EP0827569A1 - Induktive zündeinrichtung - Google Patents
Induktive zündeinrichtungInfo
- Publication number
- EP0827569A1 EP0827569A1 EP96945739A EP96945739A EP0827569A1 EP 0827569 A1 EP0827569 A1 EP 0827569A1 EP 96945739 A EP96945739 A EP 96945739A EP 96945739 A EP96945739 A EP 96945739A EP 0827569 A1 EP0827569 A1 EP 0827569A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spark
- voltage
- ignition device
- current
- control signal
- 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
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
-
- 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
- F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
- F02P17/12—Testing characteristics of the spark, ignition voltage or current
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P17/00—Testing of ignition installations, e.g. in combination with adjusting; Testing of ignition timing in compression-ignition engines
- F02P17/12—Testing characteristics of the spark, ignition voltage or current
- F02P2017/125—Measuring ionisation of combustion gas, e.g. by using ignition circuits
-
- 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
- F02P3/0456—Opening or closing the primary coil circuit with semiconductor devices using digital techniques
Definitions
- the invention is based on an inductive ignition device for spark plugs of an internal combustion engine according to the preamble of claim 1, and also on a method for controlling a spark plug of an internal combustion engine according to the preamble of claim 10.
- Inductive ignition devices of the type mentioned here are known. They can have individual spark coils or can be equipped with an electronic high-voltage distribution. Methods of the type mentioned above are also known. Particularly at high engine speeds, it is often problematic to carry out an ion current measurement, by means of which the combustion behavior of the internal combustion engine can be monitored. It has also been shown that in this operating state the energy provided for a discharge process is not completely dissipated via a spark plug can, but rather that there is residual energy after the end of the ignition process, due to which the power loss in the ignition device can increase sharply. Attempts have already been made to provide a current limitation in the ignition output stage of the ignition device or to carry out a current limitation via primary resistors.
- the inductive ignition device according to the invention with the features mentioned in claim 1 and the method with the features listed in claim 10 are characterized in that the disadvantages mentioned here are avoided. It is ensured that an ion current measurement can be carried out without the voltage supply and the secondary initial current which is supplied to the spark plug having to be reduced. In addition, so-called residual energy operation in multi-cylinder engines is avoided even at high speed, even when controlled with only one output stage. At a given energy, the spark plugs can be controlled with a low initial current, so that there is a low spark plug wear. drawing
- Figure 1 shows a first embodiment of an inductive ignition device, each having a single spark coil for each spark plug;
- FIG. 2 shows a first embodiment of an inductive ignition device with an electronic high-voltage distribution
- FIG. 3 shows a second embodiment of an inductive ignition device with electronic high-voltage distribution
- Figure 4 is a schematic diagram of voltages and currents that can be measured within the inductive ignition devices according to Figures 1 to 3.
- FIG. 1 shows a schematic circuit diagram of an inductive ignition device 1, in which each ignition plug 3 of an internal combustion engine is assigned an ignition coil 5, also referred to as a single spark coil, which can be controlled via an ignition output stage, of which only the control signal 7 is indicated here over time is that is given to a switching device, here a transistor 9.
- a primary winding 11 ' is provided on the primary side of the ignition coil 5 and is connected on the one hand to a voltage supply marked with a plus sign and on the other hand to the ground via the transistor 9.
- a high-voltage switch 13 is provided on the secondary side of the ignition coil 5 at its high-voltage output 11 and is arranged in the connection path 15 between the high-voltage output 11 and the spark plug 3.
- the winding 17 of the secondary side of the ignition coil 5 connected to the high-voltage output 11 is, on the other hand, connected to ground via a measuring circuit 19.
- the measuring circuit 19 comprises a Zener diode 21, which is connected to a connection point 23 with its cathode and to ground with its anode. Between the connection point 23 and the ground, parallel to the zener diode 21, there is a series circuit comprising a capacitor 25 and a diode 27, the cathode of which is connected to ground and the anode of which is connected to the capacitor 25.
- a resistor 29 is connected to the anode of the diode 27 and the capacitor 25, on the other hand, is connected to ground. The resistor 29 is therefore parallel to the diode 27.
- At the junction between the diode 27 and the capacitor 25, to which the resistor 29 is also connected there is a measuring voltage output 31, to which a voltage proportional to the ion current can be measured.
- An ignition coil 5 and preferably also a measuring circuit 19 is provided for each spark plug 3 of the internal combustion engine.
- the core of the inductive ignition device 1 is the high-voltage switch 13, which is provided on the secondary side of the ignition coil 5 and is designed here as a high-voltage breakover diode, the cathode of which is at the high-voltage output 11 and the anode of which is at the spark plug 3.
