EP1017940A2 - Dispositif de suppression d'allumages parasites dans un moteur a essence - Google Patents

Dispositif de suppression d'allumages parasites dans un moteur a essence

Info

Publication number
EP1017940A2
EP1017940A2 EP98958159A EP98958159A EP1017940A2 EP 1017940 A2 EP1017940 A2 EP 1017940A2 EP 98958159 A EP98958159 A EP 98958159A EP 98958159 A EP98958159 A EP 98958159A EP 1017940 A2 EP1017940 A2 EP 1017940A2
Authority
EP
European Patent Office
Prior art keywords
ignition switch
connection
capacitor
ignition
resistor
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.)
Withdrawn
Application number
EP98958159A
Other languages
German (de)
English (en)
Inventor
Ralf Förster
Alfons Fisch
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP1017940A2 publication Critical patent/EP1017940A2/fr
Withdrawn legal-status Critical Current

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
    • F02P3/04—Layout of circuits
    • F02P3/0407—Opening or closing the primary coil circuit with electronic switching means
    • F02P3/0435—Opening or closing the primary coil circuit with electronic switching means with semiconductor devices

Definitions

  • the invention relates to a device for suppressing unwanted ignitions in a gasoline engine according to the preamble of claim 1.
  • a device for suppressing unwanted ignitions in a gasoline engine is known from EP 0 370 301 AI.
  • the ignition coil is energized by means of an ignition output stage in the control of a gasoline engine, a voltage is induced on the secondary side of the ignition coil by the switching flank when the primary circuit is switched on, which voltage is capable of an ignition spark in certain operating states of the gasoline engine to produce on the spark plug, which can lead to an undesired ignition of the gasoline-air mixture and engine damage due to a premature ignition.
  • An ignition coil is a floating system, which is made up of inductors and parasitic capacitors. If this system is subjected to a switch-on flank, the secondary winding is excited into a damped oscillation, which can reach a voltage amplitude that is almost twice as high as the voltage determined by the transmission property of the ignition coil.
  • the aim is therefore to slow down the switching on of the ignition coil in such a way that no oscillation is excited and the secondary voltage thus only assumes the voltage value determined by the transmission property of the ignition coil.
  • the object of the invention is to design such a device in such a way that it manages with significantly smaller capacitance values of the capacitor.
  • the single figure shows a starter output stage of a gasoline engine, not shown, in which the primary winding 7a of an ignition coil 7 is arranged in series with an ignition switch 6 between positive pole + U and negative pole GND of an on-board voltage source 9, and the secondary winding 7b of which is connected to at least one spark plug 8.
  • the ignition switch ⁇ is designed as a so-called IGBT (I_solated-gate-bipolar-T_ransistor), which corresponds to a Darlington circuit of a MOS and a bipolar transistor.
  • the control connection (gate connection G) of the ignition switch 6 is connected via a first resistor 2 to a control circuit 1 which supplies a control signal st for the duty cycle of the P ⁇ marstro circuit.
  • This control circuit is generally a microcontroller of an engine control unit used for controlling the functions of the gasoline engine, which is assigned a defined internal resistance by the first resistor 2.
  • a series connection of a capacitor 4 connected to the collector connection C and a second resistor 5 is arranged between the collector connection C of the ignition switch 6 and the negative pole GND; and between the gate terminal G and the connection point of capacitor 4 and resistor 5, a current-conducting diode 3 is arranged away from the gate terminal.
  • This configuration allows the circuit to be easily integrated into integrated circuits.
  • the device described works as follows: when the ignition switch 6 is not conductive, the capacitor 4 is charged to the voltage U of the on-board voltage source 9.
  • Emitter terminal E of the ignition switch 6 goes towards zero.
  • the falling collector-emitter voltage U CE causes one
  • the edge of the collector-emitter voltage U CE is limited in its “slew rate”.
  • the ignition switch 6 is operated as an amplifier in the time domain of the rising primary current (the falling collector-emitter voltage U CE ).
  • Diode 3 a negative feedback via capacitor 4.
  • the circuit according to the invention requires a delay of the falling edge of the collector-emitter voltage U CE of 100 ⁇ s

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

L'invention concerne un dispositif de suppression d'allumages parasites dans un moteur à essence. Dans le dispositif selon l'invention, un enroulement primaire (7a) d'une bobine d'allumage (7) est monté en série avec un interrupteur d'allumage (6), réalisé sous forme de transistor bipolaire à grille isolée et commutable par un circuit de commande (1), et un circuit constitué d'un condensateur (C), d'une résistance (5) et d'une diode (3) est placé entre la borne de grille (G) et de collecteur (E) de l'interrupteur d'allumage (6). Lors de l'enclenchement du courant primaire, la décharge du condensateur entraîne une diminution de tension à la grille, ce qui ralentit le flanc de tension descendant au niveau du collecteur de l'interrupteur d'allumage (6).
EP98958159A 1997-09-23 1998-09-23 Dispositif de suppression d'allumages parasites dans un moteur a essence Withdrawn EP1017940A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19741963 1997-09-23
DE19741963A DE19741963C1 (de) 1997-09-23 1997-09-23 Vorrichtung zur Unterdrückung unerwünschter Zündungen bei einem Ottomotor
PCT/DE1998/002830 WO1999015788A2 (fr) 1997-09-23 1998-09-23 Dispositif de suppression d'allumages parasites dans un moteur a essence

