EP0026429B1 - Ignition system for multicylinder internal-combustion engines - Google Patents

Ignition system for multicylinder internal-combustion engines Download PDF

Info

Publication number
EP0026429B1
EP0026429B1 EP80105696A EP80105696A EP0026429B1 EP 0026429 B1 EP0026429 B1 EP 0026429B1 EP 80105696 A EP80105696 A EP 80105696A EP 80105696 A EP80105696 A EP 80105696A EP 0026429 B1 EP0026429 B1 EP 0026429B1
Authority
EP
European Patent Office
Prior art keywords
ignition
switches
energy
switch
capacitors
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
Application number
EP80105696A
Other languages
German (de)
French (fr)
Other versions
EP0026429A1 (en
Inventor
Walter Stangl
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.)
Innio Jenbacher GmbH and Co OG
Original Assignee
Jenbacher 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 Jenbacher Werke AG filed Critical Jenbacher Werke AG
Publication of EP0026429A1 publication Critical patent/EP0026429A1/en
Application granted granted Critical
Publication of EP0026429B1 publication Critical patent/EP0026429B1/en
Expired 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
    • F02P9/00—Electric spark ignition control, not otherwise provided for
    • F02P9/002—Control of spark intensity, intensifying, lengthening, suppression
    • 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
    • F02P15/10—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 continuous electric sparks
    • 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
    • F02P3/06—Other installations having capacitive energy storage
    • F02P3/08—Layout of circuits
    • F02P3/0853—Layout of circuits for control of the dwell or anti-dwell time
    • F02P3/0861—Closing the discharge circuit of the storage capacitor with semiconductor devices
    • F02P3/0869—Closing the discharge circuit of the storage capacitor 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
    • 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

