EP0987418A2 - Système pour le réchauffage et la mesure de courant d'ionisation et bougies pour ce système - Google Patents

Système pour le réchauffage et la mesure de courant d'ionisation et bougies pour ce système Download PDF

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Publication number
EP0987418A2
EP0987418A2 EP99115591A EP99115591A EP0987418A2 EP 0987418 A2 EP0987418 A2 EP 0987418A2 EP 99115591 A EP99115591 A EP 99115591A EP 99115591 A EP99115591 A EP 99115591A EP 0987418 A2 EP0987418 A2 EP 0987418A2
Authority
EP
European Patent Office
Prior art keywords
glow
connection
glow plug
voltage
semiconductor switch
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
EP99115591A
Other languages
German (de)
English (en)
Other versions
EP0987418B1 (fr
EP0987418A3 (fr
Inventor
Günter Uhl
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.)
BorgWarner Ludwigsburg GmbH
Original Assignee
Beru 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 Beru AG filed Critical Beru AG
Publication of EP0987418A2 publication Critical patent/EP0987418A2/fr
Publication of EP0987418A3 publication Critical patent/EP0987418A3/fr
Application granted granted Critical
Publication of EP0987418B1 publication Critical patent/EP0987418B1/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
    • F02P19/00—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition
    • F02P19/02—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition electric, e.g. layout of circuits of apparatus having glowing plugs
    • F02P19/028—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition electric, e.g. layout of circuits of apparatus having glowing plugs the glow plug being combined with or used as a sensor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
    • F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
    • F02D35/021—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions using an ionic current sensor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
    • F23Q7/001—Glowing plugs for internal-combustion engines
    • 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
    • F02P19/00—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition
    • F02P19/02—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition electric, e.g. layout of circuits of apparatus having glowing plugs
    • F02P19/021—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition electric, e.g. layout of circuits of apparatus having glowing plugs characterised by power delivery controls
    • F02P19/023—Individual control of the glow plugs

