standzeit der Zündkerze entspricht somit der bei einer Zündanlage mit Einzelzündung.By the switch in parallel with each spark plug, when an ignition process is not to take place, i. H. in the case mentioned in the exhaust stroke, an effective earth connection is established and a sparkover over the respective spark plug is avoided. So there is no exhaust splashing. Since a sparkover occurs only when ignition in the associated cylinder is desired, the service life of the spark plug is increased compared to the known ignition system. Unwanted secondary ignitions of the spark plug for the combustion process are avoided. The service life of the spark plug thus corresponds to that of an ignition system with single ignition.

Bei dem Schalter kann es sich im Prinzip um einen mechanischen Schalter handeln. Dieser ist jedoch hin­sichtlich seiner Ansprech- und Arbeitsgeschwindigkeit begrenzt. Für moderne Hochleistungs-Brennkraftmaschinen ist demgegenüber ein Hochspannungs-Halbleiterschalter in Form eines Thyristors vorteilhaft. Dieser erfordert keinerlei Beschränkungen in seiner Arbeitsweise und ist auch für Brennkraftmaschinen mit hoher Drehzahl geeig­net.The switch can in principle be a mechanical switch. However, this is limited in terms of its response and working speed. In contrast, a high-voltage semiconductor switch in the form of a thyristor is advantageous for modern high-performance internal combustion engines. This does not require any restrictions in its operation and is also suitable for high-speed internal combustion engines.

Konstruktiv und schaltungstechnisch besonders einfache Ausführungen der erfindungsgemäßen Zündanlage mit einem Hochspannungs-Halbleiterschalter sind in den Patentan­sprüchen 3 bis 5 angegeben. Sie bieten den Vorteil eines einfachen schaltungstechnischen Aufbaus (Patentanspruch 3), die Vermeidung einer außerhalb der Zündspule vor­liegenden Hochspannung (Patentanspruch 4) sowie die Möglichkeit, die auf Niederspannung liegenden Leitungen der Zündspule auf einfache Weise anzuschließen (Patent­anspruch 5). Die damit erzielbaren Gewichts- und Kosten­reduktionen ergeben sich dabei von selbst.Structural and circuitry particularly simple designs of the ignition system according to the invention with a high-voltage semiconductor switch are specified in claims 3 to 5. They offer the advantage of a simple circuit design (claim 3), the avoidance of a high voltage outside the ignition coil (claim 4) and the possibility of connecting the low-voltage lines of the ignition coil in a simple manner (claim 5). The weight and cost reductions that can be achieved with this result automatically.

In der einzigen Figur ist ein Ausführungsbeispiel der Erfindung dargestellt.In the single figure, an embodiment of the invention is shown.

Eine Doppelfunken-Zündspule 1 enthält eine Primärwick­lung 2 und eine Sekundärwicklung 3. Die Primärwicklung 2 ist über ein nicht dargestelltes Steuergerät mit einer Leistungsendstufe gesteuert.A double spark ignition coil 1 contains a primary winding 2 and a secondary winding 3. The primary winding 2 is controlled by a control unit (not shown) with a power output stage.

Zu beiden Seiten der Sekundärwicklung 3 ist jeweils eine Zündkerze 4 bzw. 5 angeschlossen, die als Funkenstrecke dargestellt sind. Parallel zu den Zündkerzen 4 und 5 befindet sich jeweils ein Thyristor 6 bzw. 7, die auf eine gemeinsame Masseleitung 10 geführt sind. Die Steuerelektroden 8 bzw. 9 der beiden Thyristoren 6 bzw. 7 sind zusammen mit dem Anschluß 10 der Masseleitung 10 sowie den beiden Anschlüssen 11 (Klemme 15) bzw. 12 (Klemme 1) der Primärwicklung 2 auf einen gemeinsamen fünfpoligen Stecker 13 geführt. Die beiden Thyristoren 6 und 7 sind mit der Sekundärwicklung 3 bzw. zusätzlich dem Kern 1′ der Zündspule 1 und der Primärwicklung 2 zu einer kompakten Baueinheit in Gießharz vergossen.On both sides of the secondary winding 3, a spark plug 4 or 5 is connected, which are shown as a spark gap. In parallel to the spark plugs 4 and 5 there is a thyristor 6 and 7, respectively, which are led to a common ground line 10. The control electrodes 8 and 9 of the two thyristors 6 and 7 are guided together with the connection 10 of the ground line 10 and the two connections 11 (terminal 15) and 12 (terminal 1) of the primary winding 2 on a common five-pin connector 13. The two thyristors 6 and 7 are cast with the secondary winding 3 or additionally the core 1 'of the ignition coil 1 and the primary winding 2 to form a compact unit in cast resin.