Definitions

  • the invention relates to an ignition device for multi-cylinder internal combustion engines, wherein each cylinder is assigned at least one spark plug located in the secondary circuit of an ignition transformer, and wherein the primary windings of the ignition transformers can be connected to a capacitive energy source via an ignition distributor, and as an ignition distributor, at least one selector transmitter that is coupled to the internal combustion engine in a motion-locking manner is provided which clocks a step switch, the step switch successively activating switches which connect the primary winding _ of the associated ignition transformer to the energy source.
  • ignition transformers are assigned to at least each cylinder to be ignited separately, the primary windings of which can be connected to an ignition capacitor via controllable electronic switches as ignition distributors.
  • the control inputs of these switches are connected to sensors arranged in accordance with the firing order, which correspond to an initiator, for example, rotating synchronously with the crankshaft.
  • FR-A-2 374 528 shows a device in which a selector sensor which is coupled to the internal combustion engine in a movement-locking manner clocks a step switch which connects a capacitor to the respective primary winding of an ignition transformer assigned to a spark plug.
  • the disadvantage of such a device is that the time course of the ignition spark mainly depends on the one capacity, so that there is no possibility of designing the time course of the ignition spark.
  • Fig. 1 shows an energy source with a number of ignition capacitors, which can be called up via separate discharge switches, the discharge switch being controllable by means of a programmer within an ignition interval. In such a device, however, there is no selection transmitter which clocks a step switch which successively connects the primary windings of ignition transformers to the energy source via switches.
  • the invention was accordingly based on the object of avoiding the disadvantages mentioned.
  • the energy source has a number of ignition capacitors in a manner known per se, which can be called up via separate discharge switches, the discharge switches being controllable by means of a programmer within an ignition interval that the ignition capacitors together with the connection to the primary windings of the Ignition transformers producing switches are connected, and that the programmer is controlled by the same sensor assigned to the selection transmitter as the step switch.
  • an initiator For each cylinder to be ignited separately, an initiator operates as a selector in synchronism with the crankshaft, the positions of which are sensed by a stationary sensor. However, it is also conceivable that a single initiator rotating at a correspondingly higher speed is used.
  • the ignition distribution is now carried out by the step switch and the mechanical and electrical effort for the clock of the step switch is very low. Another advantage is that the entire period between the work cycles of two successive cylinders is available for the transmission of ignition energy.
  • the drawing figure shows the diagram of an ignition system for a six-cylinder engine.
  • the ignition device shown is provided for a stationary, large-volume gas engine 4 with six cylinders Z 1 -Z s .
  • Each of the cylinders has a spark plug K 1 -K 6 .
  • the spark plugs K 1 -K 6 are connected to the secondary windings of ignition transformers T I -T 6 .
  • a connection of the primary windings of the ignition transformers T 1 -T 6 is in each case connected to a controllable, electronic selection switch S 1 -S 6 , in the present case designed as triacs.
  • the other connections of the primary windings of the ignition transformers T 1 -T 6 are led to a capacitive energy store 1.
  • the capacitive energy store 1 consists of seven ignition capacitors C 1 -C 7 , which can be charged to a DC voltage source 2 via protective diodes, a charging resistor and an advantageously electronically designed charging switch 19.
  • the DC voltage source 2 can be a battery, a generator with a rectifier or the like.
  • Each of the ignition capacitors C 1 -C 7 can be connected to the primary winding of an ignition transformer to be selected via its own controllable electronic discharge switch E I -E 7 .
  • the discharge switches are again triacs in the present example.
  • a program generator 3 is provided, which consists of a Step switch 16 and a clock 17 there.
  • the selection switches S 1 -S 6 are also controlled by a step switch 11.
  • the two step switches 11 and 16 each consist of a counter Z, which corresponds to a decoder D. However, it is also possible to use a shift register or similar electronic components.
  • the outputs of the decoder assigned to the step switch 11 are connected to the control inputs G of the selection switches S 1 -S 6 in accordance with the firing order of the engine 4, while the outputs of the decoder D assigned to the step switch 16 or the programmer 3 are connected to the control inputs G of the discharge switch E. 1 -E 7 are connected in accordance with the desired ignition energy distribution within an ignition interval.
  • a selection or ignition timing transmitter 10 and a reset transmitter 9 are provided for controlling the step switch 11 and the program generator 3.
  • the two encoders 9 and 10 are coupled synchronously with the crankshaft of the engine 4.
  • the selection or ignition timing transmitter 10 consists of six magnetic initiators G 1 -G 6 mounted on a rotating disk, the position of which is sensed by
  • the reset transmitter 9 has an initiator G 7 (for example a steel pin) which is likewise mounted on a rotating disk and which is sensed by a stationary magnetic sensor 14.
  • the two sensors 13 and 14 are followed by Schmitt triggers 22 and 23.
  • the output of the Schmitt trigger 22 is connected to the clock input of a monoflop MF 1 , the output of which in turn is connected to the clock input T of the step switch 11 and to the clock input T of a flip-flop FF.
  • the output of the Schmitt trigger 23 connected downstream of the reset transmitter 9 is connected to the reset input R of the step switch 11.
  • the output ⁇ of the flip-flop FF and the output of the clock generator 17 are connected via an AND gate 21 to the clock input T of the step switch 16, while the output Q of the flip-flop FF is connected on the one hand to the reset input R of the step switch 16 and on the other hand to the clock input T of a monoflop MF 2 .
  • the monoflop MF 2 controls the charging switch 19.
  • the charge switch 19 controlled by the monoflop MF 2 closes for a predetermined time and thus connects the energy store 1 to the DC voltage source 2.
  • the individual ignition capacitors C 1 -C 7 are switched over the charging resistor R 2 .
  • Protective diodes and the diode D 2 charged.
  • the two step switches 11 and 16 are in their initial position, ie the outputs one to sixteen of the two decoders are at logic O. If the initiator G 1 of the selection transmitter 10 now induces a signal in the sensor 13, the Schmitt trigger 22 triggers the MF 1 monoflop at a certain threshold.
  • a pulse arrives at the clock input T of the step switch 11, which increments the counter Z by one stage, so that a control signal appears at the output one of the decoder D.
  • This control signal switches through the switch S 1 , for example.
  • the selection pulse of the monoflop MF 1 is applied to the clock input T of the flip-flop FF and evaluated as the ignition point.
  • the flip-flop FF releases the AND gate 21 and the clock 17 switches the step switch 16 on.
  • a control pulse appears at an output of the decoder D, which switches the discharge switches E 1 -E 7 through the control inputs G in any order.
  • the ignition capacitors C 1 -C 7 are therefore discharged via the primary coil of the selected ignition transformer T 1 .
  • the discharge of the individual ignition capacitors C 1 -C 7 can, as indicated, take place step by step, but it is also possible to vary the step spacings and thus the chronological sequence of the ignition sparks by appropriate routing. Likewise, several ignition capacitors can be discharged at the same time.
  • the last time output of the step switch 16 sets the flip-flop FF back to its starting position, whereby the AND element 21 is blocked and the monoflop MF 2 is triggered. This in turn closes the charging switch 19 for a predetermined time.
  • the initiator G 2 assigned to the next cylinder to be fired switches on the step switch 11 and the next selection switch S corresponding to the firing order is activated. At the same time, the discharge of the energy store 1 takes place.
  • the initiator G 7 of the reset transmitter 9 causes a pulse in the sensor 14, which in turn sets the Schmitt trigger 23 on the reset input of the step switch 11 to its initial position. It is easy to see that if the number of cylinders changes, the same ignition system can be used. It is only necessary to arrange a corresponding number of initiators G n .
  • ignition capacitors can be varied as desired. It is also possible to use other components, for example the use of thyristors or transistors, for the discharge and selection switches.
  • spark plugs are used per cylinder, these can be connected to separate energy stores 1 via their own ignition coils. However, it is also possible to supply several spark plugs via a single energy store.

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)

Description

Die Erfindung betrifft eine Zündeinrichtung für mehrzylindrige Brennkraftmaschinen, wobei jedem Zylinder zumindest eine im Sekundärkreis eines Zündtransformators liegende Zündkerze zugeordnet ist, und wobei die Primärwicklungen der Zündtransformatoren über einen Zündverteiler mit einer kapazitiven Energiequelle verbindbar sind, und als Zündverteiler zumindest ein bewegungsschlüssig mit der Brennkraftmaschine gekoppelter Anwahlgeber vorgesehen ist, welcher einen Schrittschalter taktet, wobei der Schrittschalter aufeinanderfolgend Schalter ansteuert, welche die Primärwicklung _des zugehörigen Zündtransformators mit der Energiequelle verbinden.The invention relates to an ignition device for multi-cylinder internal combustion engines, wherein each cylinder is assigned at least one spark plug located in the secondary circuit of an ignition transformer, and wherein the primary windings of the ignition transformers can be connected to a capacitive energy source via an ignition distributor, and as an ignition distributor, at least one selector transmitter that is coupled to the internal combustion engine in a motion-locking manner is provided which clocks a step switch, the step switch successively activating switches which connect the primary winding _ of the associated ignition transformer to the energy source.