Publications (1)

Publication Number Publication Date
EP1017940A2 true EP1017940A2 (fr) 2000-07-12

Family

ID=7843350

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98958159A Withdrawn EP1017940A2 (fr) 1997-09-23 1998-09-23 Dispositif de suppression d'allumages parasites dans un moteur a essence

Country Status (5)

Country Link
US (1) US6257216B1 (fr)
EP (1) EP1017940A2 (fr)
KR (1) KR100342337B1 (fr)
DE (1) DE19741963C1 (fr)
WO (1) WO1999015788A2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3740008B2 (ja) * 2000-10-11 2006-01-25 株式会社日立製作所 車載イグナイタ、絶縁ゲート半導体装置及びエンジンシステム
US7293554B2 (en) * 2005-03-24 2007-11-13 Visteon Global Technologies, Inc. Ignition coil driver device with slew-rate limited dwell turn-on
JP2008002392A (ja) * 2006-06-23 2008-01-10 Denso Corp 車載電子機器の出力回路
US9722599B1 (en) * 2016-01-28 2017-08-01 Infineon Technologies Austria Ag Driver for the high side switch of the cascode switch
US10243551B1 (en) 2017-09-06 2019-03-26 Alpha And Omega Semiconductor (Cayman) Ltd. Over voltage protection for cascode switching power device
US10514016B1 (en) * 2018-07-25 2019-12-24 Semiconductor Components Industries, Llc Circuit and method for soft shutdown of a coil
US11274645B2 (en) * 2019-10-15 2022-03-15 Semiconductor Components Industries, Llc Circuit and method for a kickback-limited soft shutdown of a coil

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2142266A5 (fr) * 1971-06-18 1973-01-26 Radiotechnique Compelec
US3897767A (en) * 1972-11-13 1975-08-05 Edwards Edwin Melville Internal combustion engine ignition
DE2339896B2 (de) * 1973-08-07 1977-12-08 Robert Bosch Gmbh, 7000 Stuttgart Zuendeinrichtung fuer brennkraftmaschinen
JPS5510024A (en) * 1978-07-05 1980-01-24 Nippon Soken Inc Ignition coil driver for internal combustion engine
IT1212156B (it) * 1987-12-29 1989-11-08 Marelli Autronica Sistema di accensione per un motore a combustione interna per autoveicoli in particolare del tipo a distribuzione statica
JPH073944B2 (ja) * 1988-09-16 1995-01-18 富士電機株式会社 絶縁ゲート型半導体素子の駆動方法
IT1223927B (it) * 1988-11-22 1990-09-29 Fiat Auto Spa Dispositivo di accensione a scarica induttiva per un motore a combustione interna
DE4009033A1 (de) * 1990-03-21 1991-09-26 Bosch Gmbh Robert Vorrichtung zur unterdrueckung einzelner zuendvorgaenge in einer zuendanlage
DE4117808C2 (de) * 1991-05-31 1994-09-22 Bosch Gmbh Robert Zündanlagen für Brennkraftmaschinen mit Hochspannungsschalter
US5392754A (en) * 1993-12-16 1995-02-28 Delco Electronics Corp. Method of suppressing ringing in an ignition circuit
JP3528296B2 (ja) * 1994-01-12 2004-05-17 株式会社デンソー 内燃機関用点火装置
JP3477852B2 (ja) * 1994-11-04 2003-12-10 株式会社デンソー Ｉｇｂｔ駆動回路および点火装置
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
EP0780570B1 (fr) * 1995-12-18 2002-08-14 Fuji Electric Co., Ltd. Dispositif de circuit d'allumage à semi-conducteur avec limitation de courant pour un moteur à combustion interne
JP3192074B2 (ja) * 1995-12-27 2001-07-23 株式会社日立製作所 内燃機関用点火装置
JPH09209892A (ja) * 1996-01-30 1997-08-12 Hitachi Ltd 内燃機関用点火装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9915788A2 *

Also Published As

Publication number Publication date
KR20010030686A (ko) 2001-04-16
WO1999015788A2 (fr) 1999-04-01
WO1999015788A3 (fr) 1999-05-20
KR100342337B1 (ko) 2002-07-02
DE19741963C1 (de) 1999-03-11
US6257216B1 (en) 2001-07-10

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