DE4115308A1 - Distributorless ignition system for IC engine - has ignition coil with opposite wound split prim. and HV polarising diodes in sec. feeding spark plugs - Google Patents

Distributorless ignition system for IC engine - has ignition coil with opposite wound split prim. and HV polarising diodes in sec. feeding spark plugs

Info

Publication number
DE4115308A1
DE4115308A1 DE19914115308 DE4115308A DE4115308A1 DE 4115308 A1 DE4115308 A1 DE 4115308A1 DE 19914115308 DE19914115308 DE 19914115308 DE 4115308 A DE4115308 A DE 4115308A DE 4115308 A1 DE4115308 A1 DE 4115308A1
Authority
DE
Germany
Prior art keywords
spark plugs
diodes
polarising
engine
prim
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Withdrawn
Application number
DE19914115308
Other languages
German (de)
Inventor
Walter Dipl Ing Streit
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.)
Audi AG
Original Assignee
Audi 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 Audi AG filed Critical Audi AG
Priority to DE19914115308 priority Critical patent/DE4115308A1/en
Publication of DE4115308A1 publication Critical patent/DE4115308A1/en
Withdrawn legal-status Critical Current

Links

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
    • F02P3/0407—Opening or closing the primary coil circuit with electronic switching means
    • F02P3/0435—Opening or closing the primary coil circuit with electronic switching means with semiconductor devices
    • 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
    • F02P3/00—Other installations
    • F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
    • 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

Abstract

A distributorless ignition system for an IC engine comprises a control unit (10) for determining which of a pair of spark plugs (34, 40) is to be energised in an alternate firing cycle via the Darlington transistors (12, 14). The primary coil windings (16, 18) are oppositely wound w.r.t. the centre terminal and d.c. source (20) and generate a corresp. voltage in the secondaray winding (22) of polarity which can promote a current to earth at the terminal (42) through only one of the spark plugs (34, 36) as a result of the polarising h.v. diodes (24, 28). USE/ADVANTAGE - Provides more economically constructed and space and wt. saving device.

Description

Die Erfindung betrifft eine verteilerlose Zündanlage für eine Brennkraftmaschine.The invention relates to a distributorless ignition system for an internal combustion engine.

Zum Stand der Technik gehören Zündanlagen mit einer Zündspule für zwei Zündkerzen, die dann beide gleichzei­ tig gezündet werden. Der eine Zündfunke, der sogenannte Arbeitszündfunke, entzündet das im Zylinder befindliche komprimierte Benzin-Luft-Gemisch, wohingegen die andere Zündkerze während des Ausstoßtaktes als Stützfunke ge­ zündet wird, dieser Zündfunke ist überflüssig, wird je­ doch so gelegt, daß er keinerlei Einfluß hat.The state of the art includes ignition systems with a Ignition coil for two spark plugs, which then both at the same time be ignited. One spark, the so-called Working spark, ignites the one in the cylinder compressed gasoline-air mixture, whereas the other Spark plug during the exhaust stroke as a support spark is ignited, this spark is superfluous, ever but placed so that he has no influence.

Eine weitere Alternative im Stand der Technik ist, daß jeder Zündkerze eine eigene Zündspule zugeordnet wird, die jeweils über ein Steuergerät angesteuert werden.Another alternative in the prior art is that each spark plug is assigned its own ignition coil, which are each controlled by a control unit.

Die letztgenannte Lösung ist verhältnismäßig aufwendig und teuer, auch wird das Gewicht der Brennkraftmaschine durch die höhere Anzahl von Zündspule erhöht.The latter solution is relatively complex and expensive, the weight of the internal combustion engine increased by the higher number of ignition coils.

Bei der erstgenannten Lösung mit dem Stützfunken wird in der überflüssigen Zündkerze zusätzliche Zündenergie ver­ braucht. Außerdem müssen Einschränkungen im Zündwinkel­ bereich gemacht werden, damit der Stützfunke zuverlässig kein brennbares Gemisch entzündet.In the former solution with the support spark is in the unnecessary spark plug ver additional ignition energy needs. There must also be restrictions in the ignition angle range are made so that the support spark is reliable no flammable mixture ignites.

Aufgabe der Erfindung ist es, die Vorteile der beiden geschilderten Systeme zu vereinen, ohne die Nachteile in Kauf nehmen zu müssen. The object of the invention is to take advantage of the two unite described systems without the disadvantages in To have to buy.  