Bekannte Zündeinrichtungen für mehrzylindrige Brennkraftmaschinen verwenden zum Teil mechanische Zündverteiler, die im Sekundärkreis eines Zündtransformators angeordnet sind. Die Nachteile dieser Zündverteiler sind bekannt, wobei insbesondere der Verschleiß durch Abbrand hervorzuheben ist.Known ignition devices for multi-cylinder internal combustion engines partly use mechanical ignition distributors which are arranged in the secondary circuit of an ignition transformer. The disadvantages of these ignition distributors are known, with the wear due to erosion being particularly emphasized.

Nach einer dem Anmelder bekannten anderen Lösung sind zumindest jedem getrennt zu zündenden Zylinder Zündtransformatoren zugeordnet, deren Primärwicklungen über steuerbare elektronische Schalter als Zündverteiler mit einem Zündkondensator verbindbar sind. Die Steuereingänge dieser Schalter sind mit entsprechend der Zündreihenfolge angeordneten Sensoren verbunden, welche mit einem beispielsweise synchron mit der Kurbelwelle umlaufenden Initiator korrespondieren. Diese Lösung kann jedoch insbesondere bei Motoren mit vielen Zylindern nicht befriedigen, da die Sensoren beispielsweise bei achtzehn Zylindern nur außerordentlich aufwendig zu montieren und schwer zu justieren sind.According to another solution known to the applicant, ignition transformers are assigned to at least each cylinder to be ignited separately, the primary windings of which can be connected to an ignition capacitor via controllable electronic switches as ignition distributors. The control inputs of these switches are connected to sensors arranged in accordance with the firing order, which correspond to an initiator, for example, rotating synchronously with the crankshaft. However, this solution cannot be satisfactory, particularly in the case of engines with many cylinders, since the sensors, for example with eighteen cylinders, are extremely difficult to assemble and difficult to adjust.

FR-A-2 374 528 zeigt eine Vorrichtung bei der ein mit der Brennkraftmaschine bewegungsschlüssig gekoppelter Anwahlgeber einen Schrittschalter taktet, der einen Kondensator mit der jeweiligen Primärwicklung eines einer Zündkerze zugeordneten Zündtransformators verbindet. Der Nachteil einer solchen Vorrichtung besteht darin, daß der zeitliche Verlauf des Zündfunkens hauptsächlich von der einen Kapazität abhängt, sodaß keine Möglichkeit der Gestaltung des zeitlichen Verlaufes des Zündfunkens besteht.FR-A-2 374 528 shows a device in which a selector sensor which is coupled to the internal combustion engine in a movement-locking manner clocks a step switch which connects a capacitor to the respective primary winding of an ignition transformer assigned to a spark plug. The disadvantage of such a device is that the time course of the ignition spark mainly depends on the one capacity, so that there is no possibility of designing the time course of the ignition spark.

In FR-A-2 155 279 zeigt z. B. Fig. 1 eine Energiequelle mit einer Anzahl von Zündkondensatoren, welche über getrennte Entladeschalter abrufbar sind, wobei die Entladeschalter mittels eines Programmgebers innerhalb eines Zündintervalls ansteuerbar sind. Bei einer solchen Vorrichtung ist jedoch kein Anwahlgeber vorgegeben, der einen Schrittschalter taktet, welcher aufeinanderfolgend die Primärwicklungen von Zündtransformatoren über Schalter mit der Energiequelle verbindet.In FR-A-2 155 279 e.g. B. Fig. 1 shows an energy source with a number of ignition capacitors, which can be called up via separate discharge switches, the discharge switch being controllable by means of a programmer within an ignition interval. In such a device, however, there is no selection transmitter which clocks a step switch which successively connects the primary windings of ignition transformers to the energy source via switches.

Der Erfindung lag demgemäß die Aufgabe zugrunde, die genannten Nachteile zu vermeiden.The invention was accordingly based on the object of avoiding the disadvantages mentioned.

Erfindungsgemäß wird hiezu vorgesehen, daß die Energiequelle in an sich bekannter Weise eine Anzahl von Zündkondensatoren aufweist, welche über getrennte Entladeschalter abrufbar sind, wobei die Entladeschalter mittels eines Programmgebers innerhalb eines Zündintervalls ansteuerbar sind, daß die Zündkondensatoren gemeinsam mit den die Verbindung zu den Primärwicklungen der Zündtransformatoren herstellenden Schaltern verbunden sind, und daß Programmgeber von demselben, dem Anwahlgeber zugeordneten Sensor angesteuert ist wie der Schrittschalter.According to the invention it is provided that the energy source has a number of ignition capacitors in a manner known per se, which can be called up via separate discharge switches, the discharge switches being controllable by means of a programmer within an ignition interval that the ignition capacitors together with the connection to the primary windings of the Ignition transformers producing switches are connected, and that the programmer is controlled by the same sensor assigned to the selection transmitter as the step switch.