Mit der in der Figur gezeigten kontaktlosen Zündanlage für zwei Zylinder einer Brennkraftmaschine ist es möglich, nur den Zylinder zu zünden, der sich im Ar­beitstakt befindet, während ein Zündvorgang im anderen Zylinder vermieden wird. Hierzu wird der Thyristor, beispielsweise der Thyristor 6, dessen zugehörige Zündkerze 4 in dem Zylinder liegt, der sich gerade im Arbeitstakt befindet, nicht angesteuert. Die in der Sekundärwicklung 3 gespeicherte Zündenergie kann sich über die Zündkerze 4 entladen und im zugehörigen Zylin­der das Verbrennungsgemisch zünden.With the contactless ignition system for two cylinders of an internal combustion engine shown in the figure, it is possible to ignite only the cylinder which is in the work cycle, while an ignition process in the other cylinder is avoided. For this purpose, the thyristor, for example the thyristor 6, the associated spark plug 4 of which is located in the cylinder which is currently in the working cycle, is not activated. The ignition energy stored in the secondary winding 3 can discharge via the spark plug 4 and ignite the combustion mixture in the associated cylinder.

Gleichzeitig wird der zu der anderen Zündkerze (hier 5) parallele Thyristor (hier 7) angesteuert. Dieser stellt eine Masseverbindung des zugeordneten Endes der Sekun­därwicklung 3 über den Thyristor (hier 7) und die Masseleitung 10 her und schließt die Zündkerze (hier 5) kurz. Damit kann die Entladung der Zündspule 1 nur über eine der beiden Zündkerzen (hier 4) erfolgen, während die andere Zündkerze kurzgeschlossen ist.At the same time, the thyristor (here 7) which is parallel to the other spark plug (here 5) is driven. This establishes a ground connection of the assigned end of the secondary winding 3 via the thyristor (here 7) and the ground line 10 and short-circuits the spark plug (here 5). The ignition coil 1 can thus only be discharged via one of the two spark plugs (here 4), while the other spark plug is short-circuited.

Es ist damit möglich, auch bei einer Zündanlage mit Doppelfunken-Zündspule die beiden Zündkerzen nur dann zu aktivieren, wenn dies zum Zünden des Gemischs im zuge­hörigen Zylinder erforderlich ist. Da es somit möglich ist, eine Zündung durch eine der beiden Zündkerzen wirksam zu unterdrücken, ergeben sich dadurch erhebliche Vorteile gegenüber konventionellen Doppelfunken-Zünd­spulen.It is therefore possible to activate the two spark plugs only in an ignition system with a double spark ignition coil if this is necessary to ignite the mixture in the associated cylinder. Since it is thus possible to effectively suppress ignition by one of the two spark plugs, this results in considerable advantages over conventional double-spark ignition coils.

Die beiden Zündkerzen können in beliebigen Zylindern angeordnet sein und nicht nur in den Zylindern, bei denen ein Arbeits- mit einem Ausstoßtakt korreliert. Da es damit möglich ist, von zwei Zündkerzen jeweils nur eine wirksam zu schalten, ergeben sich dadurch auch keinerlei Einengungen des Zündwinkels, da die Wirkung einer derartigen Zündanlage der einer Zündanlage mit Einzelfunken-Zündung entspricht. Durch den beschriebenen konstruktiven Aufbau ergeben sich weitere Vorteile hinsichtlich der Isolierung, da nach außen, d. h. in den Stecker 13 keinerlei hochspannungsführende Teile bzw. Leitungen geführt sind.The two spark plugs can be arranged in any cylinders and not only in the cylinders in which a work cycle correlates with an exhaust cycle. Since it is thus possible to switch only one of two spark plugs into effect, this does not result in any narrowing of the ignition angle, since the effect such an ignition system corresponds to an ignition system with single spark ignition. The described structural design results in further advantages with regard to the insulation, since no high-voltage parts or lines are routed to the outside, ie into the plug 13.

