EP1046814B1 - Système d'allumage pour moteur de véhicule automobile - Google Patents
Système d'allumage pour moteur de véhicule automobile Download PDFInfo
- Publication number
- EP1046814B1 EP1046814B1 EP00401080A EP00401080A EP1046814B1 EP 1046814 B1 EP1046814 B1 EP 1046814B1 EP 00401080 A EP00401080 A EP 00401080A EP 00401080 A EP00401080 A EP 00401080A EP 1046814 B1 EP1046814 B1 EP 1046814B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coils
- arc
- spark plug
- ignition
- coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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
- 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
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- 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
- F02P3/045—Layout of circuits for control of the dwell or anti dwell time
- F02P3/0453—Opening or closing the primary coil circuit with semiconductor devices
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- 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
-
- 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 present invention relates to an ignition system for an engine of motor vehicle.
- the invention relates to a system comprising ignition coil means comprising winding means primary connected to a vehicle power source through means for controlling their supply and winding means secondary connected to at least one ignition coil of the engine.
- Ignition systems conventionally used for engines gasoline vehicles indeed have an ignition coil which ensures the energy storage and increasing the voltage applied to the spark plug and more particularly between the electrodes thereof, in order to create therebetween, an arc or spark.
- this spark i.e. its duration and its intensity, depend on one hand, on the surrounding conditions in the room corresponding combustion (aerodynamic pressure, richness, temperature, etc.) and on the other hand, the performance of the ignition system (stored energy, secondary inductance, etc.).
- the generation of the spark is done in two sequential operations, namely a first charging operation during which the coil accumulates a certain amount of energy by feeding its primary winding and a second discharge operation during which the abrupt interruption of the primary current of the coil causes an increase in secondary voltage thereof until generation of the arc between the spark plug electrodes, the energy in the magnetic circuit of the coil dissipating in the arc until its extinction.
- the duration of the arc is therefore mainly a function of the energy that can store the coil.
- the arc current representative of the intensity of the spark, is to him function of the impedance of the secondary winding.
- the spark plug is likely to get dirty and it it is therefore preferable to have a low impedance ignition system secondary and whose high voltage rise time is short.
- the arc current is generally too large (greater than 100 mA).
- the fourth solution of multi-spark ignition consists in it to cause a sequence of several short sparks spaced one time required to recharge the coil.
- the advantage of this solution is that the coil can be compact and has a reduced rise time high voltage.
- the overall duration of the spark train can be adjusted according to engine operating conditions.
- the object of the invention is therefore to solve the problems mentioned previously.
- the invention relates to an ignition system for an engine of a motor vehicle, of the type comprising means forming an ignition coil comprising primary winding means, connected to a vehicle power source through means for controlling their supply and secondary winding means, connected to the minus one engine spark plug.
- the means forming ignition coil include at least two coils with windings secondary are coupled to at least one candle through means with non-return diode and whose primary windings are associated with control means (compare with 2244 Research Disclosure, 1993, April, No 348, Ensworth, GB).
- an ignition system for engine of a motor vehicle which comprises means forming an ignition coil, designated by the general reference 1 in this figure, comprising primary winding means, designated by the general reference 2, connected to a power supply source of the vehicle through control means, designated by the general reference 3 in this figure and secondary winding means, designated by the general reference 4, connected to at least one engine spark plug, designated by general reference 5.
- the system is associated with a single spark plug 5.
- the means forming an ignition coil comprise at least two separate coils, without magnetic coupling, designated by general references 6 and 7, including the secondary windings, respectively 8 and 9 are coupled to the spark plug 5 through non-return diode means 10 and 11 respectively and whose primary windings 12 and 12 respectively 13, are associated with control means 14 and 15 respectively, allowing during a first phase of operation of striking an arc between the spark plug electrodes, to power the coils simultaneously to achieve the arc voltage between the electrodes of this spark plug, then during a second phase of operation, maintenance of this arc, supplying them alternately to feed the arc without interruption.