Hiebei läuft für jeden getrennt zu zündenden Zylinder ein Initiator als Anwahlgeber synchron mit der Kurbelwelle um, deren Positionen von einem stationären Sensor abgetastet werden. Es ist jedoch auch denkbar, daß ein einziger mit einer entsprechend höheren Drehzahl umlaufender Initiator verwendet wird. Die Zündverteilung wird nun hier vom Schrittschalter vorgenommen und der mechanische und elektrische Aufwand für den Takt des Schrittschalters ist sehr gering. Ein weiterer Vorteil liegt darin, daß der gesamte Zeitraum zwischen den Arbeitstakten zweier aufeinanderfolgender Zylinder für die Übertragung von Zündenergie zur Verfügung steht.For each cylinder to be ignited separately, an initiator operates as a selector in synchronism with the crankshaft, the positions of which are sensed by a stationary sensor. However, it is also conceivable that a single initiator rotating at a correspondingly higher speed is used. The ignition distribution is now carried out by the step switch and the mechanical and electrical effort for the clock of the step switch is very low. Another advantage is that the entire period between the work cycles of two successive cylinders is available for the transmission of ignition energy.

Nähere Einzelheiten der Erfindung werden nachfolgend anhand eines Ausführungsbeispieles der Zündanlage für eine Brennkraftmaschine und unter Bezugnahme auf die Zeichnungsfigur erläutert.Further details of the invention are explained below using an exemplary embodiment of the ignition system for an internal combustion engine and with reference to the drawing figure.

Die Zeichnungsfigur zeigt das Schema einer Zündanlage für einen sechszylindrigen Motor.The drawing figure shows the diagram of an ignition system for a six-cylinder engine.

Die dargestellte Zündeinrichtung ist für einen stationären, großvolumigen Gasmotor 4 mit sechs Zylindern Z1-Zs vorgesehen. Jeder der Zylinder weist eine Zündkerze K1-K6 auf. Die Zündkerzen K1-K6 sind mit den Sekundärwicklungen von Zündtransformatoren TI-T6 verbunden. Ein Anschluß der Primärwicklungen der Zündtransformatoren T1-T6 ist jeweils mit einem steuerbaren, elektronischen Anwahlschalter S1-S6, im vorliegenden Fall als Triacs ausgeführt, verbunden. Die anderen Anschlüsse der Primärwicklungen der Zündtransformatoren Tl-T6 sind an einen kapazitiven Energiespeicher 1 geführt. Der kapazitive Energiespeicher 1 besteht aus sieben Zündkondensatoren Cl-C7, welche über Schutzdioden, einen Ladewiderstand und einen vorteilhaft elektronisch ausgeführten Ladeschalter 19 an einer Gleichspannungsquelle 2 aufladbar sind. Die Gleichspannungsquelle 2 kann eine Batterie, ein Generator mit Gleichrichter od. dgl. sein. Jeder der Zündkondensatoren C1-C7 ist über einen eigenen, steuerbaren elektronischen Entladeschalter EI-E7 an die Primärwicklung eines anzuwählenden Zündtransformator schaltbar. Die Entladeschalter sind im vorliegenden Beispiel wiederum Triacs.The ignition device shown is provided for a stationary, large-volume gas engine 4 with six cylinders Z 1 -Z s . Each of the cylinders has a spark plug K 1 -K 6 . The spark plugs K 1 -K 6 are connected to the secondary windings of ignition transformers T I -T 6 . A connection of the primary windings of the ignition transformers T 1 -T 6 is in each case connected to a controllable, electronic selection switch S 1 -S 6 , in the present case designed as triacs. The other connections of the primary windings of the ignition transformers T 1 -T 6 are led to a capacitive energy store 1. The capacitive energy store 1 consists of seven ignition capacitors C 1 -C 7 , which can be charged to a DC voltage source 2 via protective diodes, a charging resistor and an advantageously electronically designed charging switch 19. The DC voltage source 2 can be a battery, a generator with a rectifier or the like. Each of the ignition capacitors C 1 -C 7 can be connected to the primary winding of an ignition transformer to be selected via its own controllable electronic discharge switch E I -E 7 . The discharge switches are again triacs in the present example.

Zur Steuerung der Entladeschalter Ei-E7 ist ein Programmgeber 3 vorgesehen, der aus einem Schrittschalter 16 und einem Taktgeber 17 besteht.To control the discharge switch E i -E 7 a program generator 3 is provided, which consists of a Step switch 16 and a clock 17 there.

