EP0244633A2 - Installation d'allumage pour moteurs à combustion - Google Patents

Installation d'allumage pour moteurs à combustion Download PDF

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Publication number
EP0244633A2
EP0244633A2 EP87104801A EP87104801A EP0244633A2 EP 0244633 A2 EP0244633 A2 EP 0244633A2 EP 87104801 A EP87104801 A EP 87104801A EP 87104801 A EP87104801 A EP 87104801A EP 0244633 A2 EP0244633 A2 EP 0244633A2
Authority
EP
European Patent Office
Prior art keywords
primary winding
control current
switching transistor
ignition system
switching
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
Application number
EP87104801A
Other languages
German (de)
English (en)
Other versions
EP0244633A3 (en
EP0244633B1 (fr
Inventor
Richard Dipl.-Ing. Schleupen
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 EP0244633A2 publication Critical patent/EP0244633A2/fr
Publication of EP0244633A3 publication Critical patent/EP0244633A3/de
Application granted granted Critical
Publication of EP0244633B1 publication Critical patent/EP0244633B1/fr
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
    • F02P3/045—Layout of circuits for control of the dwell or anti dwell time
    • F02P3/0453—Opening or closing the primary coil circuit with semiconductor devices

Definitions

  • the invention relates to an ignition system according to the preamble of the main claim.
  • the invention has for its object to provide an ignition system according to the preamble of the main claim and to avoid the aforementioned inadequacy.
  • the circuit part shown should belong to the ignition system of an internal combustion engine intended for a motor vehicle.
  • the circuit part has an ignition coil 1 with a primary winding 2 and a secondary winding 3.
  • the primary winding 2 is connected to the collector of a switching transistor 4, the emitter of which is connected to the ground line 5 connected to the negative pole of a current source (not shown).
  • the secondary winding 3 has at its one connection to the connection of the primary winding 3 facing the switching transistor 4 and at its other connection directly to the one connection of a spark plug 6.
  • the other connection of the spark plug 6 is connected to the ground line 5.
  • the primary winding 2 forms a bridge circuit in conjunction with three ohmic resistors 7, 8, 9.
  • the primary winding 2 is connected with its connection facing away from the switching transistor 4 via the bridge resistor 7 to a supply line 10 starting from the positive pole of the current source.
  • the bridge resistors 8, 9 form a series circuit which has one end at the connection between the primary winding 2 and the switching transistor 4 and the other end at the supply line 10.
  • One end of a diagonal branch 11 is connected to the one between the primary winding 2 and the bridge resistor 7 Connection and connected at its other end to the connection existing between bridge resistor 8 and bridge resistor 9.
  • Uref reference voltage
  • a zener diode 12 and the series-emitter-base path of a (pnp) control transistor 13 are used for this, the cathode of the zener diode 12 of the connection between primary winding 2 and bridge resistor 7 and the base of the control transistor 13 of the connection is facing between bridge resistor 8 and bridge resistor 9.
  • the collector of the control transistor 13 is connected to the base of an (npn) driver transistor 14, the emitter of which is connected to the ground line 5 and the collector of which is connected both to the base of the switching transistor 4 and via a resistor 15 to the supply line 10.
  • the driver transistor 14 can be controlled by a decoupling resistor 16 on its emitter-collector path in the blocking state and, depending on this, the switching transistor 4 on its emitter-collector path in its current transmission state can be controlled by a pulse i supplied by a signal generator (not shown).
  • the bridge circuit can be adjusted as a function of an operating parameter of the internal combustion engine.
  • the bridge resistance 7 is designed to be adjustable in the example, the resistance value of the bridge resistance 7 being intended to decrease as the compression D in the cylinder increases.
  • the circuit section just described has the following mode of operation: As soon as the pulse i turns the driver transistor 14 off and the switching transistor 4 on, the current in the primary winding 2 begins to rise.
  • This increase should be at least almost optimal, that is, on the one hand, it should be "fast” enough so that even at high speeds between two ignition points there is sufficient time for storing an effective ignition energy amount and at the same time there is time for the formation of powerful ignition sparks, and on the other hand the increase is not so "fast” that the voltage thereby generated in the secondary winding 3 on the spark plug 6 causes an undesirable ignition spark.
  • control transistor 13 on its emitter-collector path and, depending on it, the driver transistor 14 on its emitter-collector path is turned on by the reference voltage Uref to such an extent that it causes it at the base of the switching transistor 4 and via the emitter Collector path of the driver transistor 14 running control current branch ensures an optimal charging time constant. Good results can be achieved if the voltage drop dependent on the ohmic resistance of the primary winding 2 is at least almost compensated for with the aid of this control current branch.
  • the bridge circuit can be set as a function of at least one operating parameter of the internal combustion engine.
  • the resistance value of the bridge resistor 7 is reduced with increasing compression in the cylinder, because then the secondary voltage required for an ignition spark is also at higher values and consequently the advantage of the "rapid" current increase in the primary winding 2 can be used.
  • the bridge resistance 7, which is in series with the primary winding 2 can be selected to be higher than is necessary to compensate for the ohmic voltage drop of the primary winding 2.
  • the voltage across the secondary winding 3 thus increases with increasing current, which is possible because of the higher sparkover breakdown voltage permitted by the increasing compression