- control means 14 and 15 each consist of a switching member semiconductor, such as for example by an NPN transistor, associated with the primary winding of each coil while being connected between a terminal this primary winding and the ground, the other terminal of this primary winding being connected to the vehicle's power supply source (+ AC).
- a switching member semiconductor such as for example by an NPN transistor
- one of the electrodes of the spark plug 5, like for example the electrode 16 is connected to ground, while the other electrode 17 thereof, is connected to the first terminals of the secondary windings 8 and 9 of the coils 6 and 7, through the non-return diode means 10 and 11, while the second terminals of these windings 8 and 9 are connected to ground.
- Vc1 and Vc2 illustrate the commands applied to the semiconductor switching elements 14 and 15
- Ip1 and Ip2 illustrate the current flowing in the primary windings of the coils
- Vs1 and Vs2 illustrate the voltages across the secondary windings of these coils
- Vs and Is respectively illustrate the voltage and the current at the terminals and in the candle 5.
- the coil 7 is then recharged that the coil 6 supplies the arc.
- the coil 7 therefore takes over to supply the spark plug, while the coil 6 is recharged in turn.
- the delay between the order of a coil and the start of recharging of the other coil ensures the continuity of the arc and avoids applying a voltage too high across the diodes.
- the current Is circulating in the candle evolves in a sawtooth pattern and a correct adjustment of the coil parameters and excitation times allows to maintain this current between two adjustable limits.
- the charging and discharging times of these coils can be adjusted according to their characteristics and it is not necessary to have high energy coils. On the contrary, it is interesting to use low secondary impedance coils including voltage rise time secondary is reduced.
- such an ignition system can be associated with two spark plugs (twin-static ignition), such as for example 5a spark plugs and 5b illustrated in FIG. 3, in which the other elements are designated by reference numbers identical to those used in Figure 1.
- twin-static ignition such as for example 5a spark plugs and 5b illustrated in FIG. 3, in which the other elements are designated by reference numbers identical to those used in Figure 1.
- two candles 5a and 5b are therefore associated, first electrodes thereof being connected together to the mass.
- the other electrode of one of the candles such as for example the candle 5a, is connected to the first terminals of the secondary windings 8 and 9 coils through the non-return diode means 10 and 11, while the other electrode of the other spark plug 5b, is connected to second terminals of the windings 8 and 9 and ground.
- such a structure also makes it possible to have a low secondary impedance allowing rapid establishment of high voltage, while implementing low energy coils and suitable for one or more several candles.
Description
- la Fig.1 représente un schéma synoptique illustrant la structure d'un premier mode de réalisation d'un système d'allumage selon l'invention;
- la Fig.2 représente différentes formes de signaux illustrant le fonctionnement de ce dispositif; et
- la Fig.3 représente un schéma synoptique illustrant la structure d'un second mode de réalisation d'un système d'allumage selon l'invention.
Claims (5)
- Système d'allumage pour moteur de véhicule automobile, du type comportant des moyens (1) formant bobine d'allumage comprenant des moyens (2) formant enroulement primaire, raccordés à une source d'alimentation du véhicule à travers des moyens (3) de commande de leur alimentation et des moyens formant enroulement secondaire (4) raccordés à au moins une bougie d'allumage (5;5a,5b) du moteur, les moyens formant bobine d'allumage comprenant au moins deux bobines (6,7), dont les enroulements secondaires (8,9) sont accouplés à au moins une bougie à travers des moyens à diode d'anti-retour (10,11) et dont les enroulements primaires sont associés à des moyens de commande (14,15), caractérisé en ce que ces moyen de commande permettent, lors d'une première phase de fonctionnement d'amorçage d'un arc entre les électrodes de la bougie, d'alimenter les bobines simultanément pour atteindre la tension d'arc entre les électrodes de cette bougie, puis lors d'une seconde phase de fonctionnement d'entretien de cet arc, d'alimenter celles-ci en alternance pour alimenter l'arc sans interruption.
- Système selon la revendication 1, caractérisé en ce que les moyens de commande comprennent un organe commutateur à semi-conducteur (14,15) associé à l'enroulement primaire de chaque bobine (6,7).