Die Anwahlschalter S1-S6 werden ebenfalls von einem Schrittschalter 11 angesteuert. Die beiden Schrittschalter 11 und 16 bestehen jeweils aus einer Zählstufe Z, welche mit einem Dekoder D korrespondiert. Es ist jedoch ebenfalls der Einsatz eines Schieberegisters oder ähnlicher elektronischer Bausteine möglich. Die Ausgänge des dem Schrittschalter 11 zugeordneten Dekoders sind mit den Steuereingängen G der Anwahlschalter S1-S6 entsprechend der Zündreihenfolge des Motors 4 verbunden, während die Ausgänge des dem Schrittschalter 16 bzw. dem Programmgeber 3 zugeordneten Dekoders D mit den Steuereingängen G der Entladeschalter E1-E7 entsprechend der gewünschten Zündenergieverteilung innerhalb eines Zündintervalls verbunden sind. Zur Steuerung des Schrittschalters 11 und des Programmgebers 3 ist ein Anwahl- bzw. Zündzeitpunktgeber 10 und ein Rücksetzgeber 9 vorgesehen. Die beiden Geber 9 und 10 sind synchron mit der Kurbelwelle des Motors 4 gekoppelt. Der Anwahl- bzw. Zündzeitpunktgeber 10 besteht aus sechs auf einer umlaufenden Scheibe angebrachten magnetischen Initiatoren G1-G6, deren Position von einem stationären Sensor 13 abgetastet wird.The selection switches S 1 -S 6 are also controlled by a step switch 11. The two step switches 11 and 16 each consist of a counter Z, which corresponds to a decoder D. However, it is also possible to use a shift register or similar electronic components. The outputs of the decoder assigned to the step switch 11 are connected to the control inputs G of the selection switches S 1 -S 6 in accordance with the firing order of the engine 4, while the outputs of the decoder D assigned to the step switch 16 or the programmer 3 are connected to the control inputs G of the discharge switch E. 1 -E 7 are connected in accordance with the desired ignition energy distribution within an ignition interval. A selection or ignition timing transmitter 10 and a reset transmitter 9 are provided for controlling the step switch 11 and the program generator 3. The two encoders 9 and 10 are coupled synchronously with the crankshaft of the engine 4. The selection or ignition timing transmitter 10 consists of six magnetic initiators G 1 -G 6 mounted on a rotating disk, the position of which is sensed by a stationary sensor 13.

Der Rücksetzgeber 9 weist einen ebenfalls auf einer umlaufenden Scheibe montierten Initiator G7 (z. B. einen Stahlstift) auf, welcher von einem stationären magnetischen Sensor 14 abgetastet wird. Den beiden Sensoren 13 und 14 sind Schmitt-Trigger 22 und 23 nachgeschaltet. Der Ausgang des Schmitt-Triggers 22 ist mit dem Takteingang eines Monoflops MF1 verbunden, dessen Ausgang wiederum auf den Takteingang T des Schrittschalters 11 sowie auf den Takteingang T eines Flip-Flops FF geführt ist. Der Ausgang des dem Rücksetzgeber 9 nachgeschalteten Schmitt-Triggers 23 ist mit dem Rücksetzeingang R des Schrittschalters 11 verbunden. Der Ausgang Ö des flip-Flops FF sowie der Ausgang des Taktgebers 17 sind über ein Und-Glied 21 an den Takteingang T des Schrittschalters 16 geführt, während der Ausgang Q des Flip-Flops FF einerseits an den Rücksetzeingang R des Schrittschalters 16 und anderseits an den Takteingang T eines Monoflops MF2 geschaltet ist. Das Monoflop MF2 steuert den Ladeschalter 19.The reset transmitter 9 has an initiator G 7 (for example a steel pin) which is likewise mounted on a rotating disk and which is sensed by a stationary magnetic sensor 14. The two sensors 13 and 14 are followed by Schmitt triggers 22 and 23. The output of the Schmitt trigger 22 is connected to the clock input of a monoflop MF 1 , the output of which in turn is connected to the clock input T of the step switch 11 and to the clock input T of a flip-flop FF. The output of the Schmitt trigger 23 connected downstream of the reset transmitter 9 is connected to the reset input R of the step switch 11. The output Ö of the flip-flop FF and the output of the clock generator 17 are connected via an AND gate 21 to the clock input T of the step switch 16, while the output Q of the flip-flop FF is connected on the one hand to the reset input R of the step switch 16 and on the other hand to the clock input T of a monoflop MF 2 . The monoflop MF 2 controls the charging switch 19.

Nachfolgend wird die Funktion der Zündeinrichtung im Betrieb der Brennkraftmaschine beschrieben.The function of the ignition device during operation of the internal combustion engine is described below.

