EP0561808B1 - Zündanlage für brennkraftmaschinen - Google Patents

Zündanlage für brennkraftmaschinen Download PDF

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Publication number
EP0561808B1
EP0561808B1 EP91919780A EP91919780A EP0561808B1 EP 0561808 B1 EP0561808 B1 EP 0561808B1 EP 91919780 A EP91919780 A EP 91919780A EP 91919780 A EP91919780 A EP 91919780A EP 0561808 B1 EP0561808 B1 EP 0561808B1
Authority
EP
European Patent Office
Prior art keywords
voltage
resistor
ignition
transistor
arc
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
Application number
EP91919780A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0561808A1 (en
Inventor
Richard Schleupen
Ulrich Bentel
Klaus Heyke
Ulrich Nelle
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0561808A1 publication Critical patent/EP0561808A1/xx
Application granted granted Critical
Publication of EP0561808B1 publication Critical patent/EP0561808B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02P3/055—Layout of circuits with protective means to prevent damage to the circuit, e.g. semiconductor devices or the ignition coil
    • F02P3/0552—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
    • F02P11/00—Safety means for electric spark ignition, not otherwise provided for
    • F02P11/06—Indicating unsafe conditions
    • 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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four

Definitions

  • the invention relates to a circuit arrangement for ignition systems as is already known from DE-OS 27 59 155.
  • the operating voltage of an integrator device transformed on the primary side is provided to smooth the voltage.
  • This smoothed voltage is then fed to a transistor via a Zener diode and a resistor, so that the spark duration can be detected.
  • An ignition system is also known from US Pat. No. 4,918,389 or the corresponding EP-A 0 344 349, in which the ignition system is monitored by monitoring the spark duration on the primary side.
  • this method has the disadvantage that it does not provide exact information about the course of the combustion, in order to draw conclusions about the function of the ignition and / or injection system. Malfunctions cannot therefore be detected with certainty, which can lead to an increased pollutant exchange and a risk to the catalytic converter.
  • the solution according to the invention with the characterizing features of the main claim has the advantage over the known that a current is generated which is proportional to the operating voltage, which is monitored by a measuring element, and whereby precise information about the course of combustion is obtained.
  • Another advantage is the decoupling of the voltage signal and the coupling of the control signal for the ignition transistor via a signal line.
  • FIG. 1 shows the basic circuit for detecting the burning voltage
  • FIG. 2 shows the basic circuit in a modified form.
  • the basic circuit shown in FIG. 1 for detecting the operating voltage shows an ignition coil 1 consisting of a primary winding 2 and a secondary winding 3, which is connected to a spark plug 4 for the transmission of the high voltage.
  • the primary winding 2 is connected on the one hand via a supply line 5 to a battery voltage U B and on the other hand via a supply line 6 and via an ignition transistor 7 to ground potential.
  • the lead 5 is connected to the base of a pnp transistor 8, while this is connected to the lead 6 on the emitter side via a resistor 9 serving as an emitter follower.
  • the pnp transistor 8 is assigned a resistor 10, which on the other hand is connected to ground potential. The voltage drop across this resistor is detected between terminal 11 and ground potential.
  • the current flow in the primary winding 2 of the ignition coil 1 is switched on via the ignition transistor 7, that is to say energy can be stored in the primary winding 2 when the ignition transistor is activated at the base. If the control of this control transistor 7 is now interrupted, a high voltage is induced in the secondary winding 3, which is then passed on to the spark plug 4. If the explosion course is correct, the ignition spark burns out with a typical voltage curve, this burning voltage (U BRENN ) in turn being transformed into the primary winding 2 of the ignition coil 1.
  • the collector current Ic is consequently approximately proportional to the quotient of the operating voltage (U BRENN ) minus the base-emitter voltage (U BE ) of the transistor 8 and the resistance value of the resistor 9 designed as an emitter sequence. However, since this resistor 9 has a constant value and (U BE ) is negligibly low, the collector current Ic is approximately proportional to the operating voltage U BRENN . This current Ic flows from the collector of transistor 8 via resistor 10 to ground potential, it being converted at resistor 10 into an easily evaluable voltage signal which is tapped between terminal 11 and ground potential.
  • This voltage signal can now be fed via terminal 11 to evaluation electronics which, for example, monitors the function of the ignition system by comparing the detected voltage signal with a stored signal curve and initiates appropriate protective measures if errors are detected. In order to avoid that temperature influences falsify the measurement result, it is expedient if the resistors 9 and 10 have the same temperature coefficient.
  • FIG. 2 shows the basic circuit described in a slightly modified form, but the principle of detection of the voltage signal and the components used for this are the same. This becomes clear through the use of the same reference symbols for the same components.
  • a diode 12 is connected in this figure between the base of the transistor 8 and the battery voltage U B , which ensures that the base-emitter path of the ignition transistor 8 does not break down when the battery voltage is high and the transistor 7 is switched on.
  • a resistor 13 with a downstream Zener diode 14 between lead 6 and the base of a transistor 15 and a further resistor 16 are provided.
  • the pnp transistor 15 is connected on the emitter side to ground potential and on the collector side to the base of the ignition transistor 7.
  • the further resistor 16 is between the terminal 11 and the base of the ignition transistor 7. These components ensure that this transistor does not break down prematurely if the collector voltage at the ignition transistor 7 is high. That is, by using the Zener diode 14, voltages above a certain potential on the connecting line 6 are passed through the resistor 13 and the Zener diode 14 to the base of the transistor 15 and thus control this transistor 15 so that the base of the transistor 7 is on Ground potential is drawn.
  • This Figure 2 is arranged so that the control signal connection of the ignition transistor 7 can be used to output the voltage signal, which represents the operating voltage. For this purpose, however, the resistor 10 must be dimensioned accordingly in order to avoid that the transistor 7 breaks prematurely.