Gelöst wird diese Aufgabe durch den Anspruch.This task is solved by the claim.

Erfindungsgemäß ist vorgesehen, daß zwei gegensinnig ge­ wickelte Primärwicklungen in der Zündspule vorhanden sind, die jeweils unterschiedlich gerichtete Spannungen induzieren. Durch die Dioden wird jeweils nur eine der Zündkerzen angesteuert.According to the invention it is provided that two oppositely ge wound primary windings present in the ignition coil are each differently directed voltages induce. Due to the diodes only one of the Spark plugs controlled.

Im folgenden wird die Erfindung anhand der einzigen Fi­ gur im Detail erläutert.In the following the invention based on the only Fi Gur explained in detail.

In der Figur ist mit dem Bezugszeichen 10 ein Steuerge­ rät für die Erzeugung des Zündfunkens dargestellt. Die­ ses Steuergerät steuert alternativ, je nachdem, welche der beide Zündkerzen gezündet werden soll, einen Dar­ lington-Transistor 12 oder einen Darlington-Transistor 14 an. Die Emitter der Darlington-Transistoren 12 und 14 sind geerdet, die Kollektoren liegen jeweils an einem Ende einer Primärspule 16 bzw. 18, die anderen Enden der Primärspulen 16 und 18 sind verbunden und liegen auf po­ sitiver Spannung 20. Wichtig ist, daß die beiden Spulen 16 und 18 gegensinnig gewickelt sind.In the figure, the reference numeral 10 shows a Steuerge advises for the generation of the ignition spark. This control unit alternatively controls, depending on which of the two spark plugs is to be ignited, a Dar lington transistor 12 or a Darlington transistor 14 . The emitters of the Darlington transistors 12 and 14 are grounded, the collectors are located at one end of a primary coil 16 and 18 , the other ends of the primary coils 16 and 18 are connected and are at positive voltage 20 . It is important that the two coils 16 and 18 are wound in opposite directions.

Stromänderungen in den Spulen 16 oder 18 induzieren in der Sekundärspule 22 eine Hochspannung. Die Sekundärspu­ le 22 ist mit ihrem einen Ende verbunden mit der Anode einer Hochspannungsdiode 24, deren Kathode bei 26 geer­ det ist, und mit dem Pol 30 einer Zündkerze 34, deren anderer Pol 32 geerdet ist. Zwischen den Polen 30 und 32 besteht die Funkenstrecke. Die Erdung ist mit dem Be­ zugszeichen 42 bezeichnet.Current changes in the coils 16 or 18 induce a high voltage in the secondary coil 22 . The secondary coil 22 is connected at one end to the anode of a high-voltage diode 24 , the cathode of which is grounded at 26 , and to the pole 30 of a spark plug 34 , the other pole 32 of which is grounded. The spark gap exists between the poles 30 and 32 . The grounding is designated by the reference numeral 42 .

Das andere Ende der Hochspannungsspule 22 liegt an der Anode einer Diode 28, deren Kathode ebenfalls geerdet ist, sowie an dem Pol 36 einer zweiten Zündkerze 40, de­ ren Pol 38 bei 42 geerdet ist. Zwischen den Polen 36 und 38 besteht eine Funkenstrecke.The other end of the high-voltage coil 22 is connected to the anode of a diode 28 , the cathode of which is also grounded, and to the pole 36 of a second spark plug 40 , the pole 38 of which is grounded at 42 . There is a spark gap between poles 36 and 38 .

Durch die unterschiedliche Einstellung der Primärspule 16 bzw. 18 kann in der Sekundärspule 22 eine Spannung jeweils mit unterschiedlichen Vorzeichen induziert wer­ den. Auf der positiven Seite wird dabei über die Diode 24 bzw. 28 die Seite der Sekundärspule auf Masse gelegt, wohingegen auf der negativen Seite die Hochspannung nicht über die Diode auf Masse abfließen kann und dem­ entsprechend über die Zündkerze 34 bzw. 40 abfließen muß, was zum Aufbau des entsprechenden Zündfunkens führt.Due to the different setting of the primary coil 16 and 18 , a voltage with different signs can be induced in the secondary coil 22 . On the positive side, the side of the secondary coil is connected to ground via the diodes 24 and 28 , whereas on the negative side the high voltage cannot flow to ground via the diode and must flow out accordingly via the spark plugs 34 and 40, respectively leads to the establishment of the corresponding spark.