- a parallel, to the high-voltage switch, dashed lines, oppositely polarized diode 33 indicates that the high-voltage switch 13 is designed to conduct backwards.
- the diode 33 allows a positive potential to reach the high-voltage output 11 and the connection path 15 to the spark gap 35 of the spark plug 3 even when the high-voltage switch is switched off.
- the positive potential U is applied via the capacitor 25 to the spark gap 35 by an ionization current I I0N . to be able to measure in a known manner.
- This ionization current provides information about the combustion process, in particular about knocking of the cylinder assigned to the spark plug 3 and about the combustion taking place in the combustion chamber.
- the current flowing on the primary side of the ignition coil 5 through the transistor 9 is designated by 1 ⁇
- the current flowing on the secondary side by I 2 - the control signal applied to the base of the transistor 9, which is generated by an output stage control, not shown here comes from is called U ES .
- the ignition point is indicated by a lightning symbol.
- the inductive ignition device 1 ' which is shown schematically in FIG. 2, basically has the same components as the ignition device in FIG Figure 1. Matching parts have been given the same reference numerals.
- a control signal 7 of an output stage control is applied to a switch, again indicated as a transistor 9, which controls a single ignition coil 5, to which a plurality of spark plugs 3a to 3 located in parallel 3n can be connected.
- a switch again indicated as a transistor 9
- the spark plugs 3a to 3n are connected via high-voltage switches 13a to 13n via a connection path 15.
- Each spark plug is assigned a separate high-voltage switch.
- a dashed diode 33a to 33n lying parallel to the high-voltage switches 13a to 13n indicates that the high-voltage switches are designed to conduct backwards.
- the energy of the ignition coil 5 is distributed (electronically) to the spark plugs 3a to 3n by appropriate activation of the high-voltage switch.
- Figure 2 shows an ignition device with electronic high voltage distribution.
- a measuring circuit 19 is again provided at the end of the winding 17 opposite the high voltage output 11, the construction of which is identical to that shown in FIG. 1 and explained. Reference is therefore made to what has been said about FIG. 1.
- a current I 1 flows on the primary side of the ignition coil 5 ; on the secondary side a current I 2 which is forwarded to the respective spark plug 3a to 3n via the high-voltage switches 13a to 13n.
- the triggering of the ignition coil 5 takes place in turn via a trigger signal 7, referred to as U ES , of an output stage driver, not shown here, which is connected to the base of the transistor 9.
- U ES trigger signal 7, referred to as U ES
- the high-voltage switch 13a to 13n is designed here purely by way of example as a light-triggered breakover diode (LKD), which comprises an overhead high-voltage diode 13'a or 13'n and a light-controllable switch 13 '' a or 13 "n.
- the light-controllable switch can be switched on
- a light signal can be controlled which is generated by a suitable light-emitting element, for example a light-emitting diode
- the light required for switching is indicated by two wavy arrows
- the current required to generate the light is identified by I EHV .
- the two diodes that is to say the light-controllable switch and the switch which can be switched overhead, are connected in series, the anode of the switch IS'a / lS'n which can be switched overhead being connected to the spark plug 3a / 3n and its cathode on the anode of the light-controllable switch 13 * * a / 13 '' n.
- the cathodes of the light-controllable switches are connected to the high-voltage output 11 of the ignition coil 5 via the connection path 15.
- the spark plugs 3a to 3n are driven with a negative potential become.
- the light-triggered breakover diodes 13a to 13n are designed to conduct backwards, that is to say they are conductive at a certain positive measurement potential, the charge on the capacitor 25, so that the ion current given over the spark gap of the spark plugs 3a to 3n I TQM can be detected.
- the measuring voltage used for the ion current measurement is 100 V to 500 V, preferably 200 V to 300 V. This applies to all circuit variations.
- FIG. 3 shows an embodiment variant of the inductive ignition device 1 ′ shown in FIG. 2 with electronic high-voltage distribution.
- the Zünd ⁇ device L 1 'in Figure 3 differs ⁇ ich aus ⁇ finally characterized in that the spark plugs 3 are driven to 3n with a positive potential, the connection path via the high-voltage output 11 and the Ver ⁇ 15 via the high voltage switches 13a to 13n to the spark plugs 3a to 3n is placed.
- the high-voltage switches 13a to 13n are in turn designed as light-triggered breakover diodes (LKD) and each have a light-controllable switch 13''a to 13''n and a high-voltage breakover diode, which is an overhead switch 13'a to 13'n.