Vor Beginn eines Zündintervalls schließt der durch das Monoflop MF2 gesteuerte Ladeschalter 19 für eine vorbestimmte Zeit und verbindet so den Energiespeicher 1 mit der Gleichspannungsquelle 2. Dabei werden die einzelnen Zündkondensatoren C1-C7 über den Ladewiderstand R2. Schutzdioden und die Diode D2 aufgeladen. Die beiden Schrittschalter 11 und 16 befinden sich in ihrer Ausgangsstellung, d. h. die Ausgänge eins bis sechzehn der beiden Dekoder liegen auf logisch O. Induziert nun der Initiator G1 des Anwahlgebers 10 in dem Sensor 13 ein Signal, so triggert der Schmitt-Trigger 22 ab einer bestimmten Schwelle das Monoflop MF1. An den Takteingang T des Schrittschalters 11 gelangt daher ein Impuls, welcher den Zähler Z um eine Stufe weiterschaltet, sodaß am Ausgang eins des Dekoders D ein Steuersignal erscheint. Dieses Steuersignal schaltet beispielsweise den Schalter S1 durch. Zugleich wird der Anwahlimpuls des Monoflops MF1 an den Takteingang T des Flip-Flops FF gelegt und als Zündzeitpunkt ausgewertet. das Flip-Flop FF gibt das Und-Glied 21 frei und der Taktgeber 17 schaltet den Schrittschalter 16 weiter. Mit jedem Taktimpuls erscheint an einem Ausgang des Dekoders D ein Steuerimpuls, welcher über die Steuereingänge G die Entladeschalter E1-E7 in beliebiger Reihenfolge durchschaltet. Die Zündkondensatoren C1-C7 werden daher über die Primärspule des angewählten Zündtransformators T1 entladen. Die Entladung der einzelnen Zündkondensatoren C1-C7 kann dabei, wie angedeutet, Schritt für Schritt erfolgen, doch ist es auch möglich, die Schrittabstände und damit die zeitliche Aufeinanderfolge der Zündfunken durch entsprechende Rangierung zu variieren. Ebenso können mehrere Zündkondensatoren zugleich entladen werden. Der zeitliche letzte Ausgang des Schrittschalters 16 setzt das Flip-Flop FF wieder in seine Ausgangslage, wodurch das Und-Glied 21 gesperrt und das Monoflop MF2 ausgelöst wird. Dieses schließt wiederum den Ladeschalter 19 für eine vorbestimmte Zeit.Before the start of an ignition interval, the charge switch 19 controlled by the monoflop MF 2 closes for a predetermined time and thus connects the energy store 1 to the DC voltage source 2. The individual ignition capacitors C 1 -C 7 are switched over the charging resistor R 2 . Protective diodes and the diode D 2 charged. The two step switches 11 and 16 are in their initial position, ie the outputs one to sixteen of the two decoders are at logic O. If the initiator G 1 of the selection transmitter 10 now induces a signal in the sensor 13, the Schmitt trigger 22 triggers the MF 1 monoflop at a certain threshold. Therefore, a pulse arrives at the clock input T of the step switch 11, which increments the counter Z by one stage, so that a control signal appears at the output one of the decoder D. This control signal switches through the switch S 1 , for example. At the same time, the selection pulse of the monoflop MF 1 is applied to the clock input T of the flip-flop FF and evaluated as the ignition point. the flip-flop FF releases the AND gate 21 and the clock 17 switches the step switch 16 on. With each clock pulse, a control pulse appears at an output of the decoder D, which switches the discharge switches E 1 -E 7 through the control inputs G in any order. The ignition capacitors C 1 -C 7 are therefore discharged via the primary coil of the selected ignition transformer T 1 . The discharge of the individual ignition capacitors C 1 -C 7 can, as indicated, take place step by step, but it is also possible to vary the step spacings and thus the chronological sequence of the ignition sparks by appropriate routing. Likewise, several ignition capacitors can be discharged at the same time. The last time output of the step switch 16 sets the flip-flop FF back to its starting position, whereby the AND element 21 is blocked and the monoflop MF 2 is triggered. This in turn closes the charging switch 19 for a predetermined time.

Der dem nächsten zu zündenden Zylinder zugeordnete Initiator G2 schaltet den Schrittschalter 11 weiter und der entsprechend der Zündreihenfolge nächste Anwahlschalter S wird angesteuert. Zugleich läuft wiederum die Entladung des Energiespeichers 1 ab. Nach Ablauf eines Zündspiels, d. h. nach einer Zündung aller . sechs Zylinder Z1-Z6 bzw. einer Umdrehung der Kurbelwelle bewirkt der Initiator G7 des Rücksetzgebers 9 in dem Sensor 14 einen Impuls, welcher wiederum über einen Schmitt-Trigger 23 auf den Rücksetzeingang des Schrittschalters 11 letzteren in seine Ausgangsstellung setzt. Es ist leicht ersichtlich, daß bei einer Änderung der Zylinderzahl dieselbe Zündanlage verwendet werden kann. Es müssen lediglich entsprechend viele Initiatoren Gn angeordnet werden.The initiator G 2 assigned to the next cylinder to be fired switches on the step switch 11 and the next selection switch S corresponding to the firing order is activated. At the same time, the discharge of the energy store 1 takes place. After the end of an ignition game, ie after all have been ignited. six cylinders Z 1 -Z 6 or one revolution of the crankshaft, the initiator G 7 of the reset transmitter 9 causes a pulse in the sensor 14, which in turn sets the Schmitt trigger 23 on the reset input of the step switch 11 to its initial position. It is easy to see that if the number of cylinders changes, the same ignition system can be used. It is only necessary to arrange a corresponding number of initiators G n .

Abschließend sei noch darauf hingewiesen, daß die Anzahl der Zündkondensatoren beliebig varriert werden kann. Ebenso ist der Einsatz anderer Bauelemente, beispielsweise der Einsatz von Thyristoren oder Transistoren, für die Entlade- und Anwahlschalter möglich.Finally, it should be pointed out that the number of ignition capacitors can be varied as desired. It is also possible to use other components, for example the use of thyristors or transistors, for the discharge and selection switches.

Kommen pro Zylinder mehrere Zündkerzen zum Einsatz, so können diese über eigenen Zündspulen mit gesonderten Energiespeichern 1 verbunden sein. Ebenso jedoch ist die Speisung mehrerer Zündkerzen über einen einzigen Energiespeicher möglich.If several spark plugs are used per cylinder, these can be connected to separate energy stores 1 via their own ignition coils. However, it is also possible to supply several spark plugs via a single energy store.