Ein weiterer wesentlicher Vorteil der Erfindung ist die mögliche Einschaltimpulsunterdrückung. Bei kontaktlosen Zündanlagen mit direkter Verbindung zur Zündkerze (ohne Vorfunkenstrecke) wird beim Einschalten der Zündspule eine Spannung mit umgekehrter Polarität erzeugt (ca. 1600 V). Bei bekannten Einzelzündspulen ist deshalb eine Diode mit eingegossen. Werden im Rahmen der Erfindung die Thyristoren auch beim Einschalten der Zündanlage angesteuert, so wird der Einschaltimpuls gegen Masse abgeleitet. Dadurch kann die der Zündspule zugeordnete Diode entfallen.Another important advantage of the invention is the possible switch-on pulse suppression. In contactless ignition systems with a direct connection to the spark plug (without spark gap), a voltage with reverse polarity is generated when the ignition coil is switched on (approx. 1600 V). In known individual ignition coils, a diode is therefore also cast in. If, within the scope of the invention, the thyristors are also activated when the ignition system is switched on, the switch-on pulse is derived from ground. As a result, the diode associated with the ignition coil can be omitted.

Claims (5)

1. Kontaktlose Zündanlage für Brennkraftmaschinen mit einer Doppelfunken-Zündspule, an deren Sekundär­wicklungen beidseitig jeweils eine Zündkerze für unterschiedliche Zylinder der Brennkraftmaschine angeschlossen ist, gekennzeichnet durch je einen parallel zu den Zündkerzen 4, 5 liegenden Schalter 6, 7, der dann geöffnet bzw. geschlossen ist, wenn in dem zugehörigen Zylinder eine Zündung erfolgen bzw. nicht erfolgen soll.1.Contactless ignition system for internal combustion engines with a double spark ignition coil, to the secondary windings of which a spark plug for different cylinders of the internal combustion engine is connected on each side, characterized by a switch 6, 7 which is parallel to the spark plugs 4, 5 and which then opens or closes is when there is or should not be ignition in the associated cylinder. 2. Zündanlage nach Anspruch 1, dadurch gekennzeichnet, daß der Schalter ein Thyristor 6, 7 ist.2. Ignition system according to claim 1, characterized in that the switch is a thyristor 6, 7. 3. Zündanlage nach Anspruch 2, dadurch gekennzeichnet, daß die beiden Thyristoren 6, 7 auf eine gemeinsame Masseleitung 10 geführt sind.3. Ignition system according to claim 2, characterized in that the two thyristors 6, 7 are guided on a common ground line 10. 4. Zündanlage nach Anspruch 2 oder 3, dadurch gekenn­zeichnet, daß die beiden Thyristoren 6, 7 mit der Zündspule 1, 2, 3 zu einer Einheit vergossen sind.4. Ignition system according to claim 2 or 3, characterized in that the two thyristors 6, 7 are cast with the ignition coil 1, 2, 3 to form a unit. 5. Zündanlage nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß die Steuerelektroden 8, 9 der beiden Thyristoren 6, 7 und die beiden Anschlüsse 11, 12 der Primärwicklung 2 auf einen gemeinsamen Stecker 13 geführt sind.5. Ignition system according to one of claims 2 to 4, characterized in that the control electrodes 8, 9 of the two thyristors 6, 7 and the two connections 11, 12 of the primary winding 2 are guided on a common connector 13.
EP90120164A 1989-10-31 1990-10-20 Contactless ignition device for combustion engines Expired - Lifetime EP0425953B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3936174 1989-10-31
DE3936174A DE3936174A1 (en) 1989-10-31 1989-10-31 CONTACTLESS IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINES

Publications (3)

Publication Number Publication Date
EP0425953A2 true EP0425953A2 (en) 1991-05-08
EP0425953A3 EP0425953A3 (en) 1992-07-29
EP0425953B1 EP0425953B1 (en) 1995-11-22

Family

ID=6392552

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90120164A Expired - Lifetime EP0425953B1 (en) 1989-10-31 1990-10-20 Contactless ignition device for combustion engines

Country Status (2)

Country Link
EP (1) EP0425953B1 (en)
DE (2) DE3936174A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994013951A1 (en) * 1992-12-16 1994-06-23 Robert Bosch Gmbh Method for cylinder identification in an internal combustion engine when idling

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5430325A (en) * 1977-08-10 1979-03-06 Hitachi Ltd Dual ignition system
GB2064227A (en) * 1979-11-22 1981-06-10 Hitachi Ltd Ignition coil for an internal combustion engine
DE3108635A1 (en) * 1980-03-07 1982-01-07 Hitachi, Ltd., Tokyo DISTRIBUTOR-FREE IGNITION SYSTEM WITH OVERVOLTAGE ABSORBER AND DEVICE EQUIPPED WITH IT