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)
EP91919780A 1990-12-10 1991-11-16 Zündanlage für brennkraftmaschinen Expired - Lifetime EP0561808B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4039356 1990-12-10
DE4039356A DE4039356C1 (ja) 1990-12-10 1990-12-10
PCT/DE1991/000902 WO1992010673A1 (de) 1990-12-10 1991-11-16 Zündanlage für brennkraftmaschinen

Publications (2)

Publication Number Publication Date
EP0561808A1 EP0561808A1 (en) 1993-09-29
EP0561808B1 true EP0561808B1 (de) 1996-05-22

Family

ID=6419973

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91919780A Expired - Lifetime EP0561808B1 (de) 1990-12-10 1991-11-16 Zündanlage für brennkraftmaschinen

Country Status (6)

Country Link
US (1) US5438268A (ja)
EP (1) EP0561808B1 (ja)
BR (1) BR9107158A (ja)
DE (2) DE4039356C1 (ja)
ES (1) ES2088025T3 (ja)
WO (1) WO1992010673A1 (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2688272B1 (fr) * 1992-03-03 1995-10-06 Marelli Autronica Dispositif d'allumage electronique a bobine pour moteur a allumage commande.
DE19533637A1 (de) * 1995-09-12 1997-03-13 Bosch Gmbh Robert Zündendstufe
US6278278B1 (en) 1998-08-12 2001-08-21 Siemens Aktiengesellschaft Measuring and diagnostic device for an ignition system of an internal combustion engine
DE50307122D1 (de) * 2002-08-05 2007-06-06 Thyssenkrupp Krause Gmbh Prüfschaltung für eine Zündspule und Verfahren zum Prüfen einer Zündspule
WO2006088960A2 (en) * 2005-02-15 2006-08-24 Southwest Research Institute Measurement of cn emissions from engine spark igniter for characterization of spark igniter energy
US8278959B2 (en) * 2008-12-18 2012-10-02 Semicaps Pte Ltd Method and system for measuring laser induced phenomena changes in a semiconductor device
US12116967B2 (en) 2022-09-22 2024-10-15 Woodward, Inc. Measuring a spark of a spark plug

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2759155C2 (de) * 1977-12-31 1986-04-03 Robert Bosch Gmbh, 7000 Stuttgart Schaltungsanordnung zur Erfassung der Funkendauer in Zündeinrichtungen für Brennkraftmaschinen
DE2759153C2 (de) * 1977-12-31 1986-07-31 Robert Bosch Gmbh, 7000 Stuttgart Zündeinrichtung für Brennkraftmaschinen
US4380989A (en) * 1979-11-27 1983-04-26 Nippondenso Co., Ltd. Ignition system for internal combustion engine
DE3800932A1 (de) * 1988-01-15 1989-07-27 Telefunken Electronic Gmbh Schliesszeitregelung fuer brennkraftmaschinen mit ausgelagerter zuendendstufe
DE3868066D1 (de) * 1988-04-02 1992-03-05 Bosch Gmbh Robert Beobachtung der verbrennung in einer gezuendeten brennkraftmaschine.
EP0344349B1 (en) * 1988-06-03 1994-12-07 Robert Bosch Gmbh Detecting misfiring in spark ignition engines
US4918389A (en) * 1988-06-03 1990-04-17 Robert Bosch Gmbh Detecting misfiring in spark ignition engines
DE3924130A1 (de) * 1989-07-20 1991-01-31 Bosch Gmbh Robert Vorrichtung zur erkennung fehlender oder schlechter verbrennungen in otto-motoren
US5156127A (en) * 1990-12-31 1992-10-20 Motorola, Inc. Method for optimizing plug firing time and providing diagnostic capability in an automotive ignition system
US5226394A (en) * 1991-03-07 1993-07-13 Honda Giken Kogyo Kabushiki Kaisha Misfire-detecting system for internal combustion engines
US5237279A (en) * 1991-03-07 1993-08-17 Honda Giken Kogyo Kabushiki Kaisha Ignition and fuel system misfire-detecting system for internal combustion engines

Also Published As

Publication number Publication date
DE4039356C1 (ja) 1992-07-16
US5438268A (en) 1995-08-01
EP0561808A1 (en) 1993-09-29
DE59107848D1 (de) 1996-06-27
ES2088025T3 (es) 1996-08-01
WO1992010673A1 (de) 1992-06-25
BR9107158A (pt) 1993-11-03

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