Claims (1)

  1. Ignition device for multi-cylinder internal combustion engines (4), whereby at least one spark plug (K1-K6) arranged in the secondary circuit of an ignition transformer (T1-T6) is associated with each cylinder (Z1-Z6), and whereby the primary windings of the ignition transformers are connectable with a capacitive source of energy (1) by an ignition distributor, and at least one trigger means (10) positively connected to the internal combustion engine is provided as ignition distributor, said trigger means clocking a step-by-step actuator (11), the step-by-step actuator (11) successively operating switches (S1-S6) connecting the primary winding of the associated ignition transformer (T1-T6) with the source of energy (1), characterized in that the source of energy (1), comprises, in a manner known per se, a number of ignition capacitors (C1-C7) operable by separate discharge switches (El-E7), the discharge switches (E1-E7) being operable within one ig" nition interval by means of a programming circuit (3), that the ignition capacitors (Cl-C7) are commonly linked to the switches (Sl-S6) providing connection with the primary windings of the ignition transformers (T1-T6), and that the programming circuit (3) is controlled by the same sensor (13), which is associated with the charging switch (19), as the step-by-step actuator (11).
EP80105696A 1979-10-01 1980-09-23 Ignition system for multicylinder internal-combustion engines Expired EP0026429B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0638979A AT384862B (en) 1979-10-01 1979-10-01 IGNITION DEVICE FOR MULTI-CYLINDER INTERNAL COMBUSTION ENGINES
AT6389/79 1979-10-01

Publications (2)

Publication Number Publication Date
EP0026429A1 EP0026429A1 (en) 1981-04-08
EP0026429B1 true EP0026429B1 (en) 1983-03-30

Family

ID=3585843

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80105696A Expired EP0026429B1 (en) 1979-10-01 1980-09-23 Ignition system for multicylinder internal-combustion engines

Country Status (5)

Country Link
US (1) US4359037A (en)
EP (1) EP0026429B1 (en)
JP (1) JPS5656970A (en)
AT (1) AT384862B (en)
DE (1) DE3062541D1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57203867A (en) * 1981-06-09 1982-12-14 Nissan Motor Co Ltd Plasma ignition apparatus
JPS57198372U (en) * 1981-06-12 1982-12-16
WO1983000192A1 (en) * 1981-07-02 1983-01-20 Mackie, Ronald, D. Electronic ignition system for internal combustion engines
DE3278479D1 (en) * 1981-07-03 1988-06-16 Nissan Motor Ignition system for an internal combustion engine
JPS5823281A (en) * 1981-08-06 1983-02-10 Nissan Motor Co Ltd Ignition device of internal combustion engine
JPS6073059A (en) * 1983-09-28 1985-04-25 Mitsubishi Electric Corp Igniter for internal-combustion engine
JPH0639947B2 (en) * 1986-05-08 1994-05-25 株式会社日立製作所 Low voltage electronic distribution ignition device
DE3822794A1 (en) * 1988-07-06 1990-01-11 Vogler Johannes Dipl Ing Dipl Distributorless capacitor ignition system for internal combustion engines
IT1232580B (en) * 1989-02-13 1992-02-26 Fiat Auto Spa STATIC IGNITION DEVICE FOR INTERNAL COMBUSTION ENGINES
DE3924985A1 (en) * 1989-07-28 1991-02-07 Volkswagen Ag FULLY ELECTRONIC IGNITION DEVICE FOR AN INTERNAL COMBUSTION ENGINE
DE4005544A1 (en) * 1990-02-22 1991-08-29 Bosch Gmbh Robert DISTRIBUTION OF THE IGNITION SIGNAL IN A SYSTEM WITH A RESISTANT HIGH VOLTAGE DISTRIBUTION
DE9115218U1 (en) * 1991-12-07 1992-03-19 Dreyer, Dietmar, Dipl.-Ing. (Fh), 3078 Stolzenau, De
CA2128036C (en) * 1993-07-15 2003-11-04 Howard Vincent Bonavia Ignition system using multiple gated switches with variable discharge energy levels and rates
US5754011A (en) * 1995-07-14 1998-05-19 Unison Industries Limited Partnership Method and apparatus for controllably generating sparks in an ignition system or the like
DE10052121B4 (en) * 2000-10-19 2016-03-31 Volkswagen Ag Internal combustion engine with at least two engine control units
US7912618B2 (en) * 2008-01-22 2011-03-22 Honda Motor Co., Ltd. Backup relay cut control system
US10753335B2 (en) 2018-03-22 2020-08-25 Continental Motors, Inc. Engine ignition timing and power supply system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2374528A1 (en) * 1976-12-17 1978-07-13 Cii ELECTRONIC IGNITION SYSTEM AND INTERNAL COMBUSTION ENGINE EQUIPPED WITH SUCH A SYSTEM