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)
EP19870104801 1986-05-09 1987-04-01 Installation d'allumage pour moteurs à combustion Expired - Lifetime EP0244633B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863615548 DE3615548A1 (de) 1986-05-09 1986-05-09 Zuendanlage fuer brennkraftmaschinen
DE3615548 1986-05-09

Publications (3)

Publication Number Publication Date
EP0244633A2 true EP0244633A2 (fr) 1987-11-11
EP0244633A3 EP0244633A3 (en) 1988-04-06
EP0244633B1 EP0244633B1 (fr) 1991-09-18

Family

ID=6300396

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870104801 Expired - Lifetime EP0244633B1 (fr) 1986-05-09 1987-04-01 Installation d'allumage pour moteurs à combustion

Country Status (3)

Country Link
US (1) US4886037A (fr)
EP (1) EP0244633B1 (fr)
DE (2) DE3615548A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991015058A1 (fr) * 1990-03-23 1991-10-03 Robert Bosch Gmbh Etage final de transistor resistant aux courts-circuits, notamment etage final d'allumage pour vehicules a moteur

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08270534A (ja) * 1995-03-31 1996-10-15 Mitsubishi Electric Corp 内燃機関用点火装置
JP3216966B2 (ja) * 1995-04-04 2001-10-09 三菱電機株式会社 内燃機関用点火装置
DE19605803A1 (de) * 1996-02-16 1997-08-21 Daug Deutsche Automobilgesells Schaltungsanordnung zur Ionenstrommessung
DE19711204C2 (de) * 1997-03-18 1999-01-14 Bosch Gmbh Robert Schaltungsanordnung einer Zündendstufe
DE19741439A1 (de) * 1997-09-19 1999-03-25 Bayerische Motoren Werke Ag Vorrichtung und Verfahren zum Einschalten des Primärstroms einer Zündspule
US6131555A (en) * 1998-04-20 2000-10-17 Cummins Engine Company, Inc. System for controlling ignition energy of an internal combustion engine
US6035838A (en) * 1998-04-20 2000-03-14 Cummins Engine Company, Inc. Controlled energy ignition system for an internal combustion engine
JP2000205034A (ja) * 1999-01-18 2000-07-25 Mitsubishi Electric Corp 内燃機関の燃焼状態検出装置
US6247465B1 (en) * 2000-02-11 2001-06-19 Delphi Technologies, Inc. System and method for preventing spark-on-make in an internal combustion engine using manifold pressure

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2217566A1 (fr) * 1973-02-10 1974-09-06 Lucas Electrical Co Ltd
US4326493A (en) * 1979-07-26 1982-04-27 Autotronic Controls, Corp. Multiple spark discharge ignition system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US432493A (en) * 1890-07-15 Martin s
US2487186A (en) * 1946-01-23 1949-11-08 Teletype Corp Plural transmitter telegraph system with number transmitter
US3145727A (en) * 1962-08-17 1964-08-25 Ajinomoto Kk Automatic liquid level control device
US3206032A (en) * 1963-06-24 1965-09-14 M C Nottingham Co Of Temple Ci Sewage disposal tank
US3805957A (en) * 1972-03-31 1974-04-23 Oldham R Inc Floating solids return device
US3931817A (en) * 1975-01-27 1976-01-13 Leonard Infranca Pediatric corrective device
DE2542677C3 (de) * 1975-09-25 1978-11-23 Robert Bosch Gmbh, 7000 Stuttgart Zündeinrichtung für eine Brennkraftmaschine
JPS6053795B2 (ja) * 1978-03-14 1985-11-27 株式会社デンソー 内燃機関点火装置
DE3007335A1 (de) * 1980-02-27 1981-09-10 Robert Bosch Gmbh, 7000 Stuttgart Zuendanlage fuer eine brennkraftmaschine
JPH0694864B2 (ja) * 1984-07-26 1994-11-24 日本電装株式会社 内燃機関用点火装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2217566A1 (fr) * 1973-02-10 1974-09-06 Lucas Electrical Co Ltd
US4326493A (en) * 1979-07-26 1982-04-27 Autotronic Controls, Corp. Multiple spark discharge ignition system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991015058A1 (fr) * 1990-03-23 1991-10-03 Robert Bosch Gmbh Etage final de transistor resistant aux courts-circuits, notamment etage final d'allumage pour vehicules a moteur

Also Published As

Publication number Publication date
EP0244633A3 (en) 1988-04-06
DE3615548A1 (de) 1987-11-12
DE3773043D1 (de) 1991-10-24
US4886037A (en) 1989-12-12
EP0244633B1 (fr) 1991-09-18

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