Es kann somit mit nur einer einzigen Sekundärspule wahl­ weise die Zündkerze 34 oder die Zündkerze 40 angesteuert werden, ohne daß dazu ein Verteiler notwendig wäre.It can thus selectively control the spark plug 34 or the spark plug 40 with only a single secondary coil, without the need for a distributor.

Claims (1)

Verteilerlose Zündanlage mit mindestens einer Einheit zur Ansteuerung von zwei Zündkerzen, wobei jede Einheit zwei gegensinnig gewickelte Primärspulen (16, 18), die einen Anschluß (20) gemeinsam haben, und eine Sekundär­ spule (22), deren erster Anschluß an der Anode einer er­ sten Hochspannungsdiode (24) liegt, deren Kathode geer­ det ist, sowie an dem einen Pol (30) einer ersten Zünd­ kerze (34), deren anderer Pol (32) ebenfalls geerdet (42) ist, und deren zweiter Anschluß an der Anode einer zweiten Hochspannungsdiode (28) liegt, deren Kathode ge­ erdet ist, sowie an dem einen Pol (36) einer zweiten Zündkerze (40), deren anderer Pol (38) ebenfalls geerdet ist, umfaßt.Distributorless ignition system with at least one unit for controlling two spark plugs, each unit having two oppositely wound primary coils ( 16 , 18 ) that have a connection ( 20 ) in common, and a secondary coil ( 22 ), the first connection of which to the anode Most high-voltage diode ( 24 ) is located, the cathode of which is grounded, and on one pole ( 30 ) of a first spark plug ( 34 ), the other pole ( 32 ) of which is also grounded ( 42 ), and whose second connection to the anode is one second high-voltage diode ( 28 ), the cathode of which is grounded, and on one pole ( 36 ) of a second spark plug ( 40 ), the other pole ( 38 ) of which is also grounded.
DE19914115308 1991-05-10 1991-05-10 Distributorless ignition system for IC engine - has ignition coil with opposite wound split prim. and HV polarising diodes in sec. feeding spark plugs Withdrawn DE4115308A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19914115308 DE4115308A1 (en) 1991-05-10 1991-05-10 Distributorless ignition system for IC engine - has ignition coil with opposite wound split prim. and HV polarising diodes in sec. feeding spark plugs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19914115308 DE4115308A1 (en) 1991-05-10 1991-05-10 Distributorless ignition system for IC engine - has ignition coil with opposite wound split prim. and HV polarising diodes in sec. feeding spark plugs

Publications (1)

Publication Number Publication Date
DE4115308A1 true DE4115308A1 (en) 1992-11-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19914115308 Withdrawn DE4115308A1 (en) 1991-05-10 1991-05-10 Distributorless ignition system for IC engine - has ignition coil with opposite wound split prim. and HV polarising diodes in sec. feeding spark plugs

Country Status (1)

Country Link
DE (1) DE4115308A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0678670A2 (en) * 1994-04-19 1995-10-25 General Motors Corporation Ignition system for an internal combustion engine
US11927167B1 (en) 2023-07-20 2024-03-12 Larry Vitatoe Alternating ignition system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2339784A1 (en) * 1973-07-25 1975-02-27 Gunter Dipl Phys Dr Hartig PROCEDURE AND ARRANGEMENT FOR DISTRIBUTORLESS DISTRIBUTION
US4463744A (en) * 1980-03-07 1984-08-07 Hitachi, Ltd. Distributorless ignition system with surge absorbing means and apparatus therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2339784A1 (en) * 1973-07-25 1975-02-27 Gunter Dipl Phys Dr Hartig PROCEDURE AND ARRANGEMENT FOR DISTRIBUTORLESS DISTRIBUTION
SU648134A3 (en) * 1973-07-25 1979-02-15 Hartig Gunter Internal combustion engine ignition system
US4463744A (en) * 1980-03-07 1984-08-07 Hitachi, Ltd. Distributorless ignition system with surge absorbing means and apparatus therefor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP 63-5162 A. In: Patents Abstracts of Japan, M-706, June 8, 1988, Vol.12/No. 197 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0678670A2 (en) * 1994-04-19 1995-10-25 General Motors Corporation Ignition system for an internal combustion engine
EP0678670A3 (en) * 1994-04-19 1996-07-31 Gen Motors Corp Ignition system for an internal combustion engine.
US11927167B1 (en) 2023-07-20 2024-03-12 Larry Vitatoe Alternating ignition system

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8139 Disposal/non-payment of the annual fee