Definitions

  • the ion current measurement in the combustion chamber of a cylinder provides various information about the course of the combustion. In an engine with several cylinders, this ion current measurement can be carried out in one, in several or in all cylinders.
  • a system for glow and ion current measurement requires special glow plugs and a special control unit that not only controls the glow process as before but also provides an auxiliary voltage U H that can be applied to the glow plugs and carries out the ion current measurement.
  • the glow plugs must be designed so that at least in the area of the glow plug tip they represent a measuring electrode to which an auxiliary voltage U H can be applied. This voltage then lies between the electrode and the inner wall of the cylinder. If ions are now generated by the combustion process, a current flows. Its course allows conclusions to be drawn about the combustion process in the cylinder.
  • the glow plug is preferably designed such that parts of the heater protruding into the cylinder can also be used as an electrode. This means that the heater and electrode are electrically coupled to one another.
  • a known system ( Figure 1) consists of a number N Z of glow plugs (1) and a control unit (10); N Z is the number of cylinders in the respective engine.
  • N Z is the number of cylinders in the respective engine.
  • special ion current measuring glow plugs are required, in which the electrode (2) and the heater (3) are electrically insulated from the plug body (4).
  • Such glow plugs have two electrical connections (6) with which the glow plugs are connected to a control unit (10).
  • the control device (10) contains a control unit (15) which controls all functions; a microprocessor will preferably be used here.
  • N Z glow plugs (1) can be connected to the control unit (10).
  • Each glow plug (1) also used for ion current measurement is connected to the two switching stages (16) and (17) via two connections (13) and (14).
  • Each switching stage is controlled by a control signal for the "glow” function (18) or control signal for the "ion current measurement” function (19).
  • the "glow" function is inactive during the ion current measurement.
  • the switching stage (16) electrically isolates the glow plug (1) from the supply voltage connection (11) and the ground connection (12); at the same time, an auxiliary voltage U H for the ion current measurement is applied to the glow plug (1) connected as the measuring electrode via the switching stage (17) and the ion current measurement is carried out.
  • the system consists of a control unit (10) and a number of N Z glow plugs; N Z is the number of cylinders in the respective engine.
  • One, some or all of the glow plugs are special ion current measuring glow plugs (1) with an integrated electronic switch, which are only connected to the control unit (10) with one pole.
  • the electronic switch can also be contained in a module which is plugged onto the glow plug.
  • glow plugs (1) The design of the corresponding glow plugs (1) according to the invention is described in detail below; in principle, these special ion current measuring glow plugs (1) are constructed in such a way that the electrode (2) and the heater (3) are electrically insulated from the plug body (4). They also contain a semiconductor switch (7) and a voltage evaluation circuit (8). These glow plugs have only one electrical connection (6) for connection to the control unit (10).
  • the voltage evaluation circuit (8) evaluates changes in the voltage U GK at the connection (6) with regard to amplitude or with respect to the change over time (for example rising or falling edge) and controls the semiconductor switch (7) accordingly.
  • the control device (10) contains a control unit (15) which controls all functions; a microprocessor will preferably be used here.
  • N Z glow plugs (1) can be connected to the control unit (10).
  • Each of the glow plugs (1) also used for ion current measurement is connected to the two switching stages (16) and (17) via a connection (13).
  • Each switching stage is controlled by a control signal for the "glow” function (18) or control signal for the "ion current measurement" function (19).
  • a glow plug is also to be used for ion current measurement, an additional measuring electrode is required in the area of the glow plug tip, to which an auxiliary voltage U H is applied.
  • This voltage can be a DC or an AC voltage.
  • the voltage U H then lies between the electrode and the inner wall of the cylinder. If ions are now generated by the combustion process, a current flows. Its course allows conclusions to be drawn about the combustion process in the cylinder.
  • the glow plug is preferably designed such that parts of the heater protruding into the cylinder can also be used as an electrode. This means that the heater and electrode are electrically coupled to one another.
  • the ion current measuring glow plug must be connected to an associated control unit with two lines become.
  • the operating current of the glow plug flows over both lines. Because this stream is very high, typical values are in the range between 30 and 40 A, the lines and associated connecting devices are designed accordingly massive and thus expensive.
  • a semiconductor switch is inserted into the glow plug or into a plug on the glow plug Module, integrated, so that the operating current of the glow plug is only via one line flows; it is even possible, as with conventional glow plugs, only a single line for connection to use the glow plug.
  • the voltage U H can be a DC or an AC voltage.
  • the semiconductor switch (8) is preceded by a voltage evaluation circuit (9), which contains a threshold value detector (comparator) with the switching threshold U S , which depends on the voltage at the connection (6) or (16) and the plug body (4).
  • applied voltage U GK switches through the semiconductor switch (8): U GK ⁇ U B , or blocks: U GK ⁇ U H. If U H is an AC voltage, the amplitude or the RMS value of the voltage will preferably be evaluated.
  • the switching threshold U S will be chosen so that it is larger than U B and smaller than U H :
  • the voltage U H can be a DC or an AC voltage.
  • the semiconductor switch (8) is preceded by a voltage evaluation circuit (9), the voltage changes of U GK rated These switches in response to changes in applied to the terminal (6) or to (16) and the plug body (4) voltage U GK the semiconductor switch ( 8) by. If U H is an AC voltage, the amplitude or the RMS value of the voltage will preferably be evaluated. If U GK changes from the higher voltage U H to the voltage U B , the semiconductor switch (8) is switched through, see FIG. 10.
  • U GK is at the level of U B and then U GK is reduced by a voltage value ⁇ U, e.g. ⁇ U ⁇ 0.5 V, the semiconductor switch (8) is blocked. In response, the voltage U GK then increases again to the value U H.
  • ⁇ U e.g. ⁇ U ⁇ 0.5 V
  • the voltage U B can be a direct or an alternating voltage.
  • the voltage U B can either be switched via the switch (12) with a low resistance or via the switch (13) and the resistor (14) to the connection (6) or (16) of the glow plug, see Figure 11.
  • the semiconductor switch (8 ) A voltage evaluation circuit (9) is connected upstream, which contains a threshold value detector (comparator) with the switching threshold U S , a resistor (10) and a further semiconductor switch (11). If the semiconductor switch (11) is conductive, the resistor (10) is connected between ground and the connection (6) or (16).
  • the semiconductor switch (11) is initially conductive. If the switch (12) is switched on, the voltage U GK at the connection (6) or at (16) is equal to the voltage U B. If, on the other hand, the switch (13) is switched on, the resistors (10) and (14) form a voltage divider and the voltage U GK at the connection (6) or at (16) is less than the voltage U B. If, for example, the same values are selected for resistors (10) and (14), the voltage at connection (6) or at (16) is:
  • the switching threshold U S is selected such that it lies between the voltage determined by the voltage divider consisting of the resistors (10) and (14) and the voltage U B.
  • resistor (10) equal to resistor (14) one becomes for Choose U S :
  • the voltage evaluation circuit (9) evaluates the voltage U GK shortly after applying a voltage to connection (6) or (16) and controls the semiconductor switches (8) and (11) accordingly, see FIG. 12:

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)
  • Testing Of Engines (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
EP99115591A 1998-09-15 1999-08-06 Système pour le réchauffage et la mesure de courant d'ionisation et bougies pour ce système Expired - Lifetime EP0987418B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19842148A DE19842148C2 (de) 1998-09-15 1998-09-15 Ionenstrom-Meßglühkerze für Brennkraftmaschinen und Anordnung zum Glühen und/oder Ionenstrommessen mit einer derartigen Glühkerze
DE19842148 1998-09-15

Publications (3)

Publication Number Publication Date
EP0987418A2 true EP0987418A2 (fr) 2000-03-22
EP0987418A3 EP0987418A3 (fr) 2002-07-03
EP0987418B1 EP0987418B1 (fr) 2006-03-29