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2723832A1 (en) * 1977-05-26 1978-12-07 Bosch Gmbh Robert Ignition system for IC engines - has two discharge circuits controlled by two signals, both controlling only one charging circuit
DE3170464D1 (en) * 1980-02-21 1985-06-20 Siemens Ag Ignition system for internal-combustion engines
JPS57206776A (en) * 1981-06-16 1982-12-18 Nissan Motor Co Ltd Plasma ignition device
DE3505988A1 (en) * 1985-02-21 1986-08-21 Robert Bosch Gmbh, 7000 Stuttgart Ignition device intended for an internal-combustion engine
JPH0713505B2 (en) * 1985-06-05 1995-02-15 日産自動車株式会社 Electronic ignition controller for engine
FR2606833B1 (en) * 1986-11-18 1989-02-24 Peugeot IGNITION DEVICE FOR A COMBUSTION ENGINE
JPH03500321A (en) * 1987-09-18 1991-01-24 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング high voltage switch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5430325A (en) * 1977-08-10 1979-03-06 Hitachi Ltd Dual ignition system
GB2064227A (en) * 1979-11-22 1981-06-10 Hitachi Ltd Ignition coil for an internal combustion engine
DE3108635A1 (en) * 1980-03-07 1982-01-07 Hitachi, Ltd., Tokyo DISTRIBUTOR-FREE IGNITION SYSTEM WITH OVERVOLTAGE ABSORBER AND DEVICE EQUIPPED WITH IT

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 3, Nr. 53 (M-58), 8. Mai 1979; & JP-A-54 30 325 (HITACHI SEISAKUSHO K.K.) 03-06-1979 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994013951A1 (en) * 1992-12-16 1994-06-23 Robert Bosch Gmbh Method for cylinder identification in an internal combustion engine when idling
US5572973A (en) * 1992-12-16 1996-11-12 Robert Bosch Gmbh Method for cylinder identification in an internal combustion engine when idling

Also Published As

Publication number Publication date
DE3936174A1 (en) 1991-05-02
EP0425953B1 (en) 1995-11-22
EP0425953A3 (en) 1992-07-29
DE59009899D1 (en) 1996-01-04

Similar Documents

Publication Publication Date Title
DE1234446B (en) Ignition system for operating internal combustion engines
DE3309256A1 (en) DEVICE FOR STARTING A DIESEL ENGINE WITH PLASMA SPARK PLUGS
EP0157006B1 (en) Ignition device for an internal-combustion engine comprising a plurality of plugs without a distributor
DE2934573A1 (en) IGNITION SYSTEM
DE2823391C2 (en)
DE2846425C2 (en)
DE3513422C2 (en) Ignition system for internal combustion engines
DE1414588B2 (en) IGNITION DEVICE FOR COMBUSTION MACHINERY
EP0425953B1 (en) Contactless ignition device for combustion engines
DE3438009A1 (en) IGNITION SYSTEM FOR A FIVE-CYLINDER FOUR-STOCK COMBUSTION ENGINE
DE1182473B (en) Distributor and breakerless ignition system for multi-cylinder internal combustion engines
DE4313172A1 (en) Ignition system for internal combustion engines with double ignition
EP0200196A2 (en) Contactless ignition device
DE60012073T2 (en) Ignition system for a vehicle-driving internal combustion engine
DE4323429C2 (en) Ignition system for an internal combustion engine with several cylinders
DE19508268C2 (en) Ignition coil for a distributorless ignition system of an internal combustion engine
DE3546126C2 (en)
DE3939100C2 (en) Ignition system for motor vehicles
DE3822794A1 (en) Distributorless capacitor ignition system for internal combustion engines
DE19927960A1 (en) Ignition coil circuitry for directly fuel-injected engine
DE2723832A1 (en) Ignition system for IC engines - has two discharge circuits controlled by two signals, both controlling only one charging circuit
DE725624C (en) Battery ignition system
DE608062C (en) Electric ignition device
DE3137997A1 (en) Ignition device for internal combustion engines
DE3742321C2 (en) Compaction control device

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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE ES FR GB IT SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE ES FR GB IT SE

17P Request for examination filed

Effective date: 19920910

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT

17Q First examination report despatched

Effective date: 19940727

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT SE

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;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.SCRIBED TIME-LIMIT

Effective date: 19951122

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19951122

Ref country code: GB

Effective date: 19951122

Ref country code: FR

Effective date: 19951122

REF Corresponds to:

Ref document number: 59009899

Country of ref document: DE

Date of ref document: 19960104

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19960222

EN Fr: translation not filed
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19951122

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
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19971023

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990803