- the switches 13a to 13n used in the circuit shown in FIG. 3 block in the reverse direction.
- the polarity of the diodes of the high-voltage switches 13a to 13n is reversed than in the exemplary embodiment shown in FIG. 2.
- the anodes of licht ⁇ controllable switch 13 " 'a to 13''n therefore lie on the connecting path 15 to the high voltage output 11, while the cathodes of the switchable switches 13'a to 13'n are on the spark plugs 3a to 3n.
- the measuring circuit 19 differs from that shown in FIGS. 1 and 2: it comprises, for example, a series circuit comprising a resistor 37, a diode 39 and a resistor 41.
- the resistor 37 is connected to the primary side of the ignition coil 5 and here with the collector of the transistor 9.
- On the other side of the resistor 37 is the anode of the diode 39, whose cathode is connected to the resistor 41 and the capacitor 42.
- the end of the capacitor 42 opposite the resistor 41, at which the voltage proportional to the ion current IJ Q N is tapped, is grounded via the resistor 44.
- connection point 23 At the end of the resistor 41 opposite the capacitor 42 there is a connection point 23 to which the high-voltage switches associated with the spark plugs 3a to 3n, here high-voltage diodes 43a to 43n, are connected, their anodes at the connection point 23 and their cathodes at the end of the Spark gap of the spark plugs 3a to 3n are connected, on which the high-voltage switches 13a to 13n are also located.
- the opposite end of the spark gap of the spark plugs 3a to 3n is grounded.
- FIG. 4 schematically shows the course of the control voltage U £ S applied to the base of the transistor 9 over time t, including the primary current 1- ⁇ in the ignition coil 5 over time, and also the secondary current I 2 in the ignition coil 5 , which is fed to the actuated spark plugs and, in a fourth partial diagram, the secondary voltage U 2 applied to the spark plugs over time t.
- the current I EHV is indicated, which is used to control the light-controllable switches 13 '' a to 13 ' ⁇ addressed in FIGS. 2 and 3 and thus the electronic high-voltage distribution .
- the control voltage U ES is present during the so-called closing time up to the point in time t and is switched off at the point in time of ignition, which is indicated by a lightning symbol.
- time t ⁇ of the primary current 1 1 increases linearly and then decreases abruptly from.
- the secondary current I 2 remains at zero and rises to its maximum value at time t.
- the peak for the ignition voltage U 2 At the same time, at time t. 1 the peak for the ignition voltage U 2 .
- the desired spark duration extends over the period t ⁇ to time t 2 .
- the secondary current I 2 drops substantially linearly during the period t 1 ⁇ t ⁇ t 2 .
- the high-voltage switches of the inductive ignition devices in FIGS. 1 to 3 can be selected such that the switches switch off at the current value of I 2 given at time t2, because the so-called holding current of these high-voltage switches is undercut.
- the spark goes out as soon as the high-voltage switch switches off. This can be done by the secondary current falling below the holding current value.
- the special design of the high-voltage switches can therefore ensure that the spark duration is limited. However, the duration of the spark can also be limited by forcibly switching off the secondary current I 2 and thereby falling below the holding current value of the high-voltage switch.
- the secondary current is switched off in that a second control signal A is emitted via the control circuit at time t 2 , on the basis of which the current 1 ⁇ flows again.
- the second control signal of the output stage control is maintained for a period of 10 ⁇ s to 500 ⁇ s.
- a control signal of 100 ⁇ s has proven particularly useful Duration.
- the current rises and falls again to zero.
- the current flow I 2 is forcibly ended.
- the current I 2 thus falls in a defined and inevitable manner to a value which is below the holding current of the high-voltage switch.
- a voltage can again be applied to the high-voltage switch in the forward direction.
- the secondary voltage U 2 rises again briefly and then drops towards zero. There is a rapid, defined reduction in the residual energy in the ignition coil, the voltage U 2 no longer exceeding the reverse voltage of the high-voltage switch. These therefore remain in their switched-off state, so that the spark plugs no longer ignite.
- the high-voltage switches 13a to 13n which are designed as light-triggered breakover diodes, are switched on by activating the light-controllable switches 13'a to 13f, n.
- the light-triggered switch place in 'activated state releases the connection between the overhead-switching switches and the Hochtentsau ⁇ gang 11, so that the overhead-switching switches can be turned on by the 13'a to 13'N Koch ⁇ voltage U. 2
- the switch which can be switched overhead is released by a current signal I £ HV , which is applied to the light-controllable switch 13 '' a to 13 '' n of the spark plug 3a to 3n to the energy of the ignition coil 5 immediately before the ignition voltage U 2 occurs at the time t ⁇ .