- Système selon la revendication 1 ou 2, caractérisé en ce que les deux bobines (6,7) sont associées à une bougie (5), dont une électrode (16) est reliée à la masse et dont une autre électrode (17) est reliée à des premières bornes des enroulements secondaires (8,9) des bobines (6,7) à travers les moyens à diode d'anti-retour (10,11), des secondes bornes de ces enroulements secondaires (8,9) étant reliées à la masse.
- Système selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que les deux bobines (6,7) sont associées à deux bougies (5a,5b) dont des premières électrodes sont reliées ensemble à la masse, la seconde électrode de l'une des bougies (5a) étant reliée à des premières bornes des enroulements secondaires (8,9) des bobines (6,7), à travers les moyens à diode d'anti-retour (10,11) et la seconde électrode de l'autre bougie (5b) étant reliée à des secondes bornes des enroulements secondaires (8,9) des bobines (6,7) et à la masse.
- Système selon l'une quelconque des revendications 2 à 4, caractérisé en ce que les organes commutateurs à semi-conducteur (14,15) comprennent des transistors NPN.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9904895A FR2792373A1 (fr) | 1999-04-19 | 1999-04-19 | Systeme d'allumage pour moteur de vehicule automobile |
FR9904895 | 1999-04-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1046814A1 EP1046814A1 (fr) | 2000-10-25 |
EP1046814B1 true EP1046814B1 (fr) | 2004-07-14 |
Family
ID=9544577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00401080A Expired - Lifetime EP1046814B1 (fr) | 1999-04-19 | 2000-04-18 | Système d'allumage pour moteur de véhicule automobile |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1046814B1 (fr) |
AT (1) | ATE271188T1 (fr) |
DE (1) | DE60012073T2 (fr) |
FR (1) | FR2792373A1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10231511A1 (de) * | 2002-07-12 | 2004-01-15 | Audi Ag | Zündspulensystem mit wenigstens zwei induktiven Spulen |
EP2325476B1 (fr) * | 2009-11-20 | 2016-04-13 | Delphi Technologies, Inc. | Système d'allumage couplé à charges multiples doté d'un circuit de contrôle intelligent |
JP5210361B2 (ja) * | 2010-07-14 | 2013-06-12 | 日本特殊陶業株式会社 | プラズマジェット点火プラグの点火装置、及び、点火システム |
DE102012106207B3 (de) * | 2012-03-14 | 2013-05-23 | Borgwarner Beru Systems Gmbh | Verfahren zum Ansteuern einer Funkenstrecke, insbesondere einer Zündkerze |
DE102012106158A1 (de) * | 2012-07-09 | 2014-01-09 | Borgwarner Beru Systems Gmbh | Induktive Zündanlage für einen Otto-Motor |
GB201521184D0 (en) | 2015-12-01 | 2016-01-13 | Delphi Internat Operations Luxembourg S À R L | Gaseous fuel injectors |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4859228A (fr) * | 1971-11-29 | 1973-08-20 | ||
JPS59226274A (ja) * | 1983-06-07 | 1984-12-19 | Nippon Denso Co Ltd | 内燃機関用点火装置 |
US4915087A (en) * | 1988-09-29 | 1990-04-10 | Ford Motor Company | Ignition system with enhanced combustion and fault tolerance |
US5228425A (en) * | 1991-01-04 | 1993-07-20 | Sylvan Simons | Ignition system for internal combustion engine |
-
1999
- 1999-04-19 FR FR9904895A patent/FR2792373A1/fr active Pending
-
2000
- 2000-04-18 AT AT00401080T patent/ATE271188T1/de not_active IP Right Cessation
- 2000-04-18 DE DE60012073T patent/DE60012073T2/de not_active Expired - Lifetime
- 2000-04-18 EP EP00401080A patent/EP1046814B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE60012073D1 (de) | 2004-08-19 |
EP1046814A1 (fr) | 2000-10-25 |
DE60012073T2 (de) | 2005-09-15 |
ATE271188T1 (de) | 2004-07-15 |
FR2792373A1 (fr) | 2000-10-20 |
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