Family

ID=7880991

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99115591A Expired - Lifetime EP0987418B1 (fr) 1998-09-15 1999-08-06 Système pour le réchauffage et la mesure de courant d'ionisation et bougies pour ce système

Country Status (5)

Country Link
US (1) US6555788B1 (fr)
EP (1) EP0987418B1 (fr)
AT (1) ATE321942T1 (fr)
DE (2) DE19842148C2 (fr)
ES (1) ES2260872T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001020229A1 (fr) * 1999-09-15 2001-03-22 Robert Bosch Gmbh Bougie crayon de prechauffage
EP1001220A3 (fr) * 1998-11-13 2001-04-25 Beru AG Bougie à tige incandescente
US7122764B1 (en) 2000-08-12 2006-10-17 Robert Bosch Gmbh Sheathed element glow plug
WO2009132910A1 (fr) * 2008-04-28 2009-11-05 Robert Bosch Gmbh Procédé, appareil de commande et système pour le redémarrage d'un moteur à combustion interne
CN109374307A (zh) * 2018-10-18 2019-02-22 南京理工大学 一种可视化冷气冲击实验装置

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19935025C2 (de) * 1999-07-26 2001-05-23 Beru Ag Ionenstrommeßglühkerze und Steuergerät zu ihrer Ansteuerung
DE10015277B4 (de) * 2000-03-28 2009-01-08 Infineon Technologies Ag Vorrichtung zur Erzeugung eines Ionenstroms im Verbrennungsraum eines Dieselmotors sowie eine Glühkerze
US7349435B2 (en) * 2002-07-11 2008-03-25 Bay Microsystems, Inc. Multiport overhead cell processor for telecommunications nodes
US20050098136A1 (en) * 2003-11-10 2005-05-12 Visteon Global Technologies, Inc. Architecture to integrate ionization detection electronics into and near a diesel glow plug
JP4225273B2 (ja) * 2004-11-25 2009-02-18 株式会社デンソー グロープラグ
DE102013201530A1 (de) * 2013-01-30 2014-07-31 Leoni Bordnetz-Systeme Gmbh Kraftfahrzeug
US9534575B2 (en) 2013-07-31 2017-01-03 Borgwarner Ludwigsburg Gmbh Method for igniting a fuel/air mixture, ignition system and glow plug

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3901545A1 (de) * 1989-01-20 1990-08-02 Bosch Gmbh Robert Hochtemperatur-heizelement sowie verfahren zu seiner herstellung
JP3605990B2 (ja) * 1996-04-10 2004-12-22 株式会社デンソー イオン電流検出装置及びそれに用いられるグロープラグ
EP0834652B1 (fr) * 1996-04-10 2004-10-13 Denso Corporation Bougie de prechauffage, son procede de fabrication, et detecteur de courant ionique
JP3605965B2 (ja) * 1996-09-12 2004-12-22 株式会社デンソー グロープラグ
JP3864532B2 (ja) * 1998-01-29 2007-01-10 株式会社日本自動車部品総合研究所 イオン電流検出装置
JPH11248156A (ja) * 1998-02-26 1999-09-14 Nippon Soken Inc グロー装置
DE19852485C2 (de) * 1998-11-13 2002-09-19 Beru Ag Glühkerze und Steckanschluss für eine Glühkerze
DE29913019U1 (de) * 1999-07-26 1999-10-21 Beru AG, 71636 Ludwigsburg Ionenstrommeßglühkerze
DE10028073C2 (de) * 2000-06-07 2003-04-10 Beru Ag Verfahren und Schaltungsanordnung zum Aufheizen einer Glühkerze

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1001220A3 (fr) * 1998-11-13 2001-04-25 Beru AG Bougie à tige incandescente
WO2001020229A1 (fr) * 1999-09-15 2001-03-22 Robert Bosch Gmbh Bougie crayon de prechauffage
US7122764B1 (en) 2000-08-12 2006-10-17 Robert Bosch Gmbh Sheathed element glow plug
WO2009132910A1 (fr) * 2008-04-28 2009-11-05 Robert Bosch Gmbh Procédé, appareil de commande et système pour le redémarrage d'un moteur à combustion interne
CN109374307A (zh) * 2018-10-18 2019-02-22 南京理工大学 一种可视化冷气冲击实验装置

Also Published As

Publication number Publication date
US6555788B1 (en) 2003-04-29
ES2260872T3 (es) 2006-11-01
JP3896231B2 (ja) 2007-03-22
DE19842148A1 (de) 2000-04-06
DE19842148C2 (de) 2002-02-07
ATE321942T1 (de) 2006-04-15
JP2000097809A (ja) 2000-04-07
EP0987418B1 (fr) 2006-03-29
EP0987418A3 (fr) 2002-07-03
DE59913275D1 (de) 2006-05-18

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