- the switching signal I EHV is present 100 ⁇ s before and after the time t 1 at one of the light-switchable switches 13 ' » a to 13''n. It can be seen that no further signal I EHV has to be applied to the light-switchable switches for the defined termination of the spark duration.
- the light-triggerable switches 13a to 13n, or the high-voltage breakover diodes 13'a to 13 'n assigned to these switches, are switched off exclusively by the second drive signal A applied at time t 2 , which is shown in the top part diagram of FIG. 4.
- the primary current 1 ⁇ at the time t 2 also rises again in the ignition devices shown in FIGS. 2 and 3, so that the secondary current I 2 is also ended there and - as can be seen from FIG. 4 - drops by approximately 20 mA / 50 ⁇ s, so that the spark duration is forcibly ended.
- the secondary voltage U 2 will rise again at the time t 3 when the second control signal U £ S is switched off, but without reaching the reverse voltage of the switches 13'a to 13'n which can be switched overhead, and then drop towards zero. The residual energy in the spark plug is thus rapidly reduced without the spark plugs igniting again.
- spark duration can be shortened in a targeted manner.
- high-voltage switches - be it those shown in FIG. 1 or those that have been explained with reference to FIGS. 2 and 3 - are used, the holding current of which is selected such that the secondary current I 2 is switched on at time t 2 because the holding current of the high-voltage switch is undershot.
- a significantly reliable function of the circuits is obtained if the secondary current I 2 is specifically switched off by a second control signal A, which is generated at time t 2 and is delivered to the ignition coil.
- the second control signal at time t 2 leads the secondary current I 2 down to zero in a defined manner, so that the high-voltage switches are definitely switched off and remain switched off after a certain period of time (recovery time / release time).
- the spark plugs are uncoupled from the ignition coil by the high-voltage switch which is switched off, so that the spark plugs cannot be re-ignited even after the secondary voltage U 2 rises after the time t 3 .
- a special current can be applied to the spark plugs by the special design of the circuits in FIGS. 1 to 3 and by the design of the method, whereby measuring circuits 19 or 19 ′ can be used, which are shown and explained in FIGS. 1 and 2 or 3 were.
- the measurement current that flows over the spark gap of the spark plug is evaluated while the ignition spark is no longer burning. It flows due to the ions present in the combustion chamber during the combustion. With this method, also known as ion current measurement, the combustion process can be monitored.
- the measuring current is in a range from 20 ⁇ A to 200 ⁇ A.
- a measuring current of 50 ⁇ A to 100 ⁇ A is preferably selected.
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
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19610862 | 1996-03-20 | ||
DE19610862A DE19610862A1 (de) | 1996-03-20 | 1996-03-20 | Induktive Zündeinrichtung |
PCT/DE1996/002209 WO1997035109A1 (de) | 1996-03-20 | 1996-11-20 | Induktive zündeinrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0827569A1 true EP0827569A1 (de) | 1998-03-11 |
EP0827569B1 EP0827569B1 (de) | 2000-02-23 |
Family
ID=7788798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96945739A Expired - Lifetime EP0827569B1 (de) | 1996-03-20 | 1996-11-20 | Induktive zündeinrichtung |
Country Status (8)
Country | Link |
---|---|
US (1) | US6116226A (de) |
EP (1) | EP0827569B1 (de) |
JP (1) | JPH11505588A (de) |
KR (1) | KR19990014943A (de) |
DE (2) | DE19610862A1 (de) |
ES (1) | ES2143804T3 (de) |
RU (1) | RU2169856C2 (de) |
WO (1) | WO1997035109A1 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19849258A1 (de) | 1998-10-26 | 2000-04-27 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Energieregelung an Zündsystemen mit primärseitigem Kurzschlußschalter |
JP2000205034A (ja) * | 1999-01-18 | 2000-07-25 | Mitsubishi Electric Corp | 内燃機関の燃焼状態検出装置 |