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5125530B1 (en) * 1971-06-24 1976-07-31
FR2155279A5 (en) * 1971-09-14 1973-05-18 Licentia Gmbh
DE2352694C2 (en) * 1973-10-20 1983-05-19 Robert Bosch Gmbh, 7000 Stuttgart Digital circuit arrangement for triggering an operating process, in particular the ignition process of an internal combustion engine
JPS51101639A (en) * 1975-03-03 1976-09-08 Soichi Hisada NAINENKIKANNOTENKASOCHI
JPS586065B2 (en) * 1976-06-21 1983-02-02 国産電機株式会社 Ignition system for multi-cylinder internal combustion engines
DE2723781A1 (en) * 1977-05-26 1978-12-07 Bosch Gmbh Robert IGNITION SYSTEM WITH A MECHANICAL NON-MOVING HIGH VOLTAGE DISTRIBUTION
US4194480A (en) * 1977-12-21 1980-03-25 Ford Motor Company Voltage distributor for a spark ignition engine
US4208992A (en) * 1978-03-20 1980-06-24 Benito Polo Electronic ignition system
US4269152A (en) * 1978-05-22 1981-05-26 The Bendix Corporation Breakerless pulse distribution system and opto-electrical distributor therefor
US4265211A (en) * 1979-11-23 1981-05-05 General Motors Corporation Distributorless internal combustion engine ignition system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2374528A1 (en) * 1976-12-17 1978-07-13 Cii ELECTRONIC IGNITION SYSTEM AND INTERNAL COMBUSTION ENGINE EQUIPPED WITH SUCH A SYSTEM

Also Published As

Publication number Publication date
DE3062541D1 (en) 1983-05-05
US4359037A (en) 1982-11-16
JPS5656970A (en) 1981-05-19
AT384862B (en) 1988-01-25
EP0026429A1 (en) 1981-04-08
ATA638979A (en) 1987-06-15

Similar Documents

Publication Publication Date Title
EP0026429B1 (en) Ignition system for multicylinder internal-combustion engines
DE2739223C2 (en) Electrically controlled fuel injection system for an internal combustion engine
DE2732781A1 (en) DEVICE FOR CONTROLLING OPERATING PARAMETER-DEPENDENT AND REPEATING ACTIVITIES
DE1526505A1 (en) Fuel injection system
DE2352694A1 (en) DIGITAL CIRCUIT ARRANGEMENT FOR TRIGGERING AN OPERATING PROCESS, IN PARTICULAR THE FINAL PROCESS OF A COMBUSTION MACHINE
DE2102688A1 (en) Ignition system for an internal combustion engine
DE3312950C2 (en)
DE1751330B1 (en) Electrically controlled fuel injection system for internal combustion engines
DE2929516A1 (en) FUEL SUPPLY CONTROL ARRANGEMENT FOR MULTI-CYLINDER INTERNAL COMBUSTION ENGINE
DE2623613A1 (en) IGNITION SYSTEM WITH A IGNITION ANGLE ADJUSTMENT DEVICE
DE2331266A1 (en) CIRCUIT ARRANGEMENT FOR SYNCHRONIZING A SUCCESSIVE INJECTION SYSTEM FOR INJECTION ENGINES WITH THE CYLINDER STROKE SEQUENCE
DE3735820A1 (en) IGNITION CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINES
DE2711432A1 (en) IGNITION SYSTEM, IN PARTICULAR FOR COMBUSTION MACHINERY
DE2619556A1 (en) IGNITION SYSTEM, IN PARTICULAR FOR COMBUSTION MACHINERY
DE3924985C2 (en)
DE1526498A1 (en) Method and device for controlling fuel injection in an internal combustion engine
DE4016307C2 (en) Ignition circuit monitoring on an internal combustion engine
EP1313947A1 (en) Method for operating an internal combustion engine and corresponding arrangement
DE4313172A1 (en) Ignition system for internal combustion engines with double ignition
DE2325479C3 (en) Method and device for the speed-dependent setting of the ignition angle of a spark-ignition internal combustion engine
DE3017972C2 (en) Control device for multiple ignition and / or fuel injection output stages for internal combustion engines
DE19645826A1 (en) Method of regulating IC engine using preset and variable controllers
DE2248530C3 (en) Electrically controlled fuel injection device for a diesel internal combustion engine
DE2650262C3 (en) Device for the correct timing of electromagnetic injection valves for four-stroke multi-cylinder internal combustion engines
DE918298C (en) Switching device for two- and four-stroke internal combustion engines with battery or magneto ignition to achieve periodically interrupted ignition

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

Designated state(s): BE CH DE FR GB IT NL SE

17P Request for examination filed

Effective date: 19811005

ITF It: translation for a ep patent filed

Owner name: ING. BETTELLO LUIGI

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE CH DE FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 3062541

Country of ref document: DE

Date of ref document: 19830505

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19840927

Year of fee payment: 5

Ref country code: DE

Payment date: 19840927

Year of fee payment: 5

Ref country code: CH

Payment date: 19840927

Year of fee payment: 5

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

Ref country code: SE

Payment date: 19840930

Year of fee payment: 5

Ref country code: NL

Payment date: 19840930

Year of fee payment: 5

Ref country code: BE

Payment date: 19840930

Year of fee payment: 5

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

Ref country code: SE

Effective date: 19850924

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

Ref country code: LI

Effective date: 19850930

Ref country code: CH

Effective date: 19850930

Ref country code: BE

Effective date: 19850930

BERE Be: lapsed

Owner name: JENBACHER WERKE A.G.

Effective date: 19850923

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

Ref country code: NL

Effective date: 19860401

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

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

Effective date: 19860530

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: DE

Effective date: 19860603

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: GB

Effective date: 19881118

EUG Se: european patent has lapsed

Ref document number: 80105696.1

Effective date: 19860729

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