AT409406B (de) | 2000-10-16 | 2002-08-26 | Jenbacher Ag | Zündsystem mit einer zündspule |
JP4528469B2 (ja) * | 2000-12-21 | 2010-08-18 | 日本特殊陶業株式会社 | 内燃機関用点火装置 |
US6779517B2 (en) * | 2001-11-29 | 2004-08-24 | Ngk Spark Plug Co., Ltd. | Ignition device for internal combustion engine |
US6666196B2 (en) * | 2002-01-10 | 2003-12-23 | Delphi Technologies, Inc. | Ignition system having improved spark-on-make blocking diode implementation |
DE10250736A1 (de) * | 2002-10-31 | 2004-05-13 | Daimlerchrysler Ag | Verfahren zur Unterdrückung von Frühzündungen |
DE102005044030B4 (de) * | 2005-09-14 | 2011-02-17 | Stiebel Eltron Gmbh & Co. Kg | Verfahren und Einrichtung zur Ionisationsmessung bei Verbrennungskraftmaschinen mit Unterdrückung der Zündrestspannung |
DE102007029953A1 (de) * | 2007-06-28 | 2009-01-02 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zur Regelung der Zündenergie |
US8286617B2 (en) | 2010-12-23 | 2012-10-16 | Grady John K | Dual coil ignition |
BR112017024388A2 (pt) * | 2015-05-14 | 2018-07-24 | Eldor Corp Spa | sistema de ignição eletrônica para um motor de combustão interna, dispositivo eletrônico para controlar uma bobina, método para controlar a ignição eletrônica de um motor de combustão interna e programa de computador |
DE102020215994A1 (de) * | 2020-12-16 | 2022-06-23 | Robert Bosch Gesellschaft mit beschränkter Haftung | Zündeinrichtung für eine Brennkraftmaschine |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3411845A1 (de) * | 1984-03-30 | 1985-10-10 | Robert Bosch Gmbh, 7000 Stuttgart | Mehrkerzige und verteilerlose zuendanlage fuer brennkraftmaschinen |
DE4020103A1 (de) * | 1990-06-23 | 1992-01-02 | Bosch Gmbh Robert | Hochspannungsschalter bei doppelfunkenspulen-zuendanllagen |
GB2245649A (en) * | 1990-06-29 | 1992-01-08 | Champion Spark Plug Europ | Semi-conductor control of i.c.engine ignition distribution |
US5293129A (en) * | 1990-11-09 | 1994-03-08 | Mitsubishi Denki Kabushiki Kaisha | Ionic current sensing apparatus for engine spark plug with negative ignition voltage and positive DC voltage application |
DE4117808C2 (de) * | 1991-05-31 | 1994-09-22 | Bosch Gmbh Robert | Zündanlagen für Brennkraftmaschinen mit Hochspannungsschalter |
JP2951780B2 (ja) * | 1991-12-09 | 1999-09-20 | 三菱電機株式会社 | 内燃機関の燃焼検出装置 |
EP0627554B1 (de) * | 1993-05-28 | 1997-05-28 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Verteilerloses Zündsystem mit lichtgesteuerten Hochspannungsschaltern |
KR950704611A (ko) * | 1993-09-29 | 1995-11-20 | 랄프 베렌스·위르겐 프리드만 | 내연기관의 점화시스템용 고전압 스위치(High voltage switch for ignition systems of internal combustion engines) |
DE4417164C1 (de) * | 1994-05-17 | 1995-06-22 | Bosch Gmbh Robert | Hochspannungskippdiode insb. geeignet als Zündspannungsverteiler eines Verbrennungsmotors |
DE19502304A1 (de) * | 1995-01-26 | 1996-08-01 | Bosch Gmbh Robert | Zündanlage für Brennkraftmaschinen |
-
1996
- 1996-03-20 DE DE19610862A patent/DE19610862A1/de not_active Withdrawn
- 1996-11-20 US US08/952,991 patent/US6116226A/en not_active Expired - Fee Related
- 1996-11-20 KR KR1019970708289A patent/KR19990014943A/ko not_active Application Discontinuation
- 1996-11-20 DE DE59604497T patent/DE59604497D1/de not_active Expired - Fee Related
- 1996-11-20 RU RU97121502/06A patent/RU2169856C2/ru active
- 1996-11-20 EP EP96945739A patent/EP0827569B1/de not_active Expired - Lifetime
- 1996-11-20 ES ES96945739T patent/ES2143804T3/es not_active Expired - Lifetime
- 1996-11-20 JP JP9533013A patent/JPH11505588A/ja active Pending
- 1996-11-20 WO PCT/DE1996/002209 patent/WO1997035109A1/de not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO9735109A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE19610862A1 (de) | 1997-09-25 |
EP0827569B1 (de) | 2000-02-23 |
JPH11505588A (ja) | 1999-05-21 |
WO1997035109A1 (de) | 1997-09-25 |
RU2169856C2 (ru) | 2001-06-27 |
DE59604497D1 (de) | 2000-03-30 |
US6116226A (en) | 2000-09-12 |
ES2143804T3 (es) | 2000-05-16 |
KR19990014943A (ko) | 1999-